TWI400561B - The colored layer is formed with a sensitive radiation linear composition and a color filter - Google Patents

Description

Coloring layer forming sensitive radiation linear composition and color filter

The present invention relates to a linear composition for forming a photosensitive layer for coloring a layer, a method for forming a color filter, a color filter, and a color liquid crystal display panel. More specifically, it is a sensitive radiation used in the formation of a color layer pixel and/or a black matrix useful in the manufacture of a color filter for a transmissive or reflective type color liquid crystal display device, a color image pickup device element, or the like. Linear composition, method of forming a color filter using the linear composition of the radiation radiation, color filter having a coloring layer formed by the linear composition of the radiation radiation, and color liquid crystal display having the color filter panel.

Conventionally, it is known that when a color filter is produced using a linear composition for forming a radiation sensitive layer for coloring, a linear composition for forming a photosensitive layer for forming a color layer is usually formed on a substrate or a substrate on which a light-shielding layer of a desired pattern is formed in advance. The coating film is exposed to radiation through a mask having a desired pattern shape, and the unexposed portion is dissolved and removed, and then heat-treated using a clean oven and a hot plate to obtain a method of each color pixel (refer to the special opening) Japanese Patent Publication No. 2-144502 and Japanese Patent Application Laid-Open No. Hei-3-53201. When the color filter is manufactured by such a method, the linear composition for forming a colored layer is usually applied by spin coating to the substrate, but as the substrate is enlarged, the coating method is to move to the slit. The method of the slit nozzle and the method of the slit nozzle such as the spin coating method.

However, in the slit/spin coating method and the non-spin coating method, after coating with a slit nozzle, problems of coatability and productivity are caused. That is, in order to avoid contamination of the slit nozzle caused by the linear composition of the sensitive radiation of the colored layer formation, it is necessary to use a cleaning step of the slit nozzle. In the washing step, the slit nozzle is usually washed with the main solvent of the linear composition for the sensitive radiation, but if the solubility to the main solvent is low, the coloring layer forming sensitivity remaining in the nozzle portion is generated. The radiation linear composition becomes a protrusion residue, and when the substrate is coated with the colored layer to form the linear composition for the sensitive radiation, the problem of streaking occurs with respect to the direction in which the nozzle is performed, and the dried matter of the linear composition of the sensitive layer for forming the colored layer falls. Moreover, it adheres to a board|substrate, and it becomes a defect, and the yield fall. Therefore, it is important that the colored layer is formed into a dry matter of the linear composition of the sensitive radiation for solvent resolubility.

On the other hand, the formation of a sensitive radiation linear composition for a colored layer and the use of a high boiling point solvent suppresses the occurrence of a dry matter, but at this time, it is difficult to sufficiently evaporate the solvent, cause stickiness, and cause a decrease in productivity due to a prolonged heating time. The problem. Further, according to the selection and addition amount of the high-boiling solvent type, the colored layer forming the linear composition for the sensitive radiation is heated in the coating step, and the microbubbles contained in the composition appear on the surface of the coating film when the solvent evaporates. After drying, the crater-like shape (hereinafter referred to as "bump hole") remains as it is.

SUMMARY OF THE INVENTION An object of the present invention is to provide a solution to the above problems, in which a solvent having a linear composition for forming a coloring layer which is formed in a slit nozzle portion has a high solvent resolubility and a coloring layer which does not cause a boiling hole. A linear composition of sensitive radiation is used.

Another object of the present invention is to provide a method for producing a color filter from the linear composition for forming a photosensitive layer for coloring, the color filter, and a liquid crystal display element having the color filter.

Still other objects and advantages of the present invention are set forth in the description which follows.

In order to solve the above-mentioned problems, the inventors of the present invention have repeatedly conducted a review of the results, and found that a solvent for forming a colored layer can be used as a linear composition for forming a colored layer by using a solvent containing dipropylene glycol methyl ether acetate as an essential component. The solvent resolubility of the dried product of the radiation linear composition is remarkably improved, and the occurrence of the sudden boiling pores is suppressed, and the completion of the present invention is achieved.

Accordingly, the above objects and advantages of the present invention are the first via containing (A) a colorant, (B) an alkali-soluble resin, (C) a polyfunctional monomer, (D) a photopolymerization initiator, and (E) a dipropylene glycol. A solvent of 3 to 8.5% by weight of methyl ether acetate is obtained by forming a linear composition of a sensitive radiation characteristic of the colored layer.

The "colored layer" as used in the present invention means a layer composed of a pixel and/or a black matrix used for a color filter.

The above objects and advantages of the present invention are attained by the second method of forming a color filter characterized by the steps (1) to (4) below.

(1) A step of forming a coating film of the linear composition for forming a photosensitive layer of the colored layer on the substrate.

(2) a step of exposing at least a part of the aforementioned coating film.

(3) A step of developing a film after exposure.

(4) A step of heat-treating the coating film after development.

According to the present invention, the above object and advantage of the present invention are achieved by the third color filter comprising a coloring layer formed of the linear composition for forming a photosensitive radiation by the colored layer.

According to the present invention, the above objects and advantages of the present invention are achieved by the fourth color liquid crystal display panel having the color filter described above.

Hereinafter, the present invention will be described in detail.

Linear layered composition - (A) colored layer -

The color tone of the coloring layer in the present invention is not particularly limited, and may be appropriately selected depending on the use of the obtained color filter, and may be a pigment, a dye or a natural pigment.

Since the color filter requires high-purity and high-transparency color development and heat resistance, the coloring layer in the present invention is preferably a coloring agent having high color developability and high heat decomposition resistance. Organic pigments and inorganic pigments are preferred, and organic pigments and carbon black are particularly preferred.

The above-mentioned organic pigment may, for example, be a compound classified as a pigment in a color index (C.I.; issued by The Society of Dyers and Colourists), and specifically, a color index (C.I.) number as follows.

CI Pigment Yellow 83, CI Pigment Yellow 128, CI Pigment Yellow 138, CI Pigment Yellow 139, CI Pigment Yellow 150, CI Pigment Yellow 151, CI Pigment Yellow 152, CI Pigment Yellow 153, CI Pigment Yellow 154, CI Pigment Yellow 155, CI pigment yellow 156, CI pigment yellow 166, CI pigment yellow 168, CI pigment yellow 175, CI pigment yellow 185; CI pigment violet 19, CI pigment violet 23, CI pigment violet 29, CI pigment violet 32, CI pigment violet 36, CI Pigment Violet 38; CI Pigment Red 177, CI Pigment Red 202, CI Pigment Red 206, CI Pigment Red 207, CI Pigment Red 208, CI Pigment Red 209, CI Pigment Red 215, CI Pigment Red 216, CI Pigment Red 220, CI Pigment Red 224, CI Pigment Red 226, CI Pigment Red 242, CI Pigment Red 243, CI Pigment Red 245, CI Pigment Red 254, CI Pigment Red 255, CI Pigment Red 264, CI Pigment Red 265; CI Pigment Blue 15, CI Pigment Blue 15:3, CI Pigment Blue 15:4, CI Pigment Blue 15:6, CI Pigment Blue 60; CI Pigment Green 7, CI Pigment Green 36; CI Pigment Black 1, CI Pigment Black 7.

These organic pigments may be used alone or in combination of two or more.

Further, the organic pigment is purified and used, for example, by a sulfuric acid recrystallization method, a solvent washing method, or a combination thereof.

Further, examples of the inorganic pigment include titanium oxide, barium sulfate, calcium carbonate, zinc white, lead sulfate, yellow lead, zinc yellow, red iron oxide (red iron oxide (III)), cadmium red, ultramarine blue, indigo, and chrome oxide green. , cobalt green, amber, titanium black, synthetic iron black, carbon black and so on.

These inorganic pigments may be used alone or in combination of two or more.

In the case where the linear composition for forming a coloring layer of the coloring layer of the present invention is used for forming a pixel, it is preferred to use one or more organic pigments as a coloring agent, and in the case of forming a black matrix, it is preferred to use two or more kinds. The organic pigment, carbon black or a combination thereof is used as a colorant.

The carbon black used to form the black matrix may, for example, be SAF, SAF-HS, ISAF, ISAF-LS, ISAF-HS, HAF, HAF-LS, HAF-HS, NAF, FEF, FEF-HS, SRF, SRF-LM. , SRF-LS, GPF, ECF, N-339, N-351, etc.; black FT, MT and other thermal cracking carbon black; acetylene black.

These carbon blacks may be used alone or in combination of two or more.

In the present invention, each of the above-mentioned pigments is modified and used as a polymer to be used as desired. The polymer of the surface of the modified pigment particle, for example, a polymer described in JP-A No. 8-259876, and a commercially available polymer and oligomer for dispersing various pigments.

Further, the coloring agent of the present invention can be used together with a dispersing agent as needed.

The dispersing agent may, for example, be a surfactant such as a cationic system, an anionic system, a nonionic system, an amphoteric, a polyfluorene-based or a fluorine-based surfactant.

Specific examples of the surfactant include polyoxyethylene alkyl ethers such as polyoxyethylene lauryl ether, polyoxyethylene stearyl ether, and polyoxyethylene oleyl ether; polyoxyethylene n-octyl phenyl ether; polyoxyethylene n-decyl group; Polyoxyethylene alkyl phenyl ether such as phenyl ether; polyethylene glycol diester of polyethylene glycol dilaurate or polyethylene glycol distearate; sorbitan fatty acid ester; fatty acid modification Polyester; tertiary amine modified urethane; polyethyleneimine, etc., and the following trade names, KP (Shin-Etsu Chemical Co., Ltd.), Polyflow (Kyoeisha Chemical Co., Ltd.), Efutop (Tokem Products), Megafac (Daily Ink Chemical Industry Co., Ltd.), Floride (Sumitomo 3M (share) system, Asahiguard, Safuron (above, Asahi Glass Co., Ltd.), Disperbyk-101, the same 103, with 107, with 110, with 111, with 115, with 130, with 160, with 161, with 162, with 163, with 164, with 165, with 166, with 170, with 180, with 182, with 2000, Same as 2001 (above, Bykemi Japan), Slousparce S5000, S12000, S13240, S13940, S17000, S20000, S22000, S24000, S240 00GR, the same S26000, the same S27000, the same S28000 (above, Abicia (share) system), EFKA46, the same 47, the same 48, the same 745, the same 4540, the same 4550, the same 6750, EFKA LP4008, the same 4009, the same 4010, the same 4015, 4050, 4055, 4560, 4800, EFKA Polymer 400, 401, 402, 403, 450, 451, 453 (above, Efuka Chemicals).

