JP2011191362A - Method for manufacturing color filter, color filter, image display device, and electronic equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for manufacturing a color filter by which the color filter prevented from the occurrence of a bright spot and capable of displaying a high picture quality image is manufactured with sufficient productivity, to provide the color filter and to provide an image display device and an electronic equipment provided with the color filter. <P>SOLUTION: The method for manufacturing the color filter has: a substrate preparing step of preparing a substrate; a color part forming step of forming a color part by pasting a material containing a coloring agent and a photosensitive resin on a sheet material before exposing and developing; a detecting step of detecting a defective part where the color part is to be formed in the color part forming step, but the desired color part is not formed; and a defective repairing step of applying ink on the defective part detected in the detecting step by an ink jet method. <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.

In general, a liquid crystal display device (LCD) or the like that performs color display uses a color filter including a coloring portion for coloring transmitted light into a predetermined color.
For color filters, conventionally, a composition (colored layer forming composition) containing a colorant, a photosensitive resin, a functional monomer, a polymerization initiator and the like is applied onto a substrate, and then irradiated with light through a photomask. It has been manufactured using a so-called photolithography method that performs a photosensitive process (exposure process), a development process, and the like (see, for example, Patent Document 1).

  In such a method, a colored portion may not be formed at a site where a colored portion is to be formed due to poor exposure or the like. In such a case, in an image displayed using a color filter, light that is not colored by the colored portion is directly observed as a bright spot, which has a large adverse effect on image quality. Further, by forming the light-shielding portion at the site where the color-forming portion is to be formed, there is a case in which a bright spot does not appear in the display image. In particular, the degree of the influence of the above-described defects on the entire display image has increased with the recent increase in the image quality of the display image and the increase in the display area.

JP 2000-235112 A

  An object of the present invention is to provide a color filter manufacturing method capable of manufacturing a color filter capable of displaying a high-quality image in which generation of a bright spot is prevented, with high productivity. It is another object of the present invention to provide an image display device and an electronic apparatus that include the color filter.

Such an object is achieved by the present invention described below.
The color filter manufacturing method of the present invention includes a substrate preparation step of preparing a substrate,
A colored part forming step of forming a colored part by sticking a sheet material composed of a material containing a colorant and a photosensitive resin on the substrate, and then exposing and developing.
A detection step of detecting a defective portion where a colored portion is to be formed in the colored portion forming step, and a desired colored portion is not formed;
And a defect repairing step of repairing the defect by applying ink to the defective part detected in the detection step by an ink jet method.
Accordingly, it is possible to provide a color filter manufacturing method capable of manufacturing a color filter that can prevent the generation of bright spots and display a high-quality image with high productivity.

In the method for producing a color filter of the present invention, the colored portion forming step uses a plurality of different types of sheet materials, and repeats the processes of sticking, coating, and developing to form the colored portions of a plurality of colors. It is preferable that
Thereby, the color reproduction range of the image displayed using a color filter can be widened. In addition, by using a plurality of types of sheet material and repeatedly forming, coloring, and developing by repeatedly applying, coating, and developing, generally, the sheet material overlaps (with the previously formed colored portion and (Since it overlaps with the pasted sheet material), due to the decrease in adhesion of the sheet material to the substrate, it is easy to produce a defective part, but by applying the present invention, the occurrence of the above problems is ensured Can be prevented. That is, the effect of the present invention is more remarkably exhibited by forming colored portions of a plurality of colors using a plurality of types of sheet materials.
In the color filter manufacturing method of the present invention, it is preferable to further include a light shielding part forming step of forming a light shielding part between the colored part forming step and the defect repairing step.
Thereby, the contrast of the image displayed using a color filter can be made particularly excellent.

In the method for producing a color filter of the present invention, the light shielding portion forming step is performed between the colored portion forming step and the detecting step,
The defect repairing step is preferably performed after removing the light shielding portion provided at the defective portion.
Thereby, it is possible to easily detect a defective part in the detection step, and to further increase the detection accuracy.

In the color filter manufacturing method of the present invention, it is preferable to remove the light-shielding portion provided at the defect site by laser light irradiation.
This makes it possible to selectively and reliably remove the light-shielding part at the desired part (the light-shielding part provided at the defective part), and the image quality displayed using the finally obtained color filter is particularly excellent. Can be.

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

  As a result, the ejection stability of the ink used in the defect repair process, the storage stability of the ink, etc. can be made particularly excellent, and a color filter can be manufactured stably over a long period of time. The productivity of the 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 defect repairing step is a monomer component x1 represented by the following formula (11) and a single quantity represented by the following formula (13) as a resin material. It is preferable that it contains the polymer X containing the body component x3 and the monomer component x4 represented by following formula (14).

As a result, it is possible to more reliably prevent the occurrence of color unevenness and the decrease in contrast at each part of the manufactured color filter, and the durability and reliability of the color filter can be made particularly excellent. .

これにより、欠陥補修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, it is preferable that the ink used in the defect repairing step includes a polymer Y containing a monomer component y1 represented by the following formula (15) as a resin material.

Thereby, while making the ejection stability of the ink used in the defect repairing process excellent, the adhesion of the colored portion formed using the ink to the substrate can be made particularly excellent. Durability and reliability can be made particularly excellent.

The color filter of the present invention is manufactured using the method of the present invention.
As a result, it is possible to provide a color filter that can prevent the generation of bright spots and display a high-quality image.
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 device that can stably display a high-quality image in which generation of bright spots is prevented 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 apparatus that can stably display a high-quality image in which generation of bright spots is prevented 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 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.

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 cross-sectional views showing a preferred embodiment of the method for producing a color filter of the present invention, and FIG. 3 is a perspective view showing a droplet discharge device used for producing the color filter.

