An electronic device that includes a mobile terminal and a case coupled to the mobile terminal, wherein the case includes a first body that is formed to accommodate a portion of the terminal body, a second body in which a second display is disposed, and a wiring unit that electrically couples the first body and the second body to transfer data received from the mobile terminal to the second display, wherein in a state where a first screen information including an input area is displayed on the first display and a second screen information is displayed on the second display, the controller is configured to capture the second screen information displayed on the second display in response to receiving a predetermined input to the input area and to cause the first display to display the captured second screen information in the input area of the first screen information.