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:
May. 07, 1996
Filed:
Mar. 18, 1994
Applicant:
Inventors:
Andrew B Holmes, Cambridge CB2 2AL, GB;
Richard H Friend, Cambridge, GB;
Stephen C Moratti, Cambridge CB4 1JQ, GB;
Derek R Baigent, Cambridge, GB;
Donald C Bradley, Totley, Sheffield, GB;
Raoul Cervini, Cambridge CB4 3AT, GB;
Neil C Greenham, Cambridge CB4 1NE, GB;
Peter J Hamer, Cambridge CB4 2PR, GB;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257 40 ; 257 13 ; 257103 ; 313504 ;
Abstract
This invention provides semiconductive conjugated polymers incorporating electron-withdrawing groups for use in electroluminescent devices, methods for their manufacture, and electroluminescent devices incorporating the polymers. The electron-withdrawing group is conjugatively linked to the polymer chain and is selected so that the polymer exhibits electroluminesence upon application of an electric field to a layer thereof.