Folding support device and folding display device

Abstract

The present application provides a folding support device and a folding display device. The folding support device includes: a support structure including a first support portion, a connecting portion, and a second support portion, wherein the first support portion and the second support portion are rotatably connected to the two ends of the connecting portion respectively; the support structure includes: a flattened state when the first support portion and the second support portion extend in a direction parallel to the first direction, and a folded state in which the first support portion and the second support portion rotate along the second direction to an extension direction that intersects the first direction; a folding assembly located on one side of the connecting portion in the second direction, the folding assembly including at least one first sliding assembly and at least one first slide rail, wherein the two ends of the first sliding assembly are connected to the first support portion and the first slide rail respectively, and in the flattened state, the length of the first sliding assembly is greater than or equal to the length of the first slide rail. The technical solution of the present application solves the problem that the folding display device has severe creases, thereby affecting the display effect.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a folding support device and a folding display device. Background Art

[0002] With the development of flexible display technology, foldable flexible display devices have gained widespread application. These foldable display devices combine portability with large-screen displays, enabling transitions between folded and unfolded states. They are particularly suitable for mobile devices, significantly improving space utilization and user experience. However, current foldable display devices suffer from severe creases, which compromise the display quality. Summary of the Invention

[0003] In view of this, the embodiments of the present application are directed to providing a folding support device and a folding display device to solve the problem that the folding display device has severe creases, thereby affecting the display effect.

[0004] The first aspect of the present application provides a folding support device, comprising: a support structure, comprising a first support part, a connecting part and a second support part, the first support part and the second support part are respectively rotatably connected to the two ends of the connecting part; the support structure comprises: a flattened state when the first support part and the second support part extend parallel to the first direction, and a folded state in which the first support part and the second support part rotate along the second direction to the extension direction of the first support part and the second support part intersects with the first direction; a folding component, located on one side of the connecting part in the second direction, the folding component comprises at least one first sliding component and at least one first slide rail, the first slide rail comprises a first end and a second end, the first end is connected to the first support part, and the second end is connected to the second support part, the first sliding component comprises a third end and a fourth end, the third end is connected to the first support part, and the fourth end is slidably connected to the first slide rail, and in the flattened state, the length of the first sliding component is greater than or equal to the length of the first slide rail; wherein the first direction and the second direction intersect.

[0005] In one embodiment, the folding state includes a first folding state and a second folding state. In the first folding state, the extension direction of the first sliding component intersects with the first direction, and the fourth end is connected to the middle section of the first slide rail; in the second folding state, the first sliding component extends along the second direction, and the fourth end is connected to the first end; in the flattened state, the first sliding component extends in a direction parallel to the first direction, and the fourth end is connected to the second end; preferably, in the folding state, along the direction parallel to the first direction, the first sliding component is located on the side of the first support part close to the second support part; preferably, the first folding state is an incomplete folding state of the support structure, and the second folding state is a completely folding state of the support structure; preferably, the first slide rail is a deformable slide rail; preferably, the first direction and the second direction are perpendicular to each other.

[0006] In one embodiment, the first sliding assembly includes a first rod and a second rod, one end of the first rod serves as the third end, the other end of the first rod is rotatably connected to one end of the second rod, and the other end of the second rod serves as the fourth end; preferably, during the process of the support structure transforming from the flattened state to the folded state, the connecting end of the first rod and the second rod moves along the second direction; during the process of the support structure transforming from the folded state to the flattened state, the connecting end of the first rod and the second rod moves in a direction opposite to the second direction.

[0007] In one embodiment, the folding component also includes at least one second sliding component and at least one second slide rail, the second slide rail and the first slide rail are arranged alternately along the third direction, the second slide rail includes a fifth end and a sixth end, the fifth end is connected to the second support portion, and the sixth end is connected to the first support portion, the second sliding component includes a seventh end and an eighth end, the seventh end is connected to the second support portion, and the eighth end is slidably connected to the second slide rail, and in the flattened state, the length of the second sliding component is greater than or equal to the length of the second slide rail.

[0008] In one embodiment, in the first folded state, the extension direction of the second sliding component intersects with the first direction, and the eighth end is connected to the middle section of the second slide rail; in the second folded state, the second sliding component extends along the second direction, and the eighth end is connected to the fifth end; in the flattened state, the second sliding component extends in a direction parallel to the first direction, and the eighth end is connected to the sixth end; preferably, the second slide rail is a deformable slide rail; preferably, in the folded state, along a direction parallel to the first direction, the second sliding component is located on the side of the second support portion close to the first support portion.

[0009] In one embodiment, the second sliding assembly includes a third rod and a fourth rod, one end of the third rod serves as the seventh end, the other end of the third rod is rotatably connected to one end of the fourth rod, and the other end of the fourth rod serves as the eighth end; preferably, during the process of the support structure transforming from the flattened state to the folded state, the connecting end of the third rod and the fourth rod moves along the second direction; during the process of the support structure transforming from the folded state to the flattened state, the connecting end of the third rod and the fourth rod moves in a direction opposite to the second direction.

[0010] In one embodiment, during the process of the support structure changing from a flattened state to a folded state, the movement directions of the first sliding component and the second sliding component are opposite; during the process of the support structure changing from a folded state to a flattened state, the movement directions of the first sliding component and the second sliding component are opposite.

