Disassembling method of display module and remanufacturing method of disassembled display module

A remanufacturing method of a display module, comprising:

• providing the display module by attaching a display panel to a window by an adhesive layer;
• attaching an auxiliary sheet to the display panel or the window of the display module, by using an adhesive tape, the auxiliary sheet attached to the display module including an external force applying portion exposed outside an outer edge of the display module;
• cooling the display module having the auxiliary sheet attached thereto;
• after the cooling of the display module having the auxiliary sheet attached thereto, separating the display panel and the window from each other by applying force to the external force applying portion of the auxiliary sheet attached to the display panel or the window;
• and
• removing the adhesive layer from one of the display panel and the window to which the auxiliary sheet is not attached,
• wherein a remanufactured display module includes the display panel or the window to which the auxiliary sheet is attached.