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WO2019168303A1 - Digitizer integrated with touch sensor and display device comprising same - Google Patents

Digitizer integrated with touch sensor and display device comprising same Download PDF

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Publication number
WO2019168303A1
WO2019168303A1 PCT/KR2019/002199 KR2019002199W WO2019168303A1 WO 2019168303 A1 WO2019168303 A1 WO 2019168303A1 KR 2019002199 W KR2019002199 W KR 2019002199W WO 2019168303 A1 WO2019168303 A1 WO 2019168303A1
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WO
WIPO (PCT)
Prior art keywords
digitizer
touch sensor
electrode
layer
sensor integrated
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
Application number
PCT/KR2019/002199
Other languages
French (fr)
Korean (ko)
Inventor
최병진
박민혁
박성환
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongwoo Fine Chem Co Ltd
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Dongwoo Fine Chem Co Ltd
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Filing date
Publication date
Application filed by Dongwoo Fine Chem Co Ltd filed Critical Dongwoo Fine Chem Co Ltd
Publication of WO2019168303A1 publication Critical patent/WO2019168303A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/40—OLEDs integrated with touch screens
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material

Definitions

  • the present invention relates to a touch sensor integrated digitizer and a display device including the same.
  • the touch input method may be combined with a display screen without a separate input device such as a keyboard or a mouse, and the user may directly input a specific position on the display screen to provide an intuitive and convenient user interface.
  • the capacitive touch sensor structure is widely used as a touch input method, and the capacitive touch sensor detects a change in capacitance between the touch sensing electrode and a finger or crosses the first touch sensing electrode according to the touch input.
  • the position of the touch input is calculated by detecting a change in capacitance between the second touch sensing electrodes.
  • the capacitive touch sensor that performs input using a finger has an advantage of being intuitive and simple, but there is a limitation in specifying precise coordinates. Accordingly, a digitizer using an Electro Magnetic Resonance (EMR) method using a pen is advantageously used for precise graphic input.
  • EMR Electro Magnetic Resonance
  • Korean Patent Laid-Open No. 10-2015-0092817 discloses an EMR sensor substrate in which a plurality of loop coils are arranged; And a magnetic sheet disposed on a rear surface of the EMR sensor substrate and formed of a magnetic material for inducing electromagnetic field formation of the EMR sensor substrate, wherein the EMR sensor substrate is an FPCB.
  • the digitizer module using the FPCB is widely used because of its advantages of easy manufacturing and easy handling, but has a disadvantage of high manufacturing cost and complicated configuration.
  • the digitizer module using the FPCB is difficult to apply to a flexible display device that is attracting attention as a next-generation display device because the digitizer module has a thickness of about 100 ⁇ m and has no bending resistance.
  • a touch sensing layer, a digitizer layer, and a pressure sensing layer are stacked, and the touch sensing layer has a transparent electrode coated on the upper and lower surfaces of the glass substrate to detect a finger touch.
  • the digitizer layer is formed on the upper and lower surfaces of the transparent or semi-transparent insulating layer substrate to form a pattern for sensing a pen touch, and the pressure sensing layer is coated on the upper and lower surfaces of the piezo layer, respectively, to detect a finger or a pen.
  • a touch panel having a digitizer function in which a pattern for sensing a pressure of a touch is formed.
  • the thickness of the digitizer integrated display can be reduced to some extent, but the glass substrate is used, which is also difficult to apply to a flexible display device.
  • the process is complicated and the cost increases accordingly. It is easy to bring me a bad occurrence.
  • Patent Document 1 Republic of Korea Patent Publication No. 10-2015-0092817
  • Patent Document 1 Republic of Korea Patent No. 10-1524928
  • the present invention has been made in the technical background as described above, and an object thereof is to provide a touch sensor-integrated digitizer that can reduce the thickness of the entire display device and a display device including the same.
  • Another object of the present invention is to provide a touch sensor integrated digitizer applicable to a flexible display device and a display device including the same.
  • Another object of the present invention is to provide a touch sensor integrated digitizer that can be manufactured at a low cost and a simplified process, and a display device including the same.
  • a flexible base film In order to solve such a problem, in this invention, a flexible base film; A touch sensor layer on the flexible base film; A first passivation layer on the touch sensor layer; A first digitizer electrode on the first passivation layer; An insulating layer on the first digitizer electrode; A second digitizer electrode on the insulating layer; And a second passivation layer on the second digitizer electrode, wherein the first and second digitizer electrodes are provided with a touch sensor integrated digitizer having a thickness of 2000 ⁇ s to 1 ⁇ m.
  • a flexible base film A first digitizer electrode on the flexible base film; An insulating layer on the first digitizer electrode; A second digitizer electrode on the insulating layer; A first passivation layer on the second digitizer electrode; A touch sensor layer on the first passivation layer; And a second passivation layer on the touch sensor layer, wherein the first and second digitizer electrodes are provided with a touch sensor integrated digitizer having a thickness of 2000 ⁇ s to 1 ⁇ m.
  • the flexible substrate film A first passivation layer over the flexible base film; A first digitizer electrode on the first passivation layer; A touch sensor layer on the first digitizer electrode; A second digitizer electrode on the touch sensor layer; And a second passivation layer on the second digitizer electrode, wherein the first and second digitizer electrodes are provided with a touch sensor integrated digitizer having a thickness of 2000 ⁇ s to 1 ⁇ m.
  • the first and second digitizer electrodes may have a thickness of 3000 to 8000 ⁇ .
  • One of the first and second digitizer electrodes may be a transmitter electrode, and the other of the first and second digitizer electrodes may be a receiver electrode.
  • the transmitter electrode may be made of a metal mesh.
  • the transmitter electrode may be made of APC.
  • the transmitter electrode may have a line width of 1 to 10 ⁇ m.
  • the receiver electrode may include a transparent conductive material.
  • the receiver electrode may have a transmittance of 75% or more.
  • the receiver electrode may have a structure having two or more layers.
  • the receiver electrode may have a triple layer structure of ITO / APC / ITO or IZO / APC / IZO.
  • a touch sensor integrated digitizer as described above; And a display layer under the touch sensor integrated digitizer.
  • the flexible display device may further include a shielding layer under the display layer.
  • the display layer may be an LCD layer or an OLED layer.
  • a digitizer module and a touch sensor are laminated and formed on a single flexible film substrate to achieve a thin film and obtain a touch sensor integrated digitizer that can be applied to a flexible display device.
  • the touch sensor integrated digitizer of the present invention is formed by stacking a digitizer module and a touch sensor on a single flexible film substrate, thereby reducing the number of necessary substrates and the number of bonding processes, thereby reducing costs and reducing process time.
  • the distance between the pen and the pen pressure is improved by thinning the thin film, and in particular, the pen pressure sensing level may be improved by forming a receiver digitizer electrode on the touch sensor.
  • FIG. 1 is a cross-sectional view of a touch sensor integrated digitizer according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a touch sensor integrated digitizer according to a second embodiment of the present invention.
  • FIG 3 is a cross-sectional view of a touch sensor integrated digitizer according to a third embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.
  • FIG. 1 is a cross-sectional view of a touch sensor integrated digitizer according to a first embodiment of the present invention.
  • the touch sensor integrated digitizer 10 includes a base film 110, a touch sensor layer 120 on the base film 110, and an upper part of the touch sensor layer 120.
  • the passivation layer 130, the passivation layer 130 of the digitizer module 140 is formed on the top.
  • the digitizer module 140 is disposed on the first digitizer electrode 141, the insulating layer 142 on the first digitizer electrode 141, the second digitizer electrode 143 on the insulating layer 142, and the second digitizer electrode 143. Passivation layer 144.
  • One of the first and second digitizer electrodes 141 and 143 may be used as the transmitter digitizer electrode and the other may be used as the receiver digitizer electrode.
  • the first and second digitizer electrodes 141 and 143 use a transparent conductive material or finely form an electrode pattern so that the pattern is not visually recognized. can do.
  • the first and second digitizer electrodes 141 and 143 may be formed of one or more materials selected from metal oxides, metal meshes, metal nanowires, carbon nanotubes, graphene, conductive polymers, and conductive inks.
  • metal mesh for example, gold (Au), silver (Ag), copper (Cu), molybdenum (Mo), nickel (Ni), chromium (Cr), aluminum (Al), silver-palladium- Copper alloys (APC) and the like can be used, but are not limited thereto.
  • the transmitter electrode for example, the first digitizer electrode 141, of the first and second digitizer electrodes 141 and 143 may be formed of a metal mesh.
  • the electrode When using a metal mesh, the electrode can be formed to have a line width of 1 to 10 ⁇ m.
  • the line width is 10 ⁇ m or less, even if the touch sensor-integrated digitizer of the present invention is formed on the display layer, it is not easily visualized to ensure the display quality.
  • the line width is less than 1 ⁇ m, there may be difficulties in the patterning process.
  • Metal oxides include indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), aluminum zinc oxide (AZO), gallium zinc oxide (GZO), florin tin oxide (FTO), and zinc oxide (ZnO Can be any one of
  • the metal nanowires may be any one of silver nanowires, copper nanowires, zirconium nanowires, and gold nanowires.
  • the conductive polymer includes polypyrrole, polythiophene, polyacetylene, PODOT and polyaniline, and the conductive ink includes an ink in which a metal powder and a curable polymer binder are mixed. do.
  • the first and second digitizer electrodes 141 and 143 may be formed in a laminated structure of two or more conductive layers, in some cases, in order to reduce electrical resistance while ensuring transmittance, for example, metal oxide / metal It can be formed into a triple layer structure of / metal oxide.
  • a triple layer structure of a metal oxide may be used, for example, a structure of IZO / APC / IZO or ITO / APC / ITO.
  • the transmittance may be 75 to 92%.
  • the line width of the electrode is not particularly limited, and may be formed to have a line width of, for example, 10 to 500 ⁇ m. If the line width is less than 10 ⁇ m, the driving resistance is high, which may result in a slow reaction speed or a decrease in sensitivity of the pen.
  • the receiver electrode for example, the second digitizer electrode 143, of the first and second digitizer electrodes 141 and 143 may have a triple layer structure.
  • the first and second digitizer electrodes 141 and 143 may each have a thickness of 2000 ⁇ m to 1 ⁇ m. If the thicknesses of the first and second digitizer electrodes 141 and 143 are less than 2000 kPa, the sheet resistance may increase to decrease electrical characteristics. If the first and second digitizer electrodes 141 and 143 have a thickness less than 2000 ⁇ m, the flex resistance may be lowered.
  • the first and second digitizer electrodes 141 and 143 have a thickness of 3000 to 8000 kPa.
  • the thicknesses of the first and second digitizer electrodes 141 and 143 are 3000 to 8000 , the bending and folding resistance can be secured, which is more suitable for the flexible display device. Do.
  • the thicknesses of the first and second digitizer electrodes 141 and 143 may be the same or different from each other.
  • the material and thickness of IZO 200-600 Pa / APC 30-300 Pa / IZO 200-600 Pa can be used, for example.
  • ITO 200 to 600 mV / APC 30 to 300 mV / ITO 200 to 600 mV can be used.
  • ITO 1050 to 1650 mW / APC 30 to 300 mW / ITO 1050 to 1650 mW can be used.
  • the first and second digitizer electrodes 141, 143 may be formed by vapor deposition, in particular sputtering. Using the sputtering method, the first and second digitizer electrodes 141 and 143 can be formed to a thinner thickness than in the case of using a metal foil as in the digitizer currently commercialized.
  • the visibility may be improved by forming a dummy pattern having a shape similar to that of the electrode although not shown in the drawing. have.
  • the transmitter electrode is formed of a metal mesh and the receiver electrode is formed of a triple layer structure, but the present invention is not limited thereto.
  • the transmitter electrode and the receiver electrode may be formed of the various materials and structures described above. Of course it can be formed.
  • the insulating layer 142 may be formed of an organic insulating film or an inorganic insulating film.
  • the insulating layer 142 may have a thickness of 1 to 5 ⁇ m, more preferably 1.5 to 2.5 ⁇ m.
  • an insulating material known in the art may be used without limitation, and a photosensitive resin composition or a thermosetting resin composition including a non-metal oxide or an acrylic resin such as silicon oxide may be used.
  • the passivation layer 144 may be formed of, for example, a polycycloolefin-based material, and may have a thickness of 0.5 to 5 ⁇ m.
  • the passivation layer 144 may be formed of, for example, an acrylic organic insulating film material, and may have a thickness of 0.5 to 5 ⁇ m.
  • a flexible film may be used, and in particular, a transparent film may be used.
  • polyester-based resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene naphthalate, and polybutylene terephthalate; Cellulose resins such as diacetyl cellulose and triacetyl cellulose; Polycarbonate resins; Acrylic resins such as polymethyl (meth) acrylate and polyethyl (meth) acrylate; Styrene resins such as polystyrene and acrylonitrile-styrene copolymers; Polyolefin-based resins such as polyethylene, polypropylene, cyclo-based or norbornene-structured polyolefins, ethylene-propylene copolymers; Vinyl chloride-based resins; Amide resins such as nylon and aromatic polyamides; Imide resin; Polyether sulfone resin; Sulfone resins; Polyether ether ketone resins;
  • the thickness of such a transparent film can be suitably determined, it is generally about 1-500 micrometers in terms of workability, thinness, etc., such as intensity
  • Such a transparent film may contain an appropriate one or more additives.
  • an additive a ultraviolet absorber, antioxidant, a lubricating agent, a plasticizer, a mold release agent, a coloring agent, a flame retardant, an antistatic agent, a pigment, a coloring agent, etc. are mentioned, for example.
  • the transparent film may have a structure including various functional layers such as a hard coating layer, an antireflection layer, and a gas barrier layer on one or both surfaces of the film, and the functional layer is not limited to the above-described ones. It may include.
  • the transparent film may be surface-treated as needed.
  • Such surface treatments include dry treatments such as plasma treatments, corona treatments, primer treatments, and chemical treatments such as alkali treatments including saponification treatments.
  • the touch sensor layer 120 has a structure of an electrode pattern used in a capacitive touch sensor, and a mutual capacitive type or a self-capacitive type may be applied.
  • the grid electrode structure may be a horizontal axis and a vertical axis.
  • the intersection electrode of the horizontal axis and the vertical axis may include a bridge electrode.
  • an electrode pattern structure of a method of reading capacitance change using one electrode at each point may be provided.
  • the electrode of the touch sensor layer 120 may be formed of one or more materials selected from metals, metal oxides, metal meshes, metal nanowires, carbon nanotubes, graphene, conductive polymers, and conductive inks.
  • the passivation layer 130 may be formed of, for example, a polycycloolefin-based material, and may have a thickness of 0.5 to 5 ⁇ m.
  • the touch sensor-integrated digitizer uses a flexible base film and sequentially stacks the touch sensor and the digitizer on a single flexible base film, thereby achieving thinning and obtaining flex resistance, which can be applied to a flexible display device. Can be.
  • the digitizer is located on the upper part of the touch sensor, the distance from the pen is closer, so that the pressure sensitivity of the digitizer is improved.
  • the digitizer module may be formed first and the touch sensor may be formed thereon.
  • FIG. 2 is a cross-sectional view of a touch sensor integrated digitizer according to a second embodiment of the present invention.
  • the touch sensor integrated digitizer 20 may include a base film 210, a digitizer module 240 on the base film 210, and a touch sensor on the digitizer module 240.
  • the layer 220 includes a passivation layer 230 on the touch sensor layer 220.
  • the digitizer module 240 is disposed on the first digitizer electrode 241, the insulating layer 242 on the first digitizer electrode 241, the second digitizer electrode 243 and the second digitizer electrode 143 on the insulating layer 242. Passivation layer 244.
  • One of the first and second digitizer electrodes 241 and 243 may be used as the transmitter digitizer electrode, and the other may be used as the receiver digitizer electrode.
  • the touch sensor integrated digitizer according to the second embodiment of the present invention also uses the flexible base film as in the first embodiment of the present invention, and sequentially laminates the touch sensor and the digitizer on a single flexible base film, thereby achieving thinning and flex resistance. Can be applied to the flexible display device.
  • the digitizer is located under the touch sensor, but since the touch sensor is laminated in a thin layer on the digitizer without a separate description, the digitizer and the pen are compared with the digitizer of the prior art. As the distance of N is closer, the pressure sensitivity of the digitizer can be improved.
  • the digitizer module may be divided into two sub modules and disposed on the upper and lower portions of the touch sensor, respectively.
  • FIG 3 is a cross-sectional view of a touch sensor integrated digitizer according to a third embodiment of the present invention in which a digitizer module is divided into two sub-modules and a receiving module is disposed above the touch sensor.
  • the touch sensor integrated digitizer 30 may include a base film 310, a first passivation layer 342 on the base film 310, and a first passivation layer 342.
  • One of the first and second digitizer electrodes 241 and 243 may be used as the transmitter digitizer electrode, and the other may be used as the receiver digitizer electrode.
  • the touch sensor integrated digitizer according to the third embodiment of the present invention also uses the flexible base film as in the first embodiment of the present invention, and sequentially laminates the touch sensor and the digitizer on a single flexible base film, thereby achieving thinning and bending resistance. Can be applied to the flexible display device.
  • the distance between the digitizer and the pen is determined by using the second digitizer electrode 343 positioned on the touch sensor layer 320 as the receiver digitizer electrode. It can be very close, which improves the pressure sensitivity of the digitizer.
  • the color filter integrated flexible touch sensor according to the exemplary embodiment of the present invention may be combined with the display layer to be used for the display device.
  • FIG. 4 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.
  • the display device includes the touch sensor integrated digitizer 10 and the touch layer integrated touch sensor digitizer 10 according to the first embodiment of the present invention. 40).
  • the display layer 40 any one applicable to the flexible display device may be used without limitation.
  • the display layer 40 may be an OLED layer or an LCD layer.
  • a shielding layer may be further included below the display layer 40.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Human Computer Interaction (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Provided is a digitizer integrated with a touch sensor, the digitizer having a touch sensor formed on a flexible base film, and having a digitizer module, which is made of a transparent conductive material, formed on the touch sensor, thereby being applicable to a flexible display device.

