WO2013055150A2 - Photosensitive resin composition for color filter and color filter manufactured by using same - Google Patents

Abstract

The present invention relates to a photosensitive resin composition for a color filter and the color filter manufactured by using the same. A photosensitive resin composition for a color filter according to the present invention has, together with a pigment, a dye which has a specific spectral characteristic, and thus, the color filter manufactured by using said photosensitive resin composition enables a penetration ratio, brightness, contrast, and color purity to be superior, and also shows an improved heat-resistant characteristic.

Description

 【Specification】

 [Name of invention]

 Photosensitive resin composition for color filters and color filter manufactured using the same

 The present invention relates to a photosensitive resin composition for color filters and a color filter manufactured using the same.

 Background Art

 Color filters are used in liquid crystal displays, organic light emitting devices, optical filters of cameras and the like, and are generally manufactured by methods such as dyeing, printing, electrodeposition, pigment dispersion, and the like.

 Among them, the pigment dispersion method is the most common method of dispersing the pigment in a composition having photosensitivity in the wavelength region 200 ~ 400 nm to produce a color filter by a photolithography method.

 The pigment dispersion method is stable in light, heat, etc. by using the pigment, it is possible to manufacture a color filter in a relatively simple process. It is also possible to adjust the brightness and contrast by lowering the particle size of the pigment and adjusting the dispersion.

 However, in the pigment dispersion method, when the content of the pigment is increased to improve the color purity, the luminance and contrast are inevitably lowered. This phenomenon has reached a limit that cannot be solved only by adjusting the particle size of the pigment. .

 Accordingly, as a method for overcoming the limitation of the pigment dispersion method, a method of using a dye instead of a pigment has been proposed.

 However, since the dye is basically poor solubility in a solvent, there is a limit to the amount available. Accordingly, various methods for increasing the dye content have been proposed, such as improving the solubility of the dye. However, if the dye content is high, there are still problems such as precipitation of the dye after baking or decrease in light transmittance due to deterioration of heat resistance. It is true.

 [Content of invention]

[Problem to solve]. Accordingly, the present invention is to provide a photosensitive resin composition capable of producing a color filter having excellent light transmittance, brightness, contrast, and color purity while showing improved heat resistance.

 In addition, the present invention is to provide a color filter produced using the composition.

 [Measures of problem]

 According to one embodiment of the present invention, a binder resin; Reactive unsaturated compounds; Blue pigments; A dye having a spectral characteristic of 90% or more of light transmittance in a wavelength region of 430 465 nm and 55% or less of light transmittance in a wavelength region of 495 to 505 nm; Polymerization initiator; And the photosensitive resin composition for color filters containing a solvent is provided. In addition, according to another embodiment of the present invention, a binder resin; Reactive unsaturated compounds; Green pigments; A dye having a spectral property of 95% or more in a wavelength range of 530 to 540 nm and a light transmittance of 55% or less in a wavelength range of 580 to 590 nm; Polymerization initiator; And the photosensitive resin composition for color filters containing a solvent is provided. In the composition according to the embodiments, the dye may be a compound represented by the following formula (1):

[Formula 1]

In Chemical Formula 1,

 M is Cu, Co, A1, Zn, Ni, Pt or Cr;

 N is nitrogen;

R ¹ to R ¹⁶ are each independently a hydrogen atom, a halogen atom, a carboxyl group, a hydroxy group, a sulfonic acid alkyl group substituted with a sulfonic acid group, a heterocyclic group, a sulfonic acid hydroxyl group a sulfonic acid alkoxy group, an aryl sulfonic acid group, an alkyl group having 1 to 20 carbon atoms, and 3 to C carbon atoms. 20 cycloalkyl group, a heterocyclic group having ₆ to ₂₀ aryl group, having 1 to 20 carbon atoms,

It is a 3-20 heterocycloalkyl group, or a C3-C20 heteroaryl group.

 Preferably, the dye may be a compound represented by the following formula (2):

[Formula 2]

 In Chemical Formula 2,

 M is Cu, Co, Al, Zn, Ni, Pt or Cr; .

 N is nitrogen;

 O is oxygen;

R ^a to R ^h are each independently an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, a heteroalkyl group having 1 to 20 carbon atoms, a heterocycloalkyl group having 3 to 20 carbon atoms, Or a heteroaryl group having 3 to 20 carbon atoms.

 Also preferably, the dye having a spectral characteristic having a light transmittance of 90% or more in the wavelength range of 430 to 465 nm and a light transmittance of 55% or less in the wavelength range of 495 to 505 nm may include Octa (2-ethyl exyloxy) Cu Phthalocyanine, Octa ( 2-ethylhexyloxy) Co Phthalocyanine, Octa (2-ethylhexyloxy) Al Phthalocyanine, Octa (2-ethylhexyloxy) Zn Phthalocyanine, Octa (2-ethylhexyloxy) Ni Phthalocyanine, Octa (2-ethylhexyloxy) Pt Phthalocyanine, and Octa (2-ethylhexyloxy) It may be one or more compounds selected from the group consisting of Cr Phthalocyanine.

In addition, preferably, the light transmittance of 95% or more in the wavelength region 530 540 nm, and has a spectral characteristic of 55% or less transmittance in the wavelength region 580 ~ 590 nm. The dye is Octa (1, 4,7, 10-tetraoxaundecyl) Cu Phthalocyanine,

Octa (l, 4,7, 10-tetraoxaundecyl) Co Phthalocyanine, Octa (1, 4,7, 10-tetraoxaundecyl) Al Phthalocyanine, Octa (1, 4,7, 10-tetraoxaundecyl) Zn Phthalocyanine,

Octa (1, 4,7, 10-tetraoxaundecyl) Ni Phthalocyanine, Octa (l, 4,7, 10-tetraoxaundecyl) Pt Phthalocyanine, and Octa (l, 4,7,10-tetraoxaundecyl) Cr Phthalocyanine It may be one or more compounds. On the other hand, the photosensitive resin composition for color filters according to the embodiments is based on 100 parts by weight of the binder resin,

 100 to 250 parts by weight of the reactive unsaturated compound;

 5 to 150 parts by weight of the pigment;

 50 to 250 parts by weight of the dye;

 5 to 50 parts by weight of the polymerization initiator; And

 100 to 500 parts by weight of the solvent

 It may include.

 Here, the binder resin is one selected from the group consisting of (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid, vinyl acetic acid, 2-acryloxyethyl hydrogen phthalate, and 2-acryloxypropyl hydrogen phthalate. 10 to 40% by weight of the monomer having an ethylene-based acidic group and isobutyl (meth) acrylate, tert-butyl (meth) acrylate lauryl (meth) acrylate, ste (meth) arylacrylate cyclonuclear (meth) Acrylate, isobornyl (meth) acrylate benzyl (meth) acrylate, 2-hydroxy alkyl (meth) acrylate trimethoxybutyl (meth) acrylate, ethylcarbyyl (meth) acrylate phenoxy (Meth) acrylate, 4-hydric butyl (meth) acrylate phenoxy ethylene glycol (meth) acrylate 2-hydroxythoxy (meth) acrylate

2-hydroxypropyl (meth) acrylate,

 2-acryloxyethyl 2-hydroxythoxypropyl (meth) phthalate,

 2-hydroxy-3-phenoxypropyl (meth) acrylate, triethyl siloxane

Consisting of (meth) acrylate and ethyltriglycol (meth) acrylate 60 to 90% by weight of one or more (meth) acrylate monomers selected from the group may be a polymerized copolymer.

