Foldable support member and display device

Abstract

The application provides a foldable support member and a display device. The foldable support member comprises a rotating shaft component, a support component and a volume-variable component. The rotating shaft component comprises a fixed shaft and a rotating assembly rotatably connected to the fixed shaft, and the fixed shaft is provided with a receiving groove with an opening. The support component comprises a first support plate and a second support plate, and the first support plate and the second support plate are respectively connected to the rotating assembly, so that the foldable support member can be transformed between a bent state and a flat state, and there is a gap between the first support plate, the second support plate and the fixed shaft. The volume-variable component is arranged in the receiving groove, and the volume-variable component comprises a volume-variable body. The volume-variable component can release and shrink the volume-variable body in response to the bent state and the flat state. The foldable support member can improve the creases of the display device, so as to improve the display effect.

Description

Technical Field

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

[0002] Flexible display panels, with their good flexibility and bendability, can meet users' demand for large screens. Foldable display devices with flexible display panels can display large images when unfolded, and when folded, they are about the same size as traditional display devices and are easy to carry. As a result, foldable display devices are loved by consumers in the market.

[0003] However, in related technologies, foldable display devices are prone to causing noticeable creases in the flexible display panel in the bending area, affecting its display effect. Summary of the Invention

[0004] This application provides a foldable support member and a display device, which can improve the creases of the display device to help improve its display effect.

[0005] This application provides a foldable support member having a bent state and a flattened state. The foldable support member includes a pivot component, a support component, and a volume-variable component. The pivot component includes a fixed shaft and a rotating assembly rotatably connected to the fixed shaft. The fixed shaft has an open receiving groove. The support component supports the member to be supported and includes a first support plate and a second support plate. The first and second support plates are respectively connected to the rotating assembly to allow the foldable support member to switch between a bent state and a flattened state, and there is a gap between the first and second support plates and the fixed shaft. The volume-variable component is disposed within the receiving groove and includes a volume-variable form. The volume-variable component is capable of releasing and retracting the volume-variable form in response to the bent state and the flattened state. Specifically, in the flattened state, the volume-variable component releases at least a portion of the volume-variable form outward from the opening of the receiving groove and fills the gap; in the bent state, the volume-variable component retracts at least a portion of the volume-variable form from the gap into the receiving groove.

[0006] The foldable support member provided in this application includes a pivot component, a support component, and a variable-volume component. The pivot component includes a fixed shaft and a rotating assembly. The support component includes a first support plate and a second support plate, and the first and second support plates are connected to the rotating assembly. The rotating assembly can drive the first and second support plates to rotate around the fixed shaft, allowing the foldable support member to switch between a bent state and a flattened state. The fixed shaft has an open receiving groove, and the variable-volume component is disposed within the receiving groove. This variable-volume component includes a volumetrically variable form. Furthermore, there is a gap between the first and second support plates and the fixed shaft. The variable-volume component can release and retract the volumetrically variable form in response to the bent and flattened states of the foldable support member. When the foldable support member is in the flattened state, a small portion of the volumetrically variable form is released outward from the opening of the receiving groove and fills the gap, giving the support member better support and reducing creases in the display device, thereby improving the display effect. When the foldable support member is in the folded state, at least a portion of the volumetric variable can retract into the receiving slot, allowing the display device to have a smaller size and be easy to carry.

[0007] According to any of the foregoing embodiments of the first aspect of this application, the foldable support member further includes a sealing member surrounding the receiving groove and disposed within the gap for forming a sealed space for receiving a variable volume body.

[0008] According to any of the foregoing embodiments of the first aspect of this application, the volumetric variable is capable of reversibly expanding and contracting under the influence of pressure differences and / or capillary forces. Optionally, the opening of the receiving groove is slit-shaped.

[0009] According to any of the foregoing embodiments of the first aspect of this application, the volume-variable fluid comprises a fluid with a variable volume. Optionally, the fluid with a variable volume is selected from compressed gases and non-Newtonian liquids. Optionally, the compressed gas is selected from at least one of nitrogen, argon, and helium. Optionally, the non-Newtonian liquid is selected from at least one of polyethylene solution, polyacrylamide solution, polyvinyl chloride solution, and rubber solution.

