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:
Jan. 31, 2017
Filed:
Dec. 20, 2013
Applicants:
Cambridge Display Technology, Ltd., Cambrdgeshire, GB;
Sumitomo Chemical Company Limited, Tokyo, JP;
Inventors:
Annette Steudel, Cambridgeshire, GB;
Florence Bourcet, Cambridgeshire, GB;
Kiran Kamtekar, Cambridgeshire, GB;
Assignees:
Cambridge Display Technology, Ltd., Godmanchester, GB;
Sumitomo Chemical Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 51/54 (2006.01); C09K 11/06 (2006.01); H01L 51/00 (2006.01); H05B 33/10 (2006.01); C08G 61/12 (2006.01); C09D 179/04 (2006.01); C08G 73/06 (2006.01); C08K 5/00 (2006.01); C08L 65/00 (2006.01); H01L 51/50 (2006.01);
U.S. Cl.
CPC ...
H01L 51/0043 (2013.01); C08G 61/12 (2013.01); C08G 61/122 (2013.01); C08G 73/0644 (2013.01); C08K 5/0091 (2013.01); C09D 179/04 (2013.01); C09K 11/06 (2013.01); H01L 51/0039 (2013.01); H01L 51/0085 (2013.01); H05B 33/10 (2013.01); C08G 2261/135 (2013.01); C08G 2261/148 (2013.01); C08G 2261/1412 (2013.01); C08G 2261/1624 (2013.01); C08G 2261/3142 (2013.01); C08G 2261/3162 (2013.01); C08G 2261/411 (2013.01); C08G 2261/95 (2013.01); C08L 65/00 (2013.01); C09K 2211/1466 (2013.01); H01L 51/009 (2013.01); H01L 51/5016 (2013.01);
Abstract
A composition comprising a polymer and a phosphorescent material wherein the polymer comprises repeat units of formula (I): wherein A is a heteroaryl group containing a nitrogen atom, and A may be unusubstituted or substituted with one or more substituents;