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    • 91. 发明申请
    • Liquid crystal display device
    • 液晶显示装置
    • US20070019120A1
    • 2007-01-25
    • US11333546
    • 2006-01-18
    • Yasutoshi TasakaMasakazu ShibasakiYohei NakanishiHidefumi YoshidaTsuyoshi KamadaKazuya UedaHideaki Tsuda
    • Yasutoshi TasakaMasakazu ShibasakiYohei NakanishiHidefumi YoshidaTsuyoshi KamadaKazuya UedaHideaki Tsuda
    • G02F1/1343
    • G02F1/1393G02F1/133707G02F1/133753
    • A liquid crystal display device includes a pair of substrates; a liquid crystal sealed between the substrates; plural pixel regions each having a first pixel electrode formed on one of the pair of substrates and a second pixel electrode separated from the first pixel electrode; a TFT having a source electrode which is electrically connected to the first pixel electrode; a control capacitance portion which has a control capacitance electrode electrically connected to the source electrode and opposed to at least part of the second pixel electrode via an insulating film, and which thereby establishes capacitive coupling between the source electrode and the second pixel electrode; linear projections formed on the other substrate; and apertures formed in the first and second pixel electrodes so as to occupy parts of overlap regions of the linear projections and the first and second pixel electrodes as viewed perpendicularly to the substrate surfaces, for controlling the positions of singular points of alignment vectors of the liquid crystal.
    • 液晶显示装置包括一对基板; 密封在基板之间的液晶; 多个像素区域,每个具有形成在所述一对基板中的一个基板上的第一像素电极和与所述第一像素电极分离的第二像素电极; TFT,其具有电连接到第一像素电极的源电极; 控制电容部,其具有与所述源电极电连接并且经由绝缘膜与所述第二像素电极的至少一部分相对的控制电容电极,由此建立所述源电极和所述第二像素电极之间的电容耦合; 形成在另一基板上的线状突起; 以及形成在第一和第二像素电极中的孔,以便占据垂直于衬底表面观察的直线突起和第一和第二像素电极的重叠区域的一部分,以控制液体的取向矢量的奇异点的位置 水晶。
    • 96. 发明申请
    • Liquid crystal display device
    • 液晶显示装置
    • US20060055856A1
    • 2006-03-16
    • US11267839
    • 2005-11-04
    • Kunihiro TashiroKatsufumi OhmuroNorio SugiuraHidefumi Yoshida
    • Kunihiro TashiroKatsufumi OhmuroNorio SugiuraHidefumi Yoshida
    • G02F1/1337
    • G02F1/133553G02B5/3083G02F1/133528G02F1/13363G02F1/133634G02F2001/133638G02F2202/40G02F2203/02G02F2413/03G02F2413/07G02F2413/08
    • A liquid crystal display device of the present invention is composed of a λ/4 plate 1, a λ/2 plate 2, and a polarizing plate 3 which are provided in this order from the side of a liquid crystal layer 10. Here, an angle formed between an absorption axis of the polarizing plate 3 and an absorption axis of the λ/2 plate 2 is about 45°, an in-plane retardation of the λ/2 plate 2 is set to a value obtained by adding λ/4 to an in-plane retardation of a retardation plate 1, desirably, the λ/4 plate 1, and an optical axis of the λ/4 plate 1 and an optical axis of the λ/2 plate 2 are orthogonal to each other. In this configuration, the optical axis of the λ/4 plate 1 is placed at 150°, the optical axis of the λ/2 plate 2 is placed at 60°, and the absorption axis of the polarizing plate 3 is placed at 15°. This configuration improves display characteristics, that is, performs bright display at a higher contrast ratio and in a wider viewing angle with less dependence on visual field, thereby realizing an excellent reflection-type liquid crystal display device that is very easy to view even in a relatively dim place such as an indoor environment.
    • 本发明的液晶显示装置由从液晶层10一侧依次设置的λ/ 4板1,λ/ 2板2和偏光板3构成。这里, 偏振板3的吸收轴与λ/ 2板2的吸收轴之间形成的角度为约45°,λ/ 2板2的面内相位差设定为通过将λ/ 4 相对于相位差板1的面内延迟,理想的是λ/ 4板1,λ/ 4板1的光轴和λ/ 2板2的光轴彼此正交。 在该结构中,将λ/ 4板1的光轴配置在150°,将λ/ 2板2的光轴配置在60°,将偏光板3的吸收轴置于15° 。 这种配置改善了显示特性,即以较低的对比度和更宽的视角执行明亮的显示,对视场的依赖性较小,从而实现了一种极好的反射型液晶显示装置,即使在 相对昏暗的地方,如室内环境。