TWI732379B - Photosensitive resin composition, photosensitive resin layer using the same and color filter - Google Patents

Abstract

A photosensitive resin composition including (A) a binder resin; (B) a colorant including a dye and a pigment; (C) a photopolymerizable compound; (D) a photopolymerization initiator; and (E) a solvent, wherein the dye includes one type of a squarylium-based compound and at least two types of a phthalocyanine-based compound, a photosensitive resin layer manufactured using the photosensitive resin composition, and a color filter including the same.

Description

Photosensitive resin composition, photosensitive resin layer and color filter using the same

The present invention relates to a photosensitive resin composition, a photosensitive resin layer using the photosensitive resin composition, and a color filter.

Among many types of displays, liquid crystal display devices have the advantages of lightness, thinness, low cost, low operating power consumption and improved adhesion to integrated circuits, and have been more widely used in laptop computers, monitors, and televisions ( TV) screen. The liquid crystal display device includes a lower substrate on which a black matrix, color filters and indium tin oxide pixel electrodes are formed, and an upper substrate on which an active circuit part including a liquid crystal layer, a thin film transistor and a capacitor layer is formed, and Indium tin oxide pixel electrode.

The color filter is formed in the pixel portion, and a plurality of color filters are sequentially stacked in a predetermined order for forming each pixel (generally, it consists of multiple colors (usually red (R), green (G) and blue)). (B) Three primary colors) are formed), and the black matrix layer is arranged on the transparent substrate in a predetermined pattern to form the boundary between the pixels. The pigment dispersion method, which is one of various methods of forming a color filter, provides a colored film by repeating a series of processes, such as coating a photopolymerizable composition containing a colorant on a transparent substrate including a black matrix , Expose the formed pattern to light, remove the unexposed part with a solvent, and thermally cure it. The colored photosensitive resin composition used to manufacture the color filter according to the pigment dispersion method generally contains an alkali-soluble resin, a photopolymerizable monomer, a photopolymerization initiator, an epoxy resin, a solvent, other additives, and the like. The pigment dispersion method with the above characteristics is actively used in the manufacture of liquid crystal displays such as mobile phones, laptop computers, monitors, and televisions. However, the photosensitive resin composition for a color filter using a pigment dispersion method having many advantages needs to exhibit further improved performance and excellent pattern characteristics. Specifically, there is an urgent need for high color reproducibility, high brightness, and high contrast characteristics.

The color filter manufactured using the pigment-type photosensitive resin composition has limitations in brightness and contrast due to the particle size of the pigment. In addition, color image sensor devices used for image sensors require smaller dispersed particle diameters to form fine patterns. In order to meet the requirements, attempts have been made to prepare photosensitive resin compositions by introducing dyes that do not form particles instead of pigments, thereby realizing color filters with improved color characteristics (for example, brightness and contrast) and including the color filters Tablet display device.

However, dyes have a problem of poor reliability compared with pigments, and therefore, researches on coloring agents that can improve both color characteristics and reliability are continued.

The embodiment aims to provide a photosensitive resin composition having improved heat resistance, chemical resistance, and light resistance.

Another embodiment aims to provide a photosensitive resin layer manufactured using the photosensitive resin composition.

Another embodiment aims to provide a color filter manufactured using the photosensitive resin layer.

Embodiments of the present invention include a photosensitive resin composition comprising: (A) a binder resin; (B) a colorant, including dyes and pigments; (C) a photopolymerizable compound; (D) ) A photopolymerization initiator; and (E) a solvent, wherein the dye includes one type of square acid cyanine compound (squarylium-based compound) and at least two different types of phthalocyanine compound.

The total amount of the squaraine-based compound and the total amount of the phthalocyanine-based compound may be included in a weight ratio of 1:1 to 1:9.

在化學式1中， R¹ 及R² 各自獨立地為經取代或未經取代的C1到C20烷基、經取代或未經取代的C3到C20環烷基或經取代或未經取代的C6到C20芳基，且 R³ 及R⁴ 各自獨立地為經取代或未經取代的C1到C20烷基或經取代或未經取代的C6到C20芳基， [化學式101]

其中，在化學式101中， R¹⁰¹ 到R¹¹⁶ 各自獨立地為氫原子、鹵素原子、經取代或未經取代的C1到C20烷基、經取代或未經取代的C3到C20烷氧基、經取代或未經取代的C6到C20芳基或經取代或未經取代的C6到C20芳氧基。The squaraine-based compound may be composed of a core and a shell represented by Chemical Formula 1, and the phthalocyanine-based compound may be represented by Chemical Formula 101: [Chemical Formula 1]

In Chemical Formula 1, R ¹ and R ² are each independently a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, or a substituted or unsubstituted C6 to C20 alkyl group. A C20 aryl group, and R ³ and R ⁴ are each independently a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C6 to C20 aryl group, [Chemical formula 101]

Wherein, in the chemical formula 101, R ¹⁰¹ to R ¹¹⁶ are each independently a hydrogen atom, a halogen atom, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 alkoxy group, a A substituted or unsubstituted C6 to C20 aryl group or a substituted or unsubstituted C6 to C20 aryloxy group.

在化學式1-1中， R⁶ 為經取代或未經取代的C1到C20烷基。R ¹ and R ² may each independently have to include a functional group represented by Chemical Formula 1-1 and a chiral carbon. [Chemical formula 1-1]

In Chemical Formula 1-1, R ⁶ is a substituted or unsubstituted C1 to C20 alkyl group.

[化學式2-2]

在化學式2-1及化學式2-2中， L¹ 為單鍵、經取代或未經取代的C1到C10亞烷基或經取代或未經取代的C3到C10亞環烷基， L² 為經取代或未經取代的C1到C10亞烷基或經取代或未經取代的C3到C10亞環烷基，且 R⁵ 及R⁶ 各自獨立地為經取代或未經取代的C1到C20烷基。R1 and R2 may each independently be represented by Chemical Formula 2-1 or Chemical Formula 2-2. [Chemical formula 2-1]

[Chemical formula 2-2]

In Chemical Formula 2-1 and Chemical Formula 2-2, L ¹ is a single bond, a substituted or unsubstituted C1 to C10 alkylene group or a substituted or unsubstituted C3 to C10 cycloalkylene group, and L ² is A substituted or unsubstituted C1 to C10 alkylene group or a substituted or unsubstituted C3 to C10 cycloalkylene group, and R ⁵ and R ⁶ are each independently a substituted or unsubstituted C1 to C20 alkane base.

[化學式5]

在化學式4及化學式5中， L^a 到L^d 各自獨立地為單鍵或經取代或未經取代的C1到C10亞烷基。The shell may be represented by Chemical Formula 4 or Chemical Formula 5. [Chemical formula 4]

[Chemical formula 5]

In Chemical Formula 4 and Chemical Formula 5, L ^a to L ^d each independently substituted or unsubstituted C1 to C10 alkylene is a single bond or via.

[化學式5-1]

The shell may be represented by Chemical Formula 4-1 or Chemical Formula 5-1. [Chemical formula 4-1]

[Chemical formula 5-1]

[化學式7]

[化學式8]

[化學式9]

[化學式10]

[化學式11]

[化學式12]

[化學式13]

[化學式14]

[化學式15]

[化學式16]

[化學式17]

[化學式18]

[化學式19]

The squaraine-based compound may be represented by one of Chemical Formula 6 to Chemical Formula 19: [Chemical Formula 6]

[Chemical formula 7]

[Chemical formula 8]

[Chemical formula 9]

[Chemical formula 10]

[Chemical formula 11]

[Chemical formula 12]

[Chemical formula 13]

[Chemical formula 14]

[Chemical formula 15]

[Chemical formula 16]

[Chemical formula 17]

[Chemical formula 18]

[Chemical formula 19]

[化學式103]

[化學式104]

在化學式102到化學式104中， R¹¹⁷ 及R¹¹⁸ 各自獨立地為經取代或未經取代的C1到C20烷基， R¹¹⁹ 及R¹²⁰ 各自獨立地為鹵素原子，且 R¹²¹ 為經取代或未經取代的C6到C20芳基。One of R ¹⁰¹ to R ¹⁰⁴ , one of R ¹⁰⁵ to R ¹⁰⁸ , one of R ¹⁰⁹ to R ¹¹² , and one of R ¹¹³ to R ¹¹⁶ may each independently be substituted or unsubstituted The aryloxy group, wherein the substituted or unsubstituted aryloxy group may be represented by Chemical Formula 102 or may be represented by Chemical Formula 103 or Chemical Formula 104. [Chemical formula 102]

[Chemical formula 103]

[Chemical formula 104]

In Chemical Formula 102 to Chemical Formula 104, R ¹¹⁷ and R ¹¹⁸ are each independently a substituted or unsubstituted C1 to C20 alkyl group, R ¹¹⁹ and R ¹²⁰ are each independently a halogen atom, and R ¹²¹ is a substituted or unsubstituted C1 to C20 alkyl group. Substituted C6 to C20 aryl.

在化學式105中， R¹²² 為經取代或未經取代的C3到C20環烷基。One of R ¹⁰¹ to R ¹⁰⁴ , one of R ¹⁰⁵ to R ¹⁰⁸ , and one of R ¹⁰⁹ to R ¹¹² may each independently be a substituted or unsubstituted aryloxy group, and R ¹¹³ to R ¹¹⁶ may each independently be a hydrogen atom or a halogen atom, wherein the substituted or unsubstituted aryloxy group may be represented by Chemical Formula 105. [Chemical formula 105]

In the chemical formula 105, R ¹²² is a substituted or unsubstituted C3 to C20 cycloalkyl group.

[化學式107]

[化學式108]

。The phthalocyanine-based compound may be represented by one of Chemical Formula 106 to Chemical Formula 108: [Chemical Formula 106]

[Chemical formula 107]

[Chemical formula 108]

.

The dye may be contained in an amount of 1% by weight to 30% by weight based on the total amount of the photosensitive resin composition.

