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

In this paper a two-dimensional (2-D) dynamic model, based on a tensor form ulation and solved numerically by combining finite elements and finite diff erences, is proposed and used for analyzing nematic liquid crystal (LC) tes t cells with interdigital electrodes. We compare theoretical and experiment al results concerning the switching behavior, response mechanism, and viewi ng angle characteristics of nematic LC pixel structures which use the in-pl ane-switching (IPS) mode. The good agreement observed between theory and ex periment in terms of electrooptical properties validates our modeling and d emonstrates its potential for design optimization. We show that the propose d 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 a ngle characteristics.