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:
Oct. 06, 2026
Filed:
May. 30, 2022
Boe Technology Group Co., Ltd., Beijing, CN;
Caiyu Qu, Beijing, CN;
Yanjun Hao, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A display substrate includes a base, a light-emitting device layer and a light extraction layer disposed in sequence. The base includes first sub-pixel regions, second sub-pixel regions and third sub-pixel regions. The light-emitting device layer includes first light-emitting devices, second light-emitting devices and third light-emitting devices that emit light of different colors. The light extraction layer includes first light extraction portions, second light extraction portions and third light extraction portions. The first light extraction portion and first light-emitting device are located in the first sub-pixel region, the second light extraction portion and second light-emitting device are located in the second sub-pixel region, and the third light extraction portion and third light-emitting device are located in the third sub-pixel region. At least two of the first light extraction portion, the second light extraction portion and the third light extraction portion have different dimensions in a thickness direction of the base.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile