Display panel and display device

The invention relates to a display panel and a display device, and relates to the technical field of display. The display panel comprises a driving backboard, a light-emitting device and a temperature control substrate, the temperature control substrate comprises a temperature control element, and the temperature control element is provided with a refrigeration end and a heat dissipation end which are distributed away from the driving backboard; a pixel circuit of the driving backboard comprises a driving transistor, a write-in circuit, a storage circuit and a temperature control circuit. A first electrode of the driving transistor receives a first power signal, a second electrode of the driving transistor is connected with a first electrode of the light-emitting device, and a second electrode of the light-emitting device receives a second power signal; the write-in circuit is connected with the gate of the driving transistor and is used for transmitting a data signal to the gate of the driving transistor in