JP6768278B2 - Photosensitive resin composition - Google Patents

Description

The present invention relates to a photosensitive resin composition.

The color filter is a thin film filter type optical component that extracts three kinds of colors of red, green, and blue from white light to enable fine pixel units, and the size of one pixel is several tens to several hundreds of micrometers. Degree. Such a color filter has a black matrix layer formed in a fixed pattern on a transparent substrate to block the boundary between each pixel, and a plurality of colors (usually, usually) to form each pixel. It has a structure in which pixel portions in which the three primary colors (red (R), green (G), and blue (B)) are arranged in a predetermined procedure are laminated in order. Generally, a color filter can be manufactured by coating three or more kinds of hues on a transparent substrate by a dyeing method, an electrodeposition method, a printing method, a pigment dispersion method, or the like. Recently, a pigment dispersion method using a pigment dispersion type photosensitive resin has been mainly used.

The pigment dispersion method, which is one of the methods for embodying a color filter, comprises a colorant and an alkali-soluble resin, a photopolymerization monomer, a photopolymerization initiator, an epoxy resin, and a solvent on a transparent substrate provided with a black matrix. A colored thin film is formed by coating a photosensitive resin composition containing other additives, exposing the pattern of the form to be formed, and then repeating a series of processes of removing the unexposed portion with a solvent and thermally curing the non-exposed portion. The method. This method has been actively applied in the manufacture of LCDs for mobile phones, notebook PCs, monitors, TVs and the like. Recently, not only excellent pattern characteristics but also high color reproduction rate, high brightness and high brightness / darkness ratio have been further improved in the photosensitive resin composition for color filters using the pigment dispersion method having various advantages. The reality is that performance is required.

However, color reproduction is realized by passing the light emitted from the light source through the color filter, but in this process, a part of the light is absorbed by the color filter, so that the light efficiency is lowered and the color filter is also used. There is a fundamental limitation that perfect color reproduction is not possible due to the pigment characteristics as.

The Republic of Korea Publication No. 2012-12188 discloses a red coloring composition for a color filter and a color filter, but does not present an alternative to the above problem.

Republic of Korea Published Patent No. 2012-12188

An object of the present invention is to provide a photosensitive resin composition capable of increasing quantum efficiency without deteriorating light emission characteristics.

Another object of the present invention is to provide a photosensitive resin composition capable of producing a color filter having improved pattern formability and light emitting characteristics.

Another object of the present invention is to provide a color filter manufactured of the photosensitive resin composition and an image display device including the color filter.

<1> Photoluminescence Quantum dot particles, photopolymerizable compound, photopolymerization initiator, alkali-soluble resin, solvent and antioxidant are included, and the antioxidant is 0.1 to 0.1 to the total solid weight of the composition. A photosensitive resin composition contained in an amount of 10% by weight.

<2> The photoluminescence quantum dot has a core-shell dual structure, and the core has CdSe, CdS, ZnS, ZnSe, ZnTe, CdTe, CdSeTe, CdZnS, PbSe, AgInZnS, HgS, HgSe. , HgTe, GaN, GaP, GaAs, InP, InAs and ZnO, the shell consisting of CdSe, ZnSe, ZnS, ZnTe, CdTe, PbS, TiO, SrSe and HgSe. The photosensitive resin composition according to <1>, which is one or more selected from the group.

<3> The photosensitive resin composition according to <1>, wherein the particles of the photoluminescence quantum dots are red quantum dot particles, green quantum dot particles, or blue quantum dot particles.

<4> The particles of the photoluminescence quantum dots are composed of a group II-VI semiconductor compound; a group III-V semiconductor compound; a group IV-VI semiconductor compound; a group IV element or a compound containing the same; or a combination thereof. The photosensitive resin composition according to <1>.

<5> The photosensitive resin composition according to <1>, wherein the antioxidant contains at least one selected from the group consisting of phosphorus-based, sulfur-based and phenol-based antioxidants.

<6> The phosphorus-based antioxidant is 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3,9-diphosphaspiro [5]. .5] Undecane, diisodecylpentaerythritol diphosphite, bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite, 2,2'-methylenebis (4,6-di-t-butyl-1- Phenyloxy) (2-ethylhexyloxy) phosphorus, 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d] , F] [1,3,2] dioxaphosphepine, triphenylphosphite, diphenylisodecylphosphite, phenyldiisodecylphosphite, 4,4'-butylidene-bis (3-methyl-6-t-butyl) Phenylditridecyl) phosphite, octadecylphosphite, tris (nonylphenyl) phosphite, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10- (3,5-di-t-) Butyl-4-hydroxybenzyl) -9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10-decyloxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10- Oxide, Tris (2,4-di-t-butylphenyl) phosphite, cyclic neopentanetetraylbis (2,4-di-t-butylphenyl) phosphite, cyclic neopentanetetraylbis (2, 6-di-t-butylphenyl) phosphite, 2,2-methylenebis (4,6-di-t-butylphenyl) octylphosphite, tris (2,4-di-t-butylphenyl) phosphite, tetrakis (2,4-di-t-Butylphenyl) [1,1-biphenyl] -4,4'-diylbisphosphonite, bis [2,4-bis (1,1-dimethylethyl) -6-methylphenyl ] The photosensitive resin composition according to <5>, which is one or more selected from the group consisting of ethyl ester and phosphonic acid.

<7> The sulfur-based antioxidant is 2,2-bis ({[3- (dodecylthio) propionyl] oxy} methyl) -1,3-propanediyl-bis [3- (dodecylthio) propionate], 2-. Mercaptobenzimidazole, dilauryl-3,3'-thiodipropionate, dimyristyl-3,3'-thiodipropionate, distearyl-3,3'-thiodipropionate, pentaerythricyl-tetrakis (3-lauryl) The photosensitive resin composition according to <5> above, which is one or more selected from the group consisting of thiopropionate) and 2-mercaptobenzimidazole.

<8> The phenolic antioxidant is 3,9-bis [2- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1-dimethylethoxy]-. 2,4,8,10-Tetraoxaspiro [5.5] undecane, pentaerythrityl tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], 1,3,5 -Trimethyl-2,4,6-tris (3', 5'-di-t-butyl-4-hydroxybenzyl) benzene, triethylene glycol-bis [3- (3-t-butyl-5-methyl-4) -Hydroxyphenyl) propionate], 4,4'-thiobis (6-t-butyl-3-methylphenol), tris- (3,5-di-t-butyl-4-hydroxybenzyl) -isocyanurate, 1, 3,5-Tris (4-t-butyl-3-hydroxy-2,6-dimethylbenzyl) -isocyanurate, 1,6-hexanediol-bis [3- (3,5-di-t-butyl-4) -Hydroxyphenyl) propionate], 2,2-thio-diethylenebis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], N, N'-hexamethylenebis (3,5-) Di-t-butyl-4-hydroxy-hydrocinnamamide), 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzene, 2 , 4-bis [(octylthio) methyl] -O-cresol, 1,6-hexanediol-bis- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], octadecyl- [3 -(3,5-di-t-butyl-4-hydroxyphenyl) propionate, 2,2'-methylenebis (4-methyl-6-t-butylphenol), 4,4'-butylidene-bis (3-methyl- 6-t-Butylphenol), 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, 1,3,5-tris (4-hydroxybenzyl) benzene and tetrakis [methylene -3- (3,5'-di-t-butyl-4'-hydroxyphenylpropionate)] The photosensitive resin composition according to <5>, which is one or more selected from the group consisting of methane.