  In the color filter manufacturing method of the present embodiment, a substrate preparation step (1a) for preparing the substrate 11 and a sheet material 12 ′ made of a material containing a colorant and a photosensitive resin are stuck on the substrate 11. Then, by performing exposure and development, a colored portion forming step (1b to 1g) for forming a plurality of colored portions 12, a light shielding portion forming step (1h, 1i) for forming the light shielding portion 13, and a colored portion Provided in a detection step (1j) for detecting a defective portion 19 where the colored portion 12 is to be formed in the forming step and where the desired colored portion 12 is not formed, and in the defective portion 19 detected in the detecting step A light-shielding part removing step (1k) for selectively removing the light-shielding part 13 and a defect repairing step (1l, 1m) for repairing the defect by applying ink to the defect site 19 detected in the detection process by an ink jet method. ). Thus, by having the detection step and the defect repair step, defects that occur only in the colored portion formation step can be repaired, and in the image displayed using the obtained color filter, generation of bright spots, etc. Can be reliably prevented, and a high-quality image can be displayed. In addition, the color filter can be manufactured with high productivity.

<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) 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.

<Colored part forming step>
Next, a sheet material made of a material containing a colorant and a photosensitive resin is stuck on the substrate 11, and then exposed and developed, whereby a red colored portion 12A is formed as a colored portion of a plurality of colors. The green colored portion 12B and the blue colored portion 12C are formed (1b to 1g).
More specifically, in this step, a process (1b) for sticking the sheet material 12A ′ for forming the red colored portion 12A, a process (1c) for exposing the sheet material 12A ′ with a predetermined pattern, and further developing the sheet material (1c). ), A process (1d) for sticking the sheet material 12B ′ for forming the green colored portion 12B, a process (1e) for exposing the sheet material 12B ′ with a predetermined pattern, and further developing (1e), and a blue coloration A process (1f) for sticking the sheet material 12C ′ for forming the part 12C and a process (1g) for exposing the sheet material 12C ′ in a predetermined pattern and further developing the sheet material 12C ′ are performed.

  In this manner, in the colored portion forming step, by using a plurality of different kinds of sheet materials 12 ′ (12A ′, 12B ′, 12C ′), a plurality of colored portions 12 (12A, 12B, 12C) are formed. The color reproduction range of the image displayed using the color filter can be widened. In addition, by using a plurality of types of sheet material and repeatedly forming, coloring, and developing by repeatedly applying, coating, and developing, generally, the sheet material overlaps (with the previously formed colored portion and Due to a decrease in the adhesion of the sheet material to the substrate due to a subsequent decrease in the adhesion of the sheet material, the image quality of the image displayed using the color filter is reduced (such as generation of bright spots). However, by applying the present invention, it is possible to reliably prevent the occurrence of the above problems. That is, the effect of the present invention is more remarkably exhibited by forming colored portions of a plurality of colors using a plurality of types of sheet materials.

In contrast to the conventional photolithographic method, a liquid photosensitive material is applied to form a coating film, whereas in the colored portion forming step of the present invention, the colored portions (12A, 12B, 12C) are formed. A sheet material is used. 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 this step, the sheet material (12A ′, 12B ′, 12C ′) may be attached to the substrate 11 by any method, but the sheet material (12A ′, 12B ′, 12C ′) 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 12A ′ has 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.
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.

  In addition to the colorant as described above, for example, Pigment Yellow 1, 3, 12, 13, 14, 15, 16, 17, 20, 24, 31, 34, 35, 35: 1 , 37, 37: 1, 42, 43, 53, 55, 60, 61, 65, 71, 73, 74, 81, 83, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108 109, 110, 113, 114, 116, 117, 119, 120, 126, 127, 128, 129, 138, 139, 150, 151, 152, 153, 154, 155, 156, 157, 166, 168, 175 , 180, 184, 185 and the like. Thereby, the color tone of 12 A of coloring parts formed can be adjusted more suitably. Among these, pigment yellow 138, 139, 150, 184, and 185 are preferable, and pigment yellow 150 is more preferable. Thereby, the effect mentioned above is exhibited more notably.

Further, the sheet material 12B ′ has C.I. I. Pigment green 36 and / or C.I. I. Pigment Green 58 is preferable, and C.I. I. More preferably, CI Pigment Green 58 is included. Thereby, the coloring property of the colored part 12B can be made particularly excellent.
Further, the sheet material 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 sheet material 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.

In addition to the colorant as described above, for example, Pigment Yellow 1, 3, 12, 13, 14, 15, 16, 17, 20, 24, 31, 34, 35, 35: 1 , 37, 37: 1, 42, 43, 53, 55, 60, 61, 65, 71, 73, 74, 81, 83, 93, 94, 95, 97, 98, 100, 101, 104, 106, 108 109, 110, 113, 114, 116, 117, 119, 120, 126, 127, 128, 129, 138, 139, 150, 151, 152, 153, 154, 155, 156, 157, 166, 168, 175 , 180, 184, 185 and the like. Thereby, the color tone of the colored part 12B formed can be adjusted more suitably. Among these, pigment yellow 138, 139, 150, 184, and 185 are preferable, and pigment yellow 150 is more preferable. Thereby, the effect mentioned above is exhibited more notably.
Further, the sheet material 12C ′ has 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.

<Light shielding part forming step>
Next, the light shielding part 13 is formed (1h, 1i).
Thus, in the present embodiment, the light shielding part forming step for forming the light shielding part 13 is provided between the above-described colored part forming step and the defect repairing step described later. Thereby, the contrast of the image displayed using a color filter can be made particularly excellent. In particular, by forming the light-shielding part 13 before the defect repairing process described later, the ink (color filter ink) used in the process in the defect repairing process is the colored part 12 ( The thickness uniformity of the colored portions 12 can be made high while effectively preventing the colored portions 12) having no defects from adhering to the upper surface or the like.
In particular, in the present embodiment, a light shielding portion forming step is provided between the above-described colored portion forming step and a detection step described later. Thereby, the defect site | part 19 can be easily detected in the detection process mentioned later, and the detection accuracy of the defect site | part 19 can be made higher.

