KR101531616B1 - Core-shell dye, photosensitive resin composition for color filter including the same, and color filter using the same - Google Patents

Abstract

There is provided a core-shell dye comprising a core including a squaraine dye and a shell surrounding the core and containing cyclodextrin, and a photosensitive resin composition and a color filter for a color filter comprising the same.

Description

TECHNICAL FIELD [0001] The present invention relates to a core-shell dye, a photosensitive resin composition for a color filter, and a color filter using the same. BACKGROUND ART [0002]

The present invention relates to a core-shell dye, a photosensitive resin composition for a color filter containing the core-shell dye, and a color filter using the same.

The liquid crystal display device, which is one of the display devices, has advantages such as lightness, thinness, low cost, low power consumption driving and bonding with a good integrated circuit, and the use range thereof is expanded for notebook computers, monitors and TV images. Such a liquid crystal display device includes a lower substrate on which a black matrix, a color filter, and ITO pixel electrodes are formed, and an upper substrate on which an active circuit composed of a liquid crystal layer, a thin film transistor, a capacitor capacitor layer and an ITO pixel electrode are formed. The color filter includes a black matrix layer formed in a predetermined pattern on a transparent substrate so as to shield the boundary between pixels, and a plurality of colors, typically red (R), green (G), blue ) Are arranged in a predetermined order, and the pixel portions are sequentially stacked.

In the pigment dispersion method, which is one of the methods of implementing a color filter, a photopolymerizable composition containing a colorant is coated on a transparent substrate provided with a black matrix, a pattern of a pattern to be formed is exposed, And a coloring thin film is formed by repeating a series of processes of thermosetting. The colored photosensitive resin composition used in the production of a color filter according to the pigment dispersion method generally comprises an alkali-soluble resin, a photopolymerizable monomer, a photopolymerization initiator, an epoxy resin, a solvent, and other additives. The pigment dispersion method is actively applied to manufacturing LCDs for mobile phones, notebooks, monitors, TVs and the like. However, recently, a photosensitive resin composition for a color filter using a pigment dispersion method having various advantages has been required to have not only superior pattern characteristics but also further improved performance. In particular, high color rendering and high brightness and high contrast ratio characteristics are urgently required.

The image sensor refers to a component of an image pickup device that generates an image from a mobile phone camera or a digital still camera (DSC). The image sensor is largely divided into a charge coupled device (CCD) image sensor and a complementary And a complementary metal oxide semiconductor (CMOS) image sensor. A color image pickup device used for a solid-state image pickup device or a complementary metal oxide semiconductor is a color filter (hereinafter referred to as " color filter ") having a filter segment of additive mixed primary colors of red, green, color filters) are separately installed and color-separated. In recent years, the pattern size of a color filter mounted on such a color imaging device has a size of 2 탆 or less and is 1/100 to 1/200 times that of a color filter pattern for a conventional LCD. Accordingly, the increase of the resolution and the reduction of the residue are important items that determine the performance of the device.

In a color filter made of a pigment type photosensitive resin composition, there is a limit of luminance and contrast ratio resulting from the pigment particle size. Further, in the case of a color imaging device for an image sensor, a smaller dispersion particle size is required for forming a fine pattern. In order to meet such demands, attempts have been made to introduce a dye that does not form particles instead of a pigment to produce a photosensitive resin composition suitable for a dye, thereby realizing a color filter having improved luminance and contrast ratio. However, in the case of dyes, the luminance may be lowered due to the poor durability such as light resistance and heat resistance compared with the pigment.

One embodiment of the present invention is to provide a core-shell dye having excellent durability and high brightness.

Another embodiment of the present invention is to provide a photosensitive resin composition for a color filter comprising the core-shell dye.

Another embodiment of the present invention is to provide a color filter manufactured using the photosensitive resin composition for a color filter.

An embodiment of the present invention is a dye-sensitized solar cell comprising: a core comprising at least one squaraine dye selected from compounds represented by the following general formulas (1) and (2); And a shell surrounding the core and comprising a cyclodextrin represented by the following formula (9).

[Chemical Formula 1]

(2)

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

Each of R ¹ , R ³ , R ⁵ , R ⁷ , R ⁹ , R ¹¹ , R ¹³ , R ¹⁵ , R ¹⁷ , R ¹⁹ and R ²¹ independently represents a single bond, -O-, -NH-, , A substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, a substituted or unsubstituted C1 to C20 alkoxysilane A substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C3 to C20 cycloalkenylene group, a substituted or unsubstituted C3 to C20 cycloalkynylene group, or a substituted or unsubstituted C6 to C30 aryl Rengi,

R ² , R ⁴ , R ⁶ . R ⁸ , R ¹⁰ , R ¹² , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ and R ²² each independently represent a hydrogen atom, a hydroxyl group, a (meth) acrylate group, -O- Or a substituted or unsubstituted C1 to C20 alkyl group), -NH-COR '(wherein R' is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), -NH-CO-C = CRR ' R and R 'are each independently a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted A substituted or unsubstituted C2 to C20 alkynyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C3 to C20 cycloalkenyl group, a substituted or unsubstituted C3 to C20 cycloalky Or a substituted or unsubstituted C6 to C30 aryl group,

Wherein ^{R 2, R 4, R 6} . At least one of R ⁸ , R ¹⁰ , R ¹² , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ and R ²² is a (meth) acrylate group, -O-COR (wherein R is a hydrogen atom, (Wherein R 'is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), or -NH-CO-C = CRR' (wherein R and R ' Are each independently a hydrogen atom, or a substituted or unsubstituted C1 to C20 alkyl group)

and ^{n 1, n 2, n 3} , n 5, n 7, n 8, n 9, n 10, n 11, n 13 and n ¹⁴ is an integer from 0 to 10, respectively,

n ⁴ , n ⁶ , n ¹² and n ¹⁵ are each an integer of 0 to 4)

[Chemical Formula 9]

(In the above formula (9)

Each of R ³¹ to R ³³ is independently hydrogen, a hydroxy group, a substituted or unsubstituted C1 to C10 alcohol group, a substituted or unsubstituted C1 to C10 alkoxy group, an acetate group, or -ROR ' An unsubstituted C1 to C10 alkylene group, R 'is a substituted or unsubstituted C1 to C10 alkyl group,

and m is an integer of 5 to 10.)

