A liquid crystal display device includes an upper substrate and a lower substrate
facing and spaced apart from each other; an upper orientation film on an inner
surface of the upper substrate; a lower orientation film on an inner surface of
the lower substrate; a liquid crystal layer interposed between the upper and lower
orientation films; an upper polarizing plate on an outer surface of the upper substrate;
a lower polarizing plate on an outer surface of the lower substrate; and at least
one compensation film disposed between the upper substrate and the upper polarizing
plate or between the lower substrate and the lower polarizing plate. In the typical
IPS-LCD device with a wide viewing angle, since the metallic black matrix of the
upper substrate affects the voltage between the common and pixel electrodes, the
black matrix is made of resin and cannot be formed with a bent portion because
of the limits of the processing technology. Therefore, the typical IPS-LCD device
has a limit for effective realization and a low aperture ratio.
