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:
Sep. 28, 2021
Filed:
Nov. 11, 2015
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Inventors:
Jae-Hoon Shim, Seoul, KR;
Kyoung-Jin Park, Seongnam, KR;
Yoo-Jin Doh, Seoul, KR;
Bitnari Kim, Cheonan, KR;
Assignee:
Rohm and Haas Electronic Materials Korea Ltd, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/50 (2006.01); C07D 403/10 (2006.01); C07D 403/14 (2006.01); C07D 405/14 (2006.01); C07D 409/14 (2006.01); C07D 487/04 (2006.01); C07D 495/04 (2006.01); C07F 7/08 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H05B 33/14 (2006.01);
U.S. Cl.
CPC ...
C07D 403/10 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C07D 487/04 (2013.01); C07D 495/04 (2013.01); C07F 7/0812 (2013.01); C09K 11/06 (2013.01); H01L 51/0067 (2013.01); H01L 51/0071 (2013.01); H01L 51/0072 (2013.01); H01L 51/0073 (2013.01); H01L 51/0085 (2013.01); H05B 33/14 (2013.01); H01L 51/5016 (2013.01); H01L 2251/5384 (2013.01);
Abstract
The present invention relates to a plurality of host materials and an organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host compounds, the organic electroluminescent device according to the present invention provides high efficiency and long lifespan.