Modern thin-film-transistor-driven twisted nematic (TN) products on the market require thin cell gaps below the value to satisfy the condition of the Gooch-Tarry first minimum in transmission for fast response times and wide viewing angles. For the first time to our knowledge, we have developed a simple experimental method based on a new configuration of out-of-plane cell rotation and analyzed our data by extended Jones matrix method to obtain accurate pretilt angles for such thin TN cells where the well-accepted configuration of the out-of-plane cell rotation method analyzed by Birecki and Kahn [The Physics and Chemistry of Liquid Crystal Devices (1980), p. 115] was insufficient to address.
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机译：市场上的现代薄膜晶体管驱动的扭曲向列（TN）产品要求低于该值的薄单元间隙才能满足Gooch-Tarry透射率第一最小值的条件，以实现快速响应时间和宽视角。据我们所知，我们首次开发了一种基于平面外细胞旋转新配置的简单实验方法，并通过扩展琼斯矩阵方法分析了我们的数据，从而获得了此类薄TN细胞的准确预倾角。 Birecki和Kahn [Liquid Crystal Devices Physics and Chemistry of Liquid Crystal Devices（1980），p。157-255）分析了面外单元旋转方法的结构。 115]不足以解决。
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