JP2011145504A - Method for manufacturing color filter, the color filter, image display device and electronic apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for efficiently manufacturing a color filter that has a large color reproduction region, prevents the occurrence of color unevenness or the like, displays an image which is superior in contrast and has high durability. <P>SOLUTION: The method for manufacturing the color filter includes: a substrate preparation process of preparing a substrate; a light-shielding part forming process of forming a light-shielding part on the substrate; a first coloring part forming process of forming a red coloring part, a green coloring part; and a blue coloring part by supplying ink onto the substrate by an ink jet method; and a second coloring part forming process of forming a coloring part of indigo purple (cyan); a coloring part of purplish red (magenta); and a coloring part of yellow (yellow), by sticking a sheet material made of a material containing a colorant and photosensitive resin to the substrate and then by performing exposure and development. Each ink used in the first coloring part forming process contains a predetermined pigment. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a color filter manufacturing method, a color filter, an image display device, and an electronic apparatus.

  A color filter is generally used for a liquid crystal display (LCD) or the like that performs color display. The color filter is generally provided with three colored portions corresponding to the three primary colors of light, red (R), green (G), and blue (B). In a liquid crystal display device equipped with a color filter, Color display is performed by adjusting the amount of light transmitted through the colored portions of these colors.

  A color filter has conventionally formed a coating film of a liquid composition composed of a material (colored portion forming composition) containing a colorant, a photosensitive resin, a functional monomer, a polymerization initiator, etc. on a substrate, and then , A method of performing light exposure through a photomask, a development process, etc. (photolithographic method), or a method of forming a colored portion of a color filter using an inkjet head (droplet discharge head) (inkjet method) (See, for example, Patent Document 1).

As described above, the color filter generally includes three colored portions of RGB corresponding to the three primary colors of light, but further improvement in the image quality of the display image (expansion of the color reproduction range) is required. In order to meet such a demand, it is conceivable to increase the number of colors in the color filter (make the number of colors of the colored portion 4 or more).
However, as a result of intensive studies by the present inventors, it has been clarified that the display image cannot be sufficiently improved by simply applying the photolithography method or the ink jet method as described above.

JP 2008-225124 A

  An object of the present invention is to provide a color filter that has a wide color gamut, prevents occurrence of color unevenness, can display an image with excellent contrast, and has excellent durability, An object of the present invention is to provide a production method capable of efficiently producing a color filter, and to provide an image display device and an electronic apparatus provided with the color filter.

Such an object is achieved by the present invention described below.
The method for producing a color filter of the present invention is a method for producing a color filter having a plurality of colored portions,
A substrate preparation process for preparing a substrate;
A light shielding part forming step of forming a light shielding part on the substrate;
A first colored portion forming step of applying ink on the substrate by an ink jet method to form a red colored portion, a green colored portion, and a blue colored portion;
On the substrate, a sheet material composed of a material containing a colorant and a photosensitive resin is attached, and then exposed and developed, so that a cyan colored portion and a reddish purple (magenta) A second colored portion forming step of forming a colored portion and a yellow (yellow) colored portion,
The ink used for forming the red colored portion is C.I. I. Pigment red 177, C.I. I. Pigment Red 254 and at least one of these derivatives,
The ink used for forming the green colored portion is C.I. I. Pigment green 36 and / or C.I. I. Including CI Pigment Green 58,
The ink used for forming the blue colored portion is C.I. I. Pigment Blue 15: 6 is included.
This makes it possible to produce a color filter that has a wide color gamut, prevents the occurrence of uneven color, can display images with excellent contrast, and can efficiently produce color filters with excellent durability. A method for manufacturing a filter can be provided.
In the method for producing a color filter of the present invention, the sheet material preferably contains a dye.
Thereby, the brightness and contrast of the display image using the color filter can be made particularly excellent.

In the method for producing a color filter of the present invention, the ink used in the first colored portion forming step is, as a resin material, a monomer component m1 represented by the following formula (1) and a carboxyl group or an acid anhydride group. It is preferable that it contains the polymer M containing the monomer component m2 which has these, and the monomer component m3 represented by following formula (3).

  Thereby, the discharge stability of the ink used in the first colored portion forming step, the storage stability of the ink and the like can be made particularly excellent, and a color filter can be manufactured stably over a long period of time. As a result, the productivity of the color filter can be made particularly excellent. In addition, the uniformity of the characteristics among the individual color filters to be manufactured can be made particularly excellent.

これにより、製造されるカラーフィルターの各部位での色むら、濃度むらの発生やコントラストの低下等をより確実に防止することができ、カラーフィルターの耐久性、信頼性を特に優れたものとすることができる。 In the method for producing a color filter of the present invention, the ink used in the first colored portion forming step is represented by a monomer component x1 represented by the following formula (11) and the following formula (13) as a resin material. It is preferable that it contains the polymer X containing the monomer component x3 and the monomer component x4 represented by following formula (14).

As a result, it is possible to more reliably prevent color unevenness, density unevenness, contrast reduction, etc. at each part of the manufactured color filter, and make the color filter particularly excellent in durability and reliability. be able to.

これにより、第１の着色部形成工程で用いるインクの吐出安定性等を優れたものとしつつ、当該インクを用いて形成される着色部の基板に対する密着性を特に優れたものとすることができ、カラーフィルターの耐久性、信頼性を特に優れたものとすることができる。 In the method for producing a color filter of the present invention, the ink used in the first colored portion forming step includes a polymer Y containing a monomer component y1 represented by the following formula (15) as a resin material. It is preferable.

As a result, the discharge stability of the ink used in the first colored part forming step can be made excellent, and the adhesion of the colored part formed using the ink to the substrate can be made particularly excellent. The durability and reliability of the color filter can be made particularly excellent.

In the method for producing a color filter of the present invention, the ink used in the first colored portion forming step is represented by the monomer component z1 represented by the following formula (21) and the following formula (22) as a resin material. A polymer Z containing a monomer component z2 and a monomer component z3 represented by the following formula (23), a monomer component w1 represented by the following formula (25) and the following formula (26) At least one of the polymer W containing the monomer component w2 represented, the monomer component w3 represented by the following formula (27), and the monomer component w4 represented by the following formula (28). It is preferable that it is included.

  Thereby, the discharge stability of the ink used in the first colored portion forming step, the storage stability of the ink and the like can be made particularly excellent, and a color filter can be manufactured stably over a long period of time. As a result, the productivity of the color filter can be made particularly excellent. In addition, the hardness of the colored portion formed in the first colored portion forming step can be made particularly excellent, and the contrast of the display image of the color filter can be made particularly excellent.

The color filter of the present invention is manufactured using the method of the present invention.
Accordingly, it is possible to provide a color filter that has a wide color reproduction range, prevents occurrence of color unevenness, can display an image with excellent contrast, and has excellent durability.
An image display device according to the present invention includes the color filter according to the present invention.
Accordingly, it is possible to provide an image display apparatus that has a wide color reproduction range, prevents occurrence of color unevenness, and can stably display an image having excellent contrast over a long period of time.
An electronic apparatus according to the present invention includes the image display device according to the present invention.
Accordingly, it is possible to provide an electronic device that has a wide color reproduction range, prevents occurrence of color unevenness, and can stably display an image with excellent contrast over a long period of time.

It is sectional drawing which shows suitable embodiment of the manufacturing method of the color filter of this invention. It is sectional drawing which shows suitable embodiment of the manufacturing method of the color filter of this invention. It is a top view which shows suitable embodiment of the manufacturing method of the color filter of this invention. It is a top view which shows suitable embodiment of the manufacturing method of the color filter of this invention. It is a perspective view which shows the droplet discharge apparatus used for manufacture of a color filter. It is sectional drawing which shows embodiment of a liquid crystal display device. 1 is a perspective view illustrating a configuration of a mobile (or notebook) personal computer to which an electronic apparatus of the present invention is applied. It is a perspective view which shows the structure of the mobile telephone (PHS is also included) to which the electronic device of this invention is applied. It is a perspective view which shows the structure of the digital still camera to which the electronic device of this invention is applied. 10 is a plan view showing an arrangement of colored portions in a color filter of Comparative Example 3. FIG. 10 is a plan view showing an arrangement of colored portions in a color filter of Comparative Example 4. FIG.

Hereinafter, preferred embodiments of the present invention will be described.
First, a preferred embodiment of the method for producing a color filter of the present invention will be described.
《Color filter manufacturing method》
1 and 2 are sectional views showing a preferred embodiment of the method for producing a color filter of the present invention, and FIGS. 3 and 4 are plan views showing a preferred embodiment of the method for producing a color filter of the present invention. FIG. 5 is a perspective view showing a droplet discharge device used for manufacturing a color filter. In FIGS. 3 and 4, the region where the colored portion is to be formed is indicated by a broken line portion. Further, in FIGS. 3 and 4, a region where one pixel is to be formed is indicated by a dashed line. Moreover, (1a) to (1k) in FIGS. 1 and 2 correspond to (1a) to (1k) in FIGS. 3 and 4, respectively.

  The color filter manufacturing method of this embodiment includes a substrate preparation step (1a) for preparing the substrate 11, a light shielding portion forming step (1b, 1c) for forming the light shielding portion 13, and an ink jet ink on the substrate 11. A first colored portion forming step (1d, 1e) for forming a red colored portion 12A, a green colored portion 12B, and a blue colored portion 12C, and a colorant and a photosensitive resin on the substrate 11. By sticking a sheet material composed of the material including the material, and then exposing and developing, a colored portion 12D of cyan (purple), a colored portion 12E of reddish purple (magenta), and a colored portion 12F of yellow (yellow) And a second colored portion forming step (1f to 1k).

<Board preparation process>
First, the substrate 11 is prepared (1a). The board | substrate 11 is a plate-shaped member which has a light transmittance, and has the function to hold | maintain the coloring part 12 (12A, 12B, 12C, 12D, 12E, 12F) and the light-shielding part 13. FIG.
The substrate 11 is preferably made of a substantially transparent material. Thereby, a clearer image can be formed by the light transmitted through the color filter 1.

The substrate 11 is preferably excellent in heat resistance and mechanical strength. Thereby, for example, deformation due to heat applied during the manufacture of the color filter 1 can be reliably prevented. Examples of the constituent material of the substrate 11 that satisfies such conditions include glass, silicon, polycarbonate, polyester, aromatic polyamide, polyamideimide, polyimide, norbornene-based ring-opening polymer, and hydrogenated products thereof.
The substrate 11 prepared in this step is preferably subjected to a cleaning process. In addition, the substrate 11 prepared in this step has been subjected to appropriate pretreatment such as chemical treatment with a silane coupling agent or the like, plasma treatment, ion plating, sputtering, gas phase reaction method, vacuum deposition, and the like. Also good.

<Light shielding part forming step>
Next, the light shielding part 13 is formed on one surface of the substrate 11 (1b, 1c).
Thus, by forming the light shielding part 13, the contrast of an image displayed using the color filter 1 finally obtained can be made particularly excellent. In particular, by forming the light-shielding portion 13 prior to the first colored portion forming step, in the first colored portion forming step described later, a colored portion having a predetermined shape and high thickness uniformity ( 12A, 12B, 12C) can be formed efficiently.

  In this step, first, a radiation-sensitive composition for forming a light shielding part is applied to almost the entire surface of one surface of the substrate 11 to form a coating film 3 (1b). In addition, after giving a radiation sensitive composition on the board | substrate 11, you may perform a prebaking process as needed. The pre-bake treatment can be performed, for example, under the conditions of heating temperature: 50 ° C. or higher and 150 ° C. or lower, heating time: 30 seconds or longer and 600 seconds or shorter.

Then, the light-shielding part 13 is formed by performing a post-exposure baking process (PEB) by irradiating radiation through a photomask, and further performing a developing process using an alkali developer (1c). . PEB can be performed, for example, under conditions of heating temperature: 50 ° C. or more and 150 ° C. or less, heating time: 30 seconds or more and 600 seconds or less, and radiation irradiation intensity: 1 mJ / cm ² or more and 500 mJ / cm ² or less. The development processing can be performed by, for example, a liquid piling method, a dipping method, a vibration dipping method, or the like, and the development processing time can be, for example, 10 seconds to 300 seconds. Further, after the development process, a post-bake process may be performed as necessary. The post-bake treatment can be performed, for example, under the conditions of heating temperature: 150 ° C. or higher and 280 ° C. or lower and heating time: 3 minutes or longer and 120 minutes or shorter.

Moreover, you may perform a liquid-repellent process with respect to the coating film 3 before image development processing. For example, before the development treatment, a fluororesin may be applied to the coating film 3 by a stamp method or the like, and fluorine is doped on the surface of the coating film 3 (radiation sensitive composition) by plasma polymerization treatment. Also good. By performing such a treatment, only the bank surface (upper surface in the drawing, the portion excluding the inner wall surface) is made liquid repellent, and the colored portions (12D, 12E, 12F) formed in the subsequent second colored portion forming step. ) Contributes to the flattening of the surface. Further, a fluororesin having a light specific gravity may be added to the radiation-sensitive composition so as to be oriented only on the surface.
In addition, the light-shielding part 13 is made of a sheet material made of a material containing a light-shielding material (for example, carbon black) and a photosensitive resin, instead of forming the coating film 3 using a liquid composition. You may form by performing the process of exposure and image development after sticking.

<First colored portion forming step>
Next, the ink 2 containing the pigment is applied on the surface of the substrate 11 on the side where the light-shielding portion 13 is provided by an inkjet method to form a red colored portion 12A, a green colored portion 12B, and a blue colored portion 12C. (1d, 1e). The ink used in this step will be described in detail later, and is composed of a material including a pigment, a dispersion medium for dispersing the pigment, and a resin material. As described above, by adopting a part of the ink jet method of the color filter manufacturing method, the amount of discarded material for forming the colored portion can be reduced, which is preferable from the viewpoint of resource saving. Further, the productivity of the color filter as a whole can be made sufficiently excellent.

In this step, first, the color filter ink 2 is applied to the cell 14 surrounded by the light shielding portion (partition wall) 13 by an inkjet method (1d).
In this step, a plurality of types of color filter inks 2 corresponding to the colored portions 12 (red colored portion 12A, green colored portion 12B, and blue colored portion 12C) to be formed are used. At this time, since the light shielding portion (partition wall) 13 is provided, it is possible to reliably prevent the two or more kinds of color filter inks 2 from being mixed.

The color filter ink 2 is discharged using a droplet discharge device as shown in FIG.
As shown in FIG. 5, the droplet discharge device 100 used in this step is supplied with the color filter ink 2 from the tank 101 that holds the color filter ink 2, the tube 110, and the tube 110. A discharge scanning unit 102. The ejection scanning unit 102 includes a droplet ejection unit 103 in which a plurality of droplet ejection heads (inkjet heads) are mounted on a carriage, and a first position control device 104 (moving unit) that controls the position of the droplet ejection unit 103. A stage 106 that holds the substrate 11 provided with the light shielding portion 13 (hereinafter also simply referred to as “substrate 11”), a second position control device 108 (moving means) that controls the position of the stage 106, and a control Means 112. The tank 101 and the plurality of droplet discharge heads in the droplet discharge means 103 are connected by a tube 110, and the color filter ink 2 is supplied from the tank 101 to each of the plurality of droplet discharge heads by compressed air. The

  The first position control device 104 moves the droplet discharge means 103 along the X-axis direction and the Z-axis direction orthogonal to the X-axis direction in response to a signal from the control means 112. Further, the first position control device 104 also has a function of rotating the droplet discharge means 103 around an axis parallel to the Z axis. In the present embodiment, the Z-axis direction is a direction parallel to the vertical direction (that is, the direction of gravitational acceleration). The second position controller 108 moves the stage 106 along the Y-axis direction orthogonal to both the X-axis direction and the Z-axis direction in response to a signal from the control unit 112. Further, the second position control device 108 also has a function of rotating the stage 106 around an axis parallel to the Z axis.

The stage 106 has a plane parallel to both the X-axis direction and the Y-axis direction. The stage 106 is configured so that the substrate 11 having the cells 14 to which the color filter ink 2 is to be applied can be fixed or held on the plane.
As described above, the droplet discharge means 103 is moved in the X-axis direction by the first position control device 104. On the other hand, the stage 106 is moved in the Y-axis direction by the second position control device 108. That is, the first position control device 104 and the second position control device 108 change the relative position of the droplet discharge head with respect to the stage 106 (the substrate 11 held on the stage 106 and the droplet discharge means 103 are relatively Moving).
The control unit 112 is configured to receive ejection data representing a relative position at which the color filter ink 2 is to be ejected from an external information processing apparatus.

  Using the droplet discharge device 100 as described above, the color filter ink 2 corresponding to the colored portions 12A, 12B, and 12C is applied into the cell. By using the apparatus as described above, the color filter ink 2 can be efficiently and selectively applied to the cells 14. In the illustrated configuration, the droplet discharge device 100 has only one tank 101, a tube 110, and the like for holding the color filter ink 2, but these members should be formed in this step. You may have only the number of the kinds of coloring parts 12. In manufacturing the color filter 1, a plurality of droplet discharge devices 100 corresponding to a plurality of color filter inks 2 may be used.