Description

터치센서 일체형 디지타이저 및 이를 포함하는 표시 장치Touch sensor integrated digitizer and display device including the same

본 발명은 터치센서 일체형 디지타이저 및 이를 포함하는 표시 장치에 관한 것이다.The present invention relates to a touch sensor integrated digitizer and a display device including the same.

최근의 표시 장치에는 사용자가 손가락을 이용하여 직접 화면을 터치하여 입력하는 터치 입력방식이 많이 적용되고 있다. 터치 입력방식은 키보드나 마우스와 같은 별도의 입력장치 없이 표시 화면에 결합될 수 있으며, 사용자가 표시 화면의 특정 위치를 직접 터치하여 입력할 수 있어 직관적이고 편리한 사용자 인터페이스를 제공할 수 있다. In recent years, a touch input method in which a user directly touches a screen using a finger and inputs it has been applied to a display device. The touch input method may be combined with a display screen without a separate input device such as a keyboard or a mouse, and the user may directly input a specific position on the display screen to provide an intuitive and convenient user interface.

터치 입력방식으로 현재 정전용량식 터치 센서의 구조가 널리 이용되고 있으며, 정전용량식 터치 센서는 터치 입력에 따라 터치 감지 전극과 손가락 사이의 정전용량 변화를 감지하거나 서로 교차하는 제1 터치 감지 전극과 제2 터치 감지 전극 사이의 정전용량 변화를 감지하여 터치 입력의 위치를 산출한다. The capacitive touch sensor structure is widely used as a touch input method, and the capacitive touch sensor detects a change in capacitance between the touch sensing electrode and a finger or crosses the first touch sensing electrode according to the touch input. The position of the touch input is calculated by detecting a change in capacitance between the second touch sensing electrodes.

손가락을 이용하여 입력을 수행하는 정전용량 방식의 터치 센서는 직관적이고 간편하다는 장점이 있지만, 정밀한 좌표의 지정에는 한계가 있다. 이에 따라, 정밀한 그래픽 입력을 위해서는 펜을 사용하는 전자기 공진(ElectroMagnetic Resonance, EMR) 방식을 사용하는 디지타이저가 유리하게 사용된다. The capacitive touch sensor that performs input using a finger has an advantage of being intuitive and simple, but there is a limitation in specifying precise coordinates. Accordingly, a digitizer using an Electro Magnetic Resonance (EMR) method using a pen is advantageously used for precise graphic input.

예를 들면 대한민국 공개특허 제10-2015-0092817호에서는 복수의 루프 코일이 배열되어 있는 EMR 센서 기판; 및 상기 EMR 센서 기판의 후면에 배치되고 상기 EMR 센서 기판의 전자기장 형성을 유도하는 자성 물질로 구성되어 있는 마그네틱 시트를 포함하며, EMR 센서 기판이 FPCB인 디지타이저 모듈을 개시하고 있다. For example, Korean Patent Laid-Open No. 10-2015-0092817 discloses an EMR sensor substrate in which a plurality of loop coils are arranged; And a magnetic sheet disposed on a rear surface of the EMR sensor substrate and formed of a magnetic material for inducing electromagnetic field formation of the EMR sensor substrate, wherein the EMR sensor substrate is an FPCB.

이와 같이 FPCB를 사용하는 디지타이저 모듈은 제조가 용이하고 취급이 간편한 장점이 있어 현재 널리 사용되고 있지만, 제조 비용이 높고 구성이 복잡한 단점이 있다. 또한, FPCB를 사용하는 디지타이저 모듈은 두께가 100㎛ 정도로 두껍고 내굴곡성이 없어 차세대 표시장치로 주목받고 있는 유연성 표시장치에 적용하기는 어렵다.As such, the digitizer module using the FPCB is widely used because of its advantages of easy manufacturing and easy handling, but has a disadvantage of high manufacturing cost and complicated configuration. In addition, the digitizer module using the FPCB is difficult to apply to a flexible display device that is attracting attention as a next-generation display device because the digitizer module has a thickness of about 100 μm and has no bending resistance.

한편, 대한민국 등록특허 제10-1524928호에서는 터치감지층, 디지타이저층, 및 압력감지층이 적층 형성되며, 터치감지층은 글래스기판 상하면에 각각 투명 전극이 코팅되어 손가락 터치를 감지할 수 있는 패턴이 형성되며, 디지타이저층은 투명 또는 반투명한 절연층 기판 상하면에 각각 투명 전극이 코팅되어 펜 터치를 감지할 수 있는 패턴이 형성되고, 압력감지층은 피에조층 상하면에 각각 투명 전극이 코팅되어 손가락이나 펜 터치의 압력을 감지할 수 있는 패턴이 형성되는 디지타이저 기능을 구비한 터치패널을 개시하고 있다.Meanwhile, in Korean Patent No. 10-1524928, a touch sensing layer, a digitizer layer, and a pressure sensing layer are stacked, and the touch sensing layer has a transparent electrode coated on the upper and lower surfaces of the glass substrate to detect a finger touch. The digitizer layer is formed on the upper and lower surfaces of the transparent or semi-transparent insulating layer substrate to form a pattern for sensing a pen touch, and the pressure sensing layer is coated on the upper and lower surfaces of the piezo layer, respectively, to detect a finger or a pen. Disclosed is a touch panel having a digitizer function in which a pattern for sensing a pressure of a touch is formed.

이 경우 디지타이저 통합형 디스플레이의 두께를 어느 정도 줄일 수 있으나, 글래스 기판을 사용하고 있어 이 또한 유연성 표시장치에 적용하기는 어렵다. 뿐만 아니라, 각각 글래스 기판과 절연층 기판의 상하면에 손가락 터치를 감지할 수 있는 패턴과 펜 터치를 감지할 수 있는 패턴을 형성하기 위해서는 기판을 반전하여야 하는 등과 같이 공정이 복잡하고 이에 따른 비용의 증가나 불량 발생을 가져오기 쉽다.In this case, the thickness of the digitizer integrated display can be reduced to some extent, but the glass substrate is used, which is also difficult to apply to a flexible display device. In addition, in order to form patterns for detecting finger touch and patterns for detecting pen touch on the upper and lower surfaces of the glass substrate and the insulating layer substrate, the process is complicated and the cost increases accordingly. It is easy to bring me a bad occurrence.

[선행기술문헌][Preceding technical literature]

(특허문헌 1) 대한민국 공개특허 제10-2015-0092817호(Patent Document 1) Republic of Korea Patent Publication No. 10-2015-0092817

(특허문헌 1) 대한민국 등록특허 제10-1524928호(Patent Document 1) Republic of Korea Patent No. 10-1524928

본 발명은 상술한 바와 같은 기술적 배경에서 안출된 것으로서, 표시 장치 전체의 두께를 줄일 수 있는 터치센서 일체형 디지타이저 및 이를 포함하는 표시 장치를 제공하는 것을 그 목적으로 한다.The present invention has been made in the technical background as described above, and an object thereof is to provide a touch sensor-integrated digitizer that can reduce the thickness of the entire display device and a display device including the same.

본 발명의 다른 목적은 유연성 표시 장치에 적용할 수 있는 터치센서 일체형 디지타이저 및 이를 포함하는 표시 장치를 제공하는 것이다.Another object of the present invention is to provide a touch sensor integrated digitizer applicable to a flexible display device and a display device including the same.

본 발명의 또 다른 목적은 간소화된 공정과 저비용으로 제조할 수 있는 터치센서 일체형 디지타이저 및 이를 포함하는 표시 장치를 제공하는 것이다.Another object of the present invention is to provide a touch sensor integrated digitizer that can be manufactured at a low cost and a simplified process, and a display device including the same.

이와 같은 과제를 해결하기 위하여 본 발명에서는, 유연성 기재 필름; 상기 유연성 기재 필름 상부의 터치센서층; 상기 터치센서층 상부의 제1 패시베이션층; 상기 제1 패시베이션층 상부의 제1 디지타이저 전극; 상기 제1 디지타이저 전극 상부의 절연층; 상기 절연층 상부의 제2 디지타이저 전극; 및 상기 제2 디지타이저 전극 상부의 제2 패시베이션층을 포함하며, 상기 제1 및 제2 디지타이저 전극은 2000Å 내지 1㎛의 두께를 갖는 터치센서 일체형 디지타이저가 제공된다.In order to solve such a problem, in this invention, a flexible base film; A touch sensor layer on the flexible base film; A first passivation layer on the touch sensor layer; A first digitizer electrode on the first passivation layer; An insulating layer on the first digitizer electrode; A second digitizer electrode on the insulating layer; And a second passivation layer on the second digitizer electrode, wherein the first and second digitizer electrodes are provided with a touch sensor integrated digitizer having a thickness of 2000 μs to 1 μm.

