Abstract

In order to improve the color uniformity of multi-chip LEDs, a patterned phosphor configuration has been proposed by using pulsing spray process. The patterned phosphor has detached yellow and red phosphor regions matching every single LED chip. Optical performances of different phosphor parameters are experimentally investigated. The results show that the yellow central coating (YCC) configuration produces outstanding performance not only in chromatic uniformity but also in luminous. In comparison with the conventional phosphor coating, the YCC patterned phosphor LED can improve the luminous flux by 20.6%, and decrease the difference of the correlated color temperature (CCT) distribution from 1362K to 489K. We believe that the patterned phosphor configuration can be used for improving optical properties of multi-chip LEDs.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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References

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    [Crossref]
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    [Crossref] [PubMed]

2017 (4)

2016 (5)

S.-P. Ying and H.-Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

Q. Chen, Z. Li, K. Chen, Y. Tang, X. Ding, and B. Yu, “CCT-tunable LED device with excellent ACU by using micro-structure array film,” Opt. Express 24(15), 16695–16704 (2016).
[Crossref] [PubMed]

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

J. Li, Z. Li, G. Liang, S. Yu, Y. Tang, and X. Ding, “Color uniformity enhancement for COB WLEDs using a remote phosphor film with two freeform surfaces,” Opt. Express 24(21), 23685–23696 (2016).
[Crossref] [PubMed]

2015 (5)

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

C.-H. Chiang, H.-Y. Tsai, T.-S. Zhan, H.-Y. Lin, Y.-C. Fang, and S.-Y. Chu, “Effects of phosphor distribution and step-index remote configuration on the performance of white light-emitting diodes,” Opt. Lett. 40(12), 2830–2833 (2015).
[Crossref] [PubMed]

X. Ding, J. Li, Q. Chen, Y. Tang, Z. Li, and B. Yu, “Improving LED CCT uniformity using micropatterned films optimized by combining ray tracing and FDTD methods,” Opt. Express 23(3), A180–A191 (2015).
[Crossref] [PubMed]

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

2014 (3)

2013 (1)

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

2012 (2)

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: Challenges and countermeasures,” Laser Photonics Rev. 7, 408–421 (2012).

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

2010 (2)

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

2005 (1)

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

Arunkumar, P.

Bin-Hai, Y.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Chen, J.

Chen, J.-C.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

Chen, K.

Chen, M.

Chen, Q.

Chen, X.

Chen, Y.-H.

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Chen, Z.

Y. Peng, R. Li, H. Cheng, Z. Chen, H. Li, and M. Chen, “Facile preparation of patterned phosphor-in-glass with excellent luminous properties through screen-printing for high-power white light-emitting diodes,” J. Alloys Compd. 693, 279–284 (2017).
[Crossref]

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

Cheng, H.

Y. Peng, R. Li, H. Cheng, Z. Chen, H. Li, and M. Chen, “Facile preparation of patterned phosphor-in-glass with excellent luminous properties through screen-printing for high-power white light-emitting diodes,” J. Alloys Compd. 693, 279–284 (2017).
[Crossref]

Y. Peng, X. Guo, R. Li, H. Cheng, and M. Chen, “Thermally stable WLEDs with excellent luminous properties by screen-printing a patterned phosphor glass layer on a microstructured glass plate,” Appl. Opt. 56(12), 3270–3276 (2017).
[Crossref] [PubMed]

Chiang, C.-H.

Chien, H.-Y.

S.-P. Ying and H.-Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

Cho, J.

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: Challenges and countermeasures,” Laser Photonics Rev. 7, 408–421 (2012).

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

Chu, S.-Y.

Ding, X.

Ding, X.-R.

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Fang, Y.-C.

Guo, X.

Guo, Z.-Q.

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

Hou-Kuei, H.

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

Im, W. B.

Jian-Min, S.

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

Jia-Sheng, L.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Jia-Xiao, C.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Kim, J. K.

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: Challenges and countermeasures,” Laser Photonics Rev. 7, 408–421 (2012).

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

Kim, S.

Lee, H.

Lee, I. J.

Lee, J. S.

Li, C.

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

Li, H.

Y. Peng, R. Li, H. Cheng, Z. Chen, H. Li, and M. Chen, “Facile preparation of patterned phosphor-in-glass with excellent luminous properties through screen-printing for high-power white light-emitting diodes,” J. Alloys Compd. 693, 279–284 (2017).
[Crossref]

Li, J.

Li, J.-S.

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Li, R.

Y. Peng, X. Guo, R. Li, H. Cheng, and M. Chen, “Thermally stable WLEDs with excellent luminous properties by screen-printing a patterned phosphor glass layer on a microstructured glass plate,” Appl. Opt. 56(12), 3270–3276 (2017).
[Crossref] [PubMed]

Y. Peng, R. Li, H. Cheng, Z. Chen, H. Li, and M. Chen, “Facile preparation of patterned phosphor-in-glass with excellent luminous properties through screen-printing for high-power white light-emitting diodes,” J. Alloys Compd. 693, 279–284 (2017).
[Crossref]

Li, Z.