In addition, the reactive unsaturated compounds are ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, ^■ triethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, 1,4- Butanedi di (meth) acrylate, 1,6-nucleodiol diol (meth) acrylate, neopentyl glycol di (meth) acrylate, pentaerythri di (meth) acrylate, pentaerythritol Meth) acrylate, pentaerythrith tetra (meth) acrylate, pentaerythrith penta (meth) acrylate, pentaerythritic nucleus (meth) acrylate, dipentaerythri di (meth) acrylic Laterate, dipentaerythrone, tri (meth) acrylate, dipentaeryestrile, tetra (meth) acrylate, dipentaerythri, penta (meth) acrylate, dipentaeryesri Nucleated (meth) acrylate, bisphenol A di (meth) acrylate, trimethyl to propane tri (meth) acrylate, novolac epoxy (meth) acrylate, dipentaeta listlet penta (meth) acryl having a carboxyl group Ethylene Oxide, Glycerine Trimethylol Propane Tri (meth) acrylate, Propylene Oxide Glycerine Tri (meth) acrylate, Epoxy

It may be at least one compound selected from the group consisting of (meth) acrylate oligomer, urethane (meth) acrylate oligomer, tee (meth) acrylate oligomer, and polyester (meth) acrylate oligomer.

 On the other hand, according to another embodiment of the present invention, there is provided a color filter manufactured using the photosensitive resin composition.

 【Effects of the Invention】

 Since the photosensitive resin composition for a color filter according to the present invention includes a dye having a specific spectral characteristic together with a pigment, the color filter manufactured by using the same is not only excellent in light transmittance, brightness, contrast, and color purity, but also improved heat resistance characteristics. There is an advantage to indicate.

 [Brief Description of Drawings]

Figures la-lb and Figures 2a-2b are to be added to a composition according to embodiments of the invention It is a graph showing the spectral characteristics for the pigments and dyes that can be.

 3 and 4 are graphs showing the spectral characteristics of the color filters prepared using the compositions according to the Examples and Comparative Examples of the present invention.

 5A to 5B are enlarged photographs of an appearance of a color filter manufactured using a composition according to embodiments of the present invention.

 [Specific contents to carry out invention]

 Hereinafter, a photosensitive resin composition for color filters and color filters manufactured using the same according to embodiments of the present invention will be described.

 Prior to this, some terms are defined as follows unless explicitly stated in the present specification and claims.

 First, '(meth) acrylic acid' is defined as collectively referred to as acrylic acid and / or methacrylic acid.

 In addition, "(meth) acrylate" is defined as collectively referred to as acrylate (acrylate) and / or methacrylate (methacrylate).

 In addition, the "alkyl group" includes an alkyl group having 1 to 20 carbon atoms;

"Cycloalkyl group" includes a cycloalkyl group having 3 to 20 carbon atoms; "Aryl group" includes an aryl group having 6 to 20 carbon atoms; "Heteroalkyl group" includes a heteroalkyl group having 1 to 20 carbon atoms; "Heterocycloalkyl group" includes a heterocycloalkyl group having 3 to 20 carbon atoms; "Heteroaryl group" is defined to include a heteroaryl group having 3 to 20 carbon atoms. Here, "hetero" is defined as meaning that at least one carbon atom is substituted with an atom selected from the group consisting of O, S, N, P, Si or a combination thereof. On the other hand, the present inventors in the process of studying the photosensitive resin composition for a color filter, when using a dye having a specific spectral characteristics in combination with the pigment color exhibits excellent light transmittance, brightness, contrast, and color purity while showing improved heat resistance characteristics It was confirmed that the filter can be produced, to complete the present invention.

According to one embodiment of the present invention, a binder resin; Reactive unsaturated compounds; Blue pigments; Wavelength range. 90% light transmittance at 430-465 nm Dyes having a spectral property of 55% or less of a light transmittance in a wavelength range of 495 to 505 nm; Polymerization initiator; And the photosensitive resin composition for color filters containing a solvent is provided.

 Further, according to another embodiment of the present invention, a binder resin; Semi-aromatic unsaturated compounds; Green pigments; A dye having a spectral property of 95% or more of a light transmittance in a wavelength region of 530 540 nm and a light transmittance of 55% or less in a wavelength range of 580 to 590 nm; Polymerization initiator; And the photosensitive resin composition for color filters containing a solvent is provided. Hereinafter, each component that may be included in the photosensitive resin composition for color filters according to embodiments of the present invention will be described. Binder resin

 The binder resin is a component that ensures dispersion stability of pigments, dyes, and the like, which will be described later, and forms pixels of a desired resolution during development.

 Since the binder resin may be selected from binder resins generally used in the resin composition for color filters in the art, the configuration thereof is not particularly limited.

 However, according to one embodiment of the present invention, the binder resin may be a copolymer in which a monomer having at least one ethylenic acid group and at least one (meth) acrylate monomer are polymerized.

At this time, as the binder resin is a butyl-series monomer and 10 to 40% by weight of (meth) acrylate-based monomer 60 to 90 weight _^0/0, preferably a monomer 20 to 40% by weight having an ethylenic acid having an acidic group in 60 to 80 wt% of the (meth) acrylate monomer, more preferably 25 to 35 wt% of the monomer having an ethylene acid group and 65 to 75 wt% of the (meth) acrylate monomer may be a copolymer.

That is, the binder. When the content of the monomer having an ethylene-based acid group included in the resin is less than 10% by weight, solubility of the photosensitive resin composition in an alkaline developer may be lowered. And, when the content of the monomer having an ethylene-based acid group contained in the binder resin exceeds 40% by weight in the alkaline developer During the development, the dropout and tearing of the pattern may occur. In addition, when the content of the (meth) acrylate-based monomers included in the binder resin is less than 60% by weight, adhesion to the substrate is degraded during the development process, so the pattern tearing phenomenon is severe and the straightness of the formed pattern is deteriorated. In addition, when the content of the (meth) acrylate-based monomers included in the binder resin exceeds 90% by weight, the time required for development may be increased, thereby decreasing productivity.

 Here, the monomer having an ethylenic acid group may be (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid, vinyl acetic acid,

At least one compound selected from the group consisting of 2-acrylooxyethylhydrogenphthalate, and 2-acrylooxypropylhydrogenphthalate.

 In addition, the (meth) acrylate monomer is isobutyl (meth) acrylate, tert-butyl (meth) acrylate ^ lauryl (meth) acrylate, ste (meth) aryl acrylate cyclonuclear (meth) acryl Isobornyl (meth) acrylate benzyl (meth) acrylate, 2-hydroxy alkyl (meth) acrylate trimethoxybutyl (meth) acrylate, ethylcarbyl (meth) acrylate phenoxy ( Meth) acrylate, 4-hydroxybutyl (meth) acrylate phenoxy thylene glycol (meth) acrylate 2-hydroxyethyl (meth) acrylate _e 2-hydroxypropyl (meth) acrylate,

2-acryloxyethyl 2-hydroxypropyl (meth) phthalate,

 2-hydroxy-3-phenoxypropyl (meth) acrylate, triethylsiloxane ethyl

It may be at least one compound selected from the group consisting of (meth) acrylate, and ethyltriglycol (meth) acrylate.

