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:
Mar. 03, 1992
Filed:
Jul. 17, 1990
Applicant:
Inventors:
Assignee:
Seikosha Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
359104 ; 359 75 ; 359 78 ;
Abstract
A ferro-electric liquid-crystal panel comprises two substrates with electrodes and alignment layers which face one another, and a ferro-electric liquid-crystal sealed therebetween to align the molecules thereof in a homogeneous fashion. The alignment direction of one of the alignment layers is twisted at an angle between 110 and 150 degrees relative to that of the other alignment layer. The direction of twist defined by the alignment layer, as viewed in front, is opposite to the twist direction of the liquid-crystal molecules in chiral-nematic mesophase.