Backlight module and display device

1 . A display device, comprising:

a display panel; and

a backlight module, disposed on a side of the display panel facing away from a light-emitting side of the display panel, and comprising a through hole for receiving light, wherein the backlight module comprises:

a fixing member comprising a side portion, wherein at least part of the side portion is disposed in the through hole, and the side portion comprises an opening; and

a sealing member, at least part of the sealing member being connected between the display panel and the side portion, wherein the sealing member comprises a mounting groove, the mounting groove comprises a groove wall and a projection on the groove wall, and the projection is disposed in the opening;

wherein the side portion of the fixing member comprises a first extension part and a second extension part, the first extension part and the second extension part are disposed in the through hole, and a thickness of the first extension part is smaller than a thickness of the second extension part; and

wherein the first extension part is disposed proximate to the sealing member and is clamped with the sealing member, and the first extension part comprises the opening of the side portion.

2 . A backlight module, disposed on a side of a display panel facing away from a light-emitting side of the display panel, and comprising a through hole for receiving light, wherein the backlight module comprises:

a fixing member comprising a side portion, wherein at least part of the side portion is disposed in the through hole, and the side portion comprises an opening; and

a sealing member, at least part of the sealing member being connected between the display panel and the side portion, wherein the sealing member comprises a mounting groove, the mounting groove comprises a groove wall and a projection on the groove wall, and the projection is disposed in the opening;

wherein the side portion of the fixing member comprises a first extension part and a second extension part, the first extension part and the second extension part are disposed in the through hole, and a thickness of the first extension part is smaller than a thickness of the second extension part; and

wherein the first extension part is disposed proximate to the sealing member and is clamped with the sealing member, and the first extension part comprises the opening of the side portion.

3 . The backlight module according to claim 2 , wherein the opening of the side portion is disposed on a side of the side portion facing away from the through hole.

4 . The backlight module according to claim 2 , wherein the opening of the side portion is disposed on a side of the side portion facing towards the through hole.

5 . The backlight module according to claim 2 , wherein the sealing member encloses an end of the side portion.

6 . The backlight module according to claim 2 , wherein a clamping groove is provided in the mounting groove; and

the clamping groove is disposed on an inner wall of a side of the mounting groove facing towards a central axis of the through hole; or the clamping groove is disposed on an inner wall of a side of the mounting groove facing away from the central axis of the through hole.

7 . The backlight module according to claim 6 , wherein a protrusion is formed on the first extension part at a position corresponding to the mounting groove; and

the clamping groove in the mounting groove cooperates with and is connected to the protrusion on the first extension part, and the clamping groove is fixed to the protrusion.

8 . The backlight module according to claim 2 , wherein the thickness of the first extension part is greater than a width of the mounting groove in the sealing member.

9 . The backlight module according to claim 2 , wherein the side portion further comprises a third extension part, an end of the third extension part is connected to the first extension part, and another end of the third extension part is connected to the second extension part; and

at least part of the first extension part is disposed in the sealing member, and a thickness of the third extension part is equal to the thickness of the first extension part.

10 . The backlight module according to claim 9 , wherein cross sections of sides of the first extension part, the second extension part, and the third extension part facing towards the through hole are defined as flat surfaces, and cross sections of sides of the first extension part, the second extension part, and the third extension part facing away from the through hole are defined as step surfaces.

11 . The backlight module according to claim 9 , further comprising an optical component, wherein the through hole is provided on the optical component;

wherein a gap between the second extension part and a corresponding film layer of the optical component is greater than a gap between the third extension part and the corresponding film layer of the optical component.

12 . The backlight module according to claim 2 , wherein an edge of a side of the sealing member is configured to protrude from an edge of the through hole.

13 . The backlight module according to claim 2 , wherein a surface of the sealing member facing towards the display panel is a flat surface, and the sealing member is formed by an elastic material.

14 . The backlight module according to claim 2 , further comprising an optical component, wherein the through hole is provided on the optical component.

15 . The backlight module according to claim 14 , wherein the fixing member further comprises a bottom portion disposed on a side of the optical component facing away from the display panel.

16 . The backlight module according to claim 14 , wherein the optical component comprises a light guide plate disposed on the fixing member.

17 . The backlight module according to claim 16 , wherein the optical component further comprises an upper diffusion film disposed above the light guide plate; and

an end of the sealing member is in contact with the upper diffusion film and is fixedly connected to the upper diffusion film.

18 . The backlight module according to claim 2 , wherein the sealing member further comprises an opening hole disposed to correspond to the through hole, and an aperture of the opening hole is smaller than an aperture of the through hole.

19 . The backlight module according to claim 18 , wherein the sealing member is a hollow cylindrical structure, and the mounting groove of the sealing member and the opening hole are concentric circle structures.