 In addition, the binder resin preferably has an increased average molecular weight (Mw) of 5,000 to 50,000 in consideration of adhesion to a substrate, dispersion stability of additional components, and the like.

Such binder resin may be included in 5 to 15% by weight based on the total weight of the composition. That is, in order to express the minimum dispersion stability, film strength, heat resistance, etc. according to the addition of the binder resin, The binder resin is preferably contained in 5% by weight or more. In addition, there when using the binder resin in an excessive ^amount, the viscosity is increased more than necessary optical properties, physical properties and process performance of the composition of the composition may decrease, to prevent these phenomena, the binder resin is 15 It is preferably included in the wt% or less. Reactive unsaturated compounds

On the other hand, the photosensitive resin composition for color filters which concerns on this invention contains a reactive unsaturated compound. The semi-aromatic unsaturated compound is a component for imparting viscosity to the composition and securing the film strength together with the above-described binder resin. In particular, according to the present invention, the reactive unsaturated compound may be selected from the group consisting of a thermopolymerizable or photopolymerizable monomer, a thermopolymerizable or photopolymerizable oligomer and two or more combinations thereof. Wherein the thermopolymerizable or photopolymerizable monomer is ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-nucleic acid di (meth) acrylate, neopentylglycol di (meth) acrylate, pentaerythri di (meth) acrylate, pentaeryth Lithyl tri (meth) acrylate, pentaerythriol tetra (meth) acrylate, pentaerythrith penta (meth) acrylate, pentaerythrith nucleus (meth) acrylate, dipentaerythri (Meth) acrylate, dipenta to tris (meth) acrylate, dipentaerythr to tetra (meth) acrylate, dipenta to lispenta (meth) acrylate, dipenta Styrene nucleated (meth) acrylate, bisphenol A di (meth) acrylate, trimethyl-propane tri (meth) acrylate, novolac epoxy (meth) acrylate, or penta (s) of penta (s) having a carboxyl group ) Acrylate derivative, ethylene oxide glycerol tri methylol propane tri (meth) acrylate, and propylene oxide glycerol tri (meth) acrylate may be at least one compound selected from the group consisting of. Further, the thermally polymerizable or photopolymerizable oligomer is an epoxy (meth) acrylate oligomer, urethane ^' (meth) acrylate oligomer, thi (meth) acrylate oligomer, and polyester (meth) acrylate oligomer It may be one or more oligomers selected from the group consisting of mer.

Here, the content of the reactive unsaturated compound may be 100 to 250 parts by weight, preferably 150 to 250 parts by weight, more preferably ₁₅₀ to ₂₀₀ parts by weight based on 100 parts by weight of the binder resin. In other words,. In order to prevent a hardening of the pattern due to low curing degree of the photosensitive resin, the reactive unsaturated compound is preferably included 100 parts by weight or more based on 100 parts by weight of the binder resin. In addition, when the excess amount of the reactive unsaturated compound is added, the degree of curing of the composition becomes higher than necessary, thereby causing a severe tearing of the pattern during development, and the linearity of the pattern may be lowered. It is preferably included in less than 250 parts by weight based on 100 parts by weight of the binder water. Pigment

 On the other hand, the photosensitive resin composition for color filters which concerns on this invention contains a pigment.

 The pigment may be selected from blue or green pigments generally used in the color resin composition for color filters in the art.

 The blue pigment may be a copper phthalocyanine-based blue pigment, preferably a compound classified as a pigment in the color index, CI blue pigment (Color Index Pigment Blue) 15, 15: 3, 15: 4, 15: 6, 60, etc. are mentioned. In addition, the green pigment may be a halogenated phthalocyanine-based green pigment, preferably a compound classified as a pigment in the color index, it may be C.L green pigment (Color Index Pigment Green) 7, 36, 58 and the like.

Such pigments may be added directly to the composition according to the present invention as a pigment itself, or in the form of a pigment dispersion including a dispersant or a solvent. In this case, as the dispersant which may be included in the pigment dispersion, a nonionic dispersant, an ionic dispersant or a cationic dispersant may be selectively used, and specific examples thereof include polyalkylene glycol and esters thereof; Polyoxy alkylenes; Polyhydric alcohol ester alkylene oxide adduct; Alcohol alkylene oxide adducts; Alkylamines and the like can be used alone or in appropriate combinations. The dispersant may be included in an amount of 10 to 20 parts by weight based on 100 parts by weight of the pigment.

 In addition, solvents that may be included in the pigment dispersion composition include ethylene glycol acetate, ethyl cellosolve, propylene glycol methyl ether acetate, ethyl lactate, polyethylene glycol, cyclonucleanone, propylene glycol methyl ether, and the like. Can be used. At this time, the content of the solvent is preferably adjusted so that the solid content of the pigment dispersion is 5 to 30% by weight.

 On the other hand, the particle size of the pigment may be determined in consideration of dispersion stability and pixel resolution, and may preferably be a number average particle size of 30 to 200 nm.

 The content of the pigment may be 50 to 150 parts by weight, preferably 75 to 150 parts by weight, and more preferably 75 to 125 parts by weight based on 100 parts by weight of the binder resin. That is, in consideration of color reproducibility, pattern shape, adhesion, curing properties, etc. according to the use of the pigment, the pigment is preferably included in the above-described range. dyes

 On the other hand, the photosensitive resin composition for color filters which concerns on this invention contains a dye.

In other words, the composition according to the invention comprises said dye (auxiliary dye) together with the aforementioned pigment (primary pigment). According to the present invention, the dye has inherent spectral characteristics in a specific wavelength range, and the light transmittance and the light transmission width of the color filter formed by the composition are adjusted by synergism with the pigment showing a specific color, thereby improving color purity. In addition, brightness and contrast To improve.

 Particularly, according to an embodiment of the present invention, when the pigment is a blue pigment, the dye represented by Chemical Formula 1 may have a light transmittance of 90% or more, preferably 90-99%, in the wavelength region of 430-465 nm, More preferably 93 to 99%; In the wavelength region 495-505 nm, the light transmittance may be a compound having a spectral characteristic of 55% or less, preferably 45 to 55%, more preferably 45 to 50%.

 Further, according to another embodiment of the present invention, when the pigment is a green pigment, the dye represented by the formula (1) is 95% or more, preferably 95-99% light transmittance in the wavelength range of 530 ~ 540 nm ; In the wavelength region 580 ~ 590 nm, the light transmittance may be a compound having a spectral characteristic of 55% or less, preferably 45 to 55%, more preferably 45 to 50%.

 Here, the pigment having the above spectral characteristics may be a compound represented by the following formula (1):

 [Formula 1]

 In Chemical Formula 1,

M is Cu, Co, Al, Zn, Ni, Pt or Cr; N is nitrogen;

R ¹ to R ¹⁶ each independently represent a hydrogen atom, a halogen atom, a carboxyl group, a hydroxy group, a sulfonic acid alkyl group substituted with a sulfonic acid group, a heterocyclic group, a sulfonic acid hydroxy group sulfonic acid alkoxy group, an sulfonic acid aryl group, an alkyl group having 1 to 20 carbon atoms, and a carbon number of 3 to 20 cycloalkyl group, a heteroaryl group having from 6 to 20 carbon atoms in the aryl group, a heteroaryl group having 1 to 20 carbon atoms, hetero cycloalkyl having 3 to 20 carbon atoms, or having from 3 _^ 20.

