Apparatus for manufacturing display device and method of manufacturing display device using the same

A method of manufacturing a display device, the method comprising:

• arranging a display panel comprising a main mark on a first lower jig parallel to a plane defined by a first direction and a second direction crossing the first direction, and arranging a window on a bottom surface of an upper jig located above the first lower jig;
• aligning the main mark of the display panel and an alignment mark of a second lower jig located under the first lower jig by rotating the first lower jig about a rotation axis parallel to a third direction crossing a plane defined by the first direction and the second direction;
• molding the display panel by applying an external force to the display panel such that a top surface of the display panel has a curved surface that is concave downward;
• aligning the alignment mark and a deformation mark defined by the main mark of the molded display panel by rotating the first lower jig;
• acquiring position information about the window and position information about the alignment mark, and aligning the window and the display panel;
• and
• moving the window downward toward the display panel, and bonding the window and the display panel.