TW201811736A - Novel compound, core-shell dye, photosensitive resin and color filter - Google Patents

Abstract

A compound represented by Chemical Formula 1, a core-shell dye including a core including the same; and a shell surrounding the core, a photosensitive resin composition including the same, and a color filter manufactured using the photosensitive resin composition are disclosed. [Chemical Formula 1] In Chemical Formula 1, each substituent is the same as defined in the specification.

Description

Novel compound, core-shell dye, photosensitive resin composition and color filter

The present invention relates to a novel compound, a core-shell dye, a photosensitive resin composition containing the novel compound or the core-shell dye, and a color filter manufactured using the photosensitive resin composition.

Among many types of displays, liquid crystal display devices have the advantages of lightness, thinness, low cost, low operating power consumption, and high support for integrated circuits, and have been more widely used in laptops, monitors, and televisions. Screen. The liquid crystal display device includes a lower substrate and an upper substrate. A black matrix, a color filter, and an indium tin oxide pixel electrode are formed on the lower substrate. An active substrate including a liquid crystal layer, a thin film transistor, and a capacitor layer is formed on the upper substrate. Circuit section and indium tin oxide pixel electrode. By stacking multiple color filters in sequence in a predetermined order (generally, formed by three primary colors (such as red (R), green (G), and blue (B))) to form each primitive, A color filter is formed in the region, and a black matrix layer is disposed on the transparent substrate in a predetermined pattern to form a boundary between the primitives. A pigment dispersion method as one of various methods of forming a color filter, which 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 Up, exposing the formed pattern, removing the unexposed portion with a solvent, and thermally curing it. The coloring photosensitive resin composition for manufacturing a color filter according to a pigment dispersion method generally includes an alkali-soluble resin, a photopolymerizable monomer, a photopolymerization initiator, an epoxy resin, a solvent, other additives, and the like. The pigment dispersion method is actively used in manufacturing liquid crystal displays such as mobile phones, laptops, monitors, and televisions. However, a photosensitive resin composition for a color filter used in a pigment dispersion method has recently been required to improve performance and to have excellent pattern characteristics. Specifically, high color reproducibility, high brightness, and high contrast characteristics are urgently needed. An image sensor is a component used in a mobile phone camera or a digital still camera (DSC) to capture an image. Image sensors are classified as charge-coupled device (CCD) image sensors and complementary metal oxide semiconductor (CMOS) image sensors depending on the manufacturing process and application method. . A color imaging device for a charge-coupled device image sensor or a complementary metal oxide semiconductor image sensor includes a color filter, each of the color filters having a mixture of red, green, and blue These primary color filter segments are colored, and the colors are separate. A recent color filter installed in a color imaging device has a pattern size of 2 μm or less, which is 1/100 to 1/200 of a pattern size of a conventional color filter pattern of a liquid crystal display. Therefore, increasing resolution and reducing pattern residue are important factors in determining device performance. A color filter manufactured using a conventional pigment-type photosensitive resin composition has limitations on brightness and contrast due to the size of pigment particles. In addition, a color imaging device for an image sensor requires a smaller dispersed particle diameter to form a fine pattern. In order to meet the requirements, attempts have been made to prepare a photosensitive resin composition suitable for the dye by introducing a dye that does not form particles instead of a pigment, thereby realizing a color filter having improved brightness and contrast. However, the dye has poor durability (such as light resistance and heat resistance) and the like with respect to the pigment, and thus the brightness may be deteriorated.

Embodiments of the present invention provide a novel compound having improved brightness and contrast.

Another embodiment provides a core-shell dye comprising the novel compound.

Yet another embodiment provides a photosensitive resin composition including the novel compound or the core-shell dye.

Still another embodiment provides a color filter manufactured using the photosensitive resin composition.

The embodiment of the present invention provides a compound represented by Chemical Formula 1. [Chemical Formula 1] In Chemical Formula 1, R ¹ and R ^{2 are} 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 An aryl group, with the limitation that R ¹ and R ² independently and must contain a functional group and a palm carbon represented by Chemical Formula 1-1, and R ³ and R ^{4 are} independently substituted or unsubstituted C1 to C20 Alkyl or substituted or unsubstituted C6 to C20 aryl, [Chemical Formula 1-1] Wherein, in Chemical Formula 1-1, R ⁶ is a substituted or unsubstituted C1 to C20 alkyl group. R ¹ and R ² may be independently represented by Chemical Formula 2-1 or Chemical Formula 2-2. [Chemical Formula 2-1] [Chemical Formula 2-2] In Chemical Formulas 2-1 and 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} independently a substituted or unsubstituted C1 to C20 alkyl . 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. R ⁶ can be represented by Chemical Formula 3. [Chemical Formula 3] In Chemical Formula 3, R ⁷ and R ^{8 are} independently a substituted or unsubstituted C1 to C10 alkyl group. R ³ and R ⁴ may independently be a C6 to C20 aryl group substituted or unsubstituted with a C1 to C10 alkyl group.

The compound represented by Chemical Formula 1 may be one of the compounds represented by Chemical Formula 4 to Chemical Formula 10. [Chemical Formula 4] [Chemical Formula 5] [Chemical Formula 6] [Chemical Formula 7] [Chemical Formula 8] [Chemical Formula 9] [Chemical Formula 10]

The compound represented by Chemical Formula 1 may have a maximum absorption wavelength (λ _max ) in 600 nm to 700 nm.

Another embodiment provides a core-shell dye including a core including a compound represented by Chemical Formula 1 and a shell surrounding the core.

The shell may be represented by Chemical Formula 11 or Chemical Formula 12. [Chemical Formula 11] [Chemical Formula 12] In Chemical Formula 11 and Chemical Formula 12, L ^a to L ^{d are} independently a single bond or a substituted or unsubstituted C1 to C10 alkylene group. L ^a to L ^d may independently be substituted or unsubstituted C1 to C10 alkylene.

The shell may be represented by Chemical Formula 11-1 or Chemical Formula 12-1. [Chemical Formula 11-1] [Chemical Formula 12-1]

The cage width of the shell may range from 6.5 Å to 7.5 Å.

The core may have a length of 1 nm to 3 nm.

The core may have a maximum absorption peak in a wavelength of 530 nm to 680 nm.

The core-shell dye may be a compound represented by Chemical Formula 13 to Chemical Formula 26. [Chemical Formula 13] [Chemical Formula 14] [Chemical Formula 15] [Chemical Formula 16] [Chemical Formula 17] [Chemical Formula 18] [Chemical Formula 19] [Chemical Formula 20] [Chemical Formula 21] [Chemical Formula 22] [Chemical Formula 23] [Chemical Formula 24] [Chemical Formula 25] [Chemical Formula 26]

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

The core-shell dye may be a green dye.

