| 摘要 |
A shift register includes plural shift register stages for providing plural gate signals to plural gate lines. Each shift register stage includes a pull-up unit, an input unit, an energy-store unit, a discharging unit and a pull-down unit. The pull-up unit pulls up a first gate signal according to a driving control voltage and a first clock. The input unit is utilized for inputting a second gate signal generated by a preceding shift register stage to become a driving control voltage which is stored in the energy-store unit. The discharging unit is utilized for performing an alternate pull-down operation on the driving control voltage according to a second clock and a third clock. The pull-down unit is utilized for performing an alternate pull-down operation on the first gate signal according to the second and third clocks.
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