Support structure and display device

Abstract

The application relates to a support structure and a display device, wherein the support structure comprises: a support layer comprising a first surface and a second surface opposite to each other, the support layer further comprising a main support area and a zoom multiplexing area located on at least one side of the main support area in a first direction; a driving assembly comprising two or more driving rod groups, driving rods in each driving rod group are arranged in the same layer, and the two or more driving rod groups are arranged adjacently along the thickness direction of the support layer, wherein a part of the two or more driving rod groups are connected with the first surface of the support layer, and the other part of the two or more driving rod groups are connected with the second surface of the support layer, the support layer forms a containing cavity, the first direction intersects with the thickness direction; and the support structure can be switched between at least a first state and a second state. The support structure provided by the application can conveniently realize zooming and requires a smaller space.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a support structure and display device. Background Technology

[0002] With the development of display technology, users' demands for display devices are gradually increasing. In order to enable display devices to have a large display area and good portability, existing display devices achieve the transformation between two states through folding or telescopic mechanisms, that is, switching between a state with a large display area and a state with a small volume that is easy to carry. However, existing folding display devices are prone to forming creases on the screen, while telescopic display devices have a relatively complex structure, poor reliability, and require a large space, so their portability is still reduced even when folded.

[0003] Therefore, there is an urgent need for a support structure that can easily change the display area by stretching and contracting, as well as a corresponding display device. Summary of the Invention

[0004] This application provides a support structure and a display device, which aims to solve the problems of flexible display screens, such as inconvenient adjustment of display area, low reliability, and large space requirement.

[0005] In a first aspect, an embodiment of this application proposes a support structure, comprising: a support layer including a first surface and a second surface facing away from each other, the support layer further including a main support area and a scaling-multiplexing area located on at least one side of the main support area in a first direction; a drive assembly including two or more sets of drive rods, the drive rods in each set of drive rods being distributed in the same layer, and the two or more sets of drive rods being arranged adjacently along the thickness direction of the support layer, wherein a portion of the two or more sets of drive rods is connected to the first surface of the support layer, and another portion of the drive rods is connected to the second surface of the support layer, the support layer forming a receiving cavity, the first direction intersecting the thickness direction; the support structure is capable of switching between at least a first state and a second state, in the first state, the scaling-multiplexing area and the main support area are located in the same plane, and the support structure achieves the support function through the main support area and part of the scaling-multiplexing area, in the second state, the scaling-multiplexing area retracts into the receiving cavity, and the support structure achieves the support function through the main support area.

[0006] Secondly, according to the embodiments of this application, a display device is provided, comprising: a support structure as described in any embodiment of the first aspect; and a screen body, which is stacked on the first surface of the support layer.

[0007] The support structure provided in this embodiment includes a support layer and a driving assembly. The driving assembly drives the support layer to move, thereby switching the support structure between a first state and a second state. The driving assembly includes two or more sets of driving rods, each set containing at least one driving rod. These multiple driving rod sets are respectively connected to opposite side surfaces of the support layer, allowing forces to be applied to the support layer from both the inner and outer sides of the accommodating cavity formed around it. By pushing the scaling and reuse area of ​​the support layer into the accommodating cavity via the driving rods, and accommodating part of the driving assembly and the support layer within the cavity, scaling is achieved with a small required space. Furthermore, the movement pattern and trajectory of the driving rod sets are simple, resulting in high reliability. Attached Figure Description

[0008] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0009] Figure 1 This is a schematic diagram of the support structure provided in an embodiment of this application in the first state;

[0010] Figure 2 yes Figure 1 A cross-sectional view at point A-A';

[0011] Figure 3 This is a schematic diagram of the support structure provided in an embodiment of this application in the second state;

[0012] Figure 4 yes Figure 3 A cross-sectional view at point B-B';

[0013] Figure 5 yes Figure 1 Another sectional view at point A-A';

[0014] Figure 6 yes Figure 1 Another sectional view at point A-A';

[0015] Figure 7 yes Figure 1 Another sectional view at point A-A';

[0016] Figure 8 yes Figure 1 A magnified view of region P in the middle;

[0017] Figure 9 This is a schematic diagram of the structure of a display device provided in one embodiment of this application.

[0018] in:

[0019] 100 - Support structure; 200 - Display device;

[0020] 10-Support layer; 20-Driver component; 30-Screen body;

[0021] 11-First surface; 12-Second surface; 13-Main support area; 14-Scaling and reusable area; 15-Receiving cavity; 16-Auxiliary support area; 21-Drive rod assembly; 22-Fixing component; 23-First drive rod assembly; 24-Second drive rod assembly; 25-Third drive rod assembly;

[0022] 211-Drive rod; 212-Moving track; 213-Main body; 214-Folding part;

[0023] 2111 - Rod body; 2112 - Roller;

[0024] X - First direction; Y - Second direction; Z - Thickness direction.

