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:
Aug. 28, 1990
Filed:
Dec. 02, 1988
Applicant:
Inventors:
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350335 ; 3503 / ; 3503 / ;
Abstract
There is provided a liquid crystal display device which includes: a double-layered-type liquid crystal cell. The cell is composed of a first cell layer and a second cell layer. The liquid crystal cell contains liquid crystal molecules with a twisted nematic orientation therein. Further, a voltage applying device is in the first cell layer. The dependency of the birefringence on the wavelength of light of the first cell layer is larger than that of the second cell layer. Accordingly, the liquid crystal display device produces a distinct and clear color image, and is useful for full-color display and multicolor display.