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Colored resin composition

A resin composition, color filter technology, applied in cameras, instruments, electrical components, etc., can solve the problems of inability to form blue pixels, not yet practical, and achieve excellent heat resistance and contrast, high reliability, and high reliability. high quality effects

Inactive Publication Date: 2013-02-06
NIPPON KAYAKU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, sharp blue pixels cannot be formed
That is, in the fields of liquid crystal display devices and solid-state imaging devices, color filters with clear blue pixels and high reliability and high durability are required, but practically they have not yet been put into practical use.

Method used

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  • Colored resin composition
  • Colored resin composition
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Examples

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Effect test

Embodiment

[0144] Hereinafter, although an Example demonstrates this invention more concretely, this invention is not limited to these Examples. It should be noted that, in the following examples, unless otherwise specified, parts represent parts by mass, and % represents mass %. In addition, the maximum absorption wavelength was measured using the ultraviolet spectrophotometer UV-2450 (made by Shimadzu Corporation).

Synthetic example 1

[0145] Synthesis example 1 (synthesis of a pigment mainly composed of compound No.1-1: dye of formula (1))

[0146] 5.8 parts of Acid Red 289 (manufactured by Tokyo Chemical Industry Co., Ltd.) and 82.5 parts of dry dimethyl sulfoxide were put into a 300 ml four-necked flask, and stirred at normal temperature. 1.7 parts of oily sodium hydride (manufactured by Wako Pure Chemical Industries, Ltd.) was added thereto, stirred at room temperature for 1.5 hours, then, the reaction solution was cooled in an ice bath, and 75 parts of methyl iodide (manufactured by Tokyo Chemical Industry Co., Ltd.) were added dropwise. ), stirred at room temperature for 20 hours. After pouring the obtained reaction liquid into the mixed aqueous solution of 750 parts of water and 50 parts of 35% hydrochloric acid, 35% hydrochloric acid was added so that pH may become 0.3. The volume after addition of hydrochloric acid was 1000 ml. 200 parts of sodium chloride was added thereto, and the precipitated c...

Synthetic example 2

[0149] Synthesis example 2 (synthesis of a pigment mainly composed of compound No.1-2: dye of formula (1))

[0150] 4.1 parts of a sulfolane compound of the following formula (100), 312 parts of methanol, and 10.7 parts of N-methylaniline were charged into a 500 ml four-necked flask, and refluxed for 30 hours. The reaction solution was filtered at 60°C to remove insoluble components, and then the solvent was removed under reduced pressure until the reaction solution reached about 70 ml, and poured into 200 parts of 6% hydrochloric acid. Then, 600 parts of water were added, and after stirring at room temperature for 30 minutes, the wet cake was filtered off. This wet cake was suspended in 100 parts of water, stirred at 60°C for 2 hours, filtered again, washed with hot water at 60°C, and dried to obtain 2.5 parts of the following compound No.1 - 2 is the pigment for color filters of the present invention whose main component is. The maximum absorption wavelength of this dye is...

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Abstract

The present invention provides a colored resin composition, and a color filter formed by the resin composition. A colored resin composition used for a color filter, contains at least an acid xanthene dye represented by the following formula (1) and a blue acid triarylmethane dye with classified as C. I. as pigments; and contains a binder resin, an organic solvent, a curing agent, and a radical polymerization photoinitiator. In formula (1), X1 and X2 each independently represents a hydrogen atom or a alkyl group of C1 to C30, R1-R21 each independently represents a hydrogen atom, an alkyl group of C1 to C30, an alkoxy group of C1 to C30, a C6-C30 aromatic hydrocarbon group, a C3 to C30 aromatic heterocyclic group, a halogen atom, a nitro group, a phenoxy group, a carboxyl group, a carboxylic ester group, carboxylate group, an alkoxycarbonyl group, a hydroxyl group, a sulfonic acid group, a sulfonic ester, a sulfonate group, a -SO2NHR22 group or a -SO2NR23R24 group; wherein at least one of R1-R21 represents any one of the sulfonic acid group, the sulfonic ester group, the sulfonate group, the -SO2NHR22 group or the -SO2NR23R24 group; and R22-R24 each independently represents a C1 to C30 alkyl group. The sulfonate group and the carboxylate group are salts formed with a monovalent cation, wherein the monovalent cation is any one of Na +, K +, or quaternary ammonium cation.

Description

technical field [0001] The present invention relates to a colored resin composition used when forming a blue pixel of a color filter, a color filter formed using the colored resin composition, a liquid crystal display device formed using the color filter, and an imaging element ( Electronic display devices such as CCD, CMOS) and organic EL displays. Background technique [0002] Liquid crystal display devices (LCD) represented by notebook computers, LCD TVs, mobile phones, etc., liquid crystal display devices such as organic EL displays, and imaging elements (CCD, CMOS) used as input devices such as digital cameras and color copiers. Use color filters. As methods for producing color filters used in these liquid crystal display devices and solid-state imaging devices, there are dyeing methods, plating methods, printing methods, pigment dispersion methods, and the like. In recent years, a pigment dispersion method using a patterning method has become mainstream. As a patter...

Claims

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Application Information

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IPC IPC(8): G03F7/032G03F7/033G02B5/22G02F1/1335G03B11/04H01L27/32
CPCC09B11/24G03F7/0007G03F7/027G03F7/105C09B69/10C09B11/00G02B5/20G02F1/13
Inventor 高桥正行小林聪仓田高明三藤彰洋
Owner NIPPON KAYAKU CO LTD
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