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:
May. 17, 2022
Filed:
Sep. 18, 2019
Applicant:
Samsung Display Co., Ltd., Yongin-si, KR;
Inventors:
Assignee:
Samsung Display Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07F 5/02 (2006.01); C09K 11/06 (2006.01); C07D 495/06 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/008 (2013.01); C07D 495/06 (2013.01); C07F 5/027 (2013.01); C09K 11/06 (2013.01); H01L 51/0061 (2013.01); C09K 2211/1018 (2013.01); C09K 2211/1022 (2013.01); H01L 51/0005 (2013.01); H01L 51/0071 (2013.01); H01L 51/5012 (2013.01); H01L 51/5016 (2013.01);
Abstract
An organic electroluminescence device according to an embodiment of the present disclosure includes a first electrode, a hole transport region, an emission layer, an electron transport region, and a second electrode, in which the emission layer includes a polycyclic compound represented by Formula 1, thereby achieving improved emission efficiency: