Abstract

We report a new electrically tunable color filter to actively adjust the correlated color temperature of white light-emitting diodes. With four passive cholesteric films and an active polarization rotator, both circular polarizations of the incident light are utilized to generate complementary blue and yellow colors. The blue/yellow ratio can be tuned by the applied voltage of the polarization rotator. In experiment, the tunable color filter offers a reasonably wide tuning range (1900 K and 2400 K), which resembles the Planckian locus. This design is promising for next generation smart lighting.

© 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]

2016 (2)

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

H. Chen, R. Zhu, Y.-H. Lee, and S.-T. Wu, “Correlated color temperature tunable white LED with a dynamic color filter,” Opt. Express 24(6), A731–A739 (2016).
[Crossref] [PubMed]

2015 (2)

2014 (1)

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

2013 (1)

J. Y. Tsao, I. Brener, D. F. Kelley, and S. K. Lyo, “Quantum-dot-based solid-state lighting with electric-field-tunable chromaticity,” J. Disp. Technol. 9(6), 419–426 (2013).
[Crossref]

2012 (1)

T. W. Murphy., “Maximum spectral luminous efficacy of white light,” J. Appl. Phys. 111(10), 104909 (2012).
[Crossref]

2010 (1)

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

2009 (1)

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

2007 (1)

2005 (1)

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

2004 (2)

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Y. Ohno, “Color Rendering and Luminous Efficacy of White LED Spectra,” Proc. SPIE 5530, 88–98 (2004).
[Crossref]

2002 (2)

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

S. Muthu, F. J. P. Schuurmans, and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8(2), 333–338 (2002).
[Crossref]

2001 (2)

N. Tamaoki, “Cholesteric liquid crystals for color information technology,” Adv. Mater. 13(15), 1135–1147 (2001).
[Crossref]

A. Borbély, A. Sámson, and J. Schanda, “The concept of correlated colour temperature revisited,” Color Res. Appl. 26(6), 450–457 (2001).
[Crossref]

1998 (1)

S. Nakamura, “The roles of structural imperfections in InGaN-based blue light-emitting diodes and laser diodes,” Science 281(5379), 956–961 (1998).
[Crossref] [PubMed]

1997 (1)

S. A. Empedocles and M. G. Bawendi, “Quantum-confined stark effect in single CdSe nanocrystallite quantum dots,” Science 278(5346), 2114–2117 (1997).
[Crossref] [PubMed]

1994 (1)

S. Nakamura, T. Mukai, and M. Senoh, “Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes,” Appl. Phys. Lett. 64(13), 1687–1689 (1994).
[Crossref]

1991 (1)

S. Nakamura, T. Mukai, and M. Senoh, “High-power GaN pn junction blue-light-emitting diodes,” Jpn. J. Appl. Phys. 30(2), L1998–L2001 (1991).
[Crossref]

1990 (1)

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

1971 (1)

M. Schadt and W. Helfrich, “Voltage-dependent optical activity of a twisted nematic liquid crystal,” Appl. Phys. Lett. 18(4), 127–128 (1971).
[Crossref]

Artem’ev, M. V.

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

Artemyev, M. V.

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Barnik, M. I.

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

Bawendi, M. G.

S. A. Empedocles and M. G. Bawendi, “Quantum-confined stark effect in single CdSe nanocrystallite quantum dots,” Science 278(5346), 2114–2117 (1997).
[Crossref] [PubMed]

Belayev, S. V.

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

Bhat, J. C.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Bliznikas, Z.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Borbély, A.

A. Borbély, A. Sámson, and J. Schanda, “The concept of correlated colour temperature revisited,” Color Res. Appl. 26(6), 450–457 (2001).
[Crossref]

Breive, K.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Brener, I.

J. Y. Tsao, I. Brener, D. F. Kelley, and S. K. Lyo, “Quantum-dot-based solid-state lighting with electric-field-tunable chromaticity,” J. Disp. Technol. 9(6), 419–426 (2013).
[Crossref]

Chao, C.-Y.

Chen, H.

Chen, Q.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Chen, S.-H.

Chen, W.-T.

Collins, D.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Coltrin, M. E.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Crawford, M. H.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Demir, H. V.

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Empedocles, S. A.

