ANALYSIS OF CAPACITANCE-VOLTAGE CHARACTERISTICS FOR 2-DIMENSIONAL MULTI-CONDUCTOR IN LIQUID-CRYSTAL DISPLAYS

The capacitance voltage characteristics for the two-dimensional multi- conductor in liquid crystal displays (LCDs) are numerically derived by the method of successive over relaxation (SOR). The nonlinear and ani sotropic properties of dielectric constant in the LC cell depend on th e orientation of LC molecules under the influence of inhomogeneous ele ctric field. An LC continuum theory implemented by tensor takes elasti c anisotropy and inhomogeneous electric field into consideration to ca lculate the two-dimensional molecule orientations and potential distri bution in LCDs. The dependence of capacitance on applied voltages and the geometric of LC cell is quantitatively described, Nonlinear capaci tance results in capacitive coupling which causes flicker and adversel y degrades image retention in LCD. (C) 1996 American Institute of Phys ics.