본 발명의 다른 양상에 따르면, 유연성 기재 필름; 상기 유연성 기재 필름 상부의 제1 디지타이저 전극; 상기 제1 디지타이저 전극 상부의 절연층; 상기 절연층 상부의 제2 디지타이저 전극; 상기 제2 디지타이저 전극 상부의 제1 패시베이션층; 상기 제1 패시베이션층 상부의 터치센서층; 및 상기 터치센서층 상부의 제2 패시베이션층을 포함하며, 상기 제1 및 제2 디지타이저 전극은 2000Å 내지 1㎛의 두께를 갖는 터치센서 일체형 디지타이저가 제공된다. According to another aspect of the present invention, a flexible base film; A first digitizer electrode on the flexible base film; An insulating layer on the first digitizer electrode; A second digitizer electrode on the insulating layer; A first passivation layer on the second digitizer electrode; A touch sensor layer on the first passivation layer; And a second passivation layer on the touch sensor layer, wherein the first and second digitizer electrodes are provided with a touch sensor integrated digitizer having a thickness of 2000 μs to 1 μm.

본 발명의 또 다른 양상에 따르면, 유연성 기재 필름; 상기 유연성 기재 필름 상부의 제1 패시베이션층; 상기 제1 패시베이션층 상부의 제1 디지타이저 전극; 상기 제1 디지타이저 전극 상부의 터치센서층; 상기 터치센서층 상부의 제2 디지타이저 전극; 및 상기 제2 디지타이저 전극 상부의 제2 패시베이션층을 포함하며, 상기 제1 및 제2 디지타이저 전극은 2000Å 내지 1㎛의 두께를 갖는 터치센서 일체형 디지타이저가 제공된다. According to another aspect of the invention, the flexible substrate film; A first passivation layer over the flexible base film; A first digitizer electrode on the first passivation layer; A touch sensor layer on the first digitizer electrode; A second digitizer electrode on the touch sensor layer; And a second passivation layer on the second digitizer electrode, wherein the first and second digitizer electrodes are provided with a touch sensor integrated digitizer having a thickness of 2000 μs to 1 μm.

상기 제1 및 제2 디지타이저 전극은 3000 내지 8000Å의 두께를 가질 수 있다.The first and second digitizer electrodes may have a thickness of 3000 to 8000 Å.

상기 제1 및 제2 디지타이저 전극 중 하나는 송신부 전극이며, 상기 제1 및 제2 디지타이저 전극 중 다른 하나는 수신부 전극일 수 있다.One of the first and second digitizer electrodes may be a transmitter electrode, and the other of the first and second digitizer electrodes may be a receiver electrode.

상기 송신부 전극은 금속 메시로 이루어질 수 있다.The transmitter electrode may be made of a metal mesh.

상기 송신부 전극은 APC로 이루어질 수 있다.The transmitter electrode may be made of APC.

상기 송신부 전극은 1 내지 10㎛의 선폭을 가질 수 있다.The transmitter electrode may have a line width of 1 to 10 μm.

상기 수신부 전극은 투명 전도성 재료를 포함할 수 있다.The receiver electrode may include a transparent conductive material.

상기 수신부 전극은 투과율이 75% 이상일 수 있다.The receiver electrode may have a transmittance of 75% or more.

상기 수신부 전극은 2개 이상의 층을 갖는 구조로 이루어질 수 있다.The receiver electrode may have a structure having two or more layers.

상기 수신부 전극은 ITO/APC/ITO 또는 IZO/APC/IZO의 삼중층 구조로 이루어질 수 있다.The receiver electrode may have a triple layer structure of ITO / APC / ITO or IZO / APC / IZO.

본 발명의 추가적인 양상에 따르면, 상술한 바와 같은 터치센서 일체형 디지타이저; 및 상기 터치센서 일체형 디지타이저 하부의 표시층을 포함하는 유연성 표시 장치가 제공된다.According to a further aspect of the invention, there is provided a touch sensor integrated digitizer as described above; And a display layer under the touch sensor integrated digitizer.

상기 유연성 표시 장치는 상기 표시층 하부의 차폐층을 더 포함할 수 있다.The flexible display device may further include a shielding layer under the display layer.

상기 표시층은 LCD층 또는 OLED층일 수 있다.The display layer may be an LCD layer or an OLED layer.

본 발명에 의하면, 단일의 유연성 필름 기재 상에 디지타이저 모듈과 터치센서를 적층하여 형성함으로써 박막화를 달성하고 유연성 표시 장치에 적용할 수 있는 터치센서 일체형 디지타이저를 얻을 수 있다. According to the present invention, a digitizer module and a touch sensor are laminated and formed on a single flexible film substrate to achieve a thin film and obtain a touch sensor integrated digitizer that can be applied to a flexible display device.

본 발명의 터치센서 일체형 디지타이저는 단일의 유연성 필름 기재 상에 디지타이저 모듈과 터치센서를 적층하여 형성함으로써 필요한 기재의 수와 합착 공정의 수를 줄여 비용을 절감하고 공정 시간을 단축할 수 있다.The touch sensor integrated digitizer of the present invention is formed by stacking a digitizer module and a touch sensor on a single flexible film substrate, thereby reducing the number of necessary substrates and the number of bonding processes, thereby reducing costs and reducing process time.

본 발명의 터치센서 일체형 디지타이저에서는 박막화를 통해 펜과의 거리가 가까워 필압 감지 수준이 향상되며, 특히 터치센서 상부에 수신부 디지타이저 전극을 형성함으로써 필압 감지 수준을 획기적으로 향상할 수 있다. In the touch sensor integrated digitizer of the present invention, the distance between the pen and the pen pressure is improved by thinning the thin film, and in particular, the pen pressure sensing level may be improved by forming a receiver digitizer electrode on the touch sensor.

도 1은 본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저의 단면도이다.1 is a cross-sectional view of a touch sensor integrated digitizer according to a first embodiment of the present invention.

도 2는 본 발명의 제2 실시예에 따른 터치센서 일체형 디지타이저의 단면도이다.2 is a cross-sectional view of a touch sensor integrated digitizer according to a second embodiment of the present invention.

도 3은 본 발명의 제3 실시예에 따른 터치센서 일체형 디지타이저의 단면도이다.3 is a cross-sectional view of a touch sensor integrated digitizer according to a third embodiment of the present invention.

도 4는 본 발명의 일 실시예에 따른 표시장치의 단면도이다.4 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.

이하, 본 발명을 보다 상세히 설명한다. 다만 본 발명을 설명함에 있어서 본 명세서에 첨부된 도면들을 참조할 때, 도면들은 단지 본 발명을 설명하기 위한 예시일 뿐, 본 발명이 도면에 의해 한정되는 것은 아니다. 또한, 설명 상의 편의를 위해 일부 구성요소들은 도면 상에서 과장되게 표현되거나, 축소 또는 생략되어 있을 수 있다.Hereinafter, the present invention will be described in more detail. However, in the following description of the present invention with reference to the accompanying drawings, the drawings are merely illustrative for explaining the present invention, the present invention is not limited by the drawings. In addition, some of the components may be exaggerated, reduced or omitted in the drawings for convenience of description.

도 1은 본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저의 단면도이다.1 is a cross-sectional view of a touch sensor integrated digitizer according to a first embodiment of the present invention.

도 1을 참조하면, 본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저(10)는 기재 필름(110), 기재 필름(110) 상부의 터치센서층(120), 터치센서층(120) 상부의 패시베이션층(130), 패시베이션층(130) 상부의 디지타이저 모듈(140)을 포함하여 이루어진다.Referring to FIG. 1, the touch sensor integrated digitizer 10 according to the first embodiment of the present invention includes a base film 110, a touch sensor layer 120 on the base film 110, and an upper part of the touch sensor layer 120. The passivation layer 130, the passivation layer 130 of the digitizer module 140 is formed on the top.

디지타이저 모듈(140)은 제1 디지타이저 전극(141), 제1 디지타이저 전극(141) 상의 절연층(142), 절연층(142) 상의 제2 디지타이저 전극(143) 및 제2 디지타이저 전극(143) 상의 패시베이션층(144)을 포함한다.The digitizer module 140 is disposed on the first digitizer electrode 141, the insulating layer 142 on the first digitizer electrode 141, the second digitizer electrode 143 on the insulating layer 142, and the second digitizer electrode 143. Passivation layer 144.

제1 및 제2 디지타이저 전극(141, 143) 중 하나는 송신부 디지타이저 전극으로 다른 하나는 수신부 디지타이저 전극으로 사용될 수 있다.One of the first and second digitizer electrodes 141 and 143 may be used as the transmitter digitizer electrode and the other may be used as the receiver digitizer electrode.

본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저(10)에서 제1 및 제2 디지타이저 전극(141, 143)은 그 패턴이 시인되지 않도록 하기 위하여 투명 전도성 재료를 사용하거나 전극 패턴을 미세하게 형성할 수 있다.In the touch sensor integrated digitizer 10 according to the first embodiment of the present invention, the first and second digitizer electrodes 141 and 143 use a transparent conductive material or finely form an electrode pattern so that the pattern is not visually recognized. can do.

구체적으로, 제1 및 제2 디지타이저 전극(141, 143)은 금속 산화물, 금속 메시, 금속 나노와이어, 탄소 나노튜브, 그래핀, 전도성 고분자 및 도전성 잉크에서 선택된 하나 이상의 물질로 형성될 수 있다.Specifically, the first and second digitizer electrodes 141 and 143 may be formed of one or more materials selected from metal oxides, metal meshes, metal nanowires, carbon nanotubes, graphene, conductive polymers, and conductive inks.

