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. 03, 1993
Filed:
Nov. 24, 1989
Toyoaki Sawada, Saitama, JP;
Hisao Hoshi, Saitama, JP;
Hiroki Endo, Saitama, JP;
Mizuhiro Tani, Saitama, JP;
Makoto Sakagawa, Saitama, JP;
Takeo Sugiura, Saitama, JP;
Masaji Yonezawa, Saitama, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
A color filter for use in a liquid-crystal display panel structure, including a transparent substrate having a surface portion, and a multiplicity of filter elements distributed in a predetermined pattern on the surface portion of the substrate, each of the filter elements being formed of a photosetting colored filter composition containing an acrylic resin, a coloring compound and a dispersant. In this color filter according to the present invention, the dispersant preferably includes a derivative of an organic colorant. A color filter according to the present invention may further include a transparent overcoat of a synthetic resin covering the filter elements.