JP2012008323A - Color filter member for electronic paper, electronic paper and manufacturing method for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide as a main purpose a color filter member for electronic paper that can give satisfactory color display characteristics when used for electronic paper.SOLUTION: A color filter member for electronic paper has a display medium layer that is arranged between two substrates, of which at least one is transparent, and is intended for electronic paper for displaying prescribed information on the display medium layer, and further comprises a color filter base, a color filter layer formed on one of the surface sides of the color filter base and provided with a plurality of coloring layers, and a barrier layer or layers arranged on at least one of the surface sides of the color filter base.

Description

  The present invention relates to a color filter member for electronic paper that can obtain good color display characteristics when used in electronic paper.

  In recent years, research on information media called electronic paper has been conducted. This medium encloses a display medium such as a microcapsule between opposing substrates and electrically switches the display. In addition to 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.

  As a means for performing color display with the electronic paper described above, a method of coloring the display medium itself has been proposed. However, with 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.

  On the other hand, as another means, a method using a color filter in the same manner as a liquid crystal display is known (for example, see Patent Documents 1 to 3). However, an appropriate layer configuration of the entire electronic paper for obtaining good color display characteristics is not mentioned, and the design of a color filter member for electronic paper for obtaining good color display characteristics is not clear.

JP 2003-280044 A Special table 2010-503895 gazette JP 2010-44337 A

  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.

  In order to achieve the above object, 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 | positioned at the surface side of this.

  According to the present invention, since it is a color filter member for electronic paper having a barrier layer, when used in electronic paper, the display medium of electronic paper can be protected from moisture, oxygen, etc., and has excellent color display characteristics. Electronic paper can be obtained.

  In the said invention, it is preferable that the optical function layer or the surface protective layer is arrange | positioned at the outermost surface on the opposite side to the side by which the display part of electronic paper is arrange | positioned. When 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.

  In the said invention, the touchscreen layer may be arrange | positioned with respect to the said color filter base material and the color filter layer on the opposite side to the side by which the display part of electronic paper is arrange | positioned. By having the touch panel layer, when the color filter member for electronic paper of the present invention is used for electronic paper, highly convenient electronic paper capable of inputting information can be obtained by directly touching the screen.

  In the said invention, the transparent electrode layer may be arrange | positioned with respect to the said color filter base material at the side by which the display part of electronic paper is arrange | positioned.

  In the said invention, the display medium layer may be arrange | positioned with respect to the said transparent electrode layer at the side by which the counter electrode board | substrate of electronic paper is arrange | positioned.

  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 is, with respect to the counter substrate, providing an electronic paper, characterized in that disposed in the display medium layer side.

  According to the present invention, 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.

  In addition, 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. There is provided 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. .

  According to the present invention, 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. .

  In the above invention, 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. When the color filter member for electronic paper produced by the present invention has a touch panel layer, 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.

  In addition, 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. A color filter member forming step for electronic paper with a display unit, a color filter member for electronic paper with a display unit, a counter substrate having a counter substrate and a counter electrode layer formed on the counter substrate, 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. As location, to provide 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.

  According to the present invention, 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. And 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. Moreover, the electronic paper excellent in the color display characteristic can be obtained by using the said color filter member for electronic paper.

  In the present invention, when used in electronic paper, there is an effect that good color display characteristics can be obtained.

It is a schematic sectional drawing which shows an example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the color filter member for electronic paper of this invention. It is a schematic sectional drawing which shows an example of the electronic paper of this invention. It is a schematic sectional drawing which shows an example of the counter electrode board | substrate used for this invention. It is a schematic sectional drawing which shows the other example of the electronic paper of this invention. It is a schematic sectional drawing which shows the other example of the electronic paper of this invention.

  Hereinafter, the manufacturing method of the color filter member for electronic paper of this invention, electronic paper, the color filter member for electronic paper, and the manufacturing method of electronic paper are demonstrated in detail.

A. First, the color filter member for electronic paper of the present invention will be described. 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.

  The color filter member for electronic paper of this invention is demonstrated referring drawings. 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 | positioned at the surface side in which the color filter layer 2 of the color filter base material 1 is not formed. In FIG. 1, 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 arranged in

  According to the present invention, since it is a color filter member for electronic paper having a barrier layer, when used in electronic paper, 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.

