Display panel, display panel mother board and display device

The embodiment of the invention provides a display panel, a display panel mother board and a display device, relates to the technical field of display, and is used for improving the display effect of the display panel. The display panel comprises a substrate, a plurality of pixel circuits and at least one test electrode group. The plurality of pixel circuits are arranged on the substrate and are arranged in the display area; the plurality of pixel circuits are arranged in multiple rows and multiple columns. The plurality of pixel circuits comprise at least one test pixel circuit arranged on the outermost periphery of the display area, and the test pixel circuit is configured to be electrically insulated from the light-emitting device; the test pixel circuit comprises a plurality of transistors, at least one test transistor is arranged in the plurality of transistors, and the test transistor is electrically insulated from other transistors. The display panel is used for displaying images. 本公开的实施例提供了一种显示面板及显示面板