<9> In the total solid content weight of the composition, the particles of the photoluminescence quantum dots are 3 to 80% by weight, the photopolymerizable compound is 5 to 70% by weight, and the photopolymerization initiator is 0. The photoluminescent resin composition according to <1>, wherein the alkali-soluble resin is contained in an amount of 1 to 20% by weight and 5 to 80% by weight.

<10> The photosensitive resin composition according to <1>, wherein the solvent is contained in an amount of 60 to 90% by weight based on the total weight of the composition.

<11> A color filter produced by the photosensitive resin composition according to any one of <1> to <10>.

<12> The color filter according to <11>, wherein the color filter includes a red pattern layer containing red quantum dot particles, a green pattern layer containing green quantum dot particles, and a transparent pattern layer not containing quantum dot particles. ..

<13> An image display device including the color filter according to <11>.

<14> The image display device includes a light source that emits blue light, a red pattern layer containing red quantum dot particles, a green pattern layer containing green quantum dot particles, and a transparent pattern layer not containing quantum dot particles. The image display device according to <13>, which includes the color filter.

The photosensitive resin composition of the present invention can increase the quantum efficiency without deteriorating the light emitting characteristics.

When a color filter is produced from the photosensitive resin composition of the present invention, the pattern forming property is excellent and the light emitting characteristics are remarkably improved.

FIG. 1 shows the intensity of light emitted by irradiating a color filter produced by using the photosensitive resin compositions of Examples 1 to 7 and Comparative Examples 1 to 3 with light. It is the figure which showed roughly.

The present invention includes particles of photoluminescent quantum dots, a photopolymerizable compound, a photopolymerization initiator, an alkali-soluble resin, a solvent and an antioxidant, and the antioxidant is 0.1 in the total solid weight of the composition. The present invention relates to a photoluminescent resin composition capable of producing a color filter having improved pattern forming property and light emitting property by increasing quantum efficiency without deteriorating light emitting property by containing 10% by weight.

Hereinafter, the present invention will be described in detail.

<Photosensitive resin composition>
The photosensitive resin composition of the present invention contains 0.1 to 10% by weight of the total solid content of the photoluminescent quantum dot particles, photopolymerizable compound, photopolymerization initiator, alkali-soluble resin, solvent and composition. Contains antioxidants.

Particles of Photoluminescent Quantum Dots The photosensitive resin composition of the present invention contains particles of photoluminescent quantum dots.

Quantum dots are nano-sized semiconductor materials. Atoms form molecules, which form an aggregate of small molecules called clusters to form nanoparticles. When such nanoparticles exhibit particularly semiconductor properties, they are called quantum dots.

When a quantum dot receives energy from the outside and reaches a floating state, it emits energy due to its own (autonomously) corresponding energy band gap.

The photosensitive resin composition of the present invention contains such particles of photoluminescence quantum dots, so that the color filter produced from the photosensitive resin composition can emit light (photoluminescence) by irradiation with light.

In a normal image display device including a color filter, white light passes through the color filter to realize color. In this process, a part of the light is absorbed by the color filter, so that the light efficiency is lowered. However, when the color filter produced by the photosensitive resin composition of the present invention is included, the color filter itself emits light by the light of the light source, so that more excellent light efficiency can be realized.

Further, since light having a hue is emitted, the color reproducibility is more excellent, and the viewing angle can be improved by emitting light in all directions by photoluminescence.

The quantum dot particles according to the present invention are not particularly limited as long as they are quantum dot particles that can emit light when stimulated by light, and are, for example, II-VI group semiconductor compounds; III-V group semiconductor compounds; IV-VI group semiconductor compounds; It can be selected from the group consisting of group IV elements or compounds containing them; and combinations thereof. These can be used alone or in combination of two or more.

The II-VI group semiconductor compound is a binary compound selected from the group consisting of CdS, CdSe, CdTe, ZnS, ZnSe, ZnTe, ZnO, HgS, HgSe, HgTe and mixtures thereof; CdSeS, CdSeTe, CdSTe, ZnSeS. , ZnSeTe, ZnSTe, HgSeS, HgSeTe, HgSTe, CdZnS, CdZnSe, CdZnTe, CdHgS, CdHgSe, CdHgTe, HgZnS, HgZnSe, HgZnTe and a mixture thereof, CdZnS It can be selected from the group consisting of quaternary compounds selected from the group consisting of CdHgSeS, CdHgSeTe, CdHgSTe, HgZnSeS, HgZnSeTe, HgZnSTe and mixtures thereof. The group III-V semiconductor compound is a binary compound selected from the group consisting of GaN, GaP, GaAs, GaSb, AlN, AlP, AlAs, AlSb, InN, InP, InAs, InSb and a mixture thereof; , GaNSb, GaPAs, GaPSb, AlNP, AlNAs, AlNSb, AlPAs, AlPSb, InNP, InNAs, InNSb, InPAs, InPSb, GaAlNP and ternary compounds selected from the group consisting of mixtures thereof; and GaAlNAs, GaAlNSb, GaAlPA. It can be selected from the group consisting of quaternary compounds selected from the group consisting of GaAlPSb, GaInNP, GaInNAs, GaInNSb, GaInPAs, GaInPSb, InAlNP, InAlNAs, InAlNSb, InAlPAs, InAlPSb and mixtures thereof. The IV-VI group semiconductor compound is a binary compound selected from the group consisting of SnS, SnSe, SnTe, PbS, PbSe, PbTe and mixtures thereof; SnSeS, SnSeTe, SnSte, PbSeS, PbSeTe, PbSe, SnPbS, SnP. , SnPbTe and ternary compounds selected from the group consisting of mixtures thereof; and can be selected from the group consisting of quaternary compounds selected from the group consisting of SnPbSSe, SnPbSeTe, SnPbSTe and mixtures thereof. The Group IV element or a compound containing the same is an element compound selected from the group consisting of Si, Ge and a mixture thereof; and a binary compound selected from the group consisting of SiC, SiGe and a mixture thereof. Can be selected.

Quantum dot particles can be a homogeneous single structure; a dual structure such as a core-shell, gradient structure, or a mixed structure thereof.

In the core-shell dual structure, the materials that make up each core and shell can consist of the aforementioned semiconductor compounds that are different from each other. For example, the core was selected from the group consisting of CdSe, CdS, ZnS, ZnSe, ZnTe, CdTe, CdSeTe, CdZnS, PbSe, AgInZnS, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InAs and ZnO. It can contain, but is not limited to, one or more substances. The shell may contain, but is not limited to, one or more substances selected from the group consisting of CdSe, ZnSe, ZnS, ZnTe, CdTe, PbS, TiO, SrSe and HgSe.

Just as the colored photosensitive resin compositions used in the manufacture of ordinary color filters contain red, green, and blue colorants to embody the hue, the photoluminescent quantum dot particles are also red quantum dot particles, green quantum. It can be classified into dot particles and blue quantum dot particles. The quantum dot particles according to the present invention can be red quantum dot particles, green quantum dot particles, or blue quantum dot particles.

The diameter of the quantum dot particles according to the present invention is not particularly limited.

The red, green and blue quantum dot particles can be classified by particle size, and the particle size becomes smaller in the procedure of red, green and blue. Specifically, the red quantum dot particles can have a particle size of 5 nm or more and 10 nm or less, the green quantum dot particles can have a particle size of more than 3 nm to 5 nm or less, and the blue quantum dot particles can have a particle size of 1 nm or more and 3 nm or less.

Upon irradiation with light, the red quantum dot particles emit red light, the green quantum dot particles emit green light, and the blue quantum dot particles emit blue light.

Quantum dot particles can be synthesized by a wet chemical process, an organometallic chemical deposition step or a molecular beam epitaxy step. The wet chemical process is a method of growing particles by putting a precursor substance in an organic solvent. When a crystal is grown, the organic solvent is naturally coordinated to the surface of the quantum dot crystal and acts as a dispersant to regulate the growth of the crystal, resulting in metalorganic vapor deposition (MOCVD). The growth of nanoparticles can be controlled through steps that are easier and cheaper than vapor deposition methods such as chemical vapor deposition () and molecular beam epitaxy (MBE).

The content of the quantum dot particles according to the present invention is not particularly limited, and can be contained, for example, in an amount of 3 to 80% by weight, preferably 5 to 70% by weight, based on the total solid weight of the photosensitive resin composition. .. When the content is within the above range, the luminous efficiency is high and the pixel pattern can be easily formed.

Photopolymerizable Compound The photopolymerizable compound according to the present invention includes a monofunctional monomer, a bifunctional monomer, and other polyfunctional monomers as compounds that can be polymerized by the action of a photopolymerization initiator described later. Can be mentioned. These can be used alone or in combination of two or more.

Specific examples of the monofunctional monomer include nonylphenylcarbitol acrylate, 2-hydroxy-3-phenoxypropyl acrylate, 2-ethylhexylcarbitol acrylate, 2-hydroxyethyl acrylate, N-vinylpyrrolidone and the like. it can.

Specific examples of the bifunctional monomer include 1,6-hexanediol di (meth) acrylate, ethylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate, and triethylene glycol di (meth) acrylate. Examples thereof include bis (acryloyloxyethyl) ether of bisphenol A and 3-ethylpentanediol di (meth) acrylate.

Specific examples of other polyfunctional monomers include trimethylolpropantri (meth) acrylate, ethoxylated trimethylolpropanetri (meth) acrylate, propoxylated trimethylolpropanetri (meth) acrylate, and pentaerythritol tri (meth). ) Acrylate, pentaerythritol tetra (meth) acrylate, dipentaerythritol penta (meth) acrylate, ethoxylated dipentaerythritol hexa (meth) acrylate, propoxylated dipentaerythritol hexa (meth) acrylate, dipentaerythritol hexa (meth) Examples thereof include acrylate, dipentaerythritol pentaacrylate succinic acid monoester.

The content of the photopolymerizable compound according to the present invention is not particularly limited, and can be contained, for example, in an amount of 5 to 70% by weight, preferably 10 to 60% by weight, based on the total solid content of the photosensitive resin composition. .. Within the above range, the pixel pattern can be easily formed and the pattern can be prevented from peeling off.

Photopolymerization Initiator The photopolymerization initiator according to the present invention is not particularly limited, and examples thereof include triazine-based compounds, acetophenone-based compounds, biimidazole-based compounds, and oxime-based compounds. These can be used alone or in combination of two or more.

The type of triazine-based compound is not particularly limited, and specifically, 2,4-bis (trichloromethyl) -6- (4-methoxyphenyl) -1,3,5-triazine, 2,4-bis. (Trichloromethyl) -6- (4-methoxynaphthyl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6-piperonyl-1,3,5-triazine, 2,4-bis ( Trichloromethyl) -6- (4-methoxystyryl) -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (5-methylfuran-2-yl) ethenyl] -1 , 3,5-Triazine, 2,4-bis (trichloromethyl) -6- [2- (fran-2-yl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl)- 6- [2- (4-diethylamino-2-methylphenyl) ethenyl] -1,3,5-triazine, 2,4-bis (trichloromethyl) -6- [2- (3,4-dimethoxyphenyl) ethenyl ] -1,3,5-Triazine and the like.

The type of the acetophenone-based compound is not particularly limited, and specifically, diethoxyacetophenone, 2-hydroxy-2-methyl-1-phenylpropan-1-one, benzyldimethylcatal, 2-hydroxy-1. -[4- (2-Hydroxyethoxy) phenyl] -2-methylpropane-1-one, 1-hydroxycyclohexylphenylketone, 2-methyl-1- (4-methylthiophenyl) -2-morpholinopropane-1-one , 2-Benzyl-2-dimethylamino-1- (4-morpholinophenyl) butane-1-one, 2-hydroxy-2-methyl-1- [4- (1-methylvinyl) phenyl] propan-1-one Benzyl and the like can be mentioned.

Moreover, the compound represented by the following chemical formula 1 can be mentioned.

In the above formula, R _{1 to} R ₄ are independently substituted or unsubstituted phenyl group with hydrogen atom, halogen atom, hydroxyl group, alkyl group having 1 to 12 carbon atoms, and alkyl having 1 to 12 carbon atoms, respectively. Indicates a benzyl group substituted or unsubstituted by a group, or a naphthyl group substituted or unsubstituted by an alkyl group having 1 to 12 carbon atoms.

The type of the compound represented by the chemical formula 1 is not particularly limited, and specifically, 2-methyl-2-amino (4-morpholinophenyl) ethane-1-one, 2-ethyl-2-amino ( 4-Molholinophenyl) ethane-1-one, 2-propyl-2-amino (4-morpholinophenyl) ethane-1-one, 2-butyl-2-amino (4-morpholinophenyl) ethane-1-one, 2 -Methyl-2-amino (4-morpholinophenyl) propan-1-one, 2-methyl-2-amino (4-morpholinophenyl) butane-1-one, 2-ethyl-2-amino (4-morpholinophenyl) Propane-1-one, 2-ethyl-2-amino (4-morpholinophenyl) butane-1-one, 2-methyl-2-methylamino (4-morpholinophenyl) propan-1-one, 2-methyl-2 -Dimethylamino (4-morpholinophenyl) propan-1-one, 2-methyl-2-dimethylamino (4-morpholinophenyl) propan-1-one and the like can be mentioned.

