發光二極體螢光粉塗佈方式分析與研究

以作者查詢圖書館館藏

、以作者查詢臺灣博碩士

、以作者查詢全國書目

、勘誤回報

、線上人數：74

、訪客IP：18.223.241.111

姓名

陳春芳(Chun-Fang Chen) 查詢紙本館藏

畢業系所

光電科學研究所碩士在職專班

論文名稱

發光二極體螢光粉塗佈方式分析與研究
(The study of LED phosphor coating)

相關論文

★ 腦電波傅利葉特徵頻譜之研究	★ 光電星雲生物晶片之製作
★ 電場控制器光學應用	★ 手機照相鏡頭設計
★ 氣功靜坐法對於人體生理現象影響之研究	★ 針刺及止痛在大鼠模型的痛覺量測系統
★ 新光學三角量測系統與應用	★ 離軸式光學變焦設計
★ 腦電波量測與應用	★ Fresnel lens應用之量測
★ 線型光學式三角量測系統與應用	★ 非接觸式電場感應系統
★ 應用田口法開發LED燈具設計	★ 巴金森氏症雷射線三角量測系統
★ 以Sol-Gel法製備高濃度TiO2用於染料敏化太陽能電池光電極之特性研究	★ 生產線上之影像量測系統

檔案

[Endnote RIS 格式]

[Bibtex 格式]

[相關文章]

[文章引用]

[完整記錄]

[館藏目錄]

[檢視]

[下載]

本電子論文使用權限為同意立即開放。
已達開放權限電子全文僅授權使用者為學術研究之目的，進行個人非營利性質之檢索、閱讀、列印。
請遵守中華民國著作權法之相關規定，切勿任意重製、散佈、改作、轉貼、播送，以免觸法。

摘要(中)

LED用於照明上有諸多優點，如體積小、發光效率佳、壽命長、無Hg汙染等因素，而且節能、環保、安全性，均優於傳統燈泡與日光燈管，使得LED照明燈具的開發及照明設計應用…等，均為極具潛力的研發議題。但由於LED發光面集中，且光源具指向性，使LED容易產生光圈、黃圈及不均勻等現象產生，以至於造成以下問題：
(1)若光線分佈設計不良，會造成光線不平均，在無形中會造成眼睛的傷害。
(2)聚光在一定的範圍，會造成一個明顯光圈，光圈邊緣會有黃圈現象，產生明與暗對比強烈，容易造成眼睛適應不良，且易疲勞。
(3)LED為點光源，如果光學技術沒有處理好，光照下時會產生多個影子分散重疊，干擾眼睛視覺能力。
因此本論文針對上述問題作分析研究與改善。
目前採用螢光粉封裝型式之LED，除了隨著不同封裝型式，且有不同光學特性外，不同種類的螢光粉，亦有不同的轉換效率，對LED的發光效率有直接影響，所以，對於螢光粉塗佈與其轉換效率之研究是一個相當重要的課題。
本論文針對LED中段點膠螢光粉塗佈封裝製程探討，並與一般封裝方式做比較，來證實光源均勻分佈對LED照明之重要性。
首先介紹LED所使用點膠封裝方式，再對其方式進行分類及優劣分析。而後，藉由各專利蒐集分析、觸發並運用創意構思設計之可行性，進行優劣評比後求得其基礎架構之設計解。所構思出之架構，並從材料選擇、張力分析等進行探討。最後以LED進行實體封裝，觀測實際封裝效果。

摘要(英)

There are advantages in the solid state lighting, for instance, smaller package size, higher power efficiency, longer reliability, and ROHS…etc. The energy –saving, environment effect are quite better than traditional fluorescent light tube. Hence, the potential issues are crucial to LED lighting modules and its concept designs. Owing to the spotlit of LED lighting surface sources, and its directional personalities, it lead to luminescence and yellow ring when watching to the performance. Following problems will be:
(1)Not uniform of light beams occurred when bad design added in, damage to
human eyes.
(2)In the range of spotlit, we can see an apparent light ring, especially a clear yellow ring happened in the edge. The controversy or light and dark would let our eyes exhausted.
(3)LED is a sort of point sources; we could see the multiple shadows or overlapped phenomenon when we treat it not well, furthermore, it interfere our visions.
Hereby, the thesis is to solve yellow ring issues.
For the time being, the phosphor LED package is popular. It’s an important topic to discuss its phosphor coating types and power to light efficiency, several parameters included, package designs, types of phosphor…etc., each parameter has its performance.
This thesis focus on the process of LED package compared with commercial package, and to prove the importance of uniform LED light sources.
At First, we introduce different types of LED package, evaluate the advantages and disadvantages.Then check out the possibilities by surveying patents, to choose the best performance by material, tensile strain…etc., approved by literature and simulation results. At last, finished the LED package and measured the light and electrical parameters.

