Applied Physics Letters · 1974 · 37 citations · 3 references
Natural SciencesMaterials EngineeringMaterials ScienceMicrofabricationSurface ChemistrySurface ScienceDisplay DesignDisplay TechnologiesLiquid Crystal MaterialsLiquid CrystalsSurface CrystallographyContrastContrast RatioLiquid Crystal AlignmentLiquid Crystal DisplaysLiquid Crystal Surface AlignmentMechanical Alignment MechanismsNematic Liquid CrystalsOptical-mechanical Alignment
Twisted nematic displays have been constructed in areas up to 36 square inches. Alignment of the liquid crystals was achieved by the oblique evaporation of silicon monoxide or gold. The surface deposits were examined by electron microscopy which indicated that mechanical alignment occurred due to the presence of islands and holes on the surface. It was found that the contrast ratio of the display decreased as the evaporating angle decreased.
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