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. 31, 1995
Filed:
Jun. 30, 1994
Applicant:
Inventors:
Wen-Liang Tsai, Tainan, TW;
Chein-Dhau Lee, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; C07C / ;
U.S. Cl.
CPC ...
25229965 ; 25229964 ; 25229966 ; 25229967 ; 560 59 ; 560 61 ; 560 76 ;
Abstract
Chiral liquid crystal compounds for use as dopants to be mixed with a liquid crystal host material, which may or may not be composed of chiral molecules, to form ferroelectric liquid crystal compositions. The chiral liquid crystal compounds are represented by the following formula: ##STR1## wherein: R.sub.1 is a C.sub.2 to C.sub.10 alkyl group, R.sub.2 is a C.sub.2 to C.sub.8 alkyl group;