TWI761701B - Colorant composition, photoresist, color filter and display device - Google Patents

Abstract

This specification provides a colorant composition, a photoresist, a color filter and a display device. The colorant composition comprises a polymer; a binder resin comprising a structure represented by Chemical Formula 1; a polyfunctional monomer; a photoinitiator; and a solvent. In Chemical Formula 1, the definition of each substituents is the same as in the detailed description.

[Chemical Formula 1]

Description

Colorant composition, photoresist, color filter and display device set

This application claims the benefit of the filing date of Korean Patent Application No. 10-2018-0105447 filed with the Korea Intellectual Property Office on September 4, 2018, the entire contents of which are incorporated in this specification.

This specification relates to a colorant composition, a photoresist, a color filter, and a display device.

Currently, in order to realize a color filter, a pigment dispersion method using a pigment as a colorant is generally applied. However, in the case of a pigment dispersion liquid, the pigment exists in the state of particles and not only scatters light, but also rapidly increases the surface area of the pigment due to the miniaturization of the pigment, resulting in the deterioration of the dispersion stability and the generation of non-uniform pigment particles. Therefore, in order to achieve the high brightness, high contrast, and high resolution recently required, the use of dyes as colorants instead of pigments has recently been studied.

Generally, dyes have the advantage of high transmittance compared to pigments. However, it has the disadvantage of insufficient heat resistance compared with pigments. In addition, compared with existing pigments, organic The solubility of the solvent is good, so it has the disadvantage of insufficient chemical resistance.

[Prior Art Literature]

[Patent Literature]

[Patent Document 1] Japanese Laid-Open Document No. 9-87534

This specification provides a colorant composition, a photoresist, a color filter, and a display device.

An embodiment of the present specification provides a colorant composition comprising: a polymer including a triarylmethane dye monomer and a (meth)acrylic monomer; a binder resin including a structure represented by the following Chemical Formula 1; a polyfunctional monomer; photoinitiator; and solvent.

意指與其他單體或鍵結部連接的部分，X'為O或NH， L1及L2彼此相同或不同，分別獨立地為直接鍵結、經取代或未經取代的伸烷基、-C(=O)-、或者-L3-O(C=O)-，L3為經取代或未經取代的伸烷基，R1至R3彼此相同或不同，分別獨立地為氫、羥基、或者經取代或未經取代的烷基，r2為0至4的整數，在r2為2或大於2的情況下，R2彼此相同或不同，r3為0至5的整數，在r3為2或大於2的情況下，R3彼此相同或不同。 In the chemical formula 1,

Means a moiety connected to other monomers or linkages, X' is O or NH, L1 and L2 are the same or different from each other, and are each independently a direct bond, substituted or unsubstituted alkylene, -C (=O)-, or -L3-O(C=O)-, L3 is a substituted or unsubstituted alkylene, R1 to R3 are the same or different from each other, and are independently hydrogen, hydroxyl, or substituted or unsubstituted alkyl, r2 is an integer from 0 to 4, where r2 is 2 or greater, R2 is the same or different from each other, r3 is an integer from 0 to 5, where r3 is 2 or greater Below, R3 are the same or different from each other.

An embodiment of the present specification provides a photoresist prepared using the colorant composition.

An embodiment of the present specification provides a color filter including the photoresist.

An embodiment of the present specification provides a display device including the color filter.

When producing a color filter using the colorant composition according to one embodiment of the present specification, by using a dye instead of a pigment, brightness, contrast, and resolution can be improved.

In addition, the coloring agent composition according to one embodiment of the present specification contains the binder resin containing the structure represented by Chemical Formula 1, and has an advantage of being excellent in chemical resistance characteristics and heat resistance.

In this specification, when a certain member is described as being "on" another member, the case includes not only the case where a certain member is in contact with the other member, but also the case where another member exists between the two members.

In this specification, when it is described that a part "includes" a certain component, unless otherwise stated, this does not mean that other components are not excluded, and other components may be further included.

意指與其他單體、其他取代基或 鍵結部連接的部分。 In this manual,

Means moieties linked to other monomers, other substituents or linkages.

意指與其他鍵結部連接的部分。 In this manual,

Means a part that is connected to other bond parts.

In this specification, the bonding portion means a portion connecting chemical formulas or chemical structures.

In the present specification, the "connection" of the connected moiety may mean that atoms are connected by a single bond or a double bond.

In this specification, a "monomer" is a monomer or a unit, and means a unit molecule or a repeating structure that forms a polymer.

An embodiment of this specification provides a colorant composition, comprising: A polymer including a triarylmethane dye monomer and a (meth)acrylic monomer; a binder resin including a structure represented by the following Chemical Formula 1; a multifunctional monomer; a photoinitiator; and a solvent.

In order to realize a color filter, a pigment dispersion method using a pigment as a colorant is generally applied. However, in the case of a pigment dispersion liquid, the pigment exists in a particle state and not only scatters light, but also sharply increases the surface area of the pigment due to the miniaturization of the pigment, which reduces the dispersion stability and generates non-uniform pigment particles.

On the contrary, the coloring agent composition according to one embodiment of the present specification can improve the problem of lowering of dispersion stability when applying a pigment by including a triarylmethane dye monomer. Accordingly, the present invention has the advantage of improving brightness, contrast, and resolution when the triarylmethane dye monomer is contained in the colorant composition and a color filter is prepared using the colorant composition.

Also, since color filters are heavily exposed to solvents during the manufacturing process, chemical resistance is important. In relation to this, the colorant composition of the present invention includes a binder resin containing the structure represented by the chemical formula 1, so that the structure represented by the chemical formula 1 promotes a radical (Radical) reaction during the exposure process, The bonding of the polymer, the binder resin, and the multifunctional monomer in the coloring composition can be better performed, and the degree of hardening of the film can be improved. The heat resistance and chemical resistance of the color filter produced using the coloring agent composition of this specification are improved as the hardening degree of a film becomes high.

As described above, in the case where the colorant composition of the present invention contains the binder resin containing the structure represented by the chemical formula 1, by applying the triarylmethane Alkane dye monomers can improve the problem of decreased heat resistance and chemical resistance.

Specifically, the structure represented by the chemical formula 1 is preferably, but not limited to, a benzophenone methacrylate (BPMA) monomer.

Examples of substituents of the compound represented by the chemical formula 1 are described below, but are not limited thereto.

In this specification, the term "substituted or unsubstituted" means a group selected from the group consisting of deuterium, halogen, nitrile, nitro, hydroxyl (-OH), carbonyl, ester, carboxyl (-COOH), acyl Imino, amide, anionic, alkoxy, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aralkyl, phosphino, sulfonate, amine, aryl, heteroaryl One or more substituents in the group of a group, a silicon group, a boron group, an acryl group, an acrylate group, an ether group, a heterocyclic group containing one or more of N, O, S, or P atoms, and an anionic group substituted or without any substituent.

In the present specification, as examples of the halogen group, there are fluorine, chlorine, bromine or iodine.

In this specification, the alkyl group may be a straight chain or a branched chain, and the number of carbon atoms is not particularly limited, and the number of carbon atoms in the alkyl group may be 1 to 30. According to yet another embodiment, the number of carbons in the alkyl group is 1 to 20. According to yet another embodiment, the number of carbons in the alkyl group is 1 to 10. Specific examples of the alkyl group include methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, n-hexyl, n-heptyl, and n-octyl etc., but not limited to this. In the present specification, the cycloalkyl group is not particularly limited, but preferably has 3 to 30 carbon atoms, and is particularly preferably a cyclopentyl group and a cyclohexyl group, but is not limited thereto.

In this specification, an alkylene group means a group having two bonding positions in an alkane. For the alkane, the description for the above-mentioned alkyl group applies. The alkylene group may be straight chain, branched chain or cyclic chain. The number of carbon atoms in the alkylene group is not particularly limited, and for example, the number of carbon atoms may be 1 to 30. In addition, the number of carbons may be 1 to 20, and the number of carbons may be 1 to 10.

In this specification, the cycloalkyl group is not particularly limited, but according to one embodiment, the number of carbon atoms in the cycloalkyl group is 3 to 30. According to yet another embodiment, the carbon number of the cycloalkyl group is 3 to 20. According to yet another embodiment, the carbon number of the cycloalkyl group is 3 to 6. Specifically, although there are cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclooctyl, etc., it is not limited to these.

基、芴基等，但不限定於此。 In this specification, the aryl group is not particularly limited, but preferably has a carbon number of 6 to 60, and may be a monocyclic aryl group or a polycyclic aryl group. According to an embodiment, the carbon number of the aryl group is 6 to 30. According to an embodiment, the carbon number of the aryl group is 6 to 20. As the monocyclic aryl group, the aryl group may be phenyl, biphenyl, triphenyl, etc., but is not limited thereto. As the polycyclic aryl group, there may be naphthyl, anthracenyl, indenyl, phenanthryl, pyrenyl, perylene, triphenyl,

group, fluorene group, etc., but not limited to this.

In this specification, the heterocyclic group is a heterocyclic group containing O, N or S as a hetero atom, and the number of carbons is not particularly limited, but the number of carbons is 2 to 30, specifically, the number of carbons is 2 to 20. As examples of the heterocyclic group, there are thienyl, furyl, pyrrolyl, imidazolyl, thiazolyl, oxazolyl, oxadiazolyl, triazolyl, pyridyl, bipyridyl, triazinyl, acridinyl (acridyl), pyridazinyl, quinolyl, isoquinoline base, indolyl, carbazolyl, benzoxazolyl, benzimidazolyl, benzothiazolyl, benzocarbazolyl, benzothienyl, dibenzothienyl, benzofuranyl and diphenyl and furanyl, etc., but not limited thereto.

In this specification, the description about the above-mentioned heterocyclic group is applicable except that the heteroaryl group is aromatic.

In the present specification, the description of the aryl group and/or the description of the heterocyclic group can be applied to the "aryl group" of the so-called "triarylmethane dye".

