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博碩士論文 etd-0909109-180737 詳細資訊
Title page for etd-0909109-180737
論文名稱
Title
錐狀透鏡最佳化分析
Optimal Analysis of pyramid-shaped microlens array
系所名稱
Department
畢業學年期
Year, semester
語文別
Language
學位類別
Degree
頁數
Number of pages
55
研究生
Author
指導教授
Advisor
召集委員
Convenor
口試委員
Advisory Committee
口試日期
Date of Exam
2009-07-29
繳交日期
Date of Submission
2009-09-09
關鍵字
Keywords
光學膜片、微透鏡陣列、背光模組、稜鏡片、錐狀透鏡、增亮膜
microlens array, backlight module, pyramid-shaped microlens, BEF (Brightness enhancement film), optical film
統計
Statistics
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中文摘要
本論文主要針對背光模組中零組件之一:增亮膜,經由研讀文獻及外型結構研究
後以錐狀透鏡最佳化分析為主題,希望能在以美商3M 之產品為寡佔市場裡,提出
另一種結構的研究。目前業界以3M 公司的增亮膜結構使用最為普遍,但是這種方
式會增加背光模組的厚度及材料成本,為了改善這樣的缺點,本文以三角錐狀稜
鏡結構的增亮膜,使用FRED 光學模擬軟體進行模擬並尋求最佳化之參數,首先
先建立一直下式光源,先調整其光均勻度。再者以3M“BEF II 90/50 Film”所公
佈之數據,取得模擬數據與廠方公布數據比對後,兩方數據相差無幾,這一步驟
是為了確定各介面的參數設定正確。經過一連串的模擬過程,尋求數據的收斂後
以頂角85 ゚角較優,此論文研究發現頂角85 ゚角之三角錐狀透鏡擁有較佳之軸發
光強度。
Abstract
In this paper, we searched the parameter of BEF (Brightness enhancement film) using
commercial FRED server for backlight module. The pattern analysis was carried out to
understand its characteristic. The current structures used in LCD backlight are
double-layer BEF. In addition, BEF of 3M takes the lion’s share. But this may increase
the thickness and cost of backlight module. In order to avoid those disadvantages, we
tried to design single-layer BEF and characterize the effect through parameters study by
using FRED software simulation. pyramid-shaped microlens array of BEF was
constructed. Therefore, the effect of the variation of the structure parameters can be
analyzed, such as prismatic degree (θ), prismatic structure on the brightness
enhancement. It can be found from the result of simulation that the changes of the
prismatic degree (θ) of 85 degree influence the brightness enhancement the most.
目次 Table of Contents
論文審定書............................................................... i
摘要................................................................... iii
Abstract ................................................................ iv
目錄..................................................................... v
圖次................................................................... vii
表次.................................................................... ix
第一章 緒論.............................................................. 1
1-1 背光模組之簡介................................................... 3
1-1-1 背光模組種類............................................. 3
1-1-2 背光模組之主要零組件及成本組合........................... 4
1-2 研究動機......................................................... 4
1-3 研究目的與方法................................................... 5
1-4 論文架構......................................................... 7
第二章 背光模組構成概述.................................................. 8
2-1 背光模組結構................................................... 8
2-2 發光源......................................................... 8
2-3 導光板......................................................... 9
2-4 反射板........................................................ 10
2-5 擴散板........................................................ 10
2-6 稜鏡片(增亮膜) .............................................. 12
第三章 相關基本光學理論介紹............................................. 16
3-1 折射率.......................................................... 16
3-2 反射定律與折射定律.............................................. 16
3-3 臨界角與全反射.................................................. 18
3-4 色散............................................................ 19
3-5 光學單位........................................................ 19
第四章 稜鏡片之錐狀透鏡結構參數分析..................................... 21
4-1 FRED 模擬流程架構............................................... 21
4-2 建立背光系統模組................................................ 21
4-3 建立3M “BEF II 90/50 Film”及驗證............................. 23
4-4 建立三角錐體透鏡模擬與分析...................................... 25
4-5 結果與分析...................................................... 39
第五章 結論............................................................. 43
參考文獻: ............................................................... 44
參考文獻 References
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