A structure of connecting a panel driver to a side of a display panel and an electrostatic discharge (ESD) structure are disclosed. The display device comprises an active area where an image is displayed and a pad area where a plurality of pads are arranged, and a first substrate and a second substrate are bonded to face each other. A signal pad is arranged on the first substrate, and a connection electrode is arranged at one side of the signal pad. A flexible circuit film connected with the connection electrode is arranged. In this case, the signal pad includes a plurality of lines arranged by interposing an insulating film therebetween, wherein the plurality of lines are electrically connected with each other.