KR20130057572A - A colored curable resin composition, color filter and display device - Google Patents

Abstract

PURPOSE: A curable resin composition is provided to have excellent sensitivity, to have excellent flatness after curing, little discoloration, and excellent brightness. CONSTITUTION: A curable resin composition comprises a silicone urethane acrylate-containing curable monomer, binder resin, solvent, and photoinitiator. The photoinitiator comprises an oxime ester-based compound represented by chemical formula 1. The silicon urethane acrylate comprises a compound represented by chemical formula 7. The mount of the silicon urethane acrylate is 1-50wt% and the amount of the photoinitiator is 0.01-10wt%, based on total weight of the composition.

Description

Technical Field [0001] The present invention relates to a curable resin composition for ink-jet, a color filter, and an image display device having the same.

The present invention relates to a curable resin composition for an ink jet, a color filter and an image display apparatus having the same, and more particularly, to a curable resin composition for inkjet, which has excellent flatness of an ejected ink, a color filter, will be.

Most of the color filters used in the image display apparatus are manufactured by the pigment dispersion method. In the pigment dispersion method, a light-shielding material thin film made of chromium or the like is formed by photolithography and development, and blue, rust, and red photosensitive resins are coated on each of the partition walls by spin coating, slit coating, etc. for each color. After that, patterning is performed by photolithography and development, followed by curing.

This method has the advantage that the applied film thickness is uniform, but when the pattern of each color is formed, a loss of about 70% of the applied material is removed, and expensive installation cost of an exposure machine, a developing machine, a curing device, etc. Is required, and also because the process line is long, yield management is difficult. Recently, as the size of the display material substrate increases, the cost of the process and installation equipment is expected to increase.

As an alternative to this, an inkjet method has been proposed. The inkjet method is a technique of spraying the curable resin composition only into the openings of the partition walls formed by using the inkjet head to realize an image in which each ink is colored, and can simultaneously color a plurality of colors including red, green, and blue to produce a manufacturing process, Time and cost can be greatly reduced. In the inkjet method using such a curable resin composition, a specific amount of ink is injected into the pixel openings of the partition walls to satisfy a desired color coordinate or film thickness.

Therefore, it is essential that the resin composition for inkjet for forming a color filter basically has a pattern forming ability and adhesion with a substrate, as well as securing the flatness of the applied film. Furthermore, when a yellowing phenomenon occurs after curing, the resin composition for forming a color filter may affect the color of a colorant originally intended.

In the conventional curable resin composition for inkjets, a thermal polymerization initiator is used, but the thermal polymerization initiator has a problem in that luminance is lowered after curing.

In order to solve these problems, various studies on various photoinitiators have been carried out. Among them, oxime compounds absorb ultraviolet rays and have almost no color, have high radical generation efficiency, and have good stability in the composition.

As the oxime compounds, α-oxooxime derivatives have been disclosed in JP-A-61-118423, JP-A-1-068750 and JP-A-3-004226, and US Pat. No. 4,255,513 Discloses an oxime ester compound using p-dialkylaminobenzene. U.S. Patent No. 4,202,697 discloses an acrylamino-substituted oxime ester compound, and U.S. Patent No. 4,590,145 discloses a benzophenone oxime ester compound. U.S. Patent No. 5,776,996 discloses a β-aminooxime compound, and U.S. Patent No. 6,051,367 discloses an oxime ester compound in which an ethylenically unsaturated group is contained in a molecular structure. In addition, International Patent Publication No. 00/052530 discloses oxime ether, oxime ester, oxime sulfonate compounds, and International Patent Publication No. 02/100903 discloses a process for the production of oxycarboxylic acids by coupling with alkyl acyl ketones, diarylketones or ketocoumarines ≪ / RTI > is disclosed.

Among these oxime compounds, compounds having a long conjugation length and absorbing long wavelength light have a slight color and may affect the color when applied to optical applications. On the other hand, a compound absorbing light having a short wavelength has a low photoreactivity and low efficiency as a photoinitiator.

On the other hand, in the case of the partition wall generally used for the color filter, the repulsion property with the dropped ink is weak, so that the amount of ink cannot be filled in the partition wall or the ink overflows to adjacent pixels, thereby increasing the repulsive force in the partition composition. The method of adding a process to increase the repulsive force, such as by adding a material present or the production of partition walls, such as fluorine plasma treatment.

However, in such a method, the dropping ink does not spread properly in the glass in the pixel due to the repulsive force of the barrier rib, or the color separation occurs due to the separation from the barrier rib after the baking process. Such an additional process is a manufacturing process, Resulting in lower efficiency of time and cost savings. Further, in the conventional curable resin composition, a leveling agent is used as one of methods for improving the composition so as to control the shape of ink in pixels such as color dropout and spacing in a flat manner. However, And problems such as overflowing of the barrier ribs, surface abnormality, and deterioration of intrinsic properties of the curable resin composition occur due to excessive introduction.

Japanese Unexamined Patent Application Publication No. 61-118423 (June 6, 1986) Japanese Laid-Open Patent Publication No. 1-068750 (Mar. 14, 1989) Japanese Unexamined Patent Application Publication No. 3-004226 (1991.01.10) U.S. Patent No. 4,255,513 (Mar. 3, 1981) U.S. Patent No. 4,202,697 (May 15, 1980) U.S. Patent No. 4,590,145 (May 5, 1986) U.S. Patent No. 5,776,996 (July 7, 1998) U.S. Patent No. 6,051,367 (Apr. 18, 2000) International Patent Publication No. 00/052530 (September 20, 2000) International Patent Publication No. 02/100903 (December 19, 2002)

An object of the present invention is to provide a curable resin composition for an ink jet, a color filter, and an image display device having excellent sensitivity, excellent flatness of a film after curing, and no color change and no discoloration phenomenon such as yellowing phenomenon.

In addition, the present invention is to increase the leveling properties of the curable resin composition for inkjet to suppress the color bleeding caused by separation due to the repulsive force with the partition wall after baking, the ink can be made to have a uniform thickness overall In addition, an object of the present invention is to provide a curable resin composition for inkjet, which can overcome partition overflow and physical property degradation due to excessive input, which is a limit of existing leveling agents.

