<p>A touching screen includes: a touch-detecting circuit, sensor electrodes coupled with touching things. It also includes touch-detecting electrodes coupled with the touch-detecting circuit, the number of the touch-detecting electrodes is less than that of the sensor electrodes, and the touch-detecting electrodes are coupled with the sensor electrodes. The touch-detecting circuit detects and compares the signals on the touch-detecting electrodes when there isn't any touch or there is a touch on the touching screen.</p>