[0025] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0026] The features and exemplary embodiments of various aspects of this application will now be described in detail. To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain this application and are not configured to limit this application. For those skilled in the art, this application can be implemented without some of these specific details. The following description of the embodiments is merely to provide a better understanding of this application by illustrating examples of this application.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes said element.

[0028] It should be understood that when describing the structure of a component, when referring to a layer or region as being "above" or "on top of" another layer or region, it can mean that it is directly above the other layer or region, or that it contains other layers or regions between it and the other layer or region. Furthermore, if the component is flipped over, that layer or region will be located "below" or "under" the other layer or region.

[0029] It should be understood that although the terms "first" and "second" may be used to describe the form of the display device in the embodiments of this application, these forms should not be limited to these terms, which are only used to distinguish these forms from each other. For example, without departing from the scope of the embodiments of this application, the first form may also be referred to as the second form, and similarly, the second form may also be referred to as the first form.

[0030] The features and exemplary embodiments of various aspects of this application will now be described in detail. Furthermore, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0031] With the development of display technology, users' requirements for display devices are gradually increasing, including requirements for display area and overall portability. Based on this, existing display devices typically achieve switching between display and portable modes through folding or rolling mechanisms.

[0032] Based on this, the inventors discovered that foldable display devices are prone to creases at the folding points and have a short lifespan. Furthermore, roll-up and telescopic display devices require complex telescopic structures, have poor reliability, and require a large overall space to meet the minimum bending radius of the screen.

[0033] To address the aforementioned technical problems, embodiments of this application provide a support structure and a display device that can effectively improve the reliability of the display device and reduce the space required for the display device.

[0034] Furthermore, to better understand this application, the following will be combined with... Figures 1 to 9 The supporting structure and display device provided in the embodiments of this application will be described in detail.

[0035] Please refer to the following: Figures 1 to 4 , Figure 1 This is a schematic diagram of the support structure provided in one embodiment of this application in the first state. Figure 2 yes Figure 1 A cross-sectional view at point A-A'. Figure 3 This is a schematic diagram of the support structure provided in an embodiment of this application in the second state. Figure 4 yes Figure 3A cross-sectional view at point B-B'.

[0036] In a first aspect, an embodiment of this application provides a support structure 100, comprising: a support layer 10, including a first surface 11 and a second surface 12 facing away from each other, the support layer 10 further including a main support region 13 and a scaling multiplexing region 14 located on at least one side of the main support region 13 in a first direction X; and a drive assembly 20, including two or more sets of drive rod groups 21, wherein the drive rods 211 in each drive rod group 21 are distributed in the same layer, and the two or more sets of drive rod groups 21 are arranged adjacent to each other along the thickness direction Z of the support layer 10, wherein a portion of the drive rod groups 21 in the two or more sets of drive rod groups 21 are adjacent to the support layer. The first surface 11 of the support layer 10 is connected, and the other part of the drive rod assembly 21 is connected to the second surface 12 of the support layer 10. The support layer 10 forms a receiving cavity 15, and the first direction X intersects the thickness direction Z. The support structure 100 can switch between at least a first state and a second state. In the first state, the scaling multiplexing area 14 and the main support area 13 are located on the same plane, and the support structure 100 realizes the support function through the main support area 13 and part of the scaling multiplexing area 14. In the second state, the scaling multiplexing area 14 retracts into the receiving cavity 15, and the support structure 100 realizes the support function through the main support area 13.

[0037] This application first provides a support structure 100, applied in a display device 200 and used to drive the supported screen 30 to switch between two states. Specifically, the support structure 100 includes a support layer 10 for directly supporting the screen 30 and a driving component 20 for defining the shape of the support layer 10.

[0038] It can be understood that the support layer 10 can be a layered support structure 100 that is independent of the screen body 30 used to perform the display function, and the screen body 30 can be stacked with the support layer 10 by means of bonding or the like; or, the support layer 10 can refer to the support structure 100 in the screen body 30, such as the flexible substrate in the screen body 30 used to set circuit elements or display units, that is, the constituent structure in the screen body 30 is used as the support layer 10.

[0039] Optionally, the support layer 10 can be made of a flexible material with certain tensile and wear resistance properties, such as polyimide film, so that it can deform with the movement of the drive rod assembly 21 and has a long service life based on repeated deformation.

[0040] The support layer 10 includes a main support area 13 and a scaling multiplexing area 14 located on at least one side of the main support area 13 in the first direction X. The scaling multiplexing area 14 can be configured according to the scaling area. For example, in an embodiment where the support structure 100 can be symmetrically scaled on both sides, the main support area 13 can be provided with scaling multiplexing areas 14 on both sides; in an embodiment where the support structure 100 can only be scaled on one side, the main support area 13 can be provided with scaling multiplexing areas 14 on only one side.

