Patent ID: 8450744

Claim:
A manufacturing method of a high light transmittance in-plan switching liquid crystal display device comprising: forming a gate element including a gate line on a transparent substrate; forming a gate insulating layer covering the gate element; forming a data line crossing the gate line on the gate insulating layer to define a pixel area, and an additional insulating layer having same size and shape with the data line and contacting on the data line; forming a pixel electrode contacting some portions of a drain electrode and having a rectangular shape within a pixel area defined by the gate line and the data line; forming a passivation layer on the additional insulating layer; and forming a common electrode covering the data line on the passivation layer and including a comb ribs pattern in which a plurality of segments having a predetermined width are arrayed in parallel with a predetermined gap, within the pixel area wherein the additional insulating layer includes a photo acryl; and the gate insulating layer includes at least one of silicon nitride and silicon oxide.