KR20180111067A - Blue photosensitive resin composition, color filter and image display device produced using the same - Google Patents

Abstract

The present invention relates to a blue photosensitive resin composition comprising scattering particles, a blue colorant, a cardo binder resin as a binder resin, a photopolymerization initiator, a photopolymerizable compound, an ultraviolet (UV) absorber, and a solvent. The UV absorber comprises at least one of benzotriazole-based, triazine-based, and benzophenone-based UV absorbers. More specifically, the present invention relates to a blue photosensitive resin composition, a color filter produced by using the same, and an image display device.

Description

TECHNICAL FIELD [0001] The present invention relates to a blue photosensitive resin composition, and a color filter and an image display device using the same. BACKGROUND ART [0002]

The present invention relates to a blue photosensitive resin composition, a color filter manufactured using the same, and an image display device.

A color filter is a thin film type optical component that extracts three colors of red, green, and blue in white light and makes it possible in fine pixel units. The size of one pixel is several tens to several hundreds of micrometers. Such a color filter has a black matrix layer formed in a predetermined pattern on a transparent substrate so as to shield a boundary portion between each pixel and a plurality of colors (typically red (R), green (G) and Blue (B)) are arranged in a predetermined order in this order.

In recent years, as a method of implementing a color filter, a pigment dispersion method using a pigment dispersion type photosensitive resin has been applied. However, in a process in which light emitted from a light source passes through a color filter, a part of light is absorbed by a color filter, The efficiency is lowered and the color reproduction is deteriorated due to the characteristics of the pigment contained in the color filter.

To solve these problems, a method of manufacturing a color filter using a self-luminescent photosensitive resin composition containing a quantum dot has been proposed.

Specifically, Korean Patent Publication No. 2007-0094679 discloses that a color filter layer formed of quantum dots can be provided to improve color reproducibility. In Korean Patent Publication No. 2009-0036373, a conventional color filter is used as a quantum dot fluorescent material It is possible to improve the luminous efficiency and improve the display quality.

In addition, the photosensitive resin composition developed to manufacture color filters has not sufficiently satisfied the requirements of excellent pattern characteristics, heat resistance, and the like.

Korean Patent Publication No. 2007-0094679 Korea Patent Publication No. 2009-0036373

Disclosure of Invention Technical Problem [7] The present invention has excellent pattern properties due to its excellent development speed and excellent processability, excellent heat resistance at the time of formation as a cured film, and no yellowing at high temperature, It is an object of the present invention to provide a color filter, in particular, a blue light-sensitive resin composition capable of realizing a self-emission color filter, and a color filter and an image display device manufactured using the same.

A blue photosensitive resin composition comprising scattering particles, a blue coloring agent, a binder resin, a cadmium binder resin, a photopolymerizable compound, a photopolymerization initiator, a UV absorber and a solvent, wherein the UV absorber is one of a benzotriazole system, a triazine system and a benzophenone system Or more based on the total weight of the photosensitive resin composition.

The present invention also provides a color filter comprising a blue pattern layer made of the above-mentioned blue photosensitive resin composition.

Further, the present invention is a color filter comprising: the color filter; And a light source that emits blue light.

The present invention is characterized in that the blue light-sensitive resin composition contains a UV absorber containing at least one of benzotriazole, triazine and benzophenone, so that it has excellent heat resistance and does not cause yellowing at high temperature, It is possible to realize a color filter having a good pattern characteristic and a poor implementation problem of a fine pixel, in particular, a self-emission color filter. Further, it is possible to provide a self-emission color filter of high quality image quality having an excellent viewing angle.

The blue light-sensitive resin composition of the present invention may include a scattering particle, a blue colorant, a binder resin, a cadmium-based binder resin, a photopolymerization initiator, a photopolymerizable compound, a thermosetting agent and a solvent. The color filter including the blue pattern layer produced by using the blue photosensitive resin composition of the present invention is excellent in thermal resistance and does not cause yellowing at high temperature, , It is possible to provide a color filter, particularly a self-emission color filter, capable of forming a fine pattern with a constant value and thus improving the problem of poor implementation of a fine pixel. Further, it is possible to provide a high-quality image-quality color filter having an excellent viewing angle, in particular, a self-emission color filter and an image display device including the same.

Hereinafter, the configuration of the present invention will be described in detail.

Scattering particles

The scattering particles of the present invention may be a metal oxide having an average particle diameter of 10 to 1000 nm and more preferably 30 to 300 nm. If the average particle size is less than the above range, a sufficient scattering effect of the incident light can not be expected. If the average particle size is larger than the above range, the surface of the self-emission layer that sinks into the composition or has uniform quality can not be obtained.

The metal oxide may be at least one selected from the group consisting of Li, Be, B, Na, Mg, Al, Si, K, Ca, Sc, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Ge, Sn, Zr, Nb, Sn, Zr, Ti, Sb, Ba, La, Hf, W, Ti, Pb, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Ce, Ta, In, and a combination of these metals. More specifically, in the group consisting of Al ₂ O ₃ , SiO ₂ , ZnO, ZrO ₂ , BaTiO ₃ , TiO ₂ , Ta ₂ O ₅ , Ti ₃ O ₅ , ZnO, Nb ₂ O ₃ , SnO and MgO, It may be at least one selected. Materials which have been surface-treated with a compound having an unsaturated bond such as acrylate can also be used if necessary.

The scattering particles can appropriately adjust the average particle size and the content in the whole composition as needed so as to sufficiently improve the emission intensity of the color filter.

The scattering particles may be contained in an amount of 0.1 to 50% by weight, preferably 5 to 30% by weight based on the total weight of the solid content in the blue photosensitive resin. When the scattering particles are in the above-described preferable ranges, an increase in the luminescence intensity can be obtained and the stability of the composition can be ensured.

Blue colorant

In the blue colorant of the present invention, the blue pigment is specifically a compound classified as pigment in the color index (The Society of Dyers and Colourists), and more specifically, the following color index (CI) Numbered pigments, but are not limited thereto. The blue pigments specifically include, for example, C.I. Pigment Blue 15: 3, 15: 4, 15: 6, 16, 21, 28, and 76, and C.I. Pigment Blue 15: 3, Pigment Blue 15: 6, Pigment Blue 16, and the like.

The blue colorant of the present invention may further comprise a blue dye, and the blue dye may be a compound classified as a dye in the color index (The Society of Dyers and Colourists) or a known compound described in dyeing notes Dyes.

Specific examples of the dyes that can be used additionally include, for example,

C.I. As solvent dyes,

C.I. Solvent Blue 5, 35, 36, 37, 44, 45, 59, 67 and 70, and C.I. More preferably at least one of Solvent Blue 35, 36, 44, 45 and 70. [

Also, C.I. As the acid dye,

CI Acid Blue 1, 7, 9, 15, 18, 23, 25, 27, 29, 40, 42, 45, 51, 62, 70, 74, 80, 83, 86, 87, 90, , 112, 113, 120, 129, 138, 147, 150, 158, 171, 182, 192, 210, 242, 243, 256, 259, 267, 278, 280, 285, 290, 296, 315, , 335 and 340, and among these, CI It is more preferred to include at least one of Acid Blue 80 and 90. [

Also, C.I. As a direct dye,

CI Direct Blue 38, 44, 57, 70, 77, 80, 81, 84, 85, 86, 90, 93, 94, 95, 97, 98, 99, 100, 101, 106, 107, 108, 109, 113 , 114, 115, 117, 119, 137, 149, 150, 153, 155, 156, 158, 159, 160, 161, 162, 163, 164, 166, 167, 170, 171, 172, 173, 188, 189 , 190, 192, 193, 194, 196, 198, 199, 200, 207, 209, 210, 212, 213, 214, 222, 228, 229, 237, 238, 242, 243, 244, 245, 247, 248 , 250, 251, 252, 256, 257, 259, 260, 268, 274, 275 and 293.

CI Modanito Blue 1, 2, 3, 7, 8, 9, 12, 13, 15, 16, 19, 20, 21, 22, 23, 24, 26, 30, 31, 32, 39, 43, 44, 48, 49, 53, 61, 74, 77, 83 and 84, and the like.

The blue dyes may be used alone or in combination of two or more.

The blue colorant of the present invention may further include a purple coloring agent as an additional coloring agent. The purple colorant may include at least one of a purple pigment and a purple dye, and the purple pigment specifically includes C.I. Pigment Violet 1, 14, 19, 23, 29, 32, 33, 36, 37 and 38, among others. It is more preferable to include Pigment Violet 23.

The purple dye specifically includes C.I. But are not limited to, solvent violet, C.I. acid violet, C.I. acid violet, C.I.

Specifically, the C.I. Solvent violet is C.I. Solvent Violet 8, 9, 13, 14, 36, 37, 47 and 49, and the like. It is more preferred to include solvent violet 13. C.I. Acid violet is C.I. Acid Violet 6B, 7, 9, 17, 19 and 66, and the like. It is more preferred to include Acid Violet 66. Examples of the CI direct violet include CI direct violet 47, 52, 54, 59, 60, 65, 66, 79, 80, 81, 82, 84, 89, 90, 93, 95, 96, .

