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US07806537B2 Light guide plate having orthogonal stresses or strains and backlight module therewith 有权
具有正交应力或应变的导光板及其背光模块

Light guide plate having orthogonal stresses or strains and backlight module therewith
Abstract:
A backlight module includes a light guide plate (52), a light source (51), a reflecting sheet (53), a diffusion sheet (54), and a reflective polarizing beam splitter (57). The light guide plate includes a light input surface (521), a light output surface (522) adjacent to the light input surface, a reflecting surface (523) opposite the light output surface, and a number of microstructures (524) located on the reflecting surface. In the light guide plate, stress-induced birefringence is introduced to achieve a polarization state conversion, thereby facilitating efficient use of the light generated by the light source.
Abstract(Chinese):

背光模块包括导光板（52），光源（51），反射片（53），扩散片（54）和反射偏振分束器（57）。 导光板包括光输入表面（521），与光输入表面相邻的光输出表面（522），与光输出表面相对的反射表面（523）和位于光输入表面上的多个微结构（524） 反射面。 在导光板中，引入应力引起的双折射以实现偏振状态转换，从而有效地利用由光源产生的光。

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