PHOTONIC DEVICE FOR GENERATING WHITE LIGHT OR COLOR LIGHT

摘要

PROBLEM TO BE SOLVED: To provide a single phosphor layer photonic device for generating white light or color light.SOLUTION: The photonic device generates a full spectrum of lights including white light. The device includes two or more LEDs grown on a substrate, each generating light of a different wavelength and separately controlled. A light-emitting structure is formed on the substrate and apportioned into the two or more LEDs by etching to separate the light-emitting structure into different portions. At least one of the LEDs is coated with a phosphor material, so that different wavelengths of light are generated by the LEDs while the same wavelength of light is emitted from the light-emitting structure.