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Alternative current light-emitting systems

  • US 9,490,234 B2
  • Filed: 12/09/2010
  • Issued: 11/08/2016
  • Est. Priority Date: 05/13/2005
  • Status: Active Grant
First Claim
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1. A light-emitting system, comprising:

  • an insulating substrate; and

    a plurality of light-emitting units electrically-connected on the insulating substrate, wherein each of the plurality of light-emitting units comprises a plurality of light-emitting diodes arranged as a bridge rectifier comprising;

    a first part of the plurality of light-emitting diodes emitting light during positive half cycles of an AC power signal;

    a second part of the plurality of light-emitting diodes emitting during negative half cycles of the AC power signal; and

    a third part of the plurality of light-emitting diodes comprising at least one light-emitting diode emitting light during both the positive half cycles and the negative half cycles of the AC power signal;

    wherein the plurality of light-emitting units including the plurality of light-emitting diodes arranged as a bridge rectifier is formed together in a light-emitting chip.

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