The present disclosure proposes a display panel, a fabrication method, a driving method thereof, and a display device. The display panel comprises a display area comprising a plurality of OLEDs; a peripheral area located in the periphery of the display area and having a driving circuit configured to provide driving signals to the plurality of OLEDs; a packaging material disposed between the display area and the peripheral area; a first signal line passing through the packaging material to provide a first signal from the driving circuit to the plurality of OLEDs; a second signal line passing through the packaging material to provide a second signal from the driving circuit to the plurality of OLEDs; and a sacrificial line being configured adjacent to the first signal line and the second signal line, where the sacrificial line is connected to a voltage supply element.