 Preferably, the pigment having the spectral characteristics may be a compound represented by the following formula (2):

 [Formula 2]

In Chemical Formula 2,

 M is Cu, Co, Al, Zn, Ni, Pt or Cr;

 N is nitrogen;

 O is oxygen;

R ^a to R ^h are each independently an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, a heteroalkyl group having 1 to 20 carbon atoms, a heterocycloalkyl group having 3 to 20 carbon atoms, or It is a C3-C20 heteroaryl group. At this time, the compound represented by the formula (1) or (2) may appear differently in blue or green color depending on the structure of the R ¹ to R ¹⁰ or R ^a to R ^h and the length of the substituent.

 Particularly, according to an embodiment of the present invention, the blue dye satisfying the spectral characteristics may include Octa (2-ethylhexyloxy) Cu Phthalocyanine, Octa (2-ethylhexyloxy) Co Phthalocyanine, Octa (2-ethylhexyloxy) Al Phthalocyanine, Octa ( 2-ethylhexyloxy) Zn Phthalocyanine, Octa (2-ethylhexyloxy) Ni Phthalocyanine, Octa (2-ethylhexyloxy) Pt Phthalocyanine, and Octa (2-ethylhexyloxy) Cr Phthalocyanine, but may be one or more compounds selected from the group consisting of Blue dyes are not limited to these compounds.

 In addition, according to an embodiment of the present invention, the green dye satisfying the spectral characteristics are Octa (1,4,7, 10-tetraoxaundecyl) Cu Phthalocyanine,

Octa (l, 4,7,10-tetraoxaundecyl) Co Phthalocyanine, Octa (l, 4,7,10-tetraoxaundecyl) Al Phthalocyanine, Octa (1,4,7,10-tetraoxaundecyl) Zn Phthalocyanine, Octa (l, 4 1,4,7,10-tetraoxaundecyl) Ni Phthalocyanine, Octa (l, 4,7, 10-tetraoxaundecyl) Pt Phthalocyanine, and Octa (l, 4,7, l 0-tetraoxaundecyl) Cr Phthalocyanine It may be a compound, but the green dye is not limited to these compounds.

The amount of the dye may be 50 to 250 parts by weight, preferably 100 to 250 parts by weight, and more preferably 100 to 200 parts by weight based on 100 parts by weight of the binder resin. That is, to refer upon expression of the ^addition, other spectral characteristics of the raised minimum effect depending on the dye, the dye preferably contains at least 50 parts by weight per 100 parts by weight of the binder resin. In addition, when the dye is used in excess, problems such as precipitation of the dye after baking or poor heat resistance may occur. In order to prevent such a phenomenon, the dye may be 200 parts by weight based on 100 parts by weight of the binder resin. It is preferable to be contained below. Polymerization initiator

On the other hand, the photosensitive resin composition for color filters according to the present invention is polymerized It includes an initiator. The polymerization initiator is a component for inducing polymerization of the above-mentioned semi-aromatic unsaturated compounds by heat or light and the like, and may be selected and used conventionally in the art.

 However, according to one embodiment of the present invention, the polymerization initiator is a group consisting of acetophenone compounds, benzophenone compounds, thioxanthone compounds, benzoin compounds, triazine compounds, oxime compounds and mixtures thereof It may be selected from.

 Specifically, the polymerization initiator is 2,2'- diethoxyacetophenone, 2,2'-dibutoxyacetophenone, (2-hydroxy-2-methyl acetyl) phenyl kehon, pt-butyltrichloroacetophenone pt-butyldichloroacetophenone,

4-chloroacetophenone, 2,2'-dichloro-4-phenoxy acetophenone,

Acetophenone compounds including 2-methyl-1- (4- (methylthio) phenyl) -2-morpholinopropane-1-one and the like; Benzophenone, benzoyl benzoic acid, methyl benzoyl benzoate, 4-phenyl benzophenone, hydroxy benzophenone, acrylated benzophenone, 4,4'-bis (dimethyl amino) benzophenone, 4,4'-bis (diethylamino Benzophenone compounds including benzophenone, 4,4'-dichlorobenzophenone, 3,3'-dimethyl-2-methoxy benzophenone and the like; Thioxanthone, 2-Chrol Thioxanthone, 2-Methyl Thioxanthone, Isopropyl Thioxanthone, 2,4-Diethyl Thioxanthone, 2,4-Diisopropyl Thioxanthone, 2-Chlorothione Thioxanthone type compounds containing oxaanthone etc .; Benzoin compounds including benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzyl dimethyl ketal and the like; 2,4,6-trichloro-S-triazine,

2-phenyl-4,6-bis (trichloromethyl) -S-triazine, 2- (3 ', 4'-dimethoxy styryl) _4,6-bis (trichloromethyl) -S-triazine , 2- (4'-methoxy naphthyl) -4,6-bis (trichloromethyl) -S-triazine, 2- (p-methoxy phenyl) -4,6-bis (trichloromethyl)- S-triazine,

2- (p-lryl) -4,6-bis (trichloromethyl) -S-triazine, 2-pipeen-4,6-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) _4 ， 6-Bis (trichloromethyl) -S-triazine, 2,4-trichloromethyl (piperonyl) -6-triazine, 2,4-trichloromethyl (4'-methoxy styryl)- 6-triazine Triazine-based compounds including such compounds;

1,2-octadione-1- (4-phenylthio) phenol-2- (o-benzoyloxime) and ethanone-1- (9-ethyl) -6- (2-methylbenzoyl-3-yl)- oxime-based compounds including l- (o-acetyloxime) and the like and combinations thereof.

 In addition, a carbazole compound, a diketone compound, a sulfonium borate compound, a diazo compound, a biimidazole compound, or the like may be used as the polymerization initiator.

 The content of the polymerization initiator can be determined in consideration of the phenomenon of decrease in transmittance due to the unreacted initiator after the polymerization reaction, while also causing the polymerization reaction sufficiently. According to the present invention, the content of the polymerization initiator may be 5 to 50 parts by weight, preferably 10 to 50 parts by weight, and more preferably 10 to 40 parts by weight based on 100 parts by weight of the binder resin. solvent

 On the other hand, the photosensitive resin composition for color filters which concerns on this invention contains a solvent.

 The solvent is a component added to adjust the solubility and viscosity of the components included in the composition, and as long as the solvent is compatible with the above components without showing reaction properties, it is limited to those conventional in the art. Can be used without

According to an embodiment of the present invention, the solvent is an alcohol such as methane, ethanol, isopropyl alcohol, butyl alcohol, benzyl alcohol diacetone alcohol; Ethers such as dichloroethyl ether, n-butyl ether, disoamyl ether, methylphenyl ether and tetrahydrofuran; Glycol ethers such as ethylene glycol monomethyl ether and ethylene glycol monoethyl ether; Cellosolve acetates such as methyl cellosolve acetate, ethyl cellosolve acetate and diethyl cellosolve acetate; Methylethyl Carbi, Diethyl Carbi, Diethylene Glycol Monomethyl Ether, Diethylene Glycol Monoethyl Ether, Diethylene Glycol ^' Dimethyl Ether, Diethylene Glycol Methylethyl Ether, Diethylene Carbyls such as glycol diethyl ether; Propylene glycol methyl ethyl acetate, 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; Methyl ethyl ketone, cyclonucleanone,

