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:
Oct. 31, 1989
Filed:
Dec. 08, 1987
Toshiaki Takamatsu, Yamatokoriyama, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A color liquid crystal display device is composed of first and second liquid crystal display cells aligned over each other, in which each cell includes a pair of color polarizers having respective polarization axes which are oriented at right angles to each other. The color polarizers of each cell contain at least one color which is the complement of the color contained in the other color polarizer. In this way, display contrast and brightness can be enhanced by allowing a higher ratio of picture elements to be utilized for monochromatic displays.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile