Display panel and display device

The invention discloses a display panel and a display device, the display panel comprises a substrate, a pixel definition layer, an isolation structure and a light emitting unit, the pixel definition layer is arranged on one side of the substrate and comprises a pixel limiting part and a pixel opening formed in the pixel limiting part; the isolation structure is arranged on one side of the substrate and encloses to form an isolation opening, and the isolation opening is communicated with the pixel opening; the light-emitting unit is arranged in the pixel opening and comprises a light-emitting functional layer and a first electrode located on the side, away from the substrate, of the light-emitting functional layer, the distance from the side, away from the substrate, of the part, corresponding to the pixel opening, of the light-emitting functional layer to the substrate is larger than or equal to the distance from the side, away from the substrate, of the pixel limiting part to the substrate, and the first el