CN218630448U - Display device - Google Patents

Abstract

The application provides a display device, relates to liquid crystal display technical field for solve display device among the correlation technique when receiving the impact, the technical problem that the diaphragm jumps out from the backplate easily. The display device includes: backplate, joint spare, diffuser plate and diaphragm. The back plate comprises a first limiting plate and a second limiting plate which are arranged at intervals; the clamping piece is connected with the wall surface of the first limiting plate facing the second limiting plate; the joint spare includes: the bulge part faces the second limiting plate; the diffusion plate is arranged between the clamping piece and the second limiting plate and is attached to the second limiting plate; the diaphragm is attached to the diffusion plate, the diaphragm is positioned on one side, close to the clamping piece, of the diffusion plate, a limiting hole is formed in a first position of the diaphragm, and the first position is a projection position of the boss on the diaphragm; the protruding part can extend into the limiting hole to clamp the diaphragm.

Description

Display device

Technical Field

The application relates to the technical field of liquid crystal display, in particular to a display device.

Background

With the increasing maturity of the optoelectronic technology and the semiconductor manufacturing technology, the flat panel display device is developed. Among them, the liquid crystal display has advantages of low voltage operation, no radiation scattering, light weight, and small volume, and has been widely applied to various electronic devices such as notebook computers, personal digital assistants, and mobile phones. Generally, a liquid crystal display includes a backlight module and a liquid crystal display panel, wherein the liquid crystal display panel is disposed on the backlight module. The backlight module comprises a light source, a light guide plate, an optical film and other components, and forms a backlight source for outputting display images of the liquid crystal display panel.

The frameless (full screen) display device gradually becomes an industry appearance trend, is used as a metal backboard and middle frame integrated scheme (namely, a separately arranged plastic middle frame is eliminated, and the functions of the plastic middle frame are integrated on the metal backboard), has the advantages of simple structure, high assembly efficiency, low cost and good appearance effect, is widely adopted by various manufacturers, and has the problem that the internal optical diaphragm is fixed to be a relatively troublesome structure because the structure is too simple.

In the related art, the diffusion plate and the membrane are usually adhered together by a double-sided adhesive tape and placed in the C-shaped groove of the back plate, so that the membrane is not limited in the C-shaped groove, and the membrane is easily separated from the C-shaped groove when the display device is impacted, thereby causing the problem of membrane jumping.

SUMMERY OF THE UTILITY MODEL

The application provides a display device for solve display device among the correlation technique when receiving the impact, the technical problem that the diaphragm jumps out from the backplate easily.

The application provides a display device including: backplate, joint spare, diffuser plate and diaphragm. The back plate comprises a first limiting plate and a second limiting plate which are arranged at intervals; the clamping piece is connected with the wall surface of the first limiting plate facing the second limiting plate; the joint spare includes: the bulge part faces the second limiting plate; the diffusion plate is arranged between the clamping piece and the second limiting plate and is attached to the second limiting plate; the diaphragm is attached to the diffusion plate, the diaphragm is positioned on one side, close to the clamping piece, of the diffusion plate, a limiting hole is formed in a first position of the diaphragm, and the first position is a projection position of the boss on the diaphragm; the protruding part can extend into the limiting hole to clamp the diaphragm.

The application provides a backplate includes first limiting plate and the second limiting plate that the interval set up, and joint spare is connected towards the wall of second limiting plate with first limiting plate, and this joint spare includes: the diffusion plate is arranged between the clamping piece and the second limiting plate and is attached to the second limiting plate; the diaphragm is attached to the diffusion plate, the diaphragm is positioned on one side, close to the clamping piece, of the diffusion plate, a limiting hole is formed in a first position of the diaphragm, and the first position is a projection position of the boss on the diaphragm; the protruding part can extend into the limiting hole to clamp the diaphragm. Thereby, this bellying with the diaphragm joint between first limiting plate and second limiting plate to when display device is receiving the impact, the bellying can block that the diaphragm jumps out from between first limiting plate and the second limiting plate. In addition, the clamping structure of the display device is simple and reliable, and the assembly requirement is low, so that the production efficiency of the display device is improved.

