TWI261689B - Pigment dispersion, preparation process of pigment dispersion, colored resin composition, color filter and a liquid crystal display device - Google Patents

Abstract

Provided is a pigment dispersion having excellent depolarizing properties and capable of forming a high-contrast red picture element. The present invention relates to a pigment dispersion which is composed of a pigment, a solvent and a dispersant wherein upon formation of a red pigment element over a glass substrate by using a colored resin composition containing the pigment dispersion, contrast C, that is, a ratio B/A (light intensity B when the substrate is sandwiched between two polarizing plates, the polarizing plates are disposed in parallel to light intensity A when they are disposed at right angles), as measured by a brightness photometer, satisfies the following equation: C >= 4000x-2000 in which x means a chromaticity of a transmitted light, as measured by a spectrophotometer, when exposed to an illuminant C, and the pigment contains an anthraquinone red pigment, preferably C.I. pigment red 177 and an azo yellow pigment, preferably C.I. pigment yellow 150 and has a particle size within a range of from 30 to 500 nm. The present invention further relates to a process for preparing the pigment dispersion, which comprises subjecting a mixture of the pigment, solvent and dispersant to dispersing treatment with beads having an average particle size of from 30 to 500 mum.

Description

[Technical Field] The present invention relates to a pigment dispersion liquid, a method for producing a pigment dispersion liquid, a colored resin composition, a color filter, and a liquid crystal display device. More specifically, the present invention relates to a pigment dispersion having excellent depolarization properties and capable of forming a high contrast red (R) image element, a method of preparing the pigment dispersion, a colored resin composition containing the pigment dispersion, A color filter using the colored resin composition, and a liquid crystal display device using the color filter. [Prior Art] In order to manufacture a color filter for use in a liquid crystal display device or the like, a pigment dispersion method, a dyeing method, an electrodeposition method, and a printing method are conventionally known. Among them, from the viewpoints of spectral properties, durability, pattern shape, and precision, the pigment dispersion method is most common because of the excellent average characteristics. In the pigment dispersion method, a black matrix is formed on a transparent support such as a glass substrate via using a light-shielding metal film such as chromium or chromium oxide. A colored resin composition in which, for example, a red pigment is dispersed (hereinafter, a colored resin composition in which a red, blue or green pigment is dispersed) may be referred to as a "color resist" by spin coating, and the following may be dispersed therein. A colored resin composition having a black pigment called a "black resist" is applied to the entire surface. The resulting film is then exposed through a reticle and developed by exposure to form a red image element. The formation of the three image elements is accomplished by applying a color resist, exposure and development in a manner similar to that described above to form blue and green image elements. Since the black portion 6 326 \patent specification (supplement) \94-02\93132145 1261689 between the image elements is concave, the surface on which the image element is formed is usually covered with a transparent resin such as epoxy resin. Or acrylic resin to make the surface flat. However, this protective film is not provided in some cases. Above the protective film, a transparent conductive film such as an I T 0 (indium tin oxide) film is formed by sputtering or vacuum deposition. There has recently been a tendency to use this pigment dispersion method to form a black matrix. For example, the black matrix is formed by coating a colored resin composition (black resist) in which a black pigment is dispersed, exposure and development. Recent advances in technological innovation have been accompanied by an increase in the screen size of liquid crystal display devices and their use as television sets. In order to be used in a television set, the liquid crystal display device needs to have higher brightness and a wider viewing angle. A VA (Vertical Alignment) system or an I P S (In-Plane Switching) system which can produce a wide viewing angle has been used as the liquid crystal driving system. The wider the viewing angle, the lower the brightness. This reduction in brightness can generally be resolved by increasing the number of backlights. However, increasing the brightness can result in light bubble leakage on the black display, which will result in a decrease in contrast and, in turn, a reduction in image quality. Therefore, the color filter and the light film need to have better depolarization properties and higher contrast. Conventionally, it is preferred to use a diketopyrrolopyrrole red pigment, especially C. I. Pigment Red 2 5 4 as a red image element of a color filter, and which can improve brightness (refer to Japanese Laid-Open Patent No. 2) 2 7 9 1 / 1 9 9 8). However, C.I.Pigment Red 2 5 4 cannot freely improve the contrast due to the problem of the anisotropy of the original particle size and the shape of the crystal particles. It is also known to use 蒽S Kun red pigment, especially C. I. Pigment Red 177, as another red pigment. Compared with C. I. Pigment Red 2 5 4, this pigment is more effective for improving the contrast from the viewpoint of particle size 7 326\patent specification (supplement)\94-02\93132145 1261689 and particle shape. A technique of mixing c. I. Pigment Red 177 with a yellow pigment has been known for many years (Japanese Laid-Open Patent Publication No. 1 4 8 7 1 2 / 1 9 9 8), and it is widely used in a liquid crystal display device. However, some yellow pigments can adversely affect the contrast and, in addition, their inadequate particle size distribution can interfere with the achievement of satisfactory contrast. Regarding the pigment dispersion method which is commonly used for preparing a pigment dispersion liquid, there has been disclosed a method for improving surface glossiness using a specific zirconium-oxygen sintered bead (Japanese Patent Laid-Open Publication No. 1 5 5 5 7 7 / 1 9 9 5) . Those skilled in the art can hardly think of using the aforementioned dispersion method to improve the contrast of color filters. Further, the improvement of the contrast cannot be achieved only by applying the aforementioned dispersion method to a usual pigment. SUMMARY OF THE INVENTION As described above, recently, liquid crystal display devices have spread to televisions, and the viewing angle has become wider and the brightness has become higher. In this situation, there is an increasing demand for the development of color filters having excellent depolarization properties, i.e., higher contrast. This demand has not been fully met. Accordingly, it is an object of the present invention to provide a pigment dispersion having excellent depolarization properties and capable of forming a high contrast red image element, a method of preparing the pigment dispersion, a colored resin composition containing the pigment dispersion, and the like a color filter of a pigment dispersion, and a liquid crystal display device using the color filter. The inventors conducted extensive research to overcome the aforementioned problems. As a result, it was found that a high contrast red image element 3 can be formed by using a pigment dispersion liquid containing a pigment, a solvent and a dispersing agent 8 326\patent specification (supplement)\94-02\93132 M5 1261689 A mixture of red azo-yellow pigments and having a particle size of from 30 to 500 nm to complete the present invention. Therefore, in one aspect of the invention, there is provided a pigment dispersion comprising a pigment and a dispersant, characterized in that when a red pattern is formed on a glass substrate via a colored resin composition using a dispersion of the inclusion material, The contrast calculated by the following equation (1) is C: C=B/A (1) where A and B respectively represent the two polarizing plates at right angles when the glass substrate is sandwiched between the two polarizing plates and when the two polarizing plates are arranged in parallel The intensity of the light measured by the photometer and the chromaticity X measured by the spectrophotometer when exposed to the illuminator C satisfy the following equation (2): C ^ 4 0 0 0 x - 2 0 0 0 ( 2 In the second aspect of the present invention, there is also provided a pigment dispersion comprising a pigment and a dispersing agent, characterized in that the pigment comprises a magenta and an azo yellow pigment, and has a content ranging from 30 to 50. Particle size within 0 nm range. In a third aspect of the present invention, there is also provided a method of a pigment dispersion comprising, when preparing a pigment dispersion, using a bead having an average particle size of from 30 to metre to make a pigment, a solvent and a dispersant Mixed dispersion. In a fourth aspect of the invention, there is also provided a colored resin composition comprising the dispersion of the invention. 326\Patent specification (supplement)\94-02\93132145 9 Materials and encapsulation solvent Preparation of 50 micron pigments 1261689 between the pigments and the brightness of the light and the pigments. In the fifth aspect of the invention, Provided is a colored resin composition comprising a pigment, a solvent, a dispersant, a binder resin, a monomer, and a photopolymerization initiator system, characterized in that a red pattern is formed on a glass substrate by using a colored resin composition containing a pigment dispersion For example, when compared to the component, the comparison C calculated according to the following equation (1): OB/A (1) where A and B respectively represent when the glass substrate is sandwiched between the two polarizing plates and the two polarizing plates are disposed at right angles and when The intensity of the light measured by the luminance photometer when the polarizing plates are arranged in parallel, and the chromaticity X of the transmitted light measured by the spectrophotometer when exposed to the illuminator C satisfy the following equation (2): 4 0 0 0 - 2 0 0 0 ( 2 ) ° In the sixth aspect of the invention, there is also provided a color filter comprising an image element formed using the colored resin composition of the present invention. In a seventh aspect of the invention, a liquid crystal display device including a color filter is also provided. The present invention can produce excellent advantages as described below, so that it has great potential in the industry. 1. The pigment dispersion of the present invention and the colored resin composition of the present invention comprising the pigment dispersion can form a red image element having excellent depolarization properties and thus high contrast. 2. A method of preparing a pigment dispersion according to the present invention is advantageous for the preparation of a pigment dispersion. 3. In the color filter of the present invention and the liquid crystal display device of the present invention, the red image element is excellent in the liquid crystal display device disclosed in the Japanese Patent Publication No. 10 326\Patent Specification (Supplement) Depolarization, and therefore high contrast, so that its quality is excellent and can be effectively increased in degree and viewing angle to meet the needs of larger screen sizes. [Embodiment] Next, the mode for carrying out the invention will be clearly explained. First, a comparison of the red pattern elements formed by the pigment dispersion of the present invention will be explained. The pigment dispersion of the present invention is characterized in that when a red image element is formed on a glass substrate by using a colored resin composition containing a pigment dispersion, a contrast C calculated according to the following equation (1): C: B/A ( 1) wherein A and B respectively represent the light intensity measured by the luminometer when the glass substrate is sandwiched between the two polarizing plates and the two polarizing plates are disposed at right angles and when the two polarizing plates are arranged in parallel, and when exposed to the illuminator C The chromaticity X of the transmitted light measured by the spectrophotometer satisfies the following equation (2): 4 0 0 0 x - 2 0 0 0 ( 2 ) ° The red image element is formed in the following manner. The colored resin composition was applied to a glass substrate to have a dry thickness of 2 μm, followed by drying at 80 ° C for 10 minutes. After the resin was cured by exposure to UV rays, it was crosslinked by heating at 230 ° for 30 minutes, thereby forming a red image element. When exposed to illuminator C, the chromaticity of the transmitted light is measured using a spectrophotometer ("U 4 1 0 0", H i t a c h i L t d · product). When the polarizing plates are placed at right angles and in parallel, to measure the light intensity A and B (candle/square 4 points), the two polarizing plates are closely adhered to the substrate, and the brightness photometer 326\patent specification (supplement)\94- is used. 02\93132145 11 Sexual image and light-drying under the 1261689 ("BM-5A", TOPCON product). When C < 4 Ο Ο Ο x - 2 Ο Ο 0, the image quality deteriorates due to a decrease in contrast and light leakage on the black display. In the present invention, the relationship between the contrast C and the chromaticity X is preferably expressed by the equation (2 - 1), and the equation (2 - 2) is more preferable. C2 4 0 0 0 χ - 1 8 0 0 ( 2 - 1 ) 4000x - 1400 (2-2) The composition of the pigment dispersion of the present invention will be described below. [1] The pigment dispersion is substantially followed by the nitrogen yellow pigment C. I. 'and r 3> • Yan 81, • The pigment dispersion of the present invention has a pigment, a solvent and a dispersant as components, and if necessary, It further contains additives other than the aforementioned components. The ingredients will be clearly stated. [1 - 1 ] Pigment The term "pigment" as used herein means a substance for coloring the pigment liquid of the present invention. In the present invention, a mixture of a crimson pigment and an occasion pigment is preferably used as the pigment. As for the 蒽S Kun red pigment, one or more of C.I. Pigment Red 1.7, C.I. Orange 5 1 , C.I. Pigment Orange 168 and the like can be used. Among them, Pigment Red 1 7 7 (P.R. 1 7 7 ) is particularly suitable because it can be easily converted into fine particles, which is excellent in dispersion stability and fastness.

