Patent ID: 8785952

Claim:
A light emitting device package comprising a light emitting device, wherein the light emitting device includes: a support member; a light emitting structure including a first semiconductor layer disposed on the support member, a second semiconductor layer and an active layer between the first semiconductor layer and the second semiconductor layer; a first electrode disposed on the first semiconductor layer in a first region through which the first semiconductor layer is exposed; a second electrode disposed on the second semiconductor layer; an insulating layer disposed at least between the first electrode and the second electrode; a light transmittable electrode layer disposed between the second semiconductor layer and the second electrode; and a reflective layer between the light transmittable electrode layer and the second electrode, and the light emitting structure, wherein the first semiconductor layer is a different layer than the second semiconductor layer, the active layer includes at least one pair of a well layer and a barrier layer, and a band gap of the well layer is less than a band gap of the barrier layer, and wherein an area of an upper surface of the first electrode is in a range of 40% to 90% of an area of the second semiconductor layer, wherein the reflective layer is formed from an upper surface of the second semiconductor layer to an upper surface of the first semiconductor layer along a lateral surface of the second semiconductor layer and a lateral surface of the active layer, wherein the reflective layer includes at least a first layer having a first index of refraction and a second layer having a second index of refraction that is different from the first index of refraction, wherein the first layer and the second layer of the reflective layer are alternately and repeatedly stacked one above another, wherein the first layer comprises SiO 2 or Al 2 O 3 , wherein the second layer comprises TiO 2 , and wherein the second electrode is connected to the light transmittable electrode layer through an opening of the reflective layer.