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:
Sep. 13, 1983
Filed:
Oct. 23, 1980
Masashi Tanaka, Koganei, JP;
Yutaka Nakajima, Mitaka, JP;
Takahiko Ihochi, Koganei, JP;
Yoshimichi Shibuya, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display device having a structural arrangement that a plurality of liquid crystal layers each for displaying a pattern are piled up and a pair of polarizers are provided above an uppermost liquid crystal layer and below a lowermost liquid crystal layer, is disclosed in which a polarizer is interposed between adjacent liquid crystal layers in such a manner that adjacent ones of the polarizers are different in direction of transmission axis from each other, in order to eliminate a white on black portion caused by an overlap of the patterns and to thereby reduce the area of a display region; or in which a white on black portion caused by an overlap of the patterns is used as a display portion to form a display pattern having a predetermined shape and to open up new possibilities for color display.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile