Support assembly and display device

Abstract

The application relates to a supporting assembly and a display device, which can be switched between an unfolded state and a rolled state, comprising: a rotating shaft for driving the supporting assembly to be switched between the unfolded state and the rolled state; a supporting layer having a first end and a second end opposite in a first direction, the second end being connected with the rotating shaft; a supporting rod arranged on one side of the supporting layer close to the rotating shaft, comprising a plurality of supporting units arranged in sequence and connected in a head-to-tail mode, the angle between adjacent supporting units being adjustable, the supporting rod having a third end and a fourth end opposite in the first direction, the third end being connected with the first end, and the fourth end being connected with the rotating shaft; in the rolled state, the supporting layer and the supporting rod are wound on the rotating shaft; in the unfolded state, the supporting layer and the supporting rod are unfolded along the first direction, and the supporting rod abuts against the surface of the side of the supporting layer close to the supporting rod. The supporting assembly provided by the embodiment of the application can prevent the screen body from being warped and improve the flatness after the rolled screen is unfolded.

Description

Technical Field

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

[0002] With the development of display technology, the variety of display devices on the market is gradually increasing. In addition to flat panel displays, curved displays, foldable displays, retractable displays, and rollable displays are also available. Among them, rollable displays can significantly reduce the overall size of the display device, minimizing the space required without creating creases in the screen. However, after repeated rolling and unfolding, the screen in a rollable display device is prone to slippage between the film layers and adhesive materials, which cannot be recovered. This causes the screen to warp in the unfolded state, severely affecting the display effect of the rollable display device.

[0003] Therefore, there is an urgent need for a support component that can provide good flatness and prevent screen warping, as well as a corresponding display device. Summary of the Invention

[0004] This application provides a support component and a display device, wherein the support component can improve the flatness of the rollable screen after it is unfolded and prevent the screen from warping.

[0005] In a first aspect, an embodiment of this application provides a support assembly capable of switching between an unfolded state and a rolled-up state, comprising: a pivot capable of rotating circumferentially; a support layer having a first end and a second end opposite each other in a first direction, the second end being connected to the pivot; and a support rod disposed on the side of the support layer near the pivot, comprising multiple support units arranged sequentially end to end, the angle between adjacent support units being adjustable, the support rod having a third end and a fourth end opposite each other in the first direction, the third end being connected to the first end and the support rod extending parallel to the support layer; in the rolled-up state, the support layer and the support rod are rolled around the pivot; in the unfolded state, both the support layer and the support rod are unfolded along the first direction, and the support rod abuts against the surface of the support layer near the support rod.

[0006] According to one aspect of the embodiments of this application, the support assembly includes two support rods, which are respectively disposed at both ends of the support layer in a second direction and extend parallel to each other, with the first direction and the second direction intersecting each other.

[0007] According to one aspect of the embodiments of this application, a receiving groove is provided on the side of the support layer near the support rod, corresponding to the support rod, and in the unfolded state, the support rod is at least partially disposed in the receiving groove.

[0008] According to one aspect of the embodiments of this application, the thickness of the support layer is 0.05 to 0.15 mm, and the maximum extension dimension of the receiving groove in the thickness direction of the support layer is greater than or equal to one-half of the support layer.

[0009] According to one aspect of the present application, the support assembly further includes a guide block, which is located on the side of the support rod away from the support layer and near the third end. Along the unfolding direction of the support layer, the distance between the surface of the guide block near the support layer and the support layer gradually decreases.

[0010] According to one aspect of the embodiments of this application, the support layer includes a plurality of rigid support portions and a plurality of flexible connection portions, wherein the rigid support portions and the flexible connection portions extend along a second direction and are alternately arranged in a first direction.

[0011] According to one aspect of the embodiments of this application, the extension dimension of the flexible connection portion in the first direction is greater than or equal to the extension dimension of the rigid support portion in the first direction.

[0012] According to one aspect of the embodiments of this application, the rigid support portion extends in a first direction by 0.1 to 0.8 mm.

[0013] According to one aspect of the embodiments of this application, the support rod further includes an elastic connector. The support unit is provided with a connecting hole that extends through it along its own extension direction, and the elastic connector passes through the connecting hole in sequence. The two opposite ends of the support unit along the first direction are respectively provided with a protrusion and a recess. In the unfolded state, the protrusion of the support unit extends into the recess of the adjacent support unit.

[0014] According to one aspect of the embodiments of this application, the support unit is a cylinder, with protrusions and recesses respectively disposed on the end faces of both sides of the cylinder in a portion of the area near the support layer.

[0015] According to one aspect of the embodiments of this application, the support assembly further includes a first partition plate and a second partition plate, which extend spirally around the pivot and are spaced apart from each other. In the curled state, the first partition plate is disposed between the support layer and the support rod, and the second partition plate is disposed on the side of the support rod away from the support layer. The pivot includes a shaft and a flexible traction member, one end of which is connected to the shaft, and the other end of which is connected to at least one of a second end and a fourth end.

