MULTI-SCREEN DISPLAY DEVICE

PROBLEM TO BE SOLVED: To operate a window output by using a plurality of remote controllers so as to easily distinguish a window output corresponding to each. SOLUTION: The display device is provided with a remote controller ID extract means 3 that extracts ID information from a signal received by a reception means 1 receiving signals from a plurality of remote controller having individual ID information, a window generating means 22 that generates a window on the basis of the ID information extracted therefrom, a control information extract means 5 that extracts control information for video control from the signal received by the reception means 1, a video control means 10 that controls a video image displayed in a prescribed window on the basis of the control information extracted by the control information extract means 5 and an image synthesis means 25 that maps the video image controlled by the video image control means 10 within the window generated by the window generating means 22.