Ketones such as 4-hydroxy-4-methyl-2-pentanone, methyl -n-propyl ketone, methyl -n-butylkenone, methyl -n-amyl ketone and 2-heptanone; Saturated aliphatic monocarboxylic acid alkyl esters such as ethyl acetate, -n-butyl acetate and isobutyl acetate; Lactic acid esters such as methyl lactate and ethyl lactate; Oxy acetic acid alkyl esters such as methyl oxy acetate, oxy ethyl acetate and butyl oxy acetate; Alkoxy acetate alkyl esters such as methoxy methyl acetate, methoxy ethyl acetate, methoxy butyl acetate, especial methyl acetate and especial ethyl acetate; 3-oxy propionic acid alkyl esters such as methyl 3-oxy propionate and ethyl 3-oxypropionate; 3 'alkoxy propionic acid alkyl esters such as 3-methoxy methyl propionate, 3' methoxy propionic acid ethyl, 3-ethoxy ethyl propionate and 3-ethoxy methyl propionate; 2-oxy propionic acid alkyl esters such as 2-oxy methyl propionate, 2-oxy ethyl propionate and 2-oxy propionic acid propyl; 2-alkoxy propionic acid alkyl esters such as 2-methoxy methyl propionate, 2-methoxy propionic acid ethyl, 2-ethoxy ethyl propionate and 2-ethoxy methyl propionate; 2-methyl-2-methyl propionate, 2-oxy-2-methylpropionic acid ₂ _ oxy _2- peuropieun acid methyl esters, such as ethyl and the like; Mono-oxy mono carboxylic acid alkyl esters, 2-methoxy-2-methyl-propionamide methyl ^, _ ₂ _ ₂ _ eteuk when 2-alkoxy-2-methyl, such as methyl propionate, butyl propionate, alkyl and the like; 2-hydroxy propionic acid ethyl; . Esters such as 2-hydroxy-2-methyl propionic acid ethyl, hydroxyethyl acetate, methyl 2-hydroxy-3-methyl butanoate; Ketone acid esters such as pyruvic acid ethyl; Or a combination thereof.

In addition, the solvent is N-methylformamide, Ν, Ν-dimethylformamide, Ν-methylformanilide, Ν-methylacetamide, Ν, Ν-dimethylacetamide, Ν-methylpyrrolidone, di Methyl sulfoxide, benzyl ethyl ether, dinuclear ether, acetyl acetone, isophorone, capric acid, caprylic acid, 1-octanol, 1-nonane, benzyl alcohol, benzyl acetate, benzoic acid ethyl, oxalic acid di Ethyl, Diethyl Maleate, Gamma-Butyrolactone, Ethylene Carbonate, Propylene Carbonate, Phenyl Cellosolve Acetate, Ethylene Glycol Acetate, Ethyl Cellosolve, Ethyl Lactate, Polyethylene Glycol And the like.

 Preferably, in view of compatibility and reactivity, glycol ethers such as ethylene glycol monoethyl ether in the solvent; Cellosolve acetates such as ethyl cellosolve acetate; Esters such as 2-hydroxy propionic acid ethyl; Carbyls such as diethylene glycol monomethyl ether; Propylene glycol alkyl ether acetates such as propylene glycol methyl ether acetate and propylene glycol propyl ether acetate; Ethylene glycol acetate, ethyl cellosolve, ethyl lactate, polyethylene glycol or a combination thereof can be used.

 The content of the solvent may be determined in consideration of the viscosity of the composition, the coating properties and the volatilization characteristics of the solvent. According to the present invention, the solvent content may be 100 to 500 parts by weight, preferably 150 to 450 parts by weight, more preferably 200 to 400 parts by weight based on 100 parts by weight of the binder resin.

 ᅳ

 Other additives

 On the other hand, the photosensitive resin composition for color filters according to the present invention may further include other additives commonly used in the art, in addition to the aforementioned components.

 The additive may be a component mainly for improving the storage stability of the composition or a component for improving the coating property and adhesion, and the like. According to the present invention, the additive may be an epoxy compound, malonic acid, 3-amino-1,2-propanedi, a silane coupling agent, a silicone-based or fluorine-based leveling agent, a surfactant, or the like. And, the content of these additives can be determined according to the physical properties to be adjusted within a range that does not adversely affect the physical properties of the composition, it is not particularly limited. On the other hand, according to another embodiment, the present invention provides a color filter manufactured using the photosensitive resin composition described above.

The color filter is a photosensitive resin composition according to the invention Except for use, it may be prepared by conventional methods in the art. According to an embodiment of the present invention, the color filter is coated on the predetermined substrate with a thickness of 1 to 5 by a method such as spin coating or slit coating, the predetermined pattern is formed here After irradiating the light, it may be prepared by treating it with a developer and forming a necessary pattern by performing a baking process as necessary. Hereinafter, preferred embodiments of the present invention are presented to aid in understanding the present invention. However, the following examples are only for illustrating the present invention, and the present invention is not limited thereto.

 [Production example]

 Preparation Example 1

 (Manufacture of Binder Resin)

Monomer compound comprising a methacrylic acid 33 parts by weight _^0/0, benzyl methacrylate 40 parts by weight _^0/0, ethyl triglycol methacrylate Π weight _^0/0, and 2-hydroxyethyl methacrylate 16 parts by weight _^0/0 To 100 parts by weight, 4 parts by weight of a polymerization initiator (azobisisobutyronitrile) and 55 parts by weight of a solvent (propylene glycol monoethyl ether) were mixed and polymerized to prepare a polymer resin having a weight average molecular weight of 30,000. . Preparation Example 2-1

 (Synthesis of Blue Dye: Octa (2-ethylhexyloxy) Cu Phthalocyanine)

 About 12.8 g of l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene and about 7.0 g of copper cyanide were added to Dimethylformamide (about 130 ml), which was stirred at room temperature for about 5 hours under a nitrogen atmosphere. After that, the solvent was removed under reduced pressure to obtain l, 2-Di (2-ethylhexyloxy) -4,5-dibromobenzene.

 Subsequently, the l, 2-Di (2-ethylhexyk) xy) -4,5-dibromobenzene (about 2 g), NH 3 (about 2 g) and Na (about 0.34 g) are added to a methanol (about 34 ml) solvent. Then, the mixture was stirred at room temperature for about 5 hours to obtain l, 3-Diimino-5,6-di (2-ethylhexyloxy) isomdole.

L, 3-Diomino- ⁵ , ^6- di ( ^2- ethy exyloxy) isoinclole (about 1.19 g) and Cu (about 0.2 g) was mixed and reacted for about 96 hours at a temperature of about 270 ^° C. to obtain Octa (2-ethylhexyloxy) Cu Phthalocyanine. Preparation Example 2-2

(Synthesis of blue dye: Octa ( ² -ethylhexyloxy) Co Phthalocyanine)

 About 12.8 g of l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene and about 7.0 g of copper cyanide were added to Dimethylformamide (about 130 ml), which was stirred at room temperature for about 5 hours under a nitrogen atmosphere. Then, the solvent was removed under reduced pressure to obtain l, 2-Di (2-ethylhexyloxy) -4,5-dibromobenz¾neol.

 Subsequently, the l, 2-Di (2-ethylhexyloxy) -4,5-dibromobenzene (about 2 g), NH3 (about

2 g) and Na (about 0.34 g) were added to methanol (about 34 ml) solvent and stirred at room temperature for about 5 hours to afford l, 3-Diimino-5,6-di (2-ethylhexyloxy) isoindole. .

