Personalization is also a highly desirable feature for drivers when choosing how to interact with their vehicle. Head-up displays (HUDs) allow drivers to select the information displayed and can be a selling point for vehicles that offer this technology. Some information, including vehicle status, is always available on the screen, while infotainment information is available as needed.

Among the main requirements of HUD technologies are a high luminance of more than 10,000 units, an operating temperature of between -40 and 85 degrees Celsius and a lifespan of more than 10,000 hours without degradation.

The information should be minimal, highly transparent, and positioned optimally, for example, within the driver's line of sight, as indicated in the IDTechEx report, so as not to obstruct their vision while remaining clear enough to capture their attention. The HUD technology must be highly scalable, which also includes the need for it to be cost-effective and energy-efficient to adapt well to different types of vehicles.

Head-up displays (HUDs) are known to be expensive to manufacture and implement, and while they are becoming standard for some automakers, their use remains limited for others. By using the windshield as a display screen, the small images associated with steering and speed only have a focal distance of a few meters, and do not yet create the immersive or aesthetically pleasing experience that might be desired in high-end vehicles in the future.

The origins of HUDs and the future of evolving displays

The IDTechEx report, "Heads-up Displays 2024-2034: Technologies, Players, Opportunities," describes fighter pilots as among the first to experience the long-evolving technology of head-up displays (HUDs). These displays allowed messages and information such as altitude and airspeed to be displayed directly to their eyes while flying, eliminating the need to look down. The technology was introduced to the automotive industry in the late 1980s, where it has continued to evolve ever since.