US Patent 7804399 Display apparatus

A controller of a navigation apparatus acquires audio information when it is determined in a display switch process that a display of a display device is stored in a center console portion. An audio information image is generated from the acquired audio information. The generated audio information image is displayed on an exposed portion of a viewing area of the display. Even if the viewing area of the display is partially concealed by the center console portion, an exposed portion of the viewing area, which is not concealed by the center console portion, is effectively used. Useful information image such as an audio information image other than a usual navigation information image can be thus provided in the partially exposed portion of the viewing area of the display.