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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 15,
  • Issue 3,
  • pp. 272-277
  • (2011)

Improvement of Color and Luminance Uniformity of the Edge-Lit Backlight Using the RGB LEDs

Open Access Open Access

Abstract

The effect of the M-window color mixing bar on the characteristics of color mixing and hot spots in the edge-lit backlight employing red (R), green (G), blue (G) light emitting diodes (LED) were studied in terms of the structure of the M-window color mixing bar. The rays from RGB LEDs entering the M-window bar were mixed by internal reflection and scattering inside the M-window bar so that the hot spots and color separation were minimized. The M-window bar was designed and fabricated and the simulation results are matched quite well to experimental data.

© 2011 Optical Society of Korea

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