Patent ID: 8158987

Claim:
A light-emitting diode possessing a transparent substrate and a light-emitting layer made of a compound semiconductor, wherein an area (A) of a light-extracting surface having formed thereon a first electrode and a second electrode differing in polarity from the first electrode, an area (B) of the light-emitting layer formed approximate to the light-extracting surface, and an area (C) of a back surface of the light-emitting diode falling on a side opposite a side for forming the first electrode and the second electrode are so related as to satisfy a relation of formula A>C>B, the transparent substrate possesses a side face comprising a first side face approximate to the light-emitting layer, and a second side face approximate to a back surface of the transparent substrate, and the first side face has an angle of inclination, with respect to a first direction being substantially perpendicular to the back surface of the transparent substrate, smaller than an angle of inclination of the second side face, with respect to the first direction.