These surfactants may be used alone or in combination of two or more.

The amount of the surfactant to be used is preferably 50 parts by weight or less, more preferably 0 to 30 parts by weight, per 100 parts by weight of the coloring agent.

In the present invention, the photosensitive layer forming photosensitive radiation-forming resin composition can be prepared according to an appropriate method. When a pigment is used as the colored layer, for example, a pigment is used in a solvent, in the presence of a dispersing agent, and, in some cases, together with an alkali-soluble resin, for example, bead mill, roll mill, or the like, and mixed and dispersed to form a pigment dispersion liquid while being pulverized, and It is preferable to mix and prepare with the components (B) to (E) described later.

The amount of the dispersing agent used in preparing the pigment dispersion liquid is preferably 100 parts by weight or less, more preferably 0.5 to 100 parts by weight, still more preferably 1 to 70 parts by weight, particularly preferably 10 parts by weight based on 100 parts by weight of the pigment. 50 parts by weight. When the amount of the dispersant used exceeds 100 parts by weight, the development property or the like may be impaired.

In addition, the solvent to be used in the preparation of the pigment dispersion liquid may be, for example, the same as the solvent exemplified in the component (E) described later, and the solvent used in the preparation of the pigment dispersion liquid may be the same as the solvent added to the pigment dispersion liquid. Or different.

The solvent usage amount in preparing the pigment dispersion liquid is preferably 500 to 1,000 parts by weight, more preferably 700 to 900 parts by weight, based on 100 parts by weight of the pigment.

Further, the alkali-soluble resin used in the preparation of the pigment dispersion may be the same as or different from the component (B).

When preparing a pigment dispersion liquid, when using a bead mill, for example, using a glass bead having a diameter of about 0.5 to 10 mm, titanium oxide beads, or the like, a pigment mixture composed of a pigment, a solvent, and a dispersant is preferably one side. It can be carried out by cooling with cooling water or the like.

At this time, the filling rate of the beads is preferably 50 to 80 vol% of the grinding capacity. The amount of the pigment mixture to be injected is preferably about 20 to 50 vol% of the grinding capacity. Further, the treatment time is preferably from 2 to 50 hours, more preferably from 2 to 25 hours.

Further, in the case of using a roll mill, for example, three kinds of roll mills and two roll mills can be used, and the pigment mixture liquid can be preferably treated while cooling with cooling water or the like.

At this time, the roll interval is preferably 10 μm or less, and the shear force is preferably about 10 ⁸ dyn/sec. Further, the treatment time is preferably from 2 to 50 hours, more preferably from 2 to 25 hours.

- (B) alkali soluble resin

The alkali-soluble resin in the present invention acts as a binder for the (A) colorant, and when the color filter is manufactured, the developer used in the development process step is used, particularly for alkaline imaging. The liquid has a soluble one. Examples thereof include a polymerizable unsaturated monomer having an acidic functional group such as a carboxyl group, a phenolic hydroxyl group or a sulfonic acid, and another copolymerizable unsaturated monomer (hereinafter referred to as "copolymerizable unsaturated monomer"). Copolymer.

The polymerizable unsaturated monomer having a carboxyl group (hereinafter referred to as "carboxy group-containing unsaturated monomer") may, for example, be (meth)acrylic acid, crotonic acid, α-chloroacrylic acid, cinnamic acid or the like. a saturated monocarboxylic acid; an unsaturated dicarboxylic acid such as maleic acid, maleic anhydride, fumaric acid, itaconic acid, itaconic anhydride, citraconic acid, citraconic anhydride, mesaconic acid or the like An anhydrate thereof; a trivalent or higher unsaturated polyvalent carboxylic acid or an anhydride thereof; succinic acid mono [2-(methyl) propylene oxiranyl] ester, phthalic acid mono [2-(methyl) propylene hydride a mono[(meth)acryloxyalkylene] ester of a divalent or higher polyvalent carboxylic acid such as oxyethyl]ester; a terminal group of ω-carboxypolycaprolactone mono(meth)acrylate or the like having a carboxyl group And a mono(meth)acrylate of a polymer of a hydroxyl group.

Among these carboxyl group-containing unsaturated monomers, in particular, (meth)acrylic acid, succinic acid mono [2-(methyl) propylene oxy oxyethyl] ester, ω-carboxy polycaprolactone mono (meth) acrylate Esters are preferred.

The carboxyl group-containing unsaturated monomer may be used alone or in combination of two or more.

Further, examples of the polymerizable unsaturated monomer having a phenolic hydroxyl group include o-hydroxystyrene, m-hydroxystyrene, p-hydroxystyrene, o-hydroxy-α-methylstyrene, and m-hydroxy-α. -methylstyrene, p-hydroxy-α-methylstyrene, N-o-hydroxyphenylmaleimide, N-m-hydroxyphenylmaleimide, N-p-hydroxyphenyl Maleic imine and so on.

These polymerizable unsaturated monomers having a phenolic hydroxyl group may be used alone or in combination of two or more.

Further, examples of the polymerizable unsaturated monomer having a sulfonic acid group include isoprenesulfonic acid and p-styrenesulfonic acid.

These polymerizable unsaturated monomers having a sulfonic acid group may be used alone or in combination of two or more.

Next, examples of the copolymerizable unsaturated monomer include, for example, polystyrene, poly(methyl) methacrylate, poly(methyl) methacrylate, polydecane, and the like, which have a single molecular chain at the end of the polymer chain. Macromonomer of acrylonitrile group (hereinafter, simply referred to as "macromonomer"): N-phenylmaleimide, N-o-hydroxyphenylmaleimide, N-m-hydroxyl Phenylmaleimide, N-p-hydroxyphenylmaleimide, N-o-methylphenylmaleimide, N-m-methylphenylmaleimide, N -p-Methylphenylmaleimide, N-o-methoxyphenylmaleimide, N-m-methoxyphenylmaleimide, N-p-methoxyphenyl N-(substituted) aryl maleimide, such as maleic imine, and N-position substituted maleimide, such as N-cyclohexylmaleimine; styrene, α-methylbenzene Ethylene, o-vinyltoluene, m-vinyltoluene, p-vinyltoluene, p-chlorostyrene, o-methoxystyrene, m-methoxystyrene, p-methoxystyrene O-vinylbenzyl methyl ether, m-vinylbenzyl methyl ether , an aromatic vinyl compound such as p-vinylbenzyl methyl ether, o-vinylbenzyl glycidyl ether, m-vinylbenzyl glycidyl ether, p-vinylbenzyl glycidyl ether; hydrazine, 1-methyl hydrazine Etc.; methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isobutyl (meth) acrylate, second butyl (meth) acrylate, (a Base) butyl acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 2-hydroxy butyl (meth) acrylate Ester, 3-hydroxybutyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, allyl (meth)acrylate, benzyl (meth)acrylate, cyclohexyl (meth)acrylate, Phenyl (meth)acrylate, 2-methoxyethyl (meth)acrylate, 2-phenoxyethyl (meth)acrylate, methoxydiethylene glycol (meth)acrylate, (methyl) Methoxytriethylene glycol acrylate, methoxypropylene glycol (meth)acrylate, methoxydipropylene glycol (meth)acrylate, isobornyl (meth)acrylate, dicyclopentyl (meth)acrylate Diene ester, Unsaturated carboxylic acid ester of 2-hydroxy-3-phenoxypropyl methacrylate, glyceryl (meth) acrylate, etc.; 2-aminoethyl (meth) acrylate, 2-dimethyl methacrylate Amine ethyl ester, 2-aminopropyl (meth)acrylate, 2-dimethylaminopropyl acrylate, 3-aminopropyl (meth)acrylate, 3-dimethylaminopropyl (meth)acrylate, etc. a saturated carboxylic acid aminoalkyl ester; an unsaturated carboxylic acid glycidyl ester such as glycidyl (meth)acrylate; a vinyl carboxylate such as vinyl acetate, vinyl propionate, vinyl butyrate or vinyl benzoate; An unsaturated ether such as vinyl methyl ether, vinyl ethyl ether or allyl glycidyl ether; a vinyl cyanide compound such as (meth)acrylonitrile, α-chloroacrylonitrile or vinylidene cyanide; An unsaturated decylamine such as acrylamide, α-chloropropenylamine or N-2-hydroxyethyl(meth)acrylamide; 1,3-butadiene, isoprene, and chloroprene An aliphatic conjugated diene such as an alkene.

Among these copolymerizable unsaturated monomers, maleimine, 2-hydroxyethyl (meth)acrylate, benzyl (meth)acrylate, and glycerol mono(meth)acrylate are substituted at the N-position. good. Further, in the macromonomer, a polystyrene macromonomer or a poly(methyl) acrylate macromonomer is particularly preferred, and an N-phenyl malazone is substituted for the maleimide at the N-position. The imine and N-cyclohexylmaleimide are particularly preferred.

These copolymerizable unsaturated monomers may be used alone or in combination of two or more.

The alkali-soluble resin which is preferable in the invention is a copolymer of a carboxyl group-containing unsaturated monomer and a copolymerizable unsaturated monomer (hereinafter, simply referred to as "copolymer containing a carboxyl group").

