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. 30, 2014
Filed:
Jul. 27, 2011
Takahiro Kubo, Chiba, JP;
Hiroyuki Tanaka, Chiba, JP;
Takahiro Kubo, Chiba, JP;
Hiroyuki Tanaka, Chiba, JP;
JNC Corporation, Tokyo, JP;
JNC Petrochemical Corporation, Tokyo, JP;
Abstract
A liquid crystal compound is described, which has stability to heat, light and so forth, keeps a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy and a suitable elastic constant K, and further has a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The liquid crystal compound is represented by formula (1): wherein, for example, Ris alkyl having 1 to 10 carbons, Ris alkoxy having 1 to 10 carbons; ring A, ring Aand ring Aare 1,4-cyclohexylene, 1,4-phenylene, or 1,4-phenylene in which arbitrary hydrogen is replaced by fluorine; Zand Zare a single bond, —CHCH— or —CH═CH—; a, b and e are 0 or 1, and c and d is 0; X, Xand Xare hydrogen, and Xis fluorine; and Land Lare fluorine.