A flexible folding display module and its supporting structure

Abstract

The present invention discloses a flexible folding display module support structure, wherein a deformable member is mechanically linked to a folding mechanism through a control member: when the folding mechanism is flattened, the deformable member is first deformed through the control member so that the support plate supports the back side of the bending zone, thereby improving the flatness of the bending zone; when the folding mechanism is bent, the deformable member is second deformed through the control member so that the support plate avoids the back side of the bending zone to avoid interference with the screen body; this solution improves the bending resistance and impact resistance, ensures the flatness and display effect of the flexible folding screen, and improves the crease problem in the bending zone; at the same time, the deformable member is used in a mechanical matching structure linked to the folding mechanism, which has timely response, high reliability, and is not affected by factors such as electromagnetic signals. The present invention also discloses a flexible folding display module using the above-mentioned support structure.

Description

Technical Field

[0001] The present invention relates to the technical field of display devices, and in particular to a flexible folding display module and a supporting structure thereof. Background Art

[0002] With the continuous development of display technology, various displays with different characteristics have emerged to meet different usage needs. The development trend of intelligence, portability and flexibility is one of the main development directions of current electronic devices. The most prominent advantage of flexible display technology over traditional flat-panel display technology is that it breaks through the inherent concept of the original two-dimensional display and expands the application field of display technology to more portable electronic devices. Users can fold or curl electronic devices with flexible display panels as needed to reduce the size of the electronic device and improve the portability of the electronic device.

[0003] The flexible display panels currently used in foldable electronic devices are relatively light and thin, with poor bending and impact resistance. In addition, there is a lack of support for the flexible part of the flexible display panel, which can easily cause irreversible creases during repeated bending and flattening.

[0004] The above characteristics affect the flatness of the flexible display panel and also greatly reduce the display effect of the flexible display panel. It is necessary to provide a display panel and a display device to improve this defect. Summary of the invention

[0005] In view of this, the present invention provides a flexible folding display module support structure, which can support the bending area when the flexible folding screen is flattened, reduce the step difference between the bending area and other parts of the flexible folding screen, thereby improving the flatness of the flexible folding screen and reducing the creases in the bending area.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A flexible folding display module support structure, the flexible folding display module comprises: a flexible folding screen, the flexible folding screen comprises: a first plane area, a second plane area and a bending area connecting the first plane area and the second plane area; characterized in that the flexible folding display module support structure comprises: a first back plate, a second back plate, a support plate and a deformation component;

[0008] The first back plate supports the back side of the first planar area, and the second back plate supports the back side of the second planar area;

[0009] The deformation component includes: a deformation member and a control member; the support plate is located between the back side of the bending zone and the deformation member, and the control member is mechanically connected to the folding mechanism of the flexible folding screen; when the folding mechanism is flattened, the deformation member is caused to undergo a first deformation through the control member, and then the support plate supports the back side of the bending zone; when the folding mechanism is bent, the deformation member is caused to undergo a second deformation through the control member, and then the support plate avoids the back side of the bending zone.

[0010] It can be seen from the above technical solutions that the flexible foldable display module support structure provided by the present invention has a deformable member that is mechanically linked to the folding mechanism through the operating member: when the folding mechanism is flattened, the deformable member is deformed by the operating member so that the support plate supports the back side of the bending area, thereby improving the flatness of the bending area; when the folding mechanism is bent, the deformable member is deformed by the operating member so that the support plate avoids the back side of the bending area, thereby avoiding interference with the screen body;

[0011] This solution improves the bending resistance and impact resistance, ensures the flatness and display effect of the flexible folding screen, and improves the crease problem in the bending area; at the same time, it adopts a mechanical matching structure linked by a deformation component and a folding mechanism, which has timely response, high reliability, and is not affected by factors such as electromagnetic signals.

[0012] Based on the same inventive concept, the present application also provides a flexible folding display module, including the flexible folding display module support structure as described above.

[0013] Since the flexible folding display module of the present solution adopts the above-mentioned supporting structure, it also has corresponding beneficial effects. For details, please refer to the previous description, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic diagram of the overall flattening of the flexible foldable display module support structure provided by an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the overall bending of a flexible foldable display module support structure provided by an embodiment of the present invention;

[0017] Figure 3 A schematic diagram of a flattened state of an eccentric wheel connecting rod cylinder drive provided in an embodiment of the present invention;

[0018] Figure 4A schematic diagram of a bending state of an eccentric wheel connecting rod cylinder driven according to an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of a partially flattened flexible foldable display module support structure provided by an embodiment of the present invention;

[0020] Figure 6 A schematic diagram of partial bending of a flexible foldable display module support structure provided by an embodiment of the present invention;

[0021] Figure 7 A schematic diagram of the cooperation between the eccentric and the connecting rod in the process from flattening to bending provided by an embodiment of the present invention.

[0022] Wherein, 10 is a flexible folding screen, 11 is a first plane area, 12 is a second plane area, and 13 is a bending area;

[0023] 21 is a first back plate, 22 is a second back plate, 23 is a support plate, 24 is an air bag, 25 is a connecting pipe, 261 is a cylinder, 262 is a piston, 27 is a connecting rod, 28 is a control wheel, 281 is a control shaft, and 282 is an input end;

[0024] 231 is a support plate, 232 is a second support plate, 241 is a first airbag, and 242 is a second airbag;

[0025] 31 is the hinge shaft, 32 is air, 33 is the hinge gear, 34 is the main shaft gear, 35 is the glue layer, and 36 is the hinge plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The flexible foldable display module support structure provided in an embodiment of the present invention comprises: a flexible foldable screen 10, wherein the flexible foldable screen 10 comprises: a first plane area 11, a second plane area 12, and a bending area 13 connecting the first plane area 11 and the second plane area 12; the flexible foldable display module support structure comprises: a first back plate 21, a second back plate 22, a support plate 23, and a deformation component;

[0028] The first back plate 21 supports the back side of the first plane area 11, and the second back plate 22 supports the back side of the second plane area 12; it can be understood that the back side refers to the non-display side of the screen body;

[0029] The deformation component includes: a deformation member and a control member; the support plate 23 is located between the back side of the bending area 13 and the deformation member, and the control member is mechanically connected to the folding mechanism of the flexible folding screen 10; it can be understood that the folding mechanism refers to a component in the flexible folding screen 10 for realizing folding;

[0030] like Figure 1 As shown, when the folding mechanism is flattened, the deformable member is deformed by the operating member, so that the support plate 23 supports the back side of the bending area 13; Figure 2 As shown, when the folding mechanism is bent, the operating member causes the deformable member to undergo a second deformation, so that the support plate 23 avoids the back side of the bending area 13 .

[0031] It can be seen from the above technical solutions that the flexible foldable display module support structure provided by the embodiment of the present invention has a deformable member that is mechanically linked to the folding mechanism through the operating member: when the folding mechanism is flattened, the deformable member is deformed in the first way through the operating member so that the support plate 23 supports the back side of the bending area 13 to improve the flatness of the bending area; when the folding mechanism is bent, the deformable member is deformed in the second way through the operating member so that the support plate 23 avoids the back side of the bending area 13 to avoid interference with the screen body;

[0032] This solution improves the bending resistance and impact resistance, ensures the flatness and display effect of the flexible folding screen, and improves the crease problem in the bending area; at the same time, it adopts a mechanical matching structure linked by a deformation component and a folding mechanism, which has timely response, high reliability, and is not affected by factors such as electromagnetic signals.

[0033] Specifically, the folding mechanism includes: a hinge shaft 31, the structure of which can refer to Figure 3 and Figure 5 As shown, the hinge gear 33 is meshed with the main shaft gear 34;

[0034] The operating member includes: a trigger member and an application member; the trigger member is mechanically linked with the hinge shaft 31, the hinge shaft 31 rotates to drive the trigger member to act on the input end of the application member, and the output end of the application member causes the deformable member to undergo a first deformation or a second deformation. With the cooperation of the trigger member and the hinge shaft 31, the rotational action of the folding mechanism is used as its mechanical linkage mode, and the deformable member undergoes a corresponding phase change through the application member, so as to facilitate the synchronous linkage of the folding action (flattening or bending) and the deformation action (support or avoidance). Of course, the operating member can also be connected to other rotating parts of the folding mechanism, or mechanically linked with the trigger member through other actions of the folding mechanism other than rotation, such as translation, etc., which will not be repeated here.

