Abstract: A display unit for presenting visual information to the driver of a vehicle comprises a liquid crystal display 1, mirror 2 and prism 4 for presenting the driver with a magnified virtual image for viewing through a prism face 4c, the image appearing at a comfortable distance, beyond the vehicles windscreen. The elements 1, 2, 4 comprising the unit may. be supported in a framework 10 as a compact package and mounted in the vehicle's dashboard. The prism 4 may be lowered to a stored position when the display is not in use.