WO2014208013A1 - 薄膜トランジスタアレイ、その製造方法、画像表示装置及び表示方法 - Google Patents
薄膜トランジスタアレイ、その製造方法、画像表示装置及び表示方法 Download PDFInfo
- Publication number
- WO2014208013A1 WO2014208013A1 PCT/JP2014/002961 JP2014002961W WO2014208013A1 WO 2014208013 A1 WO2014208013 A1 WO 2014208013A1 JP 2014002961 W JP2014002961 W JP 2014002961W WO 2014208013 A1 WO2014208013 A1 WO 2014208013A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- source
- wiring
- capacitor
- gate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/13624—Active matrix addressed cells having more than one switching element per pixel
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/01—Manufacture or treatment
- H10D86/021—Manufacture or treatment of multiple TFTs
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/411—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs characterised by materials, geometry or structure of the substrates
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/441—Interconnections, e.g. scanning lines
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/441—Interconnections, e.g. scanning lines
- H10D86/443—Interconnections, e.g. scanning lines adapted for preventing breakage, peeling or short circuiting
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/451—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs characterised by the compositions or shapes of the interlayer dielectrics
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/481—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs integrated with passive devices, e.g. auxiliary capacitors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D86/00—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates
- H10D86/40—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs
- H10D86/60—Integrated devices formed in or on insulating or conducting substrates, e.g. formed in silicon-on-insulator [SOI] substrates or on stainless steel or glass substrates characterised by multiple TFTs wherein the TFTs are in active matrices
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136213—Storage capacitors associated with the pixel electrode
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
- G02F1/136263—Line defects
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136259—Repairing; Defects
- G02F1/136272—Auxiliary lines
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/50—Protective arrangements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0204—Compensation of DC component across the pixels in flat panels
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/08—Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
Definitions
- the present invention relates to a thin film transistor array, and more particularly to a thin film transistor array suitable for a flexible substrate or a printing method.
- amorphous silicon (a-Si) and polysilicon (poly-Si) thin film transistor (Thin Film Transistor: TFT) arrays are manufactured on a glass substrate. And electrophoretic displays.
- the TFT plays the role of a switch, and when the TFT is turned on by a selection voltage applied to the gate wiring, the signal voltage applied to the source wiring is written to the pixel electrode connected to the drain.
- the written voltage is held in a storage capacitor constituted by a pixel electrode / gate insulating film / capacitor electrode. A voltage is applied to the capacitor electrode from the capacitor wiring.
- the function of the source and drain varies depending on the polarity of the voltage to be written. Therefore, for convenience, one is called a source and the other is called a drain, and the names are unified.
- the one connected to the wiring is called a source, and the one connected to the pixel electrode is called a drain.
- Patent Document 1 discloses that a bridge portion 31 is added to the source wiring 4 'to form a ladder so that the influence of the disconnection of the source wiring 4' is eliminated (FIG. 19). However, this does not show how to correct the short-circuit defect.
- Patent Document 2 discloses a thin film transistor array having two TFTs per pixel (FIG. 20). When there is a short circuit between the source electrode 4 and the drain electrode 5 of one of the two TFTs, the influence is reduced by separating the TFT with a laser. However, in that case, there arises a problem that the on-state current is halved and a problem that the gate feedthrough voltage is reduced.
- the gate-drain capacitance is reduced to one, so that the gate feedthrough voltage at which the pixel potential changes when the gate potential is turned off becomes small. If this gate feedthrough voltage cannot be ignored, the reference potential of the counter electrode is shifted by the same amount as the gate feedthrough voltage in order to cancel the influence of the gate feedthrough voltage. It is assumed that the feedthrough voltage is equivalent. Since the gate feedthrough voltage is almost halved in a pixel with one TFT separated, about half of the gate feedthrough voltage is always applied between the counter electrode and the pixel. In the case of an electrophoretic display, the display state is displayed. There was a problem that was slightly shifted. In addition, the liquid crystal display has a problem that a direct current component is applied to the liquid crystal and the image sticking easily occurs.
- JP-A-10-133228 Japanese Patent Application Laid-Open No. 07-199221
- the present invention has been made in view of the state of the related art, and is suitable for various short-circuit repairs while suppressing the influence of disconnection, and can reduce differences in display after repair, and a method for manufacturing the same
- An object of the present invention is to provide an image display device and a display method.
- One aspect of the present invention for solving the above problems overlaps with a gate electrode, a gate wiring connected to the gate electrode, a capacitor electrode, and a gate electrode over an insulating substrate on which the capacitor wiring connected to the capacitor electrode is formed.
- a source electrode and a drain electrode having a gap including a semiconductor pattern are formed via a gate insulating film, and the semiconductor pattern is covered with a protective layer.
- the thin film transistor includes two thin film transistors for each pixel.
- the source connection electrode may have at least a portion that does not overlap with the gate electrode and the gate wiring.
- the protective layer has a stripe shape along the gate wiring, and may cover not only the semiconductor pattern but also the gate wiring.
- an insulating film covering at least the source wiring may be further provided.
- the protective layer has a stripe shape along the source wiring, and may cover not only the semiconductor pattern but also the source wiring.
- an insulating film covering at least the source connection electrode and the gate wiring may be further provided.
- the pixel electrode may have a first capacitor close to the drain electrode and a second capacitor far from the drain electrode.
- the capacitor electrode has a slit at least in a region overlapping with the pixel electrode, and is divided into a first capacitor electrode closer to the drain electrode and a second capacitor electrode farther from the drain electrode by the slit. May be composed of a pixel electrode / gate insulating film / first capacitor electrode, and the second capacitor may be composed of pixel electrode / gate insulating film / second capacitor electrode.
- An insulating film having an opening on the first capacitor portion of the pixel electrode and covering at least the second capacitor portion of the pixel electrode, the source electrode, the source connection electrode, and the source wiring; An upper pixel electrode connected to the pixel electrode through the opening may be further provided.
- Another aspect of the present invention is a method of manufacturing the above-described thin film transistor array, the step of forming a gate electrode, a gate wiring, a capacitor electrode, and a capacitor wiring on an insulating substrate, and the gate electrode and the gate wiring.
- the step of inspecting disconnection or short circuit may be image inspection.
- the drain connection electrode of the thin film transistor having the short circuit does not overlap the gate electrode, the gate wiring, the capacitor electrode, and the capacitor wiring.
- at least one side of the source wiring with the short circuit is the most in the two locations of the source wiring sandwiching the short circuit location and the short circuit location Cut the drain connection electrode and the source connection electrode of the thin film transistor at a position that does not overlap with the gate electrode, the gate wiring, the capacitor electrode, and the capacitor wiring.
- a short circuit occurs on at least one side of the source wiring where there is a short circuit. Cut two locations of the source wiring across the area at a position that does not overlap with the gate electrode, gate wiring, capacitor electrode, and capacitor wiring. 4) Adjacent at a position that does not overlap with the gate electrode, gate wiring, capacitor electrode, and capacitor wiring. If there is a short circuit between the matching source wirings, cut the short circuit part. 5) If there is a short circuit between the source wiring and the pixel electrode on the capacitor electrode or capacitor wiring, Cut at a position that does not overlap with the gate electrode, gate wiring, capacitor electrode, and capacitor wiring.
- the drain connection electrode of the thin film transistor having the short circuit does not overlap the gate electrode, the gate wiring, the capacitor electrode, and the capacitor wiring.
- the pixel electrode is cut between the first capacitor and the second capacitor, and 2) when there is a short circuit between adjacent source wirings on the gate electrode or the gate wiring, At least one side of the source wiring that sandwiches the short-circuited portion and the drain connection electrode and source connection electrode of the thin film transistor closest to the short-circuited portion are not overlapped with the gate electrode, the gate wiring, the capacitor electrode, and the capacitor wiring.
- the pixel electrode is cut between the first capacitor and the second capacitor.
- it may further include a step of forming an insulating film.
- it may further include a step of forming an upper pixel electrode.
- Another aspect of the present invention is an image display device in which a display medium is sandwiched between a thin film transistor array manufactured by the above-described method for manufacturing a thin film transistor array and another substrate having a counter electrode.
- the display medium is an electrophoretic body, the position of a pixel from which one of two thin film transistors is removed is stored, and the brightness of the original data of the pixel is corrected. This is a display method of the image display device.
- the display medium may be a liquid crystal, and the pixel position obtained by cutting one of the two thin film transistors may be stored to correct the source voltage at the time of pixel driving.
- a thin film transistor array it is possible to provide a thin film transistor array, a manufacturing method thereof, an image display device, and a display method that are suitable for various short-circuit repairs while suppressing the influence of disconnection, and that can reduce differences in display after repair.
- FIG. 1A is a plan view showing an example of a thin film transistor array according to the first embodiment of the present invention.
- FIG. 1B is a plan view showing an example of a thin film transistor array according to the first embodiment of the present invention.
- FIG. 1C is a plan view showing an example of a thin film transistor array according to the first embodiment of the present invention.
- FIG. 2 is a plan view showing an example of another thin film transistor array according to the first embodiment of the present invention.
- FIG. 3A is a plan view showing an example of a thin film transistor array according to the second embodiment of the present invention.
- FIG. 3B is a plan view showing an example of a thin film transistor array according to the second embodiment of the present invention.
- FIG. 3C is a plan view showing an example of a thin film transistor array according to the second embodiment of the present invention.
- FIG. 4 is a plan view showing an example of another thin film transistor array according to the second embodiment of the present invention.
- FIG. 5A is a plan view showing an example of a repair method of the thin film transistor array according to the first embodiment.
- FIG. 5B is a plan view showing an example of the repair method of the thin film transistor array according to the first embodiment.
- FIG. 5C is a plan view showing an example of the repair method of the thin film transistor array according to the first embodiment.
- FIG. 5D is a plan view illustrating an example of the repair method of the thin film transistor array according to the first embodiment.
- FIG. 6A is a plan view showing an example of a repair method of the thin film transistor array according to the second embodiment.
- FIG. 6B is a plan view showing an example of a repair method of the thin film transistor array according to the second embodiment.
- FIG. 6C is a plan view illustrating an example of a repair method of the thin film transistor array according to the second embodiment.
- FIG. 6D is a plan view illustrating an example of a repair method of the thin film transistor array according to the second embodiment.
- FIG. 7A is a plan view showing an example of a thin film transistor array according to the third embodiment of the present invention.
- FIG. 7B is a plan view showing an example of a thin film transistor array according to the third embodiment of the present invention.
- FIG. 8 is a plan view showing an example of another thin film transistor array according to the third embodiment of the present invention.
- FIG. 9A is a plan view showing an example of a thin film transistor array according to the fourth embodiment of the present invention.
- FIG. 9B is a plan view showing an example of a thin film transistor array according to the fourth embodiment of the present invention.
- FIG. 10 is a plan view showing an example of another thin film transistor array according to the fourth embodiment of the present invention.
- FIG. 11A is a plan view showing an example of a repair method of the thin film transistor array according to the third embodiment.
- FIG. 11B is a plan view illustrating an example of a repair method of the thin film transistor array according to the third embodiment.
- FIG. 11C is a plan view illustrating an example of the repair method of the thin film transistor array according to the third embodiment.
- FIG. 11D is a plan view showing an example of the repair method of the thin film transistor array according to the third embodiment.
- FIG. 12A is a plan view illustrating an example of a repair method of the thin film transistor array according to the fourth embodiment.
- FIG. 12B is a plan view showing an example of the repair method of the thin film transistor array according to the fourth embodiment.
- FIG. 12C is a plan view illustrating an example of the repair method of the thin film transistor array according to the fourth embodiment.
- FIG. 12D is a plan view illustrating an example of the repair method of the thin film transistor array according to the fourth embodiment.
- FIG. 12A is a plan view illustrating an example of a repair method of the thin film transistor array according to the fourth embodiment.
- FIG. 12B is a plan view showing an example of the repair method of the thin film transistor array according to the fourth embodiment.
- FIG. 12C is a
- FIG. 13 is sectional drawing which shows an example of the display apparatus which concerns on the 5th Embodiment of this invention.
- FIG. 14 is a cross-sectional view showing an example of a display device according to the fifth embodiment of the present invention.
- FIG. 15 is a waveform diagram showing the operation of the display device according to the fifth embodiment of the present invention.
- FIG. 16 is a waveform diagram showing an example of the display method of the present invention.
- FIG. 17 is a waveform diagram showing the operation of the display device of the present invention.
- FIG. 18 is a waveform diagram showing an example of the display method of the present invention.
- FIG. 19 is a plan view showing an example of a conventional thin film transistor array.
- FIG. 20 is a plan view showing an example of a conventional thin film transistor array.
- FIGS. 1A to 1C and FIG. 1A to 1C and FIG. 2 have a gate electrode 2 and a gate wiring 2 ′ connected to the gate electrode 2 and a capacitor electrode 10 and a capacitor wiring 10 ′ connected to the capacitor electrode 10 on the insulating substrate 1.
- a source electrode 4 and a drain electrode 5 each having a gate insulating film (not shown) and having a gap in a region overlapping the gate electrode 2 when viewed from above are provided for each pixel, and at least the source electrode 4 and the drain electrode 5 have a semiconductor pattern 6, the two source electrodes 4 are separately connected to two source wirings 4 ′, and the two drain electrodes 5 are two drain connection electrodes.
- the thin film transistor is connected to one pixel electrode 7 through 5 a, the pixel electrode 7 overlaps at least the capacitor electrode 10, and has a protective layer 6 ′ covering at least the semiconductor pattern 6.
- This is an example of a thin film transistor array that has a source connection electrode 4a that connects the two source electrodes 4, and the same drive waveform is applied to the two source lines 4 ′.
- FIG. 1A is a plan view in which a gate electrode 2, a gate wiring 2 ', a capacitor electrode 10, and a capacitor wiring 10' are formed on an insulating substrate 1.
- FIG. 1B after forming a gate insulating film (not shown) thereon, the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed. The top view formed so far is shown.
- the gate electrode 2 and the gate wiring 2 ′ have a common stripe shape
- the capacitor electrode 10 and the capacitor wiring 10 ′ also have a common stripe shape.
- FIG. 1A is a plan view after the semiconductor pattern 6 is formed.
- the semiconductor pattern 6 is formed in a dot shape so as to include the space between the source electrode 4 and the drain electrode 5 on the gate electrode 2 and gate wiring 2 ′.
