JPH05333541A - Photopolymerizable composition for color filter and color filter - Google Patents

Abstract

PURPOSE:To obtain a photopolymerizable composition for the color filter excellent in developability and resolution by incorporating a photosensitive resin consisting of specified photopolymerizable compd., photopolymerization initiator, etc., a pigment and a surfactant. CONSTITUTION:The composition contains a photosensitive resin consisting of a photopolymerizable compd. having at least one ethylenic unsaturated double bond, a photopolymerization initiator and other resins, as required. A nonionic surfactant of >=3.0 HLB is preferably used as the surfactant, and a polyoxyethylene alkyl ether, oxyethylene-oxypropylene block copolymer, etc., are preferably used as the nonionic surfactant. The developing time is shortened by using this composition, the developer residue is reduced, the process is rationalized, and further the quality and yield are improved.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a color filter composition and a color filter. More specifically, the present invention relates to a photopolymerizable composition for a color filter having excellent optical properties used for a liquid crystal display device, a color separation device, a sensor and the like, and a color filter obtained therefrom.

[0002]

2. Description of the Related Art Color image pickup devices for VTR cameras and color copying machines, which are in great demand, and colors used in color liquid crystal display devices and the like, which are being converted from the CRT system due to the trend of weight reduction and thinning. The filter is formed by providing a fine area colored in two or more kinds of hues on a solid-state image sensor or a transparent substrate.

Examples of the method for producing such a colored thin film include a dyeing method, a dye internal addition method, a pigment internal addition method, an electrodeposition method, an electrolytic micelle method, a printing method, etc., but particularly high light resistance, high heat resistance, When a high-definition image is required, it is produced by the pigment internal addition method.

In the pigment internal addition method, a photosensitive resin (resist) to which a pigment has been internally added is applied to a glass substrate or the like, exposed through a mask to cure only the hue portion, and the unexposed portion is removed by development. A color fine pixel having a desired shape is formed by a photolithography method. The development includes organic solvent development and aqueous development, but aqueous development is the mainstream in terms of safety and economy. The developing method is a dipping method in which the coated substrate after exposure is immersed in a developing solution or statically developed by gently shaking, and a shower method in which the developing solution is developed while applying stress by a pressure nozzle or the like. Etc.

The aqueous development type photosensitive resin used for the resist is generally a non-aqueous resin to which a hydrophilic group such as a carboxyl group is added, and an alkali having an affinity for this is used for the development. Use an aqueous solution. However, since the penetration speed of the developing solution into the uncured portion is slow, it takes time to dissolve and remove by the dipping method, and sufficient development cannot be performed unless physical stress is applied. In addition, since it takes time, there is a problem that it causes deterioration and deterioration of the developer. The shower method is economically disadvantageous in that the developer is wasted and the waste liquid treatment becomes complicated. Furthermore, over-development tends to peel off even the target pattern, which lowers the resolution. or,
Since the cake-like material of the resin composition once peeled off by development is redeposited on the substrate (development residue), foreign matter becomes defective and defective products are generated. At the time of manufacturing, improvements have been desired in terms of streamlining processes, reducing costs, improving quality, and improving product yield.

[0006]

It is desired to develop a photopolymerizable composition for a color filter, which has good developability and resolution in a streamlined process when a color filter is produced by a pigment internal addition method. ..

[0007]

As a result of intensive studies to solve these problems, the present inventors have found that a specific resin composition solves the above problems, and It came to completion.

That is, the present invention includes (1) a photopolymerizable compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator, and a photosensitive resin, a pigment and a surfactant, which may be other resins. A photopolymerizable composition for a color filter, which comprises: (2) The photopolymerizable composition for a color filter according to (1), wherein the surfactant is a nonionic surfactant having an HLB of 3.0 or more. Composition (3) The nonionic surfactant is polyoxyethylene alkyl ether, polyoxyethylene alkylaryl ether, oxyethylene-oxypropylene block copolymer, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene rosin ether, poly Oxyethylene lanolin ether, Polyoxyethylene fatty acid ester, Polio A photopolymerizable composition for a color filter according to the above item (2), which is a ciethylene alkylamine, a polyoxyethylene alkylamide ether, a sorbitan fatty acid ester or a glycerin fatty acid ester. (4) The above item (1) to (3) Provided is a color filter obtained from a photopolymerizable composition for a color filter.

