Display device including conductive layer and touch sensors configured to receive the same signal

A display device, comprising:

• a display panel comprising:
• pixels configured to display images;
• and
• touch sensor electrodes configured to sense a touch event, the touch sensor electrodes overlapping a common electrode disposed in a different layer than the touch sensor electrodes, the touch sensor electrodes being spaced apart from the common electrode without any contact between the touch sensor electrodes and the common electrode, the common electrode being configured to apply a common voltage to the pixels;
• a signal controller configured to generate signals to control the display of the images via the display panel;
• sensing signal lines respectively connected to the touch sensor electrodes;
• and
• a touch sensor controller configured to:
• transmit a sensing input signal via the sensing signal lines;
• receive a sensing output signal via the sensing signals lines;
• and
• generate touch information based on reception of the sensing output signal,
• wherein the touch sensor controller is configured to apply the same signal to the touch sensor electrodes and the common electrode,
• wherein the display panel further comprises:
• a lower panel;
• and
• an upper panel disposed on the lower panel, the touch sensor electrodes being configured to sense the touch event on a surface of the upper panel;
• and
• wherein the lower panel comprises:
• the common electrode;
• an insulating layer disposed on the common electrode;
• and
• a touch sensor layer comprising the touch sensor electrodes, the touch sensor layer being disposed on the insulating layer, the insulating layer being disposed between the common electrode and the touch sensor layer.