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LIGHT-EMITTING DEVICE, LIGHT-EMITTING DEVICE PACKAGE AND LIGHTING SYSTEM

  • US 20110233589A1
  • Filed: 03/24/2011
  • Published: 09/29/2011
  • Est. Priority Date: 03/25/2010
  • Status: Active Grant
First Claim
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1. A light-emitting device comprising:

  • a substrate;

    a light-emitting structure on the substrate, the light-emitting structure including a first semiconductor layer, an active layer and a second semiconductor layer;

    a light-transmitting electrode layer on the second semiconductor layer; and

    a first reflective layer on the light-transmitting electrode layer,wherein the first reflective layer comprises a first layer having a first index of refraction and a second layer having a second index of refraction different from the first index of refraction.

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