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:
Feb. 05, 2013
Filed:
Mar. 30, 2011
Koichi Minato, Tokyo, JP;
Mie Shimizu, Tokyo, JP;
Toshihisa Watanabe, Osaka, JP;
Koki Tsubaki, Kashiwara, JP;
Koichi Minato, Tokyo, JP;
Mie Shimizu, Tokyo, JP;
Toshihisa Watanabe, Osaka, JP;
Koki Tsubaki, Kashiwara, JP;
Toppan Printing Co., Ltd., Tokyo, JP;
Abstract
Disclosed a color filter for a liquid crystal display device, which exhibits a color filter contrast of 9000 or more and includes a transparent substrate, and a plurality of color layers exhibiting different color from each other and formed on the transparent substrate, wherein each of the color layers is a cured film of a color resin composition containing a polymer composition obtained through a copolymerization of styrene and an unsaturated carboxylic acid-containing monomer, a content of the styrene in the polymer composition being confined to a range of not less than 75 mol. % and less than 95 mol. %, and a retardation in a thickness direction 'Rth' of each of these color layers is confined within a range of 0 nm to −10 nm.