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:
May. 26, 2026
Filed:
Sep. 24, 2021
Beijing Boe Technology Development Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Jingwen Feng, Beijing, CN;
Zhuo Li, Beijing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
The present application provides a quantum dot film layer, a quantum dot light emitting device and a manufacturing method therefor to improve the balance of carriers. The quantum dot film layer includes a first quantum dot layer and a second quantum dot layer. The first quantum dot layer includes first quantum dots, and first photosensitive ligands connected with surfaces of the first quantum dots. The second quantum dot layer includes second quantum dots, and second non-photosensitive ligands connected with surfaces of the second quantum dots. The second quantum dots are the same as the first quantum dots.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile