Patent ID: 8963178
Filing Date: 2015-02-24
Classification: H01L

Abstract:
1. A light emitting diode chip, comprising: a substrate comprising a first surface and a second surface: a light emitting structure arranged on the first surface of the substrate, the light emitting structure comprising an active layer arranged between a first conductive-type semiconductor layer and a second conductive-type semiconductor layer; a distributed Bragg reflector arranged on the second surface of the substrate, the distributed Bragg reflector to reflect light emitted from the light emitting structure; and a metal layer arranged on the distributed Bragg reflector, wherein the distributed Bragg reflector comprises a reflectivity of at least 90% for light of a first wavelength in a blue wavelength range, light of a second wavelength in a green wavelength range, and light of a third wavelength in a red wavelength range, and wherein the distributed Bragg reflector comprises a reflectivity of 98% or more at an incident angle of 0° for light of all wavelengths in a full wavelength range of 400 nm to 700 nm.