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.:
Date of Patent:
Dec. 13, 2016
Filed:
Nov. 19, 2013
Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd., Hebei Province, CN;
Guoliang Yun, Hebei Province, CN;
Ruimao Hua, Hebei Province, CN;
Kui Wang, Hebei Province, CN;
Zefeng Hou, Hebei Province, CN;
Lei Zhao, Hebei Province, CN;
Gang Wen, Hebei Province, CN;
Lianbo Mao, Hebei Province, CN;
Shijiazhuang Chenzhi Yonghua Display Materials Co., Ltd., Shi Jia Zhuang, CN;
Abstract
A negative dielectric anisotropic liquid crystal compound containing 2,3-difluorophenyl, and a preparation method and use thereof are disclosed. The compound has a general structural formula as shown in Formula I. The negative dielectric anisotropic liquid crystal compound has a negative dielectric anisotropy (Δ∈), and has cyclobutyl or cyclopentyl as a terminal group. Compared with conventional liquid crystal compounds with a flexible alkyl chain as a terminal group, the compound of Formula I according to the present invention has the advantage of high clearing point, and enables extension of the application range of a liquid crystal mixture because a positive correlation exists between the clearing points of the liquid crystal mixture and monomer liquid crystal compounds. In addition, the compound can increase the absolute value of the negative dielectric constant of the liquid crystal mixture, thus having an important application value.