METHOD OF MANUFACTURING A DISPLAY

摘要

A method for the manufacture of an organic light-emissive display comprises: providing a substrate (102) comprising a first electrode layer (106) and a bank structure (112) defining a plurality of wells, depositing a conductive organic layer (128a) over the first electrode; depositing an organic light-emissive layer (108b) over the conductive organic layer, and depositing a second electrode (110) over the organic light-emissive layer, wherein the conductive organic layer is deposited by ink jet printing a composition comprising poly(ethylene dioxythiophene) (PEDOT) doped with a polyanion, wherein the polyanion has a molecular weight of equal to or less than 3OkDa measured relative to polystyrene molecular weight standards using gel-permeation chromatography, the viscosity of the composition being equal to or less than 10 mPa.s, and the solids content of the composition being equal to or less than 5 wt % based on the volume of the composition. The composition may include an optional solvent or other additive.