Another object of the present invention is to provide a color filter comprising a black matrix or a color layer formed by coating and curing the inkjet curable resin composition in a predetermined pattern.

It is another object of the present invention to provide an image display device having the color filter.

1. A curable resin composition for inkjet comprising a curable monomer containing a silicone urethane acrylate, a binder resin, a solvent and a photoinitiator,

Wherein the photoinitiator comprises an oxime ester compound represented by the following formula (1)

The silicone urethane acrylate is a curable resin composition for an inkjet comprising a compound represented by the following formula (7):

(Wherein R ₁ is an alkyl group having 1 to 12 carbon atoms or an aryl group having 6 to 12 carbon atoms; R ₂ is a hydrogen atom, a halogen atom or an alkyl group having 1 to 6 carbon atoms),

(Wherein a and b are integers of 1 to 10, n is an integer of ₁ to 20, R ₁ is independently hydrogen or an alkyl group having 1-10 carbon atoms and may contain a hetero atom, and R ₂ may independently include a hetero atom as an aliphatic or aromatic hydrocarbon having 1 to 20 carbon atoms and Y may be an aliphatic or aromatic aliphatic group having 2 to 60 carbon atoms and containing 1-10 (meth) An aromatic hydrocarbon which may contain a hetero atom).

2. In the above 1, R ₁ of the formula 1 is an alkyl group or a phenyl group of ₁ to 6 carbon atoms inkjet curable resin composition.

3. In the above 1, wherein R ₁ of the formula ₁ is a methyl group or a phenyl group curable resin composition for inkjet.

4. In the above 1, wherein R ₂ of the formula 1 is a hydrogen atom or a methyl group curable resin composition for inkjet.

5. The curable resin composition for inkjet according to 1 above, wherein the photoinitiator is contained in an amount of 0.01 to 10% by weight based on the total weight of the composition.

6. The positive photosensitive composition as described in 1 above, which is selected from the group consisting of a triazine compound, an acetophenone compound, a nonimidazole compound, an oxime compound, a benzoin compound, a benzophenone compound, a thioxanone compound and an anthracene compound And at least one photoinitiator.

7. The curable resin composition for inkjet according to 1 above, wherein the silicone urethane acrylate is contained in an amount of 1 to 50% by weight based on the total weight of the ink-jet curable resin composition.

8. The curable resin composition for inkjet according to 1 above, further comprising a colorant.

9. A color filter comprising a black matrix or a color layer formed by curing the ink-jet curable resin composition of any one of items 1 to 8 above.

10. An image display apparatus comprising the color filter of the above 9.

The use of a photoinitiator excellent in sensitivity of the inkjet curable resin composition of the present invention does not cause a problem that the conventional colorant absorbs light of a specific wavelength to deteriorate the photosensitivity. After curing, the film has excellent flatness and little color change It does not affect the color implementation of the color filter. The color filter made of the curable resin composition for an ink jet of the present invention is excellent in luminance and can be very useful for realizing an image display device with low power.

In addition, the curable resin composition for an inkjet of the present invention comprises a silicone urethane acrylate represented by the formula (7), so that the polysiloxane, which is the main chain in the compound, acts as a leveling agent, so that the dropped ink maintains the wettability in the partition wall, Even after baking, it prevents the separation between the partition wall and the ink, thus preventing the color from falling out. Also, when the excess amount is added to the existing leveling agent, staining does not occur. Maintains and improves physical properties such as heat resistance. Therefore, the curable resin composition for an ink jet of the present invention can be applied to a color filter and an image display apparatus.

In addition, the curable resin composition for inkjet of the present invention can simultaneously improve the flatness of the applied film, in addition to the above-mentioned effects, by simultaneously including the photoinitiator and the curable monomer containing the silicone urethane acrylate. Furthermore, basically, the pattern forming ability and the adhesion to the substrate are excellent, and the color filter manufactured therefrom has excellent solvent resistance, heat resistance and light resistance.

The present invention relates to an inkjet curable resin composition comprising a curable monomer containing a silicone urethane acrylate, a binder resin, a solvent and a photoinitiator, wherein the oxime ester compound represented by the formula (1) is contained as the photoinitiator, A color filter, and an image display device having the same, which are excellent in planarity of a film, have almost no color change, and have excellent brightness.

Hereinafter, the present invention will be described in detail.

The curable resin composition for an ink jet of the present invention comprises a curable monomer containing a silicone urethane acrylate, a binder resin, a solvent and a photoinitiator, and in particular, an oxime ester compound represented by the following formula 1 as the photoinitiator :

[Formula 1]

In formula, R <_1> may be a C1-C12 alkyl group or a C6-C12 aryl group, Preferably, R <_1> is a C1-C6 alkyl group or a phenyl group, More preferably, it is a methyl group or a phenyl group.

The alkyl group having 1 to 12 carbon atoms is methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, t-butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl or It may be a dodecyl group.

The aryl group having 6 to 12 carbon atoms may be a phenyl group, a biphenyl group or a naphthyl group.

In addition, R ₂ may be a hydrogen atom, a halogen atom or an alkyl group having 1 to 6 carbon atoms, and among these, preferably a hydrogen atom or a methyl group.

The oxime ester compound represented by Chemical Formula 1 may be exemplified by the compound represented by Chemical Formulas 2 to 5, but is not limited thereto.

In the oxime ester compound according to the present invention, a phenyl group substituted with -NO _{2, which} is an electron donating group (EDG), is positioned at an alpha position of the oxime to increase the length of conjugation, thereby improving photoreactivity and improving optical It is possible to maximize the efficiency and at the same time does not have a color after light irradiation, which is particularly advantageous when applied to optical products.

These oxime ester compounds can be synthesized by a known synthetic process.

Specific examples of preparation of the oxime ester compound represented by the formula (1) according to the present invention refer to those described in Korean Patent Application No. 10-2011-107522, which is incorporated in its entirety.

The inkjet curable resin composition of the present invention may further contain photoinitiators used in the art within the scope of not deviating from the present invention. For example, a triazine compound, an acetophenone compound, a nonimidazole compound, an oxime compound, a benzoin compound, a benzophenone compound, a thioxanthone compound, and an anthracene compound, Can be mixed and used.

