Patent ID: 8063559

Claim:
An illuminating or image-display panel, comprising an array of organic light-emitting diodes supported by a substrate, at least one array of lower electrodes in contact with the substrate and an array of upper electrodes, in which each diode comprises an organic electroluminescent layer which is interposed between one of said lower electrodes and one of said upper electrodes, wherein said upper electrodes are transparent to the light emitted by this diode, in which at least one of said upper electrodes is common to a plurality of diodes and comprises a first conducting layer in contact with the organic electroluminescent layer, a second conducting layer overlaying the first conducting layer and a transparent intermediate buffer layer interposed between the first and second conducting layers, wherein, for each of said at least one upper electrode common to a plurality of diodes, said intermediate buffer layer is pierced by windows that provide direct contact surfaces for direct contact between the first and second conducting layers of this at least one upper common electrode, wherein the direct contact surfaces of said first conducting layer corresponds to an opposite surface of said first conducting layer that is not in contact with the organic electroluminescent layer.