Based on the total amount of the photosensitive resin composition, the photosensitive resin composition may include: 1% to 20% by weight of the (A) binder resin; 2% to 40% by weight of the (B) colorant; 1% to 20% by weight of the (C) photopolymerizable compound; 0.1% to 5% by weight of the (D) photopolymerization initiator; and the balance of the (E) ) Solvent.

The photosensitive resin composition may also include a coupling agent selected from the group consisting of malonic acid, 3-amino-1,2-propanediol, a vinyl group or (meth)acryloyloxy group, a leveling agent, and a fluorine-based surface active agent. And at least one additive in a radical polymerization initiator.

Another embodiment provides a photosensitive resin layer manufactured using the photosensitive resin composition.

Another embodiment provides a color filter including a photosensitive resin layer.

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

The photosensitive resin composition according to the embodiment may have improved light resistance and reliability, such as heat resistance, chemical resistance, etc., and thus may provide a color filter having color characteristics.

Hereinafter, embodiments of the present invention will be described in detail. However, these embodiments are exemplary, and the present invention is not limited thereto and the present invention is defined by the scope of the claims.

In this specification, when no specific definition is provided otherwise, "substituted" means that at least one hydrogen atom of the compound is replaced by the following substituents: halogen atom (F, Cl, Br or I), hydroxyl, C1 to C20 alkane Oxy, nitro, cyano, amine, imino, azide, amidino, hydrazino, hydrazino, carbonyl, carbamyl, thiol group, ester, ether, Carboxyl or its salt, sulfonic acid or its salt, phosphoric acid or its salt, C1 to C20 alkyl, C2 to C20 alkenyl, C2 to C20 alkynyl, C6 to C30 aryl, C3 to C20 cycloalkyl, C3 to C20 cycloalkenyl, C3 to C20 cycloalkynyl, C2 to C20 heterocycloalkyl, C2 to C20 heterocycloalkenyl, C2 to C20 heterocycloalkynyl, or a combination thereof.

In this specification, when no specific definition is provided otherwise, "heterocycloalkyl", "heterocycloalkenyl", "heterocycloalkynyl" and "heterocycloalkylene" refer to N, O, S or Each cyclic compound of cycloalkyl, cycloalkenyl, cycloalkynyl, and cycloalkylene having at least one heteroatom in P.

When no specific definition is provided otherwise, "(meth)acrylate" as used herein refers to both "acrylate" and "methacrylate".

In this specification, when no additional definition is provided, the term "combination" means mixing or copolymerization. In addition, "copolymerization" refers to block copolymerization to random copolymerization, and "copolymer" refers to block copolymer to random copolymerization.

In the chemical formulas of this specification, unless a specific definition is provided otherwise, when the chemical bond is not drawn where it should be given, the hydrogen bond is at the position.

In addition, in this specification, when no additional definition is provided, "*" means a chiral carbon. Chiral carbon indicates a central carbon with four different functional groups around the carbon, and the actual image of a compound with a chiral carbon does not overlap with its mirror image.

In addition, unless a definition is provided in this specification, the chiral carbon includes one selected from the group consisting of R configuration, S configuration, racemic mixtures thereof, and combinations thereof.

In this specification, when no specific definition is provided otherwise, "*" indicates the point where the same or different atoms or chemical formulas are connected.

The embodiment provides a photosensitive resin composition comprising: (A) a binder resin; (B) a colorant, including dyes and pigments; (C) a photopolymerizable compound; (D) photopolymerization Initiator; and (E) solvent, wherein the dye contains one type of squaraine-based compound and at least two types of phthalocyanine-based compound.

In order to improve the heat resistance and light resistance of the photosensitive resin composition, heat stabilizers and antioxidants are usually introduced, and in order to improve chemical resistance, polyfunctional monomers or thermosetting adhesive resins are usually incorporated. However, due to these Conventional improvement methods have difficulties in simultaneously improving heat resistance, chemical resistance, and light resistance. Therefore, there is a great need for novel reliability improvement methods.

The photosensitive resin composition according to the embodiment is processed in a direction completely different from the conventional reliability improvement method, and therefore uses a mixture colorant of dye and pigment, wherein the dye uses one type of squaraine-based compound and at least two A mixture of different types of phthalocyanine-based compounds, and thus can improve both reliability and processability.

Specifically, the dye having the above-mentioned configuration can help the photosensitive resin composition according to the embodiment to have excellent durability even in a thermal process at a high temperature by suppressing the one type of squaraine-based compound, because The at least two different types of phthalocyanine-based compounds function as antioxidants.

In addition, squaraine-based compounds and phthalocyanine-based compounds have excellent (green) spectral characteristics and high molar extinction coefficient (high molar extinction coefficient), and therefore can achieve excellent high color when used with yellow pigment dispersions, etc. Coordinates (high color coordinate).

Hereinafter, each component will be explained in detail.

(B) Coloring agent

In the present invention, the colorant includes pigments and dyes as well as one type of squaraine compound and at least two different types of phthalocyanine compound as dyes.

When the dye in the colorant includes at least two different types of phthalocyanine-based compounds, the reliability can be further improved compared to the case where one type of phthalocyanine-based compound is included.

For example, the at least two different types of phthalocyanine-based compounds may be included in the same amount. In this case, the reliability improvement effect of the photosensitive resin composition can be further doubled.

The total amount of squaraine-based compounds may be equal to or less than the total amount of phthalocyanine-based compounds.

The total amount of the squarylium compound and the total amount of the phthalocyanine compound may be included in a weight ratio of 1:1 to 1:9, for example, a weight ratio of 1:4 to 1:6. When the total amount of squaraine-based compounds and the total amount of phthalocyanine-based compounds are included in the weight ratio range, the chemical resistance relative to several types of organic solvents can be greatly improved and the chemical resistance relative to several types of organic solvents can be greatly improved. The light resistance of the light source and the effect of heat resistance at high temperatures.

在化學式1中， R¹ 及R² 各自獨立地為經取代或未經取代的C1到C20烷基、經取代或未經取代的C3到C20環烷基或經取代或未經取代的C6到C20芳基，且 R³ 及R⁴ 各自獨立地為經取代或未經取代的C1到C20烷基或經取代或未經取代的C6到C20芳基。For example, the squaraine-based compound may be composed of a core represented by Chemical Formula 1 and a shell. [Chemical formula 1]

In Chemical Formula 1, R ¹ and R ² are each independently a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, or a substituted or unsubstituted C6 to C20 alkyl group. A C20 aryl group, and R ³ and R ⁴ are each independently a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C6 to C20 aryl group.

在化學式1-1中， R⁶ 為經取代或未經取代的C1到C20烷基。For example, R ¹ and R ² may each independently have to include a functional group represented by Chemical Formula 1-1 and a chiral carbon. [Chemical formula 1-1]

In Chemical Formula 1-1, R ⁶ is a substituted or unsubstituted C1 to C20 alkyl group.

The core-shell compound including the core represented by Chemical Formula 1 has excellent green spectral characteristics and high molar extinction coefficient and can be used as a green dye. However, the compound is insufficient in durability compared to pigments, and thus may deteriorate brightness during a baking process performed after being formed into a color resist. The dye according to the embodiment uses at least two different types of phthalocyanine-based compounds and a core-shell compound including a core represented by Chemical Formula 1, and therefore can prevent the above-mentioned brightness deterioration problem, and furthermore, in Chemical Formula 1, is connected to a nitrogen atom One of the substituents must include a functional group represented by Chemical Formula 1-1 and a chiral carbon, and therefore durability can be improved, and thereby a color filter with high brightness and high contrast can be realized.

[化學式2-2]

在化學式2-1及化學式2-2中， L¹ 為單鍵、經取代或未經取代的C1到C10亞烷基或經取代或未經取代的C3到C10亞環烷基， L² 為經取代或未經取代的C1到C10亞烷基或經取代或未經取代的C3到C10亞環烷基，且 R⁵ 及R⁶ 各自獨立地為經取代或未經取代的C1到C20烷基。In Chemical Formula 1, R ¹ and R ² may each be independently represented by Chemical Formula 2-1 or Chemical Formula 2-2. [Chemical formula 2-1]

[Chemical formula 2-2]

In Chemical Formula 2-1 and Chemical Formula 2-2, L ¹ is a single bond, a substituted or unsubstituted C1 to C10 alkylene group or a substituted or unsubstituted C3 to C10 cycloalkylene group, and L ² is A substituted or unsubstituted C1 to C10 alkylene group or a substituted or unsubstituted C3 to C10 cycloalkylene group, and R ⁵ and R ⁶ are each independently a substituted or unsubstituted C1 to C20 alkane base.

In Chemical Formula 2-1 and Chemical Formula 2-2, R ⁶ may be a C1 to C20 alkyl group substituted with a'C1 to C10 alkyl group or a C6 to C20 aryl group'.

In Chemical Formula 2-1 and Chemical Formula 2-2, L ¹ may be a single bond or a substituted or unsubstituted C1 to C10 alkylene group, and L ² may be an unsubstituted C3 to C10 cycloalkylene group.

在化學式3中， R⁷ 及R⁸ 各自獨立地為經取代或未經取代的C1到C10烷基。For example, R ⁶ can be represented by Chemical Formula 3. [Chemical formula 3]

In Chemical Formula 3, R ⁷ and R ⁸ are each independently a substituted or unsubstituted C1 to C10 alkyl group.

When R ⁶ is represented by Chemical Formula 3, the squaraine-based compound has an alkoxy group containing a branched alkyl group as a substituent, and is therefore different from those having an unbranched alkyl group (unsubstituted alkyl group) as a substituent. Compared with alkoxy squaraine-based compounds, brightness and contrast can be further improved.

R ³ and R ⁴ may each independently be a C6 to C20 aryl group substituted with a C1 to C10 alkyl group or not substituted with a C1 to C10 alkyl group.

在化學式A中， R⁹ 為經取代或未經取代的C1到C10烷基，且 n為介於1到5範圍的整數。For example, R ³ and R ⁴ can each be independently represented by chemical formula A, but they are not limited to this. [Chemical formula A]

In the chemical formula A, R ⁹ is a substituted or unsubstituted C1 to C10 alkyl group, and n is an integer ranging from 1 to 5.

