Display panel and display device

The utility model relates to the technical field of display, in particular to a display panel and a display device, which are used for preventing the display panel from changing the propagation direction of external light rays incident to a light-transmitting display area, so that the influence on the functions of optical elements in the display device can be avoided. The display panel is provided with a display area; the display area comprises a light-transmitting display area and a conventional display area; the light-transmitting display area is close to the first edge of the display area; the display panel comprises a display substrate which comprises a back plate and a plurality of light emitting devices located on the back plate; the plurality of light-emitting devices are located in the display area; the flat layer is positioned on one side, far away from the back plate, of the plurality of light-emitting devices; the flat layer comprises a first sub-part located in the light-transmitting display area;