CN113808481A

CN113808481A - Display device

Info

Publication number: CN113808481A
Application number: CN202010550496.5A
Authority: CN
Inventors: 李亮
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-12-17
Anticipated expiration: 2040-06-16
Also published as: CN113808481B

Abstract

The embodiment of the application provides a display device. The display device includes: the second moving body is connected with the first moving body in a sliding mode so as to realize the switching between the folded state and the unfolded state of the first moving body and the second moving body; the rotating mechanism is arranged at one end of the first moving body, can rotate relative to the first moving body and comprises a shaft body and a shaft sleeve, the shaft sleeve is sleeved on the outer surface of the shaft body, and the shaft sleeve can deform under stress; one end of the flexible screen assembly is arranged on the first moving body, the other end of the flexible screen assembly is arranged on the second moving body, and the flexible screen assembly is arranged around the rotating mechanism; when the flexible screen assembly moves around the rotating mechanism, the flexible screen assembly applies a first acting force to the shaft sleeve, so that the shaft sleeve is deformed, and the stress of the flexible screen assembly around the rotating mechanism is reduced. The shaft sleeve can protect the flexible screen assembly, and the possibility of damage to the flexible screen assembly can be reduced when the flexible screen assembly moves.

Description

Display device

Technical Field

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

Background

With the development of electronic technology, the degree of intelligence of display devices such as smart phones is increasing. The display device can display a picture through a display screen thereof.

Among them, the flexible display screen is receiving attention because it has a characteristic of being foldable and bendable, and the overall size of the display device can be reduced by folding or bending the flexible display screen. However, flexible displays are susceptible to damage during movement.

Disclosure of Invention

The embodiment of the application provides a display device, which can reduce the possibility of damage to a flexible screen assembly during movement.

An embodiment of the present application provides a display device, including:

a first moving body;

a second moving body slidably connected with the first moving body to realize switching between a folded state and an unfolded state of the first moving body and the second moving body;

the rotating mechanism is arranged at one end of the first moving body, can rotate relative to the first moving body, and comprises a shaft body and a shaft sleeve, wherein the shaft sleeve is sleeved on the outer surface of the shaft body, and can deform under the action of stress; and

one end of the flexible screen assembly is arranged on the first moving body, the other end of the flexible screen assembly is arranged on the second moving body, and the flexible screen assembly is arranged around the rotating mechanism;

when the flexible screen assembly moves around the rotating mechanism, the flexible screen assembly applies a first acting force to the shaft sleeve, so that the shaft sleeve is deformed, and the stress of the flexible screen assembly around the rotating mechanism is reduced.

The shaft sleeve can protect the flexible screen assembly, and the possibility of damage to the flexible screen assembly can be reduced when the flexible screen assembly moves.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

For a more complete understanding of the present application and its advantages, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, wherein like reference numerals represent like parts in the following description.

Fig. 1 is a perspective view of a first structure of a display device according to an embodiment of the present application.

Fig. 2 is a schematic view of the display device shown in fig. 1 in an unfolded state.

Fig. 3 is a cross-sectional view of the display device shown in fig. 2 taken along the direction P-P.

Fig. 4 is a first structural diagram of the rotating mechanism in the display device shown in fig. 3.

FIG. 5 is a schematic view of a portion of a flexible screen assembly and a rotation mechanism in accordance with an embodiment of the present application.

FIG. 6 is a schematic diagram of forces experienced by layers of a flexible screen assembly according to an embodiment of the present application as the flexible screen assembly is moved about a rotation mechanism.

Fig. 7 is a second structural schematic diagram of a rotating mechanism in a display device according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a third structure of a rotating structure in a display device according to an embodiment of the present application.

Fig. 9 is a schematic diagram illustrating a fourth structure of a rotating mechanism in a display device according to an embodiment of the present application.

Fig. 10 is a schematic structural diagram of a fifth structure of a rotating mechanism in a display device according to an embodiment of the present application.

Fig. 11 is a schematic structural diagram illustrating a rotating mechanism of a display device according to an embodiment of the present application cooperating with a portion of a flexible screen assembly.

Fig. 12 is a schematic structural diagram of a flexible screen assembly in a display device according to an embodiment of the present application.

