Patent ID: 8268650

Claim:
A process for manufacturing sealed organic electroluminescence devices, the sealed organic electroluminescence device comprising: a substrate, a sealing member bonded to the substrate, the sealing member having an opening on the side bonded with the substrate, and an organic electroluminescence device formed on the substrate, the device being accommodated in a closed space defined by the substrate and the sealing member, the device comprising an anode, an organic electroluminescence layer including at least one emitting layer, and a cathode; the process comprising: a step (A) of forming the organic electroluminescence layer on a region of an anode-mounted substrate comprising the substrate and the anode, the region including at least a bonding region in which the sealing member will be bonded and a region which is found inward the bonding region, a step (B) of removing an area of the organic electroluminescence layer on the bonding region by applying plasma by a remote plasma method in a manner such that the plasma is applied to the area so as to draw substantially the same profile as the bonding region to expose the bonding region, a step (C) of forming the cathode on the organic electroluminescence layer to complete the organic electroluminescence device, and a step (D) of bonding the sealing member to the exposed bonding region.