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. 20, 1996
Filed:
Dec. 17, 1993
Akihiko Kanemoto, Yokohama, JP;
Yasuyuki Takiguchi, Kawasaki, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A color liquid crystal device comprises: a pair of transparent substrates opposing to each other and having electrodes respectively, a plurality of color filters disposed on an inner surface of one of the substrates, a liquid crystal layer disposed between the substrates, a pair of electrodes disposed on the substrates respectively for applying an electric field to the liquid crystal layer thereby to vary a state of molecular orientation of said liquid crystal layer to perform a light modulation. A thickness of the liquid crystal layer is decreased or increased at an overlapping portion of the color filters than the rest portion of said color filters.