[0035] Furthermore, the triggering member includes: a connecting rod 27 and a control wheel 28;

[0036] The control wheel 28 is coaxially fixed to the hinge shaft 31, the control wheel 28 is eccentrically provided with a control shaft 281, the first end of the connecting rod 28 is hinged to the control shaft 281, and the second end of the connecting rod 26 is hinged to the input end 282 of the application member. Figure 5 and Figure 6 As shown, the rotation of the hinge shaft 31 is applied to the application member through the connecting rod 27 in the form of an eccentric wheel, and the structure is simple. Of course, the trigger member of this scheme is not limited to this, and other forms can also be adopted, such as a transmission mechanism such as a multi-link, a crank or a crankshaft, to realize the conversion of the rotation of the hinge shaft 31 into an input end acting on the application member, which will not be described in detail here.

[0037] Preferably, when the folding mechanism is flattened, the control shaft 281 is located between the flexible folding screen 10 and the hinge shaft 31. Figure 3 As shown, that is, it is located on the upper side of the hinge shaft 31 (only refers to the direction in the figure); or, the control shaft 281 is located on the side of the hinge shaft 31 away from the flexible folding screen 10 (not shown in the figure), that is, it is located on the lower side of the hinge shaft 31 (relative to the Figure 3 middle direction);

[0038] When the folding mechanism is bent, the control shaft 281 is located on the side of the hinge shaft 31 away from the application member. Figure 4 As shown, compared with locating the control shaft 281 on the side of the hinge shaft 31 close to the application member, this solution can reduce the size of the trigger member (up and down directions in the figure) and can also increase the inflation and deflation speed of the airbag, as described in the next paragraph for details.

[0039] like Figure 7 As shown, the hinge point of the eccentric wheel (i.e., the control wheel 28) and the connecting rod 27 (i.e., the control shaft 281) goes from point A, through point B, to point C, showing the process of the screen body from flattening to bending. The following is a detailed explanation of this process;

[0040] Assume that the bending and flattening of the screen is a uniform process;

[0041] The hinge point between the eccentric wheel and the connecting rod is at point A. At this time, the screen is in a flattened state and the airbag is in an inflated state.

[0042] When the hinge point starts to rotate from point A to point B, if the speed is decomposed into Vx and Vy in the X and Y directions, it can be seen from the diagram that the speed Vx in the X direction is larger, while the speed Vy in the Y direction is smaller. At this time, the horizontal moving speed Va of the other end of the connecting rod and the hinge position of the piston is at a higher speed, and the airbag is in a fast deflation state;

[0043] When the hinge point is at point B, the speed Vx in the X direction gradually decreases, and the speed Vy in the Y direction increases. At this time, the horizontal moving speed Va of the hinge position of the other end of the connecting rod and the piston decreases, and the airbag deflation speed slows down;

[0044] When the hinge point is at point C, the speed Vx in the X direction is the smallest, and the speed Vy in the Y direction is the largest. At this time, the horizontal moving speed Va of the other end of the connecting rod and the hinge position of the piston is the smallest, and the airbag ends deflation at this time;

[0045] It can be seen that when the screen is flattened and then bent, the airbag is in a state of rapid deflation and then slow deflation. This design is conducive to rapid deflation of the airbag at the beginning of the screen bending, and the support plate sinks quickly to avoid the airbag hitting the screen during bending, causing damage to the screen.

[0046] The eccentric wheel and the connecting rod hinge point move in opposite directions, from point C, through point B, to point A, showing the process of the screen from bending to flattening. Similarly, the airbag is inflated from slow to accelerated inflation at this time, avoiding the airbag from inflating too quickly at the beginning of the screen flattening, and the support plate rising up too early to hit the screen, causing damage to the screen.