Examples of azo yellow pigments include C.  I. Pigment Yellow 1, C.  I. Pigment, C.  I. Pigment Yellow 1 0, C .  I. Pigment Yellow 1 2, C.  I. Pigment Yellow 1 3, C.  I material yellow 1 4, C.  I. Pigment Yellow 1 7 , C .  I. Pigment Yellow 5 5, C.  I. Pigment Yellow C.  I. Pigment Yellow 8 3, C.  I. Pigment Yellow 9 3, C.  I. Pigment Yellow 9 4, C.  I 12 326\Patent Specification (Replenishment)\94-02\93132145 1261689 Yellow Y5, C.  I. Pigment Yellow 9 7 , C .  I. Pigment Yellow 1 5 Ο, C.  I. Pigment Yellow C.  I. Pigment Yellow 1 6 6 , C .  I. Pigment 1 6 7 and C.  I · Pigment Yellow 1 800. Used alone or in combination of two or more thereof. Where C.  I. Pigment Yellow 8 3 Pigment Yellow 1 5 0, and C.  I. Pigment Yellow 180 is preferred, of which C.  I. Yan 1 5 0 ( P .  Y .  1 5 0 ) is particularly suitable because it can be easily converted into fine particles and is excellent in dispersibility, spectral transmittance, and fastness. The proportion of the pigment based on the total solid content in the pigment dispersion is usually from 10 to 90% by weight, preferably from 30 to 90% by weight, more preferably from 50% by weight. When the proportion of the pigment in the pigment dispersion is too small, the green pigment dispersion has a lower coloring power, and the film tends to have a relative color density. On the other hand, when the ratio is too large, the dispersion stability is lowered to cause problems such as re-agglomeration and thickening. In the present invention, the term "total content" means all ingredients except for the solvent to be described later. The mixing ratio of the red pigment and the azo yellow pigment is usually from 0 by weight of the azo yellow pigment relative to the 蒽S Kun red pigment.  From 1 to 99%, preferably from 3 to 80% by weight, more preferably from 5 to 60% by weight. When the amount of the yellow pigment is less than the aforementioned range, the hue becomes close to blue, resulting in a decrease in transmittance (chromaticity Y in the X Y Z color scale system). On the other hand, when the amount of the azo yellow pigment is too large, the hue becomes close to yellow, and the red image element is not good. However, in the pigment dispersion of the present invention, when a ruthenium azo yellow pigment is used in combination as a pigment, another pigment can be used in combination without detracting from the advantages of the present invention. Examples of additional materials that can be used in combination include isoporphyrin pigments such as C.  I. Pigment Yellow 1 3 9, C.  326\Patent specification (supplement)\94-02\93132145 13 15 4. It can, C.  I material yellow stable system: 90% is too thick and will be solid 蒽醌 weight azo and guide surface, as a material and invention one face I · Yan 1261689 orange 6 6, C.  I. Pigment Orange 6 9 and C.  I. Pigment red 2 6 Ο, isoindolinone pigment such as C.  I. Pigment Yellow 1 Ο 9, C.  I. Pigment Yellow 1 1 Ο, C.  I. Pigment Yellow 1 7 3 and C · I . The pigments are 161, and the fluorenone (q u i η o p h t h a 1 ο n e ) pigments such as C.  I. Pigment Yellow 1 3 8. These pigments may be used singly or in combination of two or more. When another pigment is used in combination, the ratio thereof is adjusted to be 20% by weight or less based on the weight of the ruthenium red pigment, preferably 10% by weight or less. [1 - 2 ] Solvent In the pigment dispersion of the present invention, the solvent has a function of dissolving or dispersing a pigment, a dispersant, and other components to be added as needed, and adjusting the viscosity thereof. Clear examples of solvents include diisopropyl sulfonate, mineral spirits, n-pentyl alcohol, pentyl ether, ethyl octanoate, n-hexane, diethyl ether, isoprene, ethyl isobutyl ether, butyl stearate, positive Octane, V ars ο 1 # 2, A pc 〇# 1 8 solvent, diisobutylene, amyl acetate, butyl acetate, Apco diluent, dibutyl ether, diisobutyl ketone, methylcyclohexene, fluorenyl Mercapto ketone, propyl ether, dodecane, Socal solvent No.  1 and No.  2. Amyl decanoate, dihexyl ether, diisopropyl ketone, Solveso #15, acetic acid (positive, second 'third) butyl, hexapril, Shell TS28 solvent, gas butane, ethyl amyl ketone, Ethyl benzoate, chloropentane, ethylene glycol diethyl ether, ethyl ruthenate, decyl ketone, decyl butyl ketone, methyl hexyl ketone, decyl isobutyrate, benzonitrile, Ethyl propionate, mercapto cellosolve acetate, methyl isoamyl ketone, decyl isobutyl ketone, propyl acetate, amyl acetate, amyl formate, dicyclohexane, diethylene glycol monoethyl ether Acetate, dipentene, methoxymethylpentanol, decyl amyl ketone, methyl isopropyl ketone, propionate 326 \\ Patent Specification (supplement) \94-02\93132145 14 1261689 Ester, propylene glycol Third butyl ether 'mercaptoethyl ketone, thiol cellosolve, ethyl cellosolve, ethyl cellosolve acetate, carbitol, cyclohexanone, ethyl acetate, propylene glycol, propylene glycol monoterpene ether , propylene glycol monoterpene ether acetate, propylene glycol monoethyl ether, propylene glycol monoethyl ether acetate, dipropylene glycol monoethyl ether, dipropylene glycol monoterpene ether, dipropylene glycol monoethyl ether acetate, 3-propoxypropionic acid 3-ethoxypropionic acid, 3-ethoxypropionate 曱6, 3-ethoxypropionic acid B-6, 3-methoxypropionic acid vinegar, 3-methoxypropionic acid B, 3-methoxy Propionic acid propionate, 3-methoxypropionic acid butyl, diglyme, ethylene glycol ester, ethyl carbitol, butyl carbitol, ethylene glycol monobutyl ether, propylene glycol Third butyl ether, 3-mercapto-3-hydroxybutanol, tripropylene glycol decyl ether and 3-mercapto-3-oxobutyl butyl acetate. These solvents may be used singly or in a mixture of two or more thereof. There is no particular limitation on the content of the solvent in the monolith pigment dispersion of the present invention, but the upper limit thereof is usually 99% by weight. When the content of the solvent exceeds 99% by weight, the ratio of the pigment and the dispersant becomes too small to form a dispersion. In view of the viscosity of the pigment dispersion, the lower limit of the solvent content is usually 70% by weight, preferably 75 % by weight, more preferably 80% by weight. [1 - 3 ] Dispersant As the dispersant, a polymer dispersant and/or a pigment derivative is suitably used. Examples of the polymer dispersant include an amino phthalate dispersant, a polyethyleneimine dispersant, a polyoxyethylene ethyl ether dispersion, a polyoxyethylene diester dispersant, and a sorbitan aliphatic Ester dispersant and aliphatic modified polyester dispersant. Specific examples of such a dispersing agent include "EFKA" (product of EFKAC hemica 1 s BV), "Disperbyk" (product of BYK-Chemie), 15 326\patent specification (supplement)\94-02\93132145 1261689 rDISPARLON" (product of Kusumoto chemicals), "SOLSPERSSE" (product of Zeneca), rKP" (product of Shin-etsu Chemical) and POLYFLOW (product of Kyoeisha Chemical). These polymeric dispersants may be used singly or in combination of two or more thereof. The proportion of the polymer dispersant based on the total solid content of the pigment dispersion is usually from 10 to 90% by weight, preferably from 10 to 70% by weight, more preferably from 10 to 50% by weight. When the proportion of the polymer dispersant in the pigment dispersion is too large, the relative decrease in the proportion of the pigment causes deterioration of the coloring power, and the film thickness tends to be large with respect to the color density. On the other hand, when the proportion of the polymer dispersant is too small, the dispersion stability is lowered and problems such as re-agglomeration and thickening are caused. Examples of the pigment derivative include azo, octacycline, 啥σ丫σding ketone, benzimidazolone, quinacridone, isoindolinone, bismuth well, hydrazine, indanthrene,茈, purple ring S (peri η ο ne ) and diketone 1 ^ D each ϋ 咯 咯 颜料 pigment. In the present invention, it is preferred to use a pigment derivative such as hydrazine or an azo pigment because it is of a type similar to that used as a pigment. These pigment derivatives may be used singly or in combination of two or more thereof. Examples of the substituent of the pigment derivative include a sulfonic acid group, a sulfonylamino group or a fourth salt thereof, a quinone imine methyl group, a dialkylamine alkyl group, a hydroxyl group, a carboxyl group, and a guanamine group. These substituents are each attached to the pigment structure either directly or via a linking group such as an alkyl, aryl or heterocyclic group. As the substituent of the pigment derivative, the sphagnum amine or the fourth salt thereof and the acid-reducing group are preferred, and the rhein group is more preferred. A plurality of such substituents may be linked to a pigmentary structure, or a mixture of compounds having a different number of substituents may be used in the 16 326\patent specification (supplement)\94-02\93132145 1261689. Specific examples of the pigment derivative include a carboxylic acid derivative of an azo pigment and a sulfonic acid derivative of an anthraquinone pigment. The proportion of the pigment derivative based on the total solid content of the pigment dispersion is usually from 0.  1 to 20% by weight, from 0.  