A light-emitting diode includes a substrate, a first semiconductor layer above the substrate, an active layer above the first semiconductor layer, a second semiconductor layer above the active layer, wherein the active layer is between the first semiconductor layer and the second semiconductor layer a trench penetrating through the second semiconductor layer and the active layer to expose the first semiconductor layer a first electrode disposed at a bottom of the trench, wherein the first electrode includes at least one first finger, an insulating layer covering the first electrode, and a second electrode including at least one second finger on the insulating layer, wherein the second finger overlaps with the first finger and the second finger has a width smaller than that of the trench.