Polymer Dispersed Liquid Crystal (Lc)

Liquid crystals are dissolved/dispersed into liquid polymer to be hardened into panes
Curing conditions affect size of droplets
Sandwiched with conductive panel and glass
When not charged it is frosted white, more voltage and more of the particles align
Clear to frosted white
Though used primarily in on/off state for privacy, can be variable, fire rated or anti x-ray

Requires at least 15 mm
(.59 in) framing to conceal
the required cables
Needs 65-110 volt ac adapter to power up to 10 panels
each panel can be up to about 4’ x 10’
Glass varies from ¼” to ½”
Lasts over 10 years, most guaranteed for 5 years
http://www2.dupont.com/SafetyGlass/en_US/tech_info/beamCalculator.html

http://www.smartglassmedical.com/products-services/technical
70 degrees Celsius for 2 hours (158 f)
50 degrees Celsius 95% humidity for 14 days (122 f)
-20 C for 21 days (-4 f)
-20 to 50 C 5,000 times (1 min each)
Water submersed -5 C for 14 days (23 f)
This was all an 10.8 mm sample (.43”)
Blocks 35 to 44 DB based on thickness
Restaurant is 60, library is 20