Display panel and display device

1. A display panel, comprising:

a display assembly, wherein the display assembly comprises a base substrate, a plurality of pixel units disposed on a first side of the base substrate and a first scanning line extending along a first direction, wherein each of the plurality of pixel units comprises a pixel driving unit and a light-emitting unit disposed on one side of the pixel driving unit facing away from the base substrate, wherein the light-emitting unit comprises a metal anode; and

a fingerprint recognition assembly disposed on a second side of the base substrate, wherein the second side is one side of the base substrate facing away from the plurality of pixel units and the second side is opposite to the first side, the fingerprint recognition assembly comprises at least one fingerprint recognition unit, and the at least one fingerprint recognition unit is configured to perform fingerprint recognition according to light reflected by a touch object to the fingerprint recognition unit;

wherein the pixel driving unit comprises a light-emitting reset transistor, the light-emitting reset transistor is configured to provide an initial voltage for the light-emitting unit before a display stage, wherein the light-emitting reset transistor comprises a gate electrode electrically connected to the first scanning line, a drain electrode electrically connected to a reference voltage, and a source electrode electrically connected to the metal anode, wherein a vertical projection of the first scanning line on the base substrate and a vertical projection of the metal anode on the base substrate have an overlapping area; and

the display panel further comprises a shield electrode disposed between a film layer in which the first scanning line is located and a film layer in which the drain electrode is located, wherein the shield electrode is connected to one fixed potential, the shield electrode is insulated from the drain electrode, and a vertical projection of the shield electrode on the base substrate is overlapped with the overlapping area.

2. The display panel according to claim 1 , wherein the overlapping area is completely covered by the vertical projection of the shield electrode on the base substrate.

3. The display panel according to claim 1 , further comprising a reference voltage line extending along the first direction, the reference voltage line is configured to provide the reference voltage, wherein the shield electrode and the reference voltage line are located in a same layer.

4. The display panel according to claim 1 , further comprising a first power signal line extending along a second direction, wherein the shield electrode is electrically connected to the first power signal line, and the second direction is intersected with the first direction.

5. The display panel according to claim 4 , wherein the first power signal line and the drain electrode are disposed in a same layer.

6. The display panel according to claim 5 , wherein the vertical projection of the shield electrode on the base substrate is overlapped with a vertical projection of the first power signal line on the base substrate, and the shield electrode is electrically connected to the first power signal line via a via hole.

7. The display panel according to claim 1 , wherein part of the first scanning line is reused as the gate electrode.

8. The display panel according to claim 4 , wherein the display panel further comprises a storage capacitor, a second scanning line extending along the first direction and a light-emitting control signal line, and wherein the pixel driving unit further comprises a data signal writing transistor, a driving transistor, a memory cell reset transistor and a light-emitting control transistor; wherein

the first scanning line is electrically connected to a gate electrode of the memory cell reset transistor, the second scanning line is electrically connected to a gate electrode of the data signal writing transistor, the light-emitting control signal line is electrically connected to a gate electrode of the light-emitting control transistor, a first plate of the storage capacitor is electrically connected to the first power signal line, and a second plate of the storage capacitor is electrically connected to a gate electrode of the driving transistor; and

the shield electrode and the first plate of the storage capacitor are disposed in a same layer.

9. The display panel according to claim 8 , wherein the first scanning line, the second scanning line and the light-emitting control signal line are disposed in a same layer and distributed in a cyclic manner.

10. The display panel according to claim 8 , wherein the vertical projection of the shield electrode on the base substrate is not overlapped with vertical projections of the second scanning line and the light-emitting control signal line on the base substrate.

11. The display panel according to claim 4 , further comprising a second power signal line extending along the first direction, wherein the first power signal line and the second power signal line are disposed in different layers and the first power signal line is electrically connected to the second power signal line via a via hole.

12. The display panel according to claim 1 , wherein the light-emitting unit provides a light source for the fingerprint recognition assembly, and the fingerprint recognition unit is configured to perform fingerprint recognition according to light emitted from the light-emitting unit and reflected by the touch object to the fingerprint recognition unit.

13. The display panel according to claim 1 , further comprising: a fingerprint recognition light source, wherein the fingerprint recognition light source is disposed on one side of the fingerprint recognition assembly facing away from the base substrate; wherein

light emitted from the fingerprint recognition light source is irradiated to the touch object via a gap between two adjacent fingerprint recognition units of the at least one recognition unit, and the fingerprint recognition unit is configured to perform fingerprint recognition according to light emitted from the fingerprint recognition light source and reflected by the touch object to the fingerprint recognition unit.

14. The display panel according to claim 13 , wherein the fingerprint recognition light source is a collimated light source.

15. A display device, comprising a display panel, wherein the display panel comprises:

a display assembly, wherein the display assembly comprises a base substrate, a plurality of pixel units disposed on a first side of the base substrate and a first scanning line extending along a first direction, wherein each of the plurality of pixel units comprises a pixel driving unit and a light-emitting unit disposed on one side of the pixel driving unit facing away from the base substrate, wherein the light-emitting unit comprises a metal anode; and

a fingerprint recognition assembly disposed on a second side of the base substrate, wherein the second side is one side of the base substrate facing away from the plurality of pixel units and the second side is opposite to the first side, the fingerprint recognition assembly comprises at least one fingerprint recognition unit, and the at least one fingerprint recognition unit is configured to perform fingerprint recognition according to light reflected by a touch object to the fingerprint recognition unit;

wherein the pixel driving unit comprises a light-emitting reset transistor, the light-emitting reset transistor is configured to provide an initial voltage for the light-emitting unit before a display stage, wherein the light-emitting reset transistor comprises a gate electrode electrically connected to the first scanning line, a drain electrode electrically connected to a reference voltage, and a source electrode electrically connected to the metal anode, wherein a vertical projection of the first scanning line on the base substrate and a vertical projection of the metal anode on the base substrate have an overlapping area; and

the display panel further comprises a shield electrode disposed between a film layer in which the first scanning line is located and a film layer in which the drain electrode is located, wherein the shield electrode is connected to one fixed potential, the shield electrode is insulated from the drain electrode, and a vertical projection of the shield electrode on the base substrate is overlapped with the overlapping area.