KR20170113335A - Green colored photosensitive resin composition, color filter and display device comprising the same - Google Patents

Abstract

The present invention provides a pigment dispersion composition comprising at least one pigment selected from the group consisting of a green pigment and a yellow pigment and a green pigment containing a black pigment, As the photosensitive composition, when the green photosensitive resin composition is formed into a cured film having a thickness of 2.2 占 퐉, the spectral transmittance at a wavelength of 380 nm to 480 nm and the spectral transmittance at a wavelength of 580 nm to 780 nm are 25% And a spectral transmittance at a wavelength of 560 nm is 30% or more and less than 70%, a color filter manufactured using the green photosensitive resin composition, and a display device including the color filter. The present green photosensitive resin composition is excellent in the effect of preventing reflection of external light, which can replace a polarizing plate in a display device and solves a problem of high color reproducibility and lack of fairness of a conventional green photosensitive resin composition.

Description

TECHNICAL FIELD [0001] The present invention relates to a green light-sensitive resin composition, a color filter manufactured using the green color photosensitive resin composition, and a display device including the color filter.

The present invention relates to a green photosensitive resin composition, a color filter manufactured using the green photosensitive resin composition, and a display element including the color filter.

2. Description of the Related Art In recent years, flexible display devices that can display images even when bent like paper by forming display portions, wirings, and the like on a flexible substrate such as a flexible plastic material have been recently spotlighted.

Flexible display devices have various applications ranging from computer monitors to personal portable devices. In particular, organic light emitting displays (OLEDs), which are different from liquid crystal displays (LCDs) Since a light source is not required, it can be implemented with a relatively thin thickness. Therefore, studies on organic light emitting devices related to flexible display devices have been actively conducted.

On the other hand, in order for a flexible display device to be actually applied, full color can be realized, power consumption should be small, and it should be easily read outdoors when compared with various display products.

In this sense, organic light emitting devices are the most useful resources as light sources for flexible display devices because they have the advantages of full color implementation, low power consumption, and fast response speed. Current organic light emitting devices include a layer of encapsulation barrier for protecting the organic light emitting device from oxygen and moisture and a polarizer for maintaining a high contrast ratio for outdoor readability even outdoors. need.

However, if a polarizing plate having a rigid property is applied, the flexibility of the flexible display device may be reduced. On the other hand, if the polarizer is not applied, the external light is transmitted through the flexible display device and then reflected again, resulting in a mixed color with the light emitted from the organic light emitting device, thereby greatly reducing the contrast ratio under the external light source.

Recently, studies have been actively carried out to improve this. For example, in Korean Patent Laid-Open Publication No. 10-2013-0134494, an ink composition containing a coloring agent, a binder resin, and a block isocyanate group, which includes a green colorant and a yellow colorant, Korean Patent Publication No. 10-2013-0134498 discloses an ink composition containing a colorant, a binder resin and a block isocyanate group, which contains a red colorant and a green colorant. However, in the above-mentioned prior arts, in order to realize high color reproducibility, various color regions are not realized in addition to the disadvantage that the selection range of the color material is limited. Further, in the pattern formation property, there is a lack of fairness such as tearing and undercut, Improvement is required in the related art.

Korean Patent Publication No. 10-2013-0134494 Korean Patent Publication No. 10-2013-0134498

Accordingly, it is an object of the present invention to provide a green photosensitive resin composition which is capable of replacing a polarizing plate and having an excellent effect of preventing reflection of external light while solving the problem of high color reproducibility and lack of fairness of green.

It is another object of the present invention to provide a color filter manufactured using the green photosensitive resin composition and a display device including the color filter.

The present invention provides a pigment dispersion composition comprising at least one pigment selected from the group consisting of a green pigment and a yellow pigment and a green pigment containing a black pigment, Wherein the green photosensitive resin composition has a spectral transmittance at a wavelength of 380 nm to 480 nm and a spectral transmittance at a wavelength of 580 nm to 780 nm of 25% or less when formed into a cured film having a thickness of 2.2 탆, And a spectral transmittance at a wavelength of 560 nm is 30% or more and less than 70%.

In one embodiment, when the green photosensitive resin composition is formed into a cured film having a thickness of 2.2 탆, the spectral transmittance at a wavelength of 380 nm to 480 nm and the spectral transmittance at a wavelength of 580 nm to 780 nm are 25% The spectral transmittance at the nm wavelength may be from 30% to less than 70%.

In one embodiment, the black pigment may be from 0.5 to 10% by weight based on the total solids content of the colorant.

In another embodiment, the weight ratio of the at least one pigment selected from the group consisting of green pigments and yellow pigments to the black pigment may be from 99.9 to 80:20 to 0.1.

In another embodiment, the green photosensitive resin composition comprises 1 to 70% by weight of a pigment dispersion composition, 5 to 80% by weight of an alkali soluble resin, 5 to 50% by weight of a photopolymerizable compound, , 0.1 to 40% by weight of a photopolymerization initiator based on the total solid content of the alkali-soluble resin and the photopolymerizable compound, and 25 to 80% by weight of a solvent based on the green photosensitive resin composition.

In another embodiment, the green pigment is selected from the group consisting of C.I. Pigment Green 36, C.I. Pigment Green 58 and C.I. And Pigment Green 59. [0052] The term " pigment green 59 "

In another embodiment, the yellow pigment is selected from the group consisting of C.I. Pigment Yellow 138, C.I. Pigment Yellow 150 and C.I. And Pigment Yellow 185. [0035]

Another embodiment is a pigment in which the black pigment is a mixture of red, blue and green, C.I. Pigment Black 1, C.I. Pigment Black 7, carbon black, organic black, and titanium black.

The present invention also provides a color filter manufactured using the green photosensitive resin composition.

The present invention also provides a display device comprising the color filter.

In one embodiment, the display element may be a flexible display element.

In another embodiment, the display element may be an organic light emitting element.

The green light-sensitive resin composition of the present invention is excellent in the effect of preventing reflection of external light, thereby being able to replace a polarizer in a display device. Further, it is also characterized by solving the problems of high reproducibility of green color and lack of fairness of the conventional green photosensitive resin composition. In particular, when the green photosensitive resin composition is formed into a cured film having a thickness of 2.2 탆, the spectral transmittance at a wavelength of 380 nm to 480 nm and the spectral transmittance at a wavelength of 580 nm to 780 nm are 25% Has a spectral transmittance of 30% or more and less than 70%. When the green photosensitive resin composition is formed into a cured film having a thickness of 2.2 탆, the spectral transmittance at wavelengths of 380 nm to 480 nm and the spectral transmittances at wavelengths of 580 nm to 780 nm exceed 25%, and the spectra at wavelengths of 500 nm to 560 nm If the transmittance is 70% or more, the contrast ratio at the time of on / off may be lowered due to reflection of external light. If the spectral transmittance at 500 nm to 560 nm is less than 30%, the color purity and efficiency of the light source may be lowered.

1 to 2 show the transmittance according to wavelength as a result of Experimental Example 2. Particularly, FIG. 1 is a graph showing the spectral transmittance in the visible light region in the range of 380 to 780 nm as a result of Experimental Example 2, and FIG. 2 is a graph showing the spectral transmittance in the visible light region in the range of 500 nm to 560 nm Graph.

The present invention relates to a green photosensitive resin composition, a color filter manufactured using the green photosensitive resin composition, and a display element including the color filter.

The present invention relates to a composition for a green photosensitive resin composition, wherein the pigment dispersion composition contains at least one selected from the group consisting of a green pigment and a yellow pigment, and a black pigment, It is a feature that can be replaced.

Hereinafter, the present invention will be described in detail.

Pigment dispersion composition

The pigment dispersion composition may be contained in an amount of 1 to 70% by weight, preferably 2 to 60% by weight, and more preferably 3 to 50% by weight based on the total weight of the solid content of the green photosensitive resin composition.

The pigment (a1) contained in the pigment dispersion composition essentially comprises at least one pigment selected from the group consisting of a green pigment and a yellow pigment and a black pigment. The weight ratio of the at least one pigment selected from the group consisting of the green pigment and the yellow pigment to the black pigment may be 99.9 to 80:20 to 0.1, preferably 99.5 to 90: 10 to 0.5.

The black pigment which can be used in the present invention can be used without any particular limitation, for example, a pigment mixed with red, blue and green, CI Pigment Black 1 and 7, carbon black, organic black and Titanium black, and the like, may be used alone or in combination of two or more, preferably one selected from carbon black and organic black.

In the present invention, the black pigment may be 0.5 to 10% by weight based on the total weight of the solid matter of the color material, and the color material means a dye and a pigment contained in the pigment dispersion composition. When the above range is satisfied, it can be advantageous in terms of the effect of preventing reflection of external light and visibility.

The pigment (a1)

The green pigments of the present invention are C.I. Pigment Green 10, 15, 25, 36, 47, 58 and 59, among which C.I. Pigment Green 36, C.I. Pigment Green 58 and C.I. Pigment Green 59 is preferred.

The yellow pigment of the present invention is a yellow pigment. Pigment Yellow 13, 20, 24, 31, 53, 83, 86, 93, 94, 109, 110, 117, 125, 129, 137, 138, 139, 147, 148, 150, 153, 154, 166, 173, 180 And 185, and among them, CI Pigment Yellow 138, C.I. Pigment Yellow 150 and C.I. Pigment Yellow 185 is preferred.

The black pigment of the present invention is a pigment mixed with red, blue and green, Pigment Black 1, C.I. Pigment Black 7, Carbon Black, Organic Black Pigment, and Titanium Black Pigment. Of these, carbon black is preferable.

More specifically, the black pigment may be prepared by mixing a carbon black and two or more colored pigments to prepare a milled colored dispersion. Examples of usable carbon black include CHBK-17 from Mikuni Color; HS, SISO FMHF-HS, Sisato FMHEF-HS, Sisato FMHF-HS, Sisato FMHF-HS, Cysto SOFEF, Cysto VGPF, Cysto SVHSRF-HS, and Cysto SSRF; Diagram Black, Diagram Black N339, Diagram Black SH, Diagram Black H, Diagram LH, Diagram HA, Diagram SF, Diagram N550M, Diagram M, Diagram E, Diagram G, Diagram R, Diagram N760M, Diagram LR , # 2700, # 2600, # 2400, # 2350, # 2300, # 2200, # 1000, # 980, # 900, MCF88, # 52, # 50, # 47, # 45, # 45L, # 25, , # 95, # 3030, # 3050, MA7, MA77, MA8, MA11, OIL7B, OIL9B, OIL11B, OIL30B, and OIL31B; PRINTEX-55, PRINTEX-55, PRINTEX-45, PRINTEX-35, PRINTEX-55, PRINTEX-85, PRINTEX-75, PRINTEX- SPECIAL BLACK-350, SPECIAL BLACK-250, SPECIAL BLACK-100, and LAMP BLACK-101; PRINTEX-25, PRINTEX-200, PRINTEX-40, PRINTEX-30, PRINTEX-3, PRINTEX-A; SPECIAL BLACK-550; RAVEN-1080 ULTRA, RAVEN-1060ULTRA, RAVEN-1060ULTRA, RAVEN-1040, RAVEN-1035, RAVEN-1020, RAVEN-1000, RAVEN-890H, RAVEN-890, RAVEN- 420, RAVEN-410, RAVEN-850, RAVEN-820, RAVEN-790ULTRA, RAVEN-780ULTRA, RAVEN-760ULTRA, RAVEN-520, RAVEN-500, RAVEN-460, RAVEN- RAVEN-1250, RAVEN-1200, RAVEN-1190ULTRA, and RAVEN-1170.

The carbon black is not particularly limited as long as it is a light-shielding pigment, and known carbon black can be used. Specific examples of the carbon black that is the black pigment include channel black, furnace black, thermal black, lamp black, and the like.

The content of the pigment (a1) may be in the range of 1 to 70% by weight, preferably 2 to 60% by weight based on the total weight of the solid content in the pigment dispersion composition (A). When the content of the pigment is in the range of 1 to 70% by weight, the viscosity is low, the storage stability is excellent, and the dispersion efficiency is high, which is effective for increasing the contrast ratio.

It is preferable to use a pigment dispersion in which the particle diameter of the pigment is uniformly dispersed. An example of a method for uniformly dispersing the particle diameter of the pigment includes a method of dispersing the pigment dispersion (a2) by containing the pigment dispersant (a2). According to this method, a pigment dispersion in which the pigment is uniformly dispersed in a solution can be obtained have.

The pigment dispersant (a2)

The pigment dispersant (a2) is added for maintenance of deaggregation and stability of the pigment, and any of those generally used in the art can be used without limitation. (Hereinafter referred to as an acrylic dispersant) containing BMA (butyl methacrylate) or DMAEMA (N, N-dimethylaminoethyl methacrylate). At this time, it is preferable to apply the acrylic dispersant prepared by a living control method as disclosed in Korean Patent Laid-Open Publication No. 2004-0014311. DISCLOSURE OF INVENTION It is an object of the present invention to provide an acrylic dispersant, 2000, DISPER BYK-2001, DISPER BYK-2070, and DISPER BYK-2150.

The acrylic dispersants exemplified above may be used alone or in combination of two or more. As the pigment dispersant (a2), other resin type pigment dispersants other than the acrylic dispersant may be used. The other resin type pigment dispersing agent may be a known resin type pigment dispersing agent, especially a polycarboxylic acid ester such as polyurethane, polyacrylate, unsaturated polyamide, polycarboxylic acid, polycarboxylic acid (partial) Amine salts of polycarboxylic acids, alkylamine salts of polycarboxylic acids, polysiloxanes, long chain polyaminoamide phosphate salts, esters of hydroxyl group-containing polycarboxylic acids and their modified products, or free ) Oil-based dispersants such as amides formed by reaction of a polyester having a carboxyl group with poly (lower alkyleneimine) or salts thereof; Soluble resin or water-soluble polymer compound such as (meth) acrylic acid-styrene copolymer, (meth) acrylic acid- (meth) acrylate ester copolymer, styrene-maleic acid copolymer, polyvinyl alcohol or polyvinylpyrrolidone; Polyester; Modified polyacrylates; Adducts of ethylene oxide / propylene oxide, and phosphate esters.

DISPER BYK-161, DISPER BYK-162, DISPER BYK-163, DISPER BYK-160, BYK (trade name) 164, DISPER BYK-166, DISPER BYK-171, DISPER BYK-182, DISPER BYK-184; EFKA-4060, EFKA-4060, EFKA-4055, EFKA-4055, EFKA-4055, EFKA-4020, EFKA-4015, EFKA-4060, EFKA- 4330, EFKA-4400, EFKA-4406, EFKA-4510, EFKA-4800; SOLSPERS-24000, SOLSPERS-32550, NBZ-4204/10 from Lubirzol; Hinoact T-6000, Hinoact T-7000, Hinoact T-8000; available from Kawaken Fine Chemicals; AJISPUR PB-821, Ajisper PB-822, Ajisper PB-823 manufactured by Ajinomoto; FLORENE DOPA-17HF, fluorene DOPA-15BHF, fluorene DOPA-33, and fluorene DOPA-44 are trade names of Kyoeisha Chemical Co., In addition to the above acrylic dispersant, other resin type pigment dispersants may be used alone or in combination of two or more thereof, or may be used in combination with an acrylic dispersant.