The carboxyl group-containing copolymer is composed of (a) a carboxyl group-containing unsaturated monomer, and (b) a polystyrene macromonomer, a poly(methyl) methacrylate macromonomer, and an N-phenylmaleimide. And at least one selected from the group consisting of N-cyclohexylmaleimide, 2-hydroxyethyl (meth)acrylate, benzyl (meth)acrylate, and glyceryl (meth)acrylate, and (c) according to circumstances Further comprising a copolymer of at least one monomer selected from the group consisting of styrene, α-methylstyrene, methyl (meth)acrylate, allyl (meth)acrylate and phenyl (meth)acrylate (hereinafter, it is referred to as "copolymer (I) containing a carboxyl group"), and particularly, (a) (meth)acrylic acid is contained as an essential component, and succinic acid mono [2-(methyl) is further contained, as the case may be. a carboxyl group-containing unsaturated monomer of propylene oxiranyl ethyl ester and/or ω-carboxy polycaprolactone mono(meth) acrylate, and (b) polystyrene macromonomer, poly(meth)acrylic acid Methyl ester macromonomer, N-phenylmaleimide, N-cyclohexylmaleimide, 2-hydroxyethyl (meth)acrylate, benzyl (meth)acrylate and (meth)acrylic acid glycerin At least one selected from the group, and (c) further containing styrene, α-methylstyrene, methyl (meth)acrylate, allyl (meth)acrylate, and phenyl (meth)acrylate, as the case may be. A copolymer of at least one monomer mixture selected from the group (hereinafter referred to as "carboxyl-containing copolymer (II)" is preferred.

Specific examples of the carboxyl group-containing copolymer (II) include (meth)acrylic acid/benzyl (meth)acrylate/polystyrene macromonomer copolymer, (meth)acrylic acid/benzyl (meth)acrylate/ Poly(methyl) acrylate macromonomer copolymer, (meth)acrylic acid / N-phenyl maleimide / styrene / benzyl (meth) acrylate copolymer, (meth) acrylic / N -phenylmaleimide/α-methylstyrene/benzyl (meth)acrylate, (meth)acrylic acid/N-cyclohexylmaleimide/styrene/benzyl (meth)acrylate Copolymer, (meth)acrylic acid/N-cyclohexylmaleimide/α-methylstyrene/benzyl (meth)acrylate copolymer, (meth)acrylic acid/succinic acid single [2-(A) Base) propylene oxime ethyl ester / N-phenyl maleimide / styrene / allyl (meth) acrylate copolymer, (meth) acrylic acid / succinic acid single [2- (methyl) Propylene oxime ethyl ester / N-phenyl maleimide / styrene / benzyl (meth) acrylate copolymer, (meth) acrylic acid / succinic acid [2-(methyl) propylene oxime Ethyl]ester/N-cyclohexylmaleimide/styrene/allyl (meth)acrylate , (meth)acrylic acid / succinic acid mono [2-(methyl) propylene oxyethyl] ester / N-cyclohexyl maleimide / styrene / benzyl (meth) acrylate copolymer, ( Methyl)acrylic acid/benzyl (meth)acrylate/glycerol mono(meth)acrylate, (meth)acrylic acid/succinic acid mono[2-(methyl)acryloyloxyethyl]ester/(A) Benzyl acrylate/mono(meth)acrylate copolymer, (meth)acrylic acid/2-hydroxyethyl (meth)acrylate copolymer, (meth)acrylic acid/styrene/(meth)acrylic acid 2-Hydroxyethyl ester copolymer, (meth)acrylic acid/2-hydroxyethyl (meth)acrylate/benzyl (meth)acrylate copolymer, (meth)acrylic acid/(meth)acrylic acid 2-hydroxyethyl Ester/phenyl (meth)acrylate copolymer, (meth)acrylic acid/2-hydroxyethyl (meth)acrylate/benzyl (meth)acrylate/polystyrene macromonomer, (methyl) Acrylic acid/2-hydroxyethyl (meth)acrylate/benzyl (meth)acrylate/poly(meth)acrylate macromonomer copolymer, (meth)acrylic acid/(meth)acrylic acid 2-hydroxyethyl Ester/N-phenylmaleimide/styrene/phenyl (meth)acrylate/poly Ethylene macromonomer copolymer, (meth)acrylic acid/2-hydroxyethyl (meth)acrylate/N-phenylmaleimide/styrene/phenyl (meth)acrylate/polymethyl methacrylate Ester macromonomer copolymer, (meth)acrylic acid/N-phenylmaleimide/styrene/benzyl (meth)acrylate/glycerol mono(meth)acrylate, (meth)acrylic acid /ω-carboxypolycaprolactone mono(meth)acrylate/N-phenylmaleimide/styrene/benzyl (meth)acrylate/glycerol mono(meth)acrylate, and the like.

The copolymerization ratio of the carboxyl group-containing unsaturated monomer in the carboxyl group-containing copolymer is preferably from 5 to 50% by weight, more preferably from 10 to 40% by weight. When the copolymerization ratio of the carboxyl group-containing unsaturated monomer is less than 5% by weight, the solubility of the linear composition for forming a coloring layer to the alkaline developing solution tends to decrease, and if it exceeds 50% by weight Further, the solubility in the alkaline developing solution is excessively large, and when the image is imaged by the alkaline developing solution, the colored layer is detached from the substrate and the film on the surface of the colored layer tends to be rough.

The alkali-soluble resin in the present invention is converted into a weight average molecular weight (hereinafter referred to as "Mw") of polystyrene by gel permeation chromatography (GPC, elution solvent: tetrahydrofuran), preferably 3,000 to 300,000. More preferably 3,000 to 100,000.

In addition, the alkali-soluble resin in the present invention is converted into a number average molecular weight (hereinafter referred to as "Mn") of polystyrene by gel permeation chromatography (GPC, elution solvent: tetrahydrofuran), preferably 3,000~ 60,000, more preferably 3,000 to 25,000.

Further, the ratio of Mw to Mn (Mw/Mn) of the alkali-soluble resin in the present invention is preferably from 1 to 5, more preferably from 1 to 4.

By using an alkali-soluble resin having such a specific Mw or Mn, a linear composition for forming a photosensitive layer excellent in color development can be obtained, and a coloring layer each having a sharp pattern edge can be formed. Further, it is difficult to cause residue, texture contamination, film residue, and the like on the substrate and the light shielding layer of the unexposed portion during development.

In the present invention, the alkali-soluble resin may be used alone or in combination of two or more.

The amount of the alkali-soluble resin used in the present invention is preferably from 10 to 1,000 parts by weight, more preferably from 20 to 500 parts by weight, per 100 parts by weight of the (A) colorant. When the amount of the alkali-soluble resin is less than 10 parts by weight, for example, the alkali developability is lowered, and texture contamination and film residue may occur on the substrate or the light-shielding layer of the unexposed portion, and if it exceeds 1,000 parts by weight, the relative amount is relatively The concentration of the coloring agent is lowered, so that it is difficult to achieve the target color density as a film.

-(C) Polyfunctional monomer -

The polyfunctional monomer in the present invention is a monomer having two or more polymerizable unsaturated bonds in the molecule.

Examples of the polyfunctional monomer include di(meth)acrylates of alkylene glycols such as ethylene glycol and propylene glycol; and dialkyl alkyl glycols such as polyethylene glycol and polypropylene glycol. (meth) acrylate; poly(meth) acrylate of a trivalent or higher polyhydric alcohol such as glycerin, trimethylolpropane, pentaerythritol or dipentaerythritol; and a dicarboxylic acid modified product thereof; polyester, epoxy resin, amine a low (meth) acrylate such as a urethane resin, an alkyd resin, a polyoxyxylene resin or a spiro resin; a terminal hydroxy poly-1,3-butadiene, a two-terminal hydroxypolyisoprene, A di(meth)acrylate and a tris[2-(methyl)propenyloxyethyl]phosphate of two terminal hydroxylated polymers, such as a terminal hydroxypolycaprolactone.

Among these polyfunctional monomers, a poly(meth) acrylate having a trivalent or higher polyhydric alcohol and a dicarboxylic acid modified product thereof, specifically, trimethylolpropane tris(meth)acrylate, Pentaerythritol tris(meth)acrylate, pentaerythritol tetra(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, etc., particularly, trishydroxymethyl triacrylate Propane ester, pentaerythritol triacrylate and dipentaerythritol hexaacrylate are high in coloring layer, excellent in smoothness of the surface of the colored layer, and difficult to cause texture contamination and film residue on the substrate of the unexposed portion and the light shielding layer. It is better.

These polyfunctional monomers may be used alone or in combination of two or more.

The amount of the polyfunctional monomer used in the present invention is preferably 5 to 500 parts by weight, more preferably 20 to 300 parts by weight, per 100 parts by weight of the (B) alkali-soluble resin. When the amount of the polyfunctional monomer is less than 5 parts by weight, the strength and surface smoothness of the colored layer tend to be lowered. On the other hand, if it exceeds 500 parts by weight, for example, the alkali developability is lowered, and the substrate of the unexposed portion is lowered. There is a tendency for texture contamination, film residue, and the like to occur on the upper or light shielding layer.

In the present invention, the polyfunctional monomer may also be used in combination with a monofunctional monomer having one polymerizable unsaturated bond in the molecule.

The monofunctional monomer may, for example, be a carboxyl group-containing unsaturated monomer, a copolymerizable unsaturated monomer, and N-vinyl succinimide, N-vinylpyrrolidone exemplified as described above for the (B) alkali-soluble resin. , N-vinylimine, N-vinyl-2-piperidone, N-vinyl-ε-caprolactone, N-vinylpyrrole, N-vinylpyrrolidine, N-vinylimidazole , N-vinylimidazolidine, N-vinyl anthracene, N-vinylindan, N-vinylbenzimidazole, N-vinylcarbazole, N-vinylpiperidine, N-vinylpiperidone , N-vinylmorpholine, N-vinyl phenanthrene N-vinyl derivatives such as N-(methyl) propylene morpholine, and commercially available products under the trade names M-5300, M-5400, and M-5600 (above, East Asia Synthetic Co., Ltd.) .

