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Invention Application
US20050063173A1 Light emitting diode having diffraction grating and planar light source device using the same 有权
具有衍射光栅的发光二极管和使用其的平面光源装置

Light emitting diode having diffraction grating and planar light source device using the same
Abstract:
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.
Abstract(Chinese):

用于显示装置的平面光源装置（100）包括导光板（120）和多个发光二极管（110）。 导光板具有光入射面（121）。 发光二极管位于光入射面附近。 每个发光二极管具有与导光板的光入射表面相对的发光表面，并且具有设置在发光表面上的衍射光栅（117），用于改善从其发射的光束的发散范围。

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