公开(公告)号：US06364497B1

公开(公告)日：2002-04-02

申请号：US09673696

申请日：2000-10-17

申请人： Euk-Byoung Park ,  Jong-Hun Kim ,  Hoon-Soon Lee ,  Yoon-Keun Lee ,  Jeong-Su Yu

发明人： Euk-Byoung Park ,  Jong-Hun Kim ,  Hoon-Soon Lee ,  Yoon-Keun Lee ,  Jeong-Su Yu

IPC分类号： F21V704

CPC分类号： G02B6/0053 ,  G02B6/0051 ,  G02B6/0056 ,  G02F2001/133507 ,  G02F2001/133607

摘要： A backlight system for use in display devices including liquid crystal displays, or in advertising means or in lighting devices includes one or more light sources, a light-glide panel, a light reflecting film, an anisotropic light diffusing film, and a light collimating film. A light source is positioned at one or more edges of the light-guide panel in a predetermined direction. A light reflecting film is placed below the light-guide panel. An anisotropic light diffusing film is placed over the light-guide panel. The anisotropic light diffusing film has directionally different diffusing properties. The light collimating film has a top surface and a smooth bottom surface. The top surface of the light collimating film includes a lenticular layer extending in a predetermined direction. The lenticular layer has a plurality of linear prisms. A reflective polarizer can be employed over the light collimating film.

摘要翻译： 用于包括液晶显示器或广告装置或照明装置的显示装置中的背光系统包括一个或多个光源，光滑面板，光反射膜，各向异性光漫射膜和光准直膜 。 光源被定位在导光板的一个或多个边缘沿预定方向。 光反射膜放置在导光板的下方。 将各向异性光漫射膜放置在导光板上。 各向异性光漫射膜具有定向不同的扩散性质。 光准直膜具有顶表面和光滑的底表面。 光准直膜的上表面包括沿预定方向延伸的透镜状层。 透镜层具有多个线性棱镜。 可以在光准直膜上使用反射偏振器。