The amount of the pigment dispersant (a2) to be used is in the range of 5 to 60 parts by weight, more preferably 15 to 50 parts by weight, based on 100 parts by weight of the solid content of the pigment (a1). When the content of the pigment dispersant (a2) satisfies the above-described range, it may be advantageous in terms of viscosity and atomization of the pigment, and the possibility of problems such as gelation after dispersion may be lowered.

The dispersion aid (a3)

The dispersing aid (a3) refers to a preparation which disperses the pigment into fine particles to prevent re-aggregation. The dispersion auxiliary is effective for forming a colored layer having a high contrast ratio and an excellent transmittance.

Examples of the dispersion aid that can be used in the present invention include 1,8-diamino-4,5-dihydroxyanthraquinone, 1,5-bis {[2- (diethylamino) ethyl] (4-hydroxyphenyl) ethyl] amino} anthra-9,10-quinone, 1,4-bis -Bis {[2- (dimethylamino) ethyl] amino} -5,8-dihydroxyanthra-9,10-quinone, 1,8- dihydroxy- 4- [4- (2- ) Anilino] -5-nitroanthra-9,10-quinone, 1,4-dihydroxy anthraquinone, 1,4-bis (4-butylanilino) -5,8-dihydroxy anthraquinone, 4'- (4-hydroxy-1-anthraquinonylamino) -acetanilide, 1,4-bis [(2,6-diethyl- Bis (3-methylphenyl) amino] -9,10-anthracene dione, 1,4-bis (4-butyl anilino) -5,8-dihydroxy anthraquinone, , 10-anthracene Bis (isopropylamino) anthraquinone, 1,4-bis (methylamino) anthraquinone, 1,4-bis (2,6-diethyl (5-methylsulfonate), 1-anilino-4-hydroxynaphthalene-2-one Hydroxy-4 - [(4-methylphenyl) amino] -9,10-anthracenepione, 1,4-bis (para- tolylamino) anthraquinone, 1- (methylamino) -4- (4-methylanilino) anthracene-9,10-dicarboxylic acid anhydride, anthraquinone, N- [4- [ -Dioion and 1,4,5,8-tetrahydroxyanthraquinone, and the like.

In addition to the above-mentioned dispersion aid, if necessary, a commercially available dispersion aid may be further included. Specific examples thereof include SOLSPERSE-5000, SOLSPERSE-12000 and SOLSPERSE-22000 from Lubrizol, BYK-SYNERGIST 2100, BYK-SINERGIST 2105 from BYK, EFKA-6745 and EFKA-6750 from BASF.

The dispersion aid contains 1 to 30 parts by weight based on 100 parts by weight of the pigment in the colorant. When the content of the dispersing aid satisfies the above range, the inherent color of the pigment dispersion composition may be altered or the possibility of discoloration due to hard bake during the production of the coloring layer may be lowered.

The dispersion solvent (a4)

The dispersion solvent (a4) is not particularly limited and various organic solvents used in the art 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 glycol dialkyl ethers such as diethylene 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 propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, methoxybutyl acetate and methoxypentyl acetate, aromatic hydrocarbons such as benzene, toluene, xylene and mesitylene, Ketone, acetic acid , Ketones such as methyl amyl ketone, methyl isobutyl ketone and cyclohexanone, alcohols such as ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol and glycerin, ethyl 3-ethoxypropionate, Esters such as methyl propionate; and cyclic esters such as? -Butyrolactone. Preferred are alkylene glycol alkyl ether acetates, ketones, esters such as ethyl 3-ethoxypropionate and methyl 3-methoxypropionate, more preferably propylene glycol monomethyl ether acetate, propylene glycol mono Ethyl ether acetate, cyclohexanone, ethyl 3-ethoxypropionate or methyl 3-methoxypropionate.

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

The dispersion solvent may be contained in an amount of 60 to 90% by weight, preferably 70 to 85% by weight based on the total weight of the pigment dispersion composition. When the content of the dispersing solvent is in the above range, the possibility that the storage stability of the pigment dispersion composition becomes poor may be reduced.

The dispersion resin (a5)

The dispersion resin (a5) can be added selectively as a dispersion medium of the pigment dispersion composition (A), and when the dispersion resin (a5) is used in combination with the dispersion agent (a2) It is possible to manufacture. In the case of dispersing resin, it is possible to use without limitation as long as it can function as a dispersion medium. However, in consideration of the developability of the green photosensitive resin composition prepared from the pigment dispersion composition, it is preferable that the acid value be present in order to have solubility in an alkali developing solution.

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. (B1) having a carboxyl group and an unsaturated bond and a compound (b2) having an unsaturated bond capable of copolymerizing with the compound (b1) in the case of a dispersion resin having an acid value.

Specific examples of the compound (b1) having a carboxylic acid group and an unsaturated bond include monocarboxylic acids such as acrylic acid, methacrylic acid and crotonic acid; Dicarboxylic acids such as fumaric acid, mesaconic acid and itaconic acid; And an anhydride of the dicarboxylic acid; (meth) acrylates of a polymer having a carboxyl group and a hydroxyl group at both terminals such as? -carboxypolycaprolactone mono (meth) acrylate, and acrylic acid and methacrylic acid are preferable. In the present invention, (meth) acrylate refers to acrylate, methacrylate, or both.

The compounds exemplified as the compound (b1) may be used alone or in combination of two or more. The compound (b2) having an unsaturated bond capable of copolymerizing with the compound (b1) may be, for example, styrene, vinyltoluene,? -Methylstyrene, p-chlorostyrene, o-methoxystyrene, m- -Methoxy styrene, o-vinyl benzyl methyl ether, m-vinyl benzyl methyl ether, p-vinyl benzyl methyl ether, o-vinyl benzyl glycidyl ether, m- Aromatic vinyl compounds such as diesters; Propyl (meth) acrylate, n-butyl (meth) acrylate, i-butyl (meth) acrylate, alkyl (meth) acrylates such as sec-butyl (meth) acrylate or t-butyl (meth) acrylate; (Meth) acrylate, cyclopentyl (meth) acrylate, cyclohexyl (meth) acrylate, 2-methylcyclohexyl (meth) acrylate, tricyclo [5.2.1.0 2,6] decan- Alicyclic (meth) acrylates such as dicyclopentanyloxyethyl (meth) acrylate or isobornyl (meth) acrylate; Aryl (meth) acrylates such as phenyl (meth) acrylate or benzyl (meth) acrylate; Hydroxyalkyl (meth) acrylates such as 2-hydroxyethyl (meth) acrylate or 2-hydroxypropyl (meth) acrylate; N-cyclohexylmaleimide, N-benzylmaleimide, N-phenylmaleimide, No-hydroxyphenylmaleimide, Nm-hydroxyphenylmaleimide, Np-hydroxyphenylmaleimide, No-methylphenylmaleimide, Nm N-substituted maleimide-based compounds such as methylphenyl maleimide, Np-methylphenyl maleimide, No-methoxyphenyl maleimide, Nm-methoxyphenyl maleimide and Np-methoxyphenyl maleimide; Unsaturated amide compounds such as (meth) acrylamide and N, N-dimethyl (meth) acrylamide; 3- (methacryloyloxymethyl) -2-trifluoromethyl oxetane, 3- (methacryloyloxymethyl) oxetane, 3- (methacryloyloxymethyl) 2- (methacryloyloxymethyl) oxetane, 2- (methacryloyloxymethyl) -4-trifluoromethyloxetane and the like Unsaturated oxetane compounds, and the like.