Further, CI Modanth violet 1, 2, 4, 5, 7, 14, 22, 24, 30, 31, 32, 37, 40, 41, 44, 45, 47, 48, 53 and 58 .

The blue colorant may be used in an amount of 0.1 to 50% by weight, preferably 0.5 to 30% by weight based on the total weight of the solid components in the blue photosensitive resin. When the content of the blue colorant satisfies the above range, reflection of external light can be suppressed, light emission intensity can be effectively exhibited, and stability of viscosity can be ensured.

In the case of a self-emitting photosensitive resin containing a quantum dot, the quantum efficiency may deteriorate and its performance may deteriorate. In particular, since the blue quantum dot is expensive, there is a problem of cost increase, In the invention, the blue coloring agent and the scattering particles are included even though they do not include the blue quantum dot, thereby preventing the deterioration of the efficiency of the blue pixel of the color filter, especially the self-emission color filter.

Binder resin

The binder resin of the present invention includes a cadmium-based binder resin. The cationic binder resin has reactivity and alkali solubility due to the action of light or heat and acts as a dispersion medium of the coloring material. The cadmium binder resin contained in the blue photosensitive resin composition of the present invention is not limited as long as it functions as a binder resin for scattering particles and is soluble in the alkaline developer used in the development step for the production of color filters.

The cationic binder resin of the present invention may contain one or more of the compounds represented by Formulas (1-1) and (1-2).

[Formula 1-1]

[Formula 1-2]

In the above formula (1-1) or (1-2)

이며;R ₁ , R ₂ , R ₃ and R ₄ are each, independently,

;

X is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a hydroxyl group;

R ₅ is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms.

In the present invention, the compound represented by Formula 1-1 may be synthesized as a compound represented by Formula 2-1, and the compound represented by Formula 1-2 may be synthesized by using a compound represented by Formula 2-2 .

In the present invention, the compound represented by Formula 1-1 may be synthesized as a compound represented by Formula 2-1, and the compound represented by Formula 1-2 may be synthesized by using a compound represented by Formula 2-2 .

[Formula 2-1]

[Formula 2-2]

Specifically, the compound represented by Formula 1-1 is at least one compound represented by Formula 1-1-1 and Formula 1-1-2, and the compound represented by Formula 1-2 is represented by Formula 1-2- 1 and the compound represented by the general formula 1-2-2.

[Formula 1-1-1]

[Formula 1-1-2]

[Formula 1-2-1]

[Formula 1-2-2]

The cadmium-based binder resin may be selected from the group consisting of 9,9-bis (3-cinnamic diester) fluorene, 9,9-bis (3-cinnamoyl, 9,9-bis (3-cinnamoyl, 4-hydroxyphenyl) fluorene, 9,9-bis (glycidyl methacrylate ether) fluorene, 9,9-bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester, 9,6-diglycidyl methane, (3,6-diglycidyl methacrylate ether spiro (fluorene-9,9-xantene)), 9,9-bis (3-allyl, 4-hydroxyphenyl (9,9-bis (4-allyloxyphenyl) fluorene) and 9,9-bis (4-allyloxyphenyl) And at least one selected from the group consisting of bis (3,4-methacrylic diester) fluorine (9,9-bis (3,4-methacrylic diester) fluorine) Is a group consisting of maleic anhydride, succinic anhydride, itaconic anhydride, phthalic anhydride, anhydrous tetrahydrophthalic acid, anhydrous hexahydrophthalic acid, methylene DMDM tetrahydrophthalic acid, anhydrous chlorinated acid, and methyl tetrahydrophthalic acid, Aromatic polycarboxylic acid anhydrides such as pyromellitic anhydride, benzophenonetetracarboxylic acid dianhydride, biphenyltetracarboxylic acid dianhydride, and butenyl ether tetracarboxylic dianhydride, and the like, but they can be prepared by reacting them with at least one selected from the group consisting of It is not limited.

The present invention may further comprise an acrylic alkali-soluble resin as a binder resin. The acrylic alkali-soluble resin includes, for example, a copolymer of a carboxyl group-containing monomer and another monomer copolymerizable with the monomer. Examples of the carboxyl group-containing monomer include unsaturated carboxylic acids such as unsaturated monocarboxylic acids, unsaturated dicarboxylic acids, and unsaturated polycarboxylic acids having at least one carboxyl group in the molecule such as unsaturated tricarboxylic acids, have. Examples of the unsaturated monocarboxylic acid include acrylic acid, methacrylic acid, crotonic acid,? -Chloroacrylic acid, cinnamic acid, and the like. Examples of the unsaturated dicarboxylic acid include maleic acid, fumaric acid, itaconic acid, citraconic acid, and mesaconic acid. The unsaturated polycarboxylic acid may be an acid anhydride, and specific examples thereof include maleic anhydride, itaconic anhydride, citraconic anhydride and the like. The unsaturated polycarboxylic acid may also be a mono (2-methacryloyloxyalkyl) ester thereof, for example, succinic acid mono (2-acryloyloxyethyl), succinic acid mono (2-methacryloyloxyethyl ), Phthalic acid mono (2-acryloyloxyethyl), phthalic acid mono (2-methacryloyloxyethyl), and the like. The unsaturated polycarboxylic acid may be mono (meth) acrylate of the dicarboxylic polymer of both ends thereof, and examples thereof include ω-carboxypolycaprolactone monoacrylate and ω-carboxypolycaprolactone monomethacrylate . These carboxyl group-containing monomers may be used alone or in combination of two or more. Examples of other monomers copolymerizable with the carboxyl group-containing monomer include styrene,? -Methylstyrene, o-vinyltoluene, m-vinyltoluene, p-vinyltoluene, p-chlorostyrene, o- P-methoxy styrene, o-vinyl benzyl methyl ether, m-vinyl benzyl methyl ether, p-vinyl benzyl methyl ether, o-vinyl benzyl glycidyl ether, m-vinyl benzyl glycidyl ether, Aromatic vinyl compounds such as vinylbenzyl glycidyl ether and indene; Methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, n-propyl methacrylate, i-propyl acrylate, i-propyl methacrylate, butyl methacrylate, i-butyl acrylate, i-butyl methacrylate, sec-butyl acrylate, sec-butyl methacrylate, t-butyl acrylate, t-butyl methacrylate, Ethyl acrylate, 2-hydroxyethyl methacrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 3-hydroxypropyl acrylate, 3-hydroxypropyl methacrylate, 2- Hydroxybutyl acrylate, 2-hydroxybutyl methacrylate, 3-hydroxybutyl acrylate, 3-hydroxybutyl methacrylate, 4-hydroxybutyl acrylate, 4-hydroxybutyl methacrylate, Ally Acrylate, 2-methoxyethyl acrylate, 2-methoxyethyl acrylate, 2-methoxyethyl acrylate, 2-methoxyethyl acrylate, 2-methoxyethyl methacrylate, Methacrylate, 2-phenoxyethyl acrylate, 2-phenoxyethyl methacrylate, methoxy diethylene glycol acrylate, methoxy diethylene glycol methacrylate, methoxy triethylene glycol acrylate, methoxy triethylene glycol methacrylate Acrylate, methoxypropylene glycol methacrylate, methoxypropylene glycol acrylate, methoxydipropylene glycol methacrylate, isobornyl acrylate, isobornyl methacrylate, dicyclopentadiene Acrylate, dicyclopentadiethyl methacrylate, adamantyl (meth) acrylate, (Meth) acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-hydroxy-3-phenoxypropyl methacrylate, glycerol monoacrylate, glycerol monomethacrylate and the like Unsaturated carboxylic acid esters; Aminoethyl methacrylate, 2-aminoethyl methacrylate, 2-dimethylaminoethyl acrylate, 2-dimethylaminoethyl methacrylate, 2-aminopropyl acrylate, 2-aminopropyl methacrylate, 2- Unsaturated carboxylates such as methyl acrylate, ethyl acrylate, propyl methacrylate, isopropyl acrylate, isopropyl acrylate, isopropyl acrylate, isopropyl acrylate, isopropyl acrylate, Acid amino alkyl esters; Unsaturated carboxylic acid glycidyl esters such as glycidyl acrylate and glycidyl methacrylate; Carboxylic acid vinyl esters such as vinyl acetate, vinyl propionate, vinyl butyrate and vinyl benzoate; Unsaturated ethers such as vinyl methyl ether, vinyl ethyl ether and allyl glycidyl ether; Vinyl cyanide compounds such as acrylonitrile, methacrylonitrile,? -Chloroacrylonitrile, and vinylidene cyanide; Unsaturated amides such as acrylamide, methacrylamide,? -Chloroacrylamide, N-2-hydroxyethyl acrylamide and N-2-hydroxyethyl methacrylamide; Maleimide, benzyl maleimide, N-phenyl maleimide. Unsaturated imides such as N-cyclohexylmaleimide; Aliphatic conjugated dienes such as 1,3-butadiene, isoprene and chloroprene; And a monoacryloyl group or monomethacryloyl group at the end of the polymer molecular chain of polystyrene, polymethyl acrylate, polymethyl methacrylate, poly-n-butyl acrylate, poly-n-butyl methacrylate, And the like. These monomers may be used alone or in combination of two or more. Particularly, as other monomers copolymerizable with the carboxyl group-containing monomer, a bulky monomer such as a monomer having a norbornyl skeleton, a monomer having an adamantane skeleton, or a monomer having a rosin skeleton tends to lower the dielectric constant value, which is preferable .

