Display device

By designing the front and middle frames of the display device that can be detachably connected, the problem of inconvenient disassembly and assembly of the display device in the prior art is solved, and a more convenient maintenance and repair process is achieved.

CN120044719APending Publication Date: 2025-05-27BOE TECHNOLOGY GROUP CO LTD
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Patent Information

Application Number
CN202311585079.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-11-24
Publication Date
2025-05-27

AI Technical Summary

Technical Problem

There is a problem of inconvenience in disassembly and assembly during the disassembly and assembly process of existing display devices.

Method used

A display device including a front frame, a middle frame, a display module, a rear case and a driving component is designed. The front frame and a middle frame can be detached and connected, simplifying the disassembly and assembly process.

Benefits of technology

Through this design, the disassembly and assembly process of the display device is significantly simplified, making it easier to maintain and repair.

✦ Generated by Eureka AI based on patent content.

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Abstract

A display device includes: a front frame including a cover plate having a first light transmitting portion; the middle frame is arranged opposite to the cover plate, and a first accommodating part is defined by the middle frame and the front frame; the display module is arranged in the first accommodating part; the display module comprises a display area opposite to the first light transmitting part; the rear shell is arranged on one side, far away from the cover plate, of the middle frame, and a second accommodating part is defined by the rear shell and the middle frame; the driving assembly is located in the second containing part, and the driving assembly is electrically connected with the display module and used for providing a display driving signal for the display module; wherein the middle frame is detachably connected with the front frame and the rear shell.
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Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and more particularly, to a display device. Background Art

[0002] During the maintenance of a display device, it is necessary to disassemble the display device, but currently, the display devices generally have the problem of inconvenient disassembly and assembly. Summary of the Invention

[0003] The present disclosure aims to at least solve one of the technical problems existing in the prior art, and provides a display device.

[0004] To achieve the above object, the present disclosure provides a display device, including:

[0005] A front frame, the front frame including a cover plate having a first light-transmitting portion;

[0006] A middle frame, disposed opposite to the cover plate, and defining a first accommodating portion together with the front frame;

[0007] A display module, disposed in the first accommodating portion; the display module including a display area opposite to the first light-transmitting portion;

[0008] A rear shell, disposed on a side of the middle frame away from the cover plate, and defining a second accommodating portion together with the middle frame;

[0009] A driving component, located in the second accommodating portion, the driving component being electrically connected to the display module for providing a display driving signal to the display module;

[0010] Wherein, the middle frame is detachably connected to both the front frame and the rear shell.

[0011] In some embodiments, the front frame further includes a front frame side wall, the front frame side wall being connected to the cover plate;

[0012] The middle frame includes: a support wall and a middle frame side wall connected to the support wall, the support wall being disposed opposite to the cover plate; the middle frame side wall surrounds the support wall, and defines the first accommodating portion together with the support wall and the front frame, and defines the second accommodating portion together with the support wall and the rear shell;

[0013] Wherein, the middle frame side wall is detachably connected to both the front frame side wall and the rear shell.

[0014] In some embodiments, the display module includes a display panel and a functional substrate, the functional substrate being disposed on a side of the display panel away from the support wall, and including a main body portion disposed opposite to the display panel and an edge portion located around the main body portion;

[0015] The middle frame further includes a retaining wall, which is connected to the support wall and surrounds the display panel, and the edge portion of the functional substrate is clamped between the retaining wall and the cover plate.

[0016] In some embodiments, the side wall of the middle frame includes a main frame connected to each other and a clamping member disposed on a side of the main frame facing the cover plate. The clamping member is clamped with the side wall of the front frame. The main frame is detachably connected to the rear case, and defines the second accommodating portion together with the support wall and the rear case.

[0017] There is a deformation space between the clamping member and the retaining wall.

[0018] In some embodiments, the front frame further includes a fitting wall integrally formed with the side wall of the front frame. The fitting wall is disposed parallel to and fixedly connected to the cover plate. The fitting wall is located on a side of the cover plate facing the rear case, and forms a first limiting groove with the cover plate. The functional substrate is located in the first limiting groove.

[0019] In some embodiments, the functional substrate is a touch control substrate, and the first light-transmitting portion is a hollow structure.

[0020] In some embodiments, the display device further includes a buffer layer, which is disposed between the display module and the support wall.

[0021] In some embodiments, the middle frame and the front frame are clamped by a first snap structure, and the middle frame and the rear case are clamped by a second snap structure.

[0022] In some embodiments, the display device further includes:

[0023] A bracket, which is rotatably connected to the rear case and is used to adjust the angle between the display surface of the display module and the support surface where the display device is located.

[0024] In some embodiments, the rear case includes a back plate and a shaft seat disposed on the back plate. The back plate is disposed opposite to the driving component and is detachably connected to the middle frame. A shaft hole is formed in the shaft seat.

[0025] The display device further includes:

[0026] A rotating shaft, which is fixedly connected to the bracket and passes through the shaft hole. The rotating shaft is used to rotate relative to the shaft seat around its own axis.

[0027] A damping member, which is located in the shaft hole and sleeved on the rotating shaft. The damping member is used to provide a rotational damping force for the rotating shaft.

[0028] In some embodiments, the rotating shaft includes a first shaft portion and a second shaft portion. The first shaft portion is connected between the second shaft portion and the bracket and is located within the shaft hole; the second shaft portion is located outside the shaft hole.

[0029] The display device further includes:

[0030] A locking structure is provided on the second shaft portion for restricting the axial movement of the rotating shaft.

[0031] In some embodiments, the display device further includes:

[0032] A damping gasket is sleeved on the second shaft portion and is located between the limiting structure and the shaft seat.

[0033] In some embodiments, the limiting structure includes:

[0034] A spring washer is sleeved on the second shaft portion;

[0035] A flat washer is sleeved on the second shaft portion and is located on the side of the spring washer away from the shaft seat;

[0036] A fastener is fixed on the second shaft portion and is located on the side of the flat washer away from the shaft seat.

[0037] In some embodiments, the fastener includes a first nut threadedly connected to the second shaft portion; or,

[0038] A groove is provided on the second shaft portion. The fastener includes a second nut and a clamping member. The second nut is threadedly connected to the second shaft portion, and the clamping member is located on the side of the second nut away from the flat washer and is clamped with the groove.

[0039] In some embodiments, the shaft seat includes: a first seat body and a second seat body. The first seat body is fixed on the back plate, and the second seat body is provided on the side of the first seat body away from the back plate and is detachably connected to the first seat body;

[0040] A first groove is provided on the side of the first seat body facing the second seat body, and a second groove is provided on the side of the second seat body facing the first seat body. The first groove and the second groove enclose the shaft hole.

[0041] In some embodiments, the side of the first seat body facing the second seat body has an installation protrusion, and the second seat body is detachably connected to the installation protrusion through a fastener;

[0042] A second limiting groove is further provided on the side of the second seat body facing the first seat body, and at least a part of the installation protrusion is located in the second limiting groove.

