CN-224232080-U - Backlight module and display device

Abstract

The application discloses a backlight module and a display device, wherein the backlight module comprises a middle frame, a backlight source, a diffusion plate and a transparent support piece, wherein an accommodating cavity is formed in the middle frame, the backlight source is arranged in the accommodating cavity, the diffusion plate is arranged in the accommodating cavity and is positioned at the light emitting side of the backlight source, the transparent support piece is arranged in the accommodating cavity and is connected with the middle frame, the transparent support piece is positioned between the backlight source and the diffusion plate, and the edge of the diffusion plate is lapped at one side, far away from the backlight source, of the transparent support piece. The application can improve the display effect.

Inventors

• WANG MIN
• CHEN LI
• ZHOU CHUNHAI

Assignees

• 广州华星光电技术有限公司

Dates

Publication Date

20260512

Application Date

20250523

Claims (14)

1. 1. A backlight module, comprising: the middle frame is internally provided with an accommodating cavity; The backlight source is arranged in the accommodating cavity; A diffusion plate disposed in the accommodation cavity and located at the light emitting side of the backlight source, and The transparent support piece is arranged in the accommodating cavity and connected with the middle frame, and the transparent support piece is positioned between the backlight source and the diffusion plate; The edge of the diffusion plate is lapped on one side of the transparent support piece, which is far away from the backlight source.
2. 2. The backlight module according to claim 1, wherein the transparent support is detachably connected to the middle frame.
3. 3. The backlight module according to claim 1, wherein one side of the transparent support member adjacent to the middle frame is provided with one of a buckle and a clamping groove, and the other side of the middle frame adjacent to the transparent support member is provided with the other of the buckle and the clamping groove, and the transparent support member and the middle frame are connected through the buckle and the clamping groove.
4. 4. A backlight module according to claim 3, wherein the transparent support member is provided with the buckle on a side thereof adjacent to the middle frame; the clamping groove is formed in one side, close to the transparent support piece, of the middle frame, and penetrates through the middle frame along the direction away from the accommodating cavity; wherein at least part of the buckle passes through the clamping groove.
5. 5. The backlight module of claim 4, wherein the clamping groove penetrates through the middle frame, the clamping groove comprises a first sinking groove and a second sinking groove which are communicated, and the second sinking groove is positioned at one side of the first sinking groove far away from the accommodating cavity; And one part of the buckle is arranged in the first sinking groove, and the other part of the buckle is arranged in the second sinking groove and is abutted to the inner wall of the second sinking groove, which is close to the accommodating cavity.
6. 6. The backlight module according to claim 1, wherein an area of a side of the transparent support member adjacent to the diffusion plate is larger than an area of a side of the transparent support member remote from the diffusion plate.
7. 7. The backlight module according to claim 6, wherein a surface of the transparent support away from the middle frame is a light incident surface, and the light incident surface is connected with one side of the transparent support close to the diffusion plate and one side of the transparent support away from the diffusion plate; The included angle between the light incident surface and the thickness direction of the backlight module is larger than 0, the distance from one side of the light incident surface far away from the backlight source to the middle frame is a first distance, the distance from one side of the light incident surface close to the backlight source to the middle frame is a second distance, and the first distance is larger than the second distance.
8. 8. The backlight module according to claim 1, wherein the backlight module comprises a plurality of the transparent supporting members, and the transparent supporting members are arranged at intervals along a direction parallel to a plane in which the backlight source is located; The edge of the diffusion plate is lapped on one side of the transparent supporting pieces, which is far away from the backlight source.
9. 9. The backlight module according to any one of claims 1 to 8, wherein the middle frame comprises: The first side plate extends along the thickness direction of the backlight module, and the transparent support piece is connected to the first side plate; a first support plate located at the periphery of the backlight source, and The second support plate is connected with the first side plate and the first support plate, the second support plate, the first support plate and the first side plate enclose into the accommodating cavity, and one side of the second support plate, which is close to the accommodating cavity, is abutted to the transparent support piece.
10. 10. The backlight module according to claim 9, wherein a side of the second support plate, which is close to the accommodating cavity, is provided with a limiting groove, and a side of the transparent support member, which is close to the second support plate, extends into the limiting groove and abuts against an inner wall of the limiting groove.
11. 11. The backlight module according to claim 10, wherein the first support plate extends in a thickness direction of the backlight module; The second support plate extends along a first direction, and an included angle between the first direction and the thickness direction of the backlight module is in a range of 5-85 degrees.
12. 12. The backlight module according to claim 11, wherein a side of the transparent support member adjacent to the second support plate extends in the first direction; the bottom wall of the limit groove extends along the first direction; and one side, close to the second supporting plate, of the transparent supporting piece is abutted against the bottom wall of the limiting groove.
13. 13. The backlight module of claim 9, wherein the backlight module further comprises a back plate; The backboard comprises a bottom board and a second side board, and the second side board is arranged around the edge of the bottom board; wherein the first side plate is positioned at one side of the second side plate away from the bottom plate; the bottom plate is connected to one side, far away from the second support plate, of the first support plate, and the backlight source is arranged on the bottom plate.
14. 14. A display device, comprising: The backlight module according to any one of claims 1 to 13, and The display panel is arranged on the light emitting side of the backlight module.