- FIG. 1B is a plan view after the protective layer 6 ′ is formed.
- the protective layer 6 ′ has a role of protecting the semiconductor pattern 6 from components of the display medium 13 and the insulating film 8 described later.
- the protective layer 6 ′ is formed so as to cover at least the semiconductor pattern 6, and it is desirable that the protective layer 6 ′ has a stripe shape having a uniform width that is continuous over a plurality of TFTs and is parallel to the gate wiring 2 ′ direction. Due to the uniform stripe shape, there is an advantage that there is no influence even if the protective layer 6 ′ is shifted in the left-right direction with respect to the lower source electrode 4, drain electrode 5, and semiconductor pattern 6.
- FIG. 1B, (e2) in FIG. 1B, and (e3) in FIG. 1C are plan views in which an insulating film 8 is further formed. In FIG. 1B (e1), the insulating film 8 has a uniform stripe shape covering the source wiring 4 '.
- the insulating film 8 has a dot shape covering the source wiring 4 '.
- the insulating film 8 has a lattice shape covering the source wiring 4 'and the protective layer 6'.
- the insulating film 8 preferably covers the gate electrode 2 and gate wiring 2 ', and more preferably covers the source connection electrode 4a.
- the insulating film 8 has a role of preventing the voltage from the source wiring 4 ′ and the like from affecting the display.
- an upper pixel electrode 9 may be provided as shown in FIG.
- the upper pixel electrode 9 has an effect of increasing the area ratio (aperture ratio) of the region effective for display in the pixel pitch by making the space width smaller than the width of the protective layer 6 ′ and the width of the insulating film 8. is there.
- the thin film transistor array according to the first embodiment includes the source connection electrode 4a, even if the source wiring 4 ′, the source electrode 4, or the source connection electrode 4a is disconnected, the source voltage is maintained as it is after the disconnection.
- the source electrode 4 can be supplied. For example, when power is supplied to the source wiring 4 ′ in FIG. 5A from the lower side of the drawing to the upper side, even if the left source wiring 4 ′ has the disconnection 21, the right source is just above the disconnection 21.
- the disconnection 21 does not affect. Since the source connection electrode 4a connects the two source electrodes 4, there is no need to separately provide a bridging portion that directly connects the two source wirings 4 ′, and the aperture ratio can be increased. Since one pixel has two TFTs, a disconnection 21 occurs in one drain connection electrode 5a and an on-current cannot flow (FIG. 5A (b)), or the source electrode 4 and the drain electrode 5 are disconnected. Even when the on-current is reduced due to the occurrence of this, the other TFT can perform writing.
- Laser cutting is easy to apply because it easily absorbs light to metal, and difficult to apply because it hardly absorbs light to an insulating film. If the metal electrode is only on the top, the laser is easy to cut because the metal evaporates easily.
- the metal electrode is only on the top, the laser is easy to cut because the metal evaporates easily.
- the metal electrode When there is an insulating film on the metal electrode, light passes through the insulating film and is irradiated to the metal electrode, and can be evaporated from the gap while damaging the insulating film, so that laser cutting is possible.
- laser cutting of the upper metal electrode is possible, but the insulating film may be damaged, and the withstand voltage between the lower metal electrode may be deteriorated.
- the upper metal easily evaporates, it is difficult to connect the upper and lower metals with a laser. Note that since the semiconductor absorbs part of the light, laser cutting is possible.
- the drain connection electrode 5a of the TFT is connected to the gate electrode 2 / gate wiring 2 ′ or the capacitor electrode 10 / capacitor wiring 10 ′. Cut at position 23 where it does not overlap. Thereby, the point defect which arises when a source voltage is directly applied to the pixel electrode 7 can be avoided.
- the pixel electrode 7 is written with another TFT.
- the upper and lower two positions of the source wiring 4 'sandwiching the short circuit point and the short circuit point are the most.
- the drain connection electrode 5a and the source connection electrode 4a of the near transistor are cut at a position 23 that does not overlap the gate electrode 2 / gate wiring 2 ′ and the capacitor electrode 10 / capacitor wiring 10 ′. This cutting may be performed on at least one side of the two shorted source wires 4 '. Thereby, destruction of the source driver and line defects can be avoided.
- the upper and lower two positions of the source wiring 4 'sandwiching the short circuit point are used as the gate electrode 2 as well.
- Cutting is performed at a position 23 that does not overlap the gate wiring 2 ′ and the capacitor electrode 10 / capacitor wiring 10 ′. This cutting may be performed on at least one side of the two shorted source wires 4 '. Thereby, destruction of the source driver and line defects can be avoided.
- Cut position 23 When there is a short circuit 22 between the adjacent source wirings 4 ′ at a position not overlapping with the gate electrode 2 / gate wiring 2 ′ or the capacitor electrode 10 / capacitor wiring 10 ′ ((f) in FIG. 5C), Cut position 23. Thereby, destruction of the source driver and line defects can be avoided.
- the source wiring 4 is the same as (d) of FIG. 5B.
- the drain connection electrode 5a and the source connection electrode 4a can be cut at positions 23 that do not overlap the gate electrode 2 / gate wiring 2 ′ and the capacitor electrode 10 / capacitor wiring 10 ′. Thereby, destruction of a driver and a crosshair defect can be avoided.
- this short circuit cannot always be detected by image inspection.
- the source wiring 4 is the same as (g) of FIG.
- the upper and lower two positions of ' can be cut at a position 23 that does not overlap with the gate electrode 2 / gate wiring 2' and the capacitor electrode 10 / capacitor wiring 10 '. Thereby, destruction of the source driver and line defects can be avoided.
- this short circuit is not always detected by image inspection.
- the source connection electrode 4a has a portion that does not completely overlap with the gate electrode 2 / gate wiring 2 '.
- a portion that does not completely overlap means that it does not overlap at all with the gate electrode 2 and gate wiring 2 ′ in the width direction of a portion of the source connection electrode 4 a.
- the source connection electrode 4a is laser-cut, it is not necessary to irradiate the portion overlapping the gate electrode 2 and gate wiring 2 ', and the withstand voltage between the gate and the source is not lowered.
- the source connection electrode 4a does not have a portion that does not completely overlap with the gate electrode 2 / gate wiring 2 ′ (FIG. 2B), it overlaps with the gate electrode 2 / gate wiring 2 ′.
- the source connection electrode 4a is laser cut, the withstand voltage between the gate and the source may decrease.
- the source connection electrode 4a is on the same side as the drain connection electrode 5a with respect to the gate electrode 2 and gate wiring 2 'in plan view.
- the source connection electrode 4a may be on the opposite side of the drain connection electrode 5a with respect to the gate electrode 2 and gate wiring 2 'in plan view.
- the shape of the source electrode 4 and the drain electrode 5 is not limited to (b) of FIG. 1A, For example, the shape as shown in (c) of FIG. 2 may be sufficient.
- the semiconductor pattern 6 may be an independent dot for each TFT, or may be a single dot connected by two TFTs connected to the same pixel electrode (not shown). In this case, since the area of one print pattern is slightly larger than twice, the film thickness is averaged even when the supply amount of the semiconductor ink is not uniform, and variations can be reduced.
- a gate electrode 2 / gate wiring 2 'and a capacitor electrode 10 / capacitor wiring 10' having a uniform width are formed on the insulating substrate 1 (FIG. 1A (a)).
- the insulating substrate 1 may be a rigid substrate such as a glass substrate, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide (PI), polyetherimide (PEI), polyethersulfone (PES), etc. It may be flexible.
- Examples of the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′ include metals such as Al, Ag, Cu, Cr, Ni, Mo, Au, and Pt, conductive oxides such as ITO, and carbon.
- a conductive polymer or the like can be used.
- ink may be printed and baked, or formed by photolithography, etching, and resist peeling after film formation on the entire surface, or formed by resist printing, etching, and resist peeling after film formation on the entire surface. Also good.
- a gate insulating film (not shown) is formed on the entire surface.
- inorganic materials such as SiO 2 , SiON, and SiN, and organic materials such as polyvinylphenol (PVP) and epoxy can be used.
- PVP polyvinylphenol
- the source electrode 4, the source wiring 4 ', the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed ((b) in FIG. 1A).
- Examples of the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 include metals such as Ag, Cu, Cr, Ni, Mo, Au, Pt, and Al, A conductive oxide such as ITO, carbon, a conductive polymer, or the like can be used.
- As a manufacturing method it may be formed by photolithography, etching, or resist peeling after film formation on the entire surface, but it is desirable to obtain it by printing and baking ink.
- As the printing method screen printing, gravure printing, flexographic printing, offset printing and the like are suitable. In particular, gravure printing, flexographic printing, and offset printing can form a pattern of 20 ⁇ m or less with good reproducibility.
- an image inspection is performed on the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7, and a disconnection or a short-circuit portion is checked by image processing.
- the disconnection of the source wiring 4 ′ is not affected unless the two left and right source wirings 4 ′ are disconnected at the same pixel portion.
- the disconnection of the drain connection electrode 5a if the two drain connection electrodes for driving the same pixel are not disconnected at the same time, the operation is possible although it is 1TFT drive.
- laser cut is performed to cope with short circuit. At least the short-circuit between the source electrode 4 and the drain electrode 5, the short-circuit between the adjacent source lines 4 ′, the short-circuit between the source line 4 ′ and the pixel electrode 7, and the short-circuit between the pixel electrode 7 and the source connection electrode 4a are described above. As described above, laser cutting is performed by the method of (c) in FIG. 5B to (i) of FIG. 5D.
- the inspection process may be performed not only before the semiconductor pattern 6 formation process described later, but also after the semiconductor pattern 6 formation process or after the formation of the protective layer 6 ′.
- the laser cutting step may be after the formation of the semiconductor pattern 6 or after the formation of the protective layer 6 ′ as long as it is after the inspection step. That is, any of the following may be used.
- the semiconductor pattern 6 is formed before, during, or after the inspection process and the laser cutting process ((c) in FIG. 1A).
- Examples of the semiconductor pattern 6 include organic semiconductors such as polythiophene, acene, and allylamine, and oxides such as In 2 O 3 , Ga 2 O 3 , ZnO, SnO 2 , InGaZnO, InGaSnO, and InSnZnO.
- a physical semiconductor can be used.
- As the production method a method of printing and baking the solution by inkjet, dispenser, flexographic printing or the like is suitable.
- a protective layer 6 ' is formed ((d) in FIG. 1B).
- the protective layer 6 ′ covers at least the semiconductor pattern 6, the source electrode 4, and the drain electrode 5, and preferably covers the entire gate electrode 2 and gate wiring 2 ′. Further, when the laser cutting is performed before the protective layer 6 'formation step, it is desirable to further cover the source connection electrode 4a. When the laser cutting is after the protective layer 6 'formation step, the source connection electrode 4a cannot be covered.
- a fluorine resin, a silicone resin, or the like can be used as the protective layer 6 '.
- As the production method a method of printing and baking the solution by inkjet, dispenser, screen printing or the like is suitable.
- the insulating film 8 is formed ((e1) in FIG. 1B, (e2) in FIG. 1B or (e3) in FIG. 1C).
- the protective layer 6 ' also covers the source connection electrode 4a
- the insulating film 8 only needs to cover the source wiring 4'.
- the protective layer 6 ′ does not cover the source connection electrode 4 a
- an organic insulating film such as epoxy is suitable.
- screen printing or gravure offset printing is suitable.
- an upper pixel electrode 9 may be formed ((f) in FIG. 1C). However, this is limited to the case where the source connection electrode 4 a is covered with the protective layer 6 ′ or the insulating film 8. As the upper pixel electrode 9, Ag paste or the like is suitable. As the process, screen printing or gravure offset printing is suitable.
- the gate electrode 2 / gate wiring 2′-capacitor electrode 10 / capacitor wiring 10 ′ are formed between the gate electrode 2 / gate wiring 2 ′ and capacitor electrode 10 / capacitor wiring 10 ′ forming process and the gate insulating film forming process. You may have further the process of inspecting the short circuit between, and the process of laser-cutting this short circuit.
- FIGS. 3A to 3C and FIG. 3A to 3C and FIG. 4 have a gate electrode 2 and a gate wiring 2 ′ connected to the gate electrode 2, a capacitor electrode 10 and a capacitor wiring 10 ′ connected to the gate electrode 2 on the insulating substrate 1, and gate insulation on the gate electrode 2 ′.
- a source electrode 4 and a drain electrode 5 each having a film (not shown) and having a gap in a region overlapping with the gate electrode 2 when viewed from above are provided for each pixel.
- the semiconductor pattern 6 is provided in the gap with the drain electrode 5, the two source electrodes 4 are separately connected to the two source wirings 4 ′, and the two drain electrodes 5 are connected to the two drain connection electrodes 5 a.
- FIG. 3A is a plan view in which the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′ are formed on the insulating substrate 1, and FIG. 3A is a gate insulating film formed thereon.
- a plan view in which a source electrode 4, a source wiring 4 ′, a source connection electrode 4a, a drain electrode 5, a drain connection electrode 5a, and a pixel electrode 7 are formed after a film (not shown) is formed is shown.
- FIG. 3A is a plan view after the semiconductor pattern 6 is formed.
- the semiconductor pattern 6 can be formed in a uniform stripe shape that extends continuously over a plurality of TFTs in a direction parallel to the source wiring 4 ′.
- FIG. 3B (d) is a plan view after the protective layer 6 'is formed.
- the protective layer 6 ′ has a role of protecting the semiconductor pattern 6 from components of the display medium 13 and the insulating film 8 described later.
- the protective layer 6 ′ is formed so as to cover at least the semiconductor pattern 6, and it is desirable that the protective layer 6 ′ has a stripe shape having a uniform width that is continuous over a plurality of TFTs and is parallel to the source wiring 4 ′.
- FIG. 3B are plan views in which an insulating film 8 is further formed.
- the insulating film 8 has a uniform stripe shape covering the source connection wiring 4a, and preferably covers the gate wiring 2 'simultaneously. In this case, there is an advantage that there is no influence even if the insulating film 8 is shifted in the left-right direction in the plan view (direction parallel to the gate wiring 2 ') with respect to the source connection wiring 4a in the lower layer.
- FIG. 1 the insulating film 8 has a uniform stripe shape covering the source connection wiring 4a, and preferably covers the gate wiring 2 'simultaneously.
