Display device

Abstract

The utility model discloses a display device which comprises a first rear shell and a second rear shell, the edge of the first rear shell is provided with a protruding part, the edge of the second rear shell is provided with an outer edge part, and the protruding part is contained in a first groove in the outer edge part. The first splicing face of the protruding part extends from the edge of the first face in the first direction and inclines towards the first extrusion face in the first direction, and the part, close to the first face, of the first extrusion face inclines towards the first splicing face in the first direction. The second splicing face of the outer edge part extends from the edge of the second face in the first direction and inclines towards the second extrusion face in the first direction, and the part, close to the first face, of the second extrusion face inclines towards the second splicing face in the first direction. The first splicing face abuts against the second splicing face, and the part, close to the first face, of the first extrusion face abuts against the second extrusion face. According to the display device, the assembling gap can be reduced, and the dustproof effect can be improved on the basis that the appearance effect of the display device is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, and in particular to a display device. BACKGROUND

[0002] The display device (such as a television) on the market usually comprises a display module and a rear shell. For a large-size display device, a larger injection molding machine needs to be used, and it is difficult to integrally injection mold and the cost is high. Therefore, the rear shell of the current display device usually adopts a split rear shell to reduce the injection molding cost.

[0003] In the related art, the rear shell comprises a first rear shell and a second rear shell. The first rear shell is usually connected to the second rear shell in a lapping and screwing manner, which causes a large assembly gap at the connection between the first rear shell and the second rear shell, and the assembly gap is uneven. Not only is it easy to get dust, but also the waterproof effect is poor, and the appearance effect of the display device is also seriously affected. UTILITY MODEL CONTENT

[0004] The display device disclosed by the embodiments of the present application can reduce the assembly gap between the first rear shell and the second rear shell, can realize dustproof and dustproof, and can also improve the appearance effect of the display device.

[0005] In order to achieve the above-mentioned purpose, the display device disclosed by the embodiments of the present application comprises:

[0006] a display module, wherein the display module comprises a back plate;

[0007] a rear shell structure connected to the back plate;

[0008] the rear shell structure comprises:

[0009] a first rear shell having a first face away from the back plate, and an edge of the first rear shell is provided with a protruding portion protruding in a first direction;

[0010] a second rear shell having a second face away from the back plate, and an edge of the second rear shell is provided with an outer edge portion, a first groove recessed in the first direction is formed on the outer edge portion, and the protruding portion is accommodated in the first groove, so that the second rear shell is connected to the second rear shell;

[0011] the protruding portion comprises:

[0012] a first splicing face extending from the edge of the first face in the first direction;

[0013] The first extrusion surface is arranged opposite to the first joint surface along a second direction, the first joint surface is inclined towards the first extrusion surface along the first direction, and a portion of the first extrusion surface close to the first surface is inclined towards the first joint surface along the first direction;

[0014] The outer edge portion comprises:

[0015] The second joint surface extends from an edge of the second surface along the first direction;

[0016] The second extrusion surface is arranged opposite to the second joint surface along the second direction, the second joint surface is inclined towards the second extrusion surface along the first direction, and a portion of the second extrusion surface close to the first surface is inclined towards the second joint surface along the first direction;

[0017] The first bottom surface is connected between the second joint surface and the second extrusion surface, and the first bottom surface, the second joint surface and the second extrusion surface jointly enclose the first recess;

[0018] The first joint surface abuts against the second joint surface, the portion of the first extrusion surface close to the first surface abuts against the second extrusion surface, the first direction is a direction in which the rear shell faces the display module, and the second direction is a direction parallel to a plane in which the display module is located.

[0019] By arranging the first rear shell and the second rear shell to have the joint surfaces and the extrusion surfaces arranged to be inclined to each other, the portions of the protruding portion and the outer edge portion close to the first surface form mutually matched wedge-shaped structures. During assembly, under the action of the component force of the portion of the extrusion surface close to the first surface arranged to be inclined, the portions of the joint surfaces close to the first surface can be brought into contact and gradually extruded to be more tightly, and finally assembled in place to form a zero-gap or an approximately zero-gap match. Moreover, since the first joint surface extends from the edge of the first surface of the first rear shell and the second joint surface extends from the edge of the second surface of the second rear shell, the surfaces of the first rear shell and the second rear shell to be jointed are both continuous inclined surfaces, and the match under the mutual extrusion during assembly is tighter. From the appearance, the jointing effect of the first rear shell and the second rear shell is better, and on the basis of realizing the appearance effect of the display device, the dustproof and waterproof effect can also be improved.

[0020] As an optional implementation, the first extrusion surface is inclined towards the first joint surface along the first direction, so that the first extrusion surface and the first joint surface are close to each other along the first direction;

[0021] The second extrusion surface is inclined towards the second joint surface along the first direction, so that the second extrusion surface and the second joint surface are close to each other along the first direction.

[0022] That is, the first extrusion surface is close to the first joint surface along the first direction as a whole, and the first extrusion surface and the first joint surface are arranged close to each other along the first direction, so that the convex part is tapered along the first direction as a whole. Correspondingly, the second extrusion surface is close to the second joint surface along the first direction as a whole, and the second extrusion surface and the second joint surface are arranged close to each other along the first direction, so that the first recess is also tapered along the first direction as a whole. In this way, when the convex part is assembled into the first recess of the outer edge part, the oblique surfaces of the positive direction and the negative direction can transmit the force to any direction, so as to press the convex part and the outer edge part to each other, so that the first joint surface and the second joint surface are tightly matched as a whole, and the gap between the first rear shell and the second rear shell is smaller.

[0023] In addition, since the extrusion surfaces are inclined as a whole, the transmission of the force in various directions is performed between the entire extrusion surfaces. Compared with the case where only part of the extrusion surfaces are inclined, the joint gap between the first joint surface and the second joint surface is more uniform and does not fluctuate greatly, thereby being beneficial to the stability of the joint of the first rear shell and the second rear shell.

[0024] As an optional implementation, at least one of the first extrusion surface and the second extrusion surface comprises:

[0025] A first part, the inclination angle of the first part relative to the first direction is A, and the first part is in abutment with the other one of the first extrusion surface and the second extrusion surface;

[0026] A second part, the second part is connected to one side of the first part close to the back plate along the first direction, and the inclination angle of the second part relative to the first direction is B, B is greater than A, so that the second part is spaced apart from the other one of the first extrusion surface and the second extrusion surface.

