KR101466274B1 - Photosensitive resin composition and black matrix using the same - Google Patents

Abstract

[화학식 2]

(상기 화학식 1 및 2에서, 각 치환기는 명세서에 정의된 바와 같다.)(B) a reactive unsaturated compound, (C) a pigment, (D) an initiator and (E) a solvent, wherein the resin (A) comprises a repeating unit represented by the following general formula (1) and a repeating unit represented by the following general formula And a light-shielding layer using the same.
[Chemical Formula 1]

(2)

(Wherein, in the above formulas (1) and (2), each substituent is as defined in the specification)

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photosensitive resin composition and a light-

The present invention relates to a photosensitive resin composition containing a cadmium resin and a light-shielding layer using the same.

A liquid crystal display device includes a lower substrate on which a light-shielding layer, a color filter, and ITO pixel electrodes are formed; An active circuit composed of a liquid crystal layer, a thin film transistor, and a capacitor capacitor layer; And an upper substrate on which ITO pixel electrodes are formed.

The light-shielding layer serves to cut off light which is transmitted through the substrate other than the transparent pixel electrode in order to prevent the contrast caused by the light transmitted through the thin film transistor from deteriorating, and the colored layers of red, green, The main role is to transmit light of a specific wavelength to express color.

In the pigment dispersion method, a photopolymerizable composition containing a colorant is coated on a transparent substrate, a pattern of a pattern to be formed is exposed, and a non-exposed region is removed with a solvent And repeating a series of steps of thermosetting.

However, when a photosensitive polyimide or a phenolic resin is used as a binder resin according to the pigment dispersion method, it has a high heat resistance, but has a low sensitivity and has a drawback that it is developed with an organic solvent. Conventional systems using azide compounds as photosensitizers have low sensitivity and poor heat resistance or are subject to the influence of oxygen upon exposure.

The acrylic-containing resin is excellent in heat resistance, shrinkage resistance and chemical resistance, but tends to be poor in sensitivity, developability and adhesiveness. Furthermore, in the case of the light-shielding layer, since the content of the black pigment is increased to meet the required optical density, the sensitivity, developability and adhesiveness may be significantly deteriorated.

An aspect of the present invention is to provide a photosensitive resin composition excellent in sensitivity, developability, adhesion, heat resistance, shrink resistance, chemical resistance and taper property.

Another aspect of the present invention is to provide a light-shielding layer produced using the photosensitive resin composition.

An aspect of the present invention relates to (A) a cation resin including a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2); (B) a reactive unsaturated compound; (C) a pigment; (D) an initiator; And (E) a solvent.

[Chemical Formula 1]

(2)

(In the above formulas (1) and (2)

R ³ , R ⁴ , R ¹³ and R ¹⁴ are the same or different and each represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted C 1 to C 20 alkyl group,

R ¹ , R ² , R ¹¹  And R ¹² are each a substituted or unsubstituted (meth) acrylate group,

R < ⁵ > is a silicon-

Z ¹ and Z ¹¹ are the same or different and are a single bond, O, CO, SO ₂ , CR ⁶ R ⁷ , SiR ⁸ R ⁹ (wherein R ⁶ to R ⁹ are the same or different from each other, A substituted or unsubstituted C1 to C20 alkyl group), or a linking group represented by any of the following formulas (4-1) to (4-11)

Z ² and Z ¹² are the same as or different from each other, and the acid anhydride residue or the acid dianhydride residue,

m ¹ , m ² , m ¹¹ and m ¹² are each an integer of 0 to 4, and n ¹ and n ¹¹ are each 1 to 30.)

[Formula 4-1]

[Formula 4-2]

　

　

[Formula 4-3]

[Formula 4-4]

　　　　　　　　　

　　　　　　　　　

[Formula 4-5]

(In the above Formula 4-5,

R ^a is a hydrogen atom, an ethyl group, C ₂ H ₄ Cl, C ₂ H ₄ OH, CH ₂ CH = CH ₂ , or a phenyl group.

[Formula 4-6]

[Formula 4-7]

　

　

[Formula 4-8]

[Chemical Formula 4-9]

　　

　　

[Formula 4-10]

[Formula 4-11]

R ⁵ in Formula 2 may include a substituent represented by Formula 3 below.

(3)

(3)

X ¹ to X ³ are the same or different and are a substituted or unsubstituted C1 to C20 alkyl group,

X ⁴ represents a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C1 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, a C1 to C20 alkylamine group, an ether group, an ester group, A C1 to C20 alkylthiol group, or a C6 to C30 arylthiol group.

N ¹ in the repeating unit represented by the formula ( ¹⁾ and n ¹¹ in the repeating unit represented by the formula (2) may have a molar ratio of 1:30 to 30: 1.

The weight average molecular weight of the cardade resin may be 500 to 50,000 g / mol.

The cation resin may include a terminal group represented by the following formula (5) on at least one of the two terminals.

[Chemical Formula 5]

(In the above formula (5)

And Z ³ is any one of the linking groups represented by the following formulas (6-1) to (6-7).)

[Formula 6-1]

(Wherein R ^b and R ^c are the same or different and each is a hydrogen atom, a substituted or unsubstituted C1 to C20 alkyl group, an ester group or an ether group).

[Formula 6-2]

[Formula 6-3]

[Formula 6-4]

　　　　

　　　　

[Formula 6-5]

Wherein R ^d is O, S, NH, a substituted or unsubstituted C1 to C20 alkylene group, a C1 to C20 alkylamine group, or a C2 to C20 allylamine group.

[Formula 6-6]

　

　

[Formula 6-7]

Wherein the photosensitive resin composition comprises (A) 1 to 30% by weight of the cation resin; (B) 1 to 30% by weight of the reactive unsaturated compound; (C) 1 to 30% by weight of the pigment; (D) 0.01 to 10% by weight of the initiator; And (E) the solvent balance.

The photosensitive resin composition may further comprise an acrylic resin, and the acrylic resin may include a first ethylenic unsaturated monomer including (meth) acrylic acid, maleic acid, itaconic acid, fumaric acid, or a combination thereof; Acrylates such as styrene,? -Methylstyrene, vinyltoluene, vinylbenzyl methyl ether, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2- (Meth) acrylate, benzyl (meth) acrylate, cyclohexyl (meth) acrylate, phenyl (meth) acrylate, 2- (Meth) acrylonitrile, (meth) acrylamide, or a combination thereof, as well as a copolymer of a second ethylenically unsaturated monomer such as vinyl acetate, vinyl acetate, vinyl benzoate, glycidyl .

The weight average molecular weight of the acrylic resin may be 3,000 to 40,000 g / mol.

The cadogy resin and the acrylic resin may be contained in a weight ratio of 99: 1 to 1:99.

The initiator may include a photopolymerization initiator, a radical polymerization initiator, or a combination thereof.

The photosensitive resin composition may further comprise 0.01 to 5 parts by weight of an epoxy compound per 100 parts by weight of the photosensitive resin composition.

