An IPS (in-plane switching mode) liquid crystal display device and
fabricating method thereof, in which post treatment lowering the pre-tilt
angle is performed on a rubbed alignment layer on a substrate using a
non-rubbing method such as UV or ion-beam irradiation, and by which a
viewing angle characteristic is enhanced. The present invention includes
a first substrate, a second substrate, a gate line and a data line
crossing with each other on the first substrate to define a pixel area, a
thin film transistor at a crossing of the gate and data lines, a pixel
electrode and a common electrode alternately arranged in the pixel area a
predetermined interval from each other, an alignment layer over the pixel
and common electrodes having a pre-tilt angle equal to or smaller than
about 1.degree., and a liquid crystal layer between the first and second
substrates.