금속 메시로는, 예를 들어, 금(Au), 은(Ag), 구리(Cu), 몰리브데늄(Mo), 니켈(Ni), 크롬(Cr), 알루미늄(Al), 은-팔라듐-구리합금(APC) 등을 사용할 수 있으나 이에 한정되는 것은 아니다. As the metal mesh, for example, gold (Au), silver (Ag), copper (Cu), molybdenum (Mo), nickel (Ni), chromium (Cr), aluminum (Al), silver-palladium- Copper alloys (APC) and the like can be used, but are not limited thereto.

제1 및 제2 디지타이저 전극(141, 143) 중 송신부 전극, 예를 들어, 제1 디지타이저 전극(141)이 금속 메시로 이루어질 수 있다.The transmitter electrode, for example, the first digitizer electrode 141, of the first and second digitizer electrodes 141 and 143 may be formed of a metal mesh.

금속 메시를 사용하는 경우에는 전극이 1 내지 10㎛의 선폭을 갖도록 형성할 수 있다. 선폭이 10㎛ 이하일 경우, 본 발명의 터치센서 일체형 디지타이저를 표시층 상부에 형성하더라도 쉽게 시인되지 않아 디스플레이의 품질을 확보할 수 있다. 그러나, 선폭이 1㎛ 미만이면 패터닝 공정 상의 어려움이 있을 수 있다.When using a metal mesh, the electrode can be formed to have a line width of 1 to 10㎛. When the line width is 10 μm or less, even if the touch sensor-integrated digitizer of the present invention is formed on the display layer, it is not easily visualized to ensure the display quality. However, if the line width is less than 1 μm, there may be difficulties in the patterning process.

금속 산화물은 인듐틴옥사이드(ITO), 인듐징크옥사이드(IZO), 인듐징크틴옥사이드(IZTO), 알루미늄징크옥사이드(AZO), 갈륨징크옥사이드(GZO), 플로린틴옥사이드(FTO), 징크옥사이드(ZnO) 중 어느 하나가 될 수 있다.Metal oxides include indium tin oxide (ITO), indium zinc oxide (IZO), indium zinc tin oxide (IZTO), aluminum zinc oxide (AZO), gallium zinc oxide (GZO), florin tin oxide (FTO), and zinc oxide (ZnO Can be any one of

금속 나노와이어는 은 나노와이어, 구리 나노와이어, 지르코늄 나노와이어, 금 나노와이어 중 어느 하나가 될 수 있다.The metal nanowires may be any one of silver nanowires, copper nanowires, zirconium nanowires, and gold nanowires.

전도성 고분자는 폴리피롤(polypyrrole), 폴리티오펜(polythiophene), 폴리아세틸렌(polyacetylene), 피닷(PEDOT) 및 폴리아닐린(polyaniline)을 포함하며, 상기 도전성 잉크는 금속파우더와 경화성 고분자 바인더가 혼합된 잉크를 포함한다.The conductive polymer includes polypyrrole, polythiophene, polyacetylene, PODOT and polyaniline, and the conductive ink includes an ink in which a metal powder and a curable polymer binder are mixed. do.

또는, 투과율을 확보하면서도 전기 저항을 저감시키기 위해 경우에 따라서는 제1 및 제2 디지타이저 전극(141, 143)을 2 이상의 전도층의 적층 구조로 형성할 수 있으며, 예를 들어, 금속 산화물/금속/금속 산화물의 삼중층 구조로 형성할 수 있다.Alternatively, the first and second digitizer electrodes 141 and 143 may be formed in a laminated structure of two or more conductive layers, in some cases, in order to reduce electrical resistance while ensuring transmittance, for example, metal oxide / metal It can be formed into a triple layer structure of / metal oxide.

또한, 금속 산화물의 삼중층 구조를 사용할 수도 있으며, 예를 들면, IZO/APC/IZO 또는 ITO/APC/ITO의 구조를 사용할 수 있다.In addition, a triple layer structure of a metal oxide may be used, for example, a structure of IZO / APC / IZO or ITO / APC / ITO.

삼중층 구조일 경우 그 투과율은 75 내지 92%일 수 있다.In the case of a triple layer structure, the transmittance may be 75 to 92%.

삼중층 구조를 사용할 경우 전극의 선폭은 특별한 제약이 없으며, 예를 들어, 10 내지 500㎛의 선폭을 갖도록 형성할 수 있다. 선폭이 10㎛ 미만이면 구동 저항이 높아 반응속도가 늦거나 펜의 감도가 떨어질 수 있다.When the triple layer structure is used, the line width of the electrode is not particularly limited, and may be formed to have a line width of, for example, 10 to 500 μm. If the line width is less than 10 μm, the driving resistance is high, which may result in a slow reaction speed or a decrease in sensitivity of the pen.

제1 및 제2 디지타이저 전극(141, 143) 중 수신부 전극, 예를 들어, 제2 디지타이저 전극(143)이 삼중층 구조로 이루어질 수 있다.The receiver electrode, for example, the second digitizer electrode 143, of the first and second digitizer electrodes 141 and 143 may have a triple layer structure.

제1 및 제2 디지타이저 전극(141, 143)은 각각 2000Å 내지 1㎛의 두께를 가질 수 있다. 제1 및 제2 디지타이저 전극(141, 143)의 두께가 2000Å 미만이면 면저항이 증가하여 전기적 특성이 저하될 수 있고, 1㎛를 초과하면 내굴곡성이 저하될 수 있다. The first and second digitizer electrodes 141 and 143 may each have a thickness of 2000 μm to 1 μm. If the thicknesses of the first and second digitizer electrodes 141 and 143 are less than 2000 kPa, the sheet resistance may increase to decrease electrical characteristics. If the first and second digitizer electrodes 141 and 143 have a thickness less than 2000 µm, the flex resistance may be lowered.

제1 및 제2 디지타이저 전극(141, 143)은 3000 내지 8000Å의 두께를 갖는 것이 더욱 바람직하다. 제1 및 제2 디지타이저 전극(141, 143)의 두께가 3000 내지 8000Å일 경우, 구부러지는(bending) 것뿐 아니라 접힐(folding) 수 있는 정도의 내굴곡성을 확보할 수 있어 유연성 표시장치에 더욱 적합하다. More preferably, the first and second digitizer electrodes 141 and 143 have a thickness of 3000 to 8000 kPa. When the thicknesses of the first and second digitizer electrodes 141 and 143 are 3000 to 8000 ,, the bending and folding resistance can be secured, which is more suitable for the flexible display device. Do.

제1 및 제2 디지타이저 전극(141, 143)의 두께는 서로 동일하거나 또는 상이할 수 있다.The thicknesses of the first and second digitizer electrodes 141 and 143 may be the same or different from each other.

삼중층의 구조를 사용할 경우, 예를 들어 IZO 200 내지 600Å/APC 30 내지 300Å/IZO 200 내지 600Å의 재료와 두께를 사용할 수 있다. When using the structure of the triple layer, the material and thickness of IZO 200-600 Pa / APC 30-300 Pa / IZO 200-600 Pa can be used, for example.

또는, ITO 200 내지 600Å/APC 30 내지 300Å/ITO 200 내지 600Å의 재료와 두께를 사용할 수 있다.Alternatively, a material and thickness of ITO 200 to 600 mV / APC 30 to 300 mV / ITO 200 to 600 mV can be used.

또한, 전극의 신뢰성을 더욱 개선하기 위해서는 ITO 1050 내지 1650Å/ APC 30 내지 300Å/ITO 1050 내지 1650Å의 재료와 두께를 사용할 수 있다. In addition, in order to further improve the reliability of the electrode, materials and thicknesses of ITO 1050 to 1650 mW / APC 30 to 300 mW / ITO 1050 to 1650 mW can be used.

제1 및 제2 디지타이저 전극(141, 143)은 증착, 특히 스퍼터링에 의해 형성될 수 있다. 스퍼터링 방법을 사용하면, 현재 상품화되어 있는 디지타이저에서와 같이 금속 박(foil)을 사용하여 형성하는 경우에 비하여 더 얇은 두께로 제1 및 제2 디지타이저 전극(141, 143)을 형성할 수 있다.The first and second digitizer electrodes 141, 143 may be formed by vapor deposition, in particular sputtering. Using the sputtering method, the first and second digitizer electrodes 141 and 143 can be formed to a thinner thickness than in the case of using a metal foil as in the digitizer currently commercialized.

한편, 디지타이저 전극의 패턴이 형성된 영역과 그렇지 않은 영역에서 반사율, 투과율 등의 차이로 패턴이 시인될 경우, 도면 상에 도시되지는 않았지만 전극과 유사한 형태를 갖는 더미 패턴을 형성하여 시인성을 개선할 수 있다.On the other hand, when the pattern is visually recognized due to a difference in reflectance, transmittance, etc. in the region where the pattern of the digitizer electrode is formed and the region where the pattern is not, the visibility may be improved by forming a dummy pattern having a shape similar to that of the electrode although not shown in the drawing. have.

