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:
Sep. 13, 2022
Filed:
Mar. 18, 2020
Applicant:
Beijing Boe Technology Development Co., Ltd., Beijing, CN;
Inventor:
Boris Kristal, Beijing, CN;
Assignee:
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/502 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01); H01L 2251/558 (2013.01);
Abstract
A quantum dot electroluminescent element, a display panel, and a display device are provided. The quantum dot electroluminescent element includes an anode layer, a composite light-emitting layer, and a cathode layer which are stacked. The composite light-emitting layer includes at least two quantum dot light-emitting layers which are stacked, and an intermediate layer arranged between every two adjacent ones of the at least two quantum dot light-emitting layers; the intermediate layer is configured to transport holes and block electrons.