TWI655260B - Photosensitive resin composition, photosensitive resin layer and color filter using the same - Google Patents

Abstract

The present invention provides a photosensitive resin composition, a photosensitive resin layer using the photosensitive resin composition, and a color filter manufactured using the photosensitive resin composition. The photosensitive resin composition includes: (A1) a first acrylic adhesive resin; (A2) a second acrylic adhesive resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a colorant; and (E) a solvent .

Description

Photosensitive resin composition, photosensitive resin layer and color filter using the same

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

A display device (for example, a color filter, a liquid crystal display material, an organic light emitting diode, or a display panel material) requires a photosensitive resin composition. For example, a color filter (such as a color liquid crystal display, etc.) requires a black matrix on the boundary between colored layers such as red, green, and blue to enhance display contrast or chromophore effect. The light-blocking layer may be mainly formed of a photosensitive resin composition. Recently, as the use of a large-screen liquid crystal display (LCD) has increased significantly, it has become increasingly necessary to improve its performance. Since color filters are the most important factor for achieving color among many components of liquid crystal displays, active research is being conducted to increase the process margin of color filters to improve productivity.

In addition, in order to increase the color purity of a large-screen liquid crystal display (LCD), a color filter is manufactured using a photosensitive resin composition prepared by increasing the concentration of a colorant. Therefore, the photosensitive resin composition needs to have a reduced development rate in order to improve productivity and yield in the manufacturing process, and has excellent sensitivity despite light exposure.

A color filter is manufactured using a photosensitive resin composition by methods such as drying, electrophoretic deposition (EPD), printing, and pigment dispersion, in which three or more colors are coated on a transparent substrate. Recently, the pigment dispersion method has been adopted more actively.

On the other hand, a color filter manufactured using a pigment-type photosensitive resin composition has a limitation that the brightness and contrast are deteriorated due to the size of pigment particles and cohesion. In order to improve these limitations, a dye-type photosensitive resin composition containing a dye that does not form particles or a dye having a primary particle diameter much smaller than that of a pigment dispersion has been studied. However, the dye-type photosensitive resin composition has weak heat resistance, light resistance, and chemical resistance, and it may still be difficult to achieve commercial applications.

Embodiments of the present invention provide a photosensitive resin composition capable of improving brightness, generating water stains, and flowing-down a pattern.

An embodiment of the present invention provides a photosensitive resin composition. The photosensitive resin composition includes: (A1) a first acrylic adhesive resin including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, and Repeating unit represented by Chemical Formula 3 and repeating unit represented by Chemical Formula 4; (A2) a second acrylic adhesive resin, including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 5, and a repeating unit represented by Chemical Formula 6 A repeating unit represented by Chemical Formula 7 and a repeating unit represented by Chemical Formula 8; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a colorant; and (E) a solvent,

In Chemical Formulas 1 to 8, R ¹ is a substituted or unsubstituted C1 to C10 alkyl group, R ² to R ⁵ and R ⁷ to R ^{9 are} independently a hydrogen atom or substituted or unsubstituted C1 to C10 alkyl, and R ⁶ is a substituted or unsubstituted C11 to C20 alkyl.

The repeating unit represented by Chemical Formula 1 may be included in an amount of 15% to 25% by weight based on the total amount of the first acrylic adhesive resin, and may be included in an amount of 15% to 25% by weight. The repeating unit represented by Chemical Formula 2 may include the repeating unit represented by Chemical Formula 3 in an amount of 10% by weight to 20% by weight, and may include the repeating unit represented by Chemical Formula 4 in an amount of 40% by weight to 50% by weight.

The repeating unit represented by Chemical Formula 1 may be included in an amount of 15% to 25% by weight based on the total amount of the second acrylic adhesive resin, and may be included in an amount of 5% to 15% by weight. The repeating unit represented by Chemical Formula 5 may include the repeating unit represented by Chemical Formula 6 in an amount of 15% to 25% by weight, and may include the repeating unit represented by Chemical Formula 7 in an amount of 35% to 45% by weight, and The repeating unit represented by Chemical Formula 8 may be included in an amount of 5 to 15% by weight.

The weight average molecular weight of the first acrylic adhesive resin may be 2,000 grams / mole (g / mol) to 9,000 grams / mole (g / mol).

The acid value of the first acrylic adhesive resin may be 100 mg KOH / g (mgKOH / g) to 120 mg KOH / g (mgKOH / g).

A weight average molecular weight of the second acrylic adhesive resin may be 10,000 g / mol to 17,000 g / mol.

The acid value of the second acrylic adhesive resin may be 80 mgKOH / g To 99 mgKOH / g.

An amount of the first acrylic adhesive resin included may be smaller than that of the second acrylic adhesive resin.

The photosensitive resin composition may further include (A3) an epoxy adhesive resin.

The photopolymerizable monomer may include a compound represented by Chemical Formula 9,

In Chemical Formula 9, R ¹⁰ to R ^{15 are} independently represented by Chemical Formula 10,

However, in Chemical Formula 10, n is an integer of 1 or 2.

The n may be an integer of two.

The colorant may include a pigment and a dye represented by Chemical Formula 11, [Chemical Formula 11]

In Chemical Formula 11, Y ¹ to Y ¹² independently Cl or Br, R ¹⁶ to R ¹⁹ is independently a halogen atom, a substituted or unsubstituted C1 to C20 alkyl, substituted C3 to C20 alkoxy group , A substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C6 to C20 aryloxy group, and at least one of R ¹⁶ to R ¹⁹ is represented by Chemical Formula 12,

Wherein, in Chemical Formula 12, R ²⁰ and R ^{21 are} independently C1 to C10 alkyl groups which are unsubstituted or substituted with C1 to C5 alkyl groups, o and p are independently integers ranging from 0 to 5, and 1 o + p 5.

The dye represented by Chemical Formula 11 may be selected from Chemical Formula 11-1 to Learn one of the expressions 11-8.

[Chemical Formula 11-3]

[Chemical Formula 11-5]

[Chemical Formula 11-7]

The pigment may include a green pigment and a yellow pigment.

The photopolymerization initiator may include a compound represented by Chemical Formula 13, [Chemical Formula 13]

In Chemical Formula 13, R ²² and R ^{23 are} independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group, and L ¹ is a substituted or unsubstituted C1 to C10 alkylene group.

The photosensitive resin composition may include the (A1) acrylic adhesive resin in an amount of 1% to 10% by weight based on the total amount of the photosensitive resin composition; Said (A2) acrylic adhesive resin; 1 to 10% by weight of said (B) photopolymerizable monomer; 0.1 to 5% by weight of said (C) photopolymerization initiator; 30% by weight To 55% by weight of the (D) colorant; and the balance is the (E) solvent.

The photosensitive resin composition may further include the following additives: malonic acid, 3-amino-1,2-propanediol, and silane-based coupling agent coupling agent), leveling agent, fluorine-based surfactant, radical polymerization initiator, or a combination thereof.

Another embodiment provides a photosensitive resin layer manufactured using the photosensitive resin composition.

Still another embodiment provides a color filter including a photosensitive resin layer.

Other embodiments of the present invention are included in the following detailed description.

The photosensitive resin composition according to the embodiment can improve heat resistance, brightness, surface wrinkles, developing water stains, and can therefore be applied to a color filter.

In order to make the above features and advantages of the present invention more comprehensible, embodiments are hereinafter described in detail with reference to the accompanying drawings.

1 and 2 are photographs each showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Example 1. FIG.

3 and 4 are photographs showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Example 2, respectively.

5 and 6 are photographs each showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Example 3. FIG.

7 and 8 are photographs showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Example 4, respectively.

9 and 10 are each a photograph showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Comparative Example 1. FIG.

11 and 12 are photographs showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Comparative Example 2, respectively.

13 and 14 are photographs showing a pattern of a photosensitive resin layer produced using the photosensitive resin composition according to Comparative Example 3, respectively.

FIG. 15 is a photograph showing a tapered shape and an angle of a photosensitive resin layer manufactured using the photosensitive resin composition according to Example 1. FIG.

FIG. 16 is a photograph showing a tapered shape and an angle of a photosensitive resin layer manufactured using the photosensitive resin composition according to Example 2. FIG.

FIG. 17 is a photograph showing a tapered shape and an angle of a photosensitive resin layer manufactured using the photosensitive resin composition according to Example 3. FIG.

FIG. 18 is a photograph showing a tapered shape and an angle of a photosensitive resin layer manufactured using the photosensitive resin composition according to Example 4. FIG.

FIG. 19 is a photograph showing a tapered shape and an angle of a photosensitive resin layer manufactured using the photosensitive resin composition according to Comparative Example 1. FIG.

20 is a photograph showing a tapered shape and an angle of a photosensitive resin layer produced using the photosensitive resin composition according to Comparative Example 2. FIG.

21 is a photograph showing a tapered shape and an angle of a photosensitive resin layer manufactured using the photosensitive resin composition according to Comparative Example 3. FIG.

Hereinafter, examples of the present invention will be described in detail. However, these embodiments are exemplary, and the present invention is not limited thereto and the present invention is defined by the scope of the patent application scope.

When a specific definition is not otherwise provided, the "substituted" described herein means that at least one hydrogen of the functional group of the present invention is replaced with one or more substituents selected from the group consisting of a halogen atom (F, Cl, Br, or I ), Hydroxyl, nitro, cyano, amino (NH ₂ , NH (R ²⁰⁰ ), and N (R ²⁰¹ ) (R ²⁰² ), where R ²⁰⁰ , R ²⁰¹ and R ²⁰² are the same or different and are independently C1 to C10 alkyl), fluorenyl, hydrazino, fluorenyl, carboxyl, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl, substituted Or unsubstituted alicyclic organic groups, substituted or unsubstituted aryl groups, and substituted or unsubstituted heterocyclic groups.

When a specific definition is not otherwise provided, the "alkyl group" described herein refers to a C1 to C20 alkyl group and specifically a C1 to C15 alkyl group, and the "cycloalkyl group" refers to a C3 to C20 cycloalkyl group and specifically to Said to be C3 to C18 cycloalkyl, "alkoxy" means C1 to C20 alkoxy and specifically C1 to C18 alkoxy, and "aryl" means C6 to C20 aryl and specifically C6 to C18 aryl, "alkenyl" refers to C2 to C20 alkenyl and specifically C2 to C18 alkenyl, "alkylene" refers to C1 to C20 alkylene and specifically C1 to C18 alkyl Alkyl, and "arylene" refers to C6 to C20 aryl and specifically C6 to C16 aryl.

When a specific definition is not otherwise provided, "hetero" described herein means that it contains at least one heteroatom selected from N, O, S, and P in the chemical formula.

When a specific definition is not otherwise provided, the "(meth) acrylate" referred to herein means both "acrylate" and "methacrylate", and "(meth) acrylic" means "acrylic" and "Methacrylate".

As used herein, when a definition is not otherwise provided, when a chemical bond is not drawn in a chemical formula where it should be given, a hydrogen bond is at the position.

When a specific definition is not otherwise provided, "*" as used herein means a point connecting the same or different atom or chemical formula.

A photosensitive resin composition according to an embodiment includes: (A1) a first acrylic adhesive resin including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, a repeating unit represented by Chemical Formula 3, and a chemical formula (A2) a second acrylic adhesive resin comprising a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 5, a repeating unit represented by Chemical Formula 6, a repeating unit represented by Chemical Formula 7, and A repeating unit represented by Chemical Formula 8; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a colorant; and (E) a solvent.

[Chemical Formula 4]

In Chemical Formulas 1 to 8, R ¹ is a substituted or unsubstituted C1 to C10 alkyl group, R ² to R ⁵ and R ⁷ to R ^{9 are} independently a hydrogen atom or substituted or unsubstituted C1 to C10 alkyl, and R ⁶ is a substituted or unsubstituted C11 to C20 alkyl.

Generally, the color characteristics (for example, brightness, etc.) and the pattern characteristics (for example, pattern wrinkles, water stains, etc.) of a color filter can be improved by improving the pigment in a photosensitive resin composition. However, when the pigment is improved, it may be impossible to apply the conventional process to the pigment, and even if it is applied, the effect of improving the color characteristics of the traditional process is small.

In contrast, the acrylic adhesive resin in the photosensitive resin composition according to the embodiment includes a repeating unit represented by Chemical Formula 1 to Chemical Formula 8, and therefore, high heat resistance, pattern surface characteristics, high brightness characteristics, and close contact force can be secured. The developability of the pattern is controlled, and in addition, the acrylic adhesive resin includes a photopolymerizable monomer, a photopolymerization initiator, and a dye represented by a specific chemical formula, and thus the above characteristics can be further effectively improved.

Hereinafter, each component is explained in detail.

(A) acrylic adhesive resin

The photosensitive resin composition according to the embodiment includes a first acrylic adhesive resin (A1), and the first acrylic adhesive resin (A1) includes a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, and a chemical formula The repeating unit represented by 3 and the repeating unit represented by Chemical Formula 4.

For example, in Chemical Formulas 1 to 4, R ¹ to R ⁴ may be independently C ¹ to C 5 alkyl groups, R ⁵ may be a hydrogen atom, and R ⁶ may be a substituted or unsubstituted C 11 to C 18 alkane base.

