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:
May. 09, 2000
Filed:
Jun. 08, 1998
Applicant:
Inventor:
Lawrence Kam Chan, Northolt, GB;
Assignee:
Central Research Laboratories Limited, Middlesex, GB;
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ;
U.S. Cl.
CPC ...
25229961 ; 35229966 ;
Abstract
A liquid crystal composition having a high order, tilted ferro-electric achiral Smectic I phase exhibiting a relaxed cone angle of greater than 20.degree. in the absence of high surface tilt alignment layers at temperatures in the range of 5.degree. C. to 40.degree. C. and includes from 90% to 99.9% by weight of a mixture of at least two achiral host compounds and from 0.1% to 10% by weight of a chiral dopant compound.