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研究生:童世欽
研究生(外文):Shih-Chin Tung
論文名稱:RGB-LED背光模組混光調控與均齊度之研究
論文名稱(外文):Research of mixed-light control and uniformization for RGB-LED backlight module
指導教授:張永農張永農引用關係
學位類別:碩士
校院名稱:國立虎尾科技大學
系所名稱:電機工程研究所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2009
畢業學年度:97
語文別:中文
論文頁數:73
中文關鍵詞:發光二極體混光調控回授均齊度
外文關鍵詞:LED(light emitting diodes)mixed-light circuit modulefeed-backuniformity
相關次數:
  • 被引用被引用:1
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  • 下載下載:8
  • 收藏至我的研究室書目清單書目收藏:0
本文以紅、綠、藍三原色發光二極體進行混光調控,實現以RGB-LED為背光源之白光背光源輸出,完成一背光源混光調控系統,以提升背光源亮度與色彩的調控準度。本文應用功因修正器搭配順向式轉換器與回授之技術,製作一35瓦DC/DC背光源電源驅動器,防止因負載變動而造成電壓不穩定,而導致光色飄移,以達成白光光源輸出。RGB-LED易受溫度影響而影響其xy色度座標,導致光飄移情形發生,而無法穩定原色度座標值,本文以可程式系統晶片PSoC予以控制,利用混光調控理論設計製作一自動混光調控系統,以達成白光光色輸出。本文以模組化概念組合製作大尺寸背光模組,並應用背光源混光調控系統,解決RGB-LED應用於背光源之均齊程度。
In this thesis, light emitting diodes with red, green, and blue lights, respectively, are served as the back-light source and employed to generate the three primitive colors that could be adjusted and mixed to realize the output of white light. With the introduction of the techniques, by using the power factor correction and forward converter, a 35 watt DC/DC converter was developed to prevent the color deviation due to instable voltage of the variation load to stabilize the output of white light. The feature of light-emitting diodes is found to be susceptible to temperature which causes color deviation and the value of chromaticity coordinates can not be stable. To prevent the output white light from being experienced with color deviation due to temperature effect on the performance of LED, a mixed-light circuit module is developed by integrating PSoC. By utilizing the developed mixed-light backlight source control system, a module assembly concept is used to develop a large-sized backlight-source module. Eventually, the uniformity of large-size backlight-source can be optimized and the application of RGB LED on large-size LCD can be realized.
中文摘要......................................i
英文摘要......................................ii
致謝..........................................iii
目錄..........................................iv
圖目錄........................................vi
表目錄........................................x
第一章 簡介..................................1
1-1研究背景...................................1
1-2研究動機與目的.............................4
1-3研究內容...................................5
1-4研究貢獻...................................6
1-5論文大綱...................................6
第二章 RGB-LED背光源混光調控理論與應用.......7
2-1 色彩基礎理論..............................7
2-2 RGB-LED背光源混光理論.....................14
2-3 xy色度座標量測裝置...............19
第三章 RGB-LED背光模組電源驅動器架構.........25
3-1功率因數修正......................25
3-2 順向式轉換器驅動架構.............26
3-3電源驅動器電路....................28
第四章 RGB-LED背光模組混光調色驅動控制.......34
4-1 PWM調光驅動架構...........................34
4-2 RGB-LED背光模組自動混光調控系統...........39
第五章 RGB-LED背光源均齊度量測...............55
5-1背光源控制與管理模組化............55
5-2 RGB-LED光譜分布均勻性量測系統....58
第六章 結論與討論............................66
參考文獻......................................68
簡歷..........................................73
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