KR102109544B1 - Color filter and liquid crystal display comprising the same - Google Patents

Abstract

A thin film transistor positioned on the substrate; A plurality of color patterns positioned on the thin film transistors and spaced apart from each other; And a light blocking layer positioned on the plurality of color patterns, wherein the plurality of color patterns includes a red pattern, a green pattern, a first blue pattern, and a second blue pattern, and the red pattern, green pattern, and first blue color The patterns are positioned parallel to each other, at right angles to the light-shielding layer, and the second blue pattern is positioned parallel to each other to the light-shielding layer, at right angles to the red pattern, the green pattern, and the first blue pattern, The light shielding layer is positioned on the second blue pattern, the light shielding layer is an organic black pigment, and does not include a blue pigment, the light shielding layer includes a red pigment and a violet pigment, and the light shielding layer includes the red pigment and violet In addition to the pigment, further comprising at least one selected from the group consisting of yellow pigments and orange pigments, the light-shielding layer comprises an inorganic black pigment, and of the inorganic black pigment The content of the red pigment, the violet pigment, the yellow pigment and the orange pigment is less than the content of each, and a liquid crystal display comprising the color filter is provided.

Description

Color filter and liquid crystal display device including same {COLOR FILTER AND LIQUID CRYSTAL DISPLAY COMPRISING THE SAME}

The present description relates to a color filter and a liquid crystal display device including the same.

The liquid crystal display device is one of the most widely used flat panel display devices, and consists of two display panels having electrodes and a liquid crystal layer interposed therebetween, thereby applying voltage to the electrodes to rearrange the liquid crystal molecules of the liquid crystal layer. It is a display device that controls the amount of transmitted light.

Among the liquid crystal display devices, a structure in which an electric field generating electrode is provided on each of the two display panels is mainly used. Among these, a plurality of thin film transistors and pixel electrodes are arranged in a matrix form on one display panel (hereinafter referred to as a “thin-film transistor display panel”), and red, green, and other displays (hereinafter referred to as “common electrode display panels”) are formed. And a structure in which a blue color pattern is formed and a common electrode covers the entire surface.

However, since such a liquid crystal display device is formed on a display panel having a different color pattern from the pixel electrode, it is difficult to accurately align the pixel electrode and the color pattern, and alignment errors may occur. In order to solve this, a color filter on array (COA) in which color patterns and pixel electrodes are formed on the same display panel has been proposed.

On the other hand, in the case of a black column spacer that imparts light-shielding properties to an existing transparent column spacer, black is realized by mixing various colors of organic pigments such as a red pigment, a blue pigment, a yellow pigment, a violet pigment, and an orange pigment to achieve light-shielding properties, or , It is common to realize black by mixing lactam-based organic black and blue pigment. However, due to the nature of the spacer directly contacting the liquid crystal, liquid crystal contamination by the pigment is the most reliable issue, and the higher the pigment content and the higher the liquid crystal solubility of the pigment, the greater the risk of such liquid crystal contamination. Among them, in the case of a blue pigment that suppresses the transmittance of a long wavelength in the visible region, the solubility in liquid crystal tends to be high, although it is a necessary color material for realizing black, and there is a possibility of causing a problem in driving liquid crystal afterwards. high. The driving failure due to the contamination of the liquid crystal of the blue pigment appears at a higher frequency when UV irradiation is performed for driving the RM (Reactive Mesogen) liquid crystal.

One embodiment is to provide a color filter capable of uniformly shielding light in the entire wavelength range and minimizing liquid crystal contamination.

Another embodiment is to provide a liquid crystal display device including the color filter.

One embodiment includes a thin film transistor positioned on a substrate; A plurality of color patterns positioned on the thin film transistors and spaced apart from each other; And a light blocking layer positioned on the plurality of color patterns, wherein the plurality of color patterns includes a red pattern, a green pattern, a first blue pattern, and a second blue pattern, and the red pattern, green pattern, and first blue color The patterns are positioned parallel to each other, at right angles to the light-shielding layer, and the second blue pattern is positioned parallel to each other to the light-shielding layer, at right angles to the red pattern, the green pattern, and the first blue pattern, The light shielding layer is positioned on the second blue pattern, the light shielding layer is an organic black pigment, and does not include a blue pigment, the light shielding layer includes a red pigment and a violet pigment, and the light shielding layer includes the red pigment and violet In addition to the pigment, further comprising at least one selected from the group consisting of yellow pigments and orange pigments, the light-shielding layer comprises an inorganic black pigment, and of the inorganic black pigment The content of the red pigment, violet pigment, yellow pigment and orange pigment provides a color filter that is less than the respective content.

An insulating layer may be positioned between the plurality of color patterns and the light blocking layer.

The second blue pattern and the light-blocking layer may be prepared by applying and drying the composition, followed by exposing and developing the dried composition. At this time, the second blue pattern may be prepared by applying and drying a composition comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, a blue pigment, and a solvent, followed by exposing and developing the dried composition. And, the composition is 10% to 30% by weight of the binder resin; 1 to 10% by weight of a photopolymerizable monomer; 0.1 to 5% by weight of a photopolymerization initiator; Blue pigment 10% to 30% by weight; And a residual amount of solvent. Furthermore, the composition may further include a 3-amino-1,2-propanediol, a silane coupling agent, a leveling agent, a fluorine-based surfactant, a radical polymerization initiator, or a combination thereof.

The light shielding layer may be prepared by applying and drying a composition comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, an organic black pigment, an inorganic black pigment, and a solvent, followed by exposing and developing the dried composition. At this time, the composition is 10% to 30% by weight of the binder resin; 1 to 10% by weight of a photopolymerizable monomer; 0.1 to 5% by weight of a photopolymerization initiator; Organic black pigment 10% to 30% by weight; 1 to 5% by weight of an inorganic black pigment; And a residual amount of solvent. Furthermore, the composition may further include a 3-amino-1,2-propanediol, a silane coupling agent, a leveling agent, a fluorine-based surfactant, a radical polymerization initiator, or a combination thereof.