- the insulating film 8 has a lattice shape covering the source connection wiring 4a and the protective layer 6 ', and more preferably covers the gate wiring 2'.
- the insulating film 8 has a role of preventing the voltage of the source connection wiring 4a and the gate wiring 2 'from affecting the display.
- the upper pixel electrode 9 may be provided.
- the upper pixel electrode 9 has an effect of increasing the area ratio (aperture ratio) of the region effective for display in the pixel pitch by making the space width smaller than the width of the protective layer 6 ′ and the width of the insulating film 8. is there.
- the thin film transistor array according to the second embodiment has the source connection electrode 4a, even if the source wiring 4 ′, the source electrode 4 and the source connection electrode 4a are disconnected, the source voltage is disconnected as it is. It can be supplied to the subsequent source electrode 4.
- the source wiring 4 ′ of FIG. 6A when power is supplied to the source wiring 4 ′ of FIG. 6A from the lower side of the drawing to the upper side, even if the left source wiring 4 ′ has a disconnection 21, the right source wiring is immediately above the disconnection 21. Power is supplied to 4 ′ ⁇ right source electrode 4 ⁇ source connection electrode 4a ⁇ left source electrode 4 ⁇ left source wiring 4 ′, and disconnection 21 does not affect.
- the source connection electrode 4a connects the two source electrodes 4, it is not necessary to separately provide a redundant wiring for directly connecting the two source electrodes 4 ′, and the aperture ratio can be increased. Since one pixel has two TFTs, a disconnection 21 occurs in one drain connection electrode 5a and an on-current cannot flow (FIG. 6A (b)), or a disconnection occurs in the source electrode 4 and the drain electrode 5. Even when the on-current is reduced due to the occurrence of this, the other TFT can perform writing.
- Laser cutting is easy to apply because it easily absorbs light to metal, and difficult to apply because it hardly absorbs light to an insulating film. If the metal electrode is only on the top, the laser is easy to cut because the metal evaporates easily.
- the metal electrode is only on the top, the laser is easy to cut because the metal evaporates easily.
- the metal electrode When there is an insulating film on the metal electrode, light passes through the insulating film and is irradiated to the metal electrode, and can be evaporated from the gap while damaging the insulating film, so that laser cutting is possible.
- laser cutting of the upper metal electrode is possible, but the insulating film may be damaged, and the withstand voltage between the lower metal electrode may be deteriorated.
- the upper metal easily evaporates, it is difficult to connect the upper and lower metals with a laser. Note that since the semiconductor absorbs part of the light, laser cutting is possible.
- the TFT drain connection electrode 5a does not overlap the gate electrode 2 or the capacitor wiring 10 ′. Cut at 23. Thereby, the point defect which arises when a source voltage is directly applied to the pixel electrode 7 can be avoided.
- the pixel electrode 7 is written with another TFT.
- the drain connection of the transistor closest to the short circuit part and the two upper and lower positions of the source line 4' sandwiching the short circuit part The electrode 5a and the source connection electrode 4a are cut at a position 23 that does not overlap the gate electrode 2 or the capacitor wiring 10 ′. This cutting may be performed on at least one side of the two shorted source wires 4 '. Thereby, destruction of the source driver and line defects can be avoided.
- the upper and lower portions 2 of the source line 4 ′ are the same as in FIG. The portion is cut at a position 23 that does not overlap the gate electrode 2 or the capacitor wiring 10 ′. Thereby, destruction of the source driver and line defects can be avoided.
- this short circuit is not always detected by image inspection.
- the source connection electrode 4a has a portion that does not completely overlap with the gate wiring 2 '.
- “a portion that does not completely overlap” means that it does not overlap with the gate wiring 2 ′ at all in the width direction of a portion of the source connection electrode 4 a.
- the source connection electrode 4a is laser-cut, it is not necessary to irradiate the laser with the portion overlapping the gate wiring 2 ', and the withstand voltage between the gate and the source is not lowered.
- the source connection electrode 4a does not have a portion that does not completely overlap with the gate wiring 2 ′ (FIG. 4B)
- a laser is applied to the portion that overlaps with the gate wiring 2 ′.
- the withstand voltage between the gate and the source may decrease.
- the source connection electrode 4a is on the same side as the drain connection electrode 5a with respect to the gate wiring 2 'in plan view.
- the source connection electrode 4a may be on the opposite side of the drain connection electrode 5a with respect to the gate wiring 2 'in plan view.
- the shape of the source electrode 4 and the drain electrode 5 is not limited to (b) of FIG. 3A, For example, the shape as shown in (c) of FIG. 4 may be sufficient.
- the insulating substrate 1 may be a rigid substrate such as a glass substrate, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide (PI), polyetherimide (PEI), polyethersulfone (PES), etc. It may be flexible.
- Examples of the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′ include metals such as Al, Ag, Cu, Cr, Ni, Mo, Au, and Pt, conductive oxides such as ITO, and carbon.
- a conductive polymer or the like can be used.
- ink may be printed and baked, or formed by photolithography, etching, and resist peeling after film formation on the entire surface, or formed by resist printing, etching, and resist peeling after film formation on the entire surface. Also good.
- a gate insulating film (not shown) is formed on the entire surface.
- inorganic materials such as SiO 2 , SiON, and SiN, and organic materials such as polyvinylphenol (PVP) and epoxy can be used.
- PVP polyvinylphenol
- the source electrode 4, the source wiring 4 ', the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed ((b) of FIG. 3A).
- Examples of the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 include metals such as Ag, Cu, Cr, Ni, Mo, Au, Pt, and Al, A conductive oxide such as ITO, carbon, a conductive polymer, or the like can be used.
- As a manufacturing method it may be formed by photolithography, etching, or resist peeling after film formation on the entire surface, but it is desirable to obtain it by printing and baking ink.
- As the printing method screen printing, gravure printing, flexographic printing, offset printing and the like are suitable. In particular, gravure printing, flexographic printing, and offset printing can form a pattern of 20 ⁇ m or less with good reproducibility.
- an image inspection is performed on the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7, and a disconnection or a short-circuit portion is checked by image processing.
- the disconnection of the source wiring 4 ′ is not affected unless the two left and right source wirings 4 ′ are disconnected at the same pixel portion.
- the disconnection of the drain connection electrode 5a if the two drain connection electrodes for driving the same pixel are not disconnected at the same time, the operation is possible although it is 1TFT drive.
- laser cut is performed to cope with short circuit. At least the short-circuit between the source electrode 4 and the drain electrode 5, the short-circuit between the adjacent source lines 4 ′, the short-circuit between the source line 4 ′ and the pixel electrode 7, and the short-circuit between the pixel electrode 7 and the source connection electrode 4a are described above. As described above, laser cutting is performed by the method (c) in FIG. 6B to (i) in FIG. 6D.
- the inspection process may be performed not only before the semiconductor pattern 6 formation process described later, but also after the semiconductor pattern 6 formation process or after the formation of the protective layer 6 ′.
- the laser cutting step may be after the formation of the semiconductor pattern 6 or after the formation of the protective layer 6 ′ as long as it is after the inspection step. That is, any of the following may be used.
- the semiconductor pattern 6 is formed before, during, or after the inspection process and the laser cutting process ((c) of FIG. 3A).
- Examples of the semiconductor pattern 6 include organic semiconductors such as polythiophene, acene, and allylamine, and oxides such as In 2 O 3 , Ga 2 O 3 , ZnO, SnO 2 , InGaZnO, InGaSnO, and InSnZnO.
- a physical semiconductor can be used.
- As the production method a method of printing and baking the solution by inkjet, dispenser, flexographic printing or the like is suitable.
- a protective layer 6 ' is formed ((d) in FIG. 3B).
- the protective layer 6 ' covers at least the semiconductor pattern 6, the source electrode 4, and the drain electrode 5, and preferably also covers the source wiring 4'.
- a fluorine resin, a silicone resin, or the like can be used as the protective layer 6 '.
- a method of printing and baking the solution by inkjet, dispenser, screen printing or the like is suitable.
- the insulating film 8 is formed ((e1) or (e2) in FIG. 3B).
- the protective layer 6 ′ also covers the source wiring 4 ′
- the insulating layer 8 only needs to cover the source connection electrode 4 a, but it is preferable to cover the gate wiring 2 ′.
- the protective layer does not cover the source wiring 4 ′, it is desirable to cover it with the insulating film 8.
- the insulating film 8 an organic insulating film such as epoxy is suitable.
- screen printing or gravure offset printing is suitable.
- an upper pixel electrode 9 may be formed ((f) in FIG. 3C).
- Ag paste or the like is suitable.
- screen printing or gravure offset printing is suitable.
- the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring are formed between the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ forming process and the gate insulating film forming process. You may further have the process of test
- FIG. 7A, FIG. 7B, and FIG. 7A, FIG. 7B, and FIG. 8 have a gate electrode 2 and a gate wiring 2 ′ connected to the gate electrode 2 and a capacitor electrode 10 and a capacitor wiring 10 ′ connected to the capacitor electrode 10 on the insulating substrate 1.
- Each of the source electrode 4 and the drain electrode 5 having a gap in a region overlapping with the gate electrode 2 when viewed from above, and at least the source A semiconductor pattern 6 is provided in the gap between the electrode 4 and the drain electrode 5, the two source electrodes 4 are separately connected to two source wirings 4 ′, and the two drain electrodes 5 are connected to two drain connections.
- a thin film transistor that is connected to one pixel electrode 7 through an electrode 5a has the protective layer 6 ′ that covers at least the semiconductor pattern 6 and that the pixel electrode 7 overlaps at least the capacitor electrode 10.
- a source connection electrode 4 a for connecting the two source electrodes 4 to each other is provided, the same drive waveform is applied to the two source lines 4 ′, and the pixel electrode 7 is connected to the drain electrode 5.
- 2 is an example of a thin film transistor array having a first capacitor that is close and a second capacitor that is far from the drain electrode 5.
- FIG. 7A is a plan view in which the gate electrode 2, the gate wiring 2 ', the capacitor electrode 10, and the capacitor wiring 10' are formed on the insulating substrate 1.
- FIG. 7B after forming a gate insulating film (not shown) thereon, the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed. The top view formed so far is shown.
- the gate electrode 2 and the gate wiring 2 ′ have a common stripe shape.
- the capacitor electrode 10 has a slit 10S parallel to the length direction, and is divided into a first capacitor electrode 10A and a second capacitor electrode 10B by the slit 10S.
- FIG. 7A is a plan view after the semiconductor pattern 6 is formed.
- the semiconductor pattern 6 is formed in a dot shape so as to include the space between the source electrode 4 and the drain electrode 5 on the gate electrode 2 and gate wiring 2 ′.
- FIG. 7B (d) is a plan view after the protective layer 6 'is formed.
- the protective layer 6 ′ has a role of protecting the semiconductor pattern 6 from components of the display medium 13 and the insulating film 8 described later.
- the protective layer 6 ′ is formed so as to cover at least the semiconductor pattern 6, and it is desirable that the protective layer 6 ′ has a stripe shape with a uniform width that extends in parallel to the direction of the gate wiring 2 ′ and extends over a plurality of TFTs. Due to the uniform stripe shape, there is an advantage that there is no influence even if the protective layer 6 ′ is shifted in the left-right direction with respect to the lower source electrode 4, drain electrode 5, and semiconductor pattern 6.
- FIG. 7B is a plan view in which an insulating film 8 is further formed.
- the insulating film 8 has an opening 8H above the first capacitor portion 7A of the pixel electrode 7, and the second capacitor portion 7B of the pixel electrode 7, the source electrode 4, At least the source connection electrode 4a and the source wiring 4 ′ are covered. Further, as shown in (f) of FIG. 7B, the upper pixel electrode 9 is provided. The upper pixel electrode 9 is connected to the first capacitor portion 7 ⁇ / b> A of the pixel electrode 7 through the opening 8 ⁇ / b> H of the insulating film 8.
- the thin film transistor array according to the third embodiment includes the source connection electrode 4a, even if the source wiring 4 ′, the source electrode 4, or the source connection electrode 4a is disconnected, the source voltage is maintained as it is after the disconnection.
- the source electrode 4 can be supplied. For example, when power is supplied to the source wiring 4 ′ in FIG. 11A from the lower side of the drawing to the upper side, even if the left source wiring 4 ′ has a disconnection 21, the right source is just above the disconnection 21.
- the disconnection 21 does not affect. Since the source connection electrode 4a connects the two source electrodes 4, there is no need to separately provide a bridging portion that directly connects the two source wirings 4 ′, and the aperture ratio can be increased.
- the other TFT can perform writing.
- the gate-drain capacitance Cgd is reduced by reducing the number of TFTs to one, but the pixel electrode 7 is not overlapped with the first capacitor electrode 10A or the second capacitor electrode 10B (position overlapped with the slit 10S).
- the second capacitor can be separated to reduce the storage capacitor Cs to only the first capacitor, and the gate feedthrough voltage Vgf can be kept equal.
- the metal electrode is only on the top, the metal is easily evaporated, so laser cutting is easy.
- an insulating film on the metal electrode When there is an insulating film on the metal electrode, light passes through the insulating film and is irradiated to the metal electrode, and can be evaporated from the gap while damaging the insulating film, so that laser cutting is possible.
- laser cutting of the upper metal electrode is possible, but the insulating film may be damaged, and the withstand voltage between the lower metal electrode may be deteriorated.
- the upper metal easily evaporates, it is difficult to connect the upper and lower metals with a laser. Note that since the semiconductor absorbs part of the light, laser cutting is possible.
- the drain connection electrode 5a of the TFT is connected to the gate electrode 2 / gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′.
- the pixel electrode 7 is cut at a position 23 that does not overlap the first capacitor electrode 10A or the second capacitor electrode 10B (position that overlaps the slit 10S).
- the two short lines are located at the top and bottom of the source line 4 'sandwiching the short circuit point.
- the drain connection electrode 5a and the source connection electrode 4a of the near transistor are cut at a position 23 that does not overlap the gate electrode 2 / gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′, and the pixel electrode 7 is cut into the first capacitor electrode. Cutting is performed at a position 23 that does not overlap with 10A or the second capacitor electrode 10B (position that overlaps the slit 10S). This cutting may be performed on at least one side of the two shorted source wires 4 '. Thereby, destruction of the source driver, line defects, and changes in the gate feedthrough voltage can be avoided.
