| 摘要 |
A method for cancelling the deviation voltage of a source driver of a LCD is disclosed. The method includes measuring an effective load resistor and an effective load capacitor of a panel of the LCD against the source driver, computing a lowest valid frequency of the chopper circuit according to the effective load resistor and the effective load capacitor, and adjusting the switching frequency of the chopper circuit according to the lowest valid frequency to filter out high frequency components of signals outputted by the source driver via the panel, so as to cancel the deviation voltage.
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