Bending device and bending method of display panel

Abstract

The invention provides a bending device and a bending method of a display panel. The bending tension comprises a driving mechanism, at least two steering mechanisms and at least two bending mechanisms, wherein the steering mechanisms are driven by the driving mechanism to drive the bending mechanisms. The bending mechanism comprises a first supporting plate and a second supporting plate, and the first supporting plate is driven by the steering mechanism to reciprocate relative to the second supporting plate. The at least two bending mechanisms comprise at least one first bending mechanism and at least one second bending mechanism. And when the first supporting plate in the first bending mechanism is in an ascending state, the first supporting plate in the second bending mechanism is in a descending state. And when the first supporting plate in the first bending mechanism is in the descending state, the first supporting plate in the second bending mechanism is in the ascending state. The operation trends of the multiple bending mechanisms are arranged in a staggered mode, the gravitational potential energy conversion principle is utilized, the load of the driving mechanism is reduced, and the operation power consumption of the bending device is remarkably reduced.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a bending device and a method for bending a display panel. Background Art

[0002] Due to the self-luminous nature of OLED (Organic Light-Emitting Diode), OLEDs offer a variety of advantages, including short response time, high contrast, wide viewing angle, wide color gamut, thin and lightweight display panels, and bendability. The bendability of display panels, in particular, has revolutionized the concept for consumers. Therefore, bendable OLEDs have gradually become the mainstream of OLED development. As organic light-emitting diode display technology matures, more and more consumers are experiencing the significant difference between OLED displays and traditional liquid crystal displays (LCDs), leading to rapid growth in the OLED display consumer market.

[0003] Flexible display panel test fixtures are important tools for measuring parameters such as the bending angle and number of bends, and are crucial for measuring the bending performance of flexible display panels. However, during their long research and development process, the inventors of this application discovered that current bending test equipment consumes a lot of energy. Summary of the Invention

[0004] An object of the present invention is to provide a bending device and a display panel bending method to solve the problem of high energy consumption of bending test equipment in related display technologies.

[0005] To achieve the above objectives, the present invention provides a bending device, comprising a drive mechanism, at least two steering mechanisms, and at least two bending mechanisms. The steering mechanisms are each connected to the drive mechanism, and the bending mechanisms are each connected to a corresponding steering mechanism. Driven by the drive mechanism, the steering mechanisms drive the bending mechanisms. Each bending mechanism comprises a first support plate and a second support plate. The first support plate is rotatably connected to the second support plate and reciprocates relative to the second support plate under the drive of the steering mechanism. The first support plate has an ascending state and a descending state. When the first support plate is in the ascending state, the first support plate moves from being parallel to the second support plate to being perpendicular to the second support plate. When the first support plate is in the descending state, the first support plate moves from being perpendicular to the second support plate to being parallel to the second support plate. The at least two bending mechanisms include at least one first bending mechanism and at least one second bending mechanism. When the first support plate in the first bending mechanism is in the ascending state, the first support plate in the second bending mechanism is in the descending state. When the first support plate in the first bending mechanism is in the descending state, the first support plate in the second bending mechanism is in the ascending state.

[0006] Furthermore, the steering mechanism includes a first transmission portion, a second transmission portion, a linkage assembly, and a reversing assembly. The first transmission portion is connected to the drive mechanism, which is configured to drive the first transmission portion for rotation. The second transmission portion is connected to the bending mechanism, which is configured to drive the first support plate for rotation. The linkage assembly connects the first and second transmission portions and includes a first connector and a second connector. Both the first connector and the second connector are connected to the first transmission portion, and the first and second connectors rotate in opposite directions under the drive of the first transmission portion. The reversing assembly is connected to the first connector or the second connector. When the first connector is rotationally connected to the reversing assembly, the second transmission portion rotates in a first direction. When the second connector is rotationally connected to the reversing assembly, the second transmission portion rotates in a second direction opposite to the first direction. Preferably, the linkage assembly further includes a transmission shaft, with the first connector, the second connector, and the reversing assembly sleeve mounted on the transmission shaft, and the first connector or the second connector drives the rotation shaft for rotation via the reversing assembly. Preferably, the reversing assembly includes a driven portion, which is disposed between the first connecting member and the second connecting member and meshes with the first connecting member or the second connecting member.