For example, in the chemical formula A, n can be an integer of 1 or 2.

For example, in the chemical formula A, R ⁹ may be present in the ortho position and/or the para position.

When the compound represented by Chemical Formula 1 (for example, as a dye) is used in the photosensitive resin composition, the solubility in the solvent described later may be greater than or equal to 5, for example, in the range of 5-10. The solubility can be obtained by the amount (g) of the dye (compound) dissolved in 100 g of solvent. When the solubility of the compound (for example, dye) is within the range, it can be ensured that it is compatible with other components in the photosensitive resin composition (ie, the binder resin, the photopolymerizable compound, and the photopolymerization initiator described later). ) Compatibility and coloring properties, and can prevent the precipitation of dyes.

The compound represented by Chemical Formula 1 may have excellent heat resistance. In other words, the thermal decomposition temperature measured by a thermogravimetric analyzer (TGA) can be greater than or equal to 200°C, for example, 200°C to 300°C.

The compound represented by Chemical Formula 1 has three resonance structures as shown in the following figure, but in this specification, for convenience, a compound having one resonance structure and represented by Chemical Formula 1 is shown. In other words, the compound represented by Chemical Formula 1 may have any one of the three resonance structures.

[Picture]

[化學式1-1-2]

[化學式1-1-3]

[化學式1-1-4]

[化學式1-1-5]

[化學式1-1-6]

[化學式1-1-7]

The compound represented by Chemical Formula 1 can be selected from compounds represented by Chemical Formula 1-1-1 to Chemical Formula 1-1-7. [Chemical formula 1-1-1]

[Chemical formula 1-1-2]

[Chemical formula 1-1-3]

[Chemical formula 1-1-4]

[Chemical formula 1-1-5]

[Chemical formula 1-1-6]

[Chemical formula 1-1-7]

The squaraine-based compound may have a structure of a core represented by Chemical Formula 1 and a shell surrounding the core. Specifically, the shell may be a giant cyclic compound, and the shell surrounds the compound represented by Chemical Formula 1 to form a coating.

In the embodiment, the compound represented by Chemical Formula 1 is surrounded by a shell corresponding to the giant cyclic compound, that is, the compound represented by Chemical Formula 1 exists inside the giant ring, and thereby the durability of the core-shell dye can be improved, and the durability of the core-shell dye can be improved. Realize color filters with high brightness and high contrast.

The length of the compound represented by Chemical Formula 1 contained in or composed of the core may be 1 nm to 3 nm, for example, 1.5 nm to 2 nm. When the length of the compound represented by Chemical Formula 1 is within the range, the core-shell dye may easily have a structure in which the shell surrounds the core. In other words, the length of the compound represented by Chemical Formula 1 is within the range, and thus the compound may have a structure in which a giant cyclic compound (ie, a shell) surrounds the compound represented by Chemical Formula 1. When a compound having a length outside the range is used, a structure in which the shell surrounds the core compound may not be obtained, and durability may not be improved.

The compound represented by Chemical Formula 1 contained in or constituting the core may have a maximum absorption peak in a wavelength of 530 nm to 680 nm. The core-shell dye using the compound represented by Chemical Formula 1 having the spectral characteristics as the core is used, for example, as a green dye, and thereby a photosensitive resin composition for a color filter having high brightness and high contrast can be provided .

[化學式5]

在化學式4及化學式5中， L^a 到L^d 各自獨立地為單鍵或經取代或未經取代的C1到C10亞烷基。The shell surrounding the core represented by Chemical Formula 1 may be represented by Chemical Formula 4 or Chemical Formula 5. [Chemical formula 4]

[Chemical formula 5]

In Chemical Formula 4 and Chemical Formula 5, L ^a to L ^d each independently substituted or unsubstituted C1 to C10 alkylene is a single bond or via.

In Chemical Formula 4 or Formula 5, L ^a to L ^d may each independently be a substituted or unsubstituted C1 to C10 alkylene. In this case, it is easy to form a structure having improved solubility and a shell surrounding the core represented by Chemical Formula 1.

For example, the core-shell dye according to the embodiment includes a non-covalent bond, that is, a hydrogen bond between the oxygen atom of the compound represented by Chemical Formula 1 and the nitrogen atom of the shell represented by Chemical Formula 4 or Chemical Formula 5.

[化學式5-1]

。The shell may be represented by, for example, Chemical Formula 4-1 or Chemical Formula 5-1. [Chemical formula 4-1]

[Chemical formula 5-1]

.

The cage width of the shell can range from 6.5 Å to 7.5 Å, and the volume of the shell can range from 10 Å to 16 Å. The cage width in the present disclosure refers to the internal distance of the shell. For example, in the shell represented by Chemical Formula 4-1 or Chemical Formula 5-1, it refers to the distance between two different phenylene groups connected by two methylene groups. distance. When the cage width of the shell is within the range, a core-shell dye having a structure surrounding the core represented by Chemical Formula 1 can be obtained, and therefore when the core-shell dye is added to the photosensitive resin composition, A color filter with improved durability and high brightness is realized.

The core-shell dye includes the core and shell represented by Chemical Formula 1 in a molar ratio of 1:1. When the core and the shell within the molar ratio are present, a coating (shell) surrounding the core represented by Chemical Formula 1 can be formed well.

[化學式7]

[化學式8]

[化學式9]

[化學式10]

[化學式11]

[化學式12]

[化學式13]

[化學式14]

[化學式15]

[化學式16]

[化學式17]

[化學式18]

[化學式19]

For example, the core-shell dye (squaraine-based compound) can be selected from the compounds represented by Chemical Formula 6 to Chemical Formula 19, but it is not limited to this. [Chemical formula 6]

[Chemical formula 7]

[Chemical formula 8]

[Chemical formula 9]

[Chemical formula 10]

[Chemical formula 11]

[Chemical formula 12]

[Chemical formula 13]

[Chemical formula 14]

[Chemical formula 15]

[Chemical formula 16]

[Chemical formula 17]

[Chemical formula 18]

[Chemical formula 19]

在化學式102中， R¹¹⁷ 及R¹¹⁸ 各自獨立地為經取代或未經取代的C1到C20烷基。 [化學式103]

在化學式103中， R¹¹⁹ 及R¹²⁰ 各自獨立地為鹵素原子。 [化學式104]

在化學式104中， R¹²¹ 為經取代或未經取代的C6到C20芳基。In the phthalocyanine-based compound represented by the chemical formula 101, one of R ¹⁰¹ to R ¹⁰⁴ , one of R ¹⁰⁵ to R ¹⁰⁸ , one of R ¹⁰⁹ to R ¹¹² , and one of R ¹¹³ to R ¹¹⁶ Each may independently be a substituted or unsubstituted aryloxy group. In this case, the substituted or unsubstituted aryloxy group may be represented by Chemical Formula 102 or may be represented by Chemical Formula 103 or Chemical Formula 104. [Chemical formula 102]

In Chemical Formula 102, R ¹¹⁷ and R ¹¹⁸ are each independently a substituted or unsubstituted C1 to C20 alkyl group. [Chemical formula 103]

In the chemical formula 103, R ¹¹⁹ and R ¹²⁰ are each independently a halogen atom. [Chemical formula 104]

In the chemical formula 104, R ¹²¹ is a substituted or unsubstituted C6 to C20 aryl group.

在化學式105中， R¹²² 為經取代或未經取代的C3到C20環烷基。In the phthalocyanine-based compound represented by the chemical formula 101, one of R ¹⁰¹ to R ¹⁰⁴ , one of R ¹⁰⁵ to R ¹⁰⁸ , and one of R ¹⁰⁹ to R ¹¹² may each independently be substituted or unsubstituted A substituted aryloxy group, and R ¹¹³ to R ¹¹⁶ may each independently be a hydrogen atom or a halogen atom. Here, the substituted or unsubstituted aryloxy group may be represented by Chemical Formula 105. [Chemical formula 105]

In the chemical formula 105, R ¹²² is a substituted or unsubstituted C3 to C20 cycloalkyl group.

[化學式107]

[化學式108]

For example, the compound (phthalocyanine-based compound) represented by the chemical formula 101 may be represented by one of the chemical formula 106 to the chemical formula 108, but is not limited to this. [Chemical formula 106]

[Chemical formula 107]

[Chemical formula 108]

Since the phthalocyanine-based compound represented by Chemical Formula 101 includes one of the substituents represented by Chemical Formula 102 to Chemical Formula 105, it exhibits a clear color even if it exists in a small amount, and can provide improved color characteristics (for example, Brightness, etc.) of the display device. For example, the phthalocyanine-based compound represented by the chemical formula 101 may be, for example, a green dye, such as a dye having a maximum transmittance at a wavelength of 445 nm to 560 nm. In addition, the green dye may be a dye having a maximum absorbance at a wavelength of 600 nm to 730 nm.

Since the green dye has a maximum transmittance at a wavelength of 445 nm to 560 nm, and a maximum absorbance at a wavelength of 600 nm to 730 nm, when the green dye is used as a colorant with green pigment dispersions and yellow pigment dispersions At this time, reliability, such as coloring properties, luminescence characteristics, and chemical resistance can be improved, and therefore, high color coordinates can be achieved. For example, based on the total amount of the photosensitive resin composition, the dye in the photosensitive resin composition according to the embodiment may be included in an amount of 1% by weight to 30% by weight. The dye must be included in the content range to improve the reliability of the photosensitive resin composition.

For example, based on the total solid content of the photosensitive resin composition, the coloring agent may be included in an amount of 2% by weight to 40% by weight (for example, 3% by weight to 30% by weight). When the colorant is included in the amount range, improved elution properties can be obtained in the high color coordinate embodiment.

The pigments may include green pigments and yellow pigments.

The green pigment may include the green pigment C.I. Pigment Green 7, C.I. Pigment Green 36, C.I. Pigment Green 37, C.I. Pigment Green 58, C.I. Pigment Green 59, C.I. Pigment Green 62, or a combination thereof.

