公开(公告)号：US5903329A

公开(公告)日：1999-05-11

申请号：US881371

申请日：1997-06-24

申请人： Hidefumi Yoshida ,  Makoto Ohashi ,  Ikuo Tomita

发明人： Hidefumi Yoshida ,  Makoto Ohashi ,  Ikuo Tomita

IPC分类号： G02F1/133 ,  G02F1/1333 ,  G02F1/1334 ,  G02F1/1335 ,  G02F1/137 ,  G02F1/13

CPC分类号： G02F1/133514 ,  G02F1/1334 ,  G02F1/13737 ,  G02F2001/13756

摘要： A reflective type liquid crystal display device including a layer of liquid crystal having a light scattering property such as a polymer dispersed type liquid crystal or a phase change type liquid crystal. The layer of liquid crystal is arranged between first and second plates having transparent electrodes, respectively, the first plate being transparent and the second plate having a reflecting layer. A color filter including red, green, and blue color portions and a black color portion, and an internal transparent plate having a thickness to provide a sufficient distance between the layer of liquid crystal and the color filter to diffuse the appearance of the color filter viewed through the scattering liquid crystal in the light scattering mode are also placed between the first and second plates. The layer of liquid crystal having light scattering property is brought into a light scattering mode to produce a white display when the voltage is not applied, and into a transparent mode to produce a color display and a black display when the voltage is applied.

摘要翻译： 一种反射型液晶显示装置，包括具有光散射性的液晶层，例如聚合物分散型液晶或相变型液晶。 液晶层分别布置在具有透明电极的第一和第二板之间，第一板是透明的，第二板具有反射层。 包括红色，绿色和蓝色部分和黑色部分的滤色器和具有厚度以在液晶层和滤色器之间提供足够距离的内部透明板，以扩散滤色镜的外观 通过散射光散射模式的散射液晶也放置在第一和第二板之间。 具有光散射特性的液晶层进入光散射模式，当不施加电压时产生白色显示，并且当施加电压时，进入透明模式以产生彩色显示和黑色显示。

公开(公告)号：US4904058A

公开(公告)日：1990-02-27

申请号：US257010

申请日：1988-10-13

申请人： Shoichi Kato ,  Kaoru Arai ,  Ikuo Tomita

发明人： Shoichi Kato ,  Kaoru Arai ,  Ikuo Tomita

IPC分类号： G02F1/13363 ,  G02F1/1347 ,  G02F1/139

CPC分类号： G02F1/13471 ,  G02F1/133636 ,  G02F1/1397

摘要： A double-layered super-twisted nematic liquid crystal display panel, comprising a drive cell having a first liquid crystal layer and control electrodes, and a compensator cell having a second liquid crystal layer. In the first aspect, the first and second liquid crystal layers have the same twist angle in reverse directions and the first liquid crystal layer has a product .DELTA.n.d of a birefringence .DELTA.n and a panel thickness d 1.02-1.20 times larger than that of the second liquid crystal layer. In the second aspect, the second liquid crystal layer has a twist angle larger than that of the second liquid crystal layer by 150.degree.-210.degree., preferably about 180.degree..