A Novel Method for Measuring the Difference in Flexoelectric Coefficients of Nematic Liquid Crystals

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Abstract:

The difference between e1 and e3 parameters for flexoelectric polarization, as originally defined byMeyer, is measured for nematic liquid crystal materials E7 and BL087 in Twisted Nematic (TN) cells with In-Plane Switching (IPS) electric fields using the crystal rotation method, which measures transmission as a function of angle of incidence. Values of e1 − e3 for E7 and BL087 are found to be 7.2±1.0 pCm−1 and 9.4±1.0 pCm−1 respectively.

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Solid State Phenomena (Volumes 181-182)

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26-32

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November 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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