The core-shell dye may have a maximum absorption wavelength (λ _max ) in 600 nm to 700 nm.

Another embodiment provides a photosensitive resin composition including the compound or the core-shell dye.

The photosensitive resin composition may further include a binder resin, a photopolymerizable monomer, a photopolymerization initiator, and a solvent.

The photosensitive resin composition may further include a pigment.

Based on the total amount of the photosensitive resin composition, the photosensitive resin composition may include 0.5 to 10 wt% of the compound or the core-shell dye; 0.1 to 30 wt% of the adhesion Resin; 0.1 wt% to 30 wt% of the photopolymerizable monomer; 0.1 wt% to 5 wt% of the photopolymerization initiator; and the balance of the solvent.

The photosensitive resin composition may further include malonic acid, 3-amino-1,2-propanediol, a silane-based coupling agent containing a vinyl group or a (meth) acryloxy group, a leveling agent, a surfactant, and a free agent. Radical polymerization initiator or a combination thereof.

Another embodiment provides a color filter manufactured using the photosensitive resin composition.

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

The compounds or core-shell dyes according to the embodiments can realize color filters with improved brightness and contrast.

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

In this specification, when a specific definition is not otherwise provided, "substituted" means that at least one hydrogen atom of a compound is replaced with the following substituent: a halogen atom (F, Cl, Br or I), a hydroxyl group, a C1 to C20 alkane Oxy, nitro, cyano, amine, imino, azido, fluorenyl, hydrazine, hydrazino, carbonyl, carbamoyl, 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 the present specification, when a specific definition is not provided otherwise, "heterocycloalkyl", "heterocycloalkenyl", "heterocycloalkynyl" and "heterocycloalkylene" refer to those containing N, O, S or Each cyclic compound of cycloalkyl, cycloalkenyl, cycloalkynyl, and cycloalkylene of at least one hetero atom in P.

In this specification, when a specific definition is not provided otherwise, "(meth) acrylate" means both "acrylate" and "methacrylate".

In this specification, when a definition is not otherwise provided, "combination" means mixing or copolymerization. In addition, "copolymerization" means block copolymerization to random copolymerization, and "copolymer" means block copolymer to random copolymer.

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

In addition, in this specification, when a definition is not provided separately, "*" means palm carbon. Palm carbon indicates a central carbon with four different functional groups around the carbon, and the actual image of the compound with palm carbon does not overlap its mirror image.

In addition, unless a definition is otherwise provided in this specification, palmitic carbon includes one selected from the R configuration, the S configuration, a racemic mixture thereof, and a combination thereof.

In this specification, when a definition is not otherwise provided, "*" indicates a point connecting the same or different atom or chemical formula.

The compound according to the embodiment is represented by Chemical Formula 1. [Chemical Formula 1] In Chemical Formula 1, R ¹ and R ^{2 are} 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 An aryl group, with the limitation that R ¹ and R ² independently and must contain a functional group and a palm carbon represented by Chemical Formula 1-1, and R ³ and R ^{4 are} independently substituted or unsubstituted C1 to C20 Alkyl or substituted or unsubstituted C6 to C20 aryl, [Chemical Formula 1-1] Wherein, in Chemical Formula 1-1, R ⁶ is a substituted or unsubstituted C1 to C20 alkyl group.

The compound represented by Chemical Formula 1 has excellent green spectral characteristics and a high molar extinction coefficient and can be used as a green dye. However, the compounds have insufficient durability as compared with pigments, and thus may deteriorate brightness during a baking process performed after being formed into a color resist. The compound according to the embodiment must include a functional group represented by Chemical Formula 1-1 and a palm carbon as one of the substituents connected to a nitrogen atom, and therefore, durability can be improved and thus high brightness and high contrast can be realized. Color filters.

In Chemical Formula 1, R ¹ and R ² may be independently represented by Chemical Formula 2-1 or Chemical Formula 2-2. [Chemical Formula 2-1] [Chemical Formula 2-2] In Chemical Formulas 2-1 and 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} independently a substituted or unsubstituted C1 to C20 alkyl .

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, a substituted or unsubstituted C1 to C10 alkylene group, and L ² may be an unsubstituted C3 to C10 cycloalkylene group.

For example, R ⁶ may be represented by Chemical Formula 3. [Chemical Formula 3] In Chemical Formula 3, R ⁷ and R ⁸ may be independently a C6 to C20 aryl group substituted with a C1 to C10 alkyl group or an unsubstituted C1 to C10 alkyl group. When R ⁶ is represented by Chemical Formula 3, the compound according to the embodiment has an alkoxy group including a branched alkyl group as a substituent instead of an alkoxy group including an unbranched alkyl group (unsubstituted alkyl group) as a substituent. , And therefore can further increase brightness and contrast. R ³ and R ⁴ may independently be a C6 to C20 aryl group substituted or unsubstituted with a C1 to C10 alkyl group.

For example, R ³ and R ⁴ may be independently represented by Chemical Formula A, but are not limited thereto. [Chemical Formula A] In 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 Chemical Formula A, n may be an integer of 1 or 2.

For example, in Chemical Formula A, R ⁹ may be present at ortho and / or para positions.

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

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

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

The compound represented by Chemical Formula 1 may have a maximum absorption wavelength (λ _max ) in a range of 600 nm to 700 nm (refer to cyclohexanone).

The compound represented by Chemical Formula 1 may be a compound represented by Chemical Formula 4 to Chemical Formula 10. [Chemical Formula 4] [Chemical Formula 5] [Chemical Formula 6] [Chemical Formula 7] [Chemical Formula 8] [Chemical Formula 9] [Chemical Formula 10]

A core-shell dye according to another embodiment has a structure composed of a core and a shell surrounding the core. The core contains a compound represented by Chemical Formula 1. 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 Color filters with high brightness and high contrast can be realized.

The length of the compound represented by Chemical Formula 1 contained in or constituting 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 a shell surrounds a 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 cannot be obtained, and durability cannot be improved.

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

The shell surrounding the core containing the compound represented by Chemical Formula 1 may be represented by Chemical Formula 11 or Chemical Formula 12. [Chemical Formula 11] [Chemical Formula 12] In Chemical Formula 11 and Chemical Formula 12, L ^a to L ^{d are} independently a single bond or a substituted or unsubstituted C1 to C10 alkylene group. In Chemical Formula 11 or Chemical Formula 12, L ^a to L ^d independently is 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 a core including a compound 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 an oxygen atom of a compound represented by Chemical Formula 1 and a nitrogen atom of a shell represented by Chemical Formula 11 or Chemical Formula 12.

The shell may be represented by, for example, Chemical Formula 11-1 or Chemical Formula 12-1. [Chemical Formula 11-1] [Chemical Formula 12-1]

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 invention refers to the internal distance of the shell. For example, in the shell represented by Chemical Formula 11-1 or Chemical Formula 12-1, it means the distance between two different phenylene groups connected by two methylene groups. Distance (see Figure 1). When the cage width of the shell is within the range, a core-shell dye having a structure that surrounds a core containing a compound represented by Chemical Formula 1 can be obtained, and therefore when a core-shell dye is added to the photosensitive resin composition It is possible to realize a color filter having improved durability and high brightness.

The core-shell dye includes a core and a shell including a compound represented by Chemical Formula 1 at a molar ratio of 1: 1. When a core and a shell are present within the Mole ratio, a coating (shell) that surrounds the core containing the compound represented by Chemical Formula 1 can be formed well.

Core-shell dyes can have a maximum absorption wavelength (λ _max ) in the range of 600 nm to 700 nm (refer to cyclohexanone).

For example, the core-shell dye may be represented by one selected from the compounds represented by Chemical Formula 13 to Chemical Formula 26, but is not limited thereto. [Chemical Formula 13] [Chemical Formula 14] [Chemical Formula 15] [Chemical Formula 16] [Chemical Formula 17] [Chemical Formula 18] [Chemical Formula 19] [Chemical Formula 20] [Chemical Formula 21] [Chemical Formula 22] [Chemical Formula 23] [Chemical Formula 24] [Chemical Formula 25] [Chemical Formula 26]

Core-shell dyes can be used alone as green dyes and can also be mixed with auxiliary dyes.

Auxiliary dyes can be triarylmethane dyes, anthraquinone dyes, benzylidene dyes, cyanine dyes, phthalocyanine dyes, azaporphyrin dyes, indigo dyes, xanthene dyes, azo Department of dyes and so on.

Core-shell dyes can be mixed with pigments.

The pigment may be a red pigment, a green pigment, a blue pigment, a yellow pigment, a black pigment, or the like.

Examples of red pigments may be color index (C.I.) red pigment 254, C.I. red pigment 255, C.I. red pigment 264, C.I. red pigment 270, C.I. red pigment 272, C.I. red pigment 177, C.I. red pigment 89, and the like. Examples of the green pigment may be C.I. green pigment 36, C.I. green pigment 7, C.I. green pigment 58, C.I. green pigment 59, C.I. green pigment 62, and the like. Examples of blue pigments may be copper phthalocyanine pigments, such as CI blue pigment 15: 6, CI blue pigment 15, CI blue pigment 15: 1, CI blue pigment 15: 2, CI blue pigment 15: 3 , CI blue pigment 15: 4, CI blue pigment 15: 5, CI blue pigment 16 and the like. Examples of the yellow pigment may be an isoindoline-based pigment such as C.I. yellow pigment 139; a quinophthalone-based pigment such as C.I. yellow pigment 138; a nickel complex pigment such as C.I. yellow pigment 150 and the like. Examples of the black pigment may be aniline black, perylene black, titanium black, carbon black, and the like. The pigment may be used alone or as a mixture of two or more, but is not limited thereto.

The pigment may be contained in the state of a pigment dispersion in the photosensitive resin composition for a color filter. The pigment dispersion liquid may be composed of a pigment, a solvent, a dispersant, a dispersion resin, and the like.

The solvent may be ethylene glycol acetate, ethyl cellosolve, propylene glycol methyl ether acetate, ethyl lactate, polyethylene glycol, cyclohexanone, propylene glycol methyl ether, etc., and is preferably propylene glycol methyl ether acetate .

The dispersant facilitates uniform dispersion of the pigment, and may include a nonionic dispersant, an anionic dispersant, or a cationic dispersant. Specific examples may be polyalkylene glycols or their esters, polyoxyalkylenes, polyol ester alkylene oxide addition products, alcohol alkylene oxide addition products, sulfonates, sulfonates, carboxylic acid esters, carboxylic acids Salts, alkylamidoalkylene oxide addition products, alkylamines, and these dispersants can be used alone or as a mixture of two or more.

The dispersion resin may be an acrylic resin containing a carboxyl group, and may improve the stability of the pigment dispersion liquid and the pattern properties of the picture element.

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

According to another embodiment, a photosensitive resin composition including a compound represented by Chemical Formula 1 or a core-shell dye is provided.

The photosensitive resin composition contains (A) a colorant (the compound represented by Chemical Formula 1 or a core-shell dye), (B) a binder resin, (C) a photopolymerizable monomer, (D) a photopolymerization initiator, and (E) ) Solvent.

Hereinafter, each component is explained in detail.

(A) Colorant

The colorant may include a compound represented by Chemical Formula 1 and / or a core-shell dye, and the compound represented by Chemical Formula 1 and / or a core-shell dye are as described above.

The colorant may further include a pigment in addition to the compound represented by Chemical Formula 1 and / or the core-shell dye, and the pigment is as described above.

The compound represented by Chemical Formula 1 and / or the core may be included in an amount of 0.5 wt% to 10 wt% (for example, 0.5 wt% to 5 wt%) based on the total amount of the photosensitive resin composition used for the color filter. Shell dye. When a compound represented by Chemical Formula 1 and / or a core-shell dye within the above range is used, high brightness and high contrast with desired color coordinates can be achieved.

(B) Adhesive resin

The binder resin is a copolymer of a first ethylene-based unsaturated monomer and a second ethylene-based unsaturated monomer copolymerizable therewith, and is a resin containing at least one acrylic repeating unit.

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

The first ethylenically unsaturated monomer may be included in an amount of 5 wt% to 50 wt% (for example, 10 wt% to 40 wt%) based on the total amount of the binder resin.

The second ethylenically unsaturated monomer may be an aromatic vinyl compound such as styrene, α-methylstyrene, vinyl toluene, vinyl benzyl methyl ether, etc .; an unsaturated carboxylic acid ester compound such as (methyl 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 carboxylic acid ester compounds, such as 2-aminoethyl (meth) acrylate, 2-methyl (meth) acrylate Dimethylaminoethyl, etc .; Vinyl carboxylic acid 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 and the like; unsaturated fluorenamine compounds such as (meth) acrylamide and the like; and the second ethylenically unsaturated monomer may be used alone or as both or more Use as a mixture of many.

Specific examples of the binder resin may be methacrylic acid / benzyl methacrylate copolymer, methacrylic acid / benzyl methacrylate / styrene copolymer, methacrylic acid / benzyl methacrylate / methyl A 2-hydroxyethyl acrylate copolymer, a methacrylic acid / benzyl methacrylate / styrene / 2-hydroxyethyl methacrylate copolymer, and the like are not limited thereto. These binder resins may be used alone or as 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 close contact properties and physicochemical properties with the substrate are improved, and the viscosity is appropriate.