In the present invention, the droplet discharge head may use a piezo element or an electrostatic actuator as a drive element. In addition, the droplet discharge head may be configured to use an electrothermal conversion element as a drive element and discharge the color filter ink by utilizing thermal expansion of a material by the electrothermal conversion element.
Next, the dispersion medium that disperses the pigment is removed from the color filter ink 2 in the cell 14, and the curable resin is cured (curing treatment) to form solid colored portions 12 (12A, 12B, 12C). (1e).
Removal of the dispersion medium and curing of the curable resin are usually performed by heating. Thereby, the adhesiveness with respect to the board | substrate 11 of the colored part 12 formed can be made especially excellent. In addition, it is possible to reliably prevent the dispersion medium of the color filter ink 2 from remaining in the formed colored portion 12. As a result, the durability and reliability of the color filter 1 can be made particularly excellent. Also, the productivity of the color filter 1 is improved.

  The heating temperature in this step (the temperature of the heated substrate 11) is not particularly limited, but is preferably 100 ° C. or higher and 280 ° C. or lower, and more preferably 110 ° C. or higher and 250 ° C. or lower. Thereby, the curing reaction of the resin material can be efficiently advanced while preventing the unintentional deterioration / decomposition of the constituent material of the colored portion 12, and the dispersion medium can be suitably removed from the color filter ink 2.

Moreover, the heating time in this step is not particularly limited, but is preferably 30 minutes or longer and 190 minutes or shorter, and more preferably 40 minutes or longer and 130 minutes or shorter.
In this step, a plurality of heat treatments with different temperatures may be performed. Specifically, in this step, a first heat treatment that heats the substrate 11 at a relatively low temperature and a second heat treatment that heats the substrate 11 at a temperature higher than the first heat treatment are performed. May be.
As a result, unintentional deterioration / decomposition of the constituent material of the colored portion 12 is prevented, the productivity of the color filter 1 is improved, and further, it is effective that the dispersion medium remains in the formed colored portion 12. Can be prevented.

Further, in this step, by performing a first heat treatment for heating the substrate 11 at a relatively low temperature and a second heat treatment for heating the substrate 11 at a temperature higher than the first heat treatment, The flatness of the surface of the coloring part 12 can be made higher.
In such a case, by heating the substrate 11 at a relatively low temperature in the first heat treatment, the dispersion medium is gently removed while preventing the convection of the color filter ink 2, and the color filter ink 2 The fluidity can be lost or reduced with the surface flat. Moreover, the unintentional curing reaction of the resin material can be prevented by heating at a relatively low temperature.
In the second heat treatment, the dispersion medium that could not be removed by the first heat treatment can be completely removed. In this step, when the color filter ink 2 is cured by reacting the resin material, the color filter ink 2 fixed in a flat state in the first heat treatment is efficiently cured in the shape. Can be made.

  As described above, when the first heat treatment and the second heat treatment are performed in this step, the treatment temperature in the first heat treatment (the temperature of the heated substrate 11) is not particularly limited, but is 30 ° C. The temperature is preferably 100 ° C. or lower and more preferably 40 ° C. or higher and 80 ° C. or lower. Thereby, the dispersion medium can be suitably removed from the color filter ink 2 while reliably preventing convection of the color filter ink 2.

The time for the first heat treatment is not particularly limited, but is preferably 3 minutes or longer and 50 minutes or shorter, and more preferably 5 minutes or longer and 40 minutes or shorter.
The treatment temperature in the second heat treatment (the temperature of the heated substrate 11) is not particularly limited, but is preferably 120 ° C. or higher and 280 ° C. or lower, and more preferably 150 ° C. or higher and 250 ° C. or lower. preferable. Thereby, the dispersion medium which could not be removed by the first heat treatment can be completely removed. In this step, when the color filter ink 2 is cured by reacting a resin material (curable resin material), the color filter ink 2 fixed in a flat state in the first heat treatment is used. It can be efficiently cured in that shape.
The time for the second heat treatment is not particularly limited, but is preferably 25 minutes or more and 150 minutes or less, and more preferably 30 minutes or more and 100 minutes or less.
Moreover, in this process, you may perform the process of placing the board | substrate 11 to which the ink 2 for color filters was provided in a pressure-reduced environment, for example.

By placing the substrate 11 provided with the color filter ink 2 in a reduced pressure environment (depressurization treatment), the dispersion medium can be removed more efficiently, or the shape of the colored portion in the pixel (cell) Even when the heating temperature is relatively low, the dispersion medium can be reliably removed, and the substrate 11, the colored portion 12 to be formed, etc. An effect such as prevention of the occurrence of adverse effects can be obtained. Moreover, a colored part can be more efficiently formed by using heat processing and pressure reduction processing together.
Next, the ink (color filter ink) used in the first colored portion forming step will be described in detail.
The color filter ink includes a pigment, a dispersion medium having a function of dispersing the pigment, a resin material, and the like.

[Pigment]
The ink 2 used for forming the red colored portion 12A is C.I. I. Pigment red 177, C.I. I. Pigment Red 254 and at least one of these derivatives are included. Thereby, the discharge stability of the ink 2 for forming the red colored portion 12A can be made sufficiently excellent, and the coloring property of the formed red colored portion 12A can be made sufficiently excellent. Can do. In particular, the ink 2 for forming the red colored portion 12A is C.I. I. Pigment red 177 and its derivatives, and / or C.I. I. It is preferable to include CI Pigment Red 254 and its derivatives. Thereby, the coloring property of the colored portion 12A can be made particularly excellent. Further, when used in combination with a resin material as will be described later, the effects of using the resin material in combination are more prominent, the storage stability of the ink 2 and the contrast of the display image using the manufactured color filter 1. Etc. can be made particularly excellent.

  C. I. Pigment Red 177 derivatives, C.I. I. In the case of containing a compound (derivative) represented by the following formula (30) or the following formula (31) as a pigment red 254 derivative, the effects as described above are more remarkably exhibited.

  The ink 2 used for forming the green colored portion 12B is C.I. I. Pigment green 36 and / or C.I. I. Pigment Green 58 is included. Thereby, the discharge stability of the ink 2 for forming the green colored portion 12B can be made sufficiently excellent, and the color developability of the formed green colored portion 12B can be made sufficiently excellent. Can do. In particular, the ink 2 for forming the green colored portion 12B is C.I. I. Pigment Green 58 is preferably included. Thereby, the color gamut of the manufactured color filter 1 can be made particularly wide. Further, when used in combination with a resin material as will be described later, the effects of using the resin material in combination are more prominent, the storage stability of the ink 2 and the contrast of the display image using the manufactured color filter 1. Etc. can be made particularly excellent.

Further, the ink 2 for forming the green colored portion 12B is C.I. I. When the pigment green 58 is included, it is preferable to further include a sulfonated pigment derivative as a sub-pigment. Thereby, the coloring property of the colored part 12B can be further improved.
The sheet material 12B ′ is C.I. I. When the pigment green 58 and the sulfonated pigment derivative are included, the sulfonated pigment derivative preferably contains a compound (derivative) represented by the following formula (32). Thereby, the effects as described above are more remarkably exhibited.

  The ink 2 for forming the green colored portion 12B is C.I. I. When the pigment green 58 and the pigment derivative (sulfonated pigment derivative) as described above are included, the content of the pigment derivative (sulfonated pigment derivative) is not particularly limited. I. Pigment Green 58 (main pigment): 10 parts by weight or more and 80 parts by weight or less is preferable with respect to 100 parts by weight, and more preferably 30 parts by weight or more and 70 parts by weight or less. Thereby, the contrast and brightness of the display image of the produced color filter 1 can be made particularly excellent.

  The ink 2 used for forming the blue colored portion 12C is C.I. I. Pigment Blue 15: 6 is included. Thereby, the discharge stability of the ink 2 for forming the blue colored portion 12C can be made sufficiently excellent, and the color developability of the formed blue colored portion 12C can be made sufficiently excellent. Can do.

  Further, the ink 2 for forming the blue colored portion 12C is C.I. I. Pigment Blue 15: 6 and C.I. I. Pigment violet 23 is preferably included. Thereby, the coloring property of the colored portion 12C can be made particularly excellent. Further, when used in combination with a resin material as will be described later, the effects of using the resin material in combination are more prominent, the storage stability of the ink 2 and the contrast of the display image using the manufactured color filter 1. Etc. can be made particularly excellent.

  The pigment content in the color filter ink 2 is preferably 2 wt% or more and 25 wt% or less, and more preferably 3 wt% or more and 20 wt% or less. When the content of the pigment is within the above range, a higher color density can be secured in the produced color filter, and the pigment can be used for clearer image display. Further, the amount of color filter ink required to form a colored portion having a predetermined color density can be reduced, which is advantageous from the viewpoint of resource saving. Moreover, since the volatilization amount of the dispersion medium when forming the colored portion of the color filter can be suppressed, the burden on the environment can be reduced.

[Dispersion medium]
The dispersion medium has a function of dispersing the pigment as described above. In general, most of the dispersion medium is removed in the process of manufacturing the color filter.
As the dispersion medium, for example, ester compounds, ether compounds, hydroxy ketones, carbonic acid diesters, cyclic amide compounds and the like can be used. Among them, [1] polyhydric alcohols (for example, ethylene glycol, propylene glycol, butylene glycol, glycerin). Ethers (polyhydric alcohol ethers) as condensates of polyhydric alcohols or alkyl ethers of polyhydric alcohol ethers (eg methyl ether, ethyl ether, butyl ether, hexyl ether), esters (eg, formate, acetate) Propionate, etc.), [2] ester of polyvalent carboxylic acid (eg, succinic acid, glutaric acid, etc.) (eg, methyl ester), [3] at least one hydroxyl group and at least one carboxyl group in the molecule. Yes That ether compounds (hydroxy acid), esters and the like, (4) polyhydric alcohol and carbonic acid diester having a chemical structure as obtained in the reaction with phosgene is preferred.

  The content of the dispersion medium in the color filter ink (the total of these contents when a plurality of compounds are included as the dispersion medium) is preferably 50 wt% or more and 98 wt% or less, and 60 wt% or more and 95 wt%. % Or less, more preferably 65 wt% or more and 93 wt% or less. When the content rate of the dispersion medium is a value within the above range, the color filter manufactured has excellent durability from the droplet discharge head, and the manufactured color filter has excellent durability. be able to. In addition, a sufficient color density can be ensured in the manufactured color filter.

[Resin material]
The color filter ink contains a resin material (binder resin) for the purpose of improving the adhesion of the formed colored portion to the substrate.
In this invention, it is preferable to contain the resin material which is explained in full detail below.
[Polymer M]
The polymer M includes a monomer component m1 represented by the following formula (1), a monomer component m2 having a carboxyl group or an acid anhydride group, a monomer component m3 represented by the following formula (3), Is included.

By including such a polymer M, the discharge stability of the color filter ink, the storage stability of the color filter ink, etc. can be made particularly excellent, and the color filter can be produced stably over a long period of time. As a result, the productivity of the color filter can be made particularly excellent. In addition, the uniformity of the characteristics among the individual color filters to be manufactured can be made particularly excellent. In addition, the colored portion formed using the color filter ink is particularly excellent in flatness, and the contrast ratio and brightness of the manufactured color filter can be particularly improved. Further, the durability of the color filter can be improved. In addition, the resin material has a characteristic that allows the curing reaction to proceed efficiently at a temperature higher than the predetermined temperature at a predetermined temperature or lower (hereinafter, also referred to as “curing reaction switching characteristics”). Etc. can be made excellent. Moreover, since the polymer M is very excellent in affinity and compatibility with the resin components (polymer X, polymer Y, polymer Z, polymer W) described later, it contains a plurality of types of resin components. Even in this case, it is possible to prevent unintentional precipitation of the resin material in the color filter ink, and to perform droplet discharge with excellent discharge stability. The characteristics of the components can be fully exhibited, and the occurrence of problems such as a decrease in transparency due to unintended phase separation can be reliably prevented. In addition, the long-term storage stability of the color filter ink (the life of the color filter ink) is extremely excellent, and it effectively prevents the occurrence of problems such as quality degradation due to the mass production of color filter ink. In addition, since the replacement frequency of the color filter ink can be reduced when manufacturing the color filter, the productivity of the color filter and the reliability of the manufactured color filter can be improved.
In addition, the polymer M may consist essentially of a single compound, or may be a mixture of a plurality of types of compounds.

(Monomer component m1)
The polymer M contains a monomer component m1 represented by the above formula (1), that is, a compound having a blocked isocyanate group (hereinafter also referred to as “block isocyanate group”) as a monomer component. It will be. The polymer M constituting the color filter ink may include a plurality of monomer components m1 represented by the general formula (1) in the molecule.

  By including such a monomer component m1 as a monomer component in the polymer M, an unintentional reaction (polymerization reaction) of the resin material at the time of storage of the color filter ink or at the time of droplet discharge or the like. In the curing treatment performed in a heating environment while reliably preventing, the curing reaction (polymerization reaction) of the resin material can be suitably proceeded. That is, the switching characteristic of the curing reaction for the resin material can be made excellent. This is considered to be due to the following reasons. That is, the blocked isocyanate group contained in the monomer component m1 in the polymer M is deblocked by a relatively high temperature during the curing treatment to generate an active isocyanate group, and the isocyanate group and the carboxyl group or acid anhydride are generated. While the group contributes to curing and can improve adhesion to the substrate, heat resistance, chemical resistance, etc., when a relatively low energy is applied, deblocking as described above proceeds. Therefore, the progress of the curing reaction is prevented and suppressed.

In the monomer A represented by the formula (1), R ¹ represents a hydrogen atom or a methyl group, and R ² represents a divalent aliphatic saturated hydrocarbon group having 1 to 8 carbon atoms. R ³ represents a residue of an isocyanate group blocking agent R ³ H.
Examples of the divalent saturated aliphatic hydrocarbon group having 1 to 8 carbon atoms in R ² include a linear or branched divalent saturated aliphatic hydrocarbon group (alkylene group). A divalent saturated aliphatic hydrocarbon group having 2 to 4 carbon atoms such as ethylene, trimethylene and propylene groups is preferred.

Examples of the isocyanate group blocking agent R ³ H include oxime blocking agents such as formaldoxime, acetoaldoxime, acetoxime, methyl ethyl ketoxime, methyl isobutyl ketoxime, diethyl ketoxime, cyclohexanone oxime, diacetyl monooxime, and benzophenone oxime. A pyrazole block agent such as 3,5-dimethylpyrazole; an alcohol block agent such as methanol and ethanol; a phenol block agent such as phenol and cresol; a mercaptan block agent such as butyl mercaptan; acetanilide, ε-caprolactam, γ -Acid amide blocking agents such as butyrolactam; active methylene blocking agents such as dimethyl malonate and methyl acetoacetate; imides such as succinimide and maleic imide Lock agent; urea blocking agents; N- phenylcarbamate type blocking agents of phenyl carbamate, and the like; diphenylamine, amine blocking agents such as aniline, ethylene imine, etc. imine blocking agents such as polyethyleneimine.
As an isocyanate group blocking agent, an oxime blocking agent and a pyrazole blocking agent are preferable, and those represented by the following formula (5) are more preferable.

Examples of the alkyl group having 1 to 8 carbon atoms in R ⁶ and R ⁷ in the formula (5) include linear or branched alkyl groups, and the number of carbon atoms such as methyl, ethyl, and propyl groups. 1 or more and 4 or less linear or branched alkyl group is preferable. Examples of the ring in which R ⁶ and R ⁷ are bonded to each other together with the adjacent carbon atom include a cycloalkane having about 3 to 12 members (preferably 5 or 6 members) such as a cyclobutane ring, a cyclopentane ring, and a cyclohexane ring. A ring etc. are mentioned.

  Specific examples of the monomer component m1 represented by the formula (1) include 2- [O- (1'-methylpropylideneamino) carboxyamino] ethyl methacrylate (= 2- (1-methylpropylideneamino). (Oxycarbonylaminoethyl) methacrylate) (represented by the following formula (6)), 2- (3,5-dimethylpyrazol-1-yl) carbonylaminoethyl methacrylate (represented by the following formula (7)) ) And the like.

  The content of the monomer component m1 in the polymer M (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is 1 wt% or more and 99 wt% or less (for example, 10 wt% or more and 95 wt% or less). It is preferably 20 wt% or more and 90 wt% or less, more preferably 25 wt% or more and 88 wt% or less. When the content of the monomer component m1 in the polymer M is a value within the above range, the above-described effects can be obtained without inhibiting the functions of the monomer components m2, m3 and the like described later in detail. It can be remarkably expressed. On the other hand, when the content of the monomer component m1 in the polymer M is less than the lower limit, the effect of including the monomer component m1 may not be sufficiently exhibited. On the other hand, if the content of the monomer component m1 in the polymer M exceeds the upper limit, the content of the monomer components m2, m3, etc. may be relatively decreased, and these functions may not be sufficiently exhibited. There is sex. In addition, when the polymer M contains a plurality of types of monomer components m1, it is preferable that the sum of the contents of the plurality of types of monomer components m1 satisfies the above-described conditions. Further, when the polymer M is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is used as the content value of the monomer component m1. can do. Moreover, when the polymer M is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component m1 at the content described above.

