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 r

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

Example Embodiment

[0236] [Example]

[0237] Examples are given below to more specifically describe the embodiments of the present invention. However, the present invention is not limited by the following examples.

[0238] Dispersant analysis

[0239] Dispersant B1

[0240] Dispersant B1 is a commercially available product of pigment wetting and dispersing agent. It is a modified acrylic block copolymer of propylene glycol methyl ether acetate / butyl cellosolve = 1 / 1 (mass ratio) solution (solid content concentration 40% by mass) , Acid value = 0). Through thermal decomposition GC-MS, FT-IR measurement, and proton NMR, it was confirmed that the dispersant B 1 contained the methacryloxy ethyl benzyl dimethyl ammonium chloride and dimethyl amino ethyl methacrylate The A block of the repeating unit, and has methacrylic acid from methyl methacrylate, butyl methacrylate, 2-ethylhexyl methacrylate, benzyl methacrylate and triethylene glycol ethyl ether A block copolymer of the B block of the ester repeat...

Example Embodiment

[0253] Preparation Example 1

[0254] (A) 15 parts by mass of CI Pigment Red 254 (manufactured by チバスペシャリティケミカルズ, trade name BK-CF) as the colorant (A), and 3 parts by mass (calculated as solid content) as the specific dispersant of the dispersant (B) That is, dispersant B1, propylene glycol monomethyl ether acetate / propylene glycol monoethyl ether = 90 / 10 (mass ratio) mixed solvent as a solvent, and the mixed solvent is used in an amount such that the solid content concentration is 20% by mass, The mixture was mixed and dispersed in a bead mill for 12 hours to prepare a colorant dispersion liquid (M-1).

Example

[0255] Preparation examples 2-13

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

[0257]

[0258] In Table 1, "R254" refers to CI Pigment Red 254, "R177" refers to CI Pigment Red 177, "Y150" refers to CI Pigment Yellow 150, "Y139" refers to CI Pigment Yellow 139, "G36" "Refers to CI Pigment Green 36, "B15:6" refers to CI Pigment Blue 15:6, and "V23" refers to CI 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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