Display device

Abstract

The utility model discloses a display device, which comprises a display module, a first front frame and a second front frame, and is characterized in that the display module comprises a first display surface and a second display surface which are arranged back to back; the first front frame comprises a first side plate and a first front plate which are connected, the first front plate is in lap joint with the edge of the first display face, and the first side plate is arranged on the side face of the display module. The second front frame comprises a second side plate and a second front plate which are connected, the second front plate is in lap joint with the edge of the second display face, and the second side plate is arranged on the side face, away from the display module, of the first side plate and fixedly connected with the first side plate. The production efficiency of the display device can be improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically to a display device. Background Technology

[0002] Double-sided display devices have been widely used in public places such as bank service windows, supermarket cash registers, and government service halls, and have attracted increasing attention.

[0003] However, due to the structure of the double-sided display device, in order to meet the requirements of double-sided display, display windows need to be set on both the front and back sides of its shell. When installing the shell, the display module needs to be aligned with the inside of the shell in order to assemble the display module and the shell, which makes the installation of the shell more complicated and affects production efficiency.

[0004] Therefore, it is necessary to propose a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this application is to provide a display device that can improve the production efficiency of display devices.

[0006] To solve the above problems, the technical solution of this application is as follows:

[0007] This application discloses a display device, comprising:

[0008] The display module includes a first display surface and a second display surface that are positioned opposite each other.

[0009] A first front frame, comprising a first side panel and a first front panel connected together, the first front panel overlapping the edge of the first display surface, and the first side panel disposed on the side of the display module; and

[0010] The second front frame includes a second side plate and a second front plate connected together. The second front plate overlaps the edge of the second display surface. The second side plate is located on the side of the first side plate away from the display module and is fixedly connected to the first side plate.

[0011] In one embodiment of this application, the first side plate and the second side plate are detachably connected.

[0012] In one embodiment of this application, one of the first side plate and the second side plate is provided with a buckle, and the other of the first side plate and the second side plate is provided with a slot. The first side plate and the second side plate are connected by the buckle and the slot.

[0013] In one embodiment of this application, the buckle protrudes from the side of the first side plate away from the display module, and the slot is provided on the side of the second side plate near the first side plate, and the buckle is engaged in the slot.

[0014] The buckle is integrally formed with the first side plate.

[0015] In one embodiment of this application, the first side plate includes:

[0016] A first connecting portion is disposed on the side of the display module and connected to the first front panel, and the first connecting portion extends along the thickness direction of the display module;

[0017] The first protrusion is connected to the side of the first connecting portion away from the first front panel. The first protrusion extends in a direction away from the display module. The extension direction of the first protrusion is perpendicular to the plane where the first connecting portion is located. The first protrusion abuts against the inner wall of the slot.

[0018] The second connecting part is connected to the side of the first protrusion away from the first connecting part and extends in a direction away from the first front plate. The extending direction of the second connecting part is parallel to the plane where the first connecting part is located.

[0019] A second protrusion is connected to the side of the second connecting portion away from the first protrusion. The second protrusion extends towards the display module, and the angle between the extending direction of the second protrusion and the plane containing the first connecting portion is less than 90 degrees. In the thickness direction of the display module, the side of the second protrusion near the second connecting portion is located between the first front panel and the side of the second protrusion away from the second connecting portion; and

[0020] The third connecting part is connected to the side of the second protrusion away from the second connecting part, and the third connecting part is provided on the side of the display module;

[0021] The first protrusion, the second connecting portion, and the second protrusion form the buckle.

[0022] In one embodiment of this application, the card slot extends along a direction perpendicular to the thickness of the display module and penetrates the second side plate;

[0023] At least a portion of the buckle is located within the slot.

[0024] In one embodiment of this application, the display module includes:

[0025] The middle frame has a first side plate located on the periphery of the middle frame, and an accommodating cavity is formed inside the middle frame.