한편, 상기에서는 송신부 전극이 금속 메시로 형성되고 수신부 전극이 삼중층 구조로 형성되는 것을 예로 들어 설명하였지만, 본 발명이 이에 제한되는 것은 아니며, 송신부 전극과 수신부 전극이 각각 상술한 다양한 재료와 구조로 형성될 수 있음은 물론이다. In the above description, the transmitter electrode is formed of a metal mesh and the receiver electrode is formed of a triple layer structure, but the present invention is not limited thereto. The transmitter electrode and the receiver electrode may be formed of the various materials and structures described above. Of course it can be formed.

절연층(142)은 유기 절연막 또는 무기 절연막으로 형성될 수 있다. The insulating layer 142 may be formed of an organic insulating film or an inorganic insulating film.

절연층(142)의 두께는 1 내지 5㎛일 수 있으며, 더 바람직하게는 1.5 내지 2.5㎛일 수 있다.The insulating layer 142 may have a thickness of 1 to 5 μm, more preferably 1.5 to 2.5 μm.

패시베이션층(144)의 소재로는 당해 기술분야에 알려진 절연 소재가 제한 없이 사용될 수 있으며, 실리콘 산화물과 같은 비금속 산화물이나 아크릴계 수지를 포함하는 감광성 수지 조성물 혹은 열경화성 수지 조성물이 사용될 수 있다. As the material of the passivation layer 144, an insulating material known in the art may be used without limitation, and a photosensitive resin composition or a thermosetting resin composition including a non-metal oxide or an acrylic resin such as silicon oxide may be used.

패시베이션층(144)은 예를 들면 폴리사이클로올레핀계 재질로 형성될 수 있으며, 0.5 내지 5㎛의 두께를 가질 수 있다.The passivation layer 144 may be formed of, for example, a polycycloolefin-based material, and may have a thickness of 0.5 to 5 μm.

또한, 패시베이션층(144)은 예를 들면 아크릴계 유기절연막 재질로 형성될 수 있으며, 0.5 내지 5㎛의 두께를 가질 수 있다.In addition, the passivation layer 144 may be formed of, for example, an acrylic organic insulating film material, and may have a thickness of 0.5 to 5 μm.

기재 필름(110)으로는 유연성 필름을 사용할 수 있으며, 특히 투명필름을 사용할 수 있다. As the base film 110, a flexible film may be used, and in particular, a transparent film may be used.

투명필름은 투명성, 기계적 강도, 열안정성이 우수한 필름이 사용될 수 있으며, 구체적인 예로는, 폴리에틸렌테레프탈레이트, 폴리에틸렌이소프탈레이트, 폴리에틸렌나프탈레이트, 폴리부틸렌테레프탈레이트 등의 폴리에스테르계 수지; 디아세틸셀룰로오스, 트리아세틸셀룰로오스 등의 셀룰로오스계 수지; 폴리카보네이트계 수지; 폴리메틸(메타)아크릴레이트, 폴리에틸(메타)아크릴레이트 등의 아크릴계 수지; 폴리스티렌, 아크릴로니트릴-스티렌 공중합체 등의 스티렌계 수지; 폴리에틸렌, 폴리프로필렌, 시클로계 또는 노보넨 구조를 갖는 폴리올레핀, 에틸렌-프로필렌 공중합체 등의 폴리올레핀계 수지; 염화비닐계 수지; 나일론, 방향족 폴리아미드 등의 아미드계 수지; 이미드계 수지; 폴리에테르술폰계 수지; 술폰계 수지; 폴리에테르에테르케톤계 수지; 황화 폴리페닐렌계 수지; 비닐알코올계 수지; 염화비닐리덴계 수지; 비닐부티랄계 수지; 알릴레이트계 수지; 폴리옥시메틸렌계 수지; 에폭시계 수지 등과 같은 열가소성 수지로 구성된 필름을 들 수 있으며, 상기 열가소성 수지의 블렌드물로 구성된 필름도 사용할 수 있다. 또한, (메타)아크릴계, 우레탄계, 아크릴우레탄계, 에폭시계, 실리콘계 등의 열경화형 수지 또는 자외선 경화형 수지로 된 필름을 이용할 수도 있다. As the transparent film, a film having excellent transparency, mechanical strength and thermal stability may be used. Specific examples thereof include polyester-based resins such as polyethylene terephthalate, polyethylene isophthalate, polyethylene naphthalate, and polybutylene terephthalate; Cellulose resins such as diacetyl cellulose and triacetyl cellulose; Polycarbonate resins; Acrylic resins such as polymethyl (meth) acrylate and polyethyl (meth) acrylate; Styrene resins such as polystyrene and acrylonitrile-styrene copolymers; Polyolefin-based resins such as polyethylene, polypropylene, cyclo-based or norbornene-structured polyolefins, ethylene-propylene copolymers; Vinyl chloride-based resins; Amide resins such as nylon and aromatic polyamides; Imide resin; Polyether sulfone resin; Sulfone resins; Polyether ether ketone resins; Sulfided polyphenylene resins; Vinyl alcohol-based resins; Vinylidene chloride-based resins; Vinyl butyral resin; Allyl resins; Polyoxymethylene resin; And films composed of thermoplastic resins such as epoxy resins, and the like, and films composed of blends of the above thermoplastic resins may also be used. Moreover, the film of thermosetting resin or ultraviolet curable resin, such as (meth) acrylic-type, urethane type, acrylurethane type, epoxy type, silicone type, can also be used.

이와 같은 투명필름의 두께는 적절히 결정할 수 있지만, 일반적으로는 강도나 취급성 등의 작업성, 박층성 등의 점에서 1 내지 500㎛ 정도이며, 1 내지 300㎛가 바람직하고, 5 내지 200㎛가 보다 바람직하다.Although the thickness of such a transparent film can be suitably determined, it is generally about 1-500 micrometers in terms of workability, thinness, etc., such as intensity | strength and handleability, and 1-300 micrometers is preferable, and 5-200 micrometers is More preferred.

이러한 투명필름은 적절한 1종 이상의 첨가제가 함유된 것일 수도 있다. 첨가제로는, 예컨대 자외선흡수제, 산화방지제, 윤활제, 가소제, 이형제, 착색방지제, 난연제, 대전방지제, 안료, 착색제 등을 들 수 있다. 상기 투명 필름은 필름의 일면 또는 양면에 하드코팅층, 반사방지층, 가스배리어층과 같은 다양한 기능성층을 포함하는 구조일 수 있으며, 기능성층은 전술한 것으로 한정되는 것은 아니며, 용도에 따라 다양한 기능성층을 포함할 수 있다.Such a transparent film may contain an appropriate one or more additives. As an additive, a ultraviolet absorber, antioxidant, a lubricating agent, a plasticizer, a mold release agent, a coloring agent, a flame retardant, an antistatic agent, a pigment, a coloring agent, etc. are mentioned, for example. The transparent film may have a structure including various functional layers such as a hard coating layer, an antireflection layer, and a gas barrier layer on one or both surfaces of the film, and the functional layer is not limited to the above-described ones. It may include.

또한, 필요에 따라 투명필름은 표면 처리된 것일 수 있다. 이러한 표면 처리로는 플라즈마 처리, 코로나 처리, 프라이머 처리 등의 건식 처리, 검화 처리를 포함하는 알칼리 처리 등의 화학 처리 등을 들 수 있다.In addition, the transparent film may be surface-treated as needed. Such surface treatments include dry treatments such as plasma treatments, corona treatments, primer treatments, and chemical treatments such as alkali treatments including saponification treatments.

터치센서층(120)은 정전용량 방식 터치센서에 사용되는 전극 패턴의 구조를 가지며, 상호 정전용량 방식(mutual-capacitive type) 또는 자기 정전용량 방식(self-capacitive type)이 적용될 수 있다. The touch sensor layer 120 has a structure of an electrode pattern used in a capacitive touch sensor, and a mutual capacitive type or a self-capacitive type may be applied.

상호 정전용량 방식일 경우, 가로축과 세로축의 격자 전극구조일 수 있다. 가로축과 세로축의 전극의 교차점에는 브리지 전극을 포함할 수 있다.In the case of the mutual capacitance type, the grid electrode structure may be a horizontal axis and a vertical axis. The intersection electrode of the horizontal axis and the vertical axis may include a bridge electrode.

자기 정전용량 방식일 경우, 각 지점의 한 개의 전극을 사용해 정전용량 변화를 읽어내는 방식의 전극 패턴 구조를 가질 수 있다. In the case of the self capacitance method, an electrode pattern structure of a method of reading capacitance change using one electrode at each point may be provided.

터치센서층(120)의 전극은 금속, 금속 산화물, 금속 메시, 금속 나노와이어, 탄소 나노튜브, 그래핀, 전도성 고분자 및 도전성 잉크에서 선택된 하나 이상의 물질로 형성될 수 있다.The electrode of the touch sensor layer 120 may be formed of one or more materials selected from metals, metal oxides, metal meshes, metal nanowires, carbon nanotubes, graphene, conductive polymers, and conductive inks.

