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:
Jul. 25, 2017

Filed:

Aug. 12, 2015
Applicants:

Jnc Corporation, Tokyo, JP;

Jnc Petrochemical Corporation, Tokyo, JP;

Inventors:

Eriko Kurihara, Chiba, JP;

Masayuki Saito, Chiba, JP;

Yoshimasa Furusato, Chiba, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/34 (2006.01); C09K 19/30 (2006.01); C07C 43/225 (2006.01); C07D 309/06 (2006.01); C07D 311/60 (2006.01); C07C 57/62 (2006.01); C09K 19/54 (2006.01); C09K 19/04 (2006.01); C09K 19/12 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3402 (2013.01); C07C 43/225 (2013.01); C07C 57/62 (2013.01); C07D 309/06 (2013.01); C07D 311/60 (2013.01); C09K 19/3048 (2013.01); C09K 19/3066 (2013.01); C09K 19/3068 (2013.01); C09K 19/3098 (2013.01); C09K 2019/0448 (2013.01); C09K 2019/123 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3021 (2013.01); C09K 2019/3078 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/3425 (2013.01); C09K 2019/548 (2013.01);
Abstract

A liquid crystal composition having at least one or a suitable balance regarding at least two of characteristics such as high maximum temperature of a nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat and a large elastic constant; an AM device having characteristics such as short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and long service life are described. The liquid crystal composition has negative dielectric anisotropy, and contains a specific compound having negatively large dielectric anisotropy and a large elastic constant as a first component, and may contain a specific compound having high maximum temperature or small viscosity as a second component, a specific compound having negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.


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