When the photopolymerizable composition for color filters of the present invention is used, the development time can be shortened as compared with the case of the conventional formulation, and the development residue is reduced, so that the process is rationalized, the quality is improved, and the yield is improved. Will be useful for improving. In this case, the nonionic surfactant as a developability accelerator promotes the wetting and permeation of the developing solution into the resin or pigment in the unexposed area and facilitates the dissolution of the unexposed area. Is estimated to be possible.

The photopolymerizable composition for a color filter and the color filter of the present invention will be described in more detail. A surfactant is used in the present invention, and a preferred example thereof is a nonionic surfactant. Specific examples of the nonionic surfactant that can be used in the present invention include polyoxyethylene alkyl ether, polyoxyethylene alkylaryl ether, oxyethylene-oxypropylene block copolymer, polyoxyethylene polyhydric alcohol fatty acid ester, and polyoxy. Ethylene rosin ether,
Examples thereof include polyoxyethylene lanolin ether, polyoxyethylene fatty acid ester, polyoxyethylene alkylamine, polyoxyethylene alkylamide ether, sorbitan fatty acid ester, and glycerin fatty acid ester. The developability accelerator is not limited to these nonionic surfactants, but polyoxyethylene alkyl ethers having a HLB of 3.0 or higher and polyoxyethylene alkylaryl ether surfactants are particularly preferred examples. Be done. You may use these 1 type or in mixture of 2 or more types. It is considered that these surfactants have an effect of promoting development. The amount of the surfactant used is preferably 0.1 to 30 parts, and particularly preferably 2.5 to 20 parts, relative to 100 parts of the photosensitive resin. (Parts mean parts by weight. The same applies hereinafter.)

In the present invention, a resin composed of a photopolymerizable compound having at least one ethylenically unsaturated double bond, a photopolymerization initiator, and optionally other resin is referred to as a photosensitive resin. Examples of the photopolymerizable compound having at least one ethylenically unsaturated double bond that can be used include the following compounds.

First, ethyl acrylate, butyl acrylate, hydroxyethyl acrylate, hydroxyethyl methacrylate, ethylene glycol dimethacrylate, pentaerythritol triacrylate, pentaerythritol trimethacrylate as monomers, oligomers and prepolymers capable of photocrosslinking or photopolymerization. , Dipentaerythritol hexaacrylate, dipentaerythritol hexamethacrylate, acrylic acid or methacrylic acid esters of monohydric or polyhydric alcohols; polyesters obtained by condensing polyhydric alcohols with monobasic acids or polybasic acids Polyester (meth) acrylate obtained by reacting (meth) acrylic acid with a prepolymer; reacting a compound having a polyol group and two isocyanate groups After (meth) polyurethane obtained by reacting acrylic acid (meth) acrylate;
Bisphenol A type epoxy resin, bisphenol F type epoxy resin, novolac type epoxy resin, polycarboxylic acid glycidyl ester, polyol polyglycidyl ester, aliphatic or alicyclic epoxy resin, amine epoxy resin, triphenolmethane type epoxy resin, dihydroxybenzene Examples thereof include photopolymerizable compounds such as epoxy (meth) acrylate obtained by reacting an epoxy resin such as a type epoxy resin with (meth) acrylic acid.

Photopolymerizable monomers and oligomers having both a (meth) acryloyl group and a carboxyl group can also be used. Specific examples of such compounds include bisphenol A type epoxy resin, bisphenol F type epoxy resin and novolac type epoxy resin. Reacts (meth) acrylic acid with epoxy groups such as polycarboxylic acid glycidyl ester, polyol polyglycidyl ester, aliphatic or alicyclic epoxy resin, amine epoxy resin, triphenolmethane type epoxy resin, dihydroxybenzene type epoxy resin. Epoxy (meth) acrylate-carboxylic acid adduct obtained by reacting an acid anhydride with the resulting hydroxy group; ethylene, propene, isobutylene, styrene, vinylphenol, acrylic acid, acrylic copolymerizable with maleic anhydride A compound obtained by reacting a maleic anhydride portion of a copolymer with a monomer such as ester or acrylamide with an acrylate having an alcoholic hydroxy group such as hydroxyethyl acrylate or an acrylate having an epoxy group such as glycidyl methacrylate to form a half ester; acryl Examples thereof include compounds obtained by further reacting acrylic acid with the -OH group of a copolymer of an acid, an acrylic ester and an acrylate having an alcoholic hydroxy group such as hydroxyethyl acrylate.