[0016] Secondly, according to the embodiments of this application, a display device is provided, comprising: a support component as described in any embodiment of the first aspect; and a screen body connected to the side surface of the support layer opposite to the support rod.

[0017] The support assembly provided in this application includes a rotating shaft that connects both a support layer and a support rod. Rotation of the shaft drives the entire support assembly to roll up or unroll. In the rolled-up state, both the support layer and the support rod are wound around the rotating shaft. In the unrolled state, both extend and unroll in the same direction. At this time, the support layer itself provides support perpendicular to the unrolling direction, and the support rod provides support in the unrolling direction, thereby ensuring the flatness of the support layer itself and the screen to be mounted on it, and improving the display effect of the rollable screen. Attached Figure Description

[0018] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of a support component provided in one embodiment of this application;

[0020] Figure 2 This is a partial structural schematic diagram of a support component provided in one embodiment of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the support component and screen body provided in one embodiment of this application;

[0022] Figure 4 yes Figure 3 A magnified view of region P in the middle;

[0023] Figure 5 This is a schematic diagram of the support rod in its unfolded state according to an embodiment of this application;

[0024] Figure 6 This is a schematic diagram of the support rod in a curled state according to an embodiment of this application;

[0025] Figure 7 This is a schematic diagram of the structure of a support unit provided in one embodiment of this application;

[0026] Figure 8 yes Figure 1 A magnified view of region Q in the middle area;

[0027] Figure 9 yes Figure 6 A magnified view of the central region R;

[0028] Figure 10 This is a schematic diagram of the structure of a display device provided in one embodiment of this application.

[0029] in:

[0030] 100 - Supporting components; 200 - Screen body; 300 - Display device;

[0031] 10-Rotating shaft; 20-Support layer; 30-Support rod; 40-Guide block; 50-First partition plate; 60-Second partition plate;

[0032] 11-Shaft; 12-Flexible traction component;

[0033] 21-First end; 22-Second end; 23-Receiving groove; 24-Rigid support; 25-Flexible connection;

[0034] 31-Support unit; 32-Third end; 33-Fourth end; 34-Elastic connector;

[0035] 311 - Connecting hole; 312 - Protrusion; 313 - Recess;

[0036] X - First direction; Y - Second direction.

[0037] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale. Detailed Implementation

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] With the development of display technology, the types of existing display devices are gradually increasing, such as foldable screen displays, sliding screen displays, and rollable screen displays. Rollable screen displays, in particular, can roll up their flexible screen when not in use, allowing the overall shape of the display device to be processed into a scroll or cylinder, eliminating the need for support plates and bezels larger than the display area. This significantly reduces the overall size of the display device and improves portability. Because rollable screens are thin and flexible displays that can be bent, support components are usually required in the display device to support the screen, enabling it to switch between rolled and unfolded states while ensuring the display effect during operation.

[0043] Based on this, the applicant discovered that existing flexible displays are composed of multiple stacked film layers and have a certain thickness. Therefore, rollable screens typically have at least one adhesive layer between their multiple film layers. This adhesive layer allows relative sliding between the different film layers during the rolling process, preventing wrinkles from forming in the inner layers. However, the elasticity of the adhesive material itself has its limits. After repeated rolling and unfolding, the adhesive layer is prone to failing to recover in time, causing the rollable screen to warp in the unfolded state, adversely affecting the display effect.

[0044] To address the aforementioned issues, this application provides a support component and a corresponding display device. The support component includes a pivot and a support layer connected to the pivot. Below the support layer, a support rod is provided that can be synchronously rolled up and unfolded. The support layer itself and the support rod supported below can provide flat support and fixation in two intersecting directions, thereby ensuring the flatness of the screen disposed on the support layer in the unfolded state.

[0045] It is understood that the following embodiments of this application are only used as an example of applying the support component to a rollable screen display device, but this application is not limited to this and can also be applied to other occasions where it is necessary to ensure its flatness after rolling and unfolding, and to provide protection for it.

[0046] To better understand this application, the following will be combined with... Figures 1 to 10 The supporting components and display devices provided in the embodiments of this application will be described in detail.

[0047] Please refer to the following: Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of a support component provided in one embodiment of this application. Figure 2 This is a partial structural diagram of a support component provided in one embodiment of this application. Figure 3 This is a schematic diagram of the structure of the support component and screen provided in one embodiment of this application.

[0048] In a first aspect, according to an embodiment of this application, a support assembly 100 is provided. The support assembly 100 is capable of switching between an unfolded state and a rolled-up state. The support assembly 100 includes a rotating shaft 10, a support layer 20, and a support rod 30. The rotating shaft 10 is capable of rotating around its own circumference. The support layer 20 has a first end 21 and a second end 22 that are opposite each other in a first direction X. The second end 22 is connected to the rotating shaft 10. The support rod 30 is located on the side of the support layer 20 near the rotating shaft 10 and includes a plurality of support units 31. The plurality of support units 31 are arranged sequentially end to end. The angle between adjacent support units 31 is adjustable. The support rod 30 has a third end 32 and a fourth end 33 that are opposite each other in the first direction X. The third end 32 is connected to the first end 21, and the support rod 30 extends parallel to the support layer 20.

