Electro-luminescent polymers, their preparation and uses
AssigneeCambridge Display Technology Limited
InventorsCarl Towns, Richard O'Dell, Valerie Grand
Life of this patent
Estimating the term…
Abstract
An organic polymer comprising a conjugated backbone for transporting negative charge carriers and having a first band gap and at least one side unit pendent from the backbone for transporting positive charge carriers and having a second band gap, wherein the structure of the organic polymer is selected so that the first and second band gaps are distinct from one another in the polymer.
Claims24
An organic polymer comprising:
- a conjugated backbone for transporting negative charge carriers and having a first band gap;
- and
- at least one side unit pendent from the backbone for transporting positive charge carriers and having a second band gap,
- wherein the structure of the organic polymer is selected so that the first and second band gaps are distinct from one another in the polymer.
An organic polymer according to any one of the preceding claims, wherein the side unit is attached to the backbone via a C1-C10 alkyl group.
An organic polymer according to any one of the preceding claims comprising a homopolymer.
An organic polymer according to any one of the preceding claims for use in an optical device.
Dependencies are inferred from the claim text.