[0027] By setting the extrusion surface as two parts with different inclination angles, the inclination angle of the second part close to the back plate relative to the first direction is greater than the inclination angle of the first part. In this way, while the first joint surface and the second joint surface are tightly matched by the interaction of the first part and the other extrusion surface, a gap is reserved between the second part and the other extrusion surface, thereby preventing the convex part and the first recess from being assembled in place, and preventing the convex part and the root of the outer edge part from being extruded to deform the second rear shell.

[0028] As an optional implementation, the protruding part comprises:

[0029] The first top surface is connected between the first splicing surface and the first extrusion surface;

[0030] The outer edge part has an upper surface facing away from the back plate, the first recess is formed in the upper surface, and the first rear shell has an inner surface arranged towards the back plate;

[0031] The first bottom surface abuts against the first top surface, and the upper surface is arranged in a spaced manner with the inner surface; or,

[0032] The first bottom surface is arranged in a spaced manner with the first top surface, and the upper surface abuts against the inner surface.

[0033] By abutting the first top surface of the protruding part and the first bottom surface of the outer edge part, the first rear shell after assembly can be supported, and the stability of splicing the first rear shell and the second rear shell can be ensured. At the same time, by arranging the upper surface of the outer edge part of the second rear shell in a spaced manner with the inner surface of the first rear shell, it is avoided that there is another contact part between the first rear shell and the second rear shell in addition to the support of the protruding part and the outer edge part, so that the situation that the second rear shell lifts up the first rear shell occurs in the assembly process. It can be seen that by using the scheme of the present application, effective support between the first rear shell and the second rear shell can be achieved, and the situation that the first surface and the second surface form a gap due to the lifting of the first rear shell, thereby affecting the appearance effect, can be avoided.

[0034] As an optional implementation, the first rear shell has a third surface arranged opposite to the first surface, the third surface is provided with a second recess, the second recess is arranged adjacent to the protruding part, the first extrusion surface of the protruding part constitutes a side wall surface of the recess, the second recess has the inner surface, and at least part of the outer edge part extends into the second recess.

[0035] By arranging the second recess adjacent to the protruding part on the first rear shell, and extending the outer edge part of the second rear shell into the second recess, the outer edge part can be limited by the second recess, so as to limit the position of the second rear shell in the direction perpendicular to the first direction, effectively prevent the first rear shell and the second rear shell from moving in the direction perpendicular to the first direction, and ensure the stability of splicing the first rear shell and the second rear shell.

[0036] As an optional implementation, the protruding part extends from one side of the first rear shell to the other side of the first rear shell along a third direction, the first extrusion surface is provided with a plurality of third recesses, the plurality of third recesses are spaced along the third direction, and the third recesses penetrate through one end of the protruding part away from the first surface;

[0037] The third direction intersects with the first direction and the second direction.

[0038] By extending the protruding portion along the third direction from one side of the first rear shell to the other side of the first rear shell, that is, the protruding portion is an integral protruding structure, so that during assembly, each protruding portion does not need to be aligned, making the alignment of the installation process simpler, thereby facilitating the assembly convenience.

[0039] Since the protruding portion is an integral structure from one side of the first rear shell to the other side, correspondingly, the first extrusion surface also extends along the third direction and has a long extension length. During the assembly of the protruding portion, the large contact surface of the first extrusion surface can cause a large assembly resistance. By providing a plurality of third grooves on the first extrusion surface and penetrating the third grooves from one end of the protruding portion away from the first surface, assembly rib positions are formed between adjacent third grooves, so that the contact area between the first extrusion surface and the second extrusion surface is reduced, which can effectively reduce the assembly resistance, thereby facilitating the assembly of the first rear shell.

[0040] As an optional implementation, the first rear shell is provided with a first clamping portion, the first clamping portion is arranged close to the joint of the first rear shell and the second rear shell, the back plate is provided with a second clamping portion, and the first clamping portion is clamped in the second clamping portion.

[0041] By connecting the first clamping portion on the first rear shell with the second clamping portion on the back plate, the first rear shell can be further prevented from being warped or detached from the first groove. Since the second rear shell is limited by the first rear shell, the second rear shell can be prevented from moving away from the back plate. On the basis of the clamping of the first rear shell and the back plate, the connection stability of the first rear shell is guaranteed, so that the limiting effect of the first rear shell on the second rear shell is more stable, thereby improving the reliability of the overall connection of the first rear shell and the second rear shell.

[0042] As an optional implementation, the first clamping portion is a clamping groove, the first rear shell is provided with a guide portion, and the guide portion is configured to guide the second clamping portion to be clamped in the first clamping portion; or,

[0043] The second clamping portion is a clamping groove, the back plate is provided with a guide portion, and the guide portion is configured to guide the first clamping portion to be clamped in the second clamping portion.

[0044] When the first clamping portion or the second clamping portion is a clamping groove, by providing a guide portion on the back plate or the second rear shell where the clamping groove is located, the other clamping portion can be guided to be clamped in the clamping groove, so that the clamping process is smoother and the assembly of the first rear shell is facilitated.

[0045] As an optional implementation, when the second clamping part is a clamping groove, the back plate is bent towards the side close to the first rear shell to form the guide part, and the bent part of the back plate is located in the second clamping part.

[0046] Since the first rear shell forms the appearance surface of the display device, by setting the second clamping part on the back plate as a clamping groove, the appearance effect of the first rear shell can be unaffected, and by forming the guide part through the bending of the back plate, the guide part does not need to be additionally provided, the structure is simple, and the molding process is more convenient. In addition, the bent part can play a certain reinforcing role, and when the first clamping part is clamped into the clamping groove and contacts the back plate, the first clamping part can be effectively reinforced, and the connection reliability of the first clamping part and the clamping groove can be ensured.

[0047] As an optional implementation, the distance from the first clamping part to the joint of the first rear shell and the second rear shell is less than or equal to 25 mm.

[0048] By setting the first clamping part close to the joint of the first rear shell and the second rear shell and controlling the setting distance to be within 25 mm, the clamping position can effectively prevent the joint of the first rear shell and the second rear shell from being warped or separated. If the distance is too large, the rear shell structure cannot be prevented from being warped or separated at the joint, and there is no reliable reinforcing structure in the effective range of the joint of the first rear shell and the second rear shell, which can easily cause the first rear shell and the second rear shell to be separated from each other under external force.