Examples of the triazine compound include 2,4-bis (trichloromethyl) -6- (4-methoxyphenyl) -1,3,5-triazine, 2,4-bis (trichloromethyl) (Trichloromethyl) -6-piperonyl-1,3,5-triazine, 2,4-bis (trichloromethyl) Bis (trichloromethyl) -6- [2- (5-methylfuran-2-yl) -Yl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (furan- Azine, 2,4-bis (trichloromethyl) -6- [2- (4-diethylamino-2-methylphenyl) ethenyl] -1,3,5-triazine, 2,4- Methyl) -6- [2- (3,4-dimethoxyphenyl) ethenyl] -1,3,5-triazine.

Examples of the acetophenone compound include diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylketal, 2- 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropane-1 (2-hydroxy-2-methyl-1- [4- (1-methylvinyl) phenyl] Propan-1-one oligomers and the like.

Moreover, as an acetophenone type compound which can be used other than the acetophenone type compound enumerated above, the compound represented by following formula (6) is mentioned, for example.

In Formula 6, R ₁ to R ₄ are each independently a hydrogen atom, a halogen atom, a hydroxyl group, a phenyl group which may be substituted by an alkyl group having 1 to 12 carbon atoms, or a benzyl group which may be substituted by an alkyl group having 1 to 12 carbon atoms. Or a naphthyl group which may be substituted by an alkyl group having 1 to 12 carbon atoms.

Specific examples of the compound represented by Formula 6 include 2-methyl-2-amino (4-morpholinophenyl) ethan-1-one and 2-ethyl-2-amino (4-morpholinophenyl) ethane- 1-one, 2-propyl-2-amino (4-morpholinophenyl) ethan-1-one, 2-butyl-2-amino (4-morpholinophenyl) ethan-1-one, 2-methyl- 2-amino (4-morpholinophenyl) propane-1-one, 2-methyl-2-amino (4-morpholinophenyl) butan-1-one, 2-ethyl-2-amino (4-morpholin Nophenyl) propane-1-one, 2-ethyl-2-amino (4-morpholinophenyl) butan-1-one, 2-methyl-2-methylamino (4-morpholinophenyl) propane-1- On, 2-methyl-2-dimethylamino (4-morpholinophenyl) propan-1-one, 2-methyl-2-diethylamino (4-morpholinophenyl) propan-1-one, etc. may be mentioned. have.

Examples of the imidazole compound include 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenylbiimidazole, 2,2'- Dichlorophenyl) -4,4 ', 5,5'-tetraphenylbiimidazole, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetra (alkoxyphenyl) (2-chlorophenyl) -4,4 ', 5,5'-tetra (trialkoxyphenyl) biimidazole or a phenyl group at the 4,4', 5,5 ' An imidazole compound substituted by an alkoxy group, and the like. Among them, 2,2'-bis (2-chlorophenyl) -4,4 ', 5,5'-tetraphenylbiimidazole or 2,2'-bis (2,3- , 5,5'-tetraphenylbiimidazole are preferably used.

Examples of the benzoin compound include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether.

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.

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

Examples of the anthracene compound include 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl-9,10-diethoxyanthracene, .

Other examples include 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 10-butyl-2-chloroacridone, 2-ethylanthraquinone, benzyl, 9,10-phenanthrenequinone, camphorquinone, phenylclyoxylic acid Methyl, titanocene compounds and the like can be mentioned as other photoinitiators.

Further, in the present invention, the photoinitiator may be used in combination with a photoinitiator. When a photoinitiator is used in combination with the photoinitiator, the curable resin composition for inkjet containing the photoinitiator is more preferable because productivity is improved when the color filter is formed using the composition.

As the photoinitiator, an amine compound or a carboxylic acid compound is preferably used.

Specific examples of the amine compound in the photoinitiator include aliphatic amine compounds such as triethanolamine, methyldiethanolamine and triisopropanolamine, 4-dimethylaminobenzoate, 4-dimethylaminobenzoate, 4-dimethylaminobenzoate, 2-ethylhexyl dimethylbenzoate, 2-dimethylaminoethyl benzoate, N, N-dimethylparatoluidine, 4,4'-bis (dimethylamino) benzophenone (commonly known as Michler's ketone), 4,4'-bis (Diethylamino) benzophenone, and the like. As the amine compound, an aromatic amine compound is preferably used.

Specific examples of the carboxylic acid compound include phenylthioacetic acid, methylphenylthioacetic acid, ethylphenylthioacetic acid, methylethylphenylthioacetic acid, dimethylphenylthioacetic acid, methoxyphenylthioacetic acid, dimethoxyphenylthioacetic acid, chlorophenylthioacetic acid, dichlorophenyl And aromatic heteroacetic acids such as thioacetic acid, N-phenylglycine, phenoxyacetic acid, naphthylthioacetic acid, N-naphthylglycine, and naphthoxyacetic acid.

The content of the photoinitiator is 0.01 to 10% by weight, preferably 0.01 to 5% by weight, based on the total weight of the curable resin composition for inkjet, and the content of the photoinitiator is 0.1 to 10% by weight, preferably 1 to 5, based on the total weight of the composition. Weight percent. When the usage-amount of a photoinitiator exists in the said range, since the curable resin composition for inkjets becomes highly sensitive and the intensity | strength and brightness of the color layer formed using this composition become favorable, it is preferable. Moreover, when the usage-amount of a photoinitiation adjuvant exists in said range, since the sensitivity of the curable resin composition for inkjets becomes high, and the productivity of the color filter formed using this composition improves, it is preferable.

In addition to the above-described photoinitiators, the inkjet curable resin composition of the present invention includes a curable monomer, a binder resin, and a solvent, and may further include a colorant. The curable resin composition for inkjet may further contain various additives commonly used in the art as needed.

The curable monomer included in the curable resin composition for inkjet of the present invention comprises a silicone urethane acrylate, the silicone urethane acrylate is characterized by having a structure represented by the following formula (7):

[Formula 7]

Wherein a and b are integers of 1 to 10, n is an integer of ₁ to 20, R ₁ is independently hydrogen or an alkyl group having 1-10 carbon atoms and may contain a hetero atom, and R ₂ May independently include a hetero atom as an aliphatic or aromatic hydrocarbon having 1 to 20 carbon atoms and Y may be an aliphatic or aromatic group having 2 to 60 carbon atoms containing 1-10 (meth) The hydrocarbon may include a hetero atom.

