Patent ID: 6765351
Filing Date: 2004-07-20
Classification: H01L

Abstract:
A protected OLED device comprising:(a) a substrate; (b) an active region positioned on said substrate, said active region comprising an anode layer, a cathode layer and a light-emitting layer disposed between the anode layer and the (c) a first protective layer of a first material disposed over the active region, said first material comprising an organometallic material; and (d) a second protective layer disposed over the first protective layer, wherein said second protective layer comprises multiple sub-layers that further comprise an alternating series of two or more first polymeric sub-layers and two or mere first high density sub-layers, wherein said multiple sub-layers comprise at least one sub-layer of a second material and at least one sub-layer of a third material, and wherein said first, second and third materials differ from one another.