The cationic binder resin and / or acrylic alkali-soluble resin of the present invention preferably has an acid value in the range of 20 to 200 (KOH mg / g). When the acid value is in the above range, the solubility in the developer is improved, the non-exposed portion is easily dissolved and the sensitivity is increased, and as a result, the pattern of the exposed portion remains during development, thereby improving the film remaining ratio. Here, the acid value is a value measured as the amount (mg) of potassium hydroxide necessary for neutralizing 1 g of the acrylic polymer, and can be generally determined by titration using an aqueous solution of potassium hydroxide. The weight average molecular weight (hereinafter, simply referred to as "weight average molecular weight") of a polymer having a weight average molecular weight of 2,000 to 200,000, preferably 3,000 to 100,000 in terms of polystyrene measured by gel permeation chromatography (GPC: tetrahydrofuran as an elution solvent) Cadmium-based binder resin or acrylic alkali-soluble resin is preferable. When the molecular weight is within the above range, the hardness of the coating film is improved, the residual film ratio is high, the solubility of the non-exposed portion in the developer is excellent, and the resolution tends to be improved.

 The molecular weight distribution (weight average molecular weight (Mw) / number average molecular weight (Mn)) of the cationic binder resin and / or acrylic alkali-soluble resin is preferably 1.0 to 6.0, more preferably 1.5 to 6.0. When the molecular weight distribution (weight-average molecular weight (Mw) / number-average molecular weight (Mn)) is 1.5 to 6.0, development is preferable.

 The binder resin of the present invention may be used in an amount of 5 to 85% by weight, preferably 5 to 60% by weight based on the total weight of the solid components in the blue photosensitive resin. When the content of the binder resin is within the above range, solubility in a developing solution is sufficient, so that development residue does not easily occur on the substrate of the non-pixel portion, and film reduction of the pixel portion of the exposure portion is unlikely to occur during development, Is preferable because it tends to be good.

Photopolymerization  compound

The photopolymerizable compound contained in the blue photosensitive resin composition of the present invention is a compound capable of polymerizing under the action of light and a photopolymerization initiator described later, and examples thereof include monofunctional monomers, bifunctional monomers, and other polyfunctional monomers. Specific examples of monofunctional monomers include nonylphenylcarbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexylcarbitol acrylate, 2-hydroxyethyl acrylate, N- Money and so on. Specific examples of the bifunctional monomer include 1,6-hexanediol di (meth) acrylate, ethylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, triethylene glycol di (meth) Bis (acryloyloxyethyl) ether of bisphenol A, 3-methylpentanediol di (meth) acrylate, and the like. Specific examples of other multifunctional monomers include trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol penta (meth) And erythritol hexa (meth) acrylate. Of these, multifunctional monomers having two or more functional groups are preferably used. The photopolymerizable compound may be contained in an amount of 5 to 50% by weight, preferably 5 to 45% by weight, based on the total weight of the solid content in the blue photosensitive resin composition. When the photopolymerizable compound is contained within the above-mentioned range, there is no reduction in photosensitivity, the strength of the film is sufficient, there is no loss of pattern during development, the pattern is well formed in the fine pattern portion, It is preferable because there is a tendency.

Light curing Initiator

The photopolymerization initiator used in the present invention may include at least one compound selected from the following compounds represented by the following formulas (3) to (5), and the photosensitive resin composition Initiates a radical reaction, thereby causing curing and improving the sensitivity.

(3)

In Formula 3, R ₈ represents a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group substituted with an alkyl group having 1 to 12 carbon atoms, a benzyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, or an alkyl group having 1 to 12 carbon atoms A substituted or unsubstituted naphthyl group or -SR ^a , and R ^a may be hydrogen, an alkyl group having 1 to 12 carbon atoms or a benzyl group.

R ₉ to R ₁₂ each independently represents a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, a benzyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, Or an unsubstituted or substituted naphthyl group, and R11 and R12 may form a ring.

Examples of the compound represented by the formula (3) include 2-methyl-2-amino (4-morpholinophenyl) ethan- 1-one, 2-propyl-2-amino (4-morpholinophenyl) ethan- (4-morpholinophenyl) propan-1-one, 2-methyl-2- Propan-1-one, 2-ethyl-2-amino (4-morpholinophenyl) butan- 2-dimethylamino (4-morpholinophenyl) propan-1-one and 2-methyl-2-diethylamino (4-morpholinophenyl) propan-1-one.

[Chemical Formula 4]

In Formula 4,

이며, 그 중 n은 1~4인 정수이고, m은 1~6인 정수이며;R ₁₄ is, for example, hydrogen, alkyl of 1 to 20 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, or unsubstituted or substituted phenyl,

, Wherein n is an integer of 1 to 4 and m is an integer of 1 to 6;

R ₁₅ is an alkyl group having 1 to 8 carbons, a phenyl group, a substituted phenyl group, a benzyl group or a substituted benzyl group;

R ₁₃ is a diphenyl sulfide group, a substituted diphenyl sulfide group, a carbazole group, a substituted carbazole group, a fluorene group, or a substituted fluorene group.

[Chemical Formula 5]

In Formula 5, R ₁₆ , R ₁₇ and R ₁₈ each independently represent R, OR, COR, SR, CONRR ', ROR' or CN;

R and R 'represent an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an aralkyl group having 7 to 30 carbon atoms, or a heterocyclic group having 2 to 20 carbon atoms, And the alkylene moiety of the alkyl group and the aralkyl group may be interrupted by an unsaturated bond, an ether bond, a thioether bond, an ester bond, and R and R 'may form a ring together ;

Y ₁ represents an oxygen atom, a sulfur atom or a selenium atom; m represents an integer of 0 to 4; p represents an integer of 0 to 5;

q represents 0 or 1;

R ₁₉ , R ₂₀ , R ₂₁ and R ₂₂ each independently represent a hydrogen atom, a halogen atom or an alkyl group having 1 to 8 carbon atoms;

X ₁ and X _{2 each} represent an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an aralkyl group having 7 to 30 carbon atoms, or a heterocyclic group having 2 to 20 carbon atoms, And the alkylene moiety of the alkyl group and the aralkyl group may be interrupted by an unsaturated bond, an ether bond, a thioether bond or an ester bond;

X ₂ may form a ring together with the carbon atoms of the adjacent rings, and more specifically may form an aromatic ring having 6 to 30 carbon atoms;

Y ₂ and Y ₃ each independently represent an oxygen atom, a sulfur atom or a selenium atom.

Preferably, the alkyl group represented by R and R 'includes an alkyl group such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, amyl, isoamyl, , Octyl, isooctyl, 2-ethylhexyl, tert-octyl, nonyl, isononyl, decyl, isodecyl, vinyl, aryl, butenyl, ethynyl, propynyl, methoxyethyl, ethoxyethyl, (Methoxy) ethoxy, ethoxyethoxyethyl, propyloxyethoxyethyl, methoxypropyl, monofluoromethyl, difluoromethyl, trifluoromethyl, trifluoroethyl, perfluoroethyl, 2- Benzooxazol-2'-yl) ethenyl, and among them, an alkyl group having 1 to 8 carbon atoms is preferable.

Examples of the aryl group represented by R and R 'include phenyl, tolyl, xylyl, ethylphenyl, chlorophenyl, naphthyl, anthryl, phenanthrenyl and the like. An aryl group having a number of 6 to 12 is preferable. Examples of the aralkyl group represented by R and R 'include an aralkyl group having 7 to 13 carbon atoms such as benzyl, chlorobenzyl,? -Methylbenzyl,?,? - dimethylbenzyl, phenylethyl and phenylethenyl, . Examples of the heterocyclic group represented by R and R 'include a heterocyclic group having 5 to 7 carbon atoms such as pyridyl, pyrimidyl, furyl and thiophenyl. Examples of the ring formed by R and R 'together are a ring having 5 to 7 carbon atoms such as a piperidine ring and a morpholine ring. R and R 'may be substituted with a halogen element such as fluorine, chlorine, bromine or iodine, or may be substituted with a halogen atom such as pyridyl, pyrimidyl, furyl, benzoxazol-2-yl, tetrahydropyranyl, pyrrolidyl, Diazolidyl, pyrazolidyl, thiazolidyl, isothiazolidyl, oxazolidyl, isooxazolidyl, piperidyl, piperazinyl, pyrazolyl, Piperidyl, morpholinyl, and the like.

The alkyl group represented by X ₁ and X ₂ is preferably an alkyl group such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl, amyl, isoamyl, Butenyl, ethynyl, propynyl, methoxyethyl, ethoxyethyl, propyloxyethyl, sec-butyl, isobutyl, sec-butyl, , Methoxyethoxyethyl, ethoxyethoxyethyl, propyloxyethoxyethyl, methoxypropyl, monofluoromethyl, difluoromethyl, trifluoromethyl, trifluoroethyl, perfluoroethyl, 2- (Benzooxazol-2'-yl) ethenyl, and among them, an alkyl group having 1 to 8 carbon atoms is preferable.