The polysiloxane which is a main chain in the silicone urethane acrylate represented by Chemical Formula 7 serves as a leveling agent to maintain flatness upon dropping the curable resin composition for inkjet according to the present invention by an inkjet method, and the curable resin composition for dropping inkjet is partitioned. It helps to maintain the wettability in the inside and prevents the color separation phenomenon by preventing the partition and the separation even after baking. In addition, staining does not occur even when an excessive amount of the silicone urethane acrylate represented by Chemical Formula 7 is added to a conventional leveling agent, and the acrylate group reacts during curing to maintain and improve physical properties such as hardness and heat resistance of the ink.

The curable monomer according to the present invention may be used together with the curable monomer having a bifunctional or higher functional group in addition to the silicone urethane acrylate represented by the formula (7) as necessary.

Specific examples of the above-mentioned curable monomer having two or more functional groups are as follows.

As the bifunctional curable monomer, 1,6-hexanediol diacrylate, 1,6-hexanediol dimethacrylate, 1,9-nonanediol diacrylate, nonanediol dimethacrylate 1,4-butanedioldi Acrylate, 1,4-butanediol dimethacrylate, neopentylglycol diacrylate, neopentylglycol dimethacrylate, ethylene glycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, diethylene Glycol dimethacrylate, triethylene glycol diacrylate, triethylene glycol methacrylate, tetramethylene glycol diacrylate, tetraethylene glycol diacrylate, 1,3-butylene glycol diacrylate, 1,3-butyl Len glycol dimethacrylate, tripropylene glycol diacrylate, tripropylene glycol dimethacrylate, tricyclodecane dimethyrol diacrylate, tricycle There may be mentioned diethylene glycol dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate dimethacrylate Acrylate, 2-n-butyl-2-ethyl-1,3-propanediol diacrylate, cyclohexanedimethanoldiacrylate, cyclohexanedimethanol dimethacrylate, ethoxylated neopentyl glycol diacrylate, Ethoxylated neopentyl glycol dimethacrylate, propoxylated neopentyl glycol diacrylate, propoxylated neopentyl glycol dimethacrylate, hydroxypivalic acid neopentyl glycol diacrylate, ethoxylated bisphenol A diacryl Bisphenol A dimethacrylate, propoxylated bisphenol A acrylate, propoxylated bisphenol A dimethacrylate, Diethylene glycol diacrylate, dipentaerythritol diacrylate, dipentaerythritol dimethacrylate, propylene glycol diacrylate, dipropylene glycol diacrylate, hexamethylene glycol diacrylate, bisphenol-A diacrylate, trimethylol Propane diacrylate, trimethylol propane dimethacrylate, propylene glycol dimethacrylate, dipropylene glycol dimethacrylate, hexane diacrylate, hexane dimethacrylate, glycerin diacrylate, glycerin dimethacrylate , Propylene glycol diacrylate, dicyclopentanyl diacrylate, triglycerol diacrylate, tetraethylene glycol dimethacrylate, propylene glycol dimethacrylate, tetrabromobisphenol A dimethacrylate, dicyclopentanyl dimethacrylate, Acrylate, glycerol dimethacrylate, triglyceride Roldi may be a methacrylate or the like.

As a trifunctional curable monomer, a trimethol propane triacrylate, a trimethol propane trimethacrylate, a pentaerythritol triacrylate, a pentaerythritol trimethacrylate, a tetramethylol methane triacrylate, tetramethylol Propane triacrylate, tri (2-hydroxyethyl isocyanate) triacrylate, ethoxylated trimetholpropane triacrylate, propoxylated trimetholpropane triacrylate, caprolactone modified trimetholpropane triacrylate, Ethoxy isocyanuric acid triacrylate, propoxylate glycerin triacrylate, sorbitol triacrylate, sorbitol trimethacrylate, trimethyl propane triacrylate, trimethyl propane trimethacrylate, tris (hydroxyethyl) isocyanate tri Acrylate, trimethylol Trimethylol propane trimethacrylate, trimethylol ethane trimethacrylate, glycerin triacrylate, glycerin trimethacrylate, tetratrimethylol propane triacrylate, tetra trimethylol propane trimethacrylate, ethylene oxide modified isocyanate acid tree Acrylate, isocyanate-modified ethylene oxide-modified trimethacrylate, and the like.

Examples of the tetrafunctional curable monomer include pentaerythritol tetraacrylate, pentaerythritol tetramethacrylate, ditrimethylol propane tetraacrylate, ditrimethylol propane tetramethacrylate, dipentaerythritol tetraacrylate, tetra Methylol methane tetraacrylate, ethoxylated pentaerythritol tetraacrylate, glycerin tetraacrylate, glycerin tetramethacrylate, and the like.

Examples of the pentafunctional curable monomer include dipentaerythritol pentaacrylate, dipentaerythritol penta methacrylate, dipentaerythritol monohydroxypentaacrylate, and dipentaerythritol monohydroxypenta methacrylate. have.

Examples of the hexafunctional curable monomer include dipentaerythritol hexaacrylate, dipentaerythritol hexa methacrylate, and the like.

1-50 weight% is preferable with respect to the total weight of the curable resin composition for inkjets, and, as for content of the said curable monomer, 1-30 weight% is more preferable. If the content is less than 1% by weight, the degree of curing decreases, making it difficult to form a pattern having a desired thickness, and when the content exceeds 50% by weight, a problem of increasing the viscosity of the composition may occur.

In addition, the silicone urethane acrylate represented by the formula (7) is preferably included at least 50 parts by weight based on 100 parts by weight of the total curable monomer. When the content of the silicone urethane acrylate is less than 50 parts by weight based on the above, there is a problem in that flatness is lowered and color fading occurs.

In the inkjet curable resin composition of the present invention, the binder resin may be used without limitation as long as it is generally used in the art. Preferably, an acrylic binder resin can be used.

