Polyvision® Switchable Privacy Glass is made of a polymer matrix imbedded with liquid crystals that are sandwiched between two layers of electrically conductive film. The liquid crystal privacy film is then laminated between two pieces of glass with an interlayer inserted on each side to secure and hold the film in place. This film has electrical wiring that connects to our Polytronix provided power supply. When the power switch is turned to on, the liquid crystals align and the glass turns clear; when the switch is turned off, the liquid crystals return to their normal scattered positions and the glass becomes opaque.