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Proceedings Paper

Novel supertwisted nematic liquid-crystal-display operating modes and electro-optical performance of generally twisted nematic configurations
Author(s): Martin Schadt
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Paper Abstract

Operation of generally twisted nematic liquid crystal displays (LCDs) in circularly instead of in conventional, linearly polarized operating modes is shown to allow the design of reflective supertwisted nematic (STN)-LCDs with 2-3 times improved multiplexibility and/or shorter response times. One single circular or linear polarizer and in-situ reflectors simplify and improve LCD projection systems. The optical thresholds of low bias tilt, generally twisted nematic LC configurations are shown to agree with their mechanical thresholds.

Paper Details

Date Published: 1 June 1991
PDF: 11 pages
Proc. SPIE 1455, Liquid-Crystal Devices and Materials, (1 June 1991); doi: 10.1117/12.44693
Show Author Affiliations
Martin Schadt, F. Hoffman-LaRoche Ltd. (Switzerland)

Published in SPIE Proceedings Vol. 1455:
Liquid-Crystal Devices and Materials
Paul S. Drzaic; Uzi Efron, Editor(s)

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