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Optical approach to improve the γ curve in a vertical-alignment liquid-crystal cell

机译:改善垂直取向液晶盒中γ曲线的光学方法

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In this Letter, we propose an optical configuration of a four-domain vertical-alignment (VA) liquid-crystal (LC) cell, which can improve the γ-curve distortion by using a pair of patterned A plates, without any change in cell structure. In order to find the optimal parameter value of the patterned A film, we calculated the polarization difference between the normal direction and the all-viewing direction as functions of the optical axes and the retardation (Δnd) under the voltage applied state. Based on the calculated results, the proposed LC cell showed an improvement in γ-curve distortion of more than 80% in each oblique viewing angle compared to a conventional wide-view VA LC cell, without any loss of optical performance in the dark state.
机译:在这封信中,我们提出了一种四域垂直排列(VA)液晶(LC)液晶盒的光学配置,该光学配置可以通过使用一对图案化的A板来改善γ曲线畸变,而无需对液晶盒进行任何更改结构体。为了找到构图的A膜的最佳参数值,我们计算了法向和全视向之间的偏振差,它们是光轴和电压施加状态下的延迟(Δnd)的函数。根据计算结果,与常规的宽视角VA LC电池相比,提出的LC电池在每个倾斜视角中的γ曲线畸变均改善了80%以上,而在黑暗状态下光学性能没有任何损失。

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