In addition, the photosensitive resin composition according to the example includes a second acrylic adhesive resin (A2), and the second acrylic adhesive resin (A2) includes a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 5, The repeating unit represented by Chemical Formula 6, the repeating unit represented by Chemical Formula 7, and the repeating unit represented by Chemical Formula 8.

For example, in Chemical Formulas 5 to 8, R ¹ to R ⁴ may be independently C ¹ to C 5 alkyl groups, and R ⁷ to R ⁹ may be independently hydrogen atoms.

Since the photosensitive resin composition according to the embodiment includes the first acrylic adhesive resin, the first acrylic adhesive resin can enhance heat resistance and thus improve brightness, and further, since the photosensitive resin composition also contains The second acrylic adhesive resin can control the formation of surface wrinkles and further improve the brightness.

The repeating unit represented by Chemical Formula 1 may be included in an amount of 15% to 25% by weight based on the total amount of the first acrylic adhesive resin, and may be included in an amount of 15% to 25% by weight. The repeating unit represented by Chemical Formula 2 may include the repeating unit represented by Chemical Formula 3 in an amount of 10% by weight to 20% by weight, and may include the repeating unit represented by Chemical Formula 4 in an amount of 40% by weight to 50% by weight.

Specifically, when the repeating unit represented by Chemical Formula 2 is included in an amount of less than 15% by weight or more than 25% by weight based on the total amount of the first acrylic adhesive resin, the surface characteristics may be deteriorated, and there is an improvement in brightness limit.

The first acrylic adhesive resin may be contained in an amount of 1 to 10% by weight, for example, 1 to 5% by weight based on the total amount of the photosensitive resin composition. The second acrylic adhesive resin may be contained in an amount of 5 to 15% by weight, for example, 5 to 10% by weight based on the total amount of the photosensitive resin composition. When the included first acrylic adhesive resin and the second acrylic adhesive resin are within the range, since the crosslinking is improved during the manufacture of the color filter, the brightness, heat resistance, and developability are improved and Surface smoothness can be improved.

In addition, based on the total amount of the second acrylic adhesive resin, the repeating unit represented by Chemical Formula 1 may be included in an amount of 15% to 25% by weight, and may be included in an amount of 5% to 15% by weight. The repeating unit represented by Chemical Formula 5 may include the repeating unit represented by Chemical Formula 6 in an amount of 15% to 25% by weight, and may include the repeating unit represented by Chemical Formula 7 in an amount of 35% to 45% by weight. And may include the repeating unit represented by Chemical Formula 8 in an amount of 5 to 15% by weight.

When the repeating unit represented by Chemical Formula 1 to Chemical Formula 8 included in the first acrylic adhesive resin and the second acrylic adhesive resin is within the range, the pattern surface characteristics can be further improved.

A weight average molecular weight of the first acrylic adhesive resin may be 2,000 g / mol to 9,000 g / mol, and an acid value thereof may be 100 mgKOH / g to 120 mgKOH / g. In addition, a weight average molecular weight of the second acrylic adhesive resin may be 10,000 g / mol to 17,000 g / mol, and an acid value thereof may be 80 mgKOH / g To 99 mgKOH / g.

When the weight average molecular weight and acid value of the first acrylic adhesive resin and the second acrylic adhesive resin are within the ranges, respectively, the developability during pattern formation and the close contact force of the pattern can be improved.

An amount of the first acrylic adhesive resin included may be smaller than that of the second acrylic adhesive resin. When the amount of the first acrylic adhesive resin included is the same as the amount of the second acrylic adhesive resin (or the amount of the first acrylic adhesive resin included is greater than that of the second acrylic adhesive resin), it may be The developability may be deteriorated.

The photosensitive resin composition may further include an epoxy adhesive resin (A3).

The photosensitive resin composition according to the embodiment can improve heat resistance by further containing an epoxy adhesive resin. The epoxy adhesive resin may be, for example, phenol novolac epoxy resin, tetramethyl biphenyl epoxy resin, bisphenol A epoxy resin, bisphenol A epoxy resin, A bisphenol F epoxy resin, an alicyclic epoxy resin, or a combination thereof is not limited thereto.

In addition, the epoxy adhesive resin can ensure dispersion stability of dyes and pigments to be described later, and at the same time, it helps to form pixels having a desired resolution during development.

The epoxy adhesive resin may have an epoxy equivalent weight (g / eq) of 150 g / eq to 200 g / eq. When an epoxy equivalent is included in the adhesive resin, the epoxy adhesive in the range is included. When used as an epoxy resin, the epoxy adhesive resin can improve the curing degree of the pattern and promote the adhesion of the dye in the pattern-forming structure.

The epoxy adhesive resin may be contained in an amount of 0.1 to 5% by weight, for example, 0.1 to 3% by weight based on the total amount of the photosensitive resin composition.

(B) Photopolymerizable monomer

The photopolymerizable monomer may be a (meth) acrylic monofunctional or polyfunctional ester containing at least one ethylenically unsaturated double bond, and may be combined with a monofunctional or polyfunctional ester.

The photopolymerizable monomer has an ethylenically unsaturated double bond, and therefore, it can cause sufficient polymerization during exposure during pattern formation and form a pattern having excellent heat resistance, light resistance, and chemical resistance.

Specific examples of the photopolymerizable monomer may be ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, propylene glycol di (methyl) ) Acrylate, neopentyl glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, bisphenol A di (Meth) acrylate, pentaerythritol di (meth) acrylate, pentaerythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol hexa (meth) acrylate, dipentaerythritol di (meth) Acrylate, dipentaerythritol tri (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, bisphenol A epoxy (meth) acrylate, ethylene glycol mono Methyl ether (meth) acrylate, trimethylolpropane tri (meth) acrylate, tri (meth) acryloxyethyl phosphate, phenolic epoxy (meth) acrylate, or a combination thereof.

Commercial examples of the photopolymerizable monomer are as follows. Monofunctional (meth) acrylates may include Aronix M-101 ^® , M-111 ^® , M-114 ^® (Toagosei Chemistry Industry Co., Ltd.); Kayala (KAYARAD) TC-110S ^® , TC-120S ^® (Nippon Kayaku Co., Ltd.); V-158 ^® , V-2311 ^® (Osaka Organic Chemical Ind ., Ltd.)) And so on. Difunctional (meth) acrylates may include yarrow Nice ^{(Aronix) M-210 ®,} M-240 ®, M-6200 ® ( Chemicals East Asia Co., Ltd.), to give Kaya La (KAYARAD) HDDA ^®, HX -220 ^® , R-604 ^® (Nippon Kayaku Co., Ltd.), V-260 ^® , V-312 ^® , V-335 HP ^® (Osaka Organic Chemical Co., Ltd.), etc. Examples of trifunctional (meth) acrylates may include Aronix M-309 ^® , M-400 ^® , M-405 ^® , M-450 ^® , M-7100 ^® , M-8030 ^® , M- 8060 ^® (East Asia Chemical Co., Ltd.), KAYARAD TMPTA ^® , DPCA-20 ^® , DPCA-30 ^® , DPCA-60 ^® , DPCA-120 ^® (Nippon Kayaku Co., Ltd.), V-295 ^® , V-300 ^® , V-360 ^® , V-GPT ^® , V-3PA ^® , V-400 ^® (Osaka Organic Chemical Co., Ltd.), etc. These photopolymerizable monomers may be used alone or as a mixture of two or more.