Examples of the aryl group represented by X ₁ and X ₂ include phenyl, tolyl, xylyl, ethylphenyl, chlorophenyl, naphthyl, anthryl, phenanthrenyl and the like. Among them, an aryl group having 6 to 12 carbon atoms is preferable. Examples of the aralkyl group represented by X ₁ and X ₂ include an aralkyl group having 7 to 13 carbon atoms such as benzyl, chlorobenzyl,? -Methylbenzyl,?,? - dimethylbenzyl, phenylethyl and phenylethenyl . Examples of the heterocyclic group represented by X ₁ and X ₂ include pyridyl, pyrimidyl, furyl, benzoxazol-2-yl, tetrahydropyranyl, pyrrolidyl, imidazolyl, pyrazolyl Pyrazolidyl, thiazolidyl, isothiazolidyl, oxazolidyl, isooxazolidyl, piperidyl, piperadyl, morpholinyl, And a heterocyclic group having 5 to 7 carbon atoms, such as a phenyl group,

Examples of the halogen atom represented by X ₁ and X ₂ include fluorine, chlorine, bromine and iodine.

The alkyl group represented by X ₁ and X ₂ is preferably a methyl group substituted with a halogen atom, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, a tert-butyl group, an isoamyl group, , Isooctyl, 2-ethylhexyl, and tert-octyl.

X ₂ may form a ring together with the carbon atoms of the adjacent rings, and more specifically may form an aromatic ring having 6 to 30 carbon atoms or a cyclic compound having 5 to 10 carbon atoms.

Examples of the halogen atom represented by R ₁₉ , R ₂₀ , R ₂₁ and R ₂₂ include fluorine, chlorine, bromine and iodine.

The alkyl group represented by R ₁₉ , R ₂₀ , R ₂₁ and R ₂₂ is preferably a methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, Octyl, isooctyl, 2-ethylhexyl, and tert-octyl.

The compound represented by Formula 5 may be the following compound.

Further, it is preferable to contain an acetophenone-based compound as a photopolymerization initiator. Examples of the acetophenone compound include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylketal, 2- 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropane-1- Methyl [4- (1-methylvinyl) phenyl] propane-1-one, 2-benzyl-2-dimethylamino- 2-dimethylamino-1- (4-morpholinophenyl) butan-1-one, and the like.

The photopolymerization initiator represented by the above formulas (3) to (5) may include the structures represented by the following formulas (5-1) to (5-8).

[Formula 5-1]

[Formula 5-2]

[Formula 5-3]

[Formula 5-4]

[Formula 5-5]

[Formula 5-6]

[Formula 5-7]

[Formula 5-8]

In addition, photopolymerization initiators other than the acetophenone-based photopolymerization initiator may be used in combination.

Photopolymerization initiators other than acetophenone-based photopolymerization initiators include active radical generators, sensitizers, and acid generators that generate active radicals upon irradiation with light. Examples of the active radical generator include benzoin-based compounds, benzophenone-based compounds, thioxanthone-based compounds, and triazine-based compounds.

Examples of the benzoin compound include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoisobutyl ether and the like. Examples of the benzophenone-based compound include benzophenone, methyl o-benzoylbenzoate, 4-phenylphenazine, 4-benzoyl-4'-methyldiphenylsulfide, 3,3 ', 4,4'-tetra t-butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone, and the like.

Examples of the thioxanthone compound include 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1- Propoxyoctanoate and the like.

Examples of the triazine compound include 2,4-bis (trichloromethyl) -6- (4-methoxyphenyl) -1,3,5-triazine, 2,4-bis ) -6- (4-methoxynaphthyl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- Triazine, 2,4-bis (trichloromethyl) -6- [2- (5-methylfuran-2-yl) ethenyl] -1,3,5- Methyl) -6- [2- (furan-2-yl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) Methylphenyl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (3,4-dimethoxyphenyl) ethenyl] 5-triazine and the like.

Examples of the active radical generator include 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 2,2-bis (o-chlorophenyl) -4,4 ', 5,5'-tetra Phenyl-1,2'-biimidazole, 10-butyl-2-chloroacridone, 2-ethyl anthraquinone, benzyl, 9,10-phenanthrenequinone, camphorquinone, methyl phenylglyoxylate, Compounds and the like can be used. Examples of the acid generator include 4-hydroxyphenyldimethylsulfonium p-toluene sulfonate, 4-hydroxyphenyldimethylsulfonium hexafluoroantimonate, 4-acetoxyphenyldimethylsulfonium p-toluene sulfone 4-acetoxyphenylmethylbenzylsulfonium hexafluoroantimonate, triphenylsulfonium p-toluenesulfonate, triphenylsulfonium hexafluoroantimonate, diphenyliodonium p-toluenesulfonate, diphenyliodonium p-toluenesulfonate, Diphenyl iodonium hexafluoroantimonate and the like, and nitrobenzyl tosylates, benzoin tosylates and the like.

Also, as the active radical generator, there are compounds which generate an acid at the same time as an active radical, and for example, a triazine-based photopolymerization initiator is also used as an acid generator.

The photopolymerization initiator may be contained in an amount of 0.1 to 20% by weight, preferably 0.3 to 15% by weight based on the total weight of the solid content in the blue photosensitive resin. Within the above range, it is preferable that the blue photosensitive resin composition is highly sensitized and the strength of the pixel portion formed using the composition and the smoothness of the surface of the pixel portion tend to be good.

Further, in the present invention, a photopolymerization initiator may be used. The photopolymerization initiator is sometimes used in combination with a photopolymerization initiator, and is a compound used for promoting polymerization of a photopolymerizable compound initiated by a photopolymerization initiator.

Examples of the photopolymerization initiator include amine compounds, alkoxyanthracene compounds, thioxanthone compounds, and the like.

Examples of the amine compound include triethanolamine, methyldiethanolamine, triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, 2-dimethylamino benzoate Ethyl (4-dimethylaminobenzoic acid), 2-ethylhexyl 4-dimethylaminobenzoate, N, N-dimethylparatoluidine, 4,4'-bis (dimethylamino) benzphenone Amino) benzophenone, and 4,4'-bis (ethylmethylamino) benzophenone. Of these, 4,4'-bis (diethylamino) benzophenone is preferable.

Examples of the alkoxyanthracene compound include 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl-9,10-diethoxyanthracene And the like.

Examples of the thioxanthone compound include 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1- Propanedioxanthone, and the like.

The photopolymerization initiator (D) may be used singly or in combination of two or more thereof. Commercially available photopolymerization initiators may be used. Examples of commercially available photopolymerization initiators include trade names "EAB-F" (manufactured by Hodogaya Chemical Industry Co., Ltd.) and the like.

When these photopolymerization initiators are used, their amount to be used is usually 10 mol or less, preferably 0.01 to 5 mol, per mol of the photopolymerization initiator. Within the above range, the sensitivity of the blue photosensitive resin composition becomes higher, and the productivity of the color filter formed using the composition tends to be improved, which is preferable.

UV absorber

In the present invention, it has been confirmed that the UV absorber has an effect of not only controlling the size of the pattern but also preventing the yellowing occurring during the high-temperature process, thereby increasing the quantum efficiency.

In general, it is known that the UV absorber is used when the CD bias of the photosensitive resin composition is increased and a fine pattern can not be realized. In this case, the term " seed " refers to the embossed portion of the pattern, and the " CD bias " When the UV absorber is added, the partial vibrations due to diffraction can be reduced as a part of UV is absorbed, and a desired pattern can be realized.

In addition, due to the poor heat resistance of the quantum dot, it is difficult to maintain the luminescent intensity at a high level in the color filter manufacturing process. At this time, if a UV absorber is added, a high luminescence intensity can be maintained even after post-bakeing several times.

The UV absorber according to the present invention contains at least one of benzotriazole-based, triazine-based, and benzophenone-based UV absorbers as essential components.

As the benzotriazole-based UV absorber, known compounds can be used. Specific examples thereof include octyl 3- [3- tert -butyl-4-hydroxy-5- (5-chloro-2H-benzotriazol- yl) phenyl) propionate, [3- [3- (2H-benzotriazol-2-yl) 5- (1, 1-methylethyl) -4-hydroxyphenyl] -1-oxopropyl] -w- [3- [3- (2H-benzotriazol- (3- (2H-benzotriazol-2-yl) - (4-hydroxyphenyl) -1-oxopropoxy] 2- (3-tert-butyl-2-hydroxyphenyl) -1-oxopropyl) (2H-benzotriazole-2-yl) -4,6-ditertpentylphenol, 3- (2H-benzotriazolyl) Benzyltriazol-2-yl) -4,6-bis (1-methyl-1-phenylethyl) -4-hydroxy- ) Phenol, 2- (2H-benzotriazol-2- ) This phenol is preferred 6- (1-methyl-1-phenylethyl) -4- (1,1,3,3-tetramethylbutyl).

As the triazine UV absorber, known compounds can be used. Specific examples thereof include 2- (4,6-dimethyl-1,3,5-triazin-2-yl) -5 - ((hexyl) oxy) (2,4-dimethylphenyl) -1,3,5-triazine, 2- (4- (2-hydroxy-phenyl) 2-hydroxyphenyl) -4,6-bis (2,4-dimethylphenyl) -1,3,5-triazine, 2- (2-hydroxy- (2,4-dimethylphenyl) -1,3,5-triazine, 2,2-bis (2-ethylhexyl-1-oxy) (5-butoxyphenol), 6-methylheptyl 2- {4-tert-butylphenyl) -1,3,5-triazine- [4,6-di (4-biphenyl) -1,3,5-triazin-2-yl] -3-hydroxyphenoxy} propanoate.