[0010] According to any of the foregoing embodiments of the first aspect of this application, the foldable support member further includes an opening / closing component capable of opening or closing an opening in response to a bent state and a flattened state. Specifically, in the bent state, the opening / closing component closes the opening, and in the flattened state, the opening / closing component opens the opening.

[0011] According to any of the foregoing embodiments of the first aspect of this application, the volume-variable component includes a solid material with variable volume. The volume-variable component further includes a drive assembly, which, in a flattened state, drives at least a portion of the volume-variable component to release outward from the opening of the receiving groove and fill the gap, and in a bent state, drives at least a portion of the volume-variable component to contract from the gap into the receiving groove. Optionally, the density of the volume-variable solid material in the receiving groove is greater than the density of the volume-variable solid material in the gap. Optionally, the volume-variable solid material is selected from at least one of foam and cotton wool.

[0012] According to any of the foregoing embodiments of the first aspect of this application, the drive assembly includes two fixed portions and two sliding portions. The two fixed portions are disposed opposite each other within the gap. The two sliding portions are disposed on both sides of the fixed shaft and are reciprocating relative to the fixed portions. In a bent state, the two sliding portions move in a direction toward each other to drive at least a portion of the volumetric variable to contract from the gap into the receiving groove. In a flattened state, the two sliding portions move in a direction away from each other to drive at least a portion of the volumetric variable to release outward from the opening of the receiving groove and fill the gap.

[0013] According to any of the foregoing embodiments of the first aspect of this application, in a flattened state, the volumetric variable can form a support film with a thickness of 150μm-250μm.

[0014] According to any of the foregoing embodiments of the first aspect of this application, the supporting member further includes a bendable plate for supporting the bending of the member to be supported, the bendable plate being connected between the first supporting plate and the second supporting plate. In the flattened state, the volumetrically variable material fills the gap, and the bendable plate is located within the gap.

[0015] A second aspect of this application provides a display device including the foldable support member in any of the foregoing embodiments of the first aspect of this application. Attached Figure Description

[0016] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals denote the same or similar features, and the drawings are not drawn to scale.

[0017] Figure 1 This is a schematic diagram of a foldable support member in a flattened state according to an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the connection structure between the fixed shaft and the rotating assembly in a foldable support member provided in an embodiment of this application.

[0019] Figure 3This is a schematic diagram of a foldable support member in a flattened state, as provided in another embodiment of this application.

[0020] Figure 4 This is a structural schematic diagram of a foldable support member in the bending process according to an embodiment of this application.

[0021] Explanation of reference numerals in the attached figures:

[0022] 100 - Foldable support component;

[0023] 10-Rotating shaft component, 11-Fixed shaft, 11a-Main body, 11b-Shaft, 111-Receiving groove, 12-Rotating assembly, 121-Rotating component, 122-Matching component, 123-Transmission component, 1231-First transmission component, 1232-Second transmission component;

[0024] 20-Supporting component, 20a-Gap, 21-First support plate, 22-Second support plate, 23-Bendable plate;

[0025] 30 - Variable volume components;

[0026] 40 - Sealing components;

[0027] 50 - Opening and closing components. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0032] In the embodiments of this application, the term "electrical connection" can refer to a direct electrical connection between two components, or it can refer to an electrical connection between two components via one or more other components.

[0033] Various modifications and variations can be made to this application without departing from its spirit or scope, which will be apparent to those skilled in the art. Therefore, this application is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this application can be combined with each other without contradiction.

[0034] Before describing the technical solutions provided in the embodiments of this application, in order to facilitate understanding of the embodiments of this application, this application first specifically explains the problems existing in the related technologies:

[0035] Foldable display devices are popular among consumers due to their portability and large display screen.

[0036] In related technologies, a support member is provided at the bottom of the flexible display panel of a foldable display device. This support member is foldable, thus enabling the flexible display panel to fold. However, after the support member causes the flexible display panel to bend a certain number of times, the flexible display panel will develop indentations and creases, thereby affecting the display effect of the display device.

