Patent ID: 7915620

Claim:
A light-emitting device, comprising: an EL (Electro-Luminescence) layer including a first semiconductor layer, a second semiconductor layer, and an active layer, the first semiconductor layer having a first conductivity type that is one of n type and p type, the second semiconductor layer having a second conductivity type that is opposite to the first conductivity type, the active layer being between the first semiconductor layer and the second semiconductor layer; and a heat dissipation layer that has the first conductivity type and is bonded to a side of the EL layer closer to the second semiconductor layer than the first semiconductor layer to reduce heat, wherein, the EL layer further includes a conductive layer for reducing an electrical resistance due to a bias in a reverse direction in the second semiconductor layer and the heat dissipation layer, the conductive layer being disposed between the second semiconductor layer and the heat dissipation layer.