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Coloring composition, color filter and color liquid crystal display device

A technology of coloring composition and colorant, which is applied in the direction of optical components, instruments, optical filters, etc., can solve the problems of easy generation of foreign matter in green pixels and decline in the yield of color filter products, and achieve excellent surface roughness and high product quality. Yield effect

Active Publication Date: 2014-04-30
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a green pixel formed using a pigment composition containing this pigment tends to generate foreign matter, which becomes an important factor in reducing the product yield of the color filter.

Method used

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  • Coloring composition, color filter and color liquid crystal display device
  • Coloring composition, color filter and color liquid crystal display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0108] Hereinafter, an Example is given and the embodiment of this invention is demonstrated more concretely. However, the present invention is not limited to the following examples.

[0109] Preparation of Pigment Dispersion

preparation example 1

[0111] Disperbyk-2001 (manufactured by BYKCHEMIE Corporation, A mixture of 24 parts by mass of solid content concentration (45.0% by mass) and 136 parts by mass of propylene glycol monomethyl ether acetate as a solvent (D) was mixed with a bead mill for 12 hours and dispersed to prepare a pigment dispersion (A-1) .

preparation example 2

[0113] 40 parts by mass of a 60 / 40 (mass ratio) mixture of bromochlorinated zinc phthalocyanine (manufactured by DIC Corporation) as a colorant (A) and C.I. A mixture of 27 parts by mass of solid content concentration (40.0% by mass) and 133 parts by mass of propylene glycol monomethyl ether acetate as a solvent (D) was mixed with a bead mill for 12 hours and dispersed to prepare a pigment dispersion (A-2) .

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PUM

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Abstract

The invention relates to a coloring composition, color filter and color liquid crystal display device. The invention provides the coloring composition, which is suitable for the mass production of the color filter and contains a halogenated phthalocyanine zinc pigment. The coloring composition contains a colouring agent (A), a binder resin (B), a multifunctional monomer (C) and a solvent (D), characterized in that the colouring agent (A) contains halogenated phthalocyanine zinc, the solvent (D) contains at least one of propylene glycol methyl ether acetate, ethyl 3-ethoxypropionate and 3-Methoxybutyl acetate (d1) and a solvent with the solubility higher than that of the ethyl 3-ethoxypropionate (d2), and the solubility of the (d2) is higher than that of 5 to 60% by weight of the ethyl 3-ethoxypropionate in the total solvent.

Description

technical field [0001] The present invention relates to a coloring composition, a color filter, and a color liquid crystal display element. A coloring composition having a colored pattern useful for a color filter used in a color filter, a color filter including a green pixel formed using the coloring composition, and a color liquid crystal display element including the color filter. Background technique [0002] Color liquid crystal display devices such as televisions and monitors require higher luminance and an expanded color reproduction range. Therefore, in recent years, color filters constituting color liquid crystal display devices have been increasingly required to have high light transmittance and high color purity. [0003] For green pixels, pigment compositions containing polyhalogenated zinc phthalocyanine pigments are known and attract attention as materials capable of providing color filters with high luminance and a wide color reproduction range (Patent Documen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/032G03F7/004G02B5/20G02F1/1335
CPCC08L101/00C09B47/10G02B5/20G02B5/201G03F7/004G03F7/0045
Inventor 服部清太郎蓑轮贵树大喜多健三高桥裕谷本加奈子米沢文子
Owner JSR CORPORATIOON
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