(Monomer component m2)
The polymer M contains a monomer component m2 having a carboxyl group or an acid anhydride group as a monomer component. The polymer M constituting the color filter ink may include a plurality of types of monomer components m2 in the molecule.
By including such a monomer component m2 as a monomer component in the polymer M, it is possible to improve the wetting and spreading of the color filter ink onto the substrate, and the incorporation of bubbles and the like A colored portion that is reliably prevented and has excellent adhesion to the substrate can be suitably formed. Further, by containing the monomer component m2 as a monomer component, the long-term storage stability of the color filter ink can be made particularly excellent. In the case where the color filter ink contains a polymer Z and / or a polymer W as will be described later, the affinity between the polymer M and these polymers (polymer Z, polymer W), phase The solubility can be made sufficiently excellent. As a result, the discharge stability of the color filter ink can be improved, and the colored portion formed using the color filter ink is particularly excellent in transparency (light due to the opacity of the resin material). The reduction in transmittance is more effectively prevented), the adhesion to the substrate is particularly excellent, and problems such as cracks are less likely to occur.

  Examples of the monomer component m2 include unsaturated carboxylic acids or acid anhydrides thereof. Specific examples of the monomer component m2 include α, β-unsaturated carboxylic acids such as acrylic acid, methacrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid, and acid anhydrides thereof (maleic anhydride, itaconic anhydride). Acid) and the like, and among them, acrylic acid and methacrylic acid (represented by the following formula (2)) are particularly preferable.

  The content of the monomer component m2 in the polymer M (value obtained by conversion based on the weight of the monomer used for polymer synthesis) is 0.5 wt% or more and 98 wt% or less (for example, 2.5 wt% or more). 70 wt% or less), preferably 3 wt% or more and 50 wt% or less, more preferably 5 wt% or more and 40 wt% or less. When the content of the monomer component m2 in the polymer M is a value within the above range, the above-described monomer component m1 and the monomer component m3 described in detail later are not impaired, and the above-described functions are not impaired. The effect as described above can be expressed more remarkably. On the other hand, when the content of the monomer component m2 in the polymer M is less than the lower limit, the effect of including the monomer component m2 may not be sufficiently exhibited. On the other hand, when the content of the monomer component m2 in the polymer M exceeds the upper limit, the content of the monomer components m1, m3, etc. may be relatively decreased, and these functions may not be sufficiently exhibited. There is sex. In addition, when the polymer M contains a plurality of types of monomer components m2, it is preferable that the sum of the contents of the plurality of types of monomer components m2 satisfies the above-described conditions. Further, when the polymer M is a mixture of plural kinds of compounds, the weighted average value (weighted average value based on the weight ratio) of these compounds is adopted as the content value of the monomer component m2. can do. Moreover, when the polymer M is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component m2 with the content as described above.

(Monomer component m3)
The polymer M contains the monomer component m3 ((meth) acrylic acid ester) represented by the above formula (3) as a monomer component. The polymer M constituting the color filter ink may contain a plurality of monomer components m3 represented by the general formula (3) in the molecule.

  By containing such a monomer component m3 as a monomer component in the polymer M, the flatness of the colored portion formed using the color filter ink can be made high. Further, by containing the monomer component m3 as a monomer component in the polymer M, the discharge stability of the color filter ink can be made excellent. Further, by containing the monomer component m3 as a monomer component in the polymer M, the storage stability (long-term storage stability) of the color filter ink can be improved.

Examples of the hydrocarbon group having 16 to 25 carbon atoms in R ⁵ include alkyl groups such as hexadecyl (cetyl), heptadecyl, octadecyl (stearyl), nonadecyl, icosyl and docosyl (behenyl) groups; 10-cyclohexyldecyl, 12 A group in which an alicyclic hydrocarbon group such as cyclohexyldodecyl, 14-cyclohexyltetradecyl, 16-cyclohexylhexadecyl and the like are bonded to an alkyl group; 10-phenyldecyl, 12-phenyldodecyl, 14-phenyltetradecyl, 16 -Aralkyl groups, such as a phenyl hexadecyl group, etc. are mentioned.

Examples of the hydrocarbon group-substituted oxy group that the hydrocarbon group having 16 to 25 carbon atoms may have include, for example, alkoxy groups such as methoxy and ethoxy groups (for example, alkoxy groups having 1 to 10 carbon atoms); Aryloxy group such as phenoxy group; alicyclic hydrocarbon group-substituted oxy group such as cyclohexyloxy group and dicyclopentanyloxy group; and 1 to 15 carbon atoms such as aralkyloxy group such as benzyloxy group (preferably, And a hydrocarbon group-substituted oxy group having 1 to 12 carbon atoms.
Specific examples of the monomer component m3 include cetyl (meth) acrylate, stearyl (meth) acrylate, and behenyl (meth) acrylate.

As described above, the number of carbon atoms of the hydrocarbon group (which may have a hydrocarbon group-substituted oxy group) contained in the monomer component m3 constituting the polymer M (hereinafter also referred to as the carbon number of R ⁵ ). Is 16 or more and 25 or less, particularly preferably 16 or more and 22 or less, and more preferably 16 or more and 20 or less. Thereby, the effect mentioned above is exhibited more notably. On the other hand, when the carbon number of R ⁵ is less than the lower limit value or exceeds the upper limit value, the excellent effects as described above cannot be obtained. Thus, the polymer M has one big feature in that it includes a monomer component (monomer component m3) having a group (R ⁵ ) having a predetermined number of carbon atoms.

  The content of the monomer component m3 in the polymer M (value obtained by conversion based on the weight of the monomer used for polymer synthesis) is 0.5 wt% or more and 98 wt% or less (for example, 2.5 wt% or more). 70 wt% or less), preferably 3 wt% or more and 50 wt% or less, more preferably 5 wt% or more and 40 wt% or less. When the content of the monomer component m3 in the polymer M is a value within the above range, the above-described effects are more prominent without inhibiting the functions of the monomer components m1, m2, and the like. Can be expressed. On the other hand, when the content of the monomer component m3 in the polymer M is less than the lower limit, the effect of including the monomer component m3 may not be sufficiently exhibited. On the other hand, if the content of the monomer component m3 in the polymer M exceeds the upper limit, the content of the monomer components m1, m2, etc. may be relatively decreased, and these functions may not be sufficiently exhibited. There is sex. In addition, when the polymer M contains a plurality of types of monomer components m3, it is preferable that the sum of the content ratios of the plurality of types of monomer components m3 satisfies the above conditions. Further, when the polymer M is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component m3. can do. Moreover, when the polymer M is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component m3 at the above-described content.

Polymer ratio of the monomer component m1 in _{M (C m1 [wt%]} ) and the monomer ratio of the components _{m2 (C m1 [wt%]} ) , it is preferable to satisfy the following relationship. That is, C _m1 / C _m2 is preferably 2/98 or more and 98/2 or less, more preferably 20/80 or more and 95/5 or less, and 40/60 or more and 95/5 or less. Further preferred.
Further, the ratio of monomer component m1 in polymer M ( _Cm1 [wt%]) and the ratio of monomer component m3 ( _Cm3 [wt%]) preferably satisfy the following relationship. . That is, C _m1 / C _m3 is preferably 2/98 or more and 98/2 or less, more preferably 20/80 or more and 95/5 or less, and 40/60 or more and 95/5 or less. Further preferred.
Examples of the polymer M include those represented by the following formula (8).

Moreover, the polymer M may contain components other than the monomer components m1, m2, and m3 described above. Thereby, for example, the effects derived from the chemical structures of other monomer components can be obtained while exhibiting the above-described characteristics. Examples of such components include monomer component m4, monomer component m5, monomer component m6, monomer component m7 and the like as described below.
(Monomer component m4)
The polymer M may contain the monomer component m4 ((meth) acrylic acid ester) represented by the following formula (4) as a monomer component.

By including the monomer component m4 in the polymer M, the solubility of the resin material in the color filter ink is excellent even when the dispersion medium constituting the color filter ink is highly hydrophilic. And the transparency of the colored portion formed using the color filter ink can be made excellent.
In the monomer component m4, R ⁹ represents a hydrocarbon group having 1 to 15 carbon atoms which may have a hydrocarbon group-substituted oxy group, and the hydrocarbon group has 1 to 12 carbon atoms. It is preferable that: Examples of the hydrocarbon group represented by R ⁹ include alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, pentyl, hexyl, octyl, 2-ethylhexyl, decyl group; Alicyclic hydrocarbon groups such as cyclohexyl, dicyclopentanyl and isobornyl groups; aryl groups such as phenyl groups; aralkyl groups such as benzyl, 1-phenylethyl and 2-phenylethyl groups; groups in which two or more of these are bonded, etc. Is mentioned.

  Examples of the hydrocarbon group-substituted oxy group that the hydrocarbon group having 1 to 15 carbon atoms may have include, for example, alkoxy groups such as methoxy and ethoxy groups (for example, alkoxy groups having 1 to 10 carbon atoms); Aryloxy group such as phenoxy group; alicyclic hydrocarbon group-substituted oxy group such as cyclohexyloxy group and dicyclopentanyloxy group; and 1 to 15 carbon atoms such as aralkyloxy group such as benzyloxy group (preferably, And a hydrocarbon group-substituted oxy group having 1 to 12 carbon atoms.

  Specific examples of the monomer component m4 include methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, phenyl (meth) acrylate, cyclohexyl (meth) acrylate, di Examples include cyclopentanyl (meth) acrylate, dicyclopentanyloxyethyl (meth) acrylate, isobornyl (meth) acrylate, benzyl (meth) acrylate, phenylethyl (meth) acrylate, and the like.

As described above, the carbon number of the hydrocarbon group (which may have a hydrocarbon group-substituted oxy group) included in the monomer component m4 (hereinafter also referred to as the carbon number of R ⁹ ) is 1 or more and 15 or less. However, it is particularly preferably 1 or more and 8 or less, and more preferably 1 or more and 4 or less. Thereby, the effect mentioned above is exhibited more notably.
Examples of the polymer M including the monomer component m4 as described above include those represented by the following formula (9).

(Monomer component m5)
The polymer M may contain the monomer component m5 which is an aromatic vinyl compound as a monomer component.
When the polymer M contains the monomer component m5, the discharge stability of the color filter ink can be made particularly excellent. In addition, the colored portion formed using the color filter ink is particularly excellent in transparency (a reduction in light transmittance due to the opacity of the resin material is more effectively prevented), and particularly excellent in adhesion to the substrate, Problems such as cracks are particularly difficult to occur.
Specific examples of the monomer component m5 include styrene, α-methylstyrene, vinyl toluene, vinyl naphthalene, vinyl biphenyl, and the like.

(Monomer component m6)
The polymer M may include a monomer component m6 that is a hydroxyl group-containing compound as a monomer component.
When the polymer M contains the monomer component m6, the storage stability of the color filter ink can be made particularly excellent. Moreover, the hardening reaction of the resin material at the time of colored part formation can be advanced more suitably.

  Specific examples of the monomer component m6 include 2-hydroxyethyl (meth) acrylate, hydroxypropyl (meth) acrylate, 2,3-dihydroxybutyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, and 6-hydroxy. Polyhydric alcohol and acrylic acid such as hexyl (meth) acrylate, hydroxyalkyl (meth) acrylate such as 8-hydroxyoctyl (meth) acrylate, 4-hydroxymethylcyclohexyl (meth) acrylate, polyalkylene glycol mono (meth) acrylate, etc. Or a compound obtained by ring-opening polymerization of ε-caprolactone to a monoesterified product of methacrylic acid, a monoesterified product of the above polyhydric alcohol and acrylic acid or methacrylic acid, ethylene oxide, or propylene oxide. Ring-opening polymerized hydroxyl containing compounds, and the like to.

(Monomer component m7)
The polymer M may contain the monomer component m7 which is a vinyl compound having a 3- to 5-membered cyclic ether group as a monomer component.
The monomer component m7 (a vinyl compound having a 3- to 5-membered cyclic ether group) includes an oxirane ring (epoxy group) -containing polymerizable unsaturated compound, an oxetane ring (oxetanyl group) -containing polymerizable unsaturated compound, and an oxolane ring. (Oxolanyl group) -containing polymerizable unsaturated compounds are included.
By including the monomer component m7 in the polymer M, it is possible to further improve the hardness of the colored portion formed using the color filter ink, the adhesion to the substrate, and the like.

Examples of the oxirane ring (epoxy group) -containing polymerizable unsaturated compound include oxiranyl (meth) acrylate, glycidyl (meth) acrylate, 2-methylglycidyl (meth) acrylate, 2-ethylglycidyl (meth) acrylate, and 2-oxy Polymerizable unsaturated compounds containing an oxirane ring (monocyclic) such as ranylethyl (meth) acrylate, 2-glycidyloxyethyl (meth) acrylate, 3-glycidyloxypropyl (meth) acrylate, glycidyloxyphenyl (meth) acrylate, etc. ((Meth) acrylic acid ester derivatives and the like); 3,4-epoxycyclohexyl (meth) acrylate, 3,4-epoxycyclohexylmethyl (meth) acrylate, 2- (3,4-epoxycyclohexyl) ethyl (meth) acrylate, Epoxy group-containing alicyclic rings such as 3,4-epoxycyclohexane rings such as-(3,4-epoxycyclohexylmethyloxy) ethyl (meth) acrylate and 3- (3,4-epoxycyclohexylmethyloxy) propyl (meth) acrylate Polymerizable unsaturated compounds containing the formula carbocycle ((meth) acrylic acid ester derivatives and the like); 5,6-epoxy- such as 5,6-epoxy-2-bicyclo [2.2.1] heptyl (meth) acrylate Polymerizable unsaturated compounds containing a 2-bicyclo [2.2.1] heptane ring (such as (meth) acrylic acid ester derivatives); epoxidized dicyclopentenyl (meth) acrylate [3,4-epoxytricyclo [5. 2.1.0 ^2,6] decan-9-yl (meth) acrylate, 3,4-epoxytricyclo [5.2.1.0 ^2, ] Decan-8-yl (meth) acrylate or mixtures thereof,], epoxidized dicyclopentenyloxyethyl (meth) acrylate [2- (3,4-epoxytricyclo [5.2.1.0 ^2,6 ] Decan-9-yloxy) ethyl (meth) acrylate, 2- (3,4-epoxytricyclo [5.2.1.0 ^2,6 ] decan-8-yloxy) ethyl (meth) acrylate, or these Mixture], 3,4-epoxy tricyclo [5.2.1.0 ^2,6 ] decane ring such as epoxidized dicyclopentenyloxybutyl (meth) acrylate, epoxidized dicyclopentenyloxyhexyl (meth) acrylate, etc. Examples thereof include polymerizable unsaturated compounds (such as (meth) acrylic acid ester derivatives). As another oxirane ring (epoxy group) -containing polymerizable unsaturated compound, a vinyl ether compound containing an epoxy group, an allyl ether compound containing an epoxy group, an aromatic vinyl compound containing an epoxy group, or the like can also be used. Examples of the aromatic vinyl compound containing an epoxy group include styrene derivatives such as 4-vinylbenzylglycidyl ether, 4-vinylbenzyloxirane, 4-vinylphenethyloxirane.
Examples of the oxetane ring (oxetanyl group) -containing polymerizable unsaturated compound include oxetanyl (meth) acrylate, 3-methyl-3-oxetanyl (meth) acrylate, 3-ethyl-3-oxetanyl (meth) acrylate, (3- Methyl-3-oxetanyl) methyl (meth) acrylate, (3-ethyl-3-oxetanyl) methyl (meth) acrylate, 2- (3-methyl-3-oxetanyl) ethyl (meth) acrylate, 2- (3-ethyl -3-Oxetanyl) ethyl (meth) acrylate, 2-[(3-methyl-3-oxetanyl) methyloxy] ethyl (meth) acrylate, 2-[(3-ethyl-3-oxetanyl) methyloxy] ethyl (meta ) Acrylate, 3-[(3-Methyl-3-oxetanyl) methyloxy] propyl Pill (meth) acrylate, 3 - and [(3-ethyl-3-oxetanyl) methyloxy] propyl (meth) acrylate, vinyl ether compounds containing oxetanyl group, allyl ether compounds containing oxetanyl group.
Examples of the oxolane ring (oxolanyl group) -containing polymerizable unsaturated compound include tetrahydrofurfuryl (meth) acrylate, vinyl ether compounds containing an oxolanyl group, and allyl ether compounds containing an oxolanyl group.