[0041] The drive assembly 20 is used to define the shape of the support layer 10 and switch it between different shapes. It includes two or more drive rod groups 21, each drive rod group 21 including one or more drive rods 211, and multiple drive rods 211 in the same drive rod group 21 are distributed in the same layer. "Distributed in the same layer" here means that in the same drive rod group 21, each drive rod 211 is positioned in the same position in the thickness direction Z of the support structure 100, with the central axes of each drive rod 211 located in the same plane, and this plane is the same as or close to the aforementioned thickness direction Z.

[0042] Furthermore, the support layer 10 has a first surface 11 and a second surface 12 disposed opposite to each other in its thickness direction Z. A portion of the plurality of drive rod assemblies 21 is connected to the first surface 11, and the other portions are connected to the second surface 12. This connection can be direct or indirect, and the connection structure can be abutment, sliding connection, or rotational connection, etc. Thus, the support layer 10 can be tensioned on each drive rod 211 in each drive rod assembly 21, and the plurality of drive rods 211 can apply force to the support layer 10 from the two opposing surfaces respectively. Simultaneously, the support layer 10 surrounds and forms a receiving cavity 15. Taking the first surface 11 facing the receiving cavity 15 as an example, the drive rod assembly 21 connected to the first surface 11 can be located within the receiving cavity 15.

[0043] Furthermore, the support structure 100 can switch between a first state and a second state. In the first state, the main support area 13 and the scaling multiplexing area 14 in the support layer 10 jointly provide support, and both are in the same plane. At this time, the support structure 100 can provide a large support area, which can be the same as or similar to the sum of the areas of the main display area and the scaling multiplexing area 14. In embodiments where the support structure 100 is applied to the display device 200, this first state can be selected as an extended state in which the display device 200 has a large display area.

[0044] Correspondingly, in the second state, the drive rod assembly 21, located outside the receiving cavity 15, moves into the receiving cavity 15, applies a force to the support layer 10, and drives the scaling multiplexing area 14 into the receiving cavity 15. At this time, the support structure 100 is supported by the main support area 13. Along the thickness direction Z, the orthographic projection of the main support area 13 and the orthographic projection of the scaling multiplexing area 14 can overlap each other. In embodiments where the support structure 100 is applied to the display device 200, this second state can be selected as a retracted state that gives the display device 200 a smaller volume and higher portability.

[0045] The aforementioned structure allows for convenient modification of the support area of ​​the support layer 10. In the contracted state, a portion of the support layer 10 contracts into the cavity 15 formed by itself in the extended state, effectively reducing the volume after contraction and ensuring structural stability and reliability.

[0046] In some optional embodiments, during the transition of the support structure 100 from the second state to the first state, at least a portion of the drive rods 211 of the drive rod group 21 connected to the first surface 11 are configured as active rods, and at least a portion of the drive rods 211 of the drive rod group 21 connected to the second surface 12 are configured as driven rods; during the transition of the support structure 100 from the first state to the second state, at least a portion of the drive rods 211 connected to the second surface 12 are configured as active rods, and at least a portion of the drive rods 211 of the drive rod group 21 connected to the first surface 11 are configured as driven rods.

[0047] As mentioned above, the support structure 100 can switch between a first state and a second state by moving the drive rod assembly 21. Based on this, the driving rod and the driven rod can be set according to the direction of the force applied during the state switching process.

[0048] Specifically, taking the first surface 11 facing the receiving cavity 15 and the second surface 12 facing away from the receiving cavity 15 as an example, during the process of switching from the first state to the second state, it is necessary to apply a squeezing force towards the center of the receiving cavity 15 to the second surface 12. Therefore, the drive rod group 21 connected to the second surface 12 can be set as the active rod, and the drive rod group 21 connected to the first surface 11 can be set as the driven rod. The active rod applies a force to the support layer 10, and the support layer 10 further drives the driven rod to move.

[0049] Correspondingly, during the transition from the second state to the first state, a force needs to be applied to the support layer 10 away from the center of the receiving cavity 15. Therefore, the drive rod group 21 connected to the first surface 11 is set as the active rod, while the drive rod group 21 connected to the second surface 12 is set as the driven rod.

[0050] By changing the settings of the active and driven rods, the scaling of the support structure 100 can be made more stable and synchronized, reducing the possibility of damage to the support layer 10 due to uneven force during state switching.

[0051] Please see Figure 5 , Figure 5 yes Figure 1 Another cross-sectional view at point A-A'.

[0052] In some optional embodiments, each drive rod group 21 includes two drive rods 211, both of which extend along the second direction Y and are spaced apart in the first direction X. The first direction X, the second direction Y, and the thickness direction Z intersect each other. Alternatively, the drive assembly 20 may also include a fixing member 22, one end of the support layer 10 in the first direction X is connected to the fixing member 22, and the other end is connected to each drive rod group 21. The scaling and multiplexing area 14 is located on the side of the main support area 13 near the drive rod group 21.

