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Light emitting device and fabrication method thereof

  • US 20050141240A1
  • Filed: 09/30/2004
  • Published: 06/30/2005
  • Est. Priority Date: 09/30/2003
  • Status: Abandoned Application
First Claim
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1. A light emitting device comprising:

  • a light emitting device structure including a light emitting layer and having a light extraction surface; and

    a layer principally composed of an inorganic material different from a material constituting said light extraction surface, and formed on said light extraction surface of said light emitting device structure, wherein said layer principally composed of the inorganic material is optically transparent to a luminescent wavelength of said light emitting device structure, and has unevenness on a surface opposite to said light extraction surface, and said layer principally composed of the inorganic material includes a plurality of layers having different refractive indices, the refractive index of a layer on the side of said light extraction surface being greater than the refractive indice of another layer.

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