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:
Apr. 30, 2002
Filed:
Jul. 13, 2000
Shigeki Yokoyama, Kanagawa, JP;
Ken Kawata, Kanagawa, JP;
Hideyuki Nishikawa, Kanagawa, JP;
Koshin Matsuoka, Kanagawa, JP;
Eiichiro Aminaka, Kanagawa, JP;
Yoji Ito, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;
Abstract
An optical compensatory sheet comprises an optically anisotropic layer formed of discotic liquid crystal molecules provided on a transparent substrate. The liquid crystal molecules are horizontally aligned in the optically anisotropic layer. An average inclined angle between discotic planes of the discotic liquid crystal molecules and a surface of the transparent substrate is less than 5°. The discotic liquid crystal molecules are fixed in the optically anisotropic layer while keeping the horizontal alignment.