CN111188972B

CN111188972B - Screen support and electronic equipment

Info

Publication number: CN111188972B
Application number: CN202010133660.2A
Authority: CN
Inventors: 谭天水; 施金忠; 韩亮; 张然
Original assignee: Lenovo Beijing Ltd
Current assignee: Lenovo Beijing Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2022-01-18
Anticipated expiration: 2040-02-28
Also published as: CN111188972A

Abstract

The present disclosure provides a screen support. The screen support comprises a first support, a second support and a sliding assembly. Wherein the second bracket is hinged with the first bracket. The first support and the second support can be opened and closed relatively. The sliding component is movably arranged on the first surface of the first support. Wherein, the sliding component can move along a first straight line compared with the first bracket. The first straight line and the first surface satisfy a parallel condition. The present disclosure also provides an electronic device.

Description

Screen support and electronic equipment

Technical Field

The present disclosure relates to a screen support and an electronic apparatus.

Background

When the folding electronic device is opened or closed, the flexible screen is stretched or compressed, so that deformation occurs. It is easy to cause damage to the flexible screen.

Disclosure of Invention

One aspect of the present disclosure provides a screen support. The screen support comprises a first support, a second support and a sliding assembly. Wherein the second bracket is hinged with the first bracket. The first support and the second support can be opened and closed relatively. The sliding component is movably arranged on the first surface of the first support. Wherein, the sliding component can move along a first straight line compared with the first bracket. The first straight line and the first surface satisfy a parallel condition.

Optionally, the sliding assembly comprises a sliding plate and a sliding mechanism. The sliding plate is movably arranged on the first surface through the sliding mechanism.

Optionally, the sliding mechanism comprises a first guide rail and a first slider. The first guide rail is arranged on the first support, and the guide direction of the first guide rail and the first straight line meet the parallel condition. The first sliding block is fixedly connected with the sliding plate and movably arranged in the first guide rail, and the first sliding block can move along the guide direction of the first guide rail.

Optionally, the sliding mechanism further comprises a tensioning structure. The tensioning structure is arranged between the first bracket and the sliding plate and used for providing force along a second straight line for the sliding plate, and the second straight line and the first straight line meet a parallel condition.

Optionally, the tensioning structure comprises a guide rod, a stop, a second slider, an elastic member, and a second guide rail. The guide rod is arranged on the first support, and the extending direction of the guide rod and the first straight line meet the parallel condition. The stop block is fixedly arranged on the guide rod and fixedly connected with the first support. The second sliding block is movably arranged on the guide rod and is fixedly connected with the sliding plate. The elastic piece is sleeved on the guide rod and is positioned between the stop block and the second sliding block. The second guide rail is arranged on the first bracket, and the second sliding block is movably arranged in the second guide rail; wherein the guide direction of the second guide rail and the first line satisfy a parallel condition.

Optionally, a rotating shaft structure is arranged between the first support and the second support, and the rotating shaft structure includes a rotating shaft core and two connecting portions. The two connecting parts are respectively connected with the rotating shaft core in a rotating mode. The two connecting parts are respectively connected with the first support and the second support, so that the first support and the second support can be opened and closed relatively by taking the rotating shaft core as a shaft.

Optionally, at least a portion of the second surface of the second support is for fixed connection with a flexible screen. At least a portion of the third surface of the sliding assembly is adapted to be fixedly coupled to the flexible screen. Wherein the third surface is a surface of the sliding assembly distal from the first bracket.

Optionally, a first free area is disposed on the first surface, the first free area is located on one side of the first surface close to the second support, and a surface of the first free area is coplanar with the third surface, wherein the first free area is not connected to the flexible screen.

Optionally, a second free area is arranged on the second surface, and the second free area is positioned on one side of the second surface close to the first bracket; wherein the second free area is not connected to the flexible screen.

Optionally, the screen support further comprises a self-locking structure. The self-locking structure is arranged on the first support and/or the second support and used for fixing the relative positions of the first support and the second support.

Another aspect of the present disclosure provides an electronic device. The electronic device includes: a flexible screen and a screen support as described above.

According to an embodiment of the present disclosure, a flexible screen may be installed in the screen support, wherein the flexible screen may be fixedly connected with the sliding assembly and the second support, respectively. In this way the flexible screen and the first support are substantially movable relative to each other. Therefore, when the first support and the second support are relatively opened and closed, the flexible screen can drive the sliding assembly to displace relative to the first support, and the relative position change generated in the relative opening and closing process of the first support and the second support is compensated, so that the stretching or the compression of the flexible screen in the folding process of the electronic equipment can be reduced or even avoided to a certain extent, the deformation of the flexible screen is further reduced or even avoided, the service performance and the service life of the flexible screen are improved, and the overall stability of the electronic equipment can be improved.

Drawings

For a more complete understanding of the present disclosure and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:

fig. 1A and 1B schematically illustrate an electronic device according to an embodiment of the present disclosure;

fig. 2A and 2B schematically illustrate plan views of a screen support in different states according to an embodiment of the present disclosure;

FIG. 3A schematically illustrates a plan view of the back side of the screen support shown in FIG. 2A;

FIG. 3B schematically illustrates a plan view of the back side of the screen support shown in FIG. 2B; and

fig. 4 schematically illustrates a perspective view of a portion a of the screen support shown in fig. 3A.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B and C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.). Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention (e.g., "a system having at least one of A, B or C" would include but not be limited to systems that have a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc.).

In the context of the present disclosure, when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or other elements may be present therebetween. In addition, if a component is "on" another component in one orientation, that component may be "under" the other component when the orientation is reversed. When an element is referred to as being "between" two other elements, it can be directly between the two other elements or intervening elements may also be present.

Flexible screens are commonly used in folding electronic devices. In the related art, no matter the flexible screen is located in the folded-in electronic device inside after being folded, or the flexible screen is exposed outside before and after being folded, deformation such as stretching or compression of the flexible screen can occur during the folding process, and then an acting force between the flexible screen and other main bodies (for example, a keyboard body and the like) of the electronic device is caused, which can damage the flexible screen and the electronic device, and can reduce the service life of the flexible screen and the electronic device. In this regard, various embodiments of the present disclosure provide a screen support that seeks to address at least some of the deficiencies found in the related art.

A screen support according to various embodiments of the present disclosure includes a first support, a second support, and a sliding assembly. Wherein the second bracket is hinged with the first bracket. The first support and the second support can be opened and closed relatively. The sliding component is movably arranged on the first surface of the first support. Wherein, the sliding component can move along a first straight line compared with the first bracket. The first straight line and the first surface satisfy a parallel condition.

A flexible screen may be mounted in the screen support, wherein the flexible screen may be fixedly connected with the sliding assembly and the second support, respectively. In this way the flexible screen and the first support are substantially movable relative to each other. Therefore, when the first support and the second support are relatively opened and closed, the flexible screen can drive the sliding assembly to displace relative to the first support, and the relative position change generated in the relative opening and closing process of the first support and the second support is compensated, so that the stretching or the compression of the flexible screen in the folding process of the electronic equipment can be reduced or even avoided to a certain extent, the deformation of the flexible screen is further reduced or even avoided, the service performance and the service life of the flexible screen are improved, and the overall stability of the electronic equipment can be improved.

According to the screen support of the embodiment of the present disclosure, a rotating shaft structure is arranged between the first support and the second support, wherein the rotating shaft structure may include a rotating shaft core and two connecting portions. The two connecting parts are respectively connected with the first support and the second support, so that the first support and the second support can be opened and closed relatively by taking the rotating shaft core as a shaft.

In some embodiments, the first bracket and the second bracket may be relatively opened and closed, and the first bracket and the second bracket respectively rotate around the rotating shaft core. Thus, when the flexible screen is installed in the screen support and is folded along with the screen support, the flexible screen can drive the sliding assembly to move relative to the first support.

In other embodiments, the first and second brackets may be relatively opened and closed such that the first and second brackets respectively rotate about the rotation axis and move toward or away from the rotation axis. For example, a movable structure that is movable relative to the first bracket and the second bracket is provided in the two connecting portions of the pivot structure, so that the first bracket and the second bracket can move toward or away from the pivot core by the movable structure while rotating about the pivot core after the first bracket and the second bracket are connected to the pivot core by the movable structure, respectively. In some embodiments, the design of the motion trajectory of the movable structure (e.g., the motion trajectory obtained based on the correspondence between the included angle of the two connecting portions and the distance of the first support with respect to the rotation axis core) may be designed according to the relative movement relationship between the flexible screen and the rotation axis core during the folding process of the electronic device. If the manufacturing accuracy of the movable structure in the rotating shaft structure meets the theoretical design requirement, the first support and the second support can be synchronized with the movement of the flexible screen in the folding process, so that the stretching or compression deformation of the flexible screen can be avoided only by the movement of the first support and the second support relative to the rotating shaft core, in other words, the flexible screen can be kept static relative to the first support. However, in actual production, there is often an error between the theoretical design size of the movable structure and the final part product size. In this case, if there is no sliding component in the screen support, which can passively adjust the relative displacement between the flexible screen and the first support, the flexible screen may be uneven or the folds may be damaged, which may affect the service life and appearance of the electronic device. In view of the above, the screen support according to the embodiment of the present disclosure is provided with the sliding assembly, and the sliding assembly may be displaced relative to the first support under the traction of the flexible screen, so as to offset or absorb deformation stress such as unevenness or wrinkles of the flexible screen, which may be caused by a processing error. In this way, errors generated by processing and assembling parts such as a rotating shaft structure can be reduced, the processing precision of the screen support is reduced, and the flexibility allowance of the screen support is improved.

