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. 27, 2018
Filed:
May. 25, 2016
Applicant:
Samsung Display Co., Ltd., Yongin-si, Gyeonggi-do, KR;
Inventor:
Hee Joo Ko, Suwon-si, KR;
Assignee:
Samsung Display Co., Ltd., Yongin-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/08 (2006.01); B32B 9/00 (2006.01); H01L 51/50 (2006.01); H01L 51/00 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5092 (2013.01); H01L 51/5004 (2013.01); H01L 51/007 (2013.01); H01L 51/0056 (2013.01); H01L 51/0058 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/5072 (2013.01); H01L 51/5256 (2013.01); H01L 2251/552 (2013.01);
Abstract
An organic light emitting element according to an example embodiment of the present disclosure includes: a first electrode and a second electrode facing each other; an emission layer between the first electrode and the second electrode; an electron transport layer between the emission layer and the second electrode; and a buffer layer between the emission layer and the electron transport layer, wherein the buffer layer includes a first material having a higher LUMO level than that of the electron transport layer.