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:
Jul. 22, 1986
Filed:
Apr. 22, 1983
Applicant:
Inventor:
Hiroshi Shingu, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350349 ;
Abstract
A liquid crystal composition for use in negative display, transmission-type, liquid crystal display elements, said composition comprising a nematic liquid crystal having positive dielectric anisotropy and a positive dichroic dye. Liquid crystal display devices comprising liquid crystal display cells including nematic liquid crystals having positive dielectric anisotropy and positive dichroic dyes are disclosed.