The electronic device and the screen holder according to the embodiment of the present disclosure are exemplarily described below with reference to fig. 1A to 4.

Fig. 1A and 1B schematically illustrate an electronic device 100 according to an embodiment of the disclosure.

As shown in fig. 1A and 1B, the electronic device 100 may include a screen support 10 and a flexible screen 20, wherein the flexible screen 20 is mounted on the screen support 10.

Comparing fig. 1A and 1B, the electronic device 100 may be folded. For example, two portions of the screen support 10 of the electronic device 100 can be opened and closed relatively, so as to fold the flexible screen 20.

It is to be understood that the inflections of the electronic device 100 shown in fig. 1A and 1B are exemplary only and not limiting. In other embodiments, electronic device 100 may also be a fold-out electronic device.

The application scenarios in fig. 1A and 1B are only an example, and the electronic device 100 may be other electronic devices besides a notebook computer, for example, various mobile phones, tablet computers, electronic dictionaries, game machines, learning machines, various medical devices, and the like.

Fig. 2A and 2B schematically illustrate plan views of the screen support 10 in different states according to an embodiment of the present disclosure. More specifically, fig. 2A and 2B schematically illustrate a top view of the screen support 10 after the flexible screen 20 is removed in fig. 1A.

Referring to fig. 2A and 2B, the screen support 10 according to the embodiment of the present disclosure includes a first support 11, a second support 12, and a sliding assembly 13. Wherein the second bracket 12 is hinged with the first bracket 11. The first bracket 11 and the second bracket 12 can be opened and closed relatively. The sliding member 13 is movably disposed on the first surface 111 of the first bracket 11. Wherein the sliding component 13 can move along the first line i compared with the first bracket 11. The first line i and the first surface 111 satisfy a parallel condition.

The first straight line i and the first surface 111 satisfy a parallel condition, for example, the first straight line i and the first surface 111 may be parallel, or a parallel relationship between the first straight line i and the first surface 111 includes a certain tolerance margin.

The flexible screen 20 may be secured in part to the second support 12 and in part to the slide assembly 13. So that the flexible screen 20 can move along the first line i with respect to the first support 11 by sliding the sliding 1 assembly 13 during the relative opening and closing of the first support 11 with respect to the second support 12. Specifically, comparing the position of the slide assembly 13 with respect to the first bracket 11 in fig. 2A and 2B, it is apparent that the slide assembly 13 moves from near the inner side of the first bracket 11 to near the outermost side of the first bracket 11 along the first straight line i in fig. 2A to 2B.

According to an embodiment of the present disclosure, at least a portion of the second surface 121 of the second support 12 is for fixed connection with the flexible screen 20. At least a portion of the third surface 131 of the sliding assembly 13 is adapted to be fixedly coupled to the flexible screen 20. The third surface 131 is a surface of the sliding member 13 away from the first bracket 11. For example, double-sided adhesive tape may be used to adhesively fix the corresponding position of the flexible screen 20 to the second surface 121 of the second support 12 and the third surface 131 of the sliding assembly 13.

The first surface 111 is provided with a first free area 112, the first free area 112 is located on one side of the first surface 111 close to the second support 12, and a surface of the first free area 112 is coplanar with the third surface 131, wherein the first free area 121 is not connected with the flexible screen 20.

A second free area 122 is arranged on the second surface 121, and the second free area 122 is positioned on one side of the second surface 121 close to the first support 11; wherein the second free area 122 is not connected to the flexible screen 20.