The compounds exemplified as the compound (b2) may be used alone or in combination of two or more.

The dispersion resin is contained in an amount of 5 to 60 parts by weight, preferably 10 to 50 parts by weight, based on 100 parts by weight of the pigment solid content in the colorant. When the content of the dispersing resin satisfies the above range, the viscosity of the dispersing resin may be increased or the possibility of becoming an atomized pigment dispersing composition may be lowered.

The dye (a6)

The pigment dispersion composition may optionally contain a dye, and the dye may be used without limitation as long as it has solubility in an organic solvent. It is preferable to use a dye which has solubility in an organic solvent and can ensure reliability such as solubility in an alkali developing solution, heat resistance and solvent resistance. Examples of the dye include acid dyes having an acidic group such as sulfonic acid and carboxylic acid, salts of an acidic dye and a nitrogen-containing compound, sulfonamides of an acidic dye and derivatives thereof, and azo, Based acid dyes and derivatives thereof.

Preferably, the dye is a compound classified as a dye in a color index (published by The Society of Dyers and Colourists), or a known dye described in a dyeing note (coloring yarn).

Specific examples of the dye include,

C.I. As solvent dyes,

C.I. Solvent Yellow 4, 14, 15, 21, 23, 24, 38, 62, 63, 68, 82, 94, 98, 99, and 162;

C.I. Solvent Red 8, 45, 49, 122, 125 and 130;

C.I. Solvent Orange 2, 7, 11, 15, 26 and 56;

C.I. Solvent Blue 35, 37, 59 and 67;

C.I. Green dyes such as Solvent Green 1, 3, 4, 5, 7, 28, 29, 32, 33, 34 and 35 and the like.

C.I. As an acid dye

CI Acid Yellow 1, 3, 7, 9, 11, 17, 23, 25, 29, 34, 36, 38, 40, 42, 54, 65, 72, 73, 76, 79, 98, 99, 111, 112 , 113, 114, 116, 119, 123, 128, 134, 135, 138, 139, 140, 144, 150, 155, 157, 160, 161, 163, 168, 169, 172, 177, 178, 179, 184 , 190, 193, 196, 197, 199, 202, 203, 204, 205, 207, 212, 214, 220, 221, 228, 230, 232, 235, 238, 240, 242, 243 and 251;

CI Acid Red 1, 4, 8, 14, 17, 18, 26, 27, 29, 31, 34, 35, 37, 42, 44, 50, 51, 52, 57, 66, 73, 80, 87, 88 , 91, 92, 94, 97, 103, 111, 114, 129, 133, 134, 138, 143, 145, 150, 151, 158, 176, 182, 183, 198, 206, 211, 215, 216, 217 , 227, 228, 249, 252, 257, 258, 260, 261, 266, 268, 270, 274, 277, 280, 281, 195, 308, 312, 315, 316, 339, 341, 345, 346, 349 , 382, 383, 394, 401, 412, 417, 418, 422 and 426;

C.I. Acid Orange 6, 7, 8, 10, 12, 26, 50, 51, 52, 56, 62, 63, 64, 74, 75, 94, 95, 107, 108, 169 and 173;

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;

C.I. Acid Violet 6B, 7, 9, 17 and 19;

Dyes such as C.I. Acid Green 1, 3, 5, 9, 16, 25, 27, 50, 58, 63, 65, 80, 104, 105, 106 and 109.

As a C.I. direct dye

CI Direct Yellow 2, 33, 34, 35, 38, 39, 43, 47, 50, 54, 58, 68, 69, 70, 71, 86, 93, 94, 95, 98, 102, 108, 109, 129 , 136, 138 and 141;

CI Direct Red 79, 82, 83, 84, 91, 92, 96, 97, 98, 99, 105, 106, 107, 172, 173, 176, 177, 179, 181, 182, 184, 204, 207, 211 , 213, 218, 220, 221, 222, 232, 233, 234, 241, 243, 246 and 250;

C.I. Direct Orange 34, 39, 41, 46, 50, 52, 56, 57, 61, 64, 65, 68, 70, 96, 97, 106 and 107;

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;

C. I. Direct Violet 47, 52, 54, 59, 60, 65, 66, 79, 80, 81, 82, 84, 89, 90, 93, 95, 96, 103 and 104;

Dyes such as C.I. Direct Green 25, 27, 31, 32, 34, 37, 63, 65, 66, 67, 68, 69, 72, 77, 79 and 82.

Also, C.I. As a modantoic dye

CI. Modetto Yellow 5, 8, 10, 16, 20, 26, 30, 31, 33, 42, 43, 45, 56, 61, 62 and 65;

CI Modal Red 1, 2, 3, 4, 9, 11, 12, 14, 17, 18, 19, 22, 23, 24, 25, 26, 30, 32, 33, 36, 37, 41, 43, 45, 46, 48, 53, 56, 63, 71, 74, 85, 86, 88, 90, 94 and 95;

C. I. Modanto orange 3, 4, 5, 8, 12, 13, 14, 20, 21, 23, 24, 28, 29, 32, 34, 35, 36, 37, 42, 43, 47 and 48;

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;

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

Dyes such as C.I. Modatto Green 1, 3, 4, 5, 10, 15, 19, 26, 29, 33, 34, 35, 41, 43 and 53.

The alkali-soluble resin (B)

The alkali-soluble resin (B) should be soluble in the solvent of the present invention and reactive to the action of light or heat. The kind of the acrylic copolymer which functions as a binder resin for the colorant and is soluble in an alkaline developing solution can be used without particular limitation.

The alkali-soluble resin may be a copolymer of a carboxyl group-containing monomer and other monomer copolymerizable with the monomer. The carboxyl group-containing monomer may be, for example, an unsaturated carboxylic acid such as an unsaturated polycarboxylic acid having at least one carboxyl group in a molecule such as an unsaturated monocarboxylic acid, an unsaturated dicarboxylic acid or an unsaturated tricarboxylic acid. The unsaturated monocarboxylic acid may be, for example, acrylic acid, methacrylic acid, crotonic acid,? -Chloroacrylic acid, cinnamic acid, and the like. The unsaturated dicarboxylic acid may be, for example, maleic acid, fumaric acid, itaconic acid, citraconic acid and mesaconic acid. The unsaturated polycarboxylic acid may be an acid anhydride, specifically maleic anhydride, itaconic anhydride and citraconic anhydride. The unsaturated polycarboxylic acid may also be mono (2-methacryloyloxyalkyl) ester, and examples thereof include mono (2-acryloyloxyethyl) succinate, mono (2-methacryloyloxyethyl) ), Phthalic acid mono (2-acryloyloxyethyl), phthalic acid mono (2-methacryloyloxyethyl), and the like. In addition, the unsaturated polycarboxylic acid may be mono (meth) acrylate of a dicarboxylic polymer at both ends, for example,? -Carboxypolycaprolactone monoacrylate and? -Carboxypolycaprolactone monomethacrylate have. The carboxyl group-containing monomers may be used individually or in combination of two or more. Specific examples of the 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 methacrylate, 3-hydroxybutyl acrylate, 3-hydroxybutyl methacrylate, 4-hydroxybutyl acrylate, 4-hydroxybutyl methacrylate, Acrylate, benzyl acrylate, benzyl methacrylate, cyclohexyl acrylate, cyclohexyl methacrylate, phenyl acrylate, phenyl methacrylate, 2-methoxyethyl acrylate, 2-methoxyethyl 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, dicyclopentadienyl methacrylate, 2-hydroxy-3-phenoxy Acrylate, 2-hydroxy-3-phenoxypropyl methacrylate, unsaturated carboxylic acid esters such as glycerol monoacrylate and glycerol monomethacrylate; 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; Unsaturated imides such as maleimide, N-phenylmaleimide and N-cyclohexylmaleimide; Aliphatic conjugated dienes such as 1,3-butadiene, isoprene and chloroprene; Polystyrene, polymethyl acrylate, polymethyl methacrylate, poly-n-butyl acrylate, poly-n-butyl methacrylate, polysiloxane having a monoacryloyl group or monomethacryloyl group at the end of the polymer molecular chain Macromers and the like. These monomers may be used individually or in combination of two or more.

