Information Displaying System for Use with a Vehicle Head-Up Display

An information-displaying system is provided for use with a vehicle head-up display including a liquid crystal panel for displaying drive information image, a backlight unit for irradiating light toward the liquid crystal panel, an optical system for enlarging or reducing the drive information image displayed on the liquid crystal panel, and a reflection mirror for reflecting the drive information image projected by the optical system toward a windshield of a motor vehicle. The information-displaying system includes a navigation information providing unit for providing navigation information on a current vehicle position, a road map and an optimum route to destination, a traffic information providing unit for providing traffic information on a real time basis, and a control unit for controlling the liquid crystal panel to display the navigation information and the traffic information provided by the navigation information providing unit and the traffic information providing unit.