What is the function of car HUD?

[SanReagan]

Car HUD is a head-up display. The following is a related introduction: 1. Auxiliary instrument: HUD is a head-up display, which was originally used as a flight auxiliary instrument in aircraft and later applied to cars. Simply put, it allows drivers to reduce the frequency of looking down at the dashboard, thereby avoiding interruptions in attention and reducing the probability of accidents. 2. Principle: The principle of HUD is to use optical reflection to project important driving data onto the front windshield, which includes two structures: data processing and image display. This configuration is more commonly used in high-end cars, while some mid-to-low-end cars do not come with it, but it can be achieved through aftermarket modifications.