Therefore, the alkali-soluble resin is preferably a copolymer of (meth) acrylic acid / methyl (meth) acrylate, (meth) acrylic acid / benzyl (meth) acrylate copolymer, (meth) acrylic acid / 2-hydroxyethyl (Meth) acrylate / polymethyl (meth) acrylate / benzyl (meth) acrylate copolymer, a (meth) acrylic acid / methyl (meth) acrylate / polystyrene macromonomer copolymer, (Meth) acrylic acid / benzyl (meth) acrylate / polystyrene macromonomer copolymer, (meth) acrylic acid / benzyl (meth) acrylate / polymethyl (meth) acrylate macromonomer copolymer, (Meth) acrylic acid / 2-hydroxyethyl (meth) acrylate / benzyl (meth) acrylate / polystyrene macromonomer copolymer, Acrylic acid / styrene / benzyl (meth) acrylate / N-phenylmaleimide copolymer, (meth) acrylic acid / succinic acid mono (2-acryloyloxy) acrylate / polymethyl (meth) acrylate macromonomer copolymer, Acrylic acid / succinic acid mono (2-acryloyloxyethyl) / styrene / allyl (meth) acrylate / N-phenylmaleimide copolymer / styrene / benzyl (Meth) acrylic acid / benzyl (meth) acrylate / N-phenylmaleimide / styrene / glycerol mono (meth) acrylate copolymer. The (meth) acrylate means acrylate or methacrylate.

(Meth) acrylic acid / benzyl (meth) acrylate copolymer, (meth) acrylic acid / benzyl (meth) acrylate / styrene copolymer, (meth) acrylic acid / methyl Methacrylic acid / methyl (meth) acrylate / styrene copolymer is preferably used.

The alkali-soluble resin should have a weight average molecular weight of 5,000 to 50,000, preferably 8,000 to 40,000, more preferably 10,000 to 10,000, as measured by gel permeation chromatography (GPC) using tetrahydrofuran as an eluting solvent. To 30,000. When the weight average molecular weight of the alkali-soluble resin is in the range of 5,000 to 50,000, the hardness of the coating film is improved, the residual film ratio is excellent, and the good solubility of the developer in the unexposed area and the improved resolution can be shown. Also, the acid value is 50 to 150 (mgKOH / g), preferably 60 to 140, and more preferably 80 to 130. Within the acid value range, the alkali-soluble resin has improved solubility in a developing solution, so that the unexposed portion can be easily dissolved and highly sensitized, and a pattern of the exposed portion can remain to improve the residual film ratio.

The alkali-soluble resin may be contained in an amount of 5 to 80% by weight, preferably 10 to 60% by weight, based on the total weight of the solid components in the green photosensitive resin composition. When the above-mentioned range is satisfied, there is a low possibility that the residual film rate and reliability are lowered, and pattern formation can be facilitated.

Photopolymerization  The compound (C)

The photopolymerizable compound is a compound that can be polymerized by an active radical or an acid generated from a photopolymerization initiator upon irradiation with light, and may be a monofunctional or polyfunctional polymerizable compound depending on the number of functional groups. Examples of the monofunctional polymerizable compound include nonylphenylcarbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexylcarbitol acrylate, 2-hydroxyethyl acrylate and N- Lt; / RTI > Examples of the bifunctional polymerizable compound include 1,6-hexanediol di (meth) acrylate, ethylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, triethylene glycol di (Meth) acrylate, hexanediol di (meth) acrylate, diethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, Acrylate, triethylene glycol di (meth) acrylate, tetraethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, dipropylene glycol diacrylate, tripropylene glycol diacrylate, Pentyl glycol diacrylate and propoxylate neopentyl glycol diacrylate, and the like. Examples of the trifunctional polymerizable compound include trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, ethoxylate trimethylolpropane tri (meth) acrylate, propoxylate trimethylolpropane tri ) Acrylate, glyceryl propoxylate triacrylate, isocyanurate triarylate, and the like. Examples of the tetrafunctional polymerizable compound include pentaerythritol tetra (meth) acrylate and dimethylol propane tetra (methyl) acrylate. The pentafunctional polymerizable compound may be dipentaerythritol penta (meth) acrylate, and the hexafunctional photopolymerizable compound may be dipentaerythritol hexa (meth) acrylate. Of these, as the photopolymerizable compound, a bifunctional or higher functional polyfunctional polymerizable compound can be preferably used, and in particular, a polyfunctional polymerizable compound having five or more functionalities can be preferably used.

The photopolymerizable compound is contained in an amount of 5 to 50% by weight, and more preferably 7 to 45% by weight based on the total weight of the solid components in the green photosensitive resin composition. When the photopolymerizable compound is contained in the range as described above, the strength and smoothness of the pixel portion can be improved.

Light curing Initiator (D)

The photopolymerization initiator in the present invention is a compound that generates radicals capable of initiating polymerization of the polyfunctional monomer of the photopolymerizable compound by exposure to radiation such as visible light, ultraviolet light, deep ultraviolet light, electron beam, and X-ray. Examples of such photopolymerization initiators include acetophenone-based compounds, benzophenone-based compounds, nonimidazole-based compounds, triazine-based compounds, oxime ester-based compounds, and thioxanthone-based compounds. In the present invention, the photopolymerization initiator may be used alone or in combination of two or more, and it is preferable to use at least one oxime ester compound.

Specific examples of the acetophenone-based compound include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylketal, 2-hydroxy- 1- [4- 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropane-1-one, 2-methylcyclohexyl phenyl ketone, 2-methyl-1- [4- (1-methylvinyl) phenyl] propane-1-one 2- (4-methylbenzyl) -2- (dimethylamino) -1- (4-morpholinophenyl) butan-1-one.

Examples of the benzophenone compound include benzophenone, methyl 0-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl-4'-methyldiphenylsulfide, 3,3 ', 4,4'-tetra tert-butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone, and the like.

Specific examples of the imidazole compound include 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenylbimidazole, 2,2'-bis (2,3- Phenyl) -4,4 ', 5,5'-tetraphenylbiimidazole, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetra (alkoxyphenyl) , 2,2'-bis (2,6-dichlorophenyl) -4,4 ', 5,5'-tetra (trialkoxyphenyl) 4 ', 5,5'-tetraphenyl-1,2'-biimidazole or an imidazole compound in which the phenyl group at the 4,4', 5,5 'position is substituted by a carboalkoxy group. Among them, 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenylbiimidazole, 2,2'-bis (2,3- , 2,2-bis (2,6-dichlorophenyl) -4,4 ', 5,5'-tetraphenyl-1,2'-biimidazole, Is used.

Specific examples of the triazine compound include 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-piperonyl-1,3,5-triazine, (Trichloromethyl) -6- [2- (5-methylfuran-2- (4-methoxystyryl) -1,3,5-triazine, Yl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (furan- , 2,4-bis (trichloromethyl) -6- [2- (4-diethylamino-2-methylphenyl) ethenyl] -1,3,5-triazine, 2,4- ) -6- [2- (3,4-dimethoxyphenyl) ethenyl] -1,3,5-triazine.

