TOUCH INPUT DEVICE

Embodiments of the present invention relate to a touch input device, and more specifically, to prevent flicker in the display panel caused by driving a touch sensor, reduce the driving time of the touch sensor, and reduce power consumption of the touch input device. There is, it relates to a touch input device that can drive an external stylus pen or detect a pen signal from the stylus pen.The touch input device of the present invention includes a touch sensor; and a control unit that controls the touch sensor, wherein the touch sensor includes a plurality of first electrodes and a plurality of second electrodes, the first electrode is disposed along a first direction, and the second electrode is disposed along a second direction different from the first direction, a 2a electrode pattern disposed immediately adjacent to the first electrode, and a 2b electrode pattern disposed at a distance apart by an interval from the first electrode and not immediately adjacent to the first electrode, wherein the control unit controls different driving signals to be applied simultaneously to at least two second electrodes among the plurality of second electrodes, wherein the driving signal applied to the 2b electrode pattern is applied to the 2a electrode pattern. The phase of the applied driving signal is reversed by 180 degrees, and the control unit detects the touch position of the object located on the touch sensor based on the signals received from the plurality of first electrodes.