Display device and driving method

The embodiment of the invention discloses a display device and a driving method, and the device comprises a display panel which comprises a plurality of grid lines and a grid driving circuit; the gate drive circuit comprises a plurality of cascaded shift register units, and the plurality of shift register units comprise a display shift register unit and a virtual shift register unit; the display shift register unit is coupled with at least one grid line in the plurality of grid lines; and the compensation circuit unit is coupled with the virtual shift register unit and is configured to compensate the voltage of the effective level output by the display shift register unit according to the electric signal acquired based on the virtual shift register unit.