The photopolymerizable monomer may be treated with an acid anhydride to improve developability.

In addition, the photopolymerizable monomer may further include a compound represented by Chemical Formula 9 in addition to a monofunctional or polyfunctional ester,

In Chemical Formula 9, R ¹⁰ to R ^{15 are} independently represented by Chemical Formula 10,

However, in Chemical Formula 10, n is an integer of 1 or 2.

For example, n may be an integer of two.

Generally, a photosensitive resin composition for a color filter mainly contains dipentaerythritol hexaacrylate as a photopolymerizable monomer, but when coated, exposed, developed, and cured (post-baking) to form a photosensitive resin When the layer is formed, water stains can be generated on the pattern of the photosensitive resin layer, and a solution to explicitly solve the water stain problem has not yet been proposed.

However, the photosensitive resin composition according to the embodiment includes a compound represented by Chemical Formula 9 as a photopolymerizable monomer, and thus the water stain problem can be reliably solved.

The photopolymerizable monomer may be contained in an amount of 1 to 10% by weight, for example, 5 to 10% by weight based on the total amount of the photosensitive resin composition. When the contained photopolymerizable monomer is within the range, the photopolymerizable monomer is sufficiently cured during the exposure of the pattern forming process and has excellent reliability, and the developability of the alkaline developer can be improved.

(C) Photopolymerization initiator

The photopolymerization initiator may be an acetophenone-based compound. compound), benzophenone-based compound, thioxanthone-based compound, benzoin-based compound, triazine-based compound, oxime Series compounds (oxime-based compounds) and the like.

Examples of the acetophenone-based compound may be 2,2'-diethoxyacetophenone, 2,2'-dibutoxyacetophenone, 2-hydroxy-2-methylacetophenone, p-tert-butyl Trichloroacetophenone, p-tert-butyldichloroacetophenone, 4-chloroacetophenone, 2,2'-dichloro-4-phenoxyacetophenone, 2-methyl-1- (4- (Methylthio) phenyl) -2-morpholinopropan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -but-1-one, etc. .

Examples of the benzophenone-based compound may be benzophenone, benzophenone benzoic acid, benzoylbenzoic acid methyl, 4-phenylbenzophenone, hydroxybenzophenone, Acrylated benzophenone, 4,4'-bis (dimethylamino) benzophenone, 4,4'-bis (diethylamino) benzophenone, 4,4'-dimethylamino Benzophenone, 4,4'-dichlorobenzophenone, 3,3'-dimethyl-2-methoxybenzophenone and the like.

Examples of the thioxanthone-based compound may be thioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone , 2-chlorothioxanthone and so on.

Examples of the benzoin-based compound may be benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzyl dimethyl ketal, and the like.

Examples of the triazine-based compound may be 2,4,6-trichloro-s-triazine, 2-phenyl-4,6-bis (trichloromethyl) -s-triazine, 2- (3 ', 4'-dimethoxystyryl) -4,6-bis (trichloromethyl) -s-triazine, 2- (4'-methoxynaphthyl) -4,6-bis (trichloro (Methyl) -s-triazine, 2- (p-methyl (Oxyphenyl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-tolyl) -4,6-bis (trichloromethyl) -s-triazine, 2- Biphenyl-4,6-bis (trichloromethyl) -s-triazine, bis (trichloromethyl) -6-styryl-s-triazine, 2- (naphtho1-yl)- 4,6-bis (trichloromethyl) -s-triazine, 2- (4-methoxynaphtho1-yl) -4,6-bis (trichloromethyl) -s-triazine, 2 -4-bis (trichloromethyl) -6-piperyl-s-triazine, 2--4-bis (trichloromethyl) -6- (4-methoxystyryl) -s-triazine Wait.

Examples of the oxime-based compound may be an O-fluorenyl oxime-based compound, 2- (O-benzylidene oxime) -1- [4- (phenylthio) phenyl] -1,2-octanedione, 1 -(O-ethylamidoxime) -1- [9-ethyl-6- (2-methylbenzylidene) -9H-oxazol-3-yl] ethanone, O-ethoxycarbonyl-α -Oxoamino-1-phenylpropan-1-one and the like. Specific examples of the O-fluorenyl oxime-based compound may be 1,2-octanedione, 2-dimethylamino-2- (4-methylbenzyl) -1- (4-morpholin-4-yl -Phenyl) -butan-1-one, 1- (4-phenylthiophenyl) -butan-1,2-dione-2-oxime-O-benzoate, 1- (4-phenylthio Phenyl) -octyl-1,2-dione-2-oxime-O-benzoate, 1- (4-phenylthiophenyl) -oct-1-oneoxime-O-acetate, 1- (4-phenylthiophenyl) -butan-1-oneoxime-O-acetate and the like.

For example, the photopolymerization initiator may include an oxime-based compound represented by Chemical Formula 13.

In Chemical Formula 13, R ²² and R ^{23 are} independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group, and L ¹ is a substituted or unsubstituted C1 to C10 alkylene group.

When the photopolymerization initiator of the photosensitive resin composition according to the embodiment includes a compound represented by Chemical Formula 13, close contact force can be improved.

In addition to the compound, the photopolymerization initiator may further include an oxazole-based compound, a dione-based compound, a borate fluorene-based compound, a diazonium-based compound, an imidazole-based compound, a biimidazole-based compound, a fluorene-based compound, and the like.

The photopolymerization initiator may be used with a photosensitizer capable of causing a chemical reaction by absorbing light and being excited, and then transmitting its energy.

Examples of the photosensitizer may be tetraethylene glycol bis-3-mercaptopropionate, pentaerythritoltetrakis-3-mercaptopropionate, dipentaerythritol tetra-3 -Mercaptopropionate (dipentaerythritoltetrakis-3-mercaptopropionate) and the like.

The photopolymerization initiator may be contained in an amount of 0.1 to 5% by weight, for example, 0.1 to 3% by weight based on the total amount of the photosensitive resin composition. When the photopolymerization initiator is included in the range, sufficient photopolymerization occurs during the exposure of the pattern forming process, and the transmittance can be prevented from being deteriorated by the non-reaction initiator.

