To this end, according to one embodiment, the display device, comprising: a touch sensor unit; a display unit; a transparent display unit; a position sensor unit; and a processor configured to: detect the second touch input by activating the second touch sensor unit and control the first object displayed in the display unit based on the detected second touch input when a first position, and detect the first touch input and the third touch input respectively by activating the first touch sensor unit and the third touch sensor unit, control the first object displayed in the display unit based on the detected first touch input, and control the second object displayed in the transparent display unit based on the detected third touch input when a second position.