A Head-Up Display (HUD) is a technology that projects important information onto a transparent screen in the driver's line of sight. This allows drivers to see data such as speed, navigation directions, and alerts without taking their eyes off the road. HUDs are commonly used in vehicles, enhancing safety and convenience by minimizing distractions. Originally developed for military aircraft, HUDs have expanded to various applications, including commercial aviation and consumer electronics. In modern cars, HUDs can integrate with smartphones and other devices, providing real-time updates and notifications. This innovation aims to improve the overall driving experience while maintaining focus on the road.