[0049] In the curled state, the support layer 20 and the support rod 30 are wound around the rotating shaft 10; in the unfolded state, both the support layer 20 and the support rod 30 are unfolded along the first direction X, and the support rod 30 abuts against the side surface of the support layer 20 near the support rod 30.

[0050] This application provides a support assembly 100, including a rotating shaft 10, a support layer 20, and a support rod 30. The rotating shaft 10 is rotatable in its circumferential direction. The support layer 20 extends along a first direction X in its unfolded state, and its two opposite ends in the first direction X can be referred to as a first end 21 and a second end 22, respectively. The second end 22 is connected to the rotating shaft 10, thereby enabling the support layer 20 to switch between a rolled-up state and an unfolded state by rotating the rotating shaft 10.

[0051] Optionally, in addition to providing a winding point for the support layer 20 and support rod 30 in their curled state, the rotating shaft 10 can also be used directly as a driving component of the support assembly 100. That is, the second end 22 of the support layer 20 is directly connected to the rotating shaft 10. By rotating the shaft 10 in its circumferential direction, the support layer 20 and support rod 30 are wound back onto the shaft, returning to their curled state. Alternatively, by rotating in the opposite direction, the support layer 20 and support rod 30 are pushed outwards, unfolding for display. In this case, the rotating shaft 10 can be directly or indirectly connected to a power source capable of providing torque, such as a small electric motor. Its specific structure and driving parameters can be designed according to the parameters of the screen 200 to be installed and the usage conditions, etc., and this application does not impose specific limitations in this regard.

[0052] In this embodiment, the support rod 30 is disposed on the side of the support layer 20 near the rotating shaft 10, that is, on the side opposite to the surface of the support layer 20 where the screen 200 is to be mounted, so as to improve the flatness in the first direction X while avoiding interference with the display of the screen 200. The support rod 30 includes a plurality of support units 31 arranged sequentially end-to-end. In the unfolded state, these support units 31 are interconnected and support each other to form a rod-shaped member extending along the first direction X. Furthermore, the angle between adjacent support units 31 in the support rod 30 is adjustable, allowing the support rod 30 to bend in at least one direction, thereby allowing it to be wound around the rotating shaft 10 in a coiled state.

[0053] Specifically, the angle between the support units 31 can be adjusted in various ways, such as by rotational connection, joint bearing connection, elastic element connection, etc. When they are connected to each other to form support rod 30 in the unfolded state, they can be locked by locking structure, setting damping or rotating the whole to an angle that cannot be bent, so that they can be kept in a position that can provide flatness, that is, extending along the first direction Y and parallel to the support layer 20.

[0054] It is understood that the support rod 30 in this embodiment has a third end 32 and a fourth end 33 disposed opposite to each other in the first direction X. The third end 32 is connected to the first end 21 of the support layer 20. That is, during the unfolding and rewinding process, the support layer 20 can pull the support rod 30 to keep it moving synchronously with it. Optionally, the fourth end 33 of the support rod 30 can be connected to the rotating shaft 10 in a similar way to the second end 22, or the fourth end 33 can be connected to the second end 22, or the fourth end 33 can be set independently and pull and drive the support rod 30 only through the connection of the third end 32. This application does not make specific limitations on this, as long as it is ensured that the lengths of the support layer 20 and the support rod 30 can match each other in the unfolded and rolled states and no wrinkles occur.

[0055] Based on this, the support component 100 in this embodiment can switch between a rolled-up state and an unfolded state by rotating the pivot 10 in its circumferential direction. In the rolled-up state, the support layer 20 and the support rod 30 are simultaneously wound around the pivot 10, with the support rod 30 located inside the support layer 20. In the unfolded state, the support layer 20 and the support rod 30 unfold outward, with the support rod 30 providing flat support in the rolling direction, i.e., the first direction X. At the same time, the support layer 20 itself can provide flat support in the second direction Y, which is perpendicular to the rolling direction. This allows the support layer 20 to form a flat plane extending along the first direction X in this state, thereby providing flat support and fixation for the screen 200 to be installed, ensuring good flatness during display and improving the display effect.

[0056] In some optional embodiments, the support assembly 100 includes two support rods 30, which are respectively disposed on both ends of the support layer 20 in the second direction Y and extend parallel to each other, with the first direction X intersecting the second direction Y.

[0057] In this embodiment, a support rod 30 extending along the first direction X is further provided below the support layer 20. Specifically, two parallel support rods 30 can be provided simultaneously. These two support rods 30 can have the same diameter and be supported by the same material, so that the two support rods 30 can have the same or similar support strength. Based on this, by respectively setting the two support rods 30 at the two ends of the support layer 20 in the second direction Y, a more uniform and stable support can be provided for the support layer 20, further improving the flatness of the support layer 20 in the unfolded state.

[0058] The first direction X intersects with the second direction Y. Specifically, the first direction X can be the unfolding direction of the support layer 20 and the support rod 30, and the second direction Y can be parallel to the plane where the support layer 20 is in the unfolded state and perpendicular to the first direction X. That is, the second direction Y can be a direction perpendicular to the unfolding direction in the plane where the support layer 20 is located.

