Pivotable support device and display device

By using a hinge structure and a joint surface contact design, combined with the coordinated rotation of the rotating plate and the support plate, the stability problem of flexible display devices during folding and unfolding is solved, ensuring stable operation of the device within a specified range and extending its service life.

CN116547735BActive Publication Date: 2026-01-23BOE TECHNOLOGY GROUP CO LTD
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Patent Information

Application Number
CN202180002669.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-09-24
Publication Date
2026-01-23
Estimated Expiration
2041-09-24

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively support and limit the folding and unfolding process of flexible display devices, which may lead to unintentional over-folding or over-unfolding during use, affecting the lifespan and stability of the device.

Method used

The device employs a hinge and joint structure design, including first and second shafts and a joint. The hinge structure allows the joint to bend around the axis of rotation, and the folding and unfolding limits are defined by the contact of the joint surface. Combined with the coordinated rotation of the rotating plate and the support plate, a bending surface support is formed to ensure that the device can be stably folded and unfolded within a specified range.

Benefits of technology

This achieves stability and controllability of flexible display devices during folding and unfolding, avoids unintentional over-folding or unfolding, extends the service life of the device, and improves its stability in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

A pivotable support device for supporting a foldable display panel (24) is provided. The pivotable support device comprises a hinge structure (HS) and a joint structure (JS) comprising at least one row of joints (5), a respective row (RR) of joints (5) comprising a plurality of joints (5) connected to each other. A respective joint (5) of the plurality of joints (5) comprises an upper part (UP) and a lower part (LP). A respective first upper side surface (USS1) of a respective upper part (UP) of a respective first adjacent joint (AJ1) and a respective second upper side surface (USS2) of a respective upper part (UP) of a respective second adjacent joint (AJ2) define a limit to which the pivotable support device can be unfolded.
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Description

TECHNICAL FIELD

[0001] The present invention relates to display technology, and more particularly, to a pivotable support apparatus and a display apparatus. BACKGROUND

[0002] In recent years, portable display devices such as foldable flexible display devices have become the focus of research and development in display technology. A flexible display device is a bendable or deformable display device having a flexible display panel. Examples of flexible display devices include flexible organic light emitting display (OLED) devices, flexible electrophoretic display (EPD) devices, and flexible liquid crystal display (LCD) devices. As a new generation of display devices, flexible display devices are thinner and more compact, with high contrast, high responsiveness, and high brightness. It also provides full color and wide viewing angle. Flexible display devices have a wide range of applications in mobile phones, personal digital assistants (PDAs), digital cameras, onboard displays, notebook computers, wall-mounted televisions, and various military applications. A flexible display device includes a flexible array substrate. The base substrate of the flexible array substrate can be made of a flexible material such as plastic. SUMMARY

[0003] In one aspect, the present disclosure provides a pivotable support apparatus for supporting a foldable display panel, comprising: a hinge structure comprising a first shaft and a second shaft, the first shaft and the second shaft providing a first rotation axis and a second rotation axis, respectively, parallel to each other; and a joint structure comprising at least one row of joints, each row of joints comprising a plurality of joints connected to each other; wherein, in a folded state of the pivotable support apparatus, the each row of joints is bent around the hinge structure; and wherein each joint of the plurality of joints comprises an upper portion and a lower portion, the upper portion being located on a side of the lower portion away from the hinge structure; the upper portion comprises an upper surface, a first upper side surface, and a second upper side surface; and a respective contact between the first upper side surface of the upper portion of each first adjacent joint and the second upper side surface of the upper portion of each second adjacent joint defines a limit to which the pivotable support apparatus can be unfolded.

[0004] Optionally, in an unfolded state of the pivotable support apparatus, the upper surfaces of the upper portions of the plurality of joints are substantially coplanar; and the respective first upper side surface of the respective upper portion of the respective first adjacent joint is in contact with the respective second upper side surface of the respective upper portion of the respective second adjacent joint.

[0005] Optionally, the lower portion comprises a lower surface, a first lower side surface, and a second lower side surface; and a respective contact between the first lower side surface of the lower portion of the each first adjacent joint and the second lower side surface of the lower portion of the each second adjacent joint defines a limit to which the pivotable support apparatus can be folded.

[0006] Optionally, in the folded state of the pivotable support apparatus, upper surfaces of the upper portions of the plurality of joints form portions of a curved surface; and a respective first underside surface of a respective lower portion of a respective first adjacent joint is in contact with a respective second underside surface of a respective lower portion of a respective second adjacent joint.

[0007] Optionally, the pivotable support apparatus further comprises a first rotary plate and a second rotary plate; wherein the first shaft is configured to rotate with rotation of the first rotary plate, and the second shaft is configured to rotate with rotation of the second rotary plate; and wherein, in the folded state of the pivotable support apparatus, the first rotary plate and the second rotary plate are cooperatively configured to form a curved surface, and the rows of joints are configured to be at least partially supported by the curved surface.

[0008] Optionally, the first rotary plate comprises a first body and a first connecting disc protruding from a first side surface of the first body; the second rotary plate comprises a second body and a second connecting disc protruding from a second side surface of the second body; the first rotary plate comprises a first hole extending through the first connecting disc, the first shaft extends through the first hole to connect the first rotary plate with the first shaft; and the second rotary plate comprises a second hole extending through the second connecting disc, the second shaft extends through the second hole to connect the second rotary plate with the second shaft.

[0009] Optionally, the joint structure comprises a first row of joints and a second row of joints; and in the folded state of the pivotable support apparatus, the first row of joints is at least partially supported by the first connecting disc, and the second row of joints is at least partially supported by the second connecting disc.

[0010] Optionally, the lower portion comprises a lower surface, a first underside surface, and a second underside surface; and in the folded state of the pivotable support apparatus, the lower surface of a joint in the first row of joints is not in contact with the second connecting disc, and the lower surface of a joint in the second row of joints is not in contact with the first connecting disc.

[0011] Optionally, the pivotable support apparatus further comprises a first support plate and a second support plate; wherein the first shaft is configured to rotate with rotation of the first support plate and the first rotary plate, and the second shaft is configured to rotate with rotation of the second support plate and the second rotary plate; and two opposite ends of each row of joints are attached to the first support plate and the second support plate, respectively.

[0012] Optionally, the first rotating plate includes a first body and a first connecting disk protruding from a first side surface of the first body; the second rotating plate includes a second body and a second connecting disk protruding from a second side surface of the second body; the first body includes a third side surface connected to the first side surface, the third side surface at least partially supporting the first support plate; and the second body includes a fourth side surface connected to the second side surface, the fourth side surface at least partially supporting the second support plate.

[0013] Optionally, the first rotating plate and the first support plate are configured to move relative to each other when the first rotating plate rotates about the first rotation axis; and the second rotating plate and the second support plate are configured to move relative to each other when the second rotating plate rotates about the second rotation axis.

[0014] Optionally, the pivotable support device further includes a first mounting member and a second mounting member; wherein the first rotating plate includes a first groove, the first support plate includes a second groove, the first mounting member extends through the first groove and at least partially enters the second groove; the second rotating plate includes a third groove, the second support plate includes a fourth groove, the second mounting member extends through the third groove and at least partially enters the fourth groove; the first groove and the second groove restrict movement of the first mounting member in the space provided by the first groove and the second groove; and the third groove and the fourth groove restrict movement of the second mounting member in the space provided by the third groove and the fourth groove.

[0015] Optionally, the pivotable support device further includes a first sliding plate mounted on the first rotating plate and a second sliding plate mounted on the second rotating plate.