Yellow pigments can include CI Pigment Yellow 11, CI Pigment Yellow 24, CI Pigment Yellow 31, CI Pigment Yellow 53, CI Pigment Yellow 83, CI Pigment Yellow 93, CI Pigment Yellow 99, CI Pigment Yellow 108, CI Pigment Yellow 109, CI Pigment Yellow 110, CI Pigment Yellow 138, CI Pigment Yellow 139, CI Pigment Yellow 147, CI Pigment Yellow 150, CI Pigment Yellow 151, CI Pigment Yellow 154, CI Pigment Yellow 155, CI Pigment Yellow 167, CI Pigment Yellow 180, CI Pigment Yellow 185, CI Pigment Yellow 199, CI Pigment Yellow 215, CI Pigment Yellow 231, or a combination thereof.

Generally speaking, dyes are the most expensive of the components used in color filters. Therefore, expensive dyes may need to be used more to achieve desired effects (such as high brightness, high contrast, etc.), and therefore, unit production costs may increase. However, the photosensitive resin composition according to the embodiment uses a mixture of one type of squaraine-based compound represented by Chemical Formula 1 and at least two different types of phthalocyanine-based compound represented by Chemical Formula 101 as the dye of the color filter , And even if used in a small amount and unit production cost, it can also achieve excellent color characteristics, such as high brightness, high contrast, etc.

Green pigments and yellow pigments can be used together with dispersants to disperse pigments. Specifically, the surface of the pigment can be pretreated with a dispersant, or the pigment and the dispersant can be added together to prepare a composition.

The dispersant can be a nonionic dispersant, an anionic dispersant, a cationic dispersant, and the like. Specific examples of the dispersant can be polyalkylene glycols and their esters, polyoxyalkylenes, polyol ester alkylene oxide addition products, alcohol alkylene oxide addition products, sulfonates, sulfonates, carboxylates Acid esters, carboxylates, alkyl amine alkylene oxide addition products, alkyl amines, etc., and these dispersants may be used alone or in the form of a mixture of two or more.

Commercial examples of the dispersant may include DISPERBYK-101, DISPERBYK-130, DISPERBYK-140, DISPERBYK-160, DISPERBYK made by BYK Co., Ltd. -161, DISPERBYK-162, DISPERBYK-163, DISPERBYK-164, DISPERBYK-165, DISPERBYK-166, DISPERBYK-170, DISPERBYK-171, DISPERBYK-182, DISPERBYK-2000, DISPERBYK-2001, etc.; Efka Chemical Company ( EFKA-47, EFKA-47EA, EFKA-48, EFKA-49, EFKA-100, EFKA-400, EFKA-450, etc. made by EFKA Chemicals Co.; Zeneka Co. Solsperse 5000, Solsperse 12000, Solsperse 13240, Solsperse 13940, Solsperse 17000, Solsperse 20000, Solsperse 24000GR, Solsperse 27000, Solsperse 28000, etc.; or PB711 made by Ajinomoto Inc. Or PB821.

Based on the total amount of the photosensitive resin composition, the dispersant may be included in an amount of 0.1% by weight to 15% by weight. When the content of the dispersant is within the range, the composition has excellent stability, developability, and patternability due to improved dispersion properties during the manufacture of the color filter.

Pigments can be pretreated with water-soluble inorganic salts and wetting agents. When the pigment is pretreated, the average particle size of the pigment can become finer.

The pretreatment can be performed by kneading the pigment with a water-soluble inorganic salt and a wetting agent, and then filtering and washing the kneaded pigment.

Kneading can be performed at a temperature of 40°C to 100°C, and filtering and washing can be performed by filtering pigments after rinsing inorganic salts with water or the like.

Examples of the water-soluble inorganic salt may be sodium chloride, potassium chloride, etc., but it is not limited thereto. The wetting agent can uniformly mix and pulverize the pigment and the water-soluble inorganic salt. Examples of the wetting agent include alkylene glycol monoalkyl ether, such as ethylene glycol monoethyl ether, propylene glycol monomethyl ether, diethylene glycol monomethyl ether, etc.; and alcohols, such as ethanol, isopropyl ether, etc. Propanol, butanol, hexanol, cyclohexanol, ethylene glycol, diethylene glycol, polyethylene glycol, glycerol polyethylene glycol, etc., and these wetting agents can be used alone or in combination of two or more Used in the form of a mixture.

The average particle size of the pigment after kneading may be in the range of 5 nm to 200 nm, for example, 5 nm to 150 nm. When the average particle diameter of the pigment is within the range, the stability of pigment dispersion may be improved, and the pixel resolution may not be degraded.

The solvent used to form the pigment dispersion may be ethylene glycol acetate, ethyl cellosolve, propylene glycol methyl ether acetate, ethyl lactate, polyethylene glycol, cyclohexanone, propylene glycol methyl ether, and the like.

Specifically, the pigment may be used in the form of a pigment dispersion including a dispersant and a solvent (to be described later), and the pigment dispersion may include a solid pigment, a dispersant, and a solvent. Based on the total amount of the pigment dispersion, the solid pigment may be included in an amount of 5% to 30% by weight, for example, 8% to 20% by weight.

(A) Adhesive resin

The binder resin may include an acrylic binder resin.

The acrylic adhesive resin is a copolymer of a first ethylenic unsaturated monomer and a second ethylenic unsaturated monomer copolymerizable therewith, and is a resin including at least one acrylic repeating unit.

The first ethylenically unsaturated monomer is an ethylenically unsaturated monomer including at least one carboxyl group. Examples of the monomer include (meth)acrylic acid, maleic acid, itaconic acid, fumaric acid, or a combination thereof.

Based on the total amount of the acrylic binder resin, the first ethylenically unsaturated monomer may be included in an amount of 5% to 50% by weight, for example, 10% to 40% by weight.

The second ethylenically unsaturated monomer may be an aromatic vinyl compound, such as styrene, α-methylstyrene, vinyl toluene, vinylbenzyl methyl ether, etc.; an unsaturated carboxylic acid ester compound, such as (formaldehyde Base) methyl acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, 2-hydroxyethyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, benzene (meth)acrylate Methyl ester, cyclohexyl (meth)acrylate, phenyl (meth)acrylate, etc.; unsaturated aminoalkyl carboxylate compounds, such as 2-aminoethyl (meth)acrylate, 2-aminoethyl (meth)acrylate Dimethylamino ethyl ester, etc.; carboxylic acid vinyl ester compounds, such as vinyl acetate, vinyl benzoate, etc.; unsaturated glycidyl carboxylic acid ester compounds, such as glycidyl (meth)acrylate, etc.; acrylonitrile compounds , Such as (meth)acrylonitrile, etc.; unsaturated amide compounds, such as (meth)acrylamide, etc.; etc., and the second ethylenically unsaturated monomer can be used alone or as two or more It is used in the form of a mixture of those.

Specific examples of acrylic adhesive resins may be (meth)acrylic acid/benzyl methacrylate copolymer, (meth)acrylic acid/benzyl methacrylate/styrene copolymer, (meth)acrylic acid/methyl Benzyl acrylate/2-hydroxyethyl methacrylate copolymer, (meth)acrylic acid/benzyl methacrylate/styrene/2-hydroxyethyl methacrylate copolymer, etc., but not limited to this And these acrylic adhesive resins can be used alone or in the form of a mixture of two or more.

The weight average molecular weight of the binder resin may be 3,000 g/mol to 150,000 g/mol (for example, 5,000 g/mol to 50,000 g/mol and for example, 20,000 g/mol to 30,000 g/mol). When the weight average molecular weight of the binder resin is within the range, the photosensitive resin composition has good physical and chemical properties, proper viscosity, and close contact with the substrate during the production of the color filter.

Based on the total amount of the photosensitive resin composition, the binder resin may be included in an amount of 1% by weight to 20% by weight. When the content of the binder resin is within the above range, developability can be improved, and excellent surface smoothness can be improved due to improved crosslinking during the manufacture of the color filter.

(C) Photopolymerizable compound

The photopolymerizable compound may be a monofunctional or multifunctional ester of (meth)acrylic acid containing at least one ethylenically unsaturated double bond.

The photopolymerizable compound has an ethylenically unsaturated double bond, and thus can cause sufficient polymerization during exposure in the pattern forming process and form a pattern having excellent heat resistance, light resistance, and chemical resistance.

Specific examples of the photopolymerizable compound may be 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, pentaerythritol tri(meth)acrylate, pentaerythritol tetra(meth)acrylate, pentaerythritol hexa(meth)acrylate, dipentaerythritol di(meth)acrylate Ester, dipentaerythritol tri(meth)acrylate, dipentaerythritol penta(meth)acrylate, dipentaerythritol hexa(meth)acrylate, bisphenol A epoxy (meth)acrylate, ethylene glycol monomethyl Ether (meth)acrylate, trimethylolpropane tri(meth)acrylate, tri(meth)acryloxyethyl phosphate, novolac epoxy (meth)acrylate, etc.

Commercial examples of the photopolymerizable compound are as follows. Examples of monofunctional esters of (meth)acrylic acid may include Aronix M-101®, M-111®, M-114® (Toagosei Chemistry Industry Co., Ltd.) ; KAYARAD TC-110S®, TC-120S® (Nippon Kayaku Co., Ltd.); V-158®, V-2311® (Osaka Organic Chemical Ind., Ltd.) )Wait. Examples of difunctional esters of (meth)acrylic acid may include Alonis M-210®, M-240®, M-6200® (Toya Synthetic Chemical Co., Ltd.), Kajalad HDDA®, HX-220®, R-604® (Nippon Kayaku Co., Ltd.), V-260®, V-312®, V-335 HP® (Osaka Organic Chemical Co., Ltd.), etc. Examples of trifunctional esters of (meth)acrylic acid may include Alonius M-309®, M-400®, M-405®, M-450®, M-710®, M-8030®, M-8060® (Dong-A Synthetic Chemical Co., Ltd.), Kayarad TMPTA®, DPCA-20®, DPCA-30®, DPCA-60®, DPCA-120® (Nippon Kayaku Co., Ltd.), V-295®, V-300 ®, V-360®, V-GPT®, V-3PA®, V-400® (Osaka Organic Chemical Co., Ltd.), etc. These photopolymerizable compounds can be used alone or as a mixture of two or more.