  In the present embodiment, the light shielding part forming step is performed by a photolithography method using a liquid composition. Thereby, the productivity of the color filter 1 can be made particularly excellent, and the adhesion of the colored portion 12 and the light shielding portion 13 of each color to the substrate 11 can be made particularly excellent. The durability can be made particularly excellent.

  In this step, first, the radiation-sensitive composition for forming the light shielding part is applied to almost the entire surface of the substrate 11 on which the colored part 12 is provided, thereby forming the coating film 3 (1h). 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.

Thereafter, radiation exposure is performed through a photomask to perform post-exposure baking (PEB), and further, development using an alkali developer is performed to form the light shielding portion 13 (1i). . 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.

In the case where the defective portion 19 is generated in the colored portion forming step described above, in this step, in addition to the portion where the light shielding portion 13 is to be formed in the color filter 1 finally obtained, the light shielding portion 13 is also formed in the defective portion 19. Is formed.
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 treatment, only the bank surface (upper surface in the figure, the portion excluding the inner wall surface) is made liquid repellent, and ink (color filter ink) used in the subsequent defect repairing process is applied to the surface of the bank surface. It can prevent more effectively that it gets on, and contributes to the flattening of the surface of the colored portion 12 formed by repair. 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.

<Detection process>
Next, the defective part 19 where the colored part 12 should have been formed in the colored part forming process and where the desired colored part 12 is not formed is detected (1j).
In this step, the presence / absence of the defective part 19 is detected by detecting the color and color density of each part where the colored portion 12 is to be formed, and when the defective part 19 exists, the position of the defective part 19 is detected. Find the coordinates. Thereby, the defect site | part 19 can be repaired appropriately in the defect repair process mentioned later.

In particular, in the present embodiment, since the light shielding part forming step is performed prior to this process, when the defective part 19 exists, the light shielding part 13 is also formed in the part. Thereby, compared with the case where a detection process is performed in the state in which the light-shielding part 13 is not formed in the defect part 19, the defect part 19 can be detected easily and the detection accuracy of the defect part 19 is higher. can do.
The defect site 19 may be detected by any method. In the present embodiment, the defect site 19 is detected using the CCD camera 50. Thereby, the detection accuracy of the defective part 19 can be made higher.

<Light shielding part removing step>
Next, the light-shielding part 13 provided in the defect site 19 detected in the detection process is selectively removed (1k).
The removal of the light shielding portion 13 provided in the defective portion 19 may be performed by any method, but is preferably performed by laser light irradiation. As a result, the light-shielding portion 13 (the light-shielding portion 13 provided in the defective portion 19) at a desired portion can be selectively removed reliably, and an image displayed using the color filter 1 finally obtained can be obtained. The image quality can be made particularly excellent.
In addition, when the defect site | part 19 is not detected at a detection process, the removal of the light-shielding part 13 is not performed at this process.

<Defect repair process>
Next, the color filter ink (ink) 2 is applied to the defective part 19 detected in the detection step (the defective part 19 from which the light-shielding portion 13 is removed) by an ink jet method to repair the defect (1l, 1m). . The ink used in this step will be described in detail later, and is composed of a colorant, a liquid medium in which the colorant is dissolved and / or dispersed, and a material including a resin material.
When the defective part 19 is not detected in the detection process, the repair with the color filter ink (ink) 2 may not be performed in this process.

In this step, first, the color filter ink 2 is applied to the defective portion 19 (in the cell surrounded by the light shielding portion 13) by an inkjet method (1l).
The color filter ink 2 is discharged by using a droplet discharge device as shown in FIG.
As shown in FIG. 3, 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 (hereinafter also simply referred to as “substrate 11”) provided with the coloring portion 12 and the light shielding portion 13, and 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 defective portion 19 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 data (ejection data representing a relative position or the like at which the color filter ink 2 should be ejected) obtained from the detection step from an external information processing apparatus.

Using the droplet discharge device 100 as described above, the color filter ink 2 corresponding to the colored portion 12 (12A, 12B, 12C) that should have been formed in the defective portion 19 in the colored portion forming step described above. To the defective part 19. By using the apparatus as described above, the color filter ink 2 can be efficiently and selectively applied to the defect site 19. In the configuration shown in the figure, 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 are formed (repaired) in this step. ) The number of types of colored portions 12 to be provided may be included. 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 liquid medium is removed from the color filter ink 2 applied to the defective portion 19 and the curable resin is cured (curing treatment) to obtain a solid colored portion 12 (1k). Thereby, the color filter 1 is obtained.
Removal of the liquid medium and curing of the curable resin are usually performed by heating. Thereby, the adhesiveness with respect to the board | substrate 11 of the coloring part 12 formed by repair can be made especially excellent. Further, it is possible to reliably prevent the liquid medium of the color filter ink 2 from remaining in the colored portion 12 formed by the repair. 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 liquid 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 the liquid medium remains in the colored portion 12 formed by repair, etc. Can be effectively 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 colored portion 12 formed by repair can be made higher.
In such a case, by heating the substrate 11 at a relatively low temperature in the first heat treatment, the liquid 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 in a state in which the surface is 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 liquid 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. Accordingly, the liquid 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 liquid 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 liquid medium can be removed more efficiently, or the shape of the colored portion 12 formed by repairing Even when the heating temperature is relatively low, the liquid medium can be reliably removed, and adverse effects on the substrate 11, the colored portion 12 and the like can be prevented. The effect that generation | occurrence | production is prevented more reliably is acquired. Moreover, the colored part 12 by repair can be more efficiently formed by using heat processing and pressure reduction processing together.

  Thereafter, cleaning with a cleaning liquid such as N-methyl-2-pyrrolidone or γ-butyrolactone and chemicals is performed. Thereby, even when the solid content of the ink used in this step is adhered to the surface of the colored portion formed in the colored portion forming step, the solid content can be easily and reliably removed and obtained. It is possible to reliably prevent an adverse effect on the display image of the color filter.

