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Light emitting diodes with light filters

  • US 8,916,890 B2
  • Filed: 03/19/2008
  • Issued: 12/23/2014
  • Est. Priority Date: 03/19/2008
  • Status: Active Grant
First Claim
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1. A light emitting diode (LED) chip comprising:

  • an LED layer capable of emitting light of a first wavelength;

    a light conversion layer on the LED layer capable of converting at least a portion of the light of a first wavelength to light of a second wavelength;

    a filter layer between the LED layer and the light conversion layer that is transmissive to light of the first wavelength and reflective to light of the second wavelength, the filter layer being directly on at least a portion of the LED layer; and

    a pedestal in electrical contact with the LED layer and extending through both the filter layer and the light conversion layer, wherein a top surface of the pedestal is co-planar with a top surface of the light conversion layer.

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