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:
Sep. 19, 1989
Filed:
Nov. 23, 1988
Applicant:
Inventors:
John W Goodby, Berkeley Heights, NJ (US);
Jayantilal S Patel, Scotch Plains, NJ (US);
Assignees:
American Telephone and Telegraph Company, Murray Hill, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; C09K / ;
U.S. Cl.
CPC ...
3503 / ; 25229967 ; 350346 ;
Abstract
Excellent ordering in ferroelectric liquid crystal devices is obtained by utilizing a material having a smectic C phase and no higher temperature orthogonal smetic phases. Ordering is accomplished by the combination of (1) contacting the liquid crystal material in the smectic C phase with an ordering substance and (2) subjecting the liquid crystal material to a slowly varying electric field.