  As described above, the manufacturing method of the present invention has a detection step and a defect repair step after a colored portion forming step using exposure and development, thereby repairing a defect that occurs only in the colored portion forming step. In the image displayed using the obtained color filter, it is possible to reliably prevent the occurrence of bright spots and the like and display a high-quality image. In addition, the color filter can be manufactured with high productivity. On the other hand, when a method that does not have a detection step and a defect repair step is used, it becomes difficult to reliably prevent the occurrence of bright spots in an image displayed using a color filter, and stably. A high-quality image cannot be displayed. In addition, it may be possible to form a colored portion only by an ink jet method without using exposure and development processing, but in such a method, the productivity of the color filter is significantly inferior to the present invention. It becomes.

<About color filter ink>
Next, the ink (color filter ink) 2 used in the defect repairing process will be described in detail.
The color filter ink 2 includes a colorant, a liquid medium having a function of dissolving and / or dispersing the colorant, a resin material, and the like.

[Colorant]
As the colorant, for example, various pigments and various dyes can be used, but it is preferable to use the same colorant as the colorant contained in the sheet material 12 ′ used in the above-described colored portion forming step. It is more preferable to use a colorant having the following composition. Thereby, the characteristic difference between the colored portion 12 formed in the colored portion forming step and the colored portion 12 formed in the defect repairing step can be made smaller, and an image displayed using the color filter 1 Image quality can be improved.

  The content of the colorant 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 colorant is within the above range, the amount of the color filter ink 2 required for forming the colored portion 12 having a predetermined color density can be reduced, which is advantageous from the viewpoint of resource saving. is there. Moreover, since the amount of volatilization of the liquid medium when forming the colored portion 12 of the color filter can be suppressed, the burden on the environment can be reduced.

[Liquid medium]
The liquid medium (liquid medium) has a function of dissolving and / or dispersing the colorant as described above. That is, the liquid medium functions as a solvent and / or a dispersion medium. In general, most of the liquid medium is removed in the process of manufacturing the color filter 1.

  As the liquid 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, Ethers (polyhydric alcohol ethers) as condensates of glycerin, etc., alkyl ethers of polyhydric alcohols or polyhydric alcohol ethers (eg, methyl ether, ethyl ether, butyl ether, hexyl ether, etc.), 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 The 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 liquid medium in the color filter ink 2 (when a plurality of compounds are included as the liquid medium, the total of these contents) is preferably 50 wt% or more and 98 wt% or less, and 60 wt%. % To 95 wt%, more preferably 65 wt% to 93 wt%. When the content of the liquid medium is a value within the above range, the color filter 1 to be manufactured has excellent durability while the discharge property of the color filter ink 2 from the droplet discharge head is particularly excellent. Can be.

[Resin material]
The color filter ink 2 contains a resin material (binder resin) for the purpose of improving the adhesion of the colored portion 12 formed by repair to the substrate 11.
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 2 and the storage stability of the color filter ink 2 can be made particularly excellent. 1 can be manufactured, and as a result, the productivity of the color filter 1 can be made particularly excellent. In addition, the uniformity of characteristics among the individual color filters 1 to be manufactured can be made particularly excellent. In addition, the colored portion 12 formed using the color filter ink 2 is particularly excellent in flatness, and can prevent a decrease in contrast ratio, brightness, and the like of the manufactured color filter. Further, the durability of the color filter 1 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. In addition, since the polymer M is very excellent in affinity and compatibility with the resin components (polymer X and polymer Y) described later, even if it contains a plurality of types of resin components, the color filter In addition, the resin material can be prevented from being unintentionally deposited in the ink 1 and droplets can be ejected with excellent ejection stability. Thus, it is possible to reliably prevent problems such as a decrease in transparency due to unintentional phase separation. In addition, the long-term storage stability of the color filter ink 2 (the life of the color filter ink 2) is extremely excellent, and the occurrence of problems such as deterioration in quality due to the mass production of the color filter ink 2 is effective. Since the replacement frequency of the color filter ink 2 can be reduced when the color filter 1 is manufactured, the productivity of the color filter 1 and the reliability of the manufactured color filter 1 can be improved. it can.
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 containing such a monomer component m1 as a monomer component in the polymer M, an unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink 2 or droplet ejection. In the curing treatment performed in a heating environment, the curing reaction (polymerization reaction) of the resin material can be suitably progressed while reliably preventing the above. 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 component m1 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, the wetting and spreading of the color filter ink 2 onto the substrate 11 can be improved, and bubbles are mixed in. And the like, and the colored portion 12 having excellent adhesion to the substrate 11 can be suitably formed. In addition, by including the monomer component m2 as a monomer component, the long-term storage stability of the color filter ink 2 can be made particularly excellent.

  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 2 may contain a plurality of monomer components m3 represented by the general formula (3) in the molecule.

  By including such a monomer component m3 as a monomer component in the polymer M, the flatness of the colored portion 12 formed using the color filter ink 2 can be increased. Further, by containing the monomer component m3 as a monomer component in the polymer M, the ejection stability of the color filter ink 2 can be improved. 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 2 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 2 is excellent even when the liquid medium constituting the color filter ink 2 is highly hydrophilic. The transparency of the colored portion 12 formed using the color filter ink 2 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 2 can be made particularly excellent. In addition, the colored portion 12 formed using the color filter ink 2 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 11. It is particularly excellent, and 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 2 can be made particularly excellent. Moreover, the hardening reaction of the resin material at the time of formation of the coloring part 12 in a defect repair process 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.
When the polymer M contains the monomer component m7, the hardness of the colored portion 12 formed using the color filter ink 2 and the adhesion to the substrate 11 can be further improved.

