KR102395742B1 - Blue photosensitive resin composition, color filter and image display device produced using the same - Google Patents

Abstract

The present invention provides a blue photosensitive resin composition comprising scattering particles, a blue colorant, a binder resin, a photopolymerizable compound, a photoinitiator and a solvent,
The solvent is a blue photosensitive resin composition comprising a solvent (A) having a boiling point of 100 to 169 °C and a solvent (B) having a boiling point of 170 to 250 °C, a color filter and an image display device manufactured using the same it is about

Description

Blue photosensitive resin composition, color filter and image display device manufactured using the same

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

A color filter is a thin film-type optical component that extracts three colors of red, green, and blue from white light and makes it possible in fine pixel units, and the size of one pixel is tens to hundreds of micrometers. These color filters include a black matrix layer formed in a predetermined pattern on a transparent substrate to block light at the boundary between each pixel, and a plurality of colors (typically red (R), green (G) and The pixel units in which the three primary colors of blue (B) are arranged in a predetermined order have a structure in which they are sequentially stacked.

Recently, as one of the methods of realizing a color filter, a pigment dispersion method using a pigment-dispersed photosensitive resin is applied. Efficiency is lowered, and color reproduction is deteriorated due to the characteristics of the pigment included in the color filter.

In order to solve this problem, a method for manufacturing a color filter using a self-luminous photosensitive resin composition including quantum dots has been proposed.

Specifically, Korean Patent Laid-Open No. 2007-0094679 suggests that color reproducibility can be improved by having a color filter layer formed of quantum dots, and Korean Patent Laid-Open No. 2009-0036373 uses an existing color filter as a quantum dot phosphor. It is suggested that the display quality can be improved by improving the luminous efficiency by replacing it with the light emitting layer formed.

However, the photosensitive resin composition developed so far for manufacturing color filters has not been able to solve problems such as VD stains and pin stains.

Republic of Korea Patent Publication No. 2007-0094679 Republic of Korea Patent Publication No. 2009-0036373

The present invention provides a blue photosensitive resin composition capable of realizing a color filter with improved display defect, especially a self-luminous color filter, and a color manufactured using the color filter, which has excellent flow characteristics and does not cause VD stains or pin stains, so there is no change in luminous intensity. An object of the present invention is to provide a filter and an image display device.

A blue photosensitive resin composition comprising scattering particles, a blue colorant, a cardo-based binder resin, a photopolymerizable compound, a photoinitiator and a solvent,

The solvent provides a blue photosensitive resin composition comprising a solvent (A) having a boiling point of 100 to 169°C and a solvent (B) having a boiling point of 170 to 250°C.

In addition, the present invention provides a color filter including a blue pattern layer made of the above-described blue photosensitive resin composition.

In addition, the present invention is the color filter; and a light source emitting blue light.

In the present invention, the blue photosensitive resin composition includes a solvent (A) having a boiling point of 100 to 169 ° C and a solvent (B) having a boiling point of 170 to 250 ° C. Therefore, there is no change in luminous intensity, and color filters with improved display defects, especially self-luminous color filters, can be implemented. In addition, it is possible to provide a self-luminous color filter of high quality having an excellent viewing angle.

The present invention relates to a blue photosensitive resin composition. Although the blue photosensitive resin composition of the present invention does not contain blue quantum dots, by including scattering particles, a blue colorant, a cardo-based binder resin and a solvent, it is possible to prevent a decrease in the efficiency of the blue pixel and lower the manufacturing cost.

Specifically, the blue photosensitive resin composition of the present invention may include scattering particles, a blue colorant, a cardo-based binder resin, a photoinitiator, a photopolymerizable compound, and a solvent, in particular, a solvent having a boiling point of 100 to 169 ℃ as the solvent (A ) and the solvent (B) having a boiling point of 170 to 250 ° C. There is no change in emission intensity, and it is free from afterimages that may occur during panel operation by minimizing the amount of outgas generated, and it is possible to provide a color filter with improved display defects by eliminating the disconnection of electrodes formed between pixels due to reverse taper between developing processes. there is. In addition, it is possible to provide a self-luminous color filter of high quality having an excellent viewing angle 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, more preferably an average particle diameter in the range of 30 to 500 nm. At this time, when the average particle diameter is less than the above range, sufficient scattering effect of light emitted from the quantum dots cannot be expected, and when the average particle diameter is above the above range, it is not possible to sink in the composition or obtain a surface of the self-luminous layer of uniform quality.

The metal oxide is Li, Be, B, Na, Mg, Al, Si, K, Ca, Sc, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, Ge, Rb, Sr, Y, Mo, Cs, Ba, La, Hf, W, Tl, Pb, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Ti, Sb, Sn, Zr, Nb, It may be an oxide including one type of metal selected from the group consisting of Ce, Ta, In, and combinations thereof. More specifically, one selected from 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, etc. can be more than If necessary, a material surface-treated with a compound having an unsaturated bond such as acrylate may be used.

The content of the scattering particles is limited in the average particle diameter and the total composition to sufficiently improve the light emission intensity of the color filter.

In addition, the scattering particles may be included 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 within the above preferred range, it is possible to obtain an effect of increasing the luminescence intensity and ensure the stability of the composition.

blue colorant

In the blue colorant of the present invention, the blue pigment specifically includes compounds classified as pigments in the color index (published by The Society of Dyers and Colorists), and more specifically, the following color index (C.I.) numbered pigments, but are not necessarily limited to these. Blue pigments are specifically, for example, C.I. Pigment Blue 15:3, 15:4, 15:6, 16, 21, 28, and 76; and C.I. It is preferable to include at least one selected from the group consisting of Pigment Blue 15:3, Pigment Blue 15:6, and Pigment Blue 16.