[0049] Compared with the prior art, the display device provided by the application has the following beneficial effects:

[0050] The display device provided by the application sets the first rear shell and the second rear shell to have mutually inclined joint surfaces and pressing surfaces, so that the protruding part and the outer edge part close to the first surface form a wedge-shaped structure that cooperates with each other. Under the action of the component force of the inclined pressing surface close to the first surface during assembly, the joint surfaces close to the first surface can be in contact and gradually pressed more tightly, and finally form a zero-gap or near-zero-gap fit after assembly. In addition, since the first joint surface extends from the edge of the first surface of the first rear shell and the second joint surface extends from the edge of the second surface of the second rear shell, the surfaces of the first rear shell and the second rear shell that are jointed are both continuous inclined surfaces, and the fit under the mutual pressing action during assembly is tighter. From the appearance, the joint effect of the first rear shell and the second rear shell is better, and on the basis of realizing the appearance effect of the display device, the dustproof and waterproof effect can also be improved. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0052] Figure 1 A structural diagram of a display device provided by an embodiment of the present application;

[0053] Figure 2 An exploded schematic view of a display device provided by an embodiment of the present application;

[0054] Figure 3 A structural diagram of a first rear shell provided by an embodiment of the present application;

[0055] Figure 4 A structural diagram of a second rear shell provided by an embodiment of the present application;

[0056] Figure 5 A partial enlarged schematic view of a second rear shell provided by an embodiment of the present application;

[0057] Figure 6 A sectional view of a rear shell structure connected to a back plate provided by an embodiment of the present application;

[0058] Figure 7 A partial side view of a first rear shell provided by an embodiment of the present application;

[0059] Figure 8 A second structural schematic diagram of a first rear shell provided by an embodiment of the present application;

[0060] Figure 9 A Figure 6 enlarged schematic view of position A in FIG. 13;

[0061] Figure 10 An exploded schematic view of a rear shell structure connected to a back plate provided by an embodiment of the present application;

[0062] Figure 11 A Figure 10 enlarged schematic view of position B in FIG. 13.

[0063] Explanation of reference signs:

[0064] 1. A display device; 100, display module; 100a, display side; 100b, backlight side; 110, display screen; 120, front shell; 200, back plate, 210, second clamping portion; 220, guide portion; 300, rear shell structure; 10, first rear shell; 10a, first face; 10b, third face; 10c, inner surface; 11, protruding portion; 111, first splicing face; 112, first extrusion face; 112a, first part; 112b, second part; 1121, third groove; 1122, assembly rib position; 113, first top face; 12, second groove; 13, first clamping portion; 20, second rear shell; 20a, second face; 21, outer edge portion; 21a, flared end; 21b, narrowed end; 211, second splicing face; 212, second extrusion face; 213, first bottom face; 214, upper surface; 22, first groove; X, first direction; Y, second direction; Z, third direction; A, inclination angle of first part relative to first direction; B, inclination angle of second part relative to first direction. DETAILED DESCRIPTION

[0065] 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. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0066] In the present application, the terms "upper", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0067] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. Those of ordinary skill in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0068] In addition, the terms "provided with", "provided with", "connected" should be understood broadly. For example, it can be fixedly connected, detachably connected, or integrally constructed; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. Those of ordinary skill in the art can understand the specific meaning of the above-mentioned terms in the present application according to the specific situation.

[0069] In addition, the terms "first", "second", and the like are used to distinguish different devices, elements or components (the specific type and configuration of which can or can not be the same), and are not used to indicate or imply relative importance or quantity of the indicated devices, elements or components. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0070] The technical solutions of the present application will be further described below in conjunction with the embodiments and drawings.

[0071] Referring to Figure 1 and Figure 2 , the display device 1 can be used to display image information, for example, it can be a television, a computer display, a liquid crystal display panel, etc. The display device 1 can be widely used in homes, offices, conference halls, exhibition halls, stations, hospitals or shopping malls, etc. The following is described by taking the display device 1 as a television as an example.

[0072] In some embodiments, the display device 1 includes a display module 100. Taking the display device 1 as a television as an example, the display module 100 can be the part of the television including the display screen 110, the front shell 120 and the back plate 200. The part will be further introduced in conjunction with the embodiments.

[0073] The display module 100 has a display side 100a and a backlight side 100b. The display side 100a is the side facing the user, and the backlight side 100b is the side facing away from the user. If the display device 1 is installed on the wall, the backlight side 100b is the side close to the wall.

[0074] The display module 100 has a thickness direction from the display side 100a to the backlight side 100b, and also has a width direction and a height direction. The height direction is from the top of the display module 100 to the bottom of the display module 100, and the width direction is from one side of the display module 100 to the other side of the display module 100. Among the thickness direction, the front-back direction and the height direction, any two of them are perpendicular or approximately perpendicular to each other.

[0075] It can be understood that in the production process, due to factors such as equipment precision, measurement error and other process factors, the actual forming effect of the display module 100 can be affected, so that the display module 100 is "approximately perpendicular" in the width direction, the front-back direction and the height direction, that is, the included angle between the width direction, the front-back direction and the height direction can be approximately equal to 90°, for example, 88°, 89°, 91° or 92°, etc.

[0076] In some embodiments, referring to Figure 1The display module 100 can include a display screen 110, wherein the display screen 110 has a display side 100a and a backlight side 100b, the display screen 110 displays images on the display side 100a, and the display screen 110 can include a display area and a circuit board located on one side of the display area, and the entire display screen 110 is driven and displayed through the circuit board.

[0077] In some embodiments, the display screen 110 can include a display panel, a light source, and an optical film group (not shown). The light source, the optical film group, and the display panel are sequentially arranged from back to front. The light emitted by the light source is projected onto the display panel after passing through the optical film group, and then the image information is displayed on the display panel.

[0078] The optical film group can include a diffusion plate and a plurality of film pieces (not shown) arranged in sequence. The plurality of film pieces include a light enhancement piece and a plurality of prism pieces, or the plurality of film pieces include a plurality of prism pieces. The display panel is located in front of the optical film group, and the light in the optical film group is transmitted forward to the display panel. The liquid crystal molecules in the display panel are deflected by the electric field, reducing the pass rate of the light emitted by the optical film group into the liquid crystal panel, and then the light is projected onto the different color filters to form an image.

[0079] In some embodiments, the display module 100 can include a front shell 120, which is arranged around the periphery of the display screen 110 and can function to fix and support the display screen 110.

[0080] In some embodiments, in combination with Figure 2 The display device 1 includes a back plate 200 located on the backlight side 100b of the display screen 110. The back plate 200 is the main support structure of the display device 1, and the back plate 200 is connected to the front shell 120 to support the display screen 110, and a mounting space is formed therebetween for the display screen 110.