S. A. Empedocles and M. G. Bawendi, “Quantum-confined stark effect in single CdSe nanocrystallite quantum dots,” Science 278(5346), 2114–2117 (1997).
[Crossref] [PubMed]

Fischer, A. J.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Fletcher, R. M.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Funfschilling, J.

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

Gaponenko, S. V.

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Gaska, R.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Guo, R.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Gurinovich, L. I.

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

He, G.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Helfrich, W.

M. Schadt and W. Helfrich, “Voltage-dependent optical activity of a twisted nematic liquid crystal,” Appl. Phys. Lett. 18(4), 127–128 (1971).
[Crossref]

Holcomb, M. O.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Hong, Q.

Huang, C.-C.

Huang, Y.

Ivanauskas, F.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Karlicek, R. F.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Kelley, D. F.

J. Y. Tsao, I. Brener, D. F. Kelley, and S. K. Lyo, “Quantum-dot-based solid-state lighting with electric-field-tunable chromaticity,” J. Disp. Technol. 9(6), 419–426 (2013).
[Crossref]

Kim, J. K.

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

Koleske, D. D.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Krupic, J.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Kuo, Y.-Y.

Kurilcik, G.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Lee, Y.-H.

Ludowise, M. J.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Luo, Z.

Lutich, A. A.

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Lyo, S. K.

J. Y. Tsao, I. Brener, D. F. Kelley, and S. K. Lyo, “Quantum-dot-based solid-state lighting with electric-field-tunable chromaticity,” J. Disp. Technol. 9(6), 419–426 (2013).
[Crossref]

Lyutich, A. A.

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

Malimoneko, N. V.

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

Martin, P. S.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Mei, S.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Mukai, T.

S. Nakamura, T. Mukai, and M. Senoh, “Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes,” Appl. Phys. Lett. 64(13), 1687–1689 (1994).
[Crossref]

S. Nakamura, T. Mukai, and M. Senoh, “High-power GaN pn junction blue-light-emitting diodes,” Jpn. J. Appl. Phys. 30(2), L1998–L2001 (1991).
[Crossref]

Murphy, T. W.

T. W. Murphy., “Maximum spectral luminous efficacy of white light,” J. Appl. Phys. 111(10), 104909 (2012).
[Crossref]

Muthu, S.

S. Muthu, F. J. P. Schuurmans, and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8(2), 333–338 (2002).
[Crossref]

Nakamura, S.

S. Nakamura, “The roles of structural imperfections in InGaN-based blue light-emitting diodes and laser diodes,” Science 281(5379), 956–961 (1998).
[Crossref] [PubMed]

S. Nakamura, T. Mukai, and M. Senoh, “Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes,” Appl. Phys. Lett. 64(13), 1687–1689 (1994).
[Crossref]

S. Nakamura, T. Mukai, and M. Senoh, “High-power GaN pn junction blue-light-emitting diodes,” Jpn. J. Appl. Phys. 30(2), L1998–L2001 (1991).
[Crossref]

Navickas, A.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Novickovas, A.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Ohno, Y.

Y. Ohno, “Color Rendering and Luminous Efficacy of White LED Spectra,” Proc. SPIE 5530, 88–98 (2004).
[Crossref]

Pashley, M. D.

S. Muthu, F. J. P. Schuurmans, and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8(2), 333–338 (2002).
[Crossref]

Prislopsky, S. Y.

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Raskauskas, V.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Rudaz, S. L.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Rupsys, A.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Rusakov, E. K.

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Sámson, A.

A. Borbély, A. Sámson, and J. Schanda, “The concept of correlated colour temperature revisited,” Color Res. Appl. 26(6), 450–457 (2001).
[Crossref]

Schadt, M.

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

M. Schadt and W. Helfrich, “Voltage-dependent optical activity of a twisted nematic liquid crystal,” Appl. Phys. Lett. 18(4), 127–128 (1971).
[Crossref]

Schanda, J.

A. Borbély, A. Sámson, and J. Schanda, “The concept of correlated colour temperature revisited,” Color Res. Appl. 26(6), 450–457 (2001).
[Crossref]

Schmitt, K.

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

Schubert, E. F.

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

Schuurmans, F. J. P.

