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Electrical Modeling of Tristate Antiferroelectric Liquid Crystal Devices

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SPIE. The International Society For Optical Engineering

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To cite this item, use the following identifier: https://hdl.handle.net/10016/19599

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

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Proocedings of: 3rd International Workshop on Liquid Crystal for Photonics (LCP2010). Elche (Alicante), Spain. September 8-10, 2010
Copyright 2011 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

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Optical Engineering (2011), 50 (8).

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