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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.:

US 10385271 B1

PDFFull Text
Date of Patent:
Aug. 20, 2019

Filed:

Nov. 19, 2015

Liquid crystal composition and liquid crystal display device

Applicants:

Jnc Corporation, Tokyo, JP;

Jnc Petrochemical Corporation, Tokyo, JP;

Inventors:

Yoshimasa Furusato, Chiba, JP;

Masayuki Saito, Chiba, JP;

Assignees:

JNC CORPORATION, Tokyo, JP;

JNC PETROCHEMICAL CORPORATION, Tokyo, JP;

Attorney:

JCIPRNET

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/34 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01); C09K 19/30 (2006.01); C09K 19/54 (2006.01); G02F 1/13 (2006.01); G02F 1/1337 (2006.01); C09K 19/02 (2006.01); C09K 19/32 (2006.01); C09K 19/52 (2006.01); G02F 1/1362 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3402 (2013.01); C09K 19/0208 (2013.01); C09K 19/0216 (2013.01); C09K 19/12 (2013.01); C09K 19/20 (2013.01); C09K 19/30 (2013.01); C09K 19/3003 (2013.01); C09K 19/3066 (2013.01); C09K 19/3068 (2013.01); C09K 19/322 (2013.01); C09K 19/52 (2013.01); C09K 19/54 (2013.01); G02F 1/13 (2013.01); G02F 1/1337 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/0496 (2013.01); C09K 2019/123 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/3009 (2013.01); C09K 2019/3015 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3019 (2013.01); C09K 2019/3021 (2013.01); C09K 2019/3025 (2013.01); C09K 2019/3077 (2013.01); C09K 2019/3083 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/3425 (2013.01); G02F 1/1362 (2013.01);
Abstract

To provide a liquid crystal composition having at least one or a suitable balance regarding two of characteristics such as high maximum or low minimum temperature of a nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light or heat and a large elastic constant; and an AM device including the composition and having a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a quencher as an additive component and a specific compound having large positive dielectric anisotropy as a first component, and a liquid crystal display device includes the composition. The composition may contain a specific compound having high maximum temperature or small viscosity as a second component, or a specific compound having negative dielectric anisotropy as a third component.

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