As the benzophenone-based UV absorber, known compounds can be used. Specific examples thereof include 2-hydroxy-4-n-octyloxybenzophenone and 2-hydroxy-4-methoxybenzophenone.

The content of the UV absorber is preferably 0.001 to 10% by weight, more preferably 0.025 to 7% by weight, based on the total weight of the solid content in the blue photosensitive resin. When the content of the UV absorber is within the above range, the effect of the absorbent can be improved and the pattern can be formed well without interfering with the action of the photopolymerization initiator.

solvent

The solvent contained in the blue photosensitive resin composition of the present invention is not particularly limited and various organic solvents used in the field of the blue photosensitive resin composition can be used. Specific examples thereof include ethylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether and ethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene Diethylene glycol dialkyl ethers such as diethylene glycol diethyl ether, glycol dipropyl ether and diethylene glycol dibutyl ether, ethylene glycol alkyl ether acetates such as methyl cellosolve acetate and ethyl cellosolve acetate, propylene glycol monomethyl ether acetate, Alkylene glycol alkyl ether acetates such as monoethyl ether acetate, propylene glycol monopropyl ether acetate, methoxybutyl acetate and methoxypentyl acetate, aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene, Ketones such as acetone, acetone, methyl amyl ketone, methyl isobutyl ketone and cyclohexanone; alcohols such as ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol and glycerin; esters such as ethyl 3-ethoxypropionate, Esters such as methyl 3-methoxypropionate, and cyclic esters such as? -Butyrolactone. Among the above-mentioned solvents, organic solvents having a boiling point of 100 to 200 in the solvent are preferably used from the viewpoint of coatability and drying property, more preferably alkylene glycol alkyl ether acetates, ketones, ethyl 3- And methyl 3-methoxypropionate. More preferred examples thereof include propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, cyclohexanone, ethyl 3-ethoxypropionate, 3-methoxy Methyl propionate and the like. These solvents may be used alone or in combination of two or more.

The content of the solvent in the blue photosensitive resin composition of the present invention may be 60 to 90 mass%, preferably 60 to 85 mass%, based on the total weight of the blue photosensitive resin composition. When the content of the solvent is within the above range, it is preferable because the coating property tends to be good when applied with a coating apparatus such as a roll coater, a spin coater, a slit and spin coater, a slit coater (sometimes referred to as a die coater) .

additive

The blue photosensitive resin composition for a blue pattern layer according to the present invention may contain filler, other polymer compound, pigment dispersant, An adhesion promoter, an antioxidant, an ultraviolet absorber, an anti-aggregation agent, and the like.

Specific examples of the other polymer compound include curable resins such as epoxy resins and maleimide resins, and thermoplastic resins such as polyvinyl alcohol, polyacrylic acid, polyethylene glycol monoalkyl ether, polyfluoroalkyl acrylate, polyester, and polyurethane. .

As the pigment dispersant, commercially available surfactants can be used, and examples thereof include surfactants such as silicone, fluorine, ester, cationic, anionic, nonionic, and amphoteric surfactants. These may be used alone or in combination of two or more.

Examples of the surfactant include polyoxyethylene alkyl ethers, polyoxyethylene alkylpethers, polyethylene glycol diesters, sorbitan fatty esters, fatty acid modified polyesters, tertiary amine modified polyurethanes (Manufactured by Shin-Etsu Chemical Co., Ltd.), POLYFLOW (manufactured by Kyoeisha Chemical Co., Ltd.), EFTOP (manufactured by TOKEM PRODUCTS CO., LTD.), And polyethyleneimine, (Manufactured by Dainippon Ink and Chemicals, Inc.), Flourad (manufactured by Sumitomo 3M Limited), Asahi guard, Surflon (manufactured by Asahi Glass Co., Ltd.), Sol SOLSPERSE (manufactured by Genene), EFKA (manufactured by EFKA Chemical), PB 821 (manufactured by Ajinomoto), and the like.

Examples of the adhesion promoter include vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxy) silane, N- (2-aminoethyl) -3-aminopropylmethyldimethoxysilane, 3-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 2 (aminoethyl) - (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-chloropropylmethyldimethoxysilane, 3-chloropropyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3- Trimethoxysilane, and the like. Specific examples of the antioxidant include 2,2'-thiobis (4-methyl-6-t-butylphenol) and 2,6-di-t-butyl-4-methylphenol.

Specific examples of the ultraviolet absorber include 2- (3-tert-butyl-2-hydroxy-5-methylphenyl) -5-chlorobenzothiazole and alkoxybenzophenone.

Specific examples of the anti-aggregation agent include sodium polyacrylate and the like.

The additive can be suitably added and used by those skilled in the art within a range not hindering the effect of the present invention. For example, the additive may be used in an amount of 0.05 to 10 parts by weight, preferably 0.1 to 10 parts by weight, more preferably 0.1 to 5 parts by weight, based on 100 parts by weight of the total of the blue photosensitive resin composition.

The blue photosensitive resin composition according to the present invention can be produced, for example, by the following method. Scattering particles are mixed with a solvent in advance and dispersed using a bead mill or the like until the average particle diameter becomes 30 to 300 nm. At this time, if necessary, a dispersant may be further used, and some or all of the binder resin may be blended. The remainder of the binder resin, the photopolymerizable compound, the photopolymerization initiator, other components to be used if necessary, and, if necessary, further solvent are further added to the obtained dispersion (hereinafter, also referred to as a mill base) The desired blue photosensitive resin composition can be obtained.

≪ Color filter and image display device >

Another aspect of the present invention relates to a color filter including a blue pattern layer including a cured product of the above-mentioned blue photosensitive resin composition for forming a blue pattern layer.

Since the color filter according to the present invention is made of the blue photosensitive resin composition for forming the blue pattern layer in place of the blue quantum dot, the manufacturing cost can be reduced and an excellent viewing angle can be secured.

In addition, the blue light-sensitive resin composition of the present invention may contain a UV absorber containing at least one of benzotriazole, triazine, and benzophenone to provide a blue pattern layer made of the blue photosensitive resin composition of the present invention The color filter is excellent in thermal resistance and does not cause yellowing at high temperature, so that it can form a fine pattern with a constant value without any change in luminescence intensity. can do.

The color filter includes a substrate and a blue pattern layer formed on the substrate.

The substrate may be the substrate of the color filter itself, or may be a portion where a color filter is placed on a display device or the like, and is not particularly limited. The substrate may be glass, silicon (Si), silicon oxide (SiOx), or a polymer substrate, and the polymer substrate may be polyethersulfone (PES) or polycarbonate (PC).

The blue pattern layer may be a layer including the blue photosensitive resin composition of the present invention and may be a layer formed by applying the blue photosensitive resin composition for forming a blue pattern layer and exposing, developing and thermally curing the blue pattern composition in a predetermined pattern, May be formed by carrying out a method commonly known in the art.

In still another embodiment of the present invention, the color filter may further include at least one selected from the group consisting of a red pattern layer and a green pattern layer.

In another embodiment of the present invention, the red pattern layer or the green pattern layer may include quantum dots and / or scattering particles. In particular, the color filter according to the present invention may include a red pattern layer including an effective quantum dot or a green pattern layer including a rust quantum dot, and the red pattern layer or the green pattern layer may include scattering particles. The red pattern layer or the green pattern layer may emit red light or blue light respectively by a light source emitting blue light, which will be described later.

In another embodiment of the present invention, the scattering particles included in the red pattern layer or the green pattern layer may include a metal oxide having an average particle diameter of 30 to 500 nm, and the content of the scattering particles and the metal oxide is The content of scattering particles and metal oxides contained in the blue photosensitive resin composition according to the invention can be applied.

In the present invention, the shape, composition and content of the quantum dots included in the red pattern layer or the green pattern layer are not limited, and quantum dots commonly used in the art can be applied.

The color filter including the substrate and the pattern layer as described above may further include a partition wall formed between the respective patterns, and may further include a black matrix, but is not limited thereto.

In the present invention, the color filter may be a self-emission color filter.

Another aspect of the present invention is a color filter comprising: the color filter described above; And a light source that emits blue light. In short, the image display apparatus according to the present invention includes a color filter including a blue pattern layer including a cured product of the above-mentioned blue photosensitive resin composition, and a light source that emits blue light.

The color filter of the present invention is applicable not only to a general liquid crystal display device but also to various image display devices such as an electroluminescence display device, a plasma display device, and a field emission display device.

The image display apparatus has an advantage in that it has excellent emission intensity or viewing angle when the color filter and the light source including the blue pattern layer according to the present invention are included. Further, since the blue pattern layer included in the color filter according to the present invention does not include blue quantum dots, there is an advantage that an image display device having a low manufacturing cost can be manufactured.

