A touch screen device includes a screen main body comprising a plurality of transmitting electrodes and a plurality of receiving electrodes and disposed in front of a plasma display panel; a transmitter sequentially selecting the transmitting electrodes and applying a drive signal to the selected transmitting electrodes; a receiver sequentially selecting the receiving electrodes, receiving a response signal output from each of the receiving electrodes in response to the drive signal, and outputting detection data at each electrode intersection; a discharge detector detecting discharge of each of the scanning electrodes of the plasma display panel; and a controller that obtains a touch position based on detection data of the discharge detector at each electrode intersection acquired from the response signals from the receiving electrodes positioned distant from the discharging scanning electrodes.