Patent ID: 7833569

Claim:
A method for manufacturing an organic electroluminescent device, comprising: providing a substrate comprising of sub-pixels that includes a first light emitting area for a first color, a second light emitting area for a second color and a third light emitting area for a third color; forming a first electrode and a first carrier transport layer in the first light emitting area, the second light emitting area and the third light emitting area; forming a first hydrophobic material on the first carrier transport layer of the second and third light emitting areas, while leaving the first carrier transport layer of the first light emitting area exposed; forming a first hydrophilic material on the first carrier transport layer of the first light emitting area; forming a first color light emitting layer from a first hydrophilic solution on the first hydrophilic material; forming a second color light emitting layer in the second light emitting area; forming a third color light emitting layer in the first, second and third light emitting areas or in the third light emitting area; forming a second carrier transport layer on the third light emitting area; and forming a second electrode on the second carrier transport layer.