Patent ID: 7385661

Claim:
An in-plane switching mode liquid crystal display device comprising: a plurality of gate and data lines on a substrate that cross each other to define a pixel region; a thin film transistor at a crossing of the plurality of gate and data lines; an organic insulating layer over the substrate including the thin film transistor, and having a step difference in the pixel region, wherein a total thickness of the organic insulating layer in each pixel region is smaller than a thickness in a non-pixel region; common electrodes on the organic insulating layer above the data lines; and pixel electrodes positioned above the organic insulating layer and between the common electrodes, wherein the pixel electrodes in the pixel region are formed along the step difference of the organic insulating layer, and wherein the organic insulating includes: a first organic layer covering the data lines and the thin film transistor except for the pixel region; and a second organic insulating layer over an entire surface of the lower substrate including the first organic insulating layer.