Transflective Blue-Phase Liquid Crystal Display Using an Etched In-Plane Switching Structure

Abstract

A transflective polymer-stabilized blue-phase liquid crystal display (BP-LCD) using an etched in-plane switching (IPS) structure is proposed. To balance the optical phase retardation between the transmissive ( <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</i> ) - and reflective ( <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">R</i> ) -regions, IPS electrodes are formed with the same dimensions in both <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</i> - and <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">R</i> -regions, and the substrate between the electrodes is etched for generating double-penetrating fringe fields only in the <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</i> -region . This display exhibits a reasonably wide viewing angle and well-matched voltage dependent transmittance and reflectance curves.