It is preferably 5 to 15% by weight, more preferably 1 to 10% by weight. When the proportion of the pigment derivative in the pigment dispersion is too small, the dispersion stability is lowered and problems such as re-agglomeration and thickening are caused. On the other hand, when it is too large, its contribution to dispersion stability is already saturated, and the color purity sometimes decreases by an amount. Therefore, the ratio outside the aforementioned range is not good. In the present invention, even when a polymer dispersant and a pigment derivative are used in combination as a dispersing agent, no problem occurs. [1-4] Another component The other component to be added to the pigment dispersion of the present invention as needed is not particularly limited. However, when the pigment dispersion of the present invention is added to the colored resin composition of the color filter to be described later, the pigment dispersion of the present invention may contain some binder resin which will be described later, since In the case of the pigment dispersion of the present invention, it can improve dispersion stability. In this case, the amount of the binder resin is preferably from 5 to 100% by weight, particularly preferably from 10 to 80% by weight, based on the total amount of the pigment in the pigment dispersion. The amount of the binder resin of less than 5% by weight is not sufficient to improve the dispersion stability. On the other hand, an amount exceeding 100% by weight causes a decrease in the pigment concentration and a sufficient color density cannot be obtained. [1 - 5 ] Particle size distribution of pigments 17 326 \ Patent specification (supplement) \94-02\93132145 1261689 In the pigment dispersion of the present invention, the particle size of the pigment is 30 nm or more, 50 nm Preferably, 80 nm or more is preferred, but 500 nm or less, 350 nm or less is preferred, and 250 nm or less is more preferred. The half value of the width of the particle size distribution is 2,500 nm or less, preferably 150 nm or less, and more preferably 100 nm or less. In the present invention, excellent depolarization effect and high contrast can be achieved by using a specific pigment in combination and adjusting the particle size to fall within the aforementioned predetermined range. It is important to adjust the particle size, especially the half width value, to fall within the foregoing range, and the excellent depolarization effect and high contrast of the present invention cannot be achieved outside the foregoing range. [1 - 6 ] Method for Producing Pigment Dispersion Although various methods can be used to prepare the pigment dispersion of the present invention to achieve the aforementioned particle size distribution, the bead grinding method in which the pigment is dispersed by the collision of hard balls (beads) is especially appropriate. The beads used herein may be made of glass, argon (Zr 0 2 ), chromium, and the like. Among them, beads made of zirconium oxide are suitable because they have a high specific gravity and contain less contaminants such as abrasive powder. The beads which can be used herein generally have an average particle size of from 30 to 500 μm, preferably from 30 to 300 μm, more preferably from 40 to 200 μm. Beads having an average particle size of less than 30 microns are too small to produce sufficient collision energy without sufficient dispersibility. On the other hand, beads having a particle size larger than 500 μm are not suitable for converting the morphology of the pigment into fine particles because the void volume between the beads is too large. In addition, each bead weight and pigment inevitably accept excessive collision energy, making it difficult to reduce the particle size of the pigment to within the range of 30 to 500 nm. 18 326\Patent specification (supplement)\94-02\93132145 1261689 Any dispersing machine can be used for the dispersion treatment as long as it can use the aforementioned beads. Examples include the batch system "T 0 RUS Μ ILL" (product of G etzma η η), the continuous system "A gltator M i 1 1" (product of A shizawa Finetech), and "Pico can ( Pico mill) (product of Asada Iron Works) and "Apex mega" (product of KEMCO). Although the preparation step of the pigment dispersion liquid is not particularly limited, the dispersion using the aforementioned dispersion system is carried out during the preparation of the pigment dispersion liquid. For example, by dispersing a dispersion component such as the aforementioned pigment, dispersant, solvent and, if desired, a binder resin to form a liquid mixture, and then dispersing the resulting mixture by beads in the aforementioned disperser, The desired pigment dispersion is obtained. Although there is no particular limitation on the amount of the beads to be used, the beads are preferably used in an amount of from 50 to 90% by volume of the container volume of the dispersing machine for dispersion treatment. When the amount of beads packed in the dispersion machine is too small, it takes a long time to obtain a pigment dispersion having a desired particle size distribution. On the other hand, when it is too large, it becomes a burden on the dispersing machine, and at the same time the beads are broken and the pigment has a broad particle size distribution. Prior to such dispersion using beads having an average particle size of from 30 to 500 microns, pretreatment such as dispersion, or use up to 500 microns or more may be carried out in a roll mill or kneader. The average particle size of the beads is dispersed. Alternatively, the pigment dispersion thus prepared can be subjected to post-treatment, for example, using "T. K.  Filmics (product of Tokushu Kika Kogyo) or rUlti 丨 naizer (product of Sugino Machine). [2] Color Resin Composition 19 326\Patent Specification (Supplement)\94-02\93132145 1261689 Next, the coloring resin composition of the present invention will be described. The pigment dispersion of the present invention can be used in various applications. It is especially suitable for a color resin composition which is intended to form, for example, an image of an image element of a color filter or a light sheet. In addition to the pigment dispersion of the present invention, the colored resin composition may further comprise a binder resin, a monomer, a photopolymerization initiator, and another solid component. Next, each component will be explained. [2 - 1 ] Examples of the binder resin binder resin include homopolymers such as (meth)acrylic acid, (meth) acrylate, (mercapto) acrylamide, maleic acid, (meth) propylene Nitrile, styrene, vinyl acetate, dichloroethylene and maleimide, a copolymer comprising the monomer, polyethylene oxide, polyvinylpyrrolidone, polyamine, polyamine hydrazine Acid ester, polyester, polyether, polyethylene terephthalate, acetonitrile cellulose, phenolic epoxy (η 〇v ο 1 ac ) resin, resol phenolic resin, polyvinyl phenol and polyethylene Butyral. In the present invention, the term "(meth)acrylic acid" means both acrylic acid and mercaptoacrylic acid. The same applies to (mercapto) acrylate and (meth) propylene sulfhydryl groups. The term "(co)polymer" refers to both a single polymer (homopolymer) and a copolymer, and the term "acid" refers to both an acid and an anhydride thereof. In the present invention, the term "acrylic resin" means a (co)polymer comprising (mercapto)acrylic acid and a (co)polymer comprising a carboxyl group-containing (fluorenyl)acrylate. Among the above-mentioned binder resins, an acrylic resin having a monomer having a carboxyl group or a phenolic hydroxyl group in its side chain or main chain is preferred. The use of an acrylic resin having such a functional group as a binder resin can be developed in an alkaline solution when a color filter is produced. Carboxyl group-containing acrylic resin such as propylene 20 326\patent specification (supplement)\94-02\93132145 1261689 acid (co)polymer, and anhydride-modified resin such as styrene-maleic anhydride resin and The phenolic epoxy epoxide acrylate is more preferred because it can be developed in a highly alkaline solution. A (co)polymer comprising (fluorenyl)acrylic acid and a (co)polymer comprising a carboxyl group-containing (fluorenyl) acrylate are particularly preferred. These acrylic resins are advantageous in that they have excellent development properties and transparency, and can be prepared by using them in combination with various monomers, and the processes thereof can be easily controlled. The acrylic acid-based resin system as a binder resin is used, for example, a (co)polymer mainly comprising the following monomers. Examples of the monomer include compounds obtained by adding an acid or an acid anhydride to a (hydroxy) hydroxyalkyl acrylate. (Hydroxyl) hydroxyalkyl acrylates include (fluorenyl) acrylic acid, succinic acid (2-(indenyl) propylene oxide), adipic acid (2-propylene oxirane), citric acid (2 - ( Mercapto) propylene oxide, hexahydrophthalic acid (2-(fluorenyl) propylene oxy) ester, maleic acid (2-(fluorenyl) propylene oxy) ester, succinic acid ( 2-(indenyl)propenyl propyl acrylate, adipic acid (2-(methyl) propylene oxypropyl) ester, hexahydrofuric acid (2-(indenyl) propylene oxypropyl) ester, citric acid (2-(indenyl) propylene oxypropyl) ester, maleic acid (2-(indenyl) propylene oxypropyl) ester, succinic acid (2-(indenyl) propylene oxy butyl) ester, Diacid (2-(indenyl) propylene oxy butyl) ester, hexahydrofuric acid (2-(indenyl) propylene oxy butyl) ester, citric acid (2-(indolyl) propylene oxybutyl) And maleic acid (2-(indenyl) propylene oxybutyl) ester. The acid (anhydride) includes succinic acid (succinic anhydride), citric acid (phthalic anhydride), and maleic acid (maleic anhydride). Examples of the monomer to be copolymerized with the aforementioned monomer include styrene monomers such as styrene, α-styrene, and vinyl fluorene; carboxylic acid containing unsaturated groups 21 326\patent specification (supplement)\94 -02\93132145 1261689 such as cinnamic acid, maleic acid, fumaric acid, maleic anhydride and itaconic acid; (meth) acrylate such as bismuth (mercapto) acrylate, Mercapto) ethyl acrylate, propyl (mercapto) acrylate, allyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, hydroxy (meth) acrylate Ethyl ester, hydroxypropyl (meth) acrylate, benzyl (meth) acrylate, hydroxyphenyl (meth) acrylate, and (methoxy) methoxy acrylate, via lactones such as ε - hexane PCT, PCT/A acrylonitrile such as acrylonitrile