[0081] It can be understood that the front shell 120 can be a frame structure, and the front shell 120 can be detachably connected to the back plate 200. Of course, in some embodiments, the front shell 120 can be integrally formed with the back plate 200, and the front shell 120 protrudes towards the display side 100a around the periphery of the back plate 200. The front shell 120 and the back plate 200 form a mounting cavity (not shown) with an opening on the front side to mount the light source, the optical film group, and the display panel.

[0082] In some embodiments, the display device 1 includes a rear shell structure 300 connected to the back plate 200. The rear shell structure 300 is detachably connected to the back plate 200, and the components inside the display device 1 can be protected by the rear shell structure 300.

[0083] It can be understood that the rear shell structure 300 is connected to the rear side of the back plate 200 along the front-rear direction of the display module 100 (i.e., the thickness direction of the display module 100). Wherein, the direction of the rear shell structure 300 towards the display module 100 is defined as the first direction X, and the direction parallel to the plane where the display module 100 is located is defined as the second direction Y, for example, the second direction Y can be the width direction of the display module 100, or the second direction Y can be the height direction of the display module. When the second direction Y is the width direction of the display module 100, the height direction of the display module can be defined as the third direction Z. When the second direction Y is the height direction of the display module 100, the width direction of the display module 100 can be defined as the third direction Z.

[0084] In some embodiments, the display device 1 further comprises a base (not shown), which can be used to support the display device 1. Optionally, the base can be fixed to the back of the back plate 200 for supporting the back plate 200, thereby supporting the entire display device 1. Alternatively, the base is provided on the rear shell structure 300 for supporting the display device 1. Of course, in other embodiments, the display device 1 is not provided with a base, and the back of the display device 1 can be hung on the wall by a wall mounting structure.

[0085] In some embodiments, referring to 2 and Figure 3 The rear shell structure 300 comprises a first rear shell 10 having a first face 10a facing away from the back plate 200, and an edge of the first rear shell 10 is provided with a protruding portion 11 protruding along the first direction X.

[0086] It can be understood that, as known from the foregoing, when the display device 1 is a television, the television is usually rectangular, and based on this, the first rear shell 10 is usually a rectangular shell, and the first face 10a can be a rectangular surface of the first rear shell 10 along the thickness direction, i.e., a large face of the first rear shell 10. Correspondingly, the protruding portion 11 can extend along the length direction of the first face 10a, i.e., along the length direction of the first rear shell 10, the protruding portion 11 extends from one side of the length direction of the first face 10a to the other side of the length direction of the first face 10a, i.e., the length of the protruding portion 11 is substantially consistent with the length of the first face 10a.

[0087] In some embodiments, in combination with Figure 4 The rear shell structure 300 comprises a second rear shell 20 having a second face 20a facing away from the back plate 200, and an edge of the second rear shell 20 is provided with an outer edge portion 21, and a first groove 22 recessed along the first direction X is formed on the outer edge portion 21, and the protruding portion 11 is accommodated in the first groove 22, so that the second rear shell 20 is connected to the second rear shell 20.

[0088] Correspondingly, the outer edge portion 21 also extends along the length direction of the second surface 20a, i.e., along the length direction of the second back shell 20, and extends from one side of the length direction of the second surface 20a to the other side of the length direction of the second surface 20a, i.e., the length of the outer edge portion 21 is substantially consistent with the length of the second surface 20a. Then, the length of the first groove 22 formed on the outer edge portion 21 is also substantially consistent with the length of the second surface 20a.

[0089] It can be understood that the first surface 10a is an outer surface of the first back shell 10, i.e., as an appearance surface of the first back shell 10. Correspondingly, the second surface 20a is an outer surface of the second back shell 20, i.e., as an appearance surface of the second back shell 20. If the display device 1 is hung on a wall, for example, the first surface 10a and the second surface 20a are both surfaces facing the wall.

[0090] In addition, the protruding portion 11 is protruding towards the inside of the display device 1. Correspondingly, the first groove 22 is a groove formed by recessing towards the inside of the display device 1.

[0091] The first back shell 10 and the second back shell 20 are connected by the cooperation of the protruding portion 11 and the first groove 22, so that the connection and disassembly of the first back shell 10 and the second back shell 20 are facilitated.

[0092] In some embodiments, the first back shell 10 has a third surface 10b opposite to the first surface 10a, the third surface 10b is a surface facing the back plate 200, i.e., the third surface 10b faces the inside of the display device 1.

[0093] In some embodiments, in combination Figure 3 The protruding portion 11 includes a first splicing surface 111 extending from the edge of the first surface 10a along the first direction X. The first splicing surface 111 is used for splicing with the second back shell 20.

[0094] It is worth noting that the first splicing surface 111 of the protruding portion 11 is formed by extending the first surface 10a of the first back shell 10 at the edge along the first direction X.

[0095] In some embodiments, the protruding portion 11 includes a first pressing surface 112 opposite to the first splicing surface 111 along the second direction Y. The first pressing surface 112 is used for cooperating with the second back shell 20, so that the first splicing surface 111 is tightly connected with the second back shell 20 under the interaction with the second back shell 20.

[0096] In some embodiments, the first splicing surface 111 is inclined towards the first pressing surface 112 along the first direction X. The inclined first splicing surface 111 is connected with the second rear shell 20, breaking the 90° right-angle splicing in the prior art, so that the splicing part is more closely fitted, and the appearance effect is better.

[0097] In some embodiments, the part of the first pressing surface 112 close to the first surface 10a is inclined towards the first splicing surface 111 along the first direction X. In other words, the part of the first pressing surface 112 close to the connection part between the protruding part 11 and the first rear shell 10 can be inclined towards the first splicing surface 111 along the first direction X, that is, at least part of the first pressing surface 112 is inclined.

[0098] In some embodiments, in combination with Figure 4 and Figure 5 The outer edge part 21 comprises a second splicing surface 211 extending from the edge of the second surface 20a along the first direction X. The second splicing surface 211 is used for splicing with the first splicing surface 111 of the first rear shell 10.

[0099] It is worth noting that the second splicing surface 211 of the outer edge part 21 is formed by extending the second surface 20a of the second rear shell 20 at the edge along the first direction X.

[0100] In some embodiments, the outer edge part 21 comprises a second pressing surface 212 arranged opposite to the second splicing surface 211 along the second direction Y, which is used for cooperating with the second pressing surface 212 of the first rear shell 10 to tightly connect the first splicing surface 111 and the second splicing surface 211 under the interaction of the first pressing surface 112 of the first rear shell 10.

[0101] In some embodiments, the second splicing surface 211 is inclined towards the second pressing surface 212 along the first direction X, and the part of the second pressing surface 212 close to the first surface 10a is inclined towards the second splicing surface 211 along the first direction X. In other words, the part of the second pressing surface 212 close to the connection part between the protruding part 11 and the first rear shell 10 can be inclined towards the first splicing surface 111 along the first direction X, that is, at least part of the second pressing surface 212 is inclined.

[0102] In some embodiments, the outer edge part 21 comprises a first bottom surface 213 connected between the second splicing surface 211 and the second pressing surface 212, and the first bottom surface 213, the second splicing surface 211 and the second pressing surface 212 jointly enclose the first recess 22.

[0103] In some embodiments, the first splicing surface 111 abuts against the second splicing surface 211, and the part of the first extrusion surface 112 close to the first surface 10a abuts against the second extrusion surface 212, so that the first splicing surface 111 and the part of the second splicing surface 211 close to the first surface 10a are tightly fitted, and the first rear shell 10 and the second rear shell 20 are zero-gap fitted.

[0104] As can be seen from the foregoing, the first direction X is the direction in which the rear shell structure 300 faces the display module 100, and the second direction Y is the direction parallel to the plane on which the display module 100 is located. It can be understood that the second direction Y is the direction in which the first rear shell 10 and the second rear shell 20 are arranged adjacently. Optionally, the second direction Y can be the width direction of the display module 100, that is, the first rear shell 10 and the second rear shell 20 are arranged in the width direction of the display module 100 (i.e., the two rear shells can be the left rear shell and the right rear shell of the television, respectively), or the second direction Y can be the height direction of the display module 100, that is, the first rear shell 10 and the second rear shell 20 are arranged in the height direction of the display module 100 (i.e., the two rear shells can be the upper rear shell and the lower rear shell of the television, respectively).

[0105] By arranging the first rear shell 10 and the second rear shell 20 to have the splicing surfaces and the extrusion surfaces arranged obliquely to each other, the protruding portion 11 and the part of the outer edge portion 21 close to the first surface 10a form a wedge-shaped structure that fits each other. In the assembly process, under the action of the component force of the extrusion surface arranged obliquely and close to the first surface 10a, the part of the splicing surface close to the first surface 10a is in contact and gradually extruded more tightly, and finally is assembled in place to form a zero-gap or near-zero-gap fit.

[0106] Since the first splicing surface 111 extends obliquely from the edge of the first surface 10a of the first rear shell 10, and the second splicing surface 211 extends obliquely from the edge of the second surface 20a of the second rear shell 20, the surfaces of the first rear shell 10 and the second rear shell 20 that are spliced together are both continuous oblique surfaces, and the fit under the mutual extrusion in the assembly process is tighter. From the appearance, the splicing effect of the first rear shell 10 and the second rear shell 20 is better, and on the basis of realizing the appearance effect of the display device 1, the dustproof and waterproof effects are also improved.

[0107] It should be noted that the zero-gap fit can mean that there is no gap or only a small gap between the first splicing surface 111 and the second splicing surface 211. In this fit, regardless of the actual size of the protruding portion 11 and the outer edge portion 21, a non-negative gap is formed between the first splicing surface 111 and the second splicing surface 211.

[0108] In some embodiments, referring to Figure 6The first extrusion surface 112 is inclined towards the first joint surface 111 along the first direction X, so that the first extrusion surface 112 and the first joint surface 111 are close to each other along the first direction X.

[0109] In some embodiments, the second extrusion surface 212 is inclined towards the second joint surface 211 along the first direction X, so that the second extrusion surface 212 and the second joint surface 211 are close to each other along the first direction X.

[0110] That is, the first extrusion surface 112 is close to the first joint surface 111 along the first direction X as a whole, and the first extrusion surface 112 and the first joint surface 111 are arranged close to each other along the first direction X, so that the protruding part 11 is tapered as a whole along the first direction X. Correspondingly, the second extrusion surface 212 is close to the second joint surface 211 along the first direction X as a whole, and the second extrusion surface 212 and the second joint surface 211 are arranged close to each other along the first direction X, so that the first recess 22 is also tapered as a whole along the first direction X. In this way, when the protruding part 11 is assembled into the first recess 22 of the outer edge part 21, the oblique surfaces of the positive direction and the negative direction can transmit the force to any direction, so as to press the protruding part 11 and the outer edge part 21 close to each other, and make the first joint surface 111 and the second joint surface 211 fit closely as a whole, and further make the gap between the first rear shell 10 and the second rear shell 20 smaller.

[0111] In addition, since the extrusion surfaces are all inclined as a whole, the transmission of the force in various directions is performed between the entire extrusion surfaces, compared with the inclined arrangement of only part of the extrusion surfaces, the joint gap between the first joint surface 111 and the second joint surface 211 is more uniform, and the fluctuation is not large, so as to be beneficial to the stability of the joint of the first rear shell 10 and the second rear shell 20.

[0112] In the embodiments of the present application, the angles of the first joint surface 111 and the second joint surface 211 relative to the first direction X are consistent, and the angles of the parts abutting the first extrusion surface 112 and the second extrusion surface 212 are consistent.

[0113] Optionally, the first rear shell 10 and the second rear shell 20 are both formed by injection molding, and then, in the molding process, the first rear shell 10 and the second rear shell 20 adopt the positive direction and the negative direction of the mold respectively, so that the protruding part 11 of the first rear shell 10 and the first recess 22 of the second rear shell 20 form a wedge-shaped structure matched with each other.

[0114] It should be noted that the splicing part of the first rear shell 10 and the second rear shell 20 can be designed as a matte finish without skin lines, so as to avoid large resistance in assembly, and make the assembly gap between the first splicing surface 111 and the second splicing surface 211 smaller, thereby making the first rear shell 10 and the second rear shell 20 fit more tightly.

[0115] In some embodiments, referring to Figure 7 and Figure 8 , at least one of the first extrusion surface 112 and the second extrusion surface 212 includes a first part 112a and a second part 112b, the first part 112a has an inclination angle A relative to the first direction X, and the first part 112a abuts against the other one of the first extrusion surface 112 and the second extrusion surface 212. The second part 112b is connected to the first part 112a on the side close to the back plate 200 along the first direction X, and the second part 112b has an inclination angle B relative to the first direction X, B being greater than A, so that the second part 112b is spaced apart from the other one of the first extrusion surface 112 and the second extrusion surface 212.

[0116] By setting the extrusion surface as two parts with different inclination angles, the inclination angle of the second part 112b on the side close to the back plate 200 relative to the first direction X is greater than the inclination angle of the first part 112a, so that the first splicing surface 111 and the second splicing surface 211 can be tightly fitted by the interaction of the first part 112a and the other extrusion surface, while a certain gap is reserved between the second part 112b and the other extrusion surface, thereby preventing the protruding part 11 and the first groove 22 from being unable to be assembled in place, and preventing the protruding part 11 and the root of the outer edge part 21 from being extruded to deform the second rear shell 20.