關鍵字(中)

★ 發光二極體
★ 螢光粉塗佈

關鍵字(英)

★ phospher coating
★ led

論文目次

中文摘要 …………………………………………………………… Ⅰ
英文摘要 …………………………………………………………… Ⅱ
誌謝 …………………………………………………………… Ⅲ
目錄 …………………………………………………………… Ⅳ
圖目錄 …………………………………………………………… Ⅵ
表目錄 ……………………………………………………………ⅩⅡ
第一章緒論……………………………………………………… 1
1-1 研究背景………………………………………………… 1
1-2 LED較傳統光源的照明優勢…………………………… 5
1-3 研究動機與目的………………………………………… 6
1-4 論文架構………………………………………………… 8
第二章基本原理………………………………………………… 9
2-1 引言……………………………………………………… 9
2-2 LED發光原理…………………………………………… 9
2-3 螢光粉發光原理………………………………………… 11
2-4 LED轉換過程與效率…………………………………… 20
2-5 模擬螢光粉與白光LED………………………………… 23
2-5-1理論分析………………………………………………… 23
2-5-2實驗驗證………………………………………………… 30
2-5-3軟體模擬………………………………………………… 36
2-5-4螢光粉濃度與體積厚度分析…………………………… 45
第三章螢光粉塗佈方式………………………………………… 54
3-1 引言……………………………………………………… 54
3-2 螢光粉塗佈方式介紹…………………………………… 54
3-2-1 點膠方式………………………………………………… 54
3-2-2 鑄模方式………………………………………………… 55
3-2-3 裝填小型腔體方式……………………………………… 55
3-2-4 裝填大型腔體方式……………………………………… 56
3-2-5 遙遠方式………………………………………………… 56
3-3 專利文獻回顧…………………………………………… 57
3-3-1 Lumileds電泳法………………………………………… 57
3-3-2 Cree 溶膠凝膠相互轉換法…………………………… 59
3-3-3 Lumileds 貼片法……………………………………… 59
3-3-4 Cree 模鑄法…………………………………………… 61
3-3-5 Lumileds 模鑄Lens遠離晶片………………………… 63
3-4 Conformal coating 實驗……………………………… 64
第四章螢光粉塗佈實驗與分析………………………………… 68
4-1 第一次螢光粉塗佈實驗………………………………… 68
4-2 第二次螢光粉塗佈實驗………………………………… 80
4-3 大批量製作……………………………………………… 85
第五章結論與建議……………………………………………… 87
5-1 結論分析………………………………………………… 87
5-2 未來發展與應用………………………………………… 88
參考文獻 …………………………………………………………… 93

