An organic electroluminescent device comprising: a substrate; a plurality of organic electroluminescent elements provided over the substrate and defining an operating region; a first wiring pattern provided over the substrate at a position closer to an edge portion of the substrate than the operating region; a first electrode provided in a layer different from the first wiring pattern, at least partially overlapping the first wiring pattern in a region, and arranged for supply of electrical energy to the plurality of organic electroluminescent elements in common; a conductive section provided in the region in which the first wiring pattern overlaps the first electrode, and arranged to electrically connect the first wiring pattern to the first electrode, a second electrode disposed opposite from the first electrode with a first element that is one of the plurality of organic electroluminescent elements interposed between the first electrode and the second electrode, the second electrode being interposed between the first element and the substrate, and arranged for the supply of the electrical energy to the first element; a driving element electrically connected to the first element; a second wiring pattern electrically connected to the second electrode through the driving element; a third wiring pattern supplying a data signal for driving the first element; and a terminal provided between a first side of the substrate and the operating region and coupled to the third wiring pattern, characterised in that: the first wiring pattern and the conductive section extend continuously around the operating region, while having an opening facing said first side of the substrate; the first wiring pattern has a plurality of layers including a first layer and second layer, the first layer being disposed between the substrate and the second layer; and the third wiring pattern extends from the terminal through the opening toward the operating region. a substrate; a plurality of organic electroluminescent elements provided over the substrate and defining an operating region; a first wiring pattern provided over the substrate at a position closer to an edge portion of the substrate than the operating region; a first electrode provided in a layer different from the first wiring pattern, at least partially overlapping the first wiring pattern in a region, and arranged for supply of electrical energy to the plurality of organic electroluminescent elements in common; a conductive section provided in the region in which the first wiring pattern overlaps the first electrode, and arranged to electrically connect the first wiring pattern to the first electrode, a second electrode disposed opposite from the first electrode with a first element that is one of the plurality of organic electroluminescent elements interposed between the first electrode and the second electrode, the second electrode being interposed between the first element and the substrate, and arranged for the supply of the electrical energy to the first element; a driving element electrically connected to the first element; a second wiring pattern electrically connected to the second electrode through the driving element; a third wiring pattern supplying a data signal for driving the first element; and a terminal provided between a first side of the substrate and the operating region and coupled to the third wiring pattern, characterised in that: the first wiring pattern and the conductive section extend continuously around the operating region, while having an opening facing said first side of the substrate; the first wiring pattern has a plurality of layers including a first layer and second layer, the first layer being disposed between the substrate and the second layer; and the third wiring pattern extends from the terminal through the opening toward the operating region. the first wiring pattern and the conductive section extend continuously around the operating region, while having an opening facing said first side of the substrate; the first wiring pattern has a plurality of layers including a first layer and second layer, the first layer being disposed between the substrate and the second layer; and the third wiring pattern extends from the terminal through the opening toward the operating region.