first pixel electrode 208 a and the second pixel electrode 208 b adjust the moving direction of lc modules based on the voltage of the data signal meanwhile the first storage capacitor c st1 the second storage capacitor c st2 and the charge sharing capacitor cs store the voltage of the data signal so the voltage v st1 of the first storage capacitor c st1 and the voltage v st2 of the second storage capacitor c st2 are roughly the same at this time the scan line g 2 also emits the scanning signal to prompt the first thin film transistor t 1 and the second thin film transistor t 2 of the pixel unit 200 in the following row to enter a pre charge status during the t 2 t 3 period the other end of the charge sharing capacitor cs is electrically connected to the scan line g 2 the scan line g 2 continues outputting a scanning signal while the scan line g 1 does not output any scanning signal at this period at this time the pixel electrodes 208 a and 208 b can remain the same for grayscale output based on the voltage stored by the first and second storage capacitors c st1 and c st2 during the t 3 t 4 period the scan line g 2 does not transmit any pulse of the scanning signal the scanning signal without any pulse is served as a driving signal fed to the charge sharing capacitor cs so the voltage across the charge sharing capacitor cs is different from that across the second storage.