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Updated: Aug 21, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
Polarity-directed analog electro-optic switching in a low-polarization chiral smectic liquid crystal with positive
Jan P F Lagerwall1, Alexander A Kane, Noel A Clark
1Department of Physics, University of Colorado, Boulder, Colorado 80309, USA. jan.lagerwall@ipc.uni-stuttgart.de
Abstract:
We describe an analog electro-optic (EO) switching mechanism occurring in thin cells filled with a low-polarization ferroelectric liquid crystal mixture with positive dielectric anisotropy. The mixture is composed of an achiral nonpolar smectic-C (Sm-C) host doped with a small amount of a commercially available unichiral compound. The switching mechanism provides analog EO behavior, and thus could be attractive for information display applications. The process is polarization-driven for weak fields, while for higher field strength the dielectric coupling dominates the process.
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