[0011] In one embodiment, the folding assembly further includes at least one connecting member, at least one first sliding assembly includes multiple first sliding assemblies, at least one second sliding assembly includes multiple second sliding assemblies, two adjacent first sliding assemblies are connected by a connecting member, and two adjacent second sliding assemblies are connected by a connecting member.

[0012] In one embodiment, the folding component also includes a first ball located in the first slide rail and a plurality of first positioning blocks arranged at intervals, the first ball is connected to the fourth end; in the flattened state, the first positioning block located at the second end is used to limit the first ball; at least one first positioning block is located on the side of the first slide rail away from the connecting portion, and the first sliding component slides from the second end to the side close to the first end inside the first slide rail to achieve the folded state, and the plurality of first positioning blocks are respectively used to limit the first ball at different positions during the folding process; preferably, the folding component also includes a second ball located in the second slide rail and a plurality of second positioning blocks arranged at intervals, the second ball is connected to the eighth end; in the flattened state, the second positioning block located at the sixth end is used to limit the second ball; at least one second positioning block is located on the side of the second slide rail away from the connecting portion, and the second sliding component slides from the sixth end to the side close to the fifth end inside the second slide rail to achieve the folded state, and the plurality of second positioning blocks are respectively used to limit the second ball at different positions during the folding process.

[0013] A second aspect of the present application provides a folding display device, comprising: a folding support device as mentioned in any of the above embodiments; a display panel located on the side of the support structure away from the folding component; and a cover plate located on the side of the display panel away from the support structure.

[0014] The technical solution provided by this application effectively maintains the overall shape of the folding support device by providing a support structure, preventing the device from deforming due to external forces or internal stress, whether in the folded or flattened state. Furthermore, by ensuring that the length of the first sliding assembly is greater than or equal to the length of the first slide rail in the flattened state, tensile stress is generated between the first support portion and the second support portion, thereby reducing or eliminating creases in the folding display device. Therefore, the technical solution of this application solves the problem of severe creases in folding display devices, which affect the display effect, improves the user experience of the folding display device, and helps to enhance the durability of the folding display device.

[0015] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0017] Figure 1Shown is a bottom view of the folding support device provided in an embodiment of the present application in a flattened state.

[0018] Figure 2 Shown Figure 1 Schematic diagram of the cross-sectional structure along the section line AA'.

[0019] Figure 3 Shown is a side view of a folding support device provided by an embodiment of the present application in a first folding state.

[0020] Figure 4 Shown is a side view of the folding support device provided by one embodiment of the present application in a second folding state.

[0021] Figure 5 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state.

[0022] Figure 6 Shown Figure 5 Schematic diagram of the cross-sectional structure along the section line BB'.

[0023] Figure 7 Shown is a bottom view of the folding support device provided by one embodiment of the present application in a folded state.

[0024] Figure 8 Shown Figure 7 Schematic diagram of the cross-sectional structure along the section line C-C'.

[0025] Figure 9 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state.

[0026] Figure 10 Shown Figure 9 Schematic diagram of the cross-sectional structure along the section line D-D'.

[0027] Figure 11 Shown is a side view of a folding support device provided by another embodiment of the present application in a first folding state.

[0028] Figure 12 Shown is a side view of a folding support device provided by another embodiment of the present application in a second folding state.

[0029] Figure 13 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state.

[0030] Figure 14 Shown Figure 13 Schematic diagram of the cross-sectional structure along the section line EE'.

[0031] Figure 15Shown is a bottom view of a folding support device provided in another embodiment of the present application in a folded state.

[0032] Figure 16 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state.

[0033] Figure 17 Shown is a bottom view of a folding support device in a folded state provided by another embodiment of the present application.

[0034] Figure 18 Shown Figure 17 Schematic diagram of the cross-sectional structure along the section line F-F'.

[0035] Figure 19 Shown is a side view of a folding support device provided in another embodiment of the present application in a flattened state. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0037] Figure 1 Shown is a bottom view of the folding support device provided in an embodiment of the present application in a flattened state. Figure 2 Shown Figure 1 Schematic diagram of the cross-section structure along the section line A-A'. Figure 1 and Figure 2The folding support device includes: a support structure 100, including a first support portion 101, a connecting portion 102 and a second support portion 103, wherein the first support portion 101 and the second support portion 103 are rotatably connected to both ends of the connecting portion 102 respectively; the support structure 100 includes: a flattened state when the first support portion 101 and the second support portion 103 extend parallel to a first direction x, and a folded state in which the first support portion 101 and the second support portion 103 rotate along a second direction y to an extension direction of the first support portion 101 and the second support portion 103 intersecting the first direction x; a folding component 200, located on one side of the connecting portion 102 in the second direction y, The folding component 200 includes at least one first sliding component 201 and at least one first sliding rail 202, the first sliding rail 202 includes a first end 2021 and a second end 2022, the first end 2021 is connected to the first support portion 101, and the second end 2022 is connected to the second support portion 103, the first sliding component 201 includes a third end 2013 and a fourth end 2014, the third end 2013 is connected to the first support portion 101, and the fourth end 2014 is slidably connected to the first sliding rail 202, in the flattened state, the length of the first sliding component 201 is greater than or equal to the length of the first sliding rail 202; wherein, the first direction x and the second direction y intersect.

