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:
Dec. 26, 1995
Filed:
Mar. 17, 1994
Masahiro Terada, Atsugi, JP;
Akio Yoshida, Chigasaki, JP;
Kenji Shinjo, Atsugi, JP;
Toshiharu Uchimi, Atsugi, JP;
Takeshi Togano, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A ferroelectric liquid crystal composition, comprising at least three mesomorphic compounds represented by the following formula (I): ##STR1## wherein C* denotes an asymmetric carbon atom; E denotes a mesomorphic compound residue including a divalent 6-membered ring-containing group capable of having a substituent; and A and B are mutually different groups respectively selected from the class of (a) methyl group, (b) linear or branched alkyl groups having 2-18 carbon atoms capable of having a substituent, (c) linear or branched alkyloxy groups having 1-18 carbon atoms, (d) linear or branched alkyloxyalkyl groups having 2-18 carbon atoms, (e) linear or branched alkyloxycarbonyl groups having 2-18 carbon atoms, (f) linear or branched alkyloxycarbonylmethyl groups having 3-18 carbon atoms; (g) chlorine or bromine, (h) fluorine, (i) trifluoromethyl group, and (j) cyano group; the above-mentioned at least three mesomorphic compounds belonging to at least three mutually different series of compounds which are different from each other in the combination of the groups A and B attached to the asymmetric carbon atom respectively selected from any one of the sub-classes (a)-(j).