Road signs with screens E-ink have been developed by company Visionect and are intended for improvement of the organization of traffic in a megacity. They are easy to read even in bright sunlight, and thanks to their low energy consumption, they use built-in solar panels. Information on the signs can be changed remotely via an Internet connection.
We add that the E-ink technology has a huge potential. Undoubtedly, in the future on the streets of multi-million cities will appear road signs and billboards with screens based on electronic ink.