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Updated: Jun 11, 2026

An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
A bistable polarizer-free electro-optical switch using a droplet manipulation on a liquid crystal and polymer
Yi-Hsin Lin1, Jiong-Kuan Li, Ting-Yu Chu
1Department of Photonics, National Chiao Tung University, Hsinchu 30050, Taiwan. yilin@mail.nctu.edu.tw
Abstract:
A bistable, polarizer-free, and reflective electro-optical switch based on a droplet manipulation on a liquid crystal and polymer composite film (LCPCF) is demonstrated. A color droplet on LCPCF can be manipulated by a wettability gradient owning to the distribution of LC directors anchored among the polymer grains on LCPCF. The contrast ratio is around 8:1 in a reflective mode. The potential applications of droplet manipulation are electronic papers and reflective displays.

