Display panel and display device

1. A display panel, comprising:

a light-blocking layer and a light-emitting device layer disposed on the light-blocking layer, wherein the light-blocking layer comprises a plurality of imaging apertures;

a touch function layer disposed on one side of the light-emitting device layer facing away from the light-blocking layer, wherein the touch function layer comprises a plurality of first touch areas and a plurality of second touch areas, wherein the plurality of first touch areas do not overlap with imaging aperture identification areas, and one of the plurality of second touch areas overlaps with a respective one of the imaging aperture identification areas, or one of the imaging aperture identification areas is covered by a respective one of the plurality of second touch areas; wherein a reflectivity of each of the plurality of second touch areas is smaller than a reflectivity of each of the plurality of first touch areas, or wherein a transmittance of each of the plurality of second touch areas is greater than a transmittance of each of the plurality first touch areas, or wherein light transmission uniformity of each of the plurality of second touch areas is greater than light transmission uniformity of each of the plurality of first touch areas, or wherein each of the plurality of second touch areas comprises a hollowed-out area; and each of the imaging aperture identification areas is an identifiable area of one of the plurality of imaging apertures on a plane where the touch function layer is located; and

a fingerprint identification module disposed on one side of the light-blocking layer facing away from the light-emitting device layer, wherein the fingerprint identification module is configured to receive first reflected light reflected through the light-blocking layer by a touch body and perform fingerprint identification according to the first reflected light;

wherein

d

≥

2

⁢

P

2

⁢

u

×

h

,

wherein d denotes a distance between an edge of an orthographic projection of the second touch area on a plane where the light-blocking layer is located and the each of the plurality of imaging apertures, P denotes a distance between center points of any two adjacent imaging apertures among the plurality of imaging apertures, u denotes a vertical distance between a touch surface of the display panel and the light-blocking layer, and h denotes vertical distance between the touch function layer and the light-blocking layer;

wherein P=700 μm, u=1000 μm, and h=300 μm.

2. The display panel of claim 1 , wherein the touch function layer at least comprises a touch electrode layer, wherein the touch electrode layer comprises a first electrode pattern in the first touch area and a second electrode pattern in the second touch area, wherein the second electrode pattern overlaps with the imaging aperture identification areas, and a transmittance of the second electrode pattern is greater than a transmittance of the first electrode pattern.

3. The display panel of claim 2 , wherein the second electrode pattern comprises the hallowed-out area, wherein the hollowed-out area overlaps with the at least one of the imaging aperture identification areas.

4. The display panel of claim 3 , wherein the hollowed-out area has a serrated edge.

5. The display panel of claim 1 , wherein the touch function layer at least comprises a touch electrode layer, wherein the touch electrode layer comprises a first electrode pattern in the first touch area, and the touch electrode layer does not overlap with the second touch area.

6. The display panel of claim 1 , wherein the touch function layer comprises at least one touch electrode layer, wherein each of the at least one touch electrode layer comprises a plurality of electrode blocks, wherein each of the plurality of electrode blocks in the second touch area comprises a first hollowed-out area, and the first hollowed-out area overlaps with one of the imaging aperture identification areas.

7. The display panel of claim 6 , wherein the first hollowed out area has a serrated edge.

8. The display panel of claim 6 , wherein the each of the plurality of electrode blocks comprises a metal mesh, wherein the metal mesh comprises a plurality of metal lines cross-connected to each other, and wherein the first hollowed-out area is formed by disconnecting metal lines electrically connected to each other.

9. The display panel of claim 8 , wherein the each of the plurality of electrode blocks further comprises a virtual hollowed-out area, wherein the virtual hollowed-out area is formed by disconnecting metal lines located on a same straight line, and wherein the virtual hollowed-out area does not overlap with the imaging aperture identification areas.

10. The display panel of claim 9 , wherein virtual hollowed-out areas and first hollowed-out areas in the touch electrode layer are arranged in an array, the first hollowed-out areas in the touch electrode layer are uniformly arranged, and a number of the virtual hollowed-out areas is greater than or equal to twice a number of the first hollowed-out areas.

11. The display panel of claim 6 , wherein the touch function layer at least comprises the touch electrode layer and a bridge layer separated by an insulating layer from a film layer where the touch electrode layer is located, wherein the touch electrode layer comprises the plurality of electrode blocks, the bridge layer comprises a plurality of bridges, two adjacent electrode blocks among the plurality of electrode blocks are electrically connected by at least one of the plurality of bridges, and wherein the bridge layer is a transparent conductive layer; and

at least one of the plurality of bridges overlaps with the second touch area.