[0117] In an example, continuing to refer to Figure 7 and Figure 8 , the first extrusion surface 112 includes a first part 112a and a second part 112b, the first part 112a has an inclination angle A relative to the first direction X, and the first part 112a abuts against the second extrusion surface 212. The second part 112b is connected to the first part 112a on the side close to the back plate 200 along the first direction X, and the second part 112b has an inclination angle B relative to the first direction X, B being greater than A, so that the second part 112b is spaced apart from the second extrusion surface 212.

[0118] It can be understood that the first part 112a is the part close to the connection between the protruding part 11 and the first rear shell 10. The inclination angle of the second extrusion surface 212 as a whole is consistent, and the inclination angle is the same as the angle of the first part 112a, so that the first part 112a can extrude the second extrusion surface 212.

[0119] In another example, the second pressing surface 212 includes a first portion 112a and a second portion 112b. The first portion 112a has an angle A with respect to the first direction X, and the first portion 112a abuts the first pressing surface 112. The second portion 112b is connected to the first portion 112a at a side of the first portion 112a close to the back plate 200 along the first direction X, and the second portion 112b has an angle B with respect to the first direction X, where B is greater than A, so that the second portion 112b is spaced apart from the first pressing surface 112.

[0120] It can be understood that, in the connected state of the first rear shell 10 and the second rear shell 20, the first portion 112a is a portion close to the connection between the protruding portion 11 and the first rear shell 10. The angle of the first pressing surface 112 as a whole is consistent, and the angle is the same as the angle of the first portion 112a, so that the first portion 112a can play a role of mutual pressing with the first pressing surface 112.

[0121] In another example, the first pressing surface 112 and the second pressing surface 212 each include a first portion 112a and a second portion 112b. The first portion 112a has an angle A with respect to the first direction X, and the first portion 112a of the first pressing surface 112 abuts the first portion 112a of the first pressing surface 112. The second portion 112b is connected to the first portion 112a at a side of the first portion 112a close to the back plate 200 along the first direction X, and the second portion 112b has an angle B with respect to the first direction X, where B is greater than A, so that the second portion 112b of the first pressing surface 112 is spaced apart from the second portion 112b of the first pressing surface 112.

[0122] In some embodiments, in combination with Figure 7 and Figure 8 The protruding portion 11 includes a first top surface 113 connected between the first splicing surface 111 and the first pressing surface 112. It can be understood that the protruding portion 11 can have a free end, which can refer to an end away from the end of the protruding portion 11 connected to the first rear shell 10. The first top surface 113 is a top surface located at the free end.

[0123] It can be understood that, due to the gradually decreasing size of the first recess 22 in the second direction Y, the outer edge portion 21 has a flared end 21a and a narrowed end 21b. The flared end 21a refers to an end close to the first recess 22 of the outer edge portion 21, where the size in the second direction Y is larger. The narrowed end 21b refers to an end where the size of the first recess 22 in the second direction Y decreases. The first bottom surface 213 is a bottom surface located at the narrowed end 21b. The second splicing surface 211, the second pressing surface 212, and the first bottom surface 213 jointly enclose the first recess 22.

[0124] In some embodiments, the outer edge portion 21 has an upper surface 214 facing away from the back plate 200, and the outer edge portion 21 is formed on the upper surface 214, and the first rear shell 10 has an inner surface 10c arranged towards the back plate 200.

[0125] In some embodiments, the upper surface 214 is lower than the second surface 20a, that is, there is a height difference between the upper surface 214 and the second surface 20a, so that after the first rear shell 10 and the second rear shell 20 are spliced, the height difference between the first surface 10a and the second surface 20a can be reduced.

[0126] In some embodiments, after the first rear shell 10 and the second rear shell 20 are spliced, the first surface 10a and the second surface 20a are coplanar, so that there is no height difference or only a slight height difference between them, thereby making the appearance of the display device 1 more flat and more beautiful.

[0127] It can be understood that the coplanar of the first surface 10a and the second surface 20a means that the first surface 10a and the second surface 20a are located on the same plane in three-dimensional space, that is, in the first direction X, the first surface 10a and the second surface 20a can be at the same height. Of course, due to processing errors or assembly errors, there can be a slight height difference between the first surface 10a and the second surface 20a, and the slight difference between the first surface 10a and the second surface 20a also belongs to the protection scope of the present application.

[0128] Optionally, the edge of the first rear shell 10 can be provided with a rounded corner, that is, a rounded corner is formed between the first surface 10a and the first splicing surface 111, and correspondingly, the edge of the second rear shell 20 can be provided with a chamfer, that is, a rounded corner is formed between the second surface 20a and the second splicing surface 211. In this way, the first rear shell 10 and the second rear shell 20 can be visually integrated, which is more beneficial to the overall appearance and aesthetics of the rear shell structure 300, and in addition, it can prevent the case of being cut by the sharp corners of the edges of the first rear shell 10 and the second rear shell 20, thereby ensuring the safety of the rear shell structure 300.

[0129] In some embodiments, referring to Figure 9 , the first bottom surface 213 abuts against the first top surface 113, and the upper surface 214 is spaced apart from the inner surface 10c, so that the first bottom surface 213 and the first top surface 113 can form mutual support, and the first rear shell 10 and the second rear shell 20 can not be lifted after being assembled in place.

[0130] In some embodiments, the first bottom surface 213 is spaced apart from the first top surface 113, and the upper surface 214 abuts against the inner surface 10c so that the upper surface 214 and the inner surface 10c can form mutual support, and the first rear shell 10 and the second rear shell 20 can not be lifted after being assembled in place.

[0131] By abutting the first top surface 113 of the protruding portion 11 and the first bottom surface 213 of the outer edge portion 21, the first rear shell 10 after assembly can be supported, ensuring the stability of the splicing of the first rear shell 10 and the second rear shell 20. At the same time, by spacing the upper surface 214 of the outer edge portion 21 of the second rear shell 20 and the inner surface 10c of the first rear shell 10, it is avoided that there are other contact positions between the first rear shell 10 and the second rear shell 20 in addition to the support of the protruding portion 11 and the outer edge portion 21, causing the first rear shell 10 to be lifted by the second rear shell 20 during assembly. It can be seen that by using the scheme of the present application, effective support can be formed between the first rear shell 10 and the second rear shell 20, and the first rear shell 10 can also be prevented from being lifted to cause a gap between the first surface 10a and the second surface 20a, affecting the appearance effect.

