Head-up display (HUD) is in form of transparent screen present in front of user. It is an innovative technology developed to assist drivers and pilots to view dashboard data in the user’s field of view. HUDs were previously developed using cathode ray tube (CRT) technology, but are currently available with Liquid Crystal Display (LCD) technology, which gives clearer picture to user. This technology enables users to maintain concentration while driving or flying, thus ensuring their safety. HUD systems are satisfying the security, safety, comfort, and entertainment requirements of its users. HUDs are widely used in commercial and defence airplanes, automobiles, and gaming applications. HUDs in airplanes display information regarding position, radar information, flight path, acceleration, and real time position, which helps pilots to react in timely and rapidly manner. This innovation has slowly made its way into the automotive industry and is currently being considered amongst the prominent driver assistance systems. HUDs in automobiles display GPS information, speed, and engine details on to the windshield of vehicles.
HUD market is expanding because of continuous development in various devices. Advancements in Personal Digital Assistant (PDA) devices and smartphones has triggered the growth of HUD technology, as these small electronic gadgets can be used as complement of HUD for various applications. Besides these advancements, new prototypes have been developed for implementation of this technology in two-wheeler helmets and on-board diagnostic features, thus opening up new scope for applications. Major advantage of Head-Up display is that, it allows driver or pilots to concentrate on their path & simultaneously read any important operational information on the display, it minimizes the possibilities of accidents and gives easy access to information. Some major concern for Head-up display is that many times it creates distraction while driving if continuously...