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:
Jul. 19, 2022
Filed:
Oct. 17, 2016
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Inventors:
Hee-Choon Ahn, Gyeonggi-do, KR;
Sang-Hee Cho, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 413/14 (2006.01); C07D 413/04 (2006.01); C07D 413/12 (2006.01); C07D 417/04 (2006.01); C07D 403/10 (2006.01); C07D 513/04 (2006.01); C07D 498/14 (2006.01); C07D 417/14 (2006.01); C07D 413/10 (2006.01); C07D 403/04 (2006.01); C07D 417/10 (2006.01); C07D 277/60 (2006.01); C07D 487/04 (2006.01); C07D 495/14 (2006.01); H01L 51/00 (2006.01); C09K 11/06 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5072 (2013.01); C07D 277/60 (2013.01); C07D 403/04 (2013.01); C07D 403/10 (2013.01); C07D 413/04 (2013.01); C07D 413/10 (2013.01); C07D 413/12 (2013.01); C07D 413/14 (2013.01); C07D 417/04 (2013.01); C07D 417/10 (2013.01); C07D 417/14 (2013.01); C07D 487/04 (2013.01); C07D 495/14 (2013.01); C07D 498/14 (2013.01); C07D 513/04 (2013.01); C09K 11/06 (2013.01); H01L 51/006 (2013.01); H01L 51/0052 (2013.01); H01L 51/0054 (2013.01); H01L 51/0058 (2013.01); H01L 51/0059 (2013.01); H01L 51/0061 (2013.01); H01L 51/0067 (2013.01); H01L 51/0071 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0074 (2013.01); H01L 51/0081 (2013.01); H01L 51/5004 (2013.01); H01L 51/5012 (2013.01); H01L 51/5056 (2013.01); H01L 51/5096 (2013.01); H01L 51/508 (2013.01); H01L 51/5076 (2013.01);
Abstract
The present disclosure relates to an electron buffering material, and an organic electroluminescent device comprising a first electrode, a second electrode facing the first electrode, a light-emitting layer between the first electrode and the second electrode, and an electron transport zone and an electron buffering layer between the light-emitting layer and the second electrode. The organic electroluminescent device comprising the electron buffering material of the present disclosure has low driving voltage, excellent luminous efficiency, and long lifespan.