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Transparent light emitting diodes

DC
  • US 8,294,166 B2
  • Filed: 12/11/2007
  • Issued: 10/23/2012
  • Est. Priority Date: 12/11/2006
  • Status: Active Grant
First Claim
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1. A device, comprising:

  • a light emitting diode (LED) including a plurality of III-nitride layers, wherein;

    the plurality of the III-nitride layers include an n-type layer, a p-type layer, and an active region between the n-type layer and the p-type layer that emits light, andan n-type side of the LED is on a front side of the LED, and a p-type side of the LED is on a back side of the LED opposite the front side;

    a transparent substrate or sub-mount attached to the p-type side of the III-nitride layers only; and

    one or more shaped optical elements combined with the LED and the transparent substrate or sub-mount, wherein the shaped optical elements and the transparent substrate or sub-mount extract light from the LED, such that the light is extracted through at least the front side and the back side of the LED.

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