Concrete examples of the acrylic binder resin include acrylic acid, methacrylic acid, itaconic acid, maleic acid, fumaric acid, 2-acryloxyethylhydrogenphthalate, 2-acryloxypropylhydrogenphthalate, 2-acryloxypropylhexahydrogenphthalate , Isobutyl acrylate, t-butyl acrylate, lauryl acrylate, glycidyl acrylate, alkyl acrylate, stearyl acrylate, cyclohexyl acrylate, isobornyl acrylate, benzyl acrylate, Acrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, 2-hydroxypropyl acrylate, Acrylate, 2-hydroxy-3-phenoxypropyl acrylate and methacrylates of these, Acrylates including halogen compounds such as 4-fluoroethyl acrylate, 4-fluoropropyl acrylate and methacrylates thereof, acrylates containing siloxane groups such as triethylsiloxy ethyl acrylate, and methacrylates thereof And olefins having an aromatic group such as styrene, 4-methoxystyrene, and the like.

The binder resin is preferably contained in 5 to 40% by weight relative to the total weight of the curable resin composition for inkjet. If the content is less than 5% by weight, not only the adhesion decreases, but also the physical properties such as strength, heat resistance, and chemical resistance of the formed pattern may be lowered. When the content exceeds 40% by weight, the viscosity of the composition may increase. have.

In the inkjet curable resin composition of the present invention, various organic solvents used in the art can be used as the solvent without any particular limitation. Preferably, the solvent has a boiling point of 170 to 230 ° C. Particularly, the solvent having a boiling point of 170 to 230 ° C is preferably contained in an amount of 70 parts by weight or more, more preferably 80 parts by weight or more, based on 100 parts by weight of the total amount of all solvents. If the composition containing a boiling point of less than 70 parts by weight of the solvent in the range of 170 to 230 ℃, the drying speed of the ink is so fast that the ink is dried in the nozzle for ejecting the ink clogging occurs.

Examples of the solvent having a boiling point in the range of 170 to 230 占 폚 include ethylene glycol methyl ethyl ether, propylene glycol monobutyl ether, dipropylene glycol monomethyl ether acetate, 1,2-dipropylene glycol diacetate, diethylene glycol ethyl ether Acetate, and the like.

According to the present invention, the solvent having a boiling point of 170 to 230 ° C can be used by mixing with other solvents, preferably by mixing with an ether-based solvent and an ester-based solvent. Specific examples of the ether-based and ester-based solvents that can be used in the above mixing are as follows.

Examples of ethers include tetrahydrofuran, tetrahydropyran, 1,4-dioxane, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, Diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol dipropyl ether, diethylene glycol dibutyl ether, propylene glycol monomethyl ether acetate, propylene glycol Propyleneglycol methyl ether acetate, methoxybutyl acetate, methoxypentetraacetate, propyleneglycol monoethyl ether acetate, propyleneglycol monopropyl ether acetate, methyl cellosolve acetate, ethyl cellosolve acetate, ethyl carbitol acetate, butyl carbitol acetate, propyleneglycol methyl ether acetate, One , 3-butylene glycol diacetate, anisole, phenetol, methyl anisole and the like.

Examples of esters include ethyl acetate, n-butyl acetate, isobutyl acetate, amyl formate, isoamyl acetate, isoamyl acetate, isobutyl acetate, butyl propionate, isopropyl butyrate, ethyl butyrate, butyl esters, alkyl esters, methyl lactate , Methyl oxyacetate, ethyl oxyacetate, butyl oxyacetate, methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethoxyacetate, methyl 3-oxypropionate, ethyl 3- Methoxypropionate, methyl 3-methoxypropionate, ethyl 3-methoxypropionate, methyl 3-ethoxypropionate, ethyl 3-ethoxypropionate, methyl 2-oxypropionate, ethyl 2-oxypropionate, Methyl propionate, ethyl 2-methoxypropionate, propyl 2-methoxypropionate, methyl 2-ethoxypropionate, ethyl 2-ethoxypropionate, 2- Methyl propionate, ethyl 2-oxy-2-methylpropionate, methyl 2-methoxy-2-methylpropionate, ethyl 2-ethoxy-2-methylpropionate, methyl pyruvate, ethyl pyruvate, Methyl, ethyl acetoacetate, methyl 2-oxobutanoate, ethyl 2-oxobutanoate, 3-methyl-3-methoxybutyl acetate, gamma -butylolactone and the like.

The solvent may be contained in 40 to 90% by weight relative to the total weight of the curable resin composition for inkjet. When the solvent is contained in the above range, the curable resin composition for inkjet according to the present invention is preferable because it shows good applicability.

The curable resin composition for an ink jet of the present invention may further comprise a coloring agent. The colorant is not limited as long as it is used in the art, and may include an organic pigment or an inorganic pigment.

Specific examples of the organic pigments and inorganic pigments include pigments classified by Pigment in the Society Index of Dyers and Colourists. More specifically, the organic pigments and the inorganic pigments are represented by the following color indexes (CI) number, but the present invention is not limited thereto.

