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研究生：	黃商殷 Huang, Shang-Yin
論文名稱：	利用Fresnel光補償膜和基因演算法設計並最佳化一新型高均齊度直下式背光模組 Design and optimization of a novel Fresnel-compensator-assisted direct-type backlight module using the genetic algorithms
指導教授：	蔡宗祐 Tsai, Tzong-Yow
學位類別：	碩士 Master
系所名稱：	電機資訊學院 - 微電子工程研究所 Institute of Microelectronics
論文出版年：	2008
畢業學年度：	96
語文別：	中文
論文頁數：	71
中文關鍵詞：	基因演算法、背光模組
外文關鍵詞：	genetic algorithms, backlight module
相關次數：	點閱：115 下載：2
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本論文提出了利用Fresnel光補償膜設計之新型直下式背光模組。光補償膜類似直線型Fresnel透鏡，但其具有用來控制向後及反射的光以使得接收面照度更為均勻的特殊脊狀角度設計。並在MATLAB中以基因演算法操縱Fresnel光補償膜上的楔型參數來最佳化背光模組的設計與照度均齊度。在MATLAB程式中，CCFL假設為截面積為0的完美線光源。接著考慮燈管直徑並以光學模擬軟體TracePro模擬驗證MATLAB最佳化設計結果。當模組厚度20mm、燈管間距40mm且以Fresnel光補償膜最佳化均齊度後的結果，在MATLAB中均齊度可達95%，而在TracePro中可達92%。

The thesis proposed a novel Fresnel-compensator-assisted direct-type backlight module. The Fresnel compensator was similar to a linear Fresnel lens, but with the particular ridged angles designed to modulate the backward and reflected light for compensating and uniformizing the illuminace on the output plane. The design and the illuminance uniformity of the backlight module was optimized using the genetic algorithm in MATLAB programming by manipulating the wedge parameters of the fresnel compensator. The CCFLs were assumed to be perfect linear light sources that have zero cross-section areas in MATLAB programming. The optimum design and performance by Matlab Programming were further demonstrated using an optics simulation sofeware TracePro where the CCFL's thickness was taken into account. With the module thickness of 20mm and 40-mm spacing between CCFLs, the parameters of Fresnel compensator was optimized and the corresponding uniformity of 95% was achieved in Matlab and that of 92% was achieved in TracePro.

摘要............................................................................................................................I
Abstract..................................................................................................................II
致謝.........................................................................................................................IV
圖目錄...................................................................................................................VII
表目錄......................................................................................................................X
第一章 緒論.............................................................................................................1
1-1 引言...................................................................................................................1
1-2 背光模組簡介...................................................................................................5
1-3 文獻回顧...........................................................................................................8
1-4 研究動機與目的.............................................................................................. 9
1-5 論文架構.........................................................................................................11
第二章 基礎理論...................................................................................................12
2-1光度量學 -照度(Illuminance, E)...................................................................12
2-2 光補償膜的原理與設計.................................................................................14
2-2均齊度之定義..................................................................................................20
2-3 基因演算法(Genetic Algorithms, 又稱遺傳演算法).............................21
2-3.1 基因法則.....................................................................................................21
2-3.2 基因演算法之基礎理論.............................................................................28
2-3.3 基因演算法特性.........................................................................................32
第三章 直下式背光模組優化設計.......................................................................34
3-1 模組均齊度的影響因子.................................................................................35
3-1.1 燈管間距與燈管至反射板的距離對均齊度的影響.................................35
3-1.2 模組厚度與燈管至反射板的距離對均齊度的影響.................................36
3-1.3 燈管數目與模組厚度對均齊度的影響.....................................................36
3-2 以基因演算法最佳化背光模組均齊度.........................................................39
第四章 模擬驗證與分析.......................................................................................44
4-1 MATLAB與TracePro模擬結果分析..............................................................44
4-1.1 T=20mm, S=40mm, L=5mm.......................................................................44
4-1.2 T=30mm, S=60mm, L=5mm.......................................................................47
4-2 考慮燈管直徑，最佳化設計背光模組..........................................................50
4-2.1 T=20mm, S=40mm, L=5mm.......................................................................50
4-1.2 T=30mm, S=60mm, L=5mm.......................................................................52
4-3 組裝誤差對均齊度的影響.............................................................................56
4-3.1 T=20mm, S=40mm, L=5mm.......................................................................56
4-3.2 T=30mm, S=60mm, L=5mm.......................................................................58
第五章 結論與未來展望.......................................................................................60
5-1 結論.................................................................................................................60
5-2 未來展望.........................................................................................................61
參考文獻.................................................................................................................63
附錄 一...................................................................................................................66
背光模組模擬程式(MATLAB)............................................................................66
附錄 二...................................................................................................................70
以基因演算法最佳化設計之補償膜角度參數.....................................................70
                                    

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校內：2011-07-31公開
校外：2013-07-31公開

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