[0043] In some embodiments, the middle frame includes: a support wall and middle frame side walls connected to the support wall, the support wall being disposed opposite to the cover plate; the middle frame side walls surround the support wall, and together with the support wall and the cover plate define the first accommodating portion, and together with the support wall and the rear case define the second accommodating portion;

[0044] An avoidance notch is formed on the middle frame side wall, and the rotating shaft passes through the avoidance notch; when the bracket is in a folded state, it is sleeved outside the middle frame side wall.

[0045] In some embodiments, the middle frame side wall includes a connected main frame and a clamping member disposed on a side of the main frame facing the cover plate, the clamping member being clamped to the front frame side wall, the main frame being detachably connected to the rear case, and together with the support wall and the rear case defining the second accommodating portion;

[0046] The rotating shaft extends in a first direction, and the main frame includes: a first wall and a second wall arranged along the first direction, and a third wall and a fourth wall arranged along a second direction; the second direction is perpendicular to the first direction, and the avoidance notches are formed on both the first wall and the second wall; the distances from the third wall and the fourth wall to the axis of the rotating shaft are equal.

[0047] In some embodiments, the bracket includes:

[0048] Relatively arranged first support arm and second support arm, a first end of the first support arm and a first end of the second support arm are both rotatably connected to the rear case;

[0049] A connecting arm connected between a second end of the first support arm and a second end of the second support arm;

[0050] A buffer sleeve sleeved on the connecting arm.

[0051] In some embodiments, the rear case includes: a back plate and reinforcing ribs provided on the back plate; the driving assembly abuts against the reinforcing ribs.

[0052] In some embodiments, the rear case includes at least one group of the reinforcing ribs, each group of the reinforcing ribs includes: a plurality of first reinforcing ribs arranged along the second direction, and a plurality of second reinforcing ribs connected between adjacent two of the first reinforcing ribs, two ends of each second reinforcing rib are respectively connected to adjacent two of the first reinforcing ribs; the first direction is perpendicular to the second direction.

[0053] In some embodiments, a first hollowed-out portion is formed on the middle frame; the driving assembly includes:

[0054] Mounting plate;

[0055] A battery, fixed on a side of the mounting plate facing the middle frame;

[0056] A system mainboard, fixed on a side of the mounting plate facing the middle frame, the system mainboard being electrically connected to the battery and electrically connected to the display module via a first connecting line passing through the first hollow portion;

[0057] A microprocessor is fixed on a side of the middle frame facing the mounting plate. The microprocessor is electrically connected to the system mainboard and is electrically connected to the display module via a second connecting line passing through the first hollow portion.

[0058] In some embodiments, the drive assembly also includes a key panel, which is electrically connected to the system mainboard and fixed to the side of the mounting plate away from the rear shell. A trigger is provided on the middle frame, and the trigger is in contact with a first button on the key panel.

[0059] In some embodiments, the display device further includes: a camera fixed on a side of the cover plate facing the rear housing and capable of performing signal transmission with the driving assembly;

[0060] The cover plate further comprises a second light-transmitting portion located at one side of the first light-transmitting portion, and the lens of the camera is arranged opposite to the second light-transmitting portion.

[0061] In some embodiments, a second hollow portion is opened on the middle frame, and the camera passes through the second hollow portion.

[0062] In some embodiments, the front frame further comprises: a front frame side wall and a fitting wall formed as an integral structure with the front frame side wall, the fitting wall is arranged parallel to the cover plate and fixed on a side of the cover plate facing the rear shell;

[0063] The middle frame also includes a support member located in the first accommodating portion, and the support member and the camera's orthographic projection on the plane where the cover plate is located are located on the same side of the orthographic projection of the display module on the plane where the cover plate is located; the support member is connected to the side wall of the middle frame and abuts against the fitting wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0065] Figure 1 An exploded view of a display device provided in some embodiments of the present disclosure.

[0066] Figure 2 Another perspective exploded view of the display device provided in some embodiments of the present disclosure.

[0067] Figure 3 Schematic diagram of the front frame and the display module provided in some embodiments of the present disclosure.

[0068] Figure 4 Schematic diagram of the front frame and the display module from another angle provided in some embodiments of the present disclosure.

[0069] Figure 5 Rear view of the assembled front frame and the display module provided in some embodiments of the present disclosure.

[0070] Figure 6 Schematic diagram of the middle frame provided in some embodiments of the present disclosure.

[0071] Figure 7 Cross-sectional schematic diagram of the display device provided in some embodiments of the present disclosure.

[0072] Figure 8 is Figure 7 an enlarged view of the Q area in Figure 9 is Figure 7 an enlarged view of the M area in.

[0073] Figure 10 Exploded view of the rear shell and the bracket provided in some embodiments of the present disclosure.

[0074] Figure 11 Cross-sectional view of the rotating shaft installed on the shaft seat provided in some embodiments of the present disclosure.

[0075] Figure 12 is Figure 11 a schematic diagram of the second seat body in

[0076] Figure 13 Another direction cross-sectional view of the rotating shaft installed on the shaft seat provided in some embodiments of the present disclosure.

[0077] Figure 14 Stereogram of the bracket installed on the shaft seat provided in some other embodiments of the present disclosure.

[0078] Figure 15 Exploded view of the bracket installed on the shaft seat provided in some other embodiments of the present disclosure.

[0079] Figure 16 Side view of the bracket installed on the shaft seat provided in some other embodiments of the present disclosure.

[0080] Figure 17 Schematic diagram of the groove on the rotating shaft provided in some other embodiments of the present disclosure.

[0081] Figure 18 This is a schematic diagram showing the stent provided in some embodiments of the present disclosure changing from the supporting state to the folded state. Detailed implementation manners

[0082] The following will describe in detail the specific implementation manners of the present disclosure with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.

[0083] To make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0084] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure shall have the ordinary meanings understood by those of ordinary skill in the art belonging to the field of the present disclosure. The "first", "second" and similar terms used in the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "include" or "comprise" mean that the elements or items appearing before the word cover the elements or items listed after the word and their equivalents, without excluding other elements or items. "Connection" or "coupling" and similar terms are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0085] As used herein, "parallel" and "perpendicular" include the described situations and situations similar to the described situations, and the range of the similar situations is within an acceptable deviation range, where the acceptable deviation range is determined by those of ordinary skill in the art considering the measurement being discussed and the errors associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where the acceptable deviation range for approximate parallelism may be, for example, within 5° deviation; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where the acceptable deviation range for approximate perpendicularity may also be, for example, within 5° deviation.

[0086] Exemplary embodiments are described herein with reference to cross-sectional views and / or plan views as idealized exemplary drawings. In the drawings, the thickness of layers and regions is exaggerated for clarity. Thus, variations in the shape relative to the drawings due to, for example, manufacturing techniques and / or tolerances are contemplated. Accordingly, exemplary embodiments should not be construed as limited to the shapes of the regions shown herein, but include shape deviations resulting from, for example, manufacturing. Thus, the regions shown in the drawings are schematic in nature, and their shapes are not intended to show the actual shapes of the regions of the device and are not intended to limit the scope of the exemplary embodiments.

