Study of the Hysteretic Behavior in Polymer-Stabilized Ferroelectric Liquid Crystal System

Abstract

We have studied the hysteresis-free switching behaviors of a polymer-stabilized ferroelectric liquid crystal (PSFLC) as well as a pure ferroelectric liquid crystal (FLC) system and found that they coincided with the model suggested by Blinov et al. [Phys. Rev. E 66 (2002) 021701] The hysteresis inversion frequency was promoted to up to 7000 Hz by connecting an external capacitor and resistor in series. In addition, the influence of temperature on the hysteresis-free switching of the cell could be optimized.

Shift of the Hysteresis Inversion Frequency with Temperature in a Surface Stabilized Ferroelectric Liquid Crystal Cell

“…The hysteresis free transmittance-voltage behavior has been achieved at higher frequencies. 8,9) The SSFLC cells generally exhibit a so called chevron layer structure 10) where top and bottom part of the smectic layer are tilted by an angle . The physical parameters, viz., rotational viscosity (), dielectric biaxiality and P S control the rotational motion of the director around the smectic cone under the influence of the dielectric torque as well as the ferroelectric torque exerted by the external field.…”