DISPLAY PANEL AND PREPARATION METHOD THEREFOR , AND DISPLAY DEVICE

A display panel, comprising: a substrate (10), a display structure layer, a touch-control structure layer (50), a plurality of contact pads (71, 72), and a first inorganic insulating layer (701), wherein the display structure layer is located on the substrate (10) in a display area (AA) and comprises a plurality of display-area metal layers; the touch-control structure layer (50) is located on the side of the display structure layer away from the substrate (10); the plurality of contact pads (71, 72) are located in a first border area (B1), and at least one of the contact pads (71, 72) comprises at least one contact-pad metal layer; the first inorganic insulating layer (701) exposes at least part of the surface, which faces away from the substrate (10), of the contact-pad metal layer of the plurality of contact pads (71, 72); and the contact-pad metal layer, which is exposed by the first inorganic insulating layer (701), of the at least one of the contact pads (71, 72) and one of the plurality of display-area