| abstract |
A light-emitting element 100 comprising: a substrate 40, a sealing member 101 disposed opposite to the substrate 40, a concavo-convex structure layer 142, a first electrode 92, an organic layer 94, a second electrode 98, and an adhesive layer 103, the aforementioned The concave-convex structure layer 142, the first electrode 92, the organic layer 94, and the second electrode 98 are sequentially formed on the substrate 40, the adhesive layer 103 is located between the substrate 40 and the sealing member 101, and the concave-convex structure The outer edge 142c of the layer 142 is located between the inner edge 103a of the aforementioned adhesive layer 103 and the outer edge 103b of the aforementioned adhesive layer. Since the light-emitting element 100 has the uneven structure layer 142 functioning as a diffraction grating, the light extraction efficiency is high, and the light-emitting part is sealed with sufficient sealing performance, and the deterioration of the light-emitting part due to moisture and oxygen can be suppressed, so it has a long life. . |