[0026] A first display panel is disposed within the accommodating cavity, and a first front plate overlaps the edge of the first display panel;

[0027] A second display panel is disposed within the receiving cavity, facing away from the first display panel, with the second front plate overlapping the edge of the second display panel; and

[0028] A backlight is located between the first display panel and the second display panel. The side of the backlight closer to the first display panel is the first emission surface, and the side of the backlight closer to the second display panel is the second emission surface.

[0029] Wherein, the side of the first display panel away from the second display panel is the first display surface, and the side of the second display panel away from the first display panel is the second display surface.

[0030] In one embodiment of this application, the middle frame includes:

[0031] The third side plate, wherein the first side plate is disposed on the periphery of the third side plate;

[0032] A first support plate is disposed on the side of the third side plate away from the first side plate. The first support plate and the first front plate are spaced apart along the thickness direction of the display module, forming a first accommodating space. The first display panel is disposed within the first accommodating space.

[0033] The second support plate is disposed on the side of the third side plate away from the first side plate. The second support plate and the second front plate are spaced apart along the thickness direction of the display module and form a second accommodating space. The second display panel is disposed in the second accommodating space. The second support plate is connected to the edge of the side of the second display panel away from the second front plate.

[0034] The backlight is located between the first support plate and the second support plate.

[0035] In one embodiment of this application, the display module further includes:

[0036] A first optical module is disposed within the first accommodating space and located on the side of the first display panel away from the first front panel; the first support plate overlaps the edge of the first optical module; and

[0037] The second optical module is disposed within the second accommodating space and located on the side of the second display panel away from the second front panel, and the second support plate overlaps the edge of the second optical module.

[0038] In one embodiment of this application, the middle frame further includes a third support plate, which is disposed on the side of the third side plate away from the first side plate. The third support plate is located between the first support plate and the second support plate, and the third support plate is connected to the edge of the backlight.

[0039] In one embodiment of this application, the backlight includes:

[0040] A circuit board is located between the first display panel and the second display panel;

[0041] Multiple first light-emitting units are disposed on the side of the circuit board near the first display panel and are electrically connected to the circuit board;

[0042] The first reflective layer is disposed on the side of the circuit board close to the first display panel and located outside the first light-emitting unit;

[0043] A plurality of second light-emitting units are disposed on the side of the circuit board near the second display panel and electrically connected to the circuit board; and

[0044] The second reflective layer is disposed on the side of the circuit board near the second display panel and located outside the second light-emitting unit.

[0045] In one embodiment of this application, the orthographic projection of the first light-emitting unit on the circuit board is located outside the orthographic projection of the second light-emitting unit on the circuit board.

[0046] In this application, the installation of the housing requires only two steps. First, the first front frame is inserted into the display module from one side of the first display surface. At this time, the first side panel is located on the side of the display module, and the first front panel overlaps the edge of the first display surface. Second, the second front frame is inserted into the display module from one side of the second display surface. At this time, the second side panel is located outside the first side panel, and the second front panel overlaps the edge of the second display surface. Compared to related technologies where the display module needs to be aligned with the inside of the housing for assembly, this application eliminates the need for alignment between the display module and the housing. Instead, the housing is divided into a first front frame and a second front frame, allowing for rapid assembly of the housing and display module from both the front and back of the display panel. This improves the assembly efficiency of the housing and, consequently, the production efficiency of the display device. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of an embodiment of the display device of this application;

[0048] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0049] Figure 3 yes Figure 1 Exploded view;

[0050] Figure 4 yes Figure 1 Another view of the display device shown;

[0051] Figure 5 yes Figure 4 Enlarged view of point B in the middle;

[0052] Figure 6 This is a cross-sectional view of an embodiment of the display device of this application;

[0053] Figure 7 This is a cross-sectional view of another embodiment of the display device of this application. Detailed Implementation

[0054] The terms used in this specification and claims have the meanings that are commonly understood by one of ordinary skill in the art to which this application pertains. The terms used in this specification and claims are for the purpose of facilitating the description and understanding of this application only, and are not intended to limit this application to the narrow interpretation of the specific terms used in the specification and claims.

[0055] Please see Figure 1 This application proposes a display device 100, which is a double-sided display device 100 and can be applied to public places, research and development sites and teaching sites, etc. No limitation is made on the application scenarios of the display device 100.

[0056] Please see Figure 2 The display device 100 includes a display module 10, a first front frame 20, and a second front frame 30. The display module 10 includes a first display surface 111 and a second display surface 121 that are disposed opposite to each other.

[0057] Please see Figure 3 The first front frame 20 includes a first side plate 21 and a first front plate 22 connected to each other. The first front plate 22 overlaps the edge of the first display surface 111. The first side plate 21 is disposed on the side of the display module 10.

[0058] Please see Figure 4 The second front frame 30 includes a second side plate 31 and a second front plate 32 connected to each other. See also... Figure 5 The second front panel 32 overlaps the edge of the second display surface 121.

[0059] Please see Figure 6 The second side plate 31 is located on the side of the first side plate 21 away from the display module 10 and is fixedly connected to the first side plate 21.

[0060] In this application, the installation of the housing requires only two steps. First, the first front frame 20 is inserted into the display module 10 from one side of the first display surface 111. At this time, the first side plate 21 is located on the side of the display module 10, and the first front plate 22 overlaps the edge of the first display surface 111. Second, the second front frame 30 is inserted into the display module 10 from one side of the second display surface 121. At this time, the second side plate 31 is located on the outside of the first side plate 21, and the second front plate 32 overlaps the edge of the second display surface 121. Compared to related technologies where the display module 10 needs to be aligned with the inside of the housing for assembly, this application eliminates the need for alignment between the display module 10 and the inside of the housing. Instead, the housing is divided into a first front frame 20 and a second front frame 30, allowing for rapid assembly of the housing and display module 10 from both the front and back of the display panel. This improves the assembly efficiency of the housing and, consequently, the production efficiency of the display device 100.

[0061] Optionally, the first side panel 21 and the second side panel 31 can be fixed by adhesive or bonding with glue.

[0062] Optionally, the first side plate 21 and the second side plate 31 can be detachably connected.

[0063] In this embodiment, the first side plate 21 and the second side plate 31 can be locked together by screws. Specifically, a through threaded hole is provided on the first side plate 21, and the screw passes through the second side plate 31 and is threaded into the threaded hole, thereby achieving a locking connection between the first side plate 21 and the second side plate 31. The screw can be replaced with a bolt or other structure.

[0064] In this embodiment, the first side plate 21 and the second side plate 31 can be detachably connected via a snap-fit ​​T1 structure. Alternatively, the first side plate 21 and the second side plate 31 can be detachably connected via a mortise and tenon structure. Or, the first side plate 21 and the second side plate 31 can be detachably connected via a magnetic structure. The specific method of detachable connection between the first side plate 21 and the second side plate 31 is not limited here.

[0065] Please see Figure 6 Optionally, one of the first side plate 21 and the second side plate 31 is provided with a buckle T1. The other of the first side plate 21 and the second side plate 31 is provided with a slot T2. The first side plate 21 and the second side plate 31 are connected by the buckle T1 and the slot T2.

[0066] In this embodiment, since the first side plate 21 and the second side plate 31 are respectively provided with a buckle T1 and a slot T2, when installing the housing, after the first front frame 20 is inserted into the display module 10 from one side of the first display surface 111, and then the second front frame 30 is inserted into the display module 10 from one side of the second display surface 121, the buckle T1 and the slot T2 on the first side plate 21 and the second side plate 31 are engaged, thereby fixing the first front frame 20 and the second front frame 30. There is no need to apply an additional adhesive layer or glue to fix the first front frame 20 and the second front frame 30, which improves the assembly efficiency of the housing and thus improves the production efficiency of the display device 100.

[0067] Please see Figure 6 Optionally, the first side plate 21 has a protruding buckle T1 on the side away from the display module 10. The second side plate 31 has a slot T2 on the side near the first side plate 21. The buckle T1 is engaged in the slot T2.

