Fast fringe-field switching of a liquid crystal cell by two-dimensional confinement with virtual walls.
We report a simple method for reducing the response time of a fringe-field switching liquid crystal cell by using two-dimensional confinement of the liquid crystals. Through both numerical calculations and experiments, we show that the switching speed can be increased by several fold in a fringe-field switching cell by simply using a rubbing angle of zero, which causes virtual walls to be built when an electric field is applied between the interdigitated electrodes and the common electrode, without requiring additional fabrication steps or complicated drive schemes. Furthermore, the devices fabricated with this method exhibit a reduced color shift and excellent dynamic stability, even with a high applied voltage and under external pressure.
Pusan National University, Department of Electronics Engineering, Busan, 46241, Korea.
Tae-Hoon
TH
Choi
Pusan National University, Department of Electronics Engineering, Busan, 46241, Korea.
Seung-Won
SW
Oh
Pusan National University, Department of Electronics Engineering, Busan, 46241, Korea.
Young-Jin
YJ
Park
Pusan National University, Department of Electronics Engineering, Busan, 46241, Korea.
Yeongyu
Y
Choi
Pusan National University, Department of Electronics Engineering, Busan, 46241, Korea.
Tae-Hoon
TH
Yoon