Polymer and organic electronic device

US9559307B2 · kind B2 · utility

Assignees

• Cambridge Display Technology Limited · GB
• SUMITOMO CHEMICAL COMPANY, LIMITED · JP

Inventors

• Annette Steudel · Felton, GB
• Florence Bourcet · Godmanchester, GB
• Kiran Kamtekar · Godmanchester, GB

Key dates

• Filing date: Dec 20, 2013
• Grant date: Jan 31, 2017
• Expiry date: Apr 2, 2035

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10K2101/10
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

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;