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:
Oct. 10, 2017
Filed:
Aug. 29, 2011
Applicants:
Chihaya Adachi, Fukuoka, JP;
Kenichi Goushi, Fukuoka, JP;
Kou Yoshida, Fukuoka, JP;
Inventors:
Assignee:
KYULUX, INC., Fukuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H05B 33/14 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H01L 51/0059 (2013.01); H05B 33/14 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1059 (2013.01); H01L 51/5012 (2013.01); H01L 2251/308 (2013.01); H01L 2251/552 (2013.01);
Abstract
A delayed fluorescence material containing a mixture of an acceptor compound and a donor compound that satisfies the following formulae (1) to (4):>0.2 eV  (1)≧0.2 eV  (2)|LUMO|>2.0 eV  (3)|HOMO|≦5.3 eV  (4)wherein Trepresents the excited triplet energy of the acceptor compound; Trepresents the excited triplet energy defined of the donor compound; Srepresents the excited singlet energy of the exciplex; LUMOrepresents the energy level of LUMO of the acceptor compound; and HOMOrepresents the energy level of HOMO of the donor compound.