CN211693203U - Hinge structure of folding display device with extremely high screen occupation ratio and folding display device - Google Patents

Abstract

The utility model discloses a hinge structure and folding display device of high screen occupation ratio, belong to the technical field of flexible display device, including the hinge pin, still include the panel frame of symmetry locating the hinge pin both sides portion, the panel frame assembles on the hinge pin through folding assembly and drives two the panel frame and makes the motion of opening and shutting relative to the hinge pin through folding assembly, each panel frame is equipped with the slip subassembly towards the side of hinge pin both ends; the flexible plate is connected with each panel frame through a sliding assembly and does linkage motion under the opening and closing motion of the panel frames, so that the purpose of extremely high screen occupation ratio is finally achieved by optimizing a hinge structure and improving the available space of the screen.

Description

Hinge structure of folding display device with extremely high screen occupation ratio and folding display device

Technical Field

The utility model belongs to the technical field of flexible display device, particularly, relate to a high screen accounts for than folding display device's hinge structure and folding display device.

Background

The flexible display device has the advantages of impact resistance, light weight, convenience in carrying and the like, and has the advantages of functions which cannot be realized by a traditional display and user experience, so that the flexible display technology is more and more valued by people, and the protective cover body is an indispensable part in the flexible display device.

In the era of rapid development of smart phones, in order to meet the demands of the smart phone market at present, products with a high screen ratio are successively introduced, and the folding mobile phone screen ratio in the current market is about 86%, for example: the screen duty ratio of Samsung Galxy Fold is 85.79%, while the screen duty ratio of Huaweil Mate X is 86.86%.

In the prior art, in order to realize product differentiation, smart phone manufacturers realize differentiation by improving the design of screen occupation ratio, but the improvement of the screen occupation ratio is limited due to the space occupied by the hinge part and the combination part.

In view of the above problems, it is urgently needed to optimize the hinge structure of the existing folding mobile phone to meet the requirement of a folding mobile phone with a very high screen occupation ratio, and further realize the differentiation of products.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing a high screen accounts for than folding display device's hinge structure and folding display device in order to reach through optimizing hinge structure and improving the usable space of screen, finally realizes the high screen and accounts for than the purpose.

The utility model discloses the technical scheme who adopts does: a hinge structure of a folding display device with a high screen occupation ratio comprises a hinge shaft and panel frames symmetrically arranged at two side parts of the hinge shaft, wherein the panel frames are assembled on the hinge shaft through folding components and drive the two panel frames to perform opening and closing movement relative to the hinge shaft through the folding components; the flexible plate is connected with each panel frame through a sliding assembly and does linkage motion under the opening and closing motion of the panel frames.

Furthermore, the folding assembly comprises a connecting arm and a rotating shaft arranged on the connecting arm, the rotating shaft is rotatably arranged on the hinge shaft, and the connecting arm is connected with the panel frame so as to meet the requirement that the two panel frames can be opened and closed.

Furthermore, a first cam which synchronously rotates with the rotating shaft is arranged on the rotating shaft; still including the second cam that sets up in the hinge pin of sliding, the second cam sets and sets the elastic component that drives its contact and mesh first cam to when the linking arm is rotating, under the cooperation of elastic component and cam structure, the realization can be stopped at arbitrary opening and shutting angle, in order to satisfy user's diversified demand.

Furthermore, a datum line is set on the hinge shaft along the length direction of the hinge shaft, and the folding assemblies are symmetrically arranged on two sides of the datum line, so that the two panel frames are more harmonious and stable in movement.

Furthermore, two symmetrical first cams of the folding assembly are provided with gears, the two gears are in meshing transmission, and under the condition that the gears are in meshing rotation, the panel frames on two sides can be synchronously opened and closed.

Furthermore, the hinge shaft comprises a hinge shell and a hinge cover, a rotating space is formed between the hinge shell and the hinge cover, the folding assembly is installed through the rotating space, and the rotating space is provided with a rotating hole correspondingly matched with the connecting arm, so that on one hand, the folding assembly can be installed quickly, and on the other hand, the function of the folding assembly can be realized.

