| 摘要 |
A column driving apparatus for TFT (thin film transistor) LCD (liquid crystal display) includes a data processing unit for generating a constant analog signal in accordance with an input data, a driving unit for receiving the analog signal from the data processing unit and outputting an analog voltage at an output terminal, and a control unit for selectively connecting the output terminal of the driving unit, a positive predriving terminal, a negative predriving terminal and a charge distribution terminal to pixels of the liquid crystal display. The apparatus decreases charge distribution time using a common line, and decreases pixel driving time and power by predriving the pixels using a potential approximate to the pixel driving potential.
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