The squaraine dye may be at least one selected from the compounds represented by the following formulas (3) to (8).

(3)

[Chemical Formula 4]

[Chemical Formula 5]

[Chemical Formula 6]

(7)

[Chemical Formula 8]

The length of the squalene dye may be 1 to 3 nm.

The squalene dye may have a maximum absorption peak at a wavelength of 600 to 800 nm.

The cyclodextrin may be at least one selected from compounds represented by the following formulas (10) to (12).

[Chemical formula 10]

(11)

[Chemical Formula 12]

(In the above formulas 10 to 12,

Each of R ⁴¹ to R ¹¹⁴ independently represents a hydrogen atom, a hydroxy group, a substituted or unsubstituted C1 to C10 alcohol group, a substituted or unsubstituted C1 to C10 alkoxy group, an acetate group, or -ROR ' And R 'is a substituted or unsubstituted C1 to C10 alkyl group.

The cyclodextrin may be a compound represented by the following formula (13).

[Chemical Formula 13]

The average particle diameter of the cyclodextrin may be between 5 and 10 Å.

The core-shell dye may include the core and the shell in a molar ratio of 1: 1 to 1: 3.

Another embodiment of the present invention is a dye-sensitized solar cell comprising (A) the core-shell dye; (B) an alkali-soluble resin; (C) a photopolymerizable monomer; (D) a photopolymerization initiator; And (E) a solvent for a color filter.

Wherein the photosensitive resin composition for color filters comprises (A) 0.5 to 10% by weight of the core-shell dye; (B) 0.1 to 30% by weight of the alkali-soluble resin; (C) 0.1 to 30% by weight of the photopolymerizable monomer; (D) 0.1 to 5% by weight of the photopolymerization initiator; And (E) the solvent balance.

Another embodiment of the present invention provides a color filter manufactured using the photosensitive resin composition for a color filter.

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

By using the core-shell dye, a color filter having excellent durability and high brightness can be realized.

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

Unless otherwise specified herein, "substituted" means that at least one hydrogen atom in the compound is replaced by a halogen atom (F, Cl, Br, I), a hydroxy group, a C1- A thio group, an ester group, an ether group, a carboxyl group or a salt thereof, a sulfonic acid group or a salt thereof, a phosphoric acid or a salt thereof, an imino group, an azido group, an amidino group, a hydrazino group, a hydrazino group, a carbonyl group, a carbamoyl group, A C 1 to C 20 alkyl group, a C 2 to C 20 alkenyl group, a C 2 to C 20 alkynyl group, a C 6 to C 30 aryl group, a C 3 to C 20 cycloalkyl group, a C 3 to C 20 cycloalkenyl group, Substituted with a substituent of a C2 to C20 heterocycloalkyl group, a C2 to C20 heterocycloalkenyl group, a C2 to C20 heterocycloalkynyl group, or a combination thereof.

Unless otherwise stated, the terms "heterocycloalkyl", "heterocycloalkenyl", "heterocycloalkynyl" and "heterocycloalkylene" refer to cycloalkyl, cycloalkenyl, cycloalkynyl, and cycloalkyl Means that at least one heteroatom of N, O, S or P is present in the ring compound of the ring.

As used herein, unless otherwise specified, "(meth) acrylate" means that both "acrylate" and "methacrylate" are possible.

The core-shell dye according to one embodiment may have a structure consisting of a core, and a shell surrounding the core. The core may consist of a squaraine dye and the shell may be composed of cyclodextrin. Specifically, the coating layer may be formed by surrounding the squaraine dye with the cyclodextrin.

The squalene dye is a compound having excellent green spectral characteristics and a high molar extinction coefficient. However, since the durability of the pigment is poor, the luminance may be lowered in the baking process after the color resist is manufactured. In one embodiment, the cyclodextrin corresponding to the macrocyclic compound surrounds the squaraine dye, that is, has a structure in which the squaraine dye exists in the ring of the cyclodextrin, so that the durability And thus a color filter of high luminance can be realized.

The squalene dye may be at least one selected from compounds represented by the following general formulas (1) and (2) as green dyes.

[Chemical Formula 1]

(2)

R ¹ , R ³ , R ⁵ , R ⁷ , R ⁹ , R ¹¹ , R ¹³ , R ¹⁵ , R ¹⁷ , R ¹⁹ and R ²¹ each independently represent a single bond, -O-, A substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, a substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, A substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C3 to C20 cycloalkenylene group, a substituted or unsubstituted C3 to C20 cycloalkynylene group, or a substituted or unsubstituted C3 to C20 cycloalkylene group, Or a substituted C6 to C30 arylene group. Among them, each of them is preferably independently a single bond, -O-, -NH-, -CO-, -COO-, a substituted or unsubstituted C1 to C20 alkylene group, or a substituted or unsubstituted C1 to C20 alkoxysilyl group .