[0037] In view of this, this application provides a foldable support member and a display device, which can improve the creases of the display device to help improve its display effect. Embodiments of the foldable support member and the display device will be described below with reference to the accompanying drawings.

[0038] Foldable support components

[0039] Please refer to Figure 1 , Figure 1 This is a schematic diagram of a foldable support member in a flattened state according to an embodiment of this application.

[0040] like Figure 1 As shown, this application embodiment provides a foldable support member 100, which has a bent state and a flattened state. The foldable support member 100 includes a pivot component 10, a support component 20, and a volume-variable component 30. The pivot component 10 includes a fixed shaft 11 and a rotating assembly 12 rotatably connected to the fixed shaft 11. The fixed shaft 11 has an opening in a receiving groove 111. The support component 20 is used to support the component to be supported. The support component 20 includes a first support plate 21 and a second support plate 22, which are respectively connected to the rotating assembly 12 to allow the foldable support member 100 to switch between a bent state and a flattened state. A gap 20a exists between the first support plate 21 and the second support plate 22 and the fixed shaft 11. The volume-variable component 30 is disposed in the receiving groove 111. The volume-variable component 30 includes a volume-variable form, which can release and retract the volume-variable form in response to the bent state and the flattened state. In the flattened state, the volume-variable component 30 releases at least a portion of the volume-variable shape outward from the opening of the receiving groove 111 and fills the gap 20a. In the bent state, the volume-variable component 30 retracts at least a portion of the volume-variable shape from the gap 20a into the receiving groove 111.

[0041] In the foldable support member provided in this application embodiment, when the foldable support member 100 is in a flattened state, a small portion of the volumetric variable material is released outward from the opening of the receiving groove 111 and fills the gap 20a, giving the support member 20 a better supporting effect and improving the crease of the display device, thereby helping to improve the display effect of the display device. When the foldable support member 100 is in a folded state, at least a portion of the volumetric variable material can retract into the receiving groove 111, making the display device smaller in size and easier to carry.

[0042] In some alternative embodiments of this application, the first support plate 21 and the second support plate 22 may be made of materials with a low modulus of elasticity. For example, the first support plate 21 and the second support plate 22 may be made of steel plate, which can reduce the deformation of the first support plate 21 and the second support plate 22 when bent.

[0043] Optionally, the first support plate 21 and the second support plate 22 can be integrally formed, so that the support component 20 has a smoother support surface, avoiding scratches and damage to the support component 20.

[0044] In the embodiments of this application, the first support plate 21 and the second support plate 22 can be slidably connected to the rotating assembly 12 along the circumferential direction of the fixed axis 11, so that when the foldable support member 100 changes between a bent state and a flattened state, the first support plate 21 and the second support plate 22 can slide along the circumferential direction of the fixed axis 11.

[0045] The circumferential direction of the fixed shaft 11 refers to the direction that radiates outward from the center line of the fixed shaft 11 in a plane perpendicular to the fixed shaft 11, away from the fixed shaft 11. When the first support plate 21 and the second support plate 22 slide relative to the rotating assembly 12 along the circumferential direction of the fixed shaft 11, the first support plate 21 and the second support plate 22 can move closer to or away from the fixed shaft 11.

[0046] Please refer to Figure 2 , Figure 2 The diagram shows a connection structure of a fixed shaft and a rotating assembly in a foldable support member provided in some embodiments of this application.

[0047] like Figure 2 As shown, in some embodiments of this application, the fixed shaft 11 includes a main body 11a and a shaft 11b disposed at one end of the main body 11a. The main body 11a has an opening receiving groove 111. The shaft 11b includes two rotating shafts that are spaced apart and arranged in parallel along a second direction. The rotating shafts extend along a first direction and are rotatably disposed relative to the main body 11a. The rotating components 12 are rotatably connected to the rotating shafts respectively.

[0048] In this application, the first direction refers to the axial direction of the main body 11a, and the second direction refers to the width direction of the main body 11a.