These photopolymerizable compounds are used alone or as a mixture. Examples of other resins optionally used to form the photosensitive resin include film-forming polymeric binders. As the film-forming polymer binder, any organic polymer binder that is compatible with the photopolymerizable resin can be used, and examples thereof include polymethacrylic acid ester or its partial hydrolyzate and polyacetic acid. Vinyl or its hydrolysis, polystyrene, polyvinyl butyral, polychloroprene, polyvinyl chloride, chlorinated polyethylene, chlorinated polypropylene, polyvinylpyrrolidone, a copolymer of styrene and maleic anhydride or a half ester thereof, acrylic acid, an acrylic ester, A copolymer having a glass transition point of 35 ° C. or higher selected from a group of copolymerizable monomers such as methacrylic acid, methacrylic acid ester, acrylamide, and acrylonitrile is used. Among these, those having an acidic group such as a carboxyl group are capable of aqueous development and are advantageous in economical efficiency and safety as compared with organic solvent development.

In the present invention, an epoxy compound may be used as another resin for the purpose of improving heat resistance. The epoxy compound has a function of improving heat resistance by thermally reacting with the compound having the carboxylic acid or the like and crosslinking. Specific examples of the epoxy compound include bisphenol A type epoxy resin, bisphenol F type epoxy resin, novolac type epoxy resin, polycarboxylic acid glycidyl ester, polyol polyglycidyl ester, aliphatic or alicyclic epoxy resin, amine epoxy resin, and triepoxy resin. Examples thereof include phenolmethane type epoxy resin and dihydroxybenzene type epoxy resin. These other resins account for 30% of the weight of the photopolymerizable compound.
It is used within the following range, preferably within the range of 5 to 15%.

As the photopolymerization initiator used in the present invention, various photopolymerization initiators may be used alone or in combination, but generally, a colored photopolymerizable resin in which a pigment is dispersed in a photopolymerizable resin is used. Then, the ultraviolet rays necessary for the photopolymerization initiator to generate radicals are absorbed by the pigment, and the radicals cannot be sufficiently generated, so that the polymerization may be insufficient. A highly sensitive compound or composition is required as a photopolymerization initiator for a colored photopolymerizable resin in which a pigment is dispersed in a photopolymerizable resin. Specific examples of such a photopolymerization initiator include benzyl; benzoin ether; benzoin isobutyl ether; benzoin isopropyl ether;
Benzophenone; benzoylbenzoic acid; methyl benzoylbenzoate; 4-benzoyl-4'-methyldiphenyl sulfide; benzylmethyl ketal; 2-n-butoxyethyl-4-dimethylaminobenzoate; 2-chlorothioxanthone; 2,4-diethylthioxanthone 2,4-diisopropylthioxanthone; dimethylaminomethylbenzoate; p-dimethylaminobenzoate isoamyl; 3,3'-dimethyl-4-methoxybenzophenone;2,4-dimethylthioxanthone;
(4-dodecylphenyl) -2-hydroxy-2-methylpropan-1-one; 1-hydroxycyclohexylphenyl ketone; 2-hydroxy-2-methyl-1-phenylpropan-1-one; 1- (4-isopropyl Phenyl) -2-hydroxy-2-methylpropane-1-
On; isopropylthioxanthone; methylobenzoyl formate; 2-methyl-1- [4- (methylthio)
Phenyl] -2-morpholinopropan-1-one; 2
-Benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one and the like.

These photopolymerization initiators are contained in an amount of 0.5 to 30% by weight, preferably 2 to 15% by weight, based on the photopolymerizable compound.
Used within the range, and these can be used alone or in combination of 1 to 3 kinds. Further, in the present invention,
A hexaarylbisimidazole compound or a hydrogen donor may be used in combination as a photopolymerization initiator. Examples of the hexaarylbisimidazole compound include 2,2′-
Bis (o-chlorophenyl) -4,4 ', 5,5'-tetraphenylbisimidazolyl;2,2'-bis (o-
Chlorophenyl) -4,4 ', 5,5'-tetra- (p
-Methoxyphenyl) bisimidazolyl, which are optionally used in the range of 0.5 to 30% by weight, preferably 2.0 to 15% by weight, based on the photopolymerizable compound.

