透鏡陣列之擴散片

Abstract

擴散片是個光穿透的元件，凡是能重新分配光分布的膜片都可定義為擴散片。此篇論文中，我們提出兩種不同功能的透鏡陣列之擴散片。光束形變擴散片能依其表面的方形透鏡形狀來產生方形的光場，此特性可運用於掃描式背光的分區概念中。另一種功能為應用於一般的背光模組中，透鏡陣列擴散片能同時具有集光和擴散光的效果，可代替傳統的增益片和擴散片。

Diffusing film, which is an optically transmissive component, is provided to redistribute the propagating light. In this study, we proposed two functions of diffusing film with surface relief of lens array. Beam shaping film with spherical micro-lens array produces the square beam shaping pattern applied to the division areas in the scanning backlight module. A novel diffuser, lens array film, performs dual functions of light collection and diffusion and is proposed to combine and replace BEFs and diffusers in the backlight module.