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Driving circuits and driving methods thereof

  • US 8,994,280 B2
  • Filed: 07/15/2013
  • Issued: 03/31/2015
  • Est. Priority Date: 12/27/2012
  • Status: Active Grant
First Claim
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1. A driving circuit, comprising:

  • a first PWM driving module, generating a first square-wave signal to drive a first illumination unit according to a first data signal of a data stream, wherein the first square-wave signal represents an illumination period of the first illumination unit in a display cycle, and a rising edge of the first square-wave signal is located at the beginning of the display cycle, wherein a first register unit receives the first data signal and outputs the first data signal to the first PWM driving module; and

    a second PWM driving module, generating a second square-wave signal to drive a second illumination unit according to a second data signal of the data stream, wherein the second square-wave signal represents an illumination period of the second illumination unit in the display cycle, and a falling edge of the second square-wave signal is located at the end of the display cycle, and wherein a rising edge of the second square-wave signal is behind the rising edge of the first square-wave signal, wherein a second register unit receives the second data signal and outputs the second data signal to the second PWM driving module.

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