Fig. 13 is another schematic structural diagram of a flexible screen assembly in a display device according to an embodiment of the present application.

Fig. 14 is a perspective view of a second structure of a display device according to an embodiment of the present application.

Fig. 15 is a schematic view of the display device shown in fig. 14 in an unfolded state.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

Referring to fig. 1 and fig. 2, fig. 1 is a perspective view of a first structure of a display device according to an embodiment of the present disclosure, and fig. 2 is a schematic diagram of the display device shown in fig. 1 in an expanded state. The display device 20 may include a first moving body 100, a second moving body 200, and a flexible screen assembly 300. The first and second moving

bodies

100 and 200 are slidably connected such that the first and second moving

bodies

100 and 200 are relatively moved in directions approaching or departing from each other, whereby switching between the expanded state and the collapsed state can be achieved. In this regard, the closed state may refer to fig. 1, that is, a state in which the first moving body 100 and the second moving body 200 are relatively moved in a direction to approach each other to be finally formed. In this case, the unfolded state may refer to fig. 2, which is a state in which the first moving body 100 and the second moving body 200 are relatively moved in a direction away from each other.

It should be noted that the unfolded state of the first moving body 100 and the second moving body 200 may be various, such as that the maximum moving distance of the first moving body 100 and the second moving body 200 in the direction away from each other is H, and the first moving body 100 and the second moving body 200 may move away from each other in the folded state, so as to achieve the unfolded state in which the distance is different by the same distance as one quarter H, one half H, and three quarters H. The state in which the distance becomes gradually farther may be defined as a first developed state, a second developed state, a third developed state, and the like in this order.

It should be noted that, when the first moving body 100 and the second moving body 200 are in the first deployed state, such as the distance of the relative distancing movement of the first moving body 100 and the second moving body 200 in the first deployed state is a quarter H, the first moving body 100 and the second moving body 200 can still perform the distancing movement with respect to each other to reach the second deployed state, such as the distance of the relative distancing movement of the first moving body 100 and the second moving body 200 in the second deployed state is a half H.

It is to be understood that the one or more development states of the first moving body 100 and the second moving body 200 of the embodiment of the present application are merely illustrative and do not constitute a limitation on the development states of the first moving body 100 and the second moving body 200 of the embodiment of the present application.

The embodiment of the application can design the positioning structure for the unfolded state of the display device 20 to realize positioning so as to maintain different unfolded states of the display device. The positioning structure can be realized by a magnetic positioning piece, and the positioning structure can also realize positioning by the matching of the positioning piece and the positioning groove.

The first moving body 100 and the second moving body 200 may be electrically driven to move relative to each other, such as one or more driving motors, as many transmission assemblies as the motors are provided, and a transmission assembly may include one or more gears, one or more racks, one or more transmission belts, or the like. The driving motor may drive the first and second moving

bodies

100 and 200 to move close to or away from each other through the transmission assembly. Of course, the first and second moving

bodies

100 and 200 may be driven to move closer to or away from each other manually.

One end of the flexible screen assembly 300 is fixedly connected to the first moving body 100, and the other end of the flexible screen assembly 300 is fixedly connected to the second moving body 200. The first and second moving

bodies

100 and 200 may support the flexible screen assembly 300. The first moving body 100 and the second moving body 200 may drive the flexible screen assembly 300 to move together or drive the flexible screen assembly 300 to move during the mutual movement, so that the length of the flexible screen assembly 300 may be adjusted, and the size of the display area of the display device 20 may be changed.

When the first and second moving

bodies

100 and 200 are relatively moved in a direction to approach each other, the first and second moving

bodies

100 and 200 may drive a portion of the flexible screen assembly 300 to be received inside the display device 20, such as inside the second moving body 200 of the display device 20. When the first and second moving

bodies

100 and 200 are relatively moved in a direction away from each other, the first and second moving

bodies

100 and 200 may drive a portion of the flexible screen assembly 300 to protrude from the inside of the display device 20, such as the second moving body 200.

The non-display surface of the flexible screen assembly 300 is disposed on one surface of the first moving body 100 and one surface of the second moving body, or the non-display surface of the flexible screen assembly 300 is disposed on one surface of the first moving body 100 and one surface of the second moving body 200. Whether the first moving body 100 and the second moving body 200 are in the collapsed state or in the expanded state, the flexible screen assembly 300 covers one surface of the first moving body 100 and one surface of the second moving body 200, only the covering areas are different in size.

