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Coloring combination, color filter and color liquid crystal display element

A coloring composition and coloring agent technology, applied in the direction of instruments, optical filters, optics, etc., can solve the problems of difficulty in achieving high contrast, poor storage stability of coloring compositions, and inability to obtain sufficient contrast ratio, etc., to achieve high preservation The effect of stability

Active Publication Date: 2010-06-09
JSR CORPORATIOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even with the above-mentioned dispersants, it is difficult to achieve the high contrast demand in recent years
That is, if it is desired to stably disperse the micronized pigment, it is necessary to use a large amount of dispersant, and as a result, it is difficult to develop with an alkaline developer. Conversely, if the amount of dispersant is reduced, there is a possibility that a sufficient contrast ratio or coloring composition cannot be obtained. The problem of poor storage stability

Method used

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  • Coloring combination, color filter and color liquid crystal display element
  • Coloring combination, color filter and color liquid crystal display element
  • Coloring combination, color filter and color liquid crystal display element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0237] Below, an Example is given and the embodiment of this invention is demonstrated more concretely. However, the present invention is not limited by the following examples.

[0238] Analysis of Dispersants

[0239] Dispersant B1

[0240] Dispersant B1 is a commercially available pigment wetting and dispersing agent, and is a solution of propylene glycol methyl ether acetate / butyl cellosolve=1 / 1 (mass ratio) of a modified acrylic block copolymer (solid content concentration: 40 mass % , acid value = 0). Through thermal decomposition GC-MS, FT-IR measurement, and proton NMR, it was confirmed that dispersant B 1 was composed of The A block of the repeating unit, and the methacrylic acid with A block copolymer of B blocks of repeating units of esters (A / B=38 / 62). Mw=2700. The copolymerization ratio of each repeating unit is methacryloxyethylbenzyldimethylammonium chloride / dimethylaminoethyl methacrylate / methyl methacrylate / butyl methacrylate / methacrylic acid 2 -Ethylh...

preparation example 1

[0254] 15 parts by mass of C.I. Pigment Red 254 (manufactured by Chiba Special Chemicals Co., Ltd., trade name BK-CF) as (A) colorant, and 3 parts by mass (in terms of solid content) of a specific dispersant as (B) dispersant That is, dispersant B1, propylene glycol monomethyl ether acetate / propylene glycol monoethyl ether=90 / 10 (mass ratio) mixed solvent as a solvent, wherein the mixed solvent is used in an amount so that the solid content concentration is 20% by mass, The colorant dispersion liquid (M-1) was prepared by mixing and dispersing with a bead mill for 12 hours.

preparation example 2～13

[0256] Colorant dispersion liquids (M-2) to (M-15) were prepared in the same manner as in Preparation Example 1 except that the colorant and dispersant were changed as shown in Table 1 in Preparation Example 1.

[0257]

[0258] In Table 1, "R254" refers to C.I. Pigment Red 254, "R177" refers to C.I. Pigment Red 177, "Y150" refers to C.I. Pigment Yellow 150, "Y139" refers to C.I. Pigment Yellow 139, "G36 ” refers to C.I. Pigment Green 36, “B15:6” refers to C.I. Pigment Blue 15:6, and “V23” refers to C.I. Pigment Violet 23.

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PUM

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Abstract

The invention relates to a coloring combination, color filter and color liquid crystal display element. The coloring combination is capable of forming pixels having relative high contrast with excellent storage stability. The coloring combination comprises (A) colorant, (B) dispersant, (C) resin for adhesive and (D) polyfunctionality monomer, characterized in that: the (B) dispersant comprises block copolymer comprising A block with quaternary ammonium salt and amino group at the side chain and B block without quaternary ammonium salt amino group at the side chain.

Description

technical field [0001] The present invention relates to a coloring composition, a color filter (カラ-filter) and a color liquid crystal display element, more specifically, to a color liquid crystal display device, a color pickup tube element, and an organic EL display element used in a transmissive or reflective type Coloring composition used for forming a coloring layer useful for color filters in electronic paper, etc., color filter having a coloring layer formed using the coloring composition, and color liquid crystal display element having the color filter . Background technique [0002] As a method of forming a color filter using a colored radiation-sensitive composition, it is known to form a coating film of a colored radiation-sensitive composition on a substrate or a substrate on which a light-shielding layer of a desired pattern is formed in advance, by having a prescribed A method in which a patterned photomask is irradiated with radiation (hereinafter referred to a...

Claims

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Application Information

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IPC IPC(8): G03F7/004G02B5/20G02F1/1335
Inventor 龙恭一郎柳孝典神井英行高见朋宏沼田淳
Owner JSR CORPORATIOON
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