The type of the biimidazole-based compound is not particularly limited, and specifically, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetraphenylbiimidazole, 2,2. '-Bis (2,3-dichlorophenyl) -4,4', 5,5'-tetraphenylbiimidazole, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetra ( Alkoxyphenyl) biimidazole, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetra (trialkoxyphenyl) biimidazole, phenyl group at 4,4', 5,5'positions Examples thereof include an imidazole compound in which is substituted with a carboalkoxy group. Of these, 2,2'-bis (2-chlorophenyl) -4,4', 5,5'-tetraphenylbiimidazole, 2,2'-bis (2,3-dichlorophenyl) -4,4', 5 , 5'-Tetraphenylbiimidazole is preferred.

The type of the oxime compound is not particularly limited, and specific examples thereof include compounds represented by the following chemical formulas 2, 3 and 4.

Examples of commercially available products include Irgaque-907 manufactured by BASF.

In addition, the photosensitive resin composition of the present invention can be further used in combination with other photopolymerization initiators usually used in the art as long as the object of the present invention is not impaired. Examples thereof include benzoin compounds, benzophenone compounds, thioxanthone compounds, and anthracene compounds. These can be used alone or in combination of two or more.

The type of the benzoin compound is not particularly limited, and specific examples thereof include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, and benzoin isobutyl ether.

The types of benzophenone compounds are not particularly limited, and specifically, benzophenone, methyl o-benzoylbenzoate, 4-phenylbenzophenone, 4-benzoyl-4'-methyldiphenylsulfide, 3,3'. , 4,4'-tetra (tert-butylperoxycarbonyl) benzophenone, 2,4,6-trimethylbenzophenone, 4,4'-di (N, N'-dimethylamino) -benzophenone and the like.

The type of the thioxanthone-based compound is not particularly limited, and specific examples thereof include 2-isopropylthioxanthone, 2,4-dichlorothioxanthone, 2,4-dichlorothioxanthone, 1-chloro-4-propoxythioxanthone, and the like. Can be mentioned.

The type of anthracene compound is not particularly limited, and specifically, 9,10-dimethoxyanthracene, 2-ethyl-9,10-dimethoxyanthracene, 9,10-diethoxyanthracene, 2-ethyl. -9,10-diethoxyanthracene and the like can be mentioned.

In addition, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, 10-butyl-2-chloroacrydone, 2-ethylanthraquinone, benzyl, 9,10-phenanthrenquinone, camphorquinone, methyl phenylglioxylate, titanosen Compounds and the like can be further exemplified.

The content of the photopolymerization initiator according to the present invention is not particularly limited, and is, for example, 0.1 to 20% by weight, preferably 0.5 to 15% by weight, based on the total solid content of the photosensitive resin composition. Can be included. Within the above range, the spontaneous photosensitive resin composition is made highly sensitive, the strength of the pixel portion can be improved, the smoothness on the surface of the pixel portion is improved, and the formation of a fine pixel pattern is easy.

In addition, the photosensitive resin composition of the present invention may further contain a photopolymerization initiator. In this case, the sensitivity efficiency of the composition becomes higher, and the productivity of the color filter formed by using the composition is improved. The type of the photopolymerization initiator is not particularly limited as long as it is generally used in the art, and specific examples thereof include an amine compound and a carboxylic acid compound. These can be used alone or in combination of two or more.

Specific examples of the amine compound include aliphatic amine compounds such as triethanolamine, methyldiethanolamine and triisopropanolamine, methyl 4-dimethylaminobenzoate, ethyl 4-dimethylaminobenzoate, isoamyl 4-dimethylaminobenzoate, 4 -Dimethylamino 2-ethylhexyl benzoate, 2-dimethylaminoethyl benzoate, N, N-dimethylparatoluidine, 4,4'-bis (dimethylamino) benzophenone (commonly known as Michler's ketone), 4,4'-bis (diethylamino) ) Aromatic amine compounds such as benzophenone can be mentioned.

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

The content of the photopolymerization initiator according to the present invention is not particularly limited, and is, for example, 0.1 to 20% by weight, preferably 1 to 10% by weight, based on the total solid content of the photosensitive resin composition. Can be Within the above range, the sensitivity efficiency of the composition is higher and the productivity of the color filter formed using the composition is improved.

Alkali-soluble resin The alkali-soluble resin is polymerized containing an ethylenically unsaturated monomer having a carboxy group. This is a component that imparts solubility to the alkaline developer used in the developing process at the time of pattern formation.

The ethylenically unsaturated monomer having a carboxy group is not particularly limited, and is, for example, monocarboxylic acids such as acrylic acid, methacrylic acid and crotonic acid; dicarboxylic acids such as fumaric acid, mesaconic acid and itaconic acid and these. Anhydrous; ω-carboxypolycaprolactone Mono (meth) acrylate and other polymer mono (meth) acrylates having carboxy groups and hydroxyl groups at both ends can be mentioned, and acrylic acid and methacrylic acid are preferable. Can be. These can be used alone or in combination of two or more.

The alkali-soluble resin according to the present invention can be polymerized by further containing at least one other monomer copolymerizable with the monomer. For example, styrene, vinyltoluene, methylstyrene, p-chlorostyrene, o-methoxystyrene, m-methoxystyrene, p-methoxystyrene, o-vinylbenzylmethyl ether, m-vinylbenzylmethyl ether, p-vinylbenzylmethyl ether. , O-Vinylbenzylglycidyl ether, m-vinylbenzylglycidyl ether, p-vinylbenzylglycidyl ether and other aromatic vinyl compounds; N-cyclohexylmaleimide, N-benzylmaleimide, N-phenylmaleimide, No-o-hydroxyphenylmaleimide , Nm-hydroxyphenylmaleimide, Np-hydroxyphenylmaleimide, No-methylphenylmaleimide, Nm-methylphenylmaleimide, Np-methylphenylmaleimide, NO-methoxyphenylmaleimide, N N-substituted maleimide compounds such as -m-methoxyphenyl maleimide and N-p-methoxyphenyl maleimide; methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, i-propyl (meth) acrylate Alkyl (meth) acylates such as n-butyl (meth) acrylate, i-butyl (meth) acrylate, sec-butyl (meth) acrylate, t-butyl (meth) acrylate; cyclopentyl (meth) acrylate, cyclohexyl (meth) ) Acrylate, 2-methylcyclohexyl (meth) acrylate, tricyclo [5.2.1.0 ^2,6 ] decane-8-yl (meth) acrylate, 2-dicyclopentanyloxyethyl (meth) acrylate, isobonyl ( Alicyclic (meth) acrylates such as meta) acrylate; aryl (meth) acrylates such as phenyl (meth) acrylate and benzyl (meth) acrylate; 3- (methacryloyloxymethyl) oxetane, 3- (methacryloyloxymethyl) -3-ethyloxetane, 3- (methacryloyloxymethyl) -2-trifluoromethyloxetane, 3- (methacryloyloxymethyl) -2-phenyloxetane, 2- (methacryloyloxymethyl) oxetane, 2- (methacryloyloxymethyl) Examples thereof include unsaturated oxetane compounds such as -4-trifluoromethyloxetane. These can be used alone or in combination of two or more.

