Display device

Abstract

The application provides a display device, comprising a display screen and a USB interface assembly, the USB interface assembly comprising a box, a cover plate and a USB interface piece, the box having an opening facing the outside of the display screen, the cover plate being hingedly arranged on the opening and the box and the cover plate jointly forming a containing cavity, the USB interface piece being arranged on the cover plate and being exposed outside the containing cavity when the cover plate is opened or being accommodated in the containing cavity when the cover plate is closed. The display device provided by the application can realize hidden arrangement of an external data storage device.

Description

Technical Field

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

[0002] Currently, large educational display screens are located on the back of blackboards that can be moved left and right. When in use, the blackboard can be moved to the sides to reveal the display screen in the middle.

[0003] To facilitate data transmission during teaching, existing educational display screens typically have a Universal Serial Bus (USB) interface on the bottom bezel. The USB interface is usually located on the front or side of the screen, allowing data storage devices such as USB flash drives and external hard drives to be inserted into the USB interface from the front or side of the screen. When an external data storage device is inserted, it is exposed and protrudes outside the screen.

[0004] With the USB interface configured as described above, the protruding data storage device will obstruct the movement of the blackboard when it is moved to the left or right. In addition, the instructor may also bump into the data storage device when moving around on the platform, which may cause damage to the data storage device or the USB interface. Summary of the Invention

[0005] This application provides a display device that enables the hiding of external data storage devices.

[0006] The display device provided in this application includes a display screen and a Universal Serial Bus (USB) interface assembly. The USB interface assembly includes a housing, a cover, and a USB interface device. The housing has an opening facing the outside of the display screen, and the cover is closable and covers the opening. The housing and the cover together form a receiving cavity. The USB interface device is disposed on the cover and can be exposed outside the receiving cavity when the cover is opened, or housed inside the receiving cavity when the cover is closed.

[0007] As an optional implementation, the opening is located on the outer end face of the cabinet facing the outside of the display screen. The cover is rotatably connected to the cabinet, and when the cover is closed, the outer wall of the cover and the outer end face of the cabinet are in contact or flush.

[0008] As an alternative implementation, one end of the cover plate is hinged to the housing via a hinge shaft, while the other end of the cover plate is a free end, and the USB interface is located on the inner wall of the cover plate.

[0009] As an optional implementation, the display device includes a first elastic element connected between the cover plate and the housing, and the elastic force of the first elastic element is directed in the direction in which the cover plate opens.

[0010] As an optional implementation, the display device further includes a locking component, which includes a hook and a buckle. One of the hook and the buckle is fixed to the cover plate, and the other is fixed to the housing. The hook and the buckle can engage with each other to secure the cover plate when it is closed.

[0011] As an optional implementation, the hook is provided on the cover plate. The hook includes a connecting part connected to the side edge of the cover plate and a hook provided on the connecting part. One end of the hook is connected to the connecting part, and the other end extends along the rotation axis of the cover plate.

[0012] As an optional implementation, the fastener has a body extending in a direction perpendicular to the rotation axis of the cover plate, and the body has a groove that matches the hook. When the cover plate is closed, the hook extends into the groove.

[0013] The end of the hook facing the cover plate has a stop. When the stop and the hook abut against each other, the hook and the fastener engage with each other.

[0014] As an alternative implementation, the fastener can move relative to the housing along the rotation axis of the cover plate;

[0015] The fastener also includes a guide portion connected to the body. The guide portion is located on the side of the hook groove away from the stop portion. When the hook extends into the hook groove and abuts against the guide portion, the hook pushes the fastener away along the side away from the hook, so that the fastener and the hook are disengaged.

[0016] As an alternative implementation, the surface of the guide facing the hook is an arc-shaped surface or a slope; and / or, the end of the hook has an arc-shaped surface.

[0017] As an optional implementation, the locking assembly further includes a second elastic element disposed between the housing and the latching element, with the elastic force of the second elastic element pointing towards the latching element.

[0018] This application provides a display device including a display screen and a USB interface assembly. The USB interface assembly includes a housing, a cover, and a USB interface device. The housing has an opening facing outwards from the display screen. The cover is closable and covers the opening, and the housing and cover together form a receiving cavity. The USB interface device is disposed on the cover and can be exposed outside the receiving cavity when the cover is opened, or housed inside the receiving cavity when the cover is closed. The display device provided by this application enables the concealed installation of external data storage devices. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A schematic diagram of the overall structure of a USB interface assembly of a display device in the open state, according to an embodiment of this application;

[0021] Figure 2 An exploded view of a USB interface assembly of a display device provided in an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the structure of a hook component provided in one embodiment of this application;

[0023] Figure 4 This is a schematic diagram of the structure of a snap fastener provided in one embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of a second elastic member provided in an embodiment of this application;

[0025] Figure 6 This is a front view of the USB interface assembly of a display device provided in an embodiment of the present application with the cover closed.

[0026] Figure 7 This is a rear view of the USB interface assembly of a display device provided in an embodiment of this application with the cover closed.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Display device; 11-USB interface assembly; 111-Housing; 1122-Inner housing; 1124-Outer housing; 112-Cover plate; 113-USB interface component; 114-Hinge shaft; 115-Connecting hole; 116-Protrusion; 117-First elastic component; 12-Locking assembly; 121-Hook component; 1212-Connecting part; 1214-Hook; 122-Snap fastener; 1222-Body; 1224-Hook groove; 1226-Stop part; 1228-Guide part; 123-Second elastic component; 124-Fixing frame; 2-Data storage device. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] To facilitate data transmission, current educational display screens all have USB ports on the bottom bezel. When external data storage devices are plugged into the USB port, they protrude from the front of the screen, making them susceptible to damage from impacts.

[0031] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems are described in detail below with specific embodiments. It should be noted that the following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0032] In view of the above problems, this application provides a display device including a USB interface assembly. This USB interface assembly includes a housing and a USB interface component, with the USB interface component concealed within the housing. The housing has an opening with an openable and closable cover. Furthermore, a locking assembly is provided within the housing, including a latch and a hook, which engage to secure the cover when closed. This technical solution, by concealing the USB interface component within the housing and using a closed cover, avoids the risk of impact when an external data storage device is inserted and protrudes beyond the screen. It also makes the display device more aesthetically pleasing. The specific embodiments of this application will be described in detail below.

[0033] Figure 1 A schematic diagram of the overall structure of a USB interface component of a display device in the open state, provided in an embodiment of this application; Figure 2 This is an exploded view of a USB interface assembly of a display device according to an embodiment of this application. Figures 1-2As shown, the display device 1 provided in this application includes a display screen (not shown) and a USB interface assembly 11. The USB interface assembly 11 includes a housing 111, a cover plate 112 and a USB interface 113. The housing 111 has an opening facing the outside of the display screen. The cover plate 112 is closable and covers the opening. The housing 111 and the cover plate 112 together form a receiving cavity. The USB interface 113 is disposed on the cover plate 112 and can be exposed outside the receiving cavity when the cover plate 112 is opened, or be received inside the receiving cavity when the cover plate 112 is closed.

[0034] The USB interface 113 described above is used to connect various data storage devices such as USB flash drives, portable hard drives, and mobile phones. The contents of the data storage devices can be displayed on the screen through this USB interface 113. It is understood that the USB interface 113 can also be set in other locations within the housing cavity, such as on the inner wall of the housing 111. However, placing the USB interface 113 on the cover 112 makes it easier to insert or access the data storage device 2, and also simplifies the space design.

[0035] By providing the aforementioned display device 1, the USB interface 113 is housed within the receiving cavity, thus achieving a hidden design for the external data storage device 2. This prevents the data storage device 2 from protruding from the screen and being damaged by impacts. At the same time, the USB interface 113 is housed within the receiving cavity and closed by the cover plate 112, which makes the appearance more aesthetically pleasing and also prevents the USB interface 113 from being impacted or falling into dust, thus extending the service life of the USB interface.

[0036] It should be noted that the aforementioned box 111 refers to a single, integral box structure; the specific structure of box 111 can include many variations. For example... Figure 2 As shown, for example, this housing 111 may include a double-layer structure of an outer housing 1124 and an inner housing 1122. The outer housing 1124 has a receiving cavity, and the inner housing 1122 has a drawer-type structure. The inner housing 1122 is housed within the receiving cavity of the outer housing 1124. Both the inner housing 1122 and the outer housing 1124 have openings facing outwards from the display screen, with the opening directions being consistent. A cover 112 is closable and can be placed over the opening of the inner housing 1122. Of course, the specific structure of the housing 111 can include many other variations, but any simple modifications based on this solution belong to the same inventive concept as this application. This double-layer structure of the housing 111 allows the outer housing 1124 to be designed according to the style of the display screen. Since the inner housing 1122 is directly hidden within the receiving cavity of the outer housing 1124, there are no strict requirements on its appearance, thus improving the versatility of the USB interface component 11.

[0037] In one possible implementation, the opening is located on the outer end face of the housing 111 facing the outside of the display screen, the cover plate 112 is rotatably connected to the housing 111, and when the cover plate 112 is closed, the outer wall of the cover plate 112 is in contact with or flush with the outer end face of the housing 111.

[0038] The above-mentioned setting of the opening of the cabinet 111 on the outer end face of the cabinet 111 facing the outside of the display screen means that the position of the opening and the display screen are set on the same plane. When the cover 112 is closed, the outer wall of the cover 112 should also be on the same horizontal plane as the display screen. This arrangement will make the appearance of the display device 1 more neat and beautiful.

[0039] Of course, the opening of the housing 111 and the display screen do not have to be on the same plane. For example, the opening of the housing 111 can be placed inside the screen, in which case the USB interface component 11 is less likely to be impacted. The position of the cover 112 can also be reasonably adjusted. For example, the cover 112 can be placed inside the outer end face of the housing 111. When the cover 112 is closed, the outer wall of the cover 112 is also located inside the outer end face of the housing 111. No special limitation is made here.

[0040] The cover plate 112 and the housing 111 are rotatably connected, such as Figures 1-2 As shown, one end of the selectable cover plate 112 is hinged to the housing 111 via a hinge shaft 114, and the other end of the cover plate 112 is a free end. The USB interface component 113 is fixed to the inner wall of the cover plate 112.

[0041] like Figure 2 As shown, for example, connecting holes 115 can be made at the two ends of the cover plate 112 and the two ends of the housing 111, respectively. The hinge shaft 114 is inserted into the connecting holes 115, thereby fixing one end of the cover plate 112 to the housing 111, while the other end is a free end, allowing the cover plate 112 to rotate and open relative to the housing 111. The specific location of the connecting holes 115 on the cover plate 112 can be, for example, by providing two protrusions 116 on the inner wall of the cover plate 112, with connecting holes 115 made on the protrusions 116, corresponding to and matching the connecting holes 115 on the housing 111.

[0042] In another implementation, continue to refer to Figures 1-2 The display device 1 provided in this application also includes a first elastic member 117, which is connected between the cover plate 112 and the housing 111, and the elastic force of the first elastic member 117 points in the direction of opening of the cover plate 112.

[0043] Optionally, the first elastic element can be a torsion spring. The number of torsion springs can be selected according to the needs. For example, one can be set at each end of the cover plate 112. The torsion spring can be passed through the hinge shaft 114 to provide a pushing force for opening the cover plate 112.

[0044] In yet another possible implementation, such as Figures 1-2 As shown, the display device 1 provided in this application also includes a locking assembly 12, which includes a hook 121 and a latch 122. One of the hook 121 and the latch 122 is fixed to the cover plate 112, and the other is correspondingly fixed to the housing 111. The hook 121 and the latch 122 can engage with each other to fix the cover plate 112 when it is closed. That is, the closing of the cover plate 112 is achieved by the interlocking force of the hook 121 and the latch 122, while the opening of the cover plate 112 is achieved by the rotation of the hinge shaft 114 and the force of the first elastic member 117.

[0045] Figure 3 This is a schematic diagram of the structure of a hook component provided in one embodiment of this application; Figure 4 This is a schematic diagram of the structure of a snap fastener provided in one embodiment of this application; Figure 5 This is a schematic diagram of the structure of a second elastic member provided in an embodiment of this application.

