LIGHT EMITTING DEVICE

摘要

A light emitting device according to the embodiment of the present invention comprises: a substrate; and a light emitting structure which is located on the substrate and includes a first semiconductor layer, an active layer, and a second semiconductor layer. The first semiconductor layer includes a first layer, a second layer, and a third layer which are arranged in a direction which becomes closer to the active layer. The first layer has an island shape. The Al content of the first layer, the second layer, and the third layer are different.