The blue colorant of the present invention may further include a blue dye, and the blue dye is a compound classified as a dye in the color index (published by The Society of Dyers and Colorists) or a known compound described in the dyeing note (color dye). dyes.

Specifically, for example, the dye that can be additionally used

C.I. As a solvent dye,

C.I. solvent blue 5, 35, 36, 37, 44, 45, 59, 67 and 70; More preferably, it contains at least one of solvent blue 35, 36, 44, 45 and 70.

Also, C.I. As an acid dye,

C.I. Acid Blue 1, 7, 9, 15, 18, 23, 25, 27, 29, 40, 42, 45, 51, 62, 70, 74, 80, 83, 86, 87, 90, 92, 96, 103 , 112, 113, 120, 129, 138, 147, 150, 158, 171, 182, 192, 210, 242, 243, 256, 259, 267, 278, 280, 285, 290, 296, 315, 324:1 , 335 and 340, among others, C.I. It is more preferable to include at least one of Acid Blue 80 and 90.

Also, C.I. As a direct dye,

C.I. 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.

C.I. modanto blue 1, 2, 3, 7, 8, 9, 12, 13, 15, 16, 19, 20, 21, 22, 23, 24, 26, 30, 31, 32, 39, 40, 41, 43, 44, 48, 49, 53, 61, 74, 77, 83 and 84.

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

The purple dye is specifically, C.I. Solvent Violet, C.I. Acid Violet, C.I. Acid Violet, C.I. Modanto Violet, and the like, but are not limited thereto.

Specifically, the C.I. Solvent Violet is C.I. solvent violet 8, 9, 13, 14, 36, 37, 47 and 49; and C.I. More preferably, solvent violet 13 is included. For C.I. Acid Violet, C.I. acid violet 6B, 7, 9, 17, 19 and 66; and C.I. It is more preferable to include Acid Violet 66. Examples of C.I. Direct Violet include C.I. Direct Violet 47, 52, 54, 59, 60, 65, 66, 79, 80, 81, 82, 84, 89, 90, 93, 95, 96, 103 and 104. .

Moreover, C.I. modanto violet 1, 2, 4, 5, 7, 14, 22, 24, 30, 31, 32, 37, 40, 41, 44, 45, 47, 48, 53 and 58, etc. are mentioned. .

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 content in the blue photosensitive resin. When the content of the blue colorant satisfies the above range, external light reflection can be suppressed, the luminous intensity of color can be effectively displayed, and stability of viscosity can be secured.

binder resin

The binder resin of the present invention contains a cardo-based binder resin. The cardo-based binder resin has reactivity and alkali solubility under the action of light or heat, and acts as a dispersion medium for the coloring material. The cardo-based binder resin contained in the blue photosensitive resin composition of the present invention acts as a binder resin for the scattering particles, and is not limited as long as it is a resin soluble in the alkaline developer used in the developing step for manufacturing the color filter.

The cardo-based binder resin of the present invention may include one or more of the compounds represented by Chemical Formulas 1-1 and 1-2.

[Formula 1-1]

[Formula 1-2]

In Formula 1-1 or Formula 1-2,

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

is;

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 below, and the compound represented by Formula 1-2 may be synthesized 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 below, and the compound represented by Formula 1-2 may be synthesized 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 of the compounds represented by Formula 1-1-1 and Formula 1-1-2, and the compound represented by Formula 1-2 is Formula 1-2- 1 and may be at least one compound represented by Formula 1-2-2.

[Formula 1-1-1]

[Formula 1-1-2]

[Formula 1-2-1]

[Formula 1-2-2]

The cardo-based binder resin is 9,9-bis (3-cinnamic diester) fluorene (9,9-bis (3-cinnamic diester) fluorene), 9,9-bis (3-cinnamoyl, 4-hyde Roxyphenyl)fluorene (9,9-bis(3-cinnamoil, 4-hydroxyphenyl)fluorene), 9,9-bis(glycidyl methacrylate ether)fluorene (9,9-bis(glycidyl methacrylate ether) fluorene), 9,9-bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester (9,9-bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester), 3,6-diglycidyl meta acrylate ether spiro (fluorene-9,9-xanthene) (3,6-diglycidyl methacrylate ether spiro (fluorene-9,9-xantene)), 9,9-bis (3-allyl, 4-hydroxyphenyl flu Orene) (9,9-bis(3-allyl, 4-hydroxyphenlylfluorene), 9,9-bis(4-allyloxyphenyl)fluorene (`9,9-bis(4-allyloxyphenyl)fluorene) and 9,9 -Bis(3,4-methacrylic diester)fluorine (9,9-bis(3,4-methacrylic diester)fluorine) as an acid anhydride compound with at least one selected from the group consisting of maleic anhydride, succinic anhydride, Itaconic anhydride, phthalic anhydride, tetrahydrophthalic anhydride, hexahydrophthalic anhydride, methylene anhydride, pyromellitic anhydride, benzophenone It can be prepared by reacting with at least one selected from the group consisting of aromatic polyhydric carboxylic acid anhydrides such as tetracarboxylic dianhydride, biphenyltetracarboxylic dianhydride, and bitenyl ether tetracarboxylic dianhydride, but is not limited thereto.

