高效率與高演色性之棋盤式雙螢光粉封裝研究

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姓名

呂俊諺(ChunYen Lu) 查詢紙本館藏

畢業系所

光電科學與工程學系

論文名稱

高效率與高演色性之棋盤式雙螢光粉封裝研究
(Study of High-Efficiency Packaging of Double-Phosphor Chessboard Structure with High Color Rendering Index)

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摘要(中)

本論文致力於提升LED之封裝效率與演色性，首先使用兩種不同粒徑之黃色螢光粉作效率上的探討，並應用孫慶成教授領導之固態照明實驗室中螢光粉光學模型，建立兩種不同粒徑之螢光粉模型，可得到大粒徑之螢光粉封裝效率表現比小粒徑之螢光粉好。並使用大粒徑之黃色螢光粉模型模擬出棋盤式LED封裝，藉此提生白光LED之封裝效率，並分析棋盤式LED封裝之分佈影響。然而考慮到演色性之問題，改良棋盤式LED噴塗之封裝方式，使用紅色螢光粉與綠色螢光粉加入探討，藉由模擬優化以及分析，製作出高效率與高演色性之LED。

摘要(英)

This thesis aims to improve the packaging efficiency and the CRI of LEDs. In the beginning, we studied the efficiency of two YAG phosphors in different radiuses. By applying professor Sun phosphor optical model to generate two models for both phosphors, it can be concluded that the packing efficiency of the wider radius phosphor was better than the narrow one. Additionally, the yellow phosphor optical model of the wider phosphor was used to simulate a chessboard structure LED package. In order to improve the packaging efficiency of the white light LED and to analyze the influence caused by the distribution of the chessboard structure LED package. Yet, with consideration of its CRI, by improving the packaging method of the chessboard structure LED, adding both red and green phosphors into the study, and applying with addition simulation optimization and analyzation, a high packaging efficiency and high CRI LED can be manufactured.

關鍵字(中)

★ 螢光粉
★ LED封裝
★ 高效率
★ 高演色性

關鍵字(英)

論文目次

摘要 I
Abstract II
致謝 III
目錄 V
圖目錄 IX
表目錄 XV
第一章緒論 1
1.1 前言 1
1.2 LED 發展 2
1.3 研究動機與目的 4
1.4 論文大綱 5
第二章基本原理 6
2.1 引言 6
2.2 LED發光原理 6
2.3 螢光粉發光原理 8
2.4 色彩學 11
2.4.1 RGB 色度系統 12
2.4.2 CIE XYZ 13
2.4.3 相關色溫 15
2.4.4 演色性 16
第三章螢光粉低濃度至高濃度光學模型 19
3.1 引言 19
3.2 散射模型 20
3.2.1 螢光粉參數 20
3.2.2 螢光粉片製作與散射強度量測 23
3.2.3 螢光粉等效折射率與等效粒徑 28
3.3 螢光粉之等效吸收係數與等效轉換效率 30
3.3.1 螢光片積分球實驗量測與光源設計 30
3.3.2 頻譜切割與能量計算 33
3.3.3 等效吸收係數 36
3.3.4 等效轉換效率 38
3.4 光學模型驗證 40
3.4.1 實驗製作 41
3.4.2 封裝效率 41
3.4.3 實驗與模擬對照 43
3.5 光學模型探討與結論 45
第四章棋盤式螢光粉封裝 49
4.1 棋盤式封裝之分析 50
4.1.1 碗杯之能量影響 50
4.1.2 棋盤式封裝設計 51
4.1.3 正向能量與背向能量 55
4.1.4 玻璃空隙與棋盤式封裝 57
4.1.5 棋盤式封裝之空間色偏 58
4.2 綠色螢光粉與紅色螢光粉之高濃度模型 59
4.2.1 螢光粉散射建立 59
4.2.2 吸收係數與轉換效率 65
4.2.3 封裝驗證 72
4.3 雙粉棋盤式封裝 75
4.3.1 螢光粉選擇與參數 75
4.3.2 光學模擬建立與棋盤式封裝實驗 76
4.3.3 矽膠透鏡的棋盤式封裝 79
4.4 棋盤式封裝之討論與結論 81
第五章結論 87
參考文獻 89
中英文對照表 95

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指導教授

孫慶成、楊宗勳

審核日期

2016-6-13

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