參考文獻

﹝1﹞N.Holonyak,Jr.and S.F.Bevaqua,”Coherent(visible)Light Emission From Ga(A )Junctions,”Appl.Phys.Lett.1,82-83(1962).
﹝2﹞S.Nakamura,and G.Fasol,The Blue Laser Diode:GaN based light Emitters and lasers Spinger,(1997).
﹝3﹞Y.Shimizu,K.Sakano,Y.Noguchi,and T.Moriguchi,”Light emitting device having a nitride compound semiconductor and a phosphor containing a garnet fluorescent material,”United States Patent,US 59988925,Dec. 7,1999.
﹝4﹞S.Nakamura,T.Mukai,and M.Senoh,”Candela-class high-brightness InGaN/AlGaN double-heterostructure blue-light-emitting diodes,”Appl.Phys.Lett.64,1687-1689(1994).
﹝5﹞Philip Lumileds Lighting,http://www.lumileds.com/.
﹝6﹞E.F.Schubert,Light Emitting Diodes (Cambridge University Press,Cambrige,2003).
﹝7﹞劉如喜,王健源,”白光發光二極體製作技術”,(全華科技圖書公司,2005).
﹝8﹞Mehmet,C.Becker,S.Weaver,and J.Petroski,”Thermal Management of LEDs:Package to System,”Proc.SPIE 5187 ,64(2004).
﹝9﹞L.S.Rohwer,J.E.Martin,“Measuring the absolute quantum efficiency of luminescent materials,”J.Lumin.115,77-90(2005).
﹝10﹞N.R.Taskar,R.N.Bhargava,J.Barone,V.Chhabra,V.Chabra,D. Dorman,A.Ekimov,S.Herko,and B.Kulkarni,“Quantum-Confined-atom-based nanophosphers for solid state lighting,”Proc. SPIE 5187,133-141(2004).
﹝11﹞R. Mueller-Mach,G. Mueller,M. Krames, and T. Trottier,“High-Power Phosphor-converted Light-Emitting Diodes Based on Ш-Nitrides,
”IEEE J.Sel. Topics Quantum Electron., 339-345(2002).
﹝12﹞R. Mueller-Mach, G.O. Mueller,and M.R. Krames,“Phospher materials and combinations for illumination –grade white pcLEDs, ”Proc. SPIE 5187,115-122(2004).
﹝13﹞TracePro, http://www.apic.com.tw/products/cax_tracepro.html.
﹝14﹞C.F. Boren and D.R. Huffmarn,Absorption and Scattering of Light by Small Particles (Wiley,1983).
﹝15﹞S.T. Flock,B.C. Wilson,and M.S.Patterson,“Total attenuation coefficients and scattering phase functions of tissues and phantom materials at 633 nm. ”Med.Phys.,14,835-841(1987).
﹝16﹞M. Igarashi,K. Gono,T. Obi,M. Yamaguchi,and N. Ohyama,“Simulation of spectral reflectance of multiple scattering medium using the Mie theory combined with the Monte Carlo method , ”Pro. SPIE 4955,305-313(2003).
﹝17﹞L.G. Henyey and J.L. Greenstein , “Diffuse radiation in thegalaxy, ”Asrrophys.J.93,70-83(1941).
﹝18﹞D. Toublanc,“Henyey-Greenstein and Mie phase functions in Monte Carlo radiative transfer computations, ”Appl.Opt.35, 3270-3274(1996).
﹝19﹞J. –P. Chevaillier,J. Fabre,and P. Hamelin, “Forward scattered light intensities by a sphere located anywhere in a Gaussian beam, ”Appl. Opt.25,1222-1225(1986) .
﹝20﹞GEMSTONE, http://nature.berkeley.edu/classes/eps2//wisc/ri.
html.
﹝21﹞何信穎，白光LED之YAG螢光粉光學模型之研究，國立中央大學光電所碩士論文，中華民國九十六年。
﹝22﹞Q.Fu,W.B.Sun,and P.Yang,”Modeling of Scattering and Absorption by Nonspherical Cirrus Ice Particles at Thermal Infrared Wavelengths,“J.Atmos.Sci.56,2937-2947(1999).
﹝23﹞P.Yang,B.A.Baum,A.J.Heymsfield,Y.X.Hu,H.Huang,S.Tsay and S.Ackerman,”Single-scatteringproperties of droxtals,”J.Quant.Spectrosc.Radiat.Transfer.79-80,1159-1169(2003).
﹝24﹞M.Mikrenska,P.Koulev,J.-B.Renard,E.Hadamcik and J.-C.Worms,”Direct simulation Monte Carlo ray tracing model of light scattering by a class of real particles and comparison with PROGR experimental results,”J.Quant.Spectrosc.Radiat.Transfer 100,256-267(2006).
﹝25﹞P.Yang,H.Weih,H. L.Huang,B.A.Baum,
