Patent ID: 7576821

Claim:
An in-plane switching liquid crystal display device comprising: first and second substrates; a gate line arranged in one direction on the first substrate; a common line arranged on the first substrate; a gate insulation layer on the first substrate; a data line on the gate insulation layer; a first passivation layer on the gate insulation layer; a plurality of common electrodes in contact with the first passivation layer; a second passivation layer on the first passivation layer, wherein the second passivation layer is an inorganic material; a plurality of pixel electrodes on the second passivation layer, wherein the plurality of common electrodes and plurality of pixel electrodes are parallel to and spaced apart from each other; and a liquid crystal layer between the first and second substrates, wherein the gate insulation layer and the first passivation layer include a plurality of common line contact holes, wherein the first passivation layer and the second passivation layer include a drain contact hole for a drain electrode, wherein one of the plurality of pixel electrodes is electrically connected to the drain electrode through the drain contact hole, and wherein each common electrode is electrically connected with the common line through a corresponding common line contact hole.