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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 9 — Mar. 19, 2004
  • pp: 1830–1834

Design and Fabrication of an Integrated Polarized Light Guide for Liquid-Crystal-Display Illumination

Ko-Wei Chien and Han-Ping D. Shieh  »View Author Affiliations


Applied Optics, Vol. 43, Issue 9, pp. 1830-1834 (2004)
http://dx.doi.org/10.1364/AO.43.001830


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Abstract

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 was obtained to increase the utility of light for liquid-crystal illumination.

© 2004 Optical Society of America

OCIS Codes
(260.1440) Physical optics : Birefringence

Citation
Ko-Wei Chien and Han-Ping D. Shieh, "Design and Fabrication of an Integrated Polarized Light Guide for Liquid-Crystal-Display Illumination," Appl. Opt. 43, 1830-1834 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-9-1830

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