- the source line 4 is the same as (d) of FIG. 11B.
- the upper and lower portions of ', the drain connection electrode 5a, and the source connection electrode 4a are cut at a position 23 that does not overlap the gate electrode 2 / gate wiring 2', the capacitor electrode 10 and the capacitor wiring 10 ', and the pixel electrode 7 is gate electrode It can cut
- this short circuit cannot always be detected by image inspection.
- the source wiring 4 is the same as (g) of FIG. 11C.
- this short circuit is not always detected by image inspection.
- the source connection electrode 4a has a portion that does not completely overlap with the gate electrode 2 / gate wiring 2 '.
- a portion that does not completely overlap means that it does not overlap at all with the gate electrode 2 and gate wiring 2 ′ in the width direction of a portion of the source connection electrode 4 a.
- the source connection electrode 4a is laser-cut, it is not necessary to irradiate the portion overlapping the gate electrode 2 and gate wiring 2 ', and the withstand voltage between the gate and the source is not lowered.
- the source connection electrode 4a does not have a portion that does not completely overlap with the gate electrode 2 / gate wiring 2 ′ (FIG. 8B), a portion that overlaps with the gate electrode 2 / gate wiring 2 ′.
- the source connection electrode 4a is laser cut, the withstand voltage between the gate and the source may decrease.
- the source connection electrode 4a is on the same side as the drain connection electrode 5a with respect to the gate electrode 2 and gate wiring 2 'in plan view.
- the source connection electrode 4a may be on the opposite side of the drain connection electrode 5a with respect to the gate electrode 2 and gate wiring 2 'in plan view.
- the slit 10S of the capacitor electrode 10 may be formed so as to be connected to the capacitor wiring 10 ′, and the entire capacitor electrode 10 and capacitor wiring 10 ′ may be formed in two stripes.
- the shape of the source electrode 4 and the drain electrode 5 is not limited to (b) of FIG. 7A, For example, the shape as shown in (c) of FIG.
- the semiconductor pattern 6 may be an independent dot for each TFT, or may be a single dot connected by 2 TFTs connected to the same pixel electrode.
- the semiconductor pattern 6 may be an independent dot for each TFT, or may be a single dot connected by 2 TFTs connected to the same pixel electrode.
- two semiconductor dots of (c) in FIG. 7A are connected to form two rectangles, or two semiconductor dots shown in (a) to (c) of FIG. 8 are connected to form one rectangle. It may be.
- the area of one print pattern is slightly larger than twice, the film thickness is averaged even when the supply amount of the semiconductor ink is not uniform, and variations can be reduced.
- the insulating substrate 1 may be a rigid substrate such as a glass substrate, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide (PI), polyetherimide (PEI), polyethersulfone (PES), etc. It may be flexible.
- Examples of the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′ include metals such as Al, Ag, Cu, Cr, Ni, Mo, Au, and Pt, conductive oxides such as ITO, and carbon.
- a conductive polymer or the like can be used.
- ink may be printed and baked, or may be formed by photolithography / etching / resist peeling after the entire film formation, or may be formed by resist printing / etching / resist peeling after the entire film formation. .
- a gate insulating film (not shown) is formed on the entire surface.
- inorganic materials such as SiO 2 , SiON, and SiN, and organic materials such as polyvinylphenol (PVP) and epoxy can be used.
- PVP polyvinylphenol
- the source electrode 4, the source wiring 4 ', the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed ((b) of FIG. 7A).
- Examples of the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 include metals such as Ag, Cu, Cr, Ni, Mo, Au, Pt, and Al, A conductive oxide such as ITO, carbon, a conductive polymer, or the like can be used.
- As a manufacturing method it may be formed by photolithography, etching, or resist peeling after film formation on the entire surface, but it is desirable to obtain it by printing and baking ink.
- As the printing method screen printing, gravure printing, flexographic printing, offset printing and the like are suitable. In particular, gravure printing, flexographic printing, and offset printing can form a pattern of 20 ⁇ m or less with good reproducibility.
- an image inspection is performed on the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7, and a disconnection or a short-circuit portion is checked by image processing.
- the disconnection of the source wiring 4 ′ is not affected unless the two left and right source wirings 4 ′ are disconnected at the same pixel portion.
- the disconnection of the drain connection electrode 5a if the two drain connection electrodes for driving the same pixel are not disconnected at the same time, the operation is possible although it is 1TFT drive.
- the laser is cut by the method (b) in FIG. 11A to (i) in FIG. 11D.
- the inspection process may be performed not only before the semiconductor pattern 6 formation process described later, but also after the semiconductor pattern 6 formation process or after the formation of the protective layer 6 ′.
- the laser cutting step may be after the formation of the semiconductor pattern 6 or after the formation of the protective layer 6 ′ as long as it is after the inspection step. That is, any of the following may be used.
- the semiconductor pattern 6 is formed before, during, or after the inspection process and the laser cutting process ((c) of FIG. 7A).
- Examples of the semiconductor pattern 6 include organic semiconductors such as polythiophene, acene, and allylamine, and oxides such as In 2 O 3 , Ga 2 O 3 , ZnO, SnO 2 , InGaZnO, InGaSnO, and InSnZnO.
- a physical semiconductor can be used.
- As the production method a method of printing and baking the solution by inkjet, dispenser, flexographic printing or the like is suitable.
- a protective layer 6 ' is formed ((d) in FIG. 7B).
- the protective layer 6 ′ covers at least the semiconductor pattern 6, the source electrode 4, and the drain electrode 5, and preferably covers the entire gate electrode 2 and gate wiring 2 ′.
- the protective layer 6 ' a fluorine resin, a silicone resin, or the like can be used.
- a method of printing and baking the solution by inkjet, dispenser, screen printing or the like is suitable.
- the insulating film 8 is formed ((e) in FIG. 7B).
- the insulating film 8 has an opening 8H above the first capacitor portion 7A of the pixel electrode 7, and the second capacitor portion 7B of the pixel electrode 7, the source electrode 4, the source connection electrode 4a, and the source wiring. Cover at least 4 ′.
- an organic insulating film such as epoxy is suitable.
- screen printing or gravure offset printing is suitable.
- the upper pixel electrode 9 is formed ((f) in FIG. 7C).
- Ag paste or the like is suitable.
- screen printing or gravure offset printing is suitable.
- the gate electrode 2 / gate wiring 2′-capacitor electrode 10 and capacitor wiring 10 are provided between the gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ forming process and the gate insulating film forming process. It may further include a step of inspecting a short circuit between 'and a step of laser cutting the short circuit.
- FIG. 9A, FIG. 9B, and FIG. 9A, FIG. 9B, and FIG. 10 have a gate electrode 2 and a gate wiring 2 ′ connected thereto and a capacitor electrode 10 and a capacitor wiring 10 ′ connected to the gate electrode 2 on the insulating substrate 1.
- a source electrode 4 and a drain electrode 5 each having a gate insulating film (not shown) and having a gap in a region overlapping the gate electrode 2 when viewed from above are provided for each pixel, and at least the source electrode 4 and the drain electrode 5 have a semiconductor pattern 6, the two source electrodes 4 are separately connected to two source wirings 4 ′, and the two drain electrodes 5 are two drain connection electrodes.
- the thin film transistor is connected to one pixel electrode 7 through 5 a, the pixel electrode 7 overlaps at least the capacitor electrode 10, and has a protective layer 6 ′ covering at least the semiconductor pattern 6.
- the two source electrodes 4 are connected to each other, and the same drive waveform is applied to the two source lines 4 ′ so that the pixel electrode 7 is close to the drain electrode 5.
- 3 is an example of a thin film transistor array having a first capacitor and a second capacitor far from the drain electrode 5.
- FIG. 9A is a plan view in which the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ are formed on the insulating substrate 1.
- 9B after forming a gate insulating film (not shown) thereon, the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed.
- the top view formed so far is shown.
- the capacitor electrode 10 has a slit 10S parallel to its length direction, and is divided into a first capacitor electrode 10A and a second capacitor electrode 10B by the slit 10S.
- FIG. 9A is a plan view after the semiconductor pattern 6 is formed.
- the semiconductor pattern 6 can be formed in a uniform stripe shape that extends continuously over a plurality of TFTs in a direction parallel to the source wiring 4 ′. In this case, there is an advantage that the alignment of the semiconductor pattern 6 is not affected even if it is shifted in the vertical direction (direction parallel to the source wiring 4 ') in the drawing.
- FIG. 9B (d) is a plan view after the protective layer 6 'is formed.
- the protective layer 6 ′ has a role of protecting the semiconductor pattern 6 from components of the display medium 13 and the insulating film 8 described later.
- the protective layer 6 ′ is formed so as to cover at least the semiconductor pattern 6, and it is desirable that the protective layer 6 ′ has a stripe shape having a uniform width that is continuous over a plurality of TFTs and is parallel to the source wiring 4 ′. Due to the uniform stripe shape, there is an advantage that the protective layer 6 ′ is not affected even if it is displaced in the vertical direction with respect to the lower source electrode 4, drain electrode 5 and semiconductor pattern 6.
- FIG. 9B is a plan view in which an insulating film 8 is further formed.
- the insulating film 8 has an opening 8H above the first capacitor portion 7A of the pixel electrode 7, and the second capacitor portion 7B of the pixel electrode 7, the source electrode 4, and the source.
- the connection electrode 4a and the source wiring 4 ′ are at least covered.
- an upper pixel electrode 9 is provided.
- the upper pixel electrode 9 is connected to the first capacitor portion 7 ⁇ / b> A of the pixel electrode 7 through the opening 8 ⁇ / b> H of the insulating film 8.
- the thin film transistor array according to the fourth embodiment includes the source connection electrode 4a, even if the source wiring 4 ′, the source electrode 4, or the source connection electrode 4a is disconnected, the source voltage is maintained as it is after the disconnection.
- the source electrode 4 can be supplied. For example, when power is supplied from the lower side of the drawing to the source wiring 4 ′ in FIG. 12A, even if the left source wiring 4 ′ has a disconnection 21, the right source is just above the disconnection 21. Power is supplied to the wiring 4 ′ ⁇ the right source electrode 4 ⁇ the source connection electrode 4a ⁇ the left source electrode 4 ⁇ the left source wiring 4 ′, and the disconnection 21 does not affect. Since the source connection electrode 4a connects the two source electrodes 4, it is not necessary to separately provide a redundant wiring for directly connecting the two source electrodes 4 ′, and the aperture ratio can be increased.
- the gate-drain capacitance Cgd is reduced by reducing the number of TFTs to one, but the pixel electrode 7 is not overlapped with the first capacitor electrode 10A or the second capacitor electrode 10B (position overlapped with the slit 10S).
- the second capacitor can be separated to reduce the storage capacitor Cs to only the first capacitor, and the gate feedthrough voltage Vgf can be kept equal.
- the metal electrode is only on the top, the metal is easily evaporated, so laser cutting is easy.
- an insulating film on the metal electrode When there is an insulating film on the metal electrode, light passes through the insulating film and is irradiated to the metal electrode, and can be evaporated from the gap while damaging the insulating film, so that laser cutting is possible.
- laser cutting of the upper metal electrode is possible, but the insulating film may be damaged, and the withstand voltage between the lower metal electrode may be deteriorated.
- the upper metal easily evaporates, it is difficult to connect the upper and lower metals with a laser. Note that since the semiconductor absorbs part of the light, laser cutting is possible.
- the influence can be avoided by laser cutting.
- the drain connection electrode 5a of the TFT is connected to the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10
- the pixel electrode 7 is cut at a position 23 that does not overlap with the first capacitor electrode 10A or the second capacitor electrode 10B (position that overlaps the slit 10S).
- the drain connection electrode 5 a and the source connection electrode 4 a are cut at a position 23 that does not overlap the gate electrode 2 and the gate wiring 2 ′ or the capacitor electrode 10 and the capacitor wiring 10 ′, and the pixel electrode 7 does not overlap the gate electrode 10. Cutting can be performed at a position 23 (a position overlapping the slit 10S). Thereby, destruction of a driver and a crosshair defect can be avoided. However, this short circuit cannot always be detected by image inspection.
- the upper and lower portions 2 of the source line 4 ′ are the same as in FIG.
- the location can be cut at a position 23 that does not overlap the gate electrode 2 or the capacitor wiring 10 '. Thereby, destruction of the source driver and line defects can be avoided.
- this short circuit is not always detected by image inspection.
- the source connection electrode 4a has a portion that does not completely overlap with the gate wiring 2 '.
- “a portion that does not completely overlap” means that it does not overlap with the gate wiring 2 ′ at all in the width direction of a portion of the source connection electrode 4 a.
- the source connection electrode 4a is laser-cut, it is not necessary to irradiate the laser with the portion overlapping the gate wiring 2 ', and the withstand voltage between the gate and the source is not lowered.
- the source connection electrode 4a does not have a portion that does not completely overlap the gate wiring 2 ′ (FIG. 10B)
- a laser is applied to the portion that overlaps the gate wiring 2 ′.
- the withstand voltage between the gate and the source may decrease.
- the source connection electrode 4a is on the same side as the drain connection electrode 5a with respect to the gate wiring 2 'in plan view.
- the source connection electrode 4a may be on the side opposite to the drain connection electrode 5a with respect to the gate wiring 2 'in plan view.
- the shape of the source electrode 4 and the drain electrode 5 is not limited to (b) of FIG. 9A, For example, the shape as shown in (c) of FIG. 10 may be sufficient.
- the insulating substrate 1 may be a rigid substrate such as a glass substrate, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyimide (PI), polyetherimide (PEI), polyethersulfone (PES), etc. It may be flexible.
- Examples of the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′ include metals such as Al, Ag, Cu, Cr, Ni, Mo, Au, and Pt, conductive oxides such as ITO, and carbon.
- a conductive polymer or the like can be used.
- ink may be printed and baked, or may be formed by photolithography / etching / resist peeling after the entire film formation, or may be formed by resist printing / etching / resist peeling after the entire film formation. .
- a gate insulating film (not shown) is formed on the entire surface.
- inorganic materials such as SiO 2 , SiON, and SiN, and organic materials such as polyvinylphenol (PVP) and epoxy can be used.
