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:
Oct. 22, 2019
Filed:
Nov. 01, 2016
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Inventors:
Young-Mook Lim, Yongin, KR;
Bitnari Kim, Suwon, KR;
Assignee:
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/00 (2006.01); C07D 209/86 (2006.01); C07D 403/10 (2006.01); C07D 495/04 (2006.01); C07D 491/048 (2006.01); C07D 209/08 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0072 (2013.01); C07D 209/08 (2013.01); C07D 209/86 (2013.01); C07D 403/10 (2013.01); C07D 491/048 (2013.01); C07D 495/04 (2013.01); H01L 51/0059 (2013.01); H01L 51/0067 (2013.01); H01L 51/5016 (2013.01); H01L 2251/5384 (2013.01);
Abstract
The present disclosure relates to a host material and an organic electroluminescent device comprising the same. By using a specific combination of two or more host compounds according to the present disclosure, the organic electroluminescent device of the present disclosure has luminous efficiency at least equivalent to or higher than conventional devices and has lifespan better than conventional devices.