| 摘要 |
Provided are a light emitting device, an electrod structure, a light emitting device package, and a lighting system. The light emitting device includes a conductive layer, an electrode, a light emitting structure layer disposed between the electrode and the conductive layer and comprising a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, and a light guide layer between the first semiconductor layer and the electrode. |