In this specification, the alkoxy group may be a straight chain or a branched chain, and the number of carbons is not particularly limited, but may be 1 to 30, specifically 1 to 20, and more specifically 1 to 20. 10.

In this specification, an anionic group has a chemical bond with the structure of the triarylmethane dye monomer, and the chemical bond may mean an ionic bond. The anionic group is not particularly limited, for example, it can be applied to US Patent No. 7,939,644, Japanese Patent Laid-Open No. 2006-003080, Japanese Patent Laid-Open No. 2006-001917, Japanese Patent Laid-Open No. 2005-159926, Japanese Patent Laid-Open No. 2005-159926 Laid-Open No. 2007-7028897, Japanese Laid-Open No. 2005-071680, Korean Application Laid-Open No. 2007-7000693, Japanese Laid-Open No. 2005-111696, Japanese Laid-Open No. 2008-249663, and Japanese Laid-Open No. 2014- Anions described in 199436.

Specific examples of the anionic group include trifluoromethanesulfonate anion, bis(trifluoromethylsulfonyl)imide anion, bistrifluoromethanesulfonimide anion, and bisperfluoroethylsulfonimide anion , tetraphenyl borate anion, tetrakis (4-fluorophenyl) borate, tetrakis (pentafluorophenyl) borate, trifluoromethanesulfonyl methide, SO ₃ ^- , CO ₂ ^- , SO ₂ N ^- SO ₂ CF ₃ , SO ₂ N ^- SO ₂ CF ₂ CF ₃ , halogen groups such as fluorine group, iodine group, chlorine group, etc., but not limited thereto.

In the present specification, the anionic group may have an anion by itself, or may exist in the form of a complex compound together with other cations. Therefore, the sum of the electric charges of the whole molecule of the compound of the present invention may vary depending on the number of substituted anionic groups. Since the compound of the present invention has a cation in one amine group, the sum of the charges of the entire molecule can have a value from an anion to 0 from a value obtained by subtracting 1 from the number of substituted anionic groups.

In this specification, "(meth)acrylic acid" means at least one selected from the group consisting of acrylic acid and methacrylic acid. The expression "methacrylic acid" also has the same meaning.

In this specification, (meth)acrylic acid or methacrylic acid may be represented by methacrylic acid.

In one embodiment of this specification, the meaning of the "polymer containing a triarylmethane dye monomer and a (meth)acrylic monomer" means the triarylmethane dye monomer and the (methyl) Acrylic monomers are comonomers covalently bonded within the polymer.

An embodiment of the present specification provides a colorant composition comprising: a polymer including a triarylmethane dye monomer and a (meth)acrylic monomer; a binder resin including a structure represented by the following Chemical Formula 1; a polyfunctional monomer; photoinitiator; and solvent.

意指與其他單體或鍵結部連接的部分， X'為O或NH，L1及L2彼此相同或不同，分別獨立地為直接鍵結、經取代或未經取代的伸烷基、-C(=O)-、或-L3-O(C=O)-，L3為經取代或未經取代的伸烷基，R1至R3彼此相同或不同，分別獨立地為氫、羥基、或經取代或未經取代的烷基，r2為0至4的整數，在r2為2或大於2的情況下，R2彼此相同或不同，r3為0至5的整數，在r3為2或大於2的情況下，R3彼此相同或不同。 In the chemical formula 1,

Means a moiety connected to other monomers or linkages, X' is O or NH, L1 and L2 are the same or different from each other, and are each independently a direct bond, substituted or unsubstituted alkylene, -C (=O)-, or -L3-O(C=O)-, L3 is a substituted or unsubstituted alkylene, R1 to R3 are the same or different from each other, and are independently hydrogen, hydroxyl, or substituted or unsubstituted alkyl, r2 is an integer from 0 to 4, where r2 is 2 or greater, R2 is the same or different from each other, r3 is an integer from 0 to 5, where r3 is 2 or greater Below, R3 are the same or different from each other.

In one embodiment of this specification, X' is O.

In one embodiment of this specification, X' is NH.

In one embodiment of the present specification, L1 is a direct bond, a substituted or unsubstituted alkylene, or -C(=O)-.

In one embodiment of this specification, L1 is a direct bond, and the number of carbons is 1 to 30 substituted or unsubstituted alkylene, or -C(=O)-.

In one embodiment of the present specification, L1 is a direct bond, a substituted or unsubstituted alkylene having 1 to 20 carbon atoms, or -C(=O)-.

In one embodiment of the present specification, L1 is a direct bond, a substituted or unsubstituted alkylene having 1 to 10 carbon atoms, or -C(=O)-.

In one embodiment of this specification, L1 is a direct bond.

In one embodiment of the present specification, L1 is a substituted or unsubstituted methylene group, a substituted or unsubstituted ethylidene group, or a substituted or unsubstituted propylidene group.

In one embodiment of this specification, L1 is a methylene group, an ethylidene group, or a propylidene group.

In one embodiment of this specification, L1 is -C(=O)-.

In one embodiment of this specification, L2 is a direct bond, -C(=O)-, or -L3-O(C=O)-.

In one embodiment of this specification, L2 is a direct bond.

In one embodiment of this specification, L2 is -C(=O)-.

In one embodiment of this specification, L2 is -L3-O(C=O)-.

In one embodiment of the present specification, L3 is a substituted or unsubstituted alkylene group having 1 to 30 carbon atoms.

In one embodiment of the present specification, L3 is a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms.

In an embodiment of the present specification, L3 is a carbon number of 1 to 10. Substituted or unsubstituted alkylene.

In one embodiment of the present specification, L3 is a substituted or unsubstituted methylene group.

In one embodiment of this specification, L3 is a methylene group.

In one embodiment of the present specification, R1 to R3 are the same or different from each other, and are independently hydrogen, hydroxyl, and substituted or unsubstituted alkyl groups having 1 to 30 carbon atoms.

In one embodiment of the present specification, R1 to R3 are the same or different from each other, and are independently hydrogen, hydroxyl, and substituted or unsubstituted alkyl groups having 1 to 20 carbon atoms.

In one embodiment of the present specification, R1 to R3 are the same or different from each other, and are independently hydrogen, hydroxyl, and substituted or unsubstituted alkyl groups having 1 to 10 carbon atoms.

In one embodiment of the present specification, R1 to R3 are the same or different from each other, and are each independently hydrogen, hydroxyl, substituted or unsubstituted methyl.

In one embodiment of the present specification, R1 is hydrogen or methyl.

In one embodiment of the present specification, R2 is hydrogen.

In one embodiment of the present specification, R3 is hydrogen, a hydroxyl group, or a methyl group substituted with an amino group.

According to an embodiment of the present specification, the chemical formula 1 can be represented by the following chemical formula 1-1.

[Chemical formula 1-1]

意指與其他單體或鍵結部連接的部分，X'、L1、L2、R1至R3、r2及r3與在所述化學式1中定義的內容相同。 In the chemical formula 1-1,

Means a moiety linked to other monomers or linkages, X', L1, L2, R1 to R3, r2 and r3 are the same as those defined in the Chemical Formula 1.

In one embodiment of the present specification, the chemical formula 1 can be represented by any one of the following structures, but is not limited to this. The Chemical Formula 1 forms a moiety polymerized from any one of the following structures.

In one embodiment of the present specification, the triarylmethane dye monomer can be represented by the following chemical formula 2.

[Chemical formula 2]

In the Chemical Formula 2, R11 to R14 are the same or different from each other, and are each independently a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or substituted or unsubstituted alkoxy, X1 and X2 are the same or different from each other, each independently hydrogen, deuterium, halo, hydroxy, -COOH, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, x1 and x2 are integers from 0 to 4, In the case where x1 and x2 are respectively 2 or more, the structures within the parentheses are the same or different from each other, and A is represented by any one of the following chemical formula A-1 to the following chemical formula A-3,

[A-2]

意指與其他單體或鍵結部連接的部分，

意指與所述化學式2的A連接的部分， Z為N或CR，所述R為氫、或者經取代或未經取代的烷基，R4至R6彼此相同或不同，分別獨立地為氫、氘、或者經取代或未經取代的烷基，R15及R16彼此相同或不同，分別獨立地為氫、氘、經取代或未經取代的烷基、或者經取代或未經取代的芳基， X為陰離子性基，X3至X6彼此相同或不同，分別獨立地為氫、氘、鹵素基、羥基、-COOH、經取代或未經取代的烷氧基、經取代或未經取代的烷基、經取代或未經取代的環烷基、經取代或未經取代的芳基、或者經取代或未經取代的雜芳基，x3為0至3的整數，在x3為2或大於2的情況下，X3彼此相同或不同，x4為0至10的整數，在x4為2或大於2的情況下，X4彼此相同或不同，x5為0至4的整數，在x5為2或大於2的情況下，X5彼此相同或不同，x6為0至4的整數，在x6為2或大於2的情況下，X6彼此相同或不同，B為經取代或未經取代的芳基。 In the chemical formula A-1 to chemical formula A-3,

means a moiety linked to other monomers or linkages,

means a moiety connected to A of the Chemical Formula 2, Z is N or CR, the R is hydrogen, or a substituted or unsubstituted alkyl group, R4 to R6 are the same or different from each other, and are independently hydrogen, Deuterium, or substituted or unsubstituted alkyl, R15 and R16 being the same or different from each other, each independently hydrogen, deuterium, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl, X is an anionic group, X3 to X6 are the same or different from each other, and are each independently hydrogen, deuterium, halogen group, hydroxyl, -COOH, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl , substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, x3 is an integer from 0 to 3, where x3 is 2 or more In the case where X3 is the same or different from each other, x4 is an integer from 0 to 10, in the case where x4 is 2 or more, X4 is the same or different from each other, x5 is an integer from 0 to 4, and x5 is 2 or more than 2 In the case where X5 is the same or different from each other, x6 is an integer of 0 to 4, in the case where x6 is 2 or more, X6 is the same or different from each other, and B is a substituted or unsubstituted aryl group.

