Display panel and display device

The embodiment of the invention provides a display panel and a display device. The display panel comprises a non-display area, and the non-display area comprises a substrate, a first insulating layer arranged at one side of the substrate and a second insulating layer arranged at the side, away from the substrate, of the first insulating layer. The second insulating layer covers part of the first insulating layer, the part, not covered by the second insulating layer, of the first insulating layer is provided with a plurality of metal blocks arranged side by side, and the area between every two adjacent metal blocks is a groove area. The width of the part, adjacent to the second insulating layer, of the groove area is larger than that of the other part of the groove area, and/or the second insulating layer comprises a step part adjacent to the groove area. The distance between the surface, away from the substrate, of the step part and the surface, away from the substrate, of the first insulating layer is smalle