JP2014081523A - Manufacturing method of color filter for display - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of forming a color filter for a display by which a shape of a coloring image can be controlled to present a color filter of excellent quality, even when application of coloring ink is performed in on-demand printing including an ink jet method and a dispense method irrespective of a short manufacturing process.SOLUTION: Pixel formation is performed by printing at a predetermined position on a substrate through a mask having a through hole corresponding to a pixel pattern so as to form a color filter for a display.

Description

  The present invention relates to a method for manufacturing a color filter for display display, and more particularly to a reflective display such as electronic paper.

  In display displays, the use of color filters for purposes such as color display, reflectance reduction, contrast improvement, and spectral characteristic control is a useful means. The color filter used for this display is composed of fine colored pixels. As methods for forming the pixels of the color filter, methods that have been practically used include photolithography and ink jet printing.

  For example, the photolithography method is a method of forming by repeating the steps of coating → pattern exposure → development → thermosetting. The method is excellent in quality, but the manufacturing process is long and the manufacturing facilities are large. Further, since the portions other than the pattern are removed during the pattern exposure in the development process, the cost is increased due to the low use efficiency of the material.

On the other hand, the ink-jet printing method is a printing technique typified by a printer of a peripheral device of a personal computer, but in recent years, application development in industrial applications in various fields is expected. As an advantage, the necessary amount can be pattern-printed in a necessary portion, that is, on-demand printing, so that the consumption of materials is minimized and the burden on the environment is extremely small. Furthermore, since the steps such as development and etching are not required, the characteristics of the material are not deteriorated due to chemical influence.

  Against this background, many techniques for applying the inkjet printing method to the production of color filters have been proposed. However, in ink-jet printing, ink forms droplets to form an image, so an image formed with one droplet has a circular shape. For this reason, it is difficult to form an image in accordance with the pixels of the rectangular display, and the quality of the color filter is degraded.

JP 2006-163233 A

  An object of the present invention is to provide a display capable of controlling the shape of a colored image and providing an excellent quality color filter even in a short manufacturing process even when the colored ink is subjected to on-demand printing such as an inkjet method or dispensing. The object is to provide a method of forming a color filter for a display.

  In order to achieve the above object in the present invention, first, in the first invention, by forming a pixel by printing at a predetermined position on the substrate through a mask having a through hole corresponding to the pixel pattern, a color for a display display is obtained. A method of manufacturing a color filter for display display, characterized by forming a filter.

  Next, in the second invention, the color filter for display display according to the first invention, wherein an adsorption layer having an adsorptivity with the substrate is formed on a surface of the mask in contact with the substrate. The manufacturing method is as follows.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the display display color is characterized in that an absorption layer having ink absorptivity is formed on the surface of the mask in contact with the substrate. A method for manufacturing a filter is provided.

  Next, in a fourth invention, in any one of the first to third inventions, a liquid repellent layer having liquid repellency with respect to ink is formed on a portion other than the surface in contact with the substrate of the mask. It is set as the manufacturing method of the color filter for display displays characterized by these.

  Next, in a fifth invention, in any one of the first to fourth inventions, an image-receiving layer having ink absorptivity is formed on the substrate. Let it be a manufacturing method.

  Next, a sixth invention is characterized in that in any one of the first to fifth inventions, at least two alignment marks for alignment are provided at the relative positions of the mask and the substrate. It is set as the manufacturing method of the color filter for display displays.

  Next, according to a seventh invention, in any one of the first to sixth inventions, the substrate is a display assembled in advance, and the pixel is formed at a position corresponding to a display pixel portion on the display surface. A method for producing a color filter for display display is provided.

  Since the present invention has the above features, the following effects are obtained.

  That is, according to the first aspect of the present invention, pixel formation is performed by selective printing at a desired position through a mask having a through hole corresponding to the pixel pattern at a predetermined position on the substrate. By manufacturing the filter, a color filter having excellent shape stability and environmental resistance can be obtained. Without a mask, it is not preferable because it is difficult to control the shape of the printed image and the quality of the color filter deteriorates.

  In other words, according to the second aspect of the present invention, the color filter having excellent printing position accuracy can be obtained by forming the adsorption layer having the adsorptivity with the substrate on the surface of the mask in contact with the substrate. When the adsorption layer is not formed, the substrate and the mask are displaced during printing, the printing position accuracy is lowered, and the quality of the color filter is deteriorated. Further, when the adsorption layer is not formed, there is a possibility that the substrate and the mask are not sufficiently adhered and the ink flows into the gap.