In one embodiment of the present specification, R11 to R14 are the same or different from each other, and are each independently a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.

In one embodiment of the present specification, R11 to R14 are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group having 1 to 30 carbons, or a substituted alkyl group having 6 to 30 carbons. or unsubstituted aryl.

In one embodiment of the present specification, R11 to R14 are the same or different from each other, and are each independently a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, or A substituted or unsubstituted aryl group having 6 to 20 carbon atoms.

In one embodiment of the present specification, R11 to R14 are the same as or different from each other, and are each independently a substituted or unsubstituted alkyl group having 1 to 10 carbons, or a substituted alkyl group having 6 to 12 carbons. or unsubstituted aryl.

In one embodiment of the present specification, R11 to R14 are the same or different from each other, and are independently substituted or unsubstituted methyl, substituted or unsubstituted ethyl, substituted or unsubstituted propyl , or substituted or unsubstituted phenyl.

In one embodiment of the present specification, R11 to R14 are the same or different from each other, and are each independently methyl, ethyl, ethyl substituted by alkoxy, isopropyl, n-propyl, phenyl, or methyl substituted phenyl.

In one embodiment of this specification, Z is N.

In one embodiment of the present specification, Z is CR.

In one embodiment of the present specification, R is hydrogen, or a substituted or unsubstituted alkyl group.

In one embodiment of the present specification, R is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms.

In one embodiment of the present specification, R is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.

In one embodiment of the present specification, R is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.

In one embodiment of the present specification, R is hydrogen.

In one embodiment of the present specification, R4 to R6 are the same or different from each other and each independently hydrogen, deuterium, or substituted or unsubstituted alkyl.

In one embodiment of the present specification, R4 to R6 are the same or different from each other, and are each independently hydrogen, deuterium, or a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms.

In one embodiment of the present specification, R4 to R6 are the same or different from each other, and are each independently hydrogen, deuterium, or a substituted or unsubstituted alkyl group having 1 to 20 carbons.

In one embodiment of the present specification, R4 to R6 are the same or different from each other, and are each independently hydrogen, deuterium, or a substituted or unsubstituted alkyl group having 1 to 10 carbons.

In one embodiment of the present specification, R4 to R6 are substituted or unsubstituted methyl groups.

In one embodiment of the present specification, R4 to R6 are methyl groups.

In one embodiment of the present specification, R15 and R16 are the same or different from each other, and are each independently hydrogen, deuterium, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl.

In one embodiment of the present specification, R15 and R16 are the same or different from each other, and are each independently hydrogen, deuterium, substituted or unsubstituted alkyl having 1 to 30 carbons, or 6 to 6 carbons. 30 of substituted or unsubstituted aryl.

In one embodiment of the present specification, R15 and R16 are the same or different from each other, and are each independently hydrogen, deuterium, substituted or unsubstituted alkyl having 1 to 20 carbons, or 6 to 6 carbons. 20 substituted or unsubstituted aryl.

In one embodiment of the present specification, R15 and R16 are the same or different from each other, and are each independently hydrogen, deuterium, substituted or unsubstituted alkyl having 1 to 10 carbons, or 6 to 6 carbons. The substituted or unsubstituted aryl of 12.

In one embodiment of the present specification, R15 is a substituted or unsubstituted ethyl group.

In one embodiment of this specification, R15 is an ethyl group.

In one embodiment of the present specification, R16 is a substituted or unsubstituted phenyl group.

In one embodiment of the present specification, R16 is a phenyl group substituted or unsubstituted with a halogen group.

In one embodiment of the present specification, R16 is a fluorine-substituted or unsubstituted phenyl group.

In one embodiment of the present specification, X may be a bistrifluoromethanesulfonimide anion.

In one embodiment of this specification, X1 and X2 are the same or different from each other, and are independently hydrogen, deuterium, halogen, hydroxyl, -COOH, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl.

In one embodiment of the present specification, X1 and X2 are the same or different from each other, and are each independently hydrogen, a halogen group, or a substituted or unsubstituted alkyl group.

In an embodiment of the present specification, X1 and X2 are the same or different from each other, respectively Each is independently hydrogen, a halogen group, or a substituted or unsubstituted alkyl group having 1 to 30 carbons.

In one embodiment of the present specification, X1 and X2 are the same or different from each other, and are each independently hydrogen, a halogen group, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.

In one embodiment of the present specification, X1 and X2 are the same or different from each other, and are each independently hydrogen, a halogen group, or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.

In one embodiment of the present specification, X1 and X2 are the same or different from each other, and are each independently hydrogen, a halogen group, or a substituted or unsubstituted methyl group.

In one embodiment of the present specification, X1 and X2 are the same or different from each other, and are each independently hydrogen, fluorine, chlorine, or methyl.

In one embodiment of this specification, X3 to X6 are the same or different from each other, and are independently hydrogen, deuterium, halogen, hydroxyl, -COOH, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl.

In one embodiment of the present specification, X3 to X6 are the same or different from each other, and are each independently hydrogen, -COOH, or a substituted or unsubstituted alkyl group.

In one embodiment of the present specification, X3 to X6 are the same or different from each other, and are each independently hydrogen, -COOH, or a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms.

In one embodiment of the present specification, X3 to X6 are the same or different from each other, and are each independently hydrogen, -COOH, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.

In one embodiment of the present specification, X3 to X6 are the same or different from each other, and are each independently hydrogen, -COOH, or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.

In one embodiment of the present specification, X3 to X6 are the same or different from each other, and are each independently hydrogen, -COOH, or a substituted or unsubstituted methyl group.

In one embodiment of the present specification, X3 to X6 are the same as or different from each other, and are each independently hydrogen, -COOH, or methyl.

In one embodiment of the present specification, B is a substituted or unsubstituted aryl group having 6 to 30 carbon atoms.

In one embodiment of the present specification, B is a substituted or unsubstituted aryl group having 6 to 20 carbon atoms.

In one embodiment of the present specification, B is a substituted or unsubstituted aryl group having 6 to 12 carbon atoms.

In one embodiment of the present specification, B is a substituted or unsubstituted phenyl group.

In one embodiment of the present specification, B is a phenyl group.

In one embodiment of the present specification, the chemical formula 2 can be represented by any one of the following chemical formula 2-1 to the following chemical formula 2-3.

[Chemical formula 2-1]

[Chemical formula 2-3]

In the Chemical Formulas 2-1 to 2-3, R11 to R16, R4 to R6, X1 to X6, x1 to x6, Z, X, and B are the same as those defined in the Chemical Formula 2.

In one embodiment of the present specification, the chemical formula 2-1 can be represented by the following chemical formula 2-1-1.

[Chemical formula 2-1-1]

In the Chemical Formula 2-1-1, R11 to R14, R4, X1 to X4, x1 to x4, Z and X are the same as those defined in the Chemical Formula 2.

In one embodiment of the present specification, the chemical formula 2-2 can be represented by the following chemical formula 2-2-1.

[Chemical formula 2-2-1]

In the Chemical Formula 2-2-1, R11 to R14, R5, X1, X2, X5, x1, x2, x5, X and B are the same as those defined in the Chemical Formula 2.

In one embodiment of the present specification, the chemical formula 2-3 can be represented by the following chemical formula 2-3-1.

In the Chemical Formula 2-3-1, R11 to R16, R6, X1, X2, X6, x1, x2, x6 and X are the same as those defined in the Chemical Formula 2.

In one embodiment of the present specification, the chemical formula 2 can be represented by any one of the following structures, but is not limited to this.

In the structure, X is the same as that defined in the Chemical Formula 2. Specifically, X is the same as that defined in the Chemical Formulas A-1 to A-3.

In this specification, the (meth)acrylic monomer may be represented by the following Chemical Formula A.

In the chemical formula A, T1 is hydrogen, -COOH, substituted or unsubstituted alkyl, or substituted or unsubstituted alkoxy, T2 is hydrogen, or substituted or unsubstituted alkyl , M is a direct bond, or a substituted or unsubstituted alkylene.

In one embodiment of the present specification, T1 is hydrogen, -COOH, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, or a carbon number of 1 to 30 substituted or unsubstituted alkoxy.

In one embodiment of this specification, T1 is hydrogen, -COOH, substituted or unsubstituted alkyl with 1 to 20 carbons, or substituted or unsubstituted with 1 to 20 carbons alkoxy.

In one embodiment of this specification, T1 is hydrogen, -COOH, substituted or unsubstituted alkyl with 1 to 10 carbons, or substituted or unsubstituted with 1 to 10 carbons alkoxy.

In one embodiment of the present specification, T1 may be hydrogen, -COOH, or any one of the following structures.

In one embodiment of the present specification, T2 is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms.

In one embodiment of the present specification, T2 is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.

In one embodiment of the present specification, T2 is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.

In one embodiment of the present specification, T2 is hydrogen, or a substituted or unsubstituted methyl group.

In one embodiment of the present specification, T2 is hydrogen or methyl.

In one embodiment of the present specification, M is a direct bond, or a carbon A substituted or unsubstituted alkylene having a number from 1 to 30.

In one embodiment of the present specification, M is a direct bond or a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms.

In one embodiment of the present specification, M is a direct bond or a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms.

In one embodiment of the present specification, M is a direct bond, or a substituted or unsubstituted ethylidene group.

In one embodiment of the present specification, M is a direct bond or an ethyl extension.

In one embodiment of the present specification, the structure represented by the chemical formula B may be represented by any of the following structures, but is not limited to this.

An embodiment of the present specification provides a colorant composition, wherein the weight ratio of the triarylmethane dye monomer to the acrylic monomer is 9:1 to 4:6.

