Patent ID: 6891327

Claim:
An electroluminescent device comprising: a substrate, a first and a second electrode layer, and one or more functional layers disposed between the first and the second electrode layer to form at least one electroluminescent area, and a relief pattern comprising at least an overhanging section and, erected at distance of said overhanging section, an accompanying positively-sloped section disposed between said overhanging section and said electroluminescent area and extending along a side or sides thereof; said overhanging section having a negatively-sloped section that defines a capillary channel; said first and second electrode layers, said substrate, and said one or more functional layers being generally parallel, said first electrode layer being closest to said substrate separated by a first boundary, said one or more functional layers being next closest to said substrate and said second electrode layer being furthest from said substrate separated from said one or more functional layers by a second boundary; said positively-sloped section presenting a positively-sloped surface laterally adjacent said one or more functional layers and crossing both said first and second boundaries.