The first free area 112 and/or the second free area 122 are not connected to the flexible screen 20, and the first free area 112 and/or the second free area 122 are located between the portion of the second bracket 12 for fixing with the flexible screen 20 and the sliding assembly 13. Thus, the flexible screen 20 can be divided into three parts along the first straight line i, including a fixed part fixedly connected to the screen support 10, a freely movable part not connected to the screen support 10, and a sliding part slidable with respect to the screen support 10. So that the displacement of the flexible screen 20 relative to the screen support 10 can be adjusted by the sliding of the sliding portion relative to the screen support 10 when the flexible screen 20 changes in form or position in the folded and unfolded states.

In this way, according to the screen support 10 of the embodiment of the present disclosure, in the folding process of the electronic device 100, the deformation of the flexible screen 20 can be reduced to some extent, and then the acting force between the flexible screen 20 and the screen support 10 is reduced or avoided, so that the service performance and the service life of the flexible screen 20 are improved, and the overall stability of the electronic device 100 is improved.

Fig. 3A schematically illustrates a plan view of the back of the screen support 10 shown in fig. 2A. Fig. 3B schematically illustrates a plan view of the back side of the screen support 10 shown in fig. 2B.

Referring to fig. 2A to 3B, in the screen support 10, a rotating shaft structure 14 is disposed between the first support 11 and the second support 12. The rotating shaft structure 14 includes a rotating shaft core 141 and two connecting portions 142. The two connecting portions 142 are rotatably connected to the rotating shaft core 141, respectively. The two connecting portions 142 are respectively connected to the first bracket 11 and the second bracket 12, so that the first bracket 11 and the second bracket 12 can be relatively opened and closed with the rotating shaft core 141 as an axis.

In one embodiment, the hinge structure 14 may be a common hinge, wherein the first bracket 11 and the second bracket 12 are respectively rotated only around the hinge core 141.

In another embodiment, the spindle structure 14 may be more complex. As described above, for example, the two connecting portions 142 may include a movable structure that can rotate the first bracket 11 and the second bracket 12 about the rotating shaft core 141, while also being movable relative to the rotating shaft core 141 to approach or separate from the rotating shaft core 141.

With continued reference to fig. 2A-3B, in the screen support 10, the sliding assembly 13 may include a sliding plate 31 and a sliding mechanism 32 according to an embodiment of the present disclosure. Wherein, the sliding plate 31 is movably arranged on the first surface 111 through the sliding mechanism 32. The outer surface of slide plate 31 is the third surface 131 of slide assembly 13.

Fig. 4 schematically illustrates a perspective view of a portion a of the screen support 10 shown in fig. 3A.

Referring to fig. 3A and 4, the slide mechanism 32 includes a first guide rail 321 and a first slider 322.

The first guide rail 321 is disposed on the first bracket 11, and a guiding direction of the first guide rail 321 and the first straight line i satisfy a parallel condition. For example, the guiding direction of the first guiding rail 321 is parallel to the first straight line i, or parallel within a certain tolerance range.

The first slider 322 is fixedly connected to the sliding plate 31 and movably disposed in the first guide rail 321, and the first slider 322 can move along the guiding direction of the first guide rail 321.

When the first slider 322 moves in the first guide rail 321 along the guiding direction of the first guide rail 321, the sliding plate 31 can be driven to move along the first straight line i relative to the first bracket 11.

According to the embodiment of the present disclosure, the moving stroke of the first slider 322 in the first guide rail 321 is greater than or equal to the maximum distance that the sliding plate 31 moves with respect to the first bracket 11.

Referring to fig. 3A to 4, the first guide rail 321 and the first slider 322 may have a plurality of matching structures and be arranged in a certain layout. For example, as can be seen from fig. 3A and 3B, there are 5 fitting structures of the first guide rail 321 and the first slider 322, wherein the fitting structures are arranged substantially symmetrically with respect to a center point of an area of the first bracket 11 corresponding to the slide plate 31. As can be seen from fig. 2A and 3A, when the sliding plate 31 is close to the inner side of the first frame 11, in the 5 matching structures formed by the first guide rail 321 and the first slider 322, the first slider 322 is located on the side of the first guide rail 321 close to the inner side of the first frame 11; meanwhile, as can be seen from fig. 2B and 3B, when the sliding plate 31 is close to the outer side of the first bracket 11, in the 5 matching structures of the first guide rail 321 and the first slider 322, the first slider 322 is located at the side of the first guide rail 321 close to the outer side of the first bracket 11.