The l, ^3- diimmo-5, ^6- di (2-ethylhexyloxy) isoindole (about 2 g) and Hydroquinone (about 0.215 g) were mixed and reacted for about 48 hours at a temperature of about 210 ^° C. ethylhexyloxy) Dihydrogen Phthalocyanine was obtained.

Then, Octa (2-ethylhexyloxy) Dihydrogen Phthalocyanine (about 1.0 g) and CoCl ₂ (about 0.363 g) were mixed and reacted at room temperature for about 24 hours to obtain Octa (2-ethylhexyloxy) Co Phthalocyanine. Preparation Example 2-3

 (Synthesis of Blue Dye: OctaOethylhexyloxy) Pt Phthalocyanine)

 About 12.8 g of l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene and about 7.0 g of copper cyanide were added to Dimethylformamide (about 130 ml), which was stirred at room temperature for about 5 hours under a nitrogen atmosphere. After that, the solvent was removed under reduced pressure to obtain l, 2-Di (2-ethylhexyloxy) -4,5-dibromobenzene.

Is on, the l, 2-Di (2- ethylhexyloxy) - was added to ^4, 5-dibromobenzene (about 2 g), N¾ (about 2 g) and Na (approximately 0.34 g) in methanol (about 34 ml) solvent ， Stirring at room temperature for about 5 hours to obtain l, 3-Diimino-5,6-di (2-ethylhexyloxy) isoindole.

L, ^3- Diimino- ⁵ , ^6- di ( ^2- ethylhexyloxy) isoindole (about 1.5 g) and PtCl ₂ (about 0.31 1 g) were mixed and reacted for about 48 hours at a temperature of about 270 ^° C. Octa (2-ethylhexyloxy) Pt Phthalocyanine was obtained. Preparation Example 2-4

 (Synthesis of blue dye: Octa (2-ethyIhexyloxy) DihydiOgen Phthalocyanine) about 12.8 g of l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene and about 7.0 g of copper cyanide (about 130 ml) Was added to and the phase was stirred for about 5 hours under a nitrogen atmosphere. After that, the solvent was removed under reduced pressure to obtain l, 2-Di (2-ethylhexyloxy) -4,5-dibromobenzene.

Subsequently, l, 2-Di (2-ethylhexyloxy) -4,5-dibromobenzene (about 2 g), NH ₃ (about 2 g) and Na (about 0.34 g) are added to a solvent of methanol (about 34 ml) and ， Stirring at room temperature for about 5 hours to obtain l, 3-Diimmo-5,6-di (2-ethylhexyloxy) isoindole.

The l, 3-Diimmo-5,6-di (2-ethylhexyloxy) isoinclole (about 2 g) and Hydroquinone (about 0.215 g) were mixed and reacted for about 48 hours at a temperature of about 210 ^° C. Octa (2 -ethylhexyloxy) Dihydrogen Phthalocyanine was obtained. Preparation Example 3-1

(Synthesis of green dye: Octa (1,4,7, 10-tetraoxaundecyl) Cu Phthalocyanine) 1,2 g of l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene and 6.05 g of copper cyanide (About 114 ml), which was stirred for about 15 hours under a nitrogen atmosphere and a temperature of 130 ^° C. Then, the solvent was removed under reduced pressure to obtain l, 2-Di (l, 4,7,10-tetraoxaundecyl) -4,5-dicyanobenzene.

Subsequently, the l, 2-Di (l, 4,7,10-tetraoxaundecyl) -4,5-dicyanobenzene (about 3.55 g), NH ₃ (about 2.0 g) and Na (about 0.39 g) were extracted with methane (about 39 ml) was added to the solvent and stirred for about 5 hours at room temperature, ^{'l, 3-Diimino-5,6} -di (l, 4,7, K) -tetraoxaundecyl) to give the isoindole.

The l, 3-Diimino-5,6-di (l, 4,7,10-tetraoxaun (iecyl) isomdole (about 1 g) and Cu (about 0.140 g) are mixed and about 18 at a temperature of about 220 ^° C. The reaction was performed for an hour to obtain Octa (1,4,7,10-tetraoxaundecyl) Cu Phthalocyanine. Preparation Example 3-2

(Synthesis of green ^{dye: Octa (l, 4, 7} , 10-tetraoxaundecyl) Co Phthalocyanine) l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene about 12.6 g and about 6.05 g Copper cyanide in a solvent Dimethylformamide (About 114 ml), which was stirred under a nitrogen atmosphere and ^at a temperature of 130 ^° C. for about 15 hours. After that, the solvent was removed under reduced pressure to obtain l, 2-Di (l, 4,7,10-tetraoxaundecyl) -4,5-dicyanobenzene.

Then, the l, 2-Di (l, 4,7,10-tetraoxaundecyl) - to the ^4, 5-dicyanobenzene (approximately 3.55 g), NH ₃ (about 2.0 g) and Na (approximately 0.39 g) methane (approx. 39 ml) was added to the solvent and stirred at room temperature for about 5 hours

1,3-Diimino-5,6-di (l, 4,7, 10-tetraoxaundecyl) isoindole was obtained.

L ^ -Diimino- ^ e-diilA ^ lO-tetraoxaundecyOisomdo ^ t L60 g) and Co (about 0.419 g) were mixed and reacted for about 17 hours under a temperature of about 280 ^° C. Octa (l, 4,7 , 10-tetraoxaundecyl) Co Phthalocyanine was obtained. Herbicide Example 3-3

(Synthesis of green ^{dye: Octa (l, 4, 7,10} -tetraoxaundecyl) Pt Phthalocyanine) l, 2-Di (2-ehtylhexyloxy) -4,5-dibromobenzene about 12.6 g and about 6.05 g Copper cyanide in a solvent Dimethylformamide (About 114 ml), which was stirred under a nitrogen atmosphere and ^at a temperature of 130 ^° C. for about 15 hours. After that, the mixture was removed under reduced pressure to obtain l, 2-Di (l, 4,7,10-tetraoxaundecyl) -4,5-dicyanobenzene.

Then, the l, 2-Di (l, 4,7,10-tetraoxaundecyl) -4,5-dicyanobenzene (about 3.55 g), NH ₃ (about 2.0 g) and Na (about 0.39 g) were added to methanol (about 39 ml) was added to the solvent and stirred for about 5 hours at

1,3-Diimino-5,6-di (l, 4,7,10-tetraoxaundecyl) isoindole was obtained.

L, ^3- Diimino-5,6-di (l, 4,7, l ()-tetraoxaundecyl) isomdole (about 1.5 g) and PtCl ₂ (about 0.250 g) are added to Dimethylformamide (about 3.0 ml), This was reacted at room temperature for about 24 hours to obtain Octa (l, 4,7,10-tetraoxaundecyl) Pt Phthalocyanine. [Examples and Comparative Examples]

 Example 1

 Based on 100 parts by weight of the binder resin according to Preparation Example 1;

 About 175 parts by weight of the semi-unsaturated unsaturated compound (ie, about 50 parts by weight of the bisphenol epoxy acrylate oligomer and about 125 parts by weight of nupentacrylate of dipentaerythr);

 About 625 parts by weight of a blue pigment dispersion (trade name: DJBLUE-01, manufacturer: MIKYNI, solvent: propylene glycol methyl ether acetate, pigment 15% by weight, about 93.75 parts by weight of pigment);

 About 28.75 parts by weight of the photopolymerization initiator (ie, about 6.25 parts by weight of OX-01 (manufacturer: BASF), about 15 parts by weight of Irgacure-369 (manufacturer: BASF), and about 4,4'-bisdiethylaminobenzophenone 7.5 parts by weight);

 About 316.25 parts by weight of solvent propylene glycol methyl ether acetate; And about 0.05 parts by weight of a fluorine-based leveling agent (trade name: F-474, manufacturer: DIC) were mixed and stirred at room temperature for about 2 hours, and then impurities were removed through a 1.2 μπι filter.

