Display module and display device

1. A display module, comprising:

a cover plate;

a display screen, disposed on a side of the cover plate; and

a backlight module, disposed on a side of the display screen away from the cover plate;

wherein:

the display screen includes a display region, a first non-display region, and at least one first hollowed-out part;

the at least one first hollowed-out part penetrates through the display screen along a thickness direction of the display screen;

the first non-display region at least partially surrounds the at least one hollowed-out part;

the display region at least partially surrounds the first non-display region;

the backlight module includes at least one second hollowed-out part and a metal frame;

the at least one second hollowed-out part is disposed in a one-to-one correspondence with the at least one first hollowed-out part;

the at least one second hollowed-out part penetrates through the backlight module along a thickness direction of the backlight module;

the metal frame includes a main part corresponding to the display region and a first bending part connected to the main part;

the first bending part is disposed on inner sidewalls of the at least one second hollowed-out part, and is opaque;

the first bending part intersects a plane for the main part; and

one end of the first bending part away from the main part extends inside the at least one first hollowed-out part.

2. The display module according to claim 1 , wherein:

at a position in the backlight module corresponding to the first non-display region, a adhesive frame is absent between the plane for the main part and a plane for the cover plate.

3. The display module according to claim 1 , wherein:

a distance D1 between the one end of the first bending part away from the main part and the cover plate is 0<D1≤1 mm.

4. The display module according to claim 3 , wherein the distance D1 between the one end of the first bending part away from the main part and the cover plate is 0<D1≤0.1 mm.

5. The display module according to claim 1 , wherein the backlight module further includes a first light-blocking object between the one end of the first bending part away from the main part and the cover plate.

6. The display module according to claim 5 , wherein:

the display screen includes a display panel and a polarizer;

the polarizer is disposed at one side of the display panels adjacent to the cover plate;

the polarizer is fixed to the cover plate by an optical glue; and

the first light-blocking object further covers at least one side of the polarizer facing toward the at least one first hollowed-out part and at least one side of the optical glue facing toward the at least one first hollowed-out part.

7. The display module according to claim 5 , wherein:

the first light-blocking object is made of a first light-blocking glue.

8. The display module according to claim 7 , wherein:

the first light-blocking glue and the one end of the first bending part away from the main part are fixed under an interference fit.

9. The display module according to claim 5 , wherein the first light-blocking object is made of a light-blocking foam.

10. The display module according to claim 1 , wherein a second light-blocking object is disposed at a position in one side of the cover plate facing toward the display screen and corresponding to the first non-display region.

11. The display module according to claim 10 , wherein the second light-blocking object is an ink layer coated on the one side of the cover plate facing toward the display screen.

12. The display module according to claim 1 , wherein:

the backlight module further includes a second light-blocking glue; and

the first bending part is fixed to the cover plate by the second light-blocking glue.

13. The display module according to claim 12 , wherein the second light-blocking glue is at least disposed at a side of the first bending part facing toward the at least one second hollowed-out part and at the one side of the cover plate facing toward the display screen.

14. The display module according to claim 1 , wherein:

the at least one first hollowed-out part is a through hole structure;

the first non-display region surrounds the through hole structure; and

the display region surrounds the first non-display region.

15. The display module according to claim 1 , wherein:

the at least one first hollowed-out part is a notch structure;

the first non-display region partially surrounds the notch structure; and

the display region partially surrounds the first non-display region.

16. The display module according to claim 1 , wherein the main part and the first bending part are formed in one single piece or are mechanically connected to each other.

17. The display module according to claim 1 , wherein the first bending part is made of a metal.

18. The display module according to claim 1 , wherein:

the first bending part includes a base and a light-blocking material layer at least coated on a side of the base away from the at least one second hollowed-out part.

19. A display device, comprising the display module including a cover plate, a display screen disposed on a side of the cover plate and a backlight module disposed on a side of the display screen away from the cover plate;

wherein:

the display screen includes a display region, a first non-display region, and at least one first hollowed-out part;

the at least one first hollowed-out part penetrates through the display screen along a thickness direction of the display screen;

the first non-display region at least partially surrounds the at least one hollowed-out part;

the display region at least partially surrounds the first non-display region;

the backlight module includes at least one second hollowed-out part and a metal frame;

the at least one second hollowed-out part is disposed in a one-to-one correspondence with the at least one first hollowed-out part;

the at least one second hollowed-out part penetrates through the backlight module along a thickness direction of the backlight module;

the metal frame includes a main part corresponding to the display region and a first bending part connected to the main part;

the first bending part is disposed on inner sidewalls of the at least one second hollowed-out part, and is opaque;

the first bending part intersects a plane for the main part; and

one end of the first bending part away from the main part extends inside the at least one first hollowed-out part.