[0053] Depending on the scaling area required by the support structure 100, the drive component 20 can be configured with different structural forms to achieve single-sided scaling or double-sided scaling.

[0054] Specifically, each drive rod assembly 21 may include two drive rods 211. The two drive rods 211 may extend parallel to each other and have the same or similar structure and size to facilitate processing and ensure uniform force distribution on the support layer 10. In this embodiment, the two drive rods 211 may be spaced apart in the first direction X, optionally symmetrically arranged, and both drive rods 211 may extend along the second direction Y. The first direction X, the second direction Y, and the aforementioned thickness direction Z intersect each other, and may further be arranged perpendicularly to each other.

[0055] Furthermore, in embodiments where each drive rod assembly 21 includes two drive rods 211, the two drive rods 211 can move symmetrically in the first direction X. Exemplarily, in embodiments where the two drive rods 211 connected to the first surface 11 serve as active rods, the two drive rods 211 can move towards or away from each other at the same or similar speeds, allowing the support structure 100 to extend and retract symmetrically on both sides in the first direction X. At this time, scaling and multiplexing areas 14 are provided on opposite sides of the main support area 13. In the second state, the two scaling and multiplexing areas 14 extend from both sides into the receiving cavity 15.

[0056] Alternatively, the drive assembly 20 may also include a fixing member 22, and each drive rod group 21 may include one drive rod 211. In this case, one end of the support layer 10 in the first direction X is connected to the fixing member 22, and the opposite side can be tensioned on multiple drive rods 211. During the transition from the first state to the second state, the drive rod 211 that abuts against the surface of the support layer 10 opposite to the receiving cavity 15 moves towards the fixing member 22; during the transition from the second state to the first state, the drive rod 211 that abuts against the surface of the support layer 10 facing the receiving cavity 15 moves in the opposite direction.

[0057] In the embodiment where the fastener 22 is provided, the support structure 100 is unilaterally scaled on the side where the drive rod 211 is provided, and the main support area 13 is provided with a scaling reuse area 14 on the side near the drive rod assembly 21.

[0058] By including two drive rods 211 in each drive rod group 21, the support structure 100 can be subjected to more uniform force during scaling, thus extending its service life. By setting a fastener 22 in the drive assembly 20, the structure of the drive assembly 20 can be simplified and the cost reduced.

[0059] Please refer to the following: Figure 6 and Figure 7 , Figure 6 yes Figure 1 Another sectional view at point A-A'. Figure 7 yes Figure 1 Another sectional view at point A-A'.

[0060] In some optional embodiments, the drive assembly 20 includes a first drive rod group 23 and a second drive rod group 24, the first drive rod group 23 abutting against the first surface 11, and the end of the support layer 10 being connected to the second drive rod group 24; or, the drive assembly 20 includes a first drive rod group 23, a second drive rod group 24 and a third drive rod group 25 arranged sequentially along the thickness direction Z, the first drive rod group 23 abutting against the first surface 11, the second drive rod group 24 abutting against the second surface 12, and the end of the support layer 10 being connected to the third drive rod group 25; or, the drive assembly 20 includes a first drive rod group 23, a second drive rod group 24 and a third drive rod group 25 arranged sequentially along the thickness direction Z, the support layer 10 being connected end to end in a ring shape, the first drive rod group 23 and the third drive rod group 25 abutting against the first surface 11 respectively, and the second drive rod group 24 abutting against the second surface 12.

[0061] The drive assembly 20 in this embodiment includes a plurality of drive rod groups 21, specifically two or three drive rod groups 21, and the support layer 10 may adopt different connection and fixing methods depending on the number of drive rod groups 21 and the mode of movement.

[0062] Specifically, the drive assembly 20 may include two drive rod groups 21, namely a first drive rod group 23 connected to the first surface 11 facing the receiving cavity 15 and a second drive rod group 24 connected to the end of the support layer 10. In this embodiment, the first drive rod group 23 and the second drive rod group 24 may each include one or more drive rods 211. Taking the end region of the support structure 100 in the first direction X as an example, the end of the support layer 10 may be connected and fixed to the drive rod 211 in the second drive rod group 24, while the drive rod 211 in the first drive rod group 23 may be connected to the first surface 11 of the support layer 10 facing the receiving cavity 15.

[0063] In this embodiment, during the transition from the first state to the second state, the drive rod 211 in the second drive rod group 24 moves toward the center of the receiving cavity 15; during the transition from the second state to the first state, the drive rod 211 in the first drive rod group 23 moves away from the center of the receiving cavity 15 to achieve scaling of the support structure 100.