In some embodiments of the present application, the back plate further comprises: one end of the middle frame is fixedly connected with the first limiting plate, and the other end of the middle frame is fixedly connected with the second limiting plate; the boss portion includes: the diaphragm limiting device comprises a first guide inclined plane, wherein the first guide inclined plane is that the boss is far away from the wall surface of one side of the middle frame, and the first guide inclined plane is used for guiding the diaphragm into the middle frame, so that the boss extends into the limiting hole.

In some embodiments of the present application, the boss further comprises: an abutting surface and a connecting surface; the abutting surface, the connecting surface and the first guide inclined surface surround to form a triangle; the abutting surface faces the middle frame and can abut against the inner wall surface of the diaphragm at the limiting hole; the connecting surface faces the first limiting plate and is connected with the first limiting plate.

In some embodiments of the present application, the protrusion is a right triangular prism shape, the abutting surface, the connecting surface and the first guiding inclined surface are rectangles, and the abutting surface is perpendicular to the connecting surface.

In some embodiments of the present application, the middle frame, the first limiting plate, and the second limiting plate are an integrally molded structure.

In some embodiments of the present application, a projection of the protrusion portion in a first direction is staggered from the diffusion plate, and the first direction is a direction of arrangement from the first limiting plate to the second limiting plate.

In some embodiments of the present application, the clip further comprises: the connecting plate, the connecting plate includes relative first wall and second wall, first wall with first limiting plate connects, the second wall with connect the face and connect, the area of first wall is greater than the area of connecting the face.

In some embodiments of the present application, the connecting plate and the boss are of an integrally molded structure.

In some embodiments of the present application, the connection plate further comprises: and the second guide inclined plane is a wall surface of the connecting plate far away from one side of the middle frame and is used for guiding the diaphragm to the first guide inclined plane.

In some embodiments of the present application, the second wall surface of the connecting plate is further provided with a limiting portion, and the limiting portion faces the diaphragm and abuts against the wall surface of the side, close to the connecting plate, of the diaphragm.

Drawings

The accompanying drawings are included to provide a further understanding of the embodiments of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention and not to limit the embodiments of the invention.

Fig. 1 is a schematic structural diagram of a backlight module in the related art according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

fig. 3 is a schematic perspective view of a backlight module according to an embodiment of the present disclosure;

fig. 4 is a second schematic perspective view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a diaphragm provided in an embodiment of the present application;

fig. 6 is a schematic perspective view of a clamping member according to an embodiment of the present disclosure;

fig. 7 is a third schematic perspective view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 8 is a schematic plan view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 9 is a second schematic plan view illustrating a backlight module according to an embodiment of the present application;

fig. 10 is a third schematic plan view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 11 is a fourth schematic plan view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 12 is a fifth schematic plan view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 13 is a sixth schematic plan view illustrating a backlight module according to an embodiment of the present disclosure;

fig. 14 is a seventh schematic plan view illustrating a backlight module according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indicators (such as upper, lower, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it should be noted that the terms "connected" and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection unless otherwise explicitly stated or limited. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. In addition, when a pipeline is described, the terms "connected" and "connected" are used in this application to have a meaning of conducting. The specific meaning is to be understood in conjunction with the context.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

With the continuous development and maturity of LED backlight technology and the rapid expansion of the market, the design of the display device is more and more diversified.

Fig. 1 shows a schematic structural diagram of a backlight module in the related art, and in a design scheme of a frameless display device, as shown in fig. 1, the backlight module 001 includes: c bending backboard 02, membrane 03 and diffusion plate 04, wherein the diffusion plate 04 and the membrane 03 are placed into the C-shaped groove of the backboard 02 after being glued. Thus, when the display device is impacted, the membrane 03 is likely to jump out of the C-shaped groove of the back plate 02, which may affect the use of the display device.

The application provides a display device, when display device is receiving the impact, this diaphragm restriction is at backplate C inslot, can not jump out from backplate C shape inslot to guarantee display device normal operating. In addition, the display device is simple and reliable in structure and low in assembly requirement, and therefore production efficiency of the display device is improved.

Fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure, and as shown in fig. 2, a display device 1000 according to an embodiment of the present disclosure may include:

the backlight module 100 is used for providing backlight, and the backlight module 100 can uniformly emit light in the whole light emitting plane and is used for providing light with sufficient brightness and uniform distribution for the display panel 200, so that the display panel 200 can normally display images. The backlight module 100 is divided into a direct type backlight module and a side type backlight module according to the structure.

The display panel 200 is located on the light emitting side of the backlight module 100 and is used for displaying images. The display panel 200 has a plurality of pixel units arranged in an array, and each pixel unit can independently control the transmittance and color of light incident to the pixel unit from the backlight module 100, so that the light transmitted by all the pixel units forms a displayed image.

Fig. 3 shows a schematic perspective view of a backlight module provided in an embodiment of the present application, and as shown in fig. 3, the backlight module 100 may include: a back plate 10, a clip 20, a diffusion plate 30 and a diaphragm 40.

As shown in fig. 3, the back plate 10 may include: the first limiting plate 11 and the second limiting plate 12 are arranged at intervals, and the first limiting plate 11 and the second limiting plate 12 are arranged at intervals.

In a possible implementation, the first limiting plate 11 and the second limiting plate 12 may be arranged in parallel.

It can be understood that, when the first limiting plate 11 and the second limiting plate 12 are arranged in parallel, the first limiting plate 11 and the second limiting plate 12 need to be connected and fixed. Therefore, in one possible implementation, as shown in fig. 4, the back plate 10 may further include: one end of the middle frame 13 is fixedly connected with the first limiting plate 11, and the other end of the middle frame 13 is fixedly connected with the second limiting plate 12. Thus, the first stopper plate 11 and the second stopper plate 12 are fixedly connected by the center frame 13.

Alternatively, the middle frame 13, the first limiting plate 11 and the second limiting plate 12 may be an integrally formed structure. Therefore, the connection strength among the first limiting plate 11, the middle frame 13 and the second limiting plate 12 is high, and the first limiting plate, the middle frame 13 and the second limiting plate are not required to be additionally connected, so that the assembly process of the backboard 10 is reduced.

For example, the middle frame 13, the first limiting plate 11 and the second limiting plate 12 may be formed by injection molding. This center 13, first limiting plate 11 and second limiting plate 12 can also be formed through bending process bending, and this application does not do specific limit to its shaping mode.

As shown in fig. 4, the engaging member 20 is disposed between the first stopper plate 11 and the second stopper plate 12, and is connected to a wall surface of the first stopper plate 11 facing the second stopper plate 12. The clip 20 may include: and a boss 21, wherein the boss 21 faces the second limiting plate 12, and the boss 21 is used for clamping the diaphragm 40. The diffusion plate 30 is disposed between the engaging member 20 and the second limiting plate 12, and attached to the second limiting plate 12.

In a possible implementation manner, the clip 20 may be fixedly connected with the wall surface of the first limiting plate 11 facing the second limiting plate 12 in a non-detachable manner, for example, glued or the like. Thus, the connecting strength between the engaging member 20 and the first stopper plate 11 is high.

In another possible implementation manner, the clip member 20 may also be detachably and fixedly connected to a wall surface of the first limiting plate 11 facing the second limiting plate 12, for example, by a screw or the like. Therefore, when the clamping piece 20 is damaged, the clamping piece can be detached and replaced, and the maintenance or rework cost is reduced.

In addition, fig. 5 shows a schematic structural diagram of a diaphragm provided in this embodiment, the diaphragm 40 is attached to the diffusion plate 30, and the diaphragm 40 is located on one side of the diffusion plate 30 close to the fastening member 20, a first position of the diaphragm 40 is provided with a limiting hole 41 (also referred to as a hanging lug), the first position is a projection position of the protrusion 21 on a wall surface of the diaphragm 40, and the wall surface of the diaphragm 40 is a wall surface 411 of one side of the diaphragm 40 close to the first limiting plate 11. The protruding portion 21 can be matched with the limiting hole, that is, the protruding portion 21 can penetrate into the limiting hole, so as to clamp the diaphragm 40.

