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:
Nov. 11, 2025
Filed:
May. 14, 2021
Beijing Boe Technology Development Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Aidi Zhang, Beijing, CN;
BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD., Beijing, CN;
Abstract
A light-emitting substrate includes a substrate, a pixel defining layer arranged on the substrate, a plurality of light-emitting devices and at least one blocking unit. The pixel defining layer has a plurality of openings, and each light-emitting device includes a quantum dot light-emitting pattern arranged in an opening. Each opening has at least one side wall, a side wall includes a first portion and a second portion, the first portion is a portion of the side wall that is in contact with a respective quantum dot light-emitting pattern, and the second portion is a portion of the side wall that is away from the substrate relative to the first portion. Each blocking unit includes at least one siloxane segment. Each blocking unit is located in an opening, and at least one siloxane segment in each blocking unit is grafted to a second portion of a corresponding side wall.