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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 10400168 B1

PDFFull Text
Date of Patent:
Sep. 03, 2019

Filed:

Aug. 25, 2015

Composition and liquid crystal display device using the same

Applicant:

Dic Corporation, Tokyo, JP;

Inventors:

Shinji Ogawa, Kita-adachi-gun, JP;

Makoto Negishi, Kita-adachi-gun, JP;

Yoshinori Iwashita, 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 19/34 (2006.01); C09K 19/54 (2006.01); C09K 19/32 (2006.01); C09K 19/04 (2006.01); G02F 1/1343 (2006.01); C09K 19/12 (2006.01); C09K 19/30 (2006.01); G02F 1/137 (2006.01);
U.S. Cl.
CPC ...
C09K 19/3402 (2013.01); C09K 19/04 (2013.01); C09K 19/322 (2013.01); C09K 19/34 (2013.01); C09K 19/54 (2013.01); C09K 2019/0411 (2013.01); C09K 2019/0448 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/122 (2013.01); C09K 2019/123 (2013.01); C09K 2019/124 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/3009 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3019 (2013.01); C09K 2019/3021 (2013.01); C09K 2019/3025 (2013.01); C09K 2019/3422 (2013.01); G02F 1/134363 (2013.01); G02F 2001/13706 (2013.01); G02F 2001/134372 (2013.01);
Abstract

An object of the present invention is to provide a composition that has positive Δε, exhibits a liquid crystal phase over a wide temperature range, has low viscosity, excellent solubility at low temperatures, and high resistivity and voltage holding ratio, and is stable against heat and light. By using this composition, IPS or TN liquid crystal display devices and the like that have excellent display quality and suppress display failures such as image-sticking and drop marks are provided in high yield. Provided is a composition that contains at least one selected from the group consisting of compounds represented by general formulae (i) and (ii) and at least one compound represented by general formula (iii). Also provided is a liquid crystal display device that uses the composition and an IPS or FFS device that uses the composition.

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