Theoretical and experimental study of nematic liquid crystal display cells using the in-plane-switching mode

Author

Di Pasquale, Fabrizio ; Deng, Hui Fang ; Fernández, F. Aníbal ; Day, Sally E. ; Davies, J. Brian ; Johnson, M.T. ; van der Put, A.A. ; van de Eerenbeemd, J.M.A. ; van Haaren, J.A.M.M. ; Chapman, Jeff A.

Author_Institution

Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK

Volume

46

Issue

4

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

661

Lastpage

668

Abstract

In this paper a two-dimensional (2-D) dynamic model, based on a tensor formulation and solved numerically by combining finite elements and finite differences, is proposed and used for analyzing nematic liquid crystal (LC) test cells with interdigital electrodes. We compare theoretical and experimental results concerning the switching behavior, response mechanism, and viewing angle characteristics of nematic LC pixel structures which use the in-plane-switching (IPS) mode. The good agreement observed between theory and experiment in terms of electro-optical properties validates our modeling and demonstrates its potential for design optimization. We show that the proposed LC test cells, using the in-plane-switching mode, ensure switching-ON and -OFF response times of 22 and 28 ms, respectively, and excellent viewing angle characteristics

Keywords

large screen displays; liquid crystal displays; nematic liquid crystals; tensors; 22 ms; 28 ms; 2D dynamic model; design optimization; electro-optical properties; in-plane-switching mode; interdigital electrodes; nematic liquid crystal display cells; response mechanism; response times; switching behavior; tensor formulation; viewing angle characteristics; Application software; Delay; Electrodes; Laboratories; Liquid crystal displays; Liquid crystals; Tensile stress; Testing; Two dimensional displays; Voltage;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.753698

Filename

753698