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. 10, 2021
Filed:
Jul. 06, 2017
Boe Technology Group Co., Ltd., Beijing, CN;
Beijing Boe Display Technology Co., Ltd., Beijing, CN;
Yang You, Beijing, CN;
Ruizhi Yang, Beijing, CN;
Ruiyong Wang, Beijing, CN;
Zhenhua Lv, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Beijing BOE Display Technology Co., Ltd., Beijing, CN;
Abstract
The present application discloses a peep-proof apparatus for switching a viewing angle of a display panel between a first viewing angle and a second viewing angle. The peep-proof apparatus includes a base substrate; a first liquid crystal layer on the base substrate; a second liquid crystal layer on a side of the first liquid crystal layer distal to the base substrate; a first controller configured to control the first liquid crystal layer to switch between being light transmissive and being light blocking in a plurality of first regions spaced apart from each other while other regions in the first liquid crystal layer being light transmissive; and a second controller configured to control the second liquid crystal layer to switch between being light transmissive and being light blocking in a plurality of second regions spaced apart from each other while other regions in the second liquid crystal layer being light transmissive.