博碩士論文 952206044 詳細資訊




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姓名 林孟佳(Menh-Chia Lin)  查詢紙本館藏   畢業系所 光電科學與工程學系
論文名稱 以多晶片封裝LED為LCTV背光源之背光機構之研究
(The Design for Backlight Module of LCTV by Using Multi-Chip LEDs)
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摘要(中) 在本論文中,主要目的是利用多晶片封裝LED作為LCTV背光機構之光源,並且設計了一薄型化的混光腔體。過程中,利用BSDF分佈及蒙地卡羅光追跡法成功地建立混光腔體中所使用的擴散板之散射模型。最後,我們製作了一台採用熱插拔式多晶片LED為背光源之42吋LCTV,並對其作一系列實驗分析及問題討論。
摘要(英) In the thesis, we use multi-color LEDs to replace CCFLs of an LCTV and design a thin backlight unit. In the design process, we incorporate the BSDF model with Monte Carol ray tracing to establish the scattering model of the diffuser in the backlight module, and successfully simulate the transmitted and reflected lights by the diffuser. Finally, we fabricate the backlight unit for a 42-inch LCTV by using multi-color LEDs with hot-plug package. The optical performance of the LCTV with the LED backlight unit is analyzed.
關鍵字(中) ★ 背光機構 關鍵字(英) ★ backlight unit
論文目次 摘要 Ⅰ
英文摘要 Ⅱ
誌謝 Ⅲ
目錄 Ⅳ
圖索引 Ⅶ
表索引 XI
第一章 緒論 1
1.1 高功率LED 介紹 1
1.2 LED 背光模組介紹 5
1.3 大綱 9
第二章 基本原理 10
2.1 光度學(photometry) 10
2.1.1 簡介 10
2.1.2 基本原理 12
2.2 色度學(colorimetry) 16
2.2.1 色覺 16
2.2.2 色彩空間說明 19
2.3 均勻性 24
第三章 散射片散射模型建立 26
3.1 散射片之模擬 26
3.2 BSDF之定義 27
3.3 實驗與模擬分析 28
3.3.1 穿透光散射光強度分布量測 28
3.3.2 擴散片散射模型驗證 31
3.3.3 反射光強度分布量測 34
3.4 BSDF散射模型建立 38
第四章 RGB LED LCTV的之設計與量測 40
4.1 簡介 40
4.1.1 液晶面板簡介 40
4.1.2 增亮膜簡介 42
4.1.3 42吋LCD電視規格 43
4.2 RGB LED量測 45
4.3 LED封裝透鏡設計 51
4.3.1 設計動機 51
4.3.2 LED特性量測 54
4.4 均勻性之實驗 55
4.5 RGB LED背光模組之輝度管理 61
4.6 背光模組之製作及量測 63
4.6.1 背光模組之製作 63
4.6.2 背光模組之量測 65
第五章 結論 70
參考文獻 71
中英文名詞對照表 75
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指導教授 楊宗勳(Tsung-Hsun Yang) 審核日期 2008-7-18
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