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. 24, 2023
Filed:
Jul. 20, 2016
Applicant:
Rohm and Haas Electronic Materials Korea Ltd., Cheonan, KR;
Inventors:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10K 85/60 (2023.01); C09K 11/06 (2006.01); C07D 491/147 (2006.01); C07D 403/04 (2006.01); C07D 487/04 (2006.01); C07D 401/14 (2006.01); C07D 413/04 (2006.01); C07D 413/14 (2006.01); C07D 401/04 (2006.01); C07D 471/04 (2006.01); C07D 405/04 (2006.01); C07D 409/14 (2006.01); C07D 403/14 (2006.01); H10K 50/11 (2023.01); C07D 405/14 (2006.01);
U.S. Cl.
CPC ...
H10K 85/6572 (2023.02); C07D 401/04 (2013.01); C07D 401/14 (2013.01); C07D 403/04 (2013.01); C07D 403/14 (2013.01); C07D 405/14 (2013.01); C07D 409/14 (2013.01); C07D 413/04 (2013.01); C07D 413/14 (2013.01); C07D 471/04 (2013.01); C07D 487/04 (2013.01); C07D 491/147 (2013.01); C09K 11/06 (2013.01); H10K 85/654 (2023.02); H10K 85/657 (2023.02); H10K 85/6574 (2023.02); H10K 85/6576 (2023.02); C09K 2211/1018 (2013.01); H10K 50/11 (2023.02); H10K 85/636 (2023.02);
Abstract
The present invention relates to a luminescent material for delayed fluorescence and an organic electroluminescent device comprising the same. By using the luminescent material for delayed fluorescence according to the present invention, an organic electroluminescent device having long lifespan, low driving voltage, excellent color purity, and significantly improved luminous efficiency such as current efficiency is provided.