and mercapto acrylonitrile; acrylamide such as (A) Acrylamide, hydrazine-hydroxymethyl acrylamide, hydrazine, hydrazine-dimercapto acrylamide, hydrazine-mercaptopropenyl morpholine Ν, Ν-dimethylaminoethyl (mercapto) acrylate, and hydrazine, hydrazine-dimethylaminoethyl acrylamide; and vinyl esters such as vinyl acetate, tetradecene carbonate (ν iny 1 Versatate), ethyl propionate, ethyl cinnamate and trimethylacetate. The binder resin for improving the strength of the film coated on the substrate is obtained by copolymerizing at least one monomer (a) selected from the following exemplary monomers with at least one monomer (b) selected from the following exemplary monomers; The acrylic resin obtained by polymerization is particularly preferred. Monomer (a): a phenyl group-containing monomer such as styrene, α-mercaptostyrene, (benzyl)acrylic acid, hydroxyphenyl (meth) acrylate, decyl phenyl acrylate, Hydroxyphenyl (fluorenyl) acrylamide and hydroxyphenyl (mercapto) propylene sulfonamide. Monomer (b): (mercapto)acrylic acid and carboxyl group-containing (fluorenyl) acrylate such as (2-(fluorenyl) propylene oxy ethoxide) succinic acid, adipic acid (2-propylene oxirane ethyl ester, Capric acid (2-(indenyl)propene oxime), hexahydrofurfuric acid (2-(methyl) 22 326\patent specification (supplement)\94-02\93132145 1261689 propylene oxime), And maleic acid (2-(indenyl) propylene oxide). The monomer (a) is usually added in an amount of from 10 to 98 mol%, preferably from 20 to 80 mol%. 30 to 70% of the molar % is better, and the monomer (b) is usually added in an amount of 2 to 90% by mole, preferably 20 to 80% by mole, and 30 to 70 moles. It is preferable that the binder resin has an acrylic resin having an ethylenic double bond in its side chain, and the use of the resin improves the photocurability of the colored resin composition of the present invention, thereby enabling analysis. And further improvement of adhesion between the image element according to the second aspect of the present invention and the substrate of the color filter. Examples of the method of introducing an olefinic double bond to the side chain of the acrylic resin include Japanese Patent Publication No. 3 4 4 4 3 / 1 9 7 5 and Japanese Patent Publication No. 3 4 4 4 4 / 1 9 7 5: (1) making a carboxyl group of an acrylic resin and having a glycidyl group a method of reacting a compound of both an epoxycyclohexyl group and a (fluorenyl)propenyl group, and (2) a method of reacting a radical of an acrylic resin with a chlorinated acid. The acrylic resin having an ethylenic double bond in the chain can be obtained by subjecting a carboxyl group-containing or hydroxyl group-containing acrylic resin to a glycidyl group such as (mercapto)acrylic acid, propyl glycidyl ether, and α-ethyl acrylate glycidol. S, crotonyl glycidyl _, (iso)crotonic acid glycidyl sulfonate, (mercapto)acrylic acid (3,4-epoxycyclohexyl) decyl ester, chlorinated (hydrazino) acrylate or (methyl) Prepared by reacting a compound of propylene gas by reacting a carboxyl group- or hydroxyl group-containing acrylic resin with an alicyclic epoxy compound such as (3,4-epoxycyclohexyl) decyl (meth) acrylate. The compound is particularly preferred. Regarding the aforementioned introduction of an olefinic double bond to a carboxy group Or hydroxy propyl 23 326\patent specification (supplement) \94-02\93132145 1261689 a method in an olefinic resin, which bonds a compound having an ethylenic double bond to 2 to 50 mol%, and 5 to 40 Preferably, the carboxy or hydroxy group is preferably a carboxy group or a hydroxy group. Preferably, the carboxyl group content is in the range of 5 to 200 mg Κ Η 酸 based on the acid value. When the acid value is less than 5 mg Κ Ο Η / In the case of gram, the resin is insoluble in the alkaline developer. On the other hand, an acid value of more than 200 mg Κ Η / 克 sometimes lowers the development sensitivity. The weight average molecular weight of the acrylic resin measured by GPC ( M w ) is preferably from 1,0 0 0 to 1 0 0,0 0 0. When the weight average molecular weight is less than 1,0 0 0, the resulting colored resin composition cannot be uniformly coated. A weight average molecular weight of more than 100,0 0 has a tendency to lower the developing property. The binder resin is usually added in an amount of from 10 to 80% by weight, preferably from 20 to 70% by weight, based on the total solid content of the colored resin composition of the present invention. [2-2] Monomer Any polymerizable low molecular compound can be used as the monomer contained in the colored resin composition. A compound having at least one ethylenic double bond and capable of undergoing addition polymerization (hereinafter simply referred to as "rare compound") is preferred. When the colored resin composition of the present invention is exposed to an active ray, the rare compound undergoes addition polymerization and is cured by the action of a photopolymerization initiator system which will be described later. In the present invention, the term "monomer" means a substance relative to a so-called polymer substance. Therefore, it includes not only narrowly defined monomers, but also dimers, trimers, and oligomers. Examples of the olefinic compound include an unsaturated carboxylic acid, an ester of an unsaturated carboxylic acid and a monohydroxy compound, an ester of an aliphatic poly-based compound and an unsaturated acid retardant, and an aromatic 24 326\patent specification (supplement)\94-02 \93132145 1261689 an ester of a polyhydric compound and an unsaturated carboxylic acid, an ester obtained by esterification of an unsaturated carboxylic acid and a polycarboxylic acid with a polyhydroxy compound such as an aliphatic polyhydroxy compound or an aromatic polyhydroxy compound, And an olefinic compound having an amino phthalate structure obtained by reacting a polyisocyanate compound with a hydroxy compound containing a (fluorenyl) acrylonitrile group. Examples of the aliphatic poly-based compound and the unsaturated traconic acid include acrylate such as ethylene glycol diacrylate, triethylene glycol diacrylate, trishydroxypropyl propane triacrylate, and trishydroxyl Ethane triacrylate, pentaerythritol diacrylate, pentaerythritol triacrylate, pentaerythritol tetraacrylate, diisopentaerythritol tetraacrylate, diisopentaerythritol pentaacrylate, diiso Pentaerythritol hexaacrylate and glycerin acrylate; and mercapto acrylate, itaconate, which are prepared by using methacrylic acid, itaconic acid, crotonic acid, maleic acid instead of the acrylic portion of the acrylate, respectively. Crotonate, and maleate. Examples of the ester of an aromatic polyhydroxy compound and an unsaturated carboxylic acid include hydroquinone diacrylate, hydroquinone dimercapto acrylate, resorcinol diacrylate, resorcinol dimercapto acrylate, and gallic phenol trisole. Acrylate. The ester obtained by esterification of an unsaturated carboxylic acid and a polycarboxylic acid with a polyhydroxy compound may not necessarily be a single substance but a mixture. Typical examples include condensates of acrylic acid, citric acid and ethylene glycol, condensates of acrylic acid, maleic acid and diethylene glycol, methacrylic acid, condensates of citric acid and pentaerythritol, and acrylic acid, a condensate of adipic acid, butylene glycol and glycerin. 25 3 26\patent specification (supplement)\94-02\93132145 of an olefinic compound having an amino phthalate structure prepared by reacting a polyisocyanate compound with a hydroxy compound containing a (fluorenyl) acrylonitrile group Examples of 1261689 include aliphatic diisocyanates such as hexamethylene diisocyanate or tridecyl hexane diisocyanate, alicyclic diisocyanates such as cyclohexane diisocyanate or isophorone diisocyanate, or aromatic Diisocyanates such as ti~ilene diisocyanate or diphenyldecane diisocyanate and hydroxy compounds containing (fluorenyl) acrylonitrile groups such as 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 3 - a reaction product between -hydroxytripropenyloxymethyl)propane or 3-hydroxy(1,1,1-trimercaptopropenyloxymethyl)propane. Examples of the olefinic compound other than the aforementioned olefinic compound include acrylamide such as ethylene bis acrylamide; allyl ester such as diallyl phthalate; and vinyl containing compounds such as divinyl phthalate. The monomer is usually added in an amount of from 10 to 80% by weight, preferably from 20 to 70% by weight, based on the total solid content of the colored resin composition of the present invention. [2-3] Photopolymerization Initiator System When the colored resin composition of the present invention contains a rare compound as the above-mentioned monomer component, the addition has a decomposition reaction or hydrogen abstraction reaction and polymerization activity by direct absorption of light or photosensitization. A photopolymerization initiator system component which functions as a radical is preferred. The "photopolymerization initiator system component" as used herein means a mixture of a photopolymerization initiator, an accelerator, and an additive such as a sensitizing pigment. Examples of the photopolymerization initiator constituting the photopolymerization initiator system include a metal bicyclopentane (meta 1 1 〇cene ) compound, such as described in Japanese Laid-Open Patent No. 1 5 2 3 9 6 / 1 9 8 4 and 1 a dicyclopentadienyl titanium compound in 5 1 1 9 7 / 1 9 8 6; a radical activator such as hexaaryldiimidazole derived from Japanese Laid-Open Patent Publication No. 3 9 5 03 / 1 9 9 8 Substance, dentate-s-three-sigma well derivative 26 326\patent specification (supplement)\94-02\93] 32145 1261689 substance, N-aryl-α'-amino group S such as N-phenylglycol Acid, N-aryl-α-amino acid salt and Ν-aryl-α-amino acid ester; α-aminoalkyl phenone compound; and as disclosed in Japanese Laid-Open Patent