These monofunctional monomers may be used alone or in combination of two or more. The use ratio of the monofunctional monomer is preferably 90% by weight or less, and more preferably 50% by weight or less based on the total of the polyfunctional monomer and the monofunctional monomer. When the ratio of use of the monofunctional monomer exceeds 90% by weight, the strength of the colored layer and the surface smoothness tend to be lowered.

-(D) Photopolymerization Initiator -

The photopolymerization initiator in the present invention is exposed to visible light, ultraviolet light, far ultraviolet light, electron beam, X-ray or the like, and the polyfunctional monomer (C) and optionally the monofunctional monomer may be used. The compound that started to polymerize.

Examples of such a photopolymerization initiator include an acetophenone-based compound, a bisimidazole-based compound, a triazole-based compound, a benzoin-based compound, a benzophenone-based compound, an α-diketone-based compound, a polynuclear ruthenium-based compound, and an anthracene. Tons of ketone compounds, diazo compounds, and the like.

In the present invention, the photopolymerization initiator may be used alone or in combination of two or more. The photopolymerization initiator in the invention is preferably an acetophenone compound, a bisimidazole compound and three At least one of the group of the compound is selected.

The amount of the photopolymerization initiator to be used in the invention is preferably from 0.01 to 80 parts by weight, more preferably from 1 to 100 parts by weight based on 100 parts by weight of the (C) polyfunctional monomer or the monofunctional monomer. 60 parts by weight. When the amount of the photopolymerization initiator used is less than 0.01 part by weight, the hardening by exposure is insufficient, and it may be difficult to obtain a color filter in which the colored layer pattern is arranged in a specified order, and if it exceeds 80 parts by weight, The colored layer formed tends to be easily detached from the substrate during development.

In a preferred photopolymerization initiator of the present invention, specific examples of the acetophenone-based compound include 2-hydroxy-2-methyl-1-phenylpropan-1-one and 2-methyl-1-[4-( Methylthio)phenyl]-2-morpholinpropan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinylphenyl)butan-1-one, 1-hydroxyl Cyclohexyl-phenyl ketone, 2,2-dimethoxy-1,2-diphenylethane-1-one, 1,2-octanedione-1-[4-(phenylthio)phenyl ]-2-(O-benzidine) and the like.

Among these acetophenone compounds, 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinan-1-one, 2-benzyl-2-dimethylamino 1-(4-morpholinylphenyl)butan-1-one, 1,2-octanedione-1-[4-(phenylthio)phenyl]-2-(O-benzamide) It is better.

The acetaminophen compound may be used alone or in combination of two or more.

In the present invention, the amount of the phthalic acid-based compound to be used as the photopolymerization initiator is preferably 0.01% based on 100 parts by weight of the total of the (C) polyfunctional monomer or the monofunctional monomer. 80 parts by weight, more preferably 1 to 60 parts by weight, still more preferably 1 to 30 parts by weight. When the amount of the acetophenone compound is less than 0.01 part by weight, the hardening by exposure is insufficient, and it is difficult to obtain a color filter in which the colored layer pattern is arranged in a predetermined order, and if it exceeds 80 parts by weight, The formed color layer tends to be easily detached from the substrate during development.

Further, specific examples of the bisimidazole compound include 2,2'-bis(2chlorophenyl)-4,4',5,5'-tetrakis(4-ethoxycarbonylphenyl)-1,2'. -biimidazole, 2,2'-bis(2-bromophenyl)-4,4',5,5'-tetrakis(4-ethoxycarbonylphenyl)-1,2'-bisimidazole, 2,2 '-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2,2'-bis(2,4-dichlorophenyl)- 4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2,2'-bis(2,4,6-trichlorophenyl)-4,4',5,5' -tetraphenyl-1,2'-bisimidazole, 2,2'-bis(2-bromophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2 , 2'-bis(2,4-dibromophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2,2'-(2,4,6- Tribromophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole and the like.

Among these biimidazole compounds, 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2,2'- Bis(2,4-dichlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2,2'-bis(2,4,6-trichlorobenzene Methyl-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, etc., and especially 2,2'-bis(2,4-dichlorophenyl)-4, 4',5,5'-tetraphenyl-1,2'-diimidazole is preferred.

The diimidazole-based compound is excellent in solubility in a solvent, does not cause foreign matter such as undissolved matter or precipitates, and has high sensitivity, and can sufficiently perform a hardening reaction by exposure with a small amount of energy, and has high contrast and is not exposed in an unexposed portion. The hardening reaction is generated, so that the film after exposure can clearly distinguish the hardened portion which is insoluble to the developing liquid, and the unhardened portion which has high solubility to the developing liquid, and therefore, the coloring layer pattern without the spin down can be formed as Specifies a high-definition color filter that is configured in sequence. These diimidazole-based compounds may be used alone or in combination of two or more.

In the present invention, the amount of the bisimazole-based compound used as the photopolymerization initiator is preferably 0.01 to 40 based on 100 parts by weight of the total of the (C) polyfunctional monomer or the monofunctional monomer. The part by weight is more preferably 1 to 30 parts by weight, and still more preferably 1 to 20% by weight. When the amount of the diimidazole-based compound used is less than 0.01 part by weight, the hardening by exposure is insufficient, and it may be difficult to obtain a color filter having a colored layer pattern arranged in a specified order, and if it exceeds 40 parts by weight, In the case of the image, the colored layer formed tends to fall off from the substrate and cause a rough film on the surface of the colored layer.

In the present invention, when a bisimidazole compound is used as the photopolymerization initiator, the following hydrogen donor is used in combination, and it is preferable to further improve the sensitivity.

The term "hydrogen donor" as used herein means a compound which can supply a hydrogen atom by exposing a radical generated by a bisimidazole compound.

The hydrogen donor in the present invention is preferably a thiol compound or an amine compound as defined below.

The thiol compound is a compound having a benzene ring or a heterocyclic ring as a nucleus and having one or more, preferably 1 to 3, more preferably 1 to 2, hydrogen thio groups directly bonded to the nucleus ( Hereinafter, it is referred to as "thiol-based hydrogen donor").

The amine-based compound has a benzene ring or a heterocyclic ring as a nucleus, and has one or more, preferably 1 to 3, more preferably 1 to 2 compounds directly bonded to the amine group of the nucleus (hereinafter, It is called "amine-based hydrogen donor").

In addition, such hydrogen donors may have both a hydrogenthio group and an amine group.

Hereinafter, the hydrogen donors will be described in more detail.

The thiol-based hydrogen donor may have one or more benzene rings or heterocyclic rings, and may have both a benzene ring and a hetero ring. When two or more such rings are present, a condensed ring may or may not be formed.

Further, when the thiol-based hydrogen donor has two or more thiol groups, the remaining one or more thiol groups may be substituted with an alkyl group, an aralkyl group or an aryl group as long as at least one free thiol group remains. Further, as long as at least one free hydrogenthio group remains, the two sulfur atoms are structural units bonded through a divalent organic group such as an alkyl group, or the two sulfur atoms have a structural unit bonded in the form of a disulfide.

Further, the thiol-based hydrogen donor may be substituted at a site other than the thiol group, or may be substituted with a carboxyl group, a (substituted) alkoxycarbonyl group, a (substituted) phenoxycarbonyl group, a nitrile group or the like.

Specific examples of such a thiol-based hydrogen donor include 2-hydrothiobenzothiazole and 2-hydrothiobenzophenone. Oxazole, 2-hydrothiobenzimidazole, 2,5-dihydrothio-1,3,4-thiadiazole, 2-hydrothio-2,5-dimethylaminopyridine, and the like.

Among these thiol-based hydrogen donors, 2-hydrothiobenzothiazole and 2-hydrothiobenzophenone Preferably, azole or the like is preferred, and 2-hydrothiobenzothiazole is particularly preferred.

The amine-based hydrogen donor may have one or more benzene rings or heterocyclic rings in the molecule, and may have both a benzene ring and a hetero ring. When two or more such rings are present, a condensed ring may or may not be formed.

Further, the amine-based hydrogen donor may have one or more amine groups which may be substituted by an alkyl group or a substituted alkyl group, and may be a carboxyl group, a (substituted) alkoxycarbonyl group or a (substituted) benzene in a place other than the amine group. An oxycarbonyl group, a nitrile group or the like is substituted.

Specific examples of such an amine-based hydrogen donor include 4,4'-bis(dimethylamino)benzophenone, 4,4'-bis(diethylamino)benzophenone, and 4-diethylamino group. Ethylbenzene, 4-dimethylaminopropenylbenzene, ethyl-4-dimethylaminobenzoate, 4-dimethylaminobenzoic acid, 4-dimethylaminobenzonitrile, and the like.

Among these amine-based hydrogen donors, 4,4'-bis(dimethylamino)benzophenone and 4,4'-bis(diethylamino)benzophenone are preferred, particularly 4,4. '-Bis(diethylamino)benzophenone is preferred.

Further, when the amine-based hydrogen donor is a photopolymerization initiator other than the bisimidazole compound, it also functions as a sensitizer.

In the present invention, the hydrogen donor may be used alone or in combination of two or more. In particular, the combination of using one or more thiol-based hydrogen donors and one or more of the amine-based hydrogen donors is highly sensitive, and the formed coloring layer is difficult to be detached from the substrate during development, and the strength of the colored layer is also high. It is better.

Specific examples of the preferable combination of the thiol-based hydrogen donor and the amine-based hydrogen donor include 2-hydrothiobenzothiazole/4,4'-bis(dimethylamino)benzophenone and 2-hydrogen sulfur. Benzothiazole/4,4'-bis(diethylamino)benzophenone, 2-hydrothiobenzoate Oxazole/4,4'-bis(dimethylamino)benzophenone, 2-hydrothiobenzoate Oxazole/4,4'-bis(diethylamino)benzophenone. A more preferred combination is 2-hydrothiobenzothiazole/4,4'-bis(diethylamino)benzophenone, 2-hydrothiobenzoate A particularly preferred combination is 2-hydrothiobenzothiazole/4,4'-bis(diethylamino)benzophenone.

