The optical switching times of liquid-crystal cells using 5CB, 5OCB and PCH5 liquid crystal materials have been characterized as a function of applied voltage, V, and temperature, T. The transition time from 90 to 10 % transmission scales as V and is limited to 50 to 30 ns by the breakdown electric field, ~ 10 V cm of the liquid crystal. The time from the initial voltage step to 90 % transmissi...
