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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 10723947 B1

PDFFull Text
Date of Patent:
Jul. 28, 2020

Filed:

Apr. 21, 2016

Liquid crystal composition and liquid crystal display device thereof

Applicant:

Jiangsu Hecheng Display Technology Co., Ltd., Jiangsu, CN;

Inventors:

Yunyun Liu, Jiangsu, CN;

Wenming Han, Jiangsu, CN;

Wenquan Ding, Jiangsu, CN;

Pengfei Li, Jiangsu, CN;

Haibin Xu, Jiangsu, CN;

Lifang Yao, Jiangsu, CN;

Di He, Jiangsu, CN;

Wenyang Ma, Jiangsu, CN;

Heming Zhang, Jiangsu, CN;

Junqiang Zhang, Jiangsu, CN;

Assignee:

JIANGSU HECHENG DISPLAY TECHNOLOGY CO., LTD., Jiangsu, CN;

Attorney:

JCIPRNET

Primary Examiner:

Geraldina Visconti

Int. Cl.
CPC ...
G02F 1/13 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01); C09K 19/44 (2006.01); C09K 19/42 (2006.01); C09K 19/30 (2006.01); G02F 1/1333 (2006.01); C09K 19/32 (2006.01); C09K 19/34 (2006.01); C09K 19/04 (2006.01);
U.S. Cl.
CPC ...
C09K 19/12 (2013.01); C09K 19/20 (2013.01); C09K 19/3066 (2013.01); C09K 19/32 (2013.01); C09K 19/3405 (2013.01); C09K 19/42 (2013.01); C09K 19/44 (2013.01); G02F 1/1333 (2013.01); C09K 2019/0466 (2013.01); C09K 2019/123 (2013.01); C09K 2019/301 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/3016 (2013.01); C09K 2019/3422 (2013.01);
Abstract

Provided is a liquid crystal composition, comprising: one or more compounds of general formula I accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula II accounting for 1-30% of the total weight of the liquid crystal composition; one or more compounds of general formula III accounting for 1-20% of the total weight of the liquid crystal composition; and one or more compounds of general formula IV accounting for 30-80% of the total weight of the liquid crystal composition. The liquid crystal composition has at least one of the following properties: a large specific resistance, a high voltage holding ratio, a suitable optical anisotropy, a large dielectric anisotropy, a small viscosity, a low threshold voltage, etc., and is also green and environmentally friendly. The liquid crystal composition is suitable for use in a liquid crystal display device, enabling the liquid crystal display device to have the following properties: a high voltage holding ratio, a short response time, a high contrast ratio, a low energy consumption, and being green and environmentally friendly, etc.

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