[0007] Furthermore, the driven portion includes a rolling bearing and at least two pawls. The inner ring of the rolling bearing is fixed to the rotating shaft, and the outer ring of the rolling gear is rotatably disposed on the side of the inner ring away from the rotating shaft, with the inner ring driving the rotating shaft in rotation. The pawls are respectively fixed to the side of the inner ring near the first connecting member and the side near the second connecting member, and mesh with the first connecting member or the second connecting member. The first connecting member or the second connecting member drives the inner ring of the rolling bearing via the corresponding pawls.

[0008] Furthermore, the reversing assembly includes a triggering portion, a driven portion, and a steering rod. One end of the triggering portion is rotationally connected to the second transmission portion. The end of the triggering portion, distal to the second transmission portion, is fixed to a surface of the driven portion distal to the transmission shaft. Driven by the triggering portion, the driven portion moves back and forth along the axial direction of the transmission shaft. The steering rod is disposed on the second transmission portion. After the second transmission portion reaches a predetermined angle, the steering rod triggers the triggering portion. The steering rod, in turn, triggers the triggering portion to connect the driven portion to the first or second connecting member. Preferably, the triggering portion further includes a first push rod, a connecting rod, and a second push rod. One end of the first push rod is rotationally connected to the second transmission portion 22. When activated by the steering rod, the first push rod rotates in the first or second direction. One end of the connecting rod is connected to the end of the first push rod distal to the second transmission portion. Driven by the first push rod, the connecting rod moves back and forth along the axial direction of the transmission shaft. One end of the second push rod is connected to the driven part, and the other end of the push rod is rotatably connected to the connecting rod. The second push rod drives the driven part to move back and forth along the axial direction of the transmission shaft under the push of the connecting rod. Preferably, the first support plate is fixedly connected to the side of the second transmission part away from the touch part.

[0009] Furthermore, the at least two steering mechanisms include at least one first steering mechanism and at least one second steering mechanism. The first steering mechanism is connected to the corresponding first bending mechanism. The second steering mechanism is connected to the corresponding second bending mechanism. A phase difference in movement arc exists between the steering rod of the first switching mechanism and the steering rod of the second steering mechanism, and the phase difference in movement arc is greater than or equal to 90°. Preferably, the phase difference in movement arc is equal to 90°.

[0010] Furthermore, the first support plate includes a first ascending state, a first descending state, a second ascending state, and a second descending state. When the first support plate is in the first ascending state, the angle between the first support plate and the second support plate decreases from 180° to 90°. When the first support plate is in the first descending state, the angle between the first support plate and the second support plate decreases from 90° to 0°. When the first support plate is in the second ascending state, the angle between the first support plate and the second support plate increases from 0° to 90°. When the first support plate is in the first descending state, the angle between the first support plate and the second support plate decreases from 90° to 180°. Preferably, the first support plate of the bending mechanism cyclically moves in the order of the first ascending state, the first descending state, the second ascending state, and the second descending state.

[0011] Furthermore, a first angle is defined between the first support plate and the second support plate in the first bending mechanism, a second angle is defined between the first support plate and the second support plate in the second bending mechanism, and the difference between the first angle and the second angle is greater than or equal to 90°. Preferably, the difference between the first angle and the second angle is equal to 90°.

[0012] Furthermore, the bending mechanism further includes a hinge, the hinge having a fixed connection portion and a movable connection portion, the fixed connection portion is connected to the second support plate, and the movable connection portion is connected to the first support plate.

[0013] Furthermore, the driving mechanism includes a motor and a synchronization component. The motor has an output terminal. The synchronization component is connected to the output terminal of the motor, and the plurality of steering mechanisms are all connected to the synchronization component.

[0014] Furthermore, the synchronization assembly includes a linkage shaft and at least two synchronization belts. One end of the linkage shaft is connected to the output end of the motor. One end of the synchronization belt is sleeved on the linkage shaft, and the other end of the synchronization belt is sleeved on the steering mechanism.

[0015] The present invention further provides a display panel bending method, wherein the display panel bending method uses the bending device as described above to perform a bending operation on the display panel.

[0016] The display panel bending method includes: placing at least two display panels on at least two bending mechanisms in the bending device respectively; in the bending device, the bending mechanisms are connected to the driving mechanisms through corresponding steering mechanisms, and the driving mechanisms are started. The driving mechanisms drive the first support plate in the bending mechanism to reciprocate relative to the second support plate in the bending mechanism through the corresponding steering mechanisms, and the display panels synchronously perform reciprocating folding motion under the support of the first support plate.