When the first moving body 100 and the second moving body 110 are in the collapsed state, a portion of the other face of the first moving body 100 is located inside the second moving body 200. Or when the first moving body 100 and the second moving body 200 are in the collapsed state, a part of the first moving body 100 is received in the second moving body 200, and at this time, the other surface of the first moving body 100 is shielded by the second moving body 200. And the other side of the second moving body 200 serves as a housing of the display device 20.

When the first moving body 100 and the second moving body 200 are in the unfolded state, a part of the other surface of the first moving body 100 is located outside the second moving body 200, or is exposed outside, or is not shielded by the second moving body 200.

The present embodiment is configured such that, when the first and second moving

bodies

100 and 200 are in the collapsed state, the side positions of the first and second moving

bodies

100 and 200 are adjacent, such as abutted together. So that the overall structural integrity of the first and second moving

bodies

100 and 200 can be seen from the appearance.

It should be noted that the flexible screen assembly 300 generates a large frictional force when moving following the movement of the first moving body 100 and the second moving body 200, and the flexible screen assembly 300 is easily damaged.

Based on this, the embodiment of the present application may arrange a rotating mechanism in the display device 20, and the flexible screen assembly 300 may also rotate around the rotating mechanism when it needs to move, so as to reduce the friction force of the flexible screen assembly 300 during the moving process.

Referring to fig. 3, fig. 3 is a cross-sectional view of the display device shown in fig. 2 along the direction P-P. The display device 20 may further include a rotation mechanism 400, and the rotation mechanism 400 may be provided to one of the moving bodies of the display device 20. Such as the rotation mechanism 400, is provided at the first moving body 100, and the rotation mechanism 400 may be provided to one end position of the first moving body 100, or the rotation mechanism 400 may be provided near one end of the first moving body 100.

Referring to fig. 4, fig. 4 is a first structural schematic diagram of a rotating mechanism in the display device shown in fig. 3. The rotating mechanism 400 may include a shaft body 420 and two pins 440, one pin 440 may be disposed at one end of the shaft body 420, and the other pin 440 may be disposed at the other end of the shaft body 420. Two pins 440 may be fixedly connected to the first moving body 100, such as the first moving body 100 is provided with a shaft hole for placing the pin 440, and the rotation of the rotating mechanism 400 with respect to the first moving body 100 may be achieved by the cooperation of the pin 440 and the shaft hole.

The shaft body 420 may be hollow, so as to reduce the weight of the shaft body 420. Of course, the shaft body 420 may also be of a solid design.

The shaft body 420 may be made of a hard material such as metal.

During assembly of the display device 20, a portion of the flexible screen assembly 300 may be designed around the shaft body 420. Thus, the flexible screen assembly 300 moves around the shaft body 420 during movement. However, since the flexible screen assembly 300 has a multi-layer structure when the flexible screen assembly 300 moves around the shaft body 420, and material properties such as strength, young's modulus, and the like of each layer of the flexible screen assembly 300 are not uniform, the stress applied to each layer of the flexible screen assembly 300 during the movement is different, which may easily cause the display surface of the display screen assembly 300 to break and the non-display screen of the display screen assembly 300 to wrinkle.

Referring to fig. 5 and 6, fig. 5 is a schematic diagram illustrating a portion of a flexible screen assembly and a rotation mechanism according to an embodiment of the present disclosure, and fig. 6 is a schematic diagram illustrating forces to be borne by layers when the flexible screen assembly moves around the rotation mechanism according to the embodiment of the present disclosure. When the flexible screen assembly 300 moves in the first direction or the second direction, the flexible screen 300 moves around the rotating mechanism 400, and the flexible screen assembly 300 may receive a stretching force moving in the first direction or the second direction, and due to the non-uniform material properties, such as strength, young's modulus, and the like, of the structures of the layers of the flexible screen assembly 300, the stretching force applied to the layer structures (such as the cover plate, the polarizer, and the like) of the display surface of the flexible screen assembly 300 is large. Thereby easily causing a problem of breakage of the layer structure of the display surface of the flexible screen assembly 300.