[0059] It is understood that the support component 100 in the foregoing embodiment includes two support rods 30 located at the two ends respectively. However, this application is not limited to this. In order to further improve the flatness of the support layer 20 in the unfolded state, more support rods 30 can be provided in the support component 100. These support rods 30 can be arranged parallel to each other and extend along the first direction X, and are equally spaced in the second direction Y, so as to uniformly provide support in the first direction X, thereby improving the flatness of the support layer 20 and the overall reliability of the support component 100.

[0060] Please see Figure 4 , Figure 4 yes Figure 3 Enlarged view of region P. In some optional embodiments, the support layer 20 is provided with a receiving groove 23 corresponding to the support rod 30 on the side near the support rod 30, and in the unfolded state, the support rod 30 is at least partially disposed in the receiving groove 23.

[0061] In its unfolded state, the support rod 30 in this embodiment abuts against one side surface of the support layer 20 to provide corresponding flat support. Furthermore, to fix the relative position of the support rod 30 and the support layer 20, a receiving groove 23 can be provided on the side of the support layer 20 near the support rod 30, and the support rod 30 is at least partially disposed within this receiving groove 23. It is understood that the depth of the receiving groove 23 at various points should be designed according to the shape of the support rod 30 to maintain good flatness of the support layer 20. Simultaneously, the extension dimension of the receiving groove 23 should be greater than or equal to the extension dimension of the support rod 30; that is, the receiving groove 23 should start from the position connected to the third end 32 of the support rod 30 and extend completely through the area where the support layer 20 abuts against the support rod 30.

[0062] It is understandable that the receiving groove 23 is correspondingly set with the support rod 30, that is, the receiving groove 23 and the support rod 30 have the same extension direction, and the shape of the receiving groove 23 should match the support rod 30. That is, when the cross-section of the support rod 30 is rectangular, circular or other shapes, the cross-section of the receiving groove 23 should be set to a rectangular, semi-circular or other shapes accordingly, so as to ensure that the shapes of the two match, achieve a good connection relationship, and avoid problems such as the support rod 30 sliding in the groove or detaching from the groove.

[0063] By setting the receiving slot 23, in addition to improving the reliability of the support component 100, the overall thickness of both components in the unfolded state can be reduced, thereby further reducing the overall size of the support component 100 and improving its portability.

[0064] In some optional embodiments, the thickness of the support layer 20 is 0.05 to 0.15 mm, and the maximum extension dimension of the receiving groove 23 in the thickness direction of the support layer 20 is greater than or equal to half of the support layer 20.

[0065] In this embodiment, the support layer 20, in addition to being supported by the support rod 30, also needs to provide flat support for the screen body 200 to be installed on it. Therefore, it needs to have a certain thickness, which can be, for example, 0.05 to 0.15 mm. The specific value can be designed according to the required support force and the upper limit of the overall thickness, etc. This application does not make any specific limitation on this.

[0066] Based on this, the support layer 20 also has a receiving groove 23 on the side near the support rod 30 for cooperating with the support rod 30. In order to ensure that the receiving groove 23 can exert the required limiting effect on the support rod 30, the groove itself needs to have a certain depth. Given the limited overall thickness of the support layer 20, the depth of the receiving groove 23, that is, the extension dimension in the thickness direction of the support layer 20, can be greater than or equal to half the thickness of the support layer 20, thereby ensuring the stability of the relative position between the support rod 30 and the support layer 20.

[0067] In some optional embodiments, the support assembly 100 further includes a guide block 40, which is located on the side of the support rod 30 away from the support layer 20 and near the third end 32. Along the unfolding direction of the support layer 20, the distance between the surface of the guide block 40 near the support layer 20 and the support layer 20 gradually decreases.

[0068] In embodiments where the support layer 20 is provided with a receiving groove 23, a guide block 40 may also be provided in the support assembly 100 provided in this application embodiment to allow the support rod 30 to smoothly enter the receiving groove 23. The guide block 40 is located near the position where the first end 21 of the support layer 20 in the curled state connects to the third end 32 of the support rod 30, and is located on the side of the support rod 30 away from the support layer 20. That is, during the process of switching the support assembly 100 from the curled state to the unfolded state, the ends of the support layer 20 and the support rod 30 will first pass through the guide block 40, and as they gradually unfold, the subsequent parts will also pass through the guide block 40 in sequence. Optionally, the relative position between the guide block 40 and the rotating shaft 10 can be kept fixed and will not move with changes in the state of the support assembly 100.

[0069] Based on this, the surface of the guide block 40 near the support rod 30 is a gradually convex ramp surface in the unfolding direction. That is, the distance between the surface of the guide block 40 near the support layer 20 and the support layer 20 gradually decreases along the unfolding direction of the support layer 20 and the support rod 30. On the side with a larger distance, the distance between the aforementioned ramp surface and the support layer 20 should be greater than the diameter of the support rod 30. This distance is eventually reduced to slightly greater than the extension dimension of the part of the support rod 30 exposed outside the receiving groove 23 in the thickness direction of the support layer 20. That is, during the unfolding process, the support rod 30 is gradually pressed into the receiving groove 23 by the ramp surface, so that the outer surface of the support rod 30 can abut against the bottom wall of the receiving groove 23 to form a stable support relationship.