The acid value of the binder resin may be 15 mgKOH / g to 60 mgKOH / g (for example, 20 mgKOH / g to 50 mgKOH / g). When the acid value of the binder resin is within the range, excellent resolution of the picture element can be obtained.

The binder resin may be included in an amount of 0.1 wt% to 30 wt% (for example, 5 wt% to 20 wt%) based on the total amount of the photosensitive resin composition. When the binder resin is included in 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 monomer

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

The photopolymerizable monomer can cause sufficient polymerization during the exposure of the patterning process due to the ethylenically unsaturated double bond, and form a pattern having excellent heat resistance, light resistance, and chemical resistance.

Specific examples of the photopolymerizable monomer may be ethylene glycol di (meth) acrylate, diethylene glycol di (meth) acrylate, triethylene glycol di (meth) acrylate, propylene glycol di (methyl) ) 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, dipentaerythritol tri (meth) acrylate, dipentaerythritol penta (meth) acrylate, dipentaerythritol hexa (meth) acrylate, bisphenol A epoxy (meth) acrylate, ethylene glycol mono Methyl ether (meth) acrylate, trimethylolpropane tri (meth) acrylate, tris (meth) acryloxyethyl phosphate, novolac epoxy (meth) acrylate, and the like.

Commercial examples of the photopolymerizable monomer may be as follows. Monofunctional (meth) acrylates may include Aronix M-101 ^® , M-111 ^® , M-114 ^® (Toagosei Chemistry Industry Co., Ltd.); Kaya KAYARAD TC-110S ^® , TC-120S ^® (Nippon Kayaku Co., Ltd.); V-158 ^® , V-2311 ^® (Osaka Organic Chemical Co., Ltd. Ind., Ltd.)) and so on. Examples of difunctional (meth) acrylates may include Aronix M-210 ^® , M-240 ^® , M-6200 ^® (East Asia Chemical Co., Ltd.), KAYARAD 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 (meth) acrylates may include Aronix M-309 ^® , M-400 ^® , M-405 ^® , M-450 ^® , M-7100 ^® , M-8030 ^® , M- 8060 ^® (East Asia 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 monomers may be used alone or as a mixture of two or more.

The photopolymerizable monomer may be treated with an acid anhydride to improve developability.

The photopolymerizable monomer may be included in an amount of 0.1 wt% to 30 wt% (for example, 5 wt% to 20 wt%) based on the total amount of the photosensitive resin composition. When the photopolymerizable monomer is included in the range, the pattern characteristics and developability during the manufacture of the color filter can be improved.

(D) Photopolymerization initiator

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

Examples of the acetophenone-based compound may be 2,2'-diethoxyacetophenone, 2,2'-dibutoxyacetophenone, 2-hydroxy-2-methylphenylacetone (2-hydroxy- 2-methylpropinophenone), p-tert-butyltrichloroacetophenone, p-tert-butyldichloroacetophenone, 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) -but-1-one and the like.

Examples of the benzophenone-based compound may be benzophenone, benzophenethyl benzoate, benzophenethyl benzoate, 4-phenylbenzophenone, hydroxybenzophenone, acrylated dibenzophenone Benzophenone, 4,4'-bis (dimethylamino) benzophenone, 4,4'-bis (diethylamino) benzophenone, 4,4'-dimethylaminobenzophenone Ketones, 4,4'-dichlorobenzophenone, 3,3'-dimethyl-2-methoxybenzophenone and the like.

Examples of the thioxanthone-based compound may be thioxanthone, 2-methylthioxanthone, isopropylthioxanthone, 2,4-diethylthioxanthone, 2,4-diisopropylthioxanthone , 2-chlorothioxanthone and so on.

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

Examples of the triazine-based compound may be 2,4,6-trichloro-s-triazine, 2-phenyl4,6-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 ( (Trichloromethyl) -s-triazine, 2-biphenyl 4,6-bis (trichloromethyl) -s-triazine, bis (trichloromethyl) -6-styryl-s-tri Hydrazine, 2- (naphthalene-1-yl) -4,6-bis (trichloromethyl) -s-triazine, 2- (4-methoxynaphthalene-1-yl) -4,6-bis ( (Trichloromethyl) -s-triazine, 2--4-trichloromethyl (piperidyl) -6-triazine, 2--4-trichloromethyl (4'-methoxystyryl) -6 -Triazines and the like.

Examples of the oxime-based compound may be 2- (o-benzylideneoxime) -1- [4- (phenylthio) phenyl] -1,2-octanedione, 1- (o-acetofluorenyloxime)- 1- [9-ethyl-6- (2-methylbenzylidene) -9H-oxazol-3-yl] ethanone and the like.

In addition to the compound, the photopolymerization initiator may further include an oxazole-based compound, a dione-based compound, a boronic acid-based compound, a diazonium-based compound, an imidazole-based compound, a biimidazole-based compound, a fluorene-based compound, and the like.

The photopolymerization initiator may be included in an amount of 0.1 wt% to 5 wt% (for example, 1 wt% to 3 wt%) based on the total amount of the photosensitive resin composition. When a photopolymerization initiator is included in the range, the composition can sufficiently photopolymerize when exposed during a pattern forming process for preparing a color filter to achieve excellent sensitivity and improve transmission rate.