[0064] Alternatively, the drive assembly 20 may include three drive rod groups 21, one to three, arranged sequentially along the thickness direction Z. In this embodiment, the support layer 10 may employ two different connection methods.

[0065] Specifically, the first drive rod assembly 23 can be connected to the first surface 11 facing the receiving cavity 15, the second drive rod assembly 24 can be connected to the second surface 12 facing away from the receiving cavity 15, and the end of the support layer 10 can be connected and fixed to the third drive rod assembly 25. Based on this, during the process of switching from the first state to the second state, the drive rod 211 in the second drive rod assembly 24 moves towards the center of the receiving cavity 15; during the process of switching from the second state to the first state, the drive rods 211 in the first drive rod assembly 23 and the third drive rod assembly 25 move synchronously away from the center of the receiving cavity 15.

[0066] Alternatively, based on the drive assembly 20 including the third drive rod group 21, the support layer 10 can be configured as an annular structure with its ends connected and fitted onto the drive assembly 20. Specifically, the three drive rod groups 21 are arranged sequentially along the thickness direction Z. In this case, the drive rods 211 in the first drive rod group 23 and the third drive rod group 25 are connected to the first surface 11 of the support layer 10 facing the receiving cavity 15, and the second drive rod group 24 is connected to the second surface 12.

[0067] During the state switching process, the movement direction of the three drive lever groups 21 is the same as in the previous embodiment, and will not be repeated here.

[0068] By setting the drive component 20 to the aforementioned three structural forms, the support layer 10 can be switched stably and conveniently between the first state and the second pile body, thereby improving the overall reliability of the support structure 100.

[0069] It is understood that in the three embodiments described above, each drive rod assembly 21 can include two drive rods 211, and the support structure 100 can be symmetrically scaled on both sides; or each drive rod assembly 21 can include one drive rod 211, and one end of the support layer 10 can be connected to the fixing member 22. For embodiments where the support layer 10 is annular, one end of the support layer 10 can be fitted onto the fixing member 22.

[0070] In some alternative embodiments, the support layer 10 is arranged in a ring shape with its ends connected end to end, and the two opposite ends of the support layer 10 in its own extension direction are bonded or heat-fused together.

[0071] In an embodiment where the support layer 10 is connected end to end in a ring shape, the ends of the support layer 10 can be connected in a variety of different ways.

[0072] Specifically, when processing the support layer 10, an auxiliary bending mold of a corresponding shape can be provided first. The cross-section of the auxiliary bending mold can be, for example, circular, rounded rectangular, racetrack-shaped, elliptical, etc. The support layer 10 is then attached to the outer circumferential surface of the auxiliary bending mold, and the mold forms the support layer 10 into a cylindrical shape with its ends joined together. The joints are then bonded or heat-fused. After the connection is fixed, the auxiliary bending mold can be removed.

[0073] By bonding or hot-melting the two ends of the support layer 10, it can be easily processed and has good connection strength, thereby reducing the possibility of problems such as the support layer 10 breaking at the joint due to repeated scaling.

[0074] In some optional embodiments, the support layer 10 is arranged in a ring shape with its ends connected, and the multiple drive rods 211 of the third drive rod group 25 are spaced apart in the first direction X. The support layer 10 also includes an auxiliary support area 16 disposed between the multiple drive rods 211 of the third drive rod group 25. The area of ​​the auxiliary support area 16 is less than or equal to the area of ​​the main support area 13.

[0075] In an embodiment where the support layer 10 is annular, the support layer 10 first has a main support area 13 and a scaling multiplexing area 14 located on at least one side of the main support area 13. In the first state, the two areas work together to provide support. Taking the application of the support structure 100 to the display device 200 as an example, the main support area 13 and the scaling multiplexing area 14 can be used to support the main display area of ​​the display device 200.

[0076] Furthermore, the support layer 10 may also have an auxiliary support area 16 disposed opposite to the main support area 13 in the thickness direction Z. Similarly, taking the application of the support structure 100 to the display device 200 as an example, the auxiliary support area 16 may be used to support the back auxiliary display area of ​​the display device 200. The auxiliary display area and the aforementioned main display area are located on opposite sides of the display device 200.

[0077] Optionally, the area of ​​the auxiliary support area 16 may be less than or equal to the area of ​​the main support area 13, in order to form a smaller auxiliary support area on the back side of the support structure 100, thereby enriching the display effect of the display device 200 and further improving the user experience.

[0078] In some optional embodiments, the drive assembly 20 includes a first drive rod group 23, a second drive rod group 24 and a third drive rod group 25 arranged sequentially along the thickness direction Z, and each drive rod group 21 includes two drive rods 211. Along the thickness direction Z, the two drive rods 211 of the first drive rod group 23 and the two drive rods 211 of the third drive rod group 25 are arranged opposite each other.

