In an image information generation device, based on status information representing statuses of various sections of a mobile unit such as a motor vehicle, image information used to display an image required, for instance, for steering this mobile unit on a display device is generated easily. In order to generate, as the image information, a layout identifier that specifies a layout of an image to be displayed on the liquid crystal display device and a component image identifier that specifies a display mode of each component image in the layout, the DPF controller compares the MEN/SEN judging table that stores an identifier table in which a correlation between the status information and the MEN, a correlation between the status information and the SEN, and a correlation between the MEN and the SEN are defined with the status information collected from the ECUs in the various sections of the mobile unit.