Light-emitting device, lighting device, substrate, and manufacturing method of substrate

摘要

To provide a substrate which is light and has high reliability and high light extraction efficiency from an organic EL element. To provide a substrate which includes a protective layer in a resin layer, an uneven structure on a light incident surface, and an opening which surrounds the uneven structure and through which the protective layer is exposed. To provide a light-emitting device which includes a resin layer provided with an uneven structure on a light incident surface over a protective layer, and a light-emitting element in the protective layer and a counter substrate which are bonded with a sealant. The protective layer and the resin layer have a property of transmitting visible light. The light-emitting element includes a light-transmitting first electrode over a resin layer, a layer containing a light-transmitting organic compound over the first electrode, and a second electrode over the layer containing a light-transmitting organic compound.

主权项

1. A light-emitting device comprising:
a resin layer comprising an uneven structure at a top side of the resin layer; a protective layer over the resin layer; and a light-emitting element over the protective layer, the light-emitting element comprising a plurality of light-emitting regions which are separated from each other by partitions, wherein the uneven structure comprises projections each having a pitch, wherein each of the plurality of light-emitting regions overlaps with the projections, wherein each width of the plurality of light-emitting regions is smaller than the pitch, and wherein the partitions are positioned so as to overlap ends of the projections.