Web page content, which is the same as web page content displayed on a first display unit with a mobile communication device in an opened state, is displayed on a smaller-sized second display unit with the mobile communication device in a closed state, without reacquiring content by another communication. A control unit (304) causes content acquired from an external website to be stored in a storage unit (305). When notified of the opened state by the opened/closed detection unit (308), a display control unit (308) reads a desired web page from the storage unit (305) to a first storage area corresponding to a size of the first display unit (106), develops the web page as bitmap data, and displays the bitmap data on the first display unit (106). When notified of the closed state by the opened/closed detection unit (307), the display control unit (308) erases the display of the first display unit (106), reads from the storage unit (305) the same web page developed to the first storage area as bitmap data, minimizes a size of characters, develops the web page as bitmap data to a second storage area corresponding to a size of the second display unit (201), and displays the bitmap data on the second display unit (201).