Further, the cross-section of hinge shell is oblate tubulose and the flexor pass through a plurality of countersunk head bolted connection in on the hinge shell, under the effect of flexor, can realize that the panel frame of both sides carries out good transition in articulated department, and oblate tubulose is favorable to avoiding flexible screen assembly crease or damage to appear in articulated department.

Further, the slip subassembly is including locating slide rail on the panel frame side, with the first slider of this slide rail assorted, the side of flexonics board is adorned on this first slider to the realization can move the side of flexonics board and flexible screen assembly towards outside, and then reduces the interval between flexible screen assembly and the articulated shaft tip.

Furthermore, a reset mechanism for driving the flexible board to move and reset is arranged on the panel frame, and real-time acting force is provided for the flexible board under the action of the reset mechanism; the reset mechanism comprises a second sliding block arranged on the panel frame in a sliding mode, the second sliding block is connected with the flexible plate, and the second sliding block is connected with a reset spring for driving the second sliding block to reset.

The utility model also discloses a folding display device, which comprises the hinge structure of the folding display device with the extremely high screen occupation ratio and a support plate, wherein the support plate is fixedly connected on the panel frame, and the flexible plate is flush with the plane where the support plate is located; the end of the supporting plate is provided with a notch matched with the hinge shaft, the flexible screen assembly is further included, and a bearing surface of the flexible screen assembly is formed by the supporting plate and the flexible plate.

The utility model has the advantages that:

1. adopt the utility model discloses a high screen accounts for than folding display device's hinge structure and folding display device, it realizes through folding assembly that the panel frame does the motion that opens and shuts for the hinge pin, and simultaneously, the side of flexonics board is passed through sliding assembly and is connected with the panel frame to the linkage flexonics board motion when the panel frame does the motion that opens and shuts, can realize arranging folding assembly to the fuselage inboard, with the interval between furthest reduction flexible screen assembly and the hinge shaft tip, and then realize folding display device's high screen accounts for than.

Drawings

Fig. 1 is a schematic view of an overall structure of a hinge structure of a very high screen ratio foldable display device provided by the present invention;

FIG. 2 is an enlarged partial schematic view of FIG. 1;

fig. 3 is a schematic partial structural view of the hinge structure of the super high screen ratio foldable display device provided by the present invention when unfolded;

fig. 4 is a schematic structural diagram of a folding assembly in a hinge structure of a very high screen ratio folding display device provided by the present invention;

fig. 5 is a schematic structural diagram of a flexible board in a hinge structure of a super high screen ratio foldable display device provided by the present invention;

fig. 6 is a schematic view of an assembly structure of a folding assembly in a hinge structure of a very high screen ratio foldable display device provided by the present invention;

fig. 7 is a schematic structural diagram of a hinge shaft in a hinge structure of a high-screen-ratio foldable display device provided by the present invention;

FIG. 8 is a schematic view of a portion of the structure of FIG. 6;

fig. 9 is a schematic view of an installation structure of a flexible board in a hinge structure of a super high screen ratio foldable display device provided by the present invention;

fig. 10 is a partial structural schematic view of the hinge structure of the super high screen ratio foldable display device provided by the present invention in embodiment 2;

fig. 11 is a schematic structural diagram of a hinge structure of an ultra high screen ratio foldable display device according to the present invention, in which the hinge structure is a folding assembly in embodiment 2;

fig. 12 is a schematic structural diagram of a first cam in embodiment 2 of a hinge structure of an ultra high screen ratio foldable display device according to the present invention;

fig. 13 is a schematic view of the overall structure of the foldable display device provided by the present invention in a folded state;

FIG. 14 is a schematic partial structure view of FIG. 10;

fig. 15 is a schematic structural diagram of a support plate in the foldable display device provided by the present invention;

fig. 16 is a schematic view of the overall structure of the foldable display device provided by the present invention in the unfolded state;

the drawings are labeled as follows:

