Publication
Journal of Applied Physics
Paper

Influence of thickness and conductivity of alignment layers on the bistability of ferroelectric liquid-crystal devices

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Abstract

The bistability conditions on both the thickness and conductivity of the alignment layers as a function of spontaneous polarization and other cell parameters for ferroelectric liquid-crystal devices have been obtained analytically based on a uniform switching model. It is found that there exists a practical threshold conductivity of the alignment layers, above which good bistability can be obtained. Below this threshold conductivity, there exists a critical total alignment-layer thickness, below which bistability can be achieved. For the latter case, the two quantities depend linearly on each other, with a coefficient increasing monotonically with cell thickness, the difference between the ratio of the square of the spontaneous polarization to the rotational viscosity, and the conductivity of the liquid crystal.

Date

01 Dec 1991

Publication

Journal of Applied Physics

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