Another aspect of the present invention provides a light-shielding layer produced using the photosensitive resin composition.

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

Since the photosensitive resin composition is excellent in sensitivity, developability, adhesion, heat resistance, shrinkage resistance, chemical resistance and taper property, it can be used for manufacturing a light shielding layer, a color filter and the like of a liquid crystal display device.

Fig. 1 is a scanning electron microscopic photograph evaluating the residual characteristics of the photosensitive resin composition according to Example 1. Fig.
2 is a scanning electron micrograph showing the residual property of the photosensitive resin composition according to Comparative Example 1 evaluated.
Fig. 3 is a scanning electron micrograph of a pattern-forming property of the photosensitive resin composition according to Example 1. Fig.
Fig. 4 is a scanning electron microscopic photograph evaluating the pattern forming property of the photosensitive resin composition according to Comparative Example 1. Fig.
Fig. 5 is a scanning electron microscopic photograph evaluating the pattern forming property of the photosensitive resin composition according to Comparative Example 2. Fig.
FIG. 6 is a scanning electron microscopic photograph of the pattern size obtained from the photosensitive resin composition according to Example 2. FIG.
Fig. 7 is an optical microscope image obtained by evaluating the pattern size obtained from the photosensitive resin composition according to Comparative Example 2. Fig.
Fig. 8 is an optical microscopic photograph evaluating the pattern size obtained from the photosensitive resin composition according to Comparative Example 4. Fig.

Hereinafter, embodiments of the present invention will be described in detail. However, it should be understood that the present invention is not limited thereto, and the present invention is only defined by the scope of the following claims.

Unless otherwise specified herein, "substituted" means that at least one hydrogen atom is replaced by a halogen atom (F, Cl, Br, I), a hydroxy group, a C1 to C20 alkoxy group, a nitro group, a cyano group, A thio group, an ester group, an ether group, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, an amidino group, a hydrazino group, a hydrazino group, a carbonyl group, a carbamyl group, A cycloalkyl group having 1 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, a cycloalkenyl group having 3 to 20 carbon atoms, a cycloalkynyl group having 3 to 20 carbon atoms, Substituted with a substituent of a C2 to C20 heterocycloalkyl group, a C2 to C20 heterocycloalkenyl group, a C2 to C20 heterocycloalkynyl group, a C3 to C30 heteroaryl group, or a combination thereof.

Also, unless otherwise specified herein, "hetero" means that at least one heteroatom of N, O, S and P is included in the ring group.

&Quot; (Meth) acrylic acid "refers to both" acrylic acid "and" methacrylic acid " "It means both are possible.

The photosensitive resin composition according to one embodiment includes (A) a cadmium resin, (B) a reactive unsaturated compound, (C) a pigment, (D) an initiator and (E) a solvent.

Each component will be described in detail below.

(A) Carometer  Suzy

The cation resin may include a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2).

[Chemical Formula 1]

(2)

R ³ , R ⁴ , R ¹³ and R ¹⁴ in the general formulas (1) and (2) may be the same or different and each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted C 1 to C 20 alkyl group,

R ¹ , R ² , R ¹¹ in Formulas 1 and 2  And R ¹² may be a substituted or unsubstituted (meth) acrylate group or the like. The cadid-base resin preferably has the above-mentioned R ¹ , R ² , R ¹¹  And (meth) acrylate at the R ¹² position, it is possible to exhibit high sensitivity upon exposure.

R ⁵ in Formula 2 may be a silicon-based organic group.

By containing a silicone-based organic group at the R ⁵ position, the cation resin can have excellent compatibility when it is contained in the photosensitive resin composition, and can improve developability, sensitivity, adhesion and mechanical strength, and has heat resistance and light resistance So that it is possible to work at a high temperature.

R ⁵ in the formula (2) may be a substituent represented by the following formula (3), and the kind thereof is not limited thereto.

(3)

X ¹ to X ³ in the formula (3) may be a C1 to C20 alkyl group, each substituted or unsubstituted.

X ⁴ in Formula 3 is a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C1 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, a C1 to C20 alkylamine group, an ether An ester group, a C1 to C20 alkylthiol group, a C6 to C30 arylthiol group, and the like.

Z ¹ and Z ¹¹ in the above formulas 1 and 2 are the same or different from each other, a single bond, O, CO, SO _2, CR ⁶ R ^7, SiR ⁸ R ⁹ (wherein, R ⁶ to R ⁹ are the same or another And is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), and a linking group represented by the following formulas (4-1) to (4-11).

[Formula 4-1]

[Formula 4-2]

　

　

[Formula 4-3]

[Formula 4-4]

　　　　　　　　　

　　　　　　　　　

[Formula 4-5]

(In the above Formula 4-5,

R ^a is a hydrogen atom, an ethyl group, C ₂ H ₄ Cl, C ₂ H ₄ OH, CH ₂ CH = CH ₂ , or a phenyl group.

[Formula 4-6]

[Formula 4-7]

　

　

[Formula 4-8]

[Chemical Formula 4-9]

　　

　　

[Formula 4-10]

[Formula 4-11]

Z ¹ and Z ¹¹ in the above formulas (1) and (2) are the same or different from each other and Z ² and Z ¹² may be an acid anhydride residue, an acid anhydride residue, and the like.

M ¹ , m ² , m ¹¹ and m ¹² in the general formulas (1) and (2) are each an integer of 0 to 4, and n ¹ and n ¹¹ may each be 1 to 30.

N ¹ in the repeating unit represented by the formula ( ¹⁾ and n ¹¹ in the repeating unit represented by the formula (2) may have a molar ratio of 1:30 to 30: 1, specifically 30:70 to 70:30 Can be obtained. When the molar ratio of n ¹ and n ¹¹ is within the above range, the developing property is excellent, the sensitivity upon photo-curing is good, and the fine pattern forming property is excellent.

The cation resin may include a terminal group represented by the following formula (5) on at least one of the two terminals.

[Chemical Formula 5]

Z ³ in the formula (5) may be any of the linking groups represented by the following formulas (6-1) to (6-7).

[Formula 6-1]

(Wherein R ^b and R ^c are the same or different and each is a hydrogen atom, a substituted or unsubstituted C1 to C20 alkyl group, an ester group or an ether group).

[Formula 6-2]

[Formula 6-3]

[Formula 6-4]

　　　　

　　　　

[Formula 6-5]

Wherein R ^d is O, S, NH, a substituted or unsubstituted C1 to C20 alkylene group, a C1 to C20 alkylamine group, or a C2 to C20 allylamine group.

[Formula 6-6]

　

　

[Formula 6-7]

The weight average molecular weight of the carded resin may be 500 to 50,000 g / mol, and specifically 1,000 to 30,000 g / mol. When the weight average molecular weight of the cation resin is within the above range, pattern formation is good without residue in the production of the light-shielding layer, and good pattern can be obtained without loss of film thickness upon development.