The present invention may further include an acrylic alkali-soluble resin as a binder resin. Examples of the acrylic alkali-soluble resin include a carboxyl group-containing monomer and a copolymer of the monomer and other copolymerizable monomers. Examples of the carboxyl group-containing monomer include unsaturated carboxylic acids such as unsaturated monocarboxylic acids, unsaturated dicarboxylic acids, and unsaturated polycarboxylic acids having one or more carboxyl groups in the molecule such as unsaturated tricarboxylic acids. there is. Here, as an unsaturated monocarboxylic acid, acrylic acid, methacrylic acid, a crotonic acid, (alpha)-chloroacrylic acid, cinnamic acid etc. are mentioned, for example. Examples of the unsaturated dicarboxylic acid include maleic acid, fumaric acid, itaconic acid, citraconic acid, and mesaconic acid. The unsaturated polyhydric carboxylic acid may be an acid anhydride, and specific examples thereof include maleic anhydride, itaconic anhydride, and citraconic anhydride. In addition, the unsaturated polyhydric carboxylic acid may be its mono(2-methacryloyloxyalkyl) ester, for example, succinic acid mono(2-acryloyloxyethyl), succinic acid mono(2-methacryloyloxyethyl) ), mono(2-acryloyloxyethyl phthalate), mono(2-methacryloyloxyethyl) phthalate, etc. are mentioned. The unsaturated polyhydric carboxylic acid may be a mono (meth) acrylate of the dicarboxy polymer at both terminals, and examples thereof include ω-carboxypolycaprolactone monoacrylate and ω-carboxypolycaprolactone monomethacrylate. . These carboxyl group-containing monomers can be used individually or in mixture of 2 or more types, respectively. Examples of the other monomer copolymerizable with the carboxyl group-containing monomer include styrene, α-methylstyrene, o-vinyltoluene, m-vinyltoluene, p-vinyltoluene, p-chlorostyrene, o-methoxystyrene, m-methyl Toxystyrene, p-methoxystyrene, o-vinylbenzylmethyl ether, m-vinylbenzylmethylether, p-vinylbenzylmethylether, o-vinylbenzylglycidylether, m-vinylbenzylglycidylether, p- aromatic vinyl compounds such as vinyl benzyl glycidyl ether and indene; Methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, n-propyl acrylate, n-propyl methacrylate, i-propyl acrylate, i-propyl methacrylate, n-butyl acrylate, n-butyl methacrylate, i-butyl acrylate, i-butyl methacrylate, sec-butyl acrylate, sec-butyl methacrylate, t-butyl acrylate, t-butyl methacrylate, 2-hydroxy 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, Allyl acrylate, allyl methacrylate, benzyl acrylate, benzyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, phenyl acrylate, phenyl methacrylate, 2-methoxyethyl acrylate, 2-methoxy Ethyl methacrylate, 2-phenoxyethyl acrylate, 2-phenoxyethyl methacrylate, methoxydiethylene glycol acrylate, methoxydiethylene glycol methacrylate, methoxytriethylene glycol acrylate, methoxytriethylene glycol Methacrylate, methoxypropylene glycol acrylate, methoxypropylene glycol methacrylate, methoxydipropylene glycol acrylate, methoxydipropylene glycol methacrylate, isobornyl acrylate, isobornyl methacrylate, dicyclopenta Dienyl acrylate, dicyclopentadiethyl methacrylate, adamantyl (meth) acrylate, norbornyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-hydroxy- unsaturated carboxylic acid esters such as 3-phenoxypropyl methacrylate, glycerol monoacrylate, and glycerol monomethacrylate; 2-Aminoethyl acrylate, 2-aminoethyl methacrylate, 2-dimethylaminoethyl acrylate, 2-dimethylaminoethyl methacrylate, 2-aminopropyl acrylate, 2-aminopropyl methacrylate, 2-dimethyl Unsaturated carboxyl groups such as aminopropyl acrylate, 2-dimethylaminopropyl methacrylate, 3-aminopropyl acrylate, 3-aminopropyl methacrylate, 3-dimethylaminopropyl acrylate, and 3-dimethylaminopropyl methacrylate acid aminoalkyl esters; unsaturated carboxylic acid glycidyl esters such as glycidyl acrylate and glycidyl methacrylate; Carboxylic acid vinyl esters, such as vinyl acetate, a vinyl propionate, a vinyl butyrate, and a vinyl benzoate; unsaturated ethers such as vinyl methyl ether, vinyl ethyl ether, and allyl glycidyl ether; vinyl cyanide compounds such as acrylonitrile, methacrylonitrile, α-chloroacrylonitrile and vinylidene cyanide; unsaturated amides such as acrylamide, methacrylamide, α-chloroacrylamide, N-2-hydroxyethylacrylamide, and N-2-hydroxyethylmethacrylamide; Maleimide, benzylmaleimide, N-phenylmaleimide. unsaturated imides such as N-cyclohexyl maleimide; 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 polysiloxane. and macromonomers having These monomers can be used individually or in mixture of 2 or more types, respectively. In particular, as other monomers copolymerizable with the carboxyl group-containing monomer, bulky monomers such as a monomer having a norbornyl skeleton, a monomer having an adamantane skeleton, and a monomer having a rosin skeleton are preferable because they tend to lower the relative dielectric constant. .

As the cardo-based binder resin and/or acrylic alkali-soluble resin of the present invention, the acid value is preferably in the range of 20 to 200 (KOH mg/g). When the acid value is within the above range, the solubility in the developer is improved, so that the non-exposed portion is easily dissolved and the sensitivity is increased, so that the pattern of the exposed portion remains at the time of development, which is preferable, thereby improving the film remaining ratio. Here, the acid value is a value measured as the amount (mg) of potassium hydroxide required to neutralize 1 g of the acrylic polymer, and can be usually obtained by titration using an aqueous potassium hydroxide solution. In addition, the polystyrene reduced weight average molecular weight (hereinafter simply referred to as 'weight average molecular weight') measured by gel permeation chromatography (GPC; using tetrahydrofuran as the elution solvent) is 2,000 to 200,000, preferably 3,000 to 100,000. A cardo-type binder resin or an acrylic-type alkali-soluble resin is preferable. When the molecular weight is in the above range, the hardness of the coating film is improved, the film remaining rate is high, the solubility of the non-exposed part in the developer is excellent, and the resolution tends to be improved, which is preferable.