Meanwhile, the flexible screen assembly 300 applies its force to the outer surface of the rotating mechanism 400, and since the flexible screen assembly 300 still generates friction when rotating around the outer surface of the rotating mechanism 400, the layer structure (such as the display layer) of the non-display surface of the flexible screen assembly 300 is subjected to a larger pressing force. Thereby easily causing a problem of wrinkling of the layer structure of the non-display side of the flexible screen assembly 300.

It is further noted that during rotation of flexible screen assembly 300 about rotation mechanism 400, flexible screen assembly 300 receives a pulling action that may apply a force to rotation mechanism 400. The rotation mechanism 400 now exerts a counter force, such as counter force F, on the flexible screen assembly 300.

Here, the first direction may be understood as a direction in which the first moving body 100 and the second moving body 200 move in a direction to approach each other. Here, the second direction may be understood as a direction in which the first moving body 100 and the second moving body 200 move away from each other.

Based on this, in the embodiment of the present application, a soft material may be disposed on the outer surface of the shaft body 420 to protect the flexible screen assembly 300.

Referring to fig. 7, fig. 7 is a second structural schematic diagram of a rotating mechanism in a display device according to an embodiment of the present disclosure. The rotation mechanism 400 may further include a shaft sleeve 460, and the shaft sleeve 460 may be sleeved on the outer surface of the shaft body 420. The sleeve 460 may deform when receiving a force. As flexible screen assembly 300 moves about rotation mechanism 400, flexible screen assembly 300 may apply a force, such as a first force, to bushing 460, which may cause bushing 460 to deform, thereby reducing stress on the portion of flexible screen assembly 300 about rotation mechanism 400. The likelihood of the display surface of the flexible screen assembly 300 breaking during movement is thereby reduced. While also reducing the likelihood of buckling of flexible screen assembly 300 during movement about rotation mechanism 400.

The smoothness of the shaft sleeve 460 in the embodiment of the present application may be greater than the smoothness of the shaft body 420, so that the friction of the non-display surface of the flexible screen assembly 300 during the movement around the rotating mechanism 400 is reduced, and the flexible screen assembly 300 is protected. The likelihood of the flexible screen assembly 300 buckling during movement about the rotation mechanism 400 may be further reduced.

The sleeve 460 may be made of soft material or flexible material. Such as rubber, is not only soft, but also easy to deform and has smooth surface.

The shaft sleeve 460 according to the embodiment of the present invention may have a one-layer structure, which may have a certain thickness. Of course, it is understood that the shaft sleeve 460 may also have a multi-layer structure, and the layer structure of the shaft sleeve 460 may be set according to actual requirements. The shaft body 420 may have a cylindrical structure, and the cross section thereof may have a circular structure. The sleeve 460 may have a cylindrical structure, and a cross section thereof may have a circular ring structure. Wherein, the thickness of the shaft sleeve 460 can be set according to actual requirements.

When flexible screen assembly 300 is not moved about rotation mechanism 400, rotation mechanism 400 may remain in the first state, i.e., rotation mechanism 400 does not receive a force from flexible screen assembly 300. As flexible screen assembly 300 is moved about rotation mechanism 400, rotation mechanism 400 may be switched from a first state to a second state in which sleeve 460 is deformed, such as from a circular configuration to an elliptical configuration. That is, the shaft sleeve 460 of the rotation mechanism 400 has a circular, or donut-shaped, cross-section in the first state. And the cross-section of the sleeve 460 when the rotation mechanism 400 is in the second state is an elliptical configuration.

It should be noted that the manner of protecting the flexible screen assembly 300 according to the embodiment of the present application is not limited thereto.

Referring to fig. 8, fig. 8 is a schematic structural diagram of a third structure of a rotation structure in a display device according to an embodiment of the present application. The rotation mechanism 400 may also include a spacer layer 480. The shaft body 420 and the shaft sleeve 460 may be spaced apart from each other, or a spacing space may be formed between the shaft body 420 and the shaft body 460, a spacing layer 480 may be disposed in the spacing space, or a predetermined gas may be filled in the spacing space. In the embodiment of the present application, the thickness of the shaft sleeve 460 may be designed to be thinner, and the shaft sleeve 460 may deform in the space of the spacer layer 480, that is, the shaft body 460 may deform through the spacer layer 480.