The cardboard resin may be included in an amount of 1 to 30% by weight based on the total amount of the photosensitive resin composition, and may be included in an amount of 3 to 20% by weight. When the cation resin is contained within the above range, excellent sensitivity, developability and adhesion can be obtained.

The photosensitive resin composition may further comprise an acrylic resin in addition to the cation resin.

The acrylic resin may contain a first ethylenic unsaturated monomer 　 And a second ethylenically unsaturated monomer copolymerizable therewith, and is a resin comprising at least one acrylic repeating unit.

The first ethylenically unsaturated monomer is an ethylenically unsaturated monomer containing at least one carboxyl group, and specific examples thereof include (meth) acrylic acid, maleic acid, itaconic acid, fumaric acid or a combination thereof.

The first ethylenically unsaturated monomer may be contained in an amount of 5 to 50% by weight, specifically 10 to 40% by weight based on the total amount of the acrylic resin.

The second ethylenically unsaturated monomer may be an aromatic vinyl compound such as styrene,? -Methylstyrene, vinyltoluene, or vinylbenzyl methyl ether; (Meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxybutyl (meth) acrylate, benzyl (meth) acrylate, Unsaturated carboxylic acid ester compounds such as cyclohexyl (meth) acrylate and phenyl (meth) acrylate; Unsaturated carboxylic acid aminoalkyl ester compounds such as 2-aminoethyl (meth) acrylate and 2-dimethylaminoethyl (meth) acrylate; Carboxylic acid vinyl ester compounds such as vinyl acetate and vinyl benzoate; Unsaturated carboxylic acid glycidyl ester compounds such as glycidyl (meth) acrylate; A vinyl cyanide compound such as (meth) acrylonitrile; Unsaturated amide compounds such as (meth) acrylamide; These may be used singly or in combination of two or more.

Specific examples of the acrylic resin include acrylic acid / benzyl methacrylate copolymer, methacrylic acid / benzyl methacrylate copolymer, methacrylic acid / benzyl methacrylate / styrene copolymer, methacrylic acid / benzyl methacrylate / 2 -Hydroxyethyl methacrylate copolymer, methacrylic acid / benzyl methacrylate / styrene / 2-hydroxyethyl methacrylate copolymer, but are not limited thereto, and they may be used singly or in combination of two or more kinds. And may be used in combination.

The weight average molecular weight of the acrylic resin may be 3,000 to 150,000 g / mol, specifically 3,000 to 40,000 g / mol, and more specifically 5,000 to 30,000 g / mol. When the weight average molecular weight of the acrylic resin is within the above range, the photosensitive resin composition is excellent in physical and chemical properties, is suitable in viscosity, can maintain an appropriate level of developability and sensitivity, Is excellent.

The acid value of the acrylic resin may be 20 to 200 mgKOH / g, and more specifically 50 to 150 mgKOH / g. When the acid value of the acrylic resin is within the above range, developability can be maintained and the resolution of the pixel pattern is excellent.

When the acrylic resin is contained in the photosensitive resin composition, the cado resin and the acrylic resin may be contained in a weight ratio of 99: 1 to 1:99, and specifically, a weight ratio of 80:20 to 30:70 . When the cation resin and the acrylic resin are contained in the weight ratio range, excellent developability and sensitivity can be maintained, and occurrence of an undercut can be prevented while forming a light shielding layer pattern excellent in taper characteristics.

(B) a reactive unsaturated compound

The reactive unsaturated compound may be a monofunctional or polyfunctional ester of (meth) acrylic acid having at least one ethylenically unsaturated double bond as a monomer or oligomer generally used in a photosensitive resin composition.

By having the ethylenically unsaturated double bond, the reactive unsaturated compound can form a pattern having excellent heat resistance, light resistance and chemical resistance by causing sufficient polymerization during exposure in the pattern formation step.

Specific examples of the reactive unsaturated compound include ethylene glycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, triethylene glycol dimethacrylate, 1,6-hexanediol Diacrylate, 1,6-hexanediol dimethacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, bisphenol A epoxy acrylate , Ethylene glycol monomethyl ether acrylate, trimethylolpropane triacrylate, trisacryloyloxyethyl phosphate, and the like.

Specific examples of the reactive unsaturated compound include ethylene glycol diacrylate, ethylene glycol dimethacrylate, diethylene glycol diacrylate, triethylene glycol diacrylate, triethylene glycol dimethacrylate, 1,6-hexanediol Diacrylate, 1,6-hexanediol dimethacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, dipentaerythritol pentaacrylate, dipentaerythritol hexaacrylate, bisphenol A epoxy acrylate , Ethylene glycol monomethyl ether acrylate, trimethylolpropane triacrylate, trisacryloyloxyethyl phosphate, and the like.

Examples of commercially available products of the above reactive unsaturated compounds are as follows. The (meth) acrylic acid is one example of a polyfunctional ester, such as doah Gosei Kagaku Kogyo's (primary)社Aronix M-101 ^®, the same M-111 ^®, the same M-114 ^®; KAYARAD TC-110S ^® and TC-120S ^{® from} Nihon Kayaku Co., Ltd.; Osaka yukki the like Kagaku Kogyo (main)社of ^{V-158 ®, V-2311} ®. The (meth) transfer function of an example esters of acrylic acid are, doah Gosei Kagaku Kogyo (Note)社of Aronix M-210 ^®, copper or the like M-240 ^®, the same M-6200 ^®; KAYARAD HDDA ^® , HX-220 ^® and R-604 ^{® from} Nihon Kayaku Corporation; Osaka yukki the like Kagaku Kogyo Co., Ltd. of ^{社V-260 ®, V-} 312 ®, V-335 HP ®. Examples of the tri-functional ester of (meth) acrylic acid, doah Gosei Kagaku Kogyo (Note)社of Aronix M-309 ^®, the same M-400 ^®, the same M-405 ^®, the same M-450 ^®, Dong M -7100 ^® , copper M-8030 ^® , copper M-8060 ^® and the like; Nippon Kayaku (Note)社of KAYARAD TMPTA ^®, copper DPCA-20 ^{®, ®} copper -30, -60 ^® copper, copper ^® -120 and the like; Osaka yukki Kayaku high (primary)社of V-295 ^®, copper ^® -300, -360 ^® copper, copper -GPT ^®, copper -3PA ^®, and the like copper -400 ^®. These products may be used alone or in combination of two or more.

The reactive unsaturated compound may be treated with an acid anhydride so as to give better developing properties.

The reactive unsaturated compound may be contained in an amount of 1 to 30% by weight based on the total amount of the photosensitive resin composition, specifically, 1 to 20% by weight. When the reactive unsaturated compound is contained within the above range, the pattern formation process sufficiently cures upon exposure to light, thereby providing excellent reliability, excellent heat resistance, light resistance and chemical resistance of the pattern, and excellent resolution and adhesion.

(C) Pigment

The above-mentioned pigments can be used both as organic pigments and as inorganic pigments.