  Hereinafter, each structure in the color filter member for electronic paper of this invention is demonstrated.

1. Color filter layer The 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.
Here, “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.

  About the material of the said colored layer, since it can be made to be the same as that used for the colored layer of a general color filter, description here is abbreviate | omitted.

  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 μm to 3.0 μm.

  In addition, 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. As such 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.

2. 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. . Especially, it is preferable that the transmittance | 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.
Here, the transmittance of the color filter substrate can be measured by JIS K7361-1 (a test method for the total light transmittance of a plastic-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. Examples of the resin film substrate 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.
In the present invention, as described later, a thin glass plate having flexibility and barrier properties may be used as the color filter substrate.

  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 μm to 500 μm. 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.

3. Barrier layer The 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.
Here, “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 | positions through the other layer on the surface of this.

  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 depending on 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 deposition method, and a plasma CVD method.

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. As 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 μm to 500 μm.
Moreover, 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. For example, polycarbonate resin, polyolefin resin, acrylic resin, urethane resin, silicone resin, polyester Resin, epoxy resin and the like, and acrylic resin is preferable among them. Further, the film 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 μm to 50 μm. it can.

As the barrier layer used in the present invention, a thin glass plate having a thickness of 150 μm 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 μm or less, it is possible to laminate by a roll-to-roll method. The thickness of the thin glass may be 150 μm or less, but is preferably in the range of 20 μm to 120 μm, and more preferably in the range of 50 μm to 100 μm.
As such a thin glass, for example, soda lime glass, alkali-free glass, quartz glass and the like can be used, and alkali-free glass is preferable among them.
When the thin glass is used as the barrier layer used in the present invention, since 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.

4). Layer structure of electronic paper color filter member In the present invention, 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. When the color filter layer is disposed on the outermost surface on the side where the display unit of the electronic paper is disposed, the order of stacking the color filter base material and the barrier layer is not limited.
On the other hand, when 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). Hereinafter, each aspect will be described.

(1) 1st aspect 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. As a specific layer configuration of this aspect, as illustrated in FIG. 1, 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. In this case, as described above, the color filter layer is preferably disposed on the outermost surface on the side where the display unit of the electronic paper is disposed.
Moreover, in this aspect, there is also an aspect in which 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).
Furthermore, an anchor layer may be formed between the barrier layer and the base layer in order to improve adhesion.

(2) 2nd aspect 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. As a specific layer configuration of this aspect, as illustrated in FIG. 2, 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. Although not shown, 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. Moreover, the barrier layer laminated body may be arrange | positioned with respect to the color filter base material at the color filter layer side. In this case, 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. Also in this aspect, similarly to the first aspect, it is preferable that 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.
Moreover, in this aspect, there is also an aspect in which the barrier layer is a plurality of layers. In this case, 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.
Furthermore, an anchor layer may be formed between the barrier layer and the base layer in order to improve adhesion.

(3) 3rd aspect 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. As 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 ″. On the other hand, as a specific layer configuration of the latter, although not shown, a color filter substrate and a color filter layer may be laminated in this order on a thin glass plate using an adhesive layer. Also in this case, it is preferable that the color filter layer is disposed on the outermost surface on the side where the display unit of the electronic paper is disposed, as in the first and second aspects. 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.

5). Other Configurations 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.

(1) Optical functional layer In this invention, it is preferable that the optical functional layer is arrange | positioned at the outermost surface on the opposite side to the side by which the display part of electronic paper is arrange | positioned. This is because by having the optical functional layer, when the color filter member for electronic paper of the present invention is used for electronic paper, the visibility can be improved. In the present invention, 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. In FIG. 4, 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. In addition, about the code | symbol which is not demonstrated in FIG. 4, since it can be made the same as that of FIG. 1, description here is abbreviate | omitted.

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. As an optical functional layer laminate in which an optical functional layer is formed on a substrate, 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. .
As 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 substrate is not particularly limited as long as the optical functional layer can be supported, but is preferably in the range of 10 μm to 500 μm.
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. As 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.