As another hydrogen donor, an aromatic mercaptan compound, an aromatic amine compound or the like can be used. Among these, as the aromatic mercaptan hydrogen donor, a compound having one or two mercapto groups having benzene or a heterocycle as a nucleus is preferable.
In the case of substitution, one of the mercapto groups may be substituted with alkyl, aralkyl, or phenyl, or may be a dimer in the form of disulfide. Preferred examples include 2-mercaptobenzothiazole and 2-mercaptobenzothiazole.
Examples thereof include mercaptobenzoxazole, etc., and 0.5 to 30% by weight, preferably 2.0, of the photopolymerizable compound.
It is optionally used in the range of ~ 15% by weight. As the aromatic amine-based hydrogen donor, benzene or a compound having a heterocycle as a nucleus and one or two amino groups is preferable. In this case, the amino group is an alkyl group or a substituted alkyl group. It may be substituted, and the monoamino compound may be further substituted with a carboxyl group, an alkoxycarbonyl group, a substituted alkoxycarbonyl group, a phenoxycarbonyl group, a substituted phenoxycarbonyl group, a nitrile group or the like. These are optionally used in the range of 0.5 to 30% by weight, preferably 2.0 to 15% by weight, based on the photopolymerizable compound.

The pigment to be used preferably has a particle size of 1/2 or less of the wavelength of the transmitted light in order to transmit visible light, and more preferably the average number particle size is 200 nm.
The pigments dispersed below are preferred. The pigment is usually dispersed together with a dispersant (for example, a polycaprolactone compound, a long-chain alkylpolyaminoamide compound, etc.) in a disperser such as a sand mill or a roll mill, and then added to the resin system described above. Be done.

Phthalocyanine pigments and the like are used as blue pigments, quinacridone pigments, perylene pigments, pyrrolo-pyrrole pigments, anthraquinone pigments and the like are used as red pigments, and halogenated phthalocyanine pigments are used as green pigments. The system pigments are mentioned as preferable examples. These may be used alone or may be toned by adding other pigments. As the pigment for the black matrix, garbon, titanium carbon, iron oxide, and azo black pigment are used alone or in combination of two or more. These red, green, blue and black fine particle pigments are used in the range of 10 to 80% by weight, preferably 20 to 50% by weight, based on the photosensitive resin.

In preparing a color filter using the photopolymerizable composition for a color filter of the present invention, the photopolymerizable composition for a color filter of the present invention is applied to a substrate such as a glass plate. You may dilute using an organic solvent in order to improve property. Examples of the organic solvent include alkyl cellosolves such as methyl cellosolve, ethyl cellosolve, propyl cellosolve, isopropyl cellosolve and butyl cellosolve, and their acetates, alkylene glycols such as ethylene glycol, diethylene glycol and propylene glycol, and alkyl ethers and alkyl ether acetates thereof. However, cyclohexanone, diglyme, toluene, xylene, etc. can be used, but not limited thereto. They are,
You may use it individually or in combination of 2 or more types. When an organic solvent is used, the solid content of the resin, pigment, and photopolymerization initiator is usually adjusted to 5 to 80% by weight.

The photopolymerizable composition for a color filter of the present invention comprises a photopolymerizable compound, a photopolymerization initiator, and optionally other resin, a pigment treated with a pigment dispersant, and a solvent in the proportions described above. It is obtained by doing. Mixing is preferably performed while processing with an ordinary mixer or disperser. The obtained photopolymerizable composition for a color filter of the present invention can also be filtered to remove coarse particles and foreign matters. The filtration may be carried out under pressure using, for example, a membrane, surface or depth type filtration material having a pore diameter of 1 μm or less, more preferably 0.5 μm or less.

A general method for preparing a color filter using the photopolymerizable composition for a color filter of the present invention is as follows. The photopolymerizable composition for a color filter of the present invention is applied to a substrate such as a glass plate by a spinner or the like,
Further drying of the solvent gives a smooth coating film.
This coating film is irradiated with ultraviolet rays through a negative mask in order to form a desired image. At this time, a device such as mask alignment can be used so that the entire coating film is uniformly irradiated with parallel rays. Next, this irradiated coating film is heated for a short time to accelerate polymerization, and then immersed in a developing solution or
The desired image (color filter) is obtained by exposing to a shower to dissolve the uncured portion and developing. The preferred film thickness of the color filter is usually 0.5 to
It is 5.0 μm. When a color filter is prepared using the photopolymerizable composition for a color filter of the present invention, the development time can be shortened as compared with the conventional case, and the development residue is also reduced. It is useful for rationalization, quality improvement, and yield improvement.

[0024]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.

