目前,市场上流行的手机背光源的导光板基本上为单面网点(球型微透镜阵列) 的结构.文章介绍了一种新型手机用导光板的设计,其采用一面为网点结构,另一面为轮廓渐变的V-槽形结构的自由曲面,以使导光板的配光更加合理.模拟结果显示,导光板照度比单面网点的导光板要高出1倍左右.采用这样的结构,背光模组中至少可以少用一层3M公司的增亮膜(棱镜膜),使背光模组的成本有效降低.
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