[0068] In this embodiment, when the buckle T1 is disposed on the first side plate 21 and the slot T2 is disposed on the second side plate 31, the buckle T1 and the slot T2 can form an exposed buckle structure. During assembly, the engagement of the buckle T1 and the slot T2 can be monitored externally, i.e., whether the buckle T1 is engaged in the slot T2 can be observed from outside the display device 100. When the buckle T1 is disposed on the side of the second side plate 31 closer to the first side plate 21 and the slot T2 is disposed on the side of the first side plate 21 closer to the second side plate 31, the buckle T1 and the slot T2 form a concealed buckle structure, and the engagement of the buckle T1 and the slot T2 cannot be monitored externally. Therefore, the exposed buckle structure of this embodiment facilitates monitoring the connection stability of the first side plate 21 and the second side plate 31, eliminating the need for subsequent testing of the connection stability of the first side plate 21 and the second side plate 31, thus improving assembly efficiency and consequently increasing the production efficiency of the display device 100.

[0069] Optionally, the buckle T1 is integrally formed with the first side plate 21.

[0070] In this embodiment, the first side plate 21 is made of metal or plastic. When the first side plate 21 is made of metal, a snap fastener T1 can be formed on the surface of the first side plate 21 by die casting. When the first side plate 21 is made of plastic, the snap fastener T1 can be formed on the surface of the first side plate 21 by integral injection molding.

[0071] Please see Figure 6 Optionally, the card slot T2 extends along the Y direction perpendicular to the thickness of the display module 10 and passes through the second side plate 31. At least a portion of the latch T1 is located within the card slot T2.

[0072] Optionally, the first side plate 21 includes a first connecting portion 211, a first protrusion 212, a second connecting portion 213, a second protrusion 214, and a third connecting portion 215.

[0073] The first connecting portion 211 is provided on the side of the display module 10 and connected to the first front panel 22. The first connecting portion 211 extends along the thickness direction Y of the display module 10.

[0074] The first protrusion 212 is connected to the side of the first connecting portion 211 away from the first front panel 22. The first protrusion 212 extends in a direction away from the display module 10. The extending direction of the first protrusion 212 is perpendicular to the plane where the first connecting portion 211 is located. The first protrusion 212 abuts against the inner wall of the card slot T2.

[0075] The second connecting portion 213 is connected to the side of the first protrusion 212 away from the first connecting portion 211, and extends in a direction away from the first front plate 22. The extending direction of the second connecting portion 213 is parallel to the plane where the first connecting portion 211 is located.

[0076] The second protrusion 214 is connected to the second connecting portion 213 on the side away from the first protrusion 212. The second protrusion 214 extends toward the display module 10. The angle between the extending direction of the second protrusion 214 and the plane containing the first connecting portion 211 is less than 90 degrees. In the thickness direction Y of the display module 10, the side of the second protrusion 214 near the second connecting portion 213 is located between the first front plate 22 and the side of the second protrusion 214 away from the second connecting portion 213.

[0077] The third connecting portion 215 is connected to the side of the second protrusion 214 away from the second connecting portion 213. The third connecting portion 215 is provided on the side of the display module 10.

[0078] The first protrusion 212, the second connecting portion 213, and the second protrusion 214 form a buckle T1.

[0079] In this embodiment, during the installation of the housing, after the first front frame 20 is inserted into the display module 10 from one side of the first display surface 111, and then the second front frame 30 is inserted into the display module 10 from one side of the second display surface 121, the second side plate 31 first contacts the second protrusion 214. Because the second protrusion 214 is inclined, it can push the second side plate 31 away from the display module 10, allowing the second side plate 31 to continue being inserted into the display module 10. When the second side plate 31 is in place, the buckle T1 protrudes into the slot T2, achieving a snap-fit ​​connection. At this time, the first protrusion 212 abuts against the inner wall of the slot T2, and the first protrusion 212 and the second front plate 32 limit the movement of the second side plate 31 relative to the first side plate 21 from both vertical and horizontal directions, thereby improving the stability of the connection between the first front frame 20 and the second front frame 30. This embodiment balances the assembly efficiency of the display device 100 with the stability of the housing connection, eliminating the need to test the connection stability of the first front frame 20 and the second front frame 30, thereby further improving the assembly efficiency of the housing and the production efficiency of the display device 100.

[0080] Please see Figure 6 Optionally, the display module 10 includes a middle frame 13, a first display panel 11, a second display panel 12, and a backlight 14.

[0081] The first side plate 21 is located on the periphery of the middle frame 13, and a receiving cavity is formed inside the middle frame 13.

[0082] The first display panel 11 is disposed within the accommodating cavity. The first front panel 22 overlaps the edge of the first display panel 11.

[0083] The second display panel 12 is disposed within the accommodating cavity and is positioned opposite to the first display panel 11. The second front panel 32 overlaps the edge of the second display panel 12.

[0084] The backlight 14 is located between the first display panel 11 and the second display panel 12. The side of the backlight 14 closest to the first display panel 11 is the first emission surface 141. The side of the backlight 14 closest to the second display panel 12 is the second emission surface 142.

[0085] The side of the first display panel 11 that is away from the second display panel 12 is the first display surface 111. The side of the second display panel 12 that is away from the first display panel 11 is the second display surface 121.

[0086] In this embodiment, the display module 10 achieves double-sided display through a first display panel 11 and a second display panel 12. The first display panel 11 and the second display panel 12 are liquid crystal display panels, and the backlight 14 has a first emission surface 141 and a second emission surface 142. The first emission surface 141 provides light to the first display panel 11, and the second emission surface 142 provides light to the second display panel 12. The middle frame 13 is used to assist in fixing the first display panel 11, the second display panel 12, and the backlight 14.

[0087] Please see Figure 6 Optionally, the middle frame 13 includes a third side plate 131, a first support plate 132, and a second support plate 133. The first side plate 21 is located around the third side plate 131.

[0088] The first support plate 132 is disposed on the side of the third side plate 131 away from the first side plate 21. The first support plate 132 and the first front plate 22 are spaced apart along the thickness direction Y of the display module 10, forming a first accommodating space Z1. The first display panel 11 is disposed within the first accommodating space Z1.

[0089] The second support plate 133 is disposed on the side of the third side plate 131 away from the first side plate 21. The second support plate 133 and the second front plate 32 are spaced apart along the thickness direction Y of the display module 10, forming a second accommodating space Z2. The second display panel 12 is disposed within the second accommodating space Z2. The edge of the second support plate 133 is connected to the edge of the second display panel 12 away from the second front plate 32.

[0090] The backlight 14 is located between the first support plate 132 and the second support plate 133.

[0091] In this embodiment, the first support plate 132 is connected to the third side plate 131, and together with the first front plate 22, limits the first display panel 11 on both sides in the thickness direction Y of the display module 10 to fix the first display panel 11. This improves the structural stability of the first display panel 11 in the display device 100.

[0092] Similarly, the second support plate 133 is connected to the third side plate 131, and together with the second front plate 32, limits the second display panel 12 on both sides in the thickness direction Y of the display module 10 to fix the second display panel 12. This improves the structural stability of the second display panel 12 in the display device 100.

[0093] To further improve the stability of the connection of the first display panel 11, the edge of the first display panel 11 can be bonded to at least one of the first front panel 22 and the first support plate 132. Similarly, to improve the stability of the connection of the second display panel 12, the edge of the second display panel 12 can be bonded to at least one of the second front panel 32 and the second support plate 133.

[0094] Please see Figure 6 The backlight 14 can be fixed by limiting the position of the backlight 14 on both sides of the thickness direction Y of the display module 10 through the first support plate 132 and the second support plate 133.

[0095] Please see Figure 7 Optionally, the middle frame 13 also includes a third support plate 134. The third support plate 134 is located on the side of the third side plate 131 away from the first side plate 21. The third support plate 134 is located between the first support plate 132 and the second support plate 133. The third support plate 134 is connected to the edge of the backlight 14.

[0096] In this embodiment, the design of the third support plate 134 reduces the overall material usage of the middle frame 13, thereby lowering its cost. The backlight 14 can be connected to the third support plate 134 via adhesive bonding, screw tightening, or snap-fit ​​T1 connection. This embodiment allows adjustment of the distance between the backlight 14 and the first display panel 11 and the second display panel 12, thereby controlling the optical path of the light emitted from the backlight 14 to the display panel and improving the display effect.

