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WO2011162076A1 - Elément de filtre coloré pour papier électronique, papier électronique et procédés de production de ces produits - Google Patents

Elément de filtre coloré pour papier électronique, papier électronique et procédés de production de ces produits Download PDF

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Publication number
WO2011162076A1
WO2011162076A1 PCT/JP2011/062527 JP2011062527W WO2011162076A1 WO 2011162076 A1 WO2011162076 A1 WO 2011162076A1 JP 2011062527 W JP2011062527 W JP 2011062527W WO 2011162076 A1 WO2011162076 A1 WO 2011162076A1
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WO
WIPO (PCT)
Prior art keywords
layer
color filter
electronic paper
filter member
substrate
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/JP2011/062527
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English (en)
Japanese (ja)
Inventor
浩和 西條
大悟 森住
達也 坪井
千明 小幡
太郎 森本
勇樹 熊谷
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.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Publication of WO2011162076A1 publication Critical patent/WO2011162076A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1677—Structural association of cells with optical devices, e.g. reflectors or illuminating devices

Definitions

  • the present invention relates to a color filter member for electronic paper capable of obtaining good color display characteristics when used in electronic paper.
  • This medium encloses a display medium such as a microcapsule between opposing substrates and electrically switches the display.
  • a display medium such as a microcapsule between opposing substrates and electrically switches the display.
  • excellent characteristics such as low power consumption, bendable flexibility, thin and light, etc. Therefore, it has the outstanding feature of being rewritable and is entering the practical application stage.
  • a method for coloring the display medium itself has been proposed as a means for performing color display with the electronic paper described above.
  • this method it is difficult to disperse the display medium particles uniformly and drive them stably, so that they have not been put into practical use.
  • the present invention has been made in view of the above circumstances, and has as its main object to provide a color filter member for electronic paper that can obtain good color display characteristics when used in electronic paper. is there.
  • the present invention is used in electronic paper in which a display medium layer is disposed between two opposing substrates, at least one of which is transparent, and the display medium layer displays predetermined information.
  • a color filter member for electronic paper, the color filter base material, a color filter layer formed on one surface side of the color filter base material and having a plurality of colored layers, and at least one of the color filter base materials The color filter member for electronic paper characterized by having the barrier layer arrange
  • the display medium of electronic paper can be protected from moisture, oxygen, etc., and has excellent color display characteristics.
  • Electronic paper can be obtained.
  • the optical functional layer or the surface protective layer is disposed on the outermost surface opposite to the side on which the display portion of the electronic paper is disposed.
  • the color filter member for electronic paper of the present invention is used for electronic paper, visibility can be improved by having an optical functional layer, and scratches and dirt on the surface of electronic paper can be achieved by having a surface protective layer. It is because it can prevent.
  • the touch panel layer may be disposed on the side opposite to the side on which the display unit of the electronic paper is disposed with respect to the color filter substrate and the color filter layer.
  • the transparent electrode layer may be disposed on the side where the display unit of the electronic paper is disposed with respect to the color filter substrate.
  • the display medium layer may be arranged on the side where the counter electrode substrate of the electronic paper is arranged with respect to the transparent electrode layer.
  • the present invention also provides a color filter base material, a color filter layer formed on one surface side of the color filter base material and having a plurality of colored layers, and at least one surface side of the color filter base material
  • a color filter member for electronic paper having a barrier layer disposed on the substrate, a transparent electrode layer, a display medium layer, and a counter electrode substrate having a counter substrate and a counter electrode layer formed on the counter substrate.
  • the electronic paper color filter member is disposed on one surface of the electronic paper, the counter electrode substrate is disposed on the other surface of the electronic paper, and the transparent electrode layer is The color filter substrate is disposed on the counter electrode substrate side, and the display medium layer is disposed on the counter electrode substrate side with respect to the transparent electrode layer.
  • the counter electrode layer, with respect to the counter substrate providing an electronic paper, characterized in that disposed in the display medium layer side.
  • the color filter member for electronic paper having a barrier layer since the color filter member for electronic paper having a barrier layer is used, the electronic paper display unit can be protected from moisture, oxygen, and the like, and the electronic paper has excellent color display characteristics. Can do. Further, the color filter member for electronic paper used in the present invention can reduce the number of base materials of the constituent layers, so that the electronic paper can be made thinner and the number of interfaces can be reduced. Optical characteristics can be improved.
  • the present invention provides a color filter substrate, a color filter layer formed on one surface side of the color filter substrate, and provided with a plurality of colored layers, and disposed on at least one surface side of the color filter substrate.
  • a method for producing a color filter member for electronic paper comprising a step of forming a color filter member for electronic paper having a barrier layer formed thereon by a roll-to-roll method. .
  • a color filter member for electronic paper with high productivity can be obtained by forming a color filter member for electronic paper that does not require high positional accuracy of each constituent layer by a roll-to-roll method. .
  • the electronic paper color filter member forming step includes aligning the touch panel layer under vacuum by a sheet-to-sheet method, or laminating the touch panel layer with alignment by a sheet-to-sheet method. It is preferable to have a touch panel layer lamination process.
  • the touch panel layer needs alignment with the color filter layer, but alignment is adjusted by having the touch panel layer stacking step. A color filter member for electronic paper having a touch panel function and good color display characteristics when used for electronic paper can be obtained.
  • the present invention provides a color filter member forming step for forming an electronic paper color filter member by a roll-to-roll method, a transparent electrode layer and a display medium layer on the electronic paper color filter member.
  • the display medium layer is formed so that the display medium layer is disposed on one surface of the color filter member for electronic paper via the transparent electrode layer, thereby forming a color filter member for electronic paper with a display unit.
  • the counter electrode layer is on the display medium layer side of the color filter member for electronic paper with a display unit with respect to the counter substrate.
  • a method of manufacturing an electronic paper characterized in that it comprises a bonding step of aligning and bonding under vacuum by a sheet-to-sheet method.
  • a color filter member for electronic paper that does not require high positional accuracy of each constituent layer is formed by a roll-to-roll method, and a color filter member for electronic paper with a display unit that requires precise alignment.
  • the counter electrode substrate are bonded by vacuum alignment bonding using a sheet-to-sheet method, whereby highly accurate and highly productive electronic paper can be obtained.
  • the electronic paper excellent in the color display characteristic can be obtained by using the said color filter member for electronic paper.
  • the color filter member for electronic paper of the present invention is used for electronic paper in which a display medium layer is disposed between two opposing substrates, at least one of which is transparent, and the display medium layer displays predetermined information.
  • a color filter member for electronic paper comprising: a color filter base material; a color filter layer formed on one surface side of the color filter base material, comprising a plurality of colored layers; and at least one of the color filter base materials And a barrier layer disposed on the surface side.
  • FIG. 1 is a schematic cross-sectional view showing an example of a color filter member for electronic paper according to the present invention.
  • the color filter member 10 for electronic paper illustrated in FIG. 1 is a color filter that is formed on one surface side of the color filter substrate 1 and the color filter substrate 1 and includes a plurality of colored layers (2R, 2G, 2B). It has the layer 2 and the barrier layer 3 arrange
  • the barrier layer 3, the color filter substrate 1, and the color filter layer 2 are laminated in this order, and when the color filter member 10 for electronic paper shown in FIG. 1 is used for electronic paper, the color filter layer 2 side An electronic paper display unit is disposed on the screen.
  • the display portion of the electronic paper can be protected from moisture, oxygen, etc., and has excellent color display characteristics.
  • Electronic paper can be obtained.
  • Color filter layer used for this invention is formed in the one surface side of a color filter base material, and is provided with a some colored layer.
  • “formed on one surface side of the color filter substrate” means not only when it is directly formed on one surface of the color filter substrate but also on one surface of the color filter substrate. It is a concept including the case where it forms through another layer.
  • the plurality of colored layers contained in the color filter layer are not particularly limited as long as they can produce a desired color when electronic paper is produced using the color filter member for electronic paper of the present invention. Instead, it is possible to use colored layers of respective colors used in general color filters. Among them, in the present invention, a plurality of colored layers composed of three colors of red (R), green (G), and blue (B) are usually used.
