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:
Aug. 06, 2024
Filed:
Jun. 23, 2021
Applicant:
Boe Technology Group Co., Ltd., Beijing, CN;
Inventor:
Siqi Wang, Beijing, CN;
Assignee:
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 209/86 (2006.01); C07D 239/26 (2006.01); C07D 251/24 (2006.01); C07F 7/08 (2006.01); C09K 11/06 (2006.01); H10K 85/40 (2023.01); H10K 85/60 (2023.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/30 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 209/86 (2013.01); C07D 239/26 (2013.01); C07D 251/24 (2013.01); C07F 7/0812 (2013.01); C09K 11/06 (2013.01); H10K 85/40 (2023.02); H10K 85/654 (2023.02); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 2101/30 (2023.02); H10K 2101/90 (2023.02); H10K 2102/351 (2023.02);
Abstract
The present disclosure provides a co-host material, a composition for forming a light emitting layer, and a light emitting device. The co-host material can at least partially solve the difficulty in the limited selection of thermally activated delayed fluorescent materials in the existing light emitting devices, and the difficulty in providing a light emitting layer of a blue light emitting device. The co-host material comprises a first compound and a second compound each having a specific general formula.