Patent ID: 6803979
Filing Date: 2004-10-12
Classification: G02F

Abstract:
An IPS-LCD device, comprising:first and second substrates opposing each other; a gate line on the first substrate; a data line perpendicular to the gate line; a thin film transistor at a crossing portion between the gate and data lines; a common line parallel to the gate line; a plurality of common electrodes electrically connected to the common line, wherein the common electrodes are spaced apart from each other and covered by a gate-insulating layer, a plurality of pixel electrodes alternately arranged with the plurality of common electrodes, wherein each pixel electrode is spaced apart from an adjacent common electrode and covered by a passivation layer; a plurality of dielectric protrusions on the plurality of common electrodes and pixel electrodes between the first and second substrates, wherein the dielectric protrusions are disposed along reference lines perpendicular to the plurality of common electrodes and pixel electrodes; and a liquid crystal layer between the first and second substrates, wherein the liquid crystal layer and the dielectric protrusion have different dielectric constants.