  In other words, according to the third aspect of the present invention, an absorption layer having ink absorptivity is formed on the surface of the mask in contact with the substrate, whereby a color filter having excellent shape stability can be obtained. When the absorption layer is not provided, ink sneak occurs between the mask and the substrate, and the printed shape deteriorates.

  In addition, according to the fourth aspect of the present invention, the liquid repellent layer having liquid repellency with respect to the ink is formed on the portion other than the surface in contact with the substrate of the mask, so that the color filter having excellent shape stability. It can be. When the liquid repellent layer is not provided, the ink is fixed to the mask, and printing with a desired shape cannot be performed.

  In addition, according to the fifth aspect of the present invention, since the image receiving layer having ink absorptivity is formed on the substrate, the ink fixing property to the substrate can be enhanced.

  In other words, according to the sixth aspect of the present invention, at least two alignment marks for alignment are provided at the relative positions of the mask and the substrate, so that the printing position accuracy on the substrate is improved.

  In addition, according to the seventh invention, the substrate is a display assembled in advance, and the pixel formation is performed at a position corresponding to the display pixel portion on the display surface, so that the pixel position accuracy is excellent. It becomes a thin display. When the color filter substrate and the display display are separately manufactured, it is necessary to bond the color filter and the display display, and it is difficult to bond the pixels while aligning high-definition pixels, and the position accuracy deteriorates.

The side sectional view showing the embodiment of the present invention and explaining the example of the formation method of the mask used for manufacture of the color filter for display displays 1 is a side sectional view for explaining an embodiment of a method for forming a color filter for display display using the mask of FIG. 1 is a side sectional view for explaining another embodiment of a method for forming a color filter for display using the mask of FIG. 1 is a side cross-sectional view illustrating an embodiment of the present invention and explaining the principle of a method of forming a mask used for manufacturing a color filter for a display display

  Hereinafter, embodiments for carrying out the present invention will be described in detail.

  The base material of the substrate on which the color filter for display display used in the present embodiment is formed is preferably glass having sufficient strength, flatness, heat resistance, light transmission, flexibility, and a resin film. Examples of the resin film include polyethylene terephthalate, polyethylene naphthalate, polymethyl methacrylate, polycarbonate, polysulfone, polyethersulfone, polycycloolefin, acrylic crosslinkable resin, epoxy crosslinkable resin crosslinkable resin, unsaturated polyester crosslink A film substrate made of a functional resin can be used. Moreover, it is preferable to use a resin and an inorganic substance in combination since the linear expansion coefficient can be reduced.

  In this embodiment, a color filter for display display is formed by forming a pixel by printing such as ink jet at a predetermined position on the substrate through a mask having a through hole corresponding to the pixel pattern. Thereby, a color filter excellent in shape stability and environmental resistance can be obtained. Without a mask, it is not preferable because it is difficult to control the shape of the printed image and the quality of the color filter deteriorates. As a mask material used in this embodiment, any material can be used as long as a through hole corresponding to the pixel size can be processed, such as a metal plate, a resin plate, a glass plate, etc., but from the viewpoint of workability and dimensional accuracy. Therefore, an iron-based metal plate (iron, iron-nickel alloy, etc.) is most preferable.

  In addition, as a method of processing a pixel-sized through hole in a mask material, a method of directly processing with a carbon dioxide laser or the like, and a method of etching with a chemical through an etching resist can be mentioned, but from the viewpoint of pattern accuracy and shape Considering the latter, the latter is preferable.

  As resist materials, especially when using iron-based metals (iron, iron-nickel alloys, etc.) as mask materials, cinnamate esters and azide-based resist photosensitive materials mainly composed of polyisoprene are used. In addition, a ferric chloride solution is used as an etching solution, and a chemical etching method or an electrolytic etching method can be applied as the method.

  The size of the through hole corresponding to the pixel pattern is usually about 0.10 mm to 0.15 mm, and about 0.07 mm to 0.09 mm in the case of high definition. The plate thickness of the mask material is about 0.1 mm to 0.2 mm in order to suppress mask strength and thermal expansion.

