Abstract

A Wide Color Gamut Backlight system was studied using a three-band white Light-Emitting Diode. A three-band white light-emitting diode (LED) was fabricated using an InGaN-based blue LED chip that emits 445-nm blue peak, and a green phosphor and red phosphor that emit 535-nm green and 621-nm red peak emissions, respectively, when excited by 450-nm blue light. Using for this three-band white LED, wide color gamut backlight unit (BLU) was attained. The luminance of BLU and CIE 1931 chromaticity coordinates was <TEX>$1,700Cd/m^2$</TEX> and (0.337, 0.346). Color filter matching simulations for this configuration show that the three-band white LED backlight can be enhanced by up to 16% over conventional white LED backlight color gamut.

© 2007 Optical Society of Korea

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References

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  1. Koichiro Kakinuma, "Technology of Wide Color Gamut Backlight with Light Emitting Diode for Liquid Crystal Television," Jpn. J. Appl. Phys. vol. 45, no. 5B, pp. 4330-4334, 2006
    [CrossRef]
  2. Roy. S. Berns, Bilmeyer, and Saltzman"s Principles of Color Technology (Wiley-Interscience Publication) Chapter 2
  3. H. S. Koo, M. Chen, and P. C. Pan, "LCD-based color filter films fabricated by a pigment-based colorant photo resist inks and printing technology," Thin Soild Fims. 515. pp. 896-901, 2006
    [CrossRef]
  4. H. Wu, X. Zhang, C. Guo, J. Xu, M. Wu, and Q. Su, "Three-Band White Light From InGaN-Based Blie LED Chip Precoated With Green/Red Phosphors," IEEE Photonics Technology Letters, vol. 17, no. 6, pp. 1160-1162, June 2005
    [CrossRef]
  5. W. Y. Lee , T. K. Lim, and Y. W. Lee, I. W. Lee, "Fast Ray-tracing Methods for LCD Backlight Simulation using the Characteristics of the Pattern," Optical Engineering. 44(1), pp. 014004, January 2005
    [CrossRef]

2006

Koichiro Kakinuma, "Technology of Wide Color Gamut Backlight with Light Emitting Diode for Liquid Crystal Television," Jpn. J. Appl. Phys. vol. 45, no. 5B, pp. 4330-4334, 2006
[CrossRef]

H. S. Koo, M. Chen, and P. C. Pan, "LCD-based color filter films fabricated by a pigment-based colorant photo resist inks and printing technology," Thin Soild Fims. 515. pp. 896-901, 2006
[CrossRef]

2005

H. Wu, X. Zhang, C. Guo, J. Xu, M. Wu, and Q. Su, "Three-Band White Light From InGaN-Based Blie LED Chip Precoated With Green/Red Phosphors," IEEE Photonics Technology Letters, vol. 17, no. 6, pp. 1160-1162, June 2005
[CrossRef]

W. Y. Lee , T. K. Lim, and Y. W. Lee, I. W. Lee, "Fast Ray-tracing Methods for LCD Backlight Simulation using the Characteristics of the Pattern," Optical Engineering. 44(1), pp. 014004, January 2005
[CrossRef]

2000

Roy. S. Berns, Bilmeyer, and Saltzman"s Principles of Color Technology (Wiley-Interscience Publication) Chapter 2

IEEE Photonics Technology Letters

H. Wu, X. Zhang, C. Guo, J. Xu, M. Wu, and Q. Su, "Three-Band White Light From InGaN-Based Blie LED Chip Precoated With Green/Red Phosphors," IEEE Photonics Technology Letters, vol. 17, no. 6, pp. 1160-1162, June 2005
[CrossRef]

Japanese Journal of Applied Physics

Koichiro Kakinuma, "Technology of Wide Color Gamut Backlight with Light Emitting Diode for Liquid Crystal Television," Jpn. J. Appl. Phys. vol. 45, no. 5B, pp. 4330-4334, 2006
[CrossRef]

Optical Engineering

W. Y. Lee , T. K. Lim, and Y. W. Lee, I. W. Lee, "Fast Ray-tracing Methods for LCD Backlight Simulation using the Characteristics of the Pattern," Optical Engineering. 44(1), pp. 014004, January 2005
[CrossRef]

Thin Soild Fims

H. S. Koo, M. Chen, and P. C. Pan, "LCD-based color filter films fabricated by a pigment-based colorant photo resist inks and printing technology," Thin Soild Fims. 515. pp. 896-901, 2006
[CrossRef]

Other

Roy. S. Berns, Bilmeyer, and Saltzman"s Principles of Color Technology (Wiley-Interscience Publication) Chapter 2

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