Another embodiment provides a liquid crystal display device including the color filter.

The liquid crystal display device may include a thin film transistor positioned on a lower substrate; The color filter located on the thin film transistor; An upper substrate facing the lower substrate and positioned on the color filter; And a liquid crystal layer interposed between the color filter and the upper substrate.

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

The color filter according to an embodiment has excellent light shielding property while minimizing liquid crystal contamination by a blue pigment, and can be usefully used in a liquid crystal display device.

1 is a plan view showing a conventional color filter structure.
2 is a cross-sectional view showing a conventional color filter structure.
3 is a plan view showing a color filter structure according to an embodiment.
4 is a cross-sectional view showing a color filter structure according to an embodiment.

Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided to ensure that the disclosed contents are thorough and complete and that the spirit of the present invention is sufficiently conveyed to those skilled in the art.

In the drawings, the thickness of the layers and regions are exaggerated for clarity. Further, when it is said that a layer is "on" ("above") another layer or substrate, it may be formed directly on (or above) another layer or substrate, or a third layer may be interposed between them. . Parts indicated by the same reference numerals throughout the specification refer to the same components.

Unless otherwise specified herein, "alkyl group" means a C1 to C20 alkyl group, "alkenyl group" means a C2 to C20 alkenyl group, and "cycloalkenyl group" means a C3 to C20 cycloalkenyl group. , "Heterocycloalkenyl group" means a C3 to C20 heterocycloalkenyl group, "aryl group" means a C6 to C20 aryl group, and "arylalkyl group" means a C6 to C20 arylalkyl group, and an "alkylene group" Column C1 to C20 means an alkylene group, "arylene group" means a C6 to C20 arylene group, "alkylarylene group" means a C6 to C20 alkylarylene group, and "heteroarylene group" means a C3 to C20 hetero Means an arylene group, and "alkoxyl group" means a C1 to C20 alkoxyl group.

Unless otherwise specified herein, "substitution" means at least one hydrogen atom is a halogen atom (F, Cl, Br, I), a hydroxy group, a C1 to C20 alkoxy group, a nitro group, a cyano group, an amine group, an imino group, Azido group, amidino group, hydrazino group, hydrazono group, carbonyl group, carbamyl group, thiol group, ester group, ether group, carboxyl group or salt thereof, sulfonic acid group or salt thereof, phosphoric acid or salt thereof, C1 To C20 alkyl group, C2 to C20 alkenyl group, C2 to C20 alkynyl group, C6 to C20 aryl group, C3 to C20 cycloalkyl group, C3 to C20 cycloalkenyl group, C3 to C20 cycloalkynyl group, C2 to C20 heterocycloalkyl group, C2 To C20 heterocycloalkenyl group, C2 to C20 heterocycloalkynyl group, C3 to C20 heteroaryl group, or a combination thereof.

In addition, unless otherwise specified herein, "hetero" means that at least one hetero atom of at least one of N, O, S and P is included in the formula.

Unless otherwise specified in this specification, "combination" means mixing or copolymerization.

In the present specification, cardo-based resin means a resin in which at least one functional group selected from the group consisting of the following Chemical Formulas 1-1 to 1-11 is included in the backbone in the resin.

Unless otherwise defined in the chemical formula in the present specification, when a chemical bond is not drawn at a position where a chemical bond is to be drawn, it means that a hydrogen atom is bonded at the position.

Also, unless otherwise specified in this specification, "*" refers to a part connected to the same or different atom or chemical formula.

A color filter according to an embodiment includes a thin film transistor positioned on a substrate; A plurality of color patterns positioned on the thin film transistors and spaced apart from each other; And a light blocking layer positioned on the plurality of color patterns, wherein the plurality of color patterns includes a red pattern, a green pattern, a first blue pattern, and a second blue pattern, and the red pattern, green pattern, and first blue color The patterns are positioned parallel to each other, at a right angle to the light-shielding layer, and the second blue pattern is positioned parallel to the light-shielding layer, but at a right angle to the red pattern, the green pattern, and the first blue pattern. For example, the red pattern, the green pattern, and the first blue pattern may be formed in a stripe shape along the vertical direction, but the second blue pattern may be formed in a stripe shape along the horizontal direction, and the light blocking layer may be formed in the stripe shape. 2 It can be located on the blue pattern.

1 and 2, a color filter structure including a conventional black column spacer has a structure in which a black color spacer is simply placed on a stripe or island-shaped color pattern (or on an insulating film positioned on the color pattern). It was. The liquid crystal display device including the color filter having such a structure has a problem in that the liquid crystal in the liquid crystal display device is contaminated by the blue pigment in the blue pattern constituting the color pattern, leading to a decrease in reliability. That is, the biggest cause of deterioration of the reliability of the liquid crystal display device is the blue pigment in the blue pattern constituting the color filter in the liquid crystal display device, and it is practically difficult to reduce the amount of the blue pigment, which has been a problem to date.

According to one embodiment, by changing the structure of the blue pattern constituting the color pattern of the color filter differently from the conventional structure, a highly reliable color filter and a liquid crystal display device including the same can be implemented.

3 and 4, the color filter according to an embodiment is disposed such that an additional blue pattern (second blue pattern) is positioned at a region overlapping the light blocking layer region, that is, the light blocking layer is the second blue Located on the pattern, in the entire color filter structure, shading may occur evenly in the entire wavelength range, which ultimately prevents contamination of the liquid crystal and secures excellent shading properties, thereby manufacturing a reliable color filter and a liquid crystal display device including the same Makes it possible.

The light blocking layer may include at least two or more selected from the group consisting of red pigments, violet pigments, yellow pigments, and orange pigments.

The light blocking layer may further include an inorganic black pigment. The inorganic black pigment may be titanium black, carbon black, etc., but is not limited thereto.

