Curved vertical‐alignment liquid crystal display with uniform brightness: From pixel design to verification,Journal of the Society for Information Display

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Curved vertical‐alignment liquid crystal display with uniform brightness: From pixel design to verification
Journal of the Society for Information Display ( IF 1.7 ) Pub Date : 2020-04-07 , DOI: 10.1002/jsid.885
Jie Cao ₁ , Jianhong Chen ₁ , Peng Du ₁ , Jianjian Ying ₁ , Tien‐Chun Huang ₁ , Lixuan Chen ₁ , Bin Zhao ₁ , Xin Zhang ₁

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Curved liquid crystal display (LCD) suffers from an issue of uneven brightness among the vertical‐alignment LCD panels based on thin glass substrates. In this work, we investigated its origin through optical simulation and successfully realized uniform brilliance for 27‐inch curved LCD panels. The optical simulation revealed that the dark areas on the bending sides of the curved LCD panel originated from the reduced azimuth angle of the liquid crystals (LC) next to the ITO trunk. This issue could be resolved by decreasing the pretilt angle of the LC on the color filter side. Through developing pretilt angle tuning technologies, we experimentally verified that the uniform brilliance could be achieved for 27‐inch curved LCD panels with 900‐mm curvature on thin glass substrates.

中文翻译：

弯曲的垂直排列液晶显示器，亮度均匀：从像素设计到验证

在基于薄玻璃基板的垂直取向LCD面板中，弯曲液晶显示器（LCD）遭受亮度不均匀的问题。在这项工作中，我们通过光学模拟研究了其起源，并成功实现了27英寸曲面LCD面板的均匀亮度。光学模拟表明，弯曲的LCD面板的弯曲侧上的暗区起因于ITO干线旁边液晶（LC）的减小的方位角。此问题可以通过减小彩色滤光片侧LC的预倾斜角来解决。通过开发预倾角调谐技术，我们通过实验验证了在薄玻璃基板上具有900mm曲率的27英寸曲面LCD面板可以实现均匀的亮度。

更新日期：2020-04-07

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