A display apparatus includes a first substrate and a second substrate. The first substrate includes a switching element and a pixel electrode electrically connected to the switching element. A display panel driver applies a driving signal to the display panel. The display panel driver includes a printed circuit board including a first bonding pad and a flexible substrate electrically connecting the printed circuit board with the display panel. The flexible substrate includes a second bonding pad. The second bonding pad is electrically connected to the first bonding pad of the printed circuit board. The first bonding pad overlaps the second bonding pad. At least a portion of the first bonding pad and at least a portion of the second bonding pad extend in a direction which is at an acute angle with respect to a first direction parallel with a relatively longer side of the display panel.