[0047] In this embodiment, the application member includes: a cylinder and a connecting pipe 25; the deformation member is an air bag 24, and the first deformation is the inflation volume expansion (such as Figure 3 and Figure 6 The second deformation is deflation volume contraction (as shown in Figure 4 and Figure 5 As shown in the figures, the connecting pipe 25 passes through the support plate 23 and is fixed;

[0048] Among them, the cylinder includes: a cylinder body 261 and a piston 262; the second end of the connecting rod 27 is hinged to the piston 262, the first end of the connecting tube 25 is connected to the cylinder body 261, and the second end of the connecting tube 25 is connected to the airbag 24. In this way, the airbag 24 is used as a deformable member, and the airbag 24 is inflated and deflated to achieve the support plate 23 to support or avoid the back side of the bending area 13, and the matching effect is good; the application member is a cylinder, which can achieve rapid inflation and deflation of the airbag 24 to ensure the linkage response speed, and the linear reciprocating motion characteristics of the piston 262 are very consistent with the aforementioned eccentric wheel connecting rod structure. Of course, the application member can also be in other forms, such as a trigger member using a sensor to control the motor of the application member according to the action of the hinge shaft 31; the deformation member can also use other soft components, or hard components to support and avoid the support plate 23 through a matching relationship, which will not be repeated here.

[0049] Furthermore, the axis of the cylinder 261 is perpendicular to the axis of the hinge shaft 31. Figure 3 and Figure 4 As shown, the eccentric action stroke of the connecting rod 27 can be fully converted into the linear reciprocating motion of the piston 262, thereby ensuring the volume of gas charging and discharging.

[0050] Specifically, the cylinder 261 is fixed to the middle frame of the flexible folding display module so that the piston 262 can move relatively therein, and can be screwed or the like. Figure 3 and Figure 4 As shown, 35 is a glue layer and 36 is a hinge plate.

[0051] Preferably, the support plate 23 includes: a first support plate 231 and a second support plate 232, and the structure thereof can be referred to Figure 1 and Figure 2 As shown;

[0052] The deformable member includes: a first airbag 241 and a second airbag 242;

[0053] Among them, the first support plate 231 is located between the part of the bending area 13 close to the first plane area 11 and the first airbag 241, and the second support plate 232 is located between the part of the bending area 13 close to the second plane area 12 and the second airbag 242. That is, this solution adopts a split support plate and airbag design, which respectively supports the two sides of the bending area 13 when inflated, and the gap between the support plates and airbags on both sides facilitates avoiding the bending area 13 of the screen body when deflated. Of course, the support plate and the airbag can be divided into more parts, or the support plate 23 is an integrated structure, using a material with a certain strength and deformable, such as part of metal, and the airbag 24 can also be set in the center, which will not be explained in detail here.

[0054] Further, such as Figure 1 and Figure 2 As shown, the first back plate 21 extends into a position opposite to the bending area 13 to form a first receiving groove, the first support plate 231 and the first airbag 241 are located in the first receiving groove, and one side of the first airbag 241 is fixedly connected to the first support plate 231, and the other side of the first airbag 241 is fixedly connected to the first receiving groove, so as to support the preset position when inflated, and avoid the middle of the bending area 13 when deflated, so as to ensure that the support plate maintains a good supporting effect on the flattened screen body;

[0055] Similarly, the second back panel 22 extends into a position relative to the bending area 13 to form a second receiving groove, and the second support plate 232 and the second airbag 242 are located in the second receiving groove, and one side of the second airbag 242 is fixed to the second support plate 232, and the other side of the second airbag 242 is fixed to the second receiving groove. Please refer to the previous description for its beneficial effects.

[0056] To ensure that the support plate 23 maintains a good supporting effect on the flattened screen body, when the folding mechanism is flattened, the distance between the first support plate 231 and the second support plate 232 is less than 2 mm.

[0057] The embodiment of the present invention also provides a flexible folding display module, including the flexible folding display module support structure as described above, which can be specifically applied to mobile terminals, such as mobile phones. Since the flexible folding display module of this solution adopts the above-mentioned support structure, it also has corresponding beneficial effects, which can be specifically referred to the previous description and will not be repeated here.