1-hinge axis, 2-flexible plate, 3-panel frame, 4-reset mechanism, 5-folding component, 6-sliding component, 7-first slide block, 8-slide rail, 9-connecting arm, 10-second slide block, 11-rotating axis, 12-shaft sleeve, 13-bending part, 14-hinge cover, 15-hinge shell, 16-supporting plate, 17-fixing seat, 18-tension spring, 19-sliding chute and 20-flexible screen assembly; 21-shaft sleeve, 22-first cam, 23-second cam, 24-spring, 25-baffle, 26-second convex tooth and 27-first convex tooth.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the indication of the position or the positional relationship is based on the position or the positional relationship shown in the drawings, or the position or the positional relationship that the utility model is usually placed when using, or the position or the positional relationship that the skilled person conventionally understands, or the position or the positional relationship that the utility model is usually placed when using, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or suggest that the indicated device or element must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as limiting the present invention. Furthermore, the terms "first" and "second" are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases for a person of ordinary skill in the art; the drawings in the embodiments are provided to clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Example 1

As shown in fig. 1, the present embodiment specifically provides a hinge structure of a foldable display device with a very high screen occupation ratio, and compared with a conventional hinge structure, the hinge structure optimizes space utilization during opening and closing processes, and can reduce a distance between a flexible screen assembly and an end of a hinge shaft 1 to the maximum extent, thereby realizing the very high screen occupation ratio of the foldable display device and differentiation of products. It includes the hinge axle 1, and hinge axle 1 is as the rotation benchmark of whole hinge structure, and in this embodiment, this hinge axle 1's cross-section is flat circular tube form, can also adopt other shapes, for example: a circular column, a rectangular column, etc., without limitation. Preferably, the hinge shaft 1 comprises a hinge shell 15 and a hinge cover 14, and a rotation space is formed between the hinge shell 15 and the hinge cover 14, wherein the rotation space is used for realizing the installation of the folding assembly 5 and meeting the movement requirement of the folding assembly 5.

The foldable frame is characterized by further comprising panel frames 3 symmetrically arranged at two side parts of the hinge shaft 1, wherein the panel frames 3 are assembled on the hinge shaft 1 through folding assemblies 5, and the folding assemblies 5 drive the two panel frames 3 to move in an opening and closing mode relative to the hinge shaft 1. The movement of the panel frames 3 is limited through the folding assembly 5, and when the panel frames 3 are in a fully opened state, the two panel frames 3 are in a horizontal state; when the panel frames 3 are in the completely folded state, the two panel frames are in the parallel folded state.

As shown in fig. 1 and 6, in order to realize that the two panel frames 3 can stably run during the opening and closing movement, the folding assemblies 5 are symmetrically arranged on the hinge shaft 1; preferably, four folding assemblies 5 are provided in total, two folding assemblies 5 are connected to each panel frame 3, and the folding assemblies 5 on the two panel frames 3 are arranged symmetrically with each other.

For normal operation of the folding assembly 5, as shown in fig. 4, the following design is adopted: folding assembly 5 includes linking arm 9 and locates the axis of rotation 11 on this linking arm 9 hinge shell 15 seted up with linking arm 9 assorted rotates the hole, because the one end of linking arm 9 with panel frame 3 fixed connection, when panel frame 3 did the motion that opens and shuts, linking arm 9 can do the free rotation in rotating the hole, simultaneously, as shown in fig. 8, be equipped with at the other end of linking arm 9 axis of rotation 11, the outside movable sleeve of this axis of rotation 11 is equipped with rather than assorted axle sleeve 12, assembles axle sleeve 12 in foretell rotation space. In order to prevent the axial displacement generated during the rotation of the rotating shaft 11, a baffle can be sleeved at the end of the rotating shaft 11, and the baffle is movably assembled in the rotating space. The above is the preferred folding assembly 5 in this embodiment, and of course, other structures of the folding assembly 5 may also be adopted, for example, the connecting arm 9 is directly connected to the hinge shaft through a bearing and performs rotation limitation, and the form and structure of the folding assembly 5 are various, and are not described in detail herein.

