A driver chip includes a base body, input terminals, first output terminals and dummy terminals. The base body includes a face having first to fourth edge portions. The first and second edge portions are disposed in substantially parallel along a longitudinal side of the face, and the third and fourth edge portions are disposed in substantially parallel along a horizontal side of the face. The input terminals are formed on the first edge portion such that the input terminals are arranged along the longitudinal side. The first output terminals are formed on the second edge portion such that the first output terminals are arranged along the longitudinal side. The dummy terminals are formed such that the dummy terminals are disposed between the input terminals and the first output terminals. A warpage and defects of electrical connection between the driver chip and a display panel of the display apparatus are prevented.