CN118262612A - Folding display device - Google Patents

Abstract

The application discloses a folding display device, and belongs to the field of display. The folding display device includes: the flexible display panel, fixed support subassembly and movable support subassembly. The movable supporting component in the folding display device is hinged to one side of the fixed supporting component, and the flexible display panel cover is arranged on the supporting surface of the fixed supporting component and the supporting surface of the movable supporting component. And the movable supporting component can stretch out and draw back in the switching process of the folding state and the unfolding state of the folding display device. Therefore, in the folding or unfolding process, the fixed support assembly and the movable support assembly basically cannot squeeze or pull the flexible display panel, and the probability of damage to the flexible display panel after being folded for many times is reduced. In addition, after the folding display device is folded, the volume of the folding display device is effectively reduced, so that portability is improved.

Description

Folding display device

Technical Field

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

Background

With the development of display technology, more and more display devices are equipped with a folding display screen. The display device provided with the folding display screen can realize the switching of the physical size of the display device, and greatly improves the use experience of users.

However, in the folding display device, the casing in the folding display device is very easy to squeeze or pull the flexible screen in the folding or unfolding process, and the flexible screen is very easy to damage after multiple folds, so that the service life of the flexible screen is reduced.

Disclosure of Invention

The embodiment of the application provides a folding display device. The problem that a flexible screen in a folding display device in the prior art is easy to squeeze or pull can be solved, and the technical scheme is as follows:

in one aspect, there is provided a folding display device including:

the display device comprises a flexible display panel, a fixed support assembly and a movable support assembly;

at least one side of the fixed support component is hinged with the movable support component, the fixed support component and the movable support component are provided with support surfaces, and the flexible display panel cover is arranged on the support surfaces of the fixed support component and the movable support component;

the folding display device is provided with a folding state and an unfolding state, and when the folding display device is in the folding state, the fixed support component and the movable support component are arranged in a stacked mode; when the folding display device is in the unfolding state, the supporting surface of the fixed supporting component and the supporting surface of the movable supporting component are coplanar;

The movable supporting component can stretch and retract in the switching process of the folding state and the unfolding state of the folding display device.

Optionally, the fixed support assembly includes: the flexible display panel comprises two oppositely arranged first swing arms and a first support plate positioned between the two first swing arms, wherein the first support plate is connected with the flexible display panel.

Optionally, the movable supporting component includes: the flexible display panel comprises two oppositely arranged second swing arms and a second support plate positioned between the two second swing arms, wherein the second support plate is separated from the flexible display panel.

Optionally, the number of the fixed support assemblies is at least two, and the number of the movable support assemblies is at least one;

At least one movable supporting component is distributed between two adjacent fixed supporting components, the end part of the first swing arm is rotationally connected with the end part of the second swing arm, and the second swing arm can stretch out and draw back in the length direction of the second swing arm.

Optionally, the second swing arm includes: the two adjacent sub-swing arms are connected in a sliding mode, and the end portions of the two outermost sub-swing arms in the at least two sub-swing arms are respectively connected with the end portions of the first swing arms in the two adjacent fixed support assemblies in a rotating mode.

Optionally, in the two adjacent sub-swing arms, one end of the sub-swing arm is provided with a chute, and the other end of the sub-swing arm is located in the chute.

Optionally, the second support plate includes: the device comprises at least two sub-supporting plates, wherein the at least two sub-supporting plates are in one-to-one correspondence with the at least two sub-swinging arms, and each sub-supporting plate is fixedly connected with the corresponding sub-swinging arm.

Optionally, the first fixed support assembly includes: the rear shell is fixedly connected with the two first swing arms, and in the first fixed support assembly, the rear shell and the two first swing arms are used for enclosing a containing space;

Wherein the first fixed support assembly is any one of the at least two fixed support assemblies; when the folding display device is in the folding state, the fixed support component and the movable support component are both positioned in the accommodating space; when the folding display device is in the unfolding state, the movable supporting component is located outside the accommodating space, and the fixed supporting components except the first fixed supporting component in the at least two fixed supporting components are located outside the accommodating space.

Optionally, the folding display device further includes: the lifting assembly is positioned in the accommodating space, the lifting assembly is respectively connected with the rear shell and a first supporting plate in the first fixed supporting assembly, and the lifting assembly is configured to: and in the switching process of the folding display device between the folding state and the unfolding state, the first supporting plate in the first fixed supporting component is driven to lift.

Optionally, the lifting assembly includes: lifting rod, slide block and rotating arm;

The lifting rod is fixedly connected with a first supporting plate in the first fixed supporting assembly, the sliding block is in sliding connection with the rear shell, and the rotating arms are respectively in rotating connection with the sliding block and the end parts of the lifting rod.

Optionally, the sliding block and the rotating arm are both distributed at the first end of the lifting rod, and the first end of the lifting rod is: when the folding display device is in the unfolding state, the lifting rod is close to the end part of the second swing arm;

The end part of the second swing arm, which is rotationally connected with the first swing arm in the first fixed support assembly, is provided with: a first drive protrusion and/or a second drive protrusion;

Wherein the first drive protrusion is configured to: in the process of switching the folding display device from the folding state to the unfolding state, driving force is applied to the sliding block so as to drive the lifting rod to ascend; the second driving protrusion is configured to: and in the process of switching the folding display device from the unfolding state to the folding state, driving force is applied to the sliding block so as to drive the lifting rod to descend.

Optionally, the slider includes: the sliding block body is in sliding connection with the rear shell, and a stress part is fixedly connected with one side, away from the rear shell, of the sliding block body, the end part of the sliding block body is in rotary connection with the end part of the rotating arm, and the stress part is distributed at one end, away from the rotating arm, of the sliding block body;

In the process of switching the folding display device from the folding state to the unfolding state, the first driving protrusion is abutted with one side of the stress part, which is away from the lifting rod, in the sliding direction of the sliding block body; in the process of switching the folding display device from the unfolding state to the folding state, the second driving protrusion is abutted with one side, close to the lifting rod, of the stress part in the sliding direction of the sliding block body.

Optionally, the lifting assembly further includes: the auxiliary sliding block and the auxiliary rotating arm are distributed at the second end part of the lifting rod, the auxiliary sliding block is in sliding connection with the rear shell, the auxiliary rotating arm is respectively in rotating connection with the auxiliary sliding block and the second end part of the lifting rod, and the sliding direction of the auxiliary sliding block is parallel to the sliding direction of the sliding block.

Optionally, the lifting assembly further includes: the guide rod is fixed in the accommodating space, the axial direction of the guide rod is perpendicular to the axial direction of the lifting rod, the lifting rod is provided with a guide hole, the lifting rod is sleeved on the guide rod through the guide hole, and the guide rod is in sliding connection with the lifting rod.

