Patent ID: 9508959
Filing Date: 2016-11-29
CPC Classification: H01L

Claim Text:
1. An organic EL device comprising: an organic EL element in which a first electrode layer, an organic light emitting layer, and a second electrode layer are stacked on one of principal surfaces of a polygonal transparent substrate; an emission area that emits light during operation and that is observable when the transparent substrate is viewed in a planar view, an inorganic sealing layer, an adhesive layer, and a heat-conductive sealing layer being stacked on the organic EL element including at least the emission area; and a current carrying area that is provided outside the emission area and along a part or whole of an outer edge of the emission area and that is observable when the transparent substrate is viewed in a planar view, wherein a heat-conductive sealing stacked layer structure is formed in the current carrying area, the first electrode layer that is extended from the emission area into the current carrying area along a plane of the transparent substrate, an electroconductive layer having a heat conductivity larger than that of the first electrode layer, the inorganic sealing layer, the adhesive layer, and the heat-conductive sealing layer being stacked in this order so as to be in contact with each other in the heat-conductive sealing stacked layer structure, and the heat-conductive sealing stacked layer structure having a linear or planar shape is located near one of or all the sides of the transparent substrate, and extended along each corresponding side, wherein in the current carrying area, the first electrode layer and the electroconductive layer are electrically connected through a groove that is configured in the organic light emitting layer, and in at least a part of the current carrying area, the organic light emitting layer is interposed between the first electrode layer and the electroconductive layer outside an area of the groove.