Examples of the oxime ester compound include 1,2-octanedione, 1- [4- (phenylthio) phenyl], 2- (O-benzoyloxime), 1- [ carbazol-3-yl] ethanone 1- (O-acetyloxime).

Examples of the thioxanthone compound include 2-isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4- .

The photopolymerization initiator (D) may further include a photopolymerization initiator (d1) to improve the sensitivity of the green photosensitive resin composition of the present invention. The green photosensitive resin composition according to the present invention contains the photopolymerization initiation auxiliary (d1), thereby further increasing the sensitivity and improving the productivity.

As the photopolymerization initiation assistant (d1), for example, at least one compound selected from the group consisting of an amine compound, a carboxylic acid compound, and an organic sulfur compound having a thiol group can be preferably used.

As the amine compound, an aromatic amine compound is preferably used. Specific examples of the amine compound include aliphatic amine compounds such as triethanolamine, methyldiethanolamine and triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, 4- Dimethylaminobenzoic acid, 2-ethylhexyl 4-dimethylaminobenzoate, 2-dimethylaminoethyl benzoate, N, N-dimethylparatoluidine, 4,4'-bis (dimethylamino) benzophenone ), 4,4'-bis (diethylamino) benzophenone, and the like.

The carboxylic acid compound is preferably an aromatic heteroacetic acid, and more specifically, it is preferably an aromatic heteroaromatic acid such as phenylthioacetic acid, methylphenylthioacetic acid, ethylphenylthioacetic acid, methylethylphenylthioacetic acid, dimethylphenylthioacetic acid, methoxyphenylthioacetic acid, dimethoxyphenylthio Acetic acid, chlorophenylthioacetic acid, dichlorophenylthioacetic acid, N-phenylglycine, phenoxyacetic acid, naphthylthioacetic acid, N-naphthylglycine, naphthoxyacetic acid and the like.

Specific examples of the organic sulfur compound having a thiol group include 2-mercaptobenzothiazole, 1,4-bis (3-mercaptobutyryloxy) butane, 1,3,5-tris (3-mercaptobutyloxyethyl) 1,3,5-triazine-2,4,6 (1H, 3H, 5H) -thione, trimethylolpropane tris (3-mercaptopropionate), pentaerythritol tetrakis (3-mercaptopropionate), dipentaerythritol hexacis (3-mercaptopropionate), and tetraethylene glycol bis (3-mercaptopropionate) .

The photopolymerization initiator (D) is used in an amount of 0.1 to 40% by weight, preferably 1 to 30% by weight based on the total amount of the alkali-soluble resin (B) and the photopolymerizable compound (C) based on the total solid weight of the green photosensitive resin composition of the present invention. % By weight. In other words, it may contain from 0.1 to 40% by weight of a photopolymerization initiator based on the total solids content of the alkali-soluble resin and the photopolymerizable compound. When the photopolymerization initiator (D) is in the range of 0.1 to 40% by weight, the green photosensitive resin composition has high sensitivity and shortens the exposure time, thereby improving productivity and maintaining high resolution. Further, the strength of the pixel portion formed using the composition of the above-described conditions and the smoothness of the surface of the pixel portion can be improved.

In the case of the photopolymerization initiator (d1), 10 to 100% by weight, preferably 20 to 100% by weight, of the total photopolymerization initiator may be included. When the content of the photopolymerization initiator (d1) in the total photopolymerization initiator satisfies the above-described range, it is possible to reduce the possibility that the sensitivity to the dye is lowered and the pattern is short-circuited during the development process.

When the photopolymerization initiator (d1) is further used, the photopolymerization initiator (d1) is added to the alkali-soluble resin (B) and the photopolymerizable compound (C) based on the total solid weight of the green photosensitive resin composition of the present invention. By weight, preferably 1 to 30% by weight, based on the total weight of the composition. When the amount of the photopolymerization initiator (d1) used is within the range of 0.1 to 40% by weight, the sensitivity of the green photosensitive resin composition becomes higher and the productivity of the color filter formed using the composition is improved.

Solvent (E)

The solvent is not particularly limited as long as it dissolves the green photosensitive resin composition, and in particular, ethers, aromatic hydrocarbons, ketones, alcohols, esters or amides are preferable. Specific examples thereof include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dipropyl ether, diethylene glycol di Butyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol dimethyl ether, dipropylene glycol diethyl ether, dipropylene glycol dipropyl ether and dipropylene glycol Ethers such as dibutyl ether; Aromatic hydrocarbons such as benzene, toluene, xylene, and mesitylene; Ketones such as methyl ethyl ketone, acetone, methyl amyl ketone, methyl isobutyl ketone and cyclohexanone; Alcohols such as ethanol, propanol, butanol, hexanol, cyclohexanol, ethylene glycol and glycerin; Methylcellosolve acetate, ethylcellosolve acetate, ethyl acetate, butyl acetate, amyl acetate, methyl lactate, ethyl lactate, butyl lactate, 3-methoxypropionate, methyl 3-methoxypropionate, Methoxybutyl acetate, ethylene glycol monoacetate, ethylene glycol diacetate, ethylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol Monoacetate, diethylene glycol diacetate, diethylene glycol monobutyl ether acetate, propylene glycol monoacetate, propylene glycol diacetate, propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, ethylene carbonate, propylene carbonate, Lactone Esters and the like. The solvent may be a mixture of one or more selected from the group consisting of the solvents exemplified above. In view of coatability and dryness, the solvent should have a boiling point of 100 to 200 ° C, and propylene glycol monomethyl ether acetate, Propylene glycol monoethyl ether acetate, cyclohexanone, ethyl lactate, butyl lactate, ethyl 3-ethoxypropionate and methyl 3-methoxypropionate are preferable.

The solvent may contain 25 to 80% by weight, preferably 30 to 70% by weight based on the total weight of the green photosensitive resin composition. When it is applied in the above-described range with a coating device such as a roll coater, a spin coater, a slit and spin coater, a slit coater (or a die coater) and a kett, good coating properties can be shown.

Additive (F)

The green photosensitive resin composition of the present invention may further contain additives (F) such as fillers, other polymer compounds, curing agents, adhesion promoters, ultraviolet absorbers, and anti-aggregation agents, in combination with the above components insofar as the object of the present invention is not impaired It is also possible to do.

The filler may be glass, silica, alumina, or the like, but is not limited thereto.

Specific examples of the other polymer compound include a curable resin such as an epoxy resin and a maleimide resin, a thermoplastic resin such as polyvinyl alcohol, polyacrylic acid, polyethylene glycol monoalkyl ether, polyfluoroalkyl acrylate, polyester, polyurethane and the like But is not limited thereto.

The curing agent is used for increasing the curing depth and mechanical strength. Specifically, an epoxy compound, a polyfunctional isocyanate compound, a melamine compound, and an oxetane compound may be used, but the present invention is not limited thereto. Specific examples of the epoxy compound include epoxy resins such as bisphenol A epoxy resin, hydrogenated bisphenol A epoxy resin, bisphenol F epoxy resin, hydrogenated bisphenol F epoxy resin, novolak epoxy resin, other aromatic epoxy resin, alicyclic epoxy resin, Alicyclic or aromatic epoxy compounds, butadiene (co) polymeric epoxides, isoprene (co) polymers other than the brominated derivatives, epoxy resins and brominated derivatives of such epoxy resins, A polymeric epoxide, a glycidyl (meth) acrylate (co) polymer, and triglycidylisocyanurate, but are not limited thereto. Specific examples of the oxetane compound include, but are not limited to, carbonate bisoxetane, xylene bisoxetane, adipate bisoxetane, terephthalate bisoxetane, and cyclohexanedicarboxylic acid bisoxetane. It is not.