  • the plurality of colored layers used in the present invention are usually formed in a pattern so that a plurality of colors are regularly arranged, but the pattern employed in the present invention is not particularly limited, and It can select suitably according to the use etc. of the color filter member for electronic paper of invention. Examples of such a pattern include a stripe type, a mosaic type, a triangle type, and a 4-pixel arrangement type. Moreover, the area of each colored layer is not specifically limited at this time, It adjusts suitably according to the resolution etc. of the electronic paper manufactured using the color filter member for electronic paper of this invention.
  • the material of the colored layer can be the same as that used for a colored layer of a general color filter, and thus description thereof is omitted here.
  • the thickness of the colored layer used in the present invention is not particularly limited as long as a good image display can be performed when the color filter member for electronic paper of the present invention is used in electronic paper. Specifically, it can be set within a range of 0.5 ⁇ m to 3.0 ⁇ m.
  • the method for forming the colored layer is not particularly limited as long as the colored layer having a desired thickness can be formed without color mixing.
  • a method generally known methods such as a photolithography method and an ink jet method can be used.
  • the color filter layer used in the present invention has at least the above-described colored layer, but may have a configuration other than the above colored layer as necessary.
  • Such other configurations are not particularly limited, and those having an arbitrary function can be used according to the use of the color filter member for electronic paper of the present invention.
  • Examples of such another configuration include a light shielding portion formed between the colored layers in order to partition the pixels.
  • the light-shielding portion can be the same as that used in a general color filter, and thus description thereof is omitted here.
  • Color filter base material The color filter base material used for this invention supports the layer which comprises the color filter member for electronic paper of this invention, such as the said color filter layer.
  • Such a color filter substrate is not particularly limited as long as it has a desired transparency, and the same transparent substrate used for general color filters can be used. .
  • permeability in visible region is 80% or more, and, as for the color filter base material used for this invention, it is more preferable that it is 90% or more. This is because, when the transmittance is in the above range, when the color filter member for electronic paper of the present invention is used for electronic paper, it is possible to prevent a decrease in display luminance.
  • the transmittance of the color filter substrate can be measured according to JIS K7361-1 (Plastic—Testing method of total light transmittance of transparent material).
  • the color filter substrate used in the present invention may be a transparent rigid substrate having no flexibility such as a glass substrate, or a transparent flexible substrate having flexibility such as a resin film substrate. It may be a substrate. Especially, in this invention, it is preferable to use a transparent flexible base material. This is because the color filter member for electronic paper of the present invention can be manufactured by a roll-to-roll method by using a transparent flexible substrate.
  • the resin film substrate examples include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyethersulfone (PES), polyimide (PI), polyetheretherketone (PEEK), polycarbonate (PC), Polyethylene (PE), polypropylene (PP), polyphenylene sulfide (PPS), polyetherimide (PEI), cellulose triacetate (CTA), cyclic polyolefin (COP), polymethyl methacrylate (PMMA), polysulfone (PSF), polyamideimide ( PAI) and the like.
  • PET polyethylene terephthalate
  • PEN polyethylene naphthalate
  • PES polyethersulfone
  • PI polyetheretherketone
  • PC polycarbonate
  • PE Polyethylene
  • PE polypropylene
  • PPS polyphenylene sulfide
  • PEI polyetherimide
  • CTA cyclic polyolefin
  • COP cyclic polyolefin
  • PMMA polymethyl meth
  • the thickness of the color filter substrate used in the present invention is not particularly limited, and may be appropriately adjusted according to the use of the color filter member for electronic paper of the present invention. Specifically, the thickness of the color filter substrate is preferably in the range of 10 ⁇ m to 500 ⁇ m. If the thickness of the color filter substrate is too thin, there may be a problem in strength. If the thickness of the color filter substrate is too thick, the electronic paper using the color filter member for electronic paper of the present invention is thin information. This is because it may be difficult to obtain a display panel.
  • barrier layer used in the present invention is disposed on at least one surface side of the color filter substrate, and when the color filter member for electronic paper of the present invention is used in electronic paper, the display portion of the electronic paper is It protects against moisture and oxygen.
  • “arranged on at least one surface side of the color filter substrate” means not only the case where it is directly disposed on at least one surface of the color filter substrate, but also at least one of the color filter substrates. It is a concept including the case where it arrange
  • the barrier layer used in the present invention may be disposed on the surface side where the color filter layer of the color filter substrate is formed, or disposed on the surface side where the color filter layer of the color filter substrate is not formed. Also good.
  • the material of the barrier layer used in the present invention may be any material as long as it can exhibit a barrier property against moisture, oxygen, etc. and has transparency, for example, silicon oxide, silicon nitride, silicon carbide, oxidized Titanium, niobium oxide, indium oxide, zinc oxide, tin oxide, tantalum oxide, aluminum oxide, magnesium oxide, calcium oxide, zirconium oxide, and the like can be used, but silicon oxide is usually used.
  • the thickness of the barrier layer is not particularly limited as long as it exhibits a barrier property, and is appropriately selected according to the material and transparency of the barrier layer. Specifically, the thickness of the barrier layer is preferably in the range of 10 nm to 3000 nm. This is because if the thickness of the barrier layer is too thin, it is difficult to obtain desired barrier properties. On the other hand, if the barrier layer is too thick, the barrier layer may be cracked, and the transparency of the barrier layer may be impaired.
  • Examples of the method for forming the barrier layer used in the present invention include a sputtering method, a vacuum evaporation method, a plasma CVD method, and the like.
  • the barrier layer used in the present invention may be arranged alone on at least one surface side of the color filter base material, and as a barrier layer laminate in which the barrier layer is formed on the barrier layer base material, It may be arranged on at least one surface side of the filter substrate.
  • the barrier layer base material used in the present invention the same color filter base material as described above can be used.
  • the thickness of the barrier layer substrate is not particularly limited as long as the barrier layer can be supported, but is preferably in the range of 5 ⁇ m to 500 ⁇ m.
  • the said barrier layer laminated body is bonded together to the said color filter layer or the said color filter base material normally using the adhesion layer which consists of an adhesive material.
  • the adhesive layer may be formed on the barrier layer side of the barrier layer laminate, or may be formed on the barrier layer substrate side of the barrier layer laminate.
  • the adhesive material may be any material that can be bonded with a desired strength and has transparency.
  • the thickness of the adhesive layer is not particularly limited as long as it can be bonded so that the barrier layer laminate is not peeled off. Specifically, it can be set within a range of 5 ⁇ m to 50 ⁇ m. it can.
  • a thin glass plate having a thickness of 150 ⁇ m or less may be used. By using thin glass, it becomes unnecessary to form a barrier layer. Further, since the thickness of the thin glass is 150 ⁇ m or less, it is possible to laminate by a roll-to-roll method.
  • the thickness of the thin glass may be 150 ⁇ m or less, but in particular, it is preferably in the range of 20 ⁇ m to 120 ⁇ m, and more preferably in the range of 50 ⁇ m to 100 ⁇ m.
  • soda lime glass, alkali-free glass, quartz glass and the like can be used, and alkali-free glass is preferable among them.
  • the thin glass can also serve as a color filter base material, in the color filter member for electronic paper of the present invention, the thickness of the color filter base material Or can be substituted for the color filter substrate.
  • the color filter layer is preferably disposed on the outermost surface on the side where the display unit of electronic paper is disposed. This is because the display characteristics of the electronic paper using the electronic paper color filter member of the present invention can be improved by bringing the color filter layer and the display portion closer to each other.
  • the order of stacking the color filter base material and the barrier layer is not limited.
  • the barrier layer is disposed on the outermost surface on the side where the display portion of the electronic paper is disposed, the display portion can be protected from impurities generated from the color filter layer.
  • the layer structure of such a color filter member for electronic paper has an aspect (first aspect) having only the barrier layer and a barrier layer laminate (barrier layer and barrier layer base material) according to the form of the barrier layer. It can be divided into three modes: a mode (second mode) and a mode having a thin glass plate (third mode).
  • first aspect having only the barrier layer and a barrier layer laminate (barrier layer and barrier layer base material) according to the form of the barrier layer. It can be divided into three modes: a mode (second mode) and a mode having a thin glass plate (third mode).
  • the 1st aspect of the layer structure of the color filter member for electronic paper of this invention is an aspect which has only a barrier layer as a barrier layer, and does not have a barrier layer base material.
  • the barrier layer 3, the color filter substrate 1, and the color filter layer 2 may be in this order.
  • the order may be the order of the barrier layer and the color filter layer, or the order of the color filter substrate, the color filter layer and the barrier layer.