Hereinafter, the present invention will be described in detail by way of examples to illustrate the present invention. However, the embodiments according to the present disclosure can be modified in various other forms, and the scope of the present specification is not construed as being limited to the above-described embodiments. Embodiments of the present disclosure are provided to more fully describe the present disclosure to those of ordinary skill in the art. In the following, "%" and "part" representing the content are by weight unless otherwise specified.

Synthetic example : Synthesis of Binder Resin

Manufacturing example  1: Acrylic alkali-soluble resin

 A flask equipped with a stirrer, a thermometer reflux condenser, a dropping funnel and a nitrogen inlet tube was provided with 74.8 g (0.20 mol) of benzylmaleimide, 43.2 g (0.30 mol) of acrylic acid, 4 g of t-butylperoxy-2-ethylhexanoate and 40 g of propylene glycol monomethyl ether acetate (PGMEA) were charged and stirred to prepare a charge transfer additive dropping funnel. To this was added n-dodecanethiol And 24 g of PGMEA were placed and stirred and mixed. Then, 395 g of PGMEA was introduced into the flask, the atmosphere in the flask was changed to nitrogen in air, and the temperature of the flask was elevated to 90 DEG C with stirring. Then, the monomer and the chain transfer agent were added dropwise from the dropping funnel. The mixture was heated at 110 ° C. for 1 h and maintained at 90 ° C. for 1 h. The temperature was raised to 110 ° C. for 3 h. Then, a gas introduction tube was introduced to bubbling oxygen / nitrogen gas with 5/95 (v / v) . Then, 28.4 g of [(0.10 mol) of glycidyl methacrylate (33 mol% based on the carboxyl group of the acrylic acid used in the present reaction)], 2,2'-methylenebis (4-methyl-6-t- ) And 0.8 g of triethylamine were placed in a flask, and the reaction was continued at 110 캜 for 8 hours to obtain a resin A having a solid acid value of 70 mgKOH / g. The weight average molecular weight measured by GPC in terms of polystyrene was 16,000 and the molecular weight distribution (Mw / Mn) was 2.3.

Manufacturing example  2: Synthesis of Compound of Formula 1-1-1

A 3,000 ml three-necked round flask was charged with 364.4 g of 3 ', 6'-dihydroxyspiro (fluorene-9,9-xantene) (3', 6 " And 0.4159 g of bromide were mixed and 2359 g of epichlorohydrin was added and reacted by heating at 90 DEG C. When 3,6-dihydroxy spiro (fluorene-9,9-chanthylene) was completely consumed by liquid chromatography After cooling to 30 DEG C, 50% NaOH aqueous solution (3 equivalents) was added slowly. When the epichlorohydrin was completely removed by analysis by liquid chromatography, the reaction solution was extracted with dichloromethane, washed three times with water, and the organic layer was dried with magnesium sulfate The dichloromethane was distilled off under reduced pressure and recrystallized using a dichloromethane / methanol mixture ratio of 50:50.

One equivalent of the thus synthesized epoxy compound, 0.004 equivalent of t-butylammonium bromide, 0.001 equivalent of 2,6-diisobutylphenol and 2.2 equivalents of acrylic acid were mixed, and 24.89 g of propylene glycol monomethyl ether acetate as a solvent was added thereto and mixed. The reaction solution was heated and dissolved at 90 to 100 ° C while air was blown at 25 ml / min. The reaction solution was completely dissolved by heating to 120 DEG C in a cloudy state. When the solution becomes transparent and the viscosity becomes high, the acid value is measured and stirred until the acid value becomes less than 1.0 mg KOH / g. It took 11 hours to reach the target price (0.8). After completion of the reaction, the temperature of the reactor was lowered to room temperature to obtain a colorless transparent compound of the formula 1-1-1.

[Formula 1-1-1]

Production Example 3: Synthesis of Compound of Formula 1-1-2

A 3,000 ml three-necked round-bottomed flask was charged with 364.4 g of 3 ', 6'-dihydroxy spiro (fluorene-9,9-xantene) (3', 6 " And 0.4159 g of t-butylammonium bromide were mixed and 2359 g of epichlorohydrin was added and reacted by heating at 90 DEG C. Analysis by liquid chromatography revealed that 3,6-dihydroxy spiro (fluorene-9,9-xanthene ) Was completely exhausted, the solution was cooled to 30 DEG C and 50% NaOH aqueous solution (3 equivalents) was added slowly. When the epichlorohydrin was completely removed by analysis by liquid chromatography, it was extracted with dichloromethane, After drying with magnesium sulfate, dichloromethane was distilled off under reduced pressure, and recrystallization was performed using dichloromethane and methanol at a mixing ratio of 50:50.

One equivalent of the synthesized epoxy compound, 0.004 equivalent of t-butylammonium bromide, 0.001 equivalent of 2,6-diisobutylphenol and 2.2 equivalents of methacrylic acid were mixed, and 24.89 g of solvent propylene glycol monomethyl ether acetate was added thereto and mixed. The reaction solution was heated and dissolved at 90 to 100 ° C while air was blown at 25 ml / min. The reaction solution was completely dissolved by heating to a temperature of 120 in a cloudy state. When the solution becomes transparent and the viscosity becomes high, the acid value is measured and stirred until the acid value becomes less than 1.0 mg KOH / g. It took 11 hours to reach the target price (0.8). After completion of the reaction, the temperature of the reactor was lowered to room temperature to obtain a colorless transparent compound of the formula 1-1-2.

[Formula 1-1-2]

Production Example 4: Synthesis of Compound of Formula 1-2-1

A 3,000 ml three-necked round-bottomed flask was charged with 364.4 g of 4,4 '- (9H-xanthene-9,9-diyl) diphenol (4,4' And 2359 g of epichlorohydrin were charged and reacted by heating to 90 ° C. When the 4,4 '- (9H-xanthene-9,9-diyl) diphenol (4,4' - (9Hxanthene-9,9-diyl) diphenol) was completely consumed by analysis by liquid chromatography, A 50% aqueous NaOH solution (3 eq) was slowly added. When the epichlorohydrin was completely exhausted, the reaction mixture was extracted with dichloromethane and then washed three times. The organic layer was dried over magnesium sulfate, and the dichloromethane was distilled off under reduced pressure. The dichloromethane-methanol mixture ratio was 50:50 And recrystallized. One equivalent of the thus synthesized epoxy compound, 0.004 equivalent of t-butylammonium bromide, 0.001 equivalent of 2,6-diisobutylphenol and 2.2 equivalents of acrylic acid were mixed and 24.89 g of solvent propylene glycol monomethyl ether acetate was added and mixed. The reaction solution was heated and dissolved at 90 to 100 ° C while air was blown at 25 ml / min. The reaction solution was completely dissolved by heating to 120 DEG C in a cloudy state. When the solution becomes transparent and the viscosity becomes high, the acid value is measured and stirred until the acid value becomes less than 1.0 mg KOH / g. It took 11 hours to reach the target price (0.8). After completion of the reaction, the temperature of the reactor was lowered to room temperature to obtain a colorless transparent compound of the formula 1-2-1.

[Formula 1-2-1]

Production Example 5: Synthesis of Compound of Formula 1-2-2

A 3,000 ml three-necked round-bottomed flask was charged with 364.4 g of 4,4 '- (9H-xanthene-9,9-diyl) diphenol (4,4' And 2359 g of epichlorohydrin were charged and reacted by heating at 90 占 폚. When the 4,4 '- (9H-xanthene-9,9-diyl) diphenol (4,4' - (9Hxanthene-9,9-diyl) diphenol) was completely consumed by analysis by liquid chromatography, Aqueous NaOH solution (3 eq) was slowly added. When the epichlorohydrin was completely exhausted, the reaction mixture was extracted with dichloromethane and then washed three times. The organic layer was dried over magnesium sulfate, and the dichloromethane was distilled off under reduced pressure. The dichloromethane-methanol mixture ratio was 50:50 And recrystallized. One equivalent of the synthesized epoxy compound, 0.004 equivalent of t-butylammonium bromide, 0.001 equivalent of 2,6-diisobutylphenol and 2.2 equivalents of methacrylic acid were mixed, and 24.89 g of solvent propylene glycol monomethyl ether acetate was added and mixed. The reaction solution was heated and dissolved at 90 to 100 ° C while air was blown at 25 ml / min. The reaction solution was completely dissolved by heating to 120 DEG C in a cloudy state. When the solution becomes transparent and the viscosity becomes high, the acid value is measured and stirred until the acid value becomes less than 1.0 mg KOH / g. It took 11 hours to reach the target price (0.8). After completion of the reaction, the temperature of the reactor was lowered to room temperature to obtain a colorless transparent compound of the formula 1-2-2.

