Formulation for depositing a light-emitting polymer layer
AssigneesCambridge Display Technology Limited, Seiko Epson Corporation
InventorIlaria Grizzi
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Abstract
The present invention provides formulations which facilitate the direct deposition of patterned polymer films. In particular, the present invention provides a formulation with which polymer films which exhibit improved emission can be uniformly deposited, particularly in the context of relatively high molecular weight polymers with intrinsically rigid conjugated systems. By way of example, a formulation comprising a conjugated polymer dissolved in a solvent comprising at least one substance selected from the group consisting of terpenes and polyalkylated aromatic compounds are demonstrated.
Claims22
A formulation for depositing a polymer layer in a light emitting device, the formulation comprising a conjugated polymer dissolved in a solvent, the solvent consisting of at least one substance selected from the group consisting of terpenes and polyalkylated aromatic compounds.
A method of depositing a polymer layer by supplying a solution processible formulation via a plurality of elongate bores onto a substrate, wherein the formulation comprises a conjugated polymer dissolved in a solvent, the solvent comprising at least one substance selected from the group consisting of terpenes and polyalkylated aromatic compounds.
Dependencies are inferred from the claim text.