  • the left side is the side that is the outermost surface of the electronic paper, and the right side is the side on which the display unit of the electronic paper is arranged.
  • the color filter layer is preferably disposed on the outermost surface on the side where the display unit of the electronic paper is disposed.
  • the barrier layer is a plurality of layers.
  • the layer structure in that case may be the order of barrier layer, barrier layer, (more than one barrier layer), color filter substrate, and color filter layer.
  • Barrier layer, color filter substrate, barrier layer, color The order may be filter layers, and may be a color filter substrate, a color filter layer, a barrier layer, a barrier layer, and (a plurality of barrier layers).
  • an anchor layer may be formed between the barrier layer and the base layer in order to improve adhesion.
  • the 2nd aspect of the layer structure of the color filter member for electronic paper of this invention is an aspect which has a barrier layer laminated body (a barrier layer and a barrier layer base material) as a barrier layer.
  • a barrier layer laminated body a barrier layer and a barrier layer base material
  • the barrier layer 3, the barrier layer base material 3 ′, the adhesive layer 4, the color filter base material 1, and the color filter layer 2 may be used in this order.
  • it may be in the order of a barrier layer substrate, a barrier layer, an adhesive layer, a color filter substrate, and a color filter layer.
  • the left side is the side that is the outermost surface of the electronic paper, and the right side is the side on which the display unit of the electronic paper is arranged.
  • the barrier layer laminated body may be arrange
  • the barrier layer laminate may be disposed between the color filter substrate and the color filter layer, and the color filter layer may be disposed between the color filter substrate and the barrier layer laminate.
  • the stacking order of the barrier layer and the barrier layer substrate in the barrier layer laminate is not limited.
  • the color filter layer is disposed on the outermost surface on the side where the display unit of the electronic paper is disposed.
  • 2 is a schematic cross-sectional view showing another example of the color filter member for electronic paper of the present invention. Reference numerals not described in FIG. 2 can be the same as those in FIG. The description in is omitted.
  • the barrier layer is a plurality of layers.
  • the layer configuration may be, for example, a barrier layer, a barrier layer, (more than one barrier layer), a barrier layer substrate, an adhesive layer, a color filter substrate, and a color filter layer in this order.
  • Barrier layer substrate, barrier layer, adhesive layer, color filter substrate, and color filter layer may be used in this order.
  • an anchor layer may be formed between the barrier layer and the base layer in order to improve adhesion.
  • the 3rd aspect of the layer structure of the color filter member for electronic paper of this invention is an aspect which has thin glass as a barrier layer. Furthermore, in this aspect, there are two aspects: an aspect in which the thin glass also serves as the color filter base material, and an aspect in which the thin glass does not serve as the color filter base material.
  • the specific layer structure of the former as illustrated in FIG. 3, there can be mentioned one in which a color filter layer 2 is formed on a thin glass plate 3 ′′.
  • a color filter substrate and a color filter layer may be laminated in this order on a thin glass plate using an adhesive layer.
  • FIG. 3 is a schematic cross-sectional view showing another example of the color filter member for electronic paper of the present invention. Reference numerals not described in FIG. 3 can be the same as those in FIG. The description in is omitted.
  • the color filter member for electronic paper of the present invention is not particularly limited as long as it has at least the color filter base material, the color filter layer, and the barrier layer. It is possible to add appropriately. Hereinafter, such a configuration will be specifically described.
  • the optical functional layer is arrange
  • the optical functional layer may be a layer that also serves as a surface protective layer described later.
  • FIG. 4 is a schematic cross-sectional view showing an example of a color filter member for electronic paper on which such an optical functional layer is formed.
  • the optical functional layer 5 when the optical functional layer 5, the barrier layer 3, the color filter substrate 1, and the color filter layer 2 are laminated in this order, and the color filter member 10 for electronic paper shown in FIG. 4 is used for electronic paper, An electronic paper display unit is disposed on the color filter layer 2 side.
  • symbol which is not demonstrated in FIG. 4, since it can be the same as that of FIG. 1, description here is abbreviate
  • the optical functional layer used in the present invention may be disposed on the outermost surface on the side opposite to the side on which the electronic paper display unit of the above-described color filter member for electronic paper is disposed alone.
  • the above-described color filter member for electronic paper may be disposed on the outermost surface opposite to the side on which the electronic paper display unit is disposed.
  • the optical functional layer base material used in the present invention the same material as the color filter base material described above can be used.
  • the thickness of the optical functional layer base material is not particularly limited as long as the optical functional layer can be supported, but is preferably in the range of 10 ⁇ m to 500 ⁇ m.
  • the optical functional layer laminate is usually bonded by forming an adhesive layer made of an adhesive material on the optical functional layer substrate side.
  • an adhesive material the thing similar to the adhesive material mentioned above can be used.
  • the thickness of the pressure-sensitive adhesive layer is not particularly limited as long as the optical functional layer laminate can be bonded so as not to peel off, and is the same as the other pressure-sensitive adhesive layers described above.
  • examples of the layer configuration of the color filter member for electronic paper include the following.
  • the left side is the side that is the outermost surface of the electronic paper, and the right side is the side on which the display unit of the electronic paper is arranged.
  • Optical function layer barrier layer, color filter substrate, color filter layer ⁇ Optical function layer, color filter substrate, barrier layer, color filter layer ⁇ Optical function layer, color filter substrate, color filter layer, barrier layer ⁇ Optical Functional layer, optical functional layer substrate, adhesive layer, barrier layer, color filter substrate, color filter layer ⁇ Optical functional layer, optical functional layer substrate, adhesive layer, color filter substrate, barrier layer, color filter layer ⁇ Optical Functional layer, optical functional layer substrate, adhesive layer, color filter substrate, color filter layer, barrier layerOptical functional layer, barrier layer, barrier layer substrate, adhesive layer, color filter substrate, color filter layerOptical function Layer, barrier layer substrate, barrier layer, adhesive layer, color filter substrate, color filter layer ⁇ Optical functional layer, color filter substrate, color filter layer, adhesive layer, burrs Layer, barrier layer substrate-optical functional layer, color filter substrate, color filter layer, adhesive layer, barrier layer substrate, barrier layer-optical functional layer, optical functional layer substrate, adhesive layer, barrier layer, barrier layer base Material, adhesive layer, color filter substrate, color filter
  • optical functional layer used in the present invention examples include an antiglare layer, an antireflection layer, a low reflection layer, and a peep prevention layer. Among them, an antiglare layer and an antireflection layer are preferable. . Hereinafter, the antiglare layer and the antireflection layer will be described.
  • Antiglare layer (antiglare layer)
  • the antiglare layer used in the present invention has antiglare properties.
  • the antiglare layer has irregularities on the surface or has internal scattering properties, thereby exhibiting antiglare properties and improving bright place contrast.
  • production of glare etc. can be suppressed.
  • a known antiglare layer can be used, and for example, it can be the same as that described in JP 2010-44311 A, etc. Omitted.
  • the average film thickness of the antiglare layer is preferably in the range of 1 ⁇ m to 10 ⁇ m.
  • Antireflection layer (anti-reflection layer)
  • the antireflection layer used in the present invention is reflected in the background due to specular reflection of extraneous light on the electronic paper surface, image whitening and image It has a function of preventing a decrease in contrast.
  • a known antireflection layer can be used. For example, it can be the same as that described in JP-A-2008-249882 and the like. Omitted.
  • the surface protective layer layer is arrange
  • the surface protective layer may be a layer that also serves as the optical functional layer described above.
  • FIG. 5 is a schematic sectional view showing an example of a color filter member for electronic paper on which such a surface protective layer is formed. In FIG. 5, the surface protective layer 6, the barrier layer 3, the color filter substrate 1, and the color filter layer 2 are laminated in this order, and when the color filter member 10 for electronic paper shown in FIG.
  • the surface protective layer used in the present invention may be disposed on the side opposite to the side where the electronic paper display unit of the color filter member for electronic paper described above alone is disposed, and on the surface protective layer base material.
  • the surface protective layer laminate in which the surface protective layer is formed the electronic paper color filter member described above may be disposed on the side opposite to the side where the electronic paper display unit is disposed.
  • the surface protective layer base material used in the present invention the same color filter base material as described above can be used.