The content of the inorganic black pigment may be less than the content of each of the red pigment, violet pigment, yellow pigment, and orange pigment. When the content of the inorganic black pigment is greater than the content of each of the red pigment, violet pigment, yellow pigment, and orange pigment, the dielectric constant becomes high, adversely affecting TFT driving, or near infrared rays (Near) required for alignment when stacked on the TFT pattern. IR) A problem that the transmittance falls may occur.

An insulating layer may be positioned between the plurality of color patterns and the light blocking layer. The insulating layer may be located in a space between color patterns adjacent to each other. The insulating film may be formed of an organic film or an inorganic film, but is more preferably formed of an inorganic film. This is because when the insulating film is formed of an organic film, it is difficult to implement a step using a light shielding layer. In addition, the insulating film cannot be patterned, and unlike the overcoat layer, which is baked immediately after the front coating, only a portion required by the photolithography process can be patterned.

The second blue pattern and the light-blocking layer may be prepared by applying and drying the composition, followed by exposing and developing the dried composition.

For example, the second blue pattern is coated with a second blue pattern composition comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, a blue pigment, and a solvent, followed by drying and exposing and developing the dried second blue pattern composition. Can be produced.

The second blue pattern composition is 15% to 30% by weight of a binder resin; 1 to 10% by weight of a photopolymerizable monomer; 0.1 to 5% by weight of a photopolymerization initiator; Blue pigment 10% to 30% by weight; And a residual amount of solvent.

The blue pigment is 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. Phthalocyanine-based pigments such as blue pigment 16, and the like, but are not limited thereto.

For example, the light-shielding layer may be prepared by applying and drying a light-shielding layer composition comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, an organic black pigment, and a solvent, followed by exposing and developing the dried light-shielding layer composition, The organic black pigment may include at least two or more selected from the group consisting of red pigment, violet pigment, yellow pigment and orange pigment.

The light-shielding layer composition is an organic black pigment, and does not include a blue pigment, and thus, it is possible to minimize reliability degradation due to liquid crystal contamination. Furthermore, the light-shielding layer composition does not use an inorganic black pigment alone as a black pigment, and thus has excellent dielectric constant and near-infrared (Near IR) transmittance, and thus is well formed for internal hardening. Conventional light-shielding layer composition is used as an organic black pigment and / or inorganic black pigment including a blue pigment as a black pigment, the voltage holding ratio (VHR) is lowered or long wavelength due to liquid crystal contamination by the blue pigment There was a problem in that the transmittance in the region was too high, so that the light shielding rate of the visible light in the long-wavelength region was low, and the effectiveness as a light shielding layer was poor. According to one embodiment, by the second blue pattern of the novel structure, the blue pigment in the light-shielding layer composition is not included at all, and even if the inorganic black pigment is included, only a small amount is included to solve the above-described problem.

Examples of the red pigment are 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 179, C.I. And red pigment 89. Examples of the violet pigment, C.I. Violet Pigment 1, C.I. Violet Pigment 19, C.I. Violet Pigment 23, C.I. Violet Pigment 27, C.I. Violet Pigment 29, C.I. Violet Pigment 30, C.I. Violet Pigment 32, C.I. Violet Pigment 37, C.I. Violet Pigment 40, C.I. Violet Pigment 42, C.I. Violet pigment 50 and the like. Examples of the yellow pigment is C.I. Isoindoline pigments such as yellow pigment 139, C.I. Quinophthalone-based pigments such as yellow pigment 138, C.I. And nickel complex pigments such as yellow pigment 150 and the like. Examples of the orange pigment is C.I. Orange pigment 64, C.I. Orange pigment 71 etc. are mentioned. The pigment may be used alone or in combination of two or more, and is not limited to these examples.

The light shielding layer composition may further include an inorganic black pigment.

Examples of the inorganic black pigment include titanium black and carbon black.

As described above, the content of the inorganic black pigment may be less than the content of each of the red pigment, violet pigment, yellow pigment, and orange pigment, and thus the dielectric constant and near-infrared (Near IR) transmittance are excellent, which has an advantageous effect on internal curing. have.

The light-shielding layer composition is 15% to 30% by weight of a binder resin; 1 to 10% by weight of a photopolymerizable monomer; 0.1 to 5% by weight of a photopolymerization initiator; Blue pigment 10% to 30% by weight; And a residual amount of solvent.

For example, the first blue pattern may be prepared using a composition having the same or similar composition to the second blue pattern composition, but differs in that it forms a right angle to the second blue pattern.

For example, the red pattern may be prepared using a composition having the same or similar composition as the first blue pattern composition, except that a red pigment is used instead of the blue pigment in the first blue pattern composition, and the first blue Parallel to the pattern.

For example, the green pattern may be prepared using a composition having the same or similar composition as the first blue pattern composition, except that a green pigment is used instead of the blue pigment in the first blue pattern composition, and the first blue Parallel to the pattern.

The manufacturing method of the second blue pattern and the light shielding layer may be specifically described as follows.

(1) Application and coating film formation (drying)

The second blue pattern and the light-shielding layer composition are formed to a desired thickness using a method such as spin or slit coating method, roll coating method, screen printing method, applicator method, or the like, on a substrate such as a glass substrate or an IZO substrate, each of which has been pre-treated. After coating, the solvent is removed by heating (drying) at 70 ° C to 100 ° C for 1 to 10 minutes to obtain a coating film.

(2) Exposure step

In order to form a pattern necessary for the obtained coating film, after interposing a mask to implement a second blue pattern and a light-blocking layer pattern, an active line of 200 nm to 500 nm is irradiated. As a light source used for irradiation, a low-pressure mercury lamp, a high-pressure mercury lamp, an ultra-high-pressure mercury lamp, a metal halide lamp, an argon gas laser, etc. may be used. In some cases, X-rays, electron beams, etc. may be used.

The exposure amount varies depending on the type, blending amount and dry film thickness of each component of the composition, but when using a high pressure mercury lamp, it is 500 mJ / cm ² or less (by a 365 nm sensor).

(3) Development stage

Following the exposure step, by using an alkaline aqueous solution as a developer, dissolving and removing unnecessary portions to form a pattern by remaining only the exposed portions.