The spacer layer 480 may be a honeycomb structure, a mesh structure, or the like, which is easily deformed. The spacer layer 480 may also be understood as a predetermined gas, such as air. It should be noted that the structure of the spacer layer 480 is not limited thereto.

Both the sleeve 460 and the spacer 480 may be made of soft or flexible materials. And the material of the spacer layer 480 may be designed to have a hardness less than that of the material of the boss 460.

In the embodiment of the present invention, the spacer 480 is designed between the shaft sleeve 460 and the shaft body 420, so that the deformation of the rotation mechanism 400 is more easily realized, and the deformation amount can be increased compared to a single shaft sleeve. Therefore, the flexible screen assembly 300 is easier to deform due to the design of the shaft sleeve 460 and the spacing layer 480, the deformation amount is larger, and the protection effect on the flexible screen assembly 300 is better.

When the flexible screen assembly 300 is moved about the rotation mechanism 400, the flexible screen assembly 300 may apply a force, such as a first force, to the sleeve 460, which may cause the sleeve 460 to deform within the spatial extent of the spacer layer 480, thereby reducing stress on the portion of the flexible screen assembly 300 about the rotation mechanism 400. Thereby reducing the change in curvature of the flexible screen assembly 300 and reducing the likelihood of the display surface of the flexible screen assembly 300 breaking during movement. While also reducing the likelihood of buckling of flexible screen assembly 300 during movement about rotation mechanism 400.

When flexible screen assembly 300 is not moved about rotation mechanism 400, rotation mechanism 400 may remain in the third state, i.e., rotation mechanism 400 does not receive the force of flexible screen assembly 300. When the flexible screen assembly 300 is moved about the rotation mechanism 400, the rotation mechanism 400 may be switched from the third state to a fourth state in which the sleeve 460 is deformed within the spatial extent of the spacer 480, such as from a circular configuration to an elliptical configuration. That is, the cross-section of the shaft sleeve 460 of the rotating mechanism 400 in the third state is a circular structure, or a circular ring structure. And the cross-section of the boss 460 of the rotation mechanism 400 in the fourth state is an elliptical configuration. Likewise, the spacer layer 480 changes with changes in the sleeve 460. Such as spacer layer 480 of rotation mechanism 400, has a circular, or circular, configuration in cross-section in the third state. And the cross-section of the spacer layer 480 of the rotation mechanism 400 in the fourth state is an elliptical configuration.

Referring to fig. 9 and 10, fig. 9 is a fourth structural schematic diagram of a rotating mechanism in a display device according to an embodiment of the present application, and fig. 10 is a fifth structural schematic diagram of the rotating mechanism in the display device according to the embodiment of the present application. The shaft sleeve 460 of the rotating mechanism 400 is provided with a plurality of spacing grooves 401, so that when the flexible screen assembly 300 moves around the rotating mechanism 400, the non-display surface of the flexible screen assembly 300 is prevented from being wrinkled due to the matching of the shaft sleeve 460 and the non-display surface.

For better protection flexible screen subassembly 300, soft material is increased on the original structure of axis body 420 to this patent, and soft material is discontinuous, can guarantee like this that flexible screen subassembly 300 does not appear the problem of fold (peeling), and the soft material of discontinuity simultaneously can cause the area of a buffering for the power between flexible screen subassembly 300 and the axis body 420 on the one hand, can reduce the camber change of flexible screen subassembly 300 simultaneously to effectual protection flexible screen subassembly.

Referring to fig. 11 and 12, fig. 11 is a schematic structural diagram of a rotating mechanism and a portion of a flexible screen assembly in a display device according to an embodiment of the present disclosure, and fig. 12 is a schematic structural diagram of the flexible screen assembly in the display device according to the embodiment of the present disclosure. The flexible screen assembly 300 may include a display layer 310, a cover sheet layer 420, and a protective layer 330.

The display layer 310 may include a substrate sub-layer, a circuit arrangement sub-layer, a light emitting sub-layer, a touch sub-layer, a polarization structure sub-layer, and the like.

The cover layer 310 may include a cover, such as a transparent glass structure.