When the color filter member for electronic paper of the present invention has an optical functional layer, 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 layerOptical functional layer, optical functional layer substrate, adhesive layer, barrier layer substrate, barrier layer, adhesive layer, color filter substrate, color filter layerOptical functional layer Optical functional layer base material, adhesive layer, color filter base material, color filter layer, adhesive layer, barrier layer, barrier layer base materialOptical functional layer, optical functional layer base material, adhesive layer, color filter base material, color filter Layer, adhesive layer, barrier layer substrate, barrier layer ・ Optical functional layer, thin glass, color filter layer ・ Optical functional layer, thin glass, adhesive layer, color filter substrate, color filter layer ・ Optical functional layer, optical functional layer Base , Adhesive layer, thin glass, color filter layer ・ Optical functional layer, optical functional layer base material, adhesive layer, thin glass, adhesive layer, color filter base material, color filter layer It is preferable that a color filter layer is disposed on the outermost surface on the other side.
Furthermore, in each layer structure, it can also be set as the layer structure which provided the adhesion layer in the side by which the display part of electronic paper is arrange | positioned.

  Examples of the optical functional layer used in the present invention 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.

(I) Antiglare layer (antiglare layer)
The antiglare layer used in the present invention has antiglare properties. For example, the antiglare layer has irregularities on the surface or has internal scattering properties, thereby exhibiting antiglare properties and improving bright place contrast. Moreover, when the color filter member for electronic paper of this invention is used for electronic paper by having an anti-glare layer, generation | occurrence | production of glare etc. can be suppressed. As such an anti-glare layer, a known anti-glare layer can be used. 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 μm to 10 μm.

(Ii) Antireflection layer (anti-reflection layer)
When the color filter member for electronic paper of the present invention is used in electronic paper, 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. As such an antireflection layer, 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.

(2) Surface protective layer In this invention, it is preferable that the surface protective layer layer is arrange | positioned at the outermost surface on the opposite side to the side by which the display part of electronic paper is arrange | positioned. By having the surface protective layer, when the color filter member for electronic paper of the present invention is used for electronic paper, scratches and dirt on the surface of the electronic paper can be prevented. In the present invention, 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. 5 is used for electronic paper, An electronic paper display unit is disposed on the color filter layer 2 side. In addition, about the code | symbol which is not demonstrated in FIG. 5, since it can be made the same as that of FIG. 1, description here is abbreviate | omitted.

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. As 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.
As 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 μm to 500 μm.
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 other adhesive layers described above.

  Regarding the layer structure of 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. In this layer configuration, 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. Hereinafter, the hard coat layer and the antifouling layer will be described.

(I) Hard coat layer 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. As such a hard coat layer, a known hard coat layer can be used. For example, the hard coat layer can be the same as that described in JP 2010-44311 A and the like. 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.

(Ii) Antifouling layer 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. In the present invention, a known antifouling layer can be used.

  The antifouling layer can be formed by applying a very thin antifouling agent and drying it. Examples of 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.

  In the present invention, 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. Among these, 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.

(3) Touch panel layer In this invention, the touch panel layer may be arrange | positioned with respect to the said color filter base material and the said color filter layer on the opposite side to the side by which the display part of electronic paper is arrange | positioned. By having the touch panel layer, when the color filter member for electronic paper of the present invention is used for electronic paper, highly convenient electronic paper capable of inputting information can be obtained by directly touching the screen.

  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. 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 touch panel layer does not peel off, and is the same as the other adhesive layers described above.

(I) Types of Touch Panel Layer As the touch panel layer used in the present invention, various methods such as a resistive film method, a capacitance method, an optical method, an electromagnetic induction method, and an ultrasonic method can be used.
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. Among them, 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.

(Ii) Arrangement Position of Touch Panel Layer 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. Although not intended, when 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. As 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, There can be mentioned two aspects: an aspect in which the touch panel layer is disposed on the outermost surface side than the color filter layer and the barrier layer, and an aspect in which the touch panel layer is disposed between the color filter layer and the barrier layer. In addition, when the color filter member for electronic paper of this invention has an optical function layer or a surface protective layer, these layers are arrange | positioned at the outermost surface of the aspect mentioned above.

  FIG. 6 is a schematic cross-sectional view illustrating an example of a color filter member for electronic paper on which a touch panel layer is formed. In FIG. 6, 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. When the filter member 10 is used for electronic paper, an electronic paper display unit is disposed on the color filter layer 2 side. In addition, 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. In addition, about the code | symbol which is not demonstrated in FIG. 6, since it can be the same as that of FIG. 1, description here is abbreviate | omitted.

