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Abstract
The influence of the surface polarization, Ps , on a nematic liquid crystal (NLC) cell is investigated analytically. Flexoelectric polarization is considered, but selective ion absorption is ignored. The differential equations are derived for tilt angle, θ, of director n and the corresponding boundary conditions based on Gibbs free energy, and their solutions discussed. Equations for the reduced threshold voltage, uth , and the reduced saturation voltage, usat , are deduced and the relationships between uth , usat and reduced strength of surface polarization, p, derived.
Acknowledgements
This project was supported by the Natural Science Foundation of Hebei Province under Grant No. C2005000011.