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:
Aug. 28, 1979
Filed:
Apr. 04, 1977
Applicant:
Inventor:
Joseph H Morrissy, Thaxted, GB;
Assignee:
International Standard Electric Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
350341 ; 350340 ;
Abstract
A nematic liquid crystal cell operating in a field effect scattering mode employs a surfactant to provide homogeneous random alignment of the nematic director. Field effect scattering mode operation improves over dynamic scattering mode operation by using an electric field to switch between homeotropic and homogeneous random alignment.