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 2 includes the monomer component m7 as described above, a 3- to 5-membered cyclic ether group (oxirane ring (epoxy group), oxetane ring (oxetanyl group), The oxolane 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 1 produced using the color filter ink 2 can be made particularly excellent, and the durability of the color filter 1 can be made particularly excellent. it can. Further, the storage stability (long-term stability), ejection stability, hardness of the colored portion 12 to be formed, and the like of the color filter ink 2 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 ink 2 color filter is preferably not more than 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 2 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 resistance of the colored portion 12 formed using the color filter ink 2 while sufficiently improving the switching characteristics of the curing reaction as the entire resin material, etc. Can be made particularly excellent, and the flatness of the surface of the colored portion 12 to be formed can be made particularly high. As a result, it is possible to more reliably prevent the occurrence of color unevenness at each part of the color filter 1 and the decrease in contrast, and the durability and reliability of the color filter 1 can be made particularly excellent. Further, by including the polymer X, the affinity and compatibility of each polymer component in the color filter ink 2 (particularly, the affinity and compatibility of the polymer X with the polymer M and polymer Y). The color filter ink 2 is made excellent in the discharge stability of the color filter ink 2 while fully exhibiting the features of the polymer X, and is formed using the color filter ink 2. The transparency of the colored portion 12 is 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 during storage of the color filter ink 2 or droplet discharge can be reliably prevented. On the other hand, in the curing treatment performed in a heating environment, the curing reaction (polymerization reaction) of the resin material can be more suitably advanced. 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 2 can be improved. Further, by containing the monomer component x1 as a monomer component, the hardness of the colored portion 12 formed using the color filter ink 2 can be made excellent.

  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 the color filter 1 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 (in particular, together with the monomer component x1 described above and the monomer component x3 described in detail later), the color filter ink 2 Resin material curing reaction (polymerization reaction) during the heating environment while preventing unintentional reaction (polymerization reaction) of the resin material during storage and droplet discharge, etc. is more suitable. Can be 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. Further, by including the monomer component x2 as a monomer component, the hardness of the colored portion 12 formed using the color filter ink 2 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. Further, the reactivity of the polymer X at a relatively low temperature increases, and the storage stability of the color filter ink 2 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 and solvent resistance of the colored portion 12 formed using the color filter ink 2 are particularly excellent. be able to. 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. For this reason, in the curing process performed in a heating environment while reliably preventing unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink 2 or droplet discharge, the resin material is cured. The reaction (polymerization reaction) can be suitably progressed.
In addition, by including the monomer component x3 as the monomer component, for example, the long-term storage stability and ejection stability of the color filter ink 2 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. Moreover, the coloring part 12 formed using the ink 2 for color filters becomes too hard, and the tendency for the followability with respect to deformation | transformation of the board | substrate 11 etc. accompanying a temperature change to appear 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, when the liquid medium is removed from the color filter ink 2 applied on the substrate 11, the color increases as the solid concentration increases. The thixotropic property and viscosity of the filter ink 2 are increased, and it is possible to more reliably prevent unintended irregularities from occurring on the surface of the colored portion 12 to be formed.

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 resin material is cured in a curing process performed in a heated environment while reliably preventing unintentional reaction (polymerization reaction) of the resin material during storage of the color filter ink 2 or droplet discharge. The reaction (polymerization reaction) can proceed more suitably.
In addition, by including the monomer component x4 as the monomer component, for example, the long-term storage stability and ejection stability of the color filter ink 2 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 12 formed using the ink 2 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. Thereby, the temporal stability (long-term storage stability) of the color filter ink 2 and the ejection stability of the color filter ink 2 can be made particularly excellent, and the productivity of the color filter 1 is sufficiently excellent. Furthermore, the flatness of the colored portion 12 formed using the color filter ink 2 can be made more reliable, and the occurrence of color unevenness or the like in the image displayed using the color filter Can be prevented more effectively.
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 adhesiveness of the colored portion 12 formed using the color filter ink 2 to the substrate 11 is particularly improved while the discharge stability of the color filter ink 2 is excellent. It can be made excellent, and the durability and reliability of the manufactured color filter 1 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 colored portion 12 formed using the color filter ink 2 to the substrate 11 can be made particularly excellent. As a result, the durability of the color filter 1 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. Further, when the liquid medium is removed from the color filter ink 2 applied on the substrate 11, the viscosity of the color filter ink 2 tends to increase with an increase in the solid content concentration, and the coloring formed. Involuntary unevenness is likely to occur on the surface of the portion 12. 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), the resin at the time of storage of the color filter ink 2 or at the time of droplet discharge is used. In the curing treatment performed in a heated environment, the resin material curing reaction (polymerization reaction) can be suitably advanced while more reliably preventing unintentional reaction (polymerization reaction) of the material. 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 y2 as a monomer component, the hardness of the colored portion 12 formed using the color filter ink 2 can be made excellent.

Further, when the polymer Y contains the monomer component y2, the affinity and compatibility with the above-described resin components (polymer M and polymer X) can be sufficiently improved. As a result, even when the color filter ink 2 contains a resin component other than the polymer Y, the discharge stability of the color filter ink 12 can be improved, and the color filter ink 2 The colored portion 12 formed using the material 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 11, and is less prone to problems such as cracks. Become. On the other hand, if the monomer component y2 is not included as a monomer component, when other resin components (polymer M, polymer X) are included, the affinity and compatibility with the other resin components are increased. It becomes difficult to make it sufficiently excellent, and the color filter ink 2 is inferior in ejection stability, and the produced color filter 1 is liable to cause uneven color, contrast, and durability. Therefore, it may be difficult to make reliability and the like 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 based on 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. Further, the reactivity of the polymer Y at a relatively low temperature increases, and the storage stability of the color filter ink 2 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. Thereby, the temporal stability (long-term storage stability) of the color filter ink 2 and the ejection stability of the color filter ink 2 can be made particularly excellent, and the productivity of the color filter 1 is sufficiently excellent. Furthermore, the flatness of the colored portion 12 formed using the color filter ink 2 can be made more reliable, and color unevenness in an image displayed using the color filter 1 can be improved. Generation | occurrence | production can be prevented more effectively.
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.