The weight ratio is the same as the weight ratio of the monomers charged in the synthesis of the polymer. In the process of synthesizing the polymer containing monomers, since there is no refining process in the middle, the weight ratio of each monomer input is the weight ratio of each monomer contained in the polymer. Specifically, the weight ratio can be determined by measuring NMR A specific peak (peak) contained in the triarylmethane dye monomer and a specific peak (peak) contained in the acrylic monomer were compared by using Nuclear Magnetic Resonance (NMR) to calculate the ratio.

The polymer may be formed by the bonding of a triarylmethane-based dye monomer and an acrylic-based monomer containing an acid group. An acrylic monomer containing an acid group can be used in combination with an adhesive containing an epoxy monomer, and in this case, the acid group and the epoxy group are bonded to each other, and a strong color filter film can be formed. When the content of the acid group-containing acrylic monomer exceeds 60%, the content of the triarylmethane-based dye that exhibits color is small, and it is not only difficult to exhibit a sufficient color, but also when the epoxy resin that can be reacted is insufficient. However, there will be a problem that the color material is washed away by the developer. In addition, when the content of the acrylic monomer containing an acid group is less than 10%, the bond with the epoxy group is not sufficient, so that the surface roughness of the color filter film is not good, and the scattering of light conversely causes the Brightness drop problem. Therefore, the weight ratio of the triarylmethane dye monomer to the acid group-containing acrylic monomer is preferably 9:1 to 4:6, and more preferably may have a weight ratio of from 8:2 to 7:3.

In one embodiment of the present specification, the weight average molecular weight of the polymer is 5,000 g/mol to 50,000 g/mol.

The weight average molecular weight is one of the average molecular weights that are not uniform in molecular weight and used on the basis of the molecular weight of a certain macromolecular substance, and is calculated by using the weight percentage to determine the molecular weight of the component molecular species of the macromolecular compound having a molecular weight distribution. value obtained by averaging.

The weight average molecular weight can be determined by high performance liquid chromatography (High Performance Liquid Chromatography). Performance Liquid Chromatography, HPLC) analysis.

In one embodiment of the present specification, the number average molecular weight of the polymer may be 18 to 28. Preferably, the number average molecular weight may be 20 to 27.

The number average molecular weight means an average molecular weight obtained by averaging molecular weights of constituent molecular species of a high molecular compound having a molecular weight distribution by number percentage or molar percentage.

The number average molecular weight can be determined by High Performance Liquid Chromatography (HPLC) analysis.

In one embodiment of the present specification, the binder resin may further include any one or more of the structures represented by the following chemical formulas 4 to 6.

[Chemical formula 6]

In the Chemical Formulas 4 to 6, R41 to R44, R51, R52, and R61 to R63 are the same or different from each other, and are each independently hydrogen, substituted or unsubstituted alkyl, or substituted or unsubstituted Aryl, R64 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or A substituted or unsubstituted monocyclic or polycyclic cyclic group containing oxygen or nitrogen, Ar is a substituted or unsubstituted aryl group, Q is a direct bond, or substituted or unsubstituted In the alkylene group, r44 is an integer of 0 to 5, and in the case where r44 is 2 or more, R44 is the same or different from each other.

In one embodiment of the present specification, R41 to R44 are hydrogen.

In one embodiment of this specification, R51 and R52 are hydrogen.

In one embodiment of the present specification, R61 and R63 are the same or different from each other, and are each independently hydrogen, or a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms.

In one embodiment of this specification, R61 and R63 are the same or different from each other, Each independently is hydrogen, or a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms.

In one embodiment of the present specification, R61 and R63 are the same or different from each other, and are each independently hydrogen, or a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms.

In one embodiment of the present specification, R61 and R63 are the same or different from each other, and are each independently hydrogen, or a substituted or unsubstituted methyl group.

In one embodiment of the present specification, R61 and R63 are the same or different from each other, and are each independently hydrogen or methyl.

In one embodiment of this specification, R64 is hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkoxy, substituted or unsubstituted cycloalkyl, substituted or unsubstituted A substituted aryl group, or a substituted or unsubstituted monocyclic or polycyclic cyclic group containing oxygen or nitrogen.

In one embodiment of this specification, R64 is hydrogen, substituted or unsubstituted alkyl with 1 to 30 carbons, substituted or unsubstituted alkoxy with 1 to 30 carbons, substituted or unsubstituted cycloalkyl having 3 to 30 carbons, substituted or unsubstituted aryl having 6 to 30 carbons, or substituted or unsubstituted containing oxygen or nitrogen A monocyclic ring group or a polycyclic ring group.

In one embodiment of this specification, R64 is hydrogen, substituted or unsubstituted alkyl with 1 to 20 carbons, substituted or unsubstituted alkoxy with 1 to 20 carbons, A substituted or unsubstituted cycloalkyl group having 3 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 20 carbon atoms, or a substituted or unsubstituted cycloalkyl group containing oxygen or nitrogen Substituted or unsubstituted monocyclic or polycyclic cyclic groups.

In one embodiment of this specification, R64 is hydrogen, substituted or unsubstituted alkyl with 1 to 10 carbons, substituted or unsubstituted alkoxy with 1 to 10 carbons, substituted or unsubstituted cycloalkyl having 3 to 10 carbons, substituted or unsubstituted aryl having 6 to 12 carbons, or substituted or unsubstituted containing oxygen or nitrogen A monocyclic ring group or a polycyclic ring group.

In one embodiment of this specification, R64 is hydrogen, substituted or unsubstituted methyl, substituted or unsubstituted alkoxy with 1 to 5 carbons, substituted or unsubstituted ring Hexyl, substituted or unsubstituted phenyl, or substituted or unsubstituted monocyclic or polycyclic cyclyl.

In the definition of R64, the alkoxy group can be represented by the following structure, but is not limited thereto.

意指與所述化學式6的Q連接 的部分。 In the described structure,

means a moiety linked to Q of the Chemical Formula 6.

The substituted or unsubstituted monocyclic ring group or polycyclic ring group may be represented by any one of the following structures, but is not limited thereto.

In one embodiment of this specification, Q is a direct bond.

In one embodiment of the present specification, Q is a substituted or unsubstituted alkylene group having 1 to 30 carbon atoms.

In one embodiment of the present specification, Q is a substituted or unsubstituted alkylene group having 1 to 20 carbon atoms.

In one embodiment of the present specification, Q is a substituted or unsubstituted alkylene group having 1 to 10 carbon atoms.

In one embodiment of the present specification, Q is a substituted or unsubstituted methylene group.

In one embodiment of the present specification, Q is a methylene group.

In one embodiment of the present specification, the chemical formula 4 can be represented by the following structure, but is not limited to this.

In one embodiment of the present specification, the chemical formula 5 can be represented by the following structure, but it is not limited to this.

In one embodiment of the present specification, the chemical formula 6 can be represented by any one of the following structures, but is not limited to this.

According to an embodiment of the present specification, the binder resin may further include any one of the following structures.

An embodiment of the present specification provides a colorant composition, based on the total weight of the solid content in the colorant composition, the content of the polymer is 3% by weight to 50% by weight, and the content of the binder resin is 3% by weight to 50% by weight. The content is 5% to 40% by weight, the content of the multifunctional monomer is 5% to 40% by weight, and the content of the photoinitiator is 1% to 10% by weight.

When each component contained in the colorant composition satisfies the above-mentioned range, the polymer and the binder in the colorant composition of the present invention The resin and the multifunctional monomer can be bonded to each other by radical polymerization, so that a strong film can be formed.

The total weight of the solid content means the sum of the total weight of the components other than the solvent in the colorant composition. The solid content and the basis of the weight % based on the solid content of each component can be measured by ordinary analytical means used in the art, such as liquid chromatography or gas chromatography.

In one embodiment of the present specification, the colorant composition may further include at least one of a pigment and a dye.

For example, the colorant composition further includes one or more dyes, or more than one pigment, or further includes one or more dyes and more than one pigment.

The dyes and pigments can be selected from one or more of the following groups: metal-complex series compounds; azo (azo) series compounds; metal azo (metal azo) series compounds; quinophthalone series compounds; isoindoline series compounds; methine series compounds; phthalocyanine series compounds; metal phthalocyanine series compounds; porphyrins series compounds; metal porphyrin series compounds; tetra aza porphyrin series compounds; metal tetra aza porphyrin series compounds; cyanine series compounds; two Xanthene series compounds; Metal dipyrromethene series compounds; Boron dipyrromethene series compounds; Gold It belongs to the metal dipyrromethene series compounds; anthraquinone series compounds; diketopyrrolopyrrole series compounds; triarylmethane series compounds; and perylene series compounds.

Specifically, the pigment can be a phthalocyanine series compound, which can be B15:6, G7, G58 or G59.

Specifically, the dyes may be Xanthene series compounds, metal-complex series compounds or quinophthalone series compounds.

The polyfunctional monomer that imparts mechanical strength to the film may be any or more of unsaturated carboxylic acid esters, aromatic vinyls, unsaturated ethers, unsaturated imines, and acid anhydrides.

Specific examples of the unsaturated carboxylic acid esters include benzyl (meth)acrylate, methyl (meth)acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, (meth)acrylate base) dimethylaminoethyl acrylate, isobutyl (meth)acrylate, tert-butyl (meth)acrylate, cyclohexyl (meth)acrylate, isobornyl (meth)acrylate, (meth)acrylate base) ethylhexyl acrylate, 2-phenoxyethyl (meth)acrylate, tetrahydrofurfuryl (meth)acrylate, hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate , 2-hydroxy-3-chloropropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, acyl octyloxy-2-hydroxypropyl (meth)acrylate, glycerol (methyl) (meth)acrylate, 2-methoxyethyl (meth)acrylate, 3-methoxybutyl (meth)acrylate, ethoxydiethylene glycol (meth)acrylate, methoxytriethyl Glycol (meth)acrylate, methoxytripropylene glycol (Meth)acrylate, poly(ethylene glycol) methyl ether (meth)acrylate, phenoxydiethylene glycol (meth)acrylate, p-nonylphenoxy polyethylene glycol (meth)acrylate Acrylates, p-nonylphenoxy polypropylene glycol (meth)acrylate, glycidyl (meth)acrylate, tetrafluoropropyl (meth)acrylate, 1,1,1,3 (meth)acrylate, 3,3-hexafluoroisopropyl, octafluoropentyl (meth)acrylate, heptafluorodecyl (meth)acrylate, tribromophenyl (meth)acrylate, α-hydroxymethyl methacrylate, In the group consisting of ethyl α-hydroxy methacrylate, propyl α-hydroxy methacrylate and butyl α-hydroxy methacrylate, but not limited to these.