  When the polymer M constituting the color filter ink contains the monomer component m7 as described above, a 3- to 5-membered cyclic ether group (oxirane ring (epoxy group), oxetane ring (oxetanyl group), oxolane The ring (oxolanyl group)) acts as a curable group. The 3- to 5-membered cyclic ether group mainly contributes to improvement of chemical resistance (solvent resistance, alkali resistance, etc.).

  When the polymer M contains at least one monomer component selected from the group consisting of the monomer components m4, m5, m6 and m7 in addition to the monomer components m1, m2 and m3, The total content of the monomer components m4, m5, m6 and m7 in the polymer M is preferably 60 wt% or less, more preferably 50 wt% or less, and further preferably 40 wt% or less. preferable. Thereby, the effect by including the monomer components m4, m5, m6, and m7 is exhibited while the effect by including the monomer components m1, m2, and m3 described above is sufficiently exhibited.

  The weight average molecular weight of the polymer M is preferably 500 or more and 100,000 or less, more preferably 1000 or more and 40000 or less, and further preferably 2000 or more and 30000 or less. As a result, the contrast ratio and brightness of the color filter manufactured using the color filter ink can be made particularly excellent, and the durability of the color filter can be made particularly excellent. In addition, the storage stability (long-term stability), ejection stability, hardness of the formed colored portion, and the like can be improved.

Further, the dispersity (weight average molecular weight Mw / number average molecular weight Mn) of the polymer M is preferably 1 or more and 3 or less.
The content _{C M} of the polymer M in the color filter ink is preferably less 0.5 wt% or more 12 wt%, and more preferably less than 1.0 wt% 9.0 wt%.
The content of the polymer M in the color filter ink is preferably 0.6 wt% or more and 13.0 wt% or less, and more preferably 0.9 wt% or more and 9.0 wt% or less. Thereby, the effect by including the polymer M can be more effectively exhibited while fully exhibiting the functions of other components.

[Polymer X]
Polymer X includes monomer component x1 represented by the following formula (11), monomer component x3 represented by the following formula (13), monomer component x4 represented by the following formula (14), and Is included. Examples of the polymer X include those represented by the following formula (17).

By including such a polymer X, the solvent property of the colored portion formed using the color filter ink is particularly improved while sufficiently improving the switching characteristics of the curing reaction as the entire resin material. It can be excellent, and the flatness of the surface of the colored portion to be formed can be particularly high. As a result, it is possible to more reliably prevent color unevenness, density unevenness, contrast reduction, etc. at each part of the color filter manufactured using the color filter ink, and durability and reliability of the color filter. Can be made particularly excellent. In addition, by including the polymer X, the affinity and compatibility of each polymer component in the color filter ink (in particular, the polymer M, the polymer Y, the polymer Z, and the polymer W of the polymer X) Of the color filter ink, while making the characteristics of the polymer X fully exhibited and the discharge stability of the color filter ink excellent. The transparency of the colored part formed using can be made high.
In addition, the polymer X may consist essentially of a single compound, or may be a mixture of a plurality of types of compounds. However, when the polymer X is a mixture of a plurality of types of compounds, each compound contains monomer components x1, x3, and x4.

(Monomer component x1)
The polymer X contains the monomer component x1 represented by the formula (11) as a monomer component.
By containing such a monomer component x1 as a monomer component, an unintentional reaction (polymerization reaction) of the resin material at the time of storage of the color filter ink or at the time of droplet discharge is reliably prevented. In the curing treatment performed in a heating environment, the curing reaction (polymerization reaction) of the resin material can be caused to proceed more suitably. That is, by including the monomer component x1, the switching characteristics of the curing reaction for the resin material can be made particularly excellent. Further, by containing the monomer component x1 as the monomer component, for example, the long-term storage stability and ejection stability of the color filter ink can be improved. Moreover, the hardness etc. of the colored part formed can be made excellent by containing the monomer component x1 as a monomer component.

  The content of the monomer component x1 in the polymer X (a value obtained by conversion based on the weight of the monomer used for polymer synthesis) is preferably 30 wt% or more and 90 wt% or less, and 40 wt% or more. More preferably, it is 80 wt% or less. When the content of the monomer component x1 in the polymer X is a value within the above range, the above-described effects can be achieved without inhibiting the functions of the monomer components x2, x3, and x4 described in detail later. It can be expressed more significantly. On the other hand, if the content of the monomer component x1 in the polymer X is less than the lower limit value, the effect of including the monomer component x1 may not be sufficiently exhibited. On the other hand, when the content of the monomer component x1 in the polymer X exceeds the upper limit, the content of the monomer components x2, x3, and x4 is relatively lowered, and these functions are not sufficiently exhibited. there is a possibility. Further, the reaction rate of the polymer X at a high temperature decreases, and it becomes difficult to produce a color filter with sufficiently excellent productivity. In addition, when the polymer X is a mixture of plural kinds of compounds, the weighted average value (weighted average value based on the weight ratio) of these compounds is adopted as the content value of the monomer component x1. can do. Moreover, when the polymer X is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component x1 at the content as described above.

(Monomer component x2)
The polymer X may contain the monomer component x2 represented by the following formula (12) as a monomer component.

By containing such a monomer component x2 as a monomer component (particularly, together with the monomer component x1 described above and the monomer component x3 described in detail later), the color filter ink can be stored. The curing reaction (polymerization reaction) of the resin material proceeds more suitably in the curing process performed in a heating environment while reliably preventing unintentional reaction (polymerization reaction) of the resin material during discharge or droplet discharge. Can be made. In particular, in the curing treatment under a heating environment, the rising of the polymerization reaction of the resin material can be improved, and the polymerization reaction can be continuously advanced. Further, by containing the monomer component x2 as the monomer component, the hardness of the colored portion to be formed can be made particularly excellent.
Examples of the polymer X containing the monomer component x2 as a monomer component include those represented by the following formula (19).

  The content of the monomer component x2 in the polymer X (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 5 wt% or more and 60 wt% or less, preferably 10 wt% or more. More preferably, it is 50 wt% or less. When the content of the monomer component x2 in the polymer X is a value within the above range, without inhibiting the functions of the monomer component x1 and the monomer components x3 and x4 described in detail later, The effects as described above can be expressed more remarkably. On the other hand, when the content of the monomer component x2 in the polymer X is less than the lower limit, the effect of including the monomer component x2 may not be sufficiently exhibited. On the other hand, when the content of the monomer component x2 in the polymer X exceeds the upper limit, the content of the monomer components x1, x3, and x4 is relatively lowered, and these functions are not sufficiently exhibited. there is a possibility. In addition, the reactivity of the polymer X at a relatively low temperature increases, and the storage stability of the color filter ink tends to decrease. In addition, when the polymer X is a mixture of a plurality of kinds of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component x2. can do. Moreover, when the polymer X is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component x2 at the above-described content.

(Monomer component x3)
The polymer X contains the monomer component x3 represented by the above formula (13) as a monomer component.
When the polymer X contains the monomer component x3 as the monomer component, the chemical resistance, solvent resistance, and the like of the colored portion to be formed can be made particularly excellent. Thereby, even if it is a case where post-processing, such as chemical | medical agent application | coating and washing | cleaning, is performed after a hardening process, generation | occurrence | production of the bad influence by these can be prevented reliably.

In addition, the monomer component x3 has a sufficiently low reactivity at a relatively low temperature (for example, 100 ° C. or lower) in the polymer X, similarly to the monomer component x1 described above. In a heating environment such as the heat treatment applied in step 1, it exhibits sufficient reactivity. Therefore, the curing reaction of the resin material in the curing process performed in a heated environment while reliably preventing the unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink or droplet discharge. (Polymerization reaction) can be suitably advanced.
Further, by containing the monomer component x3 as the monomer component, for example, the long-term storage stability and ejection stability of the color filter ink can be made particularly excellent.

  The content of the monomer component x3 in the polymer X (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 2 wt% or more and 20 wt% or less, preferably 3 wt% or more. More preferably, it is 15 wt% or less. When the content of the monomer component x3 in the polymer X is a value within the above range, without inhibiting the functions of the monomer components x1 and x2 described above and the monomer component x4 described in detail later, The effects as described above can be expressed more remarkably. On the other hand, when the content of the monomer component x3 in the polymer X is less than the lower limit, the effect of including the monomer component x3 may not be sufficiently exhibited. On the other hand, when the content of the monomer component x3 in the polymer X exceeds the upper limit, the content of the monomer components x1, x2, and x4 is relatively decreased, and these functions are not sufficiently exhibited. there is a possibility. In addition, the colored portion formed using the color filter ink becomes too hard, and the tendency to follow the deformation of the substrate or the like accompanying a temperature change appears. In addition, when the polymer X is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) of these compounds is adopted as the content value of the monomer component x3. can do. Moreover, when the polymer X is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component x3 with the content as described above.

(Monomer component x4)
The polymer X contains the monomer component x4 represented by the formula (14) as a monomer component.
By containing such a monomer component x4 as a monomer component, the solid content concentration is increased when the dispersion medium is removed from the color filter ink applied on the substrate during the formation of the colored portion. Along with this, the thixotropic property and viscosity of the color filter ink are increased, and it is possible to more reliably prevent the occurrence of unintentional irregularities on the surface of the formed colored portion.

Moreover, the monomer component x4 has a hydroxyl group at the terminal. By having such a structure, the reactivity in a heating environment such as a curing process can be further enhanced while the reactivity at a relatively low temperature (for example, 100 ° C. or less) is sufficiently low. As a result, the curing reaction of the resin material is ensured in a curing process performed in a heated environment while reliably preventing unintentional reaction (polymerization reaction) of the resin material during storage of color filter ink or droplet discharge. (Polymerization reaction) can proceed more suitably.
Further, by containing the monomer component x4 as the monomer component, for example, the long-term storage stability and ejection stability of the color filter ink can be made particularly excellent.

The content of the monomer component x4 in the polymer X (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 2 wt% or more and 20 wt% or less, preferably 3 wt% or more. More preferably, it is 15 wt% or less. When the content of the monomer component x4 in the polymer X is a value within the above range, the above-described effects are more remarkable without inhibiting the functions of the monomer components x1, x2, and x3. Can be expressed. On the other hand, when the content of the monomer component x4 in the polymer X is less than the lower limit, the effect due to the inclusion of the monomer component x4 may not be sufficiently exhibited. On the other hand, when the content of the monomer component x4 in the polymer X exceeds the upper limit, the content of the monomer components x1, x2, and x3 is relatively lowered, and these functions are not sufficiently exhibited. there is a possibility. Moreover, the tendency for the hardness of the colored part formed using the ink for color filters to fall appears. In addition, when the polymer X is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) of these compounds is used as the content value of the monomer component x4. can do. Moreover, when the polymer X is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component x4 with the content as described above.
The polymer X may include a monomer component (other monomer component) other than the monomer components x1, x2, x3, and x4 described above. Thereby, for example, the effects derived from the chemical structures of other monomer components can be obtained while exhibiting the above-described characteristics.

When the polymer X contains other monomer components (monomer components other than the monomer components x1, x2, x3, x4), the content of other monomer components in the polymer X ( When a plurality of other monomer components are included, the sum of these contents) is preferably 15 wt% or less, and more preferably 10 wt% or less.
The weight average molecular weight of the polymer X is preferably 1000 or more and 50000 or less, more preferably 1200 or more and 10,000 or less, and further preferably 1500 or more and 5000 or less. As a result, it is possible to make the color filter ink stable over time (long-term storage stability), the discharge stability of the color filter ink, and the color filter productivity sufficiently. Furthermore, the flatness of the colored portion formed using the color filter ink can be made more reliable, and the occurrence of color unevenness in the image displayed using the color filter can be more effectively achieved. Can be prevented.
Further, the dispersity (weight average molecular weight Mw / number average molecular weight Mn) of the polymer X is preferably 1 or more and 3 or less.

[Polymer Y]
The polymer Y includes a monomer component y1 represented by the following formula (15). Examples of the polymer Y include those represented by the following formula (18).

By including such a polymer Y, the adhesion of the colored portion formed using the color filter ink to the substrate is particularly excellent while the discharge stability of the color filter ink is excellent. The durability and reliability of the manufactured color filter can be made particularly excellent.
The polymer Y may be substantially composed of a single compound, or may be a mixture of a plurality of types of compounds. However, when the polymer Y is a mixture of a plurality of types of compounds, each compound contains the monomer component y1.

(Monomer component y1)
The polymer Y contains the monomer component y1 represented by the formula (15) as a monomer component.
By including such a monomer component y1 as the monomer component, the adhesion of the formed colored portion to the substrate can be made particularly excellent. As a result, the durability of the color filter can be made particularly excellent.

  The content of the monomer component y1 in the polymer Y (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 30 wt% or more and 90 wt% or less, and 40 wt% or more. More preferably, it is 80 wt% or less. When the content of the monomer component y1 in the polymer Y is a value within the above range, for example, when the polymer Y includes the monomer component y2 described in detail later as the monomer component, the unit The effects as described above can be expressed more significantly without inhibiting the function of the monomer component y2. On the other hand, when the content of the monomer component y1 in the polymer Y is less than the lower limit value, the effect of including the monomer component y1 may not be sufficiently exhibited. On the other hand, when the content of the monomer component y1 in the polymer Y exceeds the upper limit, for example, when the polymer Y includes the monomer component y2 described in detail later as the monomer component, Accordingly, the content of the monomer component y2 may be reduced, and the function of the monomer component y2 may not be sufficiently exhibited. In addition, when the colored portion is formed, when the dispersion medium is removed from the color filter ink applied on the substrate, the viscosity of the color filter ink tends to increase with an increase in the solid content concentration. Involuntary unevenness is likely to occur on the surface of the colored portion. In addition, when the polymer Y is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component y1. can do. Moreover, when the polymer Y is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component y1 at the content as described above.

(Monomer component y2)
The polymer Y may contain the monomer component y2 represented by the following formula (16) as a monomer component.

  By containing such a monomer component y2 as a monomer component (particularly, together with the monomer component y1 described above), a resin material at the time of storage of color filter ink or at the time of droplet discharge, etc. In the curing treatment performed in a heating environment, the unintentional reaction (polymerization reaction) can be more reliably prevented, and the curing reaction (polymerization reaction) of the resin material can be suitably advanced. In particular, in the curing treatment under a heating environment, the rising of the polymerization reaction of the resin material can be improved, and the polymerization reaction can be continuously advanced. Moreover, the hardness etc. of the colored part formed can be made excellent by containing the monomer component y2 as a monomer component.

  Further, since the polymer Y contains the monomer component y2, the affinity and phase with the above-described resin components (polymer M, polymer X) and resin components (polymer Z, polymer W) described later are provided. The solubility can be made sufficiently excellent. As a result, even when the color filter ink contains a resin component other than the polymer Y, as a result, the discharge stability of the color filter ink can be improved, and the color filter ink The colored portion formed using is excellent in transparency (a reduction in light transmittance due to the opacity of the resin material is prevented), particularly excellent in adhesion to the substrate, and is less prone to problems such as cracks. On the other hand, if the monomer component y2 is not included as a monomer component, when other resin components (polymer M, polymer X, polymer Z, polymer W) are included, the other resin components It is difficult to make the compatibility and compatibility sufficiently excellent, and the color filter ink is inferior in ejection stability, and the produced color filter has uneven color. It may be difficult to make the contrast, durability, reliability, etc. sufficiently excellent.

  An example of the polymer Y containing the monomer component y2 as a monomer component is represented by the following formula (20).

The content of the monomer component y2 in the polymer Y (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 10 wt% or more and 70 wt% or less, and more preferably 20 wt% or more. More preferably, it is 60 wt% or less. When the content of the monomer component y2 in the polymer Y is a value within the above range, the above-described effects can be expressed more significantly without inhibiting the function of the monomer component y1 described above. Can do. On the other hand, when the content of the monomer component y2 in the polymer Y is less than the lower limit value, the effect of including the monomer component y2 may not be sufficiently exhibited. On the other hand, when the content of the monomer component y2 in the polymer Y exceeds the upper limit, the content of the monomer component y1 is relatively lowered, and the function of the monomer component y1 is not sufficiently exhibited. there is a possibility. In addition, the reactivity of the polymer Y at a relatively low temperature increases, and the storage stability of the color filter ink tends to decrease. In addition, when the polymer Y is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component y2. can do. Moreover, when the polymer Y is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component y2 with the content as described above.
In addition, the polymer Y may contain monomer components (other monomer components) other than the monomer components y1 and y2 described above. Thereby, for example, the effects derived from the chemical structures of other monomer components can be obtained while exhibiting the above-described characteristics.

