Two-Dimensional and Simultaneous Measurements for Cell thickness and Twist angle Distributions of Reflective Liquid Crystal Displays

Abstract

We propose a two-dimensional (2D) Stokes parameter method for determining cell parameters of reflective LC displays. The hyperfine 2D cell thickness distribution and the 2D twist angle distribution can be determined simultaneously by measuring Stokes parameters of the LC cells at different wavelengths and solving Stokes parameter equations. In addition, these values are discussed and compared with those of the transmissive type LC cell.