Electrical modeling of tristate antiferroelectric liquid crystal devices

Juan Carlos Torres Zafra; Isabel A. Pérez Garcilópez; Virginia Urruchi del Pozo; José M. Sánchez Pena; Carlos Marcos Lucas

doi:10.1117/1.3564817

1 August 2011 Electrical modeling of tristate antiferroelectric liquid crystal devices

Juan Carlos Torres Zafra, Isabel A. Pérez Garcilópez, Virginia Urruchi del Pozo, José M. Sánchez Pena, Carlos Marcos Lucas

Author Affiliations +

Optical Engineering, Vol. 50, Issue 8, 081206 (August 2011). https://doi.org/10.1117/1.3564817

Abstract

A new electrical equivalent circuit (EEC) has been proposed to model antiferroelectric liquid crystal devices. This circuit includes a constant phase element to take into account the ferroelectric part of the dielectric response in these devices. Electrical characterization of samples has been carried out using a specific experimental protocol based on impedance spectroscopy. The parameters of waveforms used in impedance measurements have been optimized. The procedure to obtain the components of the EEC has also been explained. Finally, the EEC has been validated by comparing experimental and simulated impedance results. A reasonable agreement between both of them has been obtained in a wide frequency range for all selection voltages.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Juan Carlos Torres Zafra, Isabel A. Pérez Garcilópez, Virginia Urruchi del Pozo, José M. Sánchez Pena, and Carlos Marcos Lucas "Electrical modeling of tristate antiferroelectric liquid crystal devices," Optical Engineering 50(8), 081206 (1 August 2011). https://doi.org/10.1117/1.3564817

Published: 1 August 2011

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