Abstract
뽀앙카레 공에서 액정셀의 전기광학적 편광투과특성을 분석하고, 이를 바탕으로 여러 파장에 대해 액정표시소자의 밝기와 명암대비를 최적화하는 위상판의 규격을 정하는 기본조건을 찾았다. 이 조건에 따르면 두 파장에 대해서는 분산특성이 적절하게 조절된 위상판 2매, 세 파장의 경우에는 두 파장으로 근사하거나 위상판 3매가 필요하다. We analyze the electro-optic polarization transmission characteristics of liquid crystal cells in the Poincare sphere representation. We determine fundamental conditions on maximizing of brightness and contrast ratio of liquid crystal display devices for polychromatic light by use of retardation films. For optimizing two colors, at least two properly designed retardation films are needed, and for three wavelengths, either it can be approximated to the two-color case or three retardation films are needed.
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