- PVP polyvinylphenol
- the source electrode 4, the source wiring 4 ', the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 are formed ((b) of FIG. 9A).
- Examples of the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7 include metals such as Ag, Cu, Cr, Ni, Mo, Au, Pt, and Al, A conductive oxide such as ITO, carbon, a conductive polymer, or the like can be used.
- As a manufacturing method it may be formed by photolithography, etching, or resist peeling after film formation on the entire surface, but it is desirable to obtain it by printing and baking ink.
- As the printing method screen printing, gravure printing, flexographic printing, offset printing and the like are suitable. In particular, gravure printing, flexographic printing, and offset printing can form a pattern of 20 ⁇ m or less with good reproducibility.
- an image inspection is performed on the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7, and a disconnection or a short-circuit portion is checked by image processing.
- the disconnection of the source wiring 4 ′ is not affected unless the two left and right source wirings 4 ′ are disconnected at the same pixel portion.
- the disconnection of the drain connection electrode 5a if the two drain connection electrodes for driving the same pixel are not disconnected at the same time, the operation is possible although it is 1TFT drive.
- the laser is cut by the method (b) in FIG. 12A to (i) in FIG. 12D.
- the inspection process may be performed not only before the semiconductor pattern 6 formation process described later, but also after the semiconductor pattern 6 formation process or after the formation of the protective layer 6 ′.
- the laser cutting step may be after the formation of the semiconductor pattern 6 or after the formation of the protective layer 6 ′ as long as it is after the inspection step. That is, any of the following may be used.
- the semiconductor pattern 6 is formed before, during, or after the inspection process and the laser cutting process ((c) of FIG. 9A).
- Examples of the semiconductor pattern 6 include organic semiconductors such as polythiophene, acene, and allylamine, and oxides such as In 2 O 3 , Ga 2 O 3 , ZnO, SnO 2 , InGaZnO, InGaSnO, and InSnZnO.
- a physical semiconductor can be used.
- As the production method a method of printing and baking the solution by inkjet, dispenser, flexographic printing or the like is suitable.
- a protective layer 6 ' is formed ((d) in FIG. 9B).
- the protective layer 6 ' covers at least the semiconductor pattern 6, the source electrode 4, and the drain electrode 5, and preferably also covers the source wiring 4'.
- the protective layer 6 ' a fluorine resin, a silicone resin, or the like can be used.
- a method of printing and baking the solution by inkjet, dispenser, screen printing or the like is suitable.
- the insulating film 8 is formed ((e) in FIG. 9B).
- the insulating film 8 has an opening 8H above the first capacitor portion 7A of the pixel electrode 7, and the second capacitor portion 7B of the pixel electrode 7, the source electrode 4, the source connection electrode 4a, and the source wiring. Cover at least 4 ′.
- an organic insulating film such as epoxy is suitable.
- screen printing or gravure offset printing is suitable.
- the upper pixel electrode 9 is formed ((f) in FIG. 9C).
- Ag paste or the like is suitable.
- screen printing or gravure offset printing is suitable.
- the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring are formed between the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ forming process and the gate insulating film forming process. You may further have the process of test
- a reflective image is obtained by sandwiching a display medium 13 between the pixel electrode 7 or the upper pixel electrode 9 of the thin film transistor array of the present invention and a transparent counter electrode 12 provided on a transparent counter substrate 11 separately manufactured.
- a display device can be obtained (FIG. 13).
- the display medium 13 include an electrophoretic body and liquid crystal.
- the electrophoretic body include those in which black and white particles charged in opposite directions are put in a capsule, and those in which charged particles are put in a colored liquid in a partition wall.
- an alignment film (not shown), retardation plate 14 and polarizing plate 15 are generally used, but are not necessary in polymer dispersed liquid crystal (FIG. 14).
- a color filter is used for colorization.
- the counter voltage Vcom equal to the gate feedthrough voltage Vgf
- the voltage Vp-Vcom applied to the display medium becomes as shown in FIG. In FIG. 15, the selection time (the period when the gate voltage Vg when the TFT is turned on is ⁇ ) is shown long so that it can be easily understood. The display is almost determined by the voltage at the non-selection time.
- the TFT is turned on during the period when the gate voltage Vg is +, and the gate feedthrough is negative as shown in FIG. . That is, when paying attention only to the non-selection time, the voltage Vp ⁇ Vcom applied to the display medium is shifted to the positive side by the gate feedthrough difference Vgf / 2.
- Vgf / 2 If the influence of the gate feedthrough voltage Vgf on the display is negligibly small, there is no problem because Vgf / 2 can be ignored. When Vgf / 2 cannot be ignored, it is necessary to correct the difference between 2 TFT pixels and 1 TFT pixels.
- the brightness shifts to either black or white due to a shift of Vgf / 2.
- the non-selected voltage is shifted by ⁇ Vgf / 2 in the case of 1 TFT in FIG. 15 (broken line) compared to the case of 2 TFT (solid line). Therefore, the display color shifts to the white side.
- it is effective to correct the brightness data of the pixel portion processed into one TFT in advance.
- the non-selection voltage is shifted by ⁇ Vgf / 2 as compared with the case of 2 TFT (solid line), so the display color is shifted to the black side.
- ⁇ Vgf / 2 As a simple method for correcting this shift, it is effective to correct chromaticity data of a pixel portion processed into one TFT in advance. For example, when pure black is 00h in hexadecimal and pure white is FFh and the original data is 00h to FFh in hexadecimal, the original data is converted to 00h to EFh, and only 1 TFT portion is + 10h to 10h to FFh. By doing so, the 1 TFT portion can be corrected to the white side.
- the polarity is opposite to that of the p-channel as shown in FIG. 17, but it can be corrected by the same method. That is, in the case of an electrophoretic body that displays black when the pixel potential is +, the non-selected voltage is shifted by + Vgf / 2 in the case of 1 TFT in FIG. 17 (broken line) compared to the case of 2 TFT (solid line). Therefore, the display color is shifted to the black side. As a simple method for correcting this shift, it is effective to correct the brightness data of the pixel portion processed into one TFT in advance.
- the non-selection voltage is shifted by + Vgf / 2 as compared with the case of 2 TFT (solid line), so the display color is shifted to the white side.
- it is effective to correct chromaticity data of a pixel portion processed into one TFT in advance. For example, when pure black is 00h in hexadecimal, pure white is FFh, and the original data is 00h to FFh in hexadecimal, the original data is converted to 10h to FFh, and only the 1 TFT part is changed to -10h to 00h to EFh. By doing so, the 1TFT portion can be corrected to the black side.
- the DC component of the voltage applied to the liquid crystal cannot be reduced to 0 due to the deviation of Vgf / 2, and is liable to deteriorate. Therefore, it is effective to store the pixel position processed into one TFT and shift the source voltage Vs by the timing of driving the pixel position.
- the voltage Vd ⁇ Vcom can be made to have an approximate waveform by shifting the source voltage Vs during pixel driving by + Vgf / 2.
- the polarity is reversed as shown in FIG. 18, but it can be corrected by a similar method.
- the second capacitor is removed when the drain connection electrode 5a is disconnected or laser cut, so that the gate feedthrough voltage Vgf is kept equal and the display is normal. Done.
- Examples 1 to 9 of the present invention will be described with reference to FIGS. 1A to 1C and FIGS. 5A to 5D.
- Example 1 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the source wiring 4 ′ was confirmed. In this case, laser cutting is unnecessary.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 2 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)).
- a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film.
- a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed. In this case, laser cutting is unnecessary, but this pixel position was recorded as 1 TFT.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing of fluorinated resin and baking at 100 ° C. ((d) in FIG. 1B, but the source connection wiring 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 3 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 4 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 5 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 6 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 7 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 8 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 9 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Embodiments 10 to 18 of the present invention will be described with reference to FIGS. 3A to 3C and FIGS. 6A to 6D.
- Example 10 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the source wiring 4 ′ was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 11 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 12 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source wiring 4 ′ and the drain electrode 5 was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (c) of FIG. 6B was performed, and this pixel position was recorded as 1 TFT.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 13 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source wirings 4 ′ was confirmed at the position overlapping the gate electrode 2.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (d) of FIG. 6B was performed, and this pixel position was recorded as 1 TFT.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 14 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the capacitor line 10 ′.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (e) of FIG. 6B was performed.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 15 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at a position not overlapping with the gate electrode 2 or the capacitor line 10 ′.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (f) of FIG. 6C was performed.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 16 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source line 4 ′ and the pixel electrode 7 was confirmed at the position overlapping the capacitor line 10 ′.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (g) of FIG. 6C was performed.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 17 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source wiring 4 ′ and the pixel electrode 7 was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (h) in FIG. 6D was performed.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 18 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the pixel electrode 7 and the source connection electrode 4a was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (i) of FIG. 6D was performed.
- an insulating resin 8 having a stripe shape was formed by screen printing an epoxy resin ((e1) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Examples 19 to 27 of the present invention will be described with reference to FIGS. 1A to 1C and FIGS. 5A to 5D.
- Example 19 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the source wiring 4 ′ was confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A). In the case of disconnection of the source wiring 4 ', laser cutting is unnecessary.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing with an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was not covered with the insulating film 8 because it was already covered with a protective layer. ).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 20 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- this pixel position was recorded as 1 TFT.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing with an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was not covered with the insulating film 8 because it was already covered with a protective layer). ).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 21 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source electrode 4 and the drain electrode 5 was confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cutting of (c) of FIG. 5B was performed, and this pixel position was recorded as 1 TFT.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing of an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 22 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the gate electrode 2 and the gate line 2 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cut of (d) of FIG. 5B was performed, and this pixel position was recorded as 1 TFT.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing of an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 23 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the capacitor electrode 10 and capacitor line 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cutting of (e) of FIG. 5B was performed.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing of an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8). Not)
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 24 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cutting of (f) in FIG. 5C was performed.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the dot-shaped insulating film 8 was formed by screen-printing an epoxy resin ((e2) of FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 25 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source line 4 ′ and the pixel electrode 7 was confirmed at the position overlapping the capacitor electrode 10 and the capacitor line 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cutting of (g) of FIG. 5C was performed.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the dot-shaped insulating film 8 was formed by screen-printing an epoxy resin ((e2) of FIG. 1B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 26 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source wiring 4 ′ and the pixel electrode 7 was confirmed at a position not overlapping with the capacitor electrode 10 and the capacitor wiring 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cutting of (h) in FIG. 5D was performed.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing of an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 27 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the pixel electrode 7 and the source connection electrode 4a was confirmed at a position not overlapping with the capacitor electrode 10 and the capacitor wiring 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the laser cutting of (i) of FIG. 5D was performed.
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a dot-like insulating film 8 was formed by screen printing of an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- an epoxy resin ((e2) in FIG. 1B, but the source connection electrode 4a was already covered with the protective layer 6 ′, so it was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Examples 28 to 36 of the present invention will be described with reference to FIGS. 3A to 3C and FIGS. 6A to 6D.
- Example 28 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 29 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed. In the case of disconnection of the drain connection electrode 5a, laser cutting is unnecessary, but this pixel position was recorded as 1 TFT.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and the image data of brightness 00h to FFh is changed to 10h to FFh for 2 TFT pixels and 00h to EFh for 1 TFT pixels.
- the active matrix drive was performed after conversion so that a display suitable for the brightness of the input data was obtained for the 1 TFT portion.
- Example 30 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (c) in FIG. 6B was performed, and this pixel position was recorded as 1 TFT.
- a lattice-like insulating film 8 was formed by screen printing of an epoxy resin ((e2) in FIG. 3A).
- An electrophoretic material is sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and the image data of brightness 00h to FFh is converted to 10h to FFh for 2 TFT pixels and 00h to EFh for 1 TFT pixel. Then, active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1 TFT portion.
- Example 31 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (d) in FIG. 6B was performed, and this pixel position was recorded as 1 TFT.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 32 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting shown in FIG. 6B (e) was performed.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 33 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (f) in FIG. 6C was performed.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 34 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (g) in FIG. 6C was performed.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 35 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (h) in FIG. 6D was performed.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 36 First, an Al film having a thickness of 50 nm was formed by vapor deposition on the PEN that is the insulating substrate 1, and the gate electrode 2, the gate wiring 2 ′, the capacitor electrode 10, and the capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 3A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 3A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 3A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 3B).
- the laser cutting of (i) of FIG. 6D was performed.
- a lattice-like insulating film 8 was formed by screen printing an epoxy resin ((e2) in FIG. 3B).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Examples 37 to 46 of the present invention will be described with reference to FIGS. 1A to 1C and FIGS. 5A to 5D.
- Example 37 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)).
- a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film.
- a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- laser cutting is unnecessary.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was also covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 38 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- this pixel position was recorded as 1 TFT.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was also covered with the insulating film 8).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 39 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- the laser cut of (c) of FIG. 5B was performed, and this pixel position was recorded as 1 TFT.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was also covered with the insulating film 8).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 40 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- the laser cut of (d) of FIG. 5B was performed, and this pixel position was recorded as 1 TFT.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was covered with the insulating film 8).
- An electrophoretic material (type that turns black when viewed from the counter electrode side when the pixel electrode is +) is sandwiched between the p-channel thin film transistor thus fabricated and a PET substrate having a transparent electrode, and image data of brightness 00h to FFh was converted to 10h to FFh for the 2TFT pixels and 00h to EFh for the 1TFT pixels, and then active matrix driving was performed, and a display suitable for the brightness of the input data was obtained for the 1TFT portion.
- Example 41 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′). Therefore, the laser cutting shown in FIG. 5B (e) was performed.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 42 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, as the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′). Therefore, the laser cutting of (f) in FIG. 5C was performed.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 43 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- the laser cutting of (g) of FIG. 5C was performed.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 44 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- the laser cutting of (h) in FIG. 5D was performed.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 45 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- a stripe-shaped protective layer 6 ′ was formed by screen printing and baking at 100 ° C. for the fluorinated resin ((d) in FIG. 1B, but the source connection electrode 4 a is not covered with the protective layer 6 ′).
- the laser cutting of (i) of FIG. 5D was performed.
