The material currently used for HUD module LCD screens is mainly sapphire cover glass.

1. Sapphire material has high hardness, enhancing the durability of HUD system
Sapphire has a Mohs hardness of 9, second only to diamond, and has excellent wear resistance and scratch resistance, which can effectively resist external forces and extend the service life of HUD systems; Secondly, sapphire material can maintain surface smoothness in harsh usage environments, ensuring clear display of HUD images.

2. Sapphire material has high transparency, improving display effect
Sapphire has good transparency in the visible light range, allowing sufficient light to pass through, thereby improving the brightness and contrast of the HUD system, making the image clearer and more vivid, and enabling drivers to see display information clearly under various lighting conditions.

3. Sapphire material is heat-resistant, ensuring stable operation of HUD system
During operation, the interior of a car generates high temperatures. Sapphire has excellent high-temperature resistance and can maintain stable physical and chemical properties in high-temperature environments, ensuring the normal operation of the HUD system.

4. Sapphire material has excellent chemical stability
Sapphire has good chemical stability, is not easily corroded by chemical substances, and can maintain a long service life in complex environments inside cars.