  An adsorption layer having an adsorptivity with the substrate may be formed on a surface of the mask that contacts the substrate on which the color filter for display display is formed. Thereby, a color filter excellent in printing position accuracy can be obtained. When the adsorption layer is not formed, the substrate and the mask are displaced during printing, the printing position accuracy is lowered, and the quality of the color filter is deteriorated. Further, when the adsorption layer is not formed, there is a possibility that the substrate and the mask are not sufficiently adhered and the ink flows into the gap. The adsorption layer applied to the mask is preferably a rubber-based material having cushioning properties, and examples thereof include silicone rubber and fluorine-based rubber. Moreover, you may use it, such as mixing a fluororesin fine powder with silicone rubber or normal rubber.

  The adsorption layer is preferably provided with a film thickness of approximately 2 to 20 μm. If the thickness is 2 μm or less, the cushioning property is insufficient, and the adsorptivity to the substrate is insufficient. On the other hand, the thickness of 20 μm or more is not preferable because the thickness of the pixel becomes too thick.

  An absorption layer having ink absorptivity may be formed on the surface of the mask in contact with the substrate on which the color filter for display display is formed. Thereby, it can be set as the color filter excellent in shape stability. When the absorption layer is not provided, ink sneak occurs between the mask and the substrate, and the printed shape deteriorates. As the absorbing layer applied to the mask, a resin material that absorbs ink appropriately is preferable. Specifically, polyacrylic acid ester, polymethacrylic acid ester, polyethylacrylic acid ester, styrene-butadiene copolymer, butadiene copolymer are used. Polymer, acrylonitrile-butadiene copolymer, chloroprene copolymer, crosslinked acrylic resin, crosslinked styrene resin, fluorine resin, vinylidene fluoride, benzoguanamine resin, phenol resin, polyolefin resin, cellulose, styrene-acrylate copolymer, Styrene-methacrylate copolymer, polystyrene, styrene-acrylamide copolymer, n-isobutyl acrylate, acrylonitrile, vinyl acetate, acrylamide, silicone resin, polyvinyl acetal, polyamide, logistic Resin, polyethylene, polycarbonate, vinylidene chloride resin, polyvinyl alcohol, polyvinylpyrrolidone, cellulose resin, epoxy resin, vinyl acetate resin, ethylene-vinyl acetate copolymer, vinyl acetate-acrylic copolymer, vinyl chloride resin, polyurethane resin And polyester resins.

  The thickness of the absorption layer is preferably about 2 to 20 μm. If the thickness is 2 μm or less, the ink absorbency is insufficient when forming the pixel, and the pixel shape may be distorted. On the other hand, when the thickness is 20 μm or more, the amount of ink used is remarkably increased and the film thickness of the pixel becomes too thick.

  A liquid repellent layer having liquid repellency with respect to ink may be formed on a portion of the mask other than the surface in contact with the substrate on which the color filter for display display is formed. Thereby, it can be set as the color filter excellent in shape stability. When the liquid repellent layer is not provided, the ink is fixed to the mask, and printing with a desired shape cannot be performed. As the liquid repellent layer applied to the mask, a release agent represented by silicone oil and silicone varnish is preferable. Specific silicones include dimethylpolysiloxanes with various molecular weights, other methylhydropolysiloxanes, methylphenylsilicone oils, methylchlorinated phenylsilicone oils, or copolymers of these polysiloxanes with organic compounds. Can be used. Silicone rubber is a combination of two-component diorganopolysiloxane and a tri- or higher functional silane as a crosslinking agent, or a combination of siloxane and a curing catalyst, or one-component diorganopolysiloxane, acetone oxime, and various methoxys. Combinations of silane, methyltriacetoxysilane, and the like are used, and other polysiloxanes for adjusting rubber hardness are appropriately used. For the same purpose, a fluorine resin or a fluorine rubber can also be used.

  The film thickness of the liquid repellent layer is preferably in a range in which the function of causing the contact angle of the solvent in the ink to be 100 ° or more, and is preferably approximately 0.05 to 5 μm. If it is 0.05 μm or less, it is difficult to ensure liquid repellency with a contact angle of 100 ° or more, and there is a concern about the spread of pixels. If the thickness is 5 μm or more, the pixel printing accuracy may be lowered, which is not preferable.

