LED packaging structure
The utility model provides an LED packaging structure. The LED packaging structure comprises: a substrate; the plurality of LED chips are arranged on the substrate; the first fluorescent powder layer covers the plurality of LED chips; and the reflecting layer is arranged on one side, far away from t...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model provides an LED packaging structure. The LED packaging structure comprises: a substrate; the plurality of LED chips are arranged on the substrate; the first fluorescent powder layer covers the plurality of LED chips; and the reflecting layer is arranged on one side, far away from the LED chip, of the first fluorescent powder layer. According to the embodiment of the invention, the LED chip is covered with the first fluorescent powder layer, the first fluorescent powder layer is provided with the reflecting layer, and the reflecting layer can reflect for multiple times and repeatedly excite, so that the absorption efficiency of the KSF or KGF fluorescent powder to purple light or blue light is improved, the concentration of the KSF or KGF fluorescent powder in a light source is effectively reduced, the same luminous efficiency can be maintained, and the luminous efficiency of the LED is improved. And meanwhile, the temperature in the light source is greatly reduced, the reliability of the lig |
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