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 resin material content in the color filter ink 2 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. More preferably, it is 12 wt% or less.

Further, when the color filter ink 2 contains a pigment as a colorant, the content of the resin material in the color filter ink 2 is C _R [wt%], and the content of the pigment in the color filter ink is C _P When [wt%] is satisfied, it is preferable to satisfy the relationship of 0.2 ≦ C _R / C _P ≦ 9.0, and to satisfy the relationship of 0.3 ≦ C _R / C _P ≦ 5.0. More preferably, it is more preferable that the relationship of 0.4 ≦ C _R / C _P ≦ 3.5 is satisfied. By satisfying such a relationship, the contrast and the like of the manufactured color filter 1 can be further improved.
The resin material constituting the color filter ink may contain a polymer other than those described above.

[Other ingredients]
The color filter ink 2 may contain components other than those described 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 dispersants, and light emitting materials. , Leveling agents, antioxidants, ultraviolet absorbers, adhesion improvers, various polymerization accelerators, various light stabilizers, ceramics such as glass, zirconia, alumina, titanium oxide, adhesion promoters, ultraviolet absorbers, aggregation prevention An agent or the like can be used.

  The leveling agent smoothes the surface of the color filter ink 2 applied to the defect site 19 by reducing the surface tension of the color filter ink 2, and the colored portion 12 formed using the color filter ink 2. Is flattened. For this reason, since the color filter ink 2 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 2 in the defective portion 19 is made flatter. Can do. For this reason, the colored portion 12 formed using the color filter ink 2 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 portion 12 formed using the color filter ink 2 is further flattened, and a decrease in contrast or the like in a display image using the color filter 1 can be prevented more reliably.

The antioxidant prevents deterioration of the color filter ink 2 due to oxidation or the like, and prevents deterioration of the colorant or resin material due to heat, light, or the like in the colored portion 12 formed by the color filter ink 2. be able to.
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 preferably effectively prevents the color filter ink 2 and the colored portion 12 from being deteriorated, and affects the optical characteristics such as color, brightness, and contrast ratio in the formed colored portion 12. It is difficult.

  The viscosity at 25 ° C. of the color filter ink 2 (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. More preferably, it is s or less. When the viscosity of the color filter ink 2 is a value within the above range, in the droplet discharge by the inkjet method, the variation in the appropriate amount of the color filter ink 2 to be discharged is particularly small, The occurrence of clogging and the like can be prevented more reliably. The measurement of the viscosity of the color filter ink 2 can be performed using, for example, a vibration viscometer, and can be performed in particular according to JIS Z8809.

"Color filter"
Next, the color filter of the present invention will be described.
The color filter of the present invention is manufactured using the method as described above.
In particular, the color filter 1 of the present embodiment has a configuration in which three colored portions 12 (12A, 12B, 12C) and a light shielding portion 13 are provided on one surface side of the substrate 11.

One set of colored portions 12A, 12B, and 12C of 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.
Such a color filter 1 is capable of preventing bright spots from being displayed and displaying a high-quality image.

<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. 4 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 side opposite to the surface of the substrate 11 of the color filter 1 facing the liquid crystal layer 62 (lower side in FIG. 4). And a polarizing plate 68 provided on the side of the substrate 66 opposite to the surface facing the liquid crystal layer 62 (upper side in FIG. 4). 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. 4). 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. 4).
Since the liquid crystal display device 60 includes the color filter 1 as described above, it is possible to stably display a high-quality image in which generation of bright spots is prevented over a long period of time.

"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. 5 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. 6 is a perspective view showing a configuration of a mobile phone (including PHS) to which the electronic apparatus of the present 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. 7 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, the case where the red colored portion, the green colored portion, and the blue colored portion are formed in this order in the colored portion forming step has been representatively described. However, these colored portions are formed. The order is not limited to this. In addition, the color of the colored part formed in the colored part forming step is not limited to that described above.
In the above-described embodiment, the color filter has been described as having three (three colors) colored portions. Even if the color filter has two or less colored portions, four or more colored portions are included. You may have.

Moreover, in the manufacturing method of this invention, the order of each process is not limited to what was mentioned above. For example, in the above-described embodiment, the case where the light shielding portion forming process is performed between the colored portion forming step and the detecting step and the defect repairing process is performed after removing the light shielding portion provided in the defective portion has been described. The light shielding part forming step may be performed between the detection step and the defect repair step. In such a case, for example, the defect repairing step may be performed after the light shielding part forming step is performed and the mask material is removed in a state in which the mask material is arranged at the defect site detected in the detection step. In other words, in the production method of the present invention, a sheet material composed of a material containing a colorant and a photosensitive resin is adhered on a substrate, and then a plurality of colored portions are formed by exposure and development. Colored part forming process to be formed, a detection process for detecting a defective part where a colored part is to be formed in the colored part forming process, and a desired colored part is not formed, and a mask selectively on the defective part A mask forming process for arranging the material, a light shielding part forming process for forming the light shielding part, a mask removing process for removing the mask material, and an ink is applied to the defective part detected in the detection process by an ink jet method to remove the defect. It may have a defect repairing process for repairing. In such a manufacturing method using a mask material, the mask material may be removed by any method. For example, the mask material has a predetermined solubility higher than that of the colored portion and the light shielding portion. It can carry out by making it contact with the solvent of this.
In the present invention, the light shielding part forming step may be omitted.

