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:
May. 11, 2021
Filed:
Mar. 20, 2020
Fuzhou Boe Optoelectronics Technology Co., Ltd., Fujian, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Jie Liu, Beijing, CN;
Heling Zhu, Beijing, CN;
Ming Li, Beijing, CN;
Xiaoyan Tu, Beijing, CN;
Kai Diao, Beijing, CN;
Baoqiang Wang, Beijing, CN;
Woong Kim, Beijing, CN;
Xibin Shao, Beijing, CN;
Guangyan Sun, Beijing, CN;
Xin Li, Beijing, CN;
Fuzhou BOE Optoelectronics Technology Co., Ltd., Fuzhou, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present disclosure provides a backlight module, a display device and a control method thereof, and relates to the technical field of display. The backlight module includes: a light source; an optical film; a privacy film disposed on a light exit side of the optical film, and configured to reduce a divergence angle of light from the optical film; and a dimming assembly disposed on one side of the privacy film away from the optical film, and configured to not change a divergence angle of light from the privacy film in a case of being in a first state, and increase the divergence angle of the light from the privacy film in a case of being in a second state.