The photopolymerizable compound can be treated with acid anhydride to improve developability.

Based on the total amount of the photosensitive resin composition, the photopolymerizable compound may be included in an amount of 1% by weight to 20% by weight, for example, 5% by weight to 10% by weight. When the photopolymerizable compound is included in the range, the photopolymerizable compound is sufficiently cured during exposure in the pattern forming process and has excellent reliability, and the developability of the alkali developer can be improved.

(D) Photopolymerization initiator

Photopolymerization initiators are commonly used initiators for photosensitive resin compositions, such as acetophenone-based compounds, benzophenone-based compounds, thioxanthone-based compounds, benzoin-based compounds, triazine-based compounds, oxime-based compounds, or Its combination.

Examples of acetophenone compounds may be 2,2'-diethoxyacetophenone, 2,2'-dibutoxyacetophenone, 2-hydroxy-2-methylpropiophenone (2-hydroxy- 2-methylpropiophenone), p-tert-butyl trichloroacetophenone, p-tert-butyl dichloroacetophenone, 4-chloroacetophenone, 2,2'-dichloro-4-phenoxyacetophenone, 2 -Methyl-1-(4-(methylthio)phenyl)-2-morpholinylpropan-1-one, 2-benzyl-2-dimethylamino-1-(4-morpholinyl) Phenyl)-butan-1-one and the like.

Examples of benzophenone-based compounds may be benzophenone, benzophenone benzoate, benzophenone methyl benzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylate two Benzophenone, 4,4'-bis(dimethylamino)benzophenone, 4,4'-bis(diethylamino)benzophenone, 4,4'-dimethylaminobenzophenone Ketones, 4,4'-dichlorobenzophenone, 3,3'-dimethyl-2-methoxybenzophenone, etc.

Examples of thioxanthone compounds can be thioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone , 2-Chlorothioxanthone and so on.

Examples of benzoin-based compounds may be benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, benzyl dimethyl ketal, and the like.

Examples of triazine-based compounds can be 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) Yl)-s-triazine, 2-(p-methoxyphenyl)-4,6-bis(trichloromethyl)-s-triazine, 2-(p-tolyl)-4,6-bis( Trichloromethyl)-s-triazine, 2-biphenyl 4,6-bis(trichloromethyl)-s-triazine, bis(trichloromethyl)-6-styryl-s-triazine , 2-(naphthalene-1-yl)-4,6-bis(trichloromethyl)-s-triazine, 2-(4-methoxynaphthalene-1-yl)-4,6-bis(triazine) Chloromethyl)-s-triazine, 2-4-bis(trichloromethyl)-6-piperonyl-s-triazine, 2-4-bis(trichloromethyl)-6-(4-methyl Oxystyryl)-s-triazine and the like.

Examples of oxime-based compounds can be O-acyl oxime-based compounds, 2-(o-benzyl oxime)-1-[4-(phenylthio)phenyl]-1,2-octanedione, 1 -(o-acetyloxime)-1-[9-ethyl-6-(2-methylbenzyl)-9H-oxazol-3-yl]ethanone, O-ethoxycarbonyl- α-Oxyamino-1-phenylpropan-1-one and so on. Specific examples of O-acyl oxime compounds can be 1,2-octanedione, 2-dimethylamino-2-(4-methylbenzyl)-1-(4-morpholin-4-yl -Phenyl)-butan-1-one, 1-(4-phenylthiophenyl)-butan-1,2-dione 2-oxime-O-benzoate, 1-(4-phenylthio) (Phenyl)-octyl-1,2-dione-2-oxime-O-benzoate, 1-(4-phenylthiophenyl)-octan-1-one oxime-O-acetate, 1 -(4-Phenylthiophenyl)-butan-1-one oxime-O-acetate and the like.

In addition to the compounds, the photopolymerization initiator may also include azole-based compounds, diketone-based compounds, boric acid-based compounds, diazonium-based compounds, imidazole-based compounds, biimidazole-based compounds, fluorene-based compounds, and the like.

The photopolymerization initiator may be used together with a photosensitizer capable of causing a chemical reaction by absorbing light and being excited and then transmitting its energy.

Examples of photosensitizers may be tetraethylene glycol bis-3-mercaptopropionate, pentaerythritol tetra-3-mercaptopropionate, dipentaerythritol tetra-3-mercaptopropionate, and the like.

Based on the total amount of the photosensitive resin composition, the photopolymerization initiator may be contained in an amount of 0.1% by weight to 5% by weight, for example, 0.1% by weight to 3% by weight. When the content of the photopolymerization initiator is within the range, excellent reliability can be ensured due to sufficient curing during exposure in the pattern forming process, and the pattern can have excellent resolution and close contact properties as well as excellent heat resistance, Light resistance and chemical resistance, and can prevent deterioration of transmittance caused by non-reaction initiators.

(E) Solvent

The solvent is a material that is compatible with but does not react with the dye, pigment, binder resin, photopolymerizable compound, and photopolymerization initiator according to the embodiment.

Examples of the solvent may include alcohols, such as methanol, ethanol, etc.; ethers, such as dichloroethyl ether, n-butyl ether, diisoamyl ether, anisole, tetrahydrofuran, etc.; glycol ethers, such as ethylene glycol monomethyl ether, Ethylene glycol monoethyl ether, etc.; cellosolve acetate, such as methyl cellosolve acetate, ethyl cellosolve acetate, diethyl cellosolve acetate, etc.; carbitol, such as methyl ethyl carbitol, two Ethyl carbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, diethylene glycol diethyl ether, etc.; propylene glycol alkyl Ether acetate, such as propylene glycol methyl ether acetate, propylene glycol propyl ether acetate, etc.; aromatic hydrocarbons, such as toluene, xylene, etc.; ketones, such as methyl ethyl ketone, cyclohexanone, 4-hydroxy-4 -Methyl-2-pentanone, methyl-n-acetone, methyl-n-butanone, methyl-n-pentanone, 2-heptanone, etc.; saturated aliphatic monocarboxylic acid alkyl esters, such as ethyl acetate, N-butyl acetate, isobutyl acetate, etc.; lactate esters, such as methyl lactate, ethyl lactate, etc.; alkyl oxyacetate, such as methyl oxyacetate, ethyl oxyacetate, butyl oxyacetate Etc.; Alkoxy acetate alkyl esters, such as methyl methoxyacetate, ethyl methoxyacetate, butyl methoxyacetate, methyl ethoxyacetate, ethyl ethoxyacetate, etc.; 3-oxygen Alkyl propionate, such as methyl 3-oxypropionate, ethyl 3-oxypropionate, etc.; Alkyl 3-alkoxypropionate, such as methyl 3-methoxypropionate, 3 -Ethyl methoxypropionate, ethyl 3-ethoxypropionate, methyl 3-ethoxypropionate, etc.; alkyl 2-oxypropionate, such as methyl 2-oxypropionate, Ethyl 2-oxypropionate, propyl 2-oxypropionate, etc.; alkyl 2-alkoxypropionate, such as methyl 2-methoxypropionate, ethyl 2-methoxypropionate , Ethyl 2-ethoxypropionate, methyl 2-ethoxypropionate, etc.; 2-oxy-2-methylpropionate, such as methyl 2-oxy-2-methylpropionate, Ethyl 2-oxy-2-methylpropionate, etc.; monooxymonocarboxylic acid alkyl ester of 2-alkoxy-2-methylpropionate, such as 2-methoxy-2- Methyl methylpropionate, ethyl 2-ethoxy-2-methylpropionate, etc.; esters, such as ethyl 2-hydroxypropionate, ethyl 2-hydroxy-2-methylpropionate, ethyl glycolate Esters, methyl 2-hydroxy-3-methylbutyrate, etc.; Ketoesters, such as ethyl pyruvate, etc. In addition, high-boiling solvents can also be used, such as N-methylformamide, N,N-dimethylformamide, N-methylformaniline, N-methylacetamide, N,N-di Methyl acetamide, N-methylpyrrolidone, dimethyl sulfide, benzyl ethyl ether, dihexyl ether, acetone acetone, isophorone, caproic acid, caprylic acid, 1-octanol, 1- Nonanol, benzyl alcohol, benzyl acetate, ethyl benzoate, diethyl oxalate, diethyl maleate, γ-butyrolactone, ethylene carbonate, propylene carbonate, phenyl acetate Fiber agent and so on.

Considering miscibility and reactivity, you can use: ketones, such as cyclohexanone; glycol ethers, such as ethylene glycol monoethyl ether, etc.; glycol alkyl ether acetates, such as ethyl cellosolve acetate, etc.; esters , Such as 2-hydroxyethyl propionate, etc.; carbitol, such as diethylene glycol monomethyl ether, etc.; propylene glycol alkyl ether acetate, such as propylene glycol monomethyl ether acetate, propylene glycol propyl ether acetate Etc.; Ketones, such as cyclohexanone and the like.

Based on the total amount of the photosensitive resin composition, the remaining amount (for example, 20% by weight to 80% by weight, for example, 25% by weight to 70% by weight) of the solvent may be included. When the content of the solvent is within the range, the coating properties of the photosensitive resin composition can be improved, and a layer with improved flatness can be obtained.

(F) Other additives

The photosensitive resin composition may further include a coupling agent selected from malonic acid, 3-amino-1,2-propanediol, a vinyl group or (meth)acryloxy group, a leveling agent, a surfactant, and free radicals. At least one additive in the polymerization initiator to avoid stains or spots during coating, adjust leveling, or prevent pattern residue due to undeveloped.

The additives can be controlled depending on the required properties.

The coupling agent may be a silane coupling agent, and examples of the silane coupling agent may be trimethoxysilyl benzoic acid, gamma methacryloxypropyl trimethoxysilane, vinyl triethoxysilane , Vinyl trimethoxy silane, γ isocyanate propyl triethoxy silane, γ glycidoxy propyl trimethoxy silane, β epoxy cyclohexyl ethyl trimethoxy silane, etc., and the silane coupling agent It can be used alone or as a mixture of two or more.

