公开(公告)号：US06369950B1

公开(公告)日：2002-04-09

申请号：US09703658

申请日：2000-11-02

申请人： Seiji Umemoto

发明人： Seiji Umemoto

IPC分类号： G02B27110

CPC分类号： G02B6/0038 ,  G02F1/133615 ,  Y10S385/901

摘要： In a liquid-crystal display device, a light pipe including an upper surface, a lower surface opposite to the upper surface, an incidence side surface, and a light output means formed in the upper surface is provided, the light pipe has a retardation of not larger than 40 nm between the upper and lower surfaces. Further, a light source is disposed on the incidence side surface, a reflection layer is disposed on the lower surface, and a liquid-crystal shutter is disposed on the upper surface and includes a liquid-crystal cell and at least one polarizer. Light incident on the incidence side surface from the light source goes out from the lower surface through the light output means, the outgoing light is then reflected on the reflection layer, and the reflected light is then transmitted through the light pipe so as to go out from the upper surface finally.

摘要翻译： 在液晶显示装置中，设有包括上表面，与上表面相对的下表面，入射侧表面和形成在上表面中的光输出装置的光管，光管具有延迟 在上表面和下表面之间不大于40nm。 此外，在入射侧表面上设置光源，在下表面上设置反射层，在上表面设置液晶快门，并且包括液晶单元和至少一个偏振片。 从光源入射到入射侧表面的光通过光输出装置从下表面出射，然后将出射光在反射层上反射，然后反射光透过光管，以便外出 从上面最后。