- a lattice-like insulating film 8 was formed by screen printing of epoxy resin ((e3) in FIG. 1C, where the source connection electrode 4a was covered with the insulating film 8).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 46 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and a gate electrode 2 / gate wiring 2 ′ and a capacitor electrode 10 / capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 1A ( a)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 1A (b)). Here, the disconnection or the short circuit was inspected by the image inspection apparatus, the laser cutting of FIGS. 5A to 5D was performed, and the pixel position of each 1 TFT was recorded.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 1A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 1B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- a stripe-shaped insulating film 8 was formed by screen printing of an epoxy resin ((e1) in FIG. 1B).
- An alignment film is printed on both the thin film transistor thus manufactured and the counter electrode 12 side of the counter substrate 11 made of PET having the transparent counter electrode 12 and subjected to rubbing treatment. Then, the retardation plate 14 and the polarizing plate 15 were attached to the opposite side of the counter substrate 11 from the counter electrode 12. Then, the driving shown in FIG. 16 was performed, and a desired display with little deterioration was obtained.
- Examples 47 to 55 of the present invention will be described with reference to FIGS. 7A and 7B and FIGS. 11A to 11D.
- Example 47 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the source wiring 4 ′ was confirmed. In this case, laser cutting is unnecessary.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 48 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed. In this case, the pixel electrode 7 was laser-cut as shown in FIG. 11A (b).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection wiring 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 49 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source electrode 4 and the drain electrode 5 was confirmed. Therefore, the laser cutting shown in FIG. 11B (c) was performed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 50 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 51 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the capacitor line 10 ′. Therefore, the laser cutting shown in FIG. 11B (e) was performed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 52 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 53 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 54 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 55 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the fluorinated resin was screen-printed and baked at 100 ° C. to form a stripe-shaped protective layer 6 ′ ((d) in FIG. 7B, but the source connection electrode 4 a was also covered with the protective layer 6 ′).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Examples 56 to 64 of the present invention will be described with reference to FIGS. 9A and 9B and FIGS. 12A to 12D.
- Example 56 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one source line disconnection was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B). In the case of disconnection of the source wiring 4 ', laser cutting is unnecessary.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 57 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the pixel electrode 7 was laser-cut as shown in FIG. 12A (b).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 58 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source wiring 4 ′ and the drain electrode 5 was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (c) of FIG. 12B was performed, and this pixel position was recorded as 1 TFT.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 59 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source wirings 4 ′ was confirmed at the position overlapping the gate electrode 2.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (d) of FIG. 12B was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 60 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the capacitor line 10 ′.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (e) of FIG. 12B was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 61 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at a position not overlapping with the gate electrode 2 or the capacitor line 10 ′.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (f) of FIG. 12C was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 62 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source line 4 ′ and the pixel electrode 7 was confirmed at the position overlapping the capacitor line 10 ′.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (g) of FIG. 12C was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 63 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source electrode 4 and the pixel electrode 7 was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (h) in FIG. 12D was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 64 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the pixel electrode 7 and the source connection electrode 4a was confirmed.
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (i) of FIG. 12D was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Examples 65 to 73 of the present invention will be described with reference to FIGS. 7A and 7B and FIGS. 11A to 11D.
- Example 65 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C.
- the source electrode 4 As the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the source wiring 4 ′ was confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 66 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one disconnection of the drain connection electrode 5a was confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the pixel electrode 7 was laser-cut as shown in FIG.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 67 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source electrode 4 and the drain electrode 5 was confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (c) of FIG. 11B was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 68 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the gate electrode 2 and the gate line 2 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (d) of FIG. 11B was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 69 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the adjacent source lines 4 ′ was confirmed at the position overlapping the capacitor line 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (e) of FIG. 11B was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 70 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)).
- one short circuit between the adjacent source wirings 4 ′ is performed at a position that does not overlap the gate electrode 2 / gate wiring 2 ′, the capacitor electrode 10 and the capacitor wiring 10 ′. confirmed.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (f) of FIG. 11C was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 71 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source line 4 ′ and the pixel electrode 7 was confirmed at the position overlapping the capacitor electrode 10 and the capacitor line 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (g) of FIG. 11C was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 72 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the source line 4 ′ and the pixel electrode 7 was confirmed at a position not overlapping the capacitor electrode 10 and the capacitor line 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (h) of FIG. 11D was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 73 First, an Al film having a thickness of 50 nm was formed on PEN, which is an insulating substrate 1, and gate electrode 2 / gate wiring 2 ′, capacitor electrode 10 and capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 7A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and firing at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 7A (b)). Here, when the disconnection or the short circuit was inspected by the image inspection apparatus, one short circuit between the pixel electrode 7 and the source connection electrode 4a was confirmed at a position not overlapping with the capacitor electrode 10 and the capacitor wiring 10 ′.
- the polythiophene solution was flexographically printed and baked at 100 ° C. to form a dot-like semiconductor pattern 6 ((c) in FIG. 7A).
- the laser cutting of (i) of FIG. 11D was performed.
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 7B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Examples 74 to 82 of the present invention will be described with reference to FIGS. 9A and 9B and FIGS. 12A to 12D.
- Example 74 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)).
- a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film.
- a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 7B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 7B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 75 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the pixel electrode 7 was laser-cut as shown in FIG. 12A (b).
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 76 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting shown in FIG. 12B (c) was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 77 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (d) in FIG. 12B was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 78 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting shown in FIG. 12B (e) was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 79 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (f) in FIG. 12C was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 80 First, an Al film having a thickness of 50 nm is formed on the PEN that is the insulating substrate 1 by vapor deposition, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ are formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, as the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (g) in FIG. 12C was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 81 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, as the source electrode 4, the source wiring 4 ′, the source connection electrode 4a, the drain electrode 5, the drain connection electrode 5a, and the pixel electrode 7, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (h) in FIG. 12D was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Example 82 First, an Al film having a thickness of 50 nm was formed on the PEN that is the insulating substrate 1, and a gate electrode 2, a gate wiring 2 ′, a capacitor electrode 10, and a capacitor wiring 10 ′ were formed by photolithography and wet etching (FIG. 9A). (A)). Next, a polyvinylphenol solution was spin-coated and baked at 150 ° C. to form 1 ⁇ m of polyvinylphenol as a gate insulating film. Further, a pattern was formed by offset printing of Ag ink and baking at 180 ° C. as the source electrode 4, the source wiring 4 ′, the source connection electrode 4 a, the drain electrode 5, the drain connection electrode 5 a, and the pixel electrode 7 (FIG. 9A (b)).
- a stripe-shaped semiconductor pattern 6 was formed by flexographic printing of the polythiophene solution and baking at 100 ° C. ((c) of FIG. 9A).
- the stripe-shaped protective layer 6 ′ was formed by screen printing the fluorinated resin and baking at 100 ° C. ((d) in FIG. 9B).
- the laser cutting of (i) of FIG. 12D was performed.
- the insulating film 8 was formed by screen printing of epoxy resin (FIG. 9B (e)), and the upper pixel electrode 9 was formed by screen printing of Ag paste (FIG. 9B (f)).
