Controlled decay of electrically induced deformations in nematic liquid crystals |
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Authors: | G Baur A Stieb G Meier |
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Institution: | 1. Institut für Angewandte Festk?rperphysik, Fraunhofer-Gesellschaft, D-7800, Freiburg, Germany
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Abstract: | The transient behavior of electrically induced deformations of parallel oriented nematic liquid crystal layers was investigated.
The nematic material used was a mixture of disubstituted benzoyloxybenzoic acid esters the dielectric anisotropy of which
is positive at dc and low frequencies, and changes sign in the kHz range. The decay time of a deformation induced by a low
frequency field can be considerably reduced by switching the frequency to the range where the dielectric anisotropy is negative.
This effect becomes even more pronounced for higher viscosities. |
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Keywords: | Liquid crystals Electrooptic effects |
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