In the past, rigorous legal requirements regulating the brightness of vehicle lighting have limited the number of lighting functions that it was possible to implement with OLED technology. (tcbmw.com)
He claims that the weight saving could make electrically powered vehicles light enough to be practical for town use. (newscientist.com)
As such, any of these screens mounted on moving vehicles are not in line with European legislation on motor vehicle lighting devices and are not allowed in traffic. (visionect.com)