[0038] Specifically, the support structure 100 is used to provide support for the folding assembly 200, maintain the overall shape of the folding support device, and prevent deformation of the device due to external forces or internal stresses in the folded or flattened state. The first support portion 101 and the second support portion 103 are each rotatably connected to the connecting portion 102, enabling relative movement between the two, allowing the support structure 100 to transition between the flattened and folded states.

[0039] When the support structure 100 is in the flattened state, the first support portion 101 and the second support portion 103 extend parallel to the first direction x. When the support structure 100 transitions from the flattened state to the folded state, the first support portion 101 and the second support portion 103 rotate along the second direction y. When the first support portion 101 and the second support portion 103 rotate until the extension direction of the first support portion 101 and the second support portion 103 intersects the first direction x, the support structure 100 is in the folded state. A folding assembly 200 is provided on the side of the connecting portion 102 facing the second direction y to assist the first support portion 101 and the second support portion 103 in relative movement, thereby changing the state of the support structure 100. The folding assembly 200 includes at least one first sliding assembly 201 and at least one first slide rail 202, with the first slide rail 202 connecting the first support portion 101 and the second support portion 103 at both ends. In the flattened state, the first slide rail 202 extends parallel to the first direction x. When the support structure 100 is folded, the fourth end 2014 of the first sliding assembly 201 slides along the first slide rail 202, and its third end 2013 rotates along the first support portion 101 in the second direction y. When the support structure 100 is flattened, the fourth end 2014 of the first sliding assembly 201 slides in the opposite direction along the first slide rail 202, and its third end 2013 rotates along the first support portion 101 in the opposite direction of the second direction y. When the support structure 100 is in the flattened state, the length of the first sliding assembly 201 is greater than or equal to the length of the first slide rail 202. The third end 2013 and the fourth end 2014 of the first sliding assembly 201 can provide uniform tension at both ends of the first slide rail 202, that is, generate tensile stress between the first support portion 101 and the second support portion 103. For example, when the folding support device is applied to a folding display device, it can reduce or eliminate creases that may occur on the display device after folding.

[0040] The technical solution of this embodiment, through the provision of support structure 100, effectively maintains the overall shape of the foldable support device, preventing deformation due to external forces or internal stress, whether in the folded or flattened state. Furthermore, by ensuring that the length of the first sliding assembly 201 is greater than or equal to the length of the first slide rail 202 in the flattened state, tensile stress is generated between the first support portion 101 and the second support portion 103, thereby reducing or eliminating creases in the foldable display device. Therefore, the technical solution of this embodiment solves the problem of severe creases in foldable display devices, which can affect the display quality, improves the user experience of the foldable display device, and contributes to enhancing the durability of the foldable display device.

[0041] Figure 3 Shown is a side view of a folding support device provided by an embodiment of the present application in a first folding state. Figure 4 FIG2 is a side view of a folding support device provided by an embodiment of the present application in a second folding state. Figure 3 and Figure 4 The folding state includes a first folding state and a second folding state. In the first folding state, the extension direction of the first sliding component 201 intersects with the first direction x, and the fourth end 2014 is connected to the middle section of the first slide rail 202; in the second folding state, the first sliding component 201 extends along the second direction y, and the fourth end 2014 is connected to the first end 2021; in the flattened state, the first sliding component 201 extends parallel to the first direction x, and the fourth end 2014 is connected to the second end 2022; preferably, in the folding state, along the direction parallel to the first direction x, the first sliding component 201 is located on the side of the first support portion 101 close to the second support portion 103; preferably, the first folding state is an incomplete folding state of the support structure 100, and the second folding state is a completely folding state of the support structure 100; preferably, the first slide rail 202 is a deformable slide rail; preferably, the first direction x and the second direction y are perpendicular to each other.

[0042] Specifically, when the support structure 100 is in the flattened state, the first sliding assembly 201 extends along the first direction x, with its fourth end 2014 connected to the second end 2022 of the first slide rail 202. Tensile stress exists between the fourth end 2014 and the third end 2013. When the support structure 100 transitions from the flattened state to the first folded state, the third end 2013 of the first sliding assembly 201 moves with the first support portion 101, and the extension direction of the first sliding assembly 201 intersects the first direction x. The fourth end 2014, under the tensile force of the third end 2013, slides from the second end 2022 to the first end 2021, and the fourth end 2014 connects to the middle section of the first slide rail 202. When the support structure 100 transitions from the first folded state to the second folded state, the first sliding assembly 201 extends along the second direction y with the first support portion 101, with the fourth end 2014 connected to the first end 2021. For example, during the folding process, the first support portion 101 and the second support portion 103 both rotate toward their respective sides close to the folding assembly 200. Therefore, in the folded state of the support structure 100, in the first direction x, the first sliding assembly 201 is located on the side of the first support portion 101 close to the second support portion 103.

