Patent ID: 6066357
Filing Date: 2000-05-23
Classification: H01L

Abstract:
A method of making a full-color organic light-emitting display having an array of light-emitting pixels arranged in intersecting columns and rows with each column having a set of three subpixel columns designated for emitting one of red, green, and blue light respectively, the method comprising the steps of:a) providing a substrate;b) providing a first set of addressing electrodes over the substrate;c) forming an organic hole-transporting layer over the first set of addressing electrodes and over the substrate;d) forming an organic light-emitting layer over the hole-transporting layer and having a light-emitting material selected to produce blue light;e) forming a dopant layer over the light-emitting layer and patterning such dopant layer to form color subpixels which comprise a pixel wherein the colored subpixels are formed by diffusing the patterned dopant layer into the light-emitting layer;f) forming an organic electron-transporting layer over the doped light-emitting layer; andg) forming a second set of addressing electrodes over the electron-transporting layer so that the color subpixels can be individually addressed.