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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 2 — Jan. 10, 2013
  • pp: 219–225

Simple method to obtain accurate pretilt angles for thin twisted nematic liquid-crystal cells

Sheng-Ya Wang and Kei-Hsiung Yang  »View Author Affiliations


Applied Optics, Vol. 52, Issue 2, pp. 219-225 (2013)
http://dx.doi.org/10.1364/AO.52.000219


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Abstract

Modern thin-film-transistor-driven twisted nematic (TN) products on the market require thin cell gaps below the value to satisfy the condition of the Gooch–Tarry first minimum in transmission for fast response times and wide viewing angles. For the first time to our knowledge, we have developed a simple experimental method based on a new configuration of out-of-plane cell rotation and analyzed our data by extended Jones matrix method to obtain accurate pretilt angles for such thin TN cells where the well-accepted configuration of the out-of-plane cell rotation method analyzed by Birecki and Kahn [The Physics and Chemistry of Liquid Crystal Devices (1980), p. 115] was insufficient to address.

© 2013 Optical Society of America

OCIS Codes
(120.2040) Instrumentation, measurement, and metrology : Displays
(160.3710) Materials : Liquid crystals
(230.3720) Optical devices : Liquid-crystal devices

ToC Category:
Physical Optics

History
Original Manuscript: October 2, 2012
Revised Manuscript: November 22, 2012
Manuscript Accepted: December 3, 2012
Published: January 9, 2013

Citation
Sheng-Ya Wang and Kei-Hsiung Yang, "Simple method to obtain accurate pretilt angles for thin twisted nematic liquid-crystal cells," Appl. Opt. 52, 219-225 (2013)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-52-2-219


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References

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