C.I. Pigment Yellow 1, C.I. Pigment Yellow 3, C.I. Pigment Yellow 12, C.I. Pigment Yellow 13, C.I. Pigment Yellow 14, C.I. Pigment Yellow 15, C.I. Pigment Yellow 16, C.I. Pigment Yellow 17, C.I. Pigment Yellow 20, C.I. Pigment Yellow 24, C.I. Pigment Yellow 31, C.I. Pigment Yellow 53, C.I. Pigment Yellow 83, C.I. Pigment Yellow 86, C.I. Pigment Yellow 93, C.I. Pigment Yellow 94, C.I. Pigment Yellow 109, C.I. Pigment Yellow 110, C.I. Pigment Yellow 117, C.I. Pigment Yellow 125, C.I. Pigment Yellow 128, C.I. Pigment Yellow 137, C.I. Pigment Yellow 138, C.I. Pigment Yellow 139, C.I. Pigment Yellow 147, C.I. Pigment Yellow 148, C.I. Pigment Yellow 150, C.I. Pigment Yellow 153, C.I Pigment Yellow 154, C.I. Pigment Yellow 166, C.I. Pigment Yellow 173, C.I. Pigment Yellow 194, C.I. Yellow pigments such as pigment yellow 214; C.I. Pigment Orange 13, C.I. Pigment Orange 31, C.I. Pigment Orange 36, C.I. Pigment Orange 38, C.I. Pigment Orange 40, C.I. Pigment Orange 42, C.I. Pigment Orange 43, C.I. Pigment Orange 51, C.I. Pigment Orange 55, C.I. Pigment Orange 59, C.I. Pigment Orange 61, C.I. Pigment Orange 64, C.I. Pigment Orange 65, C.I. Pigment Orange 71, C.I. Orange pigments such as Pigment Orange 73; C.I. Pigment Red 9, C.I. Pigment Red 97, C.I. Pigment Red 105, C.I. Pigment Red 122, C.I. Pigment Red 123, C.I. Pigment Red 144, C.I. Pigment Red 149, C.I. Pigment Red 166, C.I. Pigment Red 168, C.I Pigment Red 176, C.I. Pigment Red 177, C.I. Pigment Red 180, C.I. Pigment Red 192, C.I. Pigment Red 209, C.I. Pigment Red 215, C.I. Pigment Red 216, C.I. Pigment Red 224, C.I. Pigment Red 242, C.I Pigment Red 254, C.I. Pigment Red 264, C.I. Red pigments such as Pigment Red 265; C.I. Pigment Blue 15, C.I. Pigment Blue 15: 3, C.I. Pigment Blue 15: 4, C.I. Pigment Blue 15: 6, C.I. Blue pigments such as Pigment Blue 60; C.I. Pigment Violet 1, C.I. Pigment Violet 19, C.I. Pigment Violet 23, C.I. Pigment Violet 29, C.I. Pigment Violet 32, C.I. Pigment Violet 36, C.I. Violet pigments such as Pigment Violet 38; C.I. Pigment Green 7, C.I. Pigment Green 36, C.I. Green pigments such as Pigment Green 58; C.I. Pigment Brown 23, C.I. Brown pigments such as Pigment Brown 25; C.I. Pigment Black 1, C.I. Pigments such as Pigment Black 7 and the like can be used singly or in combination of two or more kinds. For example, in order to form a red pixel among the above-described coloring materials, C.I. Pigment Red 254, C.I. Pigment Red 209, C.I. Pigment Red 242 and Pigment Red 177, and in order to form a green pixel, it is preferable to use at least one kind selected from C.I. Pigment Green 58, C.I. Pigment Green 36, C.I. Pigment Green 7, C.I. Pigment Yellow 150 and C.I. Pigment Yellow 138. In order to form a blue pixel, it is preferable to use at least one selected from C.I. Pigment Blue 15: 3, C.I. Pigment Blue 15: 6, and Pigment Violet 23.

In addition, the inorganic pigment may include titanium oxide, titanium black, carbon black, and the like, and may include one or two or more selected from these.

The organic pigment or the inorganic pigment may be subjected to a surface treatment using a pigment treatment, a pigment derivative into which an acidic group or a basic group is introduced, graft treatment on the surface of a pigment with a polymer compound or the like, an atomization treatment using a sulfuric acid atomization method, A cleaning treatment with an organic solvent or water for removing the ionic impurities, a treatment for removing ionic impurities by an ion exchange method, or the like.

The pigment to be used as a colorant is preferably one having a uniform particle diameter. For this purpose, a pigment dispersed with a surfactant may be used.

The colorant may be contained in an amount of 1 to 40% by weight based on the total weight of the curable resin composition for inkjet, and particularly preferably in an amount of 10 to 30% by weight. When the content of the colorant is contained in an amount of 1 to 40% by weight, the color density of the pixel is sufficient even when a thin film is formed, and thus it is preferable because no residue is generated.

The curable resin composition for inkjet of the present invention may further contain additives in addition to the above components, if necessary. The amount of the additive to be added is not limited, but may be in the range of 0.001 to 10% by weight based on the total weight of the curable composition for inkjet. When the additive is added in the above-mentioned content range, the purpose of the additive can be achieved without impairing desired physical properties such as flatness of the ink-jet curable resin composition.

As the additive, at least one selected from a dispersant, a wetting agent, a silane coupling agent and an anti-aggregation agent may be added.

As the dispersing agent, a commercially available surfactant may be used. Examples of the surfactant include a silicone surfactant, a fluorinated surfactant, a silicon surfactant having a fluorine atom, and a mixture thereof. Examples of the silicone surfactant include a surfactant having a siloxane bond. As commercially available products, Toray Silicon DC3PA, Toray Silicone SH7PA, Toray Silicon DC11PA, Toray Silicone SH21PA, Toray Silicone SH28PA, Toray Silicone 29SHPA, Toray Silicone SH30PA, Polyether Modified Silicone Oil SH8400 (Toray Silicone Co., Ltd.), KP321 (Manufactured by Shin-Etsu Silicones), TSF400, TSF401, TSF410, TSF4300, TSF4440, TSF4445, TSF4446, TSF4452, TSF4460, TSF4460, TSF4460 . As said fluorine-type surfactant, surfactant etc. which have a fluorocarbon chain | strand are mentioned. Concretely, it is possible to use a propylene glycol (trade name) FC430, a prolineate FC431 (manufactured by Sumitomo 3M Ltd.), Megapack (trade name) F142D, Megapack F171, Megapack F172, Megafac F173, Megafac F177, (Trade name) EF301, Eftop EF303, Eftop EF351, and Eftop EF352 (manufactured by Shin-Aitaku Kasei Co., Ltd.), Megapack F183, Megapack R30 1000, BM-1100 (product name) S381, Surfron S382, Surfron SC101, Surfron SC105 (manufactured by Asahi Glass Co., Ltd.), E5844 (manufactured by Daikin Fine Chemical Co., Ltd.) Manufactured by BMChemie). Examples of the silicone-based surfactant having a fluorine atom include a surfactant having a siloxane bond and a fluorocarbon chain. Specific examples thereof include Megapac (trade name) R08, Megapack BL20, Megapack F475, Megapack F477, Megapack F443 (manufactured by Dainippon Ink and Chemicals, Incorporated).