It can be understood that the size of the limiting hole 41 can be set according to the projection area of the protruding portion 21 on the membrane 40 and the length of the protruding portion 21 extending into the limiting hole 41. The size of the stopper hole 41 is not particularly limited in the present application.

The application provides a backplate 10 includes first limiting plate 11 and second limiting plate 12 that the interval set up, and joint spare 20 is connected towards the wall of second limiting plate 12 with first limiting plate 11, and this joint spare 20 includes: the diffusion plate 30 is arranged between the clamping piece 20 and the second limiting plate 12 and attached to the second limiting plate 12 and faces the bulge part 21 of the second limiting plate 12; the membrane 40 is attached to the diffusion plate 30, the membrane 40 is located on one side of the diffusion plate 30 close to the clamping piece 20, a limiting hole 41 is formed in a first position of the membrane 40, and the first position is a projection position of the boss 21 on the membrane 40; the protruding portion 21 can extend into the limiting hole 41 to clamp the diaphragm 40. Thus, the diaphragm 40 is clamped between the first stopper plate 11 and the second stopper plate 12 by the boss 21. Further, when the display apparatus 1000 is subjected to an impact, the protrusion 21 may block the diaphragm 40 from jumping out of between the first stopper plate 11 and the second stopper plate 12. In addition, the clamping membrane 40 of the display device 1000 is simple and reliable in structure and low in assembly requirement, so that the production efficiency of the display device 1000 is improved.

Fig. 6 shows a schematic perspective structure of a clamping member provided in an embodiment of the present application, and fig. 7 shows a schematic perspective structure of a backlight module provided in an embodiment of the present application. In order to facilitate the installation of the diaphragm 40 between the first limiting plate 11 and the second limiting plate 12, so that the boss 21 extends into the limiting hole 41, in some embodiments, as shown in fig. 6 and 7, the boss 21 may include: the first guiding inclined surface 211 is a wall surface of the protruding portion 21 on a side away from the middle frame 13, and the first guiding inclined surface 211 is used for guiding the diaphragm 40 so that the protruding portion 21 protrudes into the limiting hole 41.

Thus, when diaphragm 40 needs to be installed, as shown in fig. 8, diaphragm 40 and diffusion plate 30 may be attached first, and diffusion plate 30 and diaphragm 40 after attachment are pushed horizontally toward center 13, because diaphragm 40 is made of flexible material, when limiting hole 41 of diaphragm 40 is pushed horizontally to bracket guide first guide inclined plane 211, as shown in fig. 9, limiting hole 41 is forced to deform downward along first guide inclined plane 211, and continues to push diffusion plate 30 and diaphragm 40 until one end of boss 21 near second limiting plate 12 contacts limiting hole 41, as shown in fig. 10, boss 21 slides into limiting hole 41, diaphragm 40 elastically resets, i.e., returns to a planar state, and boss 21 engages diaphragm 40. Thus, the first guide slope 211 can guide the film 40 conveniently, thereby improving the installation efficiency of the film 40 and reducing the production cost of the backlight module 100.

In one possible implementation, as shown in fig. 6 and 7, the protrusion 21 may further include: an abutment surface 212 and a connection surface 213; the abutting surface 212, the connecting surface 213 and the first guiding inclined surface 211 form a triangle; the abutting surface 212 faces the middle frame 13, and when the boss 21 is inserted into the stopper hole 41, the abutting surface 212 abuts against an inner wall surface 411 of the diaphragm 40 at the stopper hole 41, thereby clamping the diaphragm 40 between the first stopper plate 11 and the second stopper plate 12. The connecting surface faces the first limiting plate 11 and is connected to the first limiting plate 11.

