How does Magic Sky Control work in the new mercedes-benz?
This window is most likely a suspended particle device (SPD), which is a form of smart glass. Essentially there is a liquid between two sheets of glass. This liquid is randomly oriented when no voltage is applied, which reduces the light transmission. When a voltage is applied the particles (rod shaped) align themselves in a uniform direction. By properly controlling the geometry of the electrodes the orientation becomes such that light is allowed to pass through. This operates in a similar fashion as an LCD.