Specific examples of the aromatic vinyl monomers can be selected from styrene, α-methylstyrene, (o, m, p)-vinyltoluene, (o, m, p)-methoxy In the group consisting of styrene and (o-, m-, p-)-chlorostyrene, but not limited to these.

Specific examples of the unsaturated ethers can be selected from the group consisting of vinyl methyl ether, vinyl ethyl ether, and allyl glycidyl ether, but are not limited to these.

Specific examples of the unsaturated imides include N-phenylmaleimide, N-(4-chlorophenyl)maleimide, and N-(4-hydroxyphenyl) In the group consisting of maleimide and N-cyclohexylmaleimide, it is not limited to these.

The acid anhydride includes maleic anhydride, methylmaleic anhydride, tetrahydrophthalic anhydride, and the like, but is not limited to these.

The monomer that imparts alkali solubility is not particularly limited as long as it contains an acid group. For example, it is preferable to use a monomer selected from the group consisting of (meth)acrylic acid, crotonic acid, itaconic acid, horse lactic acid, fumaric acid, monomethylmaleic acid, 5-norbornene-2-carboxylic acid, mono-2-((meth)acryloyloxy)ethyl phthalate, mono-succinate One or more of the group consisting of 2-((meth)acryloyloxy)ethyl ester and ω-carboxypolycaprolactone mono(meth)acrylate, but not limited to these.

According to an embodiment of the present specification, the acid value of the binder resin is 50KOH mg/g to 130KOH mg/g, and the weight average molecular weight is 1,000g/mol to 50,000g/mol.

Preferably, the acid value of the binder resin is 70KOH mg/g to 120KOH mg/g, and the weight average molecular weight is 8,000g/mol to 11,000g/mol.

The acid value of the binder resin can be determined by titration with 0.1N concentration of potassium hydroxide (KOH) methanol solution.

The photoinitiator is not particularly limited as long as it is an initiator that generates free radicals by light to initiate crosslinking, and for example, it can be selected from acetophenone-based compounds, biimidazole-based compounds, and triazine-based compounds. and one or more of the group consisting of oxime-based compounds.

The acetophenone compounds include 2-hydroxy-2-methyl-1-phenylpropane-1-one, 1-(4-isopropylphenyl)-2-hydroxy-2-methylpropane-1 - ketone, 4-(2-hydroxyethoxy)-phenyl-(2-hydroxy-2-propyl) ketone, 1-hydroxycyclohexyl phenyl ketone, benzoin methyl ether, benzoin ethyl ether, benzoin isobutyl ether, Butyl benzoin, 2,2-dimethoxy-2-phenylacetophenone, 2-methyl-(4-methylthio)phenyl-2-morpholino-1-propan-1-one, 2-Benzyl-2-dimethylamino-1-(4-morpholinylphenyl)-butan-1-one, 2-4-bromo-benzyl-2-dimethylamino-1 -(4-Morpholinylphenyl)-butan-1-one or 2-methyl-1-[4-(methylthio)phenyl]-2-morpholine propan-1-one and the like are not limited to these.

As the biimidazole-based compound, there are 2,2-bis(2-chlorophenyl)-4,4',5,5'-tetraphenylbiimidazole, 2,2'-bis(o-chlorophenyl) -4,4',5,5'-tetrakis(3,4,5-trimethoxyphenyl)-1,2'-biimidazole, 2,2'-bis(2,3-dichlorophenyl) -4,4',5,5'-tetraphenylbiimidazole, 2,2'-bis(o-chlorophenyl)-4,4,5,5'-tetraphenyl-1,2'-biimidazole etc., but not limited to this.

The triazine compounds include 3-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}propionic acid, 3-{4-[2,4- 1,1,1,3,3,3-hexafluoroisopropyl bis(trichloromethyl)-s-triazin-6-yl]phenylthio}propanoate, 2-{4-[2,4- ethyl bis(trichloromethyl)-s-triazin-6-yl]phenylthio}acetate, 2-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl] Phenylthio}acetic acid 2-epoxyethyl ester, 2-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}acetic acid cyclohexyl ester, 2- Benzyl {4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}acetate, 3-{chloro-4-[2,4-bis(trichloromethyl) )-s-triazin-6-yl]phenylthio}propionic acid, 3-{4-[2,4-bis(trichloromethyl)-s-triazin-6-yl]phenylthio}propionamide , 2,4-bis(trichloromethyl)-6-p-methoxystyryl-s-triazine, 2,4-bis(trichloromethyl)-6-(1-p-dimethylamino) Phenyl)-1,3-butadienyl-s-triazine, 2-trichloromethyl-4-amino-6-p-methoxystyryl-s-triazine, etc., and not limited thereto .

The oxime series compounds include 1,2-octanedione-1-(4-phenylthio) phenyl-2-(o-benzyl oxime) (Ciba-Geigy), CGI -124), Ethanone-1-(9-ethyl)-6-(2-methylbenzyl-3-yl)-1-(O-acetyloxime) (CGI-242), N -1919 (Adeka), etc., but not limited to this.

The solvent may be selected from acetone, methyl ethyl ketone, methyl isobutyl ketone, methyl cellosolve, ethyl cellosolve, tetrahydrofuran, 1,4-dioxane, ethylene glycol dimethyl ether , Ethylene glycol diethyl ether, propylene glycol dimethyl ether, propylene glycol diethyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, diethylene glycol methyl ethyl ether, chloroform, dichloromethane, 1,2- Dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, 1,1,2-trichloroethylene, hexane, heptane, octane, cyclohexane, Benzene, toluene, xylene, methanol, ethanol, isopropanol, propanol, butanol, tertiary butanol, 2-ethoxypropanol, 2-methoxypropanol, 3-methoxybutanol, Cyclohexanone, Cyclopentanone, Propylene Glycol Methyl Ether Acetate, Propylene Glycol Ethyl Ether Acetate, 3-Methoxybutyl Acetate, Ethyl 3-Ethoxypropionate, Ethyl Cellosolve Acetate , one or more of the group consisting of methyl cellosolve acetate, butyl acetate, propylene glycol monomethyl ether and dipropylene glycol monomethyl ether, but not limited to this.

An embodiment of the present specification provides a colorant composition, wherein based on the total weight of the colorant composition, the content of the polymer is 10% by weight to 30% by weight; the content of the binder resin is 5% by weight % to 40% by weight; the content of the multifunctional monomer is 5% to 30% by weight; the content of the photoinitiator is 0.1% to 10% by weight and the content of the solvent is 10% by weight % to 60% by weight.

According to one embodiment of the present specification, the colorant composition may further include at least one selected from the group consisting of a leveling agent, an antioxidant, an adjuvant, and a surfactant.

According to an embodiment of the present specification, the colorant composition may further contain an antioxidant.

According to an embodiment of the present specification, based on the total weight of the solid content in the colorant composition, the content of the antioxidant is 0.1% by weight to 20% by weight. weight%.

According to one embodiment of the present specification, the colorant composition further comprises a photocrosslinking sensitizer, a curing accelerator, an adhesion accelerator, a surfactant, a thermal polymerization inhibitor, an ultraviolet absorber, a dispersant, and a One or more additives in the group consisting of leveling agents.

According to an embodiment of the present specification, the content of the additive is 0.1% by weight to 20% by weight based on the total weight of the solid content in the colorant composition.

The photocrosslinking sensitizer can use one or more selected from the group consisting of the following compounds: benzophenone, 4,4-bis(dimethylamino)benzophenone, 4,4- Bis(diethylamino)benzophenone, 2,4,6-trimethylaminobenzophenone, methyl o-benzoylbenzoate, 3,3-dimethyl-4-methyl Oxybenzophenone, 3,3,4,4-tetrakis(tert-butylcarbonyl peroxide)benzophenone and other benzophenone compounds; 9-fluorenone, 2-chloro-9-fluorenone , Fluorenone compounds such as 2-methyl-9-fluorenone; thioxanthone-based compounds such as thioxanthone, isopropylthioxanthone, and diisopropylthioxanthone; xanthone-based compounds such as xanthone and 2-methylxanthone ;Anthraquinone compounds such as anthraquinone, 2-methylanthraquinone, 2-ethylanthraquinone, tert-butylanthraquinone, 2,6-dichloro-9,10-anthraquinone; 9-phenylacridine , 1,7-bis(9-acridinyl)heptane, 1,5-bis(9-acridylpentane), 1,3-bis(9-acridinyl)propane and other acridine-based compounds; Benzyl, 1,7,7-trimethyl-bicyclo[2,2,1]heptane-2,3-dione, 9,10-phenanthrenequinone and other dicarbonyl compounds; 2,4,6-trimethyl Phosphine oxides such as benzyldiphenylphosphine oxide and bis(2,6-dimethoxybenzyl)-2,4,4-trimethylpentylphosphine oxide Compounds; 4-(dimethylamino) benzoic acid methyl ester, 4-(dimethylamino) ethyl benzoate, 2-n-butoxyethyl-4-(dimethylamino) benzene Benzoate-based compounds such as formate; 2,5-bis(4-diethylaminobenzylidene) cyclopentanone, 2,6-bis(4-diethylaminobenzylidene) ring Amine-based synergists such as hexanone, 2,6-bis(4-diethylaminobenzylidene)-4-methyl-cyclopentanone; 3,3-carbonylvinyl-7-(diethyl Amino)coumarin, 3-(2-benzothiazolyl)-7-(diethylamino)coumarin, 3-benzyl-7-(diethylamino)coumarin , 3-benzyl-7-methoxy-coumarin, 10,10-carbonylbis[1,1,7,7-tetramethyl-2,3,6,7-tetrahydro-1H, 5H,11H-C1]-benzopyrano[6,7,8-ij]-quinazin-11-one and other coumarin compounds; 4-diethylaminochalcone, 4-azide Chalcone compounds such as benzylidene acetophenone; 2-benzyl methylene, 3-methyl-b-naphthothiazoline.

