A display device including: a first body member; a second body member; a hinge coupling the first body member and the second body member; a flexible display panel that is foldable, that is fixed to the first body member and to the second body member, and that is configured to display an image; and a controller configured to: measure a temperature of the flexible display panel; and control the hinge, when the measured temperature is lower than a reference temperature, to: maintain a state in which the first body member and the second body member are folded; or maintain a state in which the first body member and the second body member are unfolded.