VariGuard SmartGlassTM and SmartPlasticTM are the first and only display panels that offer 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.


  • Freestanding, wall and table top display cases
  • Picture frames
  • Partitions
  • Shadowbox frames

Available with high performance anti-reflection and IR-rejection properties.

VariGuard – the best protection for your light-sensitive artifacts.

Visible Light Transmittance: As low as 99.96% light blockage
As high as 80% light transmission
UV rejection:: As high as 99.9% (full-time), Protection up to 400 nm
Solar Control: Dark state: As high as 95% heat blockage
Clear state: As high as 57% heat transmission
Intermediate States: Infinitely tunable
Switching Speed: 1-3 seconds
Switching Uniformity: Completely uniform – no blotchiness or iris effects
Maximum Power Draw: As low as 1.8 mA/ft2
Size: Length: No limitation
Width: Up to 1 meter (larger widths available when film is seamed)
Shapes: Any
Substrates: Chemically strengthened glass
Composite glass
Bullet and hurricane resistant composites also available

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