(4) Transparent electrode layer In this invention, the transparent electrode layer may be arrange | positioned with respect to the said color filter base material at the side by which the display part of electronic paper is arrange | positioned.

  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. For example, indium tin oxide (ITO), indium zinc oxide (IZO) 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. Among them, 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 method for forming 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. As a method for forming such a transparent electrode layer, a general electrode film forming method can be used. For example, a PVD method such as a vacuum deposition method, a sputtering method, an ion plating method, a CVD method, a conductive paste The method of apply | 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. As 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.
As a transparent electrode layer base material used for this invention, the thing similar to the color filter base material mentioned above can be used. Although it will not specifically limit as thickness of the said transparent electrode layer base material if a transparent electrode layer can be supported, It is preferable to exist in the range of 10 micrometers-500 micrometers.
In addition, 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. 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 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 | position at the outermost surface of the arrangement | positioning side. This is because the display characteristics of electronic paper using the color filter member for electronic paper of the present invention can be improved by bringing the transparent electrode layer and the display portion closer to each other. In addition, when the transparent electrode layer laminated body mentioned above is arrange | positioned on the outermost surface of the side by which the display part of electronic paper is arrange | positioned, a transparent electrode layer may be the outermost surface, and a transparent electrode layer base material is It may be the outermost surface. In the color filter member for electronic paper of the present invention, 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.

(5) Display medium layer In this invention, the display medium layer may be arrange | positioned with respect to the said transparent electrode layer at the side by which the counter electrode board | substrate of electronic paper is arrange | positioned.

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.
As 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. In the present invention, among them, 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.
In 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.
In the microcup method, 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 for general electronic paper of each display method.

  Hereinafter, a display medium layer in the case where the color filter member for electronic paper of the present invention is used for microcapsule type electronic paper will be described as an example. As such 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.

  Examples of the transparent dispersion medium 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.

As the white particles, for example, white pigments such as titanium dioxide, zinc white, and antimony trioxide can be used. As the black particles, for example, black pigments such as aniline black, carbon black, and titanium black can be used. .
Further, if necessary, 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.

  As a material for forming the wall film of the microcapsule, for example, a compound such as a gum arabic / gelatin composite film, a urethane resin, a urea resin, or a urea resin can be used.

  As the 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. For example, 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 an ink obtained by dispersing microcapsules in a binder resin 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. As a display medium layer laminate in which layers are formed, the transparent electrode layer may be disposed on the side where the counter electrode substrate of electronic paper is disposed.
As 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 substrate is not particularly limited as long as the display medium layer can be supported, but is preferably in the range of 10 μm to 500 μm.
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. 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 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 | positioned at the outermost surface of the side by which is arrange | positioned. This is because the display characteristics of electronic paper using the electronic paper color filter member of the present invention can be improved by bringing the display medium layer and the counter electrode substrate closer to each other. When the above-described display medium layer laminate is disposed on the outermost surface on the side where the counter electrode substrate of electronic paper is disposed, the display medium layer may be the outermost surface, and the display medium layer base material May be the outermost surface.

6). 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. 8)
Optical function layer, barrier layer, color filter substrate, barrier layer, color filter layer, adhesive layerOptical function layer, barrier layer, barrier layer substrate, barrier layer, adhesive layer, color filter substrate, color filter layer, Adhesive layer ・ Barrier layer, color filter substrate, barrier layer, color filter layer, adhesive layer, transparent electrode layer substrate, transparent electrode layer, display medium layer ・ Barrier layer, barrier layer substrate, barrier layer, adhesive layer, color Filter base material, color filter layer, adhesive layer, transparent electrode layer base material, transparent electrode layer, display medium layerOptical function layer, barrier layer, color filter base material, barrier layer, color filter layer, adhesive layer, transparent electrode layer Base material, transparent electrode layer, display medium layer Optical function layer, barrier layer, barrier layer base material, barrier layer, adhesive layer, color filter base material, color filter layer, adhesive layer, transparent electrode layer base material, transparent electrode layer , table With these layers constituting the medium layer, the display medium is protected from moisture or water vapor, also improves visibility, the electronic paper for color filter member capable of obtaining a good display characteristics. 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. The description here is omitted.

B. Next, the electronic paper of the present invention will be described. 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. Are arranged, the counter electrode layer, with respect to the counter substrate, and is characterized in that it is arranged in the display medium layer side.