(D) Colorant

The photosensitive resin composition according to the embodiment includes a colorant, and the colorant may include a pigment, a dye, or a combination thereof. For example, the colorant may include a pigment and a dye represented by Chemical Formula 11.

In Chemical Formula 11, Y ¹ to Y ^{12 are} independently Cl or Br, and R ¹⁶ to R ^{19 are} independently a halogen atom, a substituted or unsubstituted C1 to C20 alkyl group, a substituted C3 to C20 alkoxy group , A substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C6 to C20 aryloxy group, and at least one of R ¹⁶ to R ¹⁹ is represented by Chemical Formula 12.

Wherein, in Chemical Formula 12, R ²⁰ and R ^{21 are} independently C1 to C10 alkyl groups which are unsubstituted or substituted with C1 to C5 alkyl groups, o and p are independently integers ranging from 0 to 5, and 1 o + p 5.

The compound represented by Chemical Formula 11 has improved green spectral characteristics and high brightness. In addition, the compound represented by Chemical Formula 11 includes an aryloxy group represented by Chemical Formula 12, which includes an alkyl group as a substituent, and since the alkyl group is not Substituted or only substituted with alkyl groups, the compound may have excellent solubility in organic solvents.

The above R ²⁰ and R ²¹ may be independently a substituent including an isopropyl group or a tert-butyl group (for example, a tert-butyl group) at the terminal. The alkyl group (the substituent of the aryloxy group represented by Chemical Formula 12) includes an isopropyl group or a tert-butyl group (for example, a tert-butyl group), and thus can increase the solubility in an organic solvent and achieve excellent brightness.

o and p are independently integers of 1. The aryloxy group represented by Chemical Formula 12 includes two substituted or unsubstituted alkyl groups as an alkyl substituent, and thus may have superior solubility in an organic solvent than an aryloxy group including one alkyl group as a substituent. .

For example, Chemical Formula 12 may be represented by Chemical Formula 12-1.

In Chemical Formula 12-1, R ²⁰ and R ^{21 are} independently a substituted or unsubstituted C1 to C10 alkyl group as an alkyl group.

R ²⁰ may exist at an ortho position related to the oxygen atom of the aryloxy group, and R ²¹ may exist at a para position related to the oxygen atom of the aryloxy group. When the alkyl substituent is present at each ortho and para positions related to the oxygen atom of the aryloxy group, superior in solubility and brightness can be obtained compared to when the alkyl substituent is not present at the above-mentioned position. Effect.

For example, at least two (for example, at least three) of R ¹⁶ to R ¹⁹ may be represented by Chemical Formula 12. For example, all of R ¹⁶ to R ¹⁹ may be represented by Chemical Formula 12.

The larger the number of substituents represented by Chemical Formula 12, the more excellent the solubility of the compound according to an embodiment in an organic solvent.

The dye represented by Chemical Formula 11 may be represented by one selected from Chemical Formula 11-1 to Chemical Formula 11-8.

[Chemical Formula 11-2]

[Chemical Formula 11-4]

[Chemical Formula 11-6]

[Chemical Formula 11-8]

The pigment may include an organic pigment, such as a red pigment, a green pigment, a blue pigment, a yellow pigment, and the like. For example, the pigment may be a green pigment, a yellow pigment, or a combination thereof.

Examples of red pigments may be color index (C.I.) red pigment 254, C.I. red pigment 255, C.I. red pigment 264, C.I. red pigment 270, C.I. red pigment 272, C.I. red pigment 177, C.I. red pigment 89, and the like.

Examples of the green pigment may be a copper substituted phthalocyanine pigment substituted with halogen, such as C.I. green pigment 58, C.I. green pigment 59, C.I. green pigment 36, C.I. green pigment 7, and the like.

An example of a blue pigment may be a ketophthalocyanine pigment, such as CI blue pigment 15: 6, CI blue pigment 15, CI blue pigment 15: 1, CI blue pigment 15: 2, CI blue pigment 15: 3 , CI blue pigment 15: 4, CI blue pigment 15: 5, CI blue pigment 16 and the like.

An example of a yellow pigment may be an isoindoline-based pigment. pigments, such as C.I. yellow pigment 139; quinophthalone-based pigments, such as C.I. yellow pigment 138; nickel complex pigments, such as C.I. yellow pigment 150, and the like.

The pigment may be used alone or in the form of a mixture of two or more, but is not limited thereto.

The photosensitive resin composition may further include a dispersant to improve dispersibility of the pigment. Specifically, the surface of the pigment may be pretreated with a dispersant or the pigment may be added together with the dispersant to prepare a photosensitive resin composition.

The dispersant may be a nonionic dispersant, an anionic dispersant, a cationic dispersant, or the like. Specific examples of the dispersant may be polyalkylene glycol and its ester, polyoxyalkylene, polyol ester alkylene oxide addition product, alcohol alkylene oxide addition product, sulfonate, sulfonate, carboxylic acid ester , Carboxylates, alkylamidoalkylene oxide addition products, alkylamines, etc., and these dispersants can be used alone or in the form of a mixture of two or more.

Commercial examples of the dispersant may include DISPERBYK-101, DISPERBYK-130, DISPERBYK-140, DISPERBYK-160, DISPERBYK-161 made by BYK Co., Ltd. , DISPERBYK-162, DISPERBYK-163, DISPERBYK-164, DISPERBYK-165, DISPERBYK-166, DISPERBYK-170, DISPERBYK-171, DISPERBYK-182, DISPERBYK-2000, DISPERBYK-2001; EFKA Chemicals Co. (EFKA Chemicals Co .) Made of EFKA-47, EFKA-47EA, EFKA-48, EFKA-49, EFKA-100, EEKA-400, EFKA-450; cables made by Zeneka Co. Solsperse 5000, Solsperse 12000, Solsperse 13240, Solsperse 13940, Solsperse 17000, Solsperse 20000, Solsperse 24000GR, Solsperse 27000, Solsperse 28000, etc .; or PB711, PB821 made by Ajinomoto Inc.

The dispersant may be included in an amount of 0.1 to 15% by weight based on the total amount of the photosensitive resin composition. When the contained dispersant is within the range, the composition has excellent stability, developability, and pattern forming ability due to improved dispersion properties during the manufacture of the light blocking layer.

Pigments can be pretreated with water-soluble inorganic salts and wetting agents. When the pigment is pretreated, the average particle size of the pigment can be made finer.

The pretreatment can be performed by kneading the pigment with a water-soluble inorganic salt and a wetting agent, and then filtering and washing the kneaded pigment.

Kneading may be performed at a temperature of 40 ° C to 100 ° C, and filtering and washing may be performed by filtering the pigment after washing off the inorganic salt with water or the like.

