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:
Dec. 05, 1995
Filed:
Mar. 21, 1995
Kazuo Yoshinaga, Machida, JP;
Hajime Sakata, Atsugi, JP;
Yomishi Toshida, Yokohama, JP;
Toshikazu Ohnishi, Machida, JP;
Koichi Sato, Atsugi, JP;
Takeo Eguchi, Tokyo, JP;
Tsuyoshi Shibata, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A display device is constituted by disposing a first display layer and a second display layer between a pair of electrode plates including at least one transparent electrode plate. The first display layer contains a low-molecular weight mesomorphic compound dispersed in or impregnating a polymer matrix. The second display layer is formed by disposing a diffraction grating and being filled with the low-molecular weight mesomorphic compound. The display device is incorporated in a display apparatus to effect a good display with a high contrast ratio.