Examples of the humectant include glycerin, diethylene glycol, ethylene glycol, and the like, and may include one or more selected from these.

Examples of the silane coupling agent include aminopropyltriethoxysilane,? -Mercaptopropyltrimethoxysilane and? -Methacryloxypropyltrimethoxysilane, and commercially available products include SH6062, SZ6030 (Toray-Dow (Manufactured by Corning Silicon co., Ltd.), KBE903 and KBM803 (manufactured by Shin-Etsu silicone co., Ltd.).

Examples of the aggregation inhibitor include sodium polyacrylate.

The curable resin composition for inkjet according to the present invention can be used for forming a black matrix of a color filter according to a known method. In particular, when the curable resin composition for an ink jet according to the present invention further comprises a colorant, it can be used for forming a color layer of a color filter.

Hereinafter, a method of forming a pattern using the coloring agent for ink-jet curable resin composition according to the present invention, and a color filter including the pattern will be described in more detail.

The method for forming a pattern of a curable resin composition for an inkjet according to the present invention comprises the steps of applying the inkjet curable resin composition described above to a predetermined area by an inkjet method and curing the applied curable resin composition for an inkjet .

First, a curable resin composition for an ink jet is injected into an ink jet injector to print on a predetermined area of a substrate.

The substrate is not limited. For example, a substrate having a flat surface such as a glass substrate, a silicon substrate, a polycarbonate substrate, a polyester substrate, an aromatic polyamide substrate, a polyamideimide substrate, a polyimide substrate, an Al substrate, or a GaAs substrate may be used. Can be mentioned. These substrates can be subjected to pretreatment such as chemical treatment with a chemical such as a silane coupling agent, plasma treatment, ion plating treatment, sputtering treatment, vapor phase reaction treatment, vacuum deposition treatment and the like. When a silicon substrate or the like is used as the substrate, a charge coupled device (CCD), a thin film transistor (TFT), or the like may be formed on a surface of the silicon substrate or the like. In addition, a partition matrix may be formed.

In order to be ejected from a piezo inkjet head, which is an example of an inkjet ejector, to form an appropriate phase on a substrate, properties such as viscosity, flowability, pigment particles, etc. must be balanced with the inkjet head. The piezo inkjet head used in the present invention is not limited but sprays ink having a droplet size of about 10 pL to 100 pL, preferably about 20 pL to 40 pL.

The viscosity of the curable resin composition for inkjet is suitably in the range of about 3 to 30 cP, more preferably in the range of 7 to 20 cP.

The pigment particles used as a coloring agent in the curable resin composition for inkjet preferably have a size of about 50 to 500 nm, more preferably 100 nm or less. When the pigment particle size is 500 nm or more, the fluidity of the pigment particles decreases, so that spraying becomes uneven. When the pigment particle size is 50 nm or less, it is difficult to secure dispersion stability of the pigment.

Next, a color filter according to the present invention includes a color layer formed by the pattern formation method. That is, the color filter includes a color layer formed by applying the curable resin composition for inkjet according to the present invention in a predetermined pattern and curing it.

The configuration of the color filter is well known in the art, and a detailed description thereof will be omitted.

According to the present invention, there is provided an image display apparatus having the color filter described above.

The image display apparatus of the present invention includes a configuration known in the art except for the color filter described above. That is, all the image display apparatuses to which the color filter of the present invention can be applied are included in the present invention. Examples of the image display device include a liquid crystal display device, an OLED, and the like. As a more specific example, a counter electrode substrate having a thin film transistor (TFT element), a pixel electrode and an alignment layer is faced at a predetermined interval, and a liquid crystal material is injected into the gap portion to form a liquid crystal layer, . There is also a reflective liquid crystal display device in which a reflective layer is provided between the substrate of the color filter and the colored layer.

Hereinafter, the present invention will be described in detail with reference to Examples. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

Pigment dispersion preparation

Pigment, dispersant and organic solvent were mixed in the composition shown in the following table to prepare a pigment dispersion of PB 15: 6 (CI Pigment Blue 15: 6) and PV23 (CI Pigment Violet 23).

Blue / violet pigment dispersion Compounding amount (part by weight) PB15: 6 10.0 PV23 3.0 Dispersant 4.4 Binder Resin 1 2.6 EDGAC 80.0

In Table 1, the binder resin 1 is benzyl methacrylate / methacrylic acid (70:30 mol%, styrene-equivalent weight average molecular weight: 15,000), EDGAC is an organic solvent such as diethylene glycol monoethyl ether acetate )to be. As the dispersing agent, BYK-2000 (trade name) was used.

Example  1-6, Comparative example  1-2

The blue / violet pigment dispersion prepared above was mixed according to the composition shown in Table 2 below to prepare a curable resin composition for an ink jet.

division Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Comparative Example 1 Comparative Example 2 Blue / violet pigment dispersion 30.56 30.56 30.56 30.56 30.56 30.56 30.56 30.56 Binder Resin 1 6.80 6.85 6.68 6.80 6.80 6.80 7.00 6.80 Hardenability
Monomer DPHA 1.13 1.14 - 1.13 1.13 1.13 4.67 1.13 S-601 3.74 3.77 4.99 3.74 3.74 3.74 - 3.74 Photoinitiator (2) 0.12 0.12 0.12 0.12 - (3) 0.12 Formula 4 0.12 Formula 5 0.12 Thermal polymerization initiator AIBN - - - - - - - 0.12 SH-8400 0.09 - 0.09 0.09 0.09 0.09 0.09 0.09 EDGAC 57.56 57.56 57.56 57.56 57.56 57.56 57.56 57.56

Binder resin 1 in Table 2 is benzyl methacrylate / methacrylic acid (70:30 mol%, styrene equivalent weight average molecular weight 15,000), DPHA is a dipentaerythritol hexaacrylate as a curable monomer, S-601 is A silicone urethane acrylate compound having the structure represented by Formula 8, AIBN is azobisisobutyronitrile as a thermal polymerization initiator, SH8400 is a surfactant prepared from Toray Silicone, EDGAC is diethylene glycol monoethyl as an organic solvent Ether acetate (Diethylene glycol monoethyl ether acetate).

(PDMS is a polydimethylsiloxane with 10 repeating structures).