The protective layer 330 may include a plurality of spacer bars 332, and a spacer bar 332 may be placed in a spacer slot 401 during the movement of the flexible screen assembly 300. It will be appreciated that adjacent spacer layers form a shaft portion and that a plurality of sleeve portions form the sleeve 460 structure. The protective layer 330 may be made of a soft material such as rubber.

On the one hand, a buffering zone may be created for the force between the flexible screen assembly 300 and the shaft body 420, and at the same time, the curvature variation of the flexible screen assembly 300 may be reduced, thereby effectively protecting the flexible screen assembly 300. Meanwhile, the gear transmission effect can be achieved, so that the stress of the flexible screen assembly 300 is reduced (the phenomenon that the flexible screen assembly 300 is directly contacted with the shaft body 420 to generate a sliding action, so that the flexible screen assembly is damaged is avoided).

It should be noted that the protective layer 300 designed on the non-display surface of the flexible panel assembly 300 may also be a continuous structure, please refer to fig. 13, and fig. 13 is another schematic structural diagram of the flexible panel assembly in the display device according to the embodiment of the present disclosure. The protective layer 330 of the flexible screen assembly 300 shown in fig. 13 may be mated with the rotating assembly 400 shown in any of fig. 4, 6 and 7.

Referring to fig. 14 and 15, fig. 14 is a perspective view of a second structure of the display device according to the embodiment of the present application, and fig. 15 is a schematic view of the display device shown in fig. 14 in an expanded state.

The display device 40 includes a first moving body 42, a second moving body 44, and a flexible screen assembly 46. In which the first moving body 42 and the second moving body 44 are movable, such as slidable, with respect to each other to switch between the collapsed state and the expanded state. One end of the flexible screen assembly 46 is fixed on the first moving body 42, and the other end is fixed on the second moving body 44, and the first moving body 42 and the second moving body 44 move relative to each other to drive the flexible screen assembly 46 to move, so that a part of the flexible screen assembly 46 can be received in the first moving body 42 and the second moving body 44, or a part of the flexible screen assembly 46 can be displayed from the first moving body 42 and the second moving body 44. Thereby changing the display area of the flexible screen assembly 46.

The first and second moving

bodies

42 and 44 of the display device 40 can be relatively moved in one direction to change the display area of the flexible screen assembly 46. During the movement of the first moving body 42 and the second moving body 44, the top end and the bottom end of the display screen of the flexible screen assembly 46 can be unchanged, and the display content of the flexible screen assembly 46 in the lateral direction can be changed. Or the first moving body 42 and the second moving body 44 move relative to each other, the width of the flexible screen assembly 46 can be changed, while the length of the flexible screen assembly 46 is unchanged, so that the top end position or the bottom end position of the display screen of the flexible screen assembly 46 is unchanged.

The display device 40 may also include a rotating mechanism, and the rotating mechanism can refer to the above contents, which are not described herein again.

The display device provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A display device, comprising:

a first moving body;

2. The display device according to claim 1, wherein the sleeve is made of a soft material.

3. The display apparatus of claim 2, wherein the bushing is provided with a plurality of spaced grooves to prevent the non-display surface of the flexible screen assembly from wrinkling in cooperation with the bushing when the flexible screen assembly is wrapped around the rotation mechanism.

4. The display device according to claim 3, wherein the spacing groove extends from one end of the shaft body to the other end of the shaft body.

5. The display apparatus as claimed in claim 3, wherein a sleeve portion is formed between two adjacent spacing slots, the flexible panel assembly includes a flexible panel and a plurality of spacing bars disposed on a non-display surface of the flexible panel, and one of the spacing slots is configured to receive one of the spacing bars.

6. The display device according to claim 5, wherein the spacer is made of a flexible material.

7. The display device as claimed in any one of claims 1 to 6, wherein the cross-section of the sleeve is circular in configuration when the sleeve is not receiving an applied force;

the shaft sleeve is in a state of receiving a first acting force, and the cross section of the shaft sleeve is of an oval structure.

8. A display device as claimed in any one of claims 1 to 6, characterised in that the sleeve is of one-layer construction.

9. A display device as claimed in any one of claims 1 to 6, characterised in that the sleeve is of a multilayer construction.

10. The display device according to claim 1, wherein the flexible screen assembly comprises a flexible screen and a protective layer disposed on a non-display surface of the flexible screen, and the protective layer is made of a soft material.