Optionally, one movable supporting component is distributed between the first fixed supporting component and a second fixed supporting component, and the second fixed supporting component is a fixed supporting component adjacent to the first fixed supporting component in the at least two fixed supporting components;

and in the process of switching the folding state and the unfolding state of the folding display device, the rotating direction of the movable supporting component relative to the first fixed supporting component is opposite to the rotating direction of the second fixed supporting component relative to the movable supporting component.

Optionally, the folding display device further includes: a torsion assembly located between the first swing arm and the second swing arm, the torsion assembly configured to: a damping force is provided during rotation of the first swing arm relative to the second swing arm.

Optionally, the torsion assembly includes: the first cams are fixedly connected with the end parts of the first swing arms, and the second cams are fixedly connected with the end parts of the second swing arms, and the first cams and the second cams are oppositely arranged.

The technical scheme provided by the embodiment of the application has the beneficial effects that at least:

A folding display device may include: the flexible display panel, fixed support subassembly and movable support subassembly. The movable supporting component in the folding display device is hinged to one side of the fixed supporting component, and the flexible display panel cover is arranged on the supporting surface of the fixed supporting component and the supporting surface of the movable supporting component. And the movable supporting component can stretch out and draw back in the switching process of the folding state and the unfolding state of the folding display device (namely, the movable supporting component can adjust the length of the movable supporting component in the process that the fixed supporting component and the movable supporting component drive the flexible display panel to fold so as to extend or shorten the length of a connecting rod mechanism formed by the fixed supporting component and the movable supporting component, thereby continuously adapting to the deformation of the flexible display panel in the folding or unfolding process). Therefore, in the folding or unfolding process, the fixed support assembly and the movable support assembly basically cannot squeeze or pull the flexible display panel, and the probability of damage to the flexible display panel after being folded for many times is reduced. In addition, after the folding display device is folded, the volume of the folding display device is effectively reduced, so that portability is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a foldable display device according to an embodiment of the present application;

FIG. 2 is an exploded schematic view of the folding display device shown in FIG. 1;

fig. 3 is a schematic view showing the effect of the folding display device after being fully unfolded and folded according to the embodiment of the present application;

FIG. 4 is an exploded view of another foldable display device according to an embodiment of the present application;

FIG. 5 is an exploded schematic view of the folding display device shown in FIG. 4;

FIG. 6 is a schematic view of the folding display device shown in FIG. 4 in a fully unfolded and folded configuration;

FIG. 7 is an exploded view of yet another foldable display device according to an embodiment of the present application;

Fig. 8 is a schematic structural view of the folding display device shown in fig. 7;

fig. 9 is a schematic view of an exploded structure of still another foldable display device according to an embodiment of the present application;

Fig. 10 is an effect schematic view of the folding display device shown in fig. 9 being switched between a folded state and an unfolded state;

FIG. 11 is an exploded view of a foldable display device according to another embodiment of the present application;

FIG. 12 is a schematic view of a lifting assembly coupled to a rear housing according to an embodiment of the present application;

fig. 13 is an exploded schematic view of a part of the structure of the folding display device shown in fig. 12;

FIG. 14 is a schematic view showing the lifting effect of a lifting rod in a lifting assembly according to an embodiment of the present application;

fig. 15 is a schematic view showing the effect of a fully unfolded foldable display device according to an embodiment of the present application;

Fig. 16 is a schematic diagram showing the effect of the folding display device according to the embodiment of the present application when the folding display device is fully folded;

FIG. 17 is a schematic diagram showing the effect of switching a foldable display device between a folded state and an unfolded state according to an embodiment of the present application;

Fig. 18 is a schematic structural view of another folding display device according to another embodiment of the present application.

Specific embodiments of the present application have been shown by way of the above drawings and will be described in more detail below. The drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but rather to illustrate the inventive concepts to those skilled in the art by reference to the specific embodiments.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The types of foldable display devices can be divided into a plurality of types, and for example, they can be mobile phones, tablet computers, notebook computers, electronic books, and the like. Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a foldable display device according to an embodiment of the application, and fig. 2 is an exploded schematic diagram of the foldable display device shown in fig. 1. The folding display device 000 may include: the flexible display panel 100, the fixed support assembly 200, and the movable support assembly 300.

At least one side of the fixed support assembly 200 in the folding display device 000 may be hinged with the movable support assembly 300. The fixed support assembly 200 and the movable support assembly 300 may each have a support surface, and the flexible display panel 100 may be capped on the support surface of the fixed support assembly 200 and the support surface of the movable support assembly 300. Illustratively, one side of the stationary support assembly 200 may be hinged with the movable support assembly 300; or both sides of the fixed support assembly 200 may be hinged with the movable support assembly 300, which is not particularly limited in the embodiment of the present application.

The folding display device 000 may have a folded state and an unfolded state, and the fixed support assembly 200 and the movable support assembly 300 may be stacked when the folding display device 000 is in the folded state; when the folding display device 000 is in the unfolded state, the support surface m1 of the fixed support member 200 and the support surface m2 of the movable support member 300 may be coplanar, i.e., the support surface m1 of the fixed support member 200 and the support surface m2 of the movable support member 300 may be located in the same plane.

The movable supporting component 300 can stretch and retract during the process of switching the folding state and the unfolding state of the folding display device.

In the present application, please refer to fig. 1, fig. 2 and fig. 3, and fig. 3 is a schematic diagram showing an effect of the folding display device after being fully unfolded and folded according to an embodiment of the present application. The movable supporting member 300 in the folding display device 000 is hinged to one side of the fixed supporting member 200, and the flexible display panel 100 is cover-provided on the supporting surface m1 of the fixed supporting member 200 and the supporting surface m2 of the movable supporting member 300. And the movable supporting component 300 can stretch and retract during the switching process of the folding state and the unfolding state of the folding display device 000 (i.e. the movable supporting component can adjust its own length during the folding process of the flexible display panel driven by the fixed supporting component and the movable supporting component, so that the length of the link mechanism formed by the fixed supporting component and the movable supporting component is extended or shortened, so as to continuously adapt to the deformation of the flexible display panel during the folding or unfolding process). In this way, the fixed support assembly 200 and the movable support assembly 300 do not substantially squeeze or pull the flexible display panel 100 during the folding or unfolding process of the folding display device, and the probability of damage to the flexible display panel 100 after multiple folding is reduced. In addition, after the folding display device 000 is folded, the volume thereof is effectively reduced, thereby improving portability.