  In the above-described embodiment, the detection process is described as being performed only once, but may be performed twice or more. For example, in the above-described embodiment, the detection process is described as being performed only between the light shielding part forming process and the light shielding part removing process. However, in addition to such a detection process (first detection process), Furthermore, a detection step (second detection step) may be performed after the light shielding portion removal step. Thereby, it can be confirmed that the constituent material of the light-shielding part does not remain in the defective part (area where the colored part is to be formed), and a suitable colored part can be reliably formed in the defect repairing process. . In the second detection step, when it is confirmed that the constituent material of the light shielding portion remains in the defective part, the processing described in the light shielding portion removing step as described above may be performed again. it can.

  Similarly, when the mask material is used as described above, the detection step may be performed after the mask material is removed. Thereby, it can be confirmed that the mask material is reliably removed, and in the colored portion forming step, only a part of the material for forming the colored portion is present in the defective portion. Even after the material is removed, when the colored portion forming material is present in the defective portion, the colored portion forming material can be effectively used for manufacturing a color filter.

  In the present invention, in the defect repairing step, the amount of color filter ink applied to the defect site may be adjusted as appropriate. More specifically, when a plurality of defect sites are detected in the detection step, the amount of color filter ink applied to each defect site may be different. As a result, for example, even when a plurality of defect portions having different amounts of the material for forming the colored portion are generated, a high-quality color filter in which the occurrence of color unevenness is prevented can be obtained. .

  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.

Table 1 collectively shows the ratio of each monomer component constituting each polymer synthesized in Synthesis Examples 1 to 19 and the weight average molecular weight Mw of each polymer. 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)
A color filter in which 7680 × 4320 pixels were arranged was manufactured as follows.
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 process ((1a) in FIG. 1). reference).

Next, by sticking a sheet material made of a material containing a colorant and a photosensitive resin to one surface of the substrate, and then repeating the exposure and development process, the red colored portion, green The colored portion and the blue colored portion were formed in this order (colored portion forming step; see (1b) to (1g) in FIG. 1).
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 red colored portion, as a colorant, C.I. I. A powder comprising a mixture of CI Pigment Red 177 and the pigment derivative represented by the above formula (30); I. Pigment Red 254 and a powder of a mixture of a pigment derivative represented by the above formula (31), a powder of a sulfonated pigment derivative having a chemical structure represented by the following formula (34), and C.I. I. Pigment Yellow 150 powder was used.

Further, as a sheet material for forming a green colored portion, as a colorant, C.I. I. Pigment Green 58 powder, a sulfonated pigment derivative powder having a chemical structure represented by the above formula (34), and C.I. I. Pigment Yellow 150 powder was used.
Further, as a sheet material for forming a blue colored portion, as a colorant, C.I. I. Pigment Blue 15: 6 powder and C.I. I. Pigment Violet 23 powder was used.
The thickness of the red colored portion, the thickness of the green colored portion, and the thickness of the blue colored portion formed in this step were all 2.0 μm.

Next, a liquid radiation-sensitive composition for forming a light-shielding portion containing carbon black is applied to the entire surface of the substrate on which the red colored portion, the green colored portion, and the blue colored portion are formed. (See (1h) in FIG. 2).
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 was formed by performing the development process using an alkali developing solution, and also performing the post-baking process (refer (1i) of FIG. 2). 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, for the substrate on which the colored portion and the light-shielding portion are formed as described above, the color and color density of each part where the colored portion is to be formed are measured using a CCD camera. The position (coordinates) of the defective portion where the desired colored portion is not formed (the portion where the light shielding portion is formed) was obtained (detection step (first step Detection step) (See (1j) in FIG. 2).

Next, the light-shielding part provided in the defective part detected at the said process was selectively removed by laser beam irradiation (light-shielding part removal process. Refer (1k) of FIG. 2). The laser beam was irradiated under the condition that the excimer laser was irradiated with a 248 nm laser beam of KrF at a pulse width of 12 ns, the number of irradiations: 20 times, and an irradiation amount: 0.12 J / cm ² .
Thereafter, using a CCD camera, the color and color density of each defective part were measured, and it was confirmed that the light-shielding part was reliably removed from each defective part (second detection step).

Next, using the liquid droplet ejection apparatus as shown in FIG. 3, the coloring that should have been formed in the colored portion forming step on the defective portion detected in the detecting step (the defective portion from which the light shielding portion has been removed). A color filter ink of a color corresponding to the portion was applied by an inkjet method (see (1l) in FIG. 2).
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), and then a color filter was obtained by washing with N-methyl-2-pyrrolidone and γ-butyrolactone ( (See (1m) in FIG. 2). A total of 10 color filters were obtained using the same method.

(Examples 2 to 10)
Ten color filters were produced in the same manner as in Example 1 except that the types of colorants contained in the sheet material and the composition of the color filter ink were as shown in Tables 2 and 3.
(Comparative Example 1)
Ten color filters were manufactured in the same manner as in Example 4 except that the light shielding portion was formed and the subsequent steps were omitted.
(Comparative Example 2)
Formation of colored portions using a sheet material (colored portion forming step);
Ten color filters were manufactured in the same manner as in Comparative Example 1 except that the order of the formation of the light shielding portion (light shielding portion forming step) was changed.

  Tables 2 and 3 collectively show the composition of the sheet material used for the production of the color filter and the composition of the color filter ink for each of the examples and comparative examples. In the table, a resin (trade name: YL6810, manufactured by Japan Epoxy Resin Co., Ltd.) as a photo-curable resin is referred to as “PCR”, 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 the pigment derivative represented by the formula (31), and a powder composed of the pigment derivative (one sulfo group in the molecule) represented by the above formula (34) is “ SPD1 ”, a powder composed of a pigment derivative represented by the following formula (35) (two sulfo groups in the molecule) is designated as“ 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 “DA1”, Dispersic 2095 is “DA2”, Dispersic P104 is “DA3”, Dispersic 166 is “DA4”, Dispersic 9075 is “DA5”, Dispersic 2001 is “DA6”, 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 is "S4", ethyl octoate is "S5", diethylene glycol mononormal butyl ether is "S6", triethylene glycol mononormal butyl ether is "S7", 3-ethoxypropoxy It showed the phosphate ethyl with "S8". Further, in the table, the sheet material for forming the red colored portion is “R sheet”, the sheet material for forming the green colored portion is “G sheet”, the sheet material for forming the blue colored portion is “B sheet”, 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 forming ink (color) Filter ink) was indicated as “B ink”. In the tables, “parts” of content indicates parts by weight. In addition, C. used in each 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 [3.1] Occurrence of color unevenness The following evaluation was performed using each color filter obtained as described above.
A liquid crystal display device as shown in FIG. 4 was manufactured under the same conditions using the color filter manufactured in each of the above Examples and Comparative Examples. A cold cathode tube having a color temperature of 11000K was used as the light source.
About these liquid crystal display devices, visual observation is performed in a dark room with a predetermined test pattern being displayed, and the occurrence of color unevenness (including bright spots) at each part is determined according to the following five-stage criteria. And evaluated.

