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Proceedings Paper

Effect of thickness on PDLC electro-optics
Author(s): Robert B. Akins; John L. West
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Paper Abstract

Liquid crystal/polymer dispersions have widely recognized promise as light modulators in projection displays for high definition video. Achieving switching voltages compatible with active matrix display drivers while maintaining good on-screen contrast remains an area of active material research. As the driving voltage depends linearly on the liquid crystal/polymer dispersion thickness, one simple method to lower driving voltage is to operate with thinner dispersions. This approach has a significant impact on contrast ratio. We report on the results of a study of the dependence of the driving voltage and contrast ratio as a function of thickness. For very thin samples the voltage does not decrease with thickness and the contrast is greatly reduced, indicating a clear limit to this approach.

Paper Details

Date Published: 15 June 1992
PDF: 10 pages
Proc. SPIE 1665, Liquid Crystal Materials, Devices, and Applications, (15 June 1992); doi: 10.1117/12.60396
Show Author Affiliations
Robert B. Akins, Kent State Univ. (United States)
John L. West, Kent State Univ. (United States)

Published in SPIE Proceedings Vol. 1665:
Liquid Crystal Materials, Devices, and Applications
Paul S. Drzaic; Uzi Efron, Editor(s)

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