The pigment may be a red pigment, a green pigment, a blue pigment, a yellow pigment, a black pigment, or the like.

Examples of the red pigment include 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 include C.I. Green pigment 36, C.I. Halogen-substituted copper phthalocyanine pigments such as green pigment 7 and the like. Examples of the blue pigments include C.I. Blue pigment 15: 6, C.I. Blue pigment 15, C.I. Blue pigment 15: 1, C.I. Blue pigment 15: 2, C.I. Blue pigment 15: 3, C.I. Blue pigment 15: 4, C.I. Blue pigment 15: 5, C.I. Blue pigment 16, and the like. Examples of the yellow pigments include C.I. Yellow pigments 139 and the like, C.I. Quinophthalone-based pigments such as yellow pigment 138 and the like, C.I. And yellow complex pigments such as yellow pigment 150 and the like. Examples of the black pigment include aniline black, perylene black, titanium black, and carbon black. These pigments can be used singly or in combination of two or more thereof, but are not limited to these examples.

Among them, the above-mentioned black pigment may be used in order to effectively cut off the light blocking layer. When the black pigment is used, it may be used in combination with a color correcting agent such as an anthraquinone pigment, a perylene pigment, a phthalocyanine pigment or an azo pigment.

A dispersant may be used together with the photosensitive resin composition to disperse the pigment.

Specifically, the pigment may be surface-treated beforehand with a dispersant, or a dispersant may be added together with the pigment when the photosensitive resin composition is prepared.

As the dispersing agent, a nonionic dispersing agent, an anionic dispersing agent, a cationic dispersing agent and the like can be used. Specific examples of the dispersing agent include polyalkylene glycols and esters thereof, polyoxyalkylene, polyhydric alcohol ester alkylene oxide adduct, alcohol alkylene oxide adduct, sulfonic acid ester, sulfonic acid salt, carboxylic acid ester, carboxylic acid Salts, alkylamide alkylene oxide adducts, and alkylamines. These may be used singly or in combination of two or more.

DISPERBYK-161, DISPERBYK-160, DISPERBYK-161, DISPERBYK-161, DISPERBYK-162, DISPERBYK-163, DISPERBYK-164, DISPERBYK-160 and DISPERBYK-160 of BYK Co., -166, DISPERBYK-170, DISPERBYK-171, DISPERBYK-182, DISPERBYK-2000, DISPERBYK-2001 and the like; EFKA-47, EFKA-47EA, EFKA-48, EFKA-49, EFKA-100, EFKA-400 and EFKA-450 of EFKA Chemical Co., Solsperse 5000, Solsperse 12000, Solsperse 13240, Solsperse 13940, Solsperse 17000, Solsperse 20000, Solsperse 24000GR, Solsperse 27000, Solsperse 28000 from Zeneka; Or Ajinomoto's PB711 and PB821.

The dispersant may be contained in an amount of 0.1 to 15% by weight based on the total amount of the photosensitive resin composition. When the dispersant is contained within the above range, the dispersibility of the photosensitive resin composition is excellent, and therefore, the stability, developability and patternability of the light-shielding layer are excellent.

The pigment may be used by pretreatment using a water-soluble inorganic salt and a wetting agent. When the pigment is used in the pretreatment, the primary particle size of the pigment can be reduced.

The pretreatment may be performed by kneading the pigment with a water-soluble inorganic salt and a wetting agent, and filtering and washing the pigment obtained in the kneading step.

The kneading may be carried out at a temperature of 40 to 100 DEG C, and the filtration and washing may be performed by washing the inorganic salt with water, etc., followed by filtration.

Examples of the water-soluble inorganic salt include, but are not limited to, sodium chloride and potassium chloride. The wetting agent acts as a medium through which the pigment and the water-soluble inorganic salt are uniformly mixed to easily pulverize the pigment. Examples of the wetting agent include ethylene glycol monoethyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether and the like Alkylene glycol monoalkyl ethers; And alcohols such as ethanol, isopropanol, butanol, hexanol, cyclohexanol, ethylene glycol, diethylene glycol, polyethylene glycol, glycerin polyethylene glycol and the like. These may be used singly or in combination of two or more thereof.

The pigment after the kneading step may have an average particle size of 30 to 100 nm. When the average particle diameter of the pigment is within the above range, it is possible to effectively form a fine pattern with excellent heat resistance and light resistance.

The pigment may be contained in an amount of 1 to 30% by weight based on the total amount of the photosensitive resin composition, specifically, 2 to 20% by weight. When the pigment is included in the above range, the color reproducibility is excellent and the pattern is excellent in hardenability and adhesion.

(D) Initiator

The initiator may be a photopolymerization initiator, a radical polymerization initiator, or a combination thereof.

The photopolymerization initiator may be, for example, an acetophenone-based compound, a benzophenone-based compound, a thioxanthone-based compound, a benzoin-based compound, or a triazine-based compound as an initiator generally used in a photosensitive resin composition.

Examples of the acetophenone-based compound include 2,2'-diethoxyacetophenone, 2,2'-dibutoxyacetophenone, 2-hydroxy-2-methylpropiophenone, pt-butyltrichloroacetophenone, dichloro-4-phenoxyacetophenone, 2-methyl-1- (4- (methylthio) phenyl) -2-morpholinopropanone, p-butyldichloroacetophenone, 1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one.

Examples of the benzophenone compound include benzophenone, benzoyl benzoic acid, methyl benzoyl benzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylated benzophenone, 4,4'-bis (dimethylamino) benzophenone, '-Bis (diethylamino) benzophenone, 4,4'-dimethylaminobenzophenone, 4,4'-dichlorobenzophenone, and 3,3'-dimethyl-2-methoxybenzophenone.

Examples of the thioxanthone compound include thioxanthone, 2-crothioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diethylthioxanthone, Propyl thioxanthone, 2-chlorothioxanthone, and the like.

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

Examples of the triazine-based compound include 2,4,6-trichloro-s-triazine, 2-phenyl 4,6-bis (trichloromethyl) (Trichloromethyl) -s-triazine, 2- (4'-methoxynaphthyl) -4,6-bis (trichloromethyl) Bis (trichloromethyl) -s-triazine, 2- (p-tolyl) -4,6-bis (trichloromethyl) Bis (trichloromethyl) -s-triazine, bis (trichloromethyl) -6-styryl-s-triazine, 2- (naphtho 1-yl) -4,6 -Bis (trichloromethyl) -s-triazine, 2- (4-methoxynaphtho-1-yl) (Piperonyl) -6-triazine, and 2-4-trichloromethyl (4'-methoxystyryl) -6-triazine.

The photopolymerization initiator may be a carbazole compound, a diketone compound, a sulfonium borate compound, a diazo compound, an imidazole compound, or a nonimidazole compound in addition to the above compounds.

The radical polymerization initiator may be a peroxide compound, an azobis compound, or the like.

