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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 10351772 B1

PDFFull Text
Date of Patent:
Jul. 16, 2019

Filed:

Apr. 09, 2015

Nematic liquid crystal composition and liquid crystal display element using same

Applicant:

Dic Corporation (Tokyo), Tokyo, JP;

Inventors:

Go Sudo, Kita-adachi-gun, JP;

Marina Goto, Kita-adachi-gun, JP;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/12 (2006.01); C08F 20/26 (2006.01); C09K 19/14 (2006.01); C09K 19/16 (2006.01); C09K 19/20 (2006.01); C09K 19/30 (2006.01); C09K 19/38 (2006.01); C09K 19/42 (2006.01); C09K 19/54 (2006.01); G02F 1/13 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/12 (2013.01); C08F 20/26 (2013.01); C09K 19/14 (2013.01); C09K 19/16 (2013.01); C09K 19/20 (2013.01); C09K 19/2007 (2013.01); C09K 19/30 (2013.01); C09K 19/38 (2013.01); C09K 19/42 (2013.01); C09K 19/54 (2013.01); G02F 1/13 (2013.01); G02F 1/133365 (2013.01); C09K 2019/0448 (2013.01); C09K 2019/122 (2013.01); G02F 2001/133397 (2013.01);
Abstract

The present invention relates to a nematic liquid crystal composition containing a polymerizable compound and having a negative dielectric anisotropy (Δε) and PSA or PSVA liquid crystal display element produced by using the same. The liquid crystal composition according to the present invention can provide PSA or PSVA liquid crystal display element, in which a sufficient pretilt angle is included, the amount of remaining monomer is small, there are no or almost no problems, e.g., alignment defects and display defects, arisen from a low voltage holding rate (VHR) and the like, and excellent response performance is exhibited. A liquid crystal display element using the liquid crystal composition according to the present invention is useful for an active-matrix-drive liquid crystal display element and can be applied to PSA, PSVA, and other liquid crystal display elements.

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