A display device including a touch screen and method of driving the same are provided. In a method of driving display device including a touch screen, the display device including a panel including a plurality of gate lines, and a plurality of electrodes respectively corresponding to the plurality of gate lines, the method includes: applying, by a touch sensing unit, a touch scan signal to a display driving unit, applying, by the display driving unit: a gate signal to a subset of the plurality of gate lines, a common voltage to a first subset of the plurality of electrodes, corresponding to the subset of the plurality of gate lines, and a touch scan signal to a second subset of the plurality of electrodes, other than the first subset of the plurality of electrodes.