패시베이션층(130)은 예를 들면 폴리사이클로올레핀계 재질로 형성될 수 있으며, 0.5 내지 5㎛의 두께를 가질 수 있다.The passivation layer 130 may be formed of, for example, a polycycloolefin-based material, and may have a thickness of 0.5 to 5 μm.

본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저는 유연성 기재 필름을 사용하고 단일 유연성 기재 필름 상에 터치센서와 디지타이저를 차례로 적층하므로 박막화를 달성하고 내굴곡성을 얻을 수 있어 유연성 표시 장치에 적용할 수 있다. 또한, 터치센서 상부에 디지타이저가 위치하여 펜과의 거리가 가까워지므로 디지타이저의 필압 감지 수준이 향상된다.The touch sensor-integrated digitizer according to the first embodiment of the present invention uses a flexible base film and sequentially stacks the touch sensor and the digitizer on a single flexible base film, thereby achieving thinning and obtaining flex resistance, which can be applied to a flexible display device. Can be. In addition, since the digitizer is located on the upper part of the touch sensor, the distance from the pen is closer, so that the pressure sensitivity of the digitizer is improved.

한편, 디지타이저 모듈을 터치센서의 상부에 형성하는 대신 디지타이저모듈을 먼저 형성하고 그 위에 터치센서를 형성할 수도 있다. Meanwhile, instead of forming the digitizer module on the touch sensor, the digitizer module may be formed first and the touch sensor may be formed thereon.

도 2는 본 발명의 제2 실시예에 따른 터치센서 일체형 디지타이저의 단면도이다.2 is a cross-sectional view of a touch sensor integrated digitizer according to a second embodiment of the present invention.

도 2를 참조하면, 본 발명의 제2 실시예에 따른 터치센서 일체형 디지타이저(20)는 기재 필름(210), 기재 필름(210) 상부의 디지타이저 모듈(240), 디지타이저 모듈(240) 상의 터치센서층(220), 터치센서층(220) 상부의 패시베이션층(230)을 포함하여 이루어진다.Referring to FIG. 2, the touch sensor integrated digitizer 20 according to the second embodiment of the present invention may include a base film 210, a digitizer module 240 on the base film 210, and a touch sensor on the digitizer module 240. The layer 220 includes a passivation layer 230 on the touch sensor layer 220.

디지타이저 모듈(240)은 제1 디지타이저 전극(241), 제1 디지타이저 전극(241) 상의 절연층(242), 절연층(242) 상의 제2 디지타이저 전극(243) 및 제2 디지타이저 전극(143) 상의 패시베이션층(244)을 포함한다.The digitizer module 240 is disposed on the first digitizer electrode 241, the insulating layer 242 on the first digitizer electrode 241, the second digitizer electrode 243 and the second digitizer electrode 143 on the insulating layer 242. Passivation layer 244.

제1 및 제2 디지타이저 전극(241, 243) 중 하나는 송신부 디지타이저 전극으로 다른 하나는 수신부 디지타이저 전극으로 사용될 수 있다.One of the first and second digitizer electrodes 241 and 243 may be used as the transmitter digitizer electrode, and the other may be used as the receiver digitizer electrode.

본 발명의 제2 실시예에 따른 터치센서 일체형 디지타이저(20)에 포함되는 각 구성요소에 대한 구체적인 사항은 도 1을 참조하여 설명한 본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저(10)와 유사하므로 이에 대한 자세한 설명을 생략한다. Details of each component included in the touch sensor integrated digitizer 20 according to the second embodiment of the present invention and the touch sensor integrated digitizer 10 according to the first embodiment of the present invention described with reference to FIG. Since it is similar, detailed description thereof will be omitted.

본 발명의 제2 실시예에 따른 터치센서 일체형 디지타이저 또한 본 발명의 제1 실시예에서와 같이 유연성 기재 필름을 사용하고 단일 유연성 기재 필름 상에 터치센서와 디지타이저를 차례로 적층하므로 박막화를 달성하고 내굴곡성을 얻을 수 있어 유연성 표시 장치에 적용할 수 있다. The touch sensor integrated digitizer according to the second embodiment of the present invention also uses the flexible base film as in the first embodiment of the present invention, and sequentially laminates the touch sensor and the digitizer on a single flexible base film, thereby achieving thinning and flex resistance. Can be applied to the flexible display device.

한편, 본 발명의 제2 실시예에 따른 터치센서 일체형 디지타이저에서는 디지타이저가 터치센서 하부에 위치하지만, 터치센서가 별도의 기재 없이 디지타이저 상에 박층으로 적층되므로 종래기술의 디지타이저와 비교하면 디지타이저와 펜과의 거리가 가까워지므로 디지타이저의 필압 감지 수준이 향상되는 효과 또한 얻을 수 있다.Meanwhile, in the touch sensor-integrated digitizer according to the second embodiment of the present invention, the digitizer is located under the touch sensor, but since the touch sensor is laminated in a thin layer on the digitizer without a separate description, the digitizer and the pen are compared with the digitizer of the prior art. As the distance of N is closer, the pressure sensitivity of the digitizer can be improved.

또는, 디지타이저 모듈을 두 개의 서브모듈로 분리하여 각각 터치센서의 상부 및 하부에 배치할 수도 있다.Alternatively, the digitizer module may be divided into two sub modules and disposed on the upper and lower portions of the touch sensor, respectively.

도 3은 디지타이저 모듈을 두 개의 서브모듈로 분리하고 이 중 수신 모듈을 터치센서의 상부에 배치한 본 발명의 제3 실시예에 따른 터치센서 일체형 디지타이저의 단면도이다.3 is a cross-sectional view of a touch sensor integrated digitizer according to a third embodiment of the present invention in which a digitizer module is divided into two sub-modules and a receiving module is disposed above the touch sensor.

도 3을 참조하면, 본 발명의 제3 실시예에 따른 터치센서 일체형 디지타이저(30)는 기재 필름(310), 기재 필름(310) 상부의 제1 패시베이션층(342), 제1 패시베이션층(342) 상부의 제1 디지타이저 전극(341), 제1 디지타이저 전극(341) 상부의 터치센서층(320), 터치센서층(320) 상부의 제2 디지타이저 전극(343), 제2 디지타이저 전극(343) 상부의 제2 패시베이션층(344)을 포함하여 이루어진다.Referring to FIG. 3, the touch sensor integrated digitizer 30 according to the third embodiment of the present invention may include a base film 310, a first passivation layer 342 on the base film 310, and a first passivation layer 342. The first digitizer electrode 341 on the upper side, the touch sensor layer 320 on the first digitizer electrode 341, the second digitizer electrode 343 and the second digitizer electrode 343 on the touch sensor layer 320. And an upper second passivation layer 344.

제1 및 제2 디지타이저 전극(241, 243) 중 하나는 송신부 디지타이저 전극으로 다른 하나는 수신부 디지타이저 전극으로 사용될 수 있다.One of the first and second digitizer electrodes 241 and 243 may be used as the transmitter digitizer electrode, and the other may be used as the receiver digitizer electrode.

본 발명의 제3 실시예에 따른 터치센서 일체형 디지타이저(30)에 포함되는 각 구성요소에 대한 구체적인 사항은 도 1을 참조하여 설명한 본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저(10)와 유사하므로 이에 대한 자세한 설명을 생략한다. Details of each component included in the touch sensor integrated digitizer 30 according to the third embodiment of the present invention and the touch sensor integrated digitizer 10 according to the first embodiment of the present invention described with reference to FIG. Since it is similar, detailed description thereof will be omitted.

본 발명의 제3 실시예에 따른 터치센서 일체형 디지타이저 또한 본 발명의 제1 실시예에서와 같이 유연성 기재 필름을 사용하고 단일 유연성 기재 필름 상에 터치센서와 디지타이저를 차례로 적층하므로 박막화를 달성하고 내굴곡성을 얻을 수 있어 유연성 표시 장치에 적용할 수 있다. The touch sensor integrated digitizer according to the third embodiment of the present invention also uses the flexible base film as in the first embodiment of the present invention, and sequentially laminates the touch sensor and the digitizer on a single flexible base film, thereby achieving thinning and bending resistance. Can be applied to the flexible display device.

한편, 본 발명의 제3 실시예에 따른 터치센서 일체형 디지타이저(30)에서는 터치센서층(320) 상부에 위치하는 제2 디지타이저 전극(343)을 수신부 디지타이저 전극으로 사용함으로써 디지타이저와 펜과의 거리를 매우 가깝게 할 수 있으며, 이에 따라 디지타이저의 필압 감지 수준을 향상시킬 수 있다.Meanwhile, in the touch sensor-integrated digitizer 30 according to the third embodiment of the present invention, the distance between the digitizer and the pen is determined by using the second digitizer electrode 343 positioned on the touch sensor layer 320 as the receiver digitizer electrode. It can be very close, which improves the pressure sensitivity of the digitizer.

본 발명의 실시예에 따른 컬러필터 일체형 유연성 터치센서는 표시장치용으로 사용되기 위하여 표시층과 결합될 수 있다. The color filter integrated flexible touch sensor according to the exemplary embodiment of the present invention may be combined with the display layer to be used for the display device.