[0087] Figure 1 The following is an exploded view of a display device provided in some embodiments of the present disclosure. Figure 2 The following is another perspective exploded view of a display device provided in some embodiments of the present disclosure. Figure 3 The following is a schematic view of a front frame and a display module provided in some embodiments of the present disclosure. Figure 4 The following is a schematic view of a front frame and a display module from another angle provided in some embodiments of the present disclosure. Figure 5 The following is a rear view of a front frame and a display module after assembly provided in some embodiments of the present disclosure. Figure 6 The following is a schematic view of a middle frame provided in some embodiments of the present disclosure. Figure 7 The following is a schematic cross-sectional view of a display device provided in some embodiments of the present disclosure. Figure 8 is Figure 7 an enlarged view of region Q in Figure 9 is Figure 7 an enlarged view of region M in. As Figures 1 to 7 shown, the display device includes: a front frame 1, a middle frame 3, a display module 2, a rear case 5, and a driving component 4. Among them, the front frame 1 includes a cover plate 11 having a first light-transmitting portion 111. The middle frame 3 is disposed opposite to the cover plate 11 and defines a first accommodation portion SP1 with the front frame 1. The display module 2 is disposed in the first accommodation portion SP1. The display module 2 includes a display area opposite to the first light-transmitting portion 111. Among them, the display module 2 may be a liquid crystal display module or an OLED (Organic Light-Emitting Diode) display module, or a Mini-LED (miniature light-emitting diode) display module, or a Micro-LED (micro light-emitting diode) display module, or a QLED (electroluminescent quantum dot) display module. The rear case 5 is disposed on a side of the middle frame 3 away from the cover plate 11 and defines a second accommodation portion SP2 with the middle frame 3. The driving component 4 is located in the second accommodation portion SP2, and the driving component 4 is electrically connected to the display module 2 for providing a display driving signal to the display module 2 to control the display of the display module 2.

[0088] Among them, the middle frame 3 is detachably connected to the front frame 1 and the rear housing 5. The "detachable connection" in the embodiments of the present disclosure means that the connection between the two is detachable; for example, it can be connected by means of screws and bolts; or clamped by a snap structure; or clamped by a clamping structure.

[0089] In the embodiments of the present disclosure, since the middle frame 3 is detachably connected to the front frame 1 and the middle frame 3 is detachably connected to the rear housing 5, when the display module 2 needs to be maintained, it only needs to detach the front frame 1 from the middle frame 3, and there is no need to detach the middle frame 3 from the rear housing 5; similarly, when the driving component 4 needs to be maintained, it only needs to detach the middle frame 3 from the rear housing 5, and there is no need to detach the front frame 1 from the middle frame 3, which makes the maintenance more convenient.

[0090] In some embodiments, as Figures 3 to 5 shown, the display module 2 includes a display panel 21 and a functional substrate 22. The functional substrate 22 is disposed on a side of the display panel 21 away from the support wall 32, and includes a main body portion 22a disposed opposite to the display panel 21 and an edge portion 22b located around the main body portion 22a. Among them, the main body portion 22a is attached to the display panel 21, and the edge portion 22a extends beyond the edge of the display panel 21.

[0091] In some embodiments, the display module 2 is a touch display module, that is, the functional substrate 22 is a touch substrate. In this case, the first light-transmitting portion 111 of the cover plate 11 is a hollow structure to facilitate the user to touch the display module 2.

[0092] In some embodiments, as Figures 1 to 5 shown, the front frame 1 further includes a front frame side wall 12, and the front frame side wall 12 is connected to the cover plate 11. In one example, the front frame side wall 12 and the cover plate 11 may be an integrally formed structure; in another example, as Figure 4 shown, the front frame 1 further includes a fitting wall 13 integrally formed with the front frame side wall 12. The fitting wall 13 is disposed parallel to and fixedly connected to the cover plate 11, and the fitting wall 13 is located on a side of the cover plate 11 facing the rear housing 5. For example, the cover plate 11 is connected to the fitting wall 13 through structures such as screws; or for another example, the cover plate 11 is connected to the fitting wall 13 through an adhesive, so as to keep the surface of the front frame 1 flat.

[0093] In one example, the fitting wall 13 and the cover plate 11 form a first limiting groove, and the functional substrate 22 is located in the first limiting groove, so as to limit the functional substrate 22, and further limit the entire display module 2, preventing the display module 2 from shaking in the first accommodating portion SP1 along the length or width direction of the cover plate 11.

[0094] Among them, the shape of the first limiting groove can be adapted to the shape of the functional substrate 22. For example, the functional substrate 22 is a right-angled rectangle or a rounded rectangle, and the first limiting groove is a right-angled rectangle. The length of the first limiting groove is the same as the length of the functional substrate 22, and the width of the first limiting groove is the same as the width of the functional substrate 22. The depth of the first limiting groove can be greater than the thickness of the functional substrate 22, less than the thickness of the functional substrate 22, or equal to the thickness of the functional substrate 22. Figure 8 Taking the depth of the first limiting groove being greater than the thickness of the functional substrate 22 as an example for illustration, it can be understood that the depth of the first limiting groove is the thickness of the fitting wall 13.

[0095] Such as Figures 6 to 9 As shown, the middle frame 3 includes: a support wall 32 and a middle frame side wall 31 connected to the support wall 32. The support wall 32 is disposed opposite to the cover plate 11; the middle frame side wall 31 surrounds the support wall 32 and defines a first accommodation portion SP1 with the support wall 32 and the cover plate 11, and defines a second accommodation portion SP2 with the support wall 32 and the rear case 5. Among them, the middle frame side wall 31 is detachably connected to the front frame side wall 12 and the rear case 5.

[0096] In some embodiments, as Figure 8 shown, the middle frame 3 and the front frame 1 are snap-connected by a first snap structure 01. The first snap structure 01 includes: a first hook 01a and a first slot 01b. The first hook 01a is disposed on the front frame side wall 12, and the first slot 01b is disposed on the middle frame side wall 31; of course, the first hook 01a can also be disposed on the middle frame side wall 31, and the first slot 01b can be disposed on the front frame side wall 12. The middle frame 3 and the rear case 5 are snap-connected by a second snap structure 02. The second snap structure 02 includes: a second hook 02a and a second slot 02b. The second hook 02a is disposed on the middle frame side wall 31, and the second slot 02b is disposed on the rear case 5. Of course, the second hook 02a can also be disposed on the rear case 5, and the second slot 02b can be disposed on the middle frame side wall 31. By snap structures, the front frame 1 is snap-connected to the middle frame 3, and the middle frame 3 is snap-connected to the rear case 5, which is more convenient for the disassembly and assembly of the display device.