  The electronic paper of the present invention will be described with reference to the drawings. 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. Moreover, 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). And 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.

  According to the present invention, 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.

In the present invention, 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.

1. Counter electrode substrate The counter electrode substrate used in the present invention has a counter base material and a counter electrode layer formed on the counter base material.

(1) Counter electrode layer 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. By using the former, a passive matrix electronic paper can be obtained, and by using the latter, an active matrix electronic paper can be obtained. Among these, in the present invention, it is preferable to use the TFT electrode layer. This is because an active matrix electronic paper with high contrast and high response speed can be obtained.

Such a TFT electrode layer will be specifically described with reference to the drawings. 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. In the TFT electrode layer 12 ′, 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. For example, the TFT element may have an a-Si TFT structure or a p-Si TFT structure. It may be. In the case of 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. In the case of an inverted stagger type, either a channel etch type or a channel protect type may be used. On the other hand, in the case of a TFT element having a p-Si TFT structure, either 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. For example, silicon, an oxide semiconductor, or an organic semiconductor is used.

As the silicon, polysilicon or amorphous silicon can be used.
Examples of 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). ), Indium oxide (In ₂ O ₃ ), gallium oxide (Ga ₂ O ₃ ), tin oxide (SnO ₂ ), magnesium oxide (MgO), tungsten oxide (WO), InGaZnO-based, InGaSnO-based, InGaZnMgO-based, InAlZnO-based InFeZnO, InGaO, ZnGaO, and InZnO can be used.
Examples of organic semiconductors include π-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 method for forming the semiconductor layer and the thickness thereof can be the same as those in general.

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. For example, silicon oxide, silicon nitride, aluminum oxide, tantalum oxide, barium strontium titanate (BST) ), Insulating inorganic materials such as lead zirconate titanate (PZT), acrylic resins, phenolic resins, fluorine resins, epoxy resins, cardo resins, vinyl resins, imide resins, novolac resins 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. For example, the semiconductor layer can be prevented from being exposed to moisture or the like contained in the air. By forming the protective film, deterioration of the TFT performance with time can be reduced. For example, 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.

(2) Counter substrate The counter substrate used in the present invention supports the counter electrode layer. Such 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.

2. Electronic paper In the electronic paper of the present invention, usually, 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. And 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. As 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.
In addition, about the layer structure of the color filter member for electronic paper, since any layer structure described in the above-mentioned item of "A. Color filter member for electronic paper" can be used, description here is abbreviate | omitted.

As described above, the electronic paper of the present invention can have various layer configurations. Among these, in the present invention, examples of preferable layer structures include the following.
Barrier layer 3, color filter substrate 1, barrier layer 3, color filter layer 2, adhesive layer 4, transparent electrode layer substrate 8 ′, transparent electrode layer 8, display medium layer 9, adhesive layer 4, counter electrode layer 12 , Counter substrate 11 (see FIG. 11)
Barrier layer 3, barrier layer substrate 3 ′, barrier layer 3, adhesive layer 4, color filter substrate 1, color filter layer 2, adhesive layer 4, transparent electrode layer substrate 8 ′, transparent electrode layer 8, display medium Layer 9, adhesive layer 4, counter electrode layer 12, counter substrate 11 (see FIG. 12)
・ Optical function layer, barrier layer, color filter substrate, barrier layer, color filter layer, adhesive layer, transparent electrode layer substrate, transparent electrode layer, display medium layer, adhesive layer, counter electrode layer, counter substrate ・ Optical function Layer, barrier layer, barrier layer substrate, barrier layer, adhesive layer, color filter substrate, color filter layer, adhesive layer, transparent electrode layer substrate, transparent electrode layer, display medium layer, adhesive layer, counter electrode layer, opposite Substrate With these layer structures, an electronic paper is realized in which the display medium is protected from moisture and water vapor, visibility is improved, and good display characteristics can be obtained. 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.

C. Next, the manufacturing method of the color filter member for electronic paper of this invention is demonstrated. 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.

  According to the present invention, 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. .

  Hereinafter, each process in the manufacturing method of the color filter member for electronic paper of this invention is demonstrated.

1. Color filter member forming step for electronic paper The color filter member forming step for electronic paper in the present invention 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.

