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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 17 — Aug. 15, 2011
  • pp: 16022–16031

Highly efficient full-color display based on blue LED backlight and electrochromic light-valve coupled with front-emitting phosphors

Jeong Rok Oh, Hoo Keun Park, Ji Hye Oh, Taejoon Kouh, and Young Rag Do  »View Author Affiliations

Optics Express, Vol. 19, Issue 17, pp. 16022-16031 (2011)

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We report a novel full-color display based on the generation of full-color by blue light approach, so called color-by-blue display. This newly proposed color-by-blue light-valve display combines a blue backlight excitation source, a blue light-valve shutter, and front-emitting phosphor pixels. Careful evaluation shows that the detailed display characteristics as well as excellent cycling durability under a low operation voltage of 3 V easily satisfy the requirements for the current display application. Also, we would like to emphasize that the proposed method shows a conversion efficiency of 20%, surpassing the value (≈5%) seen in the typical liquid crystal displays. Although the switching response reported here is slower than in a commercial display module due to the solution-phase electrochromic nature of the shutter used, a response time close to that of a liquid crystal display is highly feasible, as we suggest.

© 2011 OSA

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(230.0230) Optical devices : Optical devices
(230.1480) Optical devices : Bragg reflectors
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Optical Devices

Original Manuscript: June 3, 2011
Revised Manuscript: July 25, 2011
Manuscript Accepted: July 25, 2011
Published: August 5, 2011

Jeong Rok Oh, Hoo Keun Park, Ji Hye Oh, Taejoon Kouh, and Young Rag Do, "Highly efficient full-color display based on blue LED backlight and electrochromic light-valve coupled with front-emitting phosphors," Opt. Express 19, 16022-16031 (2011)

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  1. N. Kimura, T. Shinomiya, K. Yamamoto, K. Ichimura, Y. Nakagawa, Y. Ishii and M. Matsuura, “Multicolor display by double-layered supertwist-nematic LCD,” Proc. Society for Information Display 49–52 (1988).
  2. H. Kawamoto, “The history of liquid-crystal displays,” Proc. IEEE 90(4), 460–500 (2002). [CrossRef]
  3. N. Bardsley, “Survival of the fittest: the battle for the TV market,” http://ewh.ieee.org/r6/scv/ce/meetings/NB_for_IEEE_Silicon_Valley_CE.pdf , p. 38 (26 April 2005).
  4. R. G. Lindquist, “Wavelength selective cross-connect switch using a MEMS shutter array,” U.S. Pat. 6,535,311 B1 (2003).
  5. K. Wang, M. Sinclair, G. K. Starkweather, and K. F. Böhringer, “An electrostatic zigzag transmissive microoptical switch for MEMS displays,” J. Microelectromech. Syst. 16(1), 140–154 (2007). [CrossRef]
  6. A. L. Pyayt, G. K. Starkweather, and M. J. Sinclair, “A high-efficiency display based on a telescopic pixel design,” Nat. Photonics 2(8), 492–495 (2008). [CrossRef]
  7. X. Wu and A. M. Nakua, “Color electroluminescent display,” U.S. Pat. 0055316A1 (2006).
  8. P. E. Burrows, G. Gu, V. Bulovic, Z. Shen, S. R. Forrest, and M. E. Thompson, “Achieving full-color organic light-emitting devices for lightweight, flat-panel displays,” IEEE Trans. Electron. Dev. 44(8), 1188–1203 (1997). [CrossRef]
  9. K.-C. Cheng, F. R. Chen, and J. J. Kai, “V2O5 nanowires as a functional material for electrochromic device,” Sol. Energy Mater. Sol. Cells 90(7-8), 1156–1165 (2006). [CrossRef]
  10. H. Urano, S. Sunohara, H. Ohtomo, and N. Kobayashi, “Electrochemical and spectroscopic characteristics of dimethyl terephthalate,” J. Mater. Chem. 14(15), 2366–2368 (2004). [CrossRef]
  11. S. Y. Choi, M. Mamak, N. Coombs, N. Chopra, and G. A. Ozin, “Electrochromic performance of viologen-modified periodic mesoporous nanocrystalline anatase electrodes,” Nano Lett. 4(7), 1231–1235 (2004). [CrossRef]
  12. X. W. Sun and J. X. Wang, “Fast switching electrochromic display using a viologen-modified ZnO nanowire array electrode,” Nano Lett. 8(7), 1884–1889 (2008). [CrossRef] [PubMed]
  13. F. Fungo, S. A. Jenekhe, and A. J. Bard, “Plastic electrochromic devices: electrochemical characterization and device properties of a phenothiazine-phenylquinoline donor-acceptor polymer,” Chem. Mater. 15(6), 1264–1272 (2003). [CrossRef]
  14. J. Jonathan, J. Wierer, D. Aurelien, and M. M. Mischa, “III-nitride photonic-crystal light-emitting diodes with high extraction efficiency,” Nat. Photonics 3(3), 163–169 (2009). [CrossRef]
  15. R. Mueller-Mach, R. Mueller, G. O. Krames, M. R. Shchekin, O. B. Schmidt, P. J. Schmidt, H. Bechtel, C.-H. Chen, and O. Steigelmann, “All-nitride monochromatic amber-emitting phosphor-converted light-emitting diodes,” Phys. Status Solidi RRL 3(7-8), 215–217 (2009). [CrossRef]
  16. J. R. Oh, S.-H. Cho, Y. H. Lee, and Y. R. Do, “Enhanced forward efficiency of Y3Al5O12:Ce3+ phosphor from white light-emitting diodes using blue-pass yellow-reflection filter,” Opt. Express 17(9), 7450–7457 (2009). [CrossRef] [PubMed]
  17. S.-H. Cho, J. R. Oh, H. K. Park, H. K. Kim, Y.-H. Lee, J.-G. Lee, and Y. R. Do, “Highly efficient phosphor-converted white organic light-emitting diodes with moderate microcavity and light-recycling filters,” Opt. Express 18(2), 1099–1104 (2010). [CrossRef] [PubMed]
  18. J. R. Oh, S.-H. Cho, H. K. Park, J. H. Oh, Y.-H. Lee, and Y. R. Do, “Full down-conversion of amber-emitting phosphor-converted light-emitting diodes with powder phosphors and a long-wave pass filter,” Opt. Express 18(11), 11063–11072 (2010). [CrossRef] [PubMed]
  19. Y. R. Do, K. Y. Ko, S.-H. Na, and Y.-D. Huh, “Luminescence properties of potential Sr1−xCaxGa2S4:Eu green- and greenish-yellow-emitting phosphors for White LED,” J. Electrochem. Soc. 153(7), H142–H146 (2006). [CrossRef]
  20. N. Kobayashi, S. Miura, M. Nishimura, and H. Urano, “Organic electrochromism for a new color electronic paper,” Sol. Energy Mater. Sol. Cells 92(2), 136–139 (2008). [CrossRef]
  21. Y. D. Huh, J.-H. Shim, Y. Kim, and Y. R. Do, “Optical properties of three-band white light emitting diodes,” J. Electrochem. Soc. 150(2), H57–H60 (2003). [CrossRef]
  22. R.-J. Xie and N. Hirosaki, “Silicon-based oxynitride and nitride phosphors for white LEDs - A review,” Sci. Technol. Adv. Mater. 8(7-8), 588–600 (2007). [CrossRef]
  23. Y. R. Do and J. W. Bae, “Application of photoluminescence phosphors to a phosphor-liquid crystal display,” J. Appl. Phys. 88(8), 4660–4665 (2000). [CrossRef]

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