The molecular weight distribution [weight average molecular weight (Mw)/number average molecular weight (Mn)] of the cardo-based binder resin and/or the acrylic alkali-soluble resin is preferably 1.0 to 6.0, and more preferably 1.5 to 6.0. A molecular weight distribution [weight average molecular weight (Mw)/number average molecular weight (Mn)] of 1.5 to 6.0 is preferable because developability is excellent.

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 content in the blue photosensitive resin. When the content of the binder resin is within the above range, the solubility in the developer is sufficient, so that development residues are hardly generated on the substrate of the non-pixel portion, and the film reduction of the pixel portion of the exposed portion is difficult to occur during development, so that the non-pixel portion is missing This is preferable because it tends to be favorable.

photopolymerization compound

The photopolymerizable compound contained in the blue photosensitive resin composition of the present invention is a compound capable of polymerization by the action of light and a photoinitiator described later, and includes monofunctional monomers, difunctional monomers, and other polyfunctional monomers. Specific examples of the monofunctional monomer include nonylphenyl carbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexyl carbitol acrylate, 2-hydroxyethyl acrylate, N-vinyl pyrrol money, etc. 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) acrylate, Bis(acryloyloxyethyl) ether of bisphenol A, 3-methylpentanediol di(meth)acrylate, etc. are mentioned. Specific examples of the other polyfunctional monomer include trimethylolpropane tri(meth)acrylate, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol penta(meth)acrylate, dipenta Erythritol hexa(meth)acrylate etc. are mentioned. Among these, the polyfunctional monomer more than bifunctional is used preferably.

The photopolymerizable compound may be used in an amount of 5 to 50% by weight, preferably 5 to 30% by weight, based on the total weight of the solid content in the blue photosensitive resin. If the photopolymerizable compound is within the above range, there is no reduction in photosensitivity, sufficient film strength, no pattern loss during development, good pattern construction even in fine pattern portions, and good resist smoothness. desirable.

photoinitiator

The photoinitiator used in the present invention serves to increase the productivity by improving the sensitivity of the photosensitive resin composition, and preferably contains an acetophenone-based compound. Examples of the acetophenone-based compound include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethyl ketal, and 2-hydroxy-1-[4-(2). -Hydroxyethoxy)phenyl]-2-methylpropan-1-one, 1-hydroxycyclohexylphenylketone, 2-methyl-1-(4-methylthiophenyl)-2-morpholinopropane-1- One, 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one, 2-hydroxy-2-methyl[4-(1-methylvinyl)phenyl]propane-1- an oligomer of one, preferably 2-benzyl-2-dimethylamino-1-(4-morpholinophenyl)butan-1-one. In addition, a combination of photoinitiators other than the above acetophenone-based photoinitiators can be used. Examples of photoinitiators other than acetophenone include active radical generators, sensitizers, and acid generators that generate active radicals by irradiating light. Examples of the active radical generator include a benzoin-based compound, a benzophenone-based compound, a thioxanthone-based compound, and a triazine-based compound. As a benzoin type compound, benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzo isobutyl ether, etc. are mentioned, for example. Examples of the benzophenone-based compound include benzophenone, methyl o-benzoylbenzoate, 4-phenylzophenone, 4-benzoyl-4'-methyldiphenylsulfide, 3,3',4,4'-tetra( t-butylperoxycarbonyl)benzophenone, 2,4,6-trimethylbenzophenone, etc. are mentioned. Examples of the thioxanthone-based compound include 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1-chloro- 4-propoxythioxanthone etc. are mentioned. As the triazine-based compound, for example, 2,4-bis(trichloromethyl)-6-(4-methoxyphenyl)-1,3,5-triazine, 2,4-bis(trichloromethyl) -6-(4-Methoxynaphthyl)-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-(4-methoxystyryl)-1,3,5-tri Azine, 2,4-bis(trichloromethyl)-6-[2-(5-methylfuran-2-yl)ethenyl]-1,3,5-triazine, 2,4-bis(trichloromethyl )-6-[2-(furan-2-yl)ethenyl]-1,3,5-triazine, 2,4-bis(trichloromethyl)-6-[2-(4-diethylamino- 2-methylphenyl)ethenyl]-1,3,5-triazine,2,4-bis(trichloromethyl)-6-[2-(3,4 dimethoxyphenyl)ethenyl]-1,3,5 -triazine, etc. are mentioned. 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-ethylanthraquinone, benzyl, 9,10-phenanthrenequinone, camphorquinone, methyl phenylglyoxylate, titanocene compounds and the like can be used. The acid generator includes, for example, 4-hydroxyphenyldimethylsulfonium p-toluenesulfonate, 4-hydroxyphenyldimethylsulfonium hexafluoroantimonate, 4-acetoxyphenyldimethylsulfonium p-toluenesulfo nate, 4-acetoxyphenylmethylbenzylsulfonium hexafluoroantimonate, triphenylsulfonium p-toluenesulfonate, triphenylsulfonium hexafluoroantimonate, diphenyliodonium p-toluenesulfonate, Onium salts, such as diphenyliodonium hexafluoroantimonate, nitrobenzyl tosylate, benzointosylate, etc. are mentioned. In addition, as an active radical generator, some of the compounds generate an acid simultaneously with an active radical. For example, a triazine-based photoinitiator is also used as an acid generator.

