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:
Jan. 27, 2026
Filed:
May. 17, 2021
Boe Technology Group Co., Ltd., Beijing, CN;
Mengyang Wen, Beijing, CN;
Xing Fan, Beijing, CN;
Yueping Zuo, Beijing, CN;
Chunyang Wang, Beijing, CN;
Xiongnan Zhang, Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
An OLED display substrate and a method for making the same, a display panel and a display device are provided. The OLED display substrate includes: a base substrate; a thin-film transistor array layer located on the base substrate; a pixel definition layer and a light-emitting unit located on a side of the thin-film transistor array layer away from the base substrate; where the pixel definition layer defines a pixel opening penetrating the pixel definition layer, at least part of the hierarchical structure of the light-emitting unit is located in the pixel opening, and a side surface of the pixel opening is provided with a insulative barrier layer.