Patent ID: 8487324
Filing Date: 2013-07-16
Classification: H01L

Abstract:
1. A light-emitting diode, comprising: an epitaxial substrate including a base member, and a plurality of spaced apart first light-transmissive members each of which is formed on and tapers from an upper surface of said base member, and each of which is made of a first light-transmissive material having a refractive index lower than that of said base member; a light-emitting unit including a first-type semiconductor layer that is formed on said epitaxial substrate, a light-emitting layer that is formed on said first-type semiconductor layer opposite to said epitaxial substrate, and a second-type semiconductor layer that is formed on said light-emitting layer opposite to said first-type semiconductor layer; and an electrode unit electrically connected to said light-emitting unit; wherein said first-type semiconductor layer has a bottom film covering said first light-transmissive members, a plurality of spaced apart second light-transmissive members formed on a top face of said bottom film, and a top film formed on said bottom film to cover said second light-transmissive members; and wherein each of said second light-transmissive members tapers from said top face of said bottom film, and is made of a second light-transmissive material having a refractive index different from that of said bottom and top films.