Wherein R ² , R ⁴ , R ⁶ , R ⁸ , R ¹⁰ , R ¹² , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ and R ²² each independently represent a hydrogen atom, a hydroxyl group, a (meth) acrylate group, -O- Or a substituted or unsubstituted C1 to C20 alkyl group), -NH-COR '(wherein R' is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), -NH-CO-C = CRR ' R and R 'are each independently a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted A substituted or unsubstituted C2 to C20 alkynyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C3 to C20 cycloalkenyl group, a substituted or unsubstituted C3 to C20 cycloalky Or a substituted or unsubstituted C6 to C30 aryl group.

Wherein R ² , R ⁴ , R ⁶ . At least one of R ⁸ , R ¹⁰ , R ¹² , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ and R ²² is a (meth) acrylate group, -O-COR (wherein R is a hydrogen atom, (Wherein R 'is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), or -NH-CO-C = CRR' (wherein R and R ' Are each independently a hydrogen atom, or a substituted or unsubstituted C1 to C20 alkyl group). As such, R ² , R ⁴ , R ⁶ . ^{R 8, R 10, R 12} , R 14, R 16, R 18, R 20 and R (meth) acrylate group in at least one position of ^{22, -O-COR, -NH-} COR ' and -NH- CO-C = CRR ', the brightness can be improved and the polymerization can be activated to improve the heat resistance, chemical resistance and the like.

Formula 1 and in the ^{2 n 1, n 2, n} 3, n 5, n 7, n 8, n 9, n 10, n 11, n 13 and n ¹⁴ may be from 0 to 10, an integer, respectively, n ⁴ , n ⁶ , n ¹² and n ¹⁵ may each be an integer of 0 to 4.

The squaraine dye may be at least one selected from compounds represented by the following formulas (3) to (8).

(3)

[Chemical Formula 4]

[Chemical Formula 5]

[Chemical Formula 6]

(7)

[Chemical Formula 8]

The length of the squalane dye may be from 1 to 3 nm, and in particular from 1.5 to 2 nm. When the squalene dye has a length within the above range, a core-shell dye having a structure of a core and a shell surrounding the core may be formed. In other words, as the squalene dye has a length within the range, the cyclodextrin can be obtained in a structure surrounding the squalene dye. When other dyes not corresponding to the length of the above range are used, it is difficult to expect improvement in durability as the cyclodextrin is difficult to form a structure surrounding the dye.

The squaraine dye may have a maximum absorption peak at a wavelength of 600 to 800 nm, and more specifically, a maximum absorption peak at a wavelength of 650 to 750 nm. By using a squalene dye having the above spectroscopic characteristics, a photosensitive resin composition for a color filter having a high luminance and a high contrast ratio can be obtained.

When the squaraine dye is used in the photosensitive resin composition for a color filter, the solubility of the squaraine dye in a solvent described later may be 5 or more, specifically 5 to 10. The solubility can be obtained in terms of the amount (g) of the dye dissolved in 100 g of the solvent. 　 When the solubility of the dye is within the above range, compatibility and coloring power with other components in the photosensitive resin composition for a color filter, that is, alkali-soluble resin, photopolymerizable monomer and photopolymerization initiator described later can be ensured and prevention of dye precipitation .

The squalene dye may have excellent heat resistance. That is, the thermal decomposition temperature may be 200 ° C or higher when measured by a thermogravimetric analyzer (TGA), and may be 200-300 ° C.

The cyclodextrin surrounding the squalene dye may be a compound represented by the following formula (9).

[Chemical Formula 9]

In the formula (9), each of R ³¹ to R ³³ independently represents a hydrogen, a hydroxyl group, a substituted or unsubstituted C1 to C10 alcohol group, a substituted or unsubstituted C1 to C10 alkoxy group, an acetate group, (R is a substituted or unsubstituted C1 to C10 alkylene group, and R 'may be a substituted or unsubstituted C1 to C10 alkyl group. Among them, each independently, a substituted or unsubstituted C1 to C10 alcohol group, A substituted or unsubstituted C1 to C10 alkoxy group, an acetate group, or -ROR '. When the substituent is the above-mentioned substituent, the solubility is excellent.

In the above formula (9), m may be an integer of 5 to 10, specifically an integer of 6 to 8. When m is within the above range, solubility is excellent and cyclodextrin tends to form a structure that surrounds the squalene dye.

The cyclodextrin may be at least one selected from compounds represented by the following formulas (10) to (12).

[Chemical formula 10]

(11)

[Chemical Formula 12]

In formulas (10) to (12), R ⁴¹ to R ¹¹⁴ each independently represent a hydrogen, a hydroxyl group, a substituted or unsubstituted C1 to C10 alcohol group, a substituted or unsubstituted C1 to C10 alkoxy group, (R is a substituted or unsubstituted C1 to C10 alkylene group, and R 'is a substituted or unsubstituted C1 to C10 alkyl group.

More specifically, the cyclodextrin may be a compound represented by the following formula (13).

[Chemical Formula 13]

The average particle diameter of the cyclodextrin may be from 5 to 10 Å, specifically from 6 to 9 Å, and more specifically from 7 to 8.5 Å. 　 When the cyclodextrin has an average particle diameter within the above range, a core-shell dye having a structure surrounding the squalene dye can be obtained, and thus the core-shell dye is added to the photosensitive resin composition for a color filter A color filter having excellent durability and high brightness can be realized.