  • the thickness of the surface protective layer substrate is not particularly limited as long as the surface protective layer can be supported, and specifically, it is preferably in the range of 10 ⁇ m to 500 ⁇ m.
  • the surface protective layer laminate is usually bonded by forming an adhesive layer made of an adhesive material on the surface protective layer substrate side. As an adhesive material, the thing similar to the adhesive material mentioned above can be used.
  • the thickness of the adhesive layer is not particularly limited as long as it can be bonded so that the surface protective layer laminate is not peeled off, and is the same as the
  • the color filter member for electronic paper when the color filter member for electronic paper of the present invention has a surface protective layer, the color filter member for electronic paper described in the section of “(1) Optical functional layer” above.
  • the optical functional layer can be exemplified as a surface protective layer, and therefore description thereof is omitted here.
  • Examples of the surface protective layer used in the present invention include a hard coat layer, an antifouling layer, an antistatic layer, an antibacterial layer and the like, and among them, a hard coat layer and an antifouling layer are preferable.
  • a hard coat layer and an antifouling layer are preferable.
  • the hard coat layer and the antifouling layer will be described.
  • the hard coat layer used in the present invention is a layer having a function of imparting scratch resistance to the color filter member for electronic paper of the present invention.
  • a known hard coat layer can be used, and for example, it can be the same as that described in JP 2010-44311 A, etc. Omitted.
  • the “hard coat layer” refers to a layer having a hardness of “H” or higher in a pencil hardness test generally defined by JIS 5600-5-4 (1999). Especially, it is preferable that the hardness of the hard-coat layer surface is "3H" or more.
  • the antifouling layer used in the present invention is a layer provided to prevent dust and dirt from adhering to each other, or to facilitate removal even if dust adheres.
  • a known antifouling layer can be used.
  • the antifouling layer can be formed by applying a very thin antifouling agent and drying it.
  • the antifouling agent include a surfactant such as a fluorine-based surfactant, a paint containing a fluorine-based resin, a release agent such as silicone oil, or a wax.
  • the antifouling layer may be provided separately from the hard coat layer, but may be formed as an antifouling layer by adding the antifouling agent to the hard coat layer.
  • the cost since the cost can be reduced, it is preferable to add an antifouling agent to the hard coat layer to form an antifouling layer.
  • the film thickness of the antifouling layer is preferably in the range of 1 nm to 30 nm. It is because there exists a possibility that an optical influence may arise when the film thickness of a pollution protection layer exceeds the said range.
  • the touch panel layer may be arrange
  • the touch panel layer used in the present invention is usually bonded using an adhesive layer made of an adhesive material.
  • the adhesive layer may be formed on one side of the touch panel layer, or may be formed on both sides.
  • an adhesive material the thing similar to the adhesive material mentioned above can be used.
  • the thickness of the adhesive layer is not particularly limited as long as it can be bonded so that the touch panel layer does not peel off, and is the same as the other adhesive layers described above.
  • a resistive film type touch panel has a structure in which electrode surfaces formed on a substrate maintain a gap and face each other. When the finger or pen is pressed, the substrate is deformed and the electrodes come into contact. An input point is detected by applying a voltage and reading the potential gradient of the contact portion.
  • the configuration of the resistive film type touch panel layer can be the same as that described in, for example, Japanese Patent Application Laid-Open No. 2003-307723, and the description thereof is omitted here.
  • the capacitive touch panel is a method of detecting an input point by utilizing a change in capacitance when a conductor such as a finger touches the panel.
  • the projection type has an electrode structure patterned in a matrix with a dielectric interposed therebetween, and an input point is detected from a voltage change caused by the electric capacitance of each electrode.
  • the configuration of the capacitive touch panel layer can be the same as that described in, for example, JP-T-2003-511799, and the description thereof is omitted here.
  • the arrangement position of the touch panel layer is not particularly limited as long as it is arranged on the side opposite to the side where the display unit of the electronic paper is arranged with respect to the color filter substrate and the color filter layer.
  • the color filter member for electronic paper of the present invention has at least one of an optical functional layer and a surface protective layer, the touch panel layer is disposed below these layers.
  • the layer configuration of the color filter member for electronic paper when the color filter member for electronic paper of the present invention has a touch panel layer the layer configuration of the color filter member for electronic paper described above that does not have a touch panel layer.
  • the touch panel layer is disposed on the outermost surface side than the color filter layer and the barrier layer
  • the touch panel layer is disposed between the color filter layer and the barrier layer.
  • these layers are arrange
  • FIG. 6 is a schematic cross-sectional view showing an example of a color filter member for electronic paper on which a touch panel layer is formed.
  • the optical functional layer 5 or the surface protective layer 6
  • the touch panel layer 7, the barrier layer 3, the color filter substrate 1, and the color filter layer 2 are laminated in this order, and the color for electronic paper shown in FIG.
  • an electronic paper display unit is disposed on the color filter layer 2 side.
  • the outermost surface of the electronic paper color filter member 10 illustrated in FIG. 6 may be the optical functional layer 5 or the surface protective layer 6.
  • the transparent electrode layer may be arrange
  • the material of the transparent electrode layer used in the present invention is not particularly limited as long as it is a conductive material capable of forming a transparent electrode.
  • a conductive material capable of forming a transparent electrode.
  • ITO indium tin oxide
  • IZO indium zinc oxide
  • Conductive oxides such as tin oxide, zinc oxide, indium oxide, aluminum zinc oxide (AZO), metals such as Au and Ni
  • conductive polymers such as polyaniline, polyacetylene, polyalkylthiophene derivatives, polysilane derivatives, etc.
  • ITO is preferably used.
  • the thickness of the transparent electrode layer used in the present invention is not particularly limited as long as it can function as a transparent electrode layer, but is preferably in the range of 15 nm to 200 nm. If the thickness of the transparent electrode layer is less than the above range, it is difficult to form the transparent electrode layer with a uniform thickness. If the thickness of the transparent electrode layer exceeds the above range, This is because the manufacturing cost increases because the time and materials used for film formation increase.
  • the formation method of the transparent electrode layer used in the present invention is not particularly limited as long as the transparent electrode layer can be formed with a desired thickness.
  • a method for forming such a transparent electrode layer a general electrode film forming method can be used.
  • a PVD method such as a vacuum deposition method, a sputtering method, an ion plating method, a CVD method, a conductive paste
  • coating is mentioned.
  • the transparent electrode layer may be formed on the entire surface of the underlying layer or substrate, or may be formed in a pattern on the underlying layer or substrate surface.
  • the transparent electrode layer used in the present invention may be disposed on the side where the display unit of the electronic paper is disposed with respect to the color filter substrate alone, and the transparent electrode layer is formed on the transparent electrode layer substrate.
  • a transparent electrode layer laminated body in which a layer is formed it may be arranged on the side where the display part of electronic paper is arranged with respect to the color filter substrate.
  • a transparent electrode layer base material used for this invention the thing similar to the color filter base material mentioned above can be used.
  • the thickness of the transparent electrode layer substrate is not particularly limited as long as the transparent electrode layer can be supported, but is preferably in the range of 10 ⁇ m to 500 ⁇ m.
  • the transparent electrode layer laminate is usually bonded by forming an adhesive layer made of an adhesive material.
  • the said adhesion layer may be formed in the transparent electrode layer side of the said transparent electrode layer laminated body, and may be formed in the transparent electrode layer base material side of the said transparent electrode layer laminated body.
  • an adhesive material the thing similar to the adhesive material mentioned above can be used.
  • the thickness of the adhesive layer is not particularly limited as long as the transparent electrode layer laminate can be bonded so as not to peel off, and is the same as the other adhesive layers described above.
  • the arrangement position of the transparent electrode layer is not particularly limited as long as the transparent electrode layer is arranged on the side where the electronic paper display unit is arranged with respect to the color filter substrate. It is preferable to arrange
  • a transparent electrode layer may be the outermost surface, and a transparent electrode layer base material is It may be the outermost surface.
  • the transparent electrode layer is disposed on the outermost surface on the side where the display unit of the electronic paper is disposed, the color filter layer is disposed on the transparent electrode layer, and the color In the case of a layer configuration having only the filter base material as the base material, the transparent electrode layer and the color filter layer may be arranged in reverse.
  • the display medium layer may be arrange
  • the display medium layer used in the present invention is appropriately selected according to the electronic paper display method in which the electronic paper color filter member of the present invention is used.
