Patent ID: 8339555
Filing Date: 2012-12-25
Classification: G02F

Abstract:
1. An in-plane switching liquid crystal display device, comprising: a gate line along a first direction and a data line along a second direction on a substrate, the gate and data lines crossing each other to define a pixel region; a thin film transistor electrically connected to the gate and data lines; a pixel electrode electrically connected to the thin film transistor and having a plurality of portions; a pixel connecting line parallel to the gate line, the pixel connecting line overlapping and contacting a drain electrode of the thin film transistor; a common electrode having a plurality of parts, which are alternately arranged with the portions of the pixel electrode to form first to nth (n is a natural number) blocks in the pixel region; a common line parallel with the gate line and connected to the common electrode, the common line connected to a common electrode in a next pixel region adjacent to the pixel region along the first direction and disposing between the gate line and a previous gate line adjacent to the gate line, wherein a first distance between the common line and the previous gate line is shorter than a second distance between the common line and the gate line, wherein the first distance is shorter than lengths of the pixel electrode and the common electrode, and the second distance is longer than the lengths of the pixel electrode and the common electrode; and a gate insulating layer on the gate line and the common electrode, wherein the data line is on the gate insulating layer, wherein widths of the first and nth blocks are wider than widths of the second to (n−1)th blocks, wherein the widths of the first and nth blocks are the same and the widths of the second to (n−1)th blocks are the same, wherein the blocks from the first to nth block in the pixel region are formed without overlapping with any of the plurality of portions of the pixel electrode or any of the plurality of parts of the common electrode in the pixel region, wherein the common electrode is branched directly from a side of the common line, wherein the pixel electrode is branched directly from the pixel connecting line, and wherein the common electrode and the common line are spaced apart from the pixel electrode and the pixel connecting line along the first and second directions, wherein each of the parts and portions has the same width, wherein the width of the parts is the same as the width of the portions, wherein the pixel electrode is formed in a plane higher than a plane where the common electrode is formed and does not overlap with the common electrode when viewed in a cross section taken along a thickness direction of the in-plane switching liquid crystal display device wherein one of the parts of the common electrode has a shorter length than the remaining parts of the common electrode.