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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 8916063 B1

PDFFull Text
Date of Patent:
Dec. 23, 2014

Filed:

Feb. 08, 2013

Liquid crystal composition and liquid crystal display device

Applicants:

Jnc Corporation, Tokyo, JP;

Jnc Petrochemical Corporation, Tokyo, JP;

Inventors:

Yasuyuki Goto, Tokyo, JP;

Kazuhiko Saigusa, Chiba, JP;

Norikatsu Hattori, Chiba, JP;

Assignees:

JNC Corporation, Tokyo, JP;

JNC Petrochemical Corporation, Tokyo, JP;

Attorney:

Jianq Chyun IP Office

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
C09K 19/34 (2006.01); C09K 19/30 (2006.01); C09K 19/12 (2006.01); C09K 19/00 (2006.01); C07C 69/74 (2006.01); C07D 309/00 (2006.01); C07D 315/00 (2006.01); C07C 41/00 (2006.01); C07C 43/02 (2006.01); C07C 43/20 (2006.01); C09K 19/32 (2006.01); G02F 1/13 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3066 (2013.01); C09K 19/12 (2013.01); C09K 19/3003 (2013.01); C09K 19/32 (2013.01); C09K 19/3402 (2013.01); G02F 1/13 (2013.01); C09K 19/3068 (2013.01); C09K 2019/0407 (2013.01); C09K 2019/122 (2013.01); C09K 2019/3009 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3422 (2013.01); C09K 2019/3425 (2013.01);
Abstract

A liquid crystal composition and an AM liquid crystal display device are described. The liquid crystal composition has a negative dielectric anisotropy, contains a specific compound having a large negative dielectric anisotropy as a first component and a two-ring compound having a small viscosity as a second component, and may further contain a specific compound having a large negative dielectric anisotropy as a third component, a specific compound having a small viscosity as a fourth component and a specific compound having a large negative dielectric anisotropy as a fifth component. The AM liquid crystal display device includes the liquid crystal composition.

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