Experimental Example  One

The curable resin compositions for inkjets prepared in Examples 1, 2, 3, 4, 5, and 6 and Comparative Examples 1 and 2 were evaluated by the following method for flatness and heat resistance, and the results are shown in Table 3 below.

(One) Flatness

The inkjet curable resin compositions prepared in Examples 1 to 6 and Comparative Examples 1 and 2 were ink in a black matrix having a height of 2.5 μm (hereinafter referred to as BM) using an inkjet printing apparatus in a clean room at 23 ° C. and a humidity of 50%. After printing at a volume of 30 pl per drop, prebaking was performed at 100 ° C. for 3 minutes, Examples 1 to 6 and Comparative Example 1 were subjected to an exposure process of 40 mJ / cm ² containing a photoinitiator, and a thermal initiator was included. In Comparative Example 2, the exposure step was omitted. All examples and comparative examples were then cured in the same convection oven at 230 캜 for 30 minutes. The color layer of the cured substrate was measured with a stylus profiler to measure the degree of flatness with the difference between the highest part and the lowest part.

(2) Heat resistance

The inkjet curable resin compositions prepared in Examples 1 to 6 and Comparative Examples 1 and 2 were spin-coated on glass, prebaked at 100 ° C. for 3 minutes, and then, in Examples 1 to 6 containing photoinitiators. Comparative Example 1 went through an exposure step of 40 mJ / cm ² , Comparative Example 2 containing a thermal initiator omitted the exposure step. All examples and comparative examples were then cured in the same convection oven at 230 캜 for 30 minutes. In addition, the color change delta EiB value (ΔEab) of Examples 1 to 6 and Comparative Examples 1 and 2 which were subjected to the above process were subjected to heat resistance (hereinafter heat resistance) for 2 hours in a 230 ° C convection oven using Olympus OSP-SP200. Was evaluated.

(3) Luminance

The inkjet curable resin compositions prepared in Examples 1 to 6 and Comparative Examples 1 and 2 were spin-coated on glass, prebaked at 100 ° C. for 3 minutes, and then, in Examples 1 to 6 containing photoinitiators. Comparative Example 1 went through an exposure step of 40 mJ / cm ² , Comparative Example 2 containing a thermal initiator omitted the exposure step. All examples and comparative examples were then cured in the same convection oven at 230 캜 for 30 minutes. The brightness of the cured substrates was measured using OSP-SP200 manufactured by Olympus.

division Heat resistance (△ Eab) Flatness Luminance Example 1 3 or less 0.2 μm or less 9.05 Example 2 3 or less 0.2 μm or less 9.07 Example 3 3 or less 0.2 μm or less 9.03 Example 4 3 or less 0.2 μm or less 9.03 Example 5 3 or less 0.2 μm or less 9.06 Example 6 3 or less 0.2 μm or less 9.03 Comparative Example 1 3 or less 0.5 탆 or more 9.06 Comparative Example 2 3 or less 0.2 μm or less 8.79

As shown in Table 3, in Examples 1 to 6 and Comparative Example 2 according to the present invention, it can be confirmed that the leveling property is increased compared to Comparative Example 1 in which S-601 is not added, thereby having an overall uniform thickness.

In particular, as can be seen in Example 2, even if the leveling agent SH-8400, which is added to the conventional curable resin composition, it can be seen that the level difference is maintained similar to Example 1.

In addition, when comparing the heat resistance of Example 3, which does not use DPHA, which is a commonly used curable monomer, and Comparative Example 1 added thereto, there is no significant difference, while Example 3 of the present invention has excellent properties in terms of flatness. It can be seen that.

Comparative Example 2 includes the silicone urethane acrylate monomer of the present invention but corresponds to the case where the oxime ester photoinitiator of the present invention is not used. The flatness is similar to those of the examples, but the luminance is remarkably decreased. have.

Claims (10)

1. A curable resin composition for inkjet comprising a curable monomer containing a silicone urethane acrylate, a binder resin, a solvent and a photoinitiator,
Wherein the photoinitiator comprises an oxime ester compound represented by the following formula (1)
The silicone urethane acrylate is a curable resin composition for an inkjet comprising a compound represented by the following formula (7):
[Formula 1]

(Wherein R ₁ is an alkyl group having 1-12 carbon atoms or an aryl group having 6-12 carbon atoms; R ₂ is a hydrogen atom, a halogen atom or an alkyl group having 1-6 carbon atoms),
(7)

(Wherein a and b are integers of 1 to 10, n is an integer of ₁ to 20, R ₁ is independently hydrogen or an alkyl group having 1-10 carbon atoms and may contain a hetero atom, and R ₂ may independently include a hetero atom as an aliphatic or aromatic hydrocarbon having 1 to 20 carbon atoms and Y may be an aliphatic or aromatic aliphatic group having 2 to 60 carbon atoms and containing 1-10 (meth) An aromatic hydrocarbon which may contain a hetero atom).
The curable resin composition for inkjet according to claim 1, wherein R ₁ in Formula 1 is an alkyl group having ₁ to 6 carbon atoms or a phenyl group.
The curable resin composition for an inkjet according to claim 1, wherein R ₁ in Formula 1 is a methyl group or a phenyl group.
The curable resin composition for an inkjet according to claim 1, wherein R ₂ in Formula 1 is a hydrogen atom or a methyl group.
The curable resin composition for inkjet according to claim 1, wherein the photoinitiator is contained in an amount of 0.01 to 10% by weight based on the total weight of the composition.
[4] The method according to claim 1, wherein at least one selected from the group consisting of a triazine compound, an acetophenone compound, a nonimidazole compound, an oxime compound, a benzoin compound, a benzophenone compound, a thioxanthone compound, and an anthracene compound Wherein the curable resin composition further comprises a photoinitiator.
The curable resin composition for inkjet according to claim 1, wherein the silicone urethane acrylate is contained in an amount of 1 to 50% by weight based on the total weight of the ink-jet curable resin composition.
The curable resin composition for inkjet according to claim 1, further comprising a colorant.
A color filter comprising a black matrix or a color layer formed by curing the ink-jet curable resin composition of any one of claims 1 to 8.
An image display apparatus comprising the color filter of claim 9.