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. 18, 2025
Filed:
Jun. 22, 2021
Beijing Boe Technology Development Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Haowei Wang, Beijing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Abstract
A light-emitting device and a manufacturing method therefor, and a display device are disclosed. The light-emitting device includes a plurality of pixel units. Each pixel unit includes at least n sub-pixels capable of emitting light of n different colors. Each sub-pixel includes: a first electrode and a second electrode arranged oppositely; a light-emitting layer located between the first electrode and the second electrode, in at least one pixel unit, the light-emitting layer of the at least one sub-pixel includes a host quantum dot and at least one residual quantum dot emitting light of color different from the host quantum dot; and a color filter layer located on the side of the first electrode or the second electrode away from the light-emitting layer. The color filter layer is configured to pass through light emitted by the host quantum dot, and prevent light emitted by the residual quantum dot from passing through.