Example 1 A photopolymerizable composition having the following composition was prepared. (Photopolymerizable compound) KAYARAD DPHA (trade name, manufactured by Nippon Kayaku) 10.0 g KAYARAD R2089 (trade name, manufactured by Nippon Kayaku) 18.0 g KAYARAD R5198 (trade name, manufactured by Nippon Kayaku) 17.0 g (light) Polymerization initiator) IRGACURE 369 (trade name, manufactured by Ciba Geigy) 1.0 g KAYACURE DETX (trade name, manufactured by Nippon Kayaku) 0.5 g (development accelerator) Emulgen A-60 (trade name, manufactured by Kao) 2.0 g (Solvent) Ethyl cellosolve acetate 100.0g

Red, green, blue, added to the above photopolymerizable composition,
A black particulate pigment paste was prepared as follows.

Table 1 Pigment pigments used Mixing ratio (A) Red; C.I. I. Pigment Red 177 75 C.I. I. Pigment Yellow 83 25 (B) green; C.I. I. Pigment Green 7 90 C.I. I. Pigment Yellow 83 10 (C) blue; C.I. I. Pigment Blue 15 95 C.I. I. Pigment Violet 23 5 (D) Black; Carbon Black 100

To 20 g of the above (A) red pigment mixture, 4 g of DISPER BIC-161 (trade name, manufactured by BIC Chemie, polycaprolactone compound) and 76 g of ethyl cellosolve acetate as a dispersant were added, and dispersed by a sand mill. A red fine particle pigment paste was obtained, 40% by weight of the red fine particle pigment paste was added to the photopolymerizable composition, and the mixture was further treated with a sand mill, and then filtered with a filter having a pore size of 0.5 μm under pressure. A photopolymerizable composition for a red color filter was obtained. The same treatment is applied to the green pigment (B), the blue pigment (C), and the black pigment (C) to obtain a green fine particle pigment paste, a blue fine particle pigment paste, and a black fine particle pigment paste, respectively. For green,
A photopolymerizable composition for blue and black color filters was obtained.

Example 2 The photopolymerizable composition for a color filter obtained in Example 1 was coated on a glass substrate with a spinner and dried by heating at 100 ° C. for 1 minute. The coating film thus obtained was irradiated with 100 mJ of ultraviolet light through a mask having a resolution test pattern, and then developed with a 0.1% by weight TMAH aqueous solution shower at 25 ° C. for 30 seconds to form a colored pattern. Earned, 200
Post baking was performed at 10 ° C. for 10 minutes. When the obtained colored pattern was observed with an optical microscope, no development residue contamination was observed on the glass substrate and the pixels. The minimum resolution of the film at this time was 2 μm. This colored pattern was excellent in resolution and film strength, with no migration of pigment after development, brittle phenomenon of film, and film loss observed.

Examples 3 to 32 Photopolymerizable compositions for color filters were prepared in the same manner as in Example 1 with the compositions shown in Tables 2 to 11, and color filters were prepared in the same manner as in Example 2. The raw materials used are shown below. In the table, the unit is (g). In each case, a colored pattern (color filter) having excellent minimum resolution and high film quality without pigment migration, film weakening, film loss, etc. was obtained.

Group A (photopolymerizable compound) (1) KAYARAD DPHA (trade name, Nippon Kayaku, dipentaerythritol hexaacrylate) (2) KAYARAD RP1040 (trade name, Nippon Kayaku, pentaerythritol polyethoxytetra) (3) KAYARAD TMPTA (trade name, manufactured by Nippon Kayaku, trimethylolpropane triacrylate) (4) KAYARAD FM100 (trade name, manufactured by Nippon Kayaku, dipentaerythritol hexaacrylate) (5) KAYARAD R2089 (Brand name, Nippon Kayaku, phenol novolac epoxy acrylate) (6) KAYARAD R5107 (Brand name, Nippon Kayaku, triphenylmethane-based epoxy acrylate phthalic anhydride adduct) (7) KAYARAD R5198 (Brand name, Nippon Kayaku, bisphenol A type epoxy acrylate phthalic anhydride adduct) (8) KAYARAD R849 (Brand name, Nippon Kayaku, styrene-maleic acid half ester acrylate) (9) KAYARAD R5056 ( Trade name, Nippon Kayaku, phenol novolac epoxy acrylate phthalic anhydride adduct) (10) KAYARAD R924 (trade name, Nippon Kayaku, styrene-maleic acid half ester acrylate)