The photoinitiator used in the blue photosensitive resin composition according to the present invention may be included in an amount of 0.1 to 30% by weight, preferably 0.3 to 20% by weight, based on the total weight of the solid content in the blue photosensitive resin. When it exists in said range, since there exists a tendency for the intensity|strength of the pixel part formed using the blue photosensitive resin composition to become highly sensitive, and the smoothness on the surface of this pixel part using this composition, it is preferable.

Furthermore, in this invention, a photoinitiation adjuvant can be used. The photopolymerization initiation adjuvant is sometimes used in combination with a photoinitiator, and is a compound used to promote polymerization of a photopolymerizable compound whose polymerization is initiated by the photoinitiator. As a photoinitiation adjuvant, an amine compound, an alkoxyanthracene type compound, a thioxanthone type compound, etc. are mentioned.

Examples of the amine compound include triethanolamine, methyldiethanolamine, triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, and 2-dimethyl benzoate. Aminoethyl, 4-dimethylaminobenzoic acid 2-ethylhexyl, N,N-dimethylparatoluidine, 4,4'-bis(dimethylamino)benzphenone (common name, Michler's ketone), 4,4'-bis(di ethylamino)benzophenone and 4,4'-bis(ethylmethylamino)benzophenone are mentioned, Among these, 4,4'-bis(diethylamino)benzophenone is preferable. Examples of the alkoxyanthracene-based compound include 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, and 2-ethyl-9,10-diethoxy. Anthracene etc. are mentioned. As the thioxanthone-based compound, for example, 2-isopropylthioxanthone, 4-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1-chloro -4-propoxythioxanthone etc. are mentioned. Such a photoinitiator (D) does not interfere even if it is used individually or in combination of a plurality. Moreover, a commercially available thing can be used as a photoinitiation adjuvant, As a commercially available photoinitiation adjuvant, the brand name "EAB-F" [manufacturer: Hodogaya Chemical Industry Co., Ltd.] etc. are mentioned, for example.

When using these photoinitiator adjuvants, the amount used is usually 10 mol or less, preferably 0.01-5 mol per 1 mol of the photoinitiator. When it exists in said range, since the sensitivity of a blue photosensitive resin composition becomes higher and there exists a tendency for productivity of the color filter formed using this composition to improve, it is preferable.

solvent

The solvent contained in the blue photosensitive resin composition of the present invention contains a solvent (A) having a boiling point of 100 to 169 ° C. and a solvent (B) having a boiling point of 170 to 250 ° C. It is possible to provide a self-luminous color filter in which pin mura is not generated, there is no change in light emission intensity, and a display defect is improved.

The solvent (A) having a boiling point of 100 to 169° C. may include at least one selected from the group consisting of ethers, aromatic hydrocarbons, ketones, alcohols, esters and amides, and specifically, propylene glycol mono Methyl ether acetate, ethylene glycol monomethyl ether (about 124 to 125 °C), ethylene glycol monoethyl ether (about 135.6 °C), methyl cellosolve acetate (about 145 °C), ethyl cellosolve acetate (about 156 °C), toluene (approx. 110.6°C), xylene (approx. 138.4°C), mesitylene (approx. 164.7°C), methylamylketone (approx. 151°C), methylisobutylketone (approx. 116.1°C), Cyclohexanone (about 155.6 °C), butanol (about 117.7 °C), hexanol (about 157 °C), cyclohexanol (about 161.8 °C) and ethyl 3-ethoxypropionate (about 166 °C), etc. It may be at least one selected from the group consisting of.

The solvent (B) having a boiling point of 170 to 250° C. may include at least one selected from the group consisting of ethers, aromatic hydrocarbons, ketones, alcohols, esters and amides, and specifically 1,3 -Butylene glycol diacetate, ethyl-3-ethoxypropionate, propylene glycol diacetate, ethylene glycol monopropyl ether (about 150-152 °C), ethylene glycol monobutyl ether (about 171 °C), diethylene One member selected from the group consisting of glycol diethyl ether (about 189 °C), methoxybutyl acetate (about 172 °C), ethylene glycol (about 197.3 °C) and γ-butyrolactone (about 204 °C) may be more than

When the solvent (A) having the boiling point of 100 to 169 is used alone, the drying rate is fast, and erosion may occur on the surface of the coating film during the vacuum drying process, thereby causing defects. On the other hand, when the solvent (B) having a boiling point of 170 to 250 is used alone, it may cause a problem in that the tack-time is prolonged during the vacuum dry process. Therefore, it is used appropriately mixed.

Content of the solvent in the blue photosensitive resin composition of this invention is 60-90 mass % with respect to the blue photosensitive resin composition whole quantity containing it, Preferably it can contain 60-85 mass %. When the solvent is contained within the above range, it is preferable because the applicability tends to be good when applied with an application device such as a roll coater, spin coater, slit and spin coater, slit coater (sometimes referred to as a die coater), inkjet, etc. .

additive

The blue pattern layer blue photosensitive resin composition according to the present invention may contain, if necessary, a filler, another polymer compound, and a pigment dispersant. Additives such as adhesion promoters, antioxidants, ultraviolet absorbers, and anti-aggregation agents may be further included.

Specific examples of the filler include glass, silica, alumina, and the like.

Specific examples of the other high molecular compounds 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. can

As said pigment dispersant, commercially available surfactant can be used, For example, surfactant, such as silicone type, fluorine type, ester type, cationic type, anionic type, nonionic type, amphoteric type, etc. are mentioned. These may be used individually or in combination of 2 or more types, respectively.

