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. 23, 2024
Filed:
Dec. 11, 2020
Applicant:
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
IDEMITSU KOSAN CO., LTD., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C09K 11/06 (2006.01); H10K 50/11 (2023.01); H10K 101/00 (2023.01); H10K 101/30 (2023.01);
U.S. Cl.
CPC ...
H10K 85/657 (2023.02); C09K 11/06 (2013.01); H10K 85/622 (2023.02); H10K 85/626 (2023.02); H10K 85/633 (2023.02); H10K 85/654 (2023.02); H10K 85/6572 (2023.02); H10K 85/6574 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/1088 (2013.01); H10K 50/11 (2023.02); H10K 2101/30 (2023.02); H10K 2101/90 (2023.02);
Abstract
An organic electroluminescence device includes an anode, an emitting layer and a cathode, in which the emitting layer includes a first compound, a second compound and a third compound. The first compound is a compound represented by a formula (1) below. The second compound has a larger singlet energy than a singlet energy of the first compound. The third compound is a fluorescent compound.