[0043] In the flattened state and the folded state, the relative positions of the first sliding assembly 201 and the first slide rail 202 are different. Figure 3 and Figure 4The first slide rail 202 is a deformable slide rail that can deform during the folding process based on the positional movement of the first sliding assembly 201 and the different states of the support structure 100. For example, in the flattened state, the orthographic projection of the first sliding assembly 201 on the support structure 100 and the orthographic projection of the first slide rail 202 on the support structure 100 at least partially overlap. In the second folded state, the orthographic projection of the first sliding assembly 201 on the support structure 100 and the orthographic projection of the first slide rail 202 on the support structure 100 do not overlap.

[0044] Exemplarily, the first folded state is a partially folded state of the support structure 100, and the second folded state is a fully folded state of the support structure 100. Taking the folding support device as an example, when applied to a display device, in the partially folded state, the display device allows the user to adjust the angle to achieve an optimal viewing experience. In the fully folded state, the size of the display device is minimized. Exemplarily, the first direction x and the second direction y are perpendicular to each other. When both the first support portion 101 and the second support portion 103 extend along the second direction y, the support structure 100 is in the fully folded state.

[0045] In this embodiment, when the support structure 100 is flattened, the fourth end 2014 of the first sliding assembly 201 is connected to the second end 2022 of the first slide rail 202, ensuring tensile stress between the first support portion 101 and the second support portion 103, thereby reducing or eliminating creases in the foldable display device. As the first support portion 101 rotates, the fourth end 2014 of the first sliding assembly 201 slides along the first slide rail 202, and the support structure 100 presents different degrees of folding, facilitating angle adjustment and improving the user experience.

[0046] Figure 5 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state. Figure 6 Shown Figure 5 Schematic diagram of the cross-sectional structure along the section line BB'. Figure 7 Shown is a bottom view of the folding support device provided by one embodiment of the present application in a folded state. Figure 8 Shown Figure 7 Schematic diagram of the cross-section structure along the section line C-C'. Figure 5-Figure 8The first sliding assembly 201 includes a first rod 2011 and a second rod 2012, one end of the first rod 2011 serves as the third end 2013, the other end of the first rod 2011 is rotatably connected to one end of the second rod 2012, and the other end of the second rod 2012 serves as the fourth end 2014; preferably, in the process of the support structure 100 being transformed from the flattened state to the folded state, the connection end of the first rod 2011 and the second rod 2012 moves along the second direction y; in the process of the support structure 100 being transformed from the folded state to the flattened state, the connection end of the first rod 2011 and the second rod 2012 moves in a direction opposite to the second direction y.

[0047] Specifically, one end of the first rod 2011 is connected to the first support portion 101 and moves with the first support portion 101 during the folding or unfolding of the support structure 100. The other end of the first rod 2011 is rotationally connected to one end of the second rod 2012, allowing the second rod 2012 to follow the movement of the first rod 2011. The other end of the second rod 2012 is slidably connected to the first slide rail. During the folding or unfolding of the support structure 100, the second rod 2012 slides along the first slide rail 202 under the action of the first rod 2011. The first rod 2011 and the second rod 2012 rotate relative to each other at their connection ends, enabling flexible movement of the first sliding assembly. For example, during the transition from the flattened state to the folded state, the second rod 2012 moves toward the end of the first rod 2011 near the first support portion 101. Since one end of the first rod 2011 is fixedly connected to the first support portion 101, the first rod 2011 and the second rod 2012 fold, and the connecting end of the first rod 2011 and the second rod 2012 moves along the second direction y. The connecting end of the first rod 2011 and the second rod 2012 does not contact the second support portion 103. During the transition from the folded state to the flattened state, the second rod 2012 drives the first rod 2011 toward the end of the first slide rail 202 near the second support portion 103. The connecting end of the first rod 2011 and the second rod 2012 moves in a direction opposite to the second direction y, causing the first rod 2011 and the second rod 2012 to flatten along the first direction x.

[0048] In this embodiment, the first rod 2011 and the second rod 2012 are linked to achieve flexible movement of the first sliding assembly, thereby enabling the support structure 100 to switch between the flattened state and the folded state. This arrangement makes the folding process of the support structure 100 smoother. In the flattened state, the first rod 2011 and the second rod 2012 abut against each other, generating tensile stress between them, which further helps to reduce or eliminate creases in the foldable display device.

[0049] Figure 9 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state. Figure 10Shown Figure 9 Schematic diagram of the cross-section structure along the section line D-D'. Figure 9 and Figure 10 The folding component 200 also includes at least one second sliding component 203 and at least one second slide rail 204. The second slide rail 204 and the first slide rail 202 are alternately arranged along the third direction z. The second slide rail 204 includes a fifth end 2041 and a sixth end 2042. The fifth end 2041 is connected to the second support portion 103, and the sixth end 2042 is connected to the first support portion 101. The second sliding component 203 includes a seventh end 2033 and an eighth end 2034. The seventh end 2033 is connected to the second support portion 103, and the eighth end 2034 is slidably connected to the second slide rail 204. In the flattened state, the length of the second sliding component 203 is greater than or equal to the length of the second slide rail 204.