도 4는 본 발명의 일 실시예에 따른 표시장치의 단면도이다.4 is a cross-sectional view of a display device according to an exemplary embodiment of the present invention.

도 4를 참조하면, 본 발명의 일 실시예에 따른 표시장치는 상술한 바와 같은 본 발명의 제1 실시예에 따른 터치센서 일체형 디지타이저(10) 및 터치센서 일체형 디지타이저(10) 하부의 표시층(40)을 포함하여 이루어진다.Referring to FIG. 4, the display device according to the exemplary embodiment of the present invention includes the touch sensor integrated digitizer 10 and the touch layer integrated touch sensor digitizer 10 according to the first embodiment of the present invention. 40).

표시층(40)으로는 유연성 표시장치에 적용할 수 있는 것을 제한 없이 사용할 수 있으며, 예를 들면, OLED층이거나 LCD층일 수 있다. As the display layer 40, any one applicable to the flexible display device may be used without limitation. For example, the display layer 40 may be an OLED layer or an LCD layer.

한편, 도면 상에 도시하지는 않았지만 표시층(40) 하부에 차폐층을 더 포함할 수 있다. Although not shown in the drawings, a shielding layer may be further included below the display layer 40.

이상에서 본 발명의 바람직한 실시예에 대하여 도면을 참조하여 설명하였다. 그러나, 본 발명은 상술한 실시예에 한정되는 것은 아니며, 본 발명의 본질적인 특성에서 벗어나지 않는 범위에서 변형된 형태로 본 발명이 구현될 수 있음을 이해할 수 있을 것이다. 상술한 본 발명의 실시예들은 독립적으로 또는 그 특징들의 일부 또는 전부를 조합하여 적용될 수 있다. The preferred embodiment of the present invention has been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and it will be understood that the present invention can be implemented in a modified form without departing from the essential characteristics of the present invention. The above-described embodiments of the present invention may be applied independently or in combination with some or all of its features.

그러므로, 본 발명의 범위는 전술한 설명이 아니라 특허청구범위에 의해 정해지며, 그와 동등한 범위 내에 있는 모든 차이점은 본 발명에 포함되는 것으로 해석되어야 할 것이다.Therefore, the scope of the present invention is defined by the claims rather than the foregoing description, and all differences within the scope will be construed as being included in the present invention.

[부호의설명][Description of the code]

10, 20, 30: 터치센서 일체형 디지타이저10, 20, 30: Digitizer with integrated touch sensor

40: 표시층40: display layer

110, 210, 310: 기재 필름110, 210, 310: base film

120, 220, 320: 터치센서층120, 220, 320: touch sensor layer

130, 144, 230, 244, 342, 344: 패시베이션층130, 144, 230, 244, 342, 344: passivation layer

140, 240, 340: 디지타이저 모듈140, 240, 340: Digitizer Module

141, 241, 341: 제1 디지타이저 전극141, 241, and 341: first digitizer electrode

142, 242: 절연층142 and 242: insulation layer

143, 243, 343: 제2 디지타이저 전극143, 243, and 343: second digitizer electrode

Claims (16)

유연성 기재 필름;Flexible base film; 상기 유연성 기재 필름 상부의 터치센서층;A touch sensor layer on the flexible base film; 상기 터치센서층 상부의 제1 패시베이션층;A first passivation layer on the touch sensor layer; 상기 제1 패시베이션층 상부의 제1 디지타이저 전극;A first digitizer electrode on the first passivation layer; 상기 제1 디지타이저 전극 상부의 절연층; An insulating layer on the first digitizer electrode; 상기 절연층 상부의 제2 디지타이저 전극; 및A second digitizer electrode on the insulating layer; And 상기 제2 디지타이저 전극 상부의 제2 패시베이션층을 포함하며,A second passivation layer on the second digitizer electrode, 상기 제1 및 제2 디지타이저 전극은 2000Å 내지 1㎛의 두께를 갖는 터치센서 일체형 디지타이저. The first and second digitizer electrode is a touch sensor integrated digitizer having a thickness of 2000 ~ 1㎛. 유연성 기재 필름;Flexible base film; 상기 유연성 기재 필름 상부의 제1 디지타이저 전극;A first digitizer electrode on the flexible base film; 상기 제1 디지타이저 전극 상부의 절연층; An insulating layer on the first digitizer electrode; 상기 절연층 상부의 제2 디지타이저 전극; A second digitizer electrode on the insulating layer; 상기 제2 디지타이저 전극 상부의 제1 패시베이션층;A first passivation layer on the second digitizer electrode; 상기 제1 패시베이션층 상부의 터치센서층; 및A touch sensor layer on the first passivation layer; And 상기 터치센서층 상부의 제2 패시베이션층을 포함하며,A second passivation layer on the touch sensor layer; 상기 제1 및 제2 디지타이저 전극은 2000Å 내지 1㎛의 두께를 갖는 터치센서 일체형 디지타이저. The first and second digitizer electrode is a touch sensor integrated digitizer having a thickness of 2000 ~ 1㎛. 유연성 기재 필름;Flexible base film; 상기 유연성 기재 필름 상부의 제1 패시베이션층;A first passivation layer over the flexible base film; 상기 제1 패시베이션층 상부의 제1 디지타이저 전극;A first digitizer electrode on the first passivation layer; 상기 제1 디지타이저 전극 상부의 터치센서층; A touch sensor layer on the first digitizer electrode; 상기 터치센서층 상부의 제2 디지타이저 전극; 및A second digitizer electrode on the touch sensor layer; And 상기 제2 디지타이저 전극 상부의 제2 패시베이션층을 포함하며,A second passivation layer on the second digitizer electrode, 상기 제1 및 제2 디지타이저 전극은 2000Å 내지 1㎛의 두께를 갖는 터치센서 일체형 디지타이저. The first and second digitizer electrode is a touch sensor integrated digitizer having a thickness of 2000 ~ 1㎛. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 제1 및 제2 디지타이저 전극은 3000 내지 8000Å의 두께를 갖는 터치센서 일체형 디지타이저. The first and second digitizer electrode is a touch sensor integrated digitizer having a thickness of 3000 to 8000 Å. 제1항 내지 제3항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 제1 및 제2 디지타이저 전극 중 하나는 송신부 전극이며, 상기 제1 및 제2 디지타이저 전극 중 다른 하나는 수신부 전극인 터치센서 일체형 디지타이저. The touch sensor integrated digitizer, wherein one of the first and second digitizer electrodes is a transmitter electrode, and the other of the first and second digitizer electrodes is a receiver electrode. 제5항에 있어서,The method of claim 5, 상기 송신부 전극은 금속 메시로 이루어지는 터치센서 일체형 디지타이저. The transmitter electrode is a touch sensor integrated digitizer made of a metal mesh. 제6항에 있어서,The method of claim 6, 상기 송신부 전극은 APC로 이루어지는 터치센서 일체형 디지타이저. The transmitter electrode is a touch sensor integrated digitizer made of APC. 제6항에 있어서,The method of claim 6, 상기 송신부 전극은 1 내지 10㎛의 선폭을 갖는 터치센서 일체형 디지타이저. The transmitter electrode is a touch sensor integrated digitizer having a line width of 1 to 10㎛. 제5항에 있어서,The method of claim 5, 상기 수신부 전극은 투명 전도성 재료를 포함하는 터치센서 일체형 디지타이저. The receiver electrode is a touch sensor integrated digitizer comprising a transparent conductive material. 제9항에 있어서,The method of claim 9, 상기 수신부 전극은 투과율이 75% 이상인 터치센서 일체형 디지타이저.The receiver electrode is a touch sensor integrated digitizer having a transmittance of 75% or more. 제9항에 있어서,The method of claim 9, 상기 수신부 전극은 2개 이상의 층을 갖는 구조로 이루어지는 터치센서 일체형 디지타이저. The receiver electrode is a touch sensor integrated digitizer consisting of a structure having two or more layers. 제11항에 있어서,The method of claim 11, 상기 수신부 전극은 ITO/APC/ITO 또는 IZO/APC/IZO의 삼중층 구조로 이루어지는 터치센서 일체형 디지타이저. The receiver electrode is a touch sensor integrated digitizer consisting of a triple layer structure of ITO / APC / ITO or IZO / APC / IZO. 제3항에 있어서, The method of claim 3, 상기 제2 디지타이저 전극은 수신부 전극인 터치센서 일체형 디지타이저.The second digitizer electrode is a touch sensor integrated digitizer electrode. 제1항 내지 제3항 중 어느 한 항의 터치센서 일체형 디지타이저; 및The touch sensor integrated digitizer of any one of claims 1 to 3; And 상기 터치센서 일체형 디지타이저 하부의 표시층을 포함하는 유연성 표시 장치.And a display layer under the touch sensor integrated digitizer. 제14항에 있어서, The method of claim 14, 상기 표시층 하부의 차폐층을 더 포함하는 유연성 표시 장치.And a shielding layer under the display layer. 제14항에 있어서, The method of claim 14, 상기 표시층은 LCD층 또는 OLED층인 유연성 표시 장치.And the display layer is an LCD layer or an OLED layer.
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