  An image receiving layer having ink absorptivity may be formed on a substrate on which a display display color filter is formed. Thereby, the ink fixing property to a board | substrate can be improved. As a material for the image receiving layer in the present embodiment, a coating composition containing a resin and a solvent as main components and optionally added with fine particles can be used. The material constituting the image receiving layer of the present embodiment is required to have performance such as transparency, excellent absorption of solvent components in the ink, and excellent fixability of the coloring material, and no discoloration or discoloration. Is done. Resins include polyacrylate, polymethacrylate, polyethylacrylate, styrene-butadiene copolymer, butadiene copolymer, acrylonitrile-butadiene copolymer, chloroprene copolymer, crosslinked acrylic resin, crosslinked Styrene resin, fluororesin, vinylidene fluoride, benzoguanamine resin, phenol resin, polyolefin resin, cellulose, styrene-acrylate copolymer, styrene-methacrylate copolymer, polystyrene, styrene-acrylamide copolymer, n -Isobutyl acrylate, acrylonitrile, vinyl acetate, acrylamide, silicone resin, polyvinyl acetal, polyamide, rosin resin, polyethylene, polycarbonate, vinylidene chloride resin, polyvinyl chloride Examples include alcohol, polyvinyl pyrrolidone, cellulosic resin, epoxy resin, vinyl acetate resin, ethylene-vinyl acetate copolymer, vinyl acetate-acrylic copolymer, vinyl chloride resin, polyurethane resin, and polyester resin. Is not to be done. These resins can be used as a curable polymer by adding a reactive site such as an acryl group, a carboxyl group or an isocyanate group, and further adding a crosslinking agent, a photoinitiator or the like, if necessary.

  The thickness of the image receiving layer is usually about 1 to 20 μm, preferably about 2 to 10 μm. The ink receiving layer is formed by applying a coating solution in which the above main agent and curing agent are mixed in an appropriate equivalent ratio to at least one surface of the support by known coating means such as gravure coating, roll coating, and wire bar coating. Just work.

  As a method for forming the adsorption layer, the absorption layer, the liquid repellent layer, and the image receiving layer applied to the substrate described above, a known coating method can be used depending on the viscosity of the ink and the drying property of the solvent. Examples include spin coating, dipping, roll coating, gravure coating, reverse coating, air knife coating, comma coating, die coating, screen printing, spray coating, and gravure offset. Among them, the die coat, cap coat, roll coat, and applicator can form a uniform ink liquid film for ink having a wide range of viscosity.

  The colored ink used for pixel formation in the present invention is composed of a color pigment, a resin, a dispersant, a solvent, and the like.

  Specific examples of the pigment used as the colorant include Pigment Red 9, 19, 38, 43, 97, 122, 123, 144, 149, 166, 168, 177, 179, 180, 192, 215, 216, 208, 216. 217, 220, 223, 224, 226, 227, 228, 240, Pigment Blue 15, 15: 6, 16, 22, 29, 60, 64, Pigment Green 7, 36, Pigment Red 20, 24, 86, 81, 83, 93, 108, 109, 110, 117, 125, 137, 138, 139, 147, 148, 153, 154, 166, 168, 185, Pigment Orange 36, Pigment Violet 23, and the like. Be done Not to. Further, these may be used in combination of two or more in order to obtain the desired hue.

  Solvent types used in colored inks include ethylene glycol, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether, ethylene glycol dibutyl ether, ethylene glycol monobutyl ether acetate, ethylene glycol isoamyl ether, ethylene glycol monophenyl ether, ethylene glycol mono Hexyl ether, methoxymethoxyethanol, ethylene glycol monoacetate, ethylene glycol diacetate, diethylene glycol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monoethyl ether acetate, diethylene glycol monobutyl ether, diethylene glycol monobutyl ether Acetate, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol monoacetate, triethylene glycol monomethyl ether, propylene glycol, propylene glycol monobutyl ether, propylene glycol monoacetate, dipropylene glycol, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, tri Although propylene glycol monomethyl ether etc. can be mentioned, it is not limited to these, The solvent which satisfy | fills the said requirements can be used. Moreover, you may mix and use 2 or more types of solvents as needed.

  As the resin of the colored ink in the present invention, casein, gelatin, polyvinyl alcohol, carboxymethyl acetal, polyimide resin, acrylic resin, epoxy resin, melamine resin and the like are used, and are appropriately selected in relation to the pigment. . An acrylic resin is preferable when heat resistance and light resistance are required.

  In order to improve the dispersion of the dye in the resin, a dispersant may be used. As the dispersant, as the nonionic surfactant, for example, polyoxyethylene alkyl ether, etc., and as the ionic surfactant Examples thereof include sodium alkylbenzene sulfonate, poly fatty acid salt, fatty acid salt alkyl phosphate, tetraalkyl ammonium salt, and other organic pigment derivatives and polyester. One type of dispersant may be used alone, or two or more types of dispersants may be mixed and used. As the solvent, in addition to solubility, stability over time, drying property, and the like are required, and the solvent is appropriately selected in relation to the dye and the resin.

