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Lightproof composition and color filter

A composition and light-shielding technology, which is applied in the field of light-shielding composition and color filter, and can solve the problems that have not been disclosed

Active Publication Date: 2008-09-17
NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, even in any of the inventions described in Patent Documents 1 to 5, a benzimidazolone-dioxazine pigment is used as a light-shielding coloring material without any disclosure, and a benzimidazolone-dioxazine pigment is used as a black coloring material. The use of coloring materials for the bottom has not been disclosed

Method used

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  • Lightproof composition and color filter
  • Lightproof composition and color filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Manufacture of opacifying compositions

[0057] Take 60.0 parts of Pigment Blue 80 ("Hostaperm Blue R5RVP2548" manufactured by Clariant, coloring material), 20.0 parts of cationic polymer dispersant (manufactured by Ajinomoto Fine Technology, "Ajisper PB821"), and propylene glycol monomethyl ether ethyl 320.0 parts of acid ester (solvent) were blended, and dispersion processing was performed for 3 hours with a paint mixer to prepare a dispersion liquid. Here, as the medium of the paint mixer, 0.4mmΦ zirconia beads are used at a filling ratio of 20%. Next, 11.9 parts of propylene glycol monomethyl ether acetate solution ("V-259ME" manufactured by Nippon Steel Chemical Co., Ltd.) of 56.5% by weight of an alkali-developing photosensitive resin having a bisphenol fluorene type epoxy diacrylate structure, two 6.8 parts of pentaerythritol hexaacrylate (photosensitive resin), 1-(9-ethyl-6-(2-methylbenzoyl)-9H-carbazol-3-yl)ethanone-1-O-acetyl oxime (photopolymerization initi...

Embodiment 2～4

[0062] The coloring material used in Example 1 was changed as shown in Table 1, and the others were the same as in Example 1 to manufacture a light-shielding composition for color filters and a model color filter. Then, the obtained cured film was measured in the same manner as in Example 1 for optical density, image forming ability, and volume resistivity. As a result, high-quality model color filters excellent in light-shielding properties and insulating properties were obtained in all of them. The results are shown in Table 1. Also, for example, for the coloring material used in Example 2, "PB80 / PY139=70 / 30" shown in Table 1 means that the coloring material contains 70% by weight of PB80 and 30% by weight of PY139, Same for other meanings.

[0063] Table 1

[0064] in solids

coloring material

Amount (weight%)

Types and formulations of coloring materials

Amount

(% by weight in coloring material)

optical density

Spend

...

Embodiment 5

[0078] Take 35.0 parts of Pigment Blue 80 ("Hostaperm Blue R5RVP2548" manufactured by Clarionto, coloring material), 15.0 parts of Pigment Yellow 139 (manufactured by BASF, "Paliotol Yellow D 1819", coloring material), cationic polymer dispersant (manufactured by Ajinomoto Fine Technology Co., Ltd., "Ajisper-PB821") 16.7 parts and 266.7 parts of propylene glycol monomethyl ether acetate (solvent) were mixed, and the dispersion processing was carried out in the same manner as in Example 1 to prepare a dispersion liquid. Next, 22.4 parts of propylene glycol monomethyl ether acetate solution ("V-259ME" manufactured by Nippon Steel Chemical Co., Ltd.) of 56.5% by weight of an alkali-developing photosensitive resin having a bisphenol fluorene type epoxy diacrylate structure, two 12.6 parts of pentaerythritol hexaacrylate (photosensitive resin), 2.5 parts of bisphenol fluorene type epoxy resin ("ESF-300" manufactured by Nippon Steel Chemical Co., Ltd.), 1-(9-ethyl-6-(2-methyl benzoy...

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PUM

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Abstract

The aim of the invention is to supply a lightproof combination with high lightproof performance and excellent insulating ability and dispersible stability and a colour filter adopting the combination. The benzimidazolone dioxazine pigment expressed by general formula (1) is taken as the tinting material of the necessary components. In the solid content containing over 40wt% lightproof combination, the optical density of the solidified film, when the film thickness is over 2.0, (in the formula, R1 and R2 respectively and independently express a hydrogen atom or an alkyl with substituent, and X expresses a hydrogen atom or a halogen atom).

Description

technical field [0001] The present invention relates to a light-shielding composition and a color filter formed using it. Background technique [0002] Heretofore, color filters have been widely used for coloring liquid crystal displays and the like, and generally, pixels of three primary colors of red, green, and blue are used in a mosaic-like arrangement. Between these pixels, in order to improve the contrast of the display, a light-shielding area is usually provided. Since a black grid can be seen, it is called a black matrix. [0003] The manufacturing method of the black matrix is ​​roughly divided into (A) the method of forming a metal film such as chromium, nickel, aluminum, etc. by vapor deposition, and etching it; The light-shielding resin composition is produced by photolithography. The cost of the (A) method is relatively high, and since it is difficult to manufacture a large substrate, the transition to the (B) method has been progressing in recent years. The ...

Claims

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Application Information

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IPC IPC(8): G02B5/20C09B57/00
CPCC09B19/02C09B67/0034G02B5/20
Inventor 山田裕章
Owner NIPPON STEEL CHEMICALL &MATERIAL CO LTD
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