Examples of the peroxide compound include ketone peroxides such as methyl ethyl ketone peroxide, methyl isobutyl ketone peroxide, cyclohexanone peroxide, methyl cyclohexanone peroxide, and acetylacetone peroxide; Diacyl peroxides such as isobutyryl peroxide, 2,4-dichlorobenzoyl peroxide, o-methylbenzoyl peroxide, and bis-3,5,5-trimethylhexanoyl peroxide; Hydroperoxides such as 2,4,4-trimethylpentyl-2-hydroperoxide, diisopropylbenzene hydroperoxide, cumene hydroperoxide, and t-butyl hydroperoxide; Dicumyl peroxide, 2,5-dimethyl-2,5-di (t-butylperoxy) hexane, 1,3-bis (t-butyloxyisopropyl) Dialkyl peroxides such as esters; Alkyl peresters such as 2,4,4-trimethylpentyl peroxyphenoxyacetate,? -Cumyl peroxyneodecanoate, t-butyl peroxybenzoate and di-t-butyl peroxytrimethyl adipate; Di-3-methoxybutyl peroxydicarbonate, di-2-ethylhexyl peroxydicarbonate, bis-4-t-butylcyclohexyl peroxydicarbonate, diisopropyl peroxydicarbonate, acetylcyclohexylsulfonyl peroxide, t And percarbonates such as butyl peroxyaryl carbonate.

Examples of the azobis compound include 1,1'-azobiscyclohexane-1-carbonitrile, 2,2'-azobis (2,4-dimethylvaleronitrile), 2,2, -azobis Azoisobutyrate), 2,2'-azobis (4-methoxy-2,4-dimethylvaleronitrile), α, α'-azobis (isobutylnitrile) and 4,4'-azobis - cyanobalenoic acid), and the like.

The initiator may be used in combination with a photosensitizer that causes a chemical reaction by absorbing light to become excited and transferring its energy.

Examples of the photosensitizer include tetraethylene glycol bis-3-mercaptopropionate, pentaerythritol tetrakis-3-mercaptopropionate, dipentaerythritol tetrakis-3-mercaptopropionate and the like .

The initiator may be included in an amount of 0.01 to 10% by weight based on the total amount of the photosensitive resin composition, specifically 0.1 to 5% by weight. When the initiator is contained within the above-described range, the pattern can be sufficiently cured during exposure in order to obtain excellent reliability, excellent in heat resistance, light resistance and chemical resistance, excellent in resolution and adhesion, It is possible to prevent the transmittance from being lowered.

(E) Solvent

The solvent may be a mixture of the cationic resin, the reactive unsaturated compound, the pigment and the initiator but not reacting with the initiator.

Examples of the solvent include alcohols such as methanol and ethanol; Ethers such as dichloroethyl ether, n-butyl ether, diisobutyl ether, methylphenyl ether and tetrahydrofuran; Glycol ethers such as ethylene glycol methyl ether, ethylene glycol ethyl ether and propylene glycol methyl ether; Cellosolve acetates such as methyl cellosolve acetate, ethyl cellosolve acetate and diethyl cellosolve acetate; Carbitols such as methylethylcarbitol, diethylcarbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether and diethylene glycol diethyl ether; Propylene glycol alkyl ether acetates such as propylene glycol methyl ether acetate and propylene glycol propyl ether acetate; Aromatic hydrocarbons such as toluene and xylene; Ketones such as methyl ethyl ketone, cyclohexanone, 4-hydroxy-4-methyl-2-pentanone, methyl-n-propyl ketone, methyl- ; Saturated aliphatic monocarboxylic acid alkyl esters such as ethyl acetate, n-butyl acetate and isobutyl acetate; Lactic acid alkyl esters such as methyl lactate and ethyl lactate; Hydroxyacetic acid alkyl esters such as methylhydroxyacetate, ethylhydroxyacetate and butylhydroxyacetate; Alkoxyalkyl esters such as methoxy methyl acetate, methoxy ethyl acetate, methoxy butyl acetate, ethoxy methyl acetate, and ethoxy ethyl acetate; 3-hydroxypropionic acid alkyl esters such as methyl 3-hydroxypropionate and ethyl 3-hydroxypropionate; 3-alkoxypropionic acid alkyl esters such as methyl 3-methoxypropionate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate and methyl 3-ethoxypropionate; 2-hydroxypropionic acid alkyl esters such as methyl 2-hydroxypropionate, ethyl 2-hydroxypropionate and propyl 2-hydroxypropionate; 2-alkoxypropionic acid alkyl esters such as methyl 2-methoxypropionate, ethyl 2-methoxypropionate, ethyl 2-ethoxypropionate and methyl 2-ethoxypropionate; 2-hydroxy-2-methylpropionic acid alkyl esters such as methyl 2-hydroxy-2-methylpropionate and ethyl 2-hydroxy-2-methylpropionate; 2-alkoxy-2-methylpropionic acid alkyl esters such as methyl 2-methoxy-2-methylpropionate and ethyl 2-ethoxy-2-methylpropionate; Esters such as 2-hydroxyethyl propionate, 2-hydroxy-2-methyl ethyl propionate, hydroxy ethyl acetate and methyl 2-hydroxy-3-methyl butanoate; Or ethyl pyruvate. Examples of the ketone acid esters include N-methylformamide, N, N-dimethylformamide, N-methylformanilide, N-methylacetamide, N, N-dimethylacetamide Benzyl alcohol, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, Ethyl benzoate, diethyl oxalate, diethyl maleate,? -Butyrolactone, ethylene carbonate, propylene carbonate, phenyl cellosolve acetate, etc. These may be used alone or in combination of two or more.

In view of the miscibility and reactivity of the solvent, glycol ethers such as ethylene glycol monoethyl ether and the like; Ethylene glycol alkyl ether acetates such as ethyl cellosolve acetate; Esters such as 2-hydroxyethyl propionate; Diethylene glycol such as diethylene glycol monomethyl ether; Propylene glycol alkyl ether acetates such as propylene glycol monomethyl ether acetate and propylene glycol propyl ether acetate can be used.

The solvent may be contained in an amount of 50 to 90% by weight based on the total amount of the photosensitive resin composition. When the solvent is contained within the above range, the photosensitive resin composition has an appropriate viscosity, and thus the processability in the production of the light-shielding layer is excellent.

(F) Other additives

The photosensitive resin composition may further include an epoxy compound to improve adhesion with the substrate.

Examples of the epoxy compound include a phenol novolak epoxy compound, a tetramethylbiphenyl epoxy compound, a bisphenol A type epoxy compound, an alicyclic epoxy compound, or a combination thereof.

The epoxy compound may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the photosensitive resin composition, and specifically 0.1 to 5 parts by weight. When the epoxy compound is contained within the above range, the adhesiveness and storage stability are excellent.

The photosensitive resin composition may further include a silane coupling agent having a reactive substituent such as a carboxyl group, a methacryloyl group, an isocyanate group or an epoxy group in order to improve the adhesiveness to the substrate.