Y.X.Hu,G.W.Kattawar,M.I.Mischenko,and Q.Fu,”Scattering and absorption property database for nonspherical ice particles in the near-through far-infrared
spectral region,”Appl.Opt.44,5512-5523(2005)
﹝26﹞C.C.Chang,R.Chen,C.C.Chang,C.Chu,J.Y.Chi,J.Su,I-Min Chan,and J.T.Wang,”Monte Carlo Simulation of Optical Properties of Phospher-Screened Ultraviolet Light-Emitting Device,”Jpn.J.Appl.Phys.44,6056-6061(2005).
﹝27﹞M.Kerker,H.Chew,P.J.McNulty,J.P.Kratohvil,D.D.Cooke,
M.Sculley,and M.P.Lee,”Light scattering and fluorescence by small particles having internal structure ,”Journal of Histochemistry and Cytochemistry 27,250-263(1979).
﹝28﹞Q.Fu and W.Sun,”Mie Theory for Light Scattering by a Spherical Particle in an Absorbing Medium,”Appl.Opt.40,1354-1361(2001).
﹝29﹞I.W.Sudiarta and P.Chylek,”Mie-scattering formalism for spherical Particles embedded in an absorbing medium,”J.Opt.Soc.Am.A 18,1275-1278(2001).
﹝30﹞A.Borbely and S.G.Johnson,”Performance of phosphor-coated light-Emitting diode optics in ray-trace simulations,”Opt.Eng.44,111308-111308-4(2005).
﹝31﹞D.L.MacAdam,Spectrophotometry in Color Measurement ,
(Spinger-Verlag,1981),pp.36-45.
﹝32﹞C.C.Sun,T.-X.Lee,S.-H.Ma,Y.-L.Lee,and S.-M.Huang,”Precise Optical modeling for LED lighting verified by cross correlation in the midfield region,”Opt.Lett.31,2193-2195(2006).
﹝33﹞A.Borbely,S. Johnson,“Performance of phosphor coated LED optics in trace simulations, ”Proc.SPIE 5530,266-273(2004) .
﹝34﹞M. R. Krames, J. Collins, N. Gardner, “High-Power III-Nitride Emitters for Solid-State Lighting , ”Phys. Stat. sol. 192(2),237-245(2002) .
﹝35﹞F.Hu,K.-Y.Qian,and Y.Luo,“Far-field pattern simolution of flip-chip bonded power light-emitting diodes by a Monte Carlo photon-tracing method, ”Appl.Opt.44,2768-2771(2005).
﹝36﹞Á.Borbely and S.G.Johnson,“Prediction of light extraction Efficiency of LEDs by ray trace simulation, ”Proc.SPIE 5187,301-308(2004).
﹝37﹞C.C.Sun ,T.-X.Lee,S.-H.Ma,Y.-L.Lee,and S.-M.Huang,“Precise optical modeling for LED lighting verified by cross correlation in the midfield region , ”Opt.Lett.31,2193-2195(2006).
﹝38﹞C.S.McCamy,“Correlated color temperature as an explicit function of chromaticity coordinates, ”Color Res.Appl.17,142-144(1992).
﹝39﹞J.Hernandez-Andres,R.L.Lee,and J.Romero,“Calculating Correlated Color Temperature Across the Entire Gamut of Daylight and Skylight
Chromaticities , ”Appl.Opt.38,5703-5709(1999).
﹝40﹞R. C. Jordan, J. Bauer, and H. Oppermann,“Optimized heat transfer and homogeneous color converting for Ultra High Brightness LED Package, ”Proc. SPIE 6198, 61980B1-61980B12(2006)Emitters for Solid-State Lighting , ”Phys. Stat. sol. 192(2),237-245(2002) .
﹝41﹞N. Narendran, Y. Gu, J. P. Freyssinier-Nova, and Y. Zhu, “Extracting phosphor-scattered photons to improve white LED efficiency, ” Phys. Stat. Sol. 202, R60-R62(2005).
﹝42﹞W. D. Collins, M. R. Krames, G. J. Verhoeckx, N. J. M. Leth,“Using electrophoresis to produce a conformally coated phosphor converted light emitting semiconductor, ” Patent No. US 6,576,488 B2(2003).
﹝43﹞G. H. Negley, Ban Loh,“Transmissive optical elements including transparent plastic shell having a phosphor dispersed theren,andmethods of fabricating same,”Patent No. US 7,029,935 B2(2006).
﹝44﹞G. Basin, R.S. West,P. S. Martin“Molding lens over led die”Patent No. US 7,452,737 B2(2008).

指導教授

張榮森(Rong-Seng Chang)

審核日期

2012-7-3

推文