A light emitting device includes a first bonding pad configured to be mounted to a substrate, a first electrode electrically connected to the first bonding pad, a first conductive type semiconductor layer having a middle area disposed between two, opposing end areas, a second conductive type semiconductor layer disposed on the first conductive type semiconductor layer and connected to the first electrode; and a first contact portion and a plurality of second contact portions disposed on the first conductive type semiconductor layer, in which the first contact portion is disposed adjacent one end area of the first conductive type semiconductor layer, the second contact portions are disposed in the middle area of the first conductive type semiconductor layer, and the first bonding pad exposes at least one of the second contact portion.
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