Smart Film
SMART Film is based on digital shading technology that allows the color of the film to go from non-transparent to transparent when you apply a current through it. When SMART Film is off, the polymer dispersed liquid crystals are jumbled randomly causing light to disperse and unable to penetrate SMART Film resulting in an opaque state.
It gives you the option for privacy on demand by adjusting the amount of light traveling through your glass window. It does not require you to replace your windows or glass partition as it can be retro-fit onto any glass surface in your living room, bathroom or office.