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. 28, 2019
Filed:
Nov. 24, 2016
Boe Technology Group Co., Ltd., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
The present disclosure provides a light-emitting device and manufacturing method thereof, and a display apparatus containing the light-emitting device. The light-emitting device comprises a quantum dot light-emitting layer, an electron transport layer, and an energy transfer layer. The quantum dot light-emitting layer comprises a quantum dot material. The energy transfer layer is between the quantum dot light-emitting layer and the electron transport layer. The energy transfer layer is configured to facilitate a transfer of energy from the electron transport layer to the quantum dot light-emitting layer such that the quantum dot light-emitting layer has an improved electroluminescence efficiency compared with the quantum dot light-emitting layer having an energy transferred directly from the electron transport layer without the energy transfer layer.