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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10689517 B1

PDFFull Text
Date of Patent:
Jun. 23, 2020

Filed:

Apr. 20, 2016

Color material dispersion liquid, color resin composition, color material, color filter, method for producing color filter, liquid crystal display device, and light-emitting display device

Applicant:

Dai Nippon Printing Co., Ltd., Tokyo-to, JP;

Inventors:

Michihiro Ogura, Tokyo-to, JP;

Tomoki Murata, Tokyo-to, JP;

Fumiyasu Murakami, Tokyo-to, JP;

Daisuke Endo, Tokyo-to, JP;

Yohei Ito, Tokyo-to, JP;

Assignee:

DAI NIPPON PRINTING CO., LTD., Tokyo, JP;

Attorney:

Hamre, Schumann, Mueller & Larson, P.C.

Primary Examiner:

Eli D Strah

Int. Cl.
CPC ...
C09B 63/00 (2006.01); G02B 5/20 (2006.01); H05B 33/12 (2006.01); G02F 1/1335 (2006.01); H01L 51/50 (2006.01); C09B 67/46 (2006.01); G02F 1/13357 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
C09B 63/005 (2013.01); C09B 63/00 (2013.01); C09B 67/0084 (2013.01); G02B 5/20 (2013.01); G02F 1/133514 (2013.01); G02F 1/133516 (2013.01); G02F 1/133603 (2013.01); H01L 51/50 (2013.01); H05B 33/12 (2013.01); B32B 2457/202 (2013.01); B32B 2457/206 (2013.01); G02F 2001/133562 (2013.01); G02F 2001/133624 (2013.01); H01L 27/322 (2013.01); Y10T 428/1036 (2015.01); Y10T 428/1041 (2015.01);
Abstract

A color material dispersion liquid comprising: (A) a color material, (B) a dispersant and (C) a solvent, wherein the color material (A) contains a lake color material of a combination of an acid dye and a polyaluminum chloride; a basicity of the polyaluminum chloride is 70% or more; and a value of a ratio (I/I) between an integral value (I) of a peak corresponding to a four-coordinate aluminum in a solid-stateAl-NMR spectrum of the lake color material and an integral value (I) a peak corresponding to a six-coordinate aluminum therein, is from 0 to 0.50.

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