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:
Apr. 04, 1995
Filed:
Apr. 28, 1993
Applicant:
Inventors:
Hirofumi Katsuse, Tenri-shi, Nara-Ken, JP;
Takaji Numao, Nara-shi, Nara-ken, JP;
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G02F / ;
U.S. Cl.
CPC ...
359 56 ; 359100 ; 345 97 ;
Abstract
A ferroelectric liquid crystal display for improving switching time and contrast comprising a ferroelectric liquid crystal having a C2U orientation, a negative dielectric anisotropy and driven by a rewriting voltage for turning a pixel on and off which is smaller than the non-rewriting voltage.