Alternatively, as shown in fig. 6, the protrusion 21 may have a right triangular prism shape, the abutting surface 212, the connection surface 213 and the first guiding inclined surface 211 are all rectangular, and the abutting surface 212 is perpendicular to the connection surface 213. Thus, when the end of the boss 21 close to the second stopper plate 12 contacts the stopper hole 41, the boss 21 slides vertically into the stopper hole 41. The protruding portion 21 does not apply an additional force to the diaphragm 40 in the process of sliding into the limiting hole 41, and after the protruding portion 21 slides into the limiting hole 41, the abutting surface 212 abuts against the inner wall surface 411 of the diaphragm 40 at the limiting hole 41.

In some embodiments, as shown in fig. 7 and 10, a projection of the protrusion 21 in a first direction (i.e., a Y-axis direction in fig. 7) is offset from the diffusion plate 30, and the first direction is an arrangement direction of the first restriction plate 11 to the second restriction plate 12. That is, the protrusion 21 and the diffusion plate 30 are disposed in a staggered manner in the direction in which the protrusion 21 extends into the stopper hole 41.

Thus, the protruding portion 21 and the diffusion plate 30 are disposed in a staggered manner in the direction in which the protruding portion 21 extends into the limiting hole 41, and when the protruding portion 21 is connected to the film 40 in a clamping manner, the protrusion can be prevented from being blocked by the diffusion plate 30, that is, when the limiting hole 41 of the film 40 is pushed horizontally to the first guiding inclined plane 211, the film 40 is supported by the diffusion plate 30, and the film 40 cannot deform downwards along the first guiding inclined plane 211 due to the acting force of the first guiding inclined plane 211, so that the protruding portion 21 cannot be connected to the film 40 in a clamping manner.

In addition, because the protruding portion 21 and the diffusion plate 30 are disposed in a staggered manner in the direction in which the protruding portion 21 extends into the limiting hole 41, when the diaphragm 40 is damaged and needs to be detached, as shown in fig. 11 and 12, a thin auxiliary tool 300 (for example, the diaphragm 40) can be inserted from the limiting hole 41, and the diaphragm 40 can be bent toward the second limiting plate 12 by using the auxiliary tool 300, so that the protruding portion 21 is removed from the limiting hole 41, and thus, the diaphragm 40 and the diffusion plate 30 are removed from between the first limiting plate 11 and the second limiting plate 12, the detachment is simple, and the detachment and maintenance efficiency of the diaphragm 40 is improved.

In other embodiments, the diffuser 30 has an avoiding opening (or called a notch) at the second position. When the diffusion plate 30 and the film 40 are pushed horizontally toward the center frame 13 after the lamination, the escape opening is used for escaping from the protrusion 21 so as to prevent the film 40 from moving and being hindered by the diffusion plate 30.

It can be understood that the connection manner of the back plate 10 and the clip member 20 may be glue joint, and in order to improve the connection strength of the back plate 10 and the clip member 20, in some embodiments, as shown in fig. 13, the clip member 20 further includes: a connecting plate 22, the connecting plate 22 comprising: a first wall 221 and a second wall 222, the first wall 221 and the second wall 222 being disposed opposite to each other, the first wall 221 being connected to the first stopper plate 11, the second wall 222 being connected to the connection surface 213 of the boss 21, the area of the first wall 221 being larger than the area of the connection surface 213.

So, compare in being connected face 213 and directly be connected with first limiting plate 11, be connected with first limiting plate 11 through connecting plate 22, joint spare 20 increases with the area of contact of first limiting plate 11 to, when connecting backplate 10 and joint spare 20, can improve its joint strength.

Wherein, the connection between the connection plate 22 and the first limiting plate 11 can refer to the description of the aforementioned engaging member 20 and the first limiting plate 11, and the description of this application is not repeated herein.

In addition, the connecting plate 22 and the protruding portion 21 may be formed integrally. The connection strength between the connection plate 22 and the protruding portion 21 is high, and in the assembling process, the connection plate 22 and the protruding portion 21 do not need to be additionally connected, so that the assembling process of the backboard 10 is reduced.