[0097] In a specific example, the side wall 31 of the middle frame may include a connected clamping member 31a and a main frame 31b. The clamping member 31a is located on the side of the main frame 31a facing the cover plate 11 and is clamped with the front frame side wall 12. For example, a first card slot 01b is provided on the clamping member 31a. The number of the clamping members 31a may be multiple and are evenly spaced along the circumference of the main frame 31a. The main frame 31b and the support wall 32 and the rear case 5 define a second accommodation portion SP2. The main frame 31b may include: a first wall 311 and a second wall 312 arranged in a first direction, and a third wall 313 and a fourth wall 314 arranged in a second direction; the second direction is perpendicular to the first direction. The first wall 311, the second wall 312, the third wall 313, and the fourth wall 314 are all clamped with the rear case 5 through a second snap structure 02.

[0098] As Figure 8 shown, the middle frame 3 may further include a retaining wall 33. The retaining wall 33 is fixedly connected to the support wall 31 and is arranged around the display panel 21. The edge portion 22b of the functional substrate 22 is clamped between the retaining wall 33 and the cover plate 11, so as to define the position of the functional substrate 22 in the thickness direction of the cover plate 11, and further define the position of the display module 2. In this case, there is no need to connect the display module 2 to the front frame 1 and / or the middle frame 3 through additional connecting members (such as screws, adhesive, etc.), so that it is more convenient to disassemble when the display module 2 needs to be maintained.

[0099] Among them, as Figure 8 and Figure 9 shown, a buffer layer 21c may be provided between the display module 2 and the support wall 32 of the middle frame 3 to prevent the support wall 32 from squeezing and bumping the display panel 21 during the use and movement of the display device. The buffer layer 21c may be, for example, a foam pad.

[0100] As Figure 8 shown, there is a deformation space Sp0 between the clamping member 31a and the retaining wall 33, so that the clamping member 31a can be deformed in a certain amount in the direction close to the retaining wall 33, so as to facilitate the clamping of the clamping member 31a with the front frame side wall 12.

[0101] As Figure 8 and Figure 9 shown, the middle frame 3 further includes a pressing portion 34 connected to the support wall 32 and the main frame 31b. The pressing portion 34 extends from the inner side of the main frame 31b toward the middle of the second accommodation portion SP2 and presses on the edge of the driving component 4, so that the driving component 4 is clamped between the pressing portion 34 and the rear case 5.

[0102] The display device in the embodiments of the present disclosure may particularly be a small-sized display device. For example, a tablet computer. In some embodiments, as Figure 1 、 Figure 2 and Figure 7As shown in the figure, the display device may further include a bracket 7. The bracket 7 is rotatably connected to the rear case 5 and is used to adjust the angle between the display surface of the display module 2 and the support surface where the display device is located. Among them, the display surface of the display module 2 is the surface for display. Specifically, it may be the surface of the display module 2 away from the rear case 5.

[0103] Figure 10 is an exploded view of the rear case 5 and the bracket 7 provided in some embodiments of the present disclosure. Figure 11 is a cross-sectional view of the rotation shaft 80 installed on the shaft seat 52 provided in some embodiments of the present disclosure. Figure 12 is Figure 11 a schematic diagram of the second seat body in Figure 13 is another cross-sectional view of the rotation shaft 80 installed on the shaft seat 52 provided in some embodiments of the present disclosure. As Figures 10 to 13 shown, the rear case 5 includes a back plate 50 and a shaft seat 52. The back plate 50 is disposed opposite to the driving component 4 and is detachably connected to the middle frame 3 through a second snap structure 02. The shaft seat 52 is disposed on the back plate 50 and is provided with a shaft hole 52v. Among them, the extending direction of the shaft hole 52v is parallel to the display surface of the display module 2. For example, if the display module 2 is a rectangular structure, the extending direction of the shaft hole 52v is parallel to the length direction or the width direction of the display module 2.

[0104] In some embodiments, as Figure 10 and Figure 13 shown, the shaft seat 52 includes a first seat body 521 and a second seat body 522. The first seat body 521 is fixed on the back plate 50. For example, the first seat body 521 and the back plate 50 may be formed as an integral structure. The second seat body 522 is disposed on the side of the first seat body 521 away from the back plate 50 and is detachably connected to the first seat body 521, so as to facilitate the installation of the rotation shaft 80 on the shaft seat 52. For example, the first seat body 521 and the second seat body 522 may be connected by fasteners such as screws 523. A first groove 521v is formed on the side of the first seat body 521 facing the second seat body 522, and a second groove 522v is formed on the side of the second seat body 522 facing the first seat body 521. The first groove 521v and the second groove 522v enclose the shaft hole 52v. Of course, it may also be that a first groove 521v is formed on the side of the first seat body 521 facing the second seat body 522, the surface of the second seat body 522 facing the first seat body 521 is a plane, and the first groove 521v and the second seat body 522 enclose the shaft hole 52v; or, a second groove 522v is formed on the side of the second seat body 522 facing the first seat body 521, the surface of the first seat body 521 facing the second seat body 522 is a plane, and the second groove 522v and the first seat body 521 enclose the shaft hole 52v.

[0105] As Figure 11 and Figure 12As shown, in the embodiments of the present disclosure, one side of the first base 521 facing the second base 522 has a mounting protrusion 521a. For example, a threaded hole is provided on the mounting protrusion 521a, and the second base 522 is detachably connected to the mounting protrusion 521a through a fastener such as a screw 523. Correspondingly, a through hole 522b corresponding to the screw 523 is provided on the second base 522. Wherein, a second limiting groove 522s is further provided on one side of the second base 522 facing the first base 521, and at least a part of the mounting protrusion 521a is located in the second limiting groove 522s, so as to facilitate the alignment and installation of the first base 521 and the second base 522.

[0106] As Figure 1 , Figures 10 to 13 shown, the display device further includes: a damping member 86 and a rotating shaft 80 fixedly connected to the bracket 7. For example, both ends of the bracket 7 are respectively connected to two rotating shafts 80; the bracket 7 and the rotating shaft 80 can be an integral structure. The rotating shaft 80 passes through the shaft hole 52v and can rotate relative to the shaft seat 52 about its own axis. The damping member 86 is located in the shaft hole 52v and sleeved on the rotating shaft 80. The damping member 86 is used to provide a rotational damping force for the rotating shaft 80. Wherein, the damping member 86 has a certain elasticity. Its inner side tightly holds the rotating shaft 80, and its outer side is tightly sleeved by the shaft seat 52. When the rotating shaft 80 rotates, the damping member 86 does not rotate, so as to provide a rotational damping force f1 for the held rotating shaft 80, which can realize multi-angle transformation and stepless angle adjustment, and enable the bracket 7 to hover at any angle.

[0107] In some embodiments, the orthographic projection of the shaft hole 52v on a reference plane perpendicular to the axis of the rotating shaft 80 is a polygon, and the shape of the damping member 86 is adapted to the shape of the shaft hole 52v, so as to ensure that the damping member 86 does not rotate with the rotating shaft 80. Wherein, the shape of the damping member 86 being adapted to the shape of the shaft hole 52v means that the outer surface of the damping member 86 is adapted to the inner wall shape of the shaft hole 52v, so that there is no gap between the two. For example, the shaft hole 52v is a square hole, and the damping member 86 has a square outer and round inner structure.

