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Proceedings Article

Backlight pattern optimization

[+] Author Affiliations
William J. Cassarly

Optical Research Associates

Proc. SPIE 6834, Optical Design and Testing III, 683407 (November 28, 2007); doi:10.1117/12.774789
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From Conference Volume 6834

  • Optical Design and Testing III
  • Yongtian Wang; Theo T. Tschudi; Jannick P. Rolland; Kimio Tatsuno
  • Beijing, China | November 11, 2007


Backlight displays using edge lit light guides are found in many applications, including cell phones and compute lap tops. The light guide extractor pattern is adjusted to provide the desired spatial distribution across the display. The extractor pattern optimization can be performed using Monte Carlo simulations. Multiple examples are discussed. Examples include backlights with multiple LEDs, a rod luminaire, a key pad illuminator, and a non-uniformly shaped light guide.

© (2007) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.

William J. Cassarly
"Backlight pattern optimization", Proc. SPIE 6834, Optical Design and Testing III, 683407 (November 28, 2007); doi:10.1117/12.774789; http://dx.doi.org/10.1117/12.774789

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