The hardening accelerator is used to improve hardening and mechanical strength. Specifically, it can be selected from the group consisting of 2-mercaptobenzimidazole, 2-mercaptobenzothiazole, 1,3,4-thiadiazole, 2-mercapto-4,6-dimethylaminopyridine, pentaerythritol-tetrakis(3-mercaptopropionate), pentaerythritol-tris(3-mercaptopropionate), pentaerythritol -Tetrakis(2-mercaptoacetate), Pentaerythritol-tris(2-mercaptoacetate), Trimethylolpropane-tris(2-mercaptoacetate) and Trimethylolpropane-tris(3-mercaptoacetate) one or more of the group consisting of propionate).

As the adhesion promoter used in this specification, one selected from the group consisting of methacryloyloxypropyltrimethoxysilane, methacryloyloxypropyldimethoxysilane, and methacryloyloxypropyl can be used. One or more of methacryloyl silane coupling agents such as methacrylotriethoxysilane, methacryloyloxypropyldimethoxysilane, etc. As the alkyltrimethoxysilane, one selected from the group consisting of octyltrimethoxysilane can be used. Silane, Dodecyl Trimethoxy One or more of alkoxysilane, octadecyltrimethoxysilane, etc.

The surfactant is a silicon-based surfactant or a fluorine-based surfactant. Specifically, the silicon-based surfactant can be BYK-077 and BYK-077 from BYK-Chemie. BYK)-085, BYK(BYK)-300, BYK(BYK)-301, BYK(BYK)-302, BYK(BYK)-306, BYK(BYK)-307, BYK(BYK) -310, BYK-320, BYK-322, BYK-323, BYK-325, BYK-330, BYK-331 , BYK-333, BYK-335, BYK-341v344, BYK-345v346, BYK-348, BYK-354, BYK BYK-355, BYK-356, BYK-358, BYK-361, BYK-370, BYK-371, BYK ( BYK)-375, BYK (BYK)-380, BYK (BYK)-390, etc. As fluorine-based surfactants, DIC (DaiNippon Ink & Chemicals) can be used )) Company's F-114, F-177, F-410, F-411, F-450, F-493, F-494, F-443, F-444, F-445, F-446, F- 470, F-471, F-472SF, F-474, F-475, F-477, F-478, F-479, F-480SF, F-482, F-483, F-484, F-486, F-487, F-172D, MCF-350SF, TF-1025SF, TF-1117SF, TF-1026SF, TF-1128, TF-1127, TF-1129, TF-1126, TF-1130, TF-1116SF, TF- 1131, TF1132, TF1027SF, TF-1441, TF-1442, etc., but not limited thereto.

As the antioxidant, it can be selected from hindered phenols (Hindered phenol)-based antioxidants, amine-based antioxidants, sulfur-based antioxidants, and phosphine-based antioxidants, but not limited to this.

Specific examples of the antioxidant include phosphoric acid-based heat stabilizers such as phosphoric acid, trimethyl phosphate, and triethyl phosphate; yl-3-(4-hydroxy-3,5-di-tert-butylphenyl)propionate, tetrabis[methylene-3-(3,5-di-tert-butyl-4-hydroxyl) phenyl)propionate]methane, 1,3,5-trimethyl-2,4,6-tris(3,5-di-tert-butyl-4-hydroxybenzyl)benzene, 3,5- Di-tert-butyl-4-hydroxybenzyl diethyl phosphite, 2,2-thiobis(4-methyl-6-tert-butylphenol), 2,6-g,t-butyl Phenol 4,4'-butylene-bis(3-methyl-6-tert-butylphenol), 4,4'-thiobis(3-methyl-6-tert-butylphenol) or bis[ 3,3-Bis-(4'-hydroxy-3'-tert-butylphenyl)butyric acid]diol (Bis[3,3-bis-(4'-hydroxy-3'-tert-butylphenyl) Butanoicacid]glycol ester and other hindered phenols are primary antioxidants; such as phenyl-α-naphthylamine, phenyl-β-naphthylamine, N,N'-diphenyl-p-phenylenediamine or N,N'-di-β-naphthyl-p-phenylenediamine and other amine-based secondary antioxidants; dilauryl disulfide, dilauryl thiopropionate, distearyl thiopropionate, Sulfur (Thio)-based secondary antioxidants such as mercaptobenzothiazole or tetramethylthiuram disulfide tetrabis[methylene-3-(laurylthio)propionate]methane; or such as triphenyl Phosphite, Tris(nonylphenyl)phosphite, Triisodecylphosphite, Bis(2,4-dibutylphenyl) Pentaerythritol Diphosphite Diphosphite) or (1,1'-biphenyl)-4,4'-diylbisphosphonite tetrakis[2,4-bis(1,1-dimethylethyl)phenyl]ester ((1 ,1'-Biphenyl)-4,4'-Diylbisphosphonous acid tetrakis[2,4-bis(1,1-dimethylethyl)phenyl]ester) and other phosphites Antioxidants.

As the ultraviolet absorber, 2-(3-tert-butyl-5-methyl-2-hydroxyphenyl)-5-chloro-benzotriazole, alkoxybenzophenone, etc. can be used, and It is not limited to this, and it can be used by the user normally in this field.

The thermal polymerization inhibitor may contain, for example, a group selected from p-anisole, hydroquinone, pyrocatechol, t-butyl catechol, N-nitroso Phenylhydroxylamine ammonium salt, N-nitrosophenylhydroxylamine aluminum salt, p-methoxyphenol, di-tert-butyl-p-cresol, pyrogallol, benzoquinone, 4,4-thiol Bis(3-methyl-6-tert-butylphenol), 2,2-methylenebis(4-methyl-6-tert-butylphenol), 2-mercaptoimidazole and phenothiazine One or more of the formed groups are not limited to these, and those generally known in the art may also be included.

The dispersing agent can be used by a method of adding it internally to a pigment in a form in which the pigment is surface-treated in advance, or a method of adding it externally to a pigment. As the dispersing agent, compound-type, nonionic, anionic or cationic dispersing agents can be used, and examples thereof include fluorine-based, ester-based, cationic-based, anionic-based, nonionic-based, and amphoteric surfactants. These may be used individually or in combination of two or more.

Specifically, the dispersing agent may be selected from polyalkylene glycols and their esters, polyoxyalkylene polyols, ester alkylene oxide adducts, alcohol alkylene oxide adducts, sulfonic acid esters, sulfonic acid One or more of the group consisting of salt, carboxylate, carboxylate, alkylamide alkylene oxide adduct and alkylamine, but not limited to this.

The leveling agent can be polymeric or non-polymeric. Specific examples of polymeric leveling agents include polyethyleneimine, polyamide amines, and reaction products of amines and epoxides, and specific examples of non-polymeric leveling agents include non-polymeric sulfur-containing Compounds and non-polymer nitrogen-containing compounds are not limited to these, and can be used by any user in the art.

Specifically, the leveling agent may be F-554, but is not limited thereto.

As the adhesive agent, KBM-503 can be used, but it is not limited to this, and it can be used by any user in this field.

An embodiment of the present specification provides a photoresist prepared using the colorant composition.

In more detail, the coloring agent composition of this specification can be apply|coated to a base material by an appropriate method, and the photoresist of a film or pattern form can be formed.

Although the coating method is not particularly limited, a spray method, a roll coating method, a spin coating method, or the like can be used, and generally, a spin coating method is widely used. In addition, after forming the coating film, a part of residual solvent may be removed under reduced pressure as the case may be.

Examples of light sources for curing the colorant composition of the present specification include, but are not necessarily limited to, mercury vapor arc (arc), carbon arc, and xenon (Xe) arc that emit light having a wavelength of 250 nm to 450 nm.

The colorant composition of this specification can be used for a pigment dispersion type photoresist for the manufacture of a thin film transistor liquid crystal display (TFT LCD) color filter, a thin film transistor liquid crystal display (TFT LCD) or an organic Photoresist for black matrix formation of light-emitting diode, for forming overcoat layer Photoresist, column spacer photoresist, photocurable coating, photocurable ink, photocurable adhesive, printing plate, photoresist for printed wiring boards, plasma display panel (PDP) ) for photoresist, etc., the use of which is not particularly limited.

According to an embodiment of the present specification, a color filter including the photoresist is provided.

The color filter can utilize a polymer containing a triarylmethane dye monomer and a (meth)acrylic monomer, a binder resin containing a structure represented by the following chemical formula 1, a multifunctional monomer, a photopolymer The starting agent and the colorant composition of the solvent are prepared. A color filter can be formed by applying the colorant composition on a substrate to form a coating film, and exposing, developing, and curing the coating film.

The substrate may be a glass plate, a silicon wafer, a plastic substrate such as polyethersulfone (PES), polycarbonate (PC) or the like, and the types thereof are not particularly limited.

The color filter may include a red pattern, a green pattern, a blue pattern, a black matrix.

According to yet another embodiment, the color filter may further include an overcoat.

Between the color pixels of the color filter, a lattice-like black pattern called a black matrix can be arranged in order to improve the contrast. As the material of the black matrix, chrome can be used. In this case, it is possible to use a method in which chromium is vapor-deposited on the entire glass substrate, and a pattern is formed by etching. However, considering the high cost of the process This, the high reflectivity of chromium, and the environmental pollution caused by the waste liquid of chromium, resin black matrix by the pigment dispersion method which can perform microfabrication can also be used.