The silane coupling agent may be contained in an amount of 0.01 part by weight to 1 part by weight based on 100 parts by weight of the photosensitive resin composition.

In addition, the photosensitive resin composition used for the color filter may further contain a surfactant, for example, a fluorine-based surfactant.

Examples of fluorine-based surfactants may include, but are not limited to, F-482, F-484, F-478, etc. made by DIC Co., Ltd..

Based on the total amount of the photosensitive resin composition, the surfactant may be contained in an amount of 0.01% by weight to 5% by weight, preferably 0.01% by weight to 2% by weight. When the amount exceeds the range, foreign particles after development may be generated.

In addition, the photosensitive resin composition may contain a predetermined amount of other additives, such as antioxidants, stabilizers, etc., as long as these additives do not degrade the properties of the photosensitive resin composition.

According to an embodiment, a color filter manufactured using the above-mentioned photosensitive resin composition is provided.

According to another embodiment, a color filter manufactured using the photosensitive resin composition is provided.

The method of manufacturing the color filter is as follows.

The photosensitive resin composition is coated on the glass substrate by an appropriate method (such as spin coating, roll coating, spray coating, etc.) to form a 0.5 μm to 10 μm thick photosensitive resin composition layer.

Subsequently, the substrate having the photosensitive resin composition layer is irradiated with light to form a pattern required for the color filter. The irradiation may be performed using ultraviolet rays, electron beams, or X-rays as a light source, and ultraviolet rays may be irradiated in a region of 190 nm to 450 nm, specifically 200 nm to 400 nm, for example. The irradiation can be performed by further using a photoresist mask. After performing the irradiation process in this way, the photosensitive resin composition layer exposed to the light source is processed with a developer. Here, the unexposed part in the photosensitive resin composition layer dissolves and forms a pattern for a color filter. These processes can be repeated as many times as the number of necessary colors to obtain a color filter with a desired pattern. In addition, when the image pattern obtained by development in the above process is cured by reheating or irradiating actinic rays therein, crack resistance, solvent resistance, etc. can be improved.

Hereinafter, the present invention is explained in more detail with reference to examples, however, these examples should not be construed as limiting the scope of the present invention in any sense.

(Synthetic Squaraine Dyes)

(Preparation of single molecule compounds)

將苯胺（10 mol）、4-溴甲苯（10 mol）、Pd2(dba)3（0.1 mol）及Xphos（0.1 mol）放置在了甲苯中，且然後在100°C下加熱並攪拌了24小時。向所述溶液中添加了乙酸乙酯，且將所述混合物洗滌了兩次以萃取有機層。在減壓下對所萃取的有機層進行了蒸餾並進行了純化以獲得中間物A。(Synthesis Example 1: Synthesis of Intermediate A)

Aniline (10 mol), 4-bromotoluene (10 mol), Pd2(dba)3 (0.1 mol) and Xphos (0.1 mol) were placed in toluene, and then heated and stirred at 100°C for 24 hours . Ethyl acetate was added to the solution, and the mixture was washed twice to extract the organic layer. The extracted organic layer was distilled and purified under reduced pressure to obtain Intermediate A.

將2,4-二甲基二苯胺（10 mol）、1,2-環氧己烷（1,2-epoxyhexane）（12 mol）及氫化鈉（12 mol）放置在了N,N-二甲基甲醯胺中，且然後加熱到90°C並攪拌了24小時。向所述溶液中添加了乙酸乙酯，且將所述混合物洗滌了兩次以萃取有機層。在減壓下對所萃取的有機層進行了蒸餾並進行了分離以獲得中間物B-1。(Synthesis example 2: Synthesis of intermediate B-1)

Place 2,4-dimethyldiphenylamine (10 mol), 1,2-epoxyhexane (12 mol) and sodium hydride (12 mol) on the N,N-dimethyl And then heated to 90°C and stirred for 24 hours. Ethyl acetate was added to the solution, and the mixture was washed twice to extract the organic layer. The extracted organic layer was distilled and separated under reduced pressure to obtain intermediate B-1.

除了使用1,2-環氧丁烷（butyleneoxide）代替1,2-環氧己烷以外，根據與合成例2相同的方法獲得了中間物B-2。(Synthesis example 3: Synthesis of intermediate B-2)

The intermediate B-2 was obtained according to the same method as Synthesis Example 2 except that 1,2-butyleneoxide was used instead of 1,2-epoxyhexane.

除了使用中間物A代替2,4-二甲基二苯胺以外，根據與合成例2相同的方法獲得了中間物B-3。(Synthesis Example 4: Synthesis of Intermediate B-3)

Except for using Intermediate A instead of 2,4-dimethyldiphenylamine, Intermediate B-3 was obtained according to the same method as Synthesis Example 2.

除了使用1,2-環氧環己烷代替1,2-環氧己烷以外，根據與合成例2相同的方法獲得了中間物B-4。(Synthesis Example 5: Synthesis of Intermediate B-4)

Except that 1,2-epoxycyclohexane was used instead of 1,2-epoxyhexane, the intermediate B-4 was obtained according to the same method as in Synthesis Example 2.

將中間物B-1（10 mmol）、碘甲烷（15 mmol）及氫化鈉（15 mmol）放置在了N,N-二甲基甲醯胺中，且在室溫下攪拌了24小時。向所述溶液中添加了乙酸乙酯，且將所述混合物洗滌了兩次以萃取有機層。在減壓下對所萃取的有機層進行了蒸餾並進行了分離以獲得中間物C-1。(Synthesis Example 6: Synthesis of Intermediate C-1)

Intermediate B-1 (10 mmol), methyl iodide (15 mmol), and sodium hydride (15 mmol) were placed in N,N-dimethylformamide, and stirred at room temperature for 24 hours. Ethyl acetate was added to the solution, and the mixture was washed twice to extract the organic layer. The extracted organic layer was distilled and separated under reduced pressure to obtain intermediate C-1.

除了使用2-碘丙烷（2-iodopropane）代替碘甲烷以外，根據與合成例6相同的方法獲得了中間物C-2。(Synthesis Example 7: Synthesis of Intermediate C-2)

Except that 2-iodopropane was used instead of methyl iodide, the intermediate C-2 was obtained according to the same method as in Synthesis Example 6.

除了使用中間物B-2代替中間物B-1以外，根據與合成例6相同的方法獲得了中間物C-3。(Synthesis Example 8: Synthesis of Intermediate C-3)

Except for using Intermediate B-2 instead of Intermediate B-1, Intermediate C-3 was obtained according to the same method as Synthesis Example 6.

除了使用碘乙烷代替碘甲烷以外，根據與合成例8相同的方法獲得了中間物C-4。(Synthesis Example 9: Synthesis of Intermediate C-4)

Except for using ethyl iodide instead of methyl iodide, the intermediate C-4 was obtained according to the same method as in Synthesis Example 8.

除了使用2-碘丙烷代替碘甲烷以外，根據與合成例8相同的方法獲得了中間物C-5。(Synthesis Example 10: Synthesis of Intermediate C-5)

Except for using 2-iodopropane instead of methyl iodide, the intermediate C-5 was obtained according to the same method as in Synthesis Example 8.

除了使用中間物B-3代替中間物B-1以外，根據與合成例6相同的方法獲得了中間物C-6。(Synthesis Example 11: Synthesis of Intermediate C-6)

Except for using Intermediate B-3 instead of Intermediate B-1, Intermediate C-6 was obtained according to the same method as Synthesis Example 6.

除了使用中間物B-4代替中間物B-1以外，根據與合成例6相同的方法獲得了中間物C-7。(Synthesis example 12: Synthesis of intermediate C-7)

Except for using Intermediate B-4 instead of Intermediate B-1, Intermediate C-7 was obtained according to the same method as in Synthesis Example 6.

將中間物C-1（60 mmol）及3,4-二羥基-3-環丁烯-1,2-二酮（30 mmol）放置在了甲苯（200 mL）及丁醇（200 mL）中，且利用迪安-斯塔克（Dean-stark）蒸餾器移除了通過對所述混合物進行回流而產生的水。在將所得產物攪拌12小時之後，在減壓下對綠色反應物進行了蒸餾並通過柱色譜法進行了純化，以獲得由化學式X-1表示的化合物。(Synthesis Example 13: Synthesis of a compound represented by the chemical formula X-1)

Place the intermediate C-1 (60 mmol) and 3,4-dihydroxy-3-cyclobutene-1,2-dione (30 mmol) in toluene (200 mL) and butanol (200 mL) , And a Dean-stark distiller was used to remove the water produced by refluxing the mixture. After the resultant product was stirred for 12 hours, the green reactant was distilled under reduced pressure and purified by column chromatography to obtain the compound represented by the chemical formula X-1.

(Synthesis Example 14: Synthesis of a compound represented by the chemical formula X-2) The compound represented by Chemical Formula X-2 was synthesized according to the same method as Synthesis Example 13, except that Intermediate C-2 was used instead of Intermediate C-1.

(Synthesis Example 15: Synthesis of a compound represented by the chemical formula X-3) The compound represented by the chemical formula X-3 was synthesized according to the same method as in Synthesis Example 13, except that Intermediate C-3 was used instead of Intermediate C-1.

(Synthesis Example 16: Synthesis of a compound represented by the chemical formula X-4) The compound represented by Chemical Formula X-4 was synthesized according to the same method as in Synthesis Example 13, except that Intermediate C-4 was used instead of Intermediate C-1.

(Synthesis Example 17: Synthesis of a compound represented by the chemical formula X-5) The compound represented by Chemical Formula X-5 was synthesized according to the same method as Synthesis Example 13, except that Intermediate C-5 was used instead of Intermediate C-1.

(Synthesis Example 18: Synthesis of a compound represented by the chemical formula X-6) The compound represented by Chemical Formula X-6 was synthesized according to the same method as in Synthesis Example 13, except that Intermediate C-6 was used instead of Intermediate C-1.