[0058] The present invention is further described below in conjunction with a complete embodiment:

[0059] like Figure 1 and Figure 2 As shown, two back panels are arranged on the non-display side of the flexible folding screen; the first back panel 21 is arranged in the first plane area 11 and extends into the bend, the first back panel 21 is fixedly connected to the screen body in the plane area of ​​the flexible display screen, and the bending area is not fixed; the second back panel 22 is arranged in the second plane area 12 and extends into the bend, the second back panel 22 is fixedly connected to the screen body in the plane area of ​​the flexible display screen, and the bending area is not fixed; the fixed parts of the first back panel 21 and the second back panel 22 in the plane area of ​​the flexible display screen are flat, and sunken grooves are arranged in the bending area.

[0060] like Figure 3 and Figure 4 As shown, a first airbag 241 and a second airbag 242 are respectively arranged at the positions of the sunken grooves of the first back plate and the second back plate;

[0061] like Figure 5 and Figure 6 As shown, the support plate 23 is fixed on the top of the airbag 24, and the bottom is fixed to the back plate. To ensure that the support plate maintains a good supporting effect on the flattened screen body, the distance between the support plates on both sides of the screen body should be less than 2mm when the screen body is flattened; the support plate is fixed on the top of the airbag, and the support plates on both sides of the flexible folding screen are placed side by side to form a flat supporting surface; the cylinder includes a cylinder body 261 and a piston 262, the piston and the cylinder body are sealed, and the cylinder body is filled with air 32 (or liquid such as silicone oil); one end of the connecting pipe 25 is connected to the airbag 24, and the other end is connected to the cylinder;

[0062] The eccentric wheel (i.e., the control wheel 28) is fixedly connected to the hinge shaft 31 of the whole machine. When the flexible folding screen changes from a bent state to a flat state, the shaft rotates about 90 degrees, and the eccentric wheel will also rotate 90 degrees accordingly. The eccentric wheel here does not need to include a complete circular structure, and only needs to retain the functional part structure, and further includes a connecting rod structure that can realize this function. The eccentric wheel is connected to the piston through a connecting rod 27, one end of the connecting rod is hinged to the piston (freely rotated within the range of motion), and the other end is hinged to the eccentric wheel (freely rotated within the range of motion).

[0063] The position of the hinge point between the connecting rod 27 and the piston should be at the upper or lower side of the rotating shaft (i.e., the hinge rotating shaft 31) perpendicular to the screen body when the screen body is flattened, i.e., the airbag 24 is inflated; when the screen body is bent, i.e., the airbag is deflated, the hinge point is parallel to the screen body and far away from the piston; when the flexible folding screen switches between the bent state and the flat state, the rotating shaft reciprocates about 90 degrees, and the eccentric wheel will also reciprocate accordingly, driving the piston to reciprocate horizontally through the connecting rod;

[0064] When the flexible folding screen changes from a bent state to a flattened state, the eccentric wheel drives the piston 262 as shown in FIG. Figure 3 When the cylinder 261 moves to the left, the air in the cylinder 261 enters the airbag 24 through the connecting pipe 25, and the airbag is inflated to support the bending area 13 of the flexible folding screen and improve the flatness of the bending area;

[0065] When the flexible folding screen changes from a flat state to a bent state, the eccentric wheel drives the piston 262 as shown in FIG. Figure 4 During the downward movement, the air in the airbag 24 enters the cylinder 261 through the connecting pipe 25, and the airbag is deflated and contracts to avoid interference with the screen body.

[0066] In summary, the embodiment of the present invention discloses a flexible folding display module support structure, and its technical principle is: by controlling the expansion and contraction effects occurring during the inflation and deflation of the airbag, the support plate fixed to the airbag is driven to rise when the flexible folding screen is flattened, and sink when the flexible folding screen is bent. The technical effect is: when the flexible folding screen is in a flattened state, the support plate rises as the airbag is inflated, supporting the bending area of ​​the flexible folding screen, thereby reducing the step difference between the bending area and other parts of the flexible folding screen, thereby improving the flatness of the flexible folding screen and reducing the creases in the bending area. When the flexible folding screen is in a bent state, as the airbag is deflated, the support plate sinks away from the bending area of ​​the flexible folding screen, thereby making room for accommodating the flexible display panel and preventing the flexible display panel from being squeezed during the bending process. The embodiment of the present invention also discloses a flexible folding display module using the above-mentioned support structure.

