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:
Apr. 14, 2020
Filed:
Jun. 27, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Hefei, CN;
Xiaoyue He, Beijing, CN;
Lei Zhang, Beijing, CN;
Tsung Chieh Kuo, Beijing, CN;
Ming Hu, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD, Anhui, CN;
Abstract
The present disclosure relates to a chiral compound of formula (I), wherein R, R, R, R, n, n', m and m′ are as defined in the specification. The present disclosure also relates to the preparation of the chiral compound. A cholesteric liquid crystal can be obtained by adding the compound to a nematic liquid crystal material, and the helical twisting power constant of the chiral additive can be changed by irradiating, so as to expand the reflection band width. As such, the present disclosure further relates to the use of the chiral compound in preparing a cholesteric liquid crystal material, a cholesteric liquid crystal material comprising the chiral compound of the present disclosure, and a display device comprising the cholesteric liquid crystal material.