Optical Compensation of Circular Polarized High-Transmittance Vertically Aligned Liquid Crystal Displays

Abstract

In this paper we propose an optical configuration for the vertical alignment liquid crystal cell with circular polarizer that can realize a wideband and wide viewing angle properties. We expect that the high optical properties will be obtained by using two biaxial films, a quarter-wave plate and a negative C-plate. The proposed optical configuration was performed on the Poincaré sphere using the Stokes vector and the Muller matrix method. We also compared the improved optical characteristics of the proposed configuration with the conventional configuration in oblique direction.

Keywords:

• Circular polarizer
• color shift
• liquid crystal
• Poincaré sphere
• vertical alignment
• wide viewing angle

Acknowledgment

This work was supported by the Dong-A university Research Fund.