A display device including a touch display panel, a roller housing, a touch bar, and a panel driver. The touch display panel includes a plurality of pixels and a plurality of touch sensing elements. At least a portion of the touch display panel is rolled around a roller. The roller housing is configured to receive the roller and has an opening configured to receive the touch display panel. The touch bar is disposed between the roller housing and the touch display panel and contacts the touch display panel. The panel driver divides a display portion of the touch display panel into a display area and a non-display area according to positions of touch sensing elements contacting the touch bar. The panel driver deactivates at least a portion of the non-display area.