[0079] In an embodiment where the drive assembly 20 includes three drive rod groups 21 arranged sequentially along the thickness direction Z from the first to the third, each drive rod group 21 may include two drive rods 211, and the two drive rods 211 in the same drive rod group 21 may extend in the same direction and be symmetrically arranged in the first direction X.

[0080] Furthermore, in a single drive rod assembly 21, both the first drive rod assembly 23 and the third drive rod assembly 25 are connected to the first surface 11 of the support layer 10 facing the receiving cavity 15, and along the thickness direction Z, the two drive rods 211 in the first drive rod assembly 23 are respectively positioned opposite to the two drive rods 211 in the third drive rod assembly 25, and move synchronously during the scaling process, that is, they remain positioned opposite each other along the thickness direction Z during the movement.

[0081] By aligning the first drive rod group 23 and the third drive rod group 25, the drive rods 211 in the two drive rod groups 21 can move synchronously, thereby making the support layer 10 more uniformly stressed, reducing the possibility of excessive stress in a specific area leading to plastic deformation or slippage, and improving the overall reliability of the support structure 100.

[0082] In some optional embodiments, the drive rod groups 21 are spaced apart from each other in the thickness direction Z, and the distance between adjacent drive rod groups 21 is 8mm to 15mm.

[0083] The drive assembly 20 in this embodiment includes two or more drive rod groups 21, which are arranged sequentially and at intervals along the thickness direction Z. Meanwhile, to facilitate tensioning of the support layer 10, the support layer 10 typically passes between adjacent drive rod groups 21 in the thickness direction Z.

[0084] Therefore, a certain distance should be maintained between adjacent drive rod groups 21 along the thickness direction Z to provide space for the support layer 10 to accommodate and move. The distance between adjacent drive rod groups 21 can be selected from 8mm to 15mm, for example, any one of 8mm, 10mm, 12mm, 14mm, and 15mm or any two of them. By setting the distance between adjacent drive rod groups 21 within the aforementioned range, the possibility of the support layer 10 being subjected to excessive bending stress or the support layer 10 wrinkling due to the drive rods 211 in adjacent drive rod groups 21 moving in opposite directions can be reduced, thereby improving the reliability of the support structure 100.

[0085] In some optional embodiments, the drive assembly 20 further includes a moving track 212, and each drive rod group 21 is movably connected to the moving track 212. The moving track 212 includes a main body 213 and a folded portion 214 located on at least one side of the main body 213 in the first direction X. In a first state, both the main body 213 and the folded portion 214 extend along the first direction X. In a second state, along the thickness direction Z, the orthographic projection of the main body 213 and the orthographic projection of the folded portion 214 are at least partially overlapped.

[0086] To facilitate the movement of the drive rod assembly 21, the drive assembly 20 may further include a moving track 212. The moving track 212 may be rotatably or slidably connected to the drive rod assembly 21, so that the drive rod assembly 21 can move along a preset trajectory. At least one side of the drive rod 211 is provided with a moving track 212 in the extension direction of the drive rod 211, i.e., the second direction Y. Further, the two opposite ends of the drive rod 211 along the second direction Y are respectively connected to two symmetrically arranged moving tracks 212.

[0087] Corresponding to the main support area 13 and the scaling multiplexing area 14 of the support layer 10, the moving track 212 may include a main body 213 and a folding part 214 located on at least one side of the main body 213, wherein the main body 213 extends along the first direction X, and the folding part 214 can move with the movement of the drive rod assembly 21 when switching states.

[0088] Specifically, in the first state, the main body 213 and the folding part 214 can be aligned in a straight line, both extending along the first direction X, so that the drive rods 211 in the drive rod assembly 21 can have a greater distance in the first direction X, thereby allowing the main support area 13 and the scaling multiplexing area 14 to be located in the same plane. In the second state, the support structure 100 retracts, at which time the folding part 214 can be bent to one side of the support layer 10 in the thickness direction Z, and the orthographic projection of the main body 213 along the thickness direction Z overlaps with the orthographic projection of the folding part 214 along the thickness direction Z, thereby hiding the folding part 214 to the back side of the support structure 100 and reducing the maximum size of the support structure 100 as a whole in the first direction X.

[0089] It is understood that in the embodiment where the main support area 13 is provided with a scaling and reuse area 14 on only one side and the support structure 100 is scaled on one side, the moving track 212 may accordingly include a main body 213 and a folding part 214 provided on one side of the main body 213; in the embodiment where the support structure 100 is scaled symmetrically on both sides, the moving track 212 may accordingly provide folding parts 214 on both sides of the main body 213, and the folding parts 214 may be symmetrically arranged along the first direction X.

[0090] By setting the moving track 212 as the main body 213 and the folding part 214 corresponding to the support layer 10, it is possible to maintain a small volume in the second state while limiting the moving trajectory of the drive rod 211 and making its movement smooth.