 Here, the dye according to Preparation Example 2-1 was mixed at about 125 parts by weight based on 100 parts by weight of the binder resin, and stirred at room temperature for about 2 hours to prepare a photosensitive resin composition.

 Example 2

 In Example 1, a photosensitive resin composition was manufactured under the same conditions and methods as in Example 1, except that the dye according to Preparation Example 2-2 was added in the same amount instead of the dye according to Preparation Example 2-1.

 Example 3

In Example 1, the same conditions and methods as in Example 1 were used except that the dye according to Preparation Example 2-3 was added at about 100 parts by weight based on 100 parts by weight of the binder resin, instead of the dye according to Preparation Example 2-1. A photosensitive resin composition was prepared. Comparative Example 1 In Example 1, a photosensitive resin composition was prepared under the same conditions and methods as in Example 1, except that the dye according to Preparation Example 2-1 was not added.

 Comparative Example 2. In Example 1, a photosensitive resin composition was prepared under the same conditions and methods as in Example 1, except that the dye according to Preparation Example 2-4 was added in the same amount instead of the dye according to Preparation Example 2-1. Example 4

 Based on 100 parts by weight of the binder resin according to Preparation Example 1;

 About 175 parts by weight of the semi-unsaturated unsaturated compound (ie, about 50 parts by weight of the bisphenol epoxy acrylate oligomer and about 125 parts by weight of nupentacrylate of dipentaerythr);

Green pigment dispersion 750 parts by weight (trade name: 0JGREEN-01, Manufacturer: Special saekryo, solvent: propylene glycol methyl ether acetate as a pigment 15 parts by weight _^0/0 aqueous dispersion, from about 112.5 parts by weight when converted to pigment content);

 About 28.75 parts by weight of the photopolymerization initiator (ie, about 6.25 parts by weight of OX-01 (manufacturer: BASF), about 15 parts by weight of Irgacure-369 (manufacturer: BASF), and 4,4'-bisdiethylaminobenzophenone About 7.5 parts by weight);

 About 316.25 parts by weight of solvent propylene glycol methyl ether acetate; And about 0.05 parts by weight of a fluorine-based leveling agent (trade name: F-474, manufacturer: DIC) were mixed and stirred at room temperature for about 2 hours, and then impurities were removed through a 1.2 filter.

 Here, the dye according to Preparation Example 3-1 was mixed at about 187.5 parts by weight based on 100 parts by weight of the binder resin, and stirred at room temperature for about 2 hours to prepare a photosensitive resin composition.

 Example 5

In Example 4, except that the dye according to Preparation Example 3-2 was added in the same amount, instead of the dye according to Preparation Example 3-1, a photosensitive resin composition was prepared under the same conditions and methods as in Example 4. Example 6

 In Example 4, the dye according to Preparation Example 3-1. Instead, the photosensitive resin composition was manufactured under the same conditions and methods as in Example 4, except that the dye according to Preparation Example 3-3 was added at about 162.5 parts by weight based on 100 parts by weight of the binder resin.

 Comparative Example 3

 In Example 4, a photosensitive resin composition was prepared under the same conditions and methods as in Example 4, except that the dye according to Preparation Example 3-1 was not added.

Experimental Example

 Experimental Example 1

 (Measurement of Light Transmittance by Wavelength for Pigments and Dyes)

 Blue pigment used in Examples 1 to 3 (Fig. La), dye according to Preparation Example 2-1 (Fig. Lb), using chromaticity measurement equipment (manufacturer: Otsuka, model name: MCPD-3000), Examples 4 to The spectral characteristics of the green pigment used in Fig. 6 (Fig. 2a) and the dye according to Preparation Example 3-1 (Fig. 2b) were measured, respectively, and the results are shown in Figs.

 As can be seen from Figure lb, the dye according to Preparation Example 2-1 has a light transmittance of about 90% or more in the wavelength region 430 465 nm, and has a spectral characteristic of about 55% or less in the wavelength region 495 ~ 505 nm It became.

 In addition, as can be seen through Figure 2b, the dye according to Preparation Example 3-1 has a spectral characteristic of more than about 95% of the transmittance in the wavelength region 530 ~ 540 nm, and about 55% or less of the transmittance in the wavelength range of 580 ~ 590 nm. It was confirmed to have.

 Experimental Example 2

Each photosensitive resin composition according to the above examples and comparative examples was spin-coated to a glass substrate (10 × 10 cm) to a thickness of 2 / 皿 to pre-bak for 2 minutes on a hot plate at 90 ^° C. bake), and then cooled at room temperature for 1 minute. This is exposed to an exposure dose of 100 mJ / caf (365 nm standard) using an exposure machine, and then in a ventilated oven at 220 ^° C. for about 30 minutes. Post-bake was performed.

 For each sample prepared by the above method, the spectral characteristics, light transmittance, luminance, ^ trast and heat resistance were measured by the following method, and the results are shown in Tables 1 to 2 and FIGS. 3 to 5.

 (Measurement of light transmittance and wavelength appearance of each color region for color filter)

 Using a chromaticity measurement equipment (manufacturer: Otsuka, model name: MCPD-3000), the color filter samples prepared by using the composition according to Example 2 and Comparative Example 1, and the composition according to Example 5 and Comparative Example 3 For each color filter sample prepared using the light transmittance for each wavelength region was measured and compared, and the results are shown in FIGS. 3 and 4, respectively.

 Then, the appearances of the color filter samples prepared by using the compositions according to Examples 2 and 5 were enlarged and observed, and the results are shown in FIGS. 5A to 5B.

 As can be seen from Figures 3 and 4, the sample prepared using the composition according to the embodiment includes a dye that satisfies the intrinsic spectral characteristics in a specific wavelength region, by synergy with the pigment It was confirmed that the color purity was improved by adjusting the light transmittance and the light transmission width of the color filter.

 (Transmittance measurement)

 The substrate after post-baking was measured for light transmittance (%) by using MCPD-3000 equipment (manufacturer: Otsuka). At this time, blue measured the maximum light transmittance (Max%) in the wavelength region 450 ~ 460 nm, green green wavelength 515 ~ 550nm.

 (Luminance measurement)

 The substrate after post-baking was measured for luminance (Y) using an MCPD-3000 apparatus (manufacturer: Otsuka). At this time, in order to compare luminance based on a constant color coordinate, blue was measured under X: 0.14, y: 0.06, green for x: 0.25, and y: 0.63.

 (Contrast measurement)

The substrate after the post-baking was measured using the CT-1 equipment (manufacturer: TSUBOSAKA) and the contrast according to the polarization. At this time, 30,000: 1 in a bare state was measured as a reference value. (Heat resistance measurement)

Substrate after post-baking in an oven at approximately 240 ^° C

 Color difference (AEab) was measured after heating. Table 1

Table 2

As can be seen from Table 1 and Table 2, the blue and green color filter samples prepared using the compositions according to Comparative Example 1 and Comparative Example 3 had a lower light transmittance and luminance than the Examples, It was confirmed that the contrast was relatively low due to the particle scattering effect.

