Patent ID: 6384892
Filing Date: 2002-05-07
Classification: G02F

Abstract:
A liquid crystal display device comprising pixels and electrodes for driving the pixels, each pixel comprising a display element defined by picture electrodes, which display element comprises layers of orienting material and a layer of liquid crystal material between the picture electrodes, characterized in that, for the quotient Q of a dielectric constant âˆˆLC of the liquid crystal material and the dielectric constant of the layers of orienting material âˆˆol it holds that Q=âˆˆLC/âˆˆol>0.7&rgr;ol/&rgr;LC, in which, for a liquid crystal material having a negative dielectric anisotropy (&Dgr;âˆˆ<0)âˆˆLC, the dielectric constant perpendicular to the directors of the liquid crystal material is (âˆˆâŠ¥), and for a liquid crystal material having a positive dielectric anisotropy (&Dgr;âˆˆ>0)âˆˆLC, the dielectric constant parallel to the directors of the liquid crystal material is (âˆˆ&par;) and &rgr;ol and &rgr;LC are the resistivities of the liquid crystal material and the layers of orienting material, respectively, and wherein the display device is DC driven.