Manufacturing apparatus for display device and method of using the same

A manufacturing method of a display device, comprising:

• loading, on a stage, a panel assembly including:
• a display panel which is drivable by a signal applied thereto to display an image, and
• a first printed circuit board and a second printed circuit board through which the signal is transmittable to the display panel, attached to the display panel, end portions of the first and second printed circuit boards disposed overlapping each other;
• providing a jet of air to the overlapping end portion of the second printed circuit board to raise the overlapping end portion of the second printed circuit board away from the end portion of the first printed circuit board and expose the end portion of the first printed circuit board;
• fixing the raised end portion of the second printed circuit board away from the exposed end portion of the first printed circuit board;
• pre-processing the exposed end portion of the first printed circuit board;
• and
• aligning a distal end of the pre-processed end portion of the first printed circuit board and a distal end of the end portion of the second printed circuit board.