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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)
http://dx.doi.org/10.1364/OE.20.000A62


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Abstract

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

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

Citation
Dejan Grabovičkić, Pablo Benítez, Juan C. Miñano, and Julio Chaves, "LED backlight designs with the flow-line method," Opt. Express 20, A62-A68 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-S1-A62


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References

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