Display panel and display device

A display device, comprising:

• a power supply assembly and a display panel;
• wherein
• the display panel includes:
• a base substrate, having a display region and a peripheral region surrounding the display region;
• a plurality of pixel units, disposed in the display region;
• an auxiliary connection structure, wherein the auxiliary connection structure and anode layers of the plurality of pixel units are disposed in a same layer in the peripheral region;
• a cathode layer, disposed on a side, away from the base substrate, of the auxiliary connection structure, wherein the cathode layer is connected to the auxiliary connection structure;
• and
• at least one power trace, configured to receive a first power signal, wherein the at least one power trace is connected to the auxiliary connection structure;
• wherein the at least one power trace at least comprises a first trace layer, wherein a first insulation layer is disposed between the first trace layer and the auxiliary connection structure, the first insulation layer having a first connection region, wherein the first trace layer and the auxiliary connection structure are connected to each other in the first connection region, and a ratio of an area of an orthographic projection of the first connection region on the base substrate to an area of an overlapping region between an orthographic projection of the at least one power trace on the base substrate and an orthographic projection of the auxiliary connection structure on the base substrate is greater than a ratio threshold;
• and
• the power supply assembly is configured to supply power to the display panel.