In summary, an embodiment of the present application provides a folding display device, which may include: the flexible display panel, fixed support subassembly and movable support subassembly. The movable supporting component in the folding display device is hinged to one side of the fixed supporting component, and the flexible display panel cover is arranged on the supporting surface of the fixed supporting component and the supporting surface of the movable supporting component. And the movable supporting component can stretch out and draw back in the switching process of the folding state and the unfolding state of the folding display device (namely, the movable supporting component can adjust the length of the movable supporting component in the process that the fixed supporting component and the movable supporting component drive the flexible display panel to fold so as to extend or shorten the length of a connecting rod mechanism formed by the fixed supporting component and the movable supporting component, thereby continuously adapting to the deformation of the flexible display panel in the folding or unfolding process). Therefore, in the folding or unfolding process, the fixed support assembly and the movable support assembly basically cannot squeeze or pull the flexible display panel, and the probability of damage to the flexible display panel after being folded for many times is reduced. In addition, after the folding display device is folded, the volume of the folding display device is effectively reduced, so that portability is improved.

Alternatively, referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of another folding display device according to an embodiment of the present application, and fig. 5 is an exploded schematic diagram of the folding display device shown in fig. 4. The fixing support assembly 200 in the folding display device may include: the first support plate 202 may be connected to the back surface of the flexible display panel 100 (i.e., the surface opposite to the display surface a1 of the flexible display panel 100), and the first support plate between the two first swing arms. In the present application, the movable supporting assembly 300 in the folding display device 000 may include: two oppositely disposed second swing arms 301, and a second support plate 302 located between the two second swing arms 301. The second support plate 302 may be disposed separately from the rear surface of the flexible display panel 100. In this way, the second swing arm 301 of the movable support assembly 300 may be hinged to the first swing arm 201 of the fixed support assembly 200, and the first support plate 202 located between the two first swing arms 201 and the second support plate 302 located between the two second swing arms 301 may be capable of stably supporting the flexible display panel 100 during rotation of the second swing arm 201 relative to the first swing arm 201.

In the embodiment of the present application, as shown in fig. 4 and 5, the number of the fixed supporting components 200 in the foldable display device 000 may be at least two, and the number of the movable supporting components 300 may be at least one. At least one movable supporting component 300 is distributed between two adjacent fixed supporting components 200, the end of a first swing arm 201 in the fixed supporting components 200 can be rotatably connected with the end of a second swing arm 301 in the movable supporting components 300, and the second swing arm 301 can stretch in the length direction of the second swing arm 301. For example, a movable supporting member 300 may be disposed between two adjacent fixed supporting members 200; or two movable supporting components 300 may be distributed between two adjacent fixed supporting components 200, and the end portions of the second swing arms in the two movable supporting components 300 are also rotatably connected, which is not particularly limited in the embodiment of the present application. The following embodiments schematically illustrate the principle of movement of the foldable display device 000 by taking an example in which a movable supporting member 300 is disposed between two adjacent fixed supporting members 200:

For example, please refer to fig. 4 and fig. 6, fig. 6 is a schematic view showing the effect of the folding display device shown in fig. 4 after being fully unfolded and folded. When the folding display device 000 is switched from the unfolded state to the folded state, the two oppositely disposed second swing arms 301 of the movable support assembly 300 can integrally rotate around one of the two adjacent fixed support assemblies 200 in the first direction f1 under the action of an external force; the two first swing arms 201 of the other of the two adjacent fixed support assemblies 200 are capable of rotating integrally about the movable support assembly 300 in the second direction f 2. And in the process that the movable supporting component 300 rotates relative to one fixed supporting component 200 and the other fixed supporting component 200 rotates relative to the movable supporting component 300, the second swing arm 301 in the movable supporting component 300 can stretch and retract in the length direction of the second swing arm 301 (namely, the second swing arm in the movable supporting component can adjust the length of the second swing arm in the movable supporting component in the process that the fixed supporting component and the movable supporting component drive the flexible display panel to fold, so that the length of a connecting rod mechanism formed by the swing arm in the fixed supporting component and the swing arm in the movable supporting component is prolonged or shortened, and the deformation of the flexible display panel in the folding process is continuously adapted). In this way, the fixed support assembly 200 and the movable support assembly 300 do not substantially squeeze or pull the flexible display panel 100 during the folding process, so that the probability of damage to the flexible display panel 100 after multiple folding is reduced. In addition, after the folding display device 000 is folded, the volume thereof is effectively reduced, thereby improving portability. It should be noted that the first direction f1 may be a counterclockwise direction or a clockwise direction, and the second direction f2 may be a counterclockwise direction or a clockwise direction, which is not particularly limited in the present application. Here, the first direction f1 is a counterclockwise direction, and the second direction f2 is a clockwise direction.

When the folding display device 000 is switched from the folded state to the unfolded state, the two oppositely disposed second swing arms 301 of the movable support assembly 300 can integrally rotate around one of the two adjacent fixed support assemblies 200 in a direction opposite to the first direction f1 under the action of an external force; the two first swing arms 201 of the other of the two adjacent fixed support assemblies 200 are capable of rotating integrally about the movable support assembly 300 in a direction opposite to the second direction f 2. And in the process that the movable supporting component 300 rotates relative to one fixed supporting component 200 and the other fixed supporting component 200 rotates relative to the movable supporting component 300, the second swing arm 301 in the movable supporting component 300 can stretch and retract in the length direction of the second swing arm (namely, the second swing arm in the movable supporting component can adjust the length of the second swing arm in the movable supporting component and the second swing arm in the movable supporting component to enable the length of a connecting rod mechanism formed by the swing arm in the fixed supporting component and the swing arm in the movable supporting component to be prolonged or shortened in the process that the fixed supporting component and the movable supporting component drive the flexible display panel to be folded, so as to continuously adapt to the deformation of the flexible display panel in the folding process). In this way, in the unfolding process, the fixed support assembly 200 and the movable support assembly 300 basically do not generate adverse phenomena of extrusion or pulling on the flexible display panel 100, so that the probability of damage to the flexible display panel 100 after multiple folding is reduced. In addition, after the folding display device 000 is unfolded, a larger display area and operation area can be provided, thereby improving convenience of use.

It should be noted that the flexible display panel 100 includes at least two first portions (not shown) corresponding to the at least two fixed supporting components 200 one by one, and at least one second portion (not shown) corresponding to the at least one movable supporting component 300 one by one. The first support plate 202 is coupled to the back surface of a first portion of the flexible display panel 100, and the second support plate 302 is disposed apart from a second portion of the flexible display panel 100. In this way, the first swing arm 201 in the fixed support assembly 200 and the second swing arm 301 in the movable support assembly 300 drive the first portion and the second portion of the flexible display panel 100, and the first support plate 201 and the second support plate 202, to rotate during the switching of the folded display device 000 between the folded state and the unfolded state. The distance by which the second swing arm 301 expands and contracts in the longitudinal direction of the second swing arm is related to the angle at which the flexible display panel 100 rotates when folded or the angle at which the flexible display panel expands.