The curing agent may be used together with a curing agent in combination with a curing auxiliary compound capable of ring-opening polymerization of the epoxy group of the epoxy compound and the oxetane skeleton of the oxetane compound. Specific examples of the curing auxiliary compound include polyvalent carboxylic acids, polyvalent carboxylic anhydrides, and acid generators. The carboxylic acid anhydrides may be those commercially available as an epoxy resin curing agent. Examples of commercially available epoxy resin curing agents include trade name (ADEKA HARDONA EH-700) (ADEKA INDUSTRIAL CO., LTD.), Trade name (RICACIDO HH) (Manufactured by Shin-Etsu Chemical Co., Ltd.).

The curing agent and the curing auxiliary compound exemplified above may be used alone or in combination of two or more.

Specific examples of the adhesion promoter include vinyltrimethoxysilane, vinyltriethoxysilane, vinyltris (2-methoxyethoxy) silane, N- (2-aminoethyl) -3-aminopropylmethyldimethoxysilane, N Aminopropyltrimethoxysilane, 3-aminopropyltriethoxysilane, 3-glycidoxypropyltrimethoxysilane, 3-glycidoxypropylmethyldimethoxysilane, 2- (2-aminoethyl) (3,4-epoxycyclohexyl) ethyltrimethoxysilane, 3-chloropropylmethyldimethoxysilane, 3-chloropropyltrimethoxysilane, 3-methacryloxypropyltrimethoxysilane, 3- Methoxysilane, 3-isocyanatepropyltrimethoxysilane, and 3-isocyanatepropyltriethoxysilane, or a mixture thereof.

The adhesion promoter may be included in an amount of 0.01 to 10 parts by weight, preferably 0.05 to 2 parts by weight, based on the solid content of the composition.

Specific examples of the ultraviolet absorber include, but are not limited to, 2- (3-tert-butyl-2-hydroxy-5-methylphenyl) -5-chlorobenzothiazole and alkoxybenzophenone.

The anti-aggregation agent may be, for example, sodium polyacrylate, but is not limited thereto

The present invention provides a color filter made of the green photosensitive resin composition. The green photosensitive resin composition may be coated on a substrate, and then the photocured and developed photoresist composition may be patterned.

First, the green photosensitive resin composition is coated on a substrate or a layer of a solid component of a photosensitive resin composition, followed by heating and drying to remove volatile components such as a solvent to obtain a smooth coating film.

The coating method may be carried out by a spin coating method, a flexible coating method, a roll coating method, a slit and spin coating method, a slit coating method, or the like. After application, heating and drying (prebaking), or drying under reduced pressure to evaporate the volatile components such as solvent. The heating temperature is 70 to 200 캜, preferably 80 to 130 캜. The thickness of the coating film after drying by heating is about 1 to 8 占 퐉. Ultraviolet rays are applied to the coating film through a mask to form a desired pattern. At this time, it is preferable to use an apparatus such as a mask aligner or a stepper to uniformly irradiate a parallel light beam onto the entire exposed portion and align the exact position of the mask and the substrate. When ultraviolet light is irradiated, the site irradiated with ultraviolet light is cured. G-line (wavelength: 436 nm), h-line and i-line (wavelength: 365 nm) may be used as the ultraviolet ray. The dose of ultraviolet rays can be appropriately selected according to need, and the present invention is not limited thereto. Upon completion of the curing, the coating film is brought into contact with a developing solution to dissolve and expose the non-visible portion to obtain a cured product having a desired pattern shape.

The present invention also provides a display device comprising the color filter.

Hereinafter, preferred embodiments, comparative examples, and experimental examples are set forth to facilitate understanding of the present invention, but it should be understood that the examples, the comparative examples, and the experimental examples are illustrative of the present invention only, It will be apparent to those skilled in the art that various changes and modifications can be made to the embodiments, comparative examples and experimental examples within the scope and spirit of the present invention, and it is obvious that such variations and modifications fall within the scope of the appended claims.

≪ Preparation of pigment dispersion composition >

Manufacturing example  1. Pigment dispersion composition M1

C.I. 12.0 parts by weight of Pigment Green 59, 5.0 parts by weight of DISPERBYK-2001 (BYK) as a pigment dispersant, 13.0 parts by weight of 4-hydroxy-4-methyl-2-pentanone as a solvent and 70.0 parts by weight of propylene glycol methyl ether acetate And mixed / dispersed by a bead mill for 12 hours to prepare a pigment dispersion composition M1.

Manufacturing example  2. Pigment dispersion composition M2

C.I. 12.0 parts by weight of Pigment Green 58, 5.0 parts by weight of DISPERBYK-2001 (BYK) as a pigment dispersant, 13.0 parts by weight of 4-hydroxy-4-methyl-2-pentanone as a solvent and 70.0 parts by weight of propylene glycol methyl ether acetate And then mixed / dispersed by a bead mill for 12 hours to prepare a pigment dispersion composition M2.

Manufacturing example  3. Pigment dispersion composition M3

C.I. 12.0 parts by weight of Pigment Green 36, 5.0 parts by weight of DISPERBYK-2001 (BYK) as a pigment dispersant, 13.0 parts by weight of 4-hydroxy-4-methyl-2-pentanone as a solvent, and 70.0 parts by weight of propylene glycol methyl ether acetate And mixed / dispersed by a bead mill for 12 hours to prepare a pigment dispersion composition M3.

Manufacturing example  4. Pigment dispersion composition M4

C.I. 12.0 parts by weight of Pigment Yellow 138, 5.0 parts by weight of DISPERBYK-2001 (BYK) as a pigment dispersant, 13.0 parts by weight of 4-hydroxy-4-methyl-2-pentanone as a solvent and 70.0 parts by weight of propylene glycol methyl ether acetate And mixed / dispersed by a bead mill for 12 hours to prepare a pigment dispersion composition M4.

Manufacturing example  5. Pigment dispersion composition M5

C.I. 12.0 parts by weight of Pigment Yellow 150, 4.0 parts by weight of DISPERBYK-2001 (manufactured by BYK) as a pigment dispersant, 44 parts by weight of propylene glycol methyl ether acetate as a solvent and 40 parts by weight of propylene glycol methyl ether were mixed / To prepare a pigment-dispersed composition M5.

Manufacturing example  6. Pigment dispersion composition M6

C.I. , 12 parts by weight of Pigment Yellow 185, 4.0 parts by weight of DISPERBYK-2001 (manufactured by BYK) as a pigment dispersant, 44 parts by weight of propylene glycol methyl ether acetate as a solvent and 40 parts by weight of propylene glycol methyl ether were mixed / To prepare a pigment-dispersed composition M6.

Manufacturing example  7. Pigment dispersion composition M7

20 parts by weight of carbon black, 6 parts by weight of Ajisera PB821 (Ajinomoto Fine Techno Co., Ltd.) as a dispersant, and 74 parts by weight of propylene glycol monomethyl ether acetate as a solvent were mixed / dispersed with a bead mill for 12 hours to prepare a pigment dispersion composition M7 .

Synthetic example  1. Synthesis of alkali-soluble resin

A flask equipped with a stirrer, a thermometer, a reflux condenser, a dropping funnel and a nitrogen inlet tube was charged with 120 parts by weight of propylene glycol monomethyl ether acetate, 80 parts by weight of propylene glycol monomethyl ether, 2 parts by weight of AIBN, 13.0 parts by weight of acrylic acid, 10 parts by weight of acrylate, 57.0 parts by weight of styrene, 20 parts by weight of methyl methacrylate and 3 parts by weight of n-dodecyl mercapto were charged and replaced with nitrogen. Thereafter, the temperature of the reaction solution was elevated to 110 DEG C with stirring, and the reaction was carried out for 6 hours. The alkali-soluble resin thus synthesized had a solid dispersion value of 100.2 mgKOH / g and a weight average molecular weight Mw of about 15110 as measured by GPC.