The core-shell dye may include a core composed of the squaraine dye and a shell composed of the cyclodextrin in a molar ratio of 1: 1 to 1: 3, and more specifically, a molar ratio of 1: 1 to 1: 2 . When present in the molar ratio range, the coating layer of the cyclodextrin surrounding the squalene dye can be well formed.

The core-shell dye may be used alone as a green dye, or may be mixed with a coloring dye.

Examples of the coloring dye include triarylmethane dyes, anthraquinone dyes, benzylidene dyes, cyanine dyes, phthalocyanine dyes, azapphyrin dyes, indigo dyes, and xanthene dyes.

The core-shell dye may also be used in admixture with a pigment.

As the pigment, a red pigment, a green pigment, a blue pigment, a yellow pigment, a black pigment and the like can be used.

Examples of the red pigment include C.I. Red pigment 254, C.I. Red pigment 255, C.I. Red pigment 264, C.I. Red pigment 270, C.I. Red pigment 272, C.I. Red pigment 177, C.I. Red pigment 89 and the like. Examples of the green pigment include C.I. Green pigment 36, C.I. Green pigment 7, C.I. Green pigment 58 and the like. Examples of the blue pigments include C.I. Blue pigment 15: 6, C.I. Blue pigment 15, C.I. Blue pigment 15: 1, C.I. Blue pigment 15: 2, C.I. Blue pigment 15: 3, C.I. Blue pigment 15: 4, C.I. Blue pigment 15: 5, C.I. Blue pigment 16, and the like. Examples of the yellow pigments include C.I. Yellow pigments 139 and the like, C.I. Quinophthalone-based pigments such as yellow pigment 138 and the like, C.I. And yellow complex pigments such as yellow pigment 150 and the like. Examples of the black pigment include aniline black, perylene black, titanium black, and carbon black. These pigments can be used singly or in combination of two or more thereof, but are not limited to these examples.

The pigment may be included in the photosensitive resin composition for a color filter in the form of a dispersion. Such a pigment dispersion may be composed of the pigment, a solvent, a dispersing agent, a binder resin, and the like.

As the solvent, ethylene glycol acetate, ethyl cellosolve, propylene glycol methyl ether acetate, ethyl lactate, polyethylene glycol, cyclohexanone, propylene glycol methyl ether and the like can be used. Among them, propylene glycol methyl ether acetate is preferably used .

The dispersant helps to uniformly disperse the pigment in the dispersion, and any nonionic, anionic or cationic dispersant may be used. Specific examples thereof include polyalkylene glycols or esters thereof, polyoxyalkylene, polyhydric alcohol ester alkylene oxide adducts, alcohol alkylene oxide adducts, sulfonic acid esters, sulfonic acid salts, carboxylic acid esters, carboxylic acid salts, alkylamide alkylene oxide adducts Water, alkylamine, and the like. These may be used alone or in combination of two or more.

The binder resin may use an acrylic resin including a carboxyl group, which not only improves the stability of the pigment dispersion but also improves the patterning of pixels.

When the core-shell dye and the pigment are mixed, they may be mixed in a weight ratio of 1: 9 to 9: 1, specifically 3: 7 to 7: 3. When mixed in the weight ratio range, a high luminance and a high contrast ratio can be obtained while maintaining color characteristics.

According to another embodiment, there is provided a photosensitive resin composition for a color filter comprising the core-shell dye.

The photosensitive resin composition for a color filter may include (A) a core-shell dye, (B) an alkali-soluble resin, (C) a photopolymerizable monomer, (D) a photopolymerization initiator and (E) a solvent.

Each component will be described in detail below.

(A) Core-shell dye

The core-shell dye is as described above.

The core-shell dye may be contained in an amount of 0.5 to 10% by weight based on the total amount of the photosensitive resin composition for a color filter, specifically 0.5 to 5% by weight. When the core-shell dye is used within the above range, high brightness and contrast ratio can be expressed in a desired color coordinate.

(B) an alkali-soluble resin

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

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

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

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

Specific examples of the alkali-soluble resin include methacrylic acid / benzyl methacrylate copolymer, methacrylic acid / benzyl methacrylate / styrene copolymer, methacrylic acid / benzyl methacrylate / 2-hydroxyethyl methacrylate copolymer Methacrylic acid / benzyl methacrylate / styrene / 2-hydroxyethyl methacrylate copolymer, but are not limited thereto, and they may be used alone or in combination of two or more.

The weight average molecular weight of the alkali-soluble resin may be 3,000 to 150,000 g / mol, specifically 5,000 to 50,000 g / mol, and more specifically 20,000 to 30,000 g / mol. When the weight average molecular weight of the alkali-soluble resin is within the above-mentioned range, the adhesion to the substrate is excellent, the physical and chemical properties are good, and the viscosity is appropriate.

The acid value of the alkali-soluble resin may be 15 to 60 mgKOH / g, and specifically 20 to 50 mgKOH / g. When the acid value of the alkali-soluble resin is within the above range, excellent pixel resolution can be obtained.

The alkali-soluble resin may be added to the total amount of the photosensitive resin composition for a color filter 　 0.1 to 30% by weight, and more specifically, 　 5 to 20% by weight. When the alkali-soluble resin is contained within the above-mentioned range, the color filter is excellent in developability in the production of a color filter, and the cross-linkability is improved, whereby an excellent surface smoothness can be obtained.

(C) Photopolymerization  Monomer

The photopolymerizable monomer may be a monofunctional or polyfunctional ester of (meth) acrylic acid having at least one ethylenically unsaturated double bond.