As used herein, (meth) acrylate means acrylate or methacrylate.

The content of the alkali-soluble resin according to the present invention is not particularly limited, and can be contained, for example, in an amount of 5 to 80% by weight, preferably 10 to 70% by weight, based on the total solid content of the photosensitive resin composition. .. Within the above range, the solubility in the developing solution is sufficient, so that pattern formation is easy, the film reduction of the pixel portion of the exposed portion is prevented during development, and the removal property of the non-pixel portion is improved.

Solvent The solvent according to the present invention is not particularly limited and can be an organic solvent commonly used in the art.

Specific examples of the solvent include ethylene glycol monoalkyl ethers such as ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monopropyl ether, and ethylene glycol monobutyl ether; diethylene glycol dimethyl ether, diethylene glycol diethyl ether, and diethylene glycol dipropyl ether. Diethylene glycol dialkyl ethers such as diethylene glycol dibutyl ether; alkylene glycol alkyl ether acetates such as methyl cellosolve acetate and ethyl cellosolve acetate; propylene glycol monomethyl ether acetate, propylene glycol monoethyl ether acetate, propylene glycol monopropyl ether acetate, methoxybutyl acetate, Alkylene glycol alkyl ether acetates such as methoxypentyl acetate; aromatic hydrocarbons such as benzene, toluene, xylene, mesityrene; ketones such as methyl ethyl ketone, acetone, methyl amyl ketone, methyl isobutyl ketone, cyclohexanone; ethanol, propanol, butanol , Alcohols such as hexanol, cyclohexanol, ethylene glycol, glycerin; esters such as ethyl 3-ethoxypropionate, methyl 3-methoxypropionate, cyclic esters such as γ-butyrol lactone; and the like. .. These can be used alone or in combination of two or more.

The content of the solvent according to the present invention is not particularly limited, and can be contained in, for example, 60 to 90% by weight, preferably 70 to 85% by weight, based on the total weight of the photosensitive resin composition. Can be done. When the content of the solvent is within the above range, the effect of improving the coatability is provided.

In the photosensitive resin composition containing particles of the antioxidant photominescence quantum dots, there is a problem that radicals generated during the hard baking process induce surface oxidation of the quantum dots, and in this case, the light emitting characteristics are deteriorated. ..

Now, the present invention solves the above-mentioned problems by containing an antioxidant in a specific range of content. That is, the photosensitive resin composition of the present invention is remarkably excellent in both emission intensity and maintenance rate of emission intensity.

FIG. 1 is a diagram comparing the emission intensity and the maintenance rate of the emission intensity of the embodiment of the present invention and the comparative example.

The content of the antioxidant according to the present invention is 0.1 to 10% by weight based on the total solid weight of the photosensitive resin composition. If the content of the antioxidant is less than 0.1% by weight, it is difficult to suppress the quenching phenomenon in the hard baking process, and if it exceeds 10% by weight, there is a problem that pattern peeling occurs.

The antioxidant is preferably contained in an amount of 0.5 to 8% by weight based on the total solid content of the photosensitive resin composition in terms of color realization and pattern formation, and is preferably contained in an amount of 1 to 5% by weight. Is more preferable.

The type of antioxidant that can be used in the present invention is not particularly limited, but preferably includes at least one selected from the group consisting of phosphorus-based, sulfur-based and phenol-based antioxidants.

The type of phosphorus-based antioxidant is not particularly limited, and specifically, 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-. Tetraoxa-3,9-diphosphaspiro [5.5] undecane, diisodecylpentaerythritol diphosphite, bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite, 2,2'-methylenebis (4,6) -Di-t-butyl-1-phenyloxy) (2-ethylhexyloxy) phosphorus, 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8, 10-Tetra-t-butyldibenz [d, f] [1,3,2] dioxaphosfepine, triphenylphosphite, diphenylisodecylphosphite, phenyldiisodecylphosphite, 4,4'-butylidene-bis ( 3-Methyl-6-t-Butylphenylditridecyl) phosphite, octadecylphosphite, tris (nonylphenyl) phosphite, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10- (3,5-di-t-butyl-4-hydroxybenzyl) -9,10-dihydro-9-oxa-10-phosphaphenylantrene-10-oxide, 10-decyloxy-9,10-dihydro-9-oxa -10-Phosphaphenanthrene-10-oxide, tris (2,4-di-t-butylphenyl) phosphite, cyclic neopentanetetraylbis (2,4-di-t-butylphenyl) phosphite, cy Clickneopentanetetraylbis (2,6-di-t-butylphenyl) phosphite, 2,2-methylenebis (4,6-di-t-butylphenyl) octylphosphite, tris (2,4-di- t-butylphenyl) phosphite, tetrakis (2,4-di-t-butylphenyl) [1,1-biphenyl] -4,4'-diylbisphosphonite, bis [2,4-bis (1,1) -Dimethylethyl) -6-methylphenyl] ethyl ester, phosphonic acid and the like can be mentioned.

Among the phosphorus-based antioxidants, 2,2'-methylenebis (4,6-di-t-butyl-1-phenyloxy) (2-ethylhexyloxy) phosphorus, 3 in terms of heat resistance and heat discoloration prevention. , 9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5] undecane, and 6- [3-( 3-t-Butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d, f] [1,3,2] dioxaphosphepine, etc. preferable.

Examples of commercially available phosphorus-based antioxidants include Irgafos 168 (manufactured by BASF) and Sumilizer GP (manufactured by Sumitomo Chemical Co., Ltd.).

The type of sulfur-based antioxidant is not particularly limited, and specifically, 2,2-bis ({[3- (dodecylthio) propionyl] oxy} methyl) -1,3-propanediyl-bis [3]. -(Dodecylthio) propionate], 2-mercaptobenzimidazole, dilauryl-3,3'-thiodipropionate, dimyristyl-3,3'-thiodipropionate, distearyl-3,3'-thiodipropionate, Examples thereof include pentaerythricyl-tetrakis (3-laurylthiopropionate) and 2-mercaptobenzimidazole.

