Display assembly of electronic device and electronic device

1. A display assembly of an electronic device, the electronic device further comprising a camera module, the display assembly comprising:

a cover plate, a display panel, and a backlight module that are sequentially stacked together, wherein

the display panel has a display region and the display region defines a first mounting through hole;

the backlight module defines a second mounting through hole aligned with the first mounting through hole;

the second mounting through hole is configured to position the camera module;

the first mounting through hole serves as a channel through which external light passing through the cover plate enters the camera module;

the backlight module comprises a metal bottom cover and a plastic sleeve;

the metal bottom cover defines a first through hole, and an edge of the first through hole is connected with a first folded edge;

the plastic sleeve is connected with the first folded edge;

the plastic sleeve defines an open hole aligned with the first through hole; and

the open hole of the plastic sleeve is the second mounting through hole.

2. The display assembly of claim 1 , wherein

the display panel is a liquid crystal panel;

the first mounting through hole has openings respectively defined on both a color filter substrate and a thin film transistor (TFT) substrate of the liquid crystal panel; and

the display assembly further comprises a sealing barrel disposed between the opening defined on the color filter substrate and the opening defined on the TFT substrate, so as to enable liquid crystal to be sealed in a sealed cavity formed by the color filter substrate, the TFT substrate, and the sealing barrel, wherein an inner wall of the sealing barrel is a hole wall of the first mounting through hole.

3. The display assembly of claim 2 , wherein the sealing barrel is a first black matrix.

4. The display assembly of claim 2 , wherein wirings and a second black matrix are formed on the TFT substrate, wherein the second black matrix is used for covering the wirings.

5. The display assembly of claim 1 , wherein the backlight module comprises a metal bottom cover, and the second mounting through hole has an opening defined on the metal bottom cover, wherein a first folded edge is formed on the periphery of the opening defined on the metal bottom cover, wherein the first folded edge is a hole wall of the second mounting through hole.

6. The display assembly of claim 5 , wherein the metal bottom cover comprises a cover body, and a second folded edge is formed on the periphery of the cover body, wherein the backlight module further comprises an optical component, and the optical component is disposed between the cover body and the display panel, wherein the optical component defines a second through hole, the first folded edge is inserted in the second through hole, and the second folded edge is arranged around the periphery of the optical component.

7. The display assembly of claim 6 , wherein the optical component comprises a light guide plate, and the second through hole has an opening at an edge line of the light guide plate.

8. The display assembly of claim 6 , wherein the optical component comprises a light guide plate, the backlight module comprises a first light source and a second light source, and the first light source and the second light source are respectively arranged at two opposite sides of an opening of the second through hole defined on the light guide plate, so as to provide incident light to the light guide plate in opposite directions, wherein the second folded edge is arranged around the periphery of the first light source and the second light source.

9. The display assembly of claim 1 , wherein the first folded edge is embedded in a side wall of the plastic sleeve to form a fixed connection between the plastic sleeve and the first folded edge.

10. The display assembly of claim 1 , wherein an optical transparent adhesive layer is coated between the cover plate and the display panel.

11. The display assembly of claim 1 , wherein the second mounting through hole has a smaller aperture than the first mounting through hole.

12. A display assembly of an electronic device, the electronic device further comprising a camera module, the display assembly comprising:

a cover plate, a display panel, and a backlight module that are sequentially stacked together, wherein

the cover plate has a display region and the display region is configured to allow light from the display panel to pass through to present a picture;

the display panel defines a first mounting through hole, and a projection of the first mounting through hole on an axial direction of the first mounting through hole falls within the display region;

the backlight module defines a second mounting through hole aligned with the first mounting through hole, the second mounting through hole is configured to receive and position the camera module, and the first mounting through hole is configured to allow external light passing through the display region to enter the camera module;

the backlight module comprises a metal bottom cover and a plastic sleeve, the metal bottom cover defines a first through hole, and an edge of the first through hole is connected with a first folded edge; and

the plastic sleeve is connected with the first folded edge, the plastic sleeve defines an open hole aligned with the first through hole, and the open hole of the plastic sleeve is the second mounting through hole.

13. An electronic device, comprising:

a camera module; and

a display assembly, wherein

the display assembly comprises a cover plate, a display panel, and a backlight module that are sequentially stacked together, wherein the display panel has a display region and the display region defines a first mounting through hole, and the backlight module defines a second mounting through hole aligned with the first mounting through hole;

the camera module is inserted in the second mounting through hole, enabling external light to pass through the cover plate and the first mounting through hole to enter the camera module, wherein the second mounting through hole is configured to position the camera module;

the camera module comprises a lens base and a lens mounted on the lens base, the lens is inserted in the second mounting through hole such that the second mounting through hole positions the lens, and the lens base is clamped at an edge of the second mounting through hole; and

the backlight module comprises a plastic sleeve, the plastic sleeve has a first guide inclined surface, a second guide inclined surface is formed at a position of the lens base connected to the lens; and the first guide inclined surface is opposite to the second guide inclined surface.

14. The electronic device of claim 13 , further comprising a housing, wherein the display assembly is disposed on the housing, and the housing and the display panel are respectively disposed on two opposite sides of the backlight module, wherein the housing defines a third mounting through hole at a position corresponding to the second mounting through hole, wherein the lens base is inserted in the third mounting through hole and clamped at the edge of the second mounting through hole.

15. The electronic device of claim 14 , wherein a mounting platform protrudes from a surface of the housing, and the third mounting through hole penetrates through the mounting platform, wherein the lens base is provided with a flange at an end away from the lens, and the flange is clamped with the mounting platform.

16. The electronic device of claim 14 , wherein a sealing layer is provided between the housing and the backlight module.

17. The electronic device of claim 16 , wherein the sealing layer defines a fourth mounting through hole at a position corresponding to the second mounting through hole, wherein the fourth mounting through hole is configured to allow the lens to pass through, and the periphery of the fourth mounting through hole defined on the sealing layer is clamped between the lens base and the backlight module.