Title

Reflective liquid-crystal displays with asymmetric incident and exit angles

Authors

Authors

Z. B. Ge; T. X. Wu; X. Y. Zhu;S. T. Wu

Comments

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Abbreviated Journal Title

J. Opt. Soc. Am. A-Opt. Image Sci. Vis.

Keywords

JONES MATRIX REPRESENTATION; 4 X 4; ANISOTROPIC MEDIA; OBLIQUE-INCIDENCE; THIN-FILM; OPTICS; PROPAGATION; Optics

Abstract

The 2 X 2 matrix methods are extended to calculate the optical behaviors of reflective liquid-crystal displays with asymmetric incident and exit angles. Both the unfolding method and the backward -eigenwave method are employed to derive the 2 X 2 matrix representations. The simulation results for symmetric incident and exit angles from these two methods are identical and agree well with those obtained from the 4 X 4 matrix method when the air-panel surface reflections are neglected. Further, the derived 2 X 2 matrix methods are applied to the asymmetric cases with different incident and exit angles. The simulated results on the normally black vertical alignment and normally white mixed-mode twisted nematic reflective displays show reasonably good agreement with the reported experimental data. In addition, a rubbing effect related to contrast values is observed and analyzed in asymmetric reflective cases. We also find that this effect has a significant influence on the contrast ratios once the difference between the incident and exit angles becomes large. (c) 2005 Optical Society of America.

Journal Title

Journal of the Optical Society of America a-Optics Image Science and Vision

Volume

22

Issue/Number

5

Publication Date

1-1-2005

Document Type

Article

Language

English

First Page

966

Last Page

977

WOS Identifier

WOS:000228742800019

ISSN

1084-7529

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