[0108] In some embodiments, as Figure 10 and Figure 13 shown, the bracket 7 includes a first support arm 71 and a second support arm 72. The first support arm 71 and the second support arm 72 are respectively connected to two rotating shafts 80, and each rotating shaft 80 is located on one side of the first support arm 71 or the second support arm 72 close to the center of the rear case 5. The two rotating shafts 80 respectively pass through two shaft seats 52, and the two shaft seats 52 are respectively located on opposite sides of the rear case 5. Wherein, the first support arm 71 and the second support arm 72 are located outside the side wall 31 of the middle frame, that is, on the side of the side wall 31 of the middle frame away from the second accommodating portion SP2; the shaft seat 52 is located on the side of the side wall 31 of the middle frame close to the second accommodating portion SP2. As Figure 1 and Figure 2As shown, an avoidance notch 31v is formed on the side wall 31 of the middle frame, and two rotating shafts 80 connected to the first support arm 71 and the second support arm 72 pass through the avoidance notch 31v and thus extend into the shaft hole 52v.

[0109] As Figure 10 and Figure 13 shown, the rotating shaft 80 includes a first shaft portion 801 and a second shaft portion 802. The first shaft portion 801 is connected between the second shaft portion 802 and the bracket 7 and is located within the shaft hole 52v. The second shaft portion 802 is located outside the shaft hole 52v. The display device further includes: a locking structure provided on the second shaft portion 802 for restricting the axial movement of the rotating shaft 80 to prevent the rotating shaft 80 from disengaging from the shaft hole 52v.

[0110] Further, as Figure 10 and Figure 13 shown, the display device further includes a damping gasket 85 sleeved on the second shaft portion 802 and located between the locking structure and the shaft seat 52. When the rotating shaft 80 rotates, the locking structure rotates accordingly, so that the damping gasket 85 contacts the side surface of the shaft seat 52 to generate a rotational damping force f2 and generates a rotational damping force f3 with the locking structure, thereby further ensuring the support stability of the bracket 7 for the display device at any angle.

[0111] In some embodiments, as Figures 10 to 13 shown, the limiting structure includes: a spring gasket 83, a flat gasket 84, and a fastener 82a. The spring gasket 83 is sleeved on the second shaft portion 802; the flat gasket 84 is sleeved on the second shaft portion 802 and is located on the side of the spring gasket 83 away from the shaft seat 52. The fastener 82a is fixed on the second shaft portion 802 and is located on the side of the flat gasket 84 away from the shaft seat 52. In some embodiments, the fastener 82a includes a first nut 82 threadedly connected to the second shaft portion 802, and the first nut 82 can be a locknut.

[0112] Among them, when the rotating shaft 80 rotates, the damping member 86 does not rotate, generating a rotational damping force f1 on the rotating shaft 80. One side of the damping gasket 85 contacts the side surface of the shaft seat 52 to generate a rotational damping force f2, and the other side generates a rotational damping force f3 with the flat gasket 84. The lock nut, spring washer 83, and flat washer 84 clamp the damping gasket 85, and the greater the pre-tightening force, the greater the generated rotational damping forces f2 and f3. Assuming the thread tightening force is F and the final damping force for damping the rotation of the rotating shaft 80 is f, to achieve the damping effect, it is necessary to satisfy F > f1 + max(f2, f3), and the damping force f on one side of the rotating shaft 80 = f1 + min(f2, f3). At this time, it is ensured that the first nut 82, flat washer 84, and spring washer 83 all rotate with the rotating shaft 80, and the damping member 86 and damping gasket 85 produce the damping effect. The damping effect can be adjusted by adjusting the pre-tightening force of the first nut 82. When F < f1 + max(f2, f3), when the rotating shaft 80 is rotated, the first nut 82 will become loose and the damping fails.

[0113] Figure 14 The perspective view of the bracket 7 provided in some other embodiments of the present disclosure after being installed on the shaft seat 52 Figure 15 The exploded view of the bracket 7 provided in some other embodiments of the present disclosure after being installed on the shaft seat 52 Figure 16 The side view of the bracket 7 provided in some other embodiments of the present disclosure after being installed on the shaft seat 52 Figure 17 The schematic diagram of the groove on the rotating shaft 80 provided in some other embodiments of the present disclosure, as Figures 14 to 17 shown, in some other embodiments, a groove 802 is provided on the second shaft portion 802. The fastener 82a includes a second nut 87 and a clamping member 88. The second nut 87 is threadedly connected to the second shaft portion 802, and the clamping member 88 is located on the side of the second nut 87 away from the flat washer 84 and is clamped with the groove 802. Among them, the second nut 87 can be an ordinary nut and does not have to be a lock nut; the clamping member 88 can be an E-type snap ring. When assembling the fastener 82a and the damping gasket 85, first put the damping gasket 85, spring washer 83, and flat washer 84 on the rotating shaft 80, tighten the second nut 87 and apply sufficient pre-tightening force, and then snap in the E-type snap ring to prevent the second nut 87 from retreating to ensure a constant damping force. For example, as Figure 17 shown, two sections of external threads 8011 and 8012 are provided on the second part of the rotating shaft 80. The two sections of external threads 8011 and 8012 are respectively located on both sides of the groove 802. At the position of the groove 802, the diameter of the second part of the rotating shaft 80 is equal to the inner diameter of the E-type snap ring, for example, both are 2.5 mm, to ensure that the second nut 87 cannot come off.

[0114] Figure 18Schematic diagram of the bracket 7 changing from the supporting state to the folding state provided in some embodiments of the present disclosure, as Figure 2 , Figure 10 and Figure 18 shown, in addition to the above-mentioned first support arm 71 and second support arm 72, the bracket 7 further includes a connecting arm 73. Among them, the first ends of the first support arm 71 and the second support arm 72 are both rotatably connected to the rear shell 5, and the connecting arm 73 is connected between the second end of the first support arm 71 and the second end of the second support arm 72. Among them, the connecting arm 73 and the first support arm 71 and the second support arm 72 may be of an integral structure. The buffer sleeve 81 is sleeved on the connecting arm 73, and the setting of the buffer sleeve 81 can play an anti-slip role when the support frame is in the supporting state. For example, the buffer sleeve 81 may be a silica gel sleeve. The number of the buffer sleeves 81 may be one or more.

