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:
Sep. 07, 2010
Filed:
Sep. 02, 2008
Toshiaki Shibue, Tokyo, JP;
Makoto Honda, Tokyo, JP;
Nobuo Kubo, Tokyo, JP;
Noriyasu Kuzuhara, Tokyo, JP;
Hiroki Umeda, Tokyo, JP;
Sota Kawakami, Tokyo, JP;
Takatoshi Yajima, Tokyo, JP;
Toshiaki Shibue, Tokyo, JP;
Makoto Honda, Tokyo, JP;
Nobuo Kubo, Tokyo, JP;
Noriyasu Kuzuhara, Tokyo, JP;
Hiroki Umeda, Tokyo, JP;
Sota Kawakami, Tokyo, JP;
Takatoshi Yajima, Tokyo, JP;
Konica Corporation, Tokyo, JP;
Abstract
Disclosed is an optically anisotropic film used for a liquid crystal display of a vertical alignment liquid crystal mode comprising a fatty acid cellulose aster film, a retardation value (Rt value) in the thickness direction of the fatty acid cellulose ester film is from 60 to 300 nm, and the number of luminescent points having a size exceeding 50 μm is zero per 250 mm, and the number of luminescent points having a size of 5 to 50 μm is 200 or less per 250 mmwhen the fatty acid cellulose ester film is observed with two polarizing plates being provided on both surfaces of the fatty acid cellulose ester film so as to shield transmission light.