[0049] In these optional embodiments, the shaft portion 11b of the fixed shaft 11 includes two parallel rotating shafts, to which the rotating assembly 12 is rotatably connected respectively. The parallel arrangement of the two rotating shafts reduces the included angle between the first support plate 21 and the second support plate 22 in the bent state. For example, when the two rotating shafts are parallel to each other, by reasonably adjusting the interval between the two rotating shafts within the shaft portion 11b, the first support plate 21 and the second support plate 22 in the bent state can be made parallel to each other.

[0050] In some optional embodiments of this application, the fixed shaft 11 may include two sets of shaft portions 11b, which are respectively disposed at both ends of the main body portion 11a in a first direction, and each shaft is respectively connected to a rotating component 12.

[0051] In these alternative embodiments, the shaft portion 11b is disposed at both ends in the first direction of the main body portion 11a, and the rotating shaft is also disposed at both ends of the main body portion 11a, which can reduce the volume of the rotating shaft and save space.

[0052] In embodiments of this application, the rotating assembly 12 can be any type of rotating assembly 12 used in foldable display devices in the art. In some optional embodiments of this application, the rotating assembly 12 includes a rotating component 121 and a mating component 122. The rotating component 121 is rotatably connected to a rotating shaft, and the first support plate 21 and the second support plate 22 are slidably connected to the rotating component 121 in the circumferential direction. The mating component 122 is connected to the rotating component 121 and is rotatably disposed. The rotating component 121 and the mating component 122, connected to the same set of shaft portions 11b, cooperate with each other to enable the two rotating components 121 connected to the same set of shaft portions 11b to rotate synchronously.

[0053] In these optional embodiments, the rotating assembly 12 is slidably connected to the first support plate 21 and the second support plate 22 via a rotating component 121. The two rotating components 121 and the mating component 122, connected to the same set of shaft portions 11b, cooperate with each other, enabling the two rotating components 121 to rotate synchronously, thereby driving the first support plate 21 and the second support plate 22 to rotate synchronously. When the foldable support member 100 is used in a display device, it facilitates the transformation of the display device between unfolded and folded states.

[0054] In the above embodiments, the mating component 122 can be a synchronous conveyor belt or a gear. In some alternative embodiments of this application, the mating component 122 is a gear, with two gears connected to the same set of shaft portions 11b meshing with each other, and the two gears having the same size.

[0055] In some optional embodiments of this application, the main body 11a is further provided with a fixing groove. The fixing groove and the receiving groove 111 are spaced apart on the main body 11a along a first direction, and two meshing gears are installed in the fixing groove. The fixing groove can provide protection for the gears and prevent other components from affecting the normal operation of the gears.

[0056] In some optional embodiments of this application, the rotating assembly 12 further includes a transmission component 123. One end of the transmission component 123 is connected to the rotating component 121 so that the rotating component 121 can drive the transmission component 123 to rotate. The transmission component 123 is slidably disposed relative to the rotating component 121 in the circumferential direction. The other end of the transmission component 123 is connected to the mating component 122. The rotating component 121 drives the mating component 122 to rotate through the transmission component 123.

[0057] Optionally, the transmission component 123 includes a first transmission member 1231 and a second transmission member 1232. The first transmission member 1231 is connected to the rotating component 121 so that the rotating component 121 can drive the first transmission member 1231 to rotate, and the first transmission member 1231 is slidably disposed relative to the rotating component 121 in the circumferential direction. The second transmission member 1232 is rotatably connected to the first transmission member 1231 and is rotatably connected to the mating component 122. By providing the first transmission member 1231 and the second transmission member 1232, self-locking of the transmission component 123 can be avoided, ensuring that the foldable support member 100 smoothly transitions between a bent state and a flattened state.

[0058] In some optional embodiments of this application, the rotating component 121 includes a rotating sleeve, which is sleeved on the rotating shaft, and the rotating component 121 can rotate around the rotating shaft in an angle range of 180° or greater through the rotating sleeve.

[0059] Please refer to Figure 3 , Figure 3 This is a schematic diagram of a foldable support member in a flattened state, as provided in another embodiment of this application.