Examples of the surfactant include polyoxyethylene alkyl ethers, polyoxyethylene alkyl ethers, polyethylene glycol diesters, sorbitan fatty esters, fatty acid-modified polyesters, tertiary amine-modified polyurethanes , polyethyleneimines, etc. In addition, as trade names, KP (manufactured by Shin-Etsu Chemical Co., Ltd.), POLYFLOW (manufactured by Kyoeisha Chemical Co., Ltd.), EFTOP (manufactured by Tochem Products), MEGAFAC (manufactured by Dainippon Ink Chemical Co., Ltd.), Flourad (manufactured by Sumitomo 3M Co., Ltd.), Asahi guard, Surflon (above, manufactured by Asahi Glass Co., Ltd.), brush SOLSPERSE (manufactured by Zeneca), EFKA (manufactured by EFKA Chemicals), PB 821 (manufactured by Ajinomoto), and the like.

As the adhesion promoter, for example, vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris(2-methoxyethoxy)silane, N-(2-aminoethyl)-3-aminopropylmethyldimethoxysilane, N-(2-aminoethyl)-3-aminopropyltrimethoxysilane, 3-aminoprotriethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 2 -(3,4-epoxycyclohexyl)ethyltrimethoxysilane, 3-chloropropylmethyldimethoxysilane, 3-chloropropyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3-mercaptopropyl Trimethoxysilane etc. are mentioned. 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-chlorobenzotyrazole and alkoxybenzophenone.

Specific examples of the aggregation inhibitor include sodium polyacrylate.

The additives can be used by those skilled in the art by adding them appropriately in a range that does not impair the effects 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 blue photosensitive resin composition, but is not limited thereto.

The blue photosensitive resin composition according to the present invention may be prepared, for example, by the following method. The scattering particles are mixed with a solvent in advance and dispersed using a bead mill or the like until the average particle diameter is 30 to 300 nm. In this case, a dispersing agent may be additionally used if necessary, and some or all of the binder resin may be blended. The remainder of the binder resin, a photopolymerizable compound, a photoinitiator, other components used as necessary, and an additional solvent as necessary are further added to the obtained dispersion (hereinafter, sometimes referred to as mill base) to a predetermined concentration. The blue photosensitive resin composition to be said 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-described blue photosensitive resin composition for forming a blue pattern layer.

Since the color filter according to the present invention is made of the above-described blue photosensitive resin composition for forming a blue pattern layer instead of blue quantum dots, the manufacturing cost can be lowered and an excellent viewing angle can be secured.

In addition, by including a solvent (A) having a boiling point of 100 to 169 ° C. and a solvent (B) having a boiling point of 170 to 250 ° C. in the blue photosensitive resin composition of the present invention, blue produced using the blue photosensitive resin composition of the present invention The color filter including the pattern layer has excellent flow characteristics, so there is no VD stain or pin stain, so there is no change in light emission intensity, and color filters with improved display defects, especially self-luminous color filters, can be implemented.

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

The substrate may be a substrate of the color filter itself, or may be a portion in which a color filter is located in a display device, 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 is a layer comprising the blue photosensitive resin composition of the present invention, and may be a layer formed by applying the blue photosensitive resin composition for forming the blue pattern layer and exposing, developing and thermosetting in a predetermined pattern, and the pattern layer can be formed by performing a method commonly known in the art.

In 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. Specifically, the color filter according to the present invention may include a red pattern layer including red quantum dots or a green pattern layer including green quantum dots, and the red pattern layer or 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 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 included in the blue photosensitive resin composition according to the present invention. The contents of scattering particles and metal oxides can be applied.

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

The color filter including the substrate and the pattern layer as described above may further include a barrier rib formed between each pattern, and may further include a black matrix, but is not limited thereto.

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

Another aspect of the present invention, the above-described color filter; and a light source emitting blue light. In short, the image display device according to the present invention includes a color filter including a blue pattern layer including a cured product of the above-described blue photosensitive resin composition and a light source emitting blue light.

The color filter of the present invention can be applied to various image display devices, such as an electroluminescence display, a plasma display, and a field emission display, as well as a general liquid crystal display.

When the image display device includes the light source and the color filter including the blue pattern layer according to the present invention, there is an advantage in having excellent light emission intensity or viewing angle. In addition, since the blue pattern layer included in the color filter according to the present invention does not contain blue quantum dots, there is an advantage in that an image display device having a low manufacturing cost can be manufactured.

Hereinafter, examples will be given to describe the present specification in detail. However, the embodiments according to the present specification may be modified in various other forms, and the scope of the present specification is not to be construed as being limited to the embodiments described below. The embodiments of the present specification are provided to more completely explain the present specification to those of ordinary skill in the art. In addition, "%" and "part" indicating the content hereinafter are based on weight unless otherwise specified.

Synthesis example : Synthesis of binder resin

production example 1: Synthesis of the compound of Formula 1-1-1

In a 3000ml three-necked round flask, 364.4 g of 3',6'-dihydroxyspiro(fluorene-9,9-xantene) and t-butylammonium 0.4159 g of bromide was mixed, 2359 g of epichlorohydrin was added, and the reaction was heated to 90° C. When 3,6-dihydroxyspiro (fluorene-9,9-xanthene) is completely consumed by liquid chromatography analysis, After cooling to 30° C., a 50% aqueous solution of NaOH (3 equivalents) was slowly added, and when epichlorohydrin was completely consumed as analyzed by liquid chromatography, the mixture was extracted with dichloromethane, washed with water 3 times, and the organic layer was dried over magnesium sulfate. Then, dichloromethane was distilled under reduced pressure, and recrystallized using a mixture of dichloromethane and methanol 50:50.