Since the photopolymerizable monomer has the ethylenically unsaturated double bond, sufficient polymerization is caused during exposure in the pattern formation step, whereby a pattern having excellent heat resistance, light resistance and chemical resistance can be formed.

Specific examples of the photopolymerizable monomer include ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, neopentyl glycol Acrylate such as di (meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, bisphenol A di (meth) acrylate, pentaerythritol di (Meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol hexa (meth) acrylate, dipentaerythritol di Acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, bisphenol A epoxy (meth) acrylate, ethylene glycol There may be mentioned furnace methyl ether (meth) acrylate, trimethylolpropane tri (meth) acrylate, tris (meth) acryloyloxyethyl phosphate, novolak epoxy (meth) acrylate, and the like.

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

The photopolymerizable monomer may be treated with an acid anhydride to give better developing properties.

The photopolymerizable monomer may be contained in an amount of 0.1 to 30% by weight based on the total amount of the photosensitive resin composition for a color filter, and specifically 5 to 20% by weight. When the photopolymerizable monomer is contained within the above range, pattern characteristics and developability are excellent in the production of a color filter.

(D) Light curing Initiator

The photopolymerization initiator may be an acetophenone-based compound, a benzophenone-based compound, a thioxanthone-based compound, a benzoin-based compound, a triazine-based compound, or an oxime-based compound.

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

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

Examples of the thioxanthone compound include thioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone, 2- Chlorothioxanthone and the like.

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

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

Examples of the oxime compounds include 2- (o-benzoyloxime) -1- [4- (phenylthio) phenyl] -1,2-octanedione, 1- (o- Ethyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl] ethanone.

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

The photopolymerization initiator may be contained in an amount of 0.1 to 5% by weight based on the total amount of the photosensitive resin composition for a color filter, and may be contained in an amount of 1 to 3% by weight. When the photopolymerization initiator is contained within the above range, photopolymerization occurs sufficiently during exposure in the pattern formation process for producing a color filter, and the sensitivity is excellent and the transmittance is improved.

(E) Solvent

The solvent is not particularly limited, but specific examples thereof include alcohols such as methanol and ethanol; Ethers such as dichloroethyl ether, n-butyl ether, diisobutyl ether, methylphenyl ether and tetrahydrofuran; Glycol ethers such as ethylene glycol methyl ether, ethylene glycol ethyl ether and propylene glycol methyl ether; Cellosolve acetates such as methyl cellosolve acetate, ethyl cellosolve acetate and diethyl cellosolve acetate; Carbitols such as methylethylcarbitol, diethylcarbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether and diethylene glycol diethyl ether; Propylene glycol alkyl ether acetates such as propylene glycol methyl ether acetate and propylene glycol propyl ether acetate; Aromatic hydrocarbons such as toluene and xylene; Ketones such as methyl ethyl ketone, cyclohexanone, 4-hydroxy-4-methyl-2-pentanone, methyl-n-propyl ketone, methyl- ; Saturated aliphatic monocarboxylic acid alkyl esters such as ethyl acetate, n-butyl acetate and isobutyl acetate; Lactic acid alkyl esters such as methyl lactate and ethyl lactate; Hydroxyacetic acid alkyl esters such as methylhydroxyacetate, ethylhydroxyacetate and butylhydroxyacetate; Alkoxyalkyl esters such as methoxy methyl acetate, methoxy ethyl acetate, methoxy butyl acetate, ethoxy methyl acetate, and ethoxy ethyl acetate; 3-hydroxypropionic acid alkyl esters such as methyl 3-hydroxypropionate and ethyl 3-hydroxypropionate; 3-alkoxypropionic acid alkyl esters such as methyl 3-methoxypropionate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate and methyl 3-ethoxypropionate; 2-hydroxypropionic acid alkyl esters such as methyl 2-hydroxypropionate, ethyl 2-hydroxypropionate and propyl 2-hydroxypropionate; 2-alkoxypropionic acid alkyl esters such as methyl 2-methoxypropionate, ethyl 2-methoxypropionate, ethyl 2-ethoxypropionate and methyl 2-ethoxypropionate; 2-hydroxy-2-methylpropionic acid alkyl esters such as methyl 2-hydroxy-2-methylpropionate and ethyl 2-hydroxy-2-methylpropionate; 2-alkoxy-2-methylpropionic acid alkyl esters such as methyl 2-methoxy-2-methylpropionate and ethyl 2-ethoxy-2-methylpropionate; Esters such as 2-hydroxyethyl propionate, 2-hydroxy-2-methyl ethyl propionate, hydroxy ethyl acetate and methyl 2-hydroxy-3-methyl butanoate; Or ethyl pyruvate. Examples of the ketone acid esters include N-methylformamide, N, N-dimethylformamide, N-methylformanilide, N-methylacetamide, N, N-dimethylacetamide Benzyl alcohol, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, benzoic acid, Ethyl benzoate, diethyl oxalate, diethyl maleate,? -Butyrolactone, ethylene carbonate, propylene carbonate, phenyl cellosolve acetate, etc. These may be used alone or in combination of two or more.

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

The solvent may be included as a remainder with respect to the total amount of the photosensitive resin composition for a color filter, specifically 20 to 90% by weight. When the solvent is contained within the above range, the photosensitive resin composition is excellent in coating property and excellent flatness can be maintained in a film having a thickness of 3 m or more.

(F) Other additives

The photosensitive resin composition for a color filter may contain at least one selected from the group consisting of malonic acid, malonic acid, and malonic acid to prevent spots and spots upon application, to improve leveling performance, 3-amino-1,2-propanediol; A silane-based coupling agent comprising a vinyl group or (meth) acryloxy group; Leveling agents; Fluorine surfactants; A radical polymerization initiator, and the like.

