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Liquid crystal display with improved viewing angle dependence

机译:具有改善的视角依赖性的液晶显示器

摘要

A liquid crystal display having satisfactory visibility in a wide viewing angle range is provided. A TFT array substrate of the liquid crystal display includes scanning electrodes and signal electrodes arranged in a matrix shape, thin-film transistors respectively disposed at intersections between the scanning electrodes and the signal electrodes, first pixel electrodes respectively connected to the signal electrodes via the thin-film transistors, connecting capacitor electrodes formed in a layer including gate electrodes of the thin-film transistors, and second pixel electrodes capacitively connected to the first pixel electrodes via the connecting capacitor electrodes. It is not necessary to use any additional process to form the second electrodes, leading to advantages that the product yield is improved and production cost is lowered. Each pixel is divided into plural areas having different directions of orientation and into plural areas being applied with different voltages. Due to existence of the areas having different directions of orientation, there is attained a vertically symmetric transmittivity characteristic. Moreover, adjusting the surface ratio and the application voltage ratio between the areas to be applied with different voltages, there are attained an advantageous effect that viewing angle dependence is relaxed in the low gradation presentation and visibility is improved.
机译:提供了一种在宽视角范围内具有令人满意的可见性的液晶显示器。液晶显示器的TFT阵列基板包括:扫描电极和以矩阵形状排列的信号电极;分别设置在扫描电极和信号电极之间的交叉点处的薄膜晶体管;第一像素电极,通过薄壁分别与信号电极连接。 -薄膜晶体管,连接形成在包括薄膜晶体管的栅电极的层中的电容器电极,和经由连接电容器电极电容性地连接到第一像素电极的第二像素电极。不需要使用任何额外的工艺来形成第二电极,从而带来的优点是,提高了产品产量并且降低了生产成本。每个像素被分成具有不同取向方向的多个区域和被施加不同电压的多个区域。由于存在具有不同取向方向的区域,因此获得了垂直对称的透射率特性。此外,通过调节要被施加不同电压的区域之间的表面比率和施加电压比率,获得了有利的效果,即,在低灰度呈现中,视角依赖性得到缓和并且可视性得到了改善。

著录项

  • 公开/公告号US5777700A

    专利类型

  • 公开/公告日1998-07-07

    原文格式PDF

  • 申请/专利权人 NEC CORPORATION;

    申请/专利号US19960696100

  • 发明设计人 KEN SUMIYOSHI;YORIKO HATADA;SETSUO KANEKO;

    申请日1996-08-14

  • 分类号G02F1/133;G02F1/1343;

  • 国家 US

  • 入库时间 2022-08-22 02:39:09

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