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:
Aug. 07, 2018
Filed:
Apr. 21, 2016
Boe Technology Group Co., Ltd., Beijing, CN;
Beijing Boe Optoelectronics Technology Co., Ltd., Beijing, CN;
Xiaojuan Wu, Beijing, CN;
Huijie Xie, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
A grating is provided. The grating includes a first substrate and a second substrate opposite the first substrate, a plurality of first transparent electrodes arranged at equal intervals along a surface of the first substrate and between the first substrate and the second substrate, and a plurality of second transparent electrodes each arranged along a surface of the second substrate and opposite to a respective one of the plurality of first transparent electrodes, and a liquid crystal mixture layer arranged between each pair of the first transparent electrodes and respective second transparent electrodes, wherein a liquid crystal mixture in the liquid crystal mixture layer is switchable between a smectic phase and a cholesteric phase such that the liquid crystal mixture is transparent in the smectic phase and black in the cholesteric phase.