The photosensitive resin composition for a color filter may further contain an additive such as an epoxy compound in order to improve adhesion with the substrate.

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

The content of the additive can be easily adjusted according to desired properties.

Another embodiment provides a color filter manufactured using the above-described photosensitive resin composition for a color filter. A method of manufacturing the color filter is as follows.

The photosensitive resin composition for a color filter described above is spin-coated or slit-coated on a glass substrate coated with _{N / N} and a protective film of SiN _x having a thickness of 500 to 1500 ANGSTROM To a thickness of 3.1 to 3.4 mu m, respectively. After the application, light is irradiated to form a pattern necessary for the color filter. After the light is irradiated and the coating layer is treated with an alkali developing solution, the unexposed portions of the coating layer are dissolved and a pattern necessary for the color filter is formed. By repeating this process according to the required number of R, G, and B colors, a color filter having a desired pattern can be obtained.

In addition, in the above process, the image pattern obtained by development may be further heated or cured by actinic radiation or the like to further improve crack resistance, solvent resistance, and the like.

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

( Squaraine  Dye manufacture)

Manufacturing example  1-1

398 mg of squalic acid and 2.23 g of 2- (3- (dibutylamino) phenoxy) ethyl acrylate were placed in a 100 mL three-necked flask, and 40 mL of n-butanol and 20 mL of toluene were added. Respectively. Dean-Stark trap set was used to remove the water generated during the reaction and promote the reaction. After completion of the reaction, the reaction mixture was cooled, extracted with methylene chloride, and then subjected to column chromatography to obtain the compound represented by the following formula (3) in a yield of 60%.

(3)

Manufacturing example  1-2

Except that N- (3-dibutylamino) phenyl) acetamide and 3- (diethylamino) phenol were used instead of 2- (3-dibutylamino) phenoxy) ethyl acrylate in Production Example 1-1 , Synthesis was conducted in the same manner as in Production Example 1 to prepare a compound represented by the following formula (4).

[Chemical Formula 4]

Manufacturing example  1-3

Except that 2- (3- (methyl (phenyl) amino) propylamino) ethyl acrylate was used in place of 2 - ((3-dibutylamino) phenoxy) ethyl acrylate in Production Example 1-1, 1, a compound represented by the following formula (5) was prepared.

[Chemical Formula 5]

Manufacturing example  1-4

(Phenyllactamyl) -bis- (ethane-2,1-diyl) diacetate instead of 2 - ((3-dibutylamino) phenoxy) ethyl acrylate in Production Example 1-1 Was synthesized in the same manner as in Production Example 1 to prepare a compound represented by the following formula (6).

[Chemical Formula 6]

Manufacturing example  1-5

(Phenyllactamyl) -bis- (ethane-1,1-diyl) diacetate instead of 2 - ((3-dibutylamino) phenoxy) ethyl acrylate in Production Example 1-1 Was synthesized in the same manner as in Production Example 1 to prepare a compound represented by the following formula (7).

(7)

Manufacturing example  1-6

Butyl-2-methylbenzothiazol-3-yl was used in place of 2 - ((3-dibutylamino) phenoxy) ethyl acrylate in Production Example 1-1. To obtain a compound represented by the following formula (8).

[Chemical Formula 8]

(Core-shell dye preparation)

Manufacturing example  2-1 to 2-6

0.72 g (1 mmol) of each squaraine dye prepared in Preparation Examples 1-1 to 1-6 and triacetyl beta-cyclodextrin (TCI, CAS # 23739- 88.0) was dissolved in 50 ml of dichloromethane. After stirring for 12 hours at room temperature, the solvent was completely removed and dried under reduced pressure to obtain about 2.7 g of a core-shell dye in a solid state. Each of the prepared core-shell dyes was obtained with a structure in which the respective squalain dyes were surrounded by the acetylbeta-cyclodextrin.

[Chemical Formula 13]

Manufacturing example  3-1 to 3-6

0.72 g (1 mmol) of each squaraine dye prepared in Preparation Examples 1-1 to 1-6 and 4.04 g (2 mmol) of acetylbeta-cyclodextrin represented by Formula 13 were dissolved in 50 ml of dichloromethane After stirring for about 12 hours at room temperature, the solvent was completely removed and dried under reduced pressure to give about 2.7 g of a core-shell dye in a solid state. Each of the prepared core-shell dyes was obtained with a structure in which the respective squalain dyes were surrounded by the acetylbeta-cyclodextrin.

(Preparation of Photosensitive Resin Composition for Color Filter)

The specifications of the components used in the production of the photosensitive resin composition for a color filter are as follows.

(A) Core-shell dye

(A-1) Each of the core-shell dyes prepared in Production Examples 2-1 to 2-6 was used.

(A-2) Each of the core-shell dyes prepared in Production Examples 3-1 to 3-6 was used.

( A ' ) Pigment dispersion

(A'-1) C.I. Green pigment 7 was used.

(A'-2) C.I. Green pigment 36 was used.

(B) an alkali-soluble resin

A methacrylic acid / benzyl methacrylate copolymer having a weight average molecular weight of 22,000 g / mol (mixing weight ratio 15/85) was used.

(C) Photopolymerization  Monomer

Dipentaerythritol hexaacrylate was used.

(D) Light curing Initiator

(D-1) 1,2-octanedione was used.

(D-2) 2-Dimethylamino-2- (4-methyl-benzyl) -1- (4-morpholin-4-yl-phenyl) -butan-1-one was used.

