A display module includes a display panel, a window and an optical clear adhesive (OCA) film. The display panel has a first surface and a second surface opposite to the first surface. The window has a first surface facing the first surface of the display panel, and a second surface opposite to the first surface of the window. The OCA film attaches the display panel to the window. The OCA film includes a rear attaching portion attached to the second surface of the display panel. Thus, the rear attaching portion of the OCA film surrounds the second surface of the display panel so that a gap between the first glass substrate and the second glass substrate of the display panel is not be widened.