A display panel, a mask plate, a method for manufacturing the display panel, and a display device are provided. The display panel includes a display area and a peripheral area surrounding the display area, and the display panel further includes: at least two integrated chips located in the peripheral area of the display area and arranged along a boundary direction of the display area; at least one flow rate regulating structure is respectively located between two adjacent integrated chips and located on a side of the integrated chips remote from the display area, and the flow rate regulating structure is configured to adjust a flow rate of process liquid.