[0060] like Figure 3 As shown, in some alternative embodiments of this application, the foldable support member 100 further includes a sealing member 40, which surrounds the receiving groove 111 and is disposed within the gap 20a to form a sealed space for receiving a variable volume body.

[0061] The receiving groove 111 can communicate with the sealed space through the opening, so that the sealing component 40 can help the volumetric variable to be released into the sealed space in a timely manner and to shrink from the sealed space into the receiving groove 111, and can also reduce the outflow of the volumetric variable to other areas, so as to fill the sealed space and further improve the crease of the display device.

[0062] In the above embodiments, the sealing component 40 can be any component with a sealing effect in the art, such as a sealing ring or sealant.

[0063] In some alternative embodiments of this application, the volumetric variable is capable of reversibly expanding and contracting under the influence of pressure differences and / or capillary forces.

[0064] When the volumetric variable can reversibly expand and contract under the drive of air pressure difference—that is, during the transition of the foldable support member 100 to the unfolded state—the air pressure in the receiving groove 111 is greater than the air pressure in the gap 20a, thus allowing the volumetric variable to expand from the receiving groove 111 into the gap 20a. During the transition of the foldable support member 100 to the folded state, the gap 20a is compressed, causing the air pressure in its space to be greater than the air pressure in the receiving groove 111, thus allowing the volumetric variable to contract from the gap 20a into the receiving groove 111.

[0065] In this application, capillary action refers to the tendency of a fluid to flow into or be drawn into a narrow space without external force, i.e., as a result of intermolecular attraction between or between fluid and solid materials. During the transition of the foldable support member 100 to its unfolded state, the volumetric variable can be drawn from the receiving groove 111 into the gap 20a and expand under capillary action. During the transition of the foldable support member 100 to its folded state, the volumetric variable can contract into the receiving groove 111 under capillary action.

[0066] In these alternative embodiments described above, not only can volume variability be easily controlled, but the display device can also be ensured to have a small size.

[0067] In some alternative embodiments of this application, the opening of the receiving groove 111 is slit-shaped. In this application, the slit-shaped opening may extend in the axial direction of the main body 11a or in the width direction of the main body 11a, as long as the volumetric variable can flow out or into the receiving groove 111 through the opening. This allows the volumetric variable to flow out or into the receiving groove 111 more effectively through capillary action.

[0068] In some alternative embodiments of this application, the volume-variable fluid comprises a fluid with a variable volume that is capable of undergoing volume changes under pressure differences or capillary action, and such volume changes are reversible.

[0069] In some alternative embodiments of this application, the fluid with variable volume is selected from compressed gases and non-Newtonian liquids.

[0070] Compressed gas refers to a gas with a pressure greater than atmospheric pressure. This gas can be an inert gas or compressed air.

[0071] Non-Newtonian fluids are fluids that do not obey Newton's law of viscosity, meaning that the relationship between their shear stress and shear strain rate is not linear. When a non-Newtonian fluid is not subjected to external pressure, the movement between its molecules is relatively open, with weak intermolecular bonds, and the molecules can move freely. In this state, it exhibits relatively soft, flexible, and easily deformable external characteristics. When a non-Newtonian fluid undergoes rapid deformation due to external pressure, the originally loose molecules become concentrated due to the change in force (shear thickening), and the bonding force between molecules is strengthened. At this point, the fluid's external behavior changes from "soft" to "rigid," and the greater the impact force, the stronger the intermolecular bonding force. This allows the fluid to form a supporting film within a 20a gap, providing a supporting function.

[0072] For example, the compressed gas is selected from at least one of nitrogen, argon, and helium. The non-Newtonian liquid is selected from at least one of polyethylene solution, polyacrylamide solution, polyvinyl chloride solution, and rubber solution.

[0073] In some alternative embodiments of this application, the foldable support member 100 further includes a pump, the output of which communicates with the internal space of the receiving groove 111. In these alternative embodiments, the pump allows for better control of the inflow and outflow of volumetric variations into the receiving groove 111.

