Disclosed are a liquid crystal display device and a method for
manufacturing the same, in which wirings connected between pads and an
integrated circuit is protected from being corroded. A pixel array is
formed on a display region of a substrate. A plurality of pads are formed
on a non-display region of the substrate. An integrated circuit is formed
on the non-display region of the substrate and connected to the pads to
generate a signal for operating the pixel array. Conductive barrier layers
separated from each of the pads are formed on peripheral portions of the
pads connected to the integrated circuit. The conductive barrier layers
have electric potential equivalent to that of each of the pads in
accordance with internal connections of the integrated circuit. When bumps
of the integrated circuit and the pads are attached to each other, the
conductive barrier layers prevent the pads and the wirings connected to
the pads from being corroded.
