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.

Date of Patent:
Apr. 05, 2011

Filed:

Mar. 03, 2008
Applicants:

Yutaka Nagashima, Kitaadachi-gun, JP;

Tetsuo Kusumoto, Kitaadachi-gun, JP;

Inventors:

Yutaka Nagashima, Kitaadachi-gun, JP;

Tetsuo Kusumoto, Kitaadachi-gun, JP;

Assignee:

DIC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/32 (2006.01); C09K 19/30 (2006.01); C07C 43/225 (2006.01); C07C 25/18 (2006.01);
U.S. Cl.
CPC ...
Abstract

Since a 1-(trifluoromethyl)naphthalene derivative of the present invention has negative dielectric anisotropy, has a very large absolute value, is chemically stable with heat, light, water, and the like, moreover, it excels in compatibility with a liquid crystal compound or a liquid crystal composition used widely nowadays, it is suitable as an element of a practical liquid crystal composition capable of low voltage drive. In addition, the liquid crystal composition using the compound of the present invention has low drive voltage, is useful as a constituent material of the liquid crystal display device of low consumption of electrical power, and can be used suitably for liquid crystal display devices such as a VA type and an IPS type, and the like.


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