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    • 76. 发明授权
    • High contrast reflective light valve
    • 高对比度反光灯
    • US06836309B2
    • 2004-12-28
    • US09727092
    • 2000-11-30
    • James AndersonMichael Stefanov
    • James AndersonMichael Stefanov
    • G02F11337
    • G02F1/133528G02F1/133711G02F2001/133562G02F2001/133567G02F2001/133742
    • The invention involves a novel method and structure for utilizing homeotropic vertically aligned nematic liquid crystal cells in the production of high contrast microdisplays. Two circular polarizers are used in order to propagate circularly polarized, rather than planar polarized, light through a liquid crystal cell. The use of circularly polarized light eliminates the liquid crystal director alignment requirements for the transmittance of light necessary for planar polarized light. With no director alignment requirement, it is possible to use perfectly homeotropic vertically aligned nematic cells irrespective of domain size and shape because fringing field induced director tilt will not decrease the transmittance of the liquid crystal cell.
    • 本发明涉及在生产高对比度微显示器中利用垂直排列向列型液晶单元的新颖方法和结构。 使用两个圆偏振器以便通过液晶单元传播圆偏振而不是平面偏振光。 使用圆偏振光消除了平面偏振光所需的光的透射率的液晶指向器对准要求。 在没有导向器对准要求的情况下,与领域尺寸和形状无关,可以使用完全垂直排列的向列单元,因为边缘场感应导向器倾斜不会降低液晶单元的透射率。