(Synthesis Example 19: Synthesis of a compound represented by the chemical formula X-7)

The compound represented by the chemical formula X-7 was synthesized according to the same method as in Synthesis Example 13, except that Intermediate C-7 was used instead of Intermediate C-1.

將由化學式X-1表示的化合物（5 mmol）溶解在了氯仿溶劑（600 mL）中，且歷時5小時在室溫下向其中滴加了通過將異酞醯氯（20 mmol）及對二甲苯二胺（p-xylylenediamine）（20 mmol）溶解在氯仿（60 mL）中而獲得的溶液。在12小時之後，在減壓下對所述混合物進行了蒸餾並通過柱色譜法進行了分離，以獲得由化學式6表示的化合物。 基質輔助激光解吸電離-飛行時間質譜（Maldi-tof MS）：1232.64 m/z(Synthesis Example 20: Synthesis of a core-shell dye represented by Chemical Formula 6)

The compound (5 mmol) represented by the chemical formula X-1 was dissolved in a chloroform solvent (600 mL), and was added dropwise at room temperature for 5 hours by mixing isophthaloyl chloride (20 mmol) and p-xylene A solution obtained by dissolving p-xylylenediamine (20 mmol) in chloroform (60 mL). After 12 hours, the mixture was distilled under reduced pressure and separated by column chromatography to obtain the compound represented by Chemical Formula 6. Matrix-assisted laser desorption ionization-time of flight mass spectrometry (Maldi-tof MS): 1232.64 m/z

將由化學式X-1表示的化合物（5 mmol）溶解在了氯仿溶劑（600 mL）中，且向其中添加了三乙基胺（50 mmol）。將2,6-吡啶二羰基二氯化物（2,6-pyridinedicarbonyl dichloride）（20 mmol）及對二甲苯二胺（20 mmol）溶解在了氯仿（60 mL）中，且歷時5小時在室溫下向其中滴加了所述溶液。在12小時之後，在減壓下對所述混合物進行了蒸餾並通過柱色譜法進行了分離，以獲得由化學式7表示的化合物。 Maldi-tof MS：1234.63 m/z(Synthesis Example 21: Synthesis of a core-shell dye represented by Chemical Formula 7)

The compound (5 mmol) represented by the chemical formula X-1 was dissolved in a chloroform solvent (600 mL), and triethylamine (50 mmol) was added thereto. Dissolve 2,6-pyridinedicarbonyl dichloride (20 mmol) and p-xylene diamine (20 mmol) in chloroform (60 mL) and leave it at room temperature for 5 hours The solution was dropped into it. After 12 hours, the mixture was distilled under reduced pressure and separated by column chromatography to obtain the compound represented by Chemical Formula 7. Maldi-tof MS: 1,234.63 m/z

(Synthesis Example 22: Synthesis of a core-shell dye represented by Chemical Formula 8) The compound represented by Chemical Formula 8 was obtained according to the same method as Synthesis Example 20 except that the compound represented by Chemical Formula X-2 was used instead of the compound represented by Chemical Formula X-1. Maldi-tof MS: 1288.70 m/z

(Synthesis Example 23: Synthesis of a core-shell dye represented by Chemical Formula 9) The compound represented by Chemical Formula 9 was obtained according to the same method as Synthesis Example 21 except that the compound represented by Chemical Formula X-2 was used instead of the compound represented by Chemical Formula X-1. Maldi-tof MS: 1290.69 m/z

(Synthesis Example 24: Synthesis of a core-shell dye represented by Chemical Formula 10) The compound represented by Chemical formula 10 was obtained according to the same method as Synthesis Example 20 except that the compound represented by Chemical formula X-3 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1176.57 m/z

(Synthesis Example 25: Synthesis of a core-shell dye represented by Chemical Formula 11) The compound represented by Chemical formula 10 was obtained according to the same method as Synthesis Example 21 except that the compound represented by Chemical formula X-3 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1178.56 m/z

(Synthesis Example 26: Synthesis of core-shell dye represented by Chemical Formula 12) The compound represented by Chemical formula 12 was obtained according to the same method as Synthesis Example 20 except that the compound represented by Chemical formula X-4 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1204.60 m/z

(Synthesis Example 27: Synthesis of a core-shell dye represented by Chemical Formula 13) The compound represented by Chemical formula 13 was obtained according to the same method as Synthesis Example 21 except that the compound represented by Chemical formula X-4 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1206.59 m/z

(Synthesis Example 28: Synthesis of a core-shell dye represented by Chemical Formula 14) The compound represented by Chemical formula 14 was obtained according to the same method as Synthesis Example 20 except that the compound represented by Chemical formula X-5 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1232.64 m/z

(Synthesis Example 29: Synthesis of core-shell dye represented by Chemical Formula 15) The compound represented by Chemical formula 15 was obtained according to the same method as Synthesis Example 21 except that the compound represented by Chemical formula X-5 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1,234.63 m/z

(Synthesis Example 30: Synthesis of a core-shell dye represented by Chemical Formula 16) The compound represented by Chemical Formula 16 was obtained according to the same method as Synthesis Example 20 except that the compound represented by Chemical Formula X-6 was used instead of the compound represented by Chemical Formula X-1. Maldi-tof MS: 1204.60 m/z

(Synthesis Example 31: Synthesis of a core-shell dye represented by Chemical Formula 17) The compound represented by Chemical formula 17 was obtained according to the same method as Synthesis Example 21 except that the compound represented by Chemical formula X-6 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1206.59 m/z

(Synthesis Example 32: Synthesis of a core-shell dye represented by Chemical Formula 18) The compound represented by Chemical Formula 18 was obtained according to the same method as Synthesis Example 20 except that the compound represented by Chemical Formula X-7 was used instead of the compound represented by Chemical Formula X-1. Maldi-tof MS: 1228.60 m/z

(Synthesis Example 33: Synthesis of core-shell dye represented by Chemical Formula 19) The compound represented by Chemical formula 19 was obtained according to the same method as Synthesis Example 21 except that the compound represented by Chemical formula X-7 was used instead of the compound represented by Chemical formula X-1. Maldi-tof MS: 1230.59 m/z

(Synthetic phthalocyanine dyes)

Maldi-tof MS：1808.47 m/zSynthesis Example 34: Synthesis of the compound represented by the chemical formula 106 3,4,6-trichloro-5-(2,4-di-tert-butyl-phenoxy)-phthalonitrile (1 g), 1 ,8-diazabicycloundec-7-ene (0.4 g), 1-pentenol (10 g) and zinc acetate (0.1 g) were placed in a 100 mL flask, and then placed at 140°C Stirring was performed while heating. When the reaction was completed, the resulting product was concentrated and purified by column chromatography. The liquid obtained after purification was concentrated to obtain a solid. The crystalline solid was vacuum dried to synthesize the compound represented by Chemical Formula 106. [Chemical formula 106]

Maldi-tof MS: 1808.47 m/z

Maldi-tof MS：1649.57 m/zSynthesis Example 35: Synthesis of the compound represented by chemical formula 107 3,4,6-trichloro-5-(biphenyl-2-yloxy)-phthalonitrile (0.5 g), 3,4,6- Trichloro-5-(2,6-dichlorophenoxy)-phthalonitrile (0.49 g), 1,8-diazabicycloundec-7-ene (0.38 g), 1-pentane Enol (10 g) and zinc acetate (0.12 g) were placed in a 100 mL flask, and then stirred while heating at 140°C. When the reaction was completed, the resulting product was concentrated and then purified by column chromatography. The liquid obtained after purification was concentrated to obtain a solid. The crystalline solid was vacuum dried to synthesize the compound represented by Chemical Formula 107. [Chemical formula 107]

Maldi-tof MS: 1649.57 m/z

Maldi-tof MS：1548.39 m/zSynthesis Example 36: Synthesis of the compound represented by the chemical formula 108 3,4,6-trichloro-5-(2-cyclohexylphenoxy)-phthalonitrile (0.5 g), 3,4,5,6 -Tetrachlorophthalonitrile (0.1 g), 1,8-diazabicycloundec-7-ene (0.3 g), 1-pentenol (5 g) and zinc acetate (0.08 g) It was placed in a 100 mL flask, and then stirred while heating at 140°C. When the reaction was complete, the resulting product was concentrated and purified by chromatography. The liquid obtained after purification was concentrated to obtain a solid. The crystalline solid was vacuum dried to synthesize a compound represented by Chemical Formula 108. [Chemical formula 108]

Maldi-tof MS: 1548.39 m/z

(Synthetic photosensitive resin composition)

Example 1 to Example 9 and Comparative Example 1 to Comparative Example 3

Each of the photosensitive resin compositions according to Examples 1 to 9 and Comparative Examples 1 to 3 was prepared by mixing the following components having the composition shown in Table 1.

Specifically, the photopolymerization initiator was dissolved in a solvent and then stirred at room temperature, and an alkali-soluble resin and a photopolymerizable compound were added thereto, and then stirred at room temperature. Subsequently, dyes and pigments were added to the reactants as colorants, and then stirred at room temperature. Then, the product thus obtained was filtered three times to remove impurities and prepare a photosensitive resin composition.

