Patent ID: 8023084

Claim:
A method for manufacturing an in-plane switching mode liquid crystal display device, comprising: providing first and second substrates that face each other; horizontally forming gate and common lines spaced apart from each other by a predetermined distance on the first substrate; forming a data line substantially perpendicular to the gate line; forming a plurality of common electrodes substantially parallel to the data line, and a plurality of pixel electrodes in an alternating patter with the common electrodes; forming a first alignment layer on the first substrate including the pixel electrodes; performing a primary alignment on the first alignment layer using a rubbing process; performing a secondary alignment on the whole rubbed first alignment layer by irradiating a light with a predetermined energy thereon, wherein at least one of the gate line, the data line, the pixel electrode, and the common electrode have a stepped portion with a step difference of about 0.1 μm or greater, and wherein the secondary alignment process is performed on at least a portion of the alignment layer around the stepped portion; forming a color filter layer and a black matrix layer on the second substrate; and forming a liquid crystal layer between the first and second substrates, wherein the light is one of a linearly polarized light, a partially polarized light, and a non-polarized light, wherein the light has a wavelength band of about 200˜400 nm, wherein the predetermined energy is selected from about 0.01˜0.10 J, wherein the light is irradiated in a slanted or vertical direction, wherein the first alignment layer is formed one of polyamic acid, polyethyleneimine, polyvinyl alcohol, polyethylene, polystylene, polyphenylenephthalamide, polyester, polyurethanes and polymethylmethacrylate, wherein a rubbing direction of the primary alignment is identical to an alignment direction of the secondary alignment.