Patent ID: 6783417
Filing Date: 2004-08-31
Classification: G01N,H01L

Abstract:
A method of depositing a multi-color light emitting layer over a transparent substrate used in a display device, comprising the steps of:(a) depositing a first conductive layer over the transparent substrate; (b) depositing a hole transport layer over the conductive layer; (c) depositing a first light emitting material over one portion of the hole transport layer using a flexographic mat, the relief portion of which has a pattern corresponding to the portion of the hole transport layer being covered by the first light emitting material being deposited; (d) depositing a second light emitting material over another portion of the hole transport layer using a flexographic mat, the relief portion of which has a pattern corresponding to the portion of the hole transport layer being covered by the second light emitting material being deposited; and (e) depositing a second conductive layer over the first and second light emitting materials.