12. The display panel of claim 11 , wherein the each of the plurality of electrode blocks comprises a first material area and a second material area which are electrically connected, wherein the first material area is located in the first touch area, the second material area is located in the second touch area, the second material area overlaps with the imaging aperture identification areas, and the second material area reuses the bridge layer.

13. The display panel of claim 1 , wherein the touch function layer at least comprises a touch electrode layer; wherein

an area of the touch electrode layer on a unit area of the first touch area is larger than an area of the touch electrode layer on a unit area of the second touch area.

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

a light-blocking layer and a light-emitting device layer disposed on the light-blocking layer, wherein the light-blocking layer comprises a plurality of imaging apertures;

a touch function layer disposed on one side of the light-emitting device layer facing away from the light-blocking layer, wherein the touch function layer comprises a plurality of first touch areas and a plurality of second touch areas, wherein the plurality of first touch areas do not overlap with imaging aperture identification areas, and one of the plurality of second touch areas overlaps with a respective one of the imaging aperture identification areas, or one of the imaging aperture identification areas is covered by a respective one of the plurality of second touch areas; wherein a reflectivity of each of the plurality of second touch areas is smaller than a reflectivity of each of the plurality of first touch areas, or wherein a transmittance of each of the plurality of second touch areas is greater than a transmittance of each of the plurality of first touch areas, or wherein light transmission uniformity of each of the plurality of second touch areas is greater than light transmission uniformity of each of the plurality of first touch areas, or wherein each of the plurality of second touch areas comprises a hollowed-out area; and each of the imaging aperture identification areas is an identifiable area of one of the plurality of imaging apertures on a plane where the touch function layer is located; and

a fingerprint identification module disposed on one side of the light-blocking layer facing away from the light-emitting device layer, wherein the fingerprint identification module is configured to receive first reflected light reflected through the light-blocking layer by a touch body and perform fingerprint identification according to the first reflected light;

wherein

d

≥

2

⁢

P

2

⁢

u

×

h

,

wherein d denotes a distance between an edge of an orthographic projection of the second touch area on a plane where the light-blocking layer is located and the each of the plurality of imaging apertures, P denotes a distance between center points of any two adjacent imaging apertures among the plurality of imaging apertures, u denotes a vertical distance between a touch surface pf the display panel and the light-blocking layer, and h denotes a vertical distance between the touch function layer and the light-blocking layer;

wherein P=700 μm, u=1000 μm, and h=300 μm.

15. A display panel, comprising:

a light-blocking layer and a light-emitting device layer disposed on the light-blocking layer, wherein the light-blocking layer comprises a plurality of imaging apertures;

a touch function layer disposed on one side of the light-emitting device layer facing away from the light-blocking layer, wherein the touch function layer comprises a plurality of first touch areas and a plurality of second touch areas, wherein the plurality of first touch areas do not overlap with imaging aperture identification areas, and the plurality of second touch areas overlap with at least one of the imaging aperture identification areas;

wherein a reflectivity of each of the plurality of second touch areas is smaller than a reflectivity of each of the plurality of first touch areas, or wherein a transmittance of each of the plurality of second touch areas is greater than a transmittance of each of the plurality of first touch areas, or wherein light transmission uniformity of each of the plurality of second touch areas is greater than light transmission uniformity of each of the plurality of first touch areas, or wherein each of the plurality of second touch areas comprises a hollowed-out area; and each of the imaging aperture identification areas is an identifiable area of one of the plurality of imaging apertures on a plane where the touch function layer is located; and

a fingerprint identification module disposed on one side of the light-blocking layer facing away from the light-emitting device layer, wherein the fingerprint identification module is configured to receive first reflected light reflected through the light-blocking layer by a touch body and perform fingerprint identification according to the first reflected light;

wherein

d

≥

2

⁢

P

2

⁢

u

×

h

,

wherein d denotes a distance between an edge of an orthographic projection of the second touch area on a plane where the light-blocking, layer is located and the each of the plurality of imaging apertures, P denotes a distance between center points of any two adjacent imaging apertures among the plurality of imaging apertures, u denotes a vertical distance between a touch surface of the display panel and the light-blocking layer, and h denotes a vertical distance between the touch function layer and the light-blocking layer;

wherein P=700 μm, u=1000 μm, and h=300 μm.