(E) Solvent

(E-1) cyclohexanone was used.

(E-2) propylene glycol methyl ether acetate was used.

Example  1 to 6 and Comparative Example  1 and 2

Each component was mixed with the composition shown in Table 1 below to prepare a photosensitive resin composition for a color filter. Specifically, the photopolymerization initiator was dissolved in a solvent, and the mixture was stirred at room temperature for 2 hours. Then, the core-shell dye was added thereto and stirred for 30 minutes. Then, an alkali-soluble resin and a photopolymerizable monomer were added thereto and stirred at room temperature for 2 hours Respectively. The solution was filtered three times to remove impurities to prepare a photosensitive resin composition for a color filter.

                                                  (Unit: wt%) Example Comparative Example One 2 3 4 5 6 One 2 (A) Core-shell dye (A-1) Production Example 2-1 2 - - - - - - - (A-1) Production Example 2-2 - 2 - - - - - - (A-1) Production Example 2-3 - - 2 - - - - - (A-1) Production Example 2-4 - - - 2 - - - - (A-1) Production Example 2-5 - - - - 2 - - - (A-1) Production Example 2-6 - - - - - 2 - - (A ') Pigment dispersion (A'-1) - - - - - - 35 - (A'-2) - - - - - - - 35 (B) an alkali-soluble resin 3.5 3.5 3.5 3.5 3.5 3.5 2.5 2.5 (C) a photopolymerizable monomer 8 8 8 8 8 8 5 5 (D) a photopolymerization initiator (D-1) One One One One One One One One (D-2) 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 (E) Solvent (E-1) 40 40 40 40 40 40 40 40 (E-2) 45 45 45 45 45 45 16 16

Example  7 to 12

Each component was mixed with the composition shown in Table 2 below to prepare a photosensitive resin composition for a color filter. Specifically, the photopolymerization initiator was dissolved in a solvent, and the mixture was stirred at room temperature for 2 hours. Then, the core-shell dye was added thereto and stirred for 30 minutes. Then, an alkali-soluble resin and a photopolymerizable monomer were added thereto and stirred at room temperature for 2 hours Respectively. The solution was filtered three times to remove impurities to prepare a photosensitive resin composition for a color filter.

                                            (Unit: wt%) 　
　 Example 7 8 9 10 11 12 (A) Core-shell dye (A-2) Production Example 3-1 2 - - - - - (A-2) Production Example 3-2 - 2 - - - - (A-2) Production Example 3-3 - - 2 - - - (A-2) Production Example 3-4 - - - 2 - - (A-2) Production Example 3-5 - - - - 2 - (A-2) Production Example 3-6 - - - - - 2 (B) an alkali-soluble resin 3.5 3.5 3.5 3.5 3.5 3.5 (C) a photopolymerizable monomer 8 8 8 8 8 8 (D) a photopolymerization initiator (D-1) One One One One One One (D-2) 0.5 0.5 0.5 0.5 0.5 0.5 (E) Solvent (E-1) 40 40 40 40 40 40 (E-2) 45 45 45 45 45 45

Evaluation 1: Durability evaluation

The photosensitive resin composition for color filters prepared in Examples 1 to 12 and Comparative Examples 1 and 2 was diluted with a 50% N-methyl pyrrolidone (propylene glycol methyl ether acetate) solution to prepare a 0.005 wt% solution. Each solution was recorded using a UV (SHIMADZU UV-1800) instrument at the maximum absorption wavelength and the results are reported in Table 3 below.

Maximum absorption wavelength (650 nm) Example 1 1.56 Example 2 1.28 Example 3 1.53 Example 4 1.49 Example 5 1.45 Example 6 1.61 Example 7 1.37 Example 8 1.65 Example 9 1.50 Example 10 1.24 Example 11 1.57 Example 12 1.39 Comparative Example 1 0.23 Comparative Example 2 0.27

Through Table 3, in Examples 1 to 12 using core-shell dyes having a structure in which cyclodextrin encapsulated squaraine dye according to one embodiment, Comparative Example 1 using a pigment instead of the core-shell dye And 2, the light resistance was increased.

Evaluation 2: Evaluation of luminance

The photosensitive resin composition for color filters prepared in Examples 1 to 12 and Comparative Examples 1 and 2 was coated on a 1 mm thick glass substrate having a thickness of 1 to 3 占 퐉 and washed on a hot plate at 90 占 폚 for 2 minutes And dried to obtain a coating film. Subsequently, a coating film was obtained by exposure using a high-pressure mercury lamp having a dominant wavelength of 365 nm. And dried in a hot air circulating drying oven at 200 ° C for 5 minutes. The color coordinates (x, y) and the luminance (Y) of the pixel layer were measured using a spectrophotometer (MCPD3000, Otsuka electronic Co.), and the results are shown in Table 4 below.

Color coordinates Luminance x y Y Example 1 0.293 0.554 67.0 Example 2 0.286 0.561 67.3 Example 3 0.280 0.579 65.1 Example 4 0.295 0.575 66.7 Example 5 0.303 0.558 67.7 Example 6 0.301 0.559 68.1 Example 7 0.298 0.557 66.4 Example 8 0.287 0.554 65.9 Example 9 0.300 0.559 67.1 Example 10 0.303 0.560 68.0 Example 11 0.291 0.562 67.5 Example 12 0.274 0.557 65.2 Comparative Example 1 0.273 0.561 63.3 Comparative Example 2 0.285 0.557 64.2

Through Table 4, in Examples 1 to 12 using core-shell dyes having a structure in which cyclodextrin surrounds squaraine dye according to one embodiment, Comparative Example 1 using a pigment instead of the core-shell dye And 2, it can be seen that high brightness can be obtained.