(E) Solvent

The solvent is not particularly limited, and is specifically, for example, an alcohol such as methanol, ethanol, etc .; an ether such as dichloroether, n-butyl ether, diisoamyl ether, methylphenyl ether, tetrahydrofuran, etc .; a glycol ether such as ethyl Glycol methyl ether, ethylene glycol ether, propylene glycol methyl ether, etc .; acetic acid cellosolve, such as methyl cellosolve acetate, ethyl cellosolve acetate, diethyl cellosolve acetate, etc .; Carbitol, such as methyl ethyl carbitol, diethyl carbitol, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol dimethyl ether, diethylene glycol methyl ethyl Ethers, diethylene glycol diethyl ether, etc .; propylene glycol alkyl ether acetates, 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 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 esters, such as ethyl acetate, n-butyl acetate, isobutyl acetate, etc .; alkyl lactates, such as methyl lactate, ethyl lactate, etc .; alkyl glycolates , Such as methyl glycolate, ethyl glycolate, butyl glycolate, etc .; alkoxyalkyl acetates, such as methoxymethyl acetate, methoxyethyl acetate, methoxybutyl Acetate, ethoxymethyl acetate, ethoxyethyl acetate, etc .; alkyl 3-hydroxypropionate, such as methyl 3-hydroxypropionate, ethyl 3-hydroxypropionate, etc .; Alkyl 3-alkoxypropionates, such as methyl 3-methoxypropionate, ethyl 3-methoxypropionate, ethyl 3-ethoxypropionate, methyl 3-ethoxypropionate Esters, etc .; alkyl 2-hydroxypropionates, such as methyl 2-hydroxypropionate, ethyl 2-hydroxypropionate, propyl 2-hydroxypropionate, etc .; alkyl 2-alkoxypropionates, such as Methyl 2-methoxypropionate, ethyl 2-methoxypropionate, ethyl 2-ethoxypropionate, methyl 2-ethoxypropionate, etc .; 2-hydroxy-2-methylpropane Acid alkyl esters, such as methyl 2-hydroxy-2-methylpropionate, ethyl 2-hydroxy-2-methylpropionate, etc .; alkyl 2-alkoxy-2-methylpropionates, such as Methyl 2-methoxy-2-methylpropionate, ethyl 2-ethoxy-2-methylpropionate, etc .; esters such as 2-hydroxyethyl propionate, 2-hydroxy propionate- 2-methyl Ethyl ester, hydroxyethyl acetate, methyl 2-hydroxy-3-methylbutanoate, etc .; or ketoesters, such as ethyl pyruvate, etc., and additionally N-methylformamide, N, N-diamine Methylformamide, N-methylformanilide, N-methylacetamide, N, N-dimethylacetamide, N-methylpyrrolidone, dimethylmethane, benzyl ether, Dihexyl ether, acetone, isophorone, hexanoic acid, octanoic acid, 1-octanol, 1-nonanol, benzyl alcohol, benzyl acetate, ethyl benzoate, diethyl oxalate, maleic acid Diethyl acid, γ-butyrolactone, ethylene carbonate, propylene carbonate, phenyl cellosolve acetate, and the like may be used alone or as a mixture of two or more.

Considering miscibility and reactivity, the solvent can be expected to be a ketone, such as cyclohexanone, etc .; glycol ethers, such as ethylene glycol monoethyl ether, etc .; glycol alkyl ether acetates, such as ethyl cellosolve acetic acid Esters, etc .; esters, such as 2-hydroxyethyl propionate, etc .; diethylene glycol, such as diethylene glycol monomethyl ether, etc .; propylene glycol alkyl ether acetates, such as propylene glycol monomethyl ether acetate, propylene glycol propylene Ether acetate and the like.

The solvent is used in the balance based on the total amount of the photosensitive resin composition, and specifically 20 wt% to 90 wt%. The photosensitive resin composition for a color filter has coating properties and can maintain excellent flatness of a film having a thickness of 3 μm or more.

(F) Other additives

The photosensitive resin composition may further include additives such as malonic acid; 3-amino-1,2-propanediol; a silane-based coupling agent containing a vinyl or (meth) acryloxy group; a leveling agent; a fluorine-based surface activity Agents; radical polymerization initiators, etc. to prevent stains or spots during coating, adjust leveling, or prevent pattern residues due to undeveloped.

In addition, the photosensitive resin composition may further include additives such as epoxy compounds to improve the close contact properties with the substrate.

Examples of the epoxy compound may be a phenol novolac epoxy compound, a tetramethylbiphenyl epoxy compound, a bisphenol A epoxy compound, an alicyclic epoxy compound, or a combination thereof.

The amount of additives can be controlled according to the desired properties.

Another embodiment provides a color filter manufactured using the photosensitive resin composition. The method of manufacturing a color filter is as follows.

Using a suitable method such as spin coating or slit coating, a photosensitive resin composition for a color filter is applied on a bare glass substrate or a glass substrate coated with SiN _x having a thickness of 500 Å to 1500 Å as a protective layer. Coated to have a thickness of 3.1 μm to 3.4 μm. After the coating, light is irradiated to form a desired pattern of the color filter. After the irradiation, the coated layer is treated with an alkaline developer, and the non-radiation area of the coated layer can be dissolved, thereby forming a pattern for an image color filter. This process is repeated depending on the required number of red, green, and blue to produce a color filter having a desired pattern.

In addition, the image pattern obtained through development is cured by heat treatment, actinic ray radiation, or the like, and as a result, crack resistance, solvent resistance, and the like are improved.

Hereinafter, preferred examples of the present invention will be described. However, these examples should not be construed as limiting the scope of the invention in any sense.

(Preparation of single molecule compounds)

(Synthesis Example 1 : Synthesis of Intermediate A )

Toluene was added aniline (10 mol), 4-bromotoluene (10 mol), Pd ₂ (dba) ₃ (0.1 mol), and Xphos (0.1 mol), and the mixture was heated at 100 ° C. and Stir for 24 hours. To this solution was added ethyl acetate, and the obtained mixture was washed twice with water to extract an organic layer. The extracted organic layer was distilled under reduced pressure and purified by column chromatography to obtain Intermediate A.

(Synthesis Example 2 : Synthesis of Intermediate B-1 )

Added N, N-dimethylformamide to 2,4-dimethyldiphenylamine (10 mol), 1,2-epoxyhexane (12 mol) and sodium hydride (12 mol), And the mixture was heated and stirred at 90 ° C for 24 hours. To this solution was added ethyl acetate, and the obtained mixture was washed twice with water to extract an organic layer. The extracted organic layer was distilled under reduced pressure and separated by column chromatography to obtain intermediate B-1.

(Synthesis Example 3 : Synthesis of Intermediate B-2 )

Intermediate B-2 was synthesized in the same manner as in Synthesis Example 2 except that 1,2-epoxybutane was used instead of 1,2-epoxyhexane.

(Synthesis Example 4 : Synthesis of Intermediate B-3 )

Intermediate B-3 was synthesized in the same manner as in Synthesis Example 2 except that 2,4-dimethyldiphenylamine was used instead of Intermediate A.

(Synthesis Example 5 : Synthesis of Intermediate B-4 )

Intermediate B-4 was synthesized in the same manner as in Synthesis Example 2 except that 1,2-epoxycyclohexane was used instead of 1,2-epoxycyclohexane.

(Synthesis Example 6 : Synthesis of Intermediate C-1 )

To N, N-dimethylformamide were added intermediate B-1 (10 mmol), methyl iodide (15 mmol) and sodium hydride (15 mmol), and the mixture was stirred at room temperature for 24 hours. hour. To this solution was added ethyl acetate, and the obtained mixture was washed twice with water to extract an organic layer. The extracted organic layer was distilled under reduced pressure and separated by column chromatography to obtain intermediate C-1.