(4) Post-treatment step

In the above process, the post-heating process may be performed to obtain an excellent pattern in terms of heat resistance, light resistance, adhesion, crack resistance, chemical resistance, high strength, and storage stability.

Hereinafter, the composition of the second blue pattern composition and the light shielding layer composition will be described in more detail.

The composition may further include a color correcting agent such as an anthraquinone pigment, perylene pigment, phthalocyanine pigment, and azo pigment.

Dispersants may be used together to disperse the blue pigment and the organic black pigment. Specifically, the pigment may be surface-treated with a dispersant in advance, or may be used by adding a dispersant together with an organic black pigment when preparing the composition.

As the dispersant, a nonionic dispersant, anionic dispersant, or cationic dispersant may be used. Specific examples of the dispersant include polyalkylene glycol and esters thereof, polyoxyalkylenes, polyalcohol esters alkylene oxide adducts, alcoholalkylene oxide adducts, sulfonic acid esters, sulfonic acid salts, carboxylic acid esters, and carboxylic acids Salts, alkylamide alkylene oxide adducts, alkyl amines, and the like, and these may be used alone or in combination of two or more.

Examples of commercially available products of the dispersing agent include DISPERBYK-101, DISPERBYK-130, DISPERBYK-140, DISPERBYK-160, DISPERBYK-161, DISPERBYK-162, DISPERBYK-163, DISPERBYK-164, DISPERBYK-165, DISPERBYK -166, DISPERBYK-170, DISPERBYK-171, DISPERBYK-182, DISPERBYK-2000, DISPERBYK-2001, etc .; EFKA-47, EFKA-47EA, EFKA-48, EFKA-49, EFKA-100, EFKA-400, EFKA-450 from EFKA Chemical, etc .; Zeneka's Solsperse 5000, Solsperse 12000, Solsperse 13240, Solsperse 13940, Solsperse 17000, Solsperse 20000, Solsperse 24000GR, Solsperse 27000, Solsperse 28000, etc .; Or Ajinomoto's PB711 or PB821.

The dispersant may be included in an amount of 0.1 to 15% by weight based on the total amount of the light-shielding layer composition. When the dispersant is included within the above range, the dispersibility of the light-shielding layer composition may be excellent.

The blue pigment and the organic black pigment may be pretreated using a water-soluble inorganic salt and a wetting agent. When the blue pigment and the organic black pigment are pretreated, the average particle diameter of the blue pigment and the organic black pigment can be refined.

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

The kneading may be performed at a temperature of 40 ° C to 100 ° C, and the filtration and washing may be performed by washing the inorganic salt with water or the like and then filtering.

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

The binder resin may include cardo-based binder resin, acrylic-based binder resin, or a combination thereof.

The acrylic binder resin is a first ethylenically unsaturated monomer 　 And a copolymer of a second ethylenically unsaturated monomer copolymerizable therewith, which is a resin comprising at least one acrylic repeating unit. In particular, when an acrylic binder resin is used, reliability of the liquid crystal display device can be secured.

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 combinations thereof.

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

The second ethylenically unsaturated monomers include aromatic vinyl compounds such as styrene, α-methylstyrene, vinyltoluene, and vinylbenzyl methyl ether; Methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxy butyl (meth) acrylate, benzyl (meth) acrylate, Unsaturated carboxylic acid ester compounds such as cyclohexyl (meth) acrylate and phenyl (meth) acrylate; Unsaturated carboxylic acid amino alkyl 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; Vinyl cyanide compounds such as (meth) acrylonitrile; Unsaturated amide compounds such as (meth) acrylamide; And the like, and these may be used alone or in combination of two or more.

Specific examples of the acrylic binder resin are methacrylic acid / benzyl methacrylate copolymer, methacrylic acid / benzyl methacrylate / styrene copolymer, methacrylic acid / benzyl methacrylate / 2-hydroxyethyl methacrylate copolymer Copolymer, methacrylic acid / benzyl methacrylate / styrene / 2-hydroxyethyl methacrylate copolymer, and the like, but are not limited thereto, and these may be used alone or in combination of two or more.

The acrylic binder resin may have a weight average molecular weight of 3,000 g / mol to 150,000 g / mol, such as 5,000 g / mol to 50,000 g / mol, such as 7,000 g / mol to 30,000 g / mol. 　 When the weight average molecular weight of the acrylic binder resin is within the above range, physical and chemical properties of the light-shielding layer composition are excellent.

The acid value of the acrylic binder resin may be 15 mgKOH / g to 150 mgmgKOH / g, for example, 80 mgKOH / g to 130 mgmgKOH / g /. When the acid value of the acrylic binder resin is within the above range, the resolution of the pixel pattern is excellent.

When the binder resin is a cardo-based binder resin, the developability of the composition containing it is excellent, and the sensitivity at the time of photocuring is good, and thus, the fine pattern formation property is excellent.

The cardo-based binder resin may include a repeating unit represented by Formula 2 below.

[Formula 1]

In Chemical Formula 1,

R ¹ and R ² are each independently a hydrogen atom or a substituted or unsubstituted (meth) acryloyloxy alkyl group,

R ³ and R ⁴ are each independently a hydrogen atom, a halogen atom, or a substituted or unsubstituted C1 to C20 alkyl group,

Z ¹ is a single bond, O, CO, SO ₂ , CR ⁷ R ⁸ , SiR ⁹ R ¹⁰ (where R ⁷ to R ¹⁰ are each independently a hydrogen atom, or a substituted or unsubstituted C1 to C20 alkyl group), Or any one of the linking group represented by the following formula 1-1 to formula 1-11,

[Formula 1-1]

[Formula 1-2]

[Formula 1-3]

[Formula 1-4]

[Formula 1-5]

(In the above formula 1-5,

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

[Formula 1-6]

[Formula 1-7]

[Formula 1-8]

[Formula 1-9]

[Formula 1-10]

[Formula 1-11]

Z ² is an acid dianhydride residue,

m1 and m2 are each independently an integer from 0 to 4,

n is an integer from 1 to 30.

