发明授权
US06788359B2 Method for illuminating liquid crystal display device, a back-light assembly for performing the same, and a liquid crystal display device using the same
有权
用于照亮液晶显示装置的方法,用于执行该方法的背光组件以及使用其的液晶显示装置
- 专利标题: Method for illuminating liquid crystal display device, a back-light assembly for performing the same, and a liquid crystal display device using the same
- 专利标题(中): 用于照亮液晶显示装置的方法,用于执行该方法的背光组件以及使用其的液晶显示装置
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申请号: US09874316申请日: 2001-06-06
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公开(公告)号: US06788359B2公开(公告)日: 2004-09-07
- 发明人: Jeong-Hwan Lee , Ik-Soo Lee , Kyu-Seok Kim , Jong-Ho Won
- 申请人: Jeong-Hwan Lee , Ik-Soo Lee , Kyu-Seok Kim , Jong-Ho Won
- 优先权: KR2000-31056 20000607
- 主分类号: G02F11335
- IPC分类号: G02F11335
摘要:
A method for illuminating a liquid crystal display device, a back-light assembly for performing the same and a liquid crystal display device using the same can improve the front luminance and production yield. Lights from a lamp is incident to a LCD panel side, which are then primarily diffused for a uniformity of the luminous flux of the incident lights. The luminous flux of the primarily diffused lights is condensed with respect to a first orientation component on a plane in parallel with the LCD panel, and then partially and secondarily diffused for extending a view angle of pixels of the LCD panel. After the luminous flux of the secondarily diffused lights is condensed with respect to a second orientation component perpendicular to the first orientation on the parallel plane, the condensed lights are illuminated onto the LCD panel. A diffusion sheet for secondarily diffusing the luminous flux and a condensing sheet for condensing the second orientation component are formed by a single sheet to reduce the manufacturing process of the liquid crystal display device. Also, a defect produced from respective sheets is minimized to enhance the yield.