Fast Switching of Vertically Aligned Liquid Crystals by Low-Temperature Curing of the Polymer Structure

Abstract

We proposed a method for fast turn-off switching of a vertically-aligned liquid crystal cell by low-temperature curing of the polymer structure. We confirmed that the turn-off times of the fabricated cells were reduced significantly as the curing temperature was lowered to -20℃. We accounted for the effect of low-temperature curing on the turn-off time by using a mathematical model and by observing images obtained via scanning electron microscopy. We also confirmed that low-temperature curing is more effective in reducing the response time when the device is operated at a low temperature.

Superfast Low-Temperature Switching of Nematic Liquid Crystals Using Quasi-Impulsive Driving and Overdrive

“…Recently it was demonstrated that the response time of LCs at low temperatures can be reduced by forming polymer networks, although their performance needs further improvement [18][19][20][21]. More recently, super-fast-response LCDs over a wide temperature range were demonstrated by continuously applying a vertical-bias electric field to nematic LCs [22][23][24].…”