Among the sulfur-based antioxidants, 2,2-bis ({3- (dodecylthio) propionyl} oxy) methyl) 1,3-propanediyl-bis [3- (dodecylthio) is used in terms of heat resistance and heat discoloration prevention. ) Propionate], 2-mercaptobenzimidazole and the like are preferable.

Examples of commercially available sulfur-based antioxidants include Irganox 1035 (manufactured by BASF).

The type of phenolic antioxidant is not particularly limited, and specifically, 3,9-bis [2- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy]. -1,1-dimethylethoxy] -2,4,8,10-tetraoxaspiro [5.5] undecane, pentaerythrityl tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) ) Propionate], 1,3,5-trimethyl-2,4,6-tris (3', 5'-di-t-butyl-4-hydroxybenzyl) benzene, triethylene glycol-bis [3- (3- (3- (3-) t-Butyl-5-methyl-4-hydroxyphenyl) propionate], 4,4'-thiobis (6-t-butyl-3-methylphenol), tris- (3,5-di-t-butyl-4- Hydroxybenzyl) -isocyanurate, 1,3,5-tris (4-t-butyl-3-hydroxy-2,6-dimethylbenzyl) -isocyanurate, 1,6-hexanediol-bis [3- (3,3) 5-di-t-Butyl-4-hydroxyphenyl) propionate], 2,2-thio-diethylenebis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], N, N' -Hexamethylenebis (3,5-di-t-butyl-4-hydroxy-hydrocinnamamide), 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl) -4-Hydroxybenzyl) benzene, 2,4-bis [(octylthio) methyl] -O-cresol, 1,6-hexanediol-bis- [3- (3,5-di-t-butyl-4-hydroxy) Phenyl) propionate], octadecyl- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate, 2,2'-methylenebis (4-methyl-6-t-butylphenol), 4,4' -Butylidene-bis (3-methyl-6-t-butylphenol), 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, 1,3,5-tris (4) -Hydroxybenzyl) benzene and tetrakis [methylene-3- (3,5'-di-t-butyl-4'-hydroxyphenylpropionate)] methane and the like can be mentioned.

Among the phenolic antioxidants, 3,9-bis [2- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy]-in terms of heat resistance and heat discoloration prevention. 1,1-dimethylethoxy] -2,4,8,10-tetraoxaspiro [5.5] undecane, 1,3,5-trimethyl-2,4,6-tris (3', 5'-di- t-butyl-4-hydroxybenzyl) benzene, pentaerythrityl tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], triethylene glycol-bis [3- (3-t) -Butyl-5-methyl-4-hydroxyphenyl) propionate], 4,4'-thiobis (6-t-butyl-3-methylphenol), tris- (3,5-di-t-butyl-4-hydroxy) Benzyl) -isocyanurate, 1,3,5-tris (4-t-butyl-3-hydroxy-2,6-dimethylbenzyl) -isocyanurate, 1,6-hexanediol-bis [3- (3,5) -Di-t-butyl-4-hydroxyphenyl) propionate], 2,2-thio-diethylenebis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], N, N'- Hexamethylenebis (3,5-di-t-butyl-4-hydroxy-hydrocinnamamide), 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl-) 4-Hydroxybenzyl) benzene and 2,4-bis [(octylthio) methyl] -O-cresol are preferred.

Examples of commercially available phenolic antioxidants include Irganox 1010 (manufactured by BASF) and ADK STAB AO-80 (manufactured by ADEKA).

<Color filter>
The present invention also provides a color filter produced of the photosensitive resin composition.

When applied to an image display device, the color filter of the present invention can realize more excellent light efficiency by emitting light from a light source of the display device. Further, since light having a hue is emitted, the color reproducibility is more excellent, and since light is emitted in all directions by photoluminescence, the viewing angle is improved and the luminance characteristic is excellent.

The color filter includes a substrate and a pattern layer formed on the upper portion of the substrate.

The substrate can be the substrate of the color filter itself or a portion where the color filter is located in a display device or the like, and is not particularly limited. The substrate can be glass, silicon (Si), silicon oxide (SiOx) or a polymer substrate, and the polymer substrate can be made of polyethersulfone (PES), polycarbonate (PC) or the like. There can be.

The pattern layer can be a layer containing the photosensitive resin composition of the present invention, which is formed by applying the photosensitive resin composition and exposing, developing and thermosetting the photosensitive resin composition in a predetermined pattern.

The pattern layer formed of the photosensitive resin composition may include a red pattern layer containing red quantum dot particles, a green pattern layer containing green quantum dot particles, and a blue pattern layer containing blue quantum dot particles. it can. When irradiated with light, the red pattern layer emits red light, the green pattern layer emits green light, and the blue pattern layer emits blue light.

In such a case, the emitted light of the light source at the time of application to the image display device is not particularly limited, but in terms of better brightness and color reproducibility, a light source that emits blue light is preferably used. be able to.

According to another embodiment of the present invention, the pattern layer includes a red pattern layer, a green pattern layer, and a transparent pattern layer containing no quantum dot particles. In this case, as the light source of the image display device including this, a light source that emits blue light can be used. At this time, the red pattern layer emits red light, the green pattern layer emits green light, and the transparent pattern layer transmits blue light as it is and shows blue.

The color filter including the substrate and the pattern layer as described above can further include a partition wall formed between each pattern, and may further include a black matrix. Further, a protective film formed on the upper part of the pattern layer of the color filter can be further included.

<Image display device>
The present invention also provides an image display device including the color filter.

The color filter of the present invention can be applied not only to a normal liquid crystal display device but also to various image display devices such as an electroluminescence display device, a plasma display device, and a field emission display device.

The image display device of the present invention can include a color filter including a red pattern layer containing red quantum dot particles, a green pattern layer containing green quantum dot particles, and a blue pattern layer containing blue quantum dot particles. In this case, the emitted light of the light source at the time of application to the image display device is not particularly limited, but in terms of better color reproducibility, a light source that emits blue light can be preferably used.

According to another embodiment of the present invention, the image display device of the present invention can include a color filter including a red pattern layer, a green pattern layer, and a transparent pattern layer containing no quantum dot particles.

At this time, as the light source, a light source that emits blue light can be used. In this case, the red quantum dot particles emit red light, the green quantum dot particles emit green light, and the transparent pattern layer shows blue through the blue light as it is.

Since the image display device of the present invention has excellent light efficiency, it exhibits high brightness, has excellent color reproducibility, and has a wide viewing angle.

Hereinafter, preferred examples will be presented to aid understanding of the present invention. However, this is merely a preferred embodiment of the present invention and does not limit the scope of the present invention, and any equal changes and additions made based on the description and drawings of the present invention are made in the present invention. It shall be included in the claims of the invention.

