Light Leakage Behaviors of Homogenously Aligned Liquid Crystal Layers Placed between Crossed Polarizers

概要

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We investigated the light leakage behaviors homogeneously aligned liquid crystal layers placed between crossed polarizers using a backlight unit with diffused light to reduce the transmittance in the black state in in-plane liquid crystal displays. The light leakage intensity was clearly proportional to a specific variable ($S_{\text{cell}}$) consisting of the ordinary refractive index $n_{\text{o}}$, the extraordinary refractive index $n_{\text{e}}$, their difference $\Delta n$, the elastic constant $K$, and the thickness of the liquid crystal layers $d$. A high elastic constant and a low $\Delta n$ can result in a low light leakage intensity.
2008-04-25