[0070] It is understood that the ramp surface of the aforementioned guide block 40 can be a ramp plane, or the ramp surface can be a curved surface that matches the shape of the outer surface of the support rod 30. For example, in an embodiment where the cross-section of the support rod 30 is circular, the ramp surface can be an inwardly concave arc surface; in an embodiment where the cross-section of the support rod 30 is rectangular, the ramp surface can be formed with a square groove of matching size, etc., to better provide guidance for the support rod 30 and make it accurately enter the receiving groove 23.

[0071] In some optional embodiments, the support layer 20 includes a plurality of rigid support portions 24 and a plurality of flexible connection portions 25, wherein the rigid support portions 24 and the flexible connection portions 25 extend along the second direction Y and are alternately arranged in the first direction X.

[0072] In this embodiment, the support layer 20, while receiving flat support from the support rod 30, directly provides support for the screen body 200. Furthermore, the support layer 20 can provide flat support to the screen body 200 in the second direction Y, that is, in a direction perpendicular to the curling direction. In this embodiment, the support layer 20 may include rigid support portions 24 and flexible connecting portions 25 that are alternately arranged and connected to each other in the first direction X. Both can be strip-shaped members extending along the second direction Y.

[0073] Specifically, the rigid support portion 24 can have a greater strength than the flexible connection portion 25 and provide the main support function. The flexible connection portion 25 between adjacent rigid support portions 24 provides a connection function while allowing the support layer 20 to be rolled up and wound around the rotating shaft 10 in the rolled-up state. Based on this, the rigid support portion 24 can be made of metal materials with certain strength, light weight, and wear resistance, such as stainless steel, aluminum alloy, or titanium alloy. Correspondingly, the flexible connection portion 25 can be made of synthetic polymer materials or other flexible materials with certain elasticity, such as TPU (Thermoplastic polyurethanes). The specific materials of the rigid support portion 24 and the flexible connection portion 25 can be selected according to the usage and processing conditions, and this application does not impose specific limitations on them.

[0074] In some alternative embodiments, the extension dimension of the flexible connection portion 25 in the first direction X is greater than or equal to the extension dimension of the rigid support portion 24 in the first direction X.

[0075] In this embodiment, the support layer 20 can be composed of alternating rigid support portions 24 and flexible connecting portions 25, and both of them can be strips extending along the second direction Y. In this case, the width of the rigid support portion 24 can be less than or equal to the width of the flexible connecting portion 25, that is, in the first direction X, the flexible connecting portion 25 can have a larger extension dimension.

[0076] Provided that the extension dimension of the support layer 20 in the first direction X is constant and the rigid support portion 24 can provide sufficient support strength, more space can be allocated to the flexible connection portion 25 to reduce the minimum diameter required for the support layer 20 to form a curled structure, and further reduce the overall volume required for the support assembly 100 to achieve its function. It is understood that all rigid support portions 24 can have the same width L1, and all flexible connection portions 25 can have the same width L2, with L2 ≥ L1, so as to reduce the curling radius while making the support layer 20 easier to process.

[0077] In some alternative embodiments, the rigid support 24 extends 0.1 to 0.8 mm in the first direction X.

[0078] As previously mentioned, the rigid support portions 24 in the support layer 20 can all have the same width, and this width is less than or equal to the width of the flexible connection portion 25. Based on this, the width of the rigid support portion 24, that is, the extension dimension in the first direction X, can be 0.1 to 0.8 mm. Its specific width can be designed according to parameters such as its own material strength, required support strength, and overall size of the support layer 20. This application does not impose a specific limitation on this, as long as it can provide the required flat support in the second direction Y.

[0079] Please refer to the following: Figures 5 to 7 , Figure 5 This is a schematic diagram of the support rod in its unfolded state according to an embodiment of this application. Figure 6 This is a schematic diagram of the support rod in a curled state according to one embodiment of this application. Figure 7 This is a schematic diagram of the structure of a support unit provided in one embodiment of this application.

[0080] In some optional embodiments, the support rod 30 further includes an elastic connector 34. The support unit 31 is provided with a connecting hole 311 extending through it along its own extension direction. The elastic connector 34 passes through the connecting hole 311 in sequence. The two opposite ends of the support unit 31 along the first direction X are respectively provided with a protrusion 312 and a recess 313. In the unfolded state, the protrusion 312 of the support unit 31 extends into the recess 313 of the adjacent support unit 31.