- An electrophoretic body was sandwiched between the thin film transistor thus fabricated and a PET substrate having a transparent electrode, and active matrix driving was performed, and a display suitable for the brightness of the input data was obtained.
- Comparative Example 2 A comparative example of the present invention will be described.
- the black lightness L * was about 5 and the white lightness L * was about 2 high for one TFT portion. This is not a concern with black and white binary display, but it becomes a problem with gradation display.
- the present invention has the following effects. First, it was possible to provide a thin film transistor array, a manufacturing method thereof, an image display device, and a display method that are suitable for repairing various short circuits while suppressing the influence of disconnection. In addition, a thin film transistor array, a manufacturing method thereof, an image display device, and a display method that can reduce a difference in display after repair can be provided.
- the present invention can be applied to a thin film transistor array used for an electrophoretic display, a liquid crystal display or the like.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Thin Film Transistor (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Manufacturing & Machinery (AREA)
Abstract
Description
本発明の第1の実施形態に係る薄膜トランジスタアレイの一例を、図1A~C及び図2に示す。図1A~図1C及び図2は、絶縁基板1の上に、ゲート電極2とそれに接続されたゲート配線2’、及びキャパシタ電極10とそれに接続されたキャパシタ配線10’を有し、その上にゲート絶縁膜(図示せず)を有し、その上に上から見てゲート電極2と重なる領域に間隙を有するソース電極4及びドレイン電極5を1画素ごとに2組有し、少なくとも該ソース電極4とドレイン電極5との間隙に半導体パターン6を有し、該2つのソース電極4は2本のソース配線4’に別々に接続されており、該2つのドレイン電極5は2つのドレイン接続電極5aを介して1つの画素電極7に接続されており、該画素電極7が少なくとも該キャパシタ電極10と重なっており、少なくとも半導体パターン6を覆う保護層6’を有する薄膜トランジスタであって、該2つのソース電極4同士を接続するソース接続電極4aを有しており、該2本のソース配線4’には同一の駆動波形が印加される、薄膜トランジスタアレイの一例である。
例えば、図5Aの(a)のソース配線4’に紙面の下方から上方へ給電している場合、左のソース配線4’に断線21があっても、断線21のすぐ上にて右のソース配線4’→右のソース電極4→ソース接続電極4a→左のソース電極4→左のソース配線4’に給電され、断線21は影響しない。ソース接続電極4aが2つのソース電極4間を接続しているので、2本のソース配線4’間を直接つなぐ架橋部を別途設ける必要がなく、開口率を大きくすることができる。
また、1画素に2つのTFTを有するので、一方のドレイン接続電極5aに断線21が発生してオン電流を流せない場合(図5Aの(b))や、ソース電極4やドレイン電極5に断線が発生してオン電流が小さくなった場合にも、もう一方のTFTが書込みを行える。
1)検査→レーザカット→半導体→保護層
2)検査→半導体→レーザカット→保護層
3)検査→半導体→保護層→レーザカット
4)半導体→検査→レーザカット→保護層
5)半導体→検査→保護層→レーザカット
6)半導体→保護層→検査→レーザカット
ただし、通常は半導体パターン6形成後に速やかに保護層6’を形成したいので、1)3)6)のいずれかが望ましい。また、レーザカット後に保護層6’を設ける1)2)4)では、ソース接続電極4aも保護層6’で覆うことができる利点がある。さらに、半導体パターン6のムラが多い等の理由で検査しにくい場合には、1)2)3)のいずれかが望ましい。
本発明の第2の実施形態に係る薄膜トランジスタアレイの一例を、図3A~C及び図4に示す。図3A~C及び図4は、絶縁基板1の上に、ゲート電極2とそれに接続されたゲート配線2’、キャパシタ電極10とそれに接続されたキャパシタ配線10’を有し、その上にゲート絶縁膜(図示せず)を有し、その上に上から見てゲート電極2と重なる領域に間隙を有するソース電極4及びドレイン電極5を1画素ごとに2組有し、少なくとも該ソース電極4とドレイン電極5との間隙に半導体パターン6を有し、該2つのソース電極4は2本のソース配線4’に別々に接続されており、該2つのドレイン電極5は2つのドレイン接続電極5aを介して1つの画素電極7に接続されており、該画素電極7が少なくとも該キャパシタ電極10と重なっており、少なくとも半導体パターン6を覆う保護層6’を有する薄膜トランジスタであって、該2つのソース電極4同士を接続するソース接続電極4aを有しており、該2本のソース配線4’には同一の駆動波形が印加される、薄膜トランジスタアレイの一例である。
例えば図6Aの(a)のソース配線4’に紙面の下方から上方へ給電している場合、左のソース配線4’に断線21があっても、断線21のすぐ上にて右のソース配線4’→右のソース電極4→ソース接続電極4a→左のソース電極4→左のソース配線4’に給電され、断線21は影響しない。ソース接続電極4aが2つのソース電極4間を接続しているので、2本のソース電極4’間を直接つなぐ冗長配線を別途設ける必要がなく、開口率を大きくすることができる。
また、1画素に2つのTFTを有するので、一方のドレイン接続電極5aに断線21が発生してオン電流を流せない場合(図6Aの(b))や、ソース電極4やドレイン電極5に断線が発生してオン電流が小さくなった場合にも、もう一方のTFTが書込みを行える。
1)検査→レーザカット→半導体→保護層
2)検査→半導体→レーザカット→保護層
3)検査→半導体→保護層→レーザカット
4)半導体→検査→レーザカット→保護層
5)半導体→検査→保護層→レーザカット
6)半導体→保護層→検査→レーザカット
ただし、通常は半導体パターン6の形成後に速やかに保護層6’を形成したいので、1)3)6)のいずれかが望ましい。半導体パターン6にムラが多い等の理由で検査しにくい場合には、1)2)3)のいずれかが望ましい。
本発明の第3の実施形態に係る薄膜トランジスタアレイの一例を、図7A、図7B、及び図8に示す。図7A、図7B、及び図8は、絶縁基板1の上に、ゲート電極2とそれに接続されたゲート配線2’、及びキャパシタ電極10とそれに接続されたキャパシタ配線10’を有し、その上にゲート絶縁膜(図示せず)を有し、その上に上から見てゲート電極2と重なる領域に間隙を有するソース電極4及びドレイン電極5を1画素ごとに2組有し、少なくとも該ソース電極4とドレイン電極5との間隙に半導体パターン6を有し、該2つのソース電極4は2本のソース配線4’に別々に接続されており、該2つのドレイン電極5は2つのドレイン接続電極5aを介して1つの画素電極7に接続されており、該画素電極7が少なくとも該キャパシタ電極10と重なっており、少なくとも半導体パターン6を覆う保護層6’を有する薄膜トランジスタであって、該2つのソース電極4同士を接続するソース接続電極4aを有しており、該2本のソース配線4’には同一の駆動波形が印加され、画素電極7が、ドレイン電極5に近い第1キャパシタと、ドレイン電極5から遠い第2キャパシタを有する、薄膜トランジスタアレイの一例である。
例えば、図11Aの(a)のソース配線4’に紙面の下方から上方へ給電している場合、左のソース配線4’に断線21があっても、断線21のすぐ上にて右のソース配線4’→右のソース電極4→ソース接続電極4a→左のソース電極4→左のソース配線4’に給電され、断線21は影響しない。ソース接続電極4aが2つのソース電極4間を接続しているので、2本のソース配線4’間を直接つなぐ架橋部を別途設ける必要がなく、開口率を大きくすることができる。
1)検査→レーザカット→半導体→保護層
2)検査→半導体→レーザカット→保護層
3)検査→半導体→保護層→レーザカット
4)半導体→検査→レーザカット→保護層
5)半導体→検査→保護層→レーザカット
6)半導体→保護層→検査→レーザカット
ただし、通常は半導体パターン6の形成後に速やかに保護層6’を形成したいので、1)3)6)のいずれかが望ましい。また、半導体パターン6のムラが多い等の理由で検査しにくい場合には、1)2)3)のいずれかが望ましい。
本発明の第4の実施形態に係る薄膜トランジスタアレイの一例を、図9A、図9B、及び図10に示す。図9A、図9B、及び図10は、絶縁基板1の上に、ゲート電極2とそれに接続されたゲート配線2’、キャパシタ電極10とそれに接続されたキャパシタ配線10’を有し、その上にゲート絶縁膜(図示せず)を有し、その上に上から見てゲート電極2と重なる領域に間隙を有するソース電極4及びドレイン電極5を1画素ごとに2組有し、少なくとも該ソース電極4とドレイン電極5との間隙に半導体パターン6を有し、該2つのソース電極4は2本のソース配線4’に別々に接続されており、該2つのドレイン電極5は2つのドレイン接続電極5aを介して1つの画素電極7に接続されており、該画素電極7が少なくとも該キャパシタ電極10と重なっており、少なくとも半導体パターン6を覆う保護層6’を有する薄膜トランジスタであって、該2つのソース電極4同士を接続するソース接続電極4aを有しており、該2本のソース配線4’には同一の駆動波形が印加され、画素電極7が、ドレイン電極5に近い第1キャパシタと、ドレイン電極5から遠い第2キャパシタを有する、薄膜トランジスタアレイの一例である。
例えば、図12Aの(a)のソース配線4’に紙面の下方から上方へ給電している場合、左のソース配線4’に断線21があっても、断線21のすぐ上にて右のソース配線4’→右のソース電極4→ソース接続電極4a→左のソース電極4→左のソース配線4’に給電され、断線21は影響しない。ソース接続電極4aが2つのソース電極4間を接続しているので、2本のソース電極4’間を直接つなぐ冗長配線を別途設ける必要がなく、開口率を大きくすることができる。
1)検査→レーザカット→半導体→保護層
2)検査→半導体→レーザカット→保護層
3)検査→半導体→保護層→レーザカット
4)半導体→検査→レーザカット→保護層
5)半導体→検査→保護層→レーザカット
6)半導体→保護層→検査→レーザカット
ただし、通常は半導体パターン6の形成後に速やかに保護層6’を形成したいので、1)3)6)のいずれかが望ましい。半導体パターン6にムラが多い等の理由で検査しにくい場合には、1)2)3)のいずれかが望ましい。
本発明の薄膜トランジスタアレイを用いた画像表示装置について説明する。
本発明の薄膜トランジスタアレイの画素電極7又は上部画素電極9と、別途作製した透明な対向基板11上に付けた透明な対向電極12との間に、表示媒体13を挟むことにより、反射型の画像表示装置とすることができる(図13)。表示媒体13としては、電気泳動体や液晶等が挙げられる。電気泳動体としては、逆方向に帯電した黒・白粒子をカプセルに入れたものや、隔壁内の着色液中に帯電粒子を入れたもの等がある。液晶の場合は、さらに配向膜(図示せず)や位相差板14や偏光板15を用いるのが一般的であるが、ポリマー分散液晶では不要である(図14)。また、カラー化にはカラーフィルタを用いる。
次に、ゲートフィードスルー電圧の影響について説明する。
まず、pチャネルの場合を図15に示す。2つのTFTで駆動する画素において、ゲート電圧Vg、ソース電圧Vsとして図15に示す波形を与えた場合、画素電位Vpは図15の実線のようになる。ゲート電圧Vgがオン→オフになる時に画素電位がずれる分がゲートフィードスルー電圧Vgfである。ゲートフィードスルー電圧Vgfは、薄膜トランジスタのゲート-ドレイン間容量Cgd、蓄積容量Cs、表示媒体の容量Cp、ゲート電圧のオン→オフ変化量をΔVgとすると、Vgf=ΔVg×Cgd/(Cgd+Cs+Cp)で与えられる。通常は、Cgd<<Cs+Cpである。対向電圧Vcomをゲートフィードスルー電圧Vgfと等しくすることにより、表示媒体にかかる電圧Vp-Vcomが図15のようになり、オン時のソース電圧Vsをほぼ反映した電位になる。なお、図15では、選択時間(TFTがオンになるゲート電圧Vgが-の期間)をわかりやすいように長く記載しているが、実際にはごく短時間であり、非選択時間の割合が大きい。表示は、非選択時間での電圧でほぼ決定される。
(実施例1)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’の断線が1箇所確認された。この場合、レーザカットは不要である。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ドレイン接続電極5aの断線が1箇所確認された。この場合、レーザカットは不要であるが、この画素位置を1TFTとして記録した。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース電極4-ドレイン電極5間の短絡が1箇所確認された。そこで、図5Bの(c)のレーザカットを行い、この画素位置を1TFTとして記録した。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。そこで、図5Bの(d)のレーザカットを行い、この画素位置を1TFTとして記録した。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。そこで、図5Bの(e)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’やキャパシタ電極10兼キャパシタ配線10’と重ならない位置で、隣り合うソース配線4’間の短絡が1箇所確認された。そこで、図5Cの(f)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重なった位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。そこで、図5Cの(g)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重ならない位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。そこで、図5Dの(h)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重ならない位置で、画素電極7-ソース接続電極4a間の短絡が1箇所確認された。そこで、図5Dの(i)のレーザカットを行った。
(実施例10)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’の断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ドレイン接続電極5aの断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’-ドレイン電極5間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ配線10’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2やキャパシタ配線10’と重ならない位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ配線10’と重なった位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、画素電極7-ソース接続電極4a間の短絡が1箇所確認された。
(実施例19)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’の断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ドレイン接続電極5aの断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース電極4-ドレイン電極5間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’やキャパシタ電極10兼キャパシタ配線10’と重ならない位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重なった位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重ならない位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10兼キャパシタ配線10’と重ならない位置で、画素電極7-ソース接続電極4a間の短絡が1箇所確認された。
(実施例28)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図3Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図3Aの(b))。
(実施例37)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a及び、画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノール
を1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’及びキャパシタ電極10兼キャパシタ配線10’を形成した(図1Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図1Aの(b))。ここで、画像検査装置によって断線や短絡を検査し、図5A~Dのレーザカットを行い、各1TFTの画素位置を記録した。
(実施例47)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’の断線が1箇所確認された。この場合、レーザカットは不要である。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ドレイン接続電極5aの断線が1箇所確認された。この場合、図11Aの(b)のように画素電極7をレーザカットした。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース電極4-ドレイン電極5間の短絡が1箇所確認された。そこで、図11Bの(c)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。そこで、図11Bの(d)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ配線10’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。そこで、図11Bの(e)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’やキャパシタ電極10及びキャパシタ配線10’と重ならない位置で、隣り合うソース配線4’間の短絡が1箇所確認された。そこで、図11Cの(f)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10及びキャパシタ配線10’と重なった位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。そこで、図11Cの(g)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10及びキャパシタ配線10’と重ならない位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。そこで、図11Dの(h)のレーザカットを行った。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10及びキャパシタ配線10’と重ならない位置で、画素電極7-ソース接続電極4a間の短絡が1箇所確認された。そこで、図11Dの(i)のレーザカットを行った。
(実施例56)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線の断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ドレイン接続電極5aの断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’-ドレイン電極5間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ配線10’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2やキャパシタ配線10’と重ならない位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ配線10’と重なった位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース電極4-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、画素電極7-ソース接続電極4a間の短絡が1箇所確認された。
(実施例65)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース配線4’の断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ドレイン接続電極5aの断線が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ソース電極4-ドレイン電極5間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ配線10’と重なった位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、ゲート電極2兼ゲート配線2’やキャパシタ電極10及びキャパシタ配線10’と重ならない位置で、隣り合うソース配線4’間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10及びキャパシタ配線10’と重なった位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10及びキャパシタ配線10’と重ならない位置で、ソース配線4’-画素電極7間の短絡が1箇所確認された。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2兼ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図7Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図7Aの(b))。ここで、画像検査装置によって断線や短絡を検査したところ、キャパシタ電極10及びキャパシタ配線10’と重ならない位置で、画素電極7-ソース接続電極4a間の短絡が1箇所確認された。
(実施例74)
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及び・キャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び・画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び・画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
まず、絶縁基板1であるPEN上に、蒸着によってAlを50nm成膜し、フォトリソ及びウェットエッチによってゲート電極2、ゲート配線2’、キャパシタ電極10、及びキャパシタ配線10’を形成した(図9Aの(a))。次に、ポリビニルフェノール溶液をスピンコートし、150℃焼成することにより、ゲート絶縁膜としてポリビニルフェノールを1μm形成した。さらに、ソース電極4、ソース配線4’、ソース接続電極4a、ドレイン電極5、ドレイン接続電極5a、及び画素電極7として、Agインクをオフセット印刷し180℃で焼成することによってパターンを形成した(図9Aの(b))。
実施例46のパネルを、図16の駆動でなく、1TFTを考慮しない従来の駆動を行ったところ、画素において色変化がしにくくなる劣化がみられた。
本発明の比較例について、説明する。実施例1~9のようにして作製したパネルを、画像データの補正なしでアクティブマトリクス駆動したところ、1TFT部分について、黒の明度L*が5程度、白の明度L*が2程度高かった。白黒2値表示ではあまり気にならないが、階調表示では問題になる。
2 ゲート電極
2’ ゲート配線
4 ソース電極
4’ ソース配線
4a ソース接続電極