The cardo-based binder resin may include a functional group represented by the following Chemical Formula 2 on at least one of both ends.

[Formula 2]

In Chemical Formula 2,

Z ³ may be represented by the following formulas 2-1 to 2-7.

[Formula 2-1]

(In the formula 2-1, R ^b and R ^c are each independently a hydrogen atom, a substituted or unsubstituted C1 to C20 alkyl group, an ester group, or an ether group.)

[Formula 2-2]

[Formula 2-3]

[Formula 2-4]

[Formula 2-5]

(In Formula 2-5, R ^d is O, S, NH, a substituted or unsubstituted C1 to C20 alkylene group, a C1 to C20 alkylamine group, or a C2 to C20 alkenylamine group.)

[Formula 2-6]

[Formula 2-7]

The cardo-based binder resin includes, for example, fluorene-containing compounds such as 9,9-bis (4-oxiranylmethoxyphenyl) fluorene; Benzenetetracarboxylic acid anhydride, naphthalenetetracarboxylic acid anhydride, biphenyltetracarboxylic acid anhydride, benzophenonetetracarboxylic acid anhydride, pyromellitic dihydride, cyclobutanetetracarboxylic acid anhydride, pe Anhydride compounds such as lenetetracarboxylic acid anhydride, tetrahydrofurantetracarboxylic acid anhydride, and tetrahydrophthalic anhydride; Glycol compounds such as ethylene glycol, propylene glycol, and polyethylene glycol; Alcohol compounds such as methanol, ethanol, propanol, n-butanol, cyclohexanol, and benzyl alcohol; Solvent compounds such as propylene glycol methylethyl acetate and N-methylpyrrolidone; Phosphorus compounds such as triphenylphosphine; And amine or ammonium salt compounds such as tetramethylammonium chloride, tetraethylammonium bromide, benzyldiethylamine, triethylamine, tributylamine, and benzyltriethylammonium chloride.

The weight average molecular weight of the cardo-based binder resin may be 500 g / mol to 50,000 g / mol, such as 1,000 g / mol to 30,000 g / mol. When the weight average molecular weight of the cardo-based binder resin is within the above range, there is no loss of film thickness during development, and a good pattern can be obtained.

The binder resin may be included in 15% by weight to 30% by weight, for example, 20% by weight to 30% by weight with respect to the total amount of the second blue pattern composition or the light blocking layer composition. When the binder resin is included in the above range, excellent resolution can be obtained.

As the photopolymerizable monomer, a monofunctional or polyfunctional ester of (meth) acrylic acid having at least one ethylenically unsaturated double bond may be used as a monomer or oligomer.

The photopolymerizable monomer has the ethylenically unsaturated double bond, thereby causing sufficient polymerization during exposure in the pattern forming process to form a pattern excellent in heat resistance, light resistance, and chemical resistance.

The photopolymerizable monomers are, for example, ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, propylene glycol di (meth) acrylate, neopentyl glycol di ( Meth) acrylate, 1,4-butanediol di (meth) acrylate, 1,6-hexanediol di (meth) acrylate, bisphenol A di (meth) acrylate, pentaerythritol di (meth) acrylate, penta Erythritol tri (meth) acrylate, pentaerythritol tetra (meth) acrylate, pentaerythritol hexa (meth) acrylate, dipentaerythritol di (meth) acrylate, dipentaerythritol tri (meth) acrylate , Dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, bisphenol A epoxy (meth) acrylate, ethylene glycol monomethyl Ter (meth) acrylate, trimethylol propane tri (meth) acrylate, tris (meth) acryloyloxyethyl phosphate, novolac epoxy (meth) acrylate) or a combination thereof.

Examples of commercially available products of the photopolymerizable monomer are as follows. The (meth) acrylic acid is one example of a polyfunctional ester, such as doah Gosei Kagaku Kogyo's (primary)社Aronix M-101 ^®, the same M-111 ^®, the same M-114 ^®; KAYARAD TC-110S ^® of Nihon Kayaku Co., Ltd., and TC-120S ^® of the same; 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 ^®; Nippon Kayaku (Note)社of KAYARAD HDDA ^®, copper HX-220 ^®, copper R-604 ^®, and the like; 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, Dong M-8030 ^®, same 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 ^®. The above products may be used alone or in combination of two or more.

The photopolymerizable monomer may be used by treating with an acid anhydride to impart better developability.

The photopolymerizable monomer may be included in 1% by weight to 10% by weight, for example, 3% by weight to 10% by weight based on the total amount of the second blue pattern composition or the light blocking layer composition. When the photopolymerizable monomer is included within the above range, curing occurs sufficiently during exposure in the pattern forming process, thereby improving reliability.

As the photopolymerization initiator, an acetophenone-based compound, a benzophenone-based compound, a thioxanthone-based compound, a benzoin-based compound, a triazine-based compound, an oxime-based compound, or a combination thereof may be used.

Examples of the acetophenone-based compound, 2,2'-diethoxy acetophenone, 2,2'-dibutoxy acetophenone, 2-hydroxy-2-methylpropiophenone, pt-butyltrichloro acetophenone, pt -Butyldichloro acetophenone, 4-chloro acetophenone, 2,2'-dichloro-4-phenoxy acetophenone, 2-methyl-1- (4- (methylthio) phenyl) -2-morpholinopropane-1 -One, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butan-1-one, and the like.

Examples of the benzophenone compounds include benzophenone, benzoyl benzoate, methyl benzoyl benzoate, 4-phenyl benzophenone, hydroxy benzophenone, acrylated benzophenone, 4,4'-bis (dimethyl amino) benzophenone, 4,4 And '-bis (diethylamino) benzophenone, 4,4'-dimethylaminobenzophenone, 4,4'-dichlorobenzophenone, 3,3'-dimethyl-2-methoxybenzophenone, and the like.

