Abstract: The present application discloses embodiments of a display panel, a preparation method thereof, a detection method thereof, and a display device for improving an accuracy of detecting electrical properties of transistors. In one embodiment, a display panel may include a display area including a plurality of pixels and a non-display area surrounding the display area, wherein each of the plurality of pixels may include a display pixel circuit, and the non-display area may include one or more test pixel circuits, each of the one or more test pixel circuits having an equivalent circuit structure to the display pixel circuit, where the one or more test pixel circuits may include a plurality of transistors, and electrodes of at least one of the plurality of transistors may be respectively conductively coupled to different test pads.

Abstract: The present application discloses embodiments of a display panel, a preparation method thereof, a detection method thereof, and a display device for improving an accuracy of detecting electrical properties of transistors. In one embodiment, a display panel may include a display area including a plurality of pixels and a non-display area surrounding the display area, wherein each of the plurality of pixels may include a display pixel circuit, and the non-display area may include one or more test pixel circuits, each of the one or more test pixel circuits having an equivalent circuit structure to the display pixel circuit, where the one or more test pixel circuits may include a plurality of transistors, and electrodes of at least one of the plurality of transistors may be respectively conductively coupled to different test pads.

Abstract: 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.

Abstract: 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.