ANALYTICAL SIMULATION OF ELECTROOPTICAL PERFORMANCE OF MULTIDOMAIN TWISTED NEMATIC LIQUID-CRYSTAL DISPLAYS

The electrooptical characteristics of multidomain twisted nematic liqu id crystal displays (TN-L CDs), such as optical properties, contrast r atio contours, and gray-scale performance, have been investigated by a computer simulation, where the number of domains of each pixel is cho sen as 1, 2, 4, 8, 16, 32, 64, and 120 with the aim of determining the optimum number of domains. It is shown that the TN LCD with quartered pixels exhibits the best results in terms of the viewing angle and gr ay-scale performance, and furthermore, that more than eight domains gi ves the same result as for the amorphous TN-LCD that has several thous and domains in each pixel.