5 ドレイン電極
5a ドレイン接続電極
6 半導体パターン
6’ 保護層
7 画素電極
7A 第1キャパシタ部分
7B 第2キャパシタ部分
8 絶縁膜
8H 開口部
9 上部画素電極
10 キャパシタ電極
10A 第1のキャパシタ電極
10B 第2のキャパシタ電極
10’ キャパシタ配線
10’A 第1のキャパシタ配線
10’B 第2のキャパシタ配線
11 対向基板
12 対向電極
13 表示媒体
14 位相差板
15 偏光板
21 断線部
22 短絡部
23 位置(レーザカット部)
31 架橋部
32 レーザ接続部
Claims (18)
- ゲート電極、当該ゲート電極に接続されたゲート配線、キャパシタ電極、及び当該キャパシタ電極に接続されたキャパシタ配線が形成された絶縁基板上の当該ゲート電極と重なる領域に、ゲート絶縁膜を介して、半導体パターンを含む間隙を有するソース電極及びドレイン電極が形成され、当該半導体パターンが保護層によって覆われた構成の薄膜トランジスタを有し、当該薄膜トランジスタが1画素ごとに2つ独立して形成され、各画素における2つのソース電極は2本のソース配線に別々に接続され、2つのドレイン電極は個別のドレイン接続電極を介して当該各画素の電極に接続されてなる、薄膜トランジスタアレイであって、
1画素ごとに形成される前記2つの薄膜トランジスタのソース電極同士を接続するソース接続電極を有し、
前記2本のソース配線には同一の駆動波形が印加される、薄膜トランジスタアレイ。 - 前記ソース接続電極は、ゲート電極及びゲート配線と重ならない部分を少なくとも有している、請求項1に記載の薄膜トランジスタアレイ。
- 前記保護層は、前記ゲート配線に沿ったストライプ形状であり、前記半導体パターンだけでなく前記ゲート配線をも覆っている、請求項1又は2に記載の薄膜トランジスタアレイ。
- 少なくとも前記ソース配線を覆う絶縁膜をさらに有する、請求項3に記載の薄膜トランジスタアレイ。
- 前記保護層は、前記ソース配線に沿ったストライプ形状であり、前記半導体パターンだけでなく前記ソース配線をも覆っている、請求項1又は2に記載の薄膜トランジスタアレイ。
- 少なくとも前記ソース接続電極及び前記ゲート配線を覆う絶縁膜をさらに有する、請求項5に記載の薄膜トランジスタアレイ。
- 前記画素電極が、前記ドレイン電極に近い第1キャパシタと、前記ドレイン電極から遠い第2キャパシタとを有する、請求項1に記載の薄膜トランジスタアレイ。
- 前記キャパシタ電極は、少なくとも前記画素電極と重なる領域にスリットを有し、当該スリットによってドレイン電極に近い側の第1キャパシタ電極とドレイン電極から遠い側の第2キャパシタ電極とに分かれており、
前記第1キャパシタが、画素電極/ゲート絶縁膜/第1キャパシタ電極からなり、前記第2キャパシタが、画素電極/ゲート絶縁膜/第2キャパシタ電極からなる、請求項7に記載の薄膜トランジスタアレイ。 - 前記画素電極のうちの前記第1キャパシタ部分の上に開口部を有し、前記画素電極のうちの第2キャパシタ部分、ソース電極、ソース接続電極、及びソース配線を少なくとも覆う絶縁膜と、
前記絶縁膜の上に、前記開口部を介して前記画素電極に接続された上部画素電極とをさらに有する、請求項7又は8に記載の薄膜トランジスタアレイ。 - 請求項1~9のいずれか1項に記載の薄膜トランジスタアレイを製造する方法であって、
絶縁基板上に、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線を形成する工程と、
前記ゲート電極、前記ゲート配線、前記キャパシタ電極、及び前記キャパシタ配線の上に、ゲート絶縁膜を形成する工程と、
前記ゲート絶縁膜の上に、ソース電極、ソース配線、ソース接続電極、ドレイン電極、ドレイン接続電極、及び画素電極を形成する工程と、
前記ソース電極、前記ソース配線、前記ソース接続電極、前記ドレイン電極、前記ドレイン接続電極、及び前記画素電極の断線や短絡を検査する工程と、
前記検査の結果に応じて、前記短絡箇所、前記ソース配線、前記ソース接続電極、及び前記ドレイン接続電極の少なくとも1つをレーザカットする工程と、
半導体を形成する工程と、
前記半導体を保護する保護層を形成する工程とを含み、
前記レーザカットする工程は、前記検査する工程以後に行われる、薄膜トランジスタアレイの製造方法。 - 前記断線や短絡を検査する工程が、画像検査である、請求項10に記載の薄膜トランジスタアレイの製造方法。
- 前記レーザカットする工程では、
1)ソース電極とドレイン電極との間に短絡がある場合、短絡がある薄膜トランジスタのドレイン接続電極を、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、
2)ゲート電極又はゲート配線上で隣り合うソース配線間に短絡がある場合、短絡があるソース配線の少なくとも一方側において、短絡箇所を挟むソース配線の2箇所と、短絡箇所に最も近い薄膜トランジスタのドレイン接続電極及びソース接続電極とを、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、
3)キャパシタ電極又はキャパシタ配線上で隣り合うソース配線間に短絡がある場合、短絡があるソース配線の少なくとも一方側において、短絡箇所を挟むソース配線の2箇所を、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、
4)ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置で隣り合うソース配線間に短絡がある場合、短絡箇所をカットし、
5)キャパシタ電極又はキャパシタ配線上でソース配線と画素電極との間に短絡がある場合、短絡箇所を挟むソース配線の2箇所を、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、
6)ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でソース配線又はソース電極と画素電極との間に短絡がある場合、短絡箇所をカットし、
7)画素電極とソース接続電極との間に短絡がある場合、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置で短絡箇所をカットする、
請求項10又は11に記載の薄膜トランジスタアレイの製造方法。 - 前記レーザカットする工程では、
1)ソース電極とドレイン電極との間に短絡がある場合、短絡がある薄膜トランジスタのドレイン接続電極を、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、かつ、画素電極を、第1キャパシタと第2キャパシタとの間でカットし、
2)ゲート電極又はゲート配線上で隣り合うソース配線間に短絡がある場合、短絡があるソース配線の少なくとも一方側において、短絡箇所を挟むソース配線の2箇所と、短絡箇所に最も近い薄膜トランジスタのドレイン接続電極及びソース接続電極とを、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、かつ、画素電極を、第1キャパシタと第2キャパシタとの間でカットし、
3)キャパシタ電極又はキャパシタ配線上で隣り合うソース配線間に短絡がある場合、短絡があるソース配線の少なくとも一方側において、短絡箇所を挟むソース配線の2箇所を、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、
4)ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置で隣り合うソース配線間に短絡がある場合、短絡箇所をカットし、
5)キャパシタ電極又はキャパシタ配線上でソース配線と画素電極との間に短絡がある場合、短絡箇所を挟むソース配線の2箇所を、ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でカットし、
6)ゲート電極、ゲート配線、キャパシタ電極、及びキャパシタ配線と重ならない位置でソース配線と画素電極との間に短絡がある場合、短絡箇所をカットし、
7)画素電極とソース接続電極との間に短絡がある場合、短絡箇所のうち、ゲート配線やキャパシタ電極と重ならない位置をカットし、
8)ドレイン接続電極に断線があった場合に、断線がある薄膜トランジスタの画素電極を第1キャパシタと第2キャパシタとの間でカットする、
請求項10に記載の薄膜トランジスタアレイの製造方法。 - 絶縁膜を形成する工程をさらに有する、請求項10~13のいずれか1項に記載の薄膜トランジスタアレイの製造方法。
- 上部画素電極を形成する工程をさらに有する、請求項14に記載の薄膜トランジスタアレイの製造方法。
- 請求項10~15のいずれか1項に記載の薄膜トランジスタアレイの製造方法で作製した薄膜トランジスタアレイと、対向電極を有する別基板との間に、表示媒体を挟んだ、画像表示装置。
- 前記表示媒体が電気泳動体であって、2つの薄膜トランジスタのうち1つを切除した画素の位置を記憶しておき、当該画素の元データの明度を補正しておく、請求項16に記載の画像表示装置の表示方法。
- 前記表示媒体が液晶であって、2つの薄膜トランジスタのうち1つを切除した画素の位置を記憶しておき、当該画素駆動時のソース電圧を補正する、請求項16に記載の画像表示装置の表示方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015523842A JP6402713B2 (ja) | 2013-06-27 | 2014-06-03 | 薄膜トランジスタアレイ、その製造方法、画像表示装置及び表示方法 |
| CN201480034262.8A CN105308668B (zh) | 2013-06-27 | 2014-06-03 | 薄膜晶体管阵列及其制造方法、图像显示装置及显示方法 |
| EP14817706.6A EP3016089A4 (en) | 2013-06-27 | 2014-06-03 | Thin-film transistor array, method for manufacturing same, image display device, and display method |
| US14/980,314 US10141349B2 (en) | 2013-06-27 | 2015-12-28 | Thin-film transistor array, fabrication method therefor, image display device and display method |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-135224 | 2013-06-27 | ||
| JP2013135224 | 2013-06-27 | ||
| JP2013147561 | 2013-07-16 | ||
| JP2013-147561 | 2013-07-16 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/980,314 Continuation US10141349B2 (en) | 2013-06-27 | 2015-12-28 | Thin-film transistor array, fabrication method therefor, image display device and display method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014208013A1 true WO2014208013A1 (ja) | 2014-12-31 |
Family
ID=52141388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/002961 Ceased WO2014208013A1 (ja) | 2013-06-27 | 2014-06-03 | 薄膜トランジスタアレイ、その製造方法、画像表示装置及び表示方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10141349B2 (ja) |
| EP (1) | EP3016089A4 (ja) |
| JP (1) | JP6402713B2 (ja) |
| CN (1) | CN105308668B (ja) |
| TW (1) | TWI612507B (ja) |
| WO (1) | WO2014208013A1 (ja) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102692576B1 (ko) * | 2016-07-20 | 2024-08-07 | 삼성디스플레이 주식회사 | 디스플레이 장치 |
| GB2576950B (en) | 2018-09-10 | 2022-03-02 | Pragmatic Printing Ltd | Electronic circuit and method of manufacture |
| CN110133927A (zh) * | 2019-04-30 | 2019-08-16 | 深圳市华星光电半导体显示技术有限公司 | 显示面板及其修复方法 |
| CN112992932A (zh) | 2021-02-05 | 2021-06-18 | 深圳市华星光电半导体显示技术有限公司 | 阵列基板及其制备方法、短路修补方法 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63289534A (ja) * | 1987-05-22 | 1988-11-28 | Seiko Epson Corp | アクテイブマトリクスパネル |
| JPH0667208A (ja) * | 1992-08-21 | 1994-03-11 | Fujitsu Ltd | 液晶表示装置 |
| JPH07199221A (ja) | 1993-12-28 | 1995-08-04 | Toshiba Corp | 液晶表示装置 |
| JPH0990408A (ja) * | 1995-09-28 | 1997-04-04 | Toshiba Corp | 液晶表示素子 |
| JPH10133228A (ja) | 1996-10-28 | 1998-05-22 | Sharp Corp | 液晶表示パネル |
| JP2002023132A (ja) * | 2000-04-06 | 2002-01-23 | Chi Mei Electronics Corp | 欠陥修理機能のある液晶ディスプレイ部材 |
| JP2002350901A (ja) * | 2001-02-15 | 2002-12-04 | Matsushita Electric Ind Co Ltd | 液晶表示装置およびその修復方法 |
| WO2006064832A1 (ja) * | 2004-12-16 | 2006-06-22 | Sharp Kabushiki Kaisha | アクティブマトリクス基板、アクティブマトリクス基板の製造方法、表示装置、液晶表示装置およびテレビジョン装置 |
| WO2009078200A1 (ja) * | 2007-12-19 | 2009-06-25 | Sharp Kabushiki Kaisha | アクティブマトリクス基板、アクティブマトリクス基板の製造方法、液晶パネル、液晶表示装置、液晶表示ユニット、テレビジョン受像機 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02165125A (ja) * | 1988-12-20 | 1990-06-26 | Seiko Epson Corp | 表示装置 |
| KR0139319B1 (ko) * | 1994-11-14 | 1998-06-15 | 김광호 | 한 화소에 이중배선과 복수의 트랜지스터를 구비한 액정 표시 장치 |
| JP3268723B2 (ja) * | 1996-03-25 | 2002-03-25 | シャープ株式会社 | アクティブマトリクス基板および液晶表示装置 |
| JP4132528B2 (ja) * | 2000-01-14 | 2008-08-13 | シャープ株式会社 | 液晶表示装置の製造方法 |
| KR100848099B1 (ko) * | 2002-05-27 | 2008-07-24 | 삼성전자주식회사 | 액정 표시 장치용 박막 트랜지스터 기판 |
| US6862052B2 (en) * | 2001-12-14 | 2005-03-01 | Samsung Electronics Co., Ltd. | Liquid crystal display, thin film transistor array panel for liquid crystal display and manufacturing method thereof |
| JP4108633B2 (ja) * | 2003-06-20 | 2008-06-25 | シャープ株式会社 | 薄膜トランジスタおよびその製造方法ならびに電子デバイス |
| JP5286826B2 (ja) * | 2007-03-28 | 2013-09-11 | 凸版印刷株式会社 | 薄膜トランジスタアレイ、薄膜トランジスタアレイの製造方法、およびアクティブマトリスクディスプレイ |
| CN101719493B (zh) * | 2008-10-08 | 2014-05-14 | 株式会社半导体能源研究所 | 显示装置 |
| JP2010156867A (ja) * | 2008-12-27 | 2010-07-15 | Sharp Corp | 薄膜トランジスタ基板前駆体及び薄膜トランジスタ基板の製造方法 |
| JP4743348B2 (ja) * | 2009-03-17 | 2011-08-10 | 凸版印刷株式会社 | 薄膜トランジスタアレイおよび薄膜トランジスタアレイを用いた画像表示装置 |
-
2014
- 2014-06-03 CN CN201480034262.8A patent/CN105308668B/zh not_active Expired - Fee Related
- 2014-06-03 EP EP14817706.6A patent/EP3016089A4/en not_active Withdrawn
- 2014-06-03 JP JP2015523842A patent/JP6402713B2/ja not_active Expired - Fee Related
- 2014-06-03 WO PCT/JP2014/002961 patent/WO2014208013A1/ja not_active Ceased
- 2014-06-26 TW TW103122018A patent/TWI612507B/zh not_active IP Right Cessation
-
2015
- 2015-12-28 US US14/980,314 patent/US10141349B2/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63289534A (ja) * | 1987-05-22 | 1988-11-28 | Seiko Epson Corp | アクテイブマトリクスパネル |
| JPH0667208A (ja) * | 1992-08-21 | 1994-03-11 | Fujitsu Ltd | 液晶表示装置 |
| JPH07199221A (ja) | 1993-12-28 | 1995-08-04 | Toshiba Corp | 液晶表示装置 |
| JPH0990408A (ja) * | 1995-09-28 | 1997-04-04 | Toshiba Corp | 液晶表示素子 |
| JPH10133228A (ja) | 1996-10-28 | 1998-05-22 | Sharp Corp | 液晶表示パネル |
| JP2002023132A (ja) * | 2000-04-06 | 2002-01-23 | Chi Mei Electronics Corp | 欠陥修理機能のある液晶ディスプレイ部材 |
| JP2002350901A (ja) * | 2001-02-15 | 2002-12-04 | Matsushita Electric Ind Co Ltd | 液晶表示装置およびその修復方法 |
| WO2006064832A1 (ja) * | 2004-12-16 | 2006-06-22 | Sharp Kabushiki Kaisha | アクティブマトリクス基板、アクティブマトリクス基板の製造方法、表示装置、液晶表示装置およびテレビジョン装置 |
| WO2009078200A1 (ja) * | 2007-12-19 | 2009-06-25 | Sharp Kabushiki Kaisha | アクティブマトリクス基板、アクティブマトリクス基板の製造方法、液晶パネル、液晶表示装置、液晶表示ユニット、テレビジョン受像機 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP3016089A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105308668B (zh) | 2018-02-02 |
| US10141349B2 (en) | 2018-11-27 |
| TW201506871A (zh) | 2015-02-16 |
| JPWO2014208013A1 (ja) | 2017-02-23 |
| US20160211280A1 (en) | 2016-07-21 |
| EP3016089A1 (en) | 2016-05-04 |
| EP3016089A4 (en) | 2017-03-29 |
| JP6402713B2 (ja) | 2018-10-10 |
| TWI612507B (zh) | 2018-01-21 |
| CN105308668A (zh) | 2016-02-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI415239B (zh) | Liquid crystal display panel, manufacturing method thereof, and array substrate and manufacturing method thereof | |
| US20180108724A1 (en) | Organic light emitting diode display device and method for manufacturing the same | |
| KR20180061860A (ko) | 박막 트랜지스터 및 이를 이용한 표시패널 | |
| US20170235200A1 (en) | Display device and manufacturing method thereof | |
| US7253851B2 (en) | Pixel and method for pixel repair | |
| CN103460270A (zh) | 有源矩阵基板、显示装置和有源矩阵基板的制造方法 | |
| JP6402713B2 (ja) | 薄膜トランジスタアレイ、その製造方法、画像表示装置及び表示方法 | |
| TWI631715B (zh) | Thin film transistor array | |
| JP5250832B2 (ja) | アクティブマトリクス駆動表示装置 | |
| US20150241743A1 (en) | Liquid crystal display device | |
| US9478612B2 (en) | Thin film transistor and display device using the same | |
| US8330917B2 (en) | Thin film transistor substrate and liquid crystal display having the same | |
| US20190250478A1 (en) | Liquid crystal display device | |
| CN107045236B (zh) | 液晶显示设备 | |
| US9711622B2 (en) | Manufacturing method of display apparatus | |
| US20120081273A1 (en) | Pixel structure, pixel array and display panel | |
| US20210193697A1 (en) | Display device and manufacturing method thereof | |
| JP6451054B2 (ja) | 薄膜トランジスタアレイ、その製造方法及び画像表示装置 | |
| JP5379790B2 (ja) | アクティブマトリクス基板及びそれを備えた液晶表示パネル並びにアクティブマトリクス基板の製造方法 | |
| JP5162232B2 (ja) | 表示装置 | |
| JP2010165866A (ja) | 薄膜トランジスタ基板の製造方法 | |
| JP5741134B2 (ja) | 電気泳動体表示装置およびその製造方法 | |
| JP2010181482A (ja) | アクティブマトリクス基板及びその製造方法並びに表示装置 | |
| KR20050110959A (ko) | 박막 트랜지스터 표시판 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 201480034262.8 Country of ref document: CN |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14817706 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 2015523842 Country of ref document: JP Kind code of ref document: A |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2014817706 Country of ref document: EP |