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. 26, 2019
Filed:
Dec. 16, 2016
Applicant:
Kyushu University, National University Corporation, Fukuoka-shi, Fukuoka, JP;
Inventors:
Assignee:
KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION, Fukuoka-Shi, Fukuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/50 (2006.01); H05B 33/10 (2006.01); H01L 51/52 (2006.01); H01L 51/56 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0059 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/50 (2013.01); H01L 51/5004 (2013.01); H01L 51/5016 (2013.01); H01L 51/5044 (2013.01); H01L 51/5092 (2013.01); H01L 51/5096 (2013.01); H01L 51/5206 (2013.01); H01L 51/5221 (2013.01); H01L 51/56 (2013.01); H05B 33/10 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01);
Abstract
An organic electroluminescent device having a donor layer containing a donor compound, a spacer layer containing a spacer compound, and an acceptor layer containing an acceptor compound in that order, wherein the donor compound and the acceptor compound are compounds to form an exciplex to radiate delayed fluorescence, and the excited triplet energy of the spacer compound is higher than the excited triplet energy of the exciplex, can be controlled to have different emission wavelengths not requiring change of the combination of the donor compound and the acceptor compound therein.