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

Claims (11)

A core comprising at least one squaraine dye selected from compounds represented by the following formulas (1) and (2); And
A shell containing a cyclodextrin represented by the following general formula (9)
≪ / RTI >
[Chemical Formula 1]

(2)

(In the above formulas (1) and (2)
Each of R ¹ , R ³ , R ⁵ , R ⁷ , R ⁹ , R ¹¹ , R ¹³ , R ¹⁵ , R ¹⁷ , R ¹⁹ and R ²¹ independently represents a single bond, -O-, -NH-, , A substituted or unsubstituted C1 to C20 alkylene group, a substituted or unsubstituted C2 to C20 alkenylene group, a substituted or unsubstituted C2 to C20 alkynylene group, a substituted or unsubstituted C1 to C20 alkoxysilane A substituted or unsubstituted C3 to C20 cycloalkylene group, a substituted or unsubstituted C3 to C20 cycloalkenylene group, a substituted or unsubstituted C3 to C20 cycloalkynylene group, or a substituted or unsubstituted C6 to C30 aryl Rengi,
R ² , R ⁴ , R ⁶ . R ⁸ , R ¹⁰ , R ¹² , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ and R ²² each independently represent a hydrogen atom, a hydroxyl group, a (meth) acrylate group, -O- Or a substituted or unsubstituted C1 to C20 alkyl group), -NH-COR '(wherein R' is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), -NH-CO-C = CRR ' R and R 'are each independently a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C2 to C20 alkenyl group, a substituted or unsubstituted A substituted or unsubstituted C2 to C20 alkynyl group, a substituted or unsubstituted C1 to C20 alkoxy group, a substituted or unsubstituted C3 to C20 cycloalkyl group, a substituted or unsubstituted C3 to C20 cycloalkenyl group, a substituted or unsubstituted C3 to C20 cycloalky Or a substituted or unsubstituted C6 to C30 aryl group,
Wherein ^{R 2, R 4, R 6} . At least one of R ⁸ , R ¹⁰ , R ¹² , R ¹⁴ , R ¹⁶ , R ¹⁸ , R ²⁰ and R ²² is a (meth) acrylate group, -O-COR (wherein R is a hydrogen atom, (Wherein R 'is a hydrogen atom or a substituted or unsubstituted C1 to C20 alkyl group), or -NH-CO-C = CRR' (wherein R and R ' Are each independently a hydrogen atom, or a substituted or unsubstituted C1 to C20 alkyl group)
and ^{n 1, n 2, n 3} , n 5, n 7, n 8, n 9, n 10, n 11, n 13 and n ¹⁴ is an integer from 0 to 10, respectively,
n ⁴ , n ⁶ , n ¹² and n ¹⁵ are each an integer of 0 to 4)
[Chemical Formula 9]

(In the above formula (9)
Each of R ³¹ to R ³³ is independently hydrogen, a hydroxy group, a substituted or unsubstituted C1 to C10 alcohol group, a substituted or unsubstituted C1 to C10 alkoxy group, an acetate group, or -ROR ' An unsubstituted C1 to C10 alkylene group, R 'is a substituted or unsubstituted C1 to C10 alkyl group,
and m is an integer of 5 to 10.)
The method according to claim 1,
Wherein the squalene dye is at least one selected from compounds represented by the following formulas (3) to (8).
(3)

[Chemical Formula 4]

[Chemical Formula 5]

[Chemical Formula 6]

(7)

[Chemical Formula 8]

The method according to claim 1,
Wherein the squaraine dye has a length of 1 to 3 nm.
The method according to claim 1,
Wherein the squaraine dye has a maximum absorption peak at a wavelength of 600 to 800 nm.
The method according to claim 1,
Wherein the cyclodextrin is at least one selected from compounds represented by the following general formulas (10) to (12).
[Chemical formula 10]

(11)

[Chemical Formula 12]

(In the above formulas 10 to 12,
Each of R ⁴¹ to R ¹¹⁴ independently represents a hydrogen atom, a hydroxy group, a substituted or unsubstituted C1 to C10 alcohol group, a substituted or unsubstituted C1 to C10 alkoxy group, an acetate group, or -ROR ' And R 'is a substituted or unsubstituted C1 to C10 alkyl group.
The method according to claim 1,
Wherein the cyclodextrin is a compound represented by the following formula (13).
[Chemical Formula 13]

The method according to claim 1,
Wherein the cyclodextrin has an average particle diameter of 5 to 10 Angstroms.
The method according to claim 1,
Wherein the core-shell dye comprises the core and the shell in a molar ratio of 1: 1 to 1: 3.
(A) the core-shell dye of any one of claims 1 to 8;
(B) an alkali-soluble resin;
(C) a photopolymerizable monomer;
(D) a photopolymerization initiator; And
(E) Solvent
Wherein the photosensitive resin composition is a photosensitive resin composition for a color filter.
10. The method of claim 9,
The photosensitive resin composition for a color filter
(A) from 0.5 to 10% by weight of the core-shell dye;
(B) 0.1 to 30% by weight of the alkali-soluble resin;
(C) 0.1 to 30% by weight of the photopolymerizable monomer;
(D) 0.1 to 5% by weight of the photopolymerization initiator; And
(E) the solvent remaining amount
Wherein the photosensitive resin composition is a photosensitive resin composition for a color filter.
A color filter produced by using the photosensitive resin composition for a color filter according to claim 9.