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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 9442321 B1

PDFFull Text
Date of Patent:
Sep. 13, 2016

Filed:

Nov. 26, 2013

Liquid crystal display device

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Masakazu Kaneoya, Kita-adachi-gun, JP;

Kiyofumi Takeuchi, Kita-adachi-gun, JP;

Seiji Funakura, Kamisu, JP;

Isao Oshiumi, Tokyo, JP;

Katsunori Shimada, Sakura, JP;

Assignee:

DIC CORPORATION, Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Chancecity Robinson

Int. Cl.
CPC ...
C09K 19/60 (2006.01); G02F 1/1335 (2006.01); C09K 19/32 (2006.01); C09K 19/20 (2006.01); C09K 19/54 (2006.01); G02F 1/13 (2006.01); C09K 19/04 (2006.01); C09K 19/12 (2006.01); C09K 19/30 (2006.01); C09K 19/52 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133514 (2013.01); C09K 19/2014 (2013.01); C09K 19/3001 (2013.01); C09K 19/3066 (2013.01); C09K 19/322 (2013.01); C09K 19/542 (2013.01); C09K 19/60 (2013.01); G02F 1/133512 (2013.01); C09K 2019/0448 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/122 (2013.01); C09K 2019/123 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/304 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3021 (2013.01); C09K 2019/3036 (2013.01); C09K 2019/3037 (2013.01); C09K 2019/523 (2013.01); G02F 1/13 (2013.01);
Abstract

There is provided a liquid crystal display apparatus that may limit a reduction in the voltage holding ratio (VHR) of a liquid crystal layer and limit an increase in the ion density (ID) in the liquid crystal layer and address issues of faulty display such as white missing pixels, alignment inconsistencies, and burn-in. The liquid crystal display apparatus includes a first substrate, a second substrate, a liquid crystal composition layer held between the first substrate and the second substrate, a color filter including a black matrix and at least RGB three-color pixel portions, a pixel electrode, and a common electrode. The liquid crystal composition layer is composed of a liquid crystal composition including one or more compounds represented by General Formula (LC1).

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