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:
Aug. 27, 2019
Filed:
Jan. 16, 2013
Sumitomo Chemical Company Limited, Tokyo, JP;
Cambridge Display Technology Limited, Godmanchester, GB;
Jonathan Pillow, Godmanchester, GB;
Richard J. Wilson, Godmanchester, GB;
Sophie Barbara Heidenhain, Lower Cambourne, GB;
Ruth Pegington, Godmanchester, GB;
Alexander Doust, Godmanchester, GB;
Richard Owoare, Cambridge, GB;
Sumitomo Chemical Company Limited, Tokyo, JP;
Cambridge Display Technology Limited, Godmanchester, GB;
Abstract
An organic electronic device comprising an anode, a cathode, a semiconducting layer between the anode and the cathode and a hole transporting layer between the anode and the semiconducting layer, the hole-transporting layer comprising a co-polymer comprising repeat units of formula (I) and one or more co-repeat units: (I) wherein: Arindependently in each occurrence represents a fused aryl or fused heteroaryl group that may be unsubstituted or substituted with one or more substituents; Arrepresents an aryl or heteroaryl group that may be unsubstituted or substituted with one or more substituents; R independently in each occurrence represents a substituent; and m is 1 or 2, preferably 1; and each Aris directly bound to an aromatic or heteroaromatic group of a co-repeat unit.