| 摘要 |
The present invention relates to the source driving circuit of Thin Film Transistor-Liquid crystal Device (TFT-LCD). The circuit of the present invention, the low power source driving circuit for driving data line of TFT-LCD according to video data, comprising the means of: digital-analog converter; polarity modulator; output buffer; and switching means. According to the present invention, as preventing overcharging or overdischarging as charging and discharging until not fixed voltage level but level controlled by video signal in polarity modulation, it is possible to prevent unnecessary power consumption. |
