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:
Dec. 27, 2018
Boe Technology Group Co., Ltd., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
An optical waveguide display substrate includes a first base substrate (); a reflective element () on the first base substrate (), the reflective element () comprising a first surface facing the first base substrate (), a second surface on an opposite side of the reflective element () from the bottom surface, and two light-receiving surfaces connecting the first surface to the second surface at opposite ends of the reflective element (); and a first film assembly between the first base substrate () and the reflective element (), the first film assembly comprising a first optical layer () and a second optical layer () on the first optical layer (). A refractive index of the first optical layer () may be smaller than a refractive index of the second optical layer (). A display device includes the optical waveguide display substrate.