公开(公告)号：US07423708B2

公开(公告)日：2008-09-09

申请号：US11189515

申请日：2005-07-26

申请人： Michael F. Weber ,  Olester Benson, Jr. ,  Sanford Cobb, Jr. ,  James M. Jonza ,  Andrew J. Ouderkirk ,  David L. Wortman ,  Carl A. Stover

发明人： Michael F. Weber ,  Olester Benson, Jr. ,  Sanford Cobb, Jr. ,  James M. Jonza ,  Andrew J. Ouderkirk ,  David L. Wortman ,  Carl A. Stover

IPC分类号： G20F1/1335

CPC分类号： G02F1/13362 ,  A47J36/28 ,  B29C55/023 ,  B29D11/00 ,  B29K2995/003 ,  B29K2995/0034 ,  B32B7/02 ,  B32B27/08 ,  B32B27/36 ,  G02B5/3025 ,  G02B5/305 ,  G02B5/3083 ,  G02B27/283 ,  G02F1/133536 ,  G02F1/133606 ,  G02F2001/133507 ,  G02F2001/133545 ,  G02F2001/133607

摘要： A multiple layer reflective polarizer 12 is described. This element is placed between and optical cavity 24 and an LCD module 16 to form an optical display. The reflective polarizer reflects some light into the optical cavity 24 where it is randomized and may ultimately emerge with the correct polarization to be transmitted out of the display.

摘要翻译： 描述了多层反射偏振器12。 该元件放置在光腔24和LCD模块16之间以形成光学显示器。 反射偏振器将一些光反射到光腔24中，在其中它被随机化，并且可能最终以正确的偏振出现以被传送出显示器。

公开(公告)号：US07417700B2

公开(公告)日：2008-08-26

申请号：US11859167

申请日：2007-09-21

申请人： Yong-Kyu Jang ,  Won-Sang Park ,  Jae-Hyun Kim ,  Sang-Woo Kim ,  Sung-Eun Cha ,  Jae-Young Lee

发明人： Yong-Kyu Jang ,  Won-Sang Park ,  Jae-Hyun Kim ,  Sang-Woo Kim ,  Sung-Eun Cha ,  Jae-Young Lee

IPC分类号： G20F1/1335

CPC分类号： G02F1/13363 ,  G02F1/133555 ,  G02F2001/133562 ,  G02F2001/133567 ,  G02F2001/133638 ,  G02F2001/1398 ,  G02F2413/04 ,  G02F2413/08

摘要： A liquid crystal display panel includes a liquid crystal layer having a twist angle of ±10 degree. An upper polarizer is disposed over an upper substrate of the liquid crystal display panel, and includes an absorption axis forming at an angle of 47±10 degree in a clockwise direction with respect to a major axis. An upper λ/2 retardation film is disposed between the upper substrate and the upper polarizer, and includes Δnd1 of 260±10 nm and a slow axis forming at an angle of 166±10 degree in the clockwise direction with respect to the absorption axis. An upper λ/4 retardation film is disposed between the upper substrate and the upper λ/2 retardation film, and includes Δnd2 of 140±10 nm and a slow axis forming at an angle of 111±10 degree in the clockwise direction with respect to the absorption axis. Therefore, the optical condition of the optical film assembly is optimized to improve an image display quality.

公开(公告)号：US07714956B2

公开(公告)日：2010-05-11

申请号：US11009788

申请日：2004-12-10

申请人： Yutaka Sawayama ,  Yukihiro Sumida ,  Takeshi Masuda ,  Tsuyoshi Ebi

发明人： Yutaka Sawayama ,  Yukihiro Sumida ,  Takeshi Masuda ,  Tsuyoshi Ebi

IPC分类号： G20F1/1335

CPC分类号： G02B6/0025 ,  G02B6/002 ,  G02B6/0038 ,  G02B6/0043 ,  G02B6/005 ,  G02B6/0056 ,  G02B6/0065 ,  G02B6/0076 ,  G02F1/133504 ,  G02F1/133615 ,  G02F2001/133616 ,  G02F2001/133626

摘要： A front-illuminating device of the present invention, which is placed over the entire surface of an object to be illuminated such as a reflection-type liquid crystal display device when it is used, is provided with a light source and a light-directing body. The light-directing body has an incident surface on which light from the light source (light-source light) is made incident, a first light-releasing surface for releasing the light toward the object to be illuminated, and a second light-releasing surface which faces the first light-releasing surface and releases reflected light from the object to be illuminated. The second light-releasing surface is formed into a step shape in which slanting portions and flat portions are alternately placed. The light source light, released from the first light-releasing surface to the object to be illuminated, is reflected by the object to be illuminated and the reflected light is allowed to reach the observer from the first light-releasing surface through the flat portions. In this case, among the light-source light rays, the light components progressing in parallel with the flat portions are reflected by the slanting portions and directed to the object to be illuminated. Consequently, the present invention makes it possible to provide a brighter front-illuminating device in which the efficiency of use of the light-source light is improved.

摘要翻译： 本发明的前照明装置设置有光源和导光体，该前照灯装置放置在被照射物体的整个表面上，例如反射型液晶显示装置， 。 导光体具有使来自光源的光（光源光）入射的入射面，用于将光朝向被照射物体释放的第一发光面和第二光释放面 其面向第一光释放表面并且释放来自被照明物体的反射光。 第二光释放表面形成为倾斜部分和平坦部分交替放置的台阶形状。 从第一光释放表面释放到被照射物体的光源光被被照射物体反射，并且允许反射光通过平坦部分从第一光释放表面到达观察者。 在这种情况下，在光源光线中，与平坦部分平行进行的光分量被倾斜部分反射并被引导到要照明的对象。 因此，本发明使得可以提供其中光源光的使用效率提高的更亮的前照明装置。