A Heads-Up Display (HUD) is a technology that projects information onto a transparent screen, allowing users to see data without looking away from their primary focus. Commonly used in vehicles, aviation, and gaming, HUDs display essential information such as speed, navigation directions, and alerts directly in the user's line of sight. This enhances safety and situational awareness by minimizing distractions. In modern applications, HUDs can be found in smartphones and augmented reality devices, providing real-time data overlays. For example, in aviation, pilots use HUDs to view critical flight information while keeping their eyes on the runway. Similarly, in gaming, HUDs display player stats and objectives, enhancing the overall experience.