Patent ID: 8149369

Claim:
A unit pixel of an in-plane switching (IPS) mode LCD device, wherein the unit pixel is arranged in a unit pixel region defined by at least one gate line crossing at least one data line, the unit pixel comprising: a plurality of pixel electrodes arranged in the unit pixel region, wherein each pixel electrode is configured to apply a pixel voltage from the data line; and a plurality of common electrodes correspondingly arranged in the unit pixel region, wherein each common electrode is configured to apply a common voltage from a common line in parallel with the data line to form electric field in conjunction with the corresponding pixel electrodes; wherein the unit pixel region is vertically divided into over three sub-regions, wherein at least one pixel electrode spans all sub-regions, and wherein a bent angle of the at least one pixel electrode in a sub-region is different from the bent angle of the at least one pixel electrode in an adjacent sub-region, wherein the bent angle is measured relative to the gate line, wherein each angle of the over three sub regions is gradually decreased, wherein a first angle of a first sub region adjacent to the data line is larger than a second angle of a second sub region adjacent to the first sub region and the second angle of the second sub region is larger than a third angle of a third sub-region adjacent to the second sub region.