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发明公开
CN101939675A 具有结构化膜的中空背光源 无效 - 驳回 复审申请

具有结构化膜的中空背光源
摘要：
本发明公开了一种背光源(120)，其包括前反射器(130)和后反射器(160)，所述前反射器和后反射器形成具有输出表面(164)的中空的光再循环腔(162)。所述前反射器包括至少四个定向再循环膜(132)。所述背光源还包括半镜面漫射片以及一个或多个光源(166)，所述半镜面漫射片设置在前反射器与后反射器之间，所述光源设置成向光再循环腔内发射光。
摘要（英）：

A backlight (120) that includes a front reflector (130) and a back reflector (160) that form a hollow light recycling cavity (162) having an output surface (164) is disclosed. The front reflector includes at least four directional recycling films (132). The backlight also includes a semi-specular diffuser disposed between the front reflector and the back reflector, and one or more light sources (166) disposed to emit light into the light recycling cavity.

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