Design and fabrication of an integrated polarized light guide for liquid-crystal-display illumination.

@article{Chien2004DesignAF,
  title={Design and fabrication of an integrated polarized light guide for liquid-crystal-display illumination.},
  author={Ko‐Wei Chien and Han-Ping David Shieh},
  journal={Applied optics},
  year={2004},
  volume={43 9},
  pages={
          1830-4
        }
}
An integrated polarized light guide was designed and fabricated for use as a liquid-crystal backlight with emphasis on uniformity of the light and conversion of p-polarized to s-polarized light. Two different micro-optical structures were fabricated both on the top and the bottom surfaces of the light guide. On the top surface, a subwavelength grating separates s-polarized and p-polarized light to achieve a polarization-conversion efficiency of 69%. A 1.7 gain factor of polarization efficiency… 
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