Display module, display device and manufacturing method

The invention discloses a display module, a display device and a manufacturing method. The display module comprises a substrate, a driving circuit layer and a cover plate, the driving circuit layer and the cover plate are sequentially arranged on the substrate in a stacked mode, and the display module comprises a display area and a non-display area; the non-display area comprises a conductive hole, a first conductive structure, a second conductive structure and a conductive output part, the conductive hole is filled with a conductive medium, and the second conductive structure is used for guiding charges, which are guided out by the first conductive structure and are far away from one side of the substrate, of the cover plate into the second conductive structure, and the charges are guided into the conductive output part through the second conductive structure so as to prevent the charges from entering the driving circuit layer. According to the display module, charges on the cover plate can be prevented from