Reflective Dual Mode Liquid Crystal Display with Dynamic Mode Utilizing the Transition Behavior between the Two Stable States of Its Memory Mode

In this study, we have proposed a dual-mode liquid crystal display (D-LCD) that can display both the memory and dynamic modes in one cell. The two stable states of the memory mode use splay and -π-twist states. The operation of the dynamic mode is realized by the transition behavior between the two stable states of its memory mode. For a green display, we have also proposed a reflective D-LCD with an optically compensated structure. We found that both the memory and dynamic modes have contrast ratios (CRs) of 30:1 by a good wavelength dispersion of dark state.