Alternatively, referring to fig. 7 and 8, fig. 7 is an exploded schematic view of another folding display device according to an embodiment of the present application, and fig. 8 is a schematic view of the folding display device shown in fig. 7. The second swing arm 301 in the movable support assembly 300 may include: the at least two sub-swing arms are connected with each other in a sliding way. And the end parts of the two outermost sub-swing arms of the at least two sub-swing arms may be respectively rotatably connected with the end parts of the first swing arms 201 of the two adjacent fixed support assemblies 200. By way of example, the second swing arm 301 may include two sub-swing arms, or three sub-swing arms, to which embodiments of the present application are not limited in particular. It should be noted that, in the embodiments of the present application, the second swing arm 301 includes two sub swing arms as an example for illustration. In this case, by slidably connecting the first ends of the two sub swing arms (sub swing arm 301a and sub swing arm 301 b) in the second swing arm 301, the second ends of the two sub swing arms are rotatably connected with the ends of the first swing arm 201 in the two fixed support assemblies 200. In this way, during rotation of the second swing arm 301 relative to the first swing arm 201, one sub-swing arm 301a of the second swing arm 301 can slide along the axial direction L1 of the other sub-swing arm 301b, so that the length of the second swing arm 301 can be lengthened or shortened with the change in angle of the respective portions in the flexible display panel 100 during folding or unfolding.

In the embodiment of the present application, as shown in fig. 7 and 8, of two adjacent sub-swing arms in the second swing arm 301, an end portion of one sub-swing arm may have a sliding slot A1, and an end portion of the other sub-swing arm may be located in the sliding slot A1. For example, of the two sub-swing arms of the second swing arm 301, the first end of one sub-swing arm 301a may have a slide groove A1, and the first end of the other sub-swing arm 301b may be located within the slide groove A1 in the first end of one sub-swing arm 301 a. In this case, by providing a slide groove A1 at a first end of one sub-swing arm 301a of the two sub-swing arms, a first end of the other sub-swing arm 301b can be located within the slide groove A1. In this way, the first end of the other sub-swing arm 301b can slide in the chute A1 in the first end of the sub-swing arm 301a, which ensures that the two sub-swing arms in the second swing arm 301 can slide stably and relatively in the folding or unfolding process of the flexible display panel 100 in the folding display device 000, and improves the use experience of the user.

Alternatively, as shown in fig. 7, the second support plate 302 located between the two second swing arms 301 may include: at least two sub-support plates 302a, the at least two sub-support plates 302a and at least two sub-swing arms of the second swing arm 301 may be in one-to-one correspondence, and each sub-support plate 302a may be fixedly connected with the corresponding sub-swing arm. By way of example, the second support plate 302 located between the two second swing arms 301 may include: two sub-support plates 302a, and the two sub-support plates 302a are fixedly connected with two sub-swing arms (sub-swing arm 301a and sub-swing arm 301 b), respectively. In this case, by fixedly connecting the two sub-support plates 302a in the second support plate 302 with the two sub-swing arms in the second swing arm 301, respectively. In this way, when the flexible display panel 100 in the folded display device 000 is folded, the two sub-support plates 302a can apply a certain force to the back surface of the flexible display panel 100, so that the flexible display panel 100 is convenient to bend, and the two sub-support plates 302a do not affect the relative sliding between the two sub-swing arms in the second swing arm 301.

In an embodiment of the present application, please refer to fig. 9 and fig. 10, fig. 9 is a schematic diagram of an exploded structure of still another foldable display device according to an embodiment of the present application, and fig. 10 is a schematic diagram of an effect of switching the foldable display device shown in fig. 9 between a folded state and an unfolded state. The at least two fixed support assemblies 200 in the folding display device 000 include a first fixed support assembly B1, and the first fixed support assembly B1 may be any one of the at least two fixed support assemblies 200. The first fixed support assembly B1 may include: the rear case B11 fixedly connected to the two first swing arms 201, and in the first fixed supporting assembly B1, the rear case B11 and the two first swing arms 201 may be used to enclose the accommodating space B1. When the foldable display device 000 is in a folded state, the fixed support assembly 200 and the movable support assembly 300 may be both located in the accommodating space B1 formed by the rear case B11 and the two first swing arms 201; when the foldable display device 000 is in the unfolded state, the movable supporting component 300 may be located outside the accommodating space B1 formed by the rear case B11 and the two first swing arms 201, and the fixed supporting components of the at least two fixed supporting components 200 except for the first fixed supporting component B1 may be located outside the accommodating space B1 formed by the rear case B11 and the two first swing arms 201. In this case, by providing the rear case B11 fixedly connected to the two first swing arms 201 in the first fixed support assembly B1, the rear case B11 and the two first swing arms 201 may enclose the accommodating space B1. In this way, when the folding display device 000 is in a folded state, the receiving space b1 can receive the fixed support member 200 and the movable support member 300 in the folding display device 000, so that the overall thickness of the folding display device 000 is small and has a good external appearance effect. When the foldable display device 000 is in the unfolded state, the movable supporting member 300 in the foldable display device 000 can be located outside the receiving space B1, and other fixed supporting members than the first fixed supporting member B1 among the fixed supporting members 200 are also located outside the receiving space B1, so that the flexible display panel 100 can perform full-screen display.

Optionally, referring to fig. 11, fig. 11 is an exploded view of a foldable display device according to another embodiment of the application. The folding display device 000 may further include: the lifting assembly 400 is positioned in the accommodating space B1 formed by the rear housing B11 and the two first swing arms 201, and the lifting assembly 400 can be respectively connected with the rear housing B11 and the first support plate 202 in the first fixed support assembly B1. And the lifting assembly 400 may be configured to: in the process of switching the folded state and the unfolded state of the folded display device 000, the first support plate 202 in the first fixed support assembly B1 is driven to lift. In this case, by disposing the elevating assembly 400 in the receiving space B1 and connecting the elevating assembly 400 with the first support plate 202 in the rear case B11 and the first fixed support assembly B1, respectively, the first support plate 202 is connected with the rear surface of the flexible display panel 100. Thus, when the foldable display device 000 is switched from the folded state to the unfolded state, the lifting assembly 400 can drive the first support plate 202 to rise in the accommodating space b1, so that the flexible display panel 100 connected with the first support plate 202 can be displayed after rising, and the appearance effect of the foldable display device 000 after being unfolded is improved. When the folding display device 000 is switched from the unfolded state to the folded state, the lifting assembly 400 can drive the first support plate 202 to descend in the accommodating space b1, so that the flexible display panel 100 is located in the accommodating space b1 after being bent.

