Journal of the Optical Society of Korea

  • 제17권3호
  • /
  • Pages.275-278
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  • 2013
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  • 1226-4776(pISSN)
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  • 2093-6885(eISSN)
한국광학회 (Optical Society of Korea)
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Effect of Wavelength-dependent Scattering on the Color Chromaticity of the LCD Backlight

  • 투고 : 2013.03.29
  • 심사 : 2013.05.27
  • 발행 : 2013.06.25
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초록

The effect of the wavelength-dependent scattering on the change of the color chromaticity in the lightguide panel of a liquid crystal display is examined. The white light emitted from the white LEDs located at the edge of the lightguide propagates in the lightguide and is scattered by the patterned dots that are placed on the bottom of the lightguide. The scattered lights that are far from the LEDs showed reddish color compared to the bluish color that is scattered from the near area from the LEDs. The color difference was between 0.01 to 0.06 depending on the resin and the thickness of the lightguide.

키워드

참고문헌

  1. S. Kobayashi, S. Mikoshiba, and S. Lim, LCD Backlights (John Wiley & Sons, West Sussex, United Kingdom, 2009).
  2. K. Kakinuma, "Technology of wide color gamut backlight with light-emitting diode for liquid crystal display television," Jpn. J. Appl. Phys. 45, 4330-4334 (2006). https://doi.org/10.1143/JJAP.45.4330
  3. C. G. Son, J. H. Yi, J. S. Gwag, J. H. Kwon, and G. Park, "Improvement of color and luminance uniformity of the edge-lit backlight using the RGB LEDs," J. Opt. Soc. Korea 15, 272-277 (2011). https://doi.org/10.3807/JOSK.2011.15.3.272
  4. I. Kim and K. Chung, "Wide color gamut backlight with three band white LED," J. Opt. Soc. Korea 11, 67-70 (2007). https://doi.org/10.3807/JOSK.2007.11.2.067
  5. R. J. Xie, N. Hirosaki, and T. Takeda, "Wide color gamut backlight for liquid crystal displays using three-band phosphor converted white light-emitting diodes," Appl. Phys. Express 2, 022401 (2009). https://doi.org/10.1143/APEX.2.022401
  6. A. Tagaya, M. Nagai, Y. Koike, and K. Yokoyama, "Thin liquid-crystal display backlight system with highly scattering optical transmission polymers," Appl. Opt. 40, 6274-6280 (2001). https://doi.org/10.1364/AO.40.006274
  7. Seinfeld and Pandis, Atmospheric Chemistry and Physics, 2nd ed. (John Wiley and Sons, New Jersey, USA, 2006), Chapter 15.
  8. R. S. Berns, Principles of Color Technology (John Wiley & Sons, New York, USA, 2000).

피인용 문헌

  1. Fiber-based Diffuser Sheet for Liquid Crystal Display Backlight Unit vol.18, pp.3, 2014, https://doi.org/10.3807/JOSK.2014.18.3.251
  2. Design and fabrication of light-guiding plate for a photobioreactor that utilizes sunlight vol.22, pp.5, 2015, https://doi.org/10.1007/s10043-015-0129-y
  3. Simulation Study of Injection-Molded Light Guide Plates for Improving Luminance Uniformity Based on the Measured Replication Quality of Micro-Patterns for LED TV Backlight vol.19, pp.2, 2015, https://doi.org/10.3807/JOSK.2015.19.2.159