文目錄 頁數 摘要.............................................................................................................I Abstract......................................................................................................II 誌謝..........................................................................................................III 文目錄......................................................................................................Ⅳ 圖目錄......................................................................................................Ⅵ 表目錄......................................................................................................Ⅸ 第一章 緒論..............................................................................................1 1.1 前言.............................................................................................1 1.2 背光模組與元件.........................................................................3 1.3 論文結構.....................................................................................9 第二章 基礎光學原理及應用................................................................10 2.1 光學原理...................................................................................10 2.1.1 折射原理..........................................................................10 2.1.2 反射原理..........................................................................14 2.2 照明單位介紹...........................................................................16 2.3 光學軟體介紹..........................................................................21 第三章 光學膜片原理與應用................................................................26 3.1 增亮膜.......................................................................................26 3.1.1 增亮膜功能與原理..........................................................27 3.1.2 增亮膜的種類..................................................................27 3.2 擴散膜.......................................................................................34 3.2.1 擴散膜功能與原理..........................................................34 3.2.2 擴散膜的種類..................................................................34 3.3 反射膜.......................................................................................39 第四章 增亮膜模擬研究與新型結構設計............................................41 4.1 系統模組建立...........................................................................41 4.2 增亮膜頂角變異模擬...............................................................43 4.3 增亮膜折射率變異模擬研究...................................................44 4.4 增亮膜角錐結構頂角變異模擬...............................................47 4.5 光源與稜鏡基底距離研究.......................................................48 4.6 反射板與光源距離研究...........................................................50 4.7 新型增亮膜結構設計...............................................................52 第五章 結論............................................................................................56 5.1 研究總結...................................................................................56 5.2 光學膜片未來發展...................................................................58 參考文獻..................................................................................................59 圖目錄 圖1.1 LCD材料元件成本結構分析........................................................2 圖1.2 背光模組材料成本......................................................................2 圖1.3 液晶顯示器結構圖......................................................................4 圖1.4 側光式背光模組結構..................................................................5 圖1.5 直下型背光模組結構..................................................................5 圖1.6 中空型背光模組結構..................................................................5 圖2.1 吸管在水中的位置....................................................................12圖2.2 魚在水中的位置........................................................................12 圖2.3 斯涅爾定律示意圖....................................................................12 圖2.4 光進入密介質............................................................................13 圖2.5 光進入疏介質............................................................................13 圖2.6 光垂直入射................................................................................13 圖2.7 單一反射現象............................................................................15 圖2.8 漫射現象....................................................................................15 圖2.9 全反射........................................................................................15 圖2.10 立體角定義................................................................................19 圖2.11 發光強度定義............................................................................20 圖2.12 照度定義....................................................................................20 圖2.13 輝度定義....................................................................................20 圖3.1 側光型背光模組光學膜片作用示意圖....................................29 圖3.2 直下型背光模組光學膜片作用示意圖....................................29 圖3.3 各膜層在亮態下消耗光源的比率............................................30 圖3.4 BEF 結構之光線運作過程示意圖............................................30 圖3.5 RBEF 結構之光線運作過程示意圖..........................................31 圖3.6 WBEF 結構之光線運作過程示意圖..........................................31 圖3.7 DBEF 光線運作過程與搭配背光模組示意圖..........................32 圖3.8 DRPF 光線運作過程與搭配背光模組示意圖..........................32 圖3.9 蜿蜒式的稜鏡結構....................................................................33 圖3.10 金字塔型微結構......................................................................33 圖3.11 串珠型結構..............................................................................36 圖3.12 壓花型結構..............................................................................36 圖3.13 新型的擴散片結構..................................................................37 圖3.14 橢圓形粒子聚集光源..............................................................37 圖3.15 擴散膜均化效果......................................................................38 圖3.16 擴散板均化效果......................................................................38 圖3.17 白反射片..................................................................................40 圖3.18 銀反射片..................................................................................40 圖4.1 模擬系統結構..............................................................................42 圖4.2 數據擷取分析面..........................................................................42 圖4.3 不同頂角稜鏡模擬結果..............................................................43 圖4.4 折射率1.4~2.2模擬結果............................................................45 圖4.5 不同折射率視角比較..................................................................45 圖4.6 折射率1.6~1.8模擬結果............................................................46 圖4.7 折射率1.6~1.7模擬結果............................................................46 圖4.8 稜鏡角錐結構..............................................................................47 圖4.9 角錐頂角結構模擬結果..............................................................47 圖4.10 不同光源距離模擬分析............................................................49 圖4.11 反射板與光源距離模擬分析....................................................51 圖4.12 底部逆角錐結構........................................................................53 圖4.13 新型逆角錐結構........................................................................53 圖4.14 未加反射板模擬結果分析........................................................54 圖4.15 加反射板模擬結果....................................................................55 圖4.16 逆角錐模擬結果比較................................................................55 表目錄 表1.1 背光模組結構之比較...................................................................4表1.2 CCFL 與LED 光源的綜合比較....................................................5表2.1 FRED功能分析............................................................................21表4.1 不同光源距離模擬結果.............................................................49表4.2 反射板與光源距離模擬結果.....................................................51