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. 07, 2010
Filed:
Sep. 06, 2006
Tomoyuki Kondou, Chiba, JP;
Shuichi Matsui, Chiba, JP;
Keiji Kimura, Chiba, JP;
Chisso Petrochemical Corporation, Tokyo, JP;
Chisso Corporation, Osaka, JP;
Abstract
A liquid crystal (LC) compound having generally required physical properties, low viscosity, proper optical anisotropy, proper dielectric anisotropy and good compatibility with other LC compounds is described. An LC composition including the compound and an LCD device including the composition are also described. The compound is expressed by formula (1a): wherein the ring Aand the ring Aare independently 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl or naphthalene-2,6-diyl, in which any hydrogen can be replaced by halogen; Z, Zand Zare independently a single bond, —(CH)—, —(CH)—, —CH═CH—, —C≡C—, —CFO—, —OCF—, —COO— or —OCO—; X, X, X, X, Xand Xare independently hydrogen or fluorine; Y is —OCHF, —OCHF, —OCF, —SCHF, —SCHF, —SCF, —CHF, —CHF, —CF, fluorine or chlorine; Land Lare independently hydrogen or fluorine; and 'l' and 'm' are independently equal to 0 or 1.