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. 11, 2025
Filed:
Sep. 01, 2021
Beijing Boe Display Technology Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Na Han, Beijing, CN;
Chenru Wang, Beijing, CN;
Ruijun Dong, Beijing, CN;
Yulong Wu, Beijing, CN;
Ke Li, Beijing, CN;
Jiarong Bai, Beijing, CN;
Zhanshan Ma, Beijing, CN;
Haitao Huang, Beijing, CN;
Beijing BOE Display Technology Co., Ltd., Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
Provided are an optical waveguide structure, an Augmented Reality (AR) device, and a method for obtaining an emergent light efficiency of an optical waveguide structure, which relates to the technical field of display. The optical waveguide structure includes: an optical waveguide body, a coupling-in grating disposed at the optical waveguide body, and a plurality of coupling-out gratings distributed and arranged. The coupling-in grating is configured to couple image light into the optical waveguide body. The optical waveguide body is configured to generate a total internal reflection of the image light to the coupling-out gratings. Diffraction efficiencies of each of the coupling-out gratings are different, and each of the coupling-out gratings is configured to couple the image light out of the optical waveguide body at the same brightness.