In order to more clearly see the structure of the lifting assembly in the embodiment of the present application, please refer to fig. 12 and 13, fig. 12 is a schematic diagram of connection between the lifting assembly and the rear case, and fig. 13 is an exploded schematic diagram of a part of the structure of the folding display device shown in fig. 12. The lifting assembly 400 in the folding display device 000 may include: a lifting bar 401, a slider 402 and a rotating arm 403. The lifting bar 401 in the lifting assembly 400 may be fixedly coupled with the first support plate 202 in the first fixed support assembly B1. The slider 402 in the lifting assembly 400 may be slidably connected to the rear case B11, and the rotating arm 403 in the lifting assembly 400 may be rotatably connected to the slider 402 and the end of the lifting rod 401, respectively. Wherein the rotating arm 403 in the lifting assembly 400 may be configured to: in the process of moving the slider 402 along the axial direction L2 of the lifting rod 401, the lifting rod 401 is driven to lift. For example, referring to fig. 14, fig. 14 is a schematic view illustrating an effect of lifting a lifting rod in a lifting assembly according to an embodiment of the application. When the folding display device 000 is switched from the folded state to the unfolded state, the slider 402 in the lift assembly 400 can move in a direction approaching the lift lever 401 along the axial direction L2 of the lift lever 401; the rotating arm 402 rotates under the driving of the sliding block 402, and drives the lifting rod 401 to rise in the accommodating space B1, so that the lifting rod 401 drives the first supporting plate 202 in the first fixed supporting component B1 to rise. When the folding display device 000 is switched from the unfolded state to the folded state, the slider 402 in the lift assembly 400 can move in a direction away from the lift lever 401 along the axial direction L2 of the lift lever 401; the rotating arm 403 rotates under the driving of the sliding block 402, and drives the lifting rod 401 to descend in the accommodating space B1, so that the lifting rod 401 drives the first supporting plate 202 in the first fixed supporting component B1 to descend.

For example, the number of sets of the lifting assembly 400 may be at least one set. For example, the number of the lifting assemblies 400 may be two, and the first support plate 202 of the first fixed support assembly B1 is located between the two lifting assemblies 400. And both sides of the first support plate 202 may be fixedly connected with two lifting bars 401 of the two sets of lifting assemblies 400, respectively. In this manner, effective support of the first support plate 202 is further ensured by the two lift assemblies 400. In the present application, the receiving space B1 enclosed by the rear case B11 and the two first swing arms 201 in the first fixed support assembly B1 may have an opening B11 for folding or unfolding the flexible display panel 100. After the flexible display panel 100 in the folded display device 000 is completely unfolded, the display surface of the flexible display panel 100 may be coplanar with the surface of the accommodating space b1 where the opening b11 is located. In this way, the appearance effect of the folded display device 000 after being unfolded is further improved.

As an example, as shown in fig. 13, a bottom surface B12 of the rear case B11 (the bottom surface B12 may be a surface opposite to the opening B11 of the receiving space B1) may have a first slider B2, and the slider 402 may have a second slider c1 coupled to the first slider B2 in a mating manner. In this way, the slider 402 and the rear case B11 can be slidably coupled by the first slider B2 and the second slider c1. For example, the first slider b2 may be a chute, and the second slider c1 may be a protrusion engaged with the chute; or the first sliding member b2 may be a protrusion, and the second sliding member c1 may be a chute, which is not particularly limited in the embodiment of the present application. In the embodiment of the present application, the first sliding member b2 is taken as a protrusion, and the second sliding member c1 is taken as a chute for illustration.

Alternatively, referring to fig. 14, 15 and 16, fig. 15 is a schematic view of an effect of the folding display device provided by the embodiment of the application when the folding display device is fully unfolded, and fig. 16 is a schematic view of an effect of the folding display device provided by the embodiment of the application when the folding display device is fully folded. The slider 402 and the rotating arm 403 in the lifting assembly 400 may be distributed at the first end of the lifting rod 401, and the first end of the lifting rod 401 may be: when the folding display device 000 is in the unfolded state, the lifting lever 401 approaches the end of the second swing arm 301. The end of the second swing arm 301 of the movable support assembly 300 rotatably connected to the first swing arm 201 of the first fixed support assembly B1 may have: first drive protrusion 301c and/or second drive protrusion 301d. Wherein the first driving protrusion 301c in the second swing arm 301 may be configured to: in the process of switching the folding display device 000 from the folding state to the unfolding state, a driving force is applied to the slider 402 to drive the lifting bar 401 to ascend; the second driving protrusion 301d may be configured to: in the process of switching the folding display device from the unfolded state to the folded state, a driving force is applied to the slider 402 to drive the lifting bar 401 to descend.

For example, in the process of switching the folding display device 000 from the folded state to the unfolded state, the second swing arm 301 rotates in a direction opposite to the first direction f1 with respect to the first swing arm 201 in the first fixed supporting assembly B1, and the first driving protrusion 301c of the end portion of the second swing arm 301 applies a force to the slider 402 after rotating to a certain angle; then, the rotating arm 403 rotates and drives the lifting rod 401 to lift in a direction away from the rear housing B11, so that the lifting rod 401 drives the first support plate 202 in the first fixed support assembly B1 to lift. In the process of switching the folding display device 000 from the unfolded state to the folded state, the second swing arm 301 rotates in the first direction f1 with respect to the first swing arm 201 in the first fixed supporting assembly B1, and the second driving protrusion 301d of the end of the second swing arm 301 applies a force to the slider 402 after rotating to a certain angle; then, the rotating arm 403 rotates and drives the lifting rod 401 to descend in a direction approaching the rear case B11, so that the lifting rod 401 drives the first support plate 202 in the first fixed support assembly B1 to descend.

There are several different implementations of the embodiments of the present application for the placement of the first drive protrusion 301c and the second drive protrusion 301d on two oppositely disposed second swing arms 301 in the movable support assembly 300, the following embodiments are schematically illustrated by way of two alternative implementations:

In a first alternative implementation, the end of the second swing arm 301 may have both the first driving protrusion 301c and the second driving protrusion 301d, and the first driving protrusion 301c and the second driving protrusion 301d are disposed opposite to each other at the end of the second swing arm 301. That is, the end of one second swing arm 301 may have both the first driving protrusion 301c and the second driving protrusion 301d, and the end of the other second swing arm 301 is not provided with the first driving protrusion 301c and the second driving protrusion 301d; or the ends of the two second swing arms 301 may have both the first driving protrusion 301c and the second driving protrusion 301d. For example, after the folding display device 000 is switched from the folded state to the unfolded state, the first driving protrusion 301c may be closer to the rear case B11 than the second driving protrusion 301d; after the folded display device 000 is switched from the unfolded state to the folded state, the second driving protrusion 301d is closer to the rear case B11 than the first driving protrusion 301 c.

