VariGuard
VariGuard SmartGlass VariGuard SmartGlass™ is the first and only display panel that offers a wide range of visible light transmission, instant switching between dark and clear states, and 99% UV-blocking at all times. Based on patented SPD light-control technology developed by Research Frontiers, VariGuard display panels optimally protect artifacts by limiting their light-exposure only to those times when people are viewing them.