[0115] In some embodiments, as Figure 18 shown, when the bracket 7 is in the folded state, it is sleeved outside the side wall 31 of the middle frame. Here, "sleeved outside the side wall 31 of the middle frame" does not mean that the bracket 7 completely surrounds the side wall 31 of the middle frame, but may be in a state of semi-surrounding the side wall 31 of the middle frame. Specifically, the rotating shaft 80 extends in the first direction, as Figure 2 shown, the main frame 31b includes: a first wall 311 and a second wall 312 arranged in the first direction, and a third wall 313 and a fourth wall 314 arranged in the second direction; the second direction is perpendicular to the first direction, and avoidance notches 31v are formed on both the first wall 311 and the second wall 312, and the two rotating shafts 80 connected to the bracket 7 respectively pass through the avoidance notches 31v on the first wall 311 and the second wall 312. When the bracket 7 is completely folded, the first support arm 71 of the bracket 7 is disposed opposite to the first wall 311, the second support arm 72 is disposed opposite to the second wall 312, and the connecting arm 73 is disposed opposite to the third wall 313 or the fourth wall 314, so as to reduce the space occupied by the entire display device when the bracket 7 is in the folded state.

[0116] In some embodiments, the distances from the third wall 313 and the fourth wall 314 to the axis of the rotating shaft 80 are equal, so that the bracket 7 can realize a rotation of 0 to 180°.

[0117] In one example, the lengths of the first support arm 71 and the second support arm 72 may satisfy the following conditions: when the connecting arm 73 is located at the connection position between the outer surface of the side wall 31 of the middle frame and the back surface of the rear shell 5 (such as Figure 18 the A position in), this connection position slightly squeezes the buffer pad, and finally can make the first support arm 71, the second support arm 72 parallel to the back surface of the rear shell 5.

[0118] Among them, the longitudinal section of the connecting arm 73 can be a rectangular structure. When the bracket 7 is in the folded state, the surface of the buffer pad facing the side wall 31 of the middle frame is attached to the third wall 313 or the fourth wall 314, and the connecting arm 73 can no longer move in the direction closer to the cover plate 11. That is, the limit position of the bracket 7 is: the first support column, the second support column are parallel to the back surface of the rear shell 5.

[0119] In some embodiments, the axes of the two rotating shafts 80 connected to the bracket 7 are located on the same straight line, and the rear shell 5 is mirror-symmetrical about the straight line where the axis of the rotating shaft 80 is located, so as to reduce the error rate during assembly.

[0120] In some embodiments, when the rotating shaft 80 extends in the first direction, the two ends of the front frame 1 in the second direction respectively exceed the third wall 313 and the fourth wall 314. That is, when the rotating shaft 80 extends in the left-right direction, the upper end of the front frame 1 is higher than the third wall 313, and the lower end of the front frame 1 is lower than the fourth wall 314, so as to hide the bracket 7 in the folded state. Similarly, when the rotating shaft 80 extends in the second direction, the two ends of the front frame 1 in the first direction respectively exceed the first wall 311 and the second wall 312.

[0121] Such as Figure 1 and Figure 10 As shown, the rear shell 5 further includes a reinforcing rib 51 located on the back plate 50, so as to improve the strength of the rear shell 5. Among them, the driving component 4 abuts against the reinforcing rib 51 to prevent the driving component 4 from loosening.

[0122] In an example, the rear shell 5 includes at least one group of reinforcing ribs 51. Each group of reinforcing ribs 51 includes: a plurality of first reinforcing ribs 51a arranged along the second direction and a plurality of second reinforcing ribs 51b arranged along the first direction. The first reinforcing ribs 51a extend along the first direction, and the second reinforcing ribs 51b extend along the second direction. In the same group, a plurality of second reinforcing ribs 51b arranged along the first direction are provided between adjacent two first reinforcing ribs 51a, and both ends of each second reinforcing rib 51b are respectively connected to the two first reinforcing ribs 51a, so as to improve the overall supporting strength of each group of reinforcing ribs 51, and further improve the overall strength of the rear shell 5.

[0123] In an example, the reinforcing rib 51 on the back plate 50 can also be mirror-symmetrical about the axis of the rotating shaft 80. For example, the rear shell 5 includes two groups of reinforcing ribs 51, and the two groups of reinforcing ribs 51 are mirror-symmetrical about the axis of the rotating shaft 80, so that the driving component 4 is subjected to a uniformly distributed supporting force.

[0124] In one example, auxiliary reinforcing ribs 53 may also be provided on the back plate 50 to further improve the overall strength of the rear case 5. Among them, the height of the auxiliary reinforcing ribs 53 may be less than the height of the first reinforcing rib 51a and the second reinforcing rib 51b, that is, the auxiliary reinforcing ribs 53 do not support the driving assembly 4 and are only used to improve the strength of the rear case 5. Among them, the distribution of the auxiliary reinforcing ribs 53 may be set according to actual needs. For example, the auxiliary reinforcing ribs 53 extend along the second direction.

[0125] As Figure 1 shown, the driving assembly 4 includes: a mounting plate 45, a battery 42, a system main board 41, and a microprocessor 44. Among them, the mounting plate 45 abuts against the reinforcing rib 51. In one embodiment, the mounting plate 45 includes a mounting bottom plate 451 and mounting side plates 452 connected to the edge of the mounting bottom plate 451. The mounting bottom plate 451 and the mounting side plates 452 may be an integral structure. The mounting bottom plate 451 abuts against the reinforcing rib 51, and the mounting side plates 452 abut against the pressing portion 34 of the middle frame 3, so as to clamp the mounting plate 45 by using the pressing portion 34 and the rear case 5, so that there is no need for additional connecting parts to fix the mounting plate 45 on the rear case 5 or the middle frame 3, which is beneficial to the disassembly and maintenance of the display device.

[0126] The battery 42 is fixed on one side of the mounting bottom plate 451 facing the middle frame 3 and is used to supply power to the system main board 41. The system main board 41 is fixed on one side of the mounting bottom plate 451 facing the middle frame 3. For example, the system main board 41 can be fixed on one side of the mounting bottom plate 451 facing the middle frame 3 by using fasteners such as screws. The system main board 41 is electrically connected to the battery 42 and the display module 2. As Figure 2 shown, the middle frame 3 is provided with a first hollow portion 32a, a second hollow portion 32b, and a second hollow portion 32b. The system main board 41 is electrically connected to the display module 2 through a first connecting wire (not shown), and the first connecting wire passes through the first hollow portion 32a.

[0127] The microprocessor 44 is fixed on one side of the middle frame 3 facing the mounting plate 45. For example, positioning posts are provided on one side of the middle frame 3 facing the back plate 50, and the microprocessor 44 is fixed on the positioning posts by screws. The microprocessor 44 is electrically connected to the system main board 41 and is electrically connected to the display module 2 through a second connecting wire (not shown), and the second connecting wire passes through the first hollow portion 32a. Among them, a third hollow portion 32c is also provided on the support wall 32, and the microprocessor 44 can be arranged at the position of the third hollow portion 32c, which is beneficial to reducing the overall thickness of the middle frame 3 and the microprocessor 44 and reducing the overall weight of the display device. It should be noted that the microprocessor 44 is arranged at the position of the third hollow portion 32c, which means that the orthographic projection of the microprocessor 44 on the back plate 50 overlaps with the orthographic projection of the third hollow portion 32c on the back plate 50.