Examples of the silane coupling agent include trimethoxysilylbenzoic acid,? -Methacryloxypropyltrimethoxysilane, vinyltriacetoxysilane, vinyltrimethoxysilane,? -Isocyanatopropyltriethoxysilane,? - Glycidoxypropyltrimethoxysilane, and? - (3,4-epoxycyclohexyl) ethyltrimethoxysilane. These may be used singly or in combination of two or more.

The silane coupling agent may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the photosensitive resin composition. When the silane coupling agent is contained within the above range, the adhesion and storage stability are excellent.

The above-mentioned photosensitive resin composition may further contain a surfactant for improving coatability and preventing defect formation if necessary.

Examples of the surfactants include, BM Chemie Corporation ^{BM-1000 ®, BM-1100} ® , and the like; Mecha Pack F 142D ^® , Copper F 172 ^® , Copper F 173 ^® , Copper F 183 ^® and the like manufactured by Dainippon Ink & Chemicals Incorporated; M. Sumitomo Co., Inc. Pro rod FC-135 ^®, the same FC-170C ^®, copper FC-430 ^®, the same FC-431 ^®, and the like; Asahi Grass Co., Inc. Saffron S-112 ^®, the same S-113 ^®, the same S-131 ^®, the same S-141 ^®, the same S-145 ^®, and the like; ^® Toray Silicone Co., Ltd.'s SH-28PA, copper -190 ^®, may be used a fluorine-containing surfactants commercially available under the name such as copper ^{-193 ®, SZ-6032 ®,} SF-8428 ®.

The surfactant may be used in an amount of 0.001 to 5 parts by weight based on 100 parts by weight of the photosensitive resin composition. When the surfactant is contained within the above range, coating uniformity is ensured, no staining occurs, and wetting of the glass substrate is excellent.

The photosensitive resin composition may contain a certain amount of other additives such as an antioxidant and a stabilizer within a range that does not impair the physical properties.

Another embodiment provides a light-shielding layer made using the above-described photosensitive resin composition. The method of manufacturing the light-shielding layer is as follows.

(1) Coating and Film Formation Step

The above-mentioned photosensitive resin composition is coated on a predetermined pretreated substrate to a desired thickness, for example, a thickness of 0.5 to 25 占 퐉, by using a spin or slit coat method, a roll coating method, a screen printing method or an applicator method And then the solvent is removed by heating at a temperature of 70 to 110 DEG C for 1 to 10 minutes to form a coating film.

(2) Exposure step

In order to form a pattern necessary for the obtained coating film, a mask of a predetermined type is interposed, and an active line of 190 to 500 nm is irradiated. As the light source used for the irradiation, a low pressure mercury lamp, a high pressure mercury lamp, an ultra high pressure mercury lamp, a metal halide lamp, an argon gas laser, and the like can be used.

The exposure dose varies depending on the kind of each component of the photosensitive resin composition, the blending amount, and the dried film thickness. For example, when a high pressure mercury lamp is used, the exposure dose is 500 mJ / cm ² (By a 365 nm sensor).

(3) Development step

Following the above exposure step, an unnecessary portion is dissolved and removed by using an alkaline aqueous solution as a developing solution, so that only the exposed portion is left to form an image pattern.

(4) Post-treatment step

The image pattern obtained by the above-described development can be cured by heating again or by active ray irradiation or the like in order to obtain a pattern excellent in terms of heat resistance, light resistance, adhesion, crack resistance, chemical resistance, high strength and storage stability.

By using the above-described photosensitive resin composition, excellent insulating properties and optical density required for the light-shielding layer can be obtained.

Hereinafter, preferred embodiments of the present invention will be described. However, the following examples are only a preferred embodiment of the present invention, and the present invention is not limited by the following examples.

Manufacturing example  1-1: Carometer  Resin Manufacturing

(1) A reactor was charged with 138 g of 9,9'-bis (4-glycyloxyphenyl) fluorene (Hear chem), 54 g of acrylic acid, 1.4 g of benzyltriethylammonium chloride 128 g of propylglycolmethylethylacetate (Daicel Chemical Co.) and 0.5 g of hydroquinone were charged, and the mixture was heated to 120 ° C and maintained at that temperature for 12 hours to synthesize a compound represented by the following formula (7-1).

[Formula 7-1]

(2) To the reactor were added 60 g of the compound represented by the above formula (7-1), 11 g of biphenyltetracarboxylic dianhydride (Mitsubishi Gas), 3 g of tetrahydrophthalic anhydride (Aldrich), 10 g of propylglycolmethylethylacetate ), And 0.1 g of N, N'-tetramethylammonium chlorite were added, and the temperature was raised to 120 ° C and then maintained for 2 hours to synthesize a compound represented by the following formula (7-2). The weight average molecular weight of the compound represented by the formula (7-2) was 5,400 g / mol.

[Formula 7-2]

(3) To the reactor were added 50 g of the compound represented by the above formula (7-2), 3 g of glycidyl methacrylate, 0.4 g of triphenylphosphine (Aldrich), 2.5 g of S510 of Chisso, and 0.1 g of hydroquinone, , And the mixture was kept for 3 hours to synthesize a compound represented by the following formula (7-3). The weight average molecular weight of the compound represented by the formula (7-3) was 5,500 g / mol.

[Formula 7-3]

Manufacturing example  1-2: Carometer  Resin Manufacturing

In the reactor, 60 g of the compound represented by the above formula (7-1), 11 g of benzophenone tetracarboxylic dianhydride (Mitsubishi Gas), 3 g of tetrahydrophthalic anhydride (Aldrich) and 20 g of propylglycolmethylethylacetate (Daicel Chemical Co.) , The temperature was raised to 120 ° C, and the mixture was maintained for 2 hours to synthesize a compound represented by the following formula (7-4). 　 The weight average molecular weight of the compound represented by the formula (7-4) was 5,300 g / mol. 　

[Chemical Formula 7-4]

Manufacturing example  2: Preparation of red pigment dispersion

The reactor was charged with C.I. 4 g of DISPERBYK-163 (BYK), 3 g of acrylic acid / benzyl methacrylate copolymer (NPR8000), and 78 g of propylene glycol methyl ethyl acetate were mixed and mixed with a paint shaker, shaker (Asada) for 12 hours to prepare a red pigment dispersion.

Manufacturing example  3: Preparation of black pigment dispersion

15 g of carbon black (Cabot), 4 g of DISPERBYK-163 (BYK), 3 g of acrylic acid / benzyl methacrylate copolymer (Mizuho Company, NPR8000) and 78 g of propylene glycol methyl ethyl acetate were mixed and mixed in a paint shaker -shaker (Asada) for 12 hours to prepare a black pigment dispersion.

Example  1 and 2 and Comparative Example  1 to 4: Photosensitive resin composition production

The photosensitive resin composition according to each of Examples 1 and 2 and Comparative Examples 1 to 4 was prepared with the compositions shown in the following Table 1 by using the following components.

