How light becomes language: Smart exterior lighting is changing vehicle communication
In the age of autonomous mobility, light is assuming a new role: Modern outdoor lighting systems communicate with drivers, pedestrians, other vehicles and even with the infrastructure. Modern lighting systems are no longer purely functional means of improving visibility, but integrated components of intelligent mobility architectures – controlled by sensors and embedded in vehicle-to-everything (V2X) communication. Manufacturers, suppliers and software providers are investing heavily in this technology, which will not only improve safety in the future, but also be a key distinguishing feature in vehicle design.
Adaptive lighting systems improve visibility and safety
Premium manufacturers are already using adaptive lighting systems that adjust to driving conditions and the surroundings in real time. Matrix LED headlights, for example, consist of dozens of individually controllable diodes that illuminate or dim specific zones, for example, to avoid dazzling oncoming traffic or to better illuminate bends. This technology has already been successfully integrated into production models from Audi, BMW and Mercedes-Benz.
Laser lighting systems go one step further: With their high luminous range and energy efficiency, they enable improved night vision – especially at higher speeds and in poor weather conditions. According to a report by Grand View Research (2024), adaptive LED and laser lighting systems are among the dynamically growing segments in the global market for intelligent vehicle lighting.
OLEDs between design and function
At the same time, OLED technology is changing the lighting design for vehicles. The homogeneous light distribution, low height and flexible formability open up new design possibilities, especially for taillights, indicators and brake lights. Segmented OLED surfaces can be used to create dynamic lighting elements that visually communicate statuses such as charging progress, driving modes or warning signals.
Specifically for car brands in the premium segment, this creates an interplay of aesthetics and function that contributes to the brand identity.
Interactive communication with near-field projections
A current focus of development is on near-field ground projections: Light symbols or animated warnings are projected directly onto the road, for example, when turning, changing lanes or in dangerous situations. The aim is to improve non-verbal interaction between the vehicle and its environment. That enables a heightened sense of safety with autonomous driving functions. Manufacturers such as Hyundai Mobis and Continental are already working on projections that provide visual information about driving maneuvers or potential hazards.
Energy efficiency becomes a strategic factor
In the context of electromobility, the energy efficiency of lighting systems is playing an increasingly important role. Every watt-hour saved has a positive effect on range and charging cycles. Manufacturers are therefore focusing on highly efficient LEDs and adaptive lighting control systems that only illuminate where necessary. These systems help reduce energy consumption without compromising visibility or safety.
Light as the communication interface of the future
Smart exterior lighting is becoming a central interface in the connected vehicle. For developers and suppliers, this means new requirements for integration, energy efficiency and interoperability. For OEMs, lighting design opens up the opportunity to not only convey brand identity, but to also build confidence in automated mobility. The future of vehicle lighting is dynamic and goes far beyond simply making objects visible.
Find out more about the latest developments in lighting systems at the electronica Automotive Conference.
On September 10, 2025, you can look forward to inspiring expert presentations from international companies such as Bosch, Infineon, Microsoft, NXP, and many others.