[0132] In some embodiments, the protruding portion 11 extends from one side of the first rear shell 10 to the other side of the first rear shell 10 along a third direction Z. The third direction Z intersects with the first direction X and the second direction Y two by two. It can be understood that when the first direction X is the thickness direction of the display module 100, and the second direction Y is the width direction of the display module 100, the third direction Z is the thickness direction of the display module 100.

[0133] Correspondingly, the second recess 12 also extends from one side of the first rear shell 10 to the other side of the first rear shell 10 along the third direction Z, and the outer edge portion 21 extends from one side of the second rear shell 20 to the other side along the third direction Z. Then the first recess 22 also extends from one side of the second rear shell 20 to the other side along the third direction Z.

[0134] By extending the protruding portion 11 from one side of the first rear shell 10 to the other side of the first rear shell 10 along the third direction Z, that is, the protruding portion 11 is an integral protruding strip structure, so that during assembly, each protruding portion 11 does not need to be aligned, making the alignment of the installation process simpler and improving the assembly convenience.

[0135] In some embodiments, in combination Figure 7 A plurality of third recesses 1121 are arranged on the first extrusion surface 112, the plurality of third recesses 1121 are spaced along the third direction Z, and the third recess 1121 penetrates one end of the protruding portion 11 away from the first surface 10a.

[0136] Since the protruding part 11 is an integral structure along the first rear shell 10 from one side to the other side, correspondingly, the first extrusion surface 112 also extends along the third direction Z, has a longer extension length, and a larger contact surface of the first extrusion surface 112 in the assembly process of the protruding part 11 can cause a larger assembly resistance. By providing a plurality of third grooves 1121 on the first extrusion surface 112, and penetrating the third grooves 1121 through one end of the protruding part 11 away from the first surface 10a, assembly rib positions 1122 are formed between adjacent third grooves 1121, the contact area between the first extrusion surface 112 and the second extrusion surface 212 is reduced, the assembly resistance can be effectively reduced, and the assembly of the first rear shell 10 is more convenient.

[0137] In some embodiments, continuing to refer to Figures 7 to 9 , the third surface 10b is provided with a second groove 12, the second groove 12 is provided adjacent to the protruding part 11, the first extrusion surface 112 of the protruding part 11 constitutes a side wall surface of the groove, and the second groove 12 has an inner surface 10c, and at least part of the outer edge part 21 extends into the second groove 12.

[0138] By providing the second groove 12 adjacent to the protruding part 11 on the first rear shell 10, and extending the outer edge part 21 of the second rear shell 20 into the second groove 12, the second groove 12 can be used to limit the outer edge part 21, thereby limiting the position of the second rear shell 20 perpendicular to the first direction X, effectively preventing the first rear shell 10 and the second rear shell 20 from moving vertically to the first direction X, thereby ensuring the stability of the splicing of the first rear shell 10 and the second rear shell 20.

[0139] It can be understood that the second groove 12 is recessed in the direction of the first surface 10a along the first direction X, and is provided adjacent to the protruding part 11 along the second direction Y. The first extrusion surface 112 of the protruding part 11 constitutes a side wall surface of the second groove 12, and the second extrusion surface 212 of the outer edge part 21 is contacted by the first extrusion surface 112, and since at least part of the outer edge part 21 extends into the second groove 12, the second extrusion surface 212 also extends into the second groove 12.

[0140] It should be noted that the other side wall surface of the second groove 12 opposite to the first extrusion surface 112 abuts against the outer edge part 21, so as to effectively realize the limiting action on the second rear shell 20.

[0141] Referring to Figure 5 , Figure 10 and Figure 11 , in some embodiments, the first rear shell 10 is provided with a first clamping part 13, the first clamping part 13 is provided close to the splicing position of the first rear shell 10 and the second rear shell 20, the back plate 200 is provided with a second clamping part 210, and the first clamping part 13 is clamped in the second clamping part 210.

[0142] By connecting the first clamping portion 13 on the first rear shell 10 with the second clamping portion 210 on the back plate 200, the first rear shell 10 can be further prevented from being warped or coming out of the first groove 22. Since the second rear shell 20 is limited by the first rear shell 10, the second rear shell 20 can be prevented from moving away from the back plate 200. On the basis of the clamping of the first rear shell 10 and the back plate 200, the connection stability of the first rear shell 10 is guaranteed, so that the limiting effect of the first rear shell 10 on the second rear shell 20 is more stable, thereby improving the reliability of the overall connection of the first rear shell 10 and the second rear shell 20.

[0143] Alternatively, the number of the first clamping portion 13 includes a plurality of first clamping portions 13, and the plurality of first clamping portions 13 are arranged at intervals along the third direction Z (i.e., the extension direction of the protruding portion 11). Correspondingly, the number of the second clamping portion 210 also includes a plurality of second clamping portions 210, and the plurality of second clamping portions 210 are arranged one by one in correspondence with the first clamping portion 13. Alternatively, the distance between two adjacent second clamping portions 210 can be 90 mm, 100 mm, or 110 mm, etc., which can be set according to the overall size of the display device 1.

[0144] In some embodiments, the first clamping portion 13 is a clamping groove, and the first rear shell 10 is provided with a guide portion 220 configured to guide the second clamping portion 210 to be clamped in the first clamping portion 13, so that the first rear shell 10 is more smoothly clamped with the back plate 200.

[0145] In some embodiments, in combination Figure 11 , the second clamping portion 210 is a clamping groove, and the back plate 200 is provided with a guide portion 220 configured to guide the first clamping portion 13 to be clamped in the second clamping portion 210, so that the first rear shell 10 is more smoothly clamped with the back plate 200.

[0146] When the first clamping portion 13 or the second clamping portion 210 is a clamping groove, by providing a guide portion 220 on the back plate 200 or the second rear shell 20 where the clamping groove is located, the other clamping portion can be guided to be clamped in the clamping groove, so that the clamping process is more smooth and the assembly of the first rear shell 10 is facilitated.

[0147] Alternatively, the guide portion 220 can be a guide surface formed in the clamping groove. Specifically, the clamping groove has a circumferentially arranged side wall surface, and one of the side wall surfaces is inclined to form a guide surface having a guiding effect.

[0148] In some embodiments, when the second clamping portion 210 is a clamping groove, the guide portion 220 is formed by bending the back plate 200 towards the side close to the first rear shell 10, and the bending part of the back plate 200 is located in the second clamping portion 210.