  An example of a method for manufacturing a mask having a through hole is shown in FIG. First, a photosensitive resist is applied to both surfaces of the metal plate 1, the both surfaces are positioned through a photomask having a desired pattern, exposure and development are performed, and an etching resist film 2 having a desired pixel pattern is provided. (A in FIG. 4). Etching is performed from both surfaces using an etching solution 20 (etchant) to form through holes 30 (b and c in FIG. 4). Thereafter, the etching resist film 2 is removed to form a mask (d in FIG. 4). The mask can be configured to be appropriately combined with other layers such as the liquid repellent layer, the adsorption layer, and the absorption layer. A color filter for display display is formed by performing pixel formation by printing such as ink jet at a predetermined position on the substrate through a mask having through holes corresponding to the pixel pattern thus obtained.

  In addition, the color filter formed according to the present embodiment can be cured by energy such as heat, light, or electron beam for the purpose of improving the durability after the pixels are formed.

  As the ink jet device to be used, there are a piezo conversion method and a heat conversion method depending on the difference in the ink ejection method, and the piezo conversion method is particularly preferable. A device in which the ink particleization frequency is about 1 to 100 KHz, the nozzle diameter is about 5 to 80 μm, three heads are arranged, and 100 to 500 nozzles are incorporated in one head is suitable. Moreover, you may perform hardening, such as a heating, after formation of a colored layer as needed.

  Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to these examples.

<Example 1>
~ Formation of metal mask ~
The metal mask forming process of this embodiment will be described with reference to the sectional side view of FIG. As the mask substrate, a metal plate 1 (iron-nickel alloy) having a thickness of 0.15 mm was used (a in FIG. 1). An etching resist film 2 (cinnamic acid ester-based positive or negative photosensitive material) was applied to the entire front and back surfaces of the metal plate 1 and then temporarily dried (b in FIG. 1). Subsequently, the photomask 3 on which a desired color filter pattern (150 μm square pattern) is drawn is used to perform pattern exposure after aligning the front and back surfaces (c in FIG. 1), developing with an alkali developer, and washing with water. In the same manner, the resist at the site where the through hole is to be formed was removed (d in FIG. 1). Further, the metal plate 1 on which the etching resist film 2 is patterned is immersed in an etching solution (ferric chloride solution), and the pattern portion of the metal plate 1 is etched to form a through hole (FIG. 1). e). Finally, the etching resist film 2 was stripped with an alkali solution or an organic solvent to obtain a metal plate mask (f in FIG. 1).

-Formation of liquid repellent layer-
A liquid repellent (fluorine coating agent) was applied to the surface of the obtained metal plate mask to which the colored ink was applied and dried to provide a liquid repellent layer 4 (g in FIG. 1).

-Formation of adsorption layer-
An adsorbent (silicone rubber-based coating agent) is applied to the surface of the metal plate mask that contacts the substrate (the surface opposite to the surface on which the liquid repellent layer 4 is provided) and dried to provide the adsorbing layer 5 to obtain the metal mask 6. (H in FIG. 1).

~ Formation of color filter ~
The color filter forming process of this embodiment will be described with reference to the side sectional view of FIG. The PEN film 7 (100 μm thick) was used as the color filter substrate (a in FIG. 2). The prepared metal mask 6 is arranged on the PEN film 7 so that the adsorption layer 5 is on the PEN film 7 side (b in FIG. 2), and 150 pl of color ink 8 is printed by an inkjet device per one pixel of the mask pattern. Thus, a color filter pattern was formed (c in FIG. 2). Thereafter, the metal mask 6 was removed, the color filter was placed in an oven at 80 ° C., and the color ink 8 was dried. This was performed for three colors of red, green, and blue inks to obtain a color filter 9 (d in FIG. 2). When the produced color filter was observed, it was a color filter having a coloring rate of 95% or more with respect to the desired pixel pattern (150 μm square) and having no color mixture with adjacent pixels.

