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. 17, 2026
Filed:
Oct. 22, 2021
Boe Technology Group Co., Ltd., Beijing, CN;
Shu Jing, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The display substrate includes: a base substrate including sub-pixel regions with opening regions and non-opening regions; light-emitting devices each including a first electrode, a light-emitting layer and a second electrode; a first light extraction layer between a light-emitting layer and a second electrode; and a second light extraction layer on the side of the second electrode away from the first light extraction layer. The first light extraction layer is provided in at least part of a non-opening region, and the refractive index of the first light extraction layer is greater than the refractive index of the second electrode. An orthographic projection of the second light extraction layer on the base substrate completely covers an orthographic projection of the first light extraction layer on the base substrate, and the refractive index of the second light extraction layer is greater than the refractive index of the second electrode.