In a second alternative implementation, as shown in fig. 14 and 16, an end of one second swing arm 301 of the two second swing arms 301 may have a first driving protrusion 301c, and an end of the other second swing arm 301 may have a second driving protrusion 301d. The principle of the first driving protrusion 301c and the second driving protrusion 301d driving the slider 403 to move in two implementations may refer to the description in the foregoing, and will not be described in detail herein.

In an embodiment of the present application, as shown in fig. 13, 14, 15 and 16, the slider 402 in the lifting assembly 400 may include: a slider body 4021 slidably connected to the rear case B11, and a force receiving portion 4022 fixedly connected to a side of the slider body 4021 facing away from the rear case B11. The end of the slider body 4021 may be rotatably connected to the end of the rotating arm 403, and the force receiving portion 4022 may be distributed at an end of the slider body 4021 facing away from the rotating arm 403. In the process of switching the folded display device 000 from the folded state to the unfolded state, the first driving protrusion 301c in the second swing arm 301 may abut against a side of the force receiving portion 4022 in the slider 402 facing away from the lifting bar 401 in the sliding direction of the slider body 4021. In the process of switching the folded display device 000 from the unfolded state to the folded state, the second driving protrusion 301d in the second swing arm 301 abuts on the side of the force receiving portion 4022 in the slider 402 near the lifting lever 401. In the present application, a side of the slider body 4021 facing away from the force receiving portion 4022 may have a second slider c1 for sliding the slider body 4021 in the rear housing B11. In addition, the bottom surface B12 of the rear case B11 may further have a stopper c4 fixedly connected to an end portion of the first slider B2 near the second swing arm 301. In this way, the stopper c4 can effectively prevent the slider body 4021 from being separated from the first slider b2 when sliding in the direction away from the lifting bar 401.

By way of example, during switching of the folded display device 000 from the folded state to the unfolded state, the second swing arm 301 rotates in a direction opposite to the first direction f1 with respect to the first swing arm 201 in the first fixed support assembly B1; in the direction in which the slider body 4021 slides, the first driving protrusion 301c in the second swing arm 301 may abut against a side of the force receiving portion 4022 in the slider 402 facing away from the lifting bar 401, so that the first driving protrusion 301c applies a force to the force receiving portion 4022 in the slider 402. During the switching of the folded display device 000 from the unfolded state to the folded state, the second swing arm 301 rotates in the first direction f1 with respect to the first swing arm 201 in the first fixed support assembly B1; in the direction in which the slider body 4021 slides, the second driving protrusion 301d in the second swing arm 301 abuts against the side of the force receiving portion 4022 in the slider 402 near the lifting lever 401, so that the second driving protrusion 301d applies a force to the force receiving portion 4022 in the slider 402.

Optionally, as shown in fig. 13, the lifting assembly 400 may further include: an auxiliary slider 404 and an auxiliary rotating arm 405, which auxiliary slider 404 and auxiliary rotating arm 405 may be distributed at a second end of the lifting lever 401 (the second end of the lifting lever is an end opposite to the first end of the lifting lever). Wherein, the auxiliary slider 404 may be slidably connected to the rear case B11, the auxiliary rotating arm 405 may be rotatably connected to the auxiliary slider 404 and the second end of the lifting bar 401, respectively, and the sliding direction of the auxiliary slider 404 may be parallel to the sliding direction of the slider 402. In this case, by providing the auxiliary slider 404 and the auxiliary rotating arm 405 at the second end portion of the lifting lever 401, the auxiliary slider 404 and the auxiliary rotating arm 405 increase the stability of the lifting lever 401 moving during lifting while having a good supporting effect on the lifting lever 401. For example, in the process of switching the folding display device 000 from the folded state to the unfolded state, the slider 402 and the auxiliary slider 404 can each be moved in a direction approaching the lift lever 401 along the axial direction L2 of the lift lever 401 and provide stable support in the process of lifting the lift lever 401. During the switching of the folding display device 000 from the unfolded state to the folded state, the slider 402 and the auxiliary slider 404 can both move in a direction away from the lifting lever 401 along the axial direction L2 of the lifting lever 401 and provide stable support during the lowering of the lifting lever 401.

By way of example, the structures of the auxiliary slider 404 and the slider 402 may be identical. The auxiliary slider 404 may have a third slider c2, and the rear case B11 may also have a fourth slider c3 fixed to the bottom surface B12, the third slider c2 and the fourth slider c3 being cooperatively slid. For example, one of the third slider c2 and the fourth slider c3 may be a chute, and the other may be a protrusion, which is not particularly limited in the embodiment of the present application. It should be noted that, in the embodiment of the present application, the third sliding member c2 is taken as a chute, the fourth sliding member c3 is taken as a protrusion for illustration, and the fourth sliding member c3 and the first sliding member b2 may be in an integrated structure.

In an embodiment of the present application, as shown in fig. 13, the lifting assembly 400 may further include: a guide bar 406 fixed in the accommodating space B1 formed by the two first swing arms 201 in the rear case B11 and the first fixed support assembly B1, and an axial direction of the guide bar 406 may be perpendicular to an axial direction of the lifting bar 401. In addition, the lifting rod 401 may have a guide hole d1, the lifting rod 401 may be sleeved on the guide rod 406 through the guide hole d1, and the lifting rod 401 may be slidably connected with the guide rod 406. In this case, by providing the guide bar 406 in the accommodation space b1, the axial direction of the guide bar 406 is perpendicular to the axial direction of the lifting bar 401. In this way, in the lifting process of the lifting rod 401, the lifting rod 401 can not generate a bad phenomenon of displacement, and further, the bad phenomenon of displacement of the flexible display panel 100 in the lifting process is avoided. For example, the number of the guide bars 406 provided in the receiving space b1 may be at least one. For example, one lifting bar 401 may be guided by two guide bars 406.

