導光板光點之微結構製程與模擬研究

Research of Microstructure Fabrication and Simulation for Light-Guide Plates

李謀典(Mou-Tien Lee)

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2007年)

摘要

本論文以研究開發導光板光點微結構製程技術，並進行光學模擬應用於2.5吋導光板上，以提升背光模組之光利用效率。研究初期先使用光學軟體Trace Pro進行模擬探討，發現四角錐微結構比一般產業界普遍使用的微透鏡結構，有較佳的光利用效率，因此，實驗過程將極力開發四角錐微結構之製程，透過已研發之特殊曝光技術，首先將模擬設計出之光學點陣圖案製作於於光罩中，經厚膜光阻塗佈於基板上，再經特殊曝光技術過程，產生所需之四角錐微結構陣列，經金屬導電層處理，再以電鑄成模具製程與後段組裝加工，得以用於複製透明之光學級導光板，提供於射出成型機之模具與模仁輸出，以達到量產方式與降低成本。

並列摘要

This thesis aims to develop an optical microstructure processing technology in light-guide plates and use optical simulation for 2.5-in light-guide plates. It can enhance optical usage efficiency in backlighting modules. A commercial optical simulation software TracePro was used in simulation works. As found pyramid microstructures have a better optical efficiency than conventional microlenses in industry. Thus, experiments were devoted to develop pyramid microstructure processing technology. By using the previous invented special exposure technology, the designed patterns can be transferred and formed pyramid microstructure and its array onto the substrate. Following a metal film treatment for electroforming, mold insert can be completed for injection molding. Transparent light-guide plates can be produced and achieved in mass production and low cost.

參考文獻

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