Display substrate, method for manufacturing same, and display device

1. A display substrate, comprising:

a base substrate;

a multilayered functional film layer on the base substrate, the multilayered functional film layer being provided with an opening penetrating through the multilayered functional film layer; and

a light-shielding film on a side wall of the opening; wherein

the display substrate further comprises light-emitting devices arranged around the opening, an edge of the light-shielding film covers a surface of the multilayered functional film layer away from the base substrate, the edge of the light-shielding film is arranged between the light-emitting devices and the opening, and a gap is formed between the edge of the light-shielding film and the light-emitting devices.

2. The display substrate according to claim 1 , wherein the opening comprises a plurality of sub-openings sequentially communicated in a lamination direction of the multilayered functional film layer, and central axes of the plurality of sub-openings coincide.

3. The display substrate according to claim 2 , wherein in the plurality of sub-openings, an area of an opening end surface of a first sub-opening is greater than an area of an opening end surface of a second sub-opening, the first sub-opening being adjacent to the second sub-opening, and the first sub-opening being on one side of the second sub-opening distal from the base substrate.

4. The display substrate according to claim 1 , wherein a material of the light-shielding film comprises a metal material.

5. The display substrate according to claim 4 , wherein the material of the light-shielding film comprises any one of silver, aluminum, and an alloy.

6. The display substrate according to claim 1 , further comprising a plurality of pixel driving circuits on the base substrate, and the light-emitting devices are electrically connected to the pixel driving circuits.

7. The display substrate according to claim 6 , wherein the multilayered functional film layer comprises a buffer layer, a first gate insulating layer, a second gate insulating layer, an interlayer dielectric layer, a planarization layer, and a pixel defining layer which are sequentially laminated on the base substrate.

8. The display substrate according to claim 1 , wherein the side wall of the opening is a stepped side wall.

9. The display substrate according to claim 1 , wherein the side wall of the opening is a flat side wall.

10. The display substrate according to claim 1 , wherein a material of the light-shielding film comprises a non-metal material.

11. The display substrate according to claim 10 , wherein the material of the light-shielding film comprises a black resin.

12. The display substrate according to claim 1 , wherein the opening comprises a plurality of sub-openings sequentially communicated in a lamination direction of the multilayered functional film layer, the plurality of sub-openings being in the multilayered functional film layer in one-to-one correspondence, in the plurality of sub-openings, an area of an opening end surface of a first sub-opening being greater than an area of an opening end surface of a second sub-opening, the first sub-opening being adjacent to the second sub-opening, the first sub-opening being on one side of the second sub-opening distal from the base substrate, and central axes of the plurality of sub-openings coinciding; and

a material of the light-shielding film comprises a metal material.

13. A display device, comprising: a sensor device and a display substrate; wherein the display substrate comprises a base substrate, a multilayer functional film layer being provided with an opening penetrating through the multilayered functional film layer, and a light shielding film on a side wall of the opening; the sensor device is on the other side opposite to one side of the base substrate which the multilayered functional film layer is on; and an orthogonal projection of the sensor device on the base substrate at least partially overlaps a region which the opening is on; wherein

the multilayered functional film layer is on the base substrate;

the display substrate further comprises light-emitting devices arranged around the opening, an edge of the light-shielding film covers a surface of the multilayered functional film layer away from the base substrate, the edge of the light-shielding film is arranged between the light-emitting devices and the opening, and a gap is formed between the edge of the light-shielding film and the light-emitting devices.

14. The display device according to claim 13 , wherein the sensor device comprises: a camera, an orthogonal projection of a lens of the camera on the base substrate overlaps the region which the opening is on.

15. The display device according to claim 14 , wherein the orthogonal projection of the lens of the camera on the base substrate coincides with the region which the opening is on.

16. The display substrate according to claim 1 , wherein a size of the opening gradually increases in a first direction, the first direction being a direction perpendicular to a surface of the base substrate provided with the multilayered functional film layer, and distal from the base substrate.

17. The display substrate according to claim 1 , wherein the opening comprises a plurality of sub-openings sequentially communicated in a lamination direction of the multilayered functional film layer, the plurality of sub-openings being in the multilayered functional film layer in one-to-one correspondence.

18. The display substrate according to claim 17 , wherein an angle between a side wall of each of the plurality of sub-openings and the base substrate is a right angle, and a thickness of the light-shielding film on the side wall of the opening is the same.