Display module and electronic device

1 . A display module, comprising a photosensitive region and a non-photosensitive region located on at least one side of the photosensitive region;

wherein the display module further comprises:

a light-emitting element, which is located in the photosensitive region and the non-photosensitive region;

a light-shielding layer, which is located at the photosensitive region and the non-photosensitive region, and is located at a light-exiting side of the light-emitting element; and

a light-guiding layer, which is at least located at the photosensitive region and is located at a side of the light-emitting element facing away from the light-shielding layer; and

wherein the light-guiding layer comprises a plurality of light-guiding openings, the light-shielding layer comprises a plurality of first light-shielding openings, a plurality of second light-shielding openings and a plurality of third light-shielding openings, the plurality of first light-shielding openings are located in the photosensitive region, the plurality of second light-shielding openings are located in the non-photosensitive region, the plurality of first light-shielding openings at least partially overlap the plurality of light-guiding openings along a thickness direction of the display module, the plurality of second light-shielding openings do not overlap the light-emitting element, the plurality of third light-shielding openings at least partially overlap the light-emitting element, and a position of the second light-shielding openings is different from a position of the first light-shielding openings and a position of the third light-shielding openings.

2 . The display module of claim 1 , wherein

the plurality of light-guiding openings are arranged in an array;

the plurality of first light-shielding openings are arranged in an array, the plurality of second light-shielding openings are arranged in an array, and a distribution density of the plurality of first light-shielding openings is same as a distribution density of the plurality of second light-shielding openings.

3 . The display module of claim 1 , wherein a sum of opening areas of second light-shielding openings per unit area of the plurality of second light-shielding openings gradually decreases along a direction in which the photosensitive region is directed toward the non-photosensitive region.

4 . The display module of claim 3 , wherein a distribution density of the plurality of second light-shielding openings gradually decreases along the direction in which the photosensitive region is directed toward the non-photosensitive region.

5 . The display module of claim 3 , wherein an opening area of a second light-shielding opening of the plurality of second light-shielding openings gradually decreases along the direction in which the photosensitive region is directed toward the non-photosensitive region.

6 . The display module of claim 1 , wherein the plurality of light-guiding openings comprises first light-guiding openings and second light-guiding openings, a first light-guiding opening of the first light-guiding openings comprises a first opening center, and a second light-guiding opening of the second light-guiding opening comprises a second opening center;

the plurality of first light-shielding openings comprise first light-shielding sub-openings and second light-shielding sub-openings, a first light-shielding sub-opening of the first light-shielding sub-opening comprises a third opening center, a second light-shielding sub-opening of the second light-shielding sub-opening comprises a fourth opening center, the first light-shielding sub-opening at least partially overlaps a respective first light-guiding opening along the thickness direction of the display module, and the second light-shielding sub-opening at least partially overlaps a respective second light-guiding opening along the thickness direction of the display module; and

the first opening center and a respective third opening center have a first relative positional relationship, the second opening center and a respective fourth opening center have a second relative positional relationship, and the first relative positional relationship is different from the second relative positional relationship.

7 . The display module of claim 1 , wherein the plurality of light-guiding openings comprises third light-guiding openings and fourth light-guiding openings;

the plurality of first light-shielding openings comprise third light-shielding sub-openings and fourth light-shielding sub-openings, a third light-shielding sub-opening of the third light-shielding sub-openings at least partially overlaps a respective third light-guiding opening along the thickness direction of the display module, and a fourth light-shielding sub-opening of the fourth light-shielding sub-openings at least partially overlaps a respective fourth light-guiding opening along the thickness direction of the display module; and

an opening area of the third light-shielding sub-opening is different from that of the fourth light-shielding sub-opening.

8 . The display module of claim 1 , wherein the plurality of light-guiding openings are arranged in an array.

