Patent ID: 8188493

Claim:
A light emitting diode, comprising: a substrate, comprising a first loop region and a second loop region; a first doped layer, disposed on the substrate; a first electrode and a second electrode, disposed between the first doped layer and the substrate, wherein the first electrode and the second electrode are electrically connected to the first doped layer, and a pattern of the first electrode is disconnected from a pattern of the second electrode; an active layer, disposed on the first doped layer, wherein the active layer corresponds to the first loop region and the second loop region, and the active layer is a complete surface film covering the first loop region and the second loop region; a second doped layer, disposed on the active layer; and a third electrode and a fourth electrode, disposed on the second doped layer, wherein the third electrode and the fourth electrode are electrically connected to the second doped layer, and a pattern of the third electrode is disconnected from a pattern of the fourth electrode, wherein the first electrode, the second electrode, the third electrode, and the fourth electrode respectively comprise a contact pad, the contact pads of the first electrode and the second electrode are disposed on one side of the light emitting diode, and the contact pads of the third electrode and the fourth electrode are disposed on an opposite side of the light emitting diode; wherein the first electrode and the third electrode correspond to the first loop region, the second electrode and the fourth electrode correspond to the second loop region, and the first electrode, the second electrode, the third electrode, and the fourth electrode are disconnected from each other.