In the combination of the thiol-based hydrogen donor and the amine-based hydrogen donor, the weight ratio of the thiol-based hydrogen donor to the amine-based hydrogen donor is preferably 1:1 to 1:4, more preferably 1:1. 1:3.

In the present invention, the amount of the hydrogen donor and the bisimidazole compound to be used in combination is preferably 0.01 to 40 by weight based on 100 parts by weight of the total of the (C) polyfunctional monomer or the monofunctional monomer. It is preferably 1 to 30 parts by weight, particularly preferably 1 to 20 parts by weight. When the amount of the hydrogen donor used is less than 0.01 part by weight, the effect of improving the sensitivity tends to be lowered. On the other hand, if it exceeds 40 parts by weight, the colored layer formed tends to fall off from the substrate during development.

Again, the aforementioned three Specific examples of the compound can be exemplified by 2,4,6-tris(trichloromethyl)-s-three. 2-methyl-4,6-bis(trichloromethyl)-s-three ,2-[2-(5-methylfuran-2-yl)vinyl]-4,6-bis(trichloromethyl)-s-three ,2-[2-(furan-2-yl)vinyl]-4,6-bis(trichloromethyl)-s-three ,2-[2-(4-diethylamino-2-methylphenyl)vinyl]-4,6-bis(trichloromethyl)-s-three ,2-[2-(3,4-Dimethoxyphenyl)vinyl]-4,6-bis(trichloromethyl)-s-three , 2-(4-methoxyphenyl) 4,6-bis(trichloromethyl)-s-three , 2-(4-ethoxystyryl)-4,6-bis(trichloromethyl)-s-three 2-(4-n-butoxyphenyl)-4,6-bis(trichloromethyl)-s-three Three of the halomethyl groups a compound.

These three Among the compounds, especially 2-[2-(3,4-dimethoxyphenyl)vinyl]-4,6-bis(trichloromethyl)-s-three It is better.

The aforementioned three The compound may be used alone or in combination of two or more.

In the present invention, three are used The amount of the compound to be used as the photopolymerization initiator is preferably 0.01 to 40 parts by weight, more preferably 1 to 1 part by weight based on 100 parts by weight of the total of the (C) polyfunctional monomer or the monofunctional monomer. 30 parts by weight, more preferably 1 to 20 parts by weight, and if the amount of the triazole-based compound used is less than 0.01 part by weight, the hardening by exposure is insufficient, and it may be difficult to obtain a colored layer pattern in a color filter arranged in a specified order. On the other hand, when the light sheet exceeds 40 parts by weight, the formed color layer tends to be easily peeled off from the substrate during development.

- (E) Solvent -

The solvent in the present invention is a mixed solvent containing dipropylene glycol methyl ether acetate as an essential component.

The content of the dipropylene glycol methyl ether ester in the solvent is from 3 to 8.5% by weight, preferably from 3 to 7.5% by weight, particularly preferably from 3 to 7% by weight. When the content ratio of the dipropylene glycol methyl ether acetate is less than 3% by weight, the effect of suppressing the dry matter of the linear composition for forming a colored layer and the sudden boiling pores or the like is lowered, and if it exceeds 8.5% by weight, It is feared that the solvency as a solvent is lowered and the insoluble matter is eluted.

The solvent in the present invention is a solvent other than dipropylene glycol methyl ether acetate containing 91.5 to 97% by weight, preferably 92.5 to 97% by weight, particularly preferably 93 to 97% by weight (hereinafter referred to as "other solvent"). .

The other solvent may have an appropriate volatility as long as the components (A) to (D) constituting the linear composition for forming a coloring layer and the additive component described later are dispersed or dissolved, and do not react with such components. Although it can be suitably selected and used, it is desirable that the boiling point is less than 150 ° C, preferably 130 ° C or more and less than 150 ° C (hereinafter referred to as "low boiling point solvent"). The "boiling point" in the present invention means a value in an atmospheric pressure.

Specific examples of the low boiling point solvent include propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monomethyl ether acetate, 2-heptanone, n-butyl acetate, isobutyl acetate, isoamyl acetate, ethyl butyrate, and butyl. N-propyl acrylate, isopropyl butyrate, ethyl pyruvate, and the like.

Among these low boiling solvents, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol methyl ether acetate, 2-heptanone, isoamyl acetate, ethyl pyruvate, etc. are preferred, especially propylene glycol monomethyl ether, propylene glycol single Ethyl ether and propylene glycol methyl ether acetate are preferred.

These low-boiling point solvents may be used alone or in combination of two or more.

The content of the low boiling point solvent in the mixed solvent (E) is preferably from 30 to 70% by weight, more preferably from 50 to 70% by weight, particularly preferably from 50 to 65% by weight. When the content of the low-boiling solvent is less than 30% by weight, adhesion may occur, and the heating time may become long to cause a decrease in productivity. On the other hand, if it exceeds 70% by weight, the linear composition of the sensitive radiation for forming a colored layer may be dried. The inhibitory effect of the substance is insufficient.

In the present invention, the mixed solvent (E) desirably contains a solvent having a low boiling point and a solvent having a boiling point of 150 ° C or more and less than 180 ° C, preferably 155 ° C or more and less than 180 ° C (hereinafter referred to as "medium boiling point solvent"). As other solvents.

Specific examples of the medium boiling point solvent include ethylene glycol mono-n-butyl ether, ethylene glycol ethyl ether acetate, propylene glycol diethyl ether acetate, 3-methoxybutyl acetate, diethylene glycol dimethyl ether, and diethylene glycol. Methyl ether, cyclohexanone, ethyl 3-ethoxypropionate, n-butyl butyrate, methyl acetate methyl acetate, and the like.

Among these medium boiling solvents, ethylene glycol mono-n-butyl ether, ethylene glycol ethyl ether acetate, propylene glycol diethyl ether acetate, 3-methoxybutyl acetate, diethylene glycol dimethyl ether, diethylene glycol Methyl ether, cyclohexanone, ethyl 3-ethoxypropionate, etc., particularly, propylene glycol ethyl ether acetate, 3-methoxybutyl acetate, diethylene glycol dimethyl ether, diethylene The alcohol methyl ether, cyclohexanone or ethyl 3-ethoxypropionate is preferred.

The above-mentioned medium boiling point solvent may be used alone or in combination of two or more.

The content of the boiling point solvent in the solvent is preferably from 20 to 60% by weight; more preferably from 20 to 50% by weight, particularly preferably from 25 to 45% by weight. When the content ratio of the medium boiling point solvent is less than 20% by weight, the dried material of the linear composition for forming a colored layer of the colored layer tends to occur. On the other hand, if it exceeds 60% by weight, adhesion may occur and the heating time may change. Long resulting in reduced productivity.

Furthermore, in the present invention, the mixed solvent (E) is each of the above solvents and further contains a solvent having a boiling point of 180 ° C or higher (except for dipropylene glycol methyl ether acetate) (hereinafter referred to as "high boiling point solvent"). .

Specific examples of the high boiling point solvent include benzyl ether, dihexyl ether, acetone acetone, isophorone, hexanoic acid, citric acid, 1-octanol, 1-nonanol, benzyl alcohol, benzyl acetate, and benzoic acid. Ethyl ester, diethyl oxalate, diethyl maleate, γ-butyrolactone, ethyl carbonate, propyl carbonate, ethylene glycol monophenyl ether acetate, and the like.

The above-mentioned high boiling point solvent may be used alone or in combination of two or more.

More specifically, the content ratio of each solvent in the solvent of the present invention is preferably from 3 to 8.5% by weight of dipropylene glycol methyl ether acetate, from 40 to 70% by weight of the solvent having a low boiling point, and from 20 to 60 by the solvent of the medium boiling point. % by weight, high boiling point solvent is 20% by weight or less, more preferably dipropylene glycol methyl ether acetate is 3 to 7.5% by weight, low boiling point solvent is 50 to 70% by weight, medium boiling point solvent is 20 to 50% by weight, high boiling point The solvent is 20% by weight or less, particularly preferably 3 to 7% by weight of dipropylene glycol methyl ether acetate, 50 to 65% by weight of a low boiling point solvent, 25 to 45% by weight of a medium boiling point solvent, and 20% by weight of a high boiling point solvent. the following. By using such a mixed solvent, the occurrence of dry matter, boiling water, and the like of the linear composition for sensitive layer formation of the colored layer can be remarkably suppressed, adhesion does not occur, and heating time becomes long, productivity is lowered, and no insolubilization is caused. When the material is precipitated, a linear composition of a sensitive radiation for forming a color layer can be obtained.

The total amount of the solvent used in the linear composition for forming a coloring layer of the colored layer of the present invention is not particularly limited, but the solid form of the solvent from which the composition is removed is determined from the viewpoints of coatability and safety of the obtained composition. The concentration of the component is preferably from 5 to 50% by weight, and particularly preferably from 10 to 40% by weight.

-Other additives -

The linear composition for forming a coloring layer for coloring of the present invention has the above components (A) to (E) as essential components, but may contain other additives as necessary.