Specifically, after dissolving the initiator in the solvent, the mixture was stirred at room temperature for 2 hours, and then a binder resin and a reactive unsaturated compound were added thereto, followed by stirring at room temperature for 2 hours. Then, the red pigment dispersion prepared in Production Example 2, the black pigment dispersion prepared in Production Example 3, and the silane coupling agent were added to the obtained reaction product, and the mixture was stirred at room temperature for 1 hour. Subsequently, the product was filtered three times to remove impurities, thereby preparing a photosensitive resin composition.

(A) Carometer  Suzy

(A-1) The compound represented by the formula 7-3 prepared in Preparation Example 1-1 was used.

(A-2) The compound represented by the formula 7-4 prepared in Preparation Example 1-2 was used.

(A-3) V259ME of Shinil Chemical Co., Ltd. was used as a cardior resin.

(B) a reactive unsaturated compound

Dipentaerythritol hexaacrylate was used.

(C) Pigment dispersion

(C-1) The red pigment dispersion prepared in Preparation Example 2 was used. At this time, the solid content of the pigment is 15% by weight based on the total amount of the red pigment dispersion.

(C-2) The black pigment dispersion prepared in Preparation Example 3 was used. At this time, the pigment solid content is 15% by weight based on the total amount of the black pigment dispersion.

(D) Initiator

IRGACURE OXE02 from Ciba-Geigy Co. was used.

(E) Solvent

Propylene glycol methyl ether acetate was used.

(F) Additive

As the silane coupling agent,? -Glycidoxypropyltrimethoxysilane (Chisso's S-510) was used.

Example Comparative Example One 2 One 2 3 4 (A) Cadocase resin (% by weight) (A-1) 9.5 9.5 - - - - (A-2) - - 9.5 9.5 - - (A-3) - - - - 9.5 9.5 (B) Reactive unsaturated compound (% by weight) 3.5 3.5 3.5 3.5 3.5 3.5 (C) Pigment dispersion (% by weight) (C-1) 40
(6 *) - 40
(6 *) - 40
(6 *) - (C-2) - 40
(6 *) - 40
(6 *) - 40
(6 *) (D) Initiator (% by weight) 0.5 0.5 0.5 0.5 0.5 0.5 (E) Solvent (% by weight) 44 44 44 44 44 44 (F) Additive (% by weight) 2.5 2.5 2.5 2.5 2.5 2.5

* Represents the solid content of the pigment relative to the total amount of (C-1) red pigment dispersion or (C-2) black pigment dispersion.

Rating 1: Developability  evaluation

The photosensitive resin compositions prepared in Examples 1 and 2 and Comparative Examples 1 to 4 were coated on a silicon wafer (LG Siltron) using a spin coater (KDNS, K-Spin 8) to a height of 0.8 탆, Nikon Corporation, I10C) for 350 ms. Then, on the basis of the time between the time when the aqueous solution was applied and the time when the aqueous solution started to be developed upon development into an aqueous solution of tetramethylammonium hydroxide (TMAH) of 0.2% by weight using a developing machine (SVS, SSP-200) The developability was evaluated, and the results are shown in Table 2 below.

≪ Development evaluation standard &

○: 20 seconds or less

△: more than 20 seconds but less than 30 seconds

×: more than 30 seconds

Evaluation 2: Residue  evaluation

The photosensitive resin compositions prepared in Examples 1 and 2 and Comparative Examples 1 to 4 were coated on a silicon wafer (LG Siltron) using a spin coater (KDNS, K-Spin 8) to a height of 0.8 탆, Nikon Corporation, I10C) for 350 ms. Subsequently, a pattern was prepared using a developer (SVS, SSP-200) in an aqueous solution of tetramethylammonium hydroxide (TMAH) of 0.2% by weight, and then a CD scanning electron microscope (KLA-Tencor, 8100XP) The results are shown in Table 2 below. Also, a scanning electron microscope photograph as a standard for evaluation of the residue is shown in Figs. 1 and 2. Fig.

Fig. 1 is a scanning electron micrograph showing evaluation of the residual characteristics of the photosensitive resin composition according to Example 1, and Fig. 2 is a scanning electron microscopic photograph evaluating the residual characteristics of the photosensitive resin composition according to Comparative Example 1. Fig.

<Evaluation Criteria>

O: When the pattern is smooth as shown in Fig. 1

?: When a part of residue is generated as shown in FIG. 2

1 and 2, it can be confirmed that the surface of the photosensitive resin composition of Example 1 is smooth without residue, and that the photosensitive resin composition of Comparative Example 1 generates residues.

Rating 3: Pattern Formability  evaluation

The photosensitive resin compositions prepared in Examples 1 and 2 and Comparative Examples 1 to 4 were coated on a glass substrate at a height of 3.0 μm using a spin coater and then exposed to light at 35 mJ / cm 2 using an exposure machine (USHIO) ² was investigated. Developed in an aqueous solution diluted with 1% by weight of potassium hydroxide at 23 DEG C for 1 minute, then rinsed with pure water for 1 minute. The pattern of 3.0 .mu.m height obtained by this method was cured by heating in an oven at 220.degree. C. for 30 minutes, and then the shape of the pattern was visually observed with an electron microscope using an optical microscope. The results are shown in Table 2 and Figs. 3 to 5.

FIG. 3 is a scanning electron microscopic photograph evaluating the pattern forming property of the photosensitive resin composition according to Example 1. FIG. 4 is a scanning electron microscopic photograph evaluating the pattern forming property of the photosensitive resin composition according to Comparative Example 1, Is a scanning electron microscope photograph evaluating the pattern forming property of the photosensitive resin composition according to Comparative Example 2. Fig. 　

&Lt; Criteria of pattern formation property &

&Amp; cir &amp;: Very good pattern formation property as shown in FIG. 3

?: Good pattern formation property as shown in Fig. 4

?: As shown in Fig. 5,

3 to 5, it can be seen that the pattern of the photosensitive resin composition of Example 1 is well formed, whereas the pattern of the photosensitive resin composition of Comparative Example 2 is not well formed.

Evaluation 4: Fine line pattern Formability  evaluation

Using the photosensitive resin compositions of Example 2, Comparative Example 2 and Comparative Example 4 prepared using a black pigment dispersion, a pattern was formed under the same conditions as in the evaluation of the pattern formability, The results are shown in Table 2 and Figs. 6 to 8.

FIG. 6 is a scanning electron microscopic image obtained by evaluating the pattern size obtained from the photosensitive resin composition according to Example 2, FIG. 7 is an optical microscopic photograph evaluating the pattern size obtained from the photosensitive resin composition according to Comparative Example 2, The photomicrograph of the pattern size obtained from the photosensitive resin composition according to Comparative Example 4 was evaluated.

Referring to FIGS. 6 to 8, it can be seen that the minimum pattern size of Example 2 is 7 μm, while the minimum pattern size of Comparative Example 2 and 4 is 10 μm.

