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:
Sep. 17, 2013

Filed:

Nov. 01, 2010
Applicants:

Norikatsu Hattori, Chiba, JP;

Takashi Hiraoka, Chiba, JP;

Taketo Maeda, Chiba, JP;

Masayuki Saito, Chiba, JP;

Inventors:

Norikatsu Hattori, Chiba, JP;

Takashi Hiraoka, Chiba, JP;

Taketo Maeda, Chiba, JP;

Masayuki Saito, Chiba, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/00 (2006.01); C09K 19/06 (2006.01); C09K 19/52 (2006.01); C09K 19/34 (2006.01); G02F 1/1333 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and a high stability to heat, or having a suitable balance regarding at least two of the characteristics. Also provided is an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having a large elastic constant as a first component, and a specific compound having a large dielectric anisotropy as a second component, and has a nematic phase, and a liquid crystal display device contains the composition.


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