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Energy Express

Energy Express

  • Editor: Bernard Kippelen
  • Vol. 20, Iss. S1 — Jan. 2, 2012
  • pp: A62–A68

LED backlight designs with the flow-line method

Dejan Grabovičkić, Pablo Benítez, Juan C. Miñano, and Julio Chaves  »View Author Affiliations

Optics Express, Vol. 20, Issue S1, pp. A62-A68 (2012)

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An LED backlight has been designed using the flow-line design method. This method allows a very efficient control of the light extraction. The light is confined inside the guide by total internal reflection, being extracted only by specially calculated surfaces: the ejectors. Backlight designs presented here have a total optical efficiency of up to 80% (including Fresnel and absorption losses) with an FWHM below 30 degrees. The experimental results of the first prototype are shown.

© 2011 OSA

OCIS Codes
(220.2945) Optical design and fabrication : Illumination design
(080.4298) Geometric optics : Nonimaging optics

ToC Category:
Illumination Design

Original Manuscript: September 30, 2011
Revised Manuscript: November 7, 2011
Manuscript Accepted: November 18, 2011
Published: December 6, 2011

Dejan Grabovičkić, Pablo Benítez, Juan C. Miñano, and Julio Chaves, "LED backlight designs with the flow-line method," Opt. Express 20, A62-A68 (2012)

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  1. J. C. Miñano, P. Benítez, J. Chaves, M. Hernández, O. Dross, and A. Santamaría, “High-efficiency LED backlight optics designed with the flow-line method,” Proc. SPIE5942, 594202, 594202-12 (2005). [CrossRef]
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