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. 26, 1980
Filed:
Feb. 22, 1978
Isamu Washizuka, Kyoto, JP;
Satoshi Teramura, Kashihara, JP;
Shinji Tsugei, Yamatokoriyama, JP;
Kazuyoshi Hirayama, Kashihara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A liquid crystal display cell of the reflection type comprises a substrate on which reflection electrodes are formed, a transparent substrate on which transparent electrodes are formed and a liquid crystal composition filled between said two substrates. Activating voltage signals are applied between said two electrodes, thereby to drive the liquid crystal display cell to display desired symbols. A reflection film is formed on at least one of said two substrates in such a manner that the reflection film is electrically isolated from said reflection electrodes and the reflection film covers a position where the symbols are never displayed, or the reflection electrodes are not formed. The visibility of the information displayed on the liquid crystal cell can be enhanced because the reflection electrodes and the reflection film, in combination, cover the display panel uniformly.