Examples of the other additives include a filler such as glass or alumina; a polymer compound such as polyvinyl alcohol or poly(fluoroalkyl acrylate); a nonionic surfactant, a cationic surfactant, and an anionic system. Surfactant such as surfactant; vinyl trimethoxy decane, vinyl triethoxy decane, vinyl tris(2-methoxyethoxy) decane, N-(2-aminoethyl)-3- Aminopropylmethyldimethoxydecane, N-(2-aminoethyl)-3-aminopropyltrimethoxydecane, 3-aminopropyltriethoxydecane, 3-glycidoxypropyltrimethyl Oxydecane, 3-glycidoxypropylmethyldimethoxydecane, 2-(3,4-epoxycyclohexyl)ethyltrimethoxydecane, 3-chloropropylmethyldimethoxydecane , a dense adhesion promoter such as 3-chloropropyltrimethoxydecane, 3-methylpropenyloxypropyltrimethoxydecane, 3-hydrothiopropyltrimethoxydecane; 2,2-thiobis( An antioxidant such as 4-methyl-6-tert-butylphenol) or 2,6-di-tert-butylphenol; 2-(3-tert-butyl-5-methyl-2-hydroxyphenyl) An ultraviolet absorber such as -5-chlorobenzotriazole or an alkoxybenzophenone; an anti-agglomerating agent such as sodium polyacrylate.

Method for forming color filter

Next, a method of forming the color filter of the present invention using the linear composition for forming a photosensitive layer for coloring of the present invention (hereinafter simply referred to as "the composition for forming a colored layer") will be described.

The method of forming the color filter of the present invention includes at least the following steps (1) to (4).

(1) A step of forming a coating film of a composition for forming a color layer on a substrate.

(2) a step of exposing at least a part of the aforementioned coating film.

(3) A step of developing a film after exposure.

(4) Heat treatment of the coating film after development (hereinafter referred to as "post-baking" step).

Hereinafter, the steps will be described in order.

- (1) Step -

First, a light-shielding layer is formed on the surface of the substrate as needed to form a pixel portion, and a composition for forming a colored layer is applied onto the substrate, and then pre-baked under reduced pressure (hereinafter , referred to as "vacuum baking"), the solvent is evaporated to form a coating film.

The substrate used in this step may, for example, be ring-opening polymerization of glass, ruthenium, polycarbonate, polyester, aromatic polyamine, polyamidoximine, polyimine, polyether oxime, and cyclic olefin. And its hydride and so on.

Further, as the substrate, an appropriate pretreatment such as a drug treatment such as a decane coupling agent, a plasma treatment, ion plating, sputtering, a gas phase reaction method, or vacuum deposition may be applied.

The method of applying the composition for forming a colored layer to the substrate is not particularly limited, but a method using a slit nozzle such as a slit/spin coating method or a spin coating method (hereinafter referred to as “narrow” The slit nozzle coating method" is preferred.

The solid content of the color layer forming composition used in the slit nozzle coating method is preferably 10 to 20% by weight, particularly preferably 13 to 18% by weight.

The coating conditions in the slit nozzle coating method vary depending on the slit/spin coating method, the spin-free coating method, the size of the coated substrate, and the like, and are, for example, coated by a spin coating method. When the glass substrate of the fifth generation (1,100 mm × 1,250 mm) is used, the discharge amount of the color layer forming composition by the slit nozzle is preferably 500 to 2,000 μl/sec, preferably 800 to 1,500 μl. /second. Further, the coating speed is preferably from 500 to 1,500 mm/sec, more preferably from 700 to 1,200 m/sec.

The vacuum baking condition is preferably a vacuum of 0.1 to 1.0 torr, more preferably about 0.2 to 0.5 torr, a temperature of preferably 60 to 120 ° C, more preferably about 70 to 110 ° C, and a better baking time. It is 1 to 5 minutes, more preferably 2 to 4 minutes.

The film thickness formed in this step is preferably 0.1 to 10 μm, more preferably 0.2 to 8.0 μm, and particularly preferably 0.2 to 6.0 μm, in terms of film thickness after solvent removal.

- (2) Step -

Thereafter, at least a portion of the formed coating film is exposed. When a part of the coating film is exposed, it is usually exposed through a mask having an appropriate pattern.

For the radiation to be used for the exposure, for example, visible light, ultraviolet light, far ultraviolet light, electron beam, X-ray or the like can be used, and radiation having a wavelength of 190 to 450 nm is preferable.

The exposure amount of the radiation is preferably about 10 to 10,000 J/m ² .

- (3) Step -

Thereafter, development was carried out using a developing solution, and the unexposed portion of the coating film was dissolved and removed.

The aforementioned developing solution is, for example, sodium carbonate, sodium hydroxide, potassium hydroxide, tetramethylammonium hydroxide, choline, 1,8-diguanidine-[5.4.0]-7-undecene, 1, An alkaline developing solution composed of an aqueous solution of 5-diguanidine bicyclo-[4.3.0]-5-decene or the like is preferred.

In the alkaline developing solution, for example, a water-soluble organic solvent such as methanol or ethanol, a surfactant, or the like may be added in an appropriate amount. After alkaline development, it is preferably washed with water.

The development method may be a suitable method such as a leaching development method, a spray imaging method, an immersion imaging method, or a paddle (disintegration) development method.

The development condition is preferably about 5 to 300 seconds at normal temperature.

- (4) Step -

Thereafter, via post-baking, a colored layer can be formed on the substrate.

The post-baking conditions are preferably about 20 to 40 minutes at 180 to 230 °C.

In the method of forming a color filter of the present invention, the steps (1) to (4) are repeated using a composition for forming each colored layer in which a red, green or blue pigment is dispersed, and a red paint is formed on the same substrate. The prime pattern, the green pixel pattern, and the blue pixel pattern form a color layer of the three primary colors of red, green, and blue on the substrate. However, in the present invention, the order in which the pixel patterns of the respective colors are formed is not particularly limited.

The film thickness of the pixel formed by such treatment is preferably 0.5 to 5.0 μm, more preferably 1.5 to 3.0 μm.

The linear composition for forming a coloring layer for coloring layer of the present invention contains (A) a coloring agent, (B) an alkali-soluble resin, (C) a polyfunctional monomer, (D) a photopolymerization initiator, and (E) a mixed solvent. Further, the (E) mixed solvent contains 3 to 8.5% by weight of dipropylene glycol methyl ether acetate, and the following particularly preferred compositions are the following (1) to (9).

(1) A linear composition for forming a coloring layer for a coloring layer, wherein the component (B) is a carboxyl group-containing copolymer (II), and the component (D) is an acetophenone compound, a bisimidazole compound, and At least one of the group of the compound is selected.

(2) The linear composition for forming a coloring layer for coloring layer according to (1) above, wherein the component (B) is a copolymer containing a carboxyl group (II), and the component of the component (D) is a 2-ethylbenzene compound. Methyl-1-[4-(methylthio)phenyl]-2-morpholinone-1, 2-benzyl-2-dimethylamino-1-(4-morpholinylphenyl)butanone- At least one selected from the group consisting of 1 and 1,2-octanedione-1-[4-(phenylthio)phenyl]-2-(O-benzamide), the bisimazole system of the component (D) The compound contains 2,2'-bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole, 2,2'-bis (2,4- Dichlorophenyl)-4,4',5,5'-tetraphenyl-1,2'-bisimidazole and 2,2'-bis(2,4,6-trichlorophenyl)-4,4 Select at least one of the group of ',5,5'-tetraphenyl-1,2'-bisimidazole, and three of (D) The compound is 2-[2-(3,4-dimethoxyphenyl)vinyl]-4,6-bis(trichloromethyl)-s-three .

(3) The linear composition for forming a coloring layer for coloring layer according to (1) or (2) above, wherein the carboxyl group-containing copolymer (II) in the component (B) contains (meth)acrylic acid/(methyl) Benzyl acrylate/polystyrene macromonomer copolymer, (meth)acrylic acid/benzyl (meth)acrylate/poly(meth)acrylate macromonomer copolymer, (meth)acrylic acid/N-benzene Kamalimide/styrene/benzyl (meth)acrylate copolymer, (meth)acrylic acid/N-cyclohexylmaleimide/styrene/benzyl (meth)acrylate copolymer, ( Methyl)acrylic acid/succinic acid mono[2-(methyl)acryloyloxyethyl]ester/N-phenylmaleimide/styrene/allyl (meth)acrylate copolymer, (methyl Acrylic acid/succinic acid mono [2-(meth)acrylic acid oxyethyl] ester / N-phenyl maleimide / styrene / benzyl (meth) acrylate copolymer, (meth) acrylic / amber Acid mono [2-(methyl) propylene oxiranyl] ester / N-cyclohexyl maleimide / styrene / allyl (meth) acrylate copolymer, (meth) acrylic acid / succinic acid single [2-(Methyl) propylene oxiranyl] ester / N-cyclohexylmaleimide / styrene / (A Benzyl acrylate copolymer, (meth)acrylic acid / benzyl (meth) acrylate / glycerol mono(meth) acrylate, (meth) acrylate / succinic acid [2-(methyl) propylene oxime Oxyethyl]ester/benzyl (meth)acrylate/glycerol mono(meth)acrylate, 2-hydroxyethyl (meth)acrylate/(meth)acrylate, (meth)acrylic acid/ Styrene/2-hydroxyethyl (meth)acrylate copolymer, (meth)acrylic acid/2-hydroxyethyl (meth)acrylate/benzyl (meth)acrylate copolymer, (meth)acrylic acid/( 2-hydroxyethyl methacrylate / phenyl (meth) acrylate copolymer, (meth) acrylate / 2-hydroxyethyl (meth) acrylate / benzyl (meth) acrylate / polystyrene Copolymer, (meth)acrylic acid/(2-hydroxyethyl)(meth)acrylate/benzyl (meth)acrylate/poly(meth)acrylate macromonomer copolymer and (meth)acrylic acid/N At least one selected from the group consisting of phenylmaleimide/styrene/benzyl (meth)acrylate/mono(meth)acrylate copolymer.

(4) A linear composition for forming a photosensitive layer for coloring layer according to (1), (2) or (3) above, wherein the component (C) contains trimethylolpropane triacrylate, pentaerythritol triacrylate and hexaacrylic acid. At least one selected from the group consisting of dipentaerythritol esters.

(5) The linear composition for forming a coloring layer for coloring layer according to (1), (2), (3) or (4) above, wherein the component (A) contains an organic pigment and/or carbon black.