No. 2000-80 Ester ester initiator in 0 6 8 . Specific examples of the polymerization initiator which can be used in the present invention include: a halogenated tri-negative derivative such as 2-(4-oxophenyl)-4,6-bis(trichloroindenyl)-s-three tillage 2-(4-oxo-naphthyl)-4,6-bis(trichloroindenyl)-s-trisole, 2-(4-ethoxynaphthyl)-4,6-bis(trichloroindenyl) )-s-three tillage and 2-(4-ethoxycarbonylnaphthyl)-4,6-bis(trimethylhydrazinyl)-s-three spray; halogenated oxadiazole derivatives such as 2-trichloro Mercapto-5 - ( 2 '-benzofuranyl)-1,3,4-oxadiazole, 2-trimethylsulfonyl-5-[stone-(2'-benzofuranyl)vinyl]- 1,3,4-oxadiazole, 2-trichloroindolyl-5-[yS-(2,-(6"-benzofuranyl)vinyl)]-l,3,4-oxadiazole and 2-tris-decyl-5-furyl-1,3,4-oxadiazole; imidazole derivatives such as 2-(2'-chlorophenyl)-4,5-diphenylimidazole dimer, 2 - ( 2 '-chlorophenyl)-4,5-bis(3 '-nonyloxyphenyl)imidazole dimer, 2 - ( 2 '-fluorophenyl)_ 4,5 -diphenylimidazole dimerization 2,( 2 '-indolylphenyl)-4,5-diphenylimidazolium dimer and (4'-nonyloxyphenyl)-4,5-diphenyl Dimers; benzoin alkyl ethers such as benzoin decyl ether, benzoin phenyl ether, benzoin isobutyl ether and benzoin isopropyl ether; anthracene derivatives such as 2-mercaptopurine, 2-ethylhydrazine醌, 2 - tert-butyl oxime and 1-chloropurine; diphenyl ketone derivatives such as diphenyl ketone, Mich 1 er ' s ketone, 2-nonyldiphenyl Ketone, 3-mercaptodiphenyl ketone, 4-nonyldiphenyl ketone, 27 326\patent specification (supplement)\94-02\93132145 1261689 2 -chlorodiphenyl ketone, 4 -bromodiphenyl Ketones and 2-carboxydiphenyl ketones; acetophenone derivatives such as 2,2-dimethoxy-2-phenylacetophenone, 2,2-diethoxyacetophenone, 1-hydroxycyclohexyl Phenyl ketone, α-hydroxy-2-indolyl phenylacetone, 1-hydroxy-1-methylethyl-(p- cumyl) ketone, 1-hydroxy-1-(p-dodecylphenyl) ketone , 2-methyl-(4-(methylthio)phenyl)-2-pyrene 17-linyl-1-propanone and 1,1,1-trichloroindolyl-(p-butylphenyl)one; -oxydibenzothiazepine compounds such as 9-oxodibenzothiopyran, 2-ethyl-9-oxodibenzothiazepine, 2-isopropyl-9-oxodibenzo Slightly sulphate, 2-chloro-9-oxodibenzothiopyran, 2,4-dimercapto-9-oxodibenzothiopyran, 2,4-diethyl-9-oxodibenzothione And 2,4-diisopropyl-9-oxydibenzine thiopyran, a benzoate derivative such as ethyl p-nonylaminobenzoate and p-diethylaminobenzoate; Acridine derivatives such as 9-phenyl acridine and 9-(p-oxophenyl) acridine; η well derivatives such as 9,10-dimercaptobenzophenone oxime; anthrone derivatives such as benzene And anthracene; dicyclopentadienyl titanium derivatives such as di-cyclopentadienyl-T i -di-chloride, di-cyclopentadienyl-Ti-bis-phenyl, di-cyclopentadienyl -Ti-bis-2,3,4,5,6-penta-benzene-1-yl, di-cyclopentadienyl-ti_bis-2,3,5,6-tetrafluorophenyl-1-yl , di-cyclopentadienyl-Ti-bis-2,4,6-trioxaphenyl-1-yl, di-cyclopentadienyl-Ti_2,6-di-fluorophenyl-1-yl, di- Cyclopentadienyl-Ti-2,4-di-fluorophenyl-1-yl, bis-indolylcyclopentadienyl-but-1-bis-2,3,4,5,6-pentafluorobenzene- 1-yl, bis-fluorenylcyclopentadienyl-buteb-bis-2,6-diphenyl-buyl and di-cyclopentadienyl-Ti-2,6-di-s--3-(pyl - L-yl)-phenyl-1-yl; 326\Patent Specification (supplement)\94-02\93 ] 32145 28 1261689 α-Amine alkyl phenone compounds such as 2-indolyl-1 - [ 4 -(曱Thiothio]-2-ifosyl sulphide-1-one, 2-pyristyl-2-diamido-1-(4-phenyl)butanone-2-diguanidin-1- (4-Imfolin Benzene J -1- ketone, 4-diguanamine ethyl benzoate, 4-diaminoaminoisoamyl ester, 4-diethylaminoacetophenone, 4-II Amidoxime, 2-ethyl-1,4-dimethylaminobenzoate, 2,5-bis(4-diethylaminobenzylidene J ketone, 7-diethylamino-3 (4-diethylaminophenylhydrazine), oxacin, 4-(diethylamino)chalcone; and oxime ester compounds such as 1,2-octanedione, 1-[4-]-benzene Thio)phenyl]-2-(0-phenylhydrazinyl), 2-ethoxy-1,2-diphenylethanone, 1-yl-6-(2-mercaptophenylhydrazino)-9H -oxazol-3-yl], and 1-(0-肟). As the accelerator constituting the component of the photopolymerization initiator system, &gt; alkyl dialkylaminophenyl phthalate such as N,N-diammonium benzoate ethyl ester heterocyclic compound such as 2-mercaptobenzothiazole , 2-nonylbenzomercaptobenzimidazole, and an aliphatic polyfunctional thiol compound. These photopolymerization initiators and accelerators may each be used singly or in combination of both. Specific examples of the components of the photopolymerization initiator system include, for example, the description of Chemical (Fine Chemical) (Vol. 20, No.  4, 19 9 1 曰) Dialkyl acetophenone derivatives, benzoin 9-oxodibenzothiopyran derivatives on pages 16 to 26, as described in Japanese Patent Publication No. 4 03 3 2 3 / 1 9 8 3 and Japanese Patent Publication No. 3 7 3 7 7 / 1 9 7 No. 2 imidazole derivatives and S-Trisinyl tri-derivatives, and combinations 326\ patent specification (supplements) ) \94-02\93132145 29 ) Benzofenebine) Butylphthalic acid hexyl group ^) Cyclohexyl and - [9-Ethyl fluorenyl group has N, N-, and contains and 2 - above "Fine March 1 Biological and sixth aryl double-ring 1261689 pentadienyl titanium, dibenzopyran pigment, and a system having an amine group or a urethane group and capable of undergoing addition polymerization of an ethylenic saturated double bond-containing compound The photopolymerization initiator system component is usually 0 in terms of the total solid content of the colored resin composition of the present invention.  Add 1 to 30% by weight to 0.  5 to 20% by weight is preferred, 0.  7 to 10% by weight is more preferable. When the amount is too small, it sometimes causes a decrease in exposure sensitivity, and when the amount is too large, the solubility of the unexposed portion in the developer is lowered, which causes development failure. If desired, the photopolymerization initiator system component may contain a sensitizing dye depending on the wavelength of the image exposure source to enhance the sensitivity of the reaction. Examples of such sensitizing dyes include dibenzopyran pigments as described in Japanese Laid-Open Patent Publication No. 2 2 1 5 5 8 / 1 9 9 2 and 2 1 9 7 5 6 / 1 9 9 2, as illustrated a heterocyclic-containing scavenger pigment in Japanese Laid-Open Patent Publication No. 2 3 9 7 0 3 / 1 9 9 1 and 2 8 9 3 3 5 / 1 9 9 3; as disclosed in Japanese Laid-Open Patent No. 2 3 9 3 - keto-encain-based compound of 7 0 3 / 1 9 9 1 and 289335/1993; as described in Japanese Laid-Open Patent Publication No. 1 9 2 4 0 / 1 9 94, And as disclosed in Japanese Laid-Open Patent No. 2 5 2 8 / 1 9 7 2 and 1 5 5 2 9 2 / 1 9 6 9 , Japanese Patent Publication No. 3 7 3 7 7 / 1 9 7 0, Japanese Public Patent 8 8 1 8 3 / 1 9 7 2, 112681/1977, 15503/1983, 88005/1985, 56403/1984, 69/1990, 168088/1982, 107761/1993, 210240/1993 and 2 8 8 8 1 8 A coloring agent having a dialkylaminobenzene structure in / 1 9 9 2 . Among these sensitizing dyes, an amine-based dye is preferred, and a compound having both an amine group and a phenyl group in one of the molecules is more preferable. Examples of particularly preferred dyes include diphenyl ketone compounds such as 4,4 '-diguanidinodiphenyl ketone, 4,4'-diethylaminodiphenyl ketone, 2-aminodiphenyl ketone, 4 -amino 30 326\patent specification (supplement)\94-02\93132145 1261689 diphenyl ketone, 4,4'-diaminodiphenyl ketone, 3,3'-diaminodiphenyl ketone and 3,4-diaminodiphenyl ketone; and a compound containing p-dialkylamine phenyl such as 2-(p-diamine phenyl)benzoxazole, 2-(p-diethylamine phenyl)benzene crocodile Oxazole, 2-(p-diamine phenyl)benzo[4,5]benzoxazole, 2-(p-diamine phenyl)benzo[6,7]benzoxazole, 2,5- Bis(p-diethylamine phenyl)-1,3,4-: azole, 2-(p-diamine phenyl)benzothiazole, 2-(p-diethylamine phenyl)benzothiazole, 2- ( P-diamine phenyl) benzimidazole, 2-(p-diethylamine phenyl) benzimidazole, 2,5-bis(p-diethylamine phenyl)-1,3,4-thiadiazole, ( P-diamine phenyl) ° pyridine, (p-diethylamine phenyl) anthopidine, (p-diamine phenyl) 啥 σ lin, (p-diethylamine phenyl) 啥 σ lin, (pair two Indole phenyl) Pyrimidine (p-phenyl diethylamine). Among them, 4, 4'-dialkylaminodiphenyl ketone is preferred. These sensitizing dyes may be used singly or in combination of two or more thereof. The proportion of the sensitizing dye in the colored resin composition of the present invention is usually from 0 to 20% by weight, based on the total solid content of the colored resin composition.  2 to 15% by weight is preferred, from 0.  5 to 10% by weight is more preferable. [2 - 4 ] Another solid component The colored resin composition of the present invention may contain another solid component other than the above components as needed. Examples thereof include a surfactant, a thermal polymerization inhibitor, a plasticizer, a storage stabilizer, a surface protectant, an adhesion improver, and a development improver. As the surfactant, various surfactants such as anionic, cationic, nonionic and amphoteric surfactants can be used, but nonionic surfactants are preferred because they are less likely to adversely affect various properties of the resin composition. Based on the total solid content of the colored resin composition, the ratio of surfactant 31 326\patent specification (supplement)\94-02\93132] 45 1261689 is usually from 0.  0 0 1 to 10% by weight, preferably from 0. 0 0 5 to 1% by weight, preferably from 0.  0 1 to 0.  5 wt% is better, from 0.  0 3 to 0.  