In car entertainment has become an integral part of the way we drive in this modern era. The use of video and tv screens can be seen in vehicles in the dash as part of the sound system, in the headrest for the back passengers to view or folded down from the internal roof of the car. The portable use of satellite navigation systems (tom-toms) has increased where nearly every other driver owns one. There are times when the viewing of the screen can become overcome by sunshine or by shadows as we drive, this affects the way in car...
