Fast flexoelectric switching in a cholesteric liquid crystal cell with surface-localized polymer network
摘要：
We developed an electro-optical device based on the flexoelectric effect of a polymer-stabilized cholesteric liquid crystal with a uniform lying helix. Using a dual-frequency switchable nematic, a small amount of chiral dopant and a small amount of phase-separated polymer localized at the substrate surfaces, we were able to create a device that operates in both the amplitude (flexoelectric) and phase (dielectric) modes. Using a high-frequency voltage we were able to suppress the phase mode and preserve the amplitude mode.
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关键词：
Practical, Experimental/ cholesteric liquid crystals electro-optical switches flexoelectricity liquid crystal devices phase separation polymer dispersed liquid crystals/ electro-optical device flexoelectric switching cholesteric liquid crystal cell surface localization polymer network dual-frequency switchable nematic chiral dopant phase separation phase mode amplitude mode dielectric modes high frequency voltage/ B4150D Liquid crystal devices B4150 Electro-optical devices
DOI：
10.1088/0022-3727/42/19/195102
被引量：
年份：
2009
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