(6) The linear composition for forming a photosensitive layer for coloring layer according to (1), (2), (3), (4) or (5) above, wherein the component (E) has a low boiling point of 40 to 70% by weight. Solvent.

(7) The linear composition for forming a coloring layer for coloring layer according to (6) above, wherein at least one selected from the group consisting of propylene glycol monomethyl ether, propylene glycol monoethyl ether, and propylene glycol monomethyl ether acetate is used.

(8) The linear composition for forming a coloring layer for coloring layer according to (6) or (7) above, wherein the component (E) further contains 20 to 60% by weight of a solvent of a boiling point.

(9) The linear composition for forming a coloring layer according to (8) above, wherein the medium boiling point solvent is propylene glycol monoethyl ether acetate, 3-methoxybutyl acetate, diethylene glycol dimethyl ether, At least one selected from the group consisting of ethylene glycol methyl ether, cyclohexanone, and ethyl 3-ethoxypropionate.

Further, the preferred color filter of the present invention (10) is provided with the above (1), (2), (3), (4), (5), (6), (7), (8) or (9) The color layer forms a pixel and/or a black matrix formed by the linear composition of the sensitive radiation.

Further, a preferred color liquid crystal display panel of the present invention is (11) comprising the color filter of the above (10).

As described above, the linear composition for forming a coloring layer for coloring the coloring matter of the present invention has a solvent resolubility with a dry matter and can suppress the occurrence of a sudden boiling hole, and is particularly suitable for forming a color filter by using a slit nozzle coating method. sheet.

Example

Hereinafter, the present invention will be described more specifically by way of examples. However, the invention is not limited to the following examples.

Example 1

15 parts by weight of a mixture of CI Pigment Red 254/CI Pigment Red 177=80/20 (weight ratio) as the colored layer of (A), and 4 parts by weight of Disperbyk-2001 as a dispersing agent (converted into solid components), as (B) Alkali-soluble resin methacrylic acid/N-phenylmaleimide/styrene/benzyl methacrylate copolymer (copolymerization weight ratio=20/30/20/30, Mw=9,500, Mn=5,000) 6 parts by weight and 75 parts by weight of propylene glycol methyl ether acetate as a solvent were treated by a bead mill to prepare a pigment dispersion liquid (R1) (total 100 parts by weight).

Next, 100 parts by weight of the pigment dispersion (R1), as (B) alkali-soluble resin, methacrylic acid/succinic acid mono(2-methylpropenyloxyethyl) ester/N-phenylmaleimide / styrene / benzyl methacrylate copolymer (copolymerization weight ratio = 25/10/30 / 20 / 15, Mw = 12,000, Mn = 6,500) 5 parts by weight, as (C) polyfunctional monomer of hexaacrylic acid 10 parts by weight of dipentaerythritol ester, 5 parts by weight of 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinone-1 as (D) photopolymerization initiator, and as (E) 12.5 parts by weight of a mixed solvent of dipropylene glycol methyl ether acetate (5% by weight of a total mixed solvent), 75 parts by weight of propylene glycol methyl ether acetate (combined with the amount in (R1) as 60% by weight of the total mixed solvent), 75 parts by weight of 3-methoxybutyl acetate (30% by weight of the total mixed solvent) and 12.5 parts by weight of cyclohexanone (5% by weight of the total mixed solvent) were mixed to prepare a composition for forming a colored layer (R1-1) ). The solvent in the composition for forming a colored layer (R1-1) is a solvent containing the pigment dispersion liquid (R1), and the composition for forming each colored layer is also the same.

The obtained composition for forming a color layer (R1-1) was evaluated according to the procedure described below. The evaluation results are shown in Table 1.

Evaluation of dissolution and resolubility of dried materials

The composition for forming a colored layer (R1-1) was applied onto a glass substrate, and air-dried at 23 ° C and a humidity of 50% for 30 minutes. Thereafter, the glass substrate to which the dried coating film was attached was immersed in propylene glycol monomethyl ether acetate for 10 minutes, and evaluated in the following three stages in accordance with the re-dissolved state of the dried coating film.

○: The dried coating film during immersion was completely dissolved.

△: A part of the dried coating film remained even after immersion for 10 minutes.

×: The dried coating film was almost completely or completely insoluble even after immersion for 10 minutes.

Evaluation of the sudden boiling hole

A soda glass substrate (300 mm × 400 mm) having a SiO ₂ film on the surface which was prevented from eluting sodium ions was applied to the colored layer forming composition (R1-1) by a spin coater, and then vacuum baked at 23 ° C until When the degree of vacuum reached 0.3 torr, a coating film having a film thickness of 2.5 μm was formed.

Thereafter, the obtained substrate was observed with an optical microscope, and the number of the boiling holes generated in any region of the coating film of 5 mm × 400 mm was counted, and evaluated in the following three stages.

○: less than 500, △: 500 or more and less than 1,000 × ×: 1,000 or more

Example 2

In Example 1, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion (R1) was changed to 21.25 parts by weight of dipropylene glycol methyl ether acetate (8.5% by weight of the total mixed solvent), propylene glycol A The treatment of the colored layer was carried out in the same manner as in Example 1 except that 75 parts by weight of ether acetate (60% by weight of the total mixed solvent) and 78.75 parts by weight of ethyl 3-ethoxypropionate (31.5% by weight of the total mixed solvent) were used. The composition (R1-2) was evaluated. The evaluation results are shown in Table 1.

Example 3

In Example 1, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion (R1) was changed to 21.25 parts by weight of dipropylene glycol methyl ether acetate (8.5% by weight of the total mixed solvent), propylene glycol A A composition for forming a colored layer was prepared in the same manner as in Example 1 except that 25 parts by weight of ether acetate (40% by weight of the total mixed solvent) and 128.75 parts by weight of diethylene glycol methyl ether (51.5% by weight of the total mixed solvent) were used. (R1-3) and evaluated. The evaluation results are shown in Table 1.

Example 4

In Example 1, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion (R1) was changed to 7.5 parts by weight of dipropylene glycol methyl ether acetate (3% by weight of the total mixed solvent), propylene glycol A The mixture was treated in the same manner as in Example 1 except that 50.0 parts by weight of ether acetate (50% by weight of the total mixed solvent) and 117.5 parts by weight of 3-methoxybutyl acetate (47% by weight of the total mixed solvent) were used to prepare a colored layer. The composition (R1-4) was evaluated. The evaluation results are shown in Table 1.

Comparative example 1

In Example 1, except that the mixed solvent added to 100 parts by weight of the pigment dispersion liquid (R1) was changed to 25 parts by weight of propylene glycol methyl ether acetate (40% by weight of the total mixed solvent), 3-methoxybutyl A composition for forming a colored layer (R1-5) was prepared in the same manner as in Example 1 except that 75 parts by weight of the acetate (30% by weight of the total mixed solvent) and 75 parts by weight of cyclohexanone (30% by weight of the total mixed solvent) were used. ) and evaluate. The evaluation results are shown in Table 1.

Comparative example 2

In Example 1, except that the mixed solvent added to 100 parts by weight of the pigment dispersion liquid (R1) was changed to 50 parts by weight of propylene glycol methyl ether acetate (50% by weight of the total mixed solvent), 3-ethoxypropane A composition for forming a colored layer was prepared in the same manner as in Example 1 except that 75 parts by weight of ethyl acetate (30% by weight of the total mixed solvent) and 50 parts by weight of diethylene glycol methyl ether (20% by weight of the total mixed solvent) were used. (R1-6) and evaluated. The evaluation results are shown in Table 1.

Comparative example 3

In Example 1, except that the mixed solvent added to 100 parts by weight of the pigment dispersion (R1) was changed to 37.5 parts by weight of dipropylene glycol methyl ether acetate (15% by weight of the total mixed solvent), propylene glycol methyl ether acetate 25 parts by weight (40% by weight of the total mixed solvent) and 112.5 parts by weight of diethylene glycol methyl ether (45% by weight of the total mixed solvent) were treated in the same manner as in Example 1 to prepare a composition for forming a colored layer (R1- 7) and evaluate. The evaluation results are shown in Table 1.

Example 5

15 parts by weight of a mixture of CI Pigment Green 36/CI Pigment Yellow 138/CI Pigment Yellow 150=50/40/10 (weight ratio) as (A) colorant, Disperbyk-20014 parts by weight as a dispersing agent (converted to solid form) Ingredients), as (B) alkali-soluble resin methacrylic acid / ω-carboxydicaprolactone monoacrylate / N-phenyl maleimide / styrene / benzyl methacrylate / monomethacrylic acid glycerin Ester copolymer (copolymer weight ratio = 15/10/20/10/35/10, Mw = 6,000, Mn = 3,000) 5 parts by weight, and 76 parts by weight of propylene glycol methyl ether acetate as a solvent, treated with a bead mill The pigment dispersion liquid (G1) was prepared (total 100 parts by weight).

Next, 100 parts by weight of the pigment dispersion (G1) is used as (B) alkali-soluble resin methacrylic acid/N-phenylmaleimide/styrene/benzyl methacrylate/monomethacrylate 5 parts by weight of copolymer (copolymer weight ratio = 15/25/15/35/10, Mw = 13,500, Mn = 6,000), and 10 parts by weight of dipentaerythritol hexaacrylate as (C) polyfunctional monomer, D) 5 parts by weight of 2-benzyl-2-dimethylamino-1-(4-morpholinylphenyl)butanone-1 as a photopolymerization initiator, and dipropylene glycol methyl ether acetate as a mixed solvent of (E) 12.5 parts by weight of the ester (5.0% by weight of the total mixed solvent), 50 parts by weight of propylene glycol methyl ether acetate (combined with the amount in (G1) as a total mixed solvent of 50.0% by weight), 3-methoxybutyl acetate 87.5 A part by weight (35.0% by weight of the total mixed solvent) and 25 parts by weight of cyclohexanone (10.0 parts by weight of the total mixed solvent) were mixed to prepare a composition for forming a colored layer (G1-1).