 In addition, the blue color filter prepared by using the composition according to Comparative Example 2 was similar in the light transmittance, brightness and contrast, but the heat resistance was not suitable for the liquid crystal display manufacturing process having the actual thermal process.

 On the other hand, the color filter samples prepared using the compositions according to Examples 1 to 6 were excellent in transmittance, brightness and contrast, and also in terms of heat resistance, it was confirmed to satisfy the reference value 3 or less required by the actual process.

Claims

[Patent Claims]

 [Claim 1]

 Binder resins;

 Semi-aromatic unsaturated compounds;

 Blue pigments;

 A dye having a spectral property of 90% or more in a wavelength range of 430 to 465 nm and a light transmittance of 55% or less in a wavelength range of 495 to 505 nm;

 Polymerization initiator; And

 solvent

 Photosensitive resin composition for color filters comprising a.

[Claim 2]

 Binder resins;

 Semi-aromatic unsaturated compounds;

 Green pigments;

 A dye having a spectral property of 95% or more in a wavelength range of 530 to 540 nm and a light transmittance of 55% or less in a wavelength range of 580 to 590 nm;

 Polymerization initiator; And

 solvent

 Photosensitive resin composition for color filters comprising a.

[Claim 3]

 The method according to claim 1 or 2,

 The dye is a photosensitive resin composition for a color filter is a compound represented by the following formula (1):

[Formula 1]

 In Chemical Formula 1,

 M is Cu, Co, Al, Zn, Ni, Pt or Cr;

 N is nitrogen;

R ¹ to R ¹⁶ each independently represent a sulfonic group substituted with a hydrogen atom, a halogen atom, a carboxyl group, a hydroxy group, a sulfonic acid group, a heterocyclic acid hydroxy ^group, a sulfonic acid-alkoxy group, a sulfonic acid aryl group, an alkyl group having 1 to 20 carbon atoms, having a carbon number of 3 to It is a 20 cycloalkyl group, a C6-C20 aryl group, a C1-C20 heteroalkyl group, a C3-C20 heterocycloalkyl group, or a C3-C20 heteroaryl group.

[Claim 4]

 The method according to claim 1 or 2,

 The dye is a photosensitive resin composition for a color filter is a compound represented by the formula (2):

[Formula ² ]

In Chemical Formula 2,

 M is Cu, Co, Al, Zn, Ni, Pt or Cr;

 N is nitrogen;

 O is oxygen;

R ^a to R ^h are each independently an alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, a heteroalkyl group having 1 to 20 carbon atoms, a heterocycloalkyl group having 3 to 20 carbon atoms, or It is a C3-C20 heteroaryl group.

[Claim 5]

 The method of claim 1,

The dyes include Octa (2-ethylhexyloxy) Cu Phthalocyanine, Octa (2-ethylhexyloxy) Co Phthalocyanine, Octa (2-ethylhexyloxy) Al Phthalocyanine, Octa (2-ethylhexyloxy) Zn Phthalocyanine, Octa (2-ethylhexyloxy) Ni Phthalocyanine, Octa ( A photosensitive resin composition for color filters, which is at least one compound selected from the group consisting of 2-ethylhexyloxy) Pt Phthalocyanine, and Octa (2-ethylhexyloxy) Cr Phthalocyanine.

[Claim 6]

 The method of claim 2,

 The dye is Octa (l, 4,7, 10-tetraoxaundecyl) Cu Phthalocyanine, Octa (1,4,7, 10-tetraoxaundecyl) Co Phthalocyanine, Octa (l, 4,7, 10-tetraoxaundecyl) Al Phthalocyanine, Octa l, 4,7,10-tetraoxaundecyl) Zn Phthalocyanine,

Octa (1, 4,7, 10-tetraoxaundecyl) Ni Phthalocyanine, Octa (1, 4,7, 10-tetraoxaundecyl) Pt Phthalocyanine, and Octa (1,4,7,10-tetraoxaundecyl) Cr Phthalocyanine The photosensitive resin composition for color filters which is 1 or more types of compounds which become.

[Claim 7]

 The method of claim 1, wherein

 Per 100 parts by weight of the binder resin,

 100 to 250 parts by weight of the semi-aromatic bubbling compound;

 5 to 150 parts by weight of the pigment;

 50 to 250 parts by weight of the dye;

 5 to 50 parts by weight of the polymerization initiator; And

 100 to 500 parts by weight of the solvent

 Photosensitive resin composition for color filters comprising a.

[Claim 8]

 The method according to claim 1 or 2,

 The binder resin may be (meth) acrylic acid, itaconic acid, maleic acid, fumaric acid, vinyl acetate, 2-acryloxy butylhydrogenphthalate, and

10 to 40% by weight of a monomer having at least one ethylenic acid group selected from the group consisting of 2-acrylooxypropylhydrophthalphthalate; Isobutyl (meth) acrylate, tert-butyl (meth) acrylate lauryl (meth) acrylate, ste (meth) arylacrylate cyclonuclear (meth) acrylate isobornyl (meth) acrylate benzyl (meth) arc 2-hydroxy-hydroxyalkyl (meth) acrylate Trimethoxybutyl (meth) acrylate, ethylcarbyl (meth) acrylate, phenoxy butyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, phenoxyethylene glycol (meth) acrylic Latex, 2-hydroxythoxyethyl (meth) acrylate, 2-hydroxythoxypropyl (meth) acrylate,

2-acryloxy ethyl 2-hydroxypropyl (meth) phthalate,

 2-hydroxy-3-phenoxypropyl (meth) acrylate, triethyl siloxane

A photosensitive resin composition for color filters, wherein 60 to 90% by weight of at least one (meth) acrylate monomer selected from the group consisting of (meth) acrylate and ethyltriglycol (meth) acrylate is a copolymerized product.

[Claim 9]

 The method according to claim 1 or 2,

 The semi-unsaturated compound is ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, 1,4- Butanediol di (meth) acrylate, 1,6-nucleodiol di (meth) acrylate, neopentylglycol di (meth) acrylate, pentaerythri di (meth) acrylate, pentaerythritri Meth) acrylate, pentaerythrith, tetra (meth) acrylate, pentaerythrith, penta (meth) acrylate, pentaerythrith. Nucleated (meth) acrylate, dipentaerythritol, di (meth) acrylate, dipentaerythritol, tri (meth) acrylate, dipentaerythritol, tetra (meth) acrylate Penta (meth) acrylate, dipenta lysine nucleated (meth) acrylate, bisphenol A di (meth) acrylate, trimethyl propane tri (meth) acrylate, novolac epoxy (meth) acrylate, carboxyl group Dipenta lithri having a penta (meth) acrylate derivative, ethylene oxide glycerin trimethyl propane tri (meth) acrylate, propylene oxide glycerin tri (meth) acrylate, epoxy

Color filter which is at least one compound selected from the group consisting of a (meth) acrylate oligomer, a urethane (meth) acrylate oligomer, a tee (meth) acrylate oligomer, and a polyester (meth) acrylate oligomer for Photosensitive resin composition.

[Claim 10]

 The color filter manufactured using the photosensitive resin composition of Claim 1 or 2.