A series of experimental data is presented on the switching of nematic liquid crystals with high twist, high tilt director configurations for step-voltage and pulse-voltage addressing. In order to describe the observed phenomena using a simple model containing a single viscosity coefficient only, we introduce an empirical correction to the rotational viscosity coefficient γ. The description appears adequate for step-voltage addressing but less so in the case of decay under specific pulse-voltage addressing conditions. Possible reasons are discussed.
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Sprang et al. (1988) studied this question.
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