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Light emitting diode with Bragg reflector

  • US 10,038,121 B2
  • Filed: 02/17/2016
  • Issued: 07/31/2018
  • Est. Priority Date: 02/17/2015
  • Status: Active Grant
First Claim
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1. A light emitting diode, comprising:

  • a first-type semiconductor layer;

    an emitting layer, configured to emit a light beam, the light beam has a peak wavelength in a light emitting wavelength range;

    a second-type semiconductor layer, wherein the emitting layer is located between the first-type semiconductor layer and the second-type semiconductor layer;

    a first electrode electrically connected to the first-type semiconductor layer;

    a second electrode electrically connected to the second-type semiconductor layer; and

    a Bragg reflector structure, the first electrode and the second electrode are both located on a same side of the Bragg reflector structure, and a reflectance of the Bragg reflector structure is greater than or equal to 95% in a reflective wavelength range at least covering 0.8(X) nm to 1.8(X) nm, wherein X is the peak wavelength of the light emitting wavelength range,wherein the Bragg reflector structure comprises a plurality of primary stacked layers and at least one buffer stacked layer, the at least one buffer stacked layer is located between the two adjacent primary stacked layers,wherein the Bragg reflector structure further comprises at least one repair stacked layer, the at least one repair stacked layer is adjacent to one of the primary stacked layer and the at least one buffer stacked layer.

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