Patent ID: 8455904
Filing Date: 2013-06-04
Classification: H01L

Abstract:
1. A light source, comprising: a light emitting diode (LED) structure, comprising an active layer disposed between a first doped semiconductor layer and a second doped semiconductor layer, the active layer having energy levels associated with light of a first wavelength; a grid electrode on the first doped semiconductor layer, the grid electrode defining open regions of a surface of the first doped layer; and a first plurality of light emitting elements positioned on the surface of the first doped semiconductor layer in the open regions, at least some of the light emitting elements being excited by non-radiative energy transfer from the active layer, the light emitting elements being capable of emitting light at a second wavelength different from the first wavelength; and a second plurality of light emitting elements disposed over at least some of the first plurality of light emitting elements, at least some of the second plurality of light emitting elements being excited by non-radiative energy transfer from at least some of the first plurality of light emitting elements.