[0074] Please refer to Figure 4 , Figure 4 This is a structural schematic diagram of a foldable support member in the bending process according to an embodiment of this application.

[0075] like Figure 4 As shown, in some optional embodiments of this application, the foldable support member 100 further includes an opening / closing member 50, which is capable of opening or closing an opening in response to a bent state and a flattened state. Specifically, in the bent state, the opening / closing member 50 closes the opening, and in the flattened state, the opening / closing member 50 opens the opening.

[0076] In these alternative embodiments, the opening / closing component 50 can reduce leakage of the variable-volume body in the bent state or its impact on other components.

[0077] For example, the opening and closing component 50 may include a first cover plate and a second cover plate. The first cover plate is connected to one rotating shaft of the shaft portion, and the second cover plate is connected to another rotating shaft of the shaft portion. In this way, the rotation of the rotating shaft can drive the first cover plate and the second cover plate to move in a direction that approaches or moves away from each other, thereby opening or closing the opening.

[0078] In some alternative embodiments of this application, the volumetric variable material includes a solid material with variable volume. The volumetric variable component 30 also includes a drive assembly that, in a flattened state, drives at least a portion of the volumetric variable material to release outward from the opening of the receiving groove 111 and fill the gap 20a, and in a bent state, drives at least a portion of the volumetric variable material to retract from the gap 20a into the receiving groove 111.

[0079] In these alternative embodiments, the driving component can drive the volumetric solid material to be released outward from the receiving groove 111 and fill the gap 20a, and drive the volumetric solid material to contract from the gap 20a into the receiving groove 111. Furthermore, the volumetric solid material provides better support, thereby further improving the creases of the display device.

[0080] In some alternative embodiments of this application, the density of the volumetric solid material within the receiving groove 111 is greater than the density of the volumetric solid material within the gap 20a. This facilitates rapid and reversible expansion and contraction of the volumetric solid material. When the volumetric solid material undergoes rapid internal expansion, this can quickly improve the creases of the display device.

[0081] In some alternative embodiments of this application, the volumetric solid material is selected from at least one of foam and cotton wadding. Foam and cotton wadding not only provide better support to improve the creases of the display device, but also reduce the weight of the display device, making it lightweight.

[0082] In some alternative embodiments of this application, the drive assembly includes two fixed portions and two sliding portions. The two fixed portions are disposed opposite each other within the gap 20a. The two sliding portions are disposed on both sides of the fixed shaft 11 and are reciprocating relative to the fixed portions. In a bent state, the two sliding portions move in a direction toward each other to drive at least a portion of the volumetric variable to contract from the gap 20a into the receiving groove 111. In a flattened state, the two sliding portions move in a direction away from each other to drive at least a portion of the volumetric variable to release outward from the opening of the receiving groove 111 and fill the gap 20a.

[0083] In these alternative embodiments, by the reciprocating movement of the sliding part relative to the fixed part, the solid material with variable volume can be released from the receiving groove 111 and enter the gap 20a, and can also be contracted from the gap 20a into the receiving groove 111.

[0084] In some optional embodiments of this application, the volumetric variable material, in its flattened state, can form a support film with a thickness of 150 μm-250 μm. Forming a support film within this suitable thickness range using the volumetric variable material can further improve the effect of reducing creases in the display device.

[0085] Please continue to refer to Figure 3 In some optional embodiments of this application, the support member 20 further includes a bendable plate 23 for supporting the bending of the member to be supported. The bendable plate 23 is connected between the first support plate 21 and the second support plate 22. In the flattened state, the volumetric variable fills the gap 20a, and the bendable plate 23 is located within the gap 20a. In these optional embodiments, the bendable plate 23 for supporting the bending of the member to be supported is located within the gap 20a, which allows the volumetric variable filling the gap 20a to provide better support for the member to be supported, thereby further improving the effect of the crease in the display device.

[0086] Display device

[0087] This application also provides a display device, including the foldable support member in any of the above embodiments.

[0088] In addition, the display device may also include a flexible display panel connected to a first support plate and a second support plate, so that the foldable support member can drive the flexible display panel to change between a bent state and a flattened state.

