Optimization of panel parameters and drive signals for high-speed matrix addressing of a bistable twisted-nematic liquid crystal display

In this paper, we introduce a method to optimize panel parameters and drive signals in a matrix-addressed bistable twisted-nematic (BTN) liquid crysta l display (LCD) panel. We measure the effect of data pulses on optical swit ching characteristics in a BTN LC cell to model the effect theoretically We introduce a weighting function to model the effect of data pulses on the s witching energy as a function of time. Once the weighting function is known , we can estimate the maximum number of lines for a multiplexing operation at a given frame rate by calculating the minimum data pulse width. By chara cterizing a unit cell while varying panel parameters (for example, dip rati o), we can optimize parameters for high-speed operation. We found that our theoretical predictions agree very well with experimental results.