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:
Jan. 29, 2013

Filed:

May. 16, 2008
Applicants:

Hidetoshi Nakata, Kitaadachi-gun, JP;

Takeshi Kuriyama, Kitaadachi-gun, JP;

Kiyofumi Takeuchi, Kitaadachi-gun, JP;

Haruyoshi Takatsu, Kitaadachi-gun, JP;

Daniel Stoenescu, Palaiseau, FR;

Jean-claude Dubois, Bullion, FR;

Ivan Dozov, Orsay, FR;

Inventors:

Hidetoshi Nakata, Kitaadachi-gun, JP;

Takeshi Kuriyama, Kitaadachi-gun, JP;

Kiyofumi Takeuchi, Kitaadachi-gun, JP;

Haruyoshi Takatsu, Kitaadachi-gun, JP;

Daniel Stoenescu, Palaiseau, FR;

Jean-Claude Dubois, Bullion, FR;

Ivan Dozov, Orsay, FR;

Assignees:

DIC Corporation, Tokyo, JP;

Nemoptic, Les Hameaux, FR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/00 (2006.01); C09K 19/02 (2006.01); C09K 19/06 (2006.01); C09K 19/52 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a nematic liquid crystal composition suitable for a bistable nematic liquid crystal display. A bistable nematic liquid crystal display having a wide nematic phase temperature range and operating temperature range can be obtained by using a nematic liquid crystal composition comprising at least 20% by weight of a specific liquid crystal compound (A) having a polar group and 5 to 50% by weight of a specific liquid crystal compound (B) not having a polar group, along with comprising, in the compound (B), at least 3% by weight of a specific liquid crystal compound having a alkenyl group.


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