In some embodiments, as shown in fig. 13, the connection plate 22 further includes: and a second guide slope 223, the second guide slope 223 being a wall surface of the connecting plate 22 on a side away from the middle frame 13, for guiding the diaphragm 40 to the first guide slope 211. Thus, when the film 40 is pushed horizontally toward the middle frame 13 (i.e. in the direction opposite to the X-axis direction in fig. 7), if the film 40 abuts against the connecting plate 22, the second guide slope 223 on the connecting plate 22 can guide the film 40 to the first guide slope 211, which further facilitates the improvement of the mounting efficiency of the film 40 and reduces the production cost of the backlight module 100.

In some embodiments, as shown in fig. 14, the second wall 222 of the connecting plate 22 is further provided with a limiting portion 23, and the limiting portion 23 faces the membrane 40 and abuts against a wall surface of the membrane 40 on a side close to the connecting plate. Thus, the convex portion 21 can restrict the movement of the diaphragm 40 in the first direction, and prevent the diaphragm 40 from shaking in the first direction.

In a possible implementation manner, the limiting portion 23 may be disposed between the protruding portion 21 and the middle frame 13, and the arrangement direction of the middle frame 13 and the limiting portion 23 is perpendicular to the arrangement direction of the first limiting plate 11 and the second limiting plate 12, so that, when the protruding portion 21 slides into the limiting hole 41, the limiting portion 23 abuts against the wall surface of the diaphragm 40 on the side close to the connecting plate 22 after the diaphragm 40 is elastically restored.

The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A display device, comprising:

the back plate comprises a first limiting plate and a second limiting plate which are arranged at intervals;

the clamping piece is connected with the wall surface of the first limiting plate facing the second limiting plate; the clip member includes: the bulge part faces the second limiting plate;

the diffusion plate is arranged between the clamping piece and the second limiting plate and is attached to the second limiting plate;

the diaphragm is attached to the diffusion plate and located on one side, close to the clamping piece, of the diffusion plate, a limiting hole is formed in a first position of the diaphragm, and the first position is a projection position of the boss on the diaphragm; the protruding part can extend into the limiting hole, so that the diaphragm is clamped.

2. The display device of claim 1, wherein the backplane further comprises: one end of the middle frame is fixedly connected with the first limiting plate, and the other end of the middle frame is fixedly connected with the second limiting plate;

the boss portion includes: the diaphragm limiting device comprises a first guide inclined plane, wherein the first guide inclined plane is that the boss is far away from the wall surface of one side of the middle frame, and the first guide inclined plane is used for guiding the diaphragm into the middle frame, so that the boss extends into the limiting hole.

3. The display device according to claim 2, wherein the projection portion further comprises: an abutting surface and a connecting surface; the abutting joint surface, the connecting surface and the first guide inclined surface surround to form a triangle; the abutting surface faces the middle frame and can abut against the inner wall surface of the membrane at the limiting hole; the connecting surface faces the first limiting plate and is connected with the first limiting plate.

4. The display device according to claim 3, wherein the boss portion has a right triangular prism shape, the abutting surface, the connection surface, and the first guide slope are all rectangular, and the abutting surface is perpendicular to the connection surface.

5. The display device according to any one of claims 2 to 4, wherein the middle frame, the first limiting plate and the second limiting plate are of an integrally molded structure.

6. The display device according to claim 1, wherein a projection of the protrusion in a first direction is offset from the diffusion plate, the first direction being an arrangement direction of the first restriction plate to the second restriction plate.

7. The display device according to claim 3 or 4, wherein the clip further comprises: the connecting plate, the connecting plate includes relative first wall and second wall, first wall with first limiting plate is connected, the second wall with it connects to connect the face, the area of first wall is greater than connect the area of face.

8. The display device according to claim 7, wherein the connecting plate and the protrusion are of an integrally molded structure.

9. The display device according to claim 7, wherein the connection plate further comprises: and the second guide inclined plane is a wall surface of the connecting plate far away from one side of the middle frame and is used for guiding the diaphragm to the first guide inclined plane.

10. The display device according to claim 7, wherein a stopper is further provided on the second wall surface of the connection plate, the stopper facing the diaphragm and abutting against a wall surface of the diaphragm on a side close to the connection plate.

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