As shown in fig. 9, the screen assembly further includes a flexible plate 2 mounted on the hinge shaft 1, and the flexible plate 2 is connected to the hinge shaft 1 by a plurality of countersunk head bolts, so as to prevent the countersunk head bolts from interfering with a flexible screen assembly carried on the flexible plate 2.

As shown in fig. 1, the side edge of each panel frame 3 facing the two end portions of the hinge shaft 1 is provided with a sliding assembly 6, that is, the folding assembly 5 on the panel frame 3 is arranged between the two sliding assemblies 6 assembled on the panel frame 3, the flexible plate 2 is connected with each panel frame 3 through the sliding assemblies 6, and the flexible plate 2 performs linkage motion under the opening and closing motion of the panel frame 3, so that when the two panel frames 3 are completely opened and switched to be completely closed, or in the process of being completely closed and switched to be completely opened, the flexible plate 2 can also be unfolded into a planar state or bent into a U-shaped state under the action of the sliding assemblies 6, so as to meet the use requirement of the hinge structure.

As shown in fig. 2 and 3, the sliding assembly 6 includes a sliding rail 8 disposed on the side edge of the panel frame 3, and a first sliding block 7 matched with the sliding rail 8, a sliding groove 19 is formed in the side wall of the first sliding block 7, and is assembled on the sliding rail 8 through the sliding groove 19, the side edge of the flexible board 2 is installed on the first sliding block 7, and since the flexible board 2 plays a role of supporting the flexible screen assembly in the hinge structure, the flexible board 2 and the first sliding block 7 are connected by bonding. In an embodiment, as shown in fig. 5, in order to further improve the motion stability of the hinge structure, a bending portion 13 is adopted at a side edge of the flexible board 2, and the bending portion 13 is connected and fixed with the first slider 7, so that after the bending portion 13 is connected with the first slider 7, compared with the direct connection on the first slider 7, the connection stability between the first slider 7 and the bending portion 13 can be improved, and the looseness is not easily generated. By adopting the structure, the flexible board 2 is connected with the first sliding block 7, and the first sliding block 7 is arranged on the side edge of the panel frame 3 in a sliding manner, so that the side edge of the flexible board 2 can move outwards to the maximum extent (namely towards one side of the end part of the hinge shaft 1), and the width size of the frame of the folding display equipment can be reduced to the maximum extent under the condition that the requirement on structural strength is met after the flexible screen assembly is borne on the flexible board 2; meanwhile, according to the design of the flexible board 2, the side edge of the flexible board 2 is flush with the side edge of the first slider 7, so that the width of the frame of the foldable display device is reduced to the maximum extent.

In this embodiment, the sliding assembly 6 is preferably designed in the above manner, and in the practical application process, the first sliding block 7 may also be slidably disposed on the panel frame 3 in other manners, for example, directly adopt a sliding hole and a sliding manner, and the details are not repeated here.

As shown in fig. 11, in the process of opening and closing the hinge structure, it is necessary to ensure that the flexible board 2 can be smoothly unfolded or bent, the panel frame 3 is provided with a reset mechanism 4 for driving the flexible board 2 to move and reset, the reset mechanism 4 includes a second slider 10 slidably disposed on the panel frame 3, the panel frame 3 is provided with a slide hole matched with the second slider 10, the second slider 10 is connected with the flexible board 2, and the second slider 10 is connected with a reset spring for driving the second slider to reset, and the reset spring is set as a tension spring 18, and the other end of the tension spring 18 is connected to the panel frame 3 through a fixing seat 17. In the present embodiment, two second sliders 10 are provided, and the two second sliders 10 are symmetrically disposed with respect to the middle of the hinge shaft 1, and two tension springs 18 are connected to each second slider 10. In the process of opening and closing the two panel frames 3, under the action of the tension spring 18, the second slider 10 makes the flexible plate 2 always in a stressed state, and the first slider 7 makes the flexible plate 2 and the panel frames 3 move relatively, so that the flexible plate 2 is always attached to the surfaces of the two panel frames 3 and the hinge shaft 1, and a good support is provided for the flexible screen assembly.

Example 2

On the basis of embodiment 1, in order to further improve the differentiation and competitiveness of products to realize that the folding and unfolding can be stopped at certain specific angles in the folding process so as to meet the diversified requirements of users, as shown in fig. 10, 11 and 12, the specific design is as follows:

a first cam 22 which synchronously rotates with the rotating shaft is arranged on the rotating shaft, the first cam 22 is sleeved on the rotating shaft, and a rotation limiting structure is arranged between the first cam 22 and the rotating shaft so as to ensure that the first cam 22 and the rotating shaft synchronously move; the hinge mechanism further comprises a second cam 23 arranged on the hinge shaft in a sliding mode, the second cam 23 slides along the axial direction of the rotating shaft, the rotating shaft can rotate relative to the second cam 23, an elastic piece for driving the second cam 23 to contact and engage with the first cam 22 is arranged on the second cam 23, and under the action of the elastic piece, a second convex tooth 26 on the second cam 23 and a first convex tooth 27 on the first cam 22 are guaranteed to be in a mutually engaged state all the time.

In order to provide sufficient force to the second cam 23 and ensure reasonable application of the space inside the hinge shaft, the elastic member is a spring 24 sleeved on the rotating shaft, the end of the spring 24 abuts against the second cam 23, and a baffle 25 is assembled at the end of the rotating shaft, and the baffle 25 abuts against the spring 24.

As shown in fig. 10 and 11, the operation principle of the above-mentioned opening and closing at any angle is as follows:

in this embodiment, two symmetrical first convex teeth 27 are provided on the first cam 22, and two symmetrical second convex teeth 26 are also provided on the second cam 23, when the first cam 22 rotates relative to the second cam 23, the second cam 23 is pressed to retreat, and with the continuous rotation of the first cam 22, the second convex teeth 26 on the second cam 23 and the first convex teeth 27 on the first cam 22 are switched to another meshing state, the second cam 23 is reset under the action of the elastic member, at this time, the connecting arm rotates to another angular position relative to the initial position and is kept at the current position, so that the connecting arm of the two symmetrical folding assemblies can be opened and closed at the 0 ° and 90 ° positions and stopped; in a similar way, the convex teeth with different numbers are designed on the first cam 22 and the second cam 23 and are arranged according to different angles, so that the opening and closing stop can be realized at more opening and closing angle positions, and the diversified requirements of users can be met.

In order to ensure that the connecting arms rotate stably and reasonably utilize the internal space of the hinge shaft, the folding mechanism further comprises a shaft sleeve 21 arranged in the hinge shaft, and the shaft sleeve 21 is sleeved on the two connecting arms in each folding assembly pair so as to ensure that the connecting arms rotate more stably.

In order to realize that the folding display device applying the hinge structure can be symmetrically opened and closed, gears are arranged on the first cams 22 of the folding assemblies which are aligned and symmetrical, and the two gears are in meshing transmission. In the present embodiment, the gear is integrally formed with the first cam 22, that is, the first cam 22 is provided with a first convex tooth 27 at an end thereof and the first cam 22 is provided with a meshing tooth on a side wall thereof.

In order to realize the reasonable application of the internal space of the hinge shaft, the second cam 23 is sleeved on the rotation shafts of the two symmetrical folding assemblies, and the second cam 23 is provided with second convex teeth 26 corresponding to the two first cams 22, in this embodiment, the second cam 23 is also formed by integral processing, and the end of the second cam 23 is provided with the second convex teeth 26.

Example 3

As shown in fig. 13 and fig. 14, on the basis of embodiment 1 or embodiment 2, the present embodiment further discloses a foldable display device to realize an extremely high screen ratio of the foldable display device, which is specifically designed as follows:

the folding display device comprises the hinge structure of the high-screen-occupation-ratio folding display device, and further comprises a supporting plate 16 and a flexible screen assembly 20, wherein the two panel frames 3 are respectively connected with the supporting plate 16, the plane where the flexible plate 2 is located is flush with the plane where the supporting plate 16 is located, the supporting plate 16 is provided with an installation groove, the panel frames are connected in the installation groove through bolts, and the installation groove is also internally provided with a sliding groove 19 matched with the first sliding block 7 on the two sides of the panel groove; the end of the supporting plate 16 is provided with a notch matched with the hinge shaft 1, the cross section of the notch is arc-shaped, and when the two panel frames 3 are in an opening or closing state, the notch is matched with the side edge of the hinge shaft 1.

As shown in fig. 15 and 16, the panel frame 3 is fixedly mounted in the mounting groove, and the flexible plate 2 is disposed on the other side surface of the panel frame 3, and a surface of the flexible plate 2 is flush with a surface of the supporting plate 16, so as to form a bearing surface of the flexible screen assembly 20 (not shown in the drawings) by the supporting plate 16 and the flexible plate 2, and provide enough supporting force to the flexible screen assembly 20 at the bearing surface to meet the folding function requirement of the folding display device.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (10)

1. A hinge structure of a folding display device with a high screen occupation ratio comprises a hinge shaft and is characterized by further comprising panel frames symmetrically arranged at two side parts of the hinge shaft, wherein the panel frames are assembled on the hinge shaft through folding components and drive the two panel frames to perform opening and closing movement relative to the hinge shaft through the folding components, and sliding components are arranged on the side edges of the panel frames facing to the two end parts of the hinge shaft; the flexible plate is connected with each panel frame through a sliding assembly and does linkage motion under the opening and closing motion of the panel frames.

2. The hinge structure of a super high screen ratio folding display device according to claim 1, wherein the folding assembly includes a link arm and a rotation shaft provided on the link arm, the rotation shaft being rotatably provided on the hinge shaft, the link arm being connected to the panel frame.

3. The hinge structure of a very high screen ratio foldable display device according to claim 2, wherein a first cam that rotates in synchronization with the rotation shaft is provided on the rotation shaft; and the second cam is arranged in the hinge shaft in a sliding mode and is provided with an elastic piece which drives the second cam to contact and engage with the first cam.

4. The hinge structure of an extremely high screen ratio folding display device according to claim 3, wherein a reference line is set on said hinge shaft in a length direction thereof, and said folding members are symmetrically arranged on both sides of the reference line.

5. The hinge structure of very high screen duty ratio foldable display device according to claim 4, wherein the first cams of two symmetrical folding assemblies are provided with gears and the gears are in mesh transmission.

6. The hinge structure of a foldable display device with very high screen ratio according to claim 2, wherein the hinge shaft comprises a hinge housing and a hinge cover, a rotation space is formed between the hinge housing and the hinge cover, the folding assembly is installed through the rotation space, and the rotation space is provided with a rotation hole correspondingly matched with the connecting arm.

7. The hinge structure of an ultra high screen duty folding display device according to claim 6, wherein the cross-section of the hinge housing is in the shape of a flat circular tube and a flexible plate is connected to the hinge housing by a plurality of countersunk head bolts.

8. The hinge structure of claim 1, wherein the sliding assembly comprises a sliding rail disposed on a side of the panel frame, and a first sliding block matching with the sliding rail, and a side of the flexible board is mounted on the first sliding block.

9. The hinge structure of claim 1, wherein a reset mechanism for driving the flexible board to move and reset is disposed on the panel frame, the reset mechanism includes a second slider slidably disposed on the panel frame, the second slider is connected to the flexible board, and the second slider is connected to a reset spring for driving the second slider to reset.

10. A foldable display device, comprising the hinge structure of the super high screen ratio foldable display device as claimed in any one of claims 1 to 9, further comprising a support plate fixedly attached to the panel frame and the flexible plate is flush with the plane of the support plate; the end of the supporting plate is provided with a notch matched with the hinge shaft, the flexible screen assembly is further included, and a bearing surface of the flexible screen assembly is formed by the supporting plate and the flexible plate.

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