Method of driving image display

A method of driving an image display, comprising the steps of:

• applying a scan line voltage to scan lines so as to switch, between on state and off state, pixel switching elements connected to pixel electrodes each provided for a different pixel on a substrate, applying a signal line voltage to signal lines connected to the pixel electrodes through the pixel switching elements when the pixel switching elements are in the on state, applying a common voltage to a common electrode sandwiching the pixels between the same and the pixel electrodes, and while AC driving the pixels, adjusting a pulse width of the signal line voltage for the AC driving when the pixel switching elements are in the on state, so as to control display tones;
• making the signal line voltage and the common voltage equal to each other so as to discharge the pixels when the pixel switching elements are in the on state;
• and
• changing the signal line voltage to charge the pixels,
• wherein discharging occurs for pixels connected to two or more adjacent scan lines when the maximum value of the signal line voltage is equal to the maximum value of the common voltage and the minimum value of the signal line voltage is equal to the minimum value of the common voltage.