Smart Film is a protective film with a peel off backing for easy installation on existing glass. This liquid crystal polymer resembles switchable privacy glass with electrochromatic tint. Also known as smart glass, magic glass, smart tint, switchable
This pair of 'smart glasses' offers one group of people which are still finding this wearable tech useful: the visually impaired, wearers can operate it with one simple button while keeping their hands free to use a cane or carry items.
Switchable/Smart film, is a LCD product which is capable to adjust light between a transparent and a opaque state with AC power. Due to moisture sensitivity, earlier stage of the film was only used to make smart glass by glass lamination.