Examples of the thioxanthone-based compound include thioxanthone, 2-methylthioxanthone, isopropyl thioxanthone, 2,4-diethyl thioxanthone, 2,4-diisopropyl thioxanthone, 2- And chlorothioxanthone.

Examples of the benzoin-based compound include benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzyldimethyl ketal, and the like.

Examples of the triazine-based compound, 2,4,6-trichloro-s-triazine, 2-phenyl-4,6-bis (trichloromethyl) -s-triazine, 2- (3 ', 4' -Dimethoxystyryl) -4,6-bis (trichloromethyl) -s-triazine, 2- (4'-methoxynaphthyl) -4,6-bis (trichloromethyl) -s-triazine , 2- (p-methoxyphenyl) -4,6-bis (trichloromethyl) -s-triazine, 2- (p-tolyl) -4,6-bis (trichloro methyl) -s-triazine , 2-biphenyl-4,6-bis (trichloro methyl) -s-triazine, bis (trichloromethyl) -6-styryl-s-triazine, 2- (naphtho-1-yl)- 4,6-bis (trichloromethyl) -s-triazine, 2- (4-methoxynaphtho-1-yl) -4,6-bis (trichloromethyl) -s-triazine, 2-4 And bis (trichloromethyl) -6-piperonyl-s-triazine, 2-4-bis (trichloromethyl) -6- (4-methoxystyryl) -s-triazine, and the like. .

Examples of the oxime-based compound are O-acyloxime-based compounds, 2- (O-benzoyloxime) -1- [4- (phenylthio) phenyl] -1,2-octanedione, 1- (O-acetyloxime) -1- [9-ethyl-6- (2-methylbenzoyl) -9H-carbazol-3-yl] ethanone, O-ethoxycarbonyl-α-oxyamino-1-phenylpropan-1-one, etc. Can be used. Specific examples of the O-acyloxime-based compound include 1,2-octanedione, 2-dimethylamino-2- (4-methylbenzyl) -1- (4-morpholin-4-yl-phenyl) -butane- 1-one, 1- (4-phenylsulfanylphenyl) -butane-1,2-dione-2-oxime-O-benzoate, 1- (4-phenylsulfanylphenyl) -octane-1,2-dione -2-Oxime-O-benzoate, 1- (4-phenylsulfanylphenyl) -octane-1-one oxime-O-acetate, 1- (4-phenylsulfanylphenyl) -butane-1-one oxime- O-acetate can be used.

In addition to the above compound, the photopolymerization initiator may use a carbazole-based compound, a diketone compound, a sulfonium borate-based compound, a diazo-based compound, an imidazole-based compound, or a biimidazole-based compound.

The photopolymerization initiator may be used together with a photosensitizer that causes a chemical reaction by absorbing light, becoming excited, and transmitting its energy.

Examples of the photosensitizer include tetraethylene glycol bis-3-mercapto propionate, pentaerythritol tetrakis-3-mercapto propionate, dipentaerythritol tetrakis-3-mercapto propionate, etc. Can be heard.

The photopolymerization initiator may be included in an amount of 0.1 wt% to 5 wt%, for example, 0.1 wt% to 3 wt%, based on the total amount of the second blue pattern composition or the light blocking layer composition. When the photopolymerization initiator is included within the above range, curing may occur sufficiently during exposure in a pattern forming process to obtain excellent reliability.

As the solvent, materials having compatibility with the pigment, the binder resin, the photopolymerizable monomer, and the photopolymerization initiator but not reacting may be used.

Examples of the solvent include alcohols such as methanol and ethanol; Ethers such as dichloroethyl ether, n-butyl ether, diisoamyl ether, methylphenyl ether, and tetrahydrofuran; Glycol ethers such as ethylene glycol monomethyl ether and ethylene glycol monoethyl ether; Cellosolve acetates such as methyl cellosolve acetate, ethyl cellosolve acetate, and diethyl cellosolve acetate; Carbitols such as methyl ethyl carbitol, diethyl carbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methylethyl 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-n-butyl ketone, methyl-n-amyl ketone, and 2-heptanone ; Saturated aliphatic monocarboxylic acid alkyl esters such as ethyl acetate, n-butyl acetate, and isobutyl acetate; Lactic acid esters such as methyl lactate and ethyl lactate; Oxyacetic acid alkyl esters such as methyl oxyacetate, ethyl oxyacetate, and butyl oxyacetate; Alkoxy acetate alkyl esters such as methyl methoxy acetate, ethyl methoxy acetate, butyl methoxy acetate, methyl ethoxy acetate, and ethyl ethoxy acetate; 3-oxy propionic acid alkyl esters such as methyl 3-oxy propionate and ethyl 3-oxy propionate; 3-alkoxy propionic acid alkyl esters such as methyl 3-methoxy propionate, ethyl 3-methoxy propionate, ethyl 3-ethoxy propionate and methyl 3-ethoxy propionate; 2-oxy propionic acid alkyl esters, such as methyl 2-oxy propionate, ethyl 2-oxy propionate, and propyl 2-oxy propionic acid; 2-alkoxy propionic acid alkyl esters such as methyl 2-methoxy propionate, ethyl 2-methoxy propionate, ethyl 2-ethoxy propionate and methyl 2-ethoxy propionate; 2-oxy-2-methyl propionic acid esters such as methyl 2-oxy-2-methyl propionate and ethyl 2-oxy-2-methyl propionate, methyl 2-methoxy-2-methyl propionate, and 2-ethoxy-2- Monooxy monocarboxylic acid alkyl esters of 2-alkoxy-2-methyl propionic acid alkyls such as ethyl methyl propionate; Esters such as ethyl 2-hydroxypropionate, ethyl 2-hydroxy-2-methyl propionate, ethyl hydroxy acetate, and methyl 2-hydroxy-3-methyl butanoate; And ketone acid esters such as ethyl pyruvate, and N-methylformamide, N, N-dimethylformamide, N-methylformanirad, N-methylacetamide, and N, N-dimethylacetamide , N-methylpyrrolidone, dimethyl sulfoxide, benzyl ethyl ether, dihexyl ether, acetylacetone, isophorone, capronic acid, caprylic acid, 1-octanol, 1-nonanol, benzyl alcohol, benzyl acetate, benzoic acid And high-boiling solvents such as ethyl, diethyl oxalate, diethyl maleate, γ butyrolactone, ethylene carbonate, propylene carbonate, and phenyl cellosolve acetate.