Developability Sleeping Pattern forming property Minimum pattern size (탆) Example 1 ○ ○ ◎ - Example 2 ○ ○ ◎ 7 Comparative Example 1 △ △ ○ - Comparative Example 2 △ △ △ 10 Comparative Example 3 ○ △ △ - Comparative Example 4 △ ○ ○ 10

Through the above Table 2, the photosensitive resin compositions of Examples 1 and 2, which were prepared using cado-based resins according to one embodiment, can be produced by using the cado-based resin having a different structure from the cadogy resin according to one embodiment It can be confirmed that the photosensitive resin composition of Comparative Examples 1 to 6 is superior in both developability, residue and pattern formability.

Evaluation 5: Evaluation of adhesion

Using the photosensitive resin composition prepared in Examples 1 and 2 and Comparative Examples 1 to 4, a glass substrate on which a pattern was formed under the same conditions as in the evaluation of the pattern formability was maintained at a temperature of 85 캜 and a humidity of 85% Placed in a chamber and allowed to stand for 5 hours, followed by washing with deionized water (DIW) and drying. The minimum pattern size remaining before and after the washing and drying using an optical microscope is shown in Table 3 below.

Minimum pattern size (탆) Before washing and drying After washing and drying Example 1 3 12 Example 2 7 16 Comparative Example 1 5 25 Comparative Example 2 10 38 Comparative Example 3 5 25 Comparative Example 4 10 42

Through the above Table 3, the photosensitive resin compositions of Examples 1 and 2 prepared using cado-based resin according to one embodiment can be produced by using a cado-based resin having a structure different from that of the cadogy resin according to one embodiment It can be confirmed that the size of the pattern after being torn out is smaller than that of the photosensitive resin compositions of Comparative Examples 1 to 4, and it can be seen from this that the adhesion is excellent.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. As will be understood by those skilled in the art. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

Claims (13)

(A) a cation resin including a repeating unit represented by the following formula (1) and a repeating unit represented by the following formula (2);
(B) a reactive unsaturated compound;
(C) a pigment;
(D) an initiator; And
(E) Solvent
.
[Chemical Formula 1]

(2)

(In the above formulas (1) and (2)
R ³ , R ⁴ , R ¹³ and R ¹⁴ are the same or different and each represents a hydrogen atom, a halogen atom, or a substituted or unsubstituted C 1 to C 20 alkyl group,
R ¹ , R ² , R ¹¹  And R ¹² are each a substituted or unsubstituted (meth) acrylate group,
R &lt; ⁵ &gt; is a silicon-
Z ¹ and Z ¹¹ are the same or different and are a single bond, O, CO, SO ₂ , CR ⁶ R ⁷ , SiR ⁸ R ⁹ (wherein R ⁶ to R ⁹ are the same or different from each other, A substituted or unsubstituted C1 to C20 alkyl group), or a linking group represented by any of the following formulas (4-1) to (4-6)
Z ² and Z ¹² are acid anhydride residues,
m ¹ , m ² , m ¹¹ and m ¹² are each an integer of 0 to 4, and n ¹ and n ¹¹ are each 1 to 30.)
[Formula 4-1]

[Formula 4-2]

[Formula 4-3]

[Formula 4-4]

[Formula 4-5]

(In the above Formula 4-5,
R ^a is a hydrogen atom, an ethyl group, C ₂ H ₄ Cl, C ₂ H ₄ OH, CH ₂ CH = CH ₂ , or a phenyl group.
[Formula 4-6]

The method according to claim 1,
Wherein R &lt; ⁵ &gt; in the above formula (2) comprises a substituent represented by the following formula (3).
(3)

(3)
X ¹ to X ³ are the same or different and are a substituted or unsubstituted C1 to C20 alkyl group,
X ⁴ represents a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C1 to C20 cycloalkylene group, a substituted or unsubstituted C6 to C30 arylene group, a C1 to C20 alkylamine group, an ether group, an ester group, A C1 to C20 alkylthiol group, or a C6 to C30 arylthiol group.
The method according to claim 1,
Wherein n ¹ in the repeating unit represented by the formula ( ¹⁾ and n ¹¹ in the repeating unit represented by the formula (2) have a molar ratio of 1:30 to 30: 1.
The method according to claim 1,
Wherein the cationic resin has a weight average molecular weight of 500 to 50,000 g / mol.
The method according to claim 1,
Wherein the cation resin comprises an end group represented by the following formula (5) in at least one of the two terminals.
[Chemical Formula 5]

(In the above formula (5)
And Z ³ is any one of the linking groups represented by the following formulas (6-1) to (6-7).)
[Formula 6-1]

(Wherein R ^b and R ^c are the same or different and each is a hydrogen atom, a substituted or unsubstituted C1 to C20 alkyl group, an ester group or an ether group).
[Formula 6-2]

[Formula 6-3]

[Formula 6-4]

[Formula 6-5]

Wherein R ^d is O, S, NH, a substituted or unsubstituted C1 to C20 alkylene group, a C1 to C20 alkylamine group, or a C2 to C20 allylamine group.
[Formula 6-6]

[Formula 6-7]

The method according to claim 1,
The photosensitive resin composition
(A) from 1 to 30% by weight of the cation resin;
(B) 1 to 30% by weight of the reactive unsaturated compound;
(C) 1 to 30% by weight of the pigment;
(D) 0.01 to 10% by weight of the initiator; And
(E) the solvent remaining amount
Wherein the photosensitive resin composition is a photosensitive resin composition.
The method according to claim 1,
Wherein the photosensitive resin composition further comprises an acrylic resin.
8. The method of claim 7,
Wherein the acrylic resin comprises a first ethylenic unsaturated monomer comprising (meth) acrylic acid, maleic acid, itaconic acid, fumaric acid or a combination thereof; Acrylates such as styrene,? -Methylstyrene, vinyltoluene, vinylbenzyl methyl ether, methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2- (Meth) acrylate, benzyl (meth) acrylate, cyclohexyl (meth) acrylate, phenyl (meth) acrylate, 2- (Meth) acrylonitrile, (meth) acrylamide, or a combination thereof, wherein the second ethylenically unsaturated monomer is selected from the group consisting of vinyl acetate, vinyl acetate, vinyl benzoate, glycidyl Sensitive resin composition.
8. The method of claim 7,
Wherein the acrylic resin has a weight average molecular weight of 3,000 to 40,000 g / mol.
8. The method of claim 7,
Wherein the cation resin and the acrylic resin are contained in a weight ratio of 99: 1 to 1:99.
The method according to claim 1,
Wherein the initiator comprises a photopolymerization initiator, a radical polymerization initiator, or a combination thereof.
The method according to claim 1,
Wherein the photosensitive resin composition further comprises 0.01 to 5 parts by weight of an epoxy compound per 100 parts by weight of the photosensitive resin composition.
A light-shielding layer produced by using the photosensitive resin composition of any one of claims 1 to 12.

Images