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

L. Rao, Y. Tang, Z. Li, X. Ding, J. Li, S. Yu, C. Yan, and H. Lu, “Effect of ZnO nanostructures on the optical properties of white light-emitting diodes,” Opt. Express 25(8), A432–A443 (2017).
[Crossref] [PubMed]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

J. Li, Z. Li, G. Liang, S. Yu, Y. Tang, and X. Ding, “Color uniformity enhancement for COB WLEDs using a remote phosphor film with two freeform surfaces,” Opt. Express 24(21), 23685–23696 (2016).
[Crossref] [PubMed]

Q. Chen, Z. Li, K. Chen, Y. Tang, X. Ding, and B. Yu, “CCT-tunable LED device with excellent ACU by using micro-structure array film,” Opt. Express 24(15), 16695–16704 (2016).
[Crossref] [PubMed]

X. Ding, J. Li, Q. Chen, Y. Tang, Z. Li, and B. Yu, “Improving LED CCT uniformity using micropatterned films optimized by combining ray tracing and FDTD methods,” Opt. Express 23(3), A180–A191 (2015).
[Crossref] [PubMed]

Li, Z.-T.

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Liang, G.

Lin, H.-Y.

Lin, M.-T.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

Lin, M.-Y.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

Lin, Y.

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

Liu, C.-H.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

Liu, S.

Liu, Z.-Y.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

Li-Wei, L.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Lu, H.

Lu, Y.-J.

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

Luo, H.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

McKittrick, J.

J. McKittrick and L. E. Shea-Rohwer, “Review: Down Conversion Materials for Solid‐State Lighting,” J. Am. Ceram. Soc. 97(5), 1327–1352 (2014).
[Crossref]

Ming-Chi, K.

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

Niu, H.-B.

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

Pai-Yang, T.

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

Park, Y.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

Peng, Y.

Y. Peng, R. Li, H. Cheng, Z. Chen, H. Li, and M. Chen, “Facile preparation of patterned phosphor-in-glass with excellent luminous properties through screen-printing for high-power white light-emitting diodes,” J. Alloys Compd. 693, 279–284 (2017).
[Crossref]

Y. Peng, X. Guo, R. Li, H. Cheng, and M. Chen, “Thermally stable WLEDs with excellent luminous properties by screen-printing a patterned phosphor glass layer on a microstructured glass plate,” Appl. Opt. 56(12), 3270–3276 (2017).
[Crossref] [PubMed]

Rao, L.

Schubert, E. F.

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: Challenges and countermeasures,” Laser Photonics Rev. 7, 408–421 (2012).

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

Shea-Rohwer, L. E.

J. McKittrick and L. E. Shea-Rohwer, “Review: Down Conversion Materials for Solid‐State Lighting,” J. Am. Ceram. Soc. 97(5), 1327–1352 (2014).
[Crossref]

Shih, T.-M.

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

Sone, C.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

Sun, C.-C.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

Tai, K.-Y.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

Tai, S.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

Tai, S.-C.

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

Tan, Y.-E.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Tang, Y.

L. Rao, Y. Tang, Z. Li, X. Ding, J. Li, S. Yu, C. Yan, and H. Lu, “Effect of ZnO nanostructures on the optical properties of white light-emitting diodes,” Opt. Express 25(8), A432–A443 (2017).
[Crossref] [PubMed]

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

J. Li, Z. Li, G. Liang, S. Yu, Y. Tang, and X. Ding, “Color uniformity enhancement for COB WLEDs using a remote phosphor film with two freeform surfaces,” Opt. Express 24(21), 23685–23696 (2016).
[Crossref] [PubMed]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Q. Chen, Z. Li, K. Chen, Y. Tang, X. Ding, and B. Yu, “CCT-tunable LED device with excellent ACU by using micro-structure array film,” Opt. Express 24(15), 16695–16704 (2016).
[Crossref] [PubMed]

X. Ding, J. Li, Q. Chen, Y. Tang, Z. Li, and B. Yu, “Improving LED CCT uniformity using micropatterned films optimized by combining ray tracing and FDTD methods,” Opt. Express 23(3), A180–A191 (2015).
[Crossref] [PubMed]

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Tsai, H.-Y.

Wang, S.

Wang, Y.-H.

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

Xiao, H.

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

Xin-Rui, D.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Yan, C.

Yang, H.

Yeong-Her, W.

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

Ying, S.-P.

S.-P. Ying and H.-Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

Yong, T.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Yu, B.

Yu, B.-H.

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

Yu, S.

Yu, S.-D.

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Yuan, W.

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Zhan, T.-S.

Zheng, H.

Zhu, B.-M.

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Zong-Tao, L.

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

Appl. Opt. (2)

IEEE Electron Device Lett. (1)

T. Pai-Yang, H. Hou-Kuei, S. Jian-Min, K. Ming-Chi, and W. Yeong-Her, “High Thermal Stability and Wide Angle of White Light Chip-on-Board Package Using a Remote Phosphor Structure,” IEEE Electron Device Lett. 36(3), 250–252 (2015).
[Crossref]

IEEE J. Quantum Electron. (1)

L. Jia-Sheng, C. Jia-Xiao, L. Li-Wei, L. Zong-Tao, T. Yong, Y. Bin-Hai, and D. Xin-Rui, “A Detailed Study on Phosphor-Converted Light-Emitting Diodes With Multi-Phosphor Configuration Using the Finite-Difference Time-Domain and Ray-Tracing Methods,” IEEE J. Quantum Electron. 51, 1–10 (2015).

