LIGHT EMITTING DIODE OF AC DRIVE TYPE

摘要

PROBLEM TO BE SOLVED: To provide a light emitting diode of an AC drive type comprising an electrode structure capable of uniformly dispersing current flowing at operation of the light emitting diode and improving light efficiency.SOLUTION: A light emitting diode of an AC drive type comprises: a substrate; and at least one series array where a plurality of light emitting cells is linked in series on the substrate. The light emitting cell comprises: a lower semiconductor layer; an upper semiconductor layer; an active layer; an upper electrode layer; an upper electrode pad formed on the upper electrode layer; and a lower electrode. The upper electrode pad and the lower electrode are disposed on diagonal corner portions, respectively. Each light emitting cell is arranged such that arrangement of the upper electrode pad and the lower electrode has a mutually symmetrical structure with respect to an adjacent light emitting cell, respectively.