1 equivalent of the thus synthesized epoxy compound, 0.004 equivalents of t-butylammonium bromide, 0.001 equivalents of 2,6-diisobutylphenol, and 2.2 equivalents of acrylic acid were mixed, and then 24.89 g of propylene glycol monomethyl ether acetate solvent was added and mixed. The reaction solution was dissolved by heating at a temperature of 90 to 100°C while blowing air at a rate of 25 ml/min. In a state in which the reaction solution was cloudy, the temperature was heated to 120° C. to completely dissolve it. When the solution became transparent and the viscosity increased, the acid value was measured and stirred until the acid value became less than 1.0 mgKOH/g. It took 11 hours for the acid value to reach the target (0.8). After completion of the reaction, the temperature of the reactor was lowered to room temperature to obtain a colorless and transparent compound of Formula 1-1-1.

[Formula 1-1-1]

production example 2: cardio system Synthesis of binder resin (C-1)

After adding and dissolving 600 g of propylene glycol monomethyl ether acetate to 307.0 g of the compound of Formula 1-1-1 of Preparation Example 1, 78 g of biphenyltetracarboxylic dianhydride and 1 g of tetraethyl ammonium bromide were mixed and the temperature was gradually raised to 110 The reaction was carried out at ~115 °C for 4 hours. After confirming the disappearance of the acid anhydride group, 38.0 g of 1,2,3,6-tetrahydrophthalic anhydride was mixed and reacted at 90° C. for 6 hours to polymerize the cardo-based binder resin. The disappearance of the anhydride was confirmed by the IR spectrum. Weight average molecular weight: 3500

Device: HLC-8120GPC (manufactured by Toso Co., Ltd.)

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

Column temperature: 40℃

Mobile phase solvent: tetrahydrofuran

Flow rate: 1.0 ml/min

Injection volume: 50 μl

Detector: RI

Measurement sample concentration: 0.6 mass % (solvent = tetrahydrofuran)

Calibration standard material: TSK STANDARD POLYSTYRENE F-40, F-4, F-1, A-2500, A-500 (manufactured by Tosoh Corporation)

Ratio of the weight average molecular weight and number average molecular weight obtained above was made into molecular weight distribution (Mw/Mn).

production example 3: acrylic alkali-soluble resin

A flask equipped with a stirrer, a thermometer reflux cooling tube, a dropping funnel and a nitrogen introduction tube was prepared, and as a monomer dropping funnel, 74.8 g (0.20 mole) of benzylmaleimide, 43.2 g (0.30 mole) of acrylic acid, and 118.0 of vinyltoluene were prepared. g (0.50 mol), t-butylperoxy-2-ethylhexanoate 4g, propylene glycol monomethyl ether acetate (PGMEA) 40g, prepared by stirring and mixing, and as a chain transfer agent dropping tank, n-dodecanthiol 6g, PGMEA 24g was put and stirred and mixed was prepared. Thereafter, 395 g of PGMEA was introduced into the flask, the atmosphere in the flask was changed from air to nitrogen, and the temperature of the flask was raised to 90° C. while stirring. Then, the monomer and the chain transfer agent were started dripping from the dropping lot. The dropping proceeds for 2 h while maintaining 90 ° C, and after 1 h, the temperature is raised to 110 ° C and maintained for 3 h, and then a gas introduction tube is introduced to bubbling the oxygen/nitrogen = 5/95 (v/v) mixed gas. started Next, 28.4 g of glycidyl methacrylate [(0.10 mol), (33 mol% based on the carboxyl group of acrylic acid used in this reaction)], 2,2'-methylenebis(4-methyl-6-t-butylphenol ) 0.4 g and 0.8 g of triethylamine were put into the flask, and the reaction was continued at 110° C. for 8 hours to obtain Resin A having a solid content acid value of 70 mgKOH/g. The weight average molecular weight in terms of polystyrene measured by GPC was 16,000, and the molecular weight distribution (Mw/Mn) was 2.3.

Example 1 to 4 comparative example 1 to 5: Preparation of blue photosensitive resin composition

According to the composition of Table 1 below, Examples 1 to 4 Blue photosensitive resin compositions of Comparative Examples 1 to 5 were prepared.

[Table 1]

Manufacture of color filters

Color filters were prepared using the metal oxide photosensitive resin compositions prepared in Examples 1 to 4 and Comparative Examples 1 to 5. That is, each of the self-luminous photosensitive resin compositions was applied on a glass substrate by spin coating, placed on a heating plate, and maintained at a temperature of 100° C. for 3 minutes to form a thin film.

Then, a test photomask having a transmission pattern of 20 mm x 20 mm square and a line/space pattern of 1 to 100 μm was placed on the thin film, and ultraviolet rays were irradiated with an interval 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 in an atmospheric atmosphere using an ultra-high pressure mercury lamp (trade name USH-250D) manufactured by Ushio Denki Co., Ltd., and no special optical filter was used.

The thin film irradiated with ultraviolet light was developed by immersing it in a developing solution of an aqueous KOH solution having a pH of 10.5 for 80 seconds. The glass plate coated with this thin film was washed with distilled water, dried by blowing nitrogen gas, and heated in a heating oven at 150° C. for 10 minutes to prepare a color filter pattern. The film thickness of the color pattern prepared above was 5.0 μm.

Experimental example 1. Vacuum Dry Stain Evaluation

On a glass substrate, the blue photosensitive resin compositions of Examples 1 to 4 and Comparative Examples 1 to 5 were coated on a 2-inch square glass substrate (“EAGLE XG”, manufactured by Corning) by spin coating, and then Vacuum Dry (Shindo Kiyeon, Pressure condition 65pa) After the process, check whether there is any stain on the coating surface.