Examples of the water-soluble inorganic salt may be, but are not limited to, sodium chloride, potassium chloride, and the like. The wetting agent can uniformly mix and pulverize the pigment with the water-soluble inorganic salt. Examples of wetting agents include alkylene glycol monoalkyl ethers such as ethylene glycol monoethyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, and the like; alcohols such as ethanol, isopropyl Alcohols, butanol, hexanol, cyclohexanol, ethylene glycol, diethylene glycol, polyethylene glycol, glycerol polyethylene glycol, and the like. These wetting agents may be used alone or in the form of a mixture of two or more.

The kneaded pigment may have a thickness between 30 nanometers (nm) and 100 nanometers (nm) The average particle size within the range. When the average particle diameter of the pigment is within the range, heat resistance and light resistance are improved, and a fine pattern can be effectively formed.

Specifically, the pigment may be used in the form of a pigment dispersion including a dispersant and a solvent to be described later, and the pigment dispersion may include a solid pigment, a dispersant, and a solvent. The solid pigment may be contained in an amount of 10 to 15% by weight based on the total amount of the pigment dispersion.

The colorant may be contained in an amount of 30% to 55% by weight, for example, 30% to 50% by weight based on the total amount of the photosensitive resin composition. When the contained coloring agent is within the range, brightness, color reproducibility, pattern curability, heat resistance, and close contact force are improved.

(E) Solvent

The solvent is a material that is compatible with the binder resin, the photopolymerizable monomer, the photopolymerization initiator, and the coloring agent but does not react therewith.

Examples of the solvent may include alcohols such as methanol, ethanol, etc .; ethers such as dichloroethyl ether, n-butyl ether, diisoamyl ether, methylphenyl ether, tetrahydrofuran, etc .; glycol ethers such as ethylene glycol methyl ether, ethyl Glycol ethyl ether, propylene glycol methyl ether, etc .; Cellosolve acetates, such as methyl cellosolve acetate, ethyl cellosolve acetate, diethyl cellosolve acetate, etc .; card Alcohol, such as methyl ethyl carbitol, diethyl carbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl Ether, diethylene glycol diethyl ether, etc .; propylene glycol alkyl ether acetates, such as propylene glycol methyl ether acetate, propylene glycol propyl ether acetate, etc .; aromatic hydrocarbons, such as toluene, xylene, etc .; ketones, such as Methyl ethyl ketone, cyclohexanone, 4-hydroxy-4-methyl-2-pentanone, methyl-n-acetone, Methyl-n-butanone, methyl-n-pentanone, 2-heptanone, etc .; saturated aliphatic monocarboxylic acid alkyl esters, such as ethyl acetate, n-butyl acetate, isobutyl acetate, etc .; alkyl lactate , Such as methyl lactate, ethyl lactate, etc .; alkyl glycolate, such as methyl glycolate, ethyl glycolate, butyl glycolate, etc .; alkoxyalkyl acetate, such as methoxymethyl acetate , Methoxyethyl acetate, methoxybutyl acetate, ethoxymethyl acetate, ethoxyethyl acetate, etc .; alkyl 3-hydroxypropionate, such as methyl 3-hydroxypropionate Esters, ethyl 3-hydroxypropionate, etc .; alkyl 3-alkoxypropionates, such as methyl 3-methoxypropionate, ethyl 3-methoxypropionate, 3-ethoxypropionate Ethyl ester, methyl 3-ethoxypropionate, etc .; alkyl 2-hydroxypropionate, such as methyl 2-hydroxypropionate, ethyl 2-hydroxypropionate, propyl 2-hydroxypropionate, etc .; 2 -Alkoxy propionate alkyl esters, such as methyl 2-methoxypropionate, ethyl 2-methoxypropionate, ethyl 2-ethoxypropionate, methyl 2-ethoxypropionate Etc; alkyl 2-hydroxy-2-methylpropanoate, such as 2-hydroxy-2-methyl Methyl ester, ethyl 2-hydroxy-2-methylpropionate, etc .; alkyl 2-alkoxy-2-methylpropionate, such as methyl 2-methoxy-2-methylpropionate, 2-ethoxy-2-methylpropionate, etc .; esters, such as 2-hydroxyethyl propionate, 2-hydroxy-2-methylethyl propionate, hydroxyethyl acetate, 2-hydroxy Methyl-3-methylbutanoate, etc .; or ketoesters, such as ethyl pyruvate, etc., and additionally N-methylformamide, N, N-dimethylformamide, N-methylformamide Aniline, N-methylacetamide, N, N-dimethylacetamide, N-methylpyrrolidone, dimethyl sulfene, benzyl ether, dihexyl ether, acetoacetone, isophor Ketone, caproic acid, octanoic acid, 1-octanol, 1-nonanol, benzyl alcohol, benzyl acetate, ethyl benzoate, diethyl oxalate, diethyl maleate, γ-butyrolactone, Ethylene carbonate, propylene carbonate, phenyl cellosolve acetate, and the like, and these solvents may be used alone or as a mixture of two or more.

Considering miscibility and reactivity, glycol ethers, such as ethylene glycol monoethyl ether, can be advantageously used; ethylene glycol alkyl ether acetate, such as ethyl solvents Cellulose acetate, etc .; Ester, such as 2-hydroxyethyl propionate, etc .; Diethylene glycol, such as diethylene glycol monomethyl ether, etc. Propylene glycol alkyl ether acetate, such as propylene glycol monomethylether acetate, propylene glycol propylether acetate, and the like.

Based on the total amount of the photosensitive resin composition, a solvent may be included in the balance (for example, 30 to 60% by weight, for example, 30 to 50% by weight). When the contained solvent is within the above range, the coating property of the photosensitive resin composition is improved, and a film having improved flatness can be obtained.

(F) Other additives

The photosensitive resin composition may further include the following other additives to prevent stains or spots during coating, adjust leveling, or prevent pattern residue due to undeveloped: for example, malonic acid; 3-amino-1,2-propanediol Silane-based coupling agents; leveling agents; fluorine-based surfactants; radical polymerization initiators; or combinations thereof.

Examples of the silane-based coupling agent may be trimethoxysilylbenzoic acid, γ-methacryloxypropyltrimethoxysilane, vinyltriethoxysilane, vinyltrimethoxysilane, γ-isocyanate Propyltriethoxysilane, γ-glycidoxypropyltrimethoxysilane, β- (3,4-epoxycyclohexyl) ethyltrimethoxysilane, etc., and this These silane-based coupling agents may be used alone or as a mixture of two or more.