Group B (Film forming polymer binder) (11) Styrene-maleic acid half alkyl ester copolymer (12) Benzyl methacrylate-methacrylic acid copolymer (13) Ethyl methacrylate-methacrylic acid copolymer

Group C (epoxy compound) (14) AK601 (trade name, manufactured by Nippon Kayaku, diglycidyl ester of cyclohexanedicarboxylic acid) (15) XGE (trade name, manufactured by Nippon Kayaku, dihydroxybenzene diglycidyl ether) (16) ) RGE (trade name, manufactured by Nippon Kayaku, dimethylolbenzene diglycidyl ether) (17) Epicoat 828 (trade name, manufactured by Yuka Shell Epoxy)

Group D (photopolymerization initiator) (18) IRGACURE 369 (trade name, manufactured by Ciba-Geigy, 2-benzyl-2-dimethylamino-1- (4
-Morpholinophenyl) -butanone) (19) IRGACURE 907 (trade name, manufactured by Ciba-Geigy, 2-methyl- {4- (methylthio) phenyl}}
(2-morpholino-1-propanone) (20) KAYACURE DETX (trade name, Nippon Kayaku, diethylthioxanthone) (21) KAYACURE EPA (trade name, Nippon Kayaku, para-diethylaminobenzoic acid ethyl ester) (22) Isopropylthioxanthone (23) 2,2'-bis (o-chlorophenyl) -4,4
4 ', 5,5'-tetraphenylbisimidazolyl (24) 2,2'-bis (o-chlorophenyl) -4,
4 ', 5,5'-Tetra- (p-methoxyphenyl) bisimidazolyl (25) 2-mercaptobenzothiazole (26) 2-mercaptobenzoxazole (27) Michal's ketone (28) 4- (p-methoxyphenyl) ) -2,6-Di-
(Trichloromethyl) -s-triazine

Group E (surfactant) (29) Emulgen A-60 (trade name, manufactured by Kao, H
LB12.8) (30) Emulgen 840S (trade name, manufactured by Kao, H
LB17.9) (31) Emulgen 930 (trade name, manufactured by Kao, H
LB15.1) (32) Leodol TW-O120 (trade name, manufactured by Kao, HLB15.0) (33) Leodol SP-O10 (trade name, manufactured by Kao, HLB4.3) (34) Poise 521 (trade name, Kao) (Manufactured) (35) Pluronic F-108 (trade name, Asahi Denka)

Group F (fine particle pigment paste) (36) Red fine particle pigment paste obtained in Example 1 (37) Green fine particle pigment paste obtained in Example 1 (38) Example 1 Blue fine particle pigment paste obtained in (39) Black fine particle pigment paste obtained in Example 1

[0037]

[0038]

[0039]

[0040]

[0041]

[0042]

[0043]

[0044]

[0045]

[0046]

Comparative Example 1 In Example 1, a photopolymerizable composition containing no Emulgen A-60 was prepared in the same manner as in Example 1, and a colored pattern was prepared in the same manner as in Example 2. The obtained colored pattern was in a poorly developed state and showed pigment migration and development residues. The minimum resolution of this pattern is 50 μm
Met.

[0048]

A photopolymerizable composition for a color filter containing a finely divided pigment having excellent developability and resolution is obtained, the process of the color filter production process is rationalized, and the yield is high. It has become possible to manufacture high-definition color filters.

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Claims (4)

[Claims] 1. At least one ethylenically unsaturated double bond.
A photopolymerizable composition for a color filter, comprising one or more photopolymerizable compounds, a photopolymerization initiator, a photosensitive resin consisting of other resins in some cases, a pigment and a surfactant. 2. The photopolymerizable composition for a color filter according to claim 1, wherein the surfactant is a nonionic surfactant having an HLB of 3.0 or more. 3. The nonionic surfactant is polyoxyethylene alkyl ether, polyoxyethylene alkylaryl ether, oxyethylene-oxypropylene block copolymer, polyoxyethylene polyhydric alcohol fatty acid ester, polyoxyethylene rosin ether,
The photopolymerizable composition for a color filter according to claim 2, which is polyoxyethylene lanolin ether, polyoxyethylene fatty acid ester, polyoxyethylene alkylamine, polyoxyethylene alkylamide ether, sorbitan fatty acid ester or glycerin fatty acid ester. 4. A color filter obtained from the photopolymerizable composition for a color filter according to claim 1.