(Synthesis Example 7 : Synthesis of Intermediate C-2 )

Intermediate C-2 was synthesized in the same manner as in Synthesis Example 6 except that 2-iodopropane was used instead of methyl iodide.

(Synthesis Example 8 : Synthesis of Intermediate C-3 )

Intermediate C-3 was synthesized in the same manner as in Synthesis Example 6 except that intermediate B-2 was used instead of intermediate B-1.

(Synthesis Example 9 : Synthesis of Intermediate C-4 )

An intermediate C-4 was synthesized in the same manner as in Synthesis Example 8 except that iodoethane was used instead of methyl iodide.

(Synthesis Example 10 : Synthesis of Intermediate C-5 )

An intermediate C-5 was synthesized in the same manner as in Synthesis Example 8 except that 2-iodopropane was used instead of methyl iodide.

(Synthesis Example 11 : Synthesis of Intermediate C-6 )

Intermediate C-6 was synthesized in the same manner as in Synthesis Example 6 except that intermediate B-3 was used instead of intermediate B-1.

(Synthesis Example 12 : Synthesis of Intermediate C-7 )

Intermediate C-7 was synthesized in the same manner as in Synthesis Example 6 except that intermediate B-4 was used instead of intermediate B-1.

(Synthesis Example 13 : Synthesis of a compound represented by Chemical Formula 4 )

Toluene (200 mL) and butanol (200 mL) were added the intermediates C-1 (60 mmol) and 3,4-dihydroxy-3-cyclobutyne-1,2-dione (30 mmol), And a Dean-stark still was used to remove the water produced by refluxing the mixture. After stirring for 12 hours, the green reactant was distilled under reduced pressure and purified by column chromatography to obtain a compound represented by Chemical Formula 4.

(Synthesis example 14 : By chemical formula 5 (Representing the synthesis of compounds)

A compound represented by Chemical Formula 5 was synthesized by the same method as Synthesis Example 13 except that Intermediate C-2 was used instead of Intermediate C-1.

(Synthesis example 15 : By chemical formula 6 (Representing the synthesis of compounds)

A compound represented by Chemical Formula 6 was synthesized in the same manner as in Synthesis Example 13 except that Intermediate C-3 was used instead of Intermediate C-1.

(Synthesis example 16 : By chemical formula 7 (Representing the synthesis of compounds)

A compound represented by Chemical Formula 7 was synthesized in the same manner as in Synthesis Example 13 except that Intermediate C-4 was used instead of Intermediate C-1.

(Synthesis example 17 : By chemical formula 8 (Representing the synthesis of compounds)

A compound represented by Chemical Formula 8 was synthesized in the same manner as in Synthesis Example 13 except that Intermediate C-5 was used instead of Intermediate C-1.

(Synthesis example 18 : By chemical formula 9 (Representing the synthesis of compounds)

A compound represented by Chemical Formula 9 was synthesized by the same method as Synthesis Example 13 except that Intermediate C-6 was used instead of Intermediate C-1.

(Synthesis example 19 : By chemical formula 10 (Representing the synthesis of compounds)

A compound represented by Chemical Formula 10 was synthesized in the same manner as in Synthesis Example 13 except that Intermediate C-7 was used instead of Intermediate C-1.

(Synthesis Example 20 : Synthesis of a core - shell dye represented by Chemical Formula 13 )

The compound (5 mmol) represented by Chemical Formula 4 was dissolved in 600 mL of chloroform solvent, and isophthalamidine chloride (20 mmol) and p-xylylenediamine (20 mmol) were added dropwise thereto at room temperature over 5 hours. A solution obtained by dissolving in 60 mL of chloroform. After 12 hours, the obtained mixture was distilled under reduced pressure and separated by column chromatography to obtain a compound represented by Chemical Formula 13. Matrix-assisted laser desorption ionization-time of flight mass spectrometry (Maldi-tof MS): 1232.64 m / z

(Synthesis Example 21 : Synthesis of a core - shell dye represented by Chemical Formula 14 )

A compound (5 mmol) represented by Chemical Formula 4 was dissolved in 600 mL of a chloroform solvent, and triethylamine (50 mmol) was added thereto. 2,6-Pyridinedicarbonyldichloride (20 mmol) and p-xylylenediamine (20 mmol) were dissolved in 60 mL of chloroform, and the solution was added thereto at room temperature for 5 hours. After 12 hours, the obtained mixture was distilled under reduced pressure and separated by column chromatography to obtain a compound represented by Chemical Formula 14. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1234.63 m / z

(Synthesis example twenty two : By chemical formula 15 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 15 was synthesized by the same method as Synthesis Example 20, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1288.70 m / z

(Synthesis example twenty three : By chemical formula 16 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 16 was synthesized by the same method as Synthesis Example 21, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1296.69 m / z

(Synthesis example twenty four : By chemical formula 17 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 17 was synthesized by the same method as Synthesis Example 20, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1176.57 m / z

(Synthesis example 25 : By chemical formula 18 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 18 was synthesized in the same manner as in Synthesis Example 21 except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1178.56 m / z

(Synthesis example 26 : By chemical formula 19 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 19 was synthesized in the same manner as in Synthesis Example 20, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1204.60 m / z

(Synthesis example 27 : By chemical formula 20 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 20 was synthesized in the same manner as in Synthesis Example 21 except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1206.59 m / z

(Synthesis example 28 : By chemical formula twenty one Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 21 was synthesized by the same method as Synthesis Example 20, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1232.64 m / z

(Synthesis example 29 : By chemical formula twenty two Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 22 was synthesized by the same method as Synthesis Example 21, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1234.63 m / z

(Synthesis example 30 : By chemical formula twenty three Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 23 was synthesized by the same method as Synthesis Example 20, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1204.60 m / z

(Synthesis example 31 : By chemical formula twenty four Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 24 was synthesized by the same method as Synthesis Example 21, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1206.59 m / z

(Synthesis example 32 : By chemical formula 25 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 25 was synthesized by the same method as Synthesis Example 20, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1228.60 m / z

(Synthesis example 33 : By chemical formula 26 Represented nucleus - Synthesis of shell dyes)

A compound represented by Chemical Formula 26 was synthesized according to the same method as Synthesis Example 21, except that the compound represented by Chemical Formula 4 was used instead of the compound represented by Chemical Formula 4. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 1230.59 m / z

(Comparative Synthesis Example 1 : By chemical formula X (Representing the synthesis of compounds)

[Chemical Formula X]

A compound represented by Chemical Formula X was synthesized in the same manner as in Synthesis Example 13 except that Intermediate B-3 was used instead of Intermediate C-1. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 672.39 m / z

(Comparative Synthesis Example 2 : By chemical formula Y (Representing the synthesis of compounds)

[Chemical Formula Y]