[0081] In this embodiment, the support rod 30 provides support for the support layer 20 in the first direction X, and both unfold and rewind synchronously. The support rod 30 can switch between two states—curling and supporting—by providing multiple support units 31 connected end-to-end in sequence. Specifically, these support units 31 may include connecting holes 311 extending along their own extension direction, i.e., in the unfolded state, in the first direction X. Elastic connectors 34 pass through the connecting holes 311 of these support units 31 sequentially, connecting them all together to form a single unit. Therefore, the elastic connectors 34 can be flexible connecting lines with strong elasticity, such as elastic threads made of materials like silicone, nylon, or latex.

[0082] While being connected in series via elastic connectors 34, each support unit 31 may have a protrusion 312 and a recess 313 respectively provided on opposite ends in the first direction X. The protrusion 312 protrudes from the outer surface of the surrounding area, and the recess 313 may be a groove recessed to a certain depth along the first direction X, matching the shape of the protrusion 312. The protrusion 312 of each support unit 31 is paired and connected with the recess 313 of the preceding or following support unit 31 to fix the relative position between the support units 31. Optionally, the connecting hole 311 may be provided at the center of the support unit 31 to facilitate the application of force during tightening.

[0083] Specifically, in the unfolded state, the support rod 30 unfolds along the first direction X, and the protrusion 312 of each support unit 31 extends into the recess 313 of the adjacent support unit 31.

[0084] In the coiled state, the support rod 30 is wound around the rotating shaft 10. At this time, the elastic connector 34 is stretched, and there is a certain angle between the extension directions of adjacent support units 31. Therefore, each pair of mutually matching protrusions 312 and recesses 313 can retain a certain area of ​​overlap, or they can be completely separated from each other. In the embodiment where the support units 31 are separated from each other, in the coiled state, the connection within the support rod 30 can be achieved solely through the series connection of the elastic connector 34.

[0085] In the unfolded state, the support rod 30 unfolds at least partially along the first direction X. At this time, the elastic connector 34 tightens by its own elasticity, so that each support unit 31 in the unfolded area is closely connected. The connection between the protrusion 312 and the recess 313 ensures that the support units 31 are accurately aligned and connected to form a flat support rod 30 with corresponding process capabilities.

[0086] It is understood that, in order to improve the connection strength of the elastic connector 34 and the tension in the unfolded state, the support rod 30 may be provided with multiple elastic connectors 34 at the same time, or each elastic connector 34 may be provided with multiple elastic lines at the same time. These elastic lines may extend independently and in parallel, or these elastic lines may be intertwined and woven into a bundle. This application does not make any specific limitations on this.

[0087] In some alternative embodiments, the support unit 31 is a cylinder, with protrusions 312 and recesses 313 respectively disposed on the two end faces of the cylinder near the support layer 20.

[0088] In this embodiment, the support rod 30 is used to support the support layer 20 and provide good flatness. Furthermore, to avoid unevenness in the support layer 20 caused by varying distances between the cross-sectional edges and the center of the support rod 30, the support rod 30 can be a round rod, meaning that all support units 31 can be cylindrical. This ensures that even if twisting or circumferential misalignment occurs between multiple support units 31 during unfolding or rewinding, the support rod 30 can still maintain overall flatness.

[0089] Furthermore, the protrusion 312 and the recess 313 can be respectively disposed on opposite end faces of the aforementioned cylindrical support unit 31. Within this end face, the protrusion 312 and the recess 313 can both be disposed close to the support layer 20 in the thickness direction of the support layer 20, that is, at the upper part of the end face. At this time, the lower half of the cylindrical end face can abut against each other, and with the assistance of the tightened elastic connector 34, the support strength and flatness of the support rod 30 in the aforementioned thickness direction can be guaranteed.

[0090] Understandably, in the unfolded state, each support unit 31 extends along the first direction X, at which point the protrusion 312 extends into the recess 313. In the curled state, adjacent support units 31 are at a certain angle, at which point the protrusion 312 can detach from the recess 313 as the angle changes. Furthermore, to ensure smooth engagement or disengagement of the protrusion 312 and the recess 313, the groove formed by the recess 313 can extend along the thickness direction of the support layer 20 to the upper surface of the support rod 30. This allows the protrusion 312 to directly enter the recess 313 from this side when adjacent support units 31 rotate relative to each other, ensuring the reliability of the support rod 30's unfolding process.

[0091] Please refer to the following: Figure 8 and Figure 9 , Figure 8 yes Figure 1 A magnified view of region Q in the middle area. Figure 9 yes Figure 6Enlarged view of region R in the middle. In some optional embodiments, the support assembly 100 further includes a first partition plate 50 and a second partition plate 60, which extend spirally around the pivot and are spaced apart from each other. In the curled state, the first partition plate 50 is disposed between the support layer 20 and the support rod 30, and the second partition plate 60 is disposed on the side of the support rod 30 away from the support layer 20. The pivot 10 includes a shaft 11 and a flexible traction member 12, one end of which is connected to the shaft 11, and the other end of which is connected to at least one of the second end 22 and the fourth end 33.

[0092] The support assembly 100 in this embodiment includes a rotating shaft 10, a support layer 20, and a support rod 30. In a coiled state, both the support layer 20 and the support rod 30 are wound around the rotating shaft 10. Furthermore, the support assembly 100 may also include partition plates, including a first partition plate 50 and a second partition plate 60. These two partition plates can both extend in a spiral shape, have the same shape, size, and extension trajectory, and are staggered at a certain angle with the center of the rotating shaft 10 as their apex.