[0097] Optionally, the middle frame 13 can be integrally molded by injection molding.

[0098] Please see Figure 7 Optionally, the display module 10 may also include a first optical module 15 and a second optical module 16.

[0099] The first optical module 15 is disposed within the first accommodating space Z1 and is located on the side of the first display panel 11 away from the first front panel 22. The first support plate 132 overlaps the edge of the first optical module 15.

[0100] The second optical module 16 is disposed within the second accommodating space Z2 and is located on the side of the second display panel 12 away from the second front panel 32. The second support plate 133 overlaps the edge of the second optical module 16.

[0101] In this embodiment, the first optical module 15 includes at least a diffuser plate, and may also be a stacked structure of a diffuser plate and an optical film. Similarly, the second optical module 16 includes at least a diffuser plate, and may also be a stacked structure of a diffuser plate and an optical film. The first optical module 15 and the second optical module 16 can improve the display effect of the display device 100.

[0102] Please see Figure 7Optionally, the backlight 14 includes a circuit board 143, a plurality of first light-emitting units 144, a first reflective layer 145, a plurality of second light-emitting units 146, and a second reflective layer 147. The circuit board 143 is located between the first display panel 11 and the second display panel 12.

[0103] Multiple first light-emitting units 144 are disposed on the side of the circuit board 143 near the first display panel 11 and are electrically connected to the circuit board 143. A first reflective layer 145 is disposed on the side of the circuit board 143 near the first display panel 11 and is located outside the first light-emitting units 144.

[0104] Multiple second light-emitting units 146 are disposed on the side of the circuit board 143 near the second display panel 12 and are electrically connected to the circuit board 143. A second reflective layer 147 is disposed on the side of the circuit board 143 near the second display panel 12 and is located outside the second light-emitting units 146.

[0105] In this embodiment, a first emission surface 141 is formed on one side of the circuit board 143 where a plurality of first light-emitting units 144 are located. A second emission surface 142 is formed on one side of the circuit board 143 where a plurality of second light-emitting units 146 are located.

[0106] The first reflective layer 145 can be a white reflective layer or a reflective sheet, used to improve the light utilization rate of the first emitting surface 141.

[0107] The second reflective layer 147 can be a white reflective layer or a reflective sheet, used to improve the light utilization rate of the second emitting surface 142. Among them, the white reflective layer is less expensive than the reflective sheet.

[0108] Please see Figure 7 Optionally, the orthographic projection of the first light-emitting unit 144 on the circuit board 143 is located outside the orthographic projection of the second light-emitting unit 146 on the circuit board 143.

[0109] In this embodiment, the staggered arrangement of the first light-emitting unit 144 and the second light-emitting unit 146 in the thickness direction Y of the display module 10 can prevent local overheating of the circuit board 143 from affecting the normal light emission of the backlight 14. On the other hand, it can improve the overall heat dissipation efficiency of the circuit board 143.

[0110] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A display device, characterized in that, include: The display module includes a first display surface and a second display surface that are positioned opposite each other. A first front frame, the first front frame includes a first side plate and a first front plate connected together, the first front plate overlaps the edge of the first display surface, and the first side plate is disposed on the side of the display module; as well as The second front frame includes a second side plate and a second front plate connected together. The second front plate overlaps the edge of the second display surface. The second side plate is located on the side of the first side plate away from the display module and is fixedly connected to the first side plate.

2. The display device as claimed in claim 1, characterized in that, The first side plate and the second side plate are detachably connected.

3. The display device as claimed in claim 1, characterized in that, One of the first side plate and the second side plate is provided with a buckle, and the other of the first side plate and the second side plate is provided with a slot. The first side plate and the second side plate are connected by the buckle and the slot.

4. The display device as claimed in claim 3, characterized in that, The first side plate has a protruding buckle on the side away from the display module, and the second side plate has a slot on the side close to the first side plate, and the buckle is engaged in the slot. The buckle is integrally formed with the first side plate.

