PWM driving method for displaying and driving LED

PWM driving method for displaying and driving LED

CN
  • CN 101,707,040 B
  • Filed: 08/04/2009
  • Issued: 11/23/2011
  • Est. Priority Date: 08/04/2009
  • Status: Active Grant
First Claim
Patent Images

1. PWM driving method that is used for the LED display driver is characterized in that it comprises:

  • Step 1 according to 8 PWM data that receive, by the variable step pulse width modulation mode, generates the waveform signal that has different duty accordingly;

    Step 2 is according to the waveform signal driving LED with different duty that generates.

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