Next, the evaluation was carried out in the same manner as in Example 1 except that the obtained composition for forming a color layer (G1-1) was used. The results are shown in Table 2.

Example 6

In Example 5, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion (G1) was changed to 21.25 parts by weight of dipropylene glycol methyl ether acetate (about 8.5% by weight of the total mixed solvent), propylene glycol The coloring layer was treated in the same manner as in Example 5 except that 75 parts by weight of methyl ether acetate (about 60% by weight of the total mixed solvent) and 78.75 parts by weight of ethyl 3-ethoxypropionate (about 31.5% by weight of the total mixed solvent). After the composition for formation (G1-2), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 2.

Example 7

In Example 25, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion (G1) was changed to 21.25 parts by weight of dipropylene glycol methyl ether acetate (about 8.5% by weight of the total mixed solvent), propylene glycol The coloring layer was treated in the same manner as in Example 5 except that 25 parts by weight of methyl ether acetate (about 40.2% by weight of the total mixed solvent) and 128.75 parts by weight of 3-methoxybutyl acetate (about 51.3% by weight of the total mixed solvent). After the composition for formation (G1-3), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 2.

Example 8

In Example 5, except that the mixed solvent added to 100 parts by weight of the pigment dispersion (G1) was changed to 7.5 parts by weight of dipropylene glycol methyl ether acetate (about 3.0% by weight of the total mixed solvent), propylene glycol methyl ether acetate The composition for forming a colored layer was treated in the same manner as in Example 5 except that 50 parts by weight of the ester (about 50.2% by weight of the total mixed solvent) and 117.5 parts by weight of 3-methoxybutyl acetate (about 46.8 % by weight of the total mixed solvent). After the object (G1-4), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 2.

Comparative example 4

In the fifth embodiment, the mixed solvent added to 100 parts by weight of the pigment dispersion (G1) was changed to 75 parts by weight of propylene glycol methyl ether acetate (60% by weight of the total mixed solvent), 3-ethoxypropane. The composition for forming a colored layer was prepared in the same manner as in Example 5 except that 50 parts by weight of ethyl acetate (20% by weight of the total mixed solvent) and 50 parts by weight of diethylene glycol methyl ethyl ester (20% by weight of the total mixed solvent) After (G1-5), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 2.

Comparative Example 5

In Example 5, the mixed solvent added to 100 parts by weight of the pigment dispersion (G1) was changed to 75 parts by weight of propylene glycol methyl ether acetate (30% by weight of the total mixed solvent), 3-ethoxypropane. The composition for forming a colored layer was treated in the same manner as in Example 5 except that 125 parts by weight of ethyl acetate (50% by weight of the total mixed solvent) and 50 parts by weight of 3-methoxybutyl acetate (20% by weight of the total mixed solvent) After the object (G1-6), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 2.

Comparative Example 6

In Example 5, except that the mixed solvent added to 100 parts by weight of the pigment dispersion (G1) was changed to 37.5 parts by weight of dipropylene glycol methyl ether acetate (15% by weight of the total mixed solvent), propylene glycol methyl ether acetate The composition for forming a colored layer was prepared in the same manner as in Example 5 except that 24 parts by weight (40% by weight of the total mixed solvent) and 112.5 parts by weight of 3-methoxybutyl acetate (45% by weight of the total mixed solvent). After -7), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 2.

Example 9

15 parts by weight of a mixture of CI Pigment Blue 15/CI Pigment Violet 23=90/10 (weight ratio) as a coloring agent (A), and 5 parts by weight of Disperbyk-2001 as a dispersing agent (converted into solid components) as (B) Alkali-soluble resin of acrylic acid/N-phenylmaleimide/styrene/phenyl methacrylate/2-hydroxyethyl methacrylate/polymethyl methacrylate macromonomer copolymer (copolymer weight ratio) =15/20/10/35/10/10, Mw=23,000, Mn=11,000) 4 parts by weight, and 76 parts by weight of propylene glycol methyl ether acetate as a solvent, treated with a bead mill to prepare a pigment dispersion (B1) ) (total 100 parts by weight).

Next, 100 parts by weight of the pigment dispersion (B1) is used as (B) alkali-soluble resin methacrylic acid/N-phenylmaleimide/α-methylstyrene/benzyl methacrylate (copolymer weight) 10 parts by weight of 20 parts by weight of the (C) polyfunctional monomer, 20 parts by weight of dipentaerythritol hexaacrylate, as (D) photopolymerization initiator, 10 parts by weight of 20% by weight of 20% by weight 15 parts by weight of 2-methyl-1-[4-(methylthio)phenyl]-2-morpholinone, and 16 parts by weight of dipropylene glycol methyl ethyl acetate as a mixed solvent of (E) (full About 4.9 wt% of the mixed solvent, 104 parts by weight of propylene glycol methyl ether acetate (combined with about 55.2% by weight of the total mixed solvent in (B1)), and 32 parts by weight of diethylene glycol methyl ether (fully mixed) About 9.8% by weight of the solvent and 98 parts by weight of 3-methoxybutyl acetate (about 30.1% by weight of the total mixed solvent) were mixed to prepare a composition for forming a colored layer (B1-1).

The evaluation was carried out in the same manner as in Example 1 except that the obtained composition for forming a color layer (B1-1) was used. The evaluation results are shown in Table 2.

Example 10

In Example 9, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion liquid (B1) was changed to 27.75 parts by weight of dipropylene glycol methyl ether acetate (about 8.5% by weight of the total mixed solvent), propylene glycol The coloring layer was treated in the same manner as in Example 9 except that 104 parts by weight of methyl ether acetate (about 55.2% by weight of the total mixed solvent) and 118.25 parts by weight of ethyl 3-ethoxypropionate (about 36.3% by weight of the total mixed solvent). After the composition for formation (B1-2), the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 3.

Example 11

In Example 9, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion liquid (B1) was changed to 27.75 parts by weight of dipropylene glycol methyl ether acetate (about 8.5% by weight of the total mixed solvent), propylene glycol 56 parts by weight of methyl ether acetate (about 40.5% by weight of the total mixed solvent) and 81 parts by weight of 3-methoxybutyl acetate (about 24.8% by weight of the total mixed solvent) and 85.25 parts by weight of cyclohexanone (fully mixed) The composition for forming a colored layer (B1-3) was treated in the same manner as in Example 9 except that the solvent was about 26.2% by weight. The evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 3.

Example 12

In Example 9, except that the (E) mixed solvent added to 100 parts by weight of the pigment dispersion liquid (B1) was changed to 9.8 parts by weight of dipropylene glycol methyl ether acetate (about 3.0% by weight of the total mixed solvent), propylene glycol 54.5 parts by weight of methyl ether acetate (about 40.0% by weight of the total mixed solvent), 163 parts by weight of diethylene glycol methyl ether (about 50.0% by weight of the total mixed solvent) and 22.8 weight of 3-methoxybutyl acetate. The composition (B1-4) for preparing a colored layer was treated in the same manner as in Example 9 except that the amount of the mixture was changed to about 7.0% by weight of the total mixed solvent, and the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 3.

Comparative Example 7

In the ninth embodiment, the mixed solvent added to 100 parts by weight of the pigment dispersion liquid (B1) was changed to 56 parts by weight of propylene glycol methyl ether acetate (40.5% by weight of the total mixed solvent) and 3-ethoxypropane. The composition (B1-5) for preparing a colored layer was treated in the same manner as in Example 9 except that 194 parts by weight of the ethyl ester (59.5 wt% of the total mixed solvent) was used, and the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 3.

Comparative Example 8

In Example 9, except that the mixed solvent added to 100 parts by weight of the pigment dispersion liquid (B1) was changed to 88 parts by weight of propylene glycol methyl ether acetate (50.3 wt% of the total mixed solvent), 3-methoxybutyl The composition for forming a colored layer (B1-6) was treated in the same manner as in Example 9 except that 97 parts by weight of the acetate (29.8% by weight of the total mixed solvent) and 65 parts by weight of cyclohexanone (19.9 % by weight of the total mixed solvent). Thereafter, the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 3.

Comparative Example 9

In Example 9, except that the mixed solvent added to 100 parts by weight of the pigment dispersion liquid (B1) was changed to 49 parts by weight of dipropylene glycol methyl ether acetate (about 15.0% by weight of the total mixed solvent), propylene glycol methyl ether acetate 55 parts by weight of ester (about 40.2% by weight of the total mixed solvent), 81 parts by weight of 3-methoxybutyl acetate (about 24.8% by weight of the total mixed solvent) and 65 parts by weight of cyclohexanone (about the total mixed solvent) The composition for forming a colored layer (B1-7) was treated in the same manner as in Example 9 except for 20% by weight, and the evaluation was carried out in the same manner as in Example 1. The evaluation results are shown in Table 3.

Claims (5)

A linear composition for forming a color sensitive layer, comprising (A) a colorant, (B) an alkali-soluble resin, (C) a polyfunctional monomer, (D) a photopolymerization initiator, and (E) a solvent, The solvent (E) is a solvent containing 40 to 70% by weight of dipropylene glycol methyl ether acetate, 40 to 70% by weight of a solvent having a boiling point of less than 150 ° C, and 20 to 57% by weight of a solvent having a boiling point of 150 ° C or more and less than 180 ° C. A method for forming a color filter, which is characterized by the following steps (1) to (4), and (1) forming a coating film on the substrate as the linear composition of the sensitive radiation of claim 1 And (2) a step of exposing at least a portion of the coating film, (3) a step of developing a film after exposure, and (4) a step of heat-treating the film after development. A method of forming a color filter according to claim 2, wherein in the step (1), the slit nozzle is used to form a coating film of the radiation-sensitive linear composition. A color filter characterized by having a coloring layer formed of a linear radiation sensitive composition as in claim 1 of the patent application. A color liquid crystal display panel characterized by having a color filter as in item 4 of the patent application.