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Elimination of Fabry-Perot Effect in 4×4 Propagation Matrix Method and Its Application to Liquid Crystal Displays

In the conventional 4×4 wave propagation matrix method, Fabry-Perot effects occur for monochromatic light because of the inherent multiple reflections at the interfaces. However, Fabry-Perot effects are not present in the usual liquid crystal device employing an incoherent light source. We present a simple method to eliminate the Fabry-Perot effects in the 4×4 propagation matrix method. The method gives the exact optical field corresponding to a single reflection at the interfaces. The results are applied to modeling the electrooptics of liquid crystal displays without the Fabry-Perot (FB) effects.