[0149] Since the first rear shell 10 forms the appearance surface of the display device 1, by setting the second clamping portion 210 on the back plate 200 as a clamping groove, the appearance effect of the first rear shell 10 can be not affected, and by bending the back plate 200 to form the guide portion 220, the guide portion 220 does not need to be additionally provided, the structure is simple, and the molding processing is more convenient. In addition, the bent part can play a certain reinforcing role, when the first clamping portion 13 is clamped into the clamping groove and contacts the back plate 200, the first clamping portion 13 can play an effective reinforcing role, and the connection reliability of the first clamping portion 13 and the clamping groove can be ensured.

[0150] In some embodiments, the distance from the first clamping portion 13 to the joint of the first rear shell 10 and the second rear shell 20 is less than or equal to 25 mm.

[0151] Alternatively, the distance from the first clamping portion 13 to the joint of the first rear shell 10 and the second rear shell 20 can be 20 mm, 15 mm, or 10 mm, etc.

[0152] By setting the first clamping portion 13 near the joint of the first rear shell 10 and the second rear shell 20 and controlling the setting distance to be within 25 mm, the clamping position can effectively prevent the joint of the first rear shell 10 and the second rear shell 20 from being warped or separated. If the distance is too large, the rear shell structure 300 cannot prevent the joint from being warped or separated, resulting in no reliable reinforcing structure in the effective range of the joint of the first rear shell 10 and the second rear shell 20, and the first rear shell 10 and the second rear shell 20 are easily separated from each other under external force.

[0153] It should be noted that the distance from the first clamping portion 13 to the joint of the first rear shell 10 and the second rear shell 20 can refer to the distance between the side of the first clamping portion 13 close to the protruding portion 11 and the first joint surface 111 of the protruding portion 11, or the distance between the side of the first clamping portion 13 close to the protruding portion 11 and the first extrusion surface 112 of the protruding portion 11, as long as the distance between a certain part on the first clamping portion 13 and a certain part on the protruding portion 11 is met.

[0154] The display device disclosed in the embodiments of the present application is described in detail above, and specific examples are applied in this paper to describe the principles and implementation manners of the present application. The above embodiment description is only used to help understand the display device and its core idea; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. A display device, characterized in that, include: The display module includes a back panel; A rear shell structure, wherein the rear shell structure is connected to the back plate; The rear shell structure includes: A first rear shell, the first rear shell having a first surface facing away from the back plate, and the edge of the first rear shell having a protrusion protruding in a first direction; A second rear shell has a second surface facing away from the back plate. The edge of the second rear shell has an outer edge portion, on which a first groove is formed recessed along the first direction. A protrusion is accommodated in the first groove to connect the second rear shell to the second rear shell. The protrusion includes: A first splicing surface, the first splicing surface extending from the edge of the first surface along the first direction; The first extrusion surface is disposed opposite to the first splicing surface along the second direction. The first splicing surface is inclined towards the first extrusion surface along the first direction. The portion of the first extrusion surface close to the first surface is inclined towards the first splicing surface along the first direction. The outer edge includes: The second splicing surface extends from the edge of the second surface along the first direction; The second extrusion surface is disposed opposite to the second splicing surface along the second direction. The second splicing surface is inclined towards the second extrusion surface along the first direction. The portion of the second extrusion surface near the first surface is inclined towards the second splicing surface along the first direction. A first bottom surface, which is connected between the second splicing surface and the second extrusion surface, together with the first bottom surface, the second splicing surface and the second extrusion surface to form the first groove; Wherein, the first splicing surface abuts against the second splicing surface, the portion of the first extrusion surface near the first surface abuts against the second extrusion surface, the first direction is the direction of the rear shell toward the display module, and the second direction is the direction parallel to the plane where the display module is located.

2. The display device according to claim 1, characterized in that, The first extrusion surface is inclined toward the first splicing surface along the first direction, so that the first extrusion surface and the first splicing surface are close to each other along the first direction; The second extrusion surface is inclined toward the second splicing surface along the first direction, so that the second extrusion surface and the second splicing surface are close to each other along the first direction.

3. The display device according to claim 2, characterized in that, At least one of the first extrusion surface and the second extrusion surface includes: The first part has an inclination angle of A relative to the first direction, and the first part abuts against another of the first extrusion surface and the second extrusion surface; The second part is connected to the side of the first part near the back plate along the first direction. The second part is tilted at an angle B relative to the first direction, where B is greater than A, so that the second part is spaced apart from the other of the first extrusion surface and the second extrusion surface.

4. The display device according to claim 1, characterized in that, The protrusion includes: A first top surface, the first top surface being connected between the first splicing surface and the first extrusion surface; The outer edge has an upper surface facing away from the back plate, the first groove is formed on the upper surface, and the first rear shell has an inner surface facing the back plate; The first bottom surface abuts against the first top surface, and the upper surface and the inner surface are spaced apart; or... The first bottom surface and the first top surface are spaced apart, and the upper surface abuts against the inner surface.

5. The display device according to claim 4, characterized in that, The first rear shell has a third surface opposite to the first surface, and a second groove is provided on the third surface. The second groove is adjacent to the protrusion. The first extrusion surface of the protrusion forms the sidewall of the groove. The second groove has the inner surface, and at least a portion of the outer edge extends into the second groove.

6. The display device according to claim 1, characterized in that, The protrusion extends from one side of the first rear shell to the other side of the first rear shell along a third direction. A plurality of third grooves are provided on the first extrusion surface. The plurality of third grooves are spaced apart along the third direction, and the third grooves penetrate the end of the protrusion away from the first surface. The third direction intersects with both the first direction and the second direction.

7. The display device according to any one of claims 1-6, characterized in that, The first rear shell is provided with a first snap-fit ​​part, which is located near the joint between the first rear shell and the second rear shell. The back plate is provided with a second snap-fit ​​part, and the first snap-fit ​​part snaps into the second snap-fit ​​part.

8. The display device according to claim 7, characterized in that, The first engaging portion is a slot, and the first rear shell is provided with a guide portion, which is configured to guide the second engaging portion to engage with the first engaging portion; or... The second snap-fit ​​portion is a slot, and the back plate is provided with a guide portion, which is configured to guide the first snap-fit ​​portion to snap into the second snap-fit ​​portion.

9. The display device according to claim 8, characterized in that, When the second snap-fit ​​portion is a slot, the back plate is bent toward the side closer to the first rear shell to form the guide portion, and the bent part of the back plate is located in the second snap-fit ​​portion.

10. The display device according to claim 7, characterized in that, The distance from the first snap-fit ​​part to the splice point of the first rear shell and the second rear shell is less than or equal to 25mm.

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