<Example 2>
~ Formation of metal mask ~
The metal mask forming process of this embodiment will be described with reference to the sectional side view of FIG. As the mask substrate, a metal plate 1 (iron-nickel alloy) having a thickness of 0.15 mm was used (a in FIG. 1). An etching resist film 2 (cinnamic acid ester-based positive or negative photosensitive material) was applied to the entire front and back surfaces of the metal plate 1 and then temporarily dried (b in FIG. 1). Then, after aligning the front and back through a photomask 3 on which a desired color filter pattern (150 μm square pattern) is drawn, pattern exposure is performed (c in FIG. 1), development with an alkali developer, and water washing The resist of the part which forms a through hole was removed by processing etc. (d of Drawing 1). Further, the metal plate 1 on which the etching resist film 2 is patterned is immersed in an etching solution (ferric chloride solution), and the pattern portion of the metal plate 1 is etched to form a through hole (FIG. 1). e). Finally, the etching resist film 2 was stripped with an alkali solution or an organic solvent to obtain a metal mask 1 (f in FIG. 1).

-Formation of liquid repellent layer-
A liquid repellent (fluorine coating agent) was applied to the surface of the metal mask to which the colored ink was applied and dried to provide a liquid repellent layer 4 (g in FIG. 1).

~ Formation of absorption layer ~
An ink-absorbing resin (acrylic copolymer resin) was applied to the surface of the metal mask in contact with the substrate (the surface opposite to the surface on which the liquid repellent layer was provided) and dried to provide an absorption layer 5 ′ (see h in FIG. 1). ).

~ Formation of color filter layer ~
A process of forming the color filter of this embodiment will be described with reference to the side sectional view of FIG. A reflective display 10 assembled in advance was used on the substrate of the color filter (a in FIG. 3). The prepared metal mask 6 is arranged on the reflective display 10 so that the absorption layer 5 ′ is on the reflective display 10 side (b in FIG. 3), and 150 pl of color ink 8 is applied to each pixel of the mask pattern. To form a color filter pattern (c in FIG. 3). Thereafter, the metal mask 6 was removed, the substrate was placed in an oven at 80 ° C., and the color ink 8 was dried. This was performed for three colors of red, green and blue inks to obtain a reflective color display 11 (d in FIG. 3). When the produced color filter was observed, it was a reflective display capable of full color display with a coloration ratio of 95% or more with respect to the pixel pattern (150 μm square) of the TFT and no color mixing with adjacent pixels. As described above, the substrate is a display display assembled in advance, and pixel formation is performed at a position corresponding to the display pixel portion on the display surface, whereby a thin display having excellent pixel position accuracy is obtained. When the color filter substrate and the display display are separately manufactured, it is necessary to bond the color filter and the display display, and it is difficult to bond the pixels while aligning high-definition pixels, and the position accuracy deteriorates.

  Each example has been described above. Note that at least two alignment marks for alignment may be provided at the relative positions of the mask and the substrate. This improves the printing position accuracy on the substrate.

  The present invention is applicable to the manufacture of display devices such as electronic paper and liquid crystal displays.

DESCRIPTION OF SYMBOLS 1 ... Metal plate 2 ... Etching resist film 3 ... Photomask 4 ... Liquid repellent layer 5 ... Adsorption layer 5 '... Absorption layer 6 ... Metal mask 7 ... PEN film 8 ... Color ink 9 ... Color filter 10 ... Reflective display 11 ... Reflective color display 12 ... reflective display front plate 13 ... reflective display back plate 20 ... etchant 30 ... through hole

Claims (7)

  A display display color filter, comprising: forming a pixel filter by printing at a predetermined position on a substrate through a mask having a through hole corresponding to the pixel pattern to form a display display color filter.   2. The method for producing a color filter for a display display according to claim 1, wherein an adsorption layer having an adsorptivity with the substrate is formed on a surface of the mask in contact with the substrate.   3. The method for producing a color filter for display display according to claim 1, wherein an absorption layer having ink absorptivity is formed on a surface of the mask in contact with the substrate.   The display according to claim 1, wherein a liquid repellent layer having liquid repellency with respect to ink is formed on a portion of the mask other than the surface in contact with the substrate. Manufacturing method of color filter for display.   The method for producing a color filter for a display display according to any one of claims 1 to 4, wherein an image-receiving layer having ink absorptivity is formed on the substrate.   The color filter for a display display according to claim 1, wherein at least two alignment marks for alignment are provided at relative positions of the mask and the substrate. Production method.   The display according to any one of claims 1 to 6, wherein the substrate is a display assembled in advance, and the pixel is formed at a position corresponding to a display pixel portion on the display surface. Manufacturing method of color filter for display.

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