An information display device that displays plural pieces of display information on a screen while laying out these pieces of display information, including: a gaze judger that judges whether or not the user is gazing at the screen; a display area change detector that detects a change of the display area of the display information; a display area determinator that, when a change of the display area is detected when the user is gazing at the screen, determines a display area according to a ratio of the change of the display area; and a display information display that displays the display information according to the display area of the display information. Even when the layout of the display information is changed in a state in which the user is not gazing at the screen, a change from a state in which an original display is produced is displayed when the user is gazing at the screen.