In a 100 mL 3-necked flask, put 398 mg of cubic acid and 2.23 g of ethyl 2- (3- (methyl (phenyl) amino) propylamino) acrylate, and add 40 mL of n-butanol and 20 mL of toluene. And the mixture was heated and refluxed at 120 ° C for 5 hours. A Dean-Stark trap set was used to remove water generated during the reaction and promote the reaction. When the reaction was completed, the resultant therefrom was cooled, and then extracted with dichloromethane and treated by column chromatography to synthesize a compound represented by Chemical Formula Y in a yield of 60%. Matrix-assisted laser desorption ionization-time of flight mass spectrometry: 514.26 m / z

(Comparative Synthesis Example 3 :nuclear - Synthesis of shell dyes)

In a 100 mL 3-necked flask, put 398 mg of cubic acid and 2.23 g of ethyl 2- (3- (dibutylamino) phenoxy) acrylate, and add 40 mL of n-butanol and 20 mL of toluene, and The obtained mixture was heated and refluxed at 120 ° C for 5 hours. The Dean-Stark separator set was used to remove the water produced during the reaction and promote the reaction. When the reaction was completed, the resultant therefrom was cooled, and then extracted with dichloromethane and treated by column chromatography, thereby obtaining a compound represented by Chemical Formula Z-1 in a yield of 60%. Subsequently, 0.72 g (1 mmol) of the compound represented by Chemical Formula Z-1 and 2.02 g (1 mmol) of the triethylfluorenyl β-cyclodextrin represented by Chemical Formula Z-2 (CAS #) 23739-88-0, TCI Chemicals) was dissolved in 50 ml of dichloromethane, the solution was stirred at room temperature for about 12 hours, and after the solvent was completely removed under reduced pressure, The residue was dried to obtain about 2.7 g of a core-shell dye in a solid state. The core-shell dye has a structure in which a compound represented by Chemical Formula Z-2 surrounds a compound represented by Chemical Formula Z-1.

[Chemical Formula Z-1]

[Chemical Formula Z-2]

(Preparation of photosensitive resin composition)

A photosensitive resin composition was prepared using the following components.

( A ) Dyes (A-1) single-molecular dyes (represented by Chemical Formula 4) prepared in Synthesis Example 13 (A-2) single-molecular dyes (represented by Chemical Formula 5) prepared in Synthesis Example 14 (A-3 ) The single-molecule dye (represented by Chemical Formula 6) prepared in Synthesis Example 15 (A-4) the single-molecule dye (represented by Chemical Formula 7) prepared in Synthesis Example 16 (A-5) prepared in Synthesis Example 17 Single molecule dye (represented by Chemical Formula 8) (A-6) Single molecule dye (represented by Chemical Formula 9) prepared in Synthesis Example 18 (A-7) Single molecule dye (represented by Chemical Formula 10) prepared in Synthesis Example 19 ) (A-8) Core-shell dye prepared in Synthesis Example 20 (represented by Chemical Formula 13) (A-9) Core-shell dye prepared in Synthesis Example 21 (represented by Chemical Formula 14) (A-10) Core-shell dye (represented by Chemical Formula 15) prepared in Synthesis Example 22 (A-11) Core-shell dye (represented by Chemical Formula 16) prepared in Synthesis Example 23 (A-12) Prepared in Synthesis Example 24 Core-shell dye (represented by Chemical Formula 17) (A-13) The core-shell dye (represented by Chemical Formula 18) prepared in Synthesis Example 25 (A-14) The core-shell dye (represented by Chemical Formula 19) prepared in Synthesis Example 26 (A-15) the core-shell dye (represented by Chemical Formula 20) prepared in Synthesis Example 27 (A-16) Core-shell dye (represented by Chemical Formula 21) prepared in Synthesis Example 28 (A-17) Core-shell dye (represented by Chemical Formula 22) prepared in Synthesis Example 29 (A-18) Prepared in Synthesis Example 30 Core-shell dye (represented by Chemical Formula 23) (A-19) Core-shell dye (represented by Chemical Formula 24) prepared in Synthesis Example 31 (A-20) Core-shell dye (represented by Chemical Formula 24) (Expressed in Chemical Formula 25) (A-21) Core-Shell Dye (Expressed in Chemical Formula 26) prepared in Synthesis Example 33 (A-22) Single-molecule dye (Expressed in Chemical Formula X) prepared in Comparative Synthesis Example 1 (A -23) Single-molecule dye (represented by Chemical Formula Y) prepared in Comparative Synthesis Example 2 (A-24) Core-shell dye prepared in Comparative Synthesis Example 3

( A ' ) Pigment dispersion (A'-1) CI green pigment 7 (A'-2) CI green pigment 58

( B ) Adhesive resin methacrylic acid / benzyl methacrylate copolymer with a weight average molecular weight of 22,000 g / mol (mixed weight ratio: 15 wt% / 85 wt%)

( C ) Photopolymerizable monomer Dipentaerythritol hexaacrylate

( D ) Photopolymerization initiator (D-1) 1,2-octanedione (D-2) 2-dimethylamino-2- (4-methyl-benzyl) -1- (4-? Phenyl-4-yl-phenyl) -butan-1-one

( E ) Solvent (E-1) Cyclohexanone (E-2) Propylene glycol methyl ether acetate

Examples 1 To example twenty one And comparative examples 1 To comparative example 5

A photosensitive resin composition was prepared by mixing each component in the compositions shown in Tables 1 to 3. Specifically, a photopolymerization initiator is dissolved in a solvent, the solution is stirred at room temperature for 2 hours, a dye (or a pigment dispersion) is added thereto, the mixture is stirred for 30 minutes, and a binder is added thereto. Resin and photopolymerizable monomer, and the obtained mixture was stirred at room temperature for 2 hours. The solution was filtered three times to remove impurities and prepare a photosensitive resin composition.

[Table 1] (Unit: wt%)

[Table 2] (Unit: wt%)

[Table 3] (Unit: wt%)

(Evaluation)

Evaluation 1 : Brightness and contrast

The photosensitive resin compositions according to Examples 1 to 21 and Comparative Examples 1 to 5 were coated on a 1 mm thick degreased glass substrate to a thickness of 1 μm to 3 μm, respectively, and dried on a hot plate at 90 ° C. for 2 minutes. To obtain a film. Subsequently, the film was exposed with a high-pressure mercury lamp having a main wavelength of 365 nm, and dried in a forced convection drying oven in an oven at 200 ° C for 5 minutes. A spectrophotometer (MCPD3000, Otsuka electronic Co., Ltd.) was used to measure the brightness and contrast of the element layer, and the results are shown in Table 4.