Optionally, referring to fig. 17, fig. 17 is a schematic diagram illustrating an effect of switching between a folded state and an unfolded state of the folding display device according to the embodiment of the application. A movable supporting component 300 may be disposed between the first fixed supporting component B1 and the second fixed supporting component B2 in the fixed supporting components 200, and the second fixed supporting component B2 may be a fixed supporting component adjacent to the first fixed supporting component B1 in the at least two fixed supporting components 200. In the process of switching the folded state and the unfolded state of the folded display device 000, the direction in which the movable supporting member 300 rotates with respect to the first fixed supporting member B1 may be opposite to the direction in which the second fixed supporting member B2 rotates with respect to the movable supporting member 300. For example, during the switching of the folding display device 000 from the folded state to the unfolded state, the movable supporting member 300 may be rotated in a direction opposite to the first direction f1 with respect to the first fixed supporting member B1, and the second fixed supporting member B2 may be rotated in the first direction f1 with respect to the movable supporting member 300. During the process of switching the folded display device 000 from the unfolded state to the folded state, the movable supporting component 300 can rotate along the first direction f1 relative to the first fixed supporting component B1, the second fixed supporting component B2 rotates along the direction opposite to the first direction f1 relative to the movable supporting component 300, and the portion of the flexible display panel 100 corresponding to the second fixed supporting component B2 can still provide a display screen for the user after folding. In addition, the first support plate 202 located between the two first swing arms 201 in the second fixed support assembly B2 may be fixedly connected with the two first swing arms 201, and provide a better supporting effect for the flexible display panel 100 during the switching process of the folded state and the unfolded state of the folded display device 000.

In an embodiment of the present application, please refer to fig. 18, fig. 18 is a schematic diagram of a structure of another folding display device according to another embodiment of the present application. In the process of switching the folding display device 000 from the folded state to the unfolded state, in order to provide a certain damping effect or self-hovering capability between the fixed support assembly 200 and the movable support assembly 300, the flexible display panel 100 can be at different angular positions when unfolded or folded. The folding display device 000 may further include: a torsion assembly 500 located between the first swing arm 201 in the fixed support assembly 200 and the second swing arm 301 in the movable support assembly 300, the torsion assembly 500 may be configured to: during rotation of the first swing arm 201 relative to the second swing arm 301, a damping force is provided. Illustratively, a movable support assembly 300 is disposed between a first fixed support assembly B1 and a second fixed support assembly B2. Torsion assembly 500 may include: a first torsion assembly 501 located between the first swing arm 201 in the first fixed support assembly B1 and one end of the second swing arm 301 in the movable support assembly 300, and/or a second torsion assembly 502 located between the first swing arm 201 in the second fixed support assembly B2 and the other end of the second swing arm 301 in the movable support assembly 300. In this way, the damping and self-hovering effects between the first fixed support assembly B1 and the movable support assembly 300, and/or between the second fixed support assembly B2 and the movable support assembly 300 can be achieved through the first torsion assembly 501 and/or the second torsion assembly 502.

Alternatively, as shown in fig. 18, the torsion assembly 500 between the first swing arm 201 and the second swing arm 301 may include: a plurality of first cams C1 fixedly connected to the end portions of the first swing arm 201, and a plurality of second cams C2 fixedly connected to the end portions of the second swing arm 301, the plurality of first cams C1 being disposed opposite to the plurality of second cams C2. By way of example, a first torsion assembly 501 is illustrated between a first swing arm 201 in a first stationary support assembly B1 and a second swing arm 301 in a movable support assembly 300. When the first fixed support assembly B1 and the movable support assembly 300 are in the fully unfolded state, the protrusion in the first cam C1 may be just located in the recess (not shown) between two adjacent second cams in the plurality of second cams C2, so that the first fixed support assembly B1 and the movable support assembly 300 can maintain the specific angle. And when the user touches or presses the flexible display panel 100, the first fixed supporting member B1 and the movable supporting member 300 are not easily folded by an external force. When the first fixed support assembly B1 and the movable support assembly 300 are in the fully folded state, the protruding portion of the first cam C1 may be just located in the recessed portion between two adjacent second cams C2 of the plurality of second cams C2, so that the first fixed support assembly B1 and the movable support assembly 300 can maintain the specific angle. And when the user touches or presses the flexible display panel 100, the first fixed support member B1 and the movable support member 300 are not easily unfolded by an external force, so that the safety performance of the folding display device 000 can be ensured.

In summary, an embodiment of the present application provides a folding display device, which may include: the flexible display panel, fixed support subassembly and movable support subassembly. The movable supporting component in the folding display device is hinged to one side of the fixed supporting component, and the flexible display panel cover is arranged on the supporting surface of the fixed supporting component and the supporting surface of the movable supporting component. And the movable supporting component can stretch out and draw back in the switching process of the folding state and the unfolding state of the folding display device (namely, the movable supporting component can adjust the length of the movable supporting component in the process that the fixed supporting component and the movable supporting component drive the flexible display panel to fold so as to extend or shorten the length of a connecting rod mechanism formed by the fixed supporting component and the movable supporting component, thereby continuously adapting to the deformation of the flexible display panel in the folding or unfolding process). Therefore, in the folding or unfolding process, the fixed support assembly and the movable support assembly basically cannot squeeze or pull the flexible display panel, and the probability of damage to the flexible display panel after being folded for many times is reduced. In addition, after the folding display device is folded, the volume of the folding display device is effectively reduced, so that portability is improved.

In the present disclosure, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless explicitly defined otherwise.

The foregoing description of the preferred embodiments of the present application is not intended to limit the application, but is intended to cover all modifications, equivalents, alternatives, and improvements falling within the spirit and principles of the application.

Claims (17)

1. A folding display device, comprising: a flexible display panel (100), a fixed support assembly (200), and a movable support assembly (300);

At least one side of the fixed support component (200) is hinged with the movable support component (300), the fixed support component (200) and the movable support component (300) are provided with support surfaces, and the flexible display panel (100) is covered on the support surfaces of the fixed support component (200) and the movable support component (300);

The folding display device has a folded state and an unfolded state, and when the folding display device is in the folded state, the fixed support assembly (200) and the movable support assembly (300) are stacked; when the folding display device is in the unfolded state, the supporting surface (m 1) of the fixed supporting component (200) and the supporting surface (m 2) of the movable supporting component (300) are coplanar;

Wherein the movable supporting assembly (300) can stretch and retract in the process of switching the folding state and the unfolding state of the folding display device.

2. The folding display device according to claim 1, wherein the fixed support assembly (200) includes: two oppositely arranged first swing arms (201), and a first support plate (202) located between the two first swing arms (201), wherein the first support plate (202) is connected with the flexible display panel (100).

3. The folding display device according to claim 2, wherein the movable supporting member (300) includes: two oppositely arranged second swing arms (301), and a second support plate (302) located between the two second swing arms (301), wherein the second support plate (302) is arranged separately from the flexible display panel (100).

