A wide-color-gamut electrically-switchable color device with polymer-stabilized cholesteric liquid crystal (Conference Presentation)

Vinay Joshi; Daniel A. Paterson; John M. D. Storey; Corrie T. Imrie; Liang-Chy Chien

doi:10.1117/12.2508851

13 March 2019 A wide-color-gamut electrically-switchable color device with polymer-stabilized cholesteric liquid crystal (Conference Presentation)

Vinay Joshi, Daniel A. Paterson, John M. D. Storey, Corrie T. Imrie, Liang-Chy Chien

Author Affiliations +

Proceedings Volume 10941, Emerging Liquid Crystal Technologies XIV; 109410K (2019) https://doi.org/10.1117/12.2508851
Event: SPIE OPTO, 2019, San Francisco, California, United States

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.

Conference Presentation

Citation Download Citation

Vinay Joshi, Daniel A. Paterson, John M. D. Storey, Corrie T. Imrie, and Liang-Chy Chien "A wide-color-gamut electrically-switchable color device with polymer-stabilized cholesteric liquid crystal (Conference Presentation)", Proc. SPIE 10941, Emerging Liquid Crystal Technologies XIV, 109410K (13 March 2019); https://doi.org/10.1117/12.2508851

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