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:
Mar. 16, 2021
Filed:
Sep. 06, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Chunmiao Zhou, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A display device and a control method of a display device are provided. The display device includes: a display assembly including a plurality of rows of pixel units; a phase retarder; a polarizer; and a visible range adjuster between the display assembly and the polarizer, the visible range adjuster having two electrode layers and a liquid crystal layer divided into at least one first region and at least one second region, and the visible range adjuster is configured to apply a voltage to the first region of the liquid crystal layer through the two electrode layers in response to a first signal, to provide a first visible range for the display device, the first visible range being greater than a second visible range of the display device with the two electrode layers electrically de-energized.