[0017] The step of reciprocating motion of the first support plate relative to the second support plate includes: at least two of the bending mechanisms include at least one first bending mechanism and at least one second bending mechanism; when the first support plate in the first bending mechanism is in an ascending state driven by the driving mechanism, the first support plate in the second bending mechanism is in a descending state driven by the driving mechanism; when the first support plate in the first bending mechanism is in a descending state driven by the driving mechanism, the first support plate in the second bending mechanism is in an ascending state driven by the driving mechanism.

[0018] The advantages of the present invention are as follows: In a bending device and display panel bending method of the present invention, a single drive mechanism can drive multiple bending mechanisms in parallel simultaneously, thereby enabling dynamic bending tests on multiple folding display panels to be performed simultaneously, significantly improving the throughput and efficiency of the bending tests. Furthermore, the bending device staggers the operating trends of the first support plates in the multiple bending mechanisms. The gravity of the first support plate with a downward trajectory drives the first support plates in the other bending mechanisms with an upward trajectory to climb upward, thereby reducing the load on the drive mechanism during operation of the bending device and significantly reducing the operating power consumption of the bending device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 A simplified structural diagram of a bending device according to an embodiment of the present invention;

[0021] Figure 2 Schematic diagram of the structure of the steering mechanism when the reversing assembly is connected to the first connecting member in an embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the structure of the steering mechanism when the reversing assembly is connected to the second connecting member in an embodiment of the present invention;

[0023] Figure 4 Schematic diagram of the operating state of the bending mechanism in an embodiment of the present invention.

[0024] The components in the figure are shown as follows:

[0025] Bending device 1; Driving mechanism 10;

[0026] Motor 11; Output terminal 111;

[0027] Synchronous component 12; Linkage shaft 121;

[0028] Synchronous belt 122; Steering mechanism 20;

[0029] First steering mechanism 201; Second steering mechanism 202;

[0030] First transmission part 21; First gear 211;

[0031] Second transmission part 22; Second gear 221;

[0032] Linking assembly 23; First connecting member 231;

[0033] Second connecting member 232; Transmission shaft 233;

[0034] Transmission gear 234; Reversing assembly 24;

[0035] Actuating portion 241; First push rod 2411;

[0036] Connecting rod 2412; Second push rod 2413;

[0037] Driven part 242; Rolling bearing 2421;

[0038] a ratchet portion 2422; a steering rod 243;

[0039] Bending mechanism 30; First bending mechanism 301;

[0040] Second bending mechanism 302; first support plate 31;

[0041] Second support plate 32; hinge 33. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0043] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0045] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0046] The disclosure below provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0047] With the booming development of foldable display technology, dynamic bending tests have become a core indicator for measuring product durability and reliability, attracting significant industry attention. In related foldable display technologies, bending test equipment generally utilizes a motor-driven architecture. This architecture precisely controls the flip bracket, which in turn drives the folding jig through a high-frequency reciprocating cycle within an angle range of 0° to 180°, closely simulating the folding operation scenarios experienced by users in daily use. This allows for comprehensive testing of the display's performance under frequent bending conditions. However, this traditional design has significant drawbacks: during the complete cycle of the jig's initial 180° unfolding, 0° full folding, and then back to the 180° unfolded state, the motor must continuously counteract the resistance torque created by the flip bracket and the folding jig's own weight. This continuous high-load operation not only causes the motor to operate at its extreme limits for extended periods, significantly increasing the equipment's energy consumption, but also significantly increases the risk of failures such as motor overheating and mechanical wear, seriously impacting the equipment's service life and operational stability.

[0048] Based on the problems found in the above-mentioned related folding display technologies, a bending device 1 is provided in an embodiment of the present invention. Figure 1 As shown in , the bending device 1 includes a driving mechanism 10, at least two steering mechanisms 20, and at least two bending mechanisms 30. The multiple steering mechanisms 20 are all connected to the driving mechanism 10, and the bending mechanisms 30 are respectively connected to the corresponding steering mechanisms 20. The panel to be bent is placed on the bending mechanism 30. The steering mechanism 20, driven by the driving mechanism 10, leads the bending mechanism 30, causing the bending mechanism 30 to bend, thereby causing the panel placed on the bending mechanism 