1 November 2001 Quantitative prediction of the modulation behavior of twisted nematic liquid crystal displays based on a simple physical model
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Optical Engineering, 40(11), (2001). doi:10.1117/1.1412228
Abstract
A method to perform a predictive search for a given amplitude and phase modulation response in twisted nematic liquid crystal displays is presented. The algorithm is based on a simple physical model that we recently proposed and that considers the effect of liquid-crystal layers located in the vicinity of the edges, which are not able to tilt. This model was demonstrated to explain accurately the experimental transmittance modulation curves. Here the model is applied to perform a predictive search for an optimized modulation by changing the input and output polarization configurations. A generalized configuration to generate and detect elliptically polarized light is proposed. The method is applied for seeking two different configurations useful for optical image processors: phase-only modulation and amplitude-only modulation. The excellent agreement with the experimental measurements validates the potential of the proposed method.
Andres Marquez, Claudio C. Iemmi, Ignacio Soriano Moreno, Jeffrey A. Davis, Juan Campos, Maria Josefa Yzuel, "Quantitative prediction of the modulation behavior of twisted nematic liquid crystal displays based on a simple physical model," Optical Engineering 40(11), (1 November 2001). http://dx.doi.org/10.1117/1.1412228
JOURNAL ARTICLE
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KEYWORDS
LCDs

Modulation

Wave plates

Phase shift keying

Polarizers

Liquid crystals

Phase modulation

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