[0046] Based on the aforementioned locking component 12, in one specific embodiment, such as Figures 1-3 As shown, the hook 121 is provided on the cover plate 112. The hook 121 includes a connecting part 1212 connected to the side edge of the cover plate 112 and a hook 1214 provided on the connecting part 1212. One end of the hook 1214 is connected to the connecting part 1212, and the other end extends along the rotation axis of the cover plate 112.

[0047] Regarding the specific structure of the connecting part 1212, in one possible case, such as Figures 2-3 As shown, the connecting part 1212 can be a fan-shaped sheet structure. One straight edge of the fan-shaped sheet is fixed to the side edge of the cover plate 112. A hook 1214 is provided at the end of the fan-shaped sheet away from the cover plate 112. The hook 1214 protrudes from the plane of the fan-shaped sheet and extends along the rotation axis of the cover plate 112. The hook 1214 can be integrally formed with the fan-shaped surface, or it can be additionally provided by means of bonding, welding, snap-fitting, etc., without specific limitations. Of course, the shape of the connecting part 1212 is not limited to a fan shape. Various other shapes can be selected, as long as they do not interfere with the housing 111 during the movement of the cover plate 112.

[0048] For the structure of the snap fastener, such as Figure 4As shown, in an optional embodiment, the above-mentioned fastener 122 has a body 1222 extending in a direction perpendicular to the rotation axis of the cover plate 112, and the body 1222 is provided with a groove 1224 that matches the hook 1214. When the cover plate 112 is closed, the hook 1214 extends into the groove 1224. The end of the groove 1224 facing the cover plate 112 has a stop portion 1226. When the stop portion 1226 and the hook 1214 abut, the hook 121 and the fastener 122 engage with each other.

[0049] The aforementioned stop portion 1226 is a protruding structure on the buckle 122. This stop portion 1226 is used to block the buckle and prevent the hook 1214 from coming out of the hook groove 1224 when it is engaged.

[0050] By setting the latching parts 122 and 121 to engage, the cover 112 can be closed, hiding the USB interface component 11 in the cavity formed by the housing 111 and the cover 112. This makes the display device 1 look more aesthetically pleasing, and at the same time, the data storage device will not protrude from the outside of the screen, avoiding the possibility of being hit, and also avoiding the possibility of the data storage device hitting the user.

[0051] Furthermore, such as Figure 5 As shown, the aforementioned fastener 122 can move relative to the housing 111 along the rotation axis of the cover plate 112 (e.g., Figure 5 (in the direction indicated by the middle arrow); such as Figure 4 As shown, the fastener 122 also includes a guide portion 1228 connected to the body 1222. The guide portion 1228 is located on the side of the hook groove 1224 away from the stop portion 1226. When the hook 1214 extends into the hook groove 1224 and abuts against the guide portion 1228, the hook 1214 pushes the fastener 122 away along the side away from the hook 121, so that the fastener 122 and the hook 121 disengage.

[0052] Understandably, when the hook 1214 and the fastener 122 are engaged, the hook 1214 is located in the groove 1224 between the stop 1226 and the guide 1228, and simultaneously abuts against the stop 1226. When the cover 112 is pushed further, the hook 121 continues to move toward the guide 1228, and the hook 1214 gradually moves away from the stop 1226 and contacts the guide 1228. As the hook 121 continues to move, it abuts against the guide 1228 and provides a pushing force to the guide 1228, thereby causing the fastener 122 to move along the side away from the fastener, causing the fastener 122 and the hook 121 to disengage, and the cover 112 can then be opened.

[0053] To better facilitate the disengagement of the latch 122 from the hook 1214, in another possible embodiment, the side surface of the guide portion 1228 facing the hook 1214 is configured as an arc-shaped surface or a slope; and / or, the end of the hook 1214 has an arc-shaped surface. That is, at least one of the side surface of the guide portion 1228 facing the hook 1214 and the end of the hook 1214 has a surface that facilitates relative sliding between the guide surface and the hook 1214. When both the side surface of the guide portion 1228 facing the hook 1214 and the end of the hook 1214 are configured as surfaces that facilitate relative sliding, the sliding effect will be better. Generally, the side surface of the guide portion 1228 facing the hook 1214 is selected to be an arc-shaped surface or a slope, and the end of the hook 1214 can be configured as an arc-shaped surface. However, in practice, other structural surfaces that can achieve relative sliding can also be selected. Only some embodiments are listed here, but in actual use, this method is not limited to.

