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. 22, 2022
Filed:
Oct. 09, 2019
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Georgios Liaptsis, Mannheim, DE;
Christian Kasparek, Heidelberg, DE;
Harald Fluegge, Karlsruhe, DE;
Sandra Bonus, Cologne, DE;
Patrick Pingel, Potsdam, DE;
Jaime Leganes Carballo, Heidelberg, DE;
Irina Roerich, Mannheim, DE;
Assignee:
Samsung Display Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); H01L 51/0067 (2013.01); H01L 51/0094 (2013.01); H01L 51/50 (2013.01); H01L 2251/552 (2013.01);
Abstract
The present invention relates to organic electroluminescent devices comprising a light-emitting layer B comprising a host material H, a first thermally activated delayed fluorescence (TADF) material E, and a depopulation agent S.