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

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 p...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of applied physics 1991-06, Vol.69 (12), p.8399-8401
1. Verfasser: CHIEU, T. C
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.347404