[0016] Optionally, the pivotable support device further includes a first rotating rod and a second rotating rod; the first rotating rod includes a first rod body, a first limiting post, a second limiting post, and a third limiting post, wherein the side of the second limiting post protruding from the first rod body is opposite to the side of the first limiting post and the third limiting post protruding therefrom; the second rotating rod includes a second rod body, a fourth limiting post, a fifth limiting post, and a sixth limiting post, wherein the side of the fifth limiting post protruding from the second rod body is opposite to the side of the fourth limiting post and the sixth limiting post protruding therefrom; the first rotating plate includes a first receiving groove configured to at least accommodate the first rod body; and the second rotating plate includes a second receiving groove configured to at least accommodate the second rod body.

[0017] Optionally, the first rotating plate further includes a first recess in the region of the first receiving groove, the first recess being configured to receive the first limiting post, the first limiting post extending at least partially into the first recess to connect the first limiting post to the first rotating plate; and the second rotating plate further includes a second recess in the region of the second receiving groove, the second recess being configured to receive the fourth limiting post, the fourth limiting post extending at least partially into the second recess to connect the fourth limiting post to the second rotating plate.

[0018] Optionally, the first support plate includes a first post hole configured to receive the second limiting post, the second limiting post extending at least partially into the first post hole to connect the second limiting post to the first support plate; and the second support plate includes a second post hole configured to receive the fifth limiting post, the fifth limiting post extending at least partially into the second post hole to connect the fifth limiting post to the second support plate.

[0019] Optionally, the first sliding plate includes a third post hole configured to receive the third positioning post; the first rotating plate further includes a first groove in the region of the first receiving groove; the third positioning post extends through the first groove and at least partially enters the third post hole, the first groove being configured to allow the third positioning post to move within the space provided by the first groove; the second sliding plate includes a fourth post hole configured to receive the sixth positioning post; the second rotating plate further includes a second groove in the region of the second receiving groove; and the sixth positioning post extends through the second groove and at least partially enters the fourth post hole, the second groove being configured to allow the sixth positioning post to move within the space provided by the second groove.

[0020] Optionally, the first sliding plate includes a first sliding groove and a second sliding groove opposite to each other; the second sliding plate includes a third sliding groove and a fourth sliding groove opposite to each other; the first sliding groove and the second sliding groove are configured to respectively accommodate two portions of the first rotating plate to allow the first rotating plate to move relative to the first sliding plate; and the third sliding groove and the fourth sliding groove are configured to respectively accommodate two portions of the second rotating plate to allow the second rotating plate to move relative to the second sliding plate.

[0021] Optionally, the pivotable support device further includes a frame securely attached to the first sliding plate and the second sliding plate.

[0022] Optionally, the pivotable support device further includes: a first cam rod; a second cam rod; and a cam including a first recess, a second recess, a third recess, and a fourth recess; wherein, in the unfolded state of the pivotable support device, the first cam rod is configured to engage with the first recess, and the second cam rod is configured to engage with the second recess; and in the folded state of the pivotable support device, the first cam rod is configured to engage with the third recess, and the second cam rod is configured to engage with the fourth recess.

[0023] Optionally, the pivotable support device further includes a first cam rod retainer and a second cam rod retainer, the first cam rod retainer including a first spring and the second cam rod retainer including a second spring; the first spring is configured to apply a force to the first cam rod to maintain contact between the first cam rod and the cam; the second spring is configured to apply a force to the second cam rod to maintain contact between the second cam rod and the cam; the cam includes a first protrusion located between the first recess and the third recess, and a second protrusion located between the second recess and the fourth recess; and during movement between a folded state and an unfolded state of the pivotable support device, the first cam rod contacts and slides on the surface of the first protrusion, and the second cam rod contacts and slides on the surface of the second protrusion, thereby damping movement of the pivotable support device.

[0024] Optionally, the pivotable support device further includes: an elastic support member, wherein the elastic support member includes an elastic material layer and a plurality of rigid support rods located on the side of the elastic material layer closer to the first axis and the second axis; and a fastener located on the side of the first axis and the second axis away from the plurality of rigid support rods; wherein the elastic support member includes a support column configured to engage with the fastener to secure the elastic support member.

[0025] Optionally, the pivotable support device further includes a frame located on the side of the elastic material layer away from the plurality of rigid support rods; wherein the frame includes a plurality of positioning posts, the elastic material layer includes a plurality of positioning holes, and the plurality of positioning posts are configured to engage the plurality of positioning holes respectively to fix the elastic support relative to the frame.

[0026] Optionally, the pivotable support device further includes a first rotating plate, a second rotating plate, and a cover that at least partially covers the first rotating plate and the second rotating plate; wherein the cover includes a cover positioning post, the first rotating plate and the second rotating plate include rotating plate positioning holes, and the cover positioning post is configured to engage with the rotating plate positioning holes to secure the cover to the first rotating plate and the second rotating plate.

[0027] Optionally, the pivotable support device further includes a first cam rod and a second cam rod; wherein the cover includes a cover positioning hole configured to engage with the first cam rod and the second cam rod.

[0028] Optionally, the pivotable support device may further include a flexible membrane attached to the cover.

[0029] Optionally, the pivotable support device further includes a synchronizing gear configured to synchronize the rotation of the first shaft and the second shaft.

[0030] Optionally, the pivotable support device further includes a triangular plate; wherein the triangular plate includes a first plate hole, a second plate hole, and a third plate hole; a first shaft extends through the first plate hole; a second shaft extends through the second plate hole; and a pin connecting two adjacent joints of the plurality of joints extends through the third plate hole.

[0031] Optionally, the pivotable support device further includes a torque plate configured to overfit the first shaft and the second shaft, thereby damping the rotation of the pivotable support device.

[0032] In another aspect, this disclosure provides a display device including a foldable display panel and a pivotable support device described herein or manufactured by the methods described herein. Attached Figure Description

[0033] The following figures are merely illustrative examples based on various disclosed embodiments and are not intended to limit the scope of the invention.

[0034] FIG. 1A This is a front view of a pivotable component according to some embodiments of the present disclosure.

[0035] FIG. 1B This is a rear view of a pivotable component according to some embodiments of the present disclosure.

[0036] FIG. 2A This is a side view of a pivotable component according to some embodiments of the present disclosure.

[0037] FIG. 2B This is a perspective cross-sectional view of a pivotable component according to some embodiments of the present disclosure.

[0038] FIG. 2C This is a perspective cross-sectional view of a pivotable component according to some embodiments of the present disclosure.

[0039] FIG. 3AThis is a perspective view of a corresponding connector according to some embodiments of this disclosure.

[0040] FIG. 3B The diagram illustrates the contact between adjacent joints in the deployed state of a pivotable support device according to some embodiments of the present disclosure.

[0041] FIG. 3C The diagram illustrates the contact between adjacent joints in a folded state of a pivotable support device according to some embodiments of the present disclosure.

[0042] FIG. 4A This is a perspective view of the first rotating plate according to some embodiments of the present disclosure.

[0043] FIG. 4B This is a perspective view of the second rotating plate according to some embodiments of the present disclosure.

[0044] FIG. 5A This is a perspective view of a first support plate according to some embodiments of the present disclosure.

[0045] FIG. 5B This is a perspective view of a second support plate according to some embodiments of the present disclosure.

[0046] FIG. 6A and FIG. 6B A sliding mechanism according to some embodiments of the present disclosure is shown.

[0047] FIG. 7A This is a perspective view of the first rotating rod according to some embodiments of the present disclosure.

[0048] FIG. 7B This is a perspective view of the second rotating rod according to some embodiments of the present disclosure.

