Head up display
This Automotive HUD is short for Head Up Display, with the meaning of "look-up display device", or "look-at-the-front-horizontally display device". It can project important information (e.g. vehicle speed) onto the front windshield at the eye level of the driver and thus help to make their driving safe and sound when driving at a high speed, especially at night without lowering their heads.
Vehicle running at a high speed, especially at night when travelling at high speed, if the driver down to view the instrument display or viewing stereo display, front in an emergency is possible because there is no time to take effective measures and cause an accident. To prevent this from happening, a few high-end cars equipped with  head-up display ( HUD ) system, it can project the information on the front windshield of the driver level range, and the display position, the display brightness is adjustable.