A display device comprising - a touch-control driving circuit and - a gate driving circuit, the gate driving circuit comprising a shift register unit, - the display device further comprising a display panel, wherein the display panel is configured to be operated in an operation timing cycle including a display phase and a touch-control phase, the display panel includes - pixel thin film transistors, - gate lines connected to the gates of the pixel thin film transistors, - pixel electrodes connected to the sources of the pixel thin film transistors, - a common electrode, and - common electrode lines, the common electrode lines are used as touch-control scanning signal lines in the touch-control driving circuit during the touch-control phase, wherein the touch-control driving circuit comprises - a buffer unit comprising an input terminal connected to an output of the shift register unit of the gate driving circuit and an output terminal connected to a corresponding gate line of the display panel, wherein the display device, in the touch-control phase, is configured - to apply a high level signal and a low level signal to the touch-control scanning signal lines in a time sharing manner, and - to change the voltages of the pixel electrodes so as to maintain the voltage difference between the pixel electrodes and the common electrode lines in order to maintain the angle of deflection of the liquid crystal molecules of the display panel, characterized in that the buffer unit, during the touch-control phase, is configured to adjust the voltage input to the gate lines to a target voltage such that the voltage between the gate and the source of the pixel thin film transistors is smaller than a first value thereby reducing the drift of the transconductance curve of the pixel thin film transistors. - a touch-control driving circuit and - a gate driving circuit, the gate driving circuit comprising a shift register unit, - the display device further comprising a display panel, wherein the display panel is configured to be operated in an operation timing cycle including a display phase and a touch-control phase, the display panel includes - pixel thin film transistors, - gate lines connected to the gates of the pixel thin film transistors, - pixel electrodes connected to the sources of the pixel thin film transistors, - a common electrode, and - common electrode lines, the common electrode lines are used as touch-control scanning signal lines in the touch-control driving circuit during the touch-control phase, wherein the touch-control driving circuit comprises - a buffer unit comprising an input terminal connected to an output of the shift register unit of the gate driving circuit and an output terminal connected to a corresponding gate line of the display panel, wherein the display device, in the touch-control phase, is configured - to apply a high level signal and a low level signal to the touch-control scanning signal lines in a time sharing manner, and - to change the voltages of the pixel electrodes so as to maintain the voltage difference between the pixel electrodes and the common electrode lines in order to maintain the angle of deflection of the liquid crystal molecules of the display panel, characterized in that the buffer unit, during the touch-control phase, is configured to adjust the voltage input to the gate lines to a target voltage such that the voltage between the gate and the source of the pixel thin film transistors is smaller than a first value thereby reducing the drift of the transconductance curve of the pixel thin film transistors. - pixel thin film transistors, - gate lines connected to the gates of the pixel thin film transistors, - pixel electrodes connected to the sources of the pixel thin film transistors, - a common electrode, and - common electrode lines, the common electrode lines are used as touch-control scanning signal lines in the touch-control driving circuit during the touch-control phase, - a buffer unit comprising an input terminal connected to an output of the shift register unit of the gate driving circuit and an output terminal connected to a corresponding gate line of the display panel, - to apply a high level signal and a low level signal to the touch-control scanning signal lines in a time sharing manner, and - to change the voltages of the pixel electrodes so as to maintain the voltage difference between the pixel electrodes and the common electrode lines in order to maintain the angle of deflection of the liquid crystal molecules of the display panel,