As is obvious from the description in the specification and the attached drawings, the present invention provides a display apparatus for displaying an image on a display panel by turning on pixels of said display panel, said display apparatus comprising: a display panel provided with: address electrodes driven by address pulses based on a video input signal; and sustain electrodes crossing said address electrodes and sandwiching electrical discharging units of pixels with said address electrodes and driven by sustain pulses; a sustain-electrode drive circuit for generating said sustain pulses and scan pulses, provided with a common circuit for generating said sustain pulses or said scan pulses in response to an operating state thereof and for supplying said scan pulses and said sustain pulses to said sustain electrodes.