According to an embodiment of the present disclosure, the sliding mechanism 32 further includes a tensioning structure 323. A tensioning structure 323 may be provided between the first bracket 11 and the slide plate 31 for providing a force to the slide plate 31 along a second line r, which satisfies a parallel condition with the first line i. For example, the second line r is parallel to the first line i, or parallel within a certain tolerance.

During the process of unfolding the electronic device 100 from the folded state to the unfolded state, the sliding plate 31 moves from the outer edge of the first bracket 11 to the inner side under the traction of the flexible screen 20, and a restoring force for stretching the sliding plate 31 toward the outer edge of the first bracket 11 can be generated by the tensioning structure 323, and the restoring force is finally applied to the flexible screen 20, so that the flexible screen 20 is in a flat state when the electronic device 100 is unfolded, and the flexible screen 20 is prevented from being wrinkled.

When the flexible screen 20 is mounted in the screen support 10, the sliding plate 31 may be spaced apart from the maximum edge of the first support 11 by a jig to place the tensioning structure 323 in a compressed state, and then the flexible screen 20 may be attached to at least a portion of the second surface 121 of the second support 12 and the sliding plate 31, and the jig may be removed after the attachment of the flexible screen 20 is completed. At this time, the tensioning structure 323 generates a force that pulls the sliding plate 31 toward the outer edge of the first bracket 11, so that the portion of the flexible screen 20 in the first free area 112 and/or the second free area 122 is subjected to a pulling force applied to the sliding plate 31 by the tensioning structure 323. This tension will vary with the bending deformation of the flexible screen 20 and is a passive part.

According to an embodiment of the present disclosure, as shown in fig. 4, the tension structure 323 may include a guide rod 51, a stopper 52, a second slider 53, an elastic member 54, and a second guide rail 55. The guide rod 51 is disposed on the first bracket 11, and the extending direction of the guide rod 51 and the first straight line i satisfy a parallel condition. The stopper 52 is fixedly disposed on the guide rod 51 and fixedly connected to the first bracket 11. The second slider 53 is movably disposed on the guide rod 51 and is fixedly connected to the sliding plate 31. The elastic member 54 is sleeved on the guide rod 51 and located between the stopper 52 and the second slider 53. The second guide rail 55 is arranged on the first bracket 11, and the second sliding block 53 is movably arranged in the second guide rail 55; wherein the guiding direction of the second guiding rail 55 and the first straight line i satisfy the parallel condition, for example, parallel to the first straight line i, or parallel to a certain fault tolerance range. Therefore, when the sliding plate 31 moves towards the inner side of the first frame 11, the second sliding block 53 is driven to move towards the inner side of the first frame 11 in the second guiding rail 55, and the elastic member 54 is compressed, so that the elastic member 54 generates a force pushing the sliding plate 31 outwards. The elastic member 54 may be a spring or other damping member.

According to other embodiments of the present disclosure, the tensioning structure 323 may also be other damping structures, such as an elastic member (e.g., a spring, a compression spring, or rubber, etc.) disposed between the first guide rail 321 and the first slider 322. When the first slider 322 moves in the first guide rail 321, a force along the second line r is provided to the slide plate 31 by pressing or stretching the elastic member.

One or more tension structures 323 may be provided as needed, wherein when there are a plurality of tension structures 323, the layout of the plurality of tension structures 323 may be optimized according to the stress balance. For example, referring to fig. 3A to 4, the sliding mechanism 32 specifically includes two tensioning structures 323, and the two tensioning structures 323 are symmetrically arranged at positions close to the edges on both sides of the first bracket 11.

With continued reference to fig. 4, at the edge of the first bracket 11 there is provided a fence 113. The barrier 113 can limit the sliding plate 31, and can shield the sliding plate 31 to prevent the sliding plate 31 from being exposed, so that the electronic device 100 has a simple appearance.

According to embodiments of the present disclosure, the screen support 10 may further include a self-locking structure. The self-locking structure may be provided on the first bracket 11, and/or the second bracket 12, and/or the hinge structure 14. The self-locking structure is used to fix the relative positions of the first support 11 and the second support 12 when the electronic device 100 is opened at any angle.

The presence of the tensioning structure 323 may cause the electronic device 100 to generate additional force along the second line r. This force may affect the torque balance of the spindle structure 14 itself. Therefore, the force generated by the tensioning structure 323 can be offset by adding a self-locking structure in the electronic device 100, so as to increase the stability of the electronic device 100. Moreover, the self-locking structure can fix the first bracket 11 and the second bracket 12 at specific positions, and can also avoid fatigue caused by continuous stress on the elastic element 54, thereby protecting the elastic element 54.

