Light-emitting device
The invention discloses a light-emitting device which is characterized in that a photon crystal is formed on a light-emitting wafer, and then a fluorescence layer is covered, so that rays ejected from the light-emitting wafer is scattered by the photon crystal and then reacts with the fluorescence l...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a light-emitting device which is characterized in that a photon crystal is formed on a light-emitting wafer, and then a fluorescence layer is covered, so that rays ejected from the light-emitting wafer is scattered by the photon crystal and then reacts with the fluorescence layer to excite colorful lights, and then the colorful lights are subjected to light mixing, thus white lights are generated and then are sent out outside. Thus the purpose of promoting the light extraction efficiency is achieved so as to avoid the defect of poor scant luminous efficiency of the existing light-emitting device. |
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