When electricity is applied to the film the liquid crystals line up, changing the glass from opaque to clear. Conversely when electricity is removed, the liquid crystals return to their normal scattered positions changing the glass back to opaque. The smart glass and smart glass film. It is also called Switchable film, is a product that is capable of adjusting light transmission between transparency and opaque while using AC power. It has obvious advantage in privacy protection,energy conservation, Project curtain wall, environmental protection.
