A mobile device according to example embodiments includes a display device including a flat display region having a flat shape and a curved display region having a curved shape, the curved display region being integrally formed with the flat display region, a sensing unit configured to detect a physical state of the mobile device, a context determining unit configured to determine a current context of the mobile device based on the physical state detected by the sensing unit, and to select one of the flat display region and the curved display region to be activated based on the current context, and a display controller configured to activate the selected one of the flat display region and the curved display region.