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White light emitting diode (LED) lighting device driven by pulse current

  • US 8,883,525 B2
  • Filed: 12/16/2013
  • Issued: 11/11/2014
  • Est. Priority Date: 03/12/2010
  • Status: Expired due to Fees
First Claim
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1. A method for making a white LED lighting device, comprising:

  • mixing a blue afterglow luminescence material A with a yellow luminescence material B to form a mixture, wherein the yellow luminescence material B is able to emit light under excitation of the blue afterglow luminescence material A and/or a blue, violet or ultraviolet LED chip;

    packing the mixture with at least one blue, violet or ultraviolet LED chip to form the white LED lighting device.

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