  • a display method of electronic paper known ones can be applied, for example, electrophoresis method, twist ball method, powder movement method (electronic powder fluid method, charged toner type method), liquid crystal display method, thermal method. (Coloring method, light scattering method), electrochromic method, electrowetting method, magnetophoresis method and the like.
  • the electrophoresis method is preferably used. This is because this method is in a practical stage and is a particle movement type, and thus it is possible to obtain an electronic paper that is less dependent on viewing angle and excellent in responsiveness.
  • the electrophoresis method uses an electrophoresis phenomenon in which charged particles dispersed in a solvent move between electrodes by an electric field.
  • Examples of the electrophoresis method include a microcapsule method and a microcup method.
  • the microcapsule method charged white particles and black particles and a transparent dispersion medium in which these particles are dispersed are encapsulated in a microcapsule made of a transparent resin, and an electric field is applied to the white particles and the black particles.
  • the black and white display or gradation is expressed by moving up and down.
  • a dispersion medium colored with a dye and charged white particles are arranged in a cell partitioned by cup-shaped depressions (microcups), and the white particles are moved up and down by applying an electric field. Thus, white or the color of the dispersion medium is displayed.
  • the configuration, material, and formation method of the display medium layer used in the present invention can be the same as those used in general electronic paper of each display method.
  • a display medium layer in the case where the color filter member for electronic paper of the present invention is used in microcapsule electronic paper will be described as an example.
  • a display medium layer for example, a microcapsule in which a dispersion liquid composed of white particles, black particles, and a transparent dispersion medium is fixed with a binder resin can be used.
  • transparent dispersion medium examples include alcohol solvents, various esters, ketones, aliphatic hydrocarbons, alicyclic hydrocarbons, aromatic hydrocarbons, halogenated hydrocarbons, carboxylates, and other various oils. Or a mixture of these with a surfactant or the like can be used.
  • white particles for example, white pigments such as titanium dioxide, zinc white, and antimony trioxide can be used.
  • black particles for example, black pigments such as aniline black, carbon black, and titanium black can be used.
  • these pigments may be charged with electrolytes, surfactants, metal soaps, resins, rubbers, oils, varnishes, compound charge control agents, titanium-based coupling agents, aluminum-based coupling agents, A dispersant such as a silane coupling agent, a lubricant, a stabilizer and the like may be added.
  • a material for forming the wall film of the microcapsule for example, a compound film such as a composite film of gum arabic / gelatin, urethane resin, urea resin, urea resin can be used.
  • binder resin those having good affinity for the wall film of the microcapsule, excellent adhesion to the transparent electrode layer, and insulating properties can be used.
  • polyethylene chlorinated polyethylene, ethylene-acetic acid can be used.
  • a vinyl copolymer, a silicone resin, etc. can be mentioned.
  • Such a display medium layer can be formed, for example, by applying a microcapsule dispersed in a binder resin to form an ink on the transparent electrode layer.
  • the display medium layer used in the present invention may be disposed alone on the side where the counter electrode substrate of electronic paper is disposed with respect to the transparent electrode layer, and the display medium layer is provided on the display medium layer base material.
  • the transparent electrode layer may be disposed on the side where the counter electrode substrate of electronic paper is disposed.
  • the display medium layer base material used in the present invention the same color filter base material as described above can be used.
  • the thickness of the display medium layer base material is not particularly limited as long as the display medium layer can be supported, but is preferably in the range of 10 ⁇ m to 500 ⁇ m.
  • the display medium layer laminate is usually bonded by forming an adhesive layer made of an adhesive material on the display medium layer substrate side.
  • an adhesive material the thing similar to the adhesive material mentioned above can be used.
  • the thickness of the adhesive layer is not particularly limited as long as it can be bonded so that the display medium layer laminate is not peeled off, and is the same as the other adhesive layers described above.
  • the arrangement position of the display medium layer is not particularly limited as long as it is arranged on the side where the counter electrode substrate of the electronic paper is arranged with respect to the transparent electrode layer. It is preferable that it is arrange
  • the display medium layer may be the outermost surface, and the display medium layer base material May be the outermost surface.
  • Color filter member for electronic paper The color filter member for electronic paper of the present invention can adopt various layer configurations as described above. Among these, in the present invention, examples of preferable layer structures include the following.
  • the left side is the side that is the outermost surface of the electronic paper, and the right side is the side on which the display unit and / or the counter electrode substrate of the electronic paper is arranged.
  • -Barrier layer 3 color filter substrate 1, barrier layer 3, color filter layer 2, adhesive layer 4 (see FIG. 7)
  • Barrier layer 3, barrier layer base material 3 ′, barrier layer 3, adhesive layer 4, color filter base material 1, color filter layer 2, adhesive layer 4 (see FIG.
  • FIGS. 7 and 8 are schematic cross-sectional views showing other examples of the color filter member for electronic paper according to the present invention. Reference numerals not described in FIGS. 7 and 8 are the same as those in FIG. Since it is possible, description here is abbreviate
  • the electronic paper of the present invention is a color filter base material, and a color filter layer formed on one surface side of the color filter base material and having a plurality of colored layers, and at least one surface of the color filter base material
  • a color filter member for electronic paper having a barrier layer disposed on the side, a transparent electrode layer, a display medium layer, a counter substrate, and a counter electrode substrate having a counter electrode layer formed on the counter substrate
  • the electronic paper color filter member is disposed on one surface of the electronic paper, the counter electrode substrate is disposed on the other surface of the electronic paper, and the transparent electrode layer is It is arranged on the counter electrode substrate side with respect to the color filter base material, and the display medium layer is on the counter electrode substrate side with respect to the transparent electrode layer.
  • the counter electrode layer, with respect to the counter substrate and is characterized in that it is arranged in the display medium layer side.
  • FIG. 9 is a schematic cross-sectional view showing an example of the electronic paper of the present invention.
  • An electronic paper 20 illustrated in FIG. 9 includes an electronic paper color filter member 10, a transparent electrode layer 8, a display medium layer 9, an adhesive layer 4, and a counter electrode substrate 13.
  • the color filter member 10 for electronic paper is formed in the color filter base material 1 and the one surface side of the color filter base material 1, and the color filter layer 2 provided with several colored layers (2R, 2G, 2B).
  • the barrier layer 3 disposed on the surface side of the color filter base material 1 where the color filter layer 2 is not formed.
  • the counter electrode substrate 13 is disposed on the counter base material 11 and the counter base material 11.
  • the counter electrode layer 12 is formed.
  • the electronic paper color filter member 10 is disposed on one surface of the electronic paper 20, and the counter electrode substrate 13 is disposed on the other surface of the electronic paper 20.
  • the transparent electrode layer 8 is disposed on the counter electrode substrate 13 side with respect to the color filter substrate 1, and the display medium layer 9 is disposed on the counter electrode substrate 13 side with respect to the transparent electrode layer 8.
  • the counter electrode layer 12 is disposed on the display medium layer 9 side with respect to the counter base material 11.
  • the color filter member for electronic paper having a barrier layer since the color filter member for electronic paper having a barrier layer is used, the electronic paper display unit can be protected from moisture, oxygen, and the like, and the electronic paper has excellent color display characteristics. Can do. Further, the color filter member for electronic paper used in the present invention can reduce the number of base materials of the constituent layers, so that the electronic paper can be made thinner and the number of interfaces can be reduced. Optical characteristics can be improved.
  • the color filter member for electronic paper and the transparent electrode layer may be integrated, or the color filter member for electronic paper, the transparent electrode layer, and the display medium layer may be integrated. Since the color filter member for electronic paper, the transparent electrode layer, and the display medium layer are described in detail in the section “A. Color filter member for electronic paper”, description thereof is omitted here. Hereinafter, other configurations of the electronic paper of the present invention will be described.
  • Counter electrode substrate used in the present invention has a counter base material and a counter electrode layer formed on the counter base material.
  • the counter electrode layer used in the present invention may be a pixel electrode layer formed so as to be orthogonal to the stripe pattern of the transparent electrode layer, and is connected to a plurality of TFT elements and the TFT elements. It may be a TFT electrode layer having a pixel electrode.
  • a passive matrix electronic paper can be obtained
  • an active matrix electronic paper can be obtained.
  • FIG. 10 is a schematic sectional view showing an example of the counter electrode substrate used in the present invention.
