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Proceedings Paper

Examination and optimizing of a liquid crystal display used as spatial light modulator concerning the fringing field effect
Author(s): Christian Lingel; Tobias Haist; Wolfgang Osten
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Paper Abstract

Due to the small pixel sizes of modern LC-based microdisplays the crosstalk between adjacent pixels has to be taken into account when considering the performance of LCDs used as spatial light modulators in optical setups. This crosstalk effect is called fringing field effect. Measurements show that this effect is anisotropic and therefore has different influences on the diffraction efficiencies of vertical and horizontal gratings. Because such microdisplays are employed in many different holographic applications it is desirable to improve the diffraction efficiency as much as possible. Recently a simulation model of an LCD which takes the fringing field effect into account has been presented. Using this model optimization of blazed gratings is realized to improve the diffraction efficiency.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8490, Laser Beam Shaping XIII, 84900H (15 October 2012); doi: 10.1117/12.929707
Show Author Affiliations
Christian Lingel, Univ. Stuttgart (Germany)
Tobias Haist, Univ. Stuttgart (Germany)
Wolfgang Osten, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 8490:
Laser Beam Shaping XIII
Andrew Forbes; Todd E. Lizotte, Editor(s)

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