Development of reducing method of Hysteresis in Polymer Dispersed Liquid Crystals Panels.

Abstract

Methods to reduce the Hysteresis in Polymer Dispersed Liquid Crystals (PDLC) Panels have been investigated. We found the Hysteresis was reduced by increasing UV strength. Especially the strong UV irradiation, which is more than 100mW/cm^2 was effective to reatizc low Hysteresis. Polymerization speed(C10-90) also increased with increasing UV strength. These results suggest the structure of Liquid Crystals Matrix is important to reduce Hysteresis.