Description

Backlight module and display device Technical Field The application relates to the technical field of display, in particular to a backlight module and a display device. Background In the related art, in order to improve the fixing effect of the backlight module, the diffusion plate in the backlight module needs to be supported by using the edge structure of the middle frame. However, the edge structure of the middle frame can shield the light emitted by the backlight source to the edge pixels of the display panel while supporting the diffusion plate, so that the light emitted by the backlight source cannot reach the edge pixels of the display panel, the optical phenomenon of peripheral shadow appears at the edge of the display panel, and the display effect is reduced. Therefore, a new solution is needed to solve the above-mentioned problems. Disclosure of utility model The application aims to provide a backlight module and a display device, which can improve the display effect. In order to solve the problems, the technical scheme of the application is as follows: in a first aspect, the present application provides a backlight module, including: the middle frame is internally provided with an accommodating cavity; The backlight source is arranged in the accommodating cavity; A diffusion plate disposed in the accommodation cavity and located at the light emitting side of the backlight source, and The transparent support piece is arranged in the accommodating cavity and connected with the middle frame, and the transparent support piece is positioned between the backlight source and the diffusion plate; The edge of the diffusion plate is lapped on one side of the transparent support piece, which is far away from the backlight source. In an embodiment of the application, the transparent support is detachably connected with the middle frame. In an embodiment of the present application, one side of the transparent support member, which is close to the middle frame, is provided with one of a buckle and a clamping groove, and the other side of the middle frame, which is close to the transparent support member, is provided with the other of the buckle and the clamping groove, and the transparent support member and the middle frame are connected through the buckle and the clamping groove. In an embodiment of the present application, the transparent support member is provided with the buckle at a side close to the middle frame; the clamping groove is formed in one side, close to the transparent support piece, of the middle frame, and penetrates through the middle frame along the direction away from the accommodating cavity; wherein at least part of the buckle passes through the clamping groove. In an embodiment of the present application, the clamping groove penetrates through the middle frame, and the clamping groove includes a first sinking groove and a second sinking groove which are communicated, and the second sinking groove is located at one side of the first sinking groove away from the accommodating cavity; And one part of the buckle is arranged in the first sinking groove, and the other part of the buckle is arranged in the second sinking groove and is abutted to the inner wall of the second sinking groove, which is close to the accommodating cavity. In an embodiment of the present application, an area of a side of the transparent support close to the diffusion plate is larger than an area of a side of the transparent support far from the diffusion plate. In an embodiment of the application, a surface of the transparent support member, which is far away from the middle frame, is a light incident surface, and the light incident surface is connected with one side of the transparent support member, which is close to the diffusion plate, and one side of the transparent support member, which is far away from the diffusion plate; The included angle between the light incident surface and the thickness direction of the backlight module is larger than 0, the distance from one side of the light incident surface far away from the backlight source to the middle frame is a first distance, the distance from one side of the light incident surface close to the backlight source to the middle frame is a second distance, and the first distance is larger than the second distance. In an embodiment of the application, the backlight module includes a plurality of transparent supporting members, and the transparent supporting members are arranged at intervals along a direction parallel to a plane where the backlight source is located; The edge of the diffusion plate is lapped on one side of the transparent supporting pieces, which is far away from the backlight source. In an embodiment of the present application, the middle frame includes: The first side plate extends along the thickness direction of the backlight module, and the transparent support piece is connected to the first side plate; a first support plate located at the peri