Production example 1. Synthesis of green quantum dot particles A-1 of photoluminescence of CdSe (core) / ZnS (shell) structure CdO (0.4 mmol), zinc acetate (4 mmol), oleic acid (5.5 mL) ) Was placed in a reactor together with 1-octadecene (20 mL) and heated to 150 ° C. for reaction. Subsequently, the reaction was allowed to stand under vacuum at 100 mTorr for 20 minutes in order to remove the acetic acid produced by the substitution of zinc with oleic acid.

Then, heat of 310 ° C. was applied to obtain a transparent mixture. Then, after maintaining this at 310 ° C. for 20 minutes, a Se and S solution prepared by dissolving 0.4 mmol of Se powder and 2.3 mmol of S powder in 3 mL of trioctylphosphine was added to cadmium acetate (Cd (Cd). It was rapidly injected into a reactor containing OAc) ₂ ) and zinc acetate (Zn (OAc) ₂ ) solutions.

The resulting mixture was grown at 310 ° C. for 5 minutes and then growth was interrupted using an ice bath. Then, it was precipitated with ethanol and quantum dots were separated using a centrifuge, and excess impurities were washed with chloroform (chloroform) and ethanol. By doing so, the quantum dot particles (A) having a CdSe (core) / ZnS (shell) structure in which particles having a sum of the core particle size and the shell thickness of 3 to 5 nm, which are stabilized by oleic acid, are distributed. Got

Production example 2. Prepare a flask equipped with an alkali-soluble resin synthetic stirrer, a thermometer reflux condenser, a dropping funnel and a nitrogen introduction tube, and prepare 45 parts by weight of N-benzylmaleimide, 45 parts by weight of methacrylic acid, 10 parts by weight of tricyclodecyl methacrylate, 4 parts by weight of t-butylperoxy-2-ethylhexanoate and 40 parts by weight of propylene glycol monomethyl ether acetate (hereinafter, PGMEA) were added. Then, the monomer dropping funnel was prepared by stirring and mixing, and 6 parts by weight of n-dodecanethiol and 24 parts by weight of PGMEA were added and mixed by stirring to prepare a chain transfer agent dropping funnel. After that, 395 parts by weight of PGMEA was introduced into the flask, the atmosphere in the flask was changed from air to nitrogen, and then the temperature of the flask was raised to 90 ° C. with stirring.

Then, dropping of the monomer and the chain transfer agent was started from the dropping funnel. The dropping proceeded for 2 hours each while maintaining 90 ° C., and after 1 hour, the temperature was raised to 110 ° C. and maintained for 3 hours. Then, a gas introduction pipe was introduced, and bubbling of the oxygen / nitrogen = 5/95 (v / v) mixed gas was started. Then, 10 parts by weight of glycidyl methacrylate and 0.4 parts by weight of 2,2'-methylenebis (4-methyl-6-t-butylphenol) and 0.8 parts by weight of triethylamine were put into the flask, and the temperature was 110 ° C. for 8 hours. It was reacted. Then, while cooling to room temperature, an alkali-soluble resin having a solid content of 29.1% by weight, a weight average molecular weight of 32,000, and an acid value of 114 mgKOH / g was obtained.

Examples and Comparative Examples
(1) Production of Photosensitive Resin Composition The composition (part by weight) shown in Table 1 below is added, diluted with propylene glycol monomethyl ether acetate so that the solid content becomes 20% by weight, and then stirred. A photosensitive resin composition was produced.

(2) Manufacture of color filter After applying the photosensitive resin compositions of Examples and Comparative Examples on a glass substrate by a spin coating method, the thin film is placed on a heating plate and maintained at a temperature of 100 ° C. for 3 minutes to form a thin film. Formed. A test photomask having a 20 mm × 20 mm regular quadrangular transmission pattern and a line / space pattern of 1 to 100 μm was placed on the thin film, and ultraviolet rays were irradiated with a distance of 100 μm from the test photomask.

At this time, the light source of the ultraviolet rays is an ultra-high pressure mercury lamp (USH-250D) manufactured by Ushio, Inc., which irradiates light with an exposure amount (365 nm) of 200 mJ / cm ^{2 in} an atmospheric atmosphere, and the optical filter is used. I didn't use it. Then, the thin film was immersed in a KOH aqueous solution having a pH of 10.5 for 80 seconds for development.

After washing with distilled water, it was dried by blowing nitrogen gas and heated in an oven at 150 ° C. for 10 minutes to produce a color filter. The thickness of the produced color pattern was 3.0 μm.

Experimental example
1. 1. Emission Intensity Measurement In the color filters produced with the compositions of the above-mentioned Examples and Comparative Examples, a 20 mm × 20 mm pattern portion is irradiated with light by a 365 nm Tube type 4W UV irradiator (VL-4LC, VILBERLOURMAT), and a photo The intensity of light in the wavelength (550 nm) region emitted by photoluminescence was measured by spectrum meters (Ocean Optics) and is shown in Table 2 and FIG. 1 below.

It can be judged that the stronger the measured light intensity, the more excellent photoluminescence characteristics are exhibited.

In relation to the maintenance rate of luminescence intensity, hard bake was advanced at 200 ° C. for 60 minutes, and the luminescence intensity before and after the hard bake were measured respectively to confirm the level at which the luminous efficiency was maintained. .. The results are shown in Table 2 and FIG. 1 below.

2. Pattern characteristics In order to confirm the presence or absence of pattern peeling, measurement was performed at a magnification of 50 using an optical microscope (ECLIPSE LV100POL). The results are shown in Table 2 below.

With reference to Table 2 above, it was confirmed that the examples included in the scope of the present invention had excellent luminescence characteristics as compared with Comparative Example 1.

Comparing the results of Comparative Examples 1, 2, 3 and Examples 1, 6 and 7, the higher the amount of the antioxidant, the higher the intensity, and the higher the emission intensity even after hard baking. I was able to confirm that it would be maintained.

With reference to Comparative Example 2 and Comparative Example 3, when the content of the antioxidant was less than 0.1%, the effect of maintaining the luminous intensity was inadequate. Further, when the content exceeds 10%, the luminosity of light emission is maintained high, but the peeling of the pixel pattern can be confirmed after the development.