[0049] FIG. 8 This is a perspective view of a triangular plate according to some embodiments of the present disclosure.

[0050] FIG. 9 This is a perspective view of a torque plate according to some embodiments of the present disclosure.

[0051] FIG. 10A and FIG. 10B This is a perspective view of an automatic locking device including a cam lever according to some embodiments of the present disclosure.

[0052] FIG. 11 This is a perspective view of a cam according to some embodiments of the present disclosure.

[0053] FIG. 12 This is a perspective view of a frame according to some embodiments of the present disclosure.

[0054] FIG. 13This is a perspective view of an elastic support member according to some embodiments of the present disclosure.

[0055] FIG. 14 This is a perspective view of the cover according to some embodiments of the present disclosure.

[0056] FIG. 15A An open-top pivotable support device is shown in some embodiments according to this disclosure.

[0057] FIG. 15B A pivotable support device with a cover is shown in some embodiments according to this disclosure.

[0058] FIG. 16 This is a rear view of a pivotable support device according to some embodiments of the present disclosure.

[0059] FIG. 17 This is a perspective cross-sectional view of a pivotable support device according to some embodiments of the present disclosure.

[0060] FIG. 18A This is a schematic diagram illustrating the structure of a pivotable support device in an unfolded state according to some embodiments of the present disclosure.

[0061] FIG. 18B This is a schematic diagram illustrating the structure of a pivotable support device in a folded state according to some embodiments of the present disclosure. Detailed Implementation

[0062] This disclosure will now be described in more detail with reference to the following embodiments. It should be noted that the following description of some embodiments presented herein is for illustrative and descriptive purposes only. It is not exhaustive or limited to the precise forms disclosed.

[0063] This disclosure provides, in particular, a pivotable support device for supporting a foldable display panel, and a display device that substantially avoids one or more problems caused by the limitations and disadvantages of the prior art. In one aspect, this disclosure provides a pivotable support device for supporting a foldable display panel. In some embodiments, the pivotable support device includes: a hinge structure including a first axis and a second axis, the first axis and the second axis respectively providing a first axis of rotation and a second axis of rotation parallel to each other; and a joint structure including at least one row of joints, each row of joints including a plurality of joints connected to each other. Optionally, in a folded state, the rows of joints are bent around the hinge structure. Optionally, each of the plurality of joints includes an upper portion and a lower portion, the upper portion being located on the side of the lower portion away from the hinge structure. Optionally, the upper portion includes an upper surface, a first upper side surface, and a second upper side surface. Optionally, the contact between the corresponding first upper surface of the corresponding upper portion of the corresponding first adjacent joint among the plurality of joints and the corresponding second upper surface of the corresponding upper portion of the corresponding second adjacent joint among the plurality of joints defines the limit to which the pivotable support device can be deployed.

[0064] In some embodiments, the pivotable support device includes at least one pivotable component. In one example, the pivotable support device includes a single pivotable component. In another example, the pivotable support device includes two pivotable components. In yet another example, the pivotable support device includes three or more pivotable components. FIG. 1A This is a front view of a pivotable component according to some embodiments of the present disclosure. FIG. 1B This is a rear view of a pivotable component according to some embodiments of this disclosure. (See reference...) FIG. 1A and FIG. 1B The pivotable support device (e.g., in a corresponding pivotable assembly) includes a hinge structure HS and a joint structure JS. The hinge structure HS includes a first axis SF1 and a second axis SF2, which respectively provide a first rotation axis AX1 and a second rotation axis AX2 parallel to each other. The joint structure JS includes at least one row of joints RR, each row of joints RR including a plurality of joints 5 connected to each other. In one example, the plurality of joints 5 are connected to each other by pins that respectively connect adjacent joints. FIG. 1A In the design, the connector structure JS comprises four rows of connectors in two groups. The first group consists of two adjacent rows arranged side by side, and the second group also consists of two adjacent rows arranged side by side. These two groups are spaced apart from each other.

[0065] refer to FIG. 1A In some embodiments, the pivotable support device further includes a synchronizing gear 4 configured to synchronize the rotation of the first shaft SF1 and the second shaft SF2.

[0066] FIG. 2A This is a side view of a pivotable component according to some embodiments of the present disclosure. FIG. 2B This is a perspective cross-sectional view of a pivotable component according to some embodiments of the present disclosure. FIG. 2C This is a perspective cross-sectional view of a pivotable component according to some embodiments of the present disclosure. (Refer to...) FIGS. 2A-2C In the folded state of the pivotable support device, each row of joints RR bends around the hinge structure HS. For example... FIG. 2A As shown, in one example, pins pn are used to connect adjacent connectors.

[0067] FIG. 3A This is a perspective view of a corresponding connector according to some embodiments of this disclosure. Reference FIG. 3A and FIG. 2A In some embodiments, the corresponding connector includes an upper part UP and a lower part LP, with the upper part UP located on the side of the lower part LP away from the hinge structure HS. The upper part includes an upper surface US, a first upper side surface USS1, and a second upper side surface USS2. In one example, each connector also includes a pin hole ph. A pin (such as...) is used... FIG. 2A (as shown in pn) connects adjacent connectors, with pins extending through the first pin hole of the first adjacent connector and the second pin hole of the second adjacent connector.

[0068] FIG. 3B The diagram illustrates the contact between adjacent joints in the deployed state of a pivotable support device according to some embodiments of the present disclosure. (Reference) FIG. 3B Each of the first adjacent joints (e.g., its corresponding one in) FIG. 3B The first upper surface of the upper part of the middle part (referred to as AJ1) (e.g., its corresponding one in FIG. 3B (referred to as USS1) and each of the second adjacent connectors (e.g., one of which is in FIG. 3B The second upper surface of the upper part of the middle part (represented as AJ2) (e.g., its corresponding one in FIG. 3B The contact between the pivotable support (represented as USS2) defines the limit to which the pivotable support can be deployed. In the deployed state of the pivotable support (e.g., as...), FIG. 1A and FIG. 1B As shown), the upper surfaces of the upper parts of the multiple connectors are substantially coplanar; the corresponding first upper surface USS1 of the corresponding upper part of the corresponding first adjacent connector AJ1 is in contact with the corresponding second upper surface USS2 of the corresponding upper part of the corresponding second adjacent connector AJ2; and the corresponding first lower surface LSS1 of the corresponding lower part of the corresponding first adjacent connector AJ1 is spaced apart from the corresponding second lower surface LSS2 of the corresponding lower part of the corresponding second adjacent connector AJ2.

[0069] See FIG. 3AIn some embodiments, the lower LP includes a lower surface LS, a first lower side surface LSS1, and a second lower side surface LSS2. FIG. 3C The contact between adjacent joints of a pivotable support device in a folded state is illustrated in some embodiments according to this disclosure. Reference FIG. 3C Each of the first adjacent joints (e.g., its corresponding one in) FIG. 3A The first lower surface of the lower part of the (represented as AJ1) (e.g., its corresponding one in) FIG. 3A (represented as LSS1) and each of the second adjacent joints (e.g., one of which is in) FIG. 3A The second lower surface of the lower part of the middle part (represented as AJ2) (e.g., its corresponding one in FIG. 3A The corresponding contact between the pivotable support device (referred to as LSS2) defines the limit to which the pivotable support device can be folded. In the folded state of the pivotable support device (e.g., as...), FIGS. 2A-2C As shown), the upper surface of the upper part of the plurality of joints forms a curved surface portion; the corresponding lower first side surface LSS1 of the corresponding lower part of the corresponding first adjacent joint AJ1 contacts the corresponding lower second side surface LSS2 of the corresponding second adjacent joint AJ2; and the corresponding upper first side surface USS1 of the corresponding upper part of the corresponding first adjacent joint AJ1 is spaced apart from the corresponding upper second side surface USS2 of the corresponding second adjacent joint AJ2.

[0070] In this pivotable support device, the surface contact between adjacent joints defines the upper and lower limits of rotation relative to the first and second rotation axes, and the pivotable support device will not unintentionally or intentionally fold beyond the upper or lower limits.

[0071] refer to FIG. 1A , FIG. 1B , FIGS. 2A-2C In some embodiments, the pivotable support device further includes a first rotating plate 1 and a second rotating plate 2. A first shaft SF1 is configured to rotate with the first rotating plate 1, and a second shaft SF2 is configured to rotate with the second rotating plate 2. (Refer to...) FIGS. 2A-2C In the folded state of the pivotable support device, the first rotating plate 1 and the second rotating plate 2 are cooperatively configured to form a curved surface, and each row of joints is configured to be at least partially supported by the curved surface.

[0072] FIG. 4A This is a perspective view of the first rotating plate according to some embodiments of the present disclosure. FIG. 4B This is a perspective view of the second rotating plate according to some embodiments of this disclosure. (Refer to...) FIG. 4AThe first rotating plate 1 includes a first body mb1 and a first connecting disk cd1 protruding from a first side surface S1 of the first body mb1. The first rotating plate 1 includes a first hole 1-1 extending through the first connecting disk cd1. (See reference...) FIG. 1A , FIG. 2A and FIG. 4A The first shaft SF1 extends through the first hole 1-1 to connect the first rotating plate 1 to the first shaft SF1.

[0073] Reference FIG. 4B The second rotating plate 2 includes a second body bm2 and a second connecting disk cd2 protruding from the second side surface S2 of the second body bm2. (Refer to...) FIG. 2A , FIG. 2B and FIG. 1A The second rotating plate 2 includes a second hole 2-1 extending through the second connecting disk cd2, and the second shaft SF2 extends through the second hole 2-1 to connect the second rotating plate 2 to the second shaft SF2.

[0074] FIG. 2B This is a cross-sectional view depicting the section showing the first row of R1 connectors. The first row of R1 connectors is arranged side-by-side with the second row of R2 connectors. (Reference) FIG. 1A In the folded state of the pivotable support device, the first row R1 joint is at least partially supported by the first connecting disc cd1. FIG. 1B This is a cross-sectional view depicting the section showing the R2 connector in the second row. (Reference) FIG. 4A The second row of R2 connectors is at least partially supported by the second connecting disc cd2.

[0075] In some embodiments, the joint corresponds to two adjacent rows arranged side by side (e.g., FIG. 5A The first row of R1 connectors and the second row of R2 connectors depicted in the image are shown. The first connecting disc cd1 of the first rotating plate 1 and the second connecting disc cd2 of the second rotating plate 2 are arranged in an alternating manner. FIG. 1B As shown, the first row of R1 connectors comprises six connectors connected to each other. In the folded state of the pivotable support device, the three connectors on the left are supported by the first rotating plate 1, while the other three connectors on the right are not supported by the second rotating plate 2 (nor by the first rotating plate 1). The three suspended connectors can still provide support for objects mounted on them (e.g., foldable display panels) because the six connectors in the first row of R1 connectors are connected by pins. Reference FIG. 4A In the folded state of the pivotable support device, the lower surface (e.g., LS) of the connector in the first row R1 connector does not contact the second connecting disc cd2.

[0076] like FIG. 5AAs shown, the second row of R2 connectors comprises six connectors connected to each other. In the folded state of the pivotable support device, the three connectors on the right are supported by the second rotating plate 2, while the other three connectors on the left are not supported by the first rotating plate 1 (nor the second rotating plate 2). The three suspended connectors can still provide support for objects mounted on them (e.g., foldable display panels) because the six connectors in the second row of R2 connectors are connected by pins. Reference FIG. 1B The lower surface (e.g., LS) of the connector in the second row R2 connector does not contact the first connecting plate cd1.

[0077] In some embodiments, reference FIG. 1A The pivotable support device also includes a first support plate 7A and a second support plate 7B. FIG. 2A This is a perspective view of a first support plate according to some embodiments of the present disclosure. FIG. 7A This is a perspective view of a second support plate according to some embodiments of this disclosure. Reference FIG. 1A , FIG. 2A and FIG. 7B The first shaft SF1 is configured to rotate with the first support plate 7A and the first rotating plate 1, and the second shaft SF2 is configured to rotate with the second support plate 7B and the second rotating plate 2. (Refer to...) FIG. 4B The two opposite ends (E1 and E2) of each row of RR connectors are attached to the first support plate 7A and the second support plate 7B respectively by pins.

[0078] refer to FIG. 5B In some embodiments, the first body mb1 further includes a third side surface S3 connected to the first side surface S1. (See reference...) FIG. 1B The third side surface S3 at least partially supports the first support plate 7A.

[0079] refer to FIG. 4B In some embodiments, the second body mb2 further includes a fourth side surface S4 connected to the second side surface S2. (See also...) FIG. 5B The fourth side surface at least partially supports the second support plate 7B.

[0080] In some embodiments, the first rotating plate 1 and the first support plate 7A are configured to move relative to each other when the first rotating plate 1 rotates about a first rotation axis AX1, and the second rotating plate 2 and the second support plate 7B are configured to move relative to each other when the second rotating plate 2 rotates about a second rotation axis AX2. FIG. 1B As shown, in the folded state of the pivotable support device, the edges of the first rotating plate 1 and the first support plate 7A are spaced apart from each other by a distance d2. FIG. 6AAs shown, in the deployed state of the pivotable support device, the edges of the first rotating plate 1 and the first support plate 7A are spaced apart by a distance d1. Optionally, d1 is less than d2. FIG. 6B As shown, in the folded state of the pivotable support device, the edges of the second rotating plate 2 and the second support plate 7B are spaced apart from each other by a distance d4. FIG. 1B As shown, in the deployed state of the pivotable support device, the edges of the second rotating plate 2 and the second support plate 7B are spaced apart from each other by a distance d3. Optionally, d3 is less than d4.

[0081] In some embodiments, when the pivotable support device is in a folded state, the area of ​​the first rotating plate 1 not covered by the first support plate 7A is greater than the area of ​​the first rotating plate 1 not covered by the first support plate 7A when the pivotable support device is in an unfolded state; and when the pivotable support device is in a folded state, the area of ​​the second rotating plate 2 not covered by the second support plate 7B is greater than the area of ​​the second rotating plate 2 not covered by the second support plate 7B when the pivotable support device is in an unfolded state.

[0082] In some embodiments, a first support plate 7A is mounted on a first rotating plate 1, and a second support plate 7B is mounted on a second rotating plate 2. (See reference) FIG. 6B In some embodiments, the pivotable support device further includes a first mounting member 25A for mounting the first support plate 7A on the first rotating plate 1, and a second mounting member 25B for mounting the second support plate 7B on the second rotating plate 2.

[0083] refer to FIG. 1A The first rotating plate 1 includes first grooves 1-2. (See reference) FIG. 1B The first support plate 7A includes a second groove 7A-1. (See reference) FIG. 7A , FIG. 7A and FIG. 4A The first mounting member 25A extends through the first slot 1-2 and at least partially enters the second slot 7A-1, thereby mounting the first support plate 7A onto the first rotating plate 1. The first slot 1-2 and the second slot 7A-1 restrict the movement of the first mounting member 25A within the space provided by the first slot 1-2 and the second slot 7A-1. FIG. 7A In one example shown, the space provided by the first slot 1-2 and the second slot 7A-1 has an elongated shape, the longitudinal direction of which is along a direction that intersects (e.g., is perpendicular) the first axis SF1 and the second axis SF2, substantially restricting the movement of the first mounting member 25A in the longitudinal direction.

[0084] The first support plate 7A also includes a third hole 7A-2. The second support plate 7B also includes a fourth hole 7B-2. (See reference...) FIG. 6A , FIG. 7B and FIG. 7BThe first end E1 of each row of RR connectors is connected to the first support plate 7A via a pin extending through the third hole 7A-2. (Refer to...) FIG. 4B , FIG. 7B and FIG. 4A The second end E2 of each row of RR connectors is connected to the second support plate 7B by a pin extending through the fourth hole 7B-2.

[0085] See FIG. 4A The second rotating plate 2 includes a third groove 2-2. See also... FIG. 7A The second support plate 7B includes a fourth groove 7B-1. See also... FIG. 4B , FIG. 4B and FIG. 7B The second mounting member 25B extends through the third slot 2-2 and at least partially enters the fourth slot 7B-1, thereby mounting the second support plate 7B onto the second rotating plate 2. The third slot 2-2 and the fourth slot 7B-1 restrict the movement of the second mounting member 25B within the spaces provided by the third slot 2-2 and the fourth slot 7B-1. FIG. 5A In one example shown, the spaces provided by the third slot 2-2 and the fourth slot 7B-1 have an elongated shape, the longitudinal direction of which is along a direction that intersects (e.g., perpendicular to) the first axis SF1 and the second axis SF2, substantially restricting the movement of the second mounting member 25B in the longitudinal direction.

[0086] FIG. 7A and FIG. 5B A sliding mechanism according to some embodiments of the present disclosure is shown. (Refer to...) FIG. 7B and FIG. 6B The pivotable support device also includes a first sliding plate 10A mounted on the first rotating plate 1 and a second sliding plate 10B mounted on the second rotating plate 2.

[0087] In some embodiments, reference FIG. 7A and FIG. 4A The pivotable support device also includes a first rotating rod 8A for mounting the first sliding plate 10A onto the first rotating plate 1, and a second rotating rod 8B for mounting the second sliding plate 10B onto the second rotating plate 2.

[0088] FIG. 6B This is a perspective view of the first rotating rod according to some embodiments of this disclosure. (Refer to...) FIG. 7A The first rotating rod 8A includes a first rod body rmb1, a first limiting post 8A-1, a second limiting post 8A-2, and a third limiting post 8A-3. The side of the second limiting post 8A-2 protruding from the first rod body rmb1 is opposite to the sides of the first limiting post 8A-1 and the third limiting post 8A-3 protruding from their respective sides. (See reference...) FIG. 6B , FIG. 7B and FIG. 4BThe first rotating plate 1 includes a first receiving groove 1-3 configured to receive at least the first rod body rmb1.

[0089] FIG. 6B This is a perspective view of the second rotating rod according to some embodiments of this disclosure. (Refer to...) FIG. 7B The second rotating rod 8B includes a second rod body rmb2, a fourth limiting post 8B-1, a fifth limiting post 8B-2, and a sixth limiting post 8B-3. The side of the fifth limiting post 8B-2 protruding from the second rod body rmb2 is opposite to the sides of the fourth limiting post 8B-1 and the sixth limiting post 8B-3 protruding from their respective sides. (See reference...) FIG. 1A and FIG. 1A The second rotating plate 2 includes a second receiving groove 2-3 configured to at least accommodate the second rod body rmb2.

[0090] refer to FIG. 8 In some embodiments, the first rotating plate further includes a first recess dt1 within the region of the first receiving groove 1-3. (See reference...) FIG. 1A and FIG. 8 The first recess dt1 is configured to receive the first limiting post 8A-1. The first limiting post 8A-1 extends at least partially into the first recess dt1, thereby connecting the first limiting post 8A-1 to the first rotating plate 1.

[0091] refer to FIG. 9 In some embodiments, the second rotating plate further includes a second recess dt2 within the region of the second receiving groove 2-3. (See reference...) FIG. 1A and FIG. 9 The second recess dt2 is configured to accommodate the fourth limiting post 8B-1. The fourth limiting post 8B-1 extends at least partially into the second recess dt2, thereby connecting the fourth limiting post 8B-1 to the second rotating plate 2.

[0092] refer to FIG. 10A and FIG. 11 In some embodiments, the first support plate 7A includes a first post hole 7A-3 configured to receive a second limiting post 8A-2, the second limiting post 8A-2 extending at least partially into the first post hole 7A-3, thereby connecting the second limiting post 8A-2 to the first support plate 7A.

[0093] Reference FIG. 1A and FIGS. 10A-10B In some embodiments, the second support plate 7B includes a second post hole 7B-3 configured to receive a fifth limiting post 8B-2, the fifth limiting post 8B-2 extending at least partially into the second post hole 7B-3, thereby connecting the fifth limiting post 8B-2 to the second support plate 7B.

[0094] Reference FIG. 11 and FIG. 12In some embodiments, the first sliding plate 10A includes a third post hole 10A-h, which is configured to receive a third limiting post 8A-3. (Refer to...) FIG. 12 In some embodiments, the first rotating plate 1 further includes a first groove gv1 within the region of the first receiving groove 1-3. Optionally, the first groove gv1 has a curved trajectory. (See reference...) FIG. 15B and FIG. 13 The third limiting post 8A-3 extends through the first groove gv1 and at least partially enters the third post hole 10A-h. The first groove gv1 is configured to allow the third limiting post 8A-3 to move within the space provided by the first groove gv1.

[0095] Reference FIG. 13 and FIG. 1A In some embodiments, the second sliding plate 10B includes a fourth post hole 10B-h, which is configured to receive a sixth limiting post 8B-3. (See also...) FIG. 12 In some embodiments, the second rotating plate 2 further includes a second groove gv2 within the region of the second receiving groove 2-3. Optionally, the second groove gv2 has a curved trajectory. (See reference...) FIG. 13 and FIG. 14 The sixth locating post 8B-3 extends through the second groove gv2 and at least partially enters the fourth post hole 10B-h. The second groove gv2 is configured to allow the sixth locating post 8B-3 to move within the space provided by the second groove gv2.

[0096] Reference FIG. 15A In some embodiments, the first sliding plate 10A includes a first side portion 9A and a second side portion 9B. The first side portion 9A includes a first sliding groove sgv1, and the second side portion 9B includes a second sliding groove sgv2. The first sliding groove sgv1 and the second sliding groove sgv2 are opposite to each other. The first sliding groove sgv1 and the second sliding groove sgv2 are configured to respectively receive two portions of the first rotating plate 1 to allow the first rotating plate 1 to move relative to the first sliding plate 10A.

[0097] Reference FIG. 15B In some embodiments, the second sliding plate 10B includes a third side portion 9C and a fourth side portion 9D. The third side portion 9C includes a third sliding groove sgv3, and the fourth side portion 9D includes a fourth sliding groove sgv4. The third sliding groove sgv3 and the fourth sliding groove sgv4 are opposite to each other. The third sliding groove sgv3 and the fourth sliding groove sgv4 are configured to respectively receive two portions of the second rotating plate 2 to allow the second rotating plate 2 to move relative to the second sliding plate 10B.

[0098] In this pivotable support device, the first rotating rod 8A and the second rotating rod 8B are used to amplify the sliding movement of the first support plate 7A and the second support plate 7B, respectively. The amplified sliding movement is then transmitted to the first sliding plate 10A and the second sliding plate 10B, respectively. Next, the amplified sliding movement is transmitted to the frame of the pivotable support device, which is connected to the first sliding plate 10A and the second sliding plate 10B. The degree of amplification of the sliding movement can be changed by adjusting the first rotating rod 8A and the second rotating rod 8B.

[0099] In some embodiments, the pivotable support device further includes a triangular plate. FIG. 15B This is a perspective view of a triangular plate according to some embodiments of this disclosure. (Refer to...) FIG. 14 and FIG. 15A The triangular plate 6 includes a first plate hole ph1, a second plate hole ph2, and a third plate hole ph3. A first shaft SF1 extends through the first plate hole ph1. A second shaft SF2 extends through the second plate hole ph2. Pins connecting two adjacent joints of the multiple joints 5 extend through the third plate hole ph3, thereby ensuring that each row of RR joints is symmetrically folded.

[0100] In some embodiments, the pivotable support device further includes a torque plate. FIG. 15B This is a perspective view of a torque plate according to some embodiments of this disclosure. Reference FIG. 4A and FIG. 4B In some embodiments, the torque plate 21 is configured to overfit with the first shaft SF1 and the second shaft SF2, thereby damping the rotation of the pivotable support device.

[0101] In some embodiments, the pivotable support device further includes an automatic locking device. FIG. 14 and 10B This is a perspective view of an automatic locking device including a cam lever according to some embodiments of the present disclosure. FIG. 10A This is a perspective view of a cam according to some embodiments of this disclosure. (Refer to...) FIG. 10B , FIG. 16 ,and FIG. 16 In some embodiments, the pivotable support device further includes a first cam rod 12A; a second cam rod 12B; and a cam 13 having a first slot 13-1, a second slot 13-2, a third slot 13-3, and a fourth slot 13-4. In the deployed state of the pivotable support device, the first cam rod 12A is configured to engage with the first slot 13-1, and the second cam rod 12B is configured to engage with the second slot 13-2, thereby locking the pivotable support device at the position defined by the engagement between the first cam rod 12A and the first slot 13-1, and the engagement between the second cam rod 12B and the second slot 13-2.

[0102] In the folded state of the pivotable support device, the first cam rod 12A is configured to engage with the third slot 13-3, and the second cam rod 12B is configured to engage with the fourth slot 13-4, thereby locking the pivotable support device at the position defined by the engagement between the first cam rod 12A and the third slot 13-3 and the engagement between the second cam rod 12B and the fourth slot 13-4.

[0103] In some embodiments, the pivotable support device further includes a first cam rod retainer RT1 having a first spring SP1 and a second cam rod retainer RT2 having a second spring SP2. The first spring SP1 is configured to apply a force to the first cam rod 12A to retain the first cam rod 12A in contact with the cam 13. The second spring SP2 is configured to apply a force to the second cam rod 12B to retain the second cam rod 12B in contact with the cam 13. Optionally, the first spring SP1 is configured to apply a force when the pivotable support device is in a folded state, an unfolded state, or at any position during movement between the folded and unfolded states. Optionally, the second spring SP2 is configured to apply a force when the pivotable support device is in a folded state, an unfolded state, or at any position during movement between the folded and unfolded states.

[0104] In some embodiments, the cam 13 includes a first protrusion BP1 located between a first slot 13-1 and a third slot 13-3, and a second protrusion BP2 located between a second slot 13-2 and a fourth slot 13-4. In this pivotable support device, during movement between a folded state and an unfolded state, the first cam rod 12A contacts and slides on the surface of the first protrusion BP1, and the second cam rod 12-B contacts and slides on the surface of the second protrusion BP2, thereby damping the movement of the pivotable support device.

[0105] In some embodiments, the pivotable support device further includes a frame. In one example, the frame may be made of a single piece. In another example, the frame may include multiple (e.g., two) pieces. FIG. 14 This is a perspective view of a frame according to some embodiments of the present disclosure. FIG. 16 A frame corresponding to one half of the pivotable support device is depicted; for example, the pivotable support device may include another frame corresponding to the other half of the pivotable support device.

[0106] In some embodiments, the frame 14 is securely attached to the first sliding plate and the second sliding plate. The frame 14 includes a plurality of positioning posts 14-1 configured to fix an elastic support relative to the frame 14; a plurality of positioning protrusions 14-2 for securing the sliding plates (e.g., the first sliding plate 10A or the second sliding plate 10B) and sliding grooves (e.g., the first sliding groove sgv1, the second sliding groove sgv2, the third sliding groove sgv3, or the fourth sliding groove sgv4) therein; and a hole 14-3 for receiving the spring positioning rod 17 (e.g., see...). FIG. 17 Spring 18 partially contacts the corresponding hole in the surrounding hole 14-3 of frame 14 and applies a force to frame 14. When the foldable display panel is mounted on the pivotable support, the force from spring 18 facilitates the unfolding of the foldable display panel when the pivotable support is in the unfolded state.

[0107] In some embodiments, the pivotable support device further includes a resilient support member. FIG. 16 This is a perspective view of an elastic support member according to some embodiments of this disclosure. (Refer to...) FIG. 17 The elastic support 15 includes an elastic material layer 15-2 and a plurality of rigid support rods 15-1 located on the side of the elastic material layer 15-2 closer to the first axis SF1 and the second axis SF2. (See reference) FIG. 1A In some embodiments, the pivotable support device further includes a fastener 26 located on the side of the first axis SF1 and the second axis SF2 away from the plurality of rigid support rods 15-1. The resilient support 15 also includes a support post 15-4 configured to engage with the fastener 26 to secure the resilient support 15. By engaging the fastener 26 with the support post 15-4, it prevents the foldable display panel from bulging out in the folded area when the pivotable support device is in the folded state.

[0108] The elastic material layer 15-2 can be made of any suitable elastic material, such as rubber. The elastic material layer 15-2 is configured to provide a flat surface. The plurality of rigid support rods 15-1 can be made of any suitable rigid material (e.g., steel).

[0109] In some embodiments, the resilient support 15 further includes a plurality of positioning holes 15-3. For example... FIG. 16 and FIG. 1A As shown, the plurality of positioning posts 14-1 in the frame 14 are configured to engage with the plurality of positioning holes 15-3 respectively to fix the elastic support with respect to the frame 14.

[0110] In some embodiments, the pivotable support device also includes a cover. In one example, the cover may be made of a single piece. In another example, the cover may include multiple (e.g., two) pieces. FIG. 18A This is a perspective view of the cover according to some embodiments of the present disclosure.FIG. 18B An open-top pivotable support device is shown in some embodiments according to this disclosure. FIG. 18A A pivotable support device with a cover is shown in some embodiments according to this disclosure. FIG. 18B A pivotable support device with a two-piece cover is depicted. (Refer to...) ​ , ​ and ​ In some embodiments, the cover 16 at least partially covers the first rotating plate 1 and the second rotating plate 2.

[0111] In some embodiments, the cover 16 includes cover positioning posts 16-2. (See reference) ​ and ​ In some embodiments, the first rotating plate 1 includes a first rotating plate positioning hole 1-4, and in some embodiments, the second rotating plate 2 includes a second rotating plate positioning hole 2-4. In some embodiments, the cover positioning post 16-2 is configured to engage with the rotating plate positioning hole to secure the cover to the first rotating plate 1 and the second rotating plate 2.

[0112] In some embodiments, the cover 16 further includes a cover positioning hole 16-1. (See reference...) ​ , ​ and ​ The cover positioning hole 16-1 is configured to engage with the first cam rod 12A and the second cam rod 12B.

[0113] ​ This is a rear view of a pivotable support device according to some embodiments of this disclosure. (Refer to...) ​ In some embodiments, the pivotable support device further includes a flexible membrane 19 attached to the cover. See also ​ and ​ In some embodiments, the cover 16 further includes membrane positioning posts 16-3 for securing the flexible membrane 19.

[0114] ​ This is a perspective cross-sectional view of a pivotable support device according to some embodiments of this disclosure. Reference ​ and ​ In some embodiments, the pivotable support device also includes a rear cover 20 covering the rear side of the pivotable support device.

[0115] refer to ​ and ​ In some embodiments, the pivotable support device further includes an end package 23 for covering the ends of the first shaft SF1 and the second shaft SF2.

[0116] refer to ​ In some embodiments, the pivotable support device also includes a retaining ring 22 located on the side of the torque plate 21 away from the cam 13.

[0117] In another aspect, this disclosure also provides a display device including a foldable display panel and a pivotable support device as described herein. ​ This is a schematic diagram showing the structure of a pivotable support device in an unfolded state according to some embodiments of the present disclosure. ​ This is a schematic diagram illustrating the structure of a pivotable support device in a folded state according to some embodiments of the present disclosure. (Reference) ​ and ​ In some embodiments, the display device includes a foldable display panel 24 housed in a pivotable support device. Optionally, the display panel is a liquid crystal display panel. Optionally, the display panel is an organic light-emitting diode display panel. Optionally, the display panel is an electrophoretic display panel. Examples of suitable display devices include, but are not limited to, electronic paper, mobile phones, tablet computers, televisions, monitors, laptop computers, digital photo albums, GPS, etc.

[0118] In another aspect, the present invention provides a method of manufacturing a pivotable support device. In some embodiments, the method includes forming a hinge structure including a first axis and a second axis, the first axis and the second axis respectively providing a first axis of rotation and a second axis of rotation parallel to each other; and forming a joint structure including at least one row of joints, each row of joints including a plurality of joints connected to each other. Optionally, in a folded state of the pivotable support device, the rows of joints are bent around the hinge structure. Optionally, each of the plurality of joints includes an upper portion and a lower portion, the upper portion being located on the side of the lower portion away from the hinge structure. Optionally, the upper portion includes an upper surface, a first upper side surface, and a second upper side surface. Optionally, the contact between a corresponding first upper side surface of a corresponding upper portion of a corresponding first adjacent joint and a corresponding second upper side surface of a corresponding upper portion of a corresponding second adjacent joint defines the limit to which the pivotable support device can be deployed.

[0119] For illustrative and descriptive purposes, the foregoing description of embodiments of the invention has been provided. It is not exhaustive, nor is it intended to limit the invention to the precise forms or exemplary embodiments disclosed. Therefore, the foregoing description should be considered illustrative rather than restrictive. Clearly, many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to explain the principles of the invention and its best mode of practical application, thereby enabling those skilled in the art to understand the various embodiments of the invention and the various modifications suitable for the particular use or implementation contemplated. The scope of the invention is intended to be defined by the appended claims and their equivalents, wherein, unless otherwise stated, all terms are to be interpreted in their broadest reasonable sense. Therefore, the terms “the invention,” “the present invention,” etc., do not necessarily limit the scope of the claims to the specific embodiments, and references to exemplary embodiments of the invention do not imply limitation of the invention, nor should such limitation be inferred. The invention is defined only by the spirit and scope of the appended claims. Furthermore, these claims may involve the use of “first,” “second,” etc., followed by nouns or elements. These terms should be understood as nomenclature and should not be construed as limiting the number of elements modified by these nomenclatures unless a specific number has been given. Any advantages and benefits described may not apply to all embodiments of the invention. It should be understood that changes to the described embodiments can be made by those skilled in the art without departing from the scope of the invention as defined by the appended claims. Furthermore, the elements and components in this disclosure are not intended for public distribution, whether or not they are expressly recited in the appended claims.

Claims

1. A pivotable support device for supporting a foldable display panel, comprising: A hinge structure, the hinge structure including a first axis and a second axis, the first axis and the second axis respectively providing a first rotation axis and a second rotation axis parallel to each other; and A connector structure, the connector structure comprising at least one row of connectors, each row of connectors comprising a plurality of connectors connected to each other; In the folded state of the pivotable support device, the rows of joints bend around the hinge structure; and Each of the plurality of joints includes an upper part and a lower part, wherein the upper part is located on the side of the lower part away from the hinge structure; The upper part includes an upper surface, a first upper side surface, and a second upper side surface; and The corresponding contact between the upper first upper surface of each of the plurality of joints and the upper second upper surface of each of the plurality of joints defines the limit to which the pivotable support device can be deployed. Each connector also includes a pin hole through which a pin extends to pass through a first pin hole of a first adjacent connector and a second pin hole of a second adjacent connector to connect two adjacent connectors in the same row. In the deployed state of the pivotable support device, the upper surfaces of the upper portions of the plurality of joints are substantially coplanar; and the corresponding first upper surface of the corresponding upper portion of the corresponding first adjacent joint is in contact with the corresponding second upper surface of the corresponding upper portion of the corresponding second adjacent joint. The lower portion includes a lower surface, a first lower side surface, and a second lower side surface; and the corresponding contact between the first lower side surface of the lower portion of each of the first adjacent joints and the second lower side surface of the lower portion of each of the second adjacent joints defines the limit to which the pivotable support device can be folded. In the folded state of the pivotable support device, the upper surface of the upper part of the plurality of joints forms a plurality of portions of a curved surface; and the corresponding first lower surface of the corresponding lower part of the corresponding first adjacent joint contacts the corresponding second lower surface of the corresponding lower part of the corresponding second adjacent joint.

2. The pivotable support device according to claim 1 further includes a first rotating plate and a second rotating plate; in, The first shaft is configured to rotate as the first rotating plate rotates, and the second shaft is configured to rotate as the second rotating plate rotates; as well as In the folded state of the pivotable support device, the first rotating plate and the second rotating plate are cooperatively configured to form a curved surface, and the rows of joints are configured to be at least partially supported by the curved surface.

3. The pivotable support device according to claim 2, wherein, The first rotating plate includes a first body and a first connecting disk protruding from a first side surface of the first body; The second rotating plate includes a second body and a second connecting disc protruding from a second side surface of the second body; The first rotating plate includes a first hole extending through the first connecting plate, and the first shaft extends through the first hole to connect the first rotating plate to the first shaft; as well as The second rotating plate includes a second hole extending through the second connecting disc, and the second shaft extends through the second hole to connect the second rotating plate to the second shaft.

4. The pivotable support device according to claim 3, wherein, The connector structure includes a first row of connectors and a second row of connectors; and In the folded state of the pivotable support device, the first row of joints is at least partially supported by the first connecting disc, and the second row of joints is at least partially supported by the second connecting disc.

5. The pivotable support device according to claim 4, wherein, The lower part includes a lower surface, a first lower side surface, and a second lower side surface; as well as In the folded state of the pivotable support device, the lower surface of the connector in the first row of connectors does not contact the second connecting plate, and the lower surface of the connector in the second row of connectors does not contact the first connecting plate.

6. The pivotable support device according to claim 2 further includes a first support plate and a second support plate; in, The first shaft is configured to rotate with the first support plate and the first rotating plate, and the second shaft is configured to rotate with the second support plate and the second rotating plate; and The two opposite ends of each row connector are respectively attached to the first support plate and the second support plate.

7. The pivotable support device according to claim 6, wherein, The first rotating plate includes a first body and a first connecting disk protruding from a first side surface of the first body; The second rotating plate includes a second body and a second connecting disc protruding from a second side surface of the second body; The first body includes a third side surface connected to the first side surface, the third side surface at least partially supporting the first support plate; and The second body includes a fourth side surface connected to the second side surface, the fourth side surface at least partially supporting the second support plate.

8. The pivotable support device according to claim 6, in, The first rotating plate and the first support plate are configured to move relative to each other when the first rotating plate rotates about the first rotation axis; as well as The second rotating plate and the second support plate are configured to move relative to each other when the second rotating plate rotates about the second rotation axis.

9. The pivotable support device according to claim 8, further comprising a first mounting member and a second mounting member; in, The first rotating plate includes a first groove, the first support plate includes a second groove, and the first mounting member extends through the first groove and at least partially enters the second groove; The second rotating plate includes a third groove, the second support plate includes a fourth groove, and the second mounting member extends through the third groove and at least partially enters the fourth groove; The first slot and the second slot restrict the movement of the first mounting member within the space provided by the first slot and the second slot; as well as The third and fourth slots restrict the movement of the second mounting member within the space provided by the third and fourth slots.

10. The pivotable support device according to claim 9, further comprising a first sliding plate mounted on the first rotating plate and a second sliding plate mounted on the second rotating plate.

11. The pivotable support device according to claim 10, further comprising a first rotating rod and a second rotating rod; The first rotating rod includes a first rod body, a first limiting post, a second limiting post, and a third limiting post, wherein, The side of the second limiting post that protrudes from the body of the first rod is opposite to the side of the first limiting post and the third limiting post that protrude from it; The second rotating rod includes a second rod body, a fourth limiting post, a fifth limiting post, and a sixth limiting post, wherein the side of the fifth limiting post protruding from the second rod body is opposite to the side of the fourth limiting post and the sixth limiting post protruding from their respective sides; The first rotating plate includes a first receiving groove configured to at least receive the first rod body; and The second rotating plate includes a second receiving groove configured to at least accommodate the second rod body.

12. The pivotable support device according to claim 11, wherein, The first rotating plate further includes a first recess in the region of the first receiving groove, the first recess being configured to receive the first limiting post, the first limiting post extending at least partially into the first recess, thereby connecting the first limiting post to the first rotating plate. as well as The second rotating plate further includes a second recess in the region of the second receiving groove, the second recess being configured to receive the fourth limiting post, the fourth limiting post extending at least partially into the second recess, thereby connecting the fourth limiting post to the second rotating plate.

13. The pivotable support device according to claim 11, wherein, The first support plate includes a first post hole configured to receive the second limiting post, the second limiting post extending at least partially into the first post hole, thereby connecting the second limiting post to the first support plate; as well as The second support plate includes a second post hole configured to receive the fifth limiting post, the fifth limiting post extending at least partially into the second post hole, thereby connecting the fifth limiting post to the second support plate.

14. The pivotable support device according to claim 11, wherein, The first sliding plate includes a third post hole configured to receive the third limiting post; The first rotating plate further includes a first groove in the area of ​​the first receiving groove; The third limiting post extends through the first groove and at least partially enters the third post hole, the first groove being configured to allow the third limiting post to move within the space provided by the first groove; The second sliding plate includes a fourth post hole configured to receive the sixth limiting post; The second rotating plate also includes a second groove in the area of ​​the second receiving groove; as well as The sixth limiting post extends through the second groove and at least partially enters the fourth post hole, the second groove being configured to allow the sixth limiting post to move within the space provided by the second groove.

15. The pivotable support device according to claim 11, wherein, The first sliding plate includes a first sliding groove and a second sliding groove that are opposite to each other; The second sliding plate includes a third sliding groove and a fourth sliding groove that are opposite to each other; The first sliding groove and the second sliding groove are configured to respectively accommodate two portions of the first rotating plate to allow the first rotating plate to move relative to the first sliding plate; as well as The third and fourth sliding grooves are configured to accommodate two portions of the second rotating plate, respectively, to allow the second rotating plate to move relative to the second sliding plate.

16. The pivotable support device of claim 11, further comprising a frame securely attached to the first sliding plate and the second sliding plate.

17. The pivotable support device according to any one of claims 1 to 16, further comprising: First cam rod; Second cam rod; as well as A cam, the cam including a first notch, a second notch, a third notch and a fourth notch; In the unfolded state of the pivotable support device, the first cam rod is configured to engage with the first recess, and the second cam rod is configured to engage with the second recess. as well as In the folded state of the pivotable support device, the first cam rod is configured to engage with the third recess, and the second cam rod is configured to engage with the fourth recess.

18. The pivotable support device of claim 17, further comprising a first cam rod retainer and a second cam rod retainer, the first cam rod retainer comprising a first spring and the second cam rod retainer comprising a second spring; The first spring is configured to apply a force to the first cam rod to maintain contact between the first cam rod and the cam; The second spring is configured to apply a force to the second cam rod to maintain contact between the second cam rod and the cam; The cam includes a first protrusion located between the first recess and the third recess, and a second protrusion located between the second recess and the fourth recess; and During movement between the folded and unfolded states of the pivotable support device, the first cam rod contacts and slides on the surface of the first protrusion, and the second cam rod contacts and slides on the surface of the second protrusion, thereby damping the movement of the pivotable support device.

19. The pivotable support device according to any one of claims 1 to 16, further comprising: An elastic support member, comprising an elastic material layer and a plurality of rigid support rods located on a side of the elastic material layer closer to the first and second axes; and Fasteners located on the side of the first and second shafts away from the plurality of rigid support rods; The elastic support includes a support column configured to engage with the fastener to secure the elastic support.

20. The pivotable support device of claim 19, further comprising a frame located on the side of the elastic material layer away from the plurality of rigid support rods; in, The frame includes a plurality of positioning posts, and the elastic material layer includes a plurality of positioning holes. The plurality of positioning posts are configured to engage the plurality of positioning holes respectively to fix the elastic support relative to the frame.

21. The pivotable support device according to any one of claims 1 to 16, further comprising a first rotating plate, a second rotating plate, and a cover that at least partially covers the first rotating plate and the second rotating plate; in, The cover includes a cover positioning post, and the first rotating plate and the second rotating plate include rotating plate positioning holes. The cover positioning post is configured to engage with the rotating plate positioning holes to secure the cover to the first rotating plate and the second rotating plate.

22. The pivotable support device according to claim 21, further comprising a first cam rod and a second cam rod; in, The cover includes a cover positioning hole configured to engage with the first cam rod and the second cam rod.

23. The pivotable support device of claim 21, further comprising a flexible membrane attached to the cover.

24. The pivotable support device according to any one of claims 1 to 16, further comprising a synchronizing gear configured to synchronize the rotation of the first shaft and the second shaft.

25. The pivotable support device according to any one of claims 1 to 16, further comprising a triangular plate; in, The triangular plate includes a first plate hole, a second plate hole, and a third plate hole; The first shaft extends through the first plate hole; The second shaft extends through the second plate hole; as well as The pin connecting two adjacent connectors of the plurality of connectors extends through the third plate hole.

26. The pivotable support device according to any one of claims 1 to 16, further comprising a torque plate configured to overfit the first shaft and the second shaft, thereby damping rotation of the pivotable support device.

27. A display device comprising a foldable display panel and a pivotable support device according to any one of claims 1 to 16.

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