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:
Mar. 27, 2018
Filed:
Jul. 14, 2014
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0085 (2013.01); C09K 11/06 (2013.01); H01L 51/0035 (2013.01); H01L 51/0039 (2013.01); H01L 51/0043 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1014 (2013.01); C09K 2211/1029 (2013.01); C09K 2211/1059 (2013.01); C09K 2211/185 (2013.01); H01L 51/5016 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01);
Abstract
A composition is provided containing a first phosphorescent compound (DB) having an emission spectrum whose maximum peak wavelength is from 400 nm to less than 480 nm and having a dendron and a second phosphorescent compound (DGR) having an emission spectrum whose maximum peak wavelength is from 480 nm to less than 680 nm and having a dendron.