5. The display device as claimed in claim 4, characterized in that, The first side panel includes: A first connecting portion is disposed on the side of the display module and connected to the first front panel, and the first connecting portion extends along the thickness direction of the display module; The first protrusion is connected to the side of the first connecting portion away from the first front panel. The first protrusion extends in a direction away from the display module. The extension direction of the first protrusion is perpendicular to the plane where the first connecting portion is located. The first protrusion abuts against the inner wall of the slot. The second connecting part is connected to the side of the first protrusion away from the first connecting part and extends in a direction away from the first front plate. The extending direction of the second connecting part is parallel to the plane where the first connecting part is located. A second protrusion is connected to the side of the second connecting portion away from the first protrusion. The second protrusion extends towards the display module, and the angle between the extending direction of the second protrusion and the plane containing the first connecting portion is less than 90 degrees. In the thickness direction of the display module, the side of the second protrusion near the second connecting portion is located between the first front panel and the side of the second protrusion away from the second connecting portion; and The third connecting part is connected to the side of the second protrusion away from the second connecting part, and the third connecting part is provided on the side of the display module; The first protrusion, the second connecting portion, and the second protrusion form the buckle.

6. The display device as claimed in claim 4, characterized in that, The card slot extends along the thickness direction perpendicular to the display module and penetrates the second side plate; At least a portion of the buckle is located within the slot.

7. The display device as claimed in any one of claims 1-6, characterized in that, The display module includes: The middle frame has a first side plate located on the periphery of the middle frame, and an accommodating cavity is formed inside the middle frame. A first display panel is disposed within the accommodating cavity, and a first front plate overlaps the edge of the first display panel; A second display panel is disposed within the receiving cavity, facing away from the first display panel, with the second front plate overlapping the edge of the second display panel; and A backlight is located between the first display panel and the second display panel. The side of the backlight closer to the first display panel is the first emission surface, and the side of the backlight closer to the second display panel is the second emission surface. Wherein, the side of the first display panel away from the second display panel is the first display surface, and the side of the second display panel away from the first display panel is the second display surface.

8. The display device as claimed in claim 7, characterized in that, The middle frame includes: The third side plate, wherein the first side plate is disposed on the periphery of the third side plate; A first support plate is disposed on the side of the third side plate away from the first side plate. The first support plate and the first front plate are spaced apart along the thickness direction of the display module, forming a first accommodating space. The first display panel is disposed within the first accommodating space. The second support plate is disposed on the side of the third side plate away from the first side plate. The second support plate and the second front plate are spaced apart along the thickness direction of the display module and form a second accommodating space. The second display panel is disposed in the second accommodating space. The second support plate is connected to the edge of the side of the second display panel away from the second front plate. The backlight is located between the first support plate and the second support plate.

9. The display device as claimed in claim 8, characterized in that, The display module also includes: A first optical module is disposed within the first accommodating space and located on the side of the first display panel away from the first front panel; the first support plate overlaps the edge of the first optical module; and The second optical module is disposed within the second accommodating space and located on the side of the second display panel away from the second front panel, and the second support plate overlaps the edge of the second optical module.

10. The display device as claimed in claim 8, characterized in that, The middle frame also includes a third support plate, which is disposed on the side of the third side plate away from the first side plate. The third support plate is located between the first support plate and the second support plate, and the third support plate is connected to the edge of the backlight.

11. The display device as claimed in claim 7, characterized in that, The backlight includes: A circuit board is located between the first display panel and the second display panel; Multiple first light-emitting units are disposed on the side of the circuit board near the first display panel and are electrically connected to the circuit board; The first reflective layer is disposed on the side of the circuit board close to the first display panel and located outside the first light-emitting unit; A plurality of second light-emitting units are disposed on the side of the circuit board near the second display panel and electrically connected to the circuit board; and The second reflective layer is disposed on the side of the circuit board near the second display panel and located outside the second light-emitting unit.

12. The display device as claimed in claim 11, characterized in that, The orthographic projection of the first light-emitting unit on the circuit board is located outside the orthographic projection of the second light-emitting unit on the circuit board.

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