[0050] Specifically, a second sliding assembly 203 and a second slide rail 204 are provided in the folding assembly 200. The second sliding assembly 203 is connected to the second support portion 103, ensuring the linkage between the folding assembly 200 and the second support portion 103. The second slide rail 204 and the first slide rail 202 are arranged alternately along the third direction z, ensuring that the first sliding assembly 201 and the second sliding assembly 203 do not interfere with each other during the folding or flattening process of the support structure 100. For example, multiple second slide rails 204 and multiple first slide rails 202 can be arranged alternately along the third direction z to enhance the reliability of the folding assembly 200.

[0051] When the support structure 100 is folded, the eighth end 2034 of the second sliding assembly 203 slides along the second slide rail 204, and its seventh end 2033 rotates along the second support portion 103 in the second direction y. When the support structure 100 is flattened, the eighth end 2034 of the second sliding assembly 203 slides along the second slide rail 204 in the opposite direction, and its seventh end 2033 rotates along the second support portion 103 in the opposite direction of the second direction y. When the support structure 100 is in the flattened state, the length of the second sliding assembly 203 is greater than or equal to the length of the second slide rail 204. The seventh and eighth ends 2033, 2034 of the second sliding assembly 203 can provide uniform tension at both ends of the second slide rail 204, thereby generating tensile stress between the first support portion 101 and the second support portion 103. For example, when the folding support device is applied to a folding display device, it can reduce or eliminate creases that may occur on the display device after folding.

[0052] In this embodiment, by providing at least one second sliding assembly 203 and at least one second slide rail 204, based on the above embodiments, the crease problem of the folding display device is further improved, thereby enhancing the user experience of the folding display device.

[0053] Figure 11Shown is a side view of a folding support device provided by another embodiment of the present application in a first folding state. Figure 12 FIG2 is a side view of a folding support device provided by another embodiment of the present application in a second folding state. Figure 11 and Figure 12 In the first folded state, the extension direction of the second sliding component 203 intersects with the first direction x, and the eighth end 2034 is connected to the middle section of the second slide rail 204; in the second folded state, the second sliding component 203 extends along the second direction y, and the eighth end 2034 is connected to the fifth end 2041; in the flattened state, the second sliding component 203 extends parallel to the first direction x, and the eighth end 2034 is connected to the sixth end 2042; preferably, the second slide rail 204 is a deformable slide rail; preferably, in the folded state, along the direction parallel to the first direction x, the second sliding component 203 is located on the side of the second support portion 103 close to the first support portion 101.

[0054] Specifically, when the support structure 100 is in the flattened state, the second sliding assembly 203 extends along the first direction x, with its eighth end 2034 connected to the sixth end 2042 of the second rail 204. Tensile stress exists between the eighth end 2034 and the seventh end 2033. When the support structure 100 transitions from the flattened state to the first folded state, the seventh end 2033 of the second sliding assembly 203 moves with the second support portion 103, with the extension direction of the second sliding assembly 203 intersecting the first direction x. The eighth end 2034, under the tensile force of the seventh end 2033, slides from the sixth end 2042 to the fifth end 2041, where it connects to the middle section of the second rail 204. When the support structure 100 transitions from the first folded state to the second folded state, the second sliding assembly 203 extends along the second direction y with the second support portion 103, with its eighth end 2034 connected to the fifth end 2041. For example, during the folding process, the first support portion 101 and the second support portion 103 both rotate toward their respective sides close to the folding assembly 200. Therefore, in the folded state of the support structure 100, in the first direction x, the second sliding assembly 203 is located on the side of the second support portion 103 close to the first support portion 101.

[0055] In the flattened state and the folded state, the relative positions of the second sliding assembly 203 and the second slide rail 204 are different. Figure 11 and Figure 12The second slide rail 204 is a deformable slide rail that can deform during the folding process based on the positional movement of the second sliding assembly 203 and the different states of the support structure 100. For example, in the flattened state, the orthographic projection of the second sliding assembly 203 on the support structure 100 and the orthographic projection of the second slide rail 204 on the support structure 100 at least partially overlap. In the second folded state, the orthographic projection of the second sliding assembly 203 on the support structure 100 and the orthographic projection of the second slide rail 204 on the support structure 100 do not overlap.

[0056] In this embodiment, when the support structure 100 is flattened, the eighth end 2034 of the second sliding assembly 203 is connected to the sixth end 2042 of the second rail 204, further generating tensile stress between the first support portion 101 and the second support portion 103, thereby reducing or eliminating creases in the foldable display device. As the second support portion 103 rotates, the eighth end 2034 of the second sliding assembly 203 slides along the second rail 204, and the support structure 100 presents varying degrees of folding, facilitating angle adjustment and enhancing the user experience.

[0057] Figure 13 Shown is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state. Figure 14 Shown Figure 13 Schematic diagram of the cross-sectional structure along the section line EE'. Figure 15 FIG2 is a bottom view of a folding support device in a folded state provided by another embodiment of the present application. Figure 13 -and Figure 15 The second sliding assembly 203 includes a third rod 2031 and a fourth rod 2032, one end of the third rod 2031 serves as the seventh end 2033, the other end of the third rod 2031 is rotatably connected to one end of the fourth rod 2032, and the other end of the fourth rod 2032 serves as the eighth end 2034; preferably, in the process of the support structure 100 being transformed from the flattened state to the folded state, the connection end of the third rod 2031 and the fourth rod 2032 moves along the second direction y; in the process of the support structure 100 being transformed from the folded state to the flattened state, the connection end of the third rod 2031 and the fourth rod 2032 moves in a direction opposite to the second direction y.

