The invention discloses a
display device and a driving method thereof; force sensing function is achieved via a
capacitance structure formed between self-
capacitance electrodes and backlight
metal of a touch screen; in the period of touch detection, a touch detection
signal is loaded to both the self-
capacitance electrodes and the backlight
metal, a touch position is judged by detecting changes in capacitances of the self-capacitance electrodes so as to achieve the touch detection function; in the period of force detection, a touch detection
signal is loaded to the self-capacitance electrodes or the backlight
metal, a change in the distance between the self-capacitance electrodes and the backlight metal due to force touch may lead to
charge and discharge of the capacitance structure formed between the self-capacitance electrodes and the backlight metal, and therefore the magnitude of force at the touch position can be judged by detecting changes in the capacitances of the self-capacitance electrodes so as to achieve the force sensing function. The
display device provided by the embodiment of the invention experiences few structural design modifications not limited to
assembly allowance, better detection precision is benefited, and manufacture cost can be saved.