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:
Sep. 27, 2005
Filed:
Sep. 26, 2001
Andrew Holmes, Cambridge, GB;
Rainer Martin, Basel, CH;
Ian Rees, Cambridge, GB;
Cedric Fischmeister, Rennes, FR;
Yuguang MA, Changchun, CN;
Franco Cacialli, Cambridge, GB;
Andrew Holmes, Cambridge, GB;
Rainer Martin, Basel, CH;
Ian Rees, Cambridge, GB;
Cedric Fischmeister, Rennes, FR;
Yuguang Ma, Changchun, CN;
Franco Cacialli, Cambridge, GB;
Cambridge Display Technology Limited, Cambridgeshire, GB;
Abstract
The invention relates to optical devices comprising a substrate and at least one semiconductive polymer supported by said substrate, wherein said semiconductive polymer is a copolymer in which one of the repeat units is a group of formula (I) or a homopolymer in which the repeat unit is a group of formula (I):wherein: A and B are the same or different and each comprises wholly or partially an aryl moiety or a heteroaryl moiety, said moiety in A being fused to the bond a-b and said moiety in B being fused to the bond c-d, and X is a linking unit, X being such that there is a torsion angle of at least 5° between the bond a-b and the bond c-d about the bond b-d. The invention also relates to semiconductive polymers, monomers for preparing same, and methods for preparing random statistical conjugated polymers.