[0091] In some optional embodiments, along the thickness direction Z, the orthographic projection of the moving track 212 is offset from the orthographic projection of the main support area 13, and the orthographic projection of the moving track 212 is located on one side of the orthographic projection of the main support area 13 in the second direction Y, with the first direction X, the second direction Y and the thickness direction Z intersecting each other.

[0092] In the embodiment where the moving track 212 is provided, the orthographic projection of the moving track 212 along the thickness direction Z can be offset from the orthographic projection of the main support area 13 along the same direction. Specifically, the moving track 212 can be provided on at least one side of the main support area 13 in the second direction Y. In this embodiment, along the second direction Y, the extension dimension of the driving rod 211 in the driving rod assembly 21 can be greater than the extension dimension of the support layer 10, so that the portion of the driving rod 211 protruding from the support layer 10 can be movably connected to the moving track 212.

[0093] By positioning the moving track 212 on at least one side of the main support area 13 in the second direction Y and setting the orthographic projections of the two areas to be offset from each other, it is possible to avoid the moving track 212 from obstructing the main support area 13 on the front side or the auxiliary support area 16 on the back side after it is folded in the second state. This reduces the possibility of the moving track 212 interfering with the display area while still enabling it to have a folding function.

[0094] Please see Figure 8 , Figure 8 yes Figure 1 A magnified view of region P in the middle.

[0095] In some optional embodiments, the drive rod 211 includes a rod body 2111 and a roller 2112 disposed on at least one side of the rod body 2111 in the second direction Y. The roller 2112 is rotatably connected to the moving track 212, and the rod body 2111 is connected to the support layer 10.

[0096] In an embodiment with a movable track 212, the drive rod 211 may include a rod body 2111 and a roller 2112 located at at least one end of the rod body 2111 in the second direction Y. Further, it may be that rollers 2112 are provided at both ends of the rod body 2111, and the two rollers 2112 are movably connected and cooperated with the two movable tracks 212 on both sides respectively.

[0097] Optionally, the rod body 2111 and the roller 2112 can be fixedly connected and rotate synchronously. The rod body 2111 can have a relatively smooth surface. During state switching, the drive rod 211 can rotate as a whole, and the rod body 2111 and the support layer 10 can slide relative to each other. Alternatively, the rod body 2111 can be rotatably connected to the roller 2112, allowing them to rotate relative to each other, thereby reducing the possibility of scratch damage between the drive rod 211 and the support layer 10.

[0098] Optionally, the moving track 212 can be a grooved slide rail, with the roller 2112 at least partially located in the slide rail and rotating or slidingly engaging with it. By configuring the drive rod 211 to include a rod body 2111 for connection with the support layer 10 and a roller 2112 for connection with the moving track 212, the stability of the movement of the drive rod 211 can be further improved.

[0099] In some optional embodiments, the drive assembly 20 further includes a drive member that is drively connected to the drive rod 211 in each drive rod group 21.

[0100] To provide the power required for movement to each drive rod group 21, the drive assembly 20 may also include a drive member, and the drive member is connected to the multiple drive rods 211 in each drive rod group 21 that need to act as the active rods.

[0101] Specifically, the drive component can be disposed within the receiving cavity 15 and located near the center in the first direction X to reduce the possibility of interference between the drive component and the drive rod assembly 21. The drive component can be a miniature electric motor and is connected to each drive rod 211 via a transmission chain, transmission belt, or transmission gear. In embodiments with a moving track 212, the transmission structure can be disposed within or near the moving track 212 to save space.

[0102] Optionally, in embodiments where the drive assembly 20 includes multiple drive lever groups 21, multiple drive members can be provided, and each drive member can be drivenly connected to a different drive lever group 21; alternatively, only one drive member can be provided, and a switching member can be provided in the transmission structure to enable the drive member to switch to a state of being drivenly connected to different drive lever groups 21. For example, the same drive member can be drivenly connected to the drive lever during the switching between the first and second states, thereby reducing costs.

[0103] Please see Figure 9 , Figure 9 This is a schematic diagram of the structure of a display device provided in one embodiment of this application. In a second aspect, according to an embodiment of this application, a display device 200 is provided, comprising: a support structure 100 as described in any embodiment of the first aspect; and a screen 30, which is stacked on the first surface 11 of the support layer 10.

[0104] This application also proposes a retractable display device 200, including the aforementioned support structure 100 and a screen 30 disposed on the support structure 100 for displaying functions. The screen 30 can be stacked with the support layer 10 and is located on one side of the first surface 11. It is understood that in embodiments where the support structure 100 includes multiple drive rod groups 21, the drive rod groups 21 connected to the first surface 11 can abut against the side of the screen 30 away from the support layer 10 to facilitate scaling.

[0105] Optionally, the screen body 30 can be set independently and bonded to the support layer 10, or the support layer 10 can be used as part of the screen body 30, and the structure of the screen body 30 can be directly formed on the support layer 10.