When the polymer Y contains other monomer components (monomer components other than the monomer components y1 and y2), the content of other monomer components in the polymer Y (multiple types of other components) In the case where the monomer component is included, the sum of these contents) is preferably 15 wt% or less, and more preferably 10 wt% or less.
The weight average molecular weight of the polymer Y is preferably 1000 or more and 50000 or less, more preferably 1200 or more and 10,000 or less, and further preferably 1500 or more and 5000 or less. As a result, it is possible to make the color filter ink stable over time (long-term storage stability), the discharge stability of the color filter ink, and the color filter productivity sufficiently. Furthermore, the flatness of the colored portion formed using the color filter ink can be made more reliable, and the occurrence of color unevenness in the image displayed using the color filter can be more effectively achieved. Can be prevented.
Moreover, it is preferable that the dispersion degree (weight average molecular weight Mw / number average molecular weight Mn) of the polymer Y is 1 or more and 3 or less.
[Polymer Z]
The polymer Z includes a monomer component z1 represented by the following formula (21), a monomer component z2 represented by the following formula (22), and a monomer component z3 represented by the following formula (23): Is included. Examples of the polymer Z include those represented by the following formula (24).

By including such a polymer Z, the switching characteristics of the curing reaction as a resin material, the ejection stability of the color filter ink, the storage stability of the color filter ink, etc. can be made particularly excellent, A color filter can be produced stably over a long period of time, and as a result, the productivity of the color filter can be made particularly excellent. In addition, the hardness of the colored portion formed using the color filter ink can be made particularly excellent, and the surface of the colored portion formed using the color filter ink has unintentional irregularities. Can be more effectively prevented, and color unevenness and density unevenness in an image displayed using a color filter and a reduction in contrast ratio can be more effectively prevented. Further, by including the polymer Z, the storage stability of the color filter ink can be made particularly excellent. In addition, by including the polymer Z, the colored portion to be formed has adequate hardness while having sufficient hardness, and therefore the adhesion between the colored portion and the substrate is particularly excellent. In addition, the occurrence of defects such as cracks can be more reliably prevented.
The polymer Z may be substantially composed of a single compound, or may be a mixture of a plurality of types of compounds. However, when the polymer Z is a mixture of a plurality of types of compounds, each compound contains monomer components z1, z2, and z3.

(Monomer component z1)
The polymer Z contains the monomer component z1 represented by the formula (21) as a monomer component.
By containing such a monomer component z1 as a monomer component, an unintentional reaction (polymerization reaction) of the resin material at the time of storage of the color filter ink or at the time of droplet discharge is reliably prevented. In the curing treatment performed in a heating environment, the curing reaction (polymerization reaction) of the resin material can be more suitably progressed. That is, the switching characteristics of the curing reaction for the resin material can be made particularly excellent. In addition, by including the monomer component z1 as the monomer component, the long-term storage stability, ejection stability, and the like of the color filter ink can be made particularly excellent.

  In addition, since the polymer Z contains the monomer component z1, the affinity and phase with the above-described resin components (polymer M, polymer X, polymer Y) and the resin component (polymer W) described later. The solubility can be made sufficiently excellent. As a result, even when the color filter ink contains a resin component other than the polymer Z, the discharge stability of the color filter ink should be excellent while fully functioning each polymer. In addition, the colored portion formed using the color filter ink is particularly excellent in transparency (a reduction in light transmittance due to the opacity of the resin material is more effectively prevented) and adhesion to the substrate. It is particularly excellent, and problems such as cracks are less likely to occur.

  The content of the monomer component z1 in the polymer Z (value obtained by conversion in terms of the weight of the monomer used for the synthesis of the polymer) is preferably 50 wt% or more and 95 wt% or less, preferably 60 wt% or more. More preferably, it is 85 wt% or less. When the content of the monomer component z1 in the polymer Z is a value within the above range, the above-described effects are more prominent without inhibiting the functions of the monomer components z2 and z3 described in detail later. Can be expressed. In addition, when the polymer Z is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component z1. can do. Moreover, when the polymer Z is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component z1 at the content as described above.

(Monomer component z2)
The polymer Z contains the monomer component z2 represented by the above formula (22) as a monomer component.
By containing such a monomer component z2 as the monomer component, the color filter ink can be spread more favorably on the substrate, and mixing of bubbles and the like can be reliably prevented. A colored portion having excellent adhesion to the substrate can be formed more suitably. In addition, when the color filter ink contains a dispersant in addition to the pigment, by containing the monomer component z2 as a monomer component, not only the dispersion stability of the pigment but also the dispersion stability of the dispersant. Can also be made particularly excellent. As a result, the pigment dispersion stability and the long-term storage stability of the color filter ink can be made particularly excellent.

  The content of the monomer component z2 in the polymer Z (value obtained by conversion based on the weight of the monomer used for the synthesis of the polymer) is preferably 3 wt% or more and 35 wt% or less, preferably 10 wt% or more. More preferably, it is 25 wt% or less. When the content of the monomer component z2 in the polymer Z is a value within the above range, the above-described monomer component z1 and the above-described monomer component z3 described in detail later are not inhibited. Such an effect can be expressed more remarkably. In addition, when the polymer Z is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is used as the content value of the monomer component z2. can do. Further, when the polymer Z is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component z2 at the above-described content.

(Monomer component z3)
The polymer Z contains the monomer component z3 represented by the formula (23) as a monomer component.
Such a monomer component z3 is a component that contributes to the curing of the resin material in the curing process, similarly to the monomer component x1, x2 and the like described above. However, the monomer component x1, x2, etc. Whereas the monomer component z3 has a function of increasing the hardness of the colored portion to be formed, the monomer component z3 gives an appropriate flexibility to the formed colored portion, and the substrate on which the colored portion is provided. Even when deformation (for example, thermal expansion, thermal contraction, etc.) occurs, it has a function of following the deformation and maintaining the adhesion of the colored portion to the substrate or the like. Thereby, for example, even when the manufactured color filter is repeatedly exposed to a rapid temperature change accompanying image display, good adhesion can be maintained, and problems such as light leakage (white spots, bright spots), etc. Can be prevented more reliably. That is, the durability of the color filter can be made particularly excellent.

The monomer component z3 has a sufficiently low reactivity in the polymer Z at a relatively low temperature (for example, 100 ° C. or lower), whereas the monomer component z3 has a sufficient reactivity in the curing process performed in a heating environment. It is what has. Therefore, the curing reaction of the resin material in the curing process performed in a heated environment while reliably preventing the unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink or droplet discharge. (Polymerization reaction) can be suitably advanced.
Further, by containing the monomer component z3 as a monomer component, when the dispersion medium is removed from the color filter ink applied on the substrate during the formation of the colored portion, the solid content concentration increases. Thus, the thixotropic property and viscosity of the color filter ink are increased, and it is possible to reliably prevent the occurrence of unintended irregularities on the surface of the colored portion to be formed.

The content of the monomer component z3 in the polymer Z (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 2 wt% or more and 30 wt% or less, preferably 5 wt% or more. More preferably, it is 20 wt% or less. When the content of the monomer component z3 in the polymer Z is a value within the above range, the above-described effects are more remarkably exhibited without inhibiting the functions of the monomer components z1 and z2. Can be made. In addition, when the polymer Z is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component z3. can do. Further, when the polymer Z is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component z3 at the above-described content.
In addition, the polymer Z may contain monomer components (other monomer components) other than the monomer components z1, z2, and z3 described above. Thereby, for example, the effects derived from the chemical structures of other monomer components can be obtained while exhibiting the above-described characteristics.

When the polymer Z includes other monomer components (monomer components other than the monomer components z1, z2, and z3), the content of other monomer components in the polymer Z (multiple types) When the other monomer component is included, the sum of these contents) is preferably 15 wt% or less, more preferably 10 wt% or less.
The weight average molecular weight of the polymer Z is preferably 5000 or more and 50000 or less, and more preferably 6000 or more and 15000 or less. As a result, it is possible to make the color filter ink stable over time (long-term storage stability), the discharge stability of the color filter ink, and the color filter productivity sufficiently. Furthermore, the flatness of the colored portion formed using the color filter ink can be made more reliable, and the occurrence of color unevenness in the image displayed using the color filter can be more effectively achieved. Can be prevented.
Further, the dispersity (weight average molecular weight Mw / number average molecular weight Mn) of the polymer Z is preferably 1 or more and 3 or less.

[Polymer W]
The polymer W includes a monomer component w1 represented by the following formula (25), a monomer component w2 represented by the following formula (26), and a monomer component w3 represented by the following formula (27): And a monomer component w4 represented by the following formula (28). An example of the polymer W is represented by the following formula (29).

By including such a polymer W, the switching characteristics of the curing reaction as a resin material, the discharge stability of the color filter ink, the storage stability of the color filter ink, and the like can be made particularly excellent. A color filter can be produced stably over a long period of time, and as a result, the productivity of the color filter can be made particularly excellent. In addition, the hardness of the colored portion formed using the color filter ink can be made particularly excellent, and the surface of the colored portion formed using the color filter ink has unintentional irregularities. Can be more effectively prevented, and color unevenness and density unevenness in an image displayed using a color filter and a reduction in contrast ratio can be more effectively prevented. Further, by containing the polymer W, the storage stability of the color filter ink can be made particularly excellent. In addition, by including the polymer W, the colored portion to be formed has adequate hardness while having sufficient hardness, and therefore, the adhesion between the colored portion and the substrate is particularly excellent. In addition, the occurrence of defects such as cracks can be more reliably prevented.
The polymer W may be substantially composed of a single compound, or may be a mixture of a plurality of types of compounds. However, when the polymer W is a mixture of a plurality of types of compounds, each compound contains monomer components w1, w2, w3, and w4.

(Monomer component w1)
The polymer W contains the monomer component w1 represented by the formula (25) as a monomer component.
By containing such a monomer component w1 as the monomer component, an unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink or droplet discharge is reliably prevented. In the curing treatment performed in a heating environment, the curing reaction (polymerization reaction) of the resin material can be more suitably progressed. That is, the switching characteristics of the curing reaction for the resin material can be made particularly excellent. Further, by containing the monomer component w1 as the monomer component, the long-term storage stability, ejection stability, and the like of the color filter ink can be made particularly excellent.

  Further, since the polymer W contains the monomer component w1, the affinity and compatibility with the above-described resin components (polymer M, polymer X, polymer Y, polymer Z) are sufficiently excellent. Can be. As a result, even when the color filter ink contains a resin component other than the polymer W, the discharge stability of the color filter ink should be excellent while fully exhibiting the function of each polymer. In addition, the colored portion formed using the color filter ink is particularly excellent in transparency (a reduction in light transmittance due to the opacity of the resin material is more effectively prevented) and adhesion to the substrate. It is particularly excellent, and problems such as cracks are less likely to occur.

  The content of the monomer component w1 in the polymer W (value obtained by conversion based on the weight of the monomer used for polymer synthesis) is preferably 25 wt% or more and 75 wt% or less, and 40 wt% or more. More preferably, it is 60 wt% or less. When the content of the monomer component w1 in the polymer W is a value within the above range, the above-described effects can be achieved without inhibiting the functions of the monomer components w2, w3, and w4 described in detail later. It can be expressed more significantly. In addition, when the polymer W is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component w1. can do. Moreover, when the polymer W is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component w1 at the content as described above.

(Monomer component w2)
The polymer W contains the monomer component w2 represented by the above formula (26) as a monomer component.
By including such a monomer component w2 as a monomer component, wetting and spreading of the color filter ink onto the substrate can be improved, and mixing of bubbles and the like can be reliably prevented. A colored portion having excellent adhesion to the substrate can be formed more suitably. In addition, when the color filter ink contains a dispersant in addition to the pigment, by including the monomer component w2 as the monomer component, not only the pigment dispersion stability but also the dispersion stability of the dispersant. Can also be made particularly excellent. As a result, the pigment dispersion stability and the long-term storage stability of the color filter ink can be made particularly excellent.

  The content of the monomer component w2 in the polymer W (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 2 wt% or more and 25 wt% or less, preferably 5 wt% or more. More preferably, it is 15 wt% or less. When the content of the monomer component w2 in the polymer W is a value within the above range, without inhibiting the functions of the monomer component w1 and the monomer components w3 and w4 described in detail later, The effects as described above can be expressed more remarkably. In addition, when the polymer W is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is used as the content value of the monomer component w2. can do. Moreover, when the polymer W is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component w2 at the content rate described above.

(Monomer component w3)
The polymer W contains the monomer component w3 represented by the above formula (27) as a monomer component.
By including the monomer component w3 as the monomer component, the chemical resistance, solvent resistance, and the like of the colored portion to be formed can be made particularly excellent. Thereby, even if it is a case where post-processing, such as chemical | medical agent application | coating and washing | cleaning, is performed after hardening processing, generation | occurrence | production of the bad influence by these can be prevented more reliably.

In addition, the monomer component w3 has a sufficiently low reactivity in a polymer (polymer W) at a relatively low temperature (for example, 100 ° C. or lower), but in a curing process performed in a heating environment. Have sufficient reactivity. Therefore, the curing reaction of the resin material in the curing process performed in a heated environment while reliably preventing the unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink or droplet discharge. (Polymerization reaction) can be suitably advanced.
In addition, by including the monomer component w3 as the monomer component, for example, the long-term storage stability and ejection stability of the color filter ink can be improved.

  The content of the monomer component w3 in the polymer W (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 5 wt% or more and 50 wt% or less, and preferably 10 wt% or more. More preferably, it is 40 wt% or less. When the content of the monomer component w3 in the polymer W is a value within the above range, without inhibiting the functions of the monomer components w1, w2 and the monomer component w4 described in detail later, The effects as described above can be expressed more remarkably. In addition, when the polymer W is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is adopted as the content value of the monomer component w3. can do. Moreover, when the polymer W is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component w3 at the above-described content.

(Monomer component w4)
The polymer W contains the monomer component w4 represented by the above formula (28) as a monomer component.
By containing such a monomer component w4 as a monomer component, the solid content concentration is increased when the dispersion medium is removed from the color filter ink applied on the substrate during the formation of the colored portion. Along with this, the thixotropic property and viscosity of the color filter ink are increased, and it is possible to more reliably prevent the occurrence of unintentional irregularities on the surface of the formed colored portion.

  Further, by containing the monomer component w4 as a monomer component, the hydrophobicity of the entire resin material can be suitably adjusted, and the affinity and compatibility of each polymer constituting the resin material are particularly good. It can be excellent. As a result, the discharge stability of the color filter ink can be made particularly excellent, and the colored portion formed using the color filter ink has excellent transparency (light due to the opacity of the resin material). The decrease in transmittance is prevented), and the adhesion to the substrate is particularly excellent, and problems such as cracks are less likely to occur.

  The content of the monomer component w4 in the polymer W (value obtained by conversion in terms of the weight of the monomer used for polymer synthesis) is preferably 3 wt% or more and 40 wt% or less, preferably 5 wt% or more. More preferably, it is 30 wt% or less. When the content of the monomer component w4 in the polymer W is a value within the above range, the above-described effects are more remarkable without inhibiting the functions of the monomer components w1, w2, and w3. Can be expressed. In addition, when the polymer W is a mixture of a plurality of types of compounds, the weighted average value (weighted average value based on the weight ratio) for these compounds is used as the content value of the monomer component w4. can do. Moreover, when the polymer W is a mixture of a plurality of types of compounds, it is preferable that all of these compounds contain the monomer component w4 with the content as described above.

  The weight average molecular weight of the polymer W is preferably 5000 or more and 50000 or less, and more preferably 6000 or more and 15000 or less. As a result, it is possible to make the color filter ink stable over time (long-term storage stability), the discharge stability of the color filter ink, and the color filter productivity sufficiently. Furthermore, the flatness of the colored portion formed using the color filter ink can be made more reliable, and the occurrence of color unevenness in the image displayed using the color filter can be more effectively achieved. Can be prevented.

Further, the dispersity (weight average molecular weight Mw / number average molecular weight Mn) of the polymer W is preferably 1 or more and 3 or less.
In addition, each polymer mentioned above should just have the structure (each partial structure corresponding to each monomer component) as mentioned above, and it synthesize | combines using each monomer component itself mentioned above. It may be synthesized, or may be synthesized using a component (precursor, derivative, etc.) different from the monomer component described above.

The content of the resin material in the color filter ink is preferably 0.7 wt% or more and 18 wt% or less, more preferably 1.0 wt% or more and 15 wt% or less, and 3.0 wt% or more and 12 wt%. % Or less is more preferable.
When the content of the resin material in the color filter ink is C _R [wt%] and the content of the pigment in the color filter ink is C _P [wt%], 0.2 ≦ C _R / C _It is preferable to satisfy the relationship of _P ≦ 9.0, more preferably satisfy the relationship of 0.3 ≦ C _R / C _P ≦ 5.0, and 0.4 ≦ C _R / C _P ≦ 3.5. It is more preferable to satisfy this relationship. By satisfying such a relationship, the contrast of the produced color filter can be improved, and sufficient contrast is ensured even when the thickness of the colored part is made thinner. can do.
The resin material constituting the color filter ink is a polymer other than those described above (for example, a thermoplastic polymer or a curable polymer other than the above-described polymers M, X, Y, Z, and W). It may be included.

