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:
May. 15, 1984
Filed:
May. 17, 1982
Yukihiro Sato, Mobara, JP;
Yoshimichi Shibuya, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A liquid crystal display device assembly is of a two-layer construction including a first TN liquid crystal display device of a dot-matrix electrode pattern and a second TN liquid crystal display device of a segment electrode pattern disposed on the first display device in laminated relation. The product of refractivity anisotropy and thickness of the liquid crystal layer of the first liquid crystal display device is smaller than 0.6 .mu.m, and that of the second liquid crystal display device is 0.6 .mu.m or more.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile