Display substrate, manufacturing method thereof and display device

The invention provides a display substrate, a manufacturing method thereof and a display device, and belongs to the technical field of display. The display substrate comprises a display area and a binding area located on the periphery of the display area, the display substrate comprises a substrate body and a plurality of signal wires located on the substrate body, and the signal wires extend from the display area to the binding area to be bound with corresponding COF (chip on film); the plurality of concave-convex structures are arranged in the binding area, the concave-convex structures are located on one side, facing the substrate, of the signal wires, and an overlapping area exists between the orthographic projection of at least part of the signal wires on the substrate and the orthographic projection of the concave-convex structures on the substrate. The narrow frame of the display device can be realized. 本发明提供了一种显示基板及其制作方法、显示装置，属于显示技术领域。其中，所述显示基板包括显示区域和位于所述显示区域周边的绑定区域，所述显示基板包括：衬底基板和位于所述衬底基板上的多个信号走线，所述多个