Abstract: A bifocal head-up display system includes a projector, at least one projection surface in an intermediate image plane, and relay optics to direct a display image to a reflector in a vehicle operator's field of view. The display image includes two image portions focused at different distances from the vehicle operator. A first image portion focused at a first distance may include information related to vehicle operation, and a second image portion focused at a second distance may include to information related to extra-vehicular objects.

Abstract: A bifocal head-up display system includes a projector, at least one projection surface in an intermediate image plane, and relay optics to direct a display image to a reflector in a vehicle operator's field of view. The display image includes two image portions focused at different distances from the vehicle operator. A first image portion focused at a first distance may include information related to vehicle operation, and a second image portion focused at a second distance may include to information related to extra-vehicular objects.

Abstract: Display apparatus and method having window shade heating. The display has an active matrix LCD with a plurality of elements and a backlight having a variable brightness. During warm-up of the display, the operating temperature will be below the normal operating temperature. To decrease warm-up time, the LCD elements are darkened and the brightness of the backlight is increased.

Abstract: Disclosed is a moving map display having a mass memory storing a complete map of the terrain to be traversed by a vehicle, a scan memory storing a portion of the complete map corresponding to the area immediately surrounding the vehicle, a computer for controlling the updating of the portion of map stored in the scan memory and for controlling the refreshing of the map data displayed on a cathode ray tube display, a scan memory address generator receiving parameters computed by the computer for generating addresses sequential outputting the digital map data stored in the scan memory in a predetermined sequence, a video display generator for converting the map data output from the scan memory for utilization by the cathode ray tube display, and a timing generator for synchronizing the generation of the addresses by the scan memory address generator with the scan field of the cathode ray tube display.