[Other ingredients]
The color filter ink may contain components other than the above (other components).
Examples of such components include various crosslinking agents, thermal acid generators, photoacid generators, various polymerization initiators, acid crosslinking agents, surfactants, sensitizers, light stabilizers, various dyes, and various dispersants. , Luminescent materials, leveling agents, antioxidants, UV absorbers, adhesion improvers, various polymerization accelerators, various light stabilizers, ceramics such as glass, zirconia, alumina, titanium oxide, adhesion promoters, UV absorbers Further, an aggregation inhibitor or the like can be used.

  The leveling agent smoothes the surface of the color filter ink applied in the cell and lowers the colored portion by reducing the surface tension of the color filter ink. For this reason, when the color filter ink has a leveling agent, it acts synergistically with the effect of the resin material as described above, and the surface of the color filter ink in the cell can be made flatter. For this reason, the colored part to be formed becomes flatter.

  Examples of the leveling agent include acrylic leveling agents, vinyl ether leveling agents, silicone leveling agents, fluorine-silicon leveling agents, and acetylene glycol leveling agents. Among such leveling agents, acrylic leveling agents, vinyl ether leveling agents, and acetylene glycol leveling agents are preferably used. In particular, it is preferable to use one or more selected from Surfinol DF-58, LHP-95, LHP-90, and LF1970 in combination. Thereby, the surface of the colored part to be formed is further flattened, and the obtained color filter has particularly small color unevenness and density unevenness in each part.

The antioxidant can prevent deterioration of the color filter ink due to oxidation or the like, and can prevent deterioration of the resin material or pigment due to heat, light, or the like in the colored portion formed by the color filter ink.
Examples of the antioxidant include various phosphorus-based antioxidants, various sulfur-based antioxidants, various hindered phenol-based antioxidants, various antioxidants such as various hindered amine-based antioxidants, and the like. Among these, it is preferable to use at least one of a hindered amine antioxidant and a hindered phenol antioxidant, more preferably a hindered phenol antioxidant, and even more preferably TINUVIN152. Such an antioxidant suitably prevents the color filter ink and the colored portion from deteriorating effectively, and does not affect the optical properties such as color, brightness, and contrast ratio in the formed colored portion. is there.

  The viscosity at 25 ° C. of the color filter ink (viscosity measured using a vibration viscometer) is not particularly limited, but is preferably 4 mPa · s or more and 12 mPa · s or less, preferably 5 mPa · s or more and 11 mPa · s. The following is more preferable. When the viscosity of the color filter ink is within the above range, clogging in the droplet discharge head is performed while the variation in the appropriate amount of the color filter ink to be discharged is particularly small in droplet discharge by the inkjet method. Occurrence and the like can be prevented more reliably. The viscosity of the color filter ink can be measured using, for example, a vibration viscometer, and can be performed in particular in accordance with JIS Z8809.

<Second colored portion forming step>
Next, a sheet material made of a material containing a colorant and a photosensitive resin is attached to the surface of the substrate 11 on which the light shielding portion 13 and the colored portions 12A, 12B, and 12C are provided. By exposure and development, a cyan purple colored portion 12D, a reddish purple (magenta) colored portion 12E, and a yellow (yellow) colored portion 12F are formed (1f to 1k).

  As described above, the present invention is characterized in that the colored portion to be included in the color filter is formed using different methods in different steps. In this way, by forming the colored portion that the color filter should have in different processes and using different methods, the functions of the colored portion of each color are sufficiently exhibited with excellent productivity, and the color reproduction range is wide. In addition, it is possible to prevent color unevenness and the like, display an image with excellent contrast, and obtain a color filter with excellent durability.

  On the other hand, for example, when the colored portions of all colors are formed by the photolithography method, the productivity of the color filter is remarkably lowered, and the amount of discarded materials for forming the colored portions is increased, which also saves resources. It is not preferable. In particular, when a red colored portion, a green colored portion, and a blue colored portion are to be formed using a sheet material as described in detail below, the following problems occur. That is, as described above, in view of color developability, durability, wide color reproduction range, etc., specific pigments are used for forming the red colored portion, the green colored portion, and the blue colored portion, respectively. However, when these pigments are used as the constituent material of the sheet material, it becomes difficult to make the sheet material sufficiently excellent in the followability and adhesion to the substrate, and finally obtained. It is difficult to make the color filter obtained sufficiently durable and reliable.

  Further, when the colored portions of all colors are formed by the ink jet method, the following problems occur. That is, the ink used for forming the red colored portion, the green colored portion, and the blue colored portion as described above is excellent in droplet discharge properties by the ink jet method, whereas the colored portion of indigo purple (cyan) In general, an ink containing a colorant used for forming a reddish purple (magenta) colored portion and a yellow (yellow) colored portion is inferior in ejection stability by the ink jet method, and therefore has a plurality of same (same color) types. Variations in the amount of ink applied between the cells for forming the colored portions occur, causing color unevenness and density unevenness in the display image of the color filter. Further, as will be described in detail later, the brightness and contrast of a display image using a color filter are used to form a cyan colored portion, a magenta colored portion, and a yellow colored portion. It is preferable to use a dye from the viewpoint of improving the quality of the ink. However, when such a dye is used in an ink applied to the ink jet method, it is contained in the ink when the solvent is removed from the ink and the resin material is cured Dye deterioration is likely to occur, and it becomes difficult to widen the color reproduction range of a display image using a color filter finally obtained or to achieve high contrast.

  Further, in the conventional photolithography method, a liquid photosensitive material is applied to form a coating film, whereas in the second colored portion forming step of the present invention, a colorant and a photosensitive resin are included. A sheet material made of a material is attached, and then exposed and developed to form a cyan-purple (cyan) colored portion, a reddish-purple (magenta) colored portion, and a yellow (yellow) colored portion. Thereby, the variation in thickness within a single colored portion and the variation in thickness between pixels can be made particularly small. Further, the productivity of the color filter as a whole can be made sufficiently high. Moreover, it can respond | correspond suitably also to a large sized board | substrate.

  In particular, in the present embodiment, in this step, the process (1f) for sticking the sheet material 12D ′ for forming the cyan colored portion 12D, the sheet material 12D ′ is exposed in a predetermined pattern, A process (1g) for developing, a process (1h) for attaching a sheet material 12E ′ for forming a colored portion 12E of reddish purple (magenta), an exposure of the sheet material 12E ′ in a predetermined pattern, and further development A process (1i) to be performed, a process (1j) for sticking a sheet material 12F ′ for forming the yellow colored portion 12F, a process for exposing the sheet material 12F ′ in a predetermined pattern, and further developing ( 1k).

  Sheet material containing a cyan-colorant (especially a dye as will be described later), sheet material containing a magenta colorant (especially a dye as described later), yellow (yellow) coloring In general, a sheet material containing an agent (particularly, a dye as will be described later) is excellent in followability to a substrate having unevenness provided with a light shielding portion and the like, and adhesion to the substrate. For this reason, the durability and reliability of the color filter finally obtained can be made excellent.

In this step, the sheet material (12D ′, 12E ′, 12F ′) may be attached to the substrate 11 by any method, but the sheet material (12D ′, 12E ′, 12F ′) provided on the base film. Is preferably transferred onto the substrate 11. Thereby, the productivity of the color filter 1 can be made particularly excellent.
The sheet material (12D ′, 12E ′, 12F ′) used in this step may be any material that includes a colorant and a photosensitive resin, but preferably includes a dye as a colorant. Thereby, the brightness and contrast of the display image using the produced color filter 1 can be made particularly excellent.
In particular, the sheet material 12D ′ preferably includes a compound having a chemical structure represented by the following formula (36) as a colorant (dye).

As a result, the above-described effects can be exhibited more remarkably, and the color reproduction range of the color filter 1 can be made particularly wide.
Moreover, it is preferable that sheet | seat material 12E 'contains the compound which has a chemical structure represented by following formula (37) as a coloring agent (dye).

As a result, the above-described effects can be exhibited more remarkably, and the color reproduction range of the color filter 1 can be made particularly wide.
As the colorant (dye) constituting the sheet material 12E ′, among the compounds having a chemical structure represented by the above formula (37), those represented by the following formula (39) are particularly preferable.

Thereby, the effects as described above are more remarkably exhibited.
Moreover, it is preferable that sheet | seat material 12F 'contains the compound which has a chemical structure represented by following formula (38) as a coloring agent (dye).

As a result, the above-described effects can be exhibited more remarkably, and the color reproduction range of the color filter 1 can be made particularly wide.
As the colorant (dye) constituting the sheet material 12F ′, among the compounds having the chemical structure represented by the above formula (38), in particular, the following formula (40), formula (41), and formula (42): Those represented are preferred.

Thereby, the effects as described above are more remarkably exhibited.
The monovalent group represented by R ³ and R ⁴ in the formula (40) is the same as the substituent of the aryl group described later, but an alkyl group, a cycloalkyl group, an aralkyl group, an alkoxy group, an aryl group, An amino group, a carboxyl group (which may be a salt) and a carbamoyl group are preferable, and an alkyl group (preferably a lower alkyl group having 1 to 5 carbon atoms such as methyl, ethyl, butyl and t-butyl) is preferable. More preferred. The details of these substituents are the same as those described later.

In the formula (40), the heterocyclic group represented by Ar ¹ and Ar ² is preferably a 5-membered or 6-membered heterocyclic ring, which may be further condensed. Further, it may be an aromatic heterocycle or a non-aromatic heterocycle. Examples of the heterocycle include pyridine, pyrazine, pyridazine, quinoline, isoquinoline, quinazoline, cinnoline, phthalazine, quinoxaline, pyrrole, indole, furan, benzofuran, thiophene, benzothiophene, pyrazole, imidazole, benzimidazole, triazole, oxazole, benz Examples thereof include oxazole, thiazole, benzothiazole, isothiazole, benzisothiazole, thiadiazole, isoxazole, benzisoxazole, pyrrolidine, piperidine, piperazine, imidazolidine, thiazoline and the like. Among them, an aromatic heterocyclic group is preferable, pyridine, pyrazine, pyridazine, pyrazole, imidazole, benzimidazole, triazole, benzoxazole, thiazole, benzothiazole, isothiazole, benzisothiazole, and thiadiazole are more preferable, imidazole, benzoxazole, Thiadiazole is more preferred, and thiadiazole (preferably 1,3,4-thiadiazole, 1,2,4-thiadiazole) is most preferred. These may have a substituent, and examples of the substituent are the same as those of the aryl group described later.

In formula (40), the aryl group represented by Ar ¹ and Ar ² includes a substituted or unsubstituted aryl group. As the substituted or unsubstituted aryl group, an aryl group having 6 to 30 carbon atoms is preferable. Examples of the substituent of the aryl group include a halogen atom, an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, a cyano group, a hydroxyl group, a nitro group, a carboxyl group (salt May be in the form), alkoxy group, aryloxy group, silyloxy group, heterocyclic oxy group, acyloxy group, carbamoyloxy group, alkoxycarbonyloxy group, aryloxycarbonyloxy, amino group (including anilino group), acylamino group, amino Carbonylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfamoylamino, alkyl and arylsulfonylamino, mercapto, alkylthio, arylthio, heterocyclic thio, sulfamoyl, sulfo (May be in the form of a salt), alkyl and arylsulfinyl groups, alkyl and arylsulfonyl groups, acyl groups, aryloxycarbonyl groups, alkoxycarbonyl groups, carbamoyl groups, imide groups, phosphino groups, phosphinyl groups, phosphinyloxy groups, A phosphinylamino group, a silyl group, etc. are mentioned. The aryl group represented by Ar ¹ and Ar ² is more preferably a substituted phenyl group (the substituent is preferably a carboxyl group or a sulfo group).

In Formula (41), the monovalent group represented by R ⁵ and R ⁶ is the same as R ³ and R ^{4 in} Formula (40). In the formula (41), the monovalent groups represented by R ⁷ and R ⁸ are the same as the above-described aryl substituents. Furthermore, R ⁷ and R ⁸ are preferably a halogen atom, OM (M is a hydrogen atom or a cation), an alkoxy group, an alkylthio group, an arylthio group, an amino group, or a heterocyclic group. These substituents are the same as described above. The divalent linking group represented by Ar ³ is an alkylene group (eg, methylene, ethylene, propylene, butylene, pentylene), an alkenylene group (eg, ethenylene, propenylene), or an alkynylene group (eg, ethynylene, propynylene). , Arylene groups (for example, phenylene, naphthylene), divalent heterocyclic groups (for example, 6-chloro-1,3,5-triazine-2,4-diyl group, pyrimidine-2,4-diyl group, quinoxaline-2) , 3-diyl group, pyridazine-3,6-diyl), - O -, - CO -, - NR- (R is a hydrogen atom, an alkyl group or an aryl _{group), - S -, - SO} 2 -, - SO -, or combination thereof _{(e.g., -NHCH 2 CH 2 NH -,} - NHCONH- , etc.) is preferably.

In formula (42), the monovalent groups represented by R ⁹ and R ¹⁰ are the same as R ³ and R ^{4 in} formula (40). The aryl group and heterocyclic group represented by Ar ⁴ and Ar ⁵ are the same as the aryl group and heterocyclic group of Ar ¹ and Ar ^{2 in} formula (40), and a heterocyclic group is preferable. The divalent linking group represented by Ar ⁶ is the same as Ar ^{3 in} formula (41).

"Color filter"
The color filter 1 obtained as described above has a configuration in which a colored portion 12 (12A, 12B, 12C, 12D, 12E, 12F) of six colors and a light shielding portion 13 are provided on one surface side of the substrate 11. It is what has.
One set of colored portions 12A, 12B, 12C, 12D, 12E, and 12F having different colors constitutes one pixel. In the color filter 1, a predetermined number of colored portions 12 are arranged in the horizontal direction and the vertical direction. For example, when the color filter 1 is a high-definition color filter, 1366 × 768 pixels are arranged, and when the color filter 1 is a full high-definition color filter, 1920 × 1080 pixels are arranged. In the case of a super high vision color filter, 7680 × 4320 pixels are arranged. Note that the color filter 1 may be provided with a spare pixel outside the effective pixel region, for example.
Since such a color filter 1 is manufactured using the method as described above, the color reproduction range is wide, the occurrence of color unevenness and the like can be prevented, and an image with excellent contrast can be displayed. It is also excellent in durability.

<Image display device>
Next, a preferred embodiment of a liquid crystal display device that is an image display device (electro-optical device) having the color filter 1 will be described.
FIG. 6 is a cross-sectional view showing a preferred embodiment of the liquid crystal display device. As shown in the figure, the liquid crystal display device 60 includes a color filter 1, a substrate (opposite substrate) 66 disposed on the side of the color filter 1 on which the colored portion 12 is provided, a color filter 1 and a substrate 66. And a polarizing plate 67 provided on the surface of the color filter 1 opposite to the surface facing the liquid crystal layer 62 (lower side in FIG. 6). And a polarizing plate 68 provided on the surface side opposite to the surface facing the liquid crystal layer 62 of the substrate 66 (upper side in FIG. 6). A common electrode 61 is provided on the surface of the color filter 1 where the coloring portion 12 and the light shielding portion 13 are provided (the surface opposite to the surface of the coloring portion 12 and the light shielding portion 13 facing the substrate 11). On the surface of the substrate (counter substrate) 66 facing the liquid crystal layer 62 and the color filter 1, pixel electrodes 65 are arranged in a matrix at positions corresponding to the colored portions 12 of the color filter 1. Further, an alignment film 64 is provided between the common electrode 61 and the liquid crystal layer 62, and an alignment film 63 is provided between the substrate 66 (pixel electrode 65) and the liquid crystal layer 62.

The substrate 66 is a substrate having optical transparency with respect to visible light, and is, for example, a glass substrate.
The common electrode 61 and the pixel electrode 65 are made of a material having optical transparency to visible light, and are made of, for example, ITO.
Although omitted in the drawing, a plurality of switching elements (for example, TFTs: thin film transistors) are provided so as to correspond to the respective pixel electrodes 65. For each pixel electrode 65 corresponding to each coloring portion 12, by controlling the voltage application state between the common electrode 61, in the region corresponding to each coloring portion 12 (each pixel electrode 65), Light transmittance can be controlled.

In the liquid crystal display device 60, light emitted from a backlight (not shown) enters from the polarizing plate 68 side (upper side in FIG. 6). And the light which permeate | transmitted the liquid crystal layer 62 and entered into each coloring part 12 (12A, 12B, 12C) of the color filter 1 is polarized as light of the color corresponding to each coloring part 12 (12A, 12B, 12C). The light is emitted from the plate 67 (lower side in FIG. 6).
Since the liquid crystal display device 60 includes the color filter 1 manufactured using the method as described above, an image having a wide color reproduction range, prevention of color unevenness, and excellent contrast can be obtained. It can be displayed stably over a period.

"Electronics"
An image display device (electro-optical device) 1000 such as a liquid crystal display device having the color filter 1 as described above can be used for display portions of various electronic devices.
FIG. 7 is a perspective view showing a configuration of a mobile (or notebook) personal computer to which the electronic apparatus of the present invention is applied.
In this figure, a personal computer 1100 includes a main body 1104 having a keyboard 1102 and a display unit 1106. The display unit 1106 is supported by the main body 1104 via a hinge structure so as to be rotatable. Yes.