[0054] Regarding the implementation of the aforementioned fastener 122 moving relative to the housing 111 along the rotation axis of the cover plate 112, in one possible embodiment, refer to... Figure 2 and Figure 5 Optionally, a second elastic element 123 can be provided in the locking component 12, such that the second elastic element 123 is located between the housing 111 and the buckle 122, and the elastic force of the second elastic element 123 points towards the hook 121.

[0055] The second elastic element 123 provides elastic force to the latching element 122 towards the hook element 121, so that the hook 1214 needs to resist this elastic force when entering the hook groove 1224. After the hook 1214 enters the hook groove 1224, the hook 1214 is firmly abutted against the stop part 1226 under the action of this elastic force, so as to prevent the hook 1214 from loosening and disengaging on its own, which would cause the cover plate 112 to fail to close. On the other hand, when the hook 1214 pushes the guide part 1228, the latching element 122 will move relative to the box body 111 along the rotation axis of the cover plate 112, causing the second elastic element 123 to be compressed. When the hook 1214 completely disengages from the latching element 122 and returns to its original position, the latching element 122 returns to the position before being pushed under the action of the elastic force of the second elastic element 123, so as to ensure the normal operation of the latching element 122 next time.

[0056] Possibly, the second elastic element 123 mentioned above can be a torsion spring. Regarding the specific installation method of the torsion spring, for example... Figure 5 As shown, a rotating shaft can be installed inside the housing 111. This rotating shaft can rotate relative to the housing 111. The fastener 122 and the torsion spring can both be installed on this rotating shaft, and the fastener 122 can rotate relative to this rotating shaft.

[0057] A fixing bracket 124 can also be installed inside the housing 111, such as... Figure 5 As shown, both the mounting bracket 124 and the housing 111 have through holes on their walls, and the aforementioned rotating shaft passes through these through holes. One end of the aforementioned torsion spring can abut against the mounting bracket 124, and the other end can be fixed to the buckle 122, providing the buckle 122 with elastic force toward the hook 121. This mounting bracket 124 facilitates the fixing of the rotating shaft and the torsion spring.

[0058] Of course, the above is only one possible installation method. Other installation methods that can achieve the same effect, are simple replacements, or have the same conceptual principle are all covered within the scope of protection of this application.

[0059] By setting the second set of elastic elements, the cooperation between the hook 121 and the buckle 122 can be ensured, so as to realize the normal opening and closing function of the cover plate 112.

[0060] The opening and closing principle of the USB interface component 11 of the display device 1 provided in this application will be described in detail below.

[0061] Assuming the cover 112 of the USB interface assembly 11 is initially in the open state, the data storage device 2 can be inserted into the USB interface assembly 113. Then, gently press the cover 112. Under the action of external force, the cover 112 will cause the latch 121 to move in the correct position. Figure 1 As shown in the arc motion, when the hook 1214 overcomes the squeezing force of the fastener 122 and enters the hook groove 1224, it can abut and fix with the stop part 1226 of the fastener 122. At this time, the cover plate 112 is in the closed state. Figure 6 A front view of the USB interface assembly 11 of a display device provided in an embodiment of this application with the cover plate 112 closed; Figure 7 This is a rear view of the USB interface assembly 11 of a display device provided in an embodiment of this application with the cover 112 closed. At this time, the data storage device 2 is hidden in the receiving cavity formed by the housing 111 and the cover 112.