Examples of the fluorine-based surfactant may be the following commercially available fluorine-based surfactants: for example, BM-1000 ^® and BM-1100 ^® (BM Chemie Inc.); MEGAFACE F 142D ^® , F 172 ^® , F 173 ^® and F 183 ^® (Dainippon Ink Kagaku Kogyo Co., Ltd.); FULORAD FC-135 ^® , FULORAD FC-170C ^® , FULORAD FC-430 ^® and FULORAD FC-431 ^® (manufactured by Sumitomo 3M Co., Ltd. (Sumitomo 3M Co., Ltd). ); Shafu Long ^{(SURFLON) S-112 ®,} SURFLON S-113 ®, SURFLON S-131 ®, SURFLON S-141 ^® and SURFLON S-145 ^® (Asahi Glass Co., Ltd.); and SH-28PA ^® , SH-190 ^® , SH-193 ^® , SZ-6032 ^® and SF- 8428 ^® and the like (Toray Silicone Co., Ltd.).

The amount of these additives can be adjusted according to the desired properties.

Another embodiment provides a photosensitive resin layer manufactured using the photosensitive resin composition.

Still another embodiment provides a color filter including the photosensitive resin layer.

The method of manufacturing a color filter is as follows.

The above photosensitive resin composition is coated on a glass substrate by an appropriate method (for example, spin coating, roll coating, spray coating, etc.) to form a resin composition layer having a thickness of 0.5 μm to 10 μm.

Subsequently, the substrate having the resin composition layer is irradiated with light to form a color filter The required pattern for the light sheet. The irradiation may be performed using ultraviolet rays, electron beams, or X-rays as a light source, and the ultraviolet rays may be radiated, for example, in a region of 190 nm to 450 nm and specifically 200 nm to 400 nm. The irradiation may be performed by further using a photoresist mask. After the irradiation process is performed in this manner, the resin composition layer exposed to the light source is processed with a developer. Herein, the unexposed areas in the resin composition layer are dissolved and form a pattern for a color filter. This process can be repeated multiple times according to the number of colors required to obtain a color filter with the desired pattern. In addition, when the image pattern obtained by development in the above process is cured by reheating or irradiating actinic rays thereto, crack resistance, solvent resistance, and the like can be improved.

Hereinafter, the present invention will be described in more detail with reference to examples. However, these examples should not be construed as limiting the scope of the invention in any sense.

(Preparation of acrylic adhesive resin)

Synthesis example 1 to synthesis example 4

2 g of AIBN was put into a 100 ml beaker as an initiator, and monomers for polymerization were sequentially added thereto at a weight% ratio shown in Table 1 until the total was 40 g, and the mixture was stirred for 30 minutes. Subsequently, 70 g of propylene glycol monomethyl ether acetate was put into a 250 ml glass reactor equipped with a cooler to perform a polymerization reaction, and then heated to 85 ° C., and the prepared monomer solution was added dropwise thereto over 3 hours. . After the reaction was further performed at the same temperature for 6 hours and then the temperature was lowered to room temperature, the reaction was completed, and in this context, the reaction was performed under a nitrogen atmosphere.

(Table 1) (Unit:% by weight)

(Preparation of photosensitive resin composition)

Examples 1 to 7 and Comparative Examples 1 to 3

The photosensitive resin compositions according to Examples 1 to 7 and Comparative Examples 1 to 3 were prepared using the following components to have each composition shown in Table 2.

Specifically, after the content of the photopolymerization initiator was accurately measured, a solvent was added thereto, and the mixture was sufficiently stirred until the photopolymerization initiator was completely dissolved therein (30 minutes or more). Subsequently, an acrylic adhesive resin, an epoxy adhesive resin, and a photopolymerizable monomer were sequentially added thereto, and the obtained mixture was stirred for another hour. Next, colorants and other additives were sequentially added thereto, and the obtained mixture was finally stirred for 2 hours or more. In this case, a photosensitive resin composition is prepared separately.

Each component used in the photosensitive resin composition is as follows.

(A) Adhesive resin

(A-1) Acrylic Adhesive Resin of Synthesis Example 1

(A-2) Acrylic Adhesive Resin of Synthesis Example 2

(A-3) Epoxy adhesive resin (epoxy equivalent: 177 g / eq) (EHPE-3150, DAICEL CHEMICAL)

(A-4) Acrylic Adhesive Resin of Synthesis Example 3

(A-5) Acrylic adhesive resin of Synthesis Example 4

(A-6) acrylic adhesive resin (SKY-095, Samsung SDI Co., Ltd.)

(A-7) acrylic adhesive resin (SKY-141, Samsung SDI Co., Ltd.)

(A-8) acrylic adhesive resin (BX-04, Nippon Shokubai Co., Ltd.)

(B) Photopolymerizable monomer

(B-1) KAYARAD DPCA-120 (Nippon Kayaku Co., Ltd.)

(B-2) DPHA (Nippon Kayaku Co., Ltd.)

(B-3) Viscoat 1000 (OSAKA YUKI)

(C) Photopolymerization initiator

(C-1) oxime-based initiator (NCI-930, ADEKA Corp.)

(C-2) oxime-based initiator (OXE-02, BASF Corp.)

(D) Colorant

(D-1) Green dye represented by Chemical Formula 11-1

[Chemical Formula 11-1]

(D-2) Green pigment dispersion (G58, ENF)

(D-3) Green pigment dispersion (G59, ENF)

(D-4) Auxiliary yellow pigment dispersion (SC-P541-2236 Yellow-M, TOYO Ink LLC.)

(E) Solvent

Propylene glycol monomethylether acetate (PGMEA)

(F) Other additives

Fluorosurfactant (F-554 (10% diluted solution), Di Edison Co., Ltd.)

Evaluation 1: Color characteristics

According to Examples 1 to 7 and Comparative Examples, a coating machine (Opticoat MS-A150, Mikasa Co., Ltd.) was used to obtain a revolution per minute (rpm) of a predetermined thickness. The photosensitive resin compositions of 1 to Comparative Example 3 were coated, and then pre-baked on a hot plate at 90 ° C. Subsequently, the entire surface of the pre-baked composition was exposed using an exposure machine (HB-50110AA, Ushio Inc.) under the conditions of 50 millijoules per square centimeter (mj / cm ² ). , And then baked in an oven at 230 ° C. for 20 minutes to make samples separately. The color characteristics (color coordinates (Gx, Gy), brightness (Y), contrast ratio (CR)) of the samples before and after baking in the oven were measured using an MCPD 3000 device, and the results are shown in Table 3. in.

Evaluation 2: Patterned wrinkles, water stains, close contact, and taper

The photosensitive resin compositions according to Examples 1 to 7 and Comparative Examples 1 to 3 were each subjected to a coating machine (Opticoat MS-A150, Mikasa Co., Ltd.) to obtain a predetermined thickness of revolutions per minute (rpm). It was coated and then naturally dried at room temperature (15 ° C to 25 ° C) for 30 minutes. Next, the exposed photosensitive resin composition was subjected to pattern exposure using a pattern mask under a condition of 50 mj / cm ² using an exposure machine (HB-50110AA, U-Zhiwang Co., Ltd.) at a pressure of 1.5 kgf. The developer was developed in 20-fold diluted Na ₂ CO ₃ and washed at a pressure of 1.0 kgf. Then, the pattern was examined for wrinkles, water stains, close contact, and cone shape using an optical microscope. The results are shown in Table 4 and FIGS. 1 to 21.

