Touchscreen apparatus and method for sensing touch input

The present invention relates to a touch screen device and the touch-sensitive method, a touch screen apparatus according to an embodiment of the present invention includes a panel unit including a plurality of first electrodes and a plurality of second electrodes; Driving circuit unit for applying a drive signal having a predetermined period in sequence a first electrode of the plurality; Detection circuit part for detecting the capacitance from the second electrode of said plurality; Drive voltage generator for generating a driving voltage, and; Include, and generates the driving voltage unit according to the detection voltage detected by the first electrode to which the drive signal of the first electrode of the plurality is the calibration interval may be adjusted to the driving voltage.