Smart Switchable Glass Film PDLC (polymer dispersed liquid crystal) switchable smart glass film allows you to transform existing glass windows, partitions, acrylic screens, Plexiglas or other transparent surfaces for instant switchable privacy and security. PDLC is a smart window film technology, based on material which mixes Polymer and Liquid Crystal. When electricity is powered on PDLC film, the film becomes transparent; hence users can control its opacity / clarity by simple switchable device Our switchable film is manufactured with a self-adhesive static cling layer, ready to apply to a window (a clean and carefully prepared one). Switchable film is operated by a simple electrical switch to control the opacity of the switchable film, turning it from clear to translucent. It can easily be integrated into home automation systems too, giving you even more control. PDLC can be used as a rear projection screen as well.