[0058] Specifically, one end of the third rod 2031 is connected to the second support portion 103 and moves with the second support portion 103 during the folding or unfolding of the support structure 100. The other end of the third rod 2031 is rotationally connected to one end of the fourth rod 2032, allowing the fourth rod 2032 to follow the movement of the third rod 2031. The other end of the fourth rod 2032 is slidably connected to the second slide rail 204. During the folding or unfolding of the support structure 100, the fourth rod 2032 slides along the second slide rail 204 under the action of the third rod 2031. The third rod 2031 and the fourth rod 2032 rotate relative to each other at their connection ends, enabling flexible movement of the second sliding assembly 203. For example, during the transition from the flattened state to the folded state, the fourth rod 2032 moves toward the end of the third rod 2031 near the second support portion 103. Since one end of the third rod 2031 is fixedly connected to the second support portion 103, the third rod 2031 and the fourth rod 2032 fold, and the connecting end of the third rod 2031 and the fourth rod 2032 moves in the second direction y. The connecting end of the third rod 2031 and the fourth rod 2032 does not contact the first support portion 101. During the transition from the folded state to the flattened state, the fourth rod 2032 drives the third rod 2031 toward the end of the second slide rail 204 near the first support portion 101. The connecting end of the third rod 2031 and the fourth rod 2032 moves in a direction opposite to the second direction y, causing the third rod 2031 and the fourth rod 2032 to flatten along the first direction x.

[0059] In this embodiment, the third rod 2031 and the fourth rod 2032 are linked to achieve flexible movement of the second sliding assembly 203, thereby enabling the support structure 100 to switch between the flattened state and the folded state. This arrangement makes the folding process of the support structure 100 smoother. In the flattened state, the third rod 2031 and the fourth rod 2032 abut against each other, generating tensile stress between them, further facilitating the reduction or elimination of creases in the foldable display device.

[0060] In one embodiment, during the process of the support structure 100 changing from the flattened state to the folded state, the movement directions of the first sliding component 201 and the second sliding component 203 are opposite; during the process of the support structure 100 changing from the folded state to the flattened state, the movement directions of the first sliding component 201 and the second sliding component 203 are opposite.

[0061] Specifically, during the transition of the support structure 100 from the flattened state to the folded state, the first sliding assembly 201 moves toward the first support portion 101, and the second sliding assembly 203 moves toward the second support portion 103. During the transition of the support structure 100 from the folded state to the flattened state, the first sliding assembly 201 moves toward the second support portion 103, and the second sliding assembly 203 moves toward the first support portion 101. The opposite movement directions of the first sliding assembly 201 and the second sliding assembly 203 help maintain the balance of the support structure 100 during the folding and unfolding processes, reducing the risk of tilting or instability. This symmetrical movement ensures uniform pressure distribution across the entire folding support device during the transition, thereby improving stability. For example, a user only needs to operate one sliding assembly in one direction, and the other sliding assembly will automatically move in the opposite direction, simplifying the unfolding and folding process.

[0062] In this embodiment, the first sliding assembly 201 and the second sliding assembly 203 are arranged to move in opposite directions during the folding or flattening process, thereby reducing the possibility of interference and collision between the two and improving the stability of the folding support device.

[0063] Figure 16 FIG2 is a bottom view of a folding support device provided in another embodiment of the present application in a flattened state. Figure 16 As shown, the folding component 200 also includes at least one connecting member 205, at least one first sliding component 201 includes multiple first sliding components 201, at least one second sliding component 203 includes multiple second sliding components 203, two adjacent first sliding components 201 are connected by the connecting member 205, and two adjacent second sliding components 203 are connected by the connecting member 205.

[0064] Specifically, the folding assembly 200 is further provided with at least one connector 205 for connecting adjacent first sliding assemblies or adjacent second sliding assemblies. In the flattened state, the multiple sliding assemblies and connector 205 work together to provide more uniform and stable support, helping the support device maintain its shape. In the folded state, connector 205 ensures that the movement of the multiple first sliding assemblies 201 (or second sliding assemblies 203) is consistent, facilitating a smooth folding action and reducing creases and damage.

[0065] In this embodiment, by providing a connecting member 205, multiple first sliding components 201 (or second sliding components 203) are linked, which is beneficial to enhancing the stability of the folding support device and avoiding malfunctions caused by inconsistent movement states of multiple sliding components.