A: Color unevenness is not recognized at all.
B: Color unevenness is hardly recognized.
C: Color unevenness is slightly observed.
D: Uneven color is clearly recognized.
E: Color unevenness is noticeable.

[3.2] 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 respective examples and comparative examples manufactured in [3.1], 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 18000 or more.
B: CR is 16000 or more and less than 18000.
C: CR is 13,000 or more and less than 16000.
D: CR is 10,000 or more and less than 13,000.
E: CR is less than 10,000.

[3.3] Lightness Evaluation The liquid crystal display devices of the above Examples and Comparative Examples used in the evaluation of [3.2] 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 21.1 or more.
B: Lightness Y is 20.6 or more and less than 21.1.
C: Brightness Y is 20.0 or more and less than 20.6.
D: Brightness Y is 18.1 or more and less than 20.0.
E: Lightness Y is less than 18.1.

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 57.1 or more.
B: Brightness Y is 55.4 or more and less than 57.1.
C: Brightness Y is 53.4 or more and less than 55.4.
D: Brightness Y is 51.1 or more and less than 53.4.
E: Lightness Y is less than 51.1.

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 11.9 or more.
B: Lightness Y is 11.6 or more and less than 11.9.
C: Brightness Y is 10.9 or more and less than 11.6.
D: Brightness Y is 10.1 or more and less than 10.9.
E: Lightness Y is less than 10.1.

[3.4] Evaluation of Adhesiveness of Colored Part The color filter was removed from the liquid crystal display devices of the Examples and Comparative Examples used in the evaluation of [3.3].
Each removed color filter was placed in a 20 ° C. environment for 1.5 hours, then in a 75 ° C. environment in 2.5 hours, then in a 20 ° C. environment in 1.5 hours, and then −15 ° 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, using these color filters, a liquid crystal display device as shown in FIG. 4 was assembled again.
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.
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 particular, in Comparative Example 2, the presence of bright spots in the display image was conspicuous, and the image quality of the display image was extremely inferior.
Among the present inventions, the inks used in Examples 1 to 4 and Example 10 (in particular, the inks used in Examples 1 to 4) are particularly excellent in droplet ejection stability and long-term storage stability. As a result, a more stable color filter could be produced over a long period of time.

  DESCRIPTION OF SYMBOLS 1 ... Color filter 11 ... Board | substrate 12, 12A, 12B, 12C ... Colored part 12 ', 12A', 12B ', 12C' ... Sheet material 13 ... Light-shielding part 19 ... Defect site 2 ... Color filter ink 3 ... Coating film 50 DESCRIPTION OF SYMBOLS ... CCD camera 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 ... Discharge scanning unit 103 ... droplet discharge means 104 ... first position control device (moving means) 106 ... stage 108 ... second position control device (moving means) 110 ... tube 112 ... control means 1000 ... image display device 1100 ... personal computer 1102 ... Keyboard 1104 ... Main body 1106 ... Display unit 1200 ... Portable Telephone 1202 ... Operation buttons 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 ... Input for data communication Output terminal 1430 ... TV monitor 1440 ... Personal computer

Claims (11)

A substrate preparation process for preparing a substrate;
A colored part forming step of forming a colored part by sticking a sheet material composed of a material containing a colorant and a photosensitive resin on the substrate, and then exposing and developing.
A detection step of detecting a defective portion where a colored portion is to be formed in the colored portion forming step, and a desired colored portion is not formed;
A color filter manufacturing method comprising: a defect repairing step of repairing a defect by applying ink to the defective part detected in the detection step by an ink jet method.   The said colored part formation process forms the said colored part of multiple colors by repeatedly performing the process of sticking, coating, and developing using a plurality of different types of the sheet materials. A method for producing a color filter.   The manufacturing method of the color filter of Claim 1 or 2 which further has the light-shielding part formation process which forms a light-shielding part between the said colored part formation process and the said defect repair process. The light shielding portion forming step is performed between the colored portion forming step and the detecting step,
The method for manufacturing a color filter according to claim 3, wherein the defect repairing step is performed after removing the light shielding portion provided in the defective portion.   The method for manufacturing a color filter according to claim 4, wherein the removal of the light shielding portion provided in the defective portion is performed by laser light irradiation. The ink used in the defect repairing step is, 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 (3). The method for producing a color filter according to any one of claims 1 to 5, comprising a polymer M containing the monomer component m3 represented.

The ink used in the defect repairing step is, as a resin material, a monomer component x1 represented by the following formula (11), a monomer component x3 represented by the following formula (13), and the following formula (14). The method for producing a color filter according to any one of claims 1 to 6, comprising a polymer X containing a monomer component x4 represented.

The color filter according to any one of claims 1 to 7, wherein the ink used in the defect repairing step includes a polymer Y containing a monomer component y1 represented by the following formula (15) as a resin material. Production method.

  A color filter manufactured using the method according to claim 1.   An image display device comprising the color filter according to claim 9.   An electronic apparatus comprising the image display device according to claim 10.

Images