A display device includes: a substrate; a display layer on the substrate; and a touch layer on the display layer, and including: a touch area; first sensor electrodes located along a first direction, and electrically connected to each other; second sensor electrodes located along a second direction crossing the first direction, and electrically connected to each other; and third sensor electrodes located along the first direction, and electrically insulated from the first and second sensor electrodes. In a first mode, the touch layer is to sense amounts of change in first capacitances between the first sensor electrodes and the second sensor electrodes, and in a second mode, the touch layer is to sense amounts of change in second capacitances between the first sensor electrodes and some of the second sensor electrodes, and amounts of change in third capacitances between the first sensor electrodes and the third sensor electrodes.