Display module, manufacturing method of display module and display device

The invention provides a display module, a manufacturing method of the display module and a display device.The display module comprises a protective layer, a stress buffer layer, a display panel and a first shading layer, the stress buffer layer is additionally arranged between the protective layer and the display panel, the stress generated in the curved surface attaching process can be absorbed through the stress buffer layer, and the display effect is improved. The condition that the stress of the display panel is not uniform in the curved surface attaching process is improved, on the basis, the first shading layer is arranged in the stress buffer layer or between the stress buffer layer and the display panel, so that the stress buffer layer can be entirely attached to the inner surface of the protective layer, and the display effect is improved. The section difference between the part, corresponding to the plane part, of the buffer layer and the part, corresponding to the curved surface part, of the buffe