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:
Feb. 22, 2022
Filed:
Jun. 11, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
Xiandong Meng, Beijing, CN;
Wei Wang, Beijing, CN;
Xue Dong, Beijing, CN;
Jing Lv, Beijing, CN;
Xiaochuan Chen, Beijing, CN;
Jifeng Tan, Beijing, CN;
Jian Gao, Beijing, CN;
Xianqin Meng, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
A surface light source, comprising a waveguide layer and a grating structure; the waveguide layer has a first surface and a second surface opposite to each other; the grating structure is provided on the first or second surface of the waveguide layer; and the grating structure is used for guiding light incident to the grating structure to the waveguide layer and performing total reflection propagation in the waveguide layer. Such surface light source structure enables energy and direction of light emitted from a light field modulation layer to be distributed uniformly, and thus the thickness of the surface light source and the number of LEDs in the surface light source are reduced. Also disclosed is a display device.