Patent ID: 7002294

Claim:
A method for protecting an OLED device comprising: (a) providing an OLED device on a substrate, said OLED device having an active region, said active region comprising an anode layer, a cathode layer, and a light-emitting layer disposed between the anode layer and the cathode layer; (b) depositing a first protective layer of a first material over the active region, said first material comprising an organometallic material; (c) depositing a second protective layer over the first protective layer, the second protective layer comprising multiple sub-layers that further comprise an alternating series of two or more first polymeric sub-layers and two or more 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 wherein the first protective layer protects the active region from damage caused by direct application of the second protective layer.