LIGHT EMITTING DEVICE INCLUDING A PHOTONIC CRYSTAL AND A LUMINESCENT CERAMIC
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United States of America Patent
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app pub date -
Dec 2, 2011
filing date -
Jun 3, 2004
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Abstract
A semiconductor structure including a light emitting layer disposed between an n-type region and a p-type region and a photonic crystal formed within or on a surface of the semiconductor structure is combined with a ceramic layer which is disposed in a path of light emitted by the light emitting layer. The ceramic layer is composed of or includes a wavelength converting material such as a phosphor.
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