3 wt% is the best. As the thermal polymerization inhibitor, hydrogen acid, anti-oxygen S, gallium S, catechu S, 2,6-t-butyl-p-quinone and /3-naphthoquinone can be used. It is preferably added in the range of from 0 to 3% by weight based on the total solid content of the colored resin composition. For the plasticizer, use 3 major acid dioctyl vinegar, S too acid di-dodecane S, triethylene glycol dicaprylate, dimethyl glycol phthalate, triterpene phosphate, hexa Dioctyl acid ester, dibutyl sebacate or triethylene glycerol. It is preferred to add it in an amount of from 10% by weight or less based on the total solid content of the colored resin composition. [2 - 5 ] Preparation of a colored resin composition To prepare a colored resin composition of the present invention, a predetermined amount of the solvent and the binder resin, and optionally a monomer, a photopolymerization initiator system component, And another component is added to the above-described pigment dispersion of the present invention to prepare a homogenous dispersion. Since the fine dust powder is mixed in the dispersion or the mixture during its formation, it is preferred to filter the colored resin composition thus obtained to remove it. In the coloring resin composition of the present invention, the solvent content is preferably in the range of from 70% by weight to 99% by weight, based on the reason for the solvent content in the pigment dispersion, from 7 5 It is especially preferred to weigh from 90% by weight. The coloring resin composition of the present invention 32 326\patent specification (supplement)\94-02\93132145 1261689 prepared by mixing and dispersing components such as the pigment dispersion liquid, the solvent and the binder resin of the present invention. The particle size distribution of the pigment contained in the colored resin composition is substantially the same as the distribution in the pigment dispersion. Therefore, the aforementioned particle size can be maintained. When a red image element is formed on a glass substrate by using the colored resin composition prepared in this manner, a comparison C calculated according to the following equation (1): C = B/A (1) where A and B respectively Representing the light intensity measured by the brightness photometer when the glass substrate is sandwiched between the two polarizing plates and the two polarizing plates are disposed at right angles and when the two polarizing plates are arranged in parallel, and when the illuminator C is exposed, the spectrophotometer is used. The measured chromaticity X of the transmitted light satisfies the following equation (2): C$ 4 0 0 0 x - 2 0 0 0 ( 2 ), wherein the red image element thus formed has a high contrast. In C &lt; 4 0 0 0 X - 2 0 0 0, the contrast of the red image elements is low and light leakage occurs on the black display, resulting in degradation of image quality. In the colored resin composition of the present invention, the comparison C and the chromaticity X satisfy the following equation (2 - 1), and the following equation (2 - 2) is more preferable. C$ 4 0 0 0 x- 1 8 0 0 ... (2-1 ) C ^ 4 0 0 0 x - 1 4 0 0 (2-2) [3] Color filter, light sheet The following will explain the present invention. Color filter. The color filter is produced by disposing a black matrix on a transparent substrate and then continuously forming red, green, and blue image elements, the order of which is not limited thereto. In the production of such a color filter, the composition of the present invention is used as a coating solution for forming a red image element, using the 33 326 \patent specification (supplement) \94-02\93132145 1261689 color resin composition. The image elements of the respective colors are formed by applying a black resist to the transparent substrate, or applying a red, green or blue resist to the surface of the resin black matrix formed over the transparent substrate or using a chromium compound or another light-shielding metal material. The surface of the metal black matrix is then formed by heat drying, imagewise exposure, development and thermal curing. [3 - 1] Transparent substrate (support) Any material can be used as a transparent substrate of a color filter as long as it is transparent and has appropriate strength. Examples of materials include thermoplastic resins such as polyester resins, for example, polyethylene terephthalate, polyolefin resins such as polypropylene and polyethylene, polycarbonate, poly(decyl methacrylate), and poly A sheet made of sulfone; a sheet made of a thermosetting resin such as an epoxy resin, an unsaturated polyester resin, and a poly(fluorenyl)acrylic resin; and various glasses. Among them, glass and a heat-sensitive resin are preferable in consideration of heat resistance. If necessary, the transparent substrate or the substrate on which the black matrix is formed may be subjected to corona discharge treatment, ozone treatment, or a film formation treatment using a decane coupling agent or a resin such as an amino phthalate resin to improve surface physical properties including adhesion. . The thickness of the transparent substrate is usually from 0.5 to 10 mm, preferably from 0.1 to 7 mm. When a film is formed using a resin, the thickness thereof is usually from 0.01 to 10 μm, preferably from 0.05 to 5 μm. [3 - 2] Black matrix A black matrix is formed on a transparent substrate using a light-shielding metal film or a colored resin composition of a black matrix. Examples of the light-shielding metal material include chromium compounds such as metallic chromium, chromium oxide, and chromium nitride, and nickel-tungsten alloys. Material 34 326\Patent Specification (Repair)\94-02\93132145 1261689 Stacking of multiple layers. The black matrix can be formed by forming the metal light-shielding film by sputtering, forming a desired pattern over the film through the positive photoresist, using mixed ammonium nitrate (IV) and perchloric acid and/or nitric acid. The I insect engraving agent is engraved or another material is engraved with a suitable insect engraving agent, and then the positive photoresist is stripped by a special release agent. In the foregoing case, a film of a metal or metal metal oxide is formed on a transparent substrate via deposition or subtraction. Next, after forming a film of the colored resin composition on the film, the resulting film is exposed and developed through a mask having a repeating pattern such as a stripe, a mosaic or a triangle. A black matrix can also be formed by the film formed by the remainder. When a colored resin composition of a black matrix is used, the black matrix is formed by using a colored resin composition containing a black material. It is expressly stated that the black matrix may comprise one or more black materials such as carbon black, graphite, iron black, aniline black, cyanine black and titanium black via use or comprise a mixture of red, green and blue pigments or optionally selected from inorganic or A colored resin composition of a black material obtained by dyeing an organic dye, and formed by a method similar to that described above for forming a red, green or blue image element. [3 - 3] Formation of image element [3 - 3 _ 1 ] Formation of film A colored resin composition containing a colored material (pigment) selected from one of red, green and blue materials is coated thereon to form black A transparent substrate of the substrate. After drying, the photomask is placed on the formed film, and the image is exposed through the photomask, developed and thermally cured or photocured if necessary, in the form of 35 326\patent specification (supplement)\94·02 \93132145 1261689 An image component that forms the color layer of the image element. The color filter image can be formed by performing the aforementioned operations on the three colored resin compositions of red, green, and blue. The colored resin composition of the color filter can be applied to the transparent substrate by a rotator method, a w bar coating method, a flow coating method, a die coating method, a roll coating method or a spray coating method. Among them, the oral mode coating method is preferable because it can greatly reduce the amount of the coating solution used, and it is not affected by the fog which will adhere when the spin coating method is used in other cases. Therefore, the generation of foreign substances can be suppressed. When the film of the colored resin composition is too thick, it interferes with the smooth pattern development and the gap adjustment in the liquid crystal lattice forming step, and the too thin film sometimes interferes with the performance of the desired color due to difficulty in increasing the pigment density. The thickness of the film is preferably from 0.2 to 20 μm, more preferably from 0.8 to 5 μm, even more preferably from 0.8 to 5 μm. [3 - 3 - 2 ] Drying of the film It is preferable to dry the film formed by applying the colored resin composition to the transparent substrate using a hot plate, an I R oven, a convection oven or the like. Drying is usually carried out in two stages, i.e., preliminary drying and drying by reheating. The preliminary drying conditions may be selected depending on the kind of the solvent component or the performance of the dryer to be used. The drying time is usually selected from the range of 150 to 80 ° C for 15 to 5 minutes depending on the kind of the solvent component or the performance of the dryer to be used, and is selected from the group consisting of 50 to 70 ° C. A range of seconds to 3 minutes is preferred. Drying by reheating is carried out at a temperature higher than the preliminary drying temperature into the line of 36 326\patent specification (supplement)\94-02\93132] 45 1261689, preferably from 50 to 2 Ο 0 °C, Better from 70 to 1 60 °C, especially from 130 °C. The drying time varies depending on the heating temperature, but it is preferably from 10 minutes to 10 minutes, preferably from 15 seconds to 5 minutes. The drying temperature is better as the adhesion to the transparent substrate. Excessive drying temperatures can degrade the binder and initiate thermal polymerization, which is presumably cause development failure. Another alternative to underdrying is to dry the film by vacuum drying in a vacuum chamber. [3-3-3] Exposure step Imagewise exposure is carried out by superposing a negative matrix pattern over the dried thin layer of the colored resin composition and irradiating the ultraviolet rays or rays from the light source through the mask