Abstract
AbstractWe have modeled the switching behavior of a TN cell using the one dimensional Ericksen‐Leslie equations of nematodynamics. We compare the modeling results with experimental data on the luminance versus time of a normally white twisted nematic (NWTN) cell. Excellent agreement between experiment and model is achieved at all voltages and viewing angles. To achieve this agreement, only two viscosity parameters are required; these are combinations of the Leslie viscosity coefficients, namely γ1(i.e. α3)−α2 and α4)+α5. These parameters are easily determined from dynamic optical measurements of a TN cell.With an adaptive time step, the equations can be solved on a time scale that makes interactive computing possible. Combined accuracy and speed make the model useful as a device design tool. For example, liquid crystal response to different active addressing schemes could be accurately modeled, eliminating the need for costly and time consuming testbedding of different schemes.
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