Low power source driving device

Low power source driving device

  • CN 101,419,782 B
  • Filed: 10/25/2007
  • Issued: 11/28/2012
  • Est. Priority Date: 10/25/2007
  • Status: Active Grant
First Claim
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1. low power source driving device, the load with what driving liquid crystal panel (400) in liquid crystal driver (300) is characterized in that comprising:

  • Sequential control digital circuit (320), it is at a gate line time (T Grid) in produce different digital signal combinations (AP0-APX), and in the said digital signal combination (AP0-APX) at one time the logic current potential of a digital signal only to be arranged be 1;

    The source electrode driver bias circuit of dynamically adjusting (330), it produces the bias current (I of different simulation current potentials according to aforesaid said digital signal combination (AP0-APX) The source electrode bias voltage);

    And A plurality of gal sign indicating number drivers (310) receive aforesaid bias current (I The source electrode bias voltage) control;

    Produce the gray scale voltage of desiring to appear (G1-GM) respectively;

    Again by the required gray scale voltage (G1-GM) of a plurality of digital analog converters (340) output, make the load of said display panels (400) can in the gate line time (T grid), climb or drop to the gal sign indicating number voltage potential of appointment.

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