[0066] Figure 17Shown is a bottom view of a folding support device in a folded state provided by another embodiment of the present application. Figure 18 Shown Figure 17 Schematic diagram of the cross-section structure along the section line F-F'. Figure 17 and Figure 18 The folding assembly 200 further includes a first ball 206 located inside the first slide rail 202 and a plurality of first positioning blocks 207 arranged at intervals. The first ball 206 is connected to the fourth end 2014. In the flattened state, the first positioning block 207 located at the second end 2022 is used to limit the first ball 206. At least one first positioning block 207 is located on the side of the first slide rail 202 away from the connecting portion 102. The first sliding assembly 201 slides from the second end 2022 to the first end 2021 inside the first slide rail 202 to achieve the folded state. The plurality of first positioning blocks 207 are respectively used to position the first ball 206 at different positions during the folding process. The first ball 206 is limited; preferably, the folding component 200 also includes a second ball located in the second slide rail 204 and a plurality of second positioning blocks arranged at intervals, and the second ball is connected to the eighth end 2034; in the flattened state, the second positioning block located at the sixth end 2042 is used to limit the second ball; at least one second positioning block is located on the side of the second slide rail 204 away from the connecting portion, and the second sliding component slides from the sixth end 2042 to the side close to the fifth end 2041 inside the second slide rail 204 to achieve a folded state, and multiple second positioning blocks are respectively used to limit the second balls at different positions during the folding process.

[0067] Specifically, the folding assembly 200 is further provided with a first ball bearing 206, which is connected to the fourth end 2014 of the first sliding assembly 201, so that the movement of the first sliding assembly 201 on the first slide rail is smoother. In addition, a plurality of first positioning blocks 207 are spaced apart on the side of the first slide rail 202 away from the connecting portion 102. Among them, the first positioning blocks 207 located at the first end 2021 and the second end 2022 limit the first ball bearing 206 in the flattened state and the second folded state respectively. At least one first positioning block 207 located in the middle section of the first slide rail 202 limits the first ball bearing 206 during the folding process to adjust the folding angle of the support structure 100. For example, see Figure 18 When the support structure 100 is transformed from the folded state to the flattened state, the first sliding assembly 201 slides on the side of the first slide rail 202 close to the connecting portion 102, and the first ball 206 can move along the Figure 18The motion trajectory shown moves to the side where the first positioning block 207 is recessed. The first positioning block 207 can be used to fix the first ball 206, thereby fixing the position of the first sliding assembly 201. For example, multiple first positioning blocks 207 are provided inside the first slide rail 202, and the first ball 206 can be fixed at different positions. The first sliding assembly 201 acts on the first support portion 101, so that the first support portion 101 stops rotating at different angles during the rotation process, thereby adjusting the folding state of the support structure 100. When the first ball 206 needs to continue moving, the first ball 206 first moves to the side of the first slide rail 202 close to the connecting portion 102, leaves the side where the first positioning block 207 is recessed, and then slides along the first slide rail 202.

[0068] For example, the folding assembly 200 may further include a second ball bearing connected to the eighth end 2034 of the second sliding assembly 203. A second positioning block may also be provided within the second slide rail 204 to limit the position of the second ball bearing. The interaction and effect between the second positioning block and the second ball bearing are similar to the interaction and effect between the first positioning block 207 and the first ball bearing 206 described above and will not be further described here.

[0069] In this embodiment, by setting a first positioning block 207 (or a second positioning block) and a first ball 206 (or a second ball), the position of the first sliding component 201 (or the second sliding component 203) in the first slide rail 202 (or the second slide rail 204) is positioned, so that the folding support device can be folded at different angles, thereby improving the flexibility of the folding support device.

[0070] It should be noted that the folding angle of the folding support device and the realization of hovering at the angle depend on the number and positions of the first positioning blocks 207 and / or the second positioning blocks.

[0071] Figure 19 FIG. 1 is a side view of a folding support device provided in another embodiment of the present application in a flattened state. Figure 19 As shown, the folding display device includes: a folding support device as mentioned in any of the above embodiments; a display panel 300, located on the side of the support structure 100 away from the folding assembly 200; and a cover plate 400, located on the side of the display panel 300 away from the support structure 100.

[0072] Specifically, a display panel 300 and a cover plate 400 are sequentially arranged on the side of the support structure 100 facing away from the folding assembly 200 to obtain a folding display device. As mentioned in the aforementioned embodiment, the folding support device includes a support structure 100 and a folding assembly 200, which can realize the flattening and folding of the device and provide stable support. The side of the display panel 300 facing away from the folding support device is the light-emitting side, which is used to display information content. The cover plate 400 is a protective structure covering the display panel 300, which protects the display panel 300 from scratches, dust and other physical damage, thereby extending the service life of the display panel 300. The folding display device is suitable for a variety of electronic devices and application scenarios, such as portable e-books, tablet computers, smart phones, etc.

[0073] The technical solution provided in this embodiment solves the problem of severe creases on the folding display device, thereby affecting the display effect, by adopting the above-mentioned folding support device, improves the user experience of the folding display device, and is conducive to enhancing the durability of the folding display device.

[0074] The folding display device has the beneficial effects of the folding support device mentioned in any of the above embodiments. Its technical principles and effects are similar and will not be described in detail here.

[0075] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this application can be achieved. This is not limited herein.

[0076] The above specific embodiments do not constitute a limitation on the scope of protection of this application. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

1. A folding support device, characterized in that: include: The supporting structure includes a first supporting portion, a connecting portion, and a second supporting portion, wherein the first supporting portion and the second supporting portion are rotatably connected to two ends of the connecting portion respectively; The support structure includes: a flattened state in which the first support portion and the second support portion extend parallel to a first direction, and a folded state in which the first support portion and the second support portion rotate along a second direction to an extension direction of the first support portion and the second support portion intersecting the first direction; a folding assembly located on one side of the connecting portion in the second direction, the folding assembly comprising at least one first sliding assembly and at least one first slide rail, the first slide rail being a deformable slide rail, the first slide rail comprising a first end and a second end, the first end being connected to the first support portion, the second end being connected to the second support portion, the first sliding assembly comprising a third end and a fourth end, the third end being connected to the first support portion, the fourth end being slidably connected to the first slide rail, and in the flattened state, the length of the first sliding assembly is greater than the length of the first slide rail; The first direction and the second direction intersect.

2. The folding support device according to claim 1, characterized in that: The folded state includes a first folded state and a second folded state. In the first folded state, the extension direction of the first sliding component intersects the first direction, and the fourth end is connected to the middle section of the first slide rail; in the second folded state, the first sliding component extends along the second direction, and the fourth end is connected to the first end; in the flattened state, the first sliding component extends parallel to the first direction, and the fourth end is connected to the second end; In the folded state, the first sliding component is located on a side of the first supporting portion close to the second supporting portion in a direction parallel to the first direction; The first folding state is an incomplete folding state of the support structure, and the second folding state is a complete folding state of the support structure; the first direction and the second direction are perpendicular to each other.

3. The folding support device according to claim 2, characterized in that: The first sliding assembly includes a first rod and a second rod, one end of the first rod serves as the third end, the other end of the first rod is rotatably connected to one end of the second rod, and the other end of the second rod serves as the fourth end; During the process of the support structure transforming from the flattened state to the folded state, the connecting end of the first rod and the second rod moves along the second direction; during the process of the support structure transforming from the folded state to the flattened state, the connecting end of the first rod and the second rod moves along the direction opposite to the second direction.

4. The folding support device according to claim 3, characterized in that: The folding assembly also includes at least one second sliding assembly and at least one second slide rail, the second slide rail and the first slide rail are alternately arranged along the third direction, the second slide rail includes a fifth end and a sixth end, the fifth end is connected to the second support portion, and the sixth end is connected to the first support portion, the second sliding assembly includes a seventh end and an eighth end, the seventh end is connected to the second support portion, and the eighth end is slidably connected to the second slide rail, and in the flattened state, the length of the second sliding assembly is greater than the length of the second slide rail.

5. The folding support device according to claim 4, characterized in that: In the first folded state, the extension direction of the second sliding assembly intersects the first direction, and the eighth end is connected to the middle section of the second slide rail; in the second folded state, the second sliding assembly extends along the second direction, and the eighth end is connected to the fifth end; in the flattened state, the second sliding assembly extends parallel to the first direction, and the eighth end is connected to the sixth end; The second slide rail is a deformable slide rail; In the folded state, the second sliding assembly is located on a side of the second supporting portion close to the first supporting portion in a direction parallel to the first direction.

6. The folding support device according to claim 5, characterized in that: The second sliding assembly includes a third rod and a fourth rod, one end of the third rod serves as the seventh end, the other end of the third rod is rotatably connected to one end of the fourth rod, and the other end of the fourth rod serves as the eighth end; During the process of the support structure transforming from the flattened state to the folded state, the connecting end of the third rod and the fourth rod moves along the second direction; during the process of the support structure transforming from the folded state to the flattened state, the connecting end of the third rod and the fourth rod moves along the direction opposite to the second direction.

7. The folding support device according to claim 6, characterized in that: During the process of the support structure transforming from the flattened state to the folded state, the movement directions of the first sliding component and the second sliding component are opposite; during the process of the support structure transforming from the folded state to the flattened state, the movement directions of the first sliding component and the second sliding component are opposite.

8. The folding support device according to claim 7, characterized in that: The folding assembly further includes at least one connecting member, at least one first sliding assembly includes multiple first sliding assemblies, at least one second sliding assembly includes multiple second sliding assemblies, two adjacent first sliding assemblies are connected by the connecting member, and two adjacent second sliding assemblies are connected by the connecting member.

9. The folding support device according to claim 8, characterized in that: The folding component also includes a first ball located in the first slide rail and a plurality of first positioning blocks arranged at intervals, the first ball being connected to the fourth end; in the flattened state, the first positioning block located at the second end is used to limit the first ball; at least one first positioning block is located on a side of the first slide rail away from the connecting portion, the first sliding component slides from the second end to a side close to the first end inside the first slide rail to achieve a folded state, and the plurality of first positioning blocks are respectively used to limit the first balls at different positions during the folding process.

10. The folding support device according to claim 9, characterized in that: The folding component also includes a second ball located in the second slide rail and a plurality of second positioning blocks arranged at intervals, the second ball being connected to the eighth end; in the flattened state, the second positioning block located at the sixth end is used to limit the second ball; at least one second positioning block is located on the side of the second slide rail away from the connecting portion, and the second sliding component slides from the sixth end to the side close to the fifth end inside the second slide rail to achieve a folded state, and the plurality of second positioning blocks are respectively used to limit the second balls at different positions during the folding process.

11. A foldable display device, characterized in that: include: The folding support device according to any one of claims 1 to 10; A display panel is located on a side of the support structure away from the folding assembly; as well as A cover plate is located on a side of the display panel away from the supporting structure.

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