[0106] The display device 200 provided in this application embodiment has all the beneficial effects of the aforementioned support structure 100. For details, please refer to the specific description of the support structure 100 in the above embodiments. This embodiment will not repeat the description here.

[0107] It is understood that the above description and details are merely exemplary and explanatory, and do not constitute a limitation on this application. Those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A support structure, characterized by, The support structure comprises: a support layer comprising a first surface and a second surface opposite to each other, the support layer further comprising a main support area and a zoom multiplex area located on at least one side of the main support area in a first direction; a driving assembly comprising two or more driving rod groups, the driving rods in each driving rod group being arranged in a layer, and the two or more driving rod groups being arranged adjacent to each other along the thickness direction of the main support area, wherein a part of the driving rod groups in the two or more driving rod groups are connected to the first surface of the support layer, and another part of the driving rod groups are connected to the second surface of the support layer, the support layer forming a receiving cavity, and the first direction intersects the thickness direction; the support structure can be switched between a first state and a second state by the movement of the driving rod groups, in the first state, the zoom multiplex area is located in the same plane as the main support area, and the support structure realizes the support function through the main support area and part of the zoom multiplex area, in the second state, the zoom multiplex area is retracted into the receiving cavity, and the support structure realizes the support function through the main support area; in the process of changing the support structure from the second state to the first state, at least part of the driving rods of the driving rod groups connected to the first surface are configured as driving rods, and at least part of the driving rods of the driving rod groups connected to the second surface are configured as driven rods, the driving rods apply a force to the support layer, and the support layer drives the movement of the driven rods; in the process of changing the support structure from the first state to the second state, at least part of the driving rods connected to the second surface are configured as driving rods, and at least part of the driving rods of the driving rod groups connected to the first surface are configured as driven rods.

2. The support structure of claim 1, wherein, each of the driving rod groups comprises two driving rods, and the two driving rods extend along a second direction and are arranged at intervals in the first direction, the first direction, the second direction and the thickness direction are arranged to intersect each other; alternatively, the driving assembly further comprises a fixing member, one end of the support layer in the first direction is connected to the fixing member, and the other end is connected to each of the driving rod groups, and the zoom multiplex area is arranged on the side of the main support area close to the driving rod groups.

3. The support structure of any one of claims 1-2, wherein, the driving assembly comprises a first driving rod group and a second driving rod group, the first driving rod group abuts against the first surface, and the end of the support layer is connected to the second driving rod group; alternatively, the driving assembly comprises a first driving rod group, a second driving rod group and a third driving rod group arranged in sequence along the thickness direction, the first driving rod group abuts against the first surface, the second driving rod group abuts against the second surface, and the end of the support layer is connected to the third driving rod group; alternatively, the driving assembly comprises a first driving rod group, a second driving rod group and a third driving rod group arranged in sequence along the thickness direction, the support layer is connected end to end to form a ring, the first driving rod group and the third driving rod group abut against the first surface respectively, and the second driving rod group abuts against the second surface.

4. The support structure of claim 3, wherein, The support layer is annularly arranged with the first end connected to the second end.

5. The support structure of claim 3, wherein, The support layer is annularly arranged with the first end connected to the second end.

6. The support structure of claim 3, wherein, The driving assembly comprises a first driving rod group, a second driving rod group and a third driving rod group arranged in sequence along the thickness direction, and each of the driving rod groups comprises two driving rods.

7. The support structure of claim 1, wherein, In the thickness direction, the driving rod groups are arranged at intervals, and the interval between adjacent driving rod groups is 8mm-15mm.

8. The support structure of claim 1, wherein, The driving assembly further comprises a moving track, and each of the driving rod groups is movably connected to the moving track. The moving track comprises a main body portion and a folding portion located on at least one side of the main body portion in the first direction, in the first state, the main body portion and the folding portion extend along the first direction, and in the second state, the orthographic projection of the main body portion and the orthographic projection of the folding portion are at least partially overlapped.

9. The support structure of claim 8, wherein, In the thickness direction, the orthographic projection of the moving track and the orthographic projection of the main support area are arranged at intervals, and the orthographic projection of the moving track is located on one side of the orthographic projection of the main support area in the second direction, the first direction, the second direction and the thickness direction are arranged at two two intersections.

10. The support structure of claim 9, wherein, The driving rod comprises a rod main body and a roller arranged on at least one side of the rod main body in the second direction, the roller is rotatably connected to the moving track, and the rod main body is connected to the support layer.

11. The support structure of claim 8, wherein, The driving assembly further comprises a driving member, and the driving member is drivingly connected to the driving rod in each of the driving rod groups.

12. A display device, characterized by comprising: The support structure comprises: The support structure according to any one of claims 1-11; The screen body is laminated on the first surface of the support layer.

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