LIGHT EMITTING DIODE ELEMENT AND DRIVING METHOD THEREOF
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United States of America Patent
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Issued Date -
Mar 29, 2007
app pub date -
Jun 16, 2006
filing date -
Aug 2, 2005
priority date (Note) -
Abandoned
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Abstract
A light emitting diode (LED) element includes a substrate, a first light emitting unit, a second light emitting unit, a first electrode couple and a second electrode couple. The first light emitting unit is disposed on the substrate. The second light emitting unit is disposed on the first light emitting unit. The first electrode couple is disposed on and electrically connected with the first light emitting unit. The second electrode couple is disposed on and electrically connected with the second light emitting unit. The LED element is adapted for being driven by an alternate current for having the first light emitting unit and the second light emitting unit alternately emitting lights, thus obtaining a white light with a proper color temperature.
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