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:
Oct. 04, 1988
Filed:
Jun. 30, 1986
Applicant:
Inventors:
George P Montgomery, Jr, Troy, MI (US);
Nuno A Vaz, West Bloomfield, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 350351 ;
Abstract
A method of creating memory effect in an optically responsive film containing smectic liquid crystal microdroplets dispersed in a polymeric film by first heating it to a higher temperature such that the structure of the liquid crystal is transformed into an isotropic phase, and then cooling the liquid crystal from that higher temperature in an electric field of sufficient intensity such that the liquid crystal microdroplets remain in an aligned state of the smectic phase for a sufficiently long period of time.