(Table 1)

（A）黏合劑樹脂 （A-1）丙烯酸系黏合劑樹脂（RY-25，昭和電工（ShowaDenko）） （A-2）丙烯酸系黏合劑樹脂（EHPE-3150，大賽璐（Daicel）） （B）著色劑 （B-1）合成例20的方酸菁系染料（由化學式6表示的化合物） （B-2）合成例34的酞菁系染料（由化學式106表示的化合物） （B-3）合成例35的酞菁系染料（由化學式107表示的化合物） （B-4）合成例36的酞菁系染料（由化學式108表示的化合物） （B-5）顏料Y138顏料（三洋（SANYO），顏料固體含量為15%） （C）光可聚合化合物 （C-1）：二季戊四醇六丙烯酸酯（dipentaerythritol hexaacrylate，DPHA，日本化藥股份有限公司（Nippon Kayaku Co. Ltd.）） （C-2）A9550（共榮社化學株式會社（KYOEISHA CHEMICAL）） （D）光聚合引發劑 （D-1）SPI-03（三陽公司（Samyang Corporation）） （D-2）AO-80（艾迪科（ADEKA）） （E）溶劑 （E-1）丙二醇單甲醚乙酸酯（西格馬-奧德裡奇公司（Sigma-Aldrich Corporation）） （E-2）環己酮（西格馬-奧德裡奇公司）(unit weight%)

(A) Adhesive resin (A-1) Acrylic adhesive resin (RY-25, Showa Denko) (A-2) Acrylic adhesive resin (EHPE-3150, Daicel) (B ) Coloring agent (B-1) Squaraine dye of Synthesis Example 20 (compound represented by Chemical Formula 6) (B-2) Phthalocyanine dye of Synthesis Example 34 (compound represented by Chemical Formula 106) (B-3 ) The phthalocyanine dye of Synthesis Example 35 (compound represented by Chemical Formula 107) (B-4) The phthalocyanine dye of Synthesis Example 36 (compound represented by Chemical Formula 108) (B-5) Pigment Y138 Pigment (SANYO (SANYO) ), the pigment solid content is 15%) (C) Photopolymerizable compound (C-1): dipentaerythritol hexaacrylate (DPHA, Nippon Kayaku Co. Ltd.) (C -2) A9550 (KYOEISHA CHEMICAL) (D) Photoinitiator (D-1) SPI-03 (Samyang Corporation) (D-2) AO-80 (艾Dico (ADEKA) (E) Solvent (E-1) Propylene glycol monomethyl ether acetate (Sigma-Aldrich Corporation) (E-2) Cyclohexanone (Sigma-Aldrich Corporation) -Aldrich Corporation)

Evaluation 1: Heat resistance and chemical resistance On a 1 mm thick degreased and washed glass substrate, each photosensitive resin composition according to Examples 1 to 9 and Comparative Examples 1 to 3 was coated to a thickness of 1 μm to 3 at 250 rpm and 350 rpm. μm thick, and then dried on a hot plate at 90° C. for 2 minutes to obtain a film. Subsequently, the front surface of the film was exposed at 50 mJ/cm2 using a high-pressure mercury lamp with a dominant wavelength of 365 nm. Subsequently, the film was dried in a forced convection drying oven at 245°C for 20 minutes to obtain a sample with the same thickness. The heat resistance and chemical resistance of the pixel layer were measured using a spectrophotometer (MCPD3000, Otsuka Electronics Co., Ltd.), and the results are shown in Table 2. (1) Measure heat resistance The sample was additionally processed at 245°C/60 min in a convection oven, and the color change before and after the treatment was measured by using MCPD (Otsuka Electronics Co., Ltd.) equipment to evaluate the color characteristics with respect to the C light source. Calculate △Eab* to measure heat resistance. (2) Measure chemical resistance (elution properties) The samples were fabricated into 2×2 cm size, and were processed in N-methylpyrrolidone (NMP) solution or gamma-butyrolactone (gamma-butyrolactone, GBL) solution at 90°C/10 min The precipitation was removed, and then the color change before and after the treatment was measured by using MCPD (Otsuka Electronics Co., Ltd.) equipment to evaluate the color characteristics with respect to the C light source. Calculate △Eab* to measure chemical resistance.

Evaluation 2: Lightfastness After spin-coating according to the target color and pre-baking at 90°C for 90 seconds, the sample was processed with an exposure dose of 40 mJ using a Usio exposure machine (main wavelength of 365 nm). The sample after the exposure treatment was post-baked in a convection oven at 230°C for 30 minutes to manufacture a sample for measuring light resistance. The manufactured sample was exposed to 60 mJ using a Western European exposure machine (main wavelength of 365 nm), and the light resistance was measured by the color characteristics before/after exposure, and the results are shown in Table 2.

(Table 2)

Referring to Table 2, compared with the photosensitive resin compositions according to Comparative Examples 1 to 3, the photosensitive resin compositions according to Examples all exhibited excellent heat resistance, chemical resistance, and light resistance, and thus greatly improved Reliability.

Although the present invention has been described in connection with exemplary embodiments that are currently regarded as actual, it should be understood that the present invention is not limited to the disclosed embodiments. On the contrary, the present invention is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the appended claims.

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Claims (18)

A photosensitive resin composition comprising: (A) a binder resin; (B) a colorant, including dyes and pigments; (C) a photopolymerizable compound; (D) a photopolymerization initiator; and (E) a solvent, wherein The dye includes one type of squaraine-based compound and at least two different types of phthalocyanine-based compound, and includes the total amount of the squaraine-based compound and the total weight in a weight ratio of 1:1 to 1:9. The total amount of phthalocyanine compounds. The photosensitive resin composition according to claim 1, wherein the squaraine-based compound is composed of a core and a shell represented by chemical formula 1, and the phthalocyanine-based compound is represented by chemical formula 101:

Wherein, in Chemical Formula 1, R ¹ and R ² are each independently a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 cycloalkyl group, or a substituted or unsubstituted A C6 to C20 aryl group, and R ³ and R ⁴ are each independently a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,

Wherein, in the chemical formula 101, R ¹⁰¹ to R ¹¹⁶ are each independently a hydrogen atom, a halogen atom, a substituted or unsubstituted C1 to C20 alkyl group, a substituted or unsubstituted C3 to C20 alkoxy group, a A substituted or unsubstituted C6 to C20 aryl group or a substituted or unsubstituted C6 to C20 aryloxy group. The photosensitive resin composition described in item 2 of the scope of patent application, wherein R ¹ and R ² must each independently include a functional group represented by chemical formula 1-1 and a chiral carbon: [Chemical formula 1-1]**- OR ⁶ wherein, in Chemical Formula 1-1, R ⁶ is a substituted or unsubstituted C1 to C20 alkyl group. The photosensitive resin composition as described in item 2 of the scope of patent application, wherein R ¹ and R ² are each independently represented by chemical formula 2-1 or chemical formula 2-2:

[Chemical Formula 2-2] **-L ² -OR ⁶ Wherein, in Chemical Formula 2-1 and Chemical Formula 2-2, L ¹ is a single bond, a substituted or unsubstituted C1 to C10 alkylene group, or a substituted Or unsubstituted C3 to C10 cycloalkylene, L ² is substituted or unsubstituted C1 to C10 alkylene or substituted or unsubstituted C3 to C10 cycloalkylene, and R ⁵ and R ^{6 is} each independently a substituted or unsubstituted C1 to C20 alkyl group. The photosensitive resin composition according to item 2 of the scope of patent application, wherein the shell is represented by chemical formula 4 or chemical formula 5:

[Chemical formula 5]

Wherein, in Chemical Formula 4 and Chemical Formula 5, L ^a to L ^d independently is a substituted or unsubstituted C1 to C10 via a single bond or alkylene group. The photosensitive resin composition according to item 2 of the scope of patent application, wherein the shell is represented by chemical formula 4-1 or chemical formula 5-1:

The photosensitive resin composition according to item 2 of the scope of patent application, wherein the squaraine-based compound is represented by one of Chemical Formula 6 to Chemical Formula 19:

[Chemical formula 10]

[Chemical formula 19]

The photosensitive resin composition according to the second item of the patent application, wherein one of R ¹⁰¹ to R ¹⁰⁴ , one of R ¹⁰⁵ to R ¹⁰⁸ , one of R ¹⁰⁹ to R ¹¹² , and R ¹¹³ to One of R ¹¹⁶ is each independently a substituted or unsubstituted aryloxy group. The photosensitive resin composition according to item 8 of the scope of patent application, wherein the substituted or unsubstituted aryloxy group is represented by the chemical formula 102:

Wherein, in the chemical formula 102, R ¹¹⁷ and R ¹¹⁸ are each independently a substituted or unsubstituted C1 to C20 alkyl group. The photosensitive resin composition according to item 8 of the scope of patent application, wherein the substituted or unsubstituted aryloxy group is represented by chemical formula 103 or chemical formula 104:

Wherein, in the chemical formula 103, R ¹¹⁹ and R ¹²⁰ are each independently a halogen atom,

Wherein, in the chemical formula 104, R ¹²¹ is a substituted or unsubstituted C6 to C20 aryl group. The photosensitive resin composition as described in claim 2 wherein one of R ¹⁰¹ to R ¹⁰⁴ , one of R ¹⁰⁵ to R ¹⁰⁸ , and one of R ¹⁰⁹ to R ¹¹² are each independently A substituted or unsubstituted aryloxy group, and R ¹¹³ to R ¹¹⁶ are each independently a hydrogen atom or a halogen atom. The photosensitive resin composition according to item 11 of the scope of patent application, wherein the substituted or unsubstituted aryloxy group is represented by the chemical formula 105:

Wherein, in the chemical formula 105, R ¹²² is a substituted or unsubstituted C3 to C20 cycloalkyl group. The photosensitive resin composition described in item 2 of the scope of patent application, wherein the phthalocyanine-based compound is represented by one of Chemical Formula 106 to Chemical Formula 108: [Chemical Formula 106]

[Chemical formula 108]

The photosensitive resin composition according to the first item of the scope of patent application, wherein the dye is contained in an amount of 1% by weight to 30% by weight based on the total amount of the photosensitive resin composition. The photosensitive resin composition according to item 1 of the scope of patent application, wherein: based on the total amount of the photosensitive resin composition, the photosensitive resin composition comprises: 1% by weight to 20% by weight of the photosensitive resin composition (A) Binder resin; 2% to 40% by weight of the (B) colorant; 1% to 20% by weight of the (C) photopolymerizable compound; 0.1% to 5% by weight of the The (D) photopolymerization initiator; and the balance of the (E) solvent. The photosensitive resin composition according to item 1 of the scope of patent application, wherein the photosensitive resin composition further comprises a group selected from malonic acid, 3-amino-1,2-propanediol, vinyl group or (methyl) At least one additive of acryloxy group coupling agent, leveling agent, fluorine-based surfactant, and radical polymerization initiator. A photosensitive resin layer is manufactured using the photosensitive resin composition described in any one of the first to the 16th patent application scope. A color filter includes the photosensitive resin layer as described in item 17 of the scope of patent application.