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.:
Date of Patent:
Aug. 28, 2001
Filed:
Aug. 24, 2000
Masashi Sawamura, Tokyo, JP;
Kenichi Fujita, Tokyo, JP;
Takeo Sugiura, Tokyo, JP;
Takao Taguchi, Tokyo, JP;
Eriko Nagata, Tokyo, JP;
Toyo Ink Mfg. Co., Ltd., Tokyo, JP;
Abstract
A color filter includes at least one blue filter segment, at least one red filter segment, and at least one green filter segment, and has a thickness of from 1 to 2.5 &mgr;m. The blue filter segment is prepared from a blue-colored composition containing a colorant carrier selected from the group consisting of a transparent resin, a precursor of a transparent resin and a mixture thereof, and a blue colorant dispersed in the carrier. The blue colorant consists of a copper phthalocyanine pigment and a dioxazine violet pigment. The content of the dioxazine violet pigment is 0.5% to 7% by weight based on the total weight of the blue colorant. There is also disclosed a color liquid crystal display device having the color filter, and a backlight unit provided with a three-band fluorescent lamp as a light source and exhibiting a specific light intensity distribution.