  In this step, 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 Using at least one set of the optical functional layer laminate having the optical functional layer formed thereon or the surface protective layer laminate having the surface protective layer formed on the surface protective layer base material, 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. And 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. There are four main modes: a mode in which the laminate is bonded (third mode) and a mode in which the barrier layer stack is bonded to the optical functional layer stack or the surface protective layer stack (fourth mode). The process can be divided. In these embodiments, 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. Hereinafter, each aspect will be described.

(1) 1st aspect 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.
In this aspect, first, the long color filter layer laminate and the long barrier layer laminate are formed. Next, these laminates are bonded together by a roll-to-roll method.
When 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. -Before bonding by a roll system, you may form an optical function layer or a surface protective layer on any laminated body.
In addition, 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. You may affix together with the sheet-like optical functional layer laminated body in which the functional layer was formed, or the sheet-like surface protective layer laminated body in which the surface protective layer was formed on the surface protective layer base material.
Furthermore, 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. .

(2) 2nd aspect 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.
In the present invention, since 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. Before the protective layer laminate is bonded to the laminate by a roll-to-roll method, a barrier layer is formed on any laminate.
Also, 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.
Further, 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. In addition, a barrier layer may be formed.
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. .

(3) Third Aspect 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.
In this embodiment, first, the elongated color filter layer laminate, the elongated barrier layer laminate, the elongated optical functional layer laminate or the elongated surface protective layer laminate. And form. Next, these laminated bodies are bonded together by a roll-to-roll method. At that time, 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. .

(4) Fourth Aspect 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. In this embodiment, 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. .

2. Touch panel layer laminating step In the present invention, the above-described color filter member forming step for electronic paper aligns and bonds 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. When the color filter member for electronic paper produced by the present invention has a touch panel layer, 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.

  Since the arrangement position of the touch panel layer laminated in this step is described in the above-mentioned section “A. Color filter member for electronic paper”, description thereof is omitted here.

In this process, since the positional accuracy of the touch panel layer and the color filter layer is required, 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.・ Use the sheet method. Specifically, a member including a color filter layer among the members described in the first aspect, the second aspect, the third aspect, or the fourth aspect described in “1. 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.
In addition, 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. For example, in a vacuum chamber, 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 mixing on the bonding surface, and can be set, for example, within a range of 50 Pa to 10,000 Pa.

  The method for laminating with alignment by the sheet-to-sheet method is not particularly limited. For example, 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. A method of laminating by performing alignment by using alignment marks formed in advance on both members and pressing both members through an adhesive layer can be exemplified.

  In addition, about the layer structure of the color filter member for electronic paper which has the touch-panel layer laminated | stacked by this process, since it is the same as that of what was described in the above-mentioned item of "A. Color filter member for electronic paper," here Description is omitted.

D. Next, the manufacturing method of the electronic paper of this invention is demonstrated. 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.

  According to the present invention, 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. And 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. Moreover, the electronic paper excellent in the color display characteristic can be obtained by using the said color filter member for electronic paper.

  In addition, since it described in detail in the said "C. manufacturing method of the color filter member for electronic paper" about the color filter member formation process for electronic paper, description here is abbreviate | omitted. Hereinafter, other steps in the method for producing electronic paper of the present invention will be described.

1. Color filter member forming step for electronic paper with display section In the color filter member forming step for electronic paper with display section in the present invention, the color filter member for electronic paper is provided with a display section including a transparent electrode layer and a display medium layer. In this step, 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 step 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. When the said display part has 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.
As 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. Although it will not specifically limit as thickness of the said display part base material if a transparent electrode layer and a display medium layer can be supported, It is preferable to exist in the range of 10 micrometers-500 micrometers.
Moreover, 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. As 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. When 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.

In this invention, according to the structure of a display part, 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.
In the aspect which does not have 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. Can be divided into
In an embodiment having only the display unit base material, first, a display unit laminate in which a transparent electrode layer and a display medium layer are formed on the display unit base material is formed. Next, the said display part laminated body and the said color filter member for electronic paper are bonded together using an adhesion layer.
In an embodiment having a display part base material and a transparent electrode layer base material, first, 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. Next, using the adhesive layer, the transparent electrode layer laminate and the display medium layer laminate are bonded together to form a display unit laminate. Furthermore, the said display part laminated body and the said color filter member for electronic paper are bonded together using an adhesion layer.
In addition, when the color filter member for electronic paper does not have a touch panel layer, it is also possible to use a roll-to-roll method when bonding a display part laminated body and a color filter member for electronic paper.