In practical application, the self-locking structure can be arranged on the first bracket 11 or the second bracket 12 or directly arranged on the rotating shaft according to a practical form. For example, a damping member is provided on the rotating shaft, and the relative position of the first bracket 11 and the second bracket 12 is fixed by a damping force. Or, a clamping component is arranged in the first guide rail 321, and when the first bracket 11 and the second bracket 12 do not move relatively any more, the clamping component enters a clamping state to prevent the first bracket 11 and the second bracket 12 from moving relatively. The clamping component can adopt a pure mechanical structure (such as a semicircular clamping groove and a semicircular bulge) or an electrically controlled clamping structure. If the form of the electric control is adopted, the electric control can be connected with a controller of the electronic device 100 to realize the control.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the disclosure can be made without conflict, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

While the disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Accordingly, the scope of the present disclosure should not be limited to the above-described embodiments, but should be defined not only by the appended claims, but also by equivalents thereof.

Claims

1. A screen support, comprising:

a first bracket;

the second bracket is hinged with the first bracket; the first bracket and the second bracket can be opened and closed relatively; wherein at least a portion of the second surface of the second support is for fixed connection with a flexible screen;

the rotating shaft structure is arranged between the first bracket and the second bracket; the pivot structure includes: the connecting parts are respectively connected with the rotating shaft core in a rotating way;

the two connecting parts are respectively connected with the first bracket and the second bracket, so that the first bracket and the second bracket can be opened and closed relatively by taking the rotating shaft core as a shaft;

the two connecting parts are respectively provided with a movable structure, and the two connecting parts connect the first bracket and the second bracket with the rotating shaft core through the respective movable structures, so that the first bracket and the second bracket can approach or depart from the rotating shaft core under the action of the movable structures when the first bracket and the second bracket are relatively opened and closed; wherein, the motion trail of the movable structure is designed according to the relative movement relationship between the flexible screen and the rotating shaft core in the relative opening and closing process of the first support and the second support;

the sliding assembly is movably arranged on the first surface of the first bracket; the sliding assembly can move along a first straight line compared with the first support, and the first straight line and the first surface meet a parallel condition; at least one part of a third surface of the sliding assembly is used for being fixedly connected with the flexible screen, and the third surface is a surface, far away from the first support, in the sliding assembly;

wherein the content of the first and second substances,

the first surface is provided with a first free area, the first free area is positioned on one side of the first surface close to the second support, and the surface of the first free area is coplanar with the third surface, wherein the first free area is not connected with the flexible screen; or

A second free area is arranged on the second surface and is positioned on one side of the second surface close to the first bracket; wherein the second free area is not connected to the flexible screen.

2. The screen support of claim 1, wherein the sliding assembly comprises a sliding plate and a sliding mechanism;

the sliding plate is movably arranged on the first surface through the sliding mechanism.

3. The screen support of claim 2, wherein the sliding mechanism comprises:

the first guide rail is arranged on the first support, and the guide direction of the first guide rail and the first straight line meet the parallel condition; and

the first sliding block is fixedly connected with the sliding plate and movably arranged in the first guide rail, and the first sliding block can move along the guide direction of the first guide rail.

4. The screen support of claim 2, wherein the sliding mechanism further comprises:

and the tensioning structure is arranged between the first bracket and the sliding plate and used for providing force along a second straight line for the sliding plate, and the second straight line and the first straight line meet the parallel condition.

5. The screen support of claim 4, wherein the tensioning structure comprises:

the guide rod is arranged on the first bracket, and the extending direction of the guide rod and the first straight line meet the parallel condition;

the stop block is fixedly arranged on the guide rod and is fixedly connected with the first bracket;

the second sliding block is movably arranged on the guide rod and is fixedly connected with the sliding plate;

the elastic piece is sleeved on the guide rod and is positioned between the stop block and the second sliding block;

the second guide rail is arranged on the first bracket, and the second sliding block is movably arranged in the second guide rail; wherein the guide direction of the second guide rail and the first line satisfy a parallel condition.

6. The screen support of any of claims 1-5, further comprising a self-locking structure:

the self-locking structure is arranged on the first support and/or the second support and used for fixing the relative positions of the first support and the second support.

7. An electronic device, comprising: a flexible screen and a screen support, wherein the screen support is according to any one of claims 1 to 6.