[0128] Among them, the size and shape of the first hollow portion 32a can be set according to actual needs, so that while ensuring that the support wall 32 supports the display module 2, the overall weight of the middle frame 3 can be reduced. In one example, the area of the first hollow portion 32a is larger than the area of any one of the second hollow portion 32b and the third hollow portion 32c.

[0129] As Figure 1 shown, the driving component 4 further includes a keypad 43. The keypad 43 is fixed to the side of the mounting plate 45 away from the rear case 5 and is electrically connected to the system main board 41. The keypad 43 has a first button 431. The first button 431 can protrude from the side wall of the mounting plate 45. A trigger 31s is provided on the side wall 31 of the middle frame. The trigger 31s contacts the first button 431 on the keypad 43. By controlling the trigger 31s, the first button 431 can be indirectly pressed. For example, the first button 431 is used to provide an on / off signal to the system main board 41 to control the power on / off of the display module 2.

[0130] In one example, the battery 42 is generally in a rectangular structure, and the system main board 41 is in an L-shaped structure. The system main board 41 and the keypad 43 are located on adjacent sides of the battery 42, so as to facilitate the battery 42 to supply power to the system main board 41 and the keypad 43 and improve the structural compactness of the driving component 4.

[0131] As Figure 1 and Figure 2 shown, the cover plate 11 further has a second light-transmitting portion 112 located on one side of the first light-transmitting portion 111. For example, the second light-transmitting portion 112 and the first light-transmitting portion 111 are arranged along the second direction. The display device further includes a camera 6. The camera 6 is fixed to the side of the cover plate 11 facing the rear case 5 and passes through the second hollow portion 32b. The orthographic projection of the fitting wall 13 of the front frame 1 on the cover plate 11 is located outside the area where the second light-transmitting portion 112 is located to prevent blocking the light collection of the camera 6.

[0132] In some embodiments, as Figure 6 shown, the middle frame 3 further includes a support member 35 located in the first accommodating portion SP1. The orthographic projections of the support member 35 and the camera 6 on the plane where the cover plate 11 is located are on the same side of the orthographic projection of the display module 2 on the plane where the cover plate 11 is located. Among them, the support member 35 is connected to the side wall 32 of the middle frame and abuts against the fitting wall 13, so as to support the cover plate 11 and prevent the corresponding position of the cover plate 11 from sagging after being stressed.

[0133] For example, as Figure 6 and Figure 9As shown, the support wall 32 of the middle frame 3 includes a first support sub-wall 321 and a second support sub-wall 322. Both the first support sub-wall 321 and the second support sub-wall 322 can be parallel or substantially parallel to the cover plate 11. The retaining wall 33 is disposed around the first support sub-wall 321. It should be noted that the "surrounding" here does not mean that the retaining wall 33 is a closed circular structure, and it can also be a semi-closed structure. The support member 35 is disposed on the side of the second support sub-wall 322 facing the cover plate 11, and the second support sub-wall 322 has the above-mentioned second hollow portion 32b. Among them, the support member 35 can include a plurality of support plates, and the plurality of support plates should avoid the position of the second hollow portion 32b. For example, the second support sub-wall 322 can be in the same plane as the pressing portion 34.

[0134] For example, as Figure 2 and Figure 4 As shown, two positioning posts 1203 and two stud bolts 1202 are provided on the surface of the fitting wall 13 facing the rear case 5. The two positioning posts 1203 are disposed at two diagonal positions of the circuit board of the camera 6, and the stud bolts 1202 are disposed at the other two diagonal positions. The function of the positioning posts 1203 can ensure the accurate positioning of the circuit board of the camera 6, and then the circuit board of the camera 6 is locked with the positioning posts 1203 and the stud bolts 1202 by screws. The lens of the camera 6 is disposed opposite to the second light-transmitting portion 112. The camera 6 can transmit signals to the driving assembly 4; for example, the camera 6 can collect the face image information of the user and transmit it to the system main board 41. After the system main board 41 processes the face image information collected by the camera 6, it controls the display screen of the display module 2. For example, the camera 6 can be connected to the system main board 41 through a connecting wire inside the display device; of course, it can also be electrically connected to an external control device through a connecting wire, and the external control device is electrically connected to the system main board 41.

[0135] In addition, the display device can further include a photosensitive sensor. For example, the photosensitive sensor can be used to detect the distance between an object or a person in front of the display device and the display device. The light-incident surface of the photosensitive sensor is disposed opposite to the second light-transmitting portion 112.

[0136] Among them, the portion of the cover plate 11 other than the first light-transmitting portion 111 and the second light-transmitting portion 112 is a light-shielding portion. For example, a light-shielding material can be coated on the area of the cover plate 11 other than the first light-transmitting portion 111 and the second light-transmitting portion 112. The material of the cover plate 11 can be glass or a transparent organic material such as polyimide (PI), etc.

[0137] It is understandable that the above embodiments are merely exemplary embodiments adopted to illustrate the principles of the present disclosure. However, the present disclosure is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present disclosure, and these modifications and improvements are also considered within the protection scope of the present disclosure.

Claims

1. A display device, characterized in that, it includes: a front frame, the front frame includes a cover plate having a first light-transmitting portion; a middle frame, disposed opposite to the cover plate, and defining a first accommodating portion with the front frame; a display module, disposed in the first accommodating portion; the display module includes a display area opposite to the first light-transmitting portion; a rear shell, disposed on a side of the middle frame away from the cover plate, and defining a second accommodating portion with the middle frame; a driving component, located in the second accommodating portion, the driving component is electrically connected to the display module, and is used to provide a display driving signal for the display module; wherein, the middle frame is detachably connected to the front frame and the rear shell.

2. The display device according to claim 1, characterized in that, the front frame further includes a front frame side wall, and the front frame side wall is connected to the cover plate; the middle frame includes: a support wall and a middle frame side wall connected to the support wall, the support wall is disposed opposite to the cover plate; the middle frame side wall surrounds the support wall, and defines the first accommodating portion with the support wall and the front frame, and defines the second accommodating portion with the support wall and the rear shell; wherein, the middle frame side wall is detachably connected to the front frame side wall and the rear shell.

3. The display device according to claim 2, characterized in that, the display module includes a display panel and a functional substrate, the functional substrate is disposed on a side of the display panel away from the support wall, and includes a main body portion disposed opposite to the display panel and an edge portion located at the periphery of the main body portion; the middle frame further includes a retaining wall, the retaining wall is connected to the support wall and surrounds the display panel, and the edge portion of the functional substrate is clamped between the retaining wall and the cover plate.

4. The display device according to claim 3, characterized in that, the middle frame side wall includes a main frame connected to each other and a clamping member disposed on a side of the main frame facing the cover plate, the clamping member is clamped with the front frame side wall, the main frame is detachably connected to the rear shell, and defines the second accommodating portion with the support wall and the rear shell; there is a deformation space between the clamping member and the retaining wall.

5. The display device according to claim 3, characterized in that, the front frame further includes a fitting wall integrally formed with the front frame side wall, the fitting wall is disposed parallel to and fixedly connected to the cover plate, the fitting wall is located on a side of the cover plate facing the rear shell, and forms a first limiting groove with the cover plate, and the functional substrate is located in the first limiting groove.