The black matrix of one Embodiment of this specification can use a black pigment or a black dye as a color material. For example, carbon black may be used alone, or carbon black may be used in combination with a coloring pigment. In this case, since the coloring pigment having insufficient light-shielding properties is mixed, there are the following advantages. The adhesion will not be reduced.

An embodiment of the present specification provides a display device including the color filter.

The display device can be a Plasma Display Panel (PDP), a Light Emitting Diode (LED), an Organic Light Emitting Diode (OLED), a Liquid Crystal Display (Liquid Crystal Display, Any of LCD), Thin Film Transistor-Liquid Crystal Display (LCD-TFT) and Cathode Ray Tube (CRT).

Hereinafter, in order to demonstrate this specification concretely, an Example is given and demonstrated in detail. However, the examples of the present specification can be modified into various other forms, and the scope of the present specification should not be interpreted as being limited to the examples described below. The examples in this specification are provided to more completely explain this specification to those of ordinary skill in the art.

<Example>

<Synthesis Examples of Compounds>

1. Synthesis of intermediate compounds

(1) Synthesis of compound of [Chemical formula 1-1]

To 0.220 mol (53 g, 1 eq) of N-(4-hydroxycyclohexyl)-1-naphthylamine and 0.242 mol (1.1 eq) of triethylamine was added 50 mL of dichloromethane, stirred and dissolved. Thereafter, 0.242 mol (20.8 g, 1.1 eq) of methacrylic anhydride was added, and the temperature was raised to 40°C and maintained. After stirring for a duration of about 6 hours, distilled water was added to separate the organic layer. After stirring a further 20 mL of saturated sodium chloride solution, stirring was continued for a duration of 30 minutes. After layer separation, the organic layer was dried under reduced pressure and purified to obtain 0.17 mol and 53 g of [Chemical Formula 1-1] (yield: 77%).

(2) Preparation of compound of [Chemical formula 1-2]

Under nitrogen atmosphere, 0.06mol (15g, 1eq) of 4,4-difluorobenzophenone and 0.29mol (40g, 5eq) of N-isopropylaniline were added to the flask, and stirred at room temperature for about 48 hours duration. After completion of the reaction, distilled water was added and 50 mL of saturated sodium chloride solution was added to separate the organic layer. After layer separation, the organic layer was dried under reduced pressure and purified by column chromatography to obtain 15 g (0.03 mol) of (dichloromethane: Methanol=15:1) [Chemical formula 1-2] (yield 50%).

Ionization mode: Atmospheric Pressure Chemical Ionization (APCI)+: m/z=448[M+H]+, Exact Mass: 448

(3) Preparation of compound of [Chemical formula 1-3]

To 140 g of chloroform was added 0.03 mol (13.4 g, 1 eq) of the compound of [Chemical formula 1-2] and stirred. After this time, 0.045 mol (6.9 g, 1.5 eq) of phosphorus oxychloride was added and stirred for about 15 minutes. 0.001 mol of 4-Methoxy phenol and 0.03 mol (9.3 g, 1 eq) of [Chemical formula 1-1] were put in, and the temperature was raised to 60° C. and refluxed for 4 hours. After the completion of the reaction, the mixture was cooled to normal temperature, and distilled water was further added and stirred. The layers were separated and concentrated under reduced pressure, and the resulting compound was purified by column chromatography to obtain 0.025 mol, 19.4 g of (dichloromethane:methanol:ethyl acetate=6:1:2) [chemical formula 1- 3] (83% yield).

Ionization mode: APCI+: m/z=740[M+H]+, Exact Mass: 740

2. Synthesis of triarylmethane blue dye monomers

(1) Synthesis Example 1: Synthesis of [Chemical Formula I]

After dissolving 0.01 mol (7.8 g) of the compound of [Chemical formula 1-3] in 50 g of methanol (MeOH), 0.011 mol of lithium bistrifluoromethanesulfonimide was added to a 20% aqueous solution to replace the salt. After filtration, the obtained compound was dissolved in chloroform, washed with water, and concentrated under reduced pressure to obtain 0.009 mol, 9.2 g of [chemical formula I] (yield 90%).

Ionization mode: APCI+: m/z=740[M+H]+, Exact Mass: 740

3. Synthesis of polymers comprising triarylmethane dye monomers and (meth)acrylic monomers

(Synthesis Example 1) Synthesis of Polymer A

A reflux cooling device was set up in a 50 mL flask, and 25 wt % and 75 wt % of the methacrylic acid monomer and the dye monomer represented by Chemical Formula I were respectively charged in 25 wt % and 75 wt % based on the total polymer weight under nitrogen, and then mixed with A mixture of solvent propylene glycol monomethyl ether acetate and diacetone alcohol 1:1 was mixed, and the temperature was raised to 60°C. Thereafter, 10 parts by weight of thermal polymerization initiator V-65 (2,2-azobis(2,4-dimethylvaleronitrile)(2,2-Azobis(2,2-Azobis(2,2-Azobis(2,2- ,4-dimethylvaleronitrile))), refluxed for 16 hours to complete the polymerization. A polymer A having a number average molecular weight of 26,546 and a degree of dispersion of 2.57 was obtained.

(Synthesis Example 2) Synthesis of Polymer B

Based on the total weight of the polymer, 4-(2-(methacryloyloxy)-4-oxobutyric acid (4-(2-(methacryloyloxy)) was added at 12.59% by weight and 87.41% by weight, respectively. )ethoxy)-4-oxobutanoic acid) and the dye monomer represented by Chemical Formula I, were prepared in the same manner as in Synthesis Example 1 to obtain a polymer B having a number average molecular weight of 20,600 and a degree of dispersion of 2.01.

The degree of dispersity is the polydispersity index (Poly Dispersity Index, PDI), expressed as the value of the weight average molecular weight divided by the number average molecular weight. The weight average molecular weight and number average molecular weight are determined by High Performance Liquid Chromatography (HPLC) analysis.

4. Adhesive Synthesis Example

(Synthesis Example 1) Preparation of Binder Resin A

Based on the total weight of the solid content of the binder resin, the benzophenone methacrylate, benzene and Ethylene [chemical formula A-5], glycidyl methacrylate [chemical formula A-6] and methacrylic acid [chemical formula A-7] were put into the reaction vessel, mixed with the solvent propylene glycol monomethyl ether acetate and placed in a nitrogen environment. The temperature was raised to 60°C. Thereafter, 10 parts by weight of the thermal polymerization initiator V-65 (2,2-azobis(2,4-dimethylvaleronitrile) (2,2- Azobis (2,4-dimethylvaleronitrile))), and reacted for 16 hours to prepare Binder Resin A.

The acid value of the prepared binder resin was 85 KOH mg/g, and the weight average molecular weight was 9,000 g/mol.

(Synthesis Example 2) Preparation of Binder Resin B

Based on the total weight of the binder resin solid content, benzophenone methacrylate and glycidyl methacrylate represented by [chemical formula Chemical formula A-6] and methacrylic acid [Chemical formula A-7] were prepared in the same manner as in Synthesis Example 1 to prepare a binder resin B.

The acid value of the binder resin B was 87 KOH mg/g, and the weight average molecular weight was 9,500 g/mol.

(Synthesis Example 3) Preparation of Binder Resin C

Based on the total weight of the binder resin solid content, benzophenone represented by [Chemical formula A-1] was added at 10% by weight, 41% by weight, 36% by weight, and 13% by weight, respectively After methacrylate, glycidyl methacrylate [chemical formula A-6], cyclohexyl methacrylate [chemical formula A-9], and methacrylic acid [chemical formula A-7], the same procedure as in Synthesis Example 1 was carried out. The preparation was carried out, whereby the binder resin C was prepared.

The acid value of the binder resin C was 84 KOH mg/g, and the weight average molecular weight was 9,200 g/mol.

(Synthesis Example 4) Preparation of Binder Resin D

Based on the total weight of the binder resin solid content, N-(4-(benzylphenyl) represented by [Chemical formula A-2] was added at 11% by weight, 31% by weight, 45% by weight, and 13% by weight, respectively. After methacrylamide) (N-(4-benzoylphenyl)methacrylamide), styrene [chemical formula A-5], glycidyl methacrylate [chemical formula A-6] and methacrylic acid [chemical formula A-7], Preparation was carried out in the same manner as in Synthesis Example 1, whereby Binder Resin D was prepared.

The acid value of the binder resin D was 78 KOH mg/g, and the weight average molecular weight was 8,400 g/mol.

(Synthesis Example 5) Preparation of Binder Resin E

Based on the total weight of the binder resin solid content, 2-(4-(benzylphenoxy) represented by [Chemical formula A-3] was added at 11% by weight, 31% by weight, 45% by weight, and 13% by weight, respectively. )-2-oxyethyl methacrylate) (2-(4-benzoylphenoxy)-2-oxoethyl methacrylate), styrene [chemical formula A-5], glycidyl methacrylate [chemical formula A-6] and methyl methacrylate After base acrylic acid [Chemical formula A-7], the preparation was carried out in the same manner as in Synthesis Example 1, whereby the binder resin E was prepared.

The acid value of the binder resin E was 80 KOH mg/g, and the weight average molecular weight was 8,700 g/mol.

(Synthesis Example 6) Preparation of Binder Resin F

Based on the total weight of the binder resin solid content, N-(4-(4-(((dimethyl) N-(4-(4-((dimethylamino)methyl)benzoyl)phenyl)methacrylamide, styrene [chemical formula A-5], Glycidyl methacrylate [Chemical formula A-6] and methacrylic acid [Chemical formula A-7] were prepared in the same manner as in Synthesis Example 1 to prepare a binder resin F.

The acid value of the binder resin F was 75 KOH mg/g, and the weight average molecular weight was 9,100 g/mol.

(Synthesis Example 7) Preparation of Binder Resin G

The benzophenone methacrylate represented by [Chemical formula A-1] was added at 10% by weight, 56% by weight, 10% by weight, 7% by weight, and 17% by weight, based on the total weight of the solid content of the binder resin. , cyclohexyl methacrylate [chemical formula A-9], N-phenylmaleimide [chemical formula A-8], styrene [chemical formula A-5] and methacrylic acid [chemical formula A-7], Preparation was carried out in the same manner as in Synthesis Example 1, whereby Binder Resin G was prepared.

The acid value of the binder resin G was 120 KOH mg/g, and the weight average molecular weight was 10,500 g/mol.

(Synthesis Example 8) Preparation of Binder Resin H

Based on the total weight of the solid content of the binder resin, add cyclohexyl methacrylate [chemical formula A-9], methyl methacrylate [chemical formula A-10] and 61% by weight, 23% by weight and 16% by weight, respectively. After methacrylic acid [Chemical formula A-7], the preparation was carried out in the same manner as in Synthesis Example 1, whereby the binder resin H was prepared.

The acid value of the binder resin H was 117 KOH mg/g, and the weight average molecular weight was 6,830 g/mol.

(Synthesis Example 9) Preparation of Binder Resin I

Based on the total weight of the solid content of the binder resin, add benzyl methacrylate [chemical formula A-11], styrene [chemical formula A-5], 66% by weight, 8% by weight, 11% by weight and 15% by weight, respectively. N-phenylmaleimide [Chemical formula A-8] and methacrylic acid [Chemical formula A-7] were prepared in the same manner as in Synthesis Example 1 to prepare Binder Resin I.

The acid value of the binder resin I was 107 KOH mg/g, and the weight average molecular weight was 10,900 g/mol.

(Synthesis Example 10) Preparation of Binder Resin J

Based on the total weight of the solid content of the binder resin, add styrene [chemical formula A-5], glycidyl methacrylate [chemical formula A-6] and methacrylic acid at 35% by weight, 52% by weight and 13% by weight, respectively. After [Chemical formula A-7], preparation was carried out in the same manner as in Synthesis Example 1, whereby binder resin J was prepared.

The acid value of the binder resin J was 70 KOH mg/g, and the weight average molecular weight was 8,700 g/mol.

[Preparation of Colorant Composition Example 1]

Based on 100 parts by weight of the total weight of the colorant composition, the following mixtures were used to prepare the colorant composition Example 1: 24.32 parts by weight of the dye polymer compound A, 5.86 parts by weight of the binder resin J, 17.88 parts by weight Adhesive resin A, 13.28 parts by weight of multifunctional monomer dipentaerythritol hexaacrylate, 0.6 parts by weight of leveling agent F-554, 0.07 parts by weight of adhering aid KBM-503, 0.88 parts by weight of phenolic antioxidant Oxidant Songnox 1010, 0.87 parts by weight of photoinitiator SPI-03, 22.87 parts by weight of solvent propylene glycol monomethyl ether acetate, and 13.87 parts by weight of diacetone alcohol.

[Preparation of Colorant Composition Examples 2 to 12 and Comparative Examples 1 to 6]

The compounds and the binder resins were changed as described in Table 1 below to prepare colorant compositions Examples 2 to 12 and Comparative Examples 1 to 6.

A-1 or A-2 of Comparative Example 3, Comparative Example 4, and Comparative Example 6 refers to the structures of the following chemical formula A-1 and chemical formula A-2 used in the above-mentioned adhesive synthesis examples.

Experimental example

[Substrate production]

The colorant compositions prepared by the examples 1 to 12 and comparative examples 1 to 6 were spin-coated on glass (5cm×5cm), and preheated at 105°C for 70 seconds (Prebake) to form a film. After exposing the film under a high pressure mercury lamp with an energy of 40 mJ/cm ² using a photo mask, the pattern was developed with a KOH alkaline aqueous solution and washed with distilled water. After removing distilled water, post-heat treatment (postbake) was performed at 240° C. for 20 minutes to obtain a color pattern.

[Evaluation of heat resistance]

For the post-heat-treated (Postbake once) substrate prepared under the conditions described above, a spectrophotometer (MCPD, Otsuka Co., Ltd.) was used to obtain a wavelength range of 380 nm to 780 nm. absorption spectrum.

In addition, the substrate subjected to the post-heat treatment (postbake once) was additionally treated at 240° C. for 60 minutes, and the transmittance spectrum was obtained in the same equipment and in the same measurement range.

Using the values ΔL*, Δa*, and Δb* obtained from the absorption spectrum obtained by using the C light source as a backlight, "ΔEab (heat resistance)" was calculated by the following formula 1, and shown in Table 2 below.

[Formula 1]△Eab(L*, a*, b*)={(△L*) ² +(△a*) ² +(△b*) ² } ^1/2

A small value of ΔEab (heat resistance) means that the color change is small, and indicates that the heat resistance is excellent.

[Chemical Resistance Evaluation]

After the substrate subjected to the one-time post-heat treatment was cut into 1 cm×5 cm, the absorption spectrum in the wavelength range of 380 nm to 780 nm was measured with a spectrophotometer (MCPD, Otsuka Co., Ltd.).

After obtaining a spectrum, it was immersed in 16 g of N-methyl-2-pyrrolidone (N-methyl-2-pyrrolidone) solvent, left at room temperature for 10 minutes, and then washed cleanly with distilled water. Transmittance spectra were obtained with the same equipment and the same measurement range.

The above-mentioned [Equation 1] was used for calculation from the spectra before and after immersion, and "ΔEab (chemical resistance)" is shown in Table 2 below.

A small value of ΔEab (chemical resistance) means that the color change is small, and indicates that the chemical resistance is excellent.

It was confirmed from Table 2 that the ΔEab values of Examples 1 to 12 were smaller than those of Comparative Examples 1 to 6, and it was confirmed by using an embodiment of the present specification. A colorant composition and a color filter excellent in heat resistance and chemical resistance can be obtained.

Claims (11)

A colorant composition comprising: a polymer comprising a triarylmethane dye monomer and a (meth)acrylic monomer; a binder resin comprising a structure represented by the following Chemical Formula 1 and

; a multifunctional monomer; a photoinitiator; and a solvent,

In the chemical formula 1,

Means a moiety connected to other monomers or linkages, X' is O or NH, L1 and L2 are the same or different from each other, and are each independently a direct bond, substituted or unsubstituted alkylene, -C (=O)-, or -L3-O(C=O)-, L3 is a substituted or unsubstituted alkylene, R1 to R3 are the same or different from each other, and are independently hydrogen, hydroxyl, or substituted or unsubstituted alkyl, r2 is an integer from 0 to 4, where r2 is 2 or greater, R2 is the same or different from each other, r3 is an integer from 0 to 5, where r3 is 2 or greater Below, R3 are the same or different from each other. The coloring agent composition according to item 1 of the claimed scope, wherein the triarylmethane dye monomer is represented by the following chemical formula 2:

In the Chemical Formula 2, R11 to R14 are the same or different from each other, and are each independently a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or substituted or unsubstituted alkoxy, X1 and X2 are the same or different from each other, each independently hydrogen, deuterium, halo, hydroxy, -COOH, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, x1 and x2 are integers from 0 to 4, In the case where x1 and x2 are respectively 2 or more, the structures within the parentheses are the same or different from each other, A is represented by any one of the following chemical formula A-1 to the following chemical formula A-3, [A-1]

In the chemical formula A-1 to chemical formula A-3,

means a moiety linked to other monomers or linkages,

means a moiety connected to A of the Chemical Formula 2, Z is N or CR, the R is hydrogen, or a substituted or unsubstituted alkyl group, R4 to R6 are the same or different from each other, and are independently hydrogen, Deuterium, or substituted or unsubstituted alkyl, R15 and R16 being the same or different from each other, each independently hydrogen, deuterium, substituted or unsubstituted alkyl, or substituted or unsubstituted aryl, X is an anionic group, X3 to X6 are the same or different from each other, and are each independently hydrogen, deuterium, halogen group, hydroxyl, -COOH, substituted or unsubstituted alkoxy, substituted or unsubstituted alkyl , substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted heteroaryl, x3 is an integer from 0 to 3, where x3 is 2 or more In the case where X3 is the same or different from each other, x4 is an integer from 0 to 10, in the case where x4 is 2 or more, X4 is the same or different from each other, x5 is an integer from 0 to 4, and x5 is 2 or more than 2 In the case where X5 is the same or different from each other, x6 is an integer of 0 to 4, in the case where x6 is 2 or more, X6 is the same or different from each other, and B is a substituted or unsubstituted aryl group. The colorant composition of claim 1, wherein the weight ratio of the triarylmethane dye monomer to the (meth)acrylic monomer is 9:1 to 4:6. The colorant composition of claim 1, wherein the polymer has a weight average molecular weight of 5,000 g/mol to 50,000 g/mol. The colorant composition according to the first item of the claimed scope, wherein the binder resin further comprises any one or more of the structures represented by the following chemical formulas 4 to 5:

In the Chemical Formula 4 to the Chemical Formula 5, R41 to R44, R51 and R52 are the same or different from each other, and are each independently hydrogen, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group , Ar is a substituted or unsubstituted aryl group, r44 is an integer from 0 to 5, and when r44 is 2 or more, R44 is the same or different from each other. The colorant composition according to claim 1, wherein the content of the polymer is 3% to 50% by weight based on the total weight of the solid content in the colorant composition, and the The content of the binder resin is 5 to 40% by weight, the content of the multifunctional monomer is 5 to 40% by weight, and the content of the photoinitiator is 1 to 10% by weight. The colorant composition according to item 1 of the claimed scope, wherein the colorant composition further comprises one or more of pigments and dyes. The colorant composition according to the first item of the claimed scope further comprises one or more selected from the group consisting of a leveling agent, an antioxidant, an adjuvant and a surfactant. A photoresist is prepared by using the coloring agent composition as described in item 1 of the patent application scope. A color filter comprising the photoresist as described in item 9 of the patent application scope. A display device comprising the color filter as described in item 10 of the patent application scope.