Casper Cloaking Technology is an architectural film for glass walls that obscures light transmitted by digital screens. Anyone looking into the room from the outside sees just a black screen, while everyone inside the room can work with full privacy even with glass walls.

LED displays filter specific light oscillations. The light at the source oscillates in all directions. LED displays filter out all oscillations except the vertical. By filtering out the vertical oscillations, the cloaking technology renders the display light invisible. The film is applied to the glass on the inside of the room with the display. There is also graphic film available that can be mounted on the outside of the glass to customise the appearance of the space.

The material can be applied to any clear, smooth glass on new projects or existing glass. It is recommended for conference rooms, meeting rooms and team studios. The cloaking technology is engineered to work with most LED displays.