9 . The display module of claim 1 , further comprising: a reflection adjustment unit,

wherein a first light-shielding opening of the plurality of first light-shielding openings is filled with the reflection adjustment unit and a second light-shielding opening of the plurality of second light-shielding openings is filled with the reflection adjustment unit.

10 . The display module of claim 9 , further comprising a color-filtering layer located at the light-exiting side of the light-emitting element, wherein the reflection adjustment unit is also served as the color-filtering layer.

11 . The display module of claim 10 , wherein the color-filtering layer comprises a green color-filtering layer; and a first light-shielding opening of the plurality of first light-shielding openings is filled with the green color-filtering layer.

12 . The display module of claim 10 , wherein the color-filtering layer comprises a red color-filtering layer; and a second light-shielding opening of the plurality of second light-shielding openings is filled with the red color-filtering layer.

13 . The display module of claim 1 , further comprising: a display panel and a photosensitive layer, wherein

the photosensitive layer is disposed at a non-light-exiting side of the display panel, and the light-guiding layer is disposed between the photosensitive layer and the display panel; or

the photosensitive layer is disposed at a non-light-exiting side of the display panel, and the light-guiding layer is disposed in the display panel; or

the photosensitive layer and the light-guiding layer are both disposed in the display panel.

14 . The display module of claim 13 , wherein in a case that the light-guiding layer is disposed in the display panel;

the display panel comprises a substrate and a first metal layer, a second metal layer, a capacitance plate layer, a third metal layer and a fourth metal layer which are sequentially located at a same side of the substrate; and

the first metal layer, the second metal layer, the capacitance plate layer, the third metal layer, or the fourth metal layer is also served as the light-guiding layer.

15 . The display module of claim 1 , wherein a first light-shielding opening of the plurality of first light-shielding openings covers a respective light-guiding opening the plurality of light-guiding openings along the thickness direction of the display module.

16 . An electronic device, comprising a display module, wherein the display module comprises:

a photosensitive region and a non-photosensitive region located on at least one side of the photosensitive region;

wherein the display module further comprises:

a light-emitting element, which is located in the photosensitive region and the non-photosensitive region;

a light-shielding layer, which is located at the photosensitive region and the non-photosensitive region, and is located at a light-exiting side of the light-emitting element; and

a light-guiding layer, which is at least located at the photosensitive region and is located at a side of the light-emitting element facing away from the light-shielding layer; and

wherein the light-guiding layer comprises a plurality of light-guiding openings, the light-shielding layer comprises a plurality of first light-shielding openings, a plurality of second light-shielding openings and a plurality of third light-shielding openings, the plurality of first light-shielding openings are located in the photosensitive region, the plurality of second light-shielding openings are located in the non-photosensitive region, the plurality of first light-shielding openings at least partially overlap the plurality of light-guiding openings along a thickness direction of the display module, the plurality of second light-shielding openings do not overlap the light-emitting element, the plurality of third light-shielding openings at least partially overlap the light-emitting element, and a position of the second light-shielding openings is different from a position of the first light-shielding openings and a position of the third light-shielding openings.

17 . The electronic device of claim 16 , wherein

the plurality of light-guiding openings are arranged in an array;

the plurality of first light-shielding openings are arranged in an array, the plurality of second light-shielding openings are arranged in an array, and a distribution density of the plurality of first light-shielding openings is same as a distribution density of the plurality of second light-shielding openings.

18 . The electronic device of claim 16 , wherein a sum of opening areas of second light-shielding openings per unit area of the plurality of second light-shielding openings gradually decreases along a direction in which the photosensitive region is directed toward the non-photosensitive region.

19 . The electronic device of claim 18 , wherein a distribution density of the plurality of second light-shielding openings gradually decreases along the direction in which the photosensitive region is directed toward the non-photosensitive region.

20 . The electronic device of claim 18 , wherein an opening area of a second light-shielding opening of the plurality of second light-shielding openings gradually decreases along the direction in which the photosensitive region is directed toward the non-photosensitive region.