[Table 4]

Referring to Table 4, Examples 1 to 21 containing a single molecule dye or a core-shell dye according to an embodiment of the present invention are compared with Comparative Examples 1 to 5 containing neither a single molecule dye nor a core-shell dye. Shows high brightness and high contrast. In addition, the compound according to the embodiment exhibits much better brightness and contrast when a branched alkyl-substituted alkoxy group is included as a functional group than when the alkoxy group is not included.

Evaluation 2 : Durability

The photosensitive resin compositions according to Examples 8 to 21 and Comparative Examples 1 to 5 were coated on a 1 mm thick degreased glass substrate to a thickness of 1 μm to 3 μm, and dried on a hot plate at 90 ° C. for 2 minutes. To obtain a film. The film was exposed with a high-pressure mercury lamp with a main wavelength of 365 nm and dried in an oven at 200 ° C for 20 minutes, and the color coordinate change was measured using a spectrophotometer (MCPD3000, Otsuka Electronics Co., Ltd.) and thus durability was evaluated The results are shown in Table 5.

Evaluation criteria for durability

Good: color coordinate change is less than or equal to 0.005

Difference: Color coordinate change is greater than 0.005

[table 5]

Referring to Table 5, a composition containing a monomolecular dye different from the monomolecular dye according to the embodiment (Comparative Examples 1 and 2), and a combination containing a core-shell dye different from the core-shell dye according to the embodiment In comparison with the comparative example (Comparative Example 3), Examples 8 to 21 containing the core-shell dye according to the examples showed excellent durability.

Although the invention has been described in connection with exemplary embodiments that are presently considered to be practical, it is to be understood that the invention is not limited to the disclosed embodiments, but rather, the invention is intended to cover the scope of the invention encompassed by the appended claims. Various modifications and equivalent configurations within the spirit and scope of the book. Therefore, the above-mentioned embodiments should be understood as exemplary, rather than limiting the present invention in any way.

no

FIG. 1 is a view showing a cage width of a shell represented by Chemical Formula 11-1.

Claims (22)

A compound represented by Chemical Formula 1: [Chemical Formula 1] Wherein, in Chemical Formula 1, R ¹ and R ^{2 are} 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 aryl, with the limitation that R ¹ and R ² independently and must contain a functional group and palm carbon represented by Chemical Formula 1-1, and R ³ and R ^{4 are} independently substituted or unsubstituted C1 To C20 alkyl or substituted or unsubstituted C6 to C20 aryl, [Chemical Formula 1-1] Wherein, in Chemical Formula 1-1, R ⁶ is a substituted or unsubstituted C1 to C20 alkyl group. The compound according to item 1 of the scope of patent application, wherein R ¹ and R ^{2 are} represented by Chemical Formula 2-1 or Chemical Formula 2-2: [Chemical Formula 2-1] [Chemical Formula 2-2] Among them, 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, 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} independently substituted or unsubstituted C1 to C20 alkyl. The compound according to item 2 of the scope of the patent application, wherein R ⁶ is a C1 to C20 alkyl group substituted with a C1 to C10 alkyl group or a C6 to C20 aryl group. The compound as described in claim 3, wherein R ⁶ is represented by Chemical Formula 3: [Chemical Formula 3] Among them, in Chemical Formula 3, R ⁷ and R ^{8 are} independently a substituted or unsubstituted C1 to C10 alkyl group. The compound according to item 1 of the scope of patent application, wherein R ³ and R ^{4 are} independently a C6 to C20 aryl group substituted or unsubstituted with a C1 to C10 alkyl group. The compound according to item 1 of the scope of patent application, wherein the compound represented by Chemical Formula 1 is one of the compounds represented by Chemical Formula 4 to Chemical Formula 10: [Chemical Formula 4] [Chemical Formula 5] [Chemical Formula 6] [Chemical Formula 7] [Chemical Formula 8] [Chemical Formula 9] [Chemical Formula 10] . The compound according to item 1 of the patent application range, wherein the compound has a maximum absorption wavelength from 600 nm to 700 nm. A core-shell dye comprising: a core comprising the compound according to claim 1; and a shell surrounding the core. The core-shell dye according to item 8 of the scope of patent application, wherein the shell is represented by Chemical Formula 11 or Chemical Formula 12: [Chemical Formula 11] [Chemical Formula 12] Among them, in Chemical Formula 11 and Chemical Formula 12, L ^a to L ^{d are} independently a single bond or a substituted or unsubstituted C1 to C10 alkylene group. The core-shell dye according to item 9 of the scope of the patent application, wherein L ^a to L ^{d are} independently substituted or unsubstituted C1 to C10 alkylene. The core-shell dye according to item 9 of the scope of patent application, wherein the shell is represented by Chemical Formula 11-1 or Chemical Formula 12-1: [Chemical Formula 11-1] [Chemical Formula 12-1] . The core-shell dye according to item 8 of the patent application scope, wherein the shell has a cage width of 6.5 Å to 7.5 Å. The core-shell dye according to item 8 of the scope of patent application, wherein the core has a length of 1 nm to 3 nm. The core-shell dye according to item 8 of the scope of patent application, wherein the core has a maximum absorption peak at a wavelength of 530 nm to 680 nm. The core-shell dye according to item 8 of the scope of patent application, wherein the core-shell dye is selected from compounds represented by Chemical Formula 13 to Chemical Formula 26: [Chemical Formula 13] [Chemical Formula 14] [Chemical Formula 15] [Chemical Formula 16] [Chemical Formula 17] [Chemical Formula 18] [Chemical Formula 19] [Chemical Formula 20] [Chemical Formula 21] [Chemical Formula 22] [Chemical Formula 23] [Chemical Formula 24] [Chemical Formula 25] [Chemical Formula 26] . The core-shell dye according to item 8 of the scope of patent application, wherein the core-shell dye includes the core and the shell at a 1: 1 molar ratio. The core-shell dye according to item 8 of the scope of patent application, wherein the core-shell dye is a green dye. The core-shell dye according to item 8 of the patent application scope, wherein the core-shell dye has a maximum absorption wavelength in 600 nm to 700 nm. A photosensitive resin composition comprising a compound according to item 1 of the patent application scope or a core-shell dye according to item 8 of the patent application scope. The photosensitive resin composition according to item 19 of the patent application scope, further comprising a binder resin, a photopolymerizable monomer, a photopolymerization initiator, and a solvent. The photosensitive resin composition according to claim 19, further comprising malonic acid, 3-amino-1,2-propanediol, a silane-based coupling agent containing a vinyl group or a (meth) acryloxy group, Leveling agent, surfactant, free radical polymerization initiator, or a combination thereof. A color filter is manufactured using the photosensitive resin composition according to item 19 of the scope of patent application.