Example  1 to 6 and Comparative Example  1-4. Preparation of green photosensitive resin composition

A green photosensitive resin composition was prepared with the composition and the content (unit: wt%) shown in Table 1 below.

[Table 1]

 (A) Pigment Dispersion Composition:

  (A1) Production Example 1 (Pigment dispersion composition M1, CI Pigment Green 59)

(A2) Production Example 2 (Pigment dispersion composition M2, CI Pigment Green 58)

(A3) Production Example 3 (Pigment dispersion composition M3, CI Pigment Green 36)

(A4) Production Example 4 (Pigment dispersion composition M4, CI Pigment Yellow 138)

(A5) Production Example 5 (Pigment dispersion composition M5, CI Pigment Yellow 150)

(A6) Production Example 6 (Pigment dispersion composition M6, CI Pigment Yellow 185)

(A7) Production Example 7 (Pigment Dispersion Composition M7, C.I. Carbon Black)

 (B) an alkali-soluble resin (alkali-soluble resin of Synthesis Example 1)

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

(D) Photopolymerization initiator:

 (OXE-01 manufactured by BASF) (D-1) 2-O-benzoyloxime-1- [4- (phenylthio) phenyl]

 (D-2) 2-Methyl-2-morpholino-1- (4-methylthiophenyl) propan-1-one (Irgacure 907 (Ciba Specialty Chemical)

(E) Solvent (propylene glycol monomethyl ether acetate)

Experimental Example  1. Manufacture of color filters

A color filter was prepared using the green photosensitive resin compositions prepared in Examples 1 to 6 and Comparative Examples 1 to 4.

Specifically, each green photosensitive resin composition was coated on a 2 inch square glass substrate ("EAGLE XG", manufactured by Corning) by spin coating, then placed on a heating plate and maintained at 100 ° C. for 3 minutes to form a thin film . Subsequently, a test photomask having a pattern for changing the transmittance in the range of 1 to 100% in steps and a 3 x 3 cm exposure pattern was placed on the thin film and irradiated with ultraviolet rays at a distance of 100 탆 from the test photomask . At this time, the ultraviolet light source was irradiated with a high pressure mercury lamp of 1 KW containing g, h and i lines at an illuminance of 100 mJ / cm 2, 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 2 minutes to develop. The glass plate coated with the thin film was washed with distilled water, and then blown with nitrogen gas, dried, and heated in a heating oven at 200 ° C for 25 minutes to prepare a color filter. The film thickness was measured using a film thickness measuring device (DEKTAK 6M; Veeco), and the measured film thickness was 2.2 μm.

Experimental Example  2. Characterization

2.1 Spectroscopic measurement

The spectral transmittance was measured using a colorimeter (OSP-200, manufactured by Olympus Corporation) after the color filter was manufactured in the same manner as in Example 1 except that the test photomask was not used. Respectively. The spectral transmittance in a visible light range of 380 nm to 780 nm was measured using a colorimeter (OSP-200, manufactured by Olympus Corporation). The results are shown in Table 5, FIGS. 1 and 2.

2.2 Reflectance measurement

A color filter was prepared in the same manner as in Experimental Example 1 except that the test photomask was not used. The 2-degree reflectance was measured on the coated surface through an integrated spherical reflectance meter (Spectrophotometer CM-3700d, manufactured by Konica Minolta) The results are shown in Table 2 below.

[Table 2]

Table 3 shows the evaluation criteria.

[Table 3]

As shown in Table 2, it was confirmed that Examples 1 to 6 are excellent in the external light reflection effect as compared with Comparative Examples 1 to 4.

[Table 4]

[Table 5]

Tables 4 and 5 and FIGS. 1 and 2 show transmittances according to wavelengths according to the above experimental results.

FIG. 1 is a graph showing a spectral transmittance in a visible light region in a range of 380 to 780 nm when the green photosensitive resin composition is formed into a cured film having a thickness of 2.2 .mu.m. FIG. 2 is a graph showing the spectral transmittance of the green photosensitive resin composition in a thickness of 2.2 .mu.m Is a graph showing a spectral transmittance in a visible light region in a range of 500 nm to 560 nm. Table 4 shows the spectral transmittances of some of the visible light ranges from 380 nm to 480 nm and 580 nm to 780 nm and Table 5 shows the spectral transmittances of some of the visible light ranges from 500 nm to 560 nm.

As shown in FIG. 1, in Comparative Examples 1 and 2 in which no black pigment was included, the green photosensitive resin composition had a spectral transmittance at a wavelength of 380 nm to 480 nm and a wavelength of 580 nm to 780 nm at the time of forming a cured film having a thickness of 2.2 탆 Some of the transmittances exceeding 25% and the spectral transmittances at a wavelength of 500 nm to 560 nm exhibited a transmittance of at least 70%, but in the examples including the black pigment, the green photosensitive resin composition was a cured film having a thickness of 2.2 탆 The spectral transmittance at a wavelength of 380 nm to 480 nm and the spectral transmittance at a wavelength of 580 nm to 780 nm were 25% or less and the spectral transmittances at a wavelength of 500 nm to 560 nm were 30% or more and less than 70% .

Claims (11)

A pigment dispersion composition, an alkali-soluble resin, a photopolymerizable compound, a photopolymerization initiator and a solvent,
The pigment dispersion composition is a green photosensitive composition comprising at least one selected from the group consisting of a green pigment and a yellow pigment, and a black pigment,
When the green photosensitive resin composition is formed into a cured film having a thickness of 2.2 탆, the spectral transmittance at a wavelength of 380 nm to 480 nm and the spectral transmittance at a wavelength of 580 nm to 780 nm are 25% or less and the transmittance at a wavelength of 500 nm to 560 nm And a spectral transmittance of 30% or more and less than 70%. The method according to claim 1,
Wherein the black pigment is used in an amount of 0.5 to 10% by weight based on the total weight of solids of the coloring material. The method according to claim 1,
Wherein the weight ratio of the at least one pigment selected from the group consisting of the green pigment and the yellow pigment to the black pigment is 99.9 to 80:20 to 0.1. The method according to claim 1,
Based on the total solid weight of the green photosensitive resin composition,
1 to 70% by weight of a pigment dispersion composition,
5 to 80% by weight of an alkali-soluble resin,
5 to 50% by weight of a photopolymerizable compound,
0.1 to 40% by weight of a photopolymerization initiator based on the total solid content of the alkali-soluble resin and the photopolymerizable compound, and
Wherein the green photosensitive resin composition contains 25 to 80% by weight of a solvent based on the green photosensitive resin composition. The method according to claim 1,
Wherein the green pigment comprises at least one selected from the group consisting of CI Pigment Green 36, CI Pigment Green 58 and CI Pigment Green 59. The method according to claim 1,
Wherein the yellow pigment comprises at least one selected from the group consisting of CI Pigment Yellow 138, CI Pigment Yellow 150, and CI Pigment Yellow 185. The method according to claim 1,
Wherein the black pigment comprises at least one selected from the group consisting of a pigment mixed with red, blue and green, CI Pigment Black 1, CI Pigment Black 7, carbon black, organic black and titanium black , A green photosensitive resin composition. A color filter produced by using the green photosensitive resin composition of any one of claims 1 to 7. A display device comprising the color filter of claim 8. The method of claim 9,
Wherein the display element is a flexible display element. The method of claim 9,
Wherein the display device is an organic light emitting device.

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