Among them, in consideration of compatibility and reactivity, glycol ethers such as ethylene glycol monoethyl ether and ethylene glycol dimethyl ether; Ethylene glycol alkyl ether acetates such as ethyl cellosolve acetate; Esters such as ethyl 2-hydroxypropionate; Carbitols 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 in a residual amount, such as 40% by weight to 80% by weight, relative to the total amount of the second blue pattern composition or the light blocking layer composition. When the solvent is included in the above range, the processability becomes excellent as the light-shielding layer composition has an appropriate viscosity.

Meanwhile, the second blue pattern composition or the light-shielding layer composition may further include an additive of malonic acid, 3-amino-1,2-propanediol, silane coupling agent, leveling agent, fluorine surfactant, radical polymerization initiator, or a combination thereof. It can contain.

The silane coupling agent may have a reactive substituent such as a vinyl group, a carboxyl group, a methacryloxy group, an isocyanate group, an epoxy group, etc. in order to improve adhesion to a substrate.

Examples of the silane coupling agent include trimethoxysilyl benzoic acid, γmethacryloxypropyl trimethoxysilane, vinyl triacetoxysilane, vinyl trimethoxysilane, γisocyanate propyl triethoxysilane, γglycine And doxypropyltrimethoxysilane, β-epoxycyclohexyl) ethyltrimethoxysilane, and the like, or a mixture of two or more thereof.

The silane coupling agent may be included in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the light shielding layer composition.

The second blue pattern composition or the light-shielding layer composition may further include a surfactant, for example, a fluorine-based surfactant, for the purpose of improving coating properties and preventing defects.

The fluorine is a surfactant, the ^{BM Chemie社BM-1000 ®,} BM-1100 ® , and the like; Dai Nippon Inki Chemical Industry Co., Ltd. Mecca Pack F 142D ^® , Copper F 172 ^® , Copper F 173 ^® , Copper F 183 ^®, etc .; Sumitomo M. (Note)社Pro rod FC-135 ^®, the same FC-170C ^®, copper FC-430 ^®, the same FC-431 ^®, and the like; Asahi Grass Co., Saffron S-112 ^® of社, such S-113 ^®, the same S-131 ^®, the same S-141 ^®, the same S-145 ^®, and the like; Toray Silicone ^® (Note)社SH-28PA, the same -190 ^®, may be used a fluorine-containing surfactants commercially available under the name such as copper ^{-193 ®, SZ-6032 ®,} SF-8428 ®.

The surfactant may be used in an amount of 0.001 to 5 parts by weight based on 100 parts by weight of the second blue pattern composition or the light-shielding layer composition.

In addition, a certain amount of other additives such as antioxidants and stabilizers may be added to the second blue pattern composition or the light-shielding layer composition within a range that does not impair physical properties.

Another embodiment provides a liquid crystal display device including the color filter.

The liquid crystal display device may include a thin film transistor positioned on a lower substrate; The color filter located on the thin film transistor; An upper substrate facing the lower substrate and positioned on the color filter; And a liquid crystal layer interposed between the color filter and the upper substrate.

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

(Example)

Preparation Example 1 to Preparation Example 3

Compositions according to Preparation Examples 1 to 3 were prepared with the compositions shown in Tables 1 to 3 below using the components mentioned below.

Specifically, after the photopolymerization initiator was dissolved in a solvent, the mixture was sufficiently stirred at room temperature for 30 minutes or more, and then a binder resin and a photopolymerizable monomer were sequentially added thereto, followed by stirring at room temperature for about 1 hour. Subsequently, after adding other additives to the obtained stirring solution and stirring for about 10 minutes, a pigment dispersion solution was added and stirred at room temperature for 2 hours or more. Then, the product was filtered three times to remove impurities, thereby preparing a composition.

Preparation Example 1

(Unit: g) ingredient content Binder resin Acrylic binder resin (RY-20, Showadenko) 25.770 Photopolymerizable monomer Dipentaerythritol hexaacrylate (Japan catalyst) 4.349 Photopolymerization initiator IRG369 (BASF) 0.312 NCI831 (adeka company) 0.117 menstruum PGMEA 33.633 EDM 16.400 Pigment dispersion Mill base with B15: 6 (Tokushiki) 18.119 additive γ-glycidoxypropyl trimethoxysilane (S-510, Chisso) 1.300

Preparation Example 2

(Unit: g) ingredient content Binder resin Acrylic binder resin (RY-20, Showadenko) 20.580 Photopolymerizable monomer Dipentaerythritol hexaacrylate (Japan catalyst) 3.473 Photopolymerization initiator IRG369 (BASF) 0.400 NCI831 (adeka company) 0.150 menstruum PGMEA 27.469 EDM 16.400 Pigment dispersion Mill base with R179 (Tokushiki) 20.086 Mill base with V29 (Tokushiki) 7.029 Mill base with carbon black (Tokushiki) 2.110 additive γ-glycidoxypropyl trimethoxysilane (S-510, Chisso) 1.300

Preparation Example 3

(Unit: g) ingredient content Binder resin Cardo-based binder resin (V259ME, Shin Nippon Steel) 13.333 Photopolymerizable monomer Dipentaerythritol hexaacrylate (Japan catalyst) 2.250 Photopolymerization initiator IRG369 (BASF) 0.400 NCI831 (adeka company) 0.150 menstruum PGMEA 18.368 EDM 16.400 Pigment dispersion Mill base with R179 (Tokushiki) 21.086 Mill base with V29 (Tokushiki) 7.029 Mill base with B15: 6 (Tokushiki) 17.571 Mill base with carbon black (Tokushiki) 2.110 additive γ-glycidoxypropyl trimethoxysilane (S-510, Chisso) 1.300

Example 1

Red pattern composition (the same as in Production Example 1, except that the red pigment (R179) was used instead of the blue pigment (B15: 6)), green pattern composition (that used the green pigment (G58) instead of the blue pigment (B15: 6)) Except the same as Preparation Example 1), the first blue pattern composition (Preparation Example 1) and the second blue pattern composition (Preparation Example 1) on a 10 cm * 10 cm IZO substrate spin coating machine (Mikasa, Opticoat MS-A150) Each coated with a thickness of 2.0 μm, but the red pattern, the green pattern, and the first blue pattern are disposed parallel to each other, and the second blue pattern is coated to form a right angle with the red pattern, the green pattern, and the first blue pattern. Then, using a hot-plate (soft-baking or pre-baking) at 80 ℃ for 150 seconds, and exposed to 50mJ using an exposure machine (Ushio, HB-50110AA) and photo mask . Subsequently, 150 s were developed with a 0.2% by weight aqueous potassium hydroxide (KOH) solution using a developer (SVS, SSP-200), followed by hard-baking (hard-baking or post-baking) at 230 ° C. for 30 minutes. Did. Thereafter, the light-shielding layer composition (Production Example 2) was coated (2.0 μm thick), exposed, developed and hard-baked on the second blue pattern in the same manner to obtain a patterned specimen.

Comparative Example 1

A patterned specimen was obtained in the same manner as in Example 1, except that the composition according to Production Example 3, not Production Example 2, was used as the light-shielding layer composition.

Comparative Example 2

A patterned specimen was obtained in the same manner as in Example 1, except that the second blue pattern was not patterned.

evaluation

The optical densities per μm of the specimens according to Example 1, Comparative Example 1 and Comparative Example 2, voltage retention (60 ° C. 10 Hz) and transmittance at 750 nm were measured, and are shown in Table 4 below.

Example 1 Comparative Example 1 Comparative Example 2 Optical density (OD) (/ ㎛) 3.89 3.85 3.24 Voltage retention rate (%) 86 32 88 Transmittance (750nm) (%) 0.3 0.3 19

Through Table 4, when the blue pigment is included in the light-shielding layer composition, it can be seen that the voltage retention rate is lowered, from which it can be seen that the blue pigment in the light-shielding layer composition is the main cause of liquid crystal contamination. In addition, even if the blue pigment is not included in the light-shielding layer composition, when the second blue pattern as in one embodiment does not exist, the optical density is lowered and the visible light-shielding rate of the long-wavelength region is lowered, and used for light-shielding purposes It can be confirmed that it is not suitable for.

The present invention is not limited to the above embodiments, but may be manufactured in various different forms, and those skilled in the art to which the present invention pertains have other specific forms without changing the technical spirit or essential features of the present invention. It will be understood that can be implemented as. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive.

1: Red pattern 2: Green pattern
3: first blue pattern 4: second blue pattern
5: light-shielding layer 6: column spacer

Claims (11)

A thin film transistor positioned on the substrate;
A plurality of color patterns positioned on the thin film transistors and spaced apart from each other; And
Light-shielding layer positioned on the plurality of color patterns
Including,
The plurality of color patterns includes a red pattern, a green pattern, a first blue pattern, and a second blue pattern,
The red pattern, the green pattern and the first blue pattern are positioned parallel to each other, and form a right angle to the light blocking layer,
The second blue pattern is positioned parallel to the light shielding layer, but at a right angle to the red pattern, the green pattern, and the first blue pattern, and the light shielding layer is positioned on the second blue pattern,
The light-blocking layer is an organic black pigment, and does not contain a blue pigment.
The light blocking layer includes a red pigment and a violet pigment,
The light-blocking layer further includes at least one selected from the group consisting of yellow pigments and orange pigments, in addition to the red pigment and violet pigment,
The light shielding layer includes an inorganic black pigment,
The content of the inorganic black pigment is less than the content of each of the red pigment, violet pigment, yellow pigment and orange pigment.
According to claim 1,
A color filter in which an insulating film is positioned between the plurality of color patterns and the light blocking layer.
According to claim 1,
The second blue pattern and the light blocking layer,
After applying and drying the composition,
A color filter prepared by exposing and developing the dried composition.
According to claim 3,
The second blue pattern,
After applying and drying a composition comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, a blue pigment and a solvent,
A color filter prepared by exposing and developing the dried composition.
The method of claim 4,
The composition is 10% by weight to 30% by weight of a binder resin; 1 to 10% by weight of a photopolymerizable monomer; 0.1 to 5% by weight of a photopolymerization initiator; Blue pigment 10% to 30% by weight; And a residual amount of solvent.
The method of claim 4,
The composition further comprises a 3-amino-1,2-propanediol, a silane coupling agent, a leveling agent, a fluorine-based surfactant, a radical polymerization initiator, or a combination thereof.
According to claim 3,
The light shielding layer,
After applying and drying a composition comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, an organic black pigment, an inorganic black pigment and a solvent,
A color filter prepared by exposing and developing the dried composition.
The method of claim 7,
The composition is 10% by weight to 30% by weight of a binder resin; 1 to 10% by weight of a photopolymerizable monomer; 0.1 to 5% by weight of a photopolymerization initiator; Organic black pigment 10% to 30% by weight; 1 to 5% by weight of an inorganic black pigment; And a residual amount of solvent.
The method of claim 7,
The composition further comprises a 3-amino-1,2-propanediol, a silane coupling agent, a leveling agent, a fluorine-based surfactant, a radical polymerization initiator, or a combination thereof.
A liquid crystal display device comprising the color filter of any one of claims 1 to 9.
The method of claim 10,
The liquid crystal display device,
A thin film transistor positioned on the lower substrate;
The color filter located on the thin film transistor;
An upper substrate facing the lower substrate and positioned on the color filter; And
A liquid crystal layer interposed between the color filter and the upper substrate
A liquid crystal display device comprising a.

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