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:
Aug. 18, 2020
Filed:
Feb. 02, 2016
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Inventors:
Bitnari Kim, Anyang, KR;
Sang-Hee Cho, Suwon, KR;
Hee-Ryong Kang, Seoul, KR;
Jin-Ri Hong, Bucheon, KR;
Assignee:
Rohm and Haas Electronic Materials Korea Ltd, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C09K 11/06 (2006.01); C07D 209/80 (2006.01); C07D 209/86 (2006.01); C07D 403/10 (2006.01); C07D 487/04 (2006.01); C07D 487/06 (2006.01); C09K 11/02 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 209/80 (2013.01); C07D 209/86 (2013.01); C07D 403/10 (2013.01); C07D 487/04 (2013.01); C07D 487/06 (2013.01); C09K 11/025 (2013.01); C09K 11/06 (2013.01); H01L 51/001 (2013.01); H01L 51/0052 (2013.01); H01L 51/0058 (2013.01); H01L 51/0067 (2013.01); H01L 51/0074 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1088 (2013.01); C09K 2211/1092 (2013.01); C09K 2211/185 (2013.01); H01L 51/0085 (2013.01); H01L 51/5016 (2013.01); H01L 2251/5384 (2013.01);
Abstract
The present disclosure relates to a plurality of host materials and organic electroluminescent device comprising the same. By comprising a specific combination of a plurality of host materials, the organic electroluminescent device of the present disclosure can show long lifespan while maintaining high luminous efficiency.