AU Optronics' subsidiary, DAIKING, specializing in vertical field display solutions, has partnered with S-Bahn Hamburg, a subsidiary of Deutsche Bahn AG (DB), Europe's largest railway operator, to showcase a new concept train using DAIKING's industry-exclusive HiRaso display technology at the 2025 International Union of Public Transport (UITP) Global Transport Summit. Utilizing the unique reflective and bistable characteristics of ChLCD (Ch-based liquid crystal displays), the train achieves zero energy consumption for information display, fulfilling environmental and energy-saving requirements. This not only meets passenger communication and operational efficiency needs but also contributes to Deutsche Bahn's green transport transformation, creating a blueprint for a smart, sustainable, and net-zero city.
This concept train incorporates the Daqing 28.5-inch HiRaso Panel PC, an industrial-grade embedded solution that integrates energy-efficient display with powerful computing capabilities. Whether for passenger information display or display systems in bicycle and luggage storage areas, it can present clear and dynamically changing guidance, improve the reliability of information transmission, and create a smoother riding experience.
Unlike traditional displays, HiRaso display technology is an innovative electronic paper solution. Utilizing the unique bistable properties of cholesteric liquid crystals and its ability to reflect ambient light, it achieves optimal energy efficiency. It only consumes power when changing the display screen, consuming zero power during continuous static display, resulting in energy savings of up to 90% compared to traditional LCD technology. The HiRaso Panel PC also boasts a wide operating temperature range of -30°C to 85°C, providing reliable display performance even in harsh environments. Furthermore, it has passed IEC-61373 shock and vibration tests, meeting stringent rail transport safety standards. This ensures stable image quality and color reproduction even in high-temperature, high-vibration transportation environments, supporting a longer lifespan and guaranteeing reliable and durable passenger information delivery. This technological advantage not only enhances the efficiency of multimedia information delivery in the concept car, ensuring efficient and stable operation and creating a more intuitive, convenient, and comfortable riding experience for passengers, but also aligns with the sustainable development mission of green transportation.
Deutsche Bahn is committed to responding to the EU's climate change policy. Improving energy efficiency, reducing carbon emissions, and developing safer, more convenient, and sustainable transportation are among the key directions of Deutsche Bahn's green transformation strategy. With this in mind, AU Optronics provides highly reliable and high-quality traffic display solutions, vigorously promoting Deutsche Bahn's innovative breakthroughs in low-carbon transformation for future concept trains. In response to the trends of electrification, intelligence, and autonomous driving in future transportation applications, AU Optronics Group will steadily implement its dual-axle transformation strategy, continuing to collaborate with ecosystem partners in diverse fields such as Passenger Information Systems (PIDS) and public transport companies to expand applications to meet the development needs of smart transportation and pave the way for a sustainable future of transportation.
