A display device having a touch sensor, using the in-cell touch sensor technology, comprising: a display panel configured to display an image; a touch screen positioned inside the display panel; and an integrated driving circuit configured to output a common voltage during a display driving period (Td) for displaying an image on the display panel and output a touch driving signal (Tdrv) during a touch screen driving period (Tt) for sensing the touch screen, the integrated driving circuit including: a data driving circuit (12a, 12b, 12c) configured to output a data signal to the display panel; an input terminal to which a common voltage is input; and a pair of touch screen driving circuits (30a, 30b, 30c) configured to output the touch driving signal to the touch screen, each of the touch screen driving circuits (30a1, 30a2) including a common voltage compensation circuit (35a1, 35a2) activated or inactivated in response to an active signal (EN1, EN2) output from an external controller (20, 40), wherein the common voltage compensation circuit of the pair of common voltage compensation circuits (35a1, 35a2) is activated, which is positioned farther away from the input terminal, to which the common voltage is input, whereas the common voltage compensation circuit of the pair of common voltage compensation circuits (35a1, 35a2), which is positioned nearer to the input terminal of the common voltage is inactivated, so as to compensate common voltage deviation within the integrated circuit caused by the position of the input terminal to which the common voltage is input. a display panel configured to display an image; a touch screen positioned inside the display panel; and an integrated driving circuit configured to output a common voltage during a display driving period (Td) for displaying an image on the display panel and output a touch driving signal (Tdrv) during a touch screen driving period (Tt) for sensing the touch screen, the integrated driving circuit including: a data driving circuit (12a, 12b, 12c) configured to output a data signal to the display panel; an input terminal to which a common voltage is input; and a pair of touch screen driving circuits (30a, 30b, 30c) configured to output the touch driving signal to the touch screen, each of the touch screen driving circuits (30a1, 30a2) including a common voltage compensation circuit (35a1, 35a2) activated or inactivated in response to an active signal (EN1, EN2) output from an external controller (20, 40), wherein the common voltage compensation circuit of the pair of common voltage compensation circuits (35a1, 35a2) is activated, which is positioned farther away from the input terminal, to which the common voltage is input, whereas the common voltage compensation circuit of the pair of common voltage compensation circuits (35a1, 35a2), which is positioned nearer to the input terminal of the common voltage is inactivated, so as to compensate common voltage deviation within the integrated circuit caused by the position of the input terminal to which the common voltage is input. a data driving circuit (12a, 12b, 12c) configured to output a data signal to the display panel; an input terminal to which a common voltage is input; and a pair of touch screen driving circuits (30a, 30b, 30c) configured to output the touch driving signal to the touch screen, each of the touch screen driving circuits (30a1, 30a2) including a common voltage compensation circuit (35a1, 35a2) activated or inactivated in response to an active signal (EN1, EN2) output from an external controller (20, 40), wherein the common voltage compensation circuit of the pair of common voltage compensation circuits (35a1, 35a2) is activated, which is positioned farther away from the input terminal, to which the common voltage is input, whereas the common voltage compensation circuit of the pair of common voltage compensation circuits (35a1, 35a2), which is positioned nearer to the input terminal of the common voltage is inactivated, so as to compensate common voltage deviation within the integrated circuit caused by the position of the input terminal to which the common voltage is input.