[0062] When the cover plate 112 is pressed down slightly again, the hook 121 moves toward the guide portion 1228 of the fastener 122. The hook 1214 gradually moves away from the stop portion 1226 and toward the guide portion 1228 until it comes into contact with the guide portion 1228. The hook 1214 continues to move and press the guide portion 1228. Due to the relative sliding contact between the hook 1214 and the guide portion 1228, a continuous squeezing force is generated on the guide portion 1228 as the hook 1214 slides to one side of the guide portion 1228. This causes the fastener 122 to move along the axial direction of the cover plate 112 until the hook 1214 is completely disengaged from the groove 1224. After that, the external force stops, the hook 121 returns to its original state, and the fastener 122 returns to its original position under the action of the second elastic member 123. At this time, the cover plate 112 opens again.

[0063] Through the above process, the cover plate 112 completes the process of going from open to closed to open again.

[0064] This application provides a display device 1, including a display screen and a USB interface assembly 11. The USB interface assembly 11 includes a housing 111, a cover plate 112, and a USB interface 113. The housing 111 has an opening facing outwards from the display screen. The cover plate 112 is closable and covers the opening, and the housing 111 and the cover plate 112 together form a receiving cavity. The USB interface 113 is disposed on the cover plate 112 and can be exposed outside the receiving cavity when the cover plate 112 is opened, or housed inside the receiving cavity when the cover plate 112 is closed. The display device 1 provided by this application enables the hidden installation of an external data storage device 2.

[0065] The terms "upper" and "lower" are used to describe the relative positions of the various structures in the accompanying drawings. They are only for clarity of description and are not intended to limit the scope of the invention. Any changes or adjustments to the relative positions without substantially altering the technical content should also be considered as part of the scope of the invention.

[0066] It should be noted that, in this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0067] Furthermore, in this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A display device, characterized by comprising: The display screen and the USB interface assembly are provided, the USB interface assembly comprises a box, a cover plate and a USB interface piece, the box has an opening towards the outside of the display screen, the opening is arranged on the outer end surface of the box towards the outside of the display screen, the cover plate is rotatably connected with the box, the cover plate is openable and closable to cover the opening, and the box and the cover plate jointly enclose a containing cavity, the USB interface piece is arranged on the inner wall of the cover plate and can be exposed outside the containing cavity when the cover plate is opened or can be accommodated in the containing cavity when the cover plate is closed; and when the cover plate is closed, the outer wall of the cover plate and the outer end surface of the box are flush or flush.

2. The display device according to claim 1, wherein One end of the cover plate and the box are hinged through a hinge shaft, and the other end of the cover plate is a free end.

3. The display device according to claim 2, wherein A first elastic member is further arranged between the cover plate and the box, and the elastic force direction of the first elastic member is directed to the opening direction of the cover plate.

4. A display device according to any one of claims 1-3, characterized in that A locking assembly is further provided, the locking assembly comprises a hook piece and a buckle piece, one of the hook piece and the buckle piece is fixed on the cover plate, and the other is correspondingly fixed on the box, and the hook piece and the buckle piece can be engaged with each other to fix the cover plate when the cover plate is closed.

5. The display device according to claim 4, wherein The hook piece is arranged on the cover plate, the hook piece comprises a connecting portion connected to the side edge of the cover plate and a hook arranged on the connecting portion, one end of the hook is connected to the connecting portion, and the other end extends along the rotation axis direction of the cover plate.

6. The display device according to claim 5, wherein The buckle piece has a body extending in the direction perpendicular to the rotation axis of the cover plate, and the body is provided with a hook groove matched with the hook, and when the cover plate is closed, the hook extends into the hook groove; The end of the hook groove towards the cover plate has a stop portion, and when the stop portion and the hook abut, the hook piece and the buckle piece are engaged with each other.

7. The display device according to claim 6, wherein The buckle piece can move relative to the box along the rotation axis direction of the cover plate; The buckle piece further comprises a guide portion connected to the body, the guide portion is located on the side of the hook groove away from the stop portion, and when the hook extends into the hook groove and abuts against the guide portion, the hook pushes the buckle piece away from the side of the hook piece to make the buckle piece and the hook piece disengage.

8. The display device according to claim 7, wherein The side surface of the guide portion facing the hook is an arc surface or an inclined surface; and / or, the end of the hook has an arc surface.

9. The display device according to claim 7, wherein The locking assembly further comprises a second elastic member arranged between the box and the buckle piece, and the elastic force of the second elastic member is directed towards the hook piece.

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