[0093] Based on this, taking the outermost spiral extension as an example, the first partition plate 50 forms a first track on the side away from the second partition plate 60, and a second track is formed between the first partition plate 50 and the second partition plate 60. In the curled state, the support layer 20 and the support rod 30 can be separated from each other and respectively put into the first track or the second track, so as to avoid damage caused by mutual friction between the two, and effectively improve the overall reliability of the support assembly 100.

[0094] It is understood that in the embodiment where the support assembly 100 is provided with the first partition plate 50 and the second partition plate 60, the support layer 20 and the support rod 30 are both wound up in the track. At this time, the winding and unwinding of the two components cannot be directly driven by the rotation of the main shaft 10 alone. In this case, the rotating shaft 10 may include a shaft body 11 and a flexible traction member 12. The shaft body 11 can rotate around its own circumference. At the same time, one end of the flexible traction member 12 is connected and fixed to the shaft body 11, and the other end is connected and set to at least one of the second end 22 and the fourth end 33. Thus, the flexible traction member 12 can be wound around the shaft body 11 by the rotation of the shaft body 11, and the support layer 20 and the support rod 30 can be dragged and wound back into the track as the length of the flexible traction member 12 in the track gradually shortens.

[0095] Specifically, in the curled state, the support layer 20 and the support rod 30 are respectively wound into the first track and the second track. At this time, the flexible traction member 12 is fully or at least mostly wound around the shaft 11. When it is necessary to switch to the unfolded state, a pulling force can be applied to the outer end of the support layer 20, that is, the end away from the rotating shaft 10, to pull the support layer 20 and the support rod 30 outward and flatten them to a flat state. At this time, the flexible traction member 12 moves with the tail ends of the two mentioned above and enters the first track and / or the second track.

[0096] In the unfolded state, the support layer 20 and the support rod 30 can retain at least a portion of their area within the first and second tracks to prevent misalignment during winding. When it is necessary to switch to the coiled state, the shaft 11 can be rotated to wind the flexible traction member 12 back onto the shaft 11, causing the support layer 20 and the support rod 30 to bend and return to their respective tracks.

[0097] Optionally, the flexible traction member 12 can be fixed to the outer surface of the shaft 11 at one end as described above, and retracted by rotational winding. However, it should be understood that this application is not limited to this. The end of the flexible traction member 12 connected to the shaft 11 can also be provided with a structure such as a coil spring that can automatically reset. For example, the shaft 11 can be set as a hollow shaft, and a coil spring structure can be provided in the cavity. One end of the flexible traction member 12 passes through the opening on the outer surface of the shaft 11 and connects to the internal coil spring structure. Thus, during the winding process, the flexible traction member 12 can be retracted into the shaft 11 by the elastic force of the coil spring structure.

[0098] It is understood that the flexible traction member 12 in this embodiment is used to connect at least one of the second end 22 and the fourth end 33 to the shaft 11, so that the shaft 11 can rotate to drive the flexible traction member 12 to wind around the shaft 11, and then the support layer 20 and the support rod 30 are wound back into the aforementioned first track and second track by the driving force of the flexible traction member 12. Based on this, the flexible traction member 12 mainly provides the functions of connection, dragging and traction, and it does not need to be elastic, as long as it can be wound around the shaft 11. At this time, the flexible traction member 12 can be a traction rope, or, in order to improve the reliability of the connection, the flexible traction member 12 can also be set as a strip, mesh, etc., and in order to maintain the stability of the winding process, multiple flexible traction members 12 can be arranged at intervals in the second direction Y. This application does not make any specific limitations in this regard.

[0099] Optionally, in an embodiment where the flexible traction member 12 is connected to both the second end 22 and the fourth end 33, the flexible traction member 12 connected to the aforementioned two ends should be independent of each other, and the length of the flexible traction member 12 should be adjusted according to the length and relative position of the support layer 20 and the support rod 30 to avoid wrinkling problems due to asynchronous progress of the two during the winding process.

[0100] In some alternative embodiments, the switching of the support assembly 100 state can also be achieved by using a structure capable of automatic reset, such as a coil spring structure, in the track. For example, a thin-film coil spring structure can be provided on the inner side of the support layer 20, that is, on the side near the support rod 30. Force is applied to the outer end of the support layer 20 to achieve unfolding, and a locking structure is provided to lock it in the fully unfolded position, keeping it in the unfolded state. When it is necessary to switch to the curled state, the locking structure can be released, and the elasticity of the coil spring will cause the support layer 20 and the support rod 30 to be rolled back into the track together. This application does not impose specific limitations on its specific structure, as long as it can complete the state switching.

[0101] Optionally, in order to reduce friction during the winding and unwinding process and to facilitate processing, the first partition plate 50 and the second partition plate 60 in this embodiment can be made of materials that are easy to process and mold, friction-resistant, and have good retention after polishing, such as high molecular polymer materials such as PMMA (polymethyl methacrylate, plexiglass) and ABS (acrylonitrile butadiene styrene copolymer).

