1：What is it used for?
The driver can view essential driving information such as vehicle speed, navigation, etc., without having to lower their gaze. This information is displayed in a small area on the windshield, helping to avoid distractions from the road ahead.
2：Did you know?
The information displayed on the HUD may appear unclear, especially when there is strong glare from external light sources.
This feature can be turned off, and in some vehicles, the display position and brightness can be adjusted.
The digital display is not generated directly on the windshield; instead, it is projected onto the windshield from a projection unit located on the instrument panel.
3：Technical Principle
HUD stands for Head-Up Display. It was initially used in fighter jets and later adopted by some car manufacturers, although it is not widely available. The HUD system consists of two main components: data processing and image projection. The data processing unit integrates and processes various vehicle information, presenting it in the form of graphics or text. The image projection device is installed on the front center console in front of the driver, receiving information from the data processing unit and projecting it onto the windshield. It is equipped with a control panel for adjusting or modifying the displayed images.
The implementation principle is based on the optical reflection principle, where vehicle-related information is projected onto the windshield or a coated mirror (combiner), and then balanced to reflect into the driver's eyes.