pattern. If necessary, the exposure can be carried out by forming an oxygen layer such as a layer of polyethene alcohol on the film of the colored resin composition, and the sensitivity of the film is lowered by oxygen. There is no particular limitation on the light source used for image exposure. The utility model comprises a lamp light source such as a gas lamp, a ii lamp, a xenon lamp, a high pressure mercury lamp, a super mercury lamp, a metal ifi lamp, a medium pressure mercury lamp, a low pressure mercury lamp, a carbon arc and a lamp; and a laser light source such as an argon ion mine. Shot, YAG laser, excimer homo-nitrogen laser, cadmium-cadmium laser and semiconductor laser. A filter can be used when exposed to specific light. [3 - 3 - 4 ] Developing step After the above imagewise exposure, development can be carried out using an organic solvent or an aqueous solution containing a surfactant compound. The aqueous solution may contain an organic solvent, a buffer, a binder, or a dye or pigment. Examples of the test compound include inorganic test compounds such as hydroxide 326\patent specification (supplement)\94-02\93132145 37 70 to 10 seconds high, the agent tree is warm and the film is visible to block the high pressure firefly. Light "shooting, wavelength and step 1261689 sodium, potassium hydroxide, lithium hydroxide, sodium carbonate, potassium carbonate, sodium hydrogencarbonate, potassium hydrogencarbonate, sodium citrate, potassium citrate, sodium metasilicate, sodium phosphate, phosphoric acid Potassium, sodium hydrogen phosphate, potassium hydrogen phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate and hydroxide, and organic basic compounds such as mono-, di- or triethanolamine, mono-, di- or tridecylamine, single -, di- or triethylamine, mono- or diisopropylamine, n-butylamine, mono-, di- or triisopropanolamine, ethyleneimine, ethylene diimine, tetraammonium hydroxide (TMA Η) And choline. These basic compounds may be used singly or in combination of two or more. Examples of the surfactant include nonionic surfactants such as polyoxyethylene ethyl ether, polyoxyethylene alkyl aryl Ether, polyoxyethylene ethyl acrylate, sorbitan; (: complete ester and monoglyceride ): complete SI; anionic surfactants such as alkyl benzene sulfonate, alkyl naphthalene sulfonate, alkyl sulfate, alkyl tartaric acid S and continuous acid glass S acid; and amphoteric surfactant Such as a burnt betaine and an amino acid. These surfactants may be used singly or in combination of two or more. Regarding the organic solvent, it may be selected from the group consisting of isopropanol, benzofuran, ethyl cellosolve, and butyl solution. One or more solvents of a granule, a phenyl cellosolve, a propylene glycol, and a diacetone alcohol. The organic solvent may be used singly or in combination with an aqueous solution. There are no particular limitations on the development conditions, and it is usually from 10 to 10 It is preferably carried out in a temperature range of 50 ° C from 15 to 45 ° C, preferably from 20 to 40 ° C. It can be developed by enamel coating, spray development, brush development and ultrasonic development. [3 - 3 - 5 ] Thermal curing treatment usually causes the color filter substrate to be thermally cured or photocured 38 326\patent specification (supplement)\94-02\93132145 1261689 to The heat curing treatment is preferred. The heat curing temperature is selected from the range of 100 to 28 ° C to 1 50. Preferably, the thermal curing time is selected from the range of 5 to 60 minutes. After a series of steps, the patterned image formation of one color is completed. Repeatedly repeating the steps (black) a pattern of red, green, and blue, thereby forming a color filter. The order of patterning red, green, and blue is not limited to the foregoing order. Another method of manufacturing the color filter of the present invention Examples include: (1) a method of applying the colored resin composition of the present invention to a substrate, and forming an image element by etching; (2) using the colored resin composition of the present invention as a colored ink and directly using the printing device a method of forming on a transparent substrate; (3) using the colored resin composition of the present invention as an electrodeposition liquid, immersing the substrate therein, and precipitating the colored film on the IT 0 electrode formed into a predetermined pattern; (4) adhering a film coated with the colored resin composition of the present invention to a transparent substrate, peeling the film, performing imagewise exposure, and developing to form an image element. And (5) a method of using the colored resin composition of the present invention as a colored ink and forming an image element by an ink jet printer. In order to manufacture a color filter, a method suitable for the composition of the colored resin composition of the color filter is employed. [3 - 4] The transparent electrode is formed by forming a transparent electrode such as IT 0 on the image, and after performing any further modification on the filter, the color filter of the present invention is used as a part of a color display or a liquid crystal display device. Or similar parts. In order to improve the surface smoothness and durability, if necessary, it may have a 326\patent specification (supplement)\94-02\93132145 39 1261689 polyamide or polyimide layer as a top coat on the image. The color filter does not necessarily have a transparent electrode, for example, when it is used in an in-plane switching mode (I S P mode). [4] Liquid crystal display device (panel) Next, a liquid crystal display device (panel) will be explained. The liquid crystal display device of the present invention is generally formed by coating an alignment layer on the color light-receiving sheet of the present invention, spraying the spacer on the alignment layer, and bonding the obtained color filter to the surface. A liquid crystal lattice is formed on the substrate. The liquid crystal material is injected into the liquid crystal lattice and wired to the electrode facing the substrate. As the alignment layer, a resin film such as polyimide is suitable. To form the alignment layer, a photogravure printing and/or offset printing method is usually used, and the thickness of the alignment layer is usually adjusted to several tens of nanometers. After curing by baking, the alignment layer is exposed to UV rays or rubbed with a rubbing cloth to treat it into a surface state that can control the orientation of the liquid crystal material. The spacer has a size suitable for the gap with the facing substrate, and a spacer having a size of from 2 to 8 nm is generally preferred. Instead of the spacer, a photo spacer (P S ) made of a transparent resin film over a substrate of a color filter can be used. Regarding the substrate facing, an array substrate is usually used, and a T F T (thin film transistor) substrate is particularly preferable. The gap with the facing substrate varies depending on the purpose of use of the liquid crystal display device, but it is usually selected from the range of 2 to 8 μm. After the substrate of the color filter is bonded to the facing substrate, it is sealed with a sealant such as epoxy resin 40 326\patent specification (supplement)\94-02\93132145 1261689 except for the filling portion of the liquid crystal material. This sealant is cured by exposure to UVG rays and/or heat, thereby completing the seal around the liquid crystal lattice. After the liquid crystal cell sealed around it is cut into individual panels, the filling opening of the liquid crystal material is immersed in the liquid crystal material under reduced pressure in the vacuum chamber. The liquid crystal material is injected into the liquid crystal lattice via a leak in the vacuum chamber. Usually, the pressure in the liquid crystal lattice is reduced to 1 X 1 〇 _ 2 to 1 X 1 0 _ 7 P a to 1 X 1 (Γ 3 to 1 X 1 (Γ 6 P a is preferred. When decompressing, The liquid crystal lattice is preferably heated, and the heating temperature is usually from 30 to 100 ° C, preferably from 50 to 90 ° C. During the depressurization, the thermal temperature is maintained from 10 to 6 Within a range of 0 minutes, and then the filling port of the liquid crystal material is immersed in the liquid crystal material. After the liquid crystal material is injected into the liquid crystal lattice, the filling port is sealed by curing the UV curing resin, thereby completing the liquid crystal display device ( Manufacturing of the panel. There is no particular limitation on the kind of the liquid crystal material, and a conventional material such as an aromatic compound, an aliphatic compound or a polycyclic compound may be used. The liquid crystal may be a lyotropic ion or a thermotropic property. Any of the nematic, intercalated, and cholesteric liquid crystals is known, and any of them may be used. (Examples) Hereinafter, the present invention will be described in more detail by way of Examples and Comparative Examples. However, it should be understood that the present invention is not limited thereto. And it can be modified without departing from the scope of the invention. In the instructions, "parts" or "parts" in the composition means "parts by weight" or "parts by weight" ^ (Example 1) <Preparation of pigment dispersion> 41 326\Patent specification (supplement) \94-02\93132145 1261689 The pigment dispersion of the present invention is prepared according to the following formula. [Formulation of Pigment Dispersion] Crimson Pigment (P.R a 1 1 7 ) ("A Τ Y - TR", product of DIC ): 80 parts of Nickelazo yellow pigment (PY 150) ("E4GN", product of Bayer): 20 parts of amine dispersant ("Disperbyk", product of BYK-Chemie): 45 parts of solvent (propylene glycol single)曱 ether acetate): 580 parts After mixing the above materials, the obtained grinding substrate was dispersed using "T 0 RUS Μ ILL" (manufactured by Getzma η η) (which was passed through the beads in the container) Collision and dispersion.) The beads used for dispersion are oxygen-missing beads having an average particle size of 100 μm. Filled with 0.35% by volume of beads in a 0.33 liter container of the disperser and Add 1000 cubic centimeters of ground matrix at a peripheral speed of 12 m/min and dispersion Dispersion treatment was carried out in 4 minutes. <Measurement of particle size distribution of pigment dispersion liquid> The pigment dispersion thus obtained was diluted to 5,000 times with propylene glycol monomethyl ether acetate, and a dynamic light scattering spectrophotometer was used. ("DLS 7 0 0 0", product of 0 tsuka E 1 ectr〇nics) The particle size was measured. The particle size range and the half width value are shown in Table 1. <Preparation of Colored Resin Composition (Color Resistance Agent) The components were mixed in the obtained pigment dispersion liquid according to the following formulation. The resulting mixture was filtered through a 1 micron filter, thereby forming a color filter. [Color resist agent formulation] Pigment dispersion: 1 0. 