< Evaluation criteria for vacuum dry stains >

- Non-staining : ○

- Staining: X

Experimental example 2. Vacuum Dry Time Evaluation

On a glass substrate, the blue photosensitive resin composition having the composition of Examples 1 to 4 and Comparative Examples 1 to 5, respectively, was coated on a 2-inch square glass substrate ("EAGLE XG", manufactured by Corning) by spin coating, and then vacuum dried. (Shindo Engineering & Technology) Measure the time required to reach 65 Pa after putting the coated substrate into the equipment.

< Evaluation Criteria for Vacuum Dry Time>

Less than 25 seconds: OK - More than 25 seconds: NG

If the vacuum dry time is more than 25 seconds, the vacuum dry take time (Tack-time) becomes longer and the mass productivity is lowered.

Experimental example 3. PMI ( Finmura index index) evaluation

After vacuum-drying the coated substrate, measure the color (By value) for the part with and without pins.

PMI (Pinmura Index Index) is calculated by multiplying the absolute value of the value obtained by subtracting the color of the flat portion without pins by the color of the pin portion with pins by 1,000.

When PMI (Pin Mura Index Index) is 3 or less, Mura by pins does not occur during vacuum drying.

PMI = l(color of flat plate - (color of pin))l x 1000

Flat part: The part without pins when Vaccuum Dry

[Table 2]

As can be seen from the results of Table 2, the color filters formed of the blue photosensitive resin compositions of Examples 1 to 4 did not generate vacuum dry stains, exhibited excellent vacuum dry time, and PMI (Pinmura index index) Excellent results were also obtained in the evaluation.

On the other hand, as can be seen from the results of Table 2, in Comparative Examples 1 to 5, in which the solvent (A) having a boiling point of 100 to 169 °C and the solvent (B) having a boiling point of 170 to 250 °C were not mixed and used, Comparative Examples As in 1, Comparative Example 5, Vacuum Dry stains did not occur, or Vacuum Dry stains did not occur as in Comparative Examples 2 to 4, but it was confirmed that the vacuum dry required time was excessively slow.

Claims (15)

A color filter comprising a blue pattern layer made of a blue photosensitive resin composition including scattering particles, a blue colorant, and a cardo-based binder resin, a photopolymerizable compound, a photoinitiator, and a solvent as a binder resin,
The solvent includes a solvent (A) having a boiling point of 100 to 169 °C and a solvent (B) having a boiling point of 170 to 250 °C,
The solvent (A) contains propylene glycol monomethyl ether acetate,
The solvent (B) contains 1,3-butylene glycol diacetate,
In the blue pattern layer made of the blue photosensitive resin composition, the value of the Pinmura index index (PMI) calculated by Equation 1 below is 1.81 or less,
A color filter characterized in that it prevents the mura phenomenon caused by pins:
[Equation 1]
PMI = ｜(color of plate part) - (color of pin part)｜x 1000
In Equation 1 above,
The flat portion means a portion without pins in the blue pattern layer, and the pin portion means a portion with pins. The method according to claim 1,
The scattering particles include a metal oxide having an average particle diameter of 10 to 1000 nm, a color filter. The method according to claim 1,
The scattering particles are 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 1 selected from the group consisting of A color filter comprising more than one species. The method according to claim 1,
The blue photosensitive resin composition will further include a purple colorant, a color filter. The method according to claim 1,
The blue photosensitive resin composition further comprises a dye, a color filter. The method according to claim 1,
The cardo-based binder resin is a color filter comprising at least one of the compounds represented by the following Chemical Formulas 1-1 and 1-2.
[Formula 1-1]

[Formula 1-2]

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

is;
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.) The method according to claim 1,
The cardo-based binder resin is 9,9-bis (3-cinnamic diester) fluorene (9,9-bis (3-cinnamic diester) fluorene), 9,9-bis (3-cinnamoyl, 4-hyde Roxyphenyl)fluorene (9,9-bis(3-cinnamoil, 4-hydroxyphenyl)fluorene), 9,9-bis(glycidyl methacrylate ether)fluorene (9,9-bis(glycidyl methacrylate ether) fluorene), 9,9-bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester (9,9-bis (3,4-dihydroxyphenyl) fluorene dicinnamic ester), 3,6-diglycidyl meta acrylate ether spiro (fluorene-9,9-xanthene) (3,6-diglycidyl methacrylate ether spiro (fluorene-9,9-xantene)), 9,9-bis (3-allyl, 4-hydroxyphenyl flu Orene) (9,9-bis(3-allyl, 4-hydroxyphenlylfluorene), 9,9-bis(4-allyloxyphenyl)fluorene (`9,9-bis(4-allyloxyphenyl)fluorene) and 9,9 -Bis (3,4-methacrylic diester) fluorene (9,9-bis (3,4-methacrylic diester) fluorine) will include at least one selected from the group consisting of, a color filter. The method according to claim 1,
The blue photosensitive resin composition further comprises an acrylic alkali-soluble resin as a binder resin, the color filter. delete The method according to claim 1,
0.1 to 50% by weight of the scattering particles 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 the photopolymerizable compound and 0.1 to 20% by weight of the photoinitiator, the solvent having a boiling point of 100 to 169°C with respect to the total weight of the blue photosensitive resin composition (A) and a solvent having a boiling point of 170 to 250°C (B) containing 60 to 90% by weight, the color filter. delete The method according to claim 1,
The color filter further comprises at least one selected from the group consisting of a red pattern layer and a green pattern layer. 13. The method of claim 12,
The red pattern layer or the green pattern layer is a color filter comprising quantum dots. 14. The method of claim 13,
The color filter is a color filter, characterized in that the self-luminous color filter. The color filter according to claim 1; and
An image display device comprising a; a light source emitting blue light.