Simulation of Twisted Nematic (TN) Liquid Crystal Cell
应用文章
This application note demonstrates the simulation of a 90-degree twisted nematic (TN) Liquid Crystal cell using RSoft’s FullWAVE and Multi-Variable Optimization and Scanning Tool (MOST). TN cells are essential in optical applications like displays and modulators, where they achieve achromatic polarization rotation in compact layers.
The modeled structure consists of three segments with varying crystal axis orientations to create the twisted alignment. A transverse electric (TE)-polarized plane wave at 0.6328 μm wavelength is used to analyze how transmission varies with the length of the TN segment. The simulation results show the transmittance vs. TN cell length and its relationship to the Mauguin parameter, confirming close agreement with theoretical predictions.