[Formula 1-2-2]

Production Example 6: Synthesis of cationic binder resin (A-1)

600 g of propylene glycol monomethyl ether acetate was added to 307.0 g of the compound of the formula 1-1-1 of Preparation Example 2 and dissolved. 78 g of biphenyltetracarboxylic dianhydride and 1 g of tetraethylammonium bromide were mixed and gradually heated to 110 And reacted at ~ 115 ° C for 4 hours. After disappearance of the acid anhydride group was confirmed, 38.0 g of 1,2,3,6-tetrahydrophthalic anhydride was mixed and reacted at 90 DEG C for 6 hours to polymerize with a cationic binder resin. The disappearance of the anhydride was confirmed by IR spectrum. Weight average molecular weight: 3500

Production Example 7: Synthesis of carcass binder resin (A-2)

600 g of propylene glycol monomethyl ether acetate was added to and dissolved in 307.0 g of the compound of formula 1-1-2 of Preparation Example 3, 78 g of biphenyltetracarboxylic acid dianhydride and 1 g of tetraethylammonium bromide were mixed and gradually heated to 110 And reacted at ~ 115 ° C for 4 hours. After disappearance of the acid anhydride group was confirmed, 38.0 g of 1,2,3,6-tetrahydrophthalic anhydride was mixed and reacted at 90 DEG C for 6 hours to polymerize with a cationic binder resin. The disappearance of the anhydride was confirmed by IR spectrum. Weight average molecular weight: 3800

Production Example 8: Synthesis of carcass binder resin (A-3)

600 g of propylene glycol monomethyl ether acetate was added to and dissolved in 307.0 g of the compound of the formula 1-2-1 of Production Example 4, 78 g of phenyl tetracarboxylic acid dianhydride and 1 g of tetraethylammonium bromide were mixed, And reacted at 115 ° C for 4 hours. After disappearance of the acid anhydride group was confirmed, 38.0 g of 1,2,3,6-tetrahydrophthalic anhydride was mixed and reacted at 90 DEG C for 6 hours to polymerize with a cationic binder resin. The disappearance of the anhydride was confirmed by IR spectrum. Weight average molecular weight: 4500

Production Example 9: Synthesis of carcass binder resin (A-4)

After adding 600 g of propylene glycol monomethyl ether acetate to 307.0 g of the compound of the formula 1-2-2 of Production Example 5 and dissolving, 78 g of phenyl tetracarboxylic dianhydride and 1 g of tetraethylammonium bromide were mixed and slowly heated to 110 - And reacted at 115 ° C for 4 hours. After disappearance of the acid anhydride group was confirmed, 38.0 g of 1,2,3,6-tetrahydrophthalic anhydride was mixed and reacted at 90 DEG C for 6 hours to polymerize with a cationic binder resin. The disappearance of the anhydride was confirmed by IR spectrum. Weight average molecular weight: 4900

Apparatus: HLC-8120GPC (manufactured by TOSOH CORPORATION)

Column: TSK-GELG4000HXL + TSK-GELG2000HXL (Serial connection)

Column temperature: 40 DEG C

Mobile phase solvent: tetrahydrofuran

Flow rate: 1.0 ml / min

Injection amount: 50 μl

Detector: RI

Measurement sample concentration: 0.6% by weight (solvent = tetrahydrofuran)

Standard materials for calibration: TSK STANDARD POLYSTYRENE F-40, F-4, F-1, A-2500, A-500 (manufactured by TOSOH CORPORATION)

The ratio of the weight average molecular weight to the number average molecular weight obtained above was defined as a molecular weight distribution (Mw / Mn).

Examples 1 to 9 Comparative Examples 1 to 7: Preparation of blue photosensitive resin composition

The blue photosensitive resin compositions of Examples 1 to 9 and Comparative Examples 1 to 7 were prepared according to the compositions shown in Tables 1 to 3 below. (Table 1 shows scattering particles, Table 2 shows the composition of the examples, and Table 3 shows the composition and content of the composition of the comparative example.)

[Table 1]

[Table 2]

⁰⁾ Blue colorant: CI Pigment Blue 15: 6

¹⁾ Binder resin:

A-1: Preparation Example A-1,

A-2: Preparation Example A-2,

A-3: Preparation Example A-3,

A-4: Production Example A-4,

A-5: Mono (2-methacryloyloxyalkyl) ester

²⁾ Photopolymerizable compound: dipentaerythritol hexaacrylate (KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd.)

³⁾ Photopolymerization initiator

D-1: Irgaquer-907 (manufactured by BASF)

D-2: OXE-01 (manufactured by BASF)

D-3: OXE-02 (manufactured by BASF)

D-4: PBG-327 (Troni, Formula 5-3)

^{5) )} F-1: TINUVIN 109 (manufactured by BASF) - benzotriazole series

F-2: TINUVIN 328 (manufactured by BASF) - benzotriazole series

F-3: TINUVIN 1577 (BASF) - Triazine

F-4: TINUVIN 400 (manufactured by BASF) - Triazine

F-5: Chimassorb 81 (manufactured by BASF) - benzophenone-based

⁶⁾ Solvent (E): Propylene glycol monomethyl ether acetate

[Table 3]

⁰⁾ Blue colorant: CI Pigment Blue 15: 6

¹⁾ Binder resin:

A-1: Preparation Example A-1,

A-2: Preparation Example A-2,

A-3: Preparation Example A-3,

A-4: Production Example A-4,

A-5: Mono (2-methacryloyloxyalkyl) ester

²⁾ Photopolymerizable compound: dipentaerythritol hexaacrylate (KAYARAD DPHA; manufactured by Nippon Kayaku Co., Ltd.)

³⁾ Photopolymerization initiator

D-1: Irgaquer-907 (manufactured by BASF)

D-2: OXE-01 (manufactured by BASF)

D-3: OXE-02 (manufactured by BASF)

D-4: PBG-327 (Troni, Formula 5-3)

^{5) )} F-1: TINUVIN 109 (manufactured by BASF) - benzotriazole series

F-2: TINUVIN 328 (manufactured by BASF) - benzotriazole series

F-3: TINUVIN 1577 (BASF) - Triazine

F-4: TINUVIN 400 (manufactured by BASF) - Triazine

F-5: Chimassorb 81 (manufactured by BASF) - benzophenone-based

⁶⁾ Solvent (E): Propylene glycol monomethyl ether acetate

Manufacture of color filters

Color filters were prepared using the metal oxide photosensitive resin compositions prepared in Examples 1 to 9 and Comparative Examples 1 to 5. That is, each of the above photosensitive resin compositions was coated on a glass substrate by spin coating, and then placed on a heating plate and held at a temperature of 100 ° C for 3 minutes to form a thin film.

Then, a test photomask having a transmittance of 20 mm × 20 mm square and a line / space pattern of 1 to 100 μm was placed on the thin film and irradiated with ultraviolet rays at a distance of 100 μm from the test photomask.

At this time, the ultraviolet light source was irradiated with light at an exposure dose (365 nm) of 200 mJ / cm 2 using an ultrahigh pressure mercury lamp (trade name: USH-250D) manufactured by Usuo Denki Co., Ltd., and no special optical filter was used.

The thin film irradiated with ultraviolet rays was immersed in a KOH aqueous solution of pH 10.5 for 80 seconds to develop. The glass plate coated with the thin film was washed with distilled water, dried by blowing nitrogen gas, and heated in a heating oven at 150 캜 for 10 minutes to prepare a color filter pattern. The film thickness of the color pattern prepared above was 5.0 mu m.

Experimental Example  1: Development speed, sensitivity, pattern stability, heat resistance experiment of color filter

The color filters prepared from the blue photosensitive resin compositions of Examples 1 to 9 and Comparative Examples 1 to 5 were evaluated as shown in Table 4 below. The evaluation criteria for each experiment are as follows. Development speed (sec): Development <Spray Developer HPMJ method> The time taken for the first time to dissolve the developer in the developer

Sensitivity: Sensitivity mask The degree of formation of thin film without peeling of fine pattern (1 ~ 60) (sensitivity is better as the value is lower)

Pattern stability: The degree of error of the pattern after exposure of the pattern mask at a low exposure dose (20 to 100 mJ).

Very good: no pattern errors

Excellent: 1 or 2 pattern errors

Medium: 3 pattern errors

Poor: More than 4 pattern errors

The judgment standard is a three-dimensional surface type confirmation result through the above optical microscope.

Evaluation of heat resistance and change in luminance: The color filter prepared by the above method was heated in a heating oven at 230 캜 for 2 hours,

In order to measure the color change before and after, the calculation was carried out by the equation (1), and the change in the luminance (? Y) before and after the heat resistance evaluation was confirmed.

About ΔY (luminance change)

?: Not less than -0.04 and not more than 0.00

X: less than -0.04

[Table 4]

As shown in Table 4, in Examples 1 to 9, the development speed was 15 or less and the process had excellent effects, and the sensitivity was excellent at 50 or less. There was no pattern error after exposure of the pattern mask and the pattern stability was excellent. .

On the other hand, in the case of Comparative Example 2, the curable binder resin was not used and only the acrylic alkali-soluble resin was used. In Comparative Example 3, the photopolymerizable compound was out of the proper range and hard to cure, and all of the patterns were peeled off. In addition, in the case of Comparative Example 4, it was confirmed that it was difficult to control the radicals, and it was difficult to withstand the heat resistance because there was no UV absorber.

Experimental Example  2: Experiment of fine pattern formation

The pattern size obtained through the line / space pattern mask designed to 100 탆 among the color filters manufactured using the metal oxide photosensitive resin prepared in Examples 1 to 9 and Comparative Examples 1 to 5 was measured with OM equipment (ECLIPSE LV100POL Nikon The size of the pattern was measured through a scanning electron microscope.