4. A folding display device according to claim 3, characterized in that the number of fixed support assemblies (200) is at least two, and the number of movable support assemblies (300) is at least one;

At least one movable supporting component (300) is distributed between two adjacent fixed supporting components (200), the end part of the first swing arm (201) is rotationally connected with the end part of the second swing arm (301), and the second swing arm (301) can stretch and retract in the length direction of the second swing arm (301).

5. The folding display device according to claim 4, wherein the second swing arm (301) includes: the device comprises at least two sub-swing arms, wherein every two adjacent sub-swing arms in the at least two sub-swing arms are connected in a sliding mode, and the end parts of the two outermost sub-swing arms in the at least two sub-swing arms are respectively connected with the end parts of a first swing arm (201) in two adjacent fixed support assemblies (200) in a rotating mode.

6. The folding display device according to claim 5, wherein in two adjacent sub-swing arms, one end of the sub-swing arm has a slide groove (A1), and the other end of the sub-swing arm is located in the slide groove (A1).

7. The folding display device according to claim 5, wherein the second support plate (302) includes: the device comprises at least two sub-supporting plates (302 a), wherein the at least two sub-supporting plates (302 a) are in one-to-one correspondence with the at least two sub-swinging arms, and each sub-supporting plate (302 a) is fixedly connected with the corresponding sub-swinging arm.

8. A folding display device according to any one of claims 4 to 7, characterized in that the first fixed support assembly (B1) comprises: a rear shell (B11) fixedly connected with the two first swing arms (201), wherein in the first fixed support assembly (B1), the rear shell (B11) and the two first swing arms (201) are used for enclosing a containing space (B1);

Wherein the first fixed support assembly (B1) is any one of the at least two fixed support assemblies (200); when the folding display device is in the folding state, the fixed support component (200) and the movable support component (300) are both positioned in the accommodating space (b 1); when the folding display device is in the unfolded state, the movable supporting component (300) is located outside the accommodating space (B1), and the fixed supporting components except the first fixed supporting component (B1) in the at least two fixed supporting components (200) are located outside the accommodating space (B1).

9. The folding display device according to claim 8, further comprising: a lifting assembly (400) located in the accommodating space (B1), the lifting assembly (400) being connected with the rear case (B11) and the first support plate (202) in the first fixed support assembly (B1), respectively, and the lifting assembly (400) being configured to: and in the switching process of the folding display device between the folding state and the unfolding state, the first supporting plate (202) in the first fixed supporting component (B1) is driven to lift.

10. The folding display device according to claim 9, wherein the lifting assembly (400) includes: a lifting rod (401), a sliding block (402) and a rotating arm (403);

the lifting rod (401) is fixedly connected with a first supporting plate (202) in the first fixed supporting assembly (B1), the sliding block (402) is in sliding connection with the rear shell (B11), and the rotating arms (403) are respectively in rotating connection with the sliding block (402) and the end parts of the lifting rod (401).

11. The folding display device according to claim 10, wherein the slider (402) and the rotating arm (403) are each distributed at a first end of the lifting lever (401), and the first end of the lifting lever (401) is: when the folding display device is in the unfolding state, the lifting rod (401) is close to the end part of the second swing arm (301);

the end part of the second swing arm (301) rotatably connected with the first swing arm (201) in the first fixed support assembly (B1) is provided with: a first drive protrusion (301 c) and/or a second drive protrusion (301 d);

Wherein the first driving protrusion (301 c) is configured to: in the process of switching the folding display device from the folding state to the unfolding state, driving force is applied to the sliding block (402) so as to drive the lifting rod (401) to ascend; the second driving protrusion (301 d) is configured to: and in the process of switching the folding display device from the unfolding state to the folding state, driving force is applied to the sliding block (402) so as to drive the lifting rod (401) to descend.

12. The folding display device according to claim 11, wherein the slider (402) includes: the sliding block comprises a sliding block body (4021) which is in sliding connection with a rear shell (B11), and a force receiving part (4022) which is fixedly connected with one side of the sliding block body (4021) which is away from the rear shell (B11), wherein the end part of the sliding block body (4021) is rotationally connected with the end part of the rotating arm (403), and the force receiving part (4022) is distributed at one end of the sliding block body (4021) which is away from the rotating arm (403);

Wherein, in the process of switching the folding display device from the folding state to the unfolding state, the first driving protrusion (301 c) is abutted with one side of the stress part (4022) away from the lifting rod (401) in the sliding direction of the sliding block body (4021); in the process of switching the folding display device from the unfolding state to the folding state, the second driving protrusion (301 d) is abutted with one side, close to the lifting rod (401), of the stress part (4022) in the sliding direction of the sliding block body (4021).

13. The folding display device of claim 11, wherein the lifting assembly (400) further comprises: auxiliary sliding block (404) and auxiliary rotating arm (405), auxiliary sliding block (404) with auxiliary rotating arm (405) all distributes in lifter (401) second tip department, auxiliary sliding block (404) with backshell (B11) sliding connection, auxiliary rotating arm (405) respectively with auxiliary sliding block (404) with lifter (401) second tip swivelling joint, the slip direction of auxiliary sliding block (404) with slider (402) slip direction is parallel.

14. The folding display device according to any one of claims 10 to 13, wherein the lifting assembly (400) further comprises: the guide rod (406) is fixed in the accommodating space (b 1), the axial direction of the guide rod (406) is perpendicular to the axial direction of the lifting rod (401), the lifting rod (401) is provided with a guide hole (d 1), the lifting rod (401) is sleeved on the guide rod (406) through the guide hole (d 1), and the guide rod (406) is in sliding connection with the lifting rod (401).

15. The foldable display device according to any one of claims 9 to 13, wherein one of the movable support assemblies (300) is distributed between the first fixed support assembly (B1) and a second fixed support assembly (B2), the second fixed support assembly (B2) being a fixed support assembly of the at least two fixed support assemblies (200) adjacent to the first fixed support assembly (B1);

during the switching process of the folding display device between the folding state and the unfolding state, the rotating direction of the movable supporting component (300) relative to the first fixed supporting component (B1) is opposite to the rotating direction of the second fixed supporting component (B2) relative to the movable supporting component (300).

16. The foldable display device according to any one of claims 4-7, 9-13, wherein the foldable display device further comprises: -a torsion assembly (500) located between the first swing arm (201) and the second swing arm (301), the torsion assembly (500) being configured to: during rotation of the first swing arm (201) relative to the second swing arm (301), a damping force is provided.

17. The foldable display device of claim 16, wherein the torsion assembly (500) comprises: the first cams (C1) are fixedly connected with the end parts of the first swing arms (201), and the second cams (C2) are fixedly connected with the end parts of the second swing arms (301), and the first cams (C1) are arranged opposite to the second cams (C2).