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:
Aug. 04, 2009
Filed:
Mar. 03, 2006
Yasuyuki Goto, Tokyo, JP;
Teru Shimada, Ichihara, JP;
Teruyo Sugiura, Ichihara, JP;
Chisso Corporation, Osaka, JP;
Chisso Petrochemical Corporation, Tokyo, JP;
Abstract
Such a liquid crystal compound is provided that has stability to heat, light and so forth, has a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy, and suitable elastic constants Kand K(K: bend elastic constant, K: splay elastic constant), and has suitable negative dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition are also provided. The liquid crystal compound is represented by one of formulas (a) to (d), the liquid crystal composition contains the liquid crystal compound, and the liquid crystal display device contains the liquid crystal composition: wherein Ra and Rb are independently linear alkyl or linear alkoxy, rings A, A, B and C are independently trans-1,4-cyclohexylene or 1,4-phenylene, Z, Z, Zand Zare independently a single bond or alkylene, and one of Xand Xis fluorine, and the other thereof is chlorine.