[Table 5]

If the difference between the design value of the line / space pattern mask and the measured value of the obtained fine pattern is 20 μm or more, implementation of the fine pixel becomes difficult, problems in the straightness and planarization of the pattern may occur, .

As shown in Table 5, in Examples 1 to 9, it was confirmed that the difference between the design value of the pattern mask and the measured value of the obtained fine pattern was 20 μm or less and that the fine pixel could be realized and the pattern characteristic was excellent.

On the other hand, in the case of Comparative Example 2, the curing was not easy due to the difficulty of curing including only acrylic resin, and in Comparative Example 3, the curing was difficult due to deviation from the appropriate range of the photopolymerizable compound, woke up. In the case of Comparative Example 4, it was confirmed that it was difficult to realize a fine pattern because there was no UV absorber.

Experimental Example  3: Measurement of luminescence intensity

A 365 nm tube type 4 W UV irradiator (VL-4LC, manufactured by Nippon Kayaku Co., Ltd.) was attached to a portion of the color filter fabricated using the metal oxide photosensitive resin prepared in Examples 1 to 9 and Comparative Examples 1 to 5 in a 20 x 20 mm square pattern , VILBER LOURMAT). In Examples 1 to 9 and Comparative Examples 1 to 7, emission intensities in a 450 nm region were measured using a spectrum meter (Ocean Optics).

[Table 6]

The higher the measured emission intensity, the higher the light efficiency.

It was confirmed that the luminous intensity of Examples 1 to 9 was as high as 2 or more and thus the luminous efficiency was excellent. On the other hand, in the case of Comparative Example 2, the curing was not easy due to the difficulty of curing including only acrylic resin, and in Comparative Example 4, there was no UV absorber, and the light efficiency was lowered.

Experimental Example  4: Measurement of viewing angle

The light intensity according to the viewing angle under the light transmission condition was measured on a portion formed with a pattern of 20 x 20 mm square among the color filters manufactured using the metal oxide photosensitive resin prepared in Examples 1 to 9 and Comparative Examples 1 to 5, (GC-5000L, Nippon Denshoku), and the spreading ratio was calculated using the following equation (1).

[Formula 1]

Spreading rate = (B ₇₀ + B ₂₀ ) / 2 x B ₅ x 100

(B _? = I _? / Cos?)

I means the light intensity measured at each angle and B _70, B _20, B ₅ means measured at 70 degrees, 20 degrees, and 5 degrees.

[Table 7]

The higher the measured spreading factor, the better the viewing angle. Table 7 shows that the viewing angles of Examples 1 to 9 were improved. Also, in the case of Comparative Example 4, it was confirmed that when the UV absorber was absent, the diffusion rate was lowered.

Claims (16)

A blue photosensitive resin composition comprising scattering particles, a blue colorant, a cadmium binder resin as a binder resin, a photopolymerizable compound, a photopolymerization initiator, a UV absorber and a solvent,
Wherein the UV absorber comprises at least one of a benzotriazole-based, triazine-based, and benzophenone-based UV absorber. The blue photosensitive resin composition according to claim 1, wherein the scattering particles comprise a metal oxide having an average particle diameter of 10 to 1000 nm. The method of claim 1, wherein the scattering particles are composed of Al ₂ O ₃ , SiO ₂ , ZnO, ZrO ₂ , BaTiO ₃ , TiO ₂ , Ta ₂ O ₅ , Ti ₃ O ₅ , ZnO, Nb ₂ O ₃ , SnO and MgO And at least one member selected from the group consisting of the compounds represented by the general formula (1). The blue photosensitive resin composition according to claim 1, wherein the blue photosensitive resin composition further comprises a purple coloring agent. The blue photosensitive resin composition according to claim 1, wherein the blue colorant comprises at least one of a blue pigment and a blue dye. The blue photosensitive resin composition according to claim 1, wherein the cationic binder resin comprises at least one compound represented by the following general formulas (1-1) and (1-2).
[Formula 1-1]

[Formula 1-2]

(In the formula 1-1 or 1-2,
R ₁ , R ₂ , R ₃ and R ₄ are each, independently,

;
X is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a hydroxyl group;
And R &lt; ₅ &gt; is a hydrogen atom or an alkyl group having 1 to 5 carbon atoms. The cadmium-based binder resin according to claim 1, wherein the cadmium binder resin is at least one selected from the group consisting of 9,9-bis (3-cinnamic diester) fluorene, 9,9-bis 3-cinnamoyl, 4-hydroxyphenyl) fluorene, 9,9-bis (glycidyl methacrylate ether) fluorene (9,9-bis bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester), 3,9-bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester, 6-diglycidyl methacrylate ether spiro (3,6-diglycidyl methacrylate ether spiro (fluorene-9,9-xantene)), 9,9-bis , 9-bis (4-allyloxyphenyl) fluorene, 9,9-bis (3-allyl, ) fluorene and 9,9-bis (3,4-methacrylic diester) fluorine). 1 comprises at least, the blue photosensitive resin composition. The blue photosensitive resin composition according to claim 1, wherein the blue photosensitive resin composition further comprises an acrylic alkali-soluble resin as a binder resin. The blue photosensitive resin composition according to claim 1, wherein the photopolymerization initiator comprises at least one selected from compounds represented by Chemical Formulas 3 to 5 shown below.
(3)

(3)
R ₈ represents a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, a benzyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, an alkyl group having 1 to 12 carbon atoms, Or a-SR &^lt; a &gt;, and R &lt; ^a &gt; may be hydrogen, an alkyl group having 1 to 12 carbon atoms or a benzyl group;
R ₉ to R ₁₂ each independently represents a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, a benzyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms, A naphthyl group substituted or unsubstituted with an alkyl group having 1 to 12 carbon atoms;
And R &lt; ₁₁ &gt; and R &lt; ₁₂ &gt; may form a ring together.
[Chemical Formula 4]

(Wherein R ₁₃ is a diphenyl sulfide group, a substituted diphenyl sulfide group, a carbazole group, a substituted carbazole group, a fluorene group, or a substituted fluorene group;
R ₁₄ represents hydrogen, an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 8 carbon atoms, an unsubstituted or substituted phenyl group or

N is an integer of 1 to 4, and m is an integer of 1 to 6;
R ₁₅ is an alkyl group having 1 to 8 carbons, a phenyl group, a substituted phenyl group, a benzyl group or a substituted benzyl group.
[Chemical Formula 5]

(5)
R _16, R ₁₇ and R ₁₈ each independently represents an R, OR, COR, SR, CONRR ', ROR' or CN; R and R 'is aryl having 1 to 20 carbon alkyl group, having 6 to 30 carbon atoms, An aralkyl group having 7 to 30 carbon atoms or a heterocyclic group having 2 to 20 carbon atoms, which may be substituted with a halogen atom or a heterocyclic group having 2 to 20 carbon atoms, and the alkylene moiety of the alkyl group and the aralkyl group is preferably an unsaturated bond, an ether May be interrupted by a bond, a thioether bond or an ester bond, and R and R 'may together form a ring;
Y ₁ represents an oxygen atom, a sulfur atom or a selenium atom; m represents an integer of 0 to 4; p represents an integer of 0 to 5;
q represents 0 or 1;
R ₁₉ , R ₂₀ , R ₂₁ and R ₂₂ each independently represent a hydrogen atom, a halogen atom or an alkyl group having 1 to 8 carbon atoms;
X ₁ and X ₂ represent an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, an aralkyl group having 7 to 30 carbon atoms, or a heterocyclic group having 2 to 20 carbon atoms, which may be substituted with a halogen atom or a heterocyclic group having 2 to 20 carbon atoms And the alkylene moiety of the alkyl group and the aralkyl group may be interrupted by an unsaturated bond, an ether bond, a thioether bond or an ester bond;
X ₂ may form a ring together with the carbon atoms of adjacent rings;
Y ₂ and Y ₃ each independently represent an oxygen atom, a sulfur atom or a selenium atom.) The method according to claim 1,
Wherein the photopolymerization initiator comprises at least one selected from the group consisting of the following structural formulas.
[Formula 5-1]

[Formula 5-2]

[Formula 5-3]

[Formula 5-4]

[Formula 5-5]

[Formula 5-6]

[Formula 5-7]

[Formula 5-8]

[3] The composition of claim 1, wherein the scattering particles are contained in an amount of 0.1 to 50% by weight based on the total weight of the solid content in the blue photosensitive resin; 0.1 to 50% by weight of the blue colorant; 5 to 85% by weight of the binder resin; 5 to 50% by weight of photopolymerizable compound; 0.1 to 20% by weight of the photoinitiator; And 0.001 to 10% by weight of a UV absorber comprising at least one of the benzotriazole-based, triazine-based and benzophenone-based UV absorbers, wherein the blue light-sensitive resin composition contains 60 to 90% Sensitive resin composition.
A color filter comprising a blue pattern layer made of the blue photosensitive resin composition according to any one of claims 1 to 11. The method of claim 12,
Wherein the color filter further comprises at least one selected from the group consisting of a red pattern layer and a green pattern layer. 14. The method of claim 13,
Wherein the red pattern layer or green pattern layer comprises a quantum dot. 15. The method of claim 14,
Wherein the color filter is a self-emission color filter. A color filter according to claim 12; And
And a light source for emitting blue light.