[0102] It is understood that the support assembly 100 in this embodiment may further include a housing. In the curled state, the housing can accommodate the rotating shaft 10, the support layer 20, and the support rod 30 within its internal cavity. Furthermore, the housing should have openings at positions corresponding to the first end 21 and the third end 32, allowing the support layer 20 and the support rod 30 to pass through the openings for easy switching to the unfolded state. The housing can protect the internal mechanical structures and the screen 200 to be connected, thereby improving the reliability of the support assembly 100.

[0103] Please see Figure 10 , Figure 10 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 300 is provided, including a support component 100 and a screen 200 as described in any embodiment of the first aspect, wherein the screen 200 is connected to the side surface of the support layer 20 facing away from the support rod 30.

[0104] This application also proposes a display device 300, including a support component 100 and a screen 200. The screen 200 provides corresponding display functions and is supported by the support component 100, enabling the display device 300 to be rolled up and unfolded. In this case, the screen 200 can be bonded to the surface of the support layer 20 facing away from the support rod 30, allowing the support layer 20 to directly support the screen 200 and causing the screen 200 to roll up or unfold synchronously with the support layer 20.

[0105] The display device 300 provided in this application includes the support component 100 in any of the above embodiments. The display device 300 can be any product or component with display function, such as a mobile phone, tablet computer, digital photo frame, or electronic paper. The display device 300 provided in this application has all the beneficial effects of the support component 100 provided in this application. For details, please refer to the specific descriptions of the support component 100 in the above embodiments. These descriptions will not be repeated here.

[0106] 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 assembly, the support assembly being switchable between an unfolded state and a rolled-up state, characterized in that, The support assembly comprises: a rotating shaft capable of rotating along the circumferential direction thereof; a support layer having a first end and a second end opposite to each other in a first direction, the second end being connected to the rotating shaft; a support rod arranged on one side of the support layer close to the rotating shaft, the support rod comprising a plurality of support units arranged in sequence with their first ends and second ends connected to each other, the angle between adjacent support units being adjustable, the support rod having a third end and a fourth end opposite to each other in the first direction, the third end being connected to the first end and the support rod extending parallel to the support layer; in a rolled state, the support layer and the support rod are wound on the rotating shaft; in an unfolded state, the support layer and the support rod are unfolded along the first direction, and the support rod abuts against the surface of the support layer close to the support rod; the support rod further comprises elastic connecting members, the support units are provided with connecting holes penetrating along the extension direction thereof, the elastic connecting members pass through the connecting holes in sequence, and the support units are respectively provided with protruding portions and recessed portions on the two sides opposite to each other in the first direction, in the unfolded state, the protruding portion of the support unit extends into the recessed portion of the adjacent support unit.

2. The support assembly of claim 1, wherein, The support assembly comprises two support rods, the two support rods are arranged on the two side ends of the support layer in a second direction and extend parallel to each other, and the first direction intersects with the second direction.

3. The support assembly of claim 1, wherein, The side of the support layer close to the support rod is provided with a receiving groove corresponding to the support rod, and in the unfolded state, the support rod is at least partially arranged in the receiving groove.

4. The support assembly of claim 3, wherein, The thickness of the support layer is 0.05-0.15 mm, and the maximum extension size of the receiving groove in the thickness direction of the support layer is greater than or equal to one half of the thickness of the support layer.

5. The support assembly of claim 3, wherein, The support assembly further comprises a guide block, the guide block is arranged on the side of the support rod away from the support layer and close to the third end, and the distance between the side surface of the guide block close to the support layer and the support layer gradually decreases along the unfolding direction of the support layer.

6. The support assembly of claim 1, wherein, The support layer comprises a plurality of rigid support portions and a plurality of flexible connecting portions, the rigid support portions and the flexible connecting portions extend along the second direction and are arranged alternately in the first direction.

7. The support assembly of claim 6, wherein, The extension size of the flexible connecting portion in the first direction is greater than or equal to the extension size of the rigid support portion in the first direction.

8. The support assembly of claim 7, wherein, The extension size of the rigid support portion in the first direction is 0.1-0.8 mm.

9. The support assembly of claim 1, wherein, The support unit is a cylinder, and the protruding portion and the recessed portion are arranged on the partial regions of the two side end faces of the cylinder close to the support layer.

10. The support assembly of claim 1, wherein, The support assembly further comprises a first partition plate and a second partition plate, the first partition plate and the second partition plate extend spirally around the rotating shaft and are arranged at intervals, in the rolled state, the first partition plate is arranged between the support layer and the support rod, and the second partition plate is arranged on the side of the support rod away from the support layer. The rotating shaft comprises a shaft body and a flexible traction member, one end of the flexible traction member is connected to the shaft body, and the other end oppositely arranged is connected to at least one of the second end and the fourth end.

11. A display device comprising: Comprise: The support assembly according to any one of claims 1-10; The screen body is arranged on the side surface of the support layer away from the support rod.

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