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標題: 曲率可調微透鏡陣列技術應用於視角可變LCD光 學設計與模擬
Design and Simulation for Variable Viewangle LCD with Adjustable Curvature Microlens Array
作者: 康家梁
Kang, Chia-Liang
關鍵字: adjustable curvature;曲率可調;microlens array;viewangle;energy-saving;微透鏡陣列視角;節能
出版社: 精密工程學系所
引用: [1] 莊東漢等, "平面顯示器概論," 高立圖書有限公司, 2006. [2] 瑞儀光電股份有限公司, . [3] 鮑友南、潘奕凱、姚柏宏、林建憲, "LCD 背光模組之現況與未來," 機械工業雜誌, vol.第257 期, pp.139-154, 2004. [4] DisplaySearch, . [5] 美國3M 公司, . [6] 童璽文, "熱致動式固態可調焦為透鏡," 國立清華大學動力機械工程學系碩士論文, 07 2002. [7] Z. D. Popovic, R. A. Sprague and G. A. N. Connell, "Technique for monolithic fabrication of microlens arrays," Appl. Opt., 27, pp.1281-1284, 1988. [8] J. Shimada, O. Ohguchi, and R. Saeada, "Microlens fabricated by the planar process," J. Lightwave Technology, 9, pp. 571-576, 1991. [9] N. F. Borrelli, D. L. Morse, R. H. Bellmann, and W. L. Morgan,"Photolytic technique for producing microlenses in photosensitive glass, " Appl. Opt., 24, pp. 2520-2525, 1985. [10] S. K. Lee, K. C. Lee, and S. S. Lee, "Microlens fabrication by the modified LIGA process," IEEE MEMS''02, pp. 544-547, 2002. [11] A. W. Lohmann and S. Sinzinger, "arrays of doublet lenses," Optik, 93, pp. 84-86, 1992. [12] S. Sinzinger, and J. Jahns, "Microoptics," 1st edition, WILEY-VCH, 1999. [13] L. G. Commander, S. E. Day, and D. R. Selvian, "Variable focal length microlenses," Optics communications, 177, pp. 157-170, 2001. [14] T. Krupenkin, S. Yang, and P. Mach, "Tunable liquid microlens," Appl. Phys. Lett., 82, pp. 316-318, 2003. [15] D. Y. Zhang, V. Lien, Y. Berdichevsky, J. Choi, and Y. H. Lo, "Fluidic 83 adaptive lens with high focal length tenability, " Appl. Phys. Lett., 82, pp. 3171-3172, 2003. [16] 邵穗鵬,“光學透鏡系統實例設計與評估,"國立中央大學機械工程研究所碩士論文, 07 2004. [17] 方育斌,“LCD 背光模組之光學最佳化設計,"國立成功大學工程科學研究所碩士論文, 07 2004. [18] J. Chen, W. Wang, J. Fang and K. Varahramyan,“Variable-focusing microlens with microfluidic chip,” J. Micromech. Microeng., 14, pp. 675-680, 2004. [19] Fan Ouyang, Jiangang Wu, Ming Kang, Ruifeng Yue and Litian Liu, “Planar Variable-Focus Liquid Lens Based on Electrowetting on Dielectric,” Proceedings of the 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, 2007. [20] David K. Cheng, “Field and Wave Engineering Electromagnetics,”Addison Wesley, 2nd edition, pp. 321-326. [21] Warren J. Smith, “Modern Optical Engineering,” McGraw-Hill, 3rd edition, pp. 125-138. [22] 荊其誠,“色度學,"北京科學出版社. [23] W. R. McCluney, “Introduction to Radiometry and Photometry,” Addison Artech House, 1st edition. [24] SPEOS 2005 User’s guide. [25] 睿晟光學股份有限公司, . [26] 展大國際股份有限公司, . [27] 思渤科技股份有限公司, . [28] 愛發科技股份有限公司, . [29] 日亞化學工業株式社會, .
傳統LCD TV 通常是為多數人收看所設計,故背光源視角較廣;但在少數人收看時,不需較廣的背光源視角,即可滿足觀看需求,此時其它視角的光線能量無形中就浪費了。基於此一動機,希望設計一曲率可調微透鏡陣列技術,來達到視角可隨需要調整之目的,並具有節省能源之效果。
本論文研究以SPEOS 光學模擬軟體來建構視角可變的LCD 模組,研究成果有:1.在直下式背光模組中加入透鏡組合,把LED 光源轉成平行光源,再經過擴散片來達到所需角度,與傳統直下式背光模組先藉由擴散片擴散再經稜鏡片收集光線視角做法不同,目的在為節省稜鏡片成本並具有創新性;2.在LCD 顯示器的每一個次畫素R、G、B 前面,模擬加入曲率可調微透鏡陣列技術,藉由曲率半徑改變,進而改變出光之視角,並可隨觀賞者之人數而加以調整,達到節能效果。

Traditional LCD TV with wider viewangle backlight is designed for multi-observers. But for few observers, providing such a wide viewangle results in energy-wasting. Considering this, we build an adjustable curvature microlens array to adjust the viewangle for different number of watchers to achieve energy saving target.
This research uses optical simulation soft-ware to build variable-viewangle LCD module. Two steps are taken to achieve our target. (1) First, we combine different sets of lens with bottom-lit BLM(Back Light Module) and transform the LED light into parallel light, then using diffusion sheet to expand the viewangle. (2) Second, we add adjustable curvature microlens array in front of every sub pixel (R, G, B) in LCD. Through the change of radius of the microlens, we can vary the viewangle and adjust it according to number of observers and achieve the goal of energy-saving.
其他識別: U0005-2707200917023200
Appears in Collections:精密工程研究所

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