Browse > Article
http://dx.doi.org/10.4191/kcers.2013.50.6.454

Optical Properties as Process Condition of Color Conversion Lens Using Low-softening Point Glass for White LED  

Chae, Yoo-Jin (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team)
Lee, Mi-Jai (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team)
Hwang, Jong-Hee (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team)
Lim, Tae-Young (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team)
Kim, Jin-Ho (Korea Institute of Ceramic Engineering and Technology, Optic & Display Material Team)
Jeong, Hee-Suk (Korea Institute of Lighting Technology, Convergent Design Team)
Lee, Young-Sik (Solleds Co. Ltd., R&D Center)
Kim, Deug-Joong (Department of Materials science and Engineering, Sungkyunkwan University)
Publication Information
Journal of the Korean Ceramic Society / v.50, no.6, 2013 , pp. 454-459 More about this Journal
Abstract
Recently, remote phosphors have been reported for application to white LEDs to provide enhanced phosphor efficiency compared with conventional phosphor-based white LEDs. In this study, a remote phosphor was produced by coating via screen printing on a glass substrate with different numbers of phosphor coating. The paste consists of phosphor, lowest softening glass frits, and organic binders. The remote phosphor could be well controlled by varying the phosphor content rated paste. After mounting the remote phosphor on top of a blue LED chip, CCT, CRI, and luminance efficiency were measured and values of 5300 K, 62, and 117 lm/W were respectively obtained in the 80 wt% phosphor with 3 coating layers sintered at $800^{\circ}C$.
Keywords
Color conversion lens; Glass frit; Phosphor; Screen printing; White LED;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 B. M. Song, B. T. Han, and J. H. Lee, "Optimum Design Domain of LED-based Solid State Lighting Considering Cost, Energy Consumption and Realiability," Microelectron. Reliab., 53 [3] 435-42 (2013).   DOI   ScienceOn
2 J. Li, Q. Chen, W. Wu, D. X iao, and J. Zhu, "Densification and Optical Properties of Transparent Ho:YAG Ceramics," J. Optic., Mater., 35 [4] 748-52 (2013).   DOI   ScienceOn
3 B. L. Ahn, C. Y. Jang, S. B. Leigh, S. H. Yoo, and H. G. Jeong, "Effect of LED Lighting on the Cooling and Heating Loads in Office Buildings," Appl. Energy, 113 1484-89 (2014).   DOI   ScienceOn
4 M. Maaspuro and A. Tuominen, "Thermal Analysis of LED Spot Lighting Device Operating in External Natural or Forced Heat Convection," Microelectron. Reliab., 53 [3] 428-34 (2013).   DOI   ScienceOn
5 S. Nishiura, S. Tanabe, K. Fujioka, and Y. Fujimoto, "Properties of Transparent Ce: YAG Ceramic Phosphors for White LED," J. Optic., Mater., 33 688-91 (2011).   DOI   ScienceOn
6 Y. J. Kim and S. M. Park, "$Eu^{2+},\;Mn^{2+}$ Co-doped $Ba_9Y_2Si_6O_{24}$ Phosphors Based on Near-UV-excitable LED Lights," J. Mater., Rea., Bull., 49 469-74 (2014).   DOI   ScienceOn
7 M. Meneghini, L. -R. Trevisanello, G. Meneghesso, E. Zanoni, "A Review on the Reliability of Gan-Based LEDs," IEEE Trans Dev Mater Reliab, 8 [2] 323-31 (2008)   DOI   ScienceOn
8 N. Narendran, Y. Gu, J. P. Freyssinier-Nova, Y. Zhu, "Extracting Phosphor-Scattered Photons to Improve White LED Efficiency," Phys Stat Sol A 202 [6] R60-2 (2005)   DOI   ScienceOn
9 B. F. Fan, H. Wu, Y. Zhao, Y. L. Xian, G. Wang, "Study of Phosphor Thermal-Isolated Packaging Technologies for High-Power White Light-Emitting Diodes," IEEE Photon TechnolLett, 19 [15] 1121-23 (2007)   DOI   ScienceOn
10 Z. Y. Liu, S. Liu, K. Wang, X. B. Luo, "Optical Analysis of Color Distribution in White LEDs with Various Packaging Methods," IEEE Photon TechnolLett, 20 [24] 2027-029 (2008)   DOI   ScienceOn
11 J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, Y. Park, "Strongly Enhanced Phosphor Efficiency in GaInN White Light-Emitting Diodes using Remote Phosphor Configuration and Diffuse Reflector Cup," Jpn. J. Appl. Phys. Part. 2 Letter., 44 [20-23] L649-L651 (2005)   DOI   ScienceOn
12 C. T. LEE and T. J. Wu, "Light Distribution and Light Extraction Improvement Mechanisms of Remote GaN-based White Light-emitting-diodes Using ZnO Nanorod Array," J. Lumin., 137 143-47 (2013).   DOI   ScienceOn
13 O. Koichi, "Organic Chemical Products Company, Daicel Chemical Industries, Co., LTD," Jpn. J. Inst. Elec., 8 17 (2010)
14 H. -S. jeong, J. -G. Lee, H. -L. kang, M. -K. Hwang, M. -J. Lee, J. -H. Kim, Y. -J. Chae, and Y. -S. Lee, "Evaluation of White LED Package Characteristics in Remote Phosphor Structure Depending on Phosphor Coatings," J. KIEEME, 26 [4] 330-34 (2013)   과학기술학회마을   DOI   ScienceOn
15 M. D. Lago, M. Meneghini, N. Trivellin, G. Mura, M. Vanzi, G. Meneghesso, and E. Zanoni, "Phosphor for LED-based Light Sources: Thermal Properties and Reliability Issues," J. Microelectron, Reliab., 52 2164-67 (2012).   DOI   ScienceOn