In the personal computer 1100, the display unit 1106 includes an image display device 1000.
FIG. 8 is a perspective view showing a configuration of a mobile phone (including PHS) to which the electronic apparatus of the invention is applied.
In this figure, a cellular phone 1200 is provided with an image display device 1000 in a display unit, together with a plurality of operation buttons 1202, an earpiece 1204, and a mouthpiece 1206.

FIG. 9 is a perspective view showing the configuration of a digital still camera to which the electronic apparatus of the present invention is applied. In this figure, connection with an external device is also simply shown.
Here, an ordinary camera sensitizes a silver halide photographic film with a light image of a subject, whereas a digital still camera 1300 photoelectrically converts a light image of a subject with an imaging device such as a CCD (Charge Coupled Device). An imaging signal (image signal) is generated.

On the back of the case (body) 1302 in the digital still camera 1300, an image display device 1000 is provided in the display unit, and is configured to display based on an imaging signal from the CCD, and a finder that displays a subject as an electronic image. Function as.
A circuit board 1308 is installed inside the case. The circuit board 1308 is provided with a memory that can store (store) an imaging signal.

A light receiving unit 1304 including an optical lens (imaging optical system), a CCD, and the like is provided on the front side of the case 1302 (on the back side in the illustrated configuration).
When the photographer confirms the subject image displayed on the display unit and presses the shutter button 1306, the CCD image pickup signal at that time is transferred and stored in the memory of the circuit board 1308.

  In the digital still camera 1300, a video signal output terminal 1312 and an input / output terminal 1314 for data communication are provided on the side surface of the case 1302. As shown in the figure, a television monitor 1430 is connected to the video signal output terminal 1312 and a personal computer 1440 is connected to the input / output terminal 1314 for data communication as necessary. Further, the imaging signal stored in the memory of the circuit board 1308 is output to the television monitor 1430 or the personal computer 1440 by a predetermined operation.

  The electronic apparatus of the present invention includes, for example, a television (for example, a liquid crystal television), a video camera, a viewfinder type, a monitor in addition to the above-described personal computer (mobile personal computer), mobile phone, and digital still camera. Direct-view video tape recorder, laptop personal computer, car navigation system, pager, electronic notebook (including communication function), electronic dictionary, calculator, electronic game device, word processor, workstation, videophone, security TV monitor , Electronic binoculars, POS terminals, devices equipped with touch panels (for example, cash dispensers of financial institutions, automatic ticket vending machines), medical devices (for example, electronic thermometers, blood pressure monitors, blood glucose meters, electrocardiographic display devices, ultrasonic diagnostic devices, endoscopy) Mirror display device), Group detector, various measuring instruments, gages (e.g., gages for vehicles, aircraft, and ships), a flight simulator, various monitors such, can be applied to the projection type display device such as a projector.

As mentioned above, although this invention was demonstrated based on suitable embodiment, this invention is not limited to these.
For example, in the above-described embodiment, after the color filter inks corresponding to the three colored portions are applied to the cells in the first colored portion forming step, the color filter inks for the respective colors in the cells are collectively collected. In the above description, the dispersion medium is removed and the curable resin is cured, that is, the curing process is performed only once. However, the ink application and the curing process are repeated for each color. Also good.

In the above-described embodiment, in the second colored portion forming step, the cyan colored portion, the magenta colored portion, and the yellow colored portion are formed in this order. However, the order in which these colored portions are formed is not limited to this.
Further, the arrangement of the colored portions of the respective colors is not limited to the configuration shown in the drawing.

In the above-described embodiment, the color filter has been described as having six (six colors) colored portions, but may have seven or more colored portions.
In addition, each unit constituting the color filter, the image display device, and the electronic device can be replaced with an arbitrary one that exhibits the same function, or another configuration can be added. For example, in the color filter of the present invention, a protective film that covers the colored portion may be provided on the surface of the colored portion opposite to the surface facing the substrate. Thereby, damage, deterioration, etc. of a coloring part can be prevented more effectively.

Next, specific examples of the present invention will be described.
[1] Synthesis of polymer (Synthesis Example 1)
In a reaction vessel (flask) equipped with a stirrer, reflux condenser, dropping funnel, nitrogen inlet tube and thermometer, 100 parts by weight of diethylene glycol monobutyl ether acetate as a solvent (solvent) was added and heated to 80 ° C. Subsequently, 2- [O- (1′-methylpropylideneamino) carboxyamino] ethyl methacrylate (= 2- (1-methylpropylideneaminooxycarbonylaminoethyl) as the monomer component m1 was placed in the flask. ) Methacrylate): 60 parts by weight, methacrylic acid as monomer component m2: 20 parts by weight, stearyl methacrylate as monomer component m3: 20 parts by weight in diethylene glycol monobutyl ether acetate: 30 parts by weight It dropped in the flask over 4 hours using the dripping pump. On the other hand, a solution prepared by dissolving 5 parts by weight of azobisdimethylvaleronitrile as a radical initiator (polymerization initiator) in 90 parts by weight of diethylene glycol monobutyl ether acetate was added to the flask for 4 hours using another dropping pump. It was dripped in. After completion of the dropping of the polymerization initiator, the temperature is maintained (aged) at the same temperature for 4 hours, and then cooled to room temperature, and the monomer component m1, m2, m3 is represented by the above formula (8) A polymer M1 as a combined M was obtained.

(Synthesis Examples 2 to 8)
The same operation as in Synthesis Example 1 except that the solvent (solvent) used in the synthesis of the polymer, the types of monomer components, the ratio of each component were adjusted, and the composition of the polymer was changed as shown in Table 1. Went. As a result, seven types of polymers M (polymers M2 to M8) were obtained.
(Synthesis Example 9)
In a reaction vessel (flask) equipped with a stirrer, reflux condenser, dropping funnel, nitrogen inlet tube and thermometer, 314 parts by weight of diethylene glycol monobutyl ether acetate as a solvent (solvent) was added and heated to 90 ° C. Subsequently, 2,2′-azobis (isobutyronitrile) (AIBN) as a radical initiator: 20 parts by weight and diethylene glycol monobutyl ether acetate (solvent): 30 parts by weight were added to the flask. The monomer component (compound) represented by the formula (11) x1: 180 parts by weight, the monomer component (compound) x2 represented by the formula (12): 90 parts by weight, the formula (13) Monomer component (compound) x3: 15 parts by weight, monomer component (compound) x4: 15 parts by weight represented by the above formula (14), 2,2'-azobis (isobutyronitrile) ) (AIBN): A solution prepared by dissolving 50 parts by weight of diethylene glycol monobutyl ether acetate: 200 parts by weight was added dropwise using a dropping pump over 5 hours, and further aged for 4 hours. Then, it cooled to room temperature and obtained the polymer X1 as the polymer X represented by the said Formula (19) including the monomer components x1, x2, x3, x4.

(Synthesis Examples 10 to 16)
The same operation as in Synthesis Example 9 was performed except that the type of solvent (solvent) used in the synthesis of the polymer and the ratio of each component were adjusted and the composition of the polymer was changed as shown in Table 1. As a result, seven types of polymers X (polymers X2 to X8) were obtained.
(Synthesis Example 17)
In a reaction vessel (flask) equipped with a stirrer, reflux condenser, dropping funnel, nitrogen inlet tube and thermometer, 314 parts by weight of diethylene glycol monobutyl ether acetate as a solvent (solvent) was added and heated to 90 ° C. Subsequently, 2,2′-azobis (isobutyronitrile) (AIBN) as a radical initiator: 20 parts by weight and diethylene glycol monobutyl ether acetate (solvent): 30 parts by weight were added to the flask. , Monomer component (compound) y1: 200 parts by weight represented by formula (15), monomer component (compound) y2 represented by formula (16): 100 parts by weight, 2,2′- A solution prepared by dissolving 50 parts by weight of azobis (isobutyronitrile) (AIBN) in 200 parts by weight of diethylene glycol monobutyl ether acetate was added dropwise over 5 hours using a dropping pump, and further aged for 4 hours. Then, it cooled to room temperature and obtained the polymer Y1 as the polymer Y containing the monomer components y1 and y2 and represented by the said Formula (20).

(Synthesis Examples 18 and 19)
The same operation as in Synthesis Example 17 was performed except that the type of solvent (solvent) used in the synthesis of the polymer and the ratio of each component were adjusted and the composition of the polymer was changed as shown in Table 1. As a result, two types of polymers Y (polymers Y2 and Y3) were obtained.
(Synthesis Example 20)
Into a reaction vessel (flask) equipped with a stirrer, reflux condenser, dropping funnel, nitrogen inlet tube and thermometer, 246 parts by weight of diethylene glycol monobutyl ether acetate as a solvent (solvent) was added and heated to 80 ° C. Subsequently, in the flask, the monomer component (compound) represented by the above formula (21) z1: 276 parts by weight, the monomer component (compound) represented by the above formula (22) z2: 51 weights. A solution obtained by dissolving 39 parts by weight of azobisdimethylvaleronitrile as a radical initiator in 360 parts by weight of diethylene glycol monobutyl ether acetate was added dropwise over 5 hours using a dropping pump, and further aged for 3 hours.
Thereafter, 26 parts by weight of glycidyl methacrylate and 2 parts by weight of methoquinone were added to the flask and reacted at 110 ° C. for 10 hours. Then, it cooled to room temperature and obtained the polymer Z1 as the polymer Z represented by the said Formula (24) including the monomer components z1, z2, and z3.

(Synthesis Examples 21 and 22)
The same operation as in Synthesis Example 20 was performed except that the type of solvent (solvent) used in the synthesis of the polymer and the ratio of each component were adjusted and the composition of the polymer was changed as shown in Table 1. As a result, two types of polymers Z (polymers Z2 and Z3) were obtained.
(Synthesis Example 23)
In a reaction vessel (flask) equipped with a stirrer, reflux condenser, dropping funnel, nitrogen inlet tube and thermometer, 180 parts by weight of diethylene glycol monobutyl ether acetate as a solvent (solvent) was added and heated to 85 ° C. Subsequently, the monomer component (compound) w1: 188 parts by weight represented by the above formula (25) and the monomer component (compound) w2 represented by the above formula (26) w: 34 weights in the flask. Parts: monomer component (compound) w3: 74 parts by weight represented by the above formula (27), monomer component (compound) w4: 74 parts by weight represented by the above formula (28), as a radical initiator A solution prepared by dissolving 64 parts by weight of azobisdimethylvaleronitrile in 386 parts by weight of diethylene glycol monobutyl ether acetate was added dropwise over 5 hours using a dropping pump, and further aged for 3 hours. Then, it cooled to room temperature and obtained the polymer W1 as the polymer W represented by the said Formula (29) including the monomer components w1, w2, w3, w4.

(Synthesis Examples 24 and 25)
The same operation as in Synthesis Example 23 was performed except that the kind of solvent (solvent) used in the synthesis of the polymer and the ratio of each component were adjusted and the composition of the polymer was changed as shown in Table 1. As a result, two types of polymers W (polymers W2 and W3) were obtained.
In Table 1, the ratio of each monomer component which comprises each polymer synthesize | combined in the synthesis examples 1-25, and the weight average molecular weight Mw of each polymer were shown collectively. In the table, methacrylic acid 2- [O- (1′-methylpropylideneamino) carboxyamino] ethyl (= 2- (1-methylpropylideneaminooxycarbonylaminoethyl) methacrylate) is represented by “m1a” and methacrylic acid. 2- (3,5-dimethylpyrazol-1-yl) carbonylaminoethyl is denoted by “m1b”, 2- (3,5-dimethylpyrazol-1-yl) carbonylaminoethyl acrylate is denoted by “m1c”, Methacrylic acid is indicated by “m2a”, acrylic acid is indicated by “m2b”, stearyl methacrylate is indicated by “m3a”, behenyl methacrylate is indicated by “m3b”, palmityl acrylate is indicated by “m3c”, and lignoceryl methacrylate is indicated. Indicated as “m3d”, methyl methacrylate as “m4a”, acrylic Ethyl is indicated by “m4b”, pentyl acrylate is indicated by “m4c”, styrene is indicated by “m5”, 2-hydroxyethyl methacrylate is indicated by “m6”, and 3,4-epoxytricyclo [5.2. A mixture of 1.0 ^2,6 ] decan-9-yl acrylate and 3,4-epoxytricyclo [5.2.1.0 ^2,6 ] decan-8-yl acrylate was designated “m7”. The polymers synthesized as described above all had a dispersity (weight average molecular weight Mw / number average molecular weight Mn) in the range of 1 or more and 3 or less.

[2] Production of color filter (Example 1)
First, a soda glass substrate (G5 size: 1100 × 1300 mm) on which a silica (SiO ₂ ) film for preventing elution of sodium ions was formed on both surfaces was prepared and subjected to a cleaning treatment.
Next, a liquid radiation-sensitive composition for forming a light-shielding part containing carbon black was applied to one entire surface to form a coating film (see (1b) in FIGS. 1 and 3).

Next, prebaking was performed under the conditions of heating temperature: 110 ° C. and heating time: 120 seconds.
Thereafter, radiation is applied through a photomask, post-exposure baking (PEB) is performed, and subsequently, atmospheric pressure in which a gas in which CF ₄ and He gas are mixed at a volume ratio of 1: 9 is introduced. With a plasma polymerization apparatus, the output is 800 W, the distance from the plasma generator to the table: 0.5 mm, the processing table speed: 10 m / s, only on the surface of the coating film that has been pre-baked and post-exposure baked. Fluorine doped. Then, the light-shielding part (partition) was formed by performing the development process using an alkali developing solution, and also performing the post-baking process (refer (1c) of FIG. 1 and FIG. 3). PEB was performed under the conditions of heating temperature: 110 ° C., heating time: 120 seconds, and radiation irradiation intensity: 150 mJ / cm ² . The development process was performed by, for example, a vibration dipping method. The development processing time was 60 seconds. Moreover, the post-baking process was performed on the conditions of heating temperature: 140 degreeC and heating time: 10 minutes. The formed light shielding part had a thickness of 2.0 μm.

  Next, using a droplet discharge device as shown in FIG. 5, a red colored portion forming ink is formed in a cell (region surrounded by the light shielding portion) of the substrate provided with the light shielding portion (partition wall), The green colored portion forming ink and the blue colored portion forming ink were ejected in a predetermined pattern (see (1d) in FIGS. 1 and 3). In each cell, the color filter ink was applied in such an amount that the average thickness of the colored portion to be formed was 2.0 μm.

Thereafter, the substrate to which the color filter ink was applied was subjected to a heat treatment at 80 ° C. for 20 minutes on a hot plate (first heat treatment).
Further, heat treatment was performed in an oven at 240 ° C. for 50 minutes (second heat treatment) to form a red colored portion, a green colored portion, and a blue colored portion (see (1e) in FIGS. 1 and 3). .
Next, a sheet material made of a material containing a colorant and a photosensitive resin is attached to the surface side of the substrate where the light-shielding portion, red coloring portion, green coloring portion, and blue coloring portion are provided. Thereafter, the exposure and development processes are repeated to form a cyan-purple (cyan) colored portion, a magenta-colored (magenta) colored portion, and a yellow (yellow) colored portion in this order (FIG. 1 to FIG. 1). 4 (1f) to (1k)), and then washing with N-methyl-2-pyrrolidone and γ-butyrolactone gave a color filter as shown in FIG. 2 and FIG. 4 (1k). Obtained.

This step was performed by transferring the sheet material provided on the base film onto the substrate.
Further, as a sheet material for forming a colored portion of cyan-purple (cyan), a material containing a compound represented by the following formula (44) is used as a coloring agent (dye), and a colored portion of magenta (magenta) is formed. As a sheet material for use, a colorant (dye) containing a compound represented by the following formula (45) is used. As a sheet material for forming a yellow colored portion, a colorant (dye) is used. As for, what contains the compound represented by following formula (46) was used.

The thickness of the colored portion of cyan-purple (cyan) formed in this step, the thickness of the colored portion of magenta (magenta), and the thickness of the colored portion of yellow (yellow) were all 2.0 μm. It was.
A total of 11 color filters were obtained using the same method as described above.
(Examples 2 to 10)
Except that the composition of the color filter ink used in the first colored portion forming step and the type of dye contained in the sheet material used in the second colored portion forming step are as shown in Tables 2 and 3, Eleven color filters were produced in the same manner as in Example 1.

(Comparative Example 1)
Eleven color filters were produced in the same manner as in Example 8 except that the first colored portion forming step was omitted and all the six colored portions were formed in the second colored portion forming step. In this comparative example, the red colored part, the green colored part, the blue colored part, the cyan colored part, the magenta colored part, and the yellow colored part are arranged in this order. Formed with.

