螢光粉簡易混色模型

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范姜智順(Chih-Shun Fan-chiang) 查詢紙本館藏

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光電科學與工程學系

論文名稱

螢光粉簡易混色模型
(Simple Modeling of Phosphors for Color Mixing)

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摘要(中)

在過去半個世紀以來，螢光粉在發光及顯示器的應用上，一直扮演著重要的角色。然而在螢光光源的製作過程中，為了要求不同色度值的表現，需要對三基色螢光粉的重量比例作不同的改變。但由於螢光材料本身及製作環境會對調製的比例造成影響，所以在每次重量比例的選擇多以調製者依經驗法則來達成，導致時間的浪費且人為調製的影響因素較難以控制。
基於螢光發光光源本身是由三基色螢光粉混色發光，所以本文提出一個由螢光發光源本身的發光光譜的色彩表現，利用色彩加法混色原理建構出混光比和三基色螢光粉重量混合比例的關係模型，用來解決以往利用傳統經驗法則調製配方的問題，且成功的應用於冷陰極管螢光粉的配方設計，並可控制色度值的誤差在0.003。
在實際運用的成本考量方面，通常是利用三基色螢光的螢光混合色粉為配方設計的基底，藉由增加三基色螢光粉來調制色度值。利用本文所提出的關係模型可用來計算三基色螢光粉的重量添加方式，因此更進一步得到最佳的螢光粉重量和色度值。

摘要(英)

Before Since half a century ago, phosphor technology has been playing an important role in the applications of the general lighting and the display engineering both. However, the combination recipes of the color phosphors to goal at the target chromaticity ate still built up by the experiments of trials and errors. It is of great time-consuming and very inefficient. Therefore, how to quickly obtain the accurate weight ratios of phosphors in the combination recipes becomes a critical issue of phosphor technology for many practical applications.
In this work, firstly the principle of the color mixing has been applied to the optical mixing ratios of phosphors in approaching to the target chromatic performance. Then, the relation between the optical mixing ratios and the weighting ratios is concluded to an experimental model from a great amount of the realistic datum. Finally, any requested chromatic performance of the phosphor recipe can be precisely predicted by these two steps above. As a result, the chromatic deviation from the quick model to the goal can be well controlled down to less than 0.003 (Δxy). It will also been tested in the practical CCFL production lines about the accurate phosphor mixing recipes.

關鍵字(中)

★ 色彩學
★ 色彩混色
★ 螢光粉
★ 光源混色

關鍵字(英)

★ phosphor
★ color mixing
★ chromaticity

論文目次

第一章緒論............................1
1.1 前言 ................................1
1.2 研究動機與目的......................4
1.3 論文結構............................6
第二章基礎理論........................7
2.1 色彩學概論..........................7
2.1.1 色彩的產生及可見光................7
2.1.2 CIE色度系統......................10
2.1.3 色彩混色理論.....................14
2.2 螢光材料簡介.......................15
2.2.1 螢光體能量的激發與吸收...........16
2.2.2 螢光能量的轉換機制...............17
2.2.3 螢光光譜的特性分析...............20
2.2.4 螢光材料的分類及應用.............21
2.3 螢光光源的發光光譜.................23
第三章研究方法.......................25
3.1 研究流程...........................25
3.2 螢光光源的製作問題.................26
3.3 螢光粉重量混合比例與色彩特性關係...28
第四章實例應用與討論.................38
4.1 色度座標與螢光粉重量關係模型.......38
4.1.1 冷陰極管的發光光譜...............38
4.1.2 冷陰極管模型的建立...............39
4.1.3 模型的誤差分析...................47
4.2 利用螢光混合色粉的三基色螢光粉添加.49
4.2.1 螢光添加色粉的增加問題.........49
4.2.2 螢光添加色粉的增加方式............49
第五章結論...........................52
參考文獻................................54

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指導教授

楊宗勳(Tsung-Hsun Yang)

審核日期

2007-7-24

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