IEEE Photonics J. (1)

H. Xiao, Y.-J. Lu, Z.-Q. Guo, Y. Lin, T.-M. Shih, and Z. Chen, “Improvements on optical and chromatic uniformities of light-emitting diodes with microscale-roughness-controlled surfaces,” IEEE Photonics J. 7, 1–8 (2015).

IEEE Photonics Technol. Lett. (2)

Z.-Y. Liu, C. Li, B.-H. Yu, Y.-H. Wang, and H.-B. Niu, “Uniform white emission of WLEDs realized by multilayer phosphor with pyramidal shape and inversed concentration distribution,” IEEE Photonics Technol. Lett. 24(17), 1558–1560 (2012).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S.-C. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Ring remote phosphor structure for phosphor-converted white LEDs,” IEEE Photonics Technol. Lett. 22(8), 574–576 (2010).
[Crossref]

IEEE Trans. Electron Dev. (1)

S.-P. Ying and H.-Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

J. Alloys Compd. (1)

Y. Peng, R. Li, H. Cheng, Z. Chen, H. Li, and M. Chen, “Facile preparation of patterned phosphor-in-glass with excellent luminous properties through screen-printing for high-power white light-emitting diodes,” J. Alloys Compd. 693, 279–284 (2017).
[Crossref]

J. Am. Ceram. Soc. (1)

J. McKittrick and L. E. Shea-Rohwer, “Review: Down Conversion Materials for Solid‐State Lighting,” J. Am. Ceram. Soc. 97(5), 1327–1352 (2014).
[Crossref]

J. Disp. Technol. (2)

J.-S. Li, Y.-H. Chen, Z.-T. Li, S.-D. Yu, Y. Tang, X.-R. Ding, and W. Yuan, “ACU Optimization of pcLEDs by combining the pulsed spray and feedback method,” J. Disp. Technol. 12(10), 1229–1234 (2016).
[Crossref]

Z.-T. Li, Y. Tang, Z.-Y. Liu, Y.-E. Tan, and B.-M. Zhu, “Detailed study on pulse-sprayed conformal phosphor configurations for LEDs,” J. Disp. Technol. 9(6), 433–440 (2013).
[Crossref]

Jpn. J. Appl. Phys. (2)

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(21), L649–L651 (2005).
[Crossref]

M.-T. Lin, S.-P. Ying, M.-Y. Lin, K.-Y. Tai, S. Tai, C.-H. Liu, J.-C. Chen, and C.-C. Sun, “Design of the Ring Remote Phosphor Structure for Phosphor-Converted White-Light-Emitting Diodes,” Jpn. J. Appl. Phys. 49(7), 072101 (2010).
[Crossref]

Laser Photonics Rev. (1)

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: Challenges and countermeasures,” Laser Photonics Rev. 7, 408–421 (2012).

Opt. Express (5)

Opt. Lett. (2)

Solid-State Electron. (1)

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Other (2)

D. S. Meyaard, G. B. Lin, J. Cho, and E. F. Schubert, “9 - Efficiency droop in gallium indium nitride (GaInN)/gallium nitride (GaN) LEDs,” in Nitride Semiconductor Light-Emitting Diodes (LEDs), J. Huang, H.-C. Kuo, and S.-C. Shen, eds. (Woodhead Publishing, 2014), pp. 279–300.

C. EZ-1950-P, “ http://www.cree.com/led-chips/products/ez-p-leds/ez1950-p ,” (2015).

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Figures (10)

Fig. 1
Fig. 1 The fabricating process of the patterned phosphor multi-chip LED, (a) the cross-section view of the LED structure, (b) three spraying process with three matched masks.
Fig. 2
Fig. 2 Two configurations of patterned phosphor, (a) yellow central coating (YCC), and (b) red central coating.
Fig. 3
Fig. 3 The luminous flux of YCC and RCC LEDs at different input currents.
Fig. 4
Fig. 4 The spectra of different phosphor island side length, the insert is the Pphosphor/Pchip ratio of different phosphor island side length
Fig. 5
Fig. 5 The radiant power (left) and luminous flux (right) of different side length phosphor islands
Fig. 6
Fig. 6 The chromatic coordinates of different phosphor island side lengths on the CIE1931 chromatic map
Fig. 7
Fig. 7 Luminous fluxes and CCT values of three different silicone thicknesses (H), (a) the schematic diagram about rays emitted at different H, (b) the CCTs and (c) the luminous flux at different H
Fig. 8
Fig. 8 The luminous flux of four types of multi-chip LEDs
Fig. 9
Fig. 9 The correlated color temperature distributions of different types of multi-chip LEDs
Fig. 10
Fig. 10 The normalized intensity distributions of different types of multi-chip LEDs

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