S. Muthu, F. J. P. Schuurmans, and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8(2), 333–338 (2002).
[Crossref]

Senoh, M.

S. Nakamura, T. Mukai, and M. Senoh, “Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes,” Appl. Phys. Lett. 64(13), 1687–1689 (1994).
[Crossref]

S. Nakamura, T. Mukai, and M. Senoh, “High-power GaN pn junction blue-light-emitting diodes,” Jpn. J. Appl. Phys. 30(2), L1998–L2001 (1991).
[Crossref]

Shur, M. S.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Steigerwald, D. A.

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

Stupak, A. P.

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Subramania, G. S.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Tamaoki, N.

N. Tamaoki, “Cholesteric liquid crystals for color information technology,” Adv. Mater. 13(15), 1135–1147 (2001).
[Crossref]

Tsao, J. Y.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

J. Y. Tsao, I. Brener, D. F. Kelley, and S. K. Lyo, “Quantum-dot-based solid-state lighting with electric-field-tunable chromaticity,” J. Disp. Technol. 9(6), 419–426 (2013).
[Crossref]

Vaicekauskas, R.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Vitta, P.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Wang, G. T.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Wierer, J. J.

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Wu, S. T.

Wu, S.-T.

Yang, W.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Zhang, W.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Zhong, P.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Zhou, Y.

Zhu, J.

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

Zhu, R.

Zukauskas, A.

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Adv. Mater. (1)

N. Tamaoki, “Cholesteric liquid crystals for color information technology,” Adv. Mater. 13(15), 1135–1147 (2001).
[Crossref]

Adv. Opt. Mater. (1)

J. Y. Tsao, M. H. Crawford, M. E. Coltrin, A. J. Fischer, D. D. Koleske, G. S. Subramania, G. T. Wang, J. J. Wierer, and R. F. Karlicek., “Toward smart and ultra-efficient solid-state lighting,” Adv. Opt. Mater. 2(9), 809–836 (2014).
[Crossref]

Appl. Phys. Lett. (2)

S. Nakamura, T. Mukai, and M. Senoh, “Candela‐class high‐brightness InGaN/AlGaN double‐heterostructure blue‐light‐emitting diodes,” Appl. Phys. Lett. 64(13), 1687–1689 (1994).
[Crossref]

M. Schadt and W. Helfrich, “Voltage-dependent optical activity of a twisted nematic liquid crystal,” Appl. Phys. Lett. 18(4), 127–128 (1971).
[Crossref]

Color Res. Appl. (1)

A. Borbély, A. Sámson, and J. Schanda, “The concept of correlated colour temperature revisited,” Color Res. Appl. 26(6), 450–457 (2001).
[Crossref]

IEEE J. Sel. Top. Quantum Electron. (2)

S. Muthu, F. J. P. Schuurmans, and M. D. Pashley, “Red, green, and blue LEDs for white light illumination,” IEEE J. Sel. Top. Quantum Electron. 8(2), 333–338 (2002).
[Crossref]

D. A. Steigerwald, J. C. Bhat, D. Collins, R. M. Fletcher, M. O. Holcomb, M. J. Ludowise, P. S. Martin, and S. L. Rudaz, “Illumination with solid state lighting technology,” IEEE J. Sel. Top. Quantum Electron. 8(2), 310–320 (2002).
[Crossref]

IEEE Photonics J. (1)

W. Yang, P. Zhong, S. Mei, Q. Chen, W. Zhang, J. Zhu, R. Guo, and G. He, “Photometric optimization of color temperature tunable quantum dots converted white LEDs for excellent color rendition,” IEEE Photonics J. 8(5), 1–11 (2016).
[Crossref]

J. Appl. Phys. (1)

T. W. Murphy., “Maximum spectral luminous efficacy of white light,” J. Appl. Phys. 111(10), 104909 (2012).
[Crossref]

J. Appl. Spectrosc. (1)

L. I. Gurinovich, A. A. Lyutich, A. P. Stupak, M. V. Artem’ev, and S. V. Gaponenko, “Effect of an electric field on photoluminescence of cadmium selenide nanocrystals,” J. Appl. Spectrosc. 77(1), 120–125 (2010).
[Crossref]