Claims (14)

A photosensitive resin composition for forming a color pattern that does not contain dyes and pigments contained in a color filter.
Contains photoluminescent quantum dot particles, photopolymerizable compounds, photopolymerization initiators, alkali-soluble resins, solvents and antioxidants.
The alkali-soluble resin is polymerized by containing an ethylenically unsaturated monomer having a carboxy group and an N-substituted maleimide-based compound.
The N-substituted maleimide-based compounds include N-cyclohexylmaleimide, N-benzylmaleimide, N-phenylmaleimide, No-hydroxyphenylmaleimide, Nm-hydroxyphenylmaleimide, Np-hydroxyphenylmaleimide, and N-. From the group consisting of o-methylphenylmaleimide, Nm-methylphenylmaleimide, Np-methylphenylmaleimide, NO-methoxyphenylmaleimide, Nm-methoxyphenylmaleimide, and Np-methoxyphenylmaleimide. Including at least one selected
The photosensitive resin composition is characterized in that the antioxidant is contained in an amount of 0.1 to 10% by weight based on the total solid content of the composition. The photoluminescent quantum dot has a core-shell dual structure and has a core-shell dual structure.
The core is selected from the group consisting of CdSe, CdS, ZnS, ZnSe, ZnTe, CdTe, CdSeTe, CdZnS, PbSe, AgInZnS, HgS, HgSe, HgTe, GaN, GaP, GaAs, InP, InAs and ZnO. That's it,
The photosensitive resin composition according to claim 1, wherein the shell is one or more selected from the group consisting of CdSe, ZnSe, ZnS, ZnTe, CdTe, PbS, TiO, SrSe and HgSe. The photosensitive resin composition according to claim 1 or 2, wherein the particles of the photoluminescent quantum dots are red quantum dot particles, green quantum dot particles, or blue quantum dot particles. The particles of the photoluminescence quantum dot are composed of a group II-VI semiconductor compound; a group III-V semiconductor compound; a group IV-VI semiconductor compound; a group IV element or a compound containing the same; or a combination thereof. The photosensitive resin composition according to any one of claims 1 to 3. The photosensitive resin composition according to any one of claims 1 to 4, wherein the antioxidant contains at least one selected from the group consisting of phosphorus-based, sulfur-based and phenol-based antioxidants. .. The phosphorus-based antioxidant is 3,9-bis (2,6-di-tert-butyl-4-methylphenoxy) -2,4,8,10-tetraoxa-3,9-diphosphaspiro [5.5]. Undecane, diisodecylpentaerythritol diphosphite, bis (2,4-di-t-butylphenyl) pentaerythritol diphosphite, 2,2'-methylenebis (4,6-di-t-butyl-1-phenyloxy) (2-Ethylhexyloxy) phosphorus, 6- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propoxy] -2,4,8,10-tetra-t-butyldibenz [d, f] [1,3,2] Dioxaphosfepine, Triphenylphosphite, Diphenylisodecylphosphite, Phenyldiisodecylphosphite, 4,4'-butylidene-bis (3-methyl-6-t-butylphenylditridecyl) ) Phosphite, octadecylphosphite, tris (nonylphenyl) phosphite, 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10- (3,5-di-t-butyl-4) -Hydroxybenzyl) -9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 10-decyloxy-9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, tris (2,4-di-t-butylphenyl) phosphite, cyclic neopentanetetraylbis (2,4-di-t-butylphenyl) phosphite, cyclic neopentanetetraylbis (2,6-di) -T-butylphenyl) phosphite, 2,2-methylenebis (4,6-di-t-butylphenyl) octylphosphite, tris (2,4-di-t-butylphenyl) phosphite, tetrakis (2, 4-Di-t-butylphenyl) [1,1-biphenyl] -4,4'-diylbisphosphonite, bis [2,4-bis (1,1-dimethylethyl) -6-methylphenyl] ethyl ester The photosensitive resin composition according to claim 5, wherein the photosensitive resin composition is one or more selected from the group consisting of phosphonic acid and phosphonic acid. The sulfur-based antioxidants are 2,2-bis ({[3- (dodecylthio) propionyl] oxy} methyl) -1,3-propanediyl-bis [3- (dodecylthio) propionate], 2-mercaptobenzimidazole. , Dilauryl-3,3'-thiodipropionate, dimyristyl-3,3'-thiodipropionate, distearyl-3,3'-thiodipropionate, pentaerythrityl-tetrakis (3-laurylthiopropio) The photosensitive resin composition according to claim 5 or 6, wherein the photosensitive resin composition is one or more selected from the group consisting of nate) and 2-mercaptobenzimidazole. The phenolic antioxidant is 3,9-bis [2- [3- (3-t-butyl-4-hydroxy-5-methylphenyl) propionyloxy] -1,1-dimethylethoxy] -2,4. , 8,10-Tetraoxaspiro [5.5] undecane, pentaerythrityl tetrakis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], 1,3,5-trimethyl- 2,4,6-Tris (3', 5'-di-t-butyl-4-hydroxybenzyl) benzene, triethylene glycol-bis [3- (3-t-butyl-5-methyl-4-hydroxyphenyl) ) Propionate], 4,4'-thiobis (6-t-butyl-3-methylphenol), tris- (3,5-di-t-butyl-4-hydroxybenzyl) -isocyanurate, 1,3,5 -Tris (4-t-butyl-3-hydroxy-2,6-dimethylbenzyl) -isocyanurate, 1,6-hexanediol-bis [3- (3,5-di-t-butyl-4-hydroxyphenyl) ) Propionate], 2,2-thio-diethylenebis [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], N, N'-hexamethylenebis (3,5-di-t) -Butyl-4-hydroxy-hydrocinnamamide), 1,3,5-trimethyl-2,4,6-tris (3,5-di-t-butyl-4-hydroxybenzyl) benzene, 2,4- Bis [(octylthio) methyl] -O-cresol, 1,6-hexanediol-bis- [3- (3,5-di-t-butyl-4-hydroxyphenyl) propionate], octadecyl- [3- (3) , 5-di-t-butyl-4-hydroxyphenyl) propionate, 2,2'-methylenebis (4-methyl-6-t-butylphenol), 4,4'-butylidene-bis (3-methyl-6-t) -Butylphenol), 1,1,3-tris (2-methyl-4-hydroxy-5-t-butylphenyl) butane, 1,3,5-tris (4-hydroxybenzyl) benzene and tetrakis [methylene-3-3- (3,5'-di-t-butyl-4'-hydroxyphenylpropionate)] The invention according to any one of claims 5 to 7, wherein the mixture is one or more selected from the group consisting of methane. Photosensitive resin composition. During the total solids weight of said composition, said particles of said photoluminescence quantum dots, 3 to 80 wt%, the photopolymerizable compound is 5 to 70 wt%, the photopolymerization initiator, 0.1 The photosensitive resin composition according to any one of claims 1 to 8, wherein the alkali-soluble resin is contained in an amount of about 20% by weight and 5 to 80% by weight. The photosensitive resin composition according to any one of claims 1 to 9, wherein the solvent is contained in an amount of 60 to 90% by weight based on the total weight of the composition. A color filter produced by the photosensitive resin composition according to any one of claims 1 to 10. The color according to claim 11, wherein the color filter includes a red pattern layer containing red quantum dot particles, a green pattern layer containing green quantum dot particles, and a transparent pattern layer not containing quantum dot particles. filter. An image display device comprising the color filter according to claim 11 or 12. The image display device includes a light source that emits blue light and
The thirteenth aspect of claim 13, wherein the color filter includes the red pattern layer containing the red quantum dot particles, the green pattern layer containing the green quantum dot particles, and the transparent pattern layer not containing the quantum dot particles. Image display device.

Images