Patent ID: 6606134
Filing Date: 2003-08-12
Classification: G02F

Abstract:
A reflective ferroelectric liquid crystal display comprising a chiral smectic, birefringent liquid crystal layer, whose optical axis can be electrooptically rotated in the plane of the display; a polarizer; a pair of parallel plates which enclose the liquid crystal layer and each of which is provided with a surface structure orienting the molecules of the liquid crystal layer and at least one electrode for generating an electric field; and a light-reflecting mirror or a diffuse reflector being coordinated with one of the two plates,wherein the rotation of the optical axis of the liquid crystal layer is not more than +22.5Â°, wherein the display is formed such that it can represent one or more grey values, and wherein, as a further birefringent layer, an electrooptically switchable half-wave plate is arranged between the polarizer and the liquid crystal layer.