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发明授权
CN108802888B 背光模块及其应用的立体显示装置 有权

背光模块及其应用的立体显示装置
摘要：
本公开提供一种背光模块及其应用的立体显示装置。背光模块包含光源组件以及导光板。导光板包含至少一微结构，设置于底面，其中导光板的微结构具有平面反射面。光源组件包含多个光源组、第一柱状透镜阵列以及第二柱状透镜。每一光源组包含沿X方向排列的第一光源以及第二光源。第一柱状透镜阵列光学耦合于光源组与导光板之间，第一柱状透镜阵列包含多个第一柱状透镜，第一柱状透镜于X方向上具有光学能力，其中每一光源组对应每一第一柱状透镜设置。第二柱状透镜光学耦合于光源组与导光板之间，其中第二柱状透镜于Z方向上具有光学能力，其中Z方向垂直于X方向。本公开提供的背光模块可以降低立体显示装置的厚度并节省LED光源的数量。
摘要（英）：

A backlight module includes a light source component and a light guide plate. The light guide plate includes at least one micro-structure on a bottom surface of the light guide plate, and the micro-structure includes a plane reflective surface. The light source component includes light source groups, a first cylindrical lens array and a second cylindrical lens. Each of the light source groups includes a first light source and a second light source arranged along an X direction. The first cylindrical lens array is optically coupled between the light source groups and the light guide plate, and includes first cylindrical lenses having lens power along the X direction and disposed corresponding to each of the light source groups. The second cylindrical lens is optically coupled between the light source groups and the light guide plate, and has lens power along a Z direction orthogonal to the X direction.

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