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:
Jun. 06, 2023
Filed:
Dec. 20, 2018
Applicant:
Sumitomo Chemical Company Limited, Tokyo, JP;
Inventor:
Kiran Kamtekar, Godmanchester, GB;
Assignee:
Sumitomo Chemical Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/06 (2006.01); H01L 51/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
C09K 11/06 (2013.01); H01L 51/0043 (2013.01); H01L 51/0067 (2013.01); C09K 2211/1466 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5092 (2013.01);
Abstract
A composition comprising a light-emitting material having a photoluminescent spectrum with a peak wavelength of more than 600 nm and material comprising a group of formula (I): wherein 1 2 3 4 Ar, Ar, Arand Arare each independently a C6-20 aryl group which is unsubstituted or substituted with one or more substituents, Arindependently in each occurrence is a heteroarylene group or a Carylene group which is unsubstituted or substituted with one or more substituents, and m is 0, 1, 2 or 3. The composition may be used in an organic light-emitting device.