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A wide-color-gamut electrically-switchable color device with polymer-stabilized cholesteric liquid crystal (Conference Presentation)
Author(s): Vinay Joshi; Daniel A. Paterson; John M. D. Storey; Corrie T. Imrie; Liang-Chy Chien
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Paper Abstract

A wide spectra color-reflective device based on polymer-sustained conical helix (PSCH) of cholesteric liquid crystal (CLC) is demonstrated. The phase-separated three-dimensional polymer network transcribes the helicoidal structure of a CLC and sustains the deformation of helices by the external electric field for wide spectrum turning. Besides the selective reflection of light, the device also demonstrates light-scattering focal conic texture in off-state and transparent homeotropic state at high electric field. The new electro-chromic devices with PSCH that can reversibly change of wide-range colors in response to ascending and descending of electric field are promising in various fields including smart windows, sensors, displays, and camouflage applications.

Paper Details

Date Published: 13 March 2019
Proc. SPIE 10941, Emerging Liquid Crystal Technologies XIV, 109410K (13 March 2019); doi: 10.1117/12.2508851
Show Author Affiliations
Vinay Joshi, Kent State Univ. (United States)
Daniel A. Paterson, Univ. of Aberdeen (United Kingdom)
John M. D. Storey, Univ. of Aberdeen (United Kingdom)
Corrie T. Imrie, Univ. of Aberdeen (United Kingdom)
Liang-Chy Chien, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 10941:
Emerging Liquid Crystal Technologies XIV
Liang-Chy Chien; Dirk J. Broer; Igor Muševič; Byoungho Lee, Editor(s)

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