Ayako Ogawa

Material characteristics of an active matrix LCD based upon chiral smectics

We describe the material properties of a fast switching active matrix ferroelectric liquid crystal mode. The mode relies on a monostable monodomain having a high transmission and full grey scale capability. Experimental data are compared with the results of switching model calculations and the switching mechanism is discussed. The mode is suitable for video and multimedia application and compatible with conventional amorphous silicon thin film transistors due to the small value of the spontaneous polarization.

FLC materials for active and passive matrix displays

Abstract We present material properties and applications of passive matrix inverse and normal mode FLC displays to be applied in a variety of fields such as high-resolution monitors and smart card displays. We further describe the material properties of an active matrix technique with analogue grey levels and with temperature independent voltage threshold. A switching model for this effect is presented.