6 parts 42 326V patent specification (supplement) \94-02\93132 ] 45 1261689 Solvent (propylene glycol monoterpene ether acetate): 8 Ο , 0 parts bonding Resin (benzyl methacrylate/mercaptoacrylic acid copolymer): 4. 7 parts of monomer (trihydroxydecylpropane triacrylate) · · 2.3 parts of photopolymerization initiator system component 1 ( 2 -fluorenyl Benzothiazole): 0.8 parts of photopolymerization initiator system component 2 (methyl p-carbamic acid benzoate): 0.8 parts of photopolymerization initiator system component 3 (michonone): 0.8 Parts <Formation of Red Image Element> The obtained color resist was spin-coated on a glass substrate to obtain a dry film thickness of 2 μm, followed by drying at 80 ° C for 10 minutes. After exposure to U V rays to cure the resin, the substrate was heated at 230 ° C for 30 minutes for crosslinking, thereby forming a red image element. <Measurement of Chroma and Contrast> The glass substrate having the red image element obtained above was exposed to the illuminator C, and the chromaticity of the transmitted light was measured using a spectrophotometer ("U4100", product of Hitachi, Ltd.). . Then, the substrate is tightly sandwiched between the two polarizing plates, and the light intensity when the polarizing plates are arranged in parallel is measured by a luminance photometer ("B Μ - 5 A", a product of T 〇pc ο η). (Candle/cm ^ 2 ) The ratio of the light intensity 烛 (candle / square centimeter) when the polarizing plate is set at a right angle is calculated using the following equation (1 ). The results are shown in Table 1. C=B/A (1) Calculate "4 Ο Ο Ο X - 2 0 0 0" using the chromaticity X obtained by the above measurement, 43 326\patent specification (supplement)\94-02\93132145 1261689 and evaluation Whether the result satisfies the following equation (2). These results are also shown in Table C ^ 40 OOx - 2 0 0 0 (Example 2)

In a similar manner to Example 1, except that "C hr〇m〇phtha 1 〇 Red A 3 B" (product of C iba S pecia 1 ty C hemica 1 s) was used as the 蒽S Kun red pigment (P · R 1 1 7 ) and "E 5 GN" (product of Bayer) as a nickel azo yellow pigment (P. Y 1 5 0 ), a pigment dispersion liquid and a coloring resin composition were prepared and evaluated. The results are shown in Table 1. (Example 3) In a manner similar to Example 1, except that the particle size of the beads used for the preparation of the pigment dispersion was changed to 500 μm, a pigment dispersion and a colored resin composition were prepared and evaluated. The results are shown in Table 1.

326\Patent Specification (Repair)\94-02\93132145 44 1261689 Equation (2) Satisfaction Satisfaction Satisfaction Not satisfied 4000χ- 2000 1 r—Η OD CJD y &lt; CD 1 τ—1 CD οα τ—Η CD Contrast ◦ 1400 1200 s OO ◦ Red image element N inch cd r-i I 16.4 CD CN1 (N1 0.315 i_ 0.315 0.315 0. 344 X 0. 654 0. 654 0.654 0. 653 Pigment half-width value in pigment dispersion § CD l 11 H 1 1,1 H g &lt;N1 § (N1 particle size (nm) &lt; OO οα CO Od OO OO CO CO CD CD CO Od CO ί The average particle size (//m) g r_H gr—H g LO gr—H Yellow pigment PY 150 “E4GN” ◦ LO Γ rH o .LO cu PY 150 “E4GN” PY 150 “E4GN” Red pigment PR 177 “ATY-TR” PR 177 “Chromo-p hthalored A3B” PR 177 “ ATY-TR” PR 254 Έ-ΟΓ r—1 OO CO than car case 1 heart ι Να e6\s-inch 6\(φ}®)_κΜ1Ην»\9Νε 1261689 From Table 1, it was found that P. R. 1 7 7 and P. Υ, a pigment liquid prepared by mixing and having a particle size falling within the scope of the present invention can be formed to satisfy the aforementioned equation (2) High contrast red image element 1 Although the present invention has been described in detail with reference to the specific embodiments thereof, it will be understood by those skilled in the 2 0 0 3 1 1 2 2 2 曰 曰 曰 I 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 2003 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 -01 。 。 (Industrial Applicability) The present invention has an excellent advantage as described below, so that it has potential in the industry. 1. The pigment dispersion of the present invention and the colored resin composition of the present invention comprising the pigment dispersion can have excellent depolarization properties and Therefore, the red image element is compared. 2. The preparation method of the pigment dispersion according to the present invention is advantageous for the preparation of the dispersion. 3. The color filter of the present invention and the color filter provided thereon In the liquid crystal display device of the Ming Dynasty, the red image element has excellent depolarization, and thus has high contrast, so that its quality is excellent, and the brightness and viewing angle can be effectively met to meet the needs of a larger screen size. . 326\Patent specification (supplement)\94-02\93132145 46 15 0 Disperse cattle. However, if you are familiar with it, please refer to the extremely high level of the hair.

Claims (1)

1261689 X. Patent Application Range: 1. A pigment dispersion comprising a pigment, a solvent and a dispersant, wherein: when a red image element is formed on a glass substrate by using a colored resin composition containing the pigment dispersion, C is calculated according to the following equation (1): C 2 B/A (1) where A and B respectively represent when the glass substrate is sandwiched between two polarizing plates and the two polarizing plates are disposed at right angles and when the two polarizing plates are parallel The intensity of the light measured by the luminance photometer, and the contrast C thereof and the chromaticity X of the transmitted light measured by the spectrophotometer satisfy the following equation (2): C ^ 4 0 0 0 x - 2 0 0 0 ( 2 ) ° 2 . A pigment dispersion comprising a pigment, a solvent and a dispersant, wherein: the pigment comprises a crimson pigment and an azo yellow pigment, and has a Particle size in the range of 0 to 500 nm. 3. A pigment dispersion according to claim 2, wherein the pigment has a half-width value of a particle size distribution of 250 nm or less. 4. The pigment dispersion according to claim 2, wherein the anthraquinone pigment is C. I. Pigment Red 177, and the azo yellow pigment is C. I Pigment Yellow 1 500. 5. The pigment dispersion according to claim 2 or 3, wherein: when a red image element is formed on a glass substrate by using a colored resin composition containing the pigment dispersion, Comparative C is based on the following equation (1) Calculated: 47 326\patent specification (supplement)\94-02\93132145 1261689 C2B/A (1) where A and B respectively represent when the glass substrate is lost between the two polarizers and the two polarizers The right angle setting and the light intensity measured by the luminance photometer when the two polarizing plates are arranged in parallel, and the contrast C thereof and when exposed to the illuminator C, the chromaticity X of the transmitted light measured by the spectrophotometer satisfies the following Equation (2): C ^ 4 0 0 0 x - 2 0 0 0 ( 2 ) ° 6 . - A method for producing a pigment dispersion according to claim 2 or 3, which comprises using a self-contained 30 to 50 The 0 micron average particle size beads disperse the mixture of pigment, solvent and dispersant. 7. A coloring resin composition comprising the pigment dispersion according to any one of claims 1 to 3. 8. The colored resin composition of claim 7, further comprising a binder resin, a monomer, and a photopolymerization initiator system. 9. A colored resin composition comprising a pigment, a solvent, a dispersant, a binder resin, a monomer, and a photopolymerization initiator system, wherein: a red color is formed on a glass substrate by using a colored resin composition containing a pigment dispersion For image components, the comparison C is calculated according to the following equation (1): OB/A ( 1 ) where A and B respectively represent when the glass substrate is sandwiched between the two polarizing plates and the two polarizing plates are disposed at right angles and when When the two polarizers are placed in parallel, the intensity of the light measured by the luminance photometer, and the contrast C thereof and when exposed to the illuminator C, using the spectrophotometer 48 326\patent specification (supplement)\94-02\93132] 45 1261689 The measured chromaticity x of the transmitted light satisfies the following equation (2): C ^ 40 OOx - 2 0 0 0 ( 2 ) ° 1 0 . - a color filter, including the use of the scope of claim 7 An image element formed by coloring a resin composition. A liquid crystal display device comprising the color filter of claim 10 of the patent application. 326\Patent specification (supplement)\94-02\93132145 49