[0089] In the embodiments of this application, the display device includes, but is not limited to, mobile phones, tablets, electronic watches, e-books, televisions, access control systems, smart landline phones, consoles, and other devices with display functions.

[0090] The embodiments described above are not exhaustive, nor do they limit the application to the specific embodiments described herein. Clearly, many modifications and variations can be made based on the above description. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of this application, thereby enabling those skilled in the art to effectively utilize this application and its modifications. This application is limited only by the claims and their full scope and equivalents.

Claims

1. A foldable support component, characterized in that, The foldable support member has a bent state and a flattened state, and the foldable support member includes: A rotating shaft component includes a fixed shaft and a rotating assembly rotatably connected to the fixed shaft. The fixed shaft has an open receiving groove. The fixed shaft includes a main body and a shaft portion disposed at one end of the main body. The main body has the receiving groove with the open. The shaft portion includes two rotating shafts that are spaced apart and arranged in parallel along a second direction. The rotating shafts extend along a first direction and are rotatably disposed relative to the main body. The rotating assemblies are rotatably connected to the rotating shafts respectively. A support component for supporting the component to be supported, the support component including a first support plate and a second support plate, the first support plate and the second support plate being respectively connected to the rotating assembly, so that the foldable support component can be transformed between the bent state and the flattened state, and there is a gap between the first support plate and the second support plate and the fixed shaft; A volume-variable component is disposed within the receiving groove. The volume-variable component includes a volume-variable form, which is capable of releasing and shrinking the volume-variable form in response to the bending state and the flattening state. In the flattened state, the volume-variable component releases at least a portion of the volume-variable shape outward from the opening of the receiving groove and fills the gap; in the bent state, the volume-variable component retracts at least a portion of the volume-variable shape from the gap into the receiving groove. The volume-variable type includes solid materials with variable volume; The variable volume component further includes a drive assembly comprising: two fixed portions disposed opposite each other within the gap; and two sliding portions disposed on both sides of the fixed shaft and capable of reciprocating relative to the fixed portions. In the bent state, the two sliding portions move in a direction approaching each other to drive at least a portion of the variable volume component to contract from the gap into the receiving groove; in the flattened state, the two sliding portions move in a direction away from each other to drive at least a portion of the variable volume component to release outward from the opening of the receiving groove and fill the gap. The density of the volume-variable solid material in the receiving groove is greater than the density of the volume-variable solid material in the gap; The foldable support member further includes an opening and closing component, which includes a first cover plate and a second cover plate. The first cover plate is connected to one pivot of the shaft portion, and the second cover plate is connected to another pivot of the shaft portion. The opening and closing component is capable of opening or closing the opening in response to the bending state and the flattening state. In the bending state, the rotation of the pivot drives the first cover plate and the second cover plate to move in a direction closer to each other, and the opening and closing component closes the opening. In the flattening state, the rotation of the pivot drives the first cover plate and the second cover plate to move in a direction further away from each other, and the opening and closing component opens the opening.

2. The foldable support member according to claim 1, characterized in that, Also includes: A sealing component, surrounding the receiving groove and disposed within the gap, is used to form a sealed space for accommodating the variable-volume body.

3. The foldable support member according to claim 2, characterized in that, The volumetric variable is capable of reversibly expanding and contracting under the influence of pressure differences and / or capillary forces.

4. The foldable support member according to claim 1, characterized in that, The opening of the receiving groove is slit-shaped.

5. The foldable support member according to claim 1, characterized in that, The volume-variable solid material is selected from at least one of foam and cotton wool.

6. The foldable support member according to claim 1, characterized in that, In the flattened state, the volumetric variable can form a support film with a thickness of 150μm-250μm.

7. The foldable support member according to claim 1, characterized in that, The supporting component further includes a bendable plate for supporting the bending of the component to be supported, the bendable plate being connected between the first supporting plate and the second supporting plate; In the flattened state, the volumetric variable fills the gap, and the bendable plate is located within the gap.

8. A display device, characterized in that, Includes the foldable support member according to any one of claims 1 to 7.

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