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:
Dec. 26, 2017
Filed:
Mar. 30, 2015
Applicant:
Udc Ireland Limited, Dublin, IE;
Inventors:
Junichi Tanabe, Hyogo, JP;
Christian Lennartz, Schifferstadt, DE;
Assignee:
UDC Ireland Limited, Dublin, IE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 401/14 (2006.01); C07D 413/04 (2006.01); C07D 413/14 (2006.01); C09K 11/02 (2006.01); C07D 417/14 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 401/14 (2013.01); C07D 413/04 (2013.01); C07D 413/14 (2013.01); C07D 417/14 (2013.01); C09K 11/02 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H01L 51/0071 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1059 (2013.01); H01L 51/5012 (2013.01); H01L 51/5028 (2013.01); H01L 2251/552 (2013.01);
Abstract
The present invention relates to organic light emitting elements, comprising thermally activated delayed fluorescence (TADF) emitters and/or hosts on basis of benzotriazoles, which have a sufficiently small energy gap between Sand T(ΔE) to enable up-conversion of the triplet exciton from Tto S. The organic light emitting elements show high electroluminescent efficiency.