  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. Although it is not a thing, it is preferable that the display part is arrange | positioned with respect to the color filter base material on the same side as the side in which a color filter layer is formed. This is because, when the color filter layer and the display unit are brought close to each other, when the color filter member for electronic paper with a display unit of the present invention is used for electronic paper, the display characteristics of the electronic paper can be improved.

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.
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.

  In addition, about the layer structure of the color filter member for electronic paper, since any layer structure described in the above-mentioned item of "A. Color filter member for electronic paper" can be used, description here is abbreviate | omitted.

2. Bonding step In the bonding step of the present invention, 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. In 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.

  In this step, 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. For example, in a vacuum chamber, 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 | substrate is performed using the alignment mark previously formed in both members, The method of bonding together by pressing both members through an adhesion layer etc. can be mentioned. 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”.

3. Arbitrary process 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. As such 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.

4). 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.

DESCRIPTION OF SYMBOLS 1 ... Color filter base material 2 ... Color filter layer 3 ... Barrier layer 4 ... Adhesive layer 5 ... Optical function layer 6 ... Surface protective layer 7 ... Touch panel layer 8 ... Transparent electrode layer 9 ... Display medium layer 10 ... Color filter for electronic paper Member 11 ... Counter substrate 12 ... Counter electrode layer 13 ... Counter electrode substrate 20 ... Electronic paper

Claims (9)

A display medium layer is disposed between two opposing substrates, at least one of which is transparent, and the display medium layer is a color filter member for electronic paper used for electronic paper displaying predetermined information,
A color filter substrate;
A color filter layer formed on one surface side of the color filter base material and provided with a plurality of colored layers;
A color filter member for electronic paper, comprising: a barrier layer disposed on at least one surface side of the color filter substrate.   The color filter member for electronic paper according to claim 1, wherein 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 touch panel layer is disposed on a side opposite to a side on which a display unit of electronic paper is disposed with respect to the color filter base material and the color filter layer. Color filter member for electronic paper.   The transparent electrode layer is arrange | positioned with respect to the said color filter base material at the side by which the display part of electronic paper is arrange | positioned, The claim in any one of Claim 1 to 3 characterized by the above-mentioned. Color filter member for electronic paper.   5. The color filter member for electronic paper according to claim 4, wherein the display medium layer is disposed on the side where the counter electrode substrate of the electronic paper is disposed with respect to the transparent electrode layer. Color filter base material, color filter layer formed on one surface side of the color filter base material and having a plurality of colored layers, and a barrier layer disposed on at least one surface side of the color filter base material An electronic paper having a color filter member for electronic paper, 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;
The transparent electrode layer is disposed on the counter electrode substrate side with respect to the color filter substrate,
The display medium layer is disposed on the counter electrode substrate side with respect to the transparent electrode layer,
The electronic paper, wherein the counter electrode layer is disposed on the display medium layer side with respect to the counter substrate.   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 a barrier layer disposed on at least one surface side of the color filter substrate. The manufacturing method of the color filter member for electronic paper characterized by having the color filter member formation process for electronic paper which forms the color filter member for electronic paper which has it by a roll-to-roll system.   The electronic paper color filter member forming step includes a touch panel layer lamination step in which the touch panel layer is aligned and bonded under vacuum by a sheet-to-sheet method, or the touch panel layer is aligned and laminated by a sheet-to-sheet method. The method for producing a color filter member for electronic paper according to claim 7, comprising: A color filter member forming step for electronic paper, wherein the color filter member for electronic paper according to claim 1 or 2 is formed by a roll-to-roll method;
A display unit including a transparent electrode layer and a display medium layer on the electronic paper color filter member, and the display medium layer is disposed on one surface of the electronic paper color filter member via the transparent electrode layer. Forming a color filter member for electronic paper with a display unit, and forming a color filter member for electronic paper with a display unit,
The color filter member for electronic paper with a display unit, and a counter electrode substrate having a counter substrate and a counter electrode layer formed on the counter substrate, the counter electrode layer with respect to the counter substrate, A bonding step of performing alignment bonding under vacuum by a sheet-to-sheet method so as to be arranged on the display medium layer side of the color filter member for electronic paper with a display unit. Manufacturing method.

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