6. The display device according to claim 3, characterized in that, the functional substrate is a touch control substrate, and the first light-transmitting portion is a hollow structure.

7. The display device according to claim 2, characterized in that, the display device further includes a buffer layer, and the buffer layer is disposed between the display module and the support wall.

8. The display device according to any one of claims 1 to 7, characterized in that, the middle frame and the front frame are clamped through a first snap structure, and the middle frame and the rear shell are clamped through a second snap structure.

9. The display device according to any one of claims 1 to 7, It is characterized in that the display device further comprises: a bracket rotatably connected to the rear case for adjusting the angle between the display surface of the display module and the support surface where the display device is located.

10. The display device according to claim 9, It is characterized in that the rear case comprises a back plate and a shaft seat arranged on the back plate; the back plate is oppositely arranged to the driving component and is detachably connected to the middle frame; a shaft hole is formed in the shaft seat; the display device further comprises: a rotating shaft fixedly connected to the bracket and passing through the shaft hole, and the rotating shaft is used for rotating relative to the shaft seat around its own axis; a damping member located in the shaft hole and sleeved on the rotating shaft, and the damping member is used for providing a rotational damping force for the rotating shaft.

11. The display device according to claim 10, It is characterized in that the rotating shaft comprises a first shaft portion and a second shaft portion, the first shaft portion is connected between the second shaft portion and the bracket and is located in the shaft hole; the second shaft portion is located outside the shaft hole; the display device further comprises: a locking structure arranged on the second shaft portion for restricting the movement of the rotating shaft in its axial direction.

12. The display device according to claim 11, It is characterized in that the display device further comprises: a damping gasket sleeved on the second shaft portion and located between the limiting structure and the shaft seat.

13. The display device according to claim 11, It is characterized in that the limiting structure comprises: a spring gasket sleeved on the second shaft portion; a flat gasket sleeved on the second shaft portion and located on the side of the spring gasket away from the shaft seat; a fastening member fixed on the second shaft portion and located on the side of the flat gasket away from the shaft seat.

14. The display device according to claim 13, It is characterized in that the fastening member comprises a first nut threadedly connected to the second shaft portion; or a groove is formed in the second shaft portion, the fastening member comprises a second nut and a clamping member, the second nut is threadedly connected to the second shaft portion, and the clamping member is located on the side of the second nut away from the flat gasket and is clamped with the groove.

15. The display device according to claim 10, It is characterized in that the shaft seat comprises a first seat body and a second seat body, the first seat body is fixed on the back plate, the second seat body is arranged on the side of the first seat body away from the back plate and is detachably connected to the first seat body; a first groove is formed on the side of the first seat body facing the second seat body, a second groove is formed on the side of the second seat body facing the first seat body, and the first groove and the second groove enclose the shaft hole.

16. The display device according to claim 15, It is characterized in that the side of the first seat body facing the second seat body has an installation protrusion, and the second seat body is detachably connected to the installation protrusion through a fastening member; a second limiting groove is further formed on the side of the second seat body facing the first seat body, and at least part of the installation protrusion is located in the second limiting groove.

17. The display device according to claim 10, It is characterized in that the middle frame includes: a support wall and a middle frame side wall connected to the support wall, the support wall being disposed opposite to the cover plate; the middle frame side wall surrounds the support wall, and defines the first accommodation portion together with the support wall and the cover plate, and defines the second accommodation portion together with the support wall and the rear shell; an avoidance notch is formed on the middle frame side wall, and the rotating shaft passes through the avoidance notch; when the bracket is in a folded state, it is sleeved outside the middle frame side wall.

18. The display device according to claim 17 It is characterized in that the middle frame side wall includes a connected main frame and a clamping member disposed on a side of the main frame facing the cover plate, the clamping member being clamped with the front frame side wall, the main frame being detachably connected to the rear shell, and defining the second accommodation portion together with the support wall and the rear shell; the rotating shaft extends along a first direction, and the main frame includes: a first wall and a second wall arranged along the first direction, and a third wall and a fourth wall arranged along a second direction; the second direction is perpendicular to the first direction, and the avoidance notches are formed on both the first wall and the second wall; the distances from the third wall and the fourth wall to the axis of the rotating shaft are equal.

19. The display device according to claim 9 It is characterized in that the bracket includes: a first support arm and a second support arm disposed opposite to each other, a first end of the first support arm and a first end of the second support arm are both rotatably connected to the rear shell; a connecting arm connected between a second end of the first support arm and a second end of the second support arm; a buffer sleeve sleeved on the connecting arm.

20. The display device according to any one of claims 1 to 7 It is characterized in that the rear shell includes: a back plate and a reinforcing rib disposed on the back plate; the driving component abuts against the reinforcing rib.

21. The display device according to claim 20 It is characterized in that the rear shell includes at least one group of the reinforcing ribs, each group of the reinforcing ribs includes: a plurality of first reinforcing ribs arranged along the second direction, and a plurality of second reinforcing ribs connected between adjacent two of the first reinforcing ribs, two ends of each second reinforcing rib are respectively connected to adjacent two of the first reinforcing ribs; the first direction is perpendicular to the second direction.

22. The display device according to any one of claims 1 to 7 It is characterized in that a first hollow portion is formed on the middle frame; the driving component includes: a mounting plate; a battery fixed on a side of the mounting plate facing the middle frame; a system main board fixed on a side of the mounting plate facing the middle frame, the system main board being electrically connected to the battery, and electrically connected to the display module through a first connecting wire passing through the first hollow portion; a microprocessor fixed on a side of the middle frame facing the mounting plate, the microprocessor being electrically connected to the system main board, and electrically connected to the display module through a second connecting wire passing through the first hollow portion.

23. The display device according to claim 22 It is characterized in that The driving component further includes a keypad, which is electrically connected to the system main board and fixed to the side of the mounting board facing away from the rear case. A triggering member is provided on the middle frame, and the triggering member contacts a first button on the keypad.

24. The display device according to any one of claims 1 to 7, wherein, the display device further includes: a camera, which is fixed to the side of the cover plate facing the rear case and can perform signal transmission with the driving component; the cover plate further has a second light-transmitting portion located on one side of the first light-transmitting portion, and the lens of the camera is disposed opposite to the second light-transmitting portion.

25. The display device according to claim 24, wherein, a second hollow portion is formed on the middle frame, and the camera passes through the second hollow portion.

26. The display device according to claim 24, wherein, the front frame further includes: a front frame side wall and a fitting wall integrally formed with the front frame side wall, the fitting wall is disposed parallel to the cover plate and fixed to the side of the cover plate facing the rear case; the middle frame further includes a support member located in the first accommodating portion, and the orthographic projections of the support member and the camera on the plane where the cover plate is located are on the same side of the orthographic projection of the display module on the plane where the cover plate is located; the support member is connected to the middle frame side wall and abuts against the fitting wall.