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. 03, 2026
Filed:
Nov. 29, 2021
Boe Technology Group Co., Ltd., Beijing, CN;
Lei Zhao, Beijing, CN;
Zhiqiang Jiao, Beijing, CN;
Xiaohu Li, Beijing, CN;
Xiaoyun Liu, Beijing, CN;
Shuilang Dong, Beijing, CN;
Guangcai Yuan, Beijing, CN;
Lilei Zhang, Beijing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Abstract
A display substrate is provided, the display substrate has a plurality of sub-pixels, and includes a driving circuit substrate, a plurality of first electrodes, a pixel definition layer and a light-emitting material layer. The driving circuit substrate includes a plurality of pixel driving circuits and a protective insulating layer, the protective insulating layer includes a plurality of first vias, and the plurality of first electrodes are respectively electrically connected to output terminals of the plurality of pixel driving circuits through the first vias. The pixel definition layer includes a plurality of sub-pixel openings and at least one partition structure. The light-emitting material layer is at least in the plurality of sub-pixel openings, the pixel definition layer includes a first pixel definition sub-layer and a second pixel definition sub-layer, and a width of the second pixel definition sub-layer is greater than a width of the first pixel defining sub-layer.