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:
Feb. 23, 2021
Filed:
May. 15, 2018
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventor:
Yuuki Miyazaki, Yokohama, JP;
Assignee:
Samsung Display Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); H01L 51/0062 (2013.01); H01L 51/0071 (2013.01); H01L 51/5012 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01); H01L 51/5092 (2013.01); H01L 51/5096 (2013.01);
Abstract
A nitrogen-containing compound which improves emission efficiency, and an organic electroluminescence device including the same are provided. The nitrogen-containing compound according to the present disclosure is represented by Formula 1: When the nitrogen-containing compound has an appropriate or suitable cyclic molecular structure, a small ΔEvalue may be obtained, and an organic electroluminescence device including the nitrogen-containing compound in the emission layer may exhibit thermally activated delayed fluorescence emission and have improved external quantum efficiency.