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Low-voltage tunable color in full visible region using ferroelectric liquid-crystal-doped cholesteric liquid-crystal smart materials
Author(s): Jia-De Lin; Jyun-Wei Lin; Chia-Rong Lee
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Paper Abstract

Electrical tuning of photonic bandgap (PBG) of cholesteric liquid crystal (CLC) without deformation within the entire visible region at low voltages is not easy to achieve. This study demonstrates low-voltage-tunable PBG in full visible region with less deformation of the PBG based on smart materials of ferroelectric liquid crystal doped CLC (FLC-CLC) integrating with electrothermal film heaters. Experimental results show that the reflective color of the FLC-CLC can be low-voltage-tuned through entire visible region. The induced temperature change is induced by electrically heating the electrothermal film heaters at low voltages at near the smectic-CLC transition temperature. Coaxial electrospinning can be used to develop smart fibrous devices with FLC/CLC-core and polymer-shell which color is tunable in full visible region at low voltages.

Paper Details

Date Published: 8 February 2018
PDF: 7 pages
Proc. SPIE 10555, Emerging Liquid Crystal Technologies XIII, 105550B (8 February 2018); doi: 10.1117/12.2290044
Show Author Affiliations
Jia-De Lin, National Cheng Kung Univ. (Taiwan)
Jyun-Wei Lin, National Cheng Kung Univ. (Taiwan)
Chia-Rong Lee, National Cheng Kung Univ. (Taiwan)


Published in SPIE Proceedings Vol. 10555:
Emerging Liquid Crystal Technologies XIII
Liang-Chy Chien, Editor(s)

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