Patent ID: 8492787
Filing Date: 2013-07-23
Classification: H01L

Abstract:
1. A light-emitting diode device comprising: an epitaxial structure comprising a light-emitting layer generating light having an intensity distribution along the growth direction of the epitaxial structure, wherein the light-emitting layer comprises a multiple quantum well structure, and the max value of the intensity occurs in a portion of the epitaxial structure other than the light-emitting layer; a first-type conductivity confining layer and a second-type conductivity confining layer formed on the upper surface and the lower surface of the light-emitting layer respectively; and a first-type conductivity cladding layer and a second-type conductivity cladding layer formed on the first-type conductivity confining layer and below the second-type conductivity confining layer respectively, the thickness ratio of the first-type conductivity confining layer and the second-type conductivity confining layer is ½˜ 1/200 or 2-200, and the light emitting diode emits an incoherent light.