基本信息:
- 专利标题: 顯示器之背光系統 BACKLIGHTING SYSTEM FOR DISPLAYS
- 专利标题(英):Backlighting system for displays
- 专利标题(中):显示器之背光系统 BACKLIGHTING SYSTEM FOR DISPLAYS
- 申请号:TW092102915 申请日:2003-02-12
- 公开(公告)号:TWI263755B 公开(公告)日:2006-10-11
- 发明人: 王杉霜 WANG, SAN ZHUANG , 嘉恩瑞‧薩維特 SAVANT, GAJENDRA D. , 傑佛瑞‧連 LAINE, JEFFREY A. , 馬克‧班納米亞斯 BENNAHMIAS, MARK , 瑞克‧薛 SHIE, RICK L.
- 申请人: 物理光學公司 PHYSICAL OPTICS CORPORATION
- 申请人地址: 美國
- 专利权人: 物理光學公司 PHYSICAL OPTICS CORPORATION
- 当前专利权人: 物理光學公司 PHYSICAL OPTICS CORPORATION
- 当前专利权人地址: 美國
- 代理人: 林志剛
- 优先权: 美國 10/206,459 20020727
- 主分类号: F21V
- IPC分类号: F21V
An LED-based backlighting system that provides excellent brightness and homogeneity suitable for high performance multi-color and high resolution portable displays such as for PDAs and cell phones. Several different but similar embodiments are disclosed. Some are suitable for use with multiple LEDs and some for use with a single LED. In a first such embodiment, multiple LEDs are located adjacent the input edge of a light pipe. The input edge contains fixed pitch grooves to propagate the LED light in a direction that is substantially angled toward the bottom surface of the light pipe along its entire area. The light pipe bottom surface also has grooves for altering the direction of the LED light toward the upper surface of the light pipe where it exits the light pipe toward a viewer. The exterior of the exit surface of the tight pipe receives a light shaping diffuser (LSD) and an optical film. The diffuser acts to diffuse and distribute the exiting light at selected horizontal and vertical angles and the optical film shapes In a second embodiment, a second LSD is positioned above the optical film. In a third embodiment, an LSD strip comprising a foreshortened LSD is positioned below the light pipe adjacent the input edge to better reduce hot spots near the LEDs.
公开/授权文献:
- TW200401870A 顯示器之背光系統 BACKLIGHTING SYSTEM FOR DISPLAYS 公开/授权日:2004-02-01
信息查询:
EspacenetIPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F21 | 照明 |
----F21V | 照明装置或其系统的功能特征或零部件;不包含在其他类目中的照明装置和其他物品的结构组合物 |