Pattern wrinkle evaluation benchmark

○: No pattern wrinkles

x: pattern folds

Pattern water stain assessment benchmark

○: No pattern water stain

△: some patterns of water stains

x: Many pattern water stains

(Table 4)

Referring to Tables 3 and 4, and FIGS. 1 to 21, the photosensitive resin compositions according to Examples 1 to 7 exhibited superior developability as compared to the photosensitive resin compositions according to Comparative Examples 1 to 3. , Close contact force, pattern characteristics, tapered characteristics, etc. and excellent color characteristics (such as brightness, etc.). Specifically, when the repeating unit represented by Chemical Formula 2 is included in an amount of 15% to 25% by weight based on the total amount of the first acrylic adhesive resin, the brightness and close contact force are more excellent, and the pattern wrinkles are further improved. .

Although the invention has been described in connection with exemplary embodiments that are presently considered to be practical, it should be understood that the invention is not limited to the disclosed embodiments, but rather, the invention is intended to cover the scope of patents included with the accompanying application Various modifications and equivalent configurations within the spirit and scope of the Therefore, the above embodiments should be understood as exemplary The invention is not limited in any way.

Claims (16)

A photosensitive resin composition comprising: 1% to 10% by weight (A1) of a first acrylic adhesive resin, including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, and The repeating unit and the repeating unit represented by Chemical Formula 4, wherein the repeating unit represented by Chemical Formula 1 is included in an amount of 15% to 25% by weight based on the total amount of the first acrylic adhesive resin, and 15 The repeating unit represented by Chemical Formula 2 is included in an amount of from 2 to 25% by weight, the repeating unit represented by Chemical Formula 3 is included in an amount of from 10 to 20% by weight, and 40% to 50% by weight of The amount includes the repeating unit represented by Chemical Formula 4; (A2) the second acrylic adhesive resin of 5 to 15% by weight, including the repeating unit represented by Chemical Formula 1, the repeating unit represented by Chemical Formula 5, and The repeating unit represented by 6, the repeating unit represented by Chemical Formula 7 and the repeating unit represented by Chemical Formula 8, wherein the total amount of the second acrylic adhesive resin is contained in an amount of 15% to 25% by weight. Describe The repeating unit represented by Chemical Formula 1 includes the repeating unit represented by Chemical Formula 5 in an amount of 5% to 15% by weight, and includes the repeating unit represented by Chemical Formula 6 in an amount of 15% to 25% by weight, The repeating unit represented by Chemical Formula 7 is included in an amount of 35% to 45% by weight, and the repeating unit represented by Chemical Formula 8 is included in an amount of 5% to 15% by weight; 1% to 10% by weight (B) a photopolymerizable monomer; 0.1 to 5% by weight of (C) a photopolymerization initiator; 30 to 55% by weight of a (D) colorant; and the balance of an (E) solvent, [Chemical Formula 6] Among them, in Chemical Formulas 1 to 8, R ¹ is a substituted or unsubstituted C1 to C10 alkyl group, R ² to R ⁵ and R ⁷ to R ^{9 are} independently a hydrogen atom or substituted or unsubstituted C1 to C10 alkyl, and R ⁶ is substituted or unsubstituted C11 to C20 alkyl. The photosensitive resin composition according to item 1 of the scope of patent application, wherein a weight average molecular weight of the first acrylic adhesive resin is 2,000 g / mol to 9,000 g / mol. The photosensitive resin composition according to item 1 of the scope of the patent application, wherein the acid value of the first acrylic adhesive resin is 100 mgKOH / g to 120 mgKOH / g. The photosensitive resin composition according to item 1 of the patent application range, wherein a weight average molecular weight of the second acrylic adhesive resin is 10,000 g / mol to 17,000 g / mol. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the second acrylic adhesive resin has an acid value of 80 mgKOH / g to 99 mgKOH / g. The photosensitive resin composition according to item 1 of the scope of the patent application, wherein the amount of the first acrylic adhesive resin is smaller than the amount of the second acrylic adhesive resin. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the photosensitive resin composition further comprises (A3) an epoxy adhesive resin. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the photopolymerizable monomer includes a compound represented by Chemical Formula 9: Among them, in Chemical Formula 9, R10 to R15 are independently represented by Chemical Formula 10, [Chemical Formula 10] However, in Chemical Formula 10, n is an integer of 1 or 2. The photosensitive resin composition according to item 8 of the scope of patent application, wherein n is an integer of two. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the colorant includes a pigment and a dye represented by Chemical Formula 11: Among them, in Chemical Formula 11, Y ¹ to Y ^{12 are} independently Cl or Br, and R ¹⁶ to R ^{19 are} independently a halogen atom, a substituted or unsubstituted C1 to C20 alkyl group, or a substituted C3 to C20 alkyl group. An oxy group, a substituted or unsubstituted C6 to C20 aryl group, or a substituted or unsubstituted C6 to C20 aryloxy group, and at least one of R ¹⁶ to R ¹⁹ is represented by Chemical Formula 12, [Chemical Formula 12] Wherein, in Chemical Formula 12, R ²⁰ and R ^{21 are} independently C1 to C10 alkyl groups which are unsubstituted or substituted with C1 to C5 alkyl groups, o and p are independently integers ranging from 0 to 5, and 1 o + p 5. The photosensitive resin composition according to item 10 of the scope of patent application, wherein the dye represented by Chemical Formula 11 is represented by one selected from Chemical Formula 11-1 to Chemical Formula 11-8: [Chemical Formula 11-2] [Chemical Formula 11-4] [Chemical Formula 11-6] [Chemical Formula 11-8] The photosensitive resin composition according to item 10 of the application, wherein the pigment includes a green pigment and a yellow pigment. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the photopolymerization initiator includes a compound represented by Chemical Formula 13: Wherein, in Chemical Formula 13, R ²² and R ^{23 are} independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group, and L ¹ is a substituted or unsubstituted C1 to C10 alkylene group. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the photosensitive resin composition further comprises the following additives: malonic acid, 3-amino-1,2-propanediol, silane-based coupling agent, leveling Agent, fluorine-based surfactant, radical polymerization initiator, or a combination thereof. A photosensitive resin layer manufactured using the photosensitive resin composition as described in any one of Claims 1-14. A color filter including the photosensitive resin layer according to claim 15.