J. Disp. Technol. (1)

J. Y. Tsao, I. Brener, D. F. Kelley, and S. K. Lyo, “Quantum-dot-based solid-state lighting with electric-field-tunable chromaticity,” J. Disp. Technol. 9(6), 419–426 (2013).
[Crossref]

Jpn. J. Appl. Phys. (2)

S. Nakamura, T. Mukai, and M. Senoh, “High-power GaN pn junction blue-light-emitting diodes,” Jpn. J. Appl. Phys. 30(2), L1998–L2001 (1991).
[Crossref]

S. V. Belayev, M. Schadt, M. I. Barnik, J. Funfschilling, N. V. Malimoneko, and K. Schmitt, “Large aperture polarized light source and novel liquid crystal display operating modes,” Jpn. J. Appl. Phys. 29(4), L634–L637 (1990).
[Crossref]

Opt. Express (4)

Proc. SPIE (2)

Y. Ohno, “Color Rendering and Luminous Efficacy of White LED Spectra,” Proc. SPIE 5530, 88–98 (2004).
[Crossref]

A. Zukauskas, R. Vaicekauskas, F. Ivanauskas, G. Kurilcik, Z. Bliznikas, K. Breive, J. Krupic, A. Rupsys, A. Novickovas, P. Vitta, A. Navickas, V. Raskauskas, M. S. Shur, and R. Gaska, “Quadrichromatic white solid-state lamp with digital feedback,” Proc. SPIE 5187, 185–198 (2004).
[Crossref]

Science (3)

S. Nakamura, “The roles of structural imperfections in InGaN-based blue light-emitting diodes and laser diodes,” Science 281(5379), 956–961 (1998).
[Crossref] [PubMed]

E. F. Schubert and J. K. Kim, “Solid-state light sources getting smart,” Science 308(5726), 1274–1278 (2005).
[Crossref] [PubMed]

S. A. Empedocles and M. G. Bawendi, “Quantum-confined stark effect in single CdSe nanocrystallite quantum dots,” Science 278(5346), 2114–2117 (1997).
[Crossref] [PubMed]

Semiconductors (1)

L. I. Gurinovich, A. A. Lutich, A. P. Stupak, S. Y. Prislopsky, E. K. Rusakov, M. V. Artemyev, S. V. Gaponenko, and H. V. Demir, “Luminescence in quantum-confined cadmium selenide nanocrystals and nanorods in external electric fields,” Semiconductors 43(8), 1008–1016 (2009).
[Crossref]

Other (3)

D. K. Yang and S. T. Wu, Fundamentals of Liquid Crystal Devices, 2nd ed. (John Wiley & Sons, 2014).

P. R. Boyce, Human Factors in Lighting, 2nd ed. (Taylor & Francis, 2003).

“Osram Opto unveils brilliant-mix LED mixing concept,” LEDs Mag., May 2011. http://www.ledsmagazine.com/articles/2011/05/osram-opto-unveils-brilliant-mix-led-mixing-concept.html .

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Figures (5)

Fig. 1
Fig. 1 Schematic of the proposed CCT-tunable WLED using a tunable color filter. The only active device is the polarization rotator.
Fig. 2
Fig. 2 Measured spectral transmittance of (a) two blue CLC films with opposite handedness, and (b) two yellow CLC films with the same handedness.
Fig. 3
Fig. 3 Measured transmission spectra (normalized) of the tunable color filter at different voltages.
Fig. 4
Fig. 4 (a) Measured transmission spectra and (b) corresponding CCT of WLED #1 under different voltages. (c) CCT tuning path (black crosses) in CIE 1976 color space (CIELUV) where the red triangle denotes the light source point without the tunable color filter. (a) Measured light efficacy of radiation and (b) color rendering index of WLED #1 under different voltages.
Fig. 5
Fig. 5 (a) Measured transmission spectra and (b) corresponding CCT of WLED #2 under different voltages. (c) CCT tuning path (black crosses) in CIE 1976 color space (CIELUV) where the red triangle denotes the light source point without the tunable color filter. (d) Measured light efficacy of radiation and (b) color rendering index of WLED #2 under different voltages.

Equations (3)

Equations on this page are rendered with MathJax. Learn more.

p= 1 HTPc ,
λ 0 = n p= n e + n o 2 p,
Δλ=Δnp=( n e n o )p,

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