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:
Apr. 25, 2023
Filed:
Feb. 28, 2020
Kunshan Go-visionox Opto-electronics Co., Ltd, Kunshan, CN;
Tsinghua University, Beijing, CN;
Lian Duan, Kunshan, CN;
Minghan Cai, Kunshan, CN;
Xiaozeng Song, Kunshan, CN;
Jinbei Wei, Kunshan, CN;
KunShan Go-Visionox Opto-Electronics Co., Ltd, Kunshan, CN;
TSINGHUA UNIVERSITY, Beijing, CN;
Abstract
An organic electroluminescence device and a display apparatus, where the organic electroluminescence device includes an organic light emitting layer which includes a host material, a sensitizer material, and a resonance thermally activated delayed fluorescent material, where the host material is a wide bandgap material, and the sensitizer material is an exciplex material, a singlet state energy level for the wide bandgap material is greater than a singlet state energy level for the exciplex, and a triplet state energy level for the wide bandgap material is greater than a triplet state energy level for the exciplex, and a singlet state energy level for the exciplex material is greater than a singlet state energy level for the resonance delayed fluorescent material, and a triplet state energy level for the exciplex material is greater than a triplet state energy level for the resonance delayed fluorescent material.