(Comparative Example 2)
Eleven color filters were produced in the same manner as in Example 8 except that all the six colored portions were formed in the first colored portion forming step and the second colored portion forming step was omitted.
(Comparative Example 3)
While changing the exposure pattern in the light-shielding portion forming step and the exposure pattern in the second colored portion forming step, by omitting the first colored portion forming step, only the three colored portions are formed. Eleven color filters were produced in the same manner as in Example 8 except that the arrangement of the colored portions was changed as shown in FIG. In FIG. 10, the colored portion of cyan (purple) is indicated by C, reddish purple (magenta) is indicated by M, and yellow (yellow) is indicated by Y.

(Comparative Example 4)
While changing the exposure pattern in the light-shielding portion forming step and omitting the second colored portion forming step, only three colored portions are formed, and the arrangement of the colored portions for each color is changed as shown in FIG. Eleven color filters were manufactured in the same manner as in Example 8 except that. In FIG. 11, the red colored portion is indicated by R, the green colored portion is indicated by G, and the blue colored portion is indicated by B.

About each said Example and each comparative example, the composition of the color filter ink used at the 1st coloring part formation process, the composition of the sheet material used at the 2nd coloring part formation process, and arrangement | positioning of the coloring part of each color are represented. 2 and Table 3 collectively. In the table, C.I. I. Pigment Red 177 is “PR177”, C.I. I. Pigment Red 254 is "PR254", C.I. I. Pigment Red 177 and a pigment derivative represented by the formula (30) were mixed with “PR177D”, C.I. I. “PR254D” is a mixture of Pigment Red 254 and a pigment derivative represented by the formula (31), and a powder composed of a pigment derivative (one sulfo group in the molecule) represented by the following formula (34) is “ SPD1 ”, a powder composed of a pigment derivative represented by the following formula (35) (two sulfo groups in the molecule) was designated“ SPD2 ”, C.I. I. Pigment Green 36 is “PG36”, C.I. I. Pigment Green 58 is changed to “PG58”, C.I. I. Pigment Blue 15: 6 is changed to “PB15: 6”, C.I. I. Pigment Yellow 150 is changed to “PY150”, C.I. I. Pigment Violet 23 is “PV23”, Dispersic 111 is “D1”, Dispersic 2095 is “D2”, Dispersic P104 is “D3”, Dispersic 166 is “D4”, Dispersic 9075 is “D5”, Dispersic 2001 is “D6”, diethylene glycol monobutyl ether acetate is “S1”, 1,3-butylene glycol diacetate is “S2”, and 2- (2-methoxy-1-methylethoxy) -1-methylethyl acetate is “S3”. Bis (2-butoxyethyl) ether “S4”, ethyl octoate “S5”, diethylene glycol mononormal butyl ether “S6”, triethylene glycol mononormal butyl ether “S7”, ethyl 3-ethoxypropionate "S8", a compound having a chemical structure represented by the above formula (44) "(44)", a compound having a chemical structure represented by the above formula (45) "(45)",
The compound having the chemical structure represented by the above formula (46) is represented by “(46)”, the compound having the chemical structure represented by the following formula (47) is represented by “(47)”, and the following formula (48). The compound having the chemical structure is “(48)”, the compound having the chemical structure represented by the following formula (49) is “(49)”, a resin as a photocurable resin (trade name: YL6810, Japan Epoxy Resin (Manufactured by the company) is indicated by "PCR". In the table, the red colored portion forming ink (color filter ink) is “R ink”, the green colored portion forming ink (color filter ink) is “G ink”, and the blue colored portion is formed. "B ink" for the color ink (color filter ink), "C sheet" for the cyan colored portion forming sheet, and "M for the magenta colored portion forming sheet material. “Sheet”, “Y sheet” as a sheet material for forming yellow colored portions, “R sheet” as a sheet material for forming red colored portions, and “G sheet” as a sheet material for forming green colored portions. The blue colored portion forming sheet material is “B sheet”, the cyan colored portion forming ink (color filter ink) is “C ink”, and the magenta colored portion forming magenta colored portion. Ink (for color filter The ink) "M ink", yellow (the ink (ink for color filters for colored portion formed of yellow)) shown as "Y ink". In the tables, “parts” of content indicates parts by weight. In addition, C. used in each Example and each comparative example. I. The content of the pigment derivative represented by the formula (30) in the mixture of Pigment Red 177 and the pigment derivative represented by the formula (30) was 0.1 wt% or more and 10 wt% or less. In addition, C.I. used in each of the above examples and comparative examples. I. The content of the pigment derivative represented by the formula (31) in the mixture of Pigment Red 254 and the pigment derivative represented by the formula (31) was 0.1 wt% or more and 10 wt% or less. In addition, the viscosity at 25 ° C. of the color filter inks of each of the examples measured using a vibration viscometer in accordance with JIS Z8809 is in the range of 5 mPa · s to 11 mPa · s. Value.

[3] Evaluation of color filter The following evaluation was performed using each color filter obtained as described above.
[3.1] Evaluation of Color Reproduction Range FIG. 6 shows the same conditions using the first to tenth color filters among the eleven color filters manufactured in each of the examples and the comparative examples. Such a liquid crystal display device was manufactured. A cold cathode tube having a color temperature of 11000K was used as the light source.

  Using these liquid crystal display devices, in each of the examples and comparative examples 1 and 2 in a dark room, single color display for six colors (red single color display, green single color display, blue single color display, blue purple (cyan) ) Single color display, reddish purple (magenta) single color display, yellow (yellow) single color display), and for Comparative Example 3, three colors of single color display (indigo purple (cyan) single color display, red purple (magenta)) In the case of Comparative Example 4, single color display for three colors (red single color display, green single color display, and blue single color display) is performed, and transmission at this time is performed. The spectrum was measured, the chromaticity (R (xy), G (xy), B (xy)) by an xy display system was determined, the NTSC ratio was calculated, and evaluated according to the following five-stage criteria. It can be said that the higher the NTSC ratio, the wider the color reproduction range.

A: NTSC ratio is 78% or more.
B: NTSC ratio is 75 or more and less than 78%.
C: NTSC ratio is 72 or more and less than 75%.
D: NTSC ratio is 69 or more and less than 72%.
E: NTSC ratio is less than 69%.

[3.2] Color Unevenness, Density Unevenness Using the liquid crystal display devices of the above-described Examples and Comparative Examples manufactured in [3.1], in each of the Examples and Comparative Examples 1 and 2, 6 Single color display for colors (red single color display, green single color display, blue single color display, indigo purple (cyan) single color display, reddish purple (magenta) single color display, yellow (yellow) single color display), comparative example 3 for single color display (single color display for cyan, cyan, single color display for magenta, single color display for yellow), and for comparative example 4, single color display for three colors (Red single color display, green single color display, blue single color display) Visual observation is performed in each state, and the occurrence of color unevenness and density unevenness (including those due to light leakage) in each part is observed. The evaluation was made according to the following five-stage criteria.

A: Color unevenness and density unevenness are not recognized at all.
B: Color unevenness and density unevenness are hardly recognized.
C: Color unevenness and density unevenness are slightly recognized.
D: Color unevenness and density unevenness are clearly recognized.
E: Color unevenness and density unevenness are noticeable.

[3.3] Evaluation of contrast ratio All color display (image display in the entire pixel effective area) is performed using the liquid crystal display devices of the above-described embodiments and comparative examples manufactured in [3.2], and the luminous intensity Using a meter (manufactured by PHOTO RESEARCH, PR-800), a contrast ratio (CR) as compared with the case where color display was not performed was obtained and evaluated according to the following five-stage criteria.

A: CR is 17000 or more.
B: CR is 15000 or more and less than 17000.
C: CR is 12,000 or more and less than 15,000.
D: CR is 9000 or more and less than 12,000.
E: CR is less than 9000.

[3.4] Lightness Evaluation The liquid crystal display devices of the above-described Examples and Comparative Examples used in the evaluation of [3.3] were evaluated as shown below. For the liquid crystal display device, each color is displayed in a single color, and tristimulus values are obtained by the xyY colorimetric method using a chromaticity meter (manufactured by Minolta, CM-3700d, using C light source as the light source) as follows. Evaluation was performed.
That is, for the single color display of red, the Y value when x = 0.651 was evaluated according to the following five-step criteria.

A: Brightness Y is 21.0 or more.
B: Lightness Y is 20.5 or more and less than 21.0.
C: Brightness Y is 19.9 or more and less than 20.5.
D: Lightness Y is 18.0 or more and less than 19.9.
E: Lightness Y is less than 18.0.

In addition, for the monochrome display of green, the Y value when y = 0.600 was evaluated according to the following five-stage criteria.
A: Brightness Y is 57.0 or more.
B: The brightness Y is 55.3 or more and less than 57.0.
C: Brightness Y is 53.3 or more and less than 55.3.
D: Brightness Y is 51.0 or more and less than 53.3.
E: Lightness Y is less than 51.0.

For the blue single color display, the Y value when y = 0.141 was evaluated according to the following five-step criteria.
A: Brightness Y is 11.8 or more.
B: The brightness Y is 11.5 or more and less than 11.8.
C: Brightness Y is 10.8 or more and less than 11.5.
D: The brightness Y is 10.0 or more and less than 10.8.
E: Lightness Y is less than 10.0.

For the monochrome display of cyan-purple (cyan), the Y value when y = 0.30 was evaluated according to the following five criteria.
A: Brightness Y is 19.0 or more.
B: Brightness Y is 18.0 or more and less than 19.0.
C: Brightness Y is 17.0 or more and less than 18.0.
D: Brightness Y is 16.0 or more and less than 17.0.
E: Lightness Y is less than 16.0.

In addition, for the single color display of reddish purple (magenta), the Y value when y = 0.10 was evaluated according to the following five criteria.
A: Brightness Y is 29.0 or more.
B: Lightness Y is 28.0 or more and less than 29.0.
C: Brightness Y is 27.0 or more and less than 28.0.
D: Brightness Y is 26.0 or more and less than 27.0.
E: Lightness Y is less than 26.0.

For yellow (yellow) single color display, the Y value when y = 0.55 was evaluated according to the following five criteria.
A: Brightness Y is 75.0 or more.
B: Brightness Y is 74.0 or more and less than 75.0.
C: Brightness Y is 73.0 or more and less than 74.0.
D: Brightness Y is 72.0 or more and less than 73.0.
E: Lightness Y is less than 72.0.

[3.5] Heat cycle test The color filter was removed from the liquid crystal display devices of the respective Examples and Comparative Examples used in the evaluation of [3.4].
Each removed color filter is placed in a 20 ° C. environment for 1.5 hours, then in a 65 ° C. environment for 2.5 hours, then in a 20 ° C. environment for 1.5 hours, and then at −10 ° C. It was left in the environment for 2.5 hours. Thereafter, the environmental temperature was returned again to 20 ° C., which was set as one cycle (8 hours), and this cycle was repeated a total of 10 times (total of 80 hours).

Thereafter, a liquid crystal display device as shown in FIG. 6 was again assembled using these color filters.
Using these liquid crystal display devices, visual observation is performed in a dark room with red single color display, green single color display, and blue single color display, and the occurrence of light leakage (white spots, bright spots) is observed. The evaluation was made according to the following 6-step criteria.

A: There is no color filter in which light leakage (white spots, bright spots) occurs.
B: Light leakage (white spots, bright spots) is observed in one or two color filters.
C: Light leakage (white spots, bright spots) is observed in 3 to 4 color filters.
D: Light leakage (white spots, bright spots) is observed in 5 to 7 color filters.
E: Light leakage (white spots, bright spots) is observed in 8 to 9 color filters.
F: Light leakage (white spots, bright spots) is observed in 10 color filters.

[3.6] Cross-cut test Of the 11 color filters manufactured in each of the above Examples and Comparative Examples, each of the 11th color filters is near the center of the surface on which the colored portion is provided. In addition, 11 vertical and horizontal cuts perpendicular to each other with a cutter were made at 1 mm intervals. Furthermore, the cellophane tape was lightly adhered to the pattern with a finger, the tape was quickly peeled off, the state of the wound was observed, and the evaluation was made according to the following six-stage criteria.

A: There is slight peeling at the intersection line of the cuts, and the area of the defect is less than 5% of the total square area.
B: There is peeling at the intersection line of the cuts, and the area of the missing part is 5% or more and less than 17% of the total square area.
C: The width of peeling due to the cut is wide, and the area of the defect is 17% or more and less than 30% of the total square area.
D: The width of the peeling due to the cut is wide, and the area of the defect is 30% or more and less than 45% of the total square area.
E: The width of peeling due to the cut is wider than 4 points, and the area of the missing part is 45% or more and less than 67% of the total square area.
F: The area of peeling is 67% or more of the total square area.
These results are shown in Table 4.

As is clear from Table 4, the present invention yielded excellent results, while the comparative example did not yield satisfactory results.
In the present invention, the productivity of the color filter could be made sufficiently excellent, whereas in Comparative Example 1, the productivity of the color filter was inferior.
In addition, each of the inks used in the present invention was excellent in droplet ejection stability and long-term storage stability, and a more stable color filter could be produced over a long period of time. In particular, the inks used in Examples 1 to 4 and Example 10 (in particular, the inks used in Examples 1 to 3) were very excellent in droplet ejection stability and long-term storage stability.
Further, when a commercially available liquid crystal television was disassembled and the liquid crystal display device part was replaced with one manufactured as described above, and the same evaluation as described above was performed, the same result as above was obtained.

  DESCRIPTION OF SYMBOLS 1 ... Color filter 11 ... Board | substrate 12, 12A, 12B, 12C, 12D, 12E, 12F ... Colored part 12A ', 12B', 12C '... Sheet material 13 ... Light-shielding part (partition wall) 14 ... Cell 2 ... Color filter ink DESCRIPTION OF SYMBOLS 3 ... Coating film 60 ... Liquid crystal display device 61 ... Common electrode 62 ... Liquid crystal layer 63, 64 ... Orientation film 65 ... Pixel electrode 66 ... Substrate (opposite substrate) 67, 68 ... Polarizing plate 100 ... Droplet discharge device 101 ... Tank 102 DESCRIPTION OF SYMBOLS ... Discharge scanning part 103 ... Droplet discharge means 104 ... 1st position control apparatus (moving means) 106 ... Stage 108 ... 2nd position control apparatus (moving means) 110 ... Tube 112 ... Control means 1000 ... Image display apparatus 1100 ... Personal Computer 1102 ... Keyboard 1104 ... Main body 1106 ... Display unit 1200 ... Mobile Band telephone 1202 ... operation button 1204 ... earpiece 1206 ... mouthpiece 1300 ... digital still camera 1302 ... case (body) 1304 ... light receiving unit 1306 ... shutter button 1308 ... circuit board 1312 ... video signal output terminal 1314 ... for data communication Input / output terminal 1430 ... TV monitor 1440 ... Personal computer

Claims (9)

A method for producing a color filter having a plurality of colored portions,
A substrate preparation process for preparing a substrate;
A light shielding part forming step of forming a light shielding part on the substrate;
A first colored portion forming step of applying ink on the substrate by an ink jet method to form a red colored portion, a green colored portion, and a blue colored portion;
On the substrate, a sheet material composed of a material containing a colorant and a photosensitive resin is attached, and then exposed and developed, so that a cyan colored portion and a reddish purple (magenta) A second colored portion forming step of forming a colored portion and a yellow (yellow) colored portion,
The ink used for forming the red colored portion is C.I. I. Pigment red 177, C.I. I. Pigment Red 254 and at least one of these derivatives,
The ink used for forming the green colored portion is C.I. I. Pigment green 36 and / or C.I. I. Including CI Pigment Green 58,
The ink used for forming the blue colored portion is C.I. I. Pigment blue 15: 6 is included, The manufacturing method of the color filter characterized by the above-mentioned.   The method for producing a color filter according to claim 1, wherein the sheet material contains a dye. The ink used in the first colored portion forming step includes, as a resin material, a monomer component m1 represented by the following formula (1), a monomer component m2 having a carboxyl group or an acid anhydride group, and the following formula: The method for producing a color filter according to claim 1 or 2, comprising a polymer M containing the monomer component m3 represented by (3).

As the resin material, the ink used in the first colored portion forming step is a monomer component x1 represented by the following formula (11), a monomer component x3 represented by the following formula (13), and the following formula. The method for producing a color filter according to any one of claims 1 to 3, comprising a polymer X containing the monomer component x4 represented by (14).

The said ink used at a said 1st coloring part formation process contains the polymer Y containing the monomer component y1 represented by following formula (15) as a resin material. Manufacturing method of color filter.

As the resin material, the ink used in the first colored portion forming step is a monomer component z1 represented by the following formula (21), a monomer component z2 represented by the following formula (22), and the following formula. Polymer Z containing monomer component z3 represented by (23), monomer component w1 represented by formula (25) below, monomer component w2 represented by formula (26) below, and Any one of the polymers W containing the monomer component w3 represented by Formula (27) and the monomer component w4 represented by following formula (28) is included. The manufacturing method of the color filter as described in 2.

  A color filter manufactured using the method according to claim 1.   An image display device comprising the color filter according to claim 7.   An electronic apparatus comprising the image display device according to claim 8.

Images