  • a counter electrode substrate 13 illustrated in FIG. 10 includes a counter substrate 11 and a TFT electrode layer 12 ′ formed on the counter substrate 11 and having a plurality of TFT elements 14 and pixel electrodes 15 connected to the TFT elements 14. ing.
  • the TFT element 14 includes a gate electrode 14a, a gate insulating film 14b formed on the gate electrode 14a, a semiconductor layer 14c formed on the gate insulating film 14b, and a semiconductor layer.
  • the pixel electrode 15 is formed so as to be connected to the drain electrode 14e.
  • the source electrode 14d and the drain electrode 14e are formed on the surface 14c so as to face each other at a constant interval. Further, as illustrated in FIG. 10, the TFT electrode layer 13 used in the present invention has a protective film 16 formed so as to cover the TFT element 14, and a pixel electrode 15 is formed on the protective film 16. May be.
  • the TFT element is not particularly limited and is appropriately selected according to the type of the electronic paper of the present invention.
  • the TFT element may have an a-Si TFT structure or a p-Si TFT structure. It may be.
  • a TFT element having an a-Si TFT structure either a normal stagger type (top gate structure) or an inverted stagger type (bottom gate structure) may be used.
  • an inverted stagger type either a channel etch type or a channel protect type may be used.
  • a planar type or a stagger type may be used.
  • the semiconductor layer constituting the TFT element is not particularly limited as long as it can be formed on the opposing base material.
  • silicon, an oxide semiconductor, or an organic semiconductor is used.
  • the silicon polysilicon or amorphous silicon can be used.
  • the oxide semiconductor include zinc oxide (ZnO), titanium oxide (TiO), magnesium zinc oxide (Mg x Zn 1-x O), cadmium zinc oxide (Cd x Zn 1-x O), and cadmium oxide (CdO).
  • ZnO zinc oxide
  • TiO titanium oxide
  • Mg x Zn 1-x O magnesium zinc oxide
  • Cd x Zn 1-x O cadmium zinc oxide
  • CdO cadmium oxide
  • WO tungsten oxide
  • InGaZnO-based, InGaSnO-based, InGaZnMgO-based, InAlZnO-based InFeZnO, InGaO, ZnGaO, and InZnO can be used.
  • organic semiconductors include ⁇ -electron conjugated aromatic compounds, chain compounds, organic pigments, and organosilicon compounds. More specifically, pentacene, tetracene, thiophen oligomer derivatives, phenylene derivatives, phthalocyanine compounds, polyacetylene derivatives, polythiophene derivatives, cyanine dyes and the like can be mentioned.
  • the formation method and thickness of the semiconductor layer can be the same as a general one.
  • the gate electrode, the source electrode, and the drain electrode constituting the TFT element are not particularly limited as long as they have desired conductivity, and conductive materials generally used for TFT elements can be used. . Examples of such materials include Ta, Ti, Al, Zr, Cr, Nb, Hf, Mo, Au, Ag, Pt, Mo—Ta alloys, W—Mo alloys, ITO, IZO and other inorganic materials, and And organic materials having conductivity such as PEDOT / PSS.
  • the formation method and thickness of the gate electrode, the source electrode, and the drain electrode can be the same as those in general.
  • the gate insulating film constituting the TFT element can be the same as the gate insulating film in a general TFT element.
  • An insulating organic material such as an insulating organic material can be used.
  • the formation method and thickness of the gate insulating film can be the same as a general one.
  • a protective film may be formed on the TFT element.
  • the protective film is provided to protect the TFT element.
  • the semiconductor layer can be prevented from being exposed to moisture or the like contained in the air.
  • the protective film By forming the protective film, deterioration of the TFT performance with time can be reduced.
  • silicon oxide or silicon nitride is used as such a protective film.
  • the method for forming the protective film and the thickness thereof can be the same as those in general.
  • the pixel electrode is not particularly limited as long as it is generally used for electronic paper or the like, and examples thereof include indium oxide, tin oxide, indium tin oxide (ITO), and indium tin oxide (IZO). Preferably used.
  • the formation method and thickness of the pixel electrode can be the same as a general one.
  • the counter substrate used in the present invention supports the counter electrode layer.
  • a counter substrate is not particularly limited as long as it is generally used as a substrate such as electronic paper, and preferred examples include a glass plate and a plastic plate.
  • the transparent electrode layer and the display medium layer are laminated in this order on the color filter member for electronic paper, and the display medium layer is formed using an adhesive layer made of an adhesive material.
  • the counter electrode layer of the counter electrode substrate are bonded together.
  • the adhesive layer may be formed on the display medium layer, or may be formed on the counter electrode layer.
  • the adhesive material the same adhesive material as described in the above-mentioned section “A. Color filter member for electronic paper” can be used.
  • the thickness of the adhesive layer is not particularly limited as long as the display medium layer and the counter electrode layer can be bonded so as not to peel off, and is the same as the other adhesive layers described above.
  • the specific layer configuration of the electronic paper of the present invention may be the order of the color filter member for electronic paper, the transparent electrode layer, the display medium layer, the adhesive layer, the counter electrode layer, and the counter substrate.
  • the transparent electrode layer and the display medium layer may have a base material, and when having a base material, they are laminated using an adhesive layer.
  • description here is abbreviate
  • the electronic paper of the present invention can have various layer configurations.
  • examples of preferable layer structures include the following.
  • 11 and 12 are schematic cross-sectional views illustrating other examples of the electronic paper of the present invention, and reference numerals not described in FIGS. 11 and 12 can be the same as those in FIG. The description here is omitted.
  • the electronic paper of the present invention is used for a display of a digital device, an electronic book, a digital signage (electronic signage), and the like.
  • the method for producing a color filter member for electronic paper according to the present invention includes a color filter substrate, a color filter layer formed on one surface side of the color filter substrate and including a plurality of colored layers, and the color filter substrate. And an electronic paper color filter member forming step of forming a color filter member for electronic paper having a barrier layer disposed on at least one surface side by a roll-to-roll method.
  • a color filter member for electronic paper with high productivity can be obtained by forming a color filter member for electronic paper that does not require high positional accuracy of each constituent layer by a roll-to-roll method. .
  • Color filter member forming step for electronic paper is a color filter base and a color filter layer formed on one surface side of the color filter base and provided with a plurality of colored layers. And forming a color filter member for electronic paper having a barrier layer disposed on at least one surface side of the color filter substrate by a roll-to-roll method.
  • the color filter member for electronic paper is the same as that described in the above section “A. Color filter member for electronic paper”, and thus the description thereof is omitted here.
  • a color filter layer laminate in which a color filter layer is formed on a color filter substrate a barrier layer laminate in which a barrier layer is formed on a barrier layer substrate, and an optical functional layer substrate
  • a roll-to- It is characterized by being bonded by a roll method. Therefore, an aspect (first aspect) in which the color filter layer laminate and the barrier layer laminate are bonded according to the combination of the laminates bonded by a roll-to-roll method, and the color filter layer laminate.
  • the optical functional layer laminate or the surface protective layer laminate (second embodiment), the color filter layer laminate, the barrier layer laminate, the optical functional layer laminate or the surface protective layer.
  • the process can be divided.
  • the color filter layer may be formed after the color filter base material is bonded together by a roll-to-roll method instead of the color filter layer laminate.
  • the 1st aspect of the color filter member formation process for electronic paper in this invention is a color filter layer laminated body in which the color filter layer was formed on the color filter base material, and a barrier on a barrier layer base material.
  • This is a step of forming a color filter member for electronic paper by laminating the barrier layer laminate formed with the layers by a roll-to-roll method.
  • the long color filter layer laminate and the long barrier layer laminate are formed.
  • these laminates are bonded together by a roll-to-roll method.
  • the color filter member for electronic paper formed according to this aspect has an optical functional layer or a surface protective layer
  • the long color filter layer laminate and the long barrier layer laminate are roll-to-roll.
  • an optical function layer or a surface protective layer on any laminated body.
  • a laminate in which the long color filter layer laminate and the long barrier layer laminate are bonded together by a roll-to-roll method is cut out into a sheet shape, and optically layered on the optical functional layer substrate.
  • an optical functional layer or a surface protective layer is formed on a laminate obtained by laminating the long color filter layer laminate and the long barrier layer laminate by a roll-to-roll method. May be.
