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. 09, 2021
Filed:
Apr. 08, 2019
Boe Technology Group Co., Ltd., Beijing, CN;
Gang Yu, Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A quantum dot light emitting diode includes: a light emitting layer, the light emitting layer including a first quantum dot layer and a second quantum dot layer which are stacked; the first quantum dot layer including a first quantum dot having a hole transporting property; and the second quantum dot layer including a second quantum dot having an electron transporting property. The first quantum dot layer having hole transporting property and the second quantum dot layer having electron transporting property are stacked. The first quantum dot layer and the second quantum dot layer not only form a quantum dot light emitting layer, but also transport holes and electrons respectively, thereby causing excitons to be recombined in the first quantum dot layer and/or the second quantum dot layer, or near the interface of the first quantum dot layer and the second quantum dot layer.