[0067] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0068] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible folding display module support structure, the flexible folding display module comprising: A flexible folding screen (10), the flexible folding screen (10) comprising: a first plane area (11), a second plane area (12) and a bending area (13) connecting the first plane area (11) and the second plane area (12); characterized in that the flexible folding display module support structure comprises: a first back plate (21), a second back plate (22), a support plate (23) and a deformation component; The first back plate (21) supports the back side of the first plane area (11), and the second back plate (22) supports the back side of the second plane area (12); The deformable component comprises: a deformable member and a control member; the support plate (23) is located between the back side of the bending area (13) and the deformable member, and the control member is mechanically connected to the folding mechanism of the flexible folding screen (10); when the folding mechanism is flattened, the deformable member is caused to undergo a first deformation through the control member, so that the support plate (23) supports the back side of the bending area (13); when the folding mechanism is bent, the deformable member is caused to undergo a second deformation through the control member, so that the support plate (23) avoids the back side of the bending area (13); The support plate (23) comprises: a first support plate (231) and a second support plate (232); the deformable member comprises: a first airbag (241) and a second airbag (242); the first support plate (231) is located between a portion of the bending zone (13) close to the first plane zone (11) and the first airbag (241), and the second support plate (232) is located between a portion of the bending zone (13) close to the second plane zone (12) and the second airbag (242); The first back plate (21) extends into a position opposite to the bending area (13) to form a first receiving groove, the first support plate (231) and the first airbag (241) are located in the first receiving groove, and one side of the first airbag (241) is fixedly connected to the first support plate (231), and the other side of the first airbag (241) is fixedly connected to the first receiving groove; The second back plate (22) extends into a position opposite to the bending area (13) to form a second receiving groove, the second support plate (232) and the second airbag (242) are located in the second receiving groove, and one side of the second airbag (242) is fixedly connected to the second support plate (232), and the other side of the second airbag (242) is fixedly connected to the second receiving groove.

2. The flexible foldable display module support structure according to claim 1, characterized in that: The folding mechanism comprises: a hinge shaft (31); The control member comprises: a trigger member and an application member; the trigger member is mechanically linked with the hinge shaft (31); the hinge shaft (31) rotates to drive the trigger member to act on the input end of the application member; and the output end of the application member causes the deformable member to undergo the first deformation or the second deformation.

3. The flexible foldable display module support structure according to claim 2, characterized in that: The triggering member comprises: a connecting rod (27) and a control wheel (28); The control wheel (28) is coaxially fixed to the hinge shaft (31), the control wheel (28) is eccentrically provided with a control shaft (281), the first end of the connecting rod (27) is hinged to the control shaft (281), and the second end of the connecting rod (27) is hinged to the input end (282) of the application member.

4. The flexible foldable display module support structure according to claim 3, characterized in that: When the folding mechanism is flattened, the control shaft (281) is located between the flexible folding screen (10) and the hinge shaft (31), or the control shaft (281) is located on a side of the hinge shaft (31) away from the flexible folding screen (10); When the folding mechanism is bent, the control axis (281) is located on a side of the hinge shaft (31) away from the application member.

5. The flexible foldable display module support structure according to claim 3, characterized in that: The applying member comprises: a cylinder and a connecting pipe (25); the deformable member is an air bag (24); the first deformation is an expansion of the volume when inflated, and the second deformation is a contraction of the volume when deflated; The cylinder comprises: a cylinder body (261) and a piston (262); the second end of the connecting rod (27) is hinged to the piston (262), the first end of the connecting tube (25) is connected to the cylinder body (261), and the second end of the connecting tube (25) is connected to the airbag (24).

6. The flexible foldable display module support structure according to claim 5, characterized in that: The axis of the cylinder (261) is perpendicular to the axis of the hinge shaft (31).

7. The flexible foldable display module support structure according to claim 5, characterized in that: The cylinder body (261) is fixed to the middle frame of the flexible folding display module.

8. The flexible foldable display module support structure according to claim 1, characterized in that: When the folding mechanism is flattened, the distance between the first support plate (231) and the second support plate (232) is less than 2 mm.

9. A flexible foldable display module, characterized in that: It comprises a flexible folding display module supporting structure as described in any one of claims 1 to 8.

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