Compensation for phase dispersion in horizontal-switching liquid crystal cell for improved viewing angle

Abstract

In this paper we propose an optical configuration of a horizontal-switching liquid crystal (LC) cell with two positive C-plates and a single A-plate in order to improve the optical property in the diagonal direction, which is a weakness of horizontal-switching LC cells. The proposed configuration's optical design was performed on a Poincaré sphere with the trigonometric method. From calculations, we show that the proposed structure can increase the contrast ratio in the diagonal direction by about 10 times.