发明名称 |
Light emitting diode having diffraction grating and planar light source device using the same |
摘要 |
A planar light source device (100) for a display device includes a light guide plate (120) and pluralities of light emitting diodes (110). The light guide plate has a light incident surface (121). The light emitting diodes are located in the vicinity of the light incident surface. Each light emitting diode has a light emission surface opposite to the light incident surface of the light guide plate, and has a diffraction grating (117) provided on the light emission surface for improving a range of divergence of light beams emitted therefrom.
|
申请公布号 |
US2005063173(A1) |
申请公布日期 |
2005.03.24 |
申请号 |
US20040946447 |
申请日期 |
2004.09.20 |
申请人 |
LEU CHARLES;HUANG WEN-JENG;LIN JYH-CHAIN |
发明人 |
LEU CHARLES;HUANG WEN-JENG;LIN JYH-CHAIN |
分类号 |
F21V8/00;H01L33/54;(IPC1-7):F21V7/04 |
主分类号 |
F21V8/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|