  • the layer structure of the color filter member for electronic paper formed according to this aspect is the same as that described in the above section “A. Color filter member for electronic paper”, and thus the description thereof is omitted here. .
  • the 2nd aspect of the color filter member formation process for electronic paper in this invention is the color filter layer laminated body in which the color filter layer was formed on the color filter base material, and the optical function layer base material.
  • a color filter for electronic paper by laminating an optical functional layer laminate having an optical functional layer formed thereon or a surface protective layer laminate having a surface protective layer formed on a surface protective layer base material by a roll-to-roll method. It is a process of forming a member. In this embodiment, first, the long color filter layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are formed. Next, these laminates are bonded together by a roll-to-roll method.
  • a barrier layer needs to be formed, in this embodiment, the long color filter layer laminate and the long optical function layer laminate or the long surface.
  • a barrier layer is formed on any laminate.
  • a laminate in which the elongated color filter layer laminate and the elongated optical functional layer laminate or the elongated surface protective layer laminate are bonded together by a roll-to-roll method is used as a sheet. And may be bonded to a sheet-like barrier layer laminate in which a barrier layer is formed on a barrier layer substrate.
  • a barrier layer may be formed on the laminate in which the long color filter layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are bonded together by a roll-to-roll method.
  • a barrier layer may be formed on the laminate in which the long color filter layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are bonded together by a roll-to-roll method.
  • a barrier layer may be formed on the laminate in which the long color filter layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are bonded together by a roll-to-roll method.
  • a barrier layer may be formed on the laminate in which the long color filter layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are bonded together by a roll-to-roll method.
  • a barrier layer may be formed on the laminate in which the long color filter layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are bonded together by a roll-to-roll method.
  • a barrier layer may be formed on the laminate in which the long
  • the third aspect of the color filter member forming step for electronic paper in the present invention is a color filter layer laminate in which a color filter layer is formed on a color filter substrate, and a barrier on the barrier layer substrate.
  • Barrier layer laminate in which layers are formed, and an optical functional layer laminate in which an optical functional layer is laminated on an optical functional layer substrate, or a surface protective layer laminate in which a surface protective layer is formed on a surface protective layer substrate Are bonded by a roll-to-roll method to form a color filter member for electronic paper.
  • the elongated color filter layer laminate, the elongated barrier layer laminate, the elongated optical functional layer laminate or the elongated surface protective layer laminate are bonded by a roll-to-roll method to form a color filter member for electronic paper.
  • these laminated bodies are bonded together by a roll-to-roll method.
  • the order of bonding is not particularly limited as long as these laminates are bonded so that the optical functional layer or the surface protective layer is disposed on the outermost surface of the color filter member for electronic paper.
  • the layer structure of the color filter member for electronic paper formed according to this aspect is the same as that described in the above section “A. Color filter member for electronic paper”, and thus the description thereof is omitted here. .
  • a fourth aspect of the color filter member forming step for electronic paper in the present invention is a barrier layer laminate in which a barrier layer is formed on a barrier layer substrate, and an optical function on the optical functional layer substrate.
  • a color filter member for electronic paper is laminated by a roll-to-roll method with an optical functional layer laminate having a layer formed thereon or a surface protective layer laminate having a surface protective layer formed on a surface protective layer substrate. It is a process of forming. In this embodiment, first, the long barrier layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are formed. Next, these laminates are bonded together by a roll-to-roll method.
  • the long barrier layer laminate and the long optical functional layer laminate or the long surface protective layer laminate are bonded together by a roll-to-roll method.
  • the laminate is cut into a sheet shape and bonded to a sheet-like color filter layer laminate in which a color filter layer is formed on a color filter substrate.
  • the layer structure of the color filter member for electronic paper formed according to this aspect is the same as that described in the above section “A. Color filter member for electronic paper”, and thus the description thereof is omitted here. .
  • the above-mentioned color filter member forming step for electronic paper aligns the touch panel layer under vacuum by a sheet-to-sheet method, or the touch panel layer is a sheet-to-sheet method. May have a touch panel layer laminating step of laminating with alignment.
  • the touch panel layer needs alignment with the color filter layer, but alignment is adjusted by having the touch panel layer stacking step.
  • a color filter member for electronic paper having a touch panel function and good color display characteristics when used for electronic paper can be obtained.
  • the touch panel layer is the same as that described in the above-mentioned section “A. Color filter member for electronic paper”, and the description thereof is omitted here.
  • a sheet-to-sheet that allows alignment adjustment of bonding between the touch panel layer or the member including the touch panel layer and the member including the color filter layer.
  • Color filter member forming step for electronic paper The touch panel layer or a member including the touch panel layer is aligned and bonded under vacuum by a sheet-to-sheet method, or laminated with alignment by a sheet-to-sheet method.
  • a member including a touch panel layer and a touch panel layer obtained by bonding at least one of the barrier layer laminate, the optical functional layer laminate, and the surface protective layer laminate by a roll-to-roll method, and a color filter
  • the member including the layer may be aligned and bonded under vacuum by a sheet-to-sheet method, or may be laminated with alignment by a sheet-to-sheet method.
  • the method of alignment bonding under vacuum by a sheet-to-sheet method is not particularly limited.
  • a member including a sheet-like color filter layer and a sheet-like touch panel layer or Examples of the method include positioning with a member including a touch panel layer using alignment marks formed in advance on both members, and pressing both members through an adhesive layer.
  • the degree of vacuum is not particularly limited as long as foreign matter and bubbles can be prevented from being mixed on the bonding surface, and can be set within a range of 50 Pa to 10,000 Pa, for example.
  • the method for laminating with alignment by the sheet-to-sheet method is not particularly limited.
  • the position of a member including a sheet-like color filter layer and a member including a sheet-like touch panel layer or a touch panel layer can be exemplified.
  • the method for producing electronic paper of the present invention includes a color filter member forming step for forming the above-described color filter member for electronic paper by a roll-to-roll method, and a transparent electrode layer on the color filter member for electronic paper. And the display medium layer is formed so that the display medium layer is disposed on one surface of the electronic paper color filter member via the transparent electrode layer, and the electronic paper color filter with a display section is formed.
  • Color filter member forming process for display-equipped electronic paper forming member, color filter member for display-equipped electronic paper, counter substrate and counter electrode substrate having counter electrode layer formed on counter substrate The counter electrode layer of the color filter member for electronic paper with a display unit with respect to the counter base material To be placed in the serial display medium layer side, it is characterized in that it has a bonding step of aligning and bonding under vacuum by a sheet-to-sheet method.
  • a color filter member for electronic paper that does not require high positional accuracy of each constituent layer is formed by a roll-to-roll method, and a color filter member for electronic paper with a display unit that requires precise alignment.
  • the counter electrode substrate are bonded by vacuum alignment bonding using a sheet-to-sheet method, whereby highly accurate and highly productive electronic paper can be obtained.
  • the electronic paper excellent in the color display characteristic can be obtained by using the said color filter member for electronic paper.
  • the color filter member for electronic paper is provided with a display section including a transparent electrode layer and a display medium layer.
  • the display medium layer is formed so as to be disposed on one surface of the color filter member for electronic paper via the transparent electrode layer, thereby forming a color filter member for display-attached electronic paper.
  • the display unit used in this process includes a transparent electrode layer and a display medium layer.
  • the transparent electrode layer and the display medium layer are the same as those described in the above section “A. Color filter member for electronic paper”, and thus description thereof is omitted here.
  • the display unit used in this step may include a display unit base material in addition to the transparent electrode layer and the display medium layer.
  • a display part base material it can be used for this process as a display part laminated body in which the transparent electrode layer and the display medium layer were formed on the display part base material.
  • a display part base material used for this process the same thing as the color filter base material described in the above-mentioned "A. Color filter member for electronic paper" can be used.
  • the thickness of the display portion base material is not particularly limited as long as it can support the transparent electrode layer and the display medium layer, but it is preferably in the range of 10 ⁇ m to 500 ⁇ m.
  • the said display part laminated body usually forms the adhesion layer which consists of an adhesive material in the display part base material side, and is bonded together.
  • the adhesive material the same adhesive material as described in the above-mentioned section “A. Color filter member for electronic paper” can be used.
  • the thickness of the adhesive layer is not particularly limited as long as it can be bonded so that the display unit laminate is not peeled off, and is the same as the other adhesive layers described above.
  • the display unit used in this step may have a transparent electrode layer substrate in addition to the display unit substrate.
  • the display unit has a transparent electrode layer substrate, the transparent electrode layer laminate in which the transparent electrode layer is formed on the transparent electrode layer substrate, and the display medium layer in which the display medium layer is formed on the display unit substrate
  • a display unit laminate including the laminate can be used in this step.
  • the transparent electrode layer base material and the transparent electrode layer laminate are the same as those described in the above-mentioned section “A. Color filter member for electronic paper”, and thus description thereof is omitted here.
  • this process can be divided into two aspects, the aspect which does not have a display part base material, and the aspect which has a display part base material.
  • a transparent electrode layer and a display medium layer are formed in this order on the said color filter member for electronic paper.
  • the aspect which has a display part base material is further two aspects of the aspect which has only a display part base material, and the aspect which has a display part base material and a transparent electrode layer base material according to the layer structure of a display part laminated body.
  • a transparent electrode layer laminate having a transparent electrode layer formed on the transparent electrode layer base material, and a display medium layer formed on the display part base material The display medium layer laminate is formed.
  • the transparent electrode layer laminate and the display medium layer laminate are bonded together to form a display unit laminate.
  • the said display part laminated body and the said color filter member for electronic paper are bonded together using an adhesion layer.
  • the layer structure of the color filter member for electronic paper with a display part formed by this step is particularly limited as long as the display medium layer is disposed on one surface of the color filter member for electronic paper via the transparent electrode layer.
  • the display part is arrange
  • Examples of the layer structure of the color filter member for electronic paper with a display unit include two modes, an mode having no display unit base material and a mode having a display unit base material.
  • As a layer structure of the color filter member for electronic paper with a display part of the aspect which does not have a display part base material it becomes the order of the color filter member for electronic paper, a transparent electrode layer, and a display medium layer.
  • the aspect which has a display part base material of the aspect which has only a display part base material and the aspect which has a display part base material and a transparent electrode layer base material according to the layer structure of a display part laminated body as mentioned above. It can be divided into two aspects.
  • the layer configuration of the color filter member for electronic paper with a display unit having only the display unit base material may be the order of the color filter member for electronic paper, the display unit base material, the transparent electrode layer, and the display medium layer.
  • the color filter member for electronic paper, the transparent electrode layer, the display unit base material, and the display medium layer may be used in this order.
  • the color filter member for electronic paper As a layer structure of the color filter member for electronic paper with a display part of the aspect which has a display part base material and a transparent electrode layer base material, the color filter member for electronic paper, a transparent electrode layer base material, a transparent electrode layer, an adhesion layer, a display
  • the order may be the order of the base material and the display medium layer, or the order of the color filter member for electronic paper, the transparent electrode layer base material, the transparent electrode layer, the adhesive layer, the display medium layer, and the display part base material.
  • Color filter member for electronic paper, transparent electrode layer, transparent electrode layer base material, adhesive layer, display portion base material, display medium layer may be in this order, color filter member for electronic paper, transparent electrode layer, transparent electrode
  • the order may be a layer base material, an adhesive layer, a display medium layer, and a display portion base material.
  • the color filter member for display-equipped electronic paper and the counter electrode substrate having the counter substrate and the counter electrode layer formed on the counter substrate are combined with the counter electrode.
  • the step of alignment bonding under vacuum by a sheet-to-sheet method so that the layer is disposed on the display medium layer side of the color filter member for electronic paper with a display unit with respect to the counter substrate. is there.
  • the counter electrode substrate having the counter substrate and the counter electrode layer formed on the counter substrate is the same as that described in the section “B. Electronic paper”, and the description here is as follows. Omitted.
  • the color filter member for electronic paper with a display unit and the counter electrode substrate are usually bonded together using an adhesive layer made of an adhesive material.
  • the said adhesion layer may be formed in the said color filter member for electronic paper with a display part, and may be formed in the said counter electrode substrate.
  • the adhesive layer is the same as that described in the above section “B. Electronic paper”, and the description thereof is omitted here.
  • the method of aligning and bonding under vacuum by a sheet-to-sheet method is not particularly limited.
  • the sheet-like color filter member for electronic paper with a display unit and a sheet-fed The alignment with the said counter electrode board
  • the degree of vacuum is the same as that described in the section “2. Touch panel layer stacking step” in “C. Method for producing color filter member for electronic paper”.
  • the manufacturing method of the electronic paper of this invention is required in addition to the said color filter member formation process for electronic paper which is an essential process, the said color filter member formation process for electronic paper with a display part, and the said bonding process. Depending on the, it may have an optional step.
  • a process for example, before the bonding step, the step of cutting out the color filter member for electronic paper with a display part formed by the color filter member forming process for electronic paper with a display part into a sheet shape, washing Examples include a process, a surface modification process such as UV irradiation, a dehumidification process, and an inspection process.
  • Electronic paper The layer structure and use of electronic paper produced by the method for producing electronic paper of the present invention are the same as those described in the above section “B. Electronic paper”, so description thereof is omitted here. .
  • the present invention is not limited to the above embodiment.
  • the above-described embodiment is an exemplification, and the present invention has substantially the same configuration as the technical idea described in the claims of the present invention, and any device that exhibits the same function and effect is the present invention. It is included in the technical scope of the invention.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Molecular Biology (AREA)
  • Optical Filters (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un élément de filtre coloré pour papier électronique qui peut présenter des propriétés d'affichage des couleurs satisfaisantes lorsqu'il est utilisé dans un papier électronique. Plus précisément, la présente invention concerne un filtre coloré pour papier électronique qui peut être utilisé dans un papier électronique et dans lequel une couche de support d'affichage est disposée entre deux substrats opposés. Au moins un des deux substrats est transparent. La couche de support d'affichage peut afficher des informations déterminées. L'élément de filtre coloré est caractérisé en ce qu'il comprend un matériau de base de filtre coloré, une couche de filtre coloré qui est formée sur un côté de surface du matériau de base de filtre coloré et comporte de multiples couches colorées, et une couche barrière qui est disposée sur au moins un côté de surface du matériau de base de filtre coloré.
PCT/JP2011/062527 2010-06-24 2011-05-31 Elément de filtre coloré pour papier électronique, papier électronique et procédés de production de ces produits Ceased WO2011162076A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010-143833 2010-06-24
JP2010143833A JP2012008323A (ja) 2010-06-24 2010-06-24 電子ペーパー用カラーフィルタ部材、電子ペーパー、およびそれらの製造方法

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WO2011162076A1 true WO2011162076A1 (fr) 2011-12-29

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JP (1) JP2012008323A (fr)
TW (1) TW201215931A (fr)
WO (1) WO2011162076A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117055763B (zh) * 2023-10-12 2023-12-19 成都捷翼电子科技有限公司 一种彩色墨水触控屏及其加工工艺

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001013485A (ja) * 1999-06-30 2001-01-19 Hitachi Ltd 液晶表示装置
JP2006162848A (ja) * 2004-12-06 2006-06-22 Sumitomo Bakelite Co Ltd 表示装置用カラーフィルタ、カラーフィルタ部材および表示装置用カラーフィルタの製造方法
JP2006163619A (ja) * 2004-12-03 2006-06-22 Seiko Epson Corp 電子ペーパ及び電子機器
JP2009037119A (ja) * 2007-08-03 2009-02-19 Seiko Epson Corp 電気泳動表示装置及び電子ペーパー
JP2010127985A (ja) * 2008-11-25 2010-06-10 Bridgestone Corp カラーフィルター基板の製造方法およびカラー情報表示用パネルの製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001013485A (ja) * 1999-06-30 2001-01-19 Hitachi Ltd 液晶表示装置
JP2006163619A (ja) * 2004-12-03 2006-06-22 Seiko Epson Corp 電子ペーパ及び電子機器
JP2006162848A (ja) * 2004-12-06 2006-06-22 Sumitomo Bakelite Co Ltd 表示装置用カラーフィルタ、カラーフィルタ部材および表示装置用カラーフィルタの製造方法
JP2009037119A (ja) * 2007-08-03 2009-02-19 Seiko Epson Corp 電気泳動表示装置及び電子ペーパー
JP2010127985A (ja) * 2008-11-25 2010-06-10 Bridgestone Corp カラーフィルター基板の製造方法およびカラー情報表示用パネルの製造方法

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JP2012008323A (ja) 2012-01-12

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