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:
Aug. 25, 2026
Filed:
Feb. 23, 2021
Beijing Boe Technology Development Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Dong Li, Beijing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
Disclosed are a quantum dot light-emitting device and a manufacturing method therefor, and a display apparatus, including: coating a substrate with a quantum dot solution, wherein each quantum dot includes a quantum dot body and a first crosslinkable ligand connected to the surface of the quantum dot body, and when the quantum dots are in a solution state, the first crosslinkable ligand is in a decrosslinking state; carrying out cross-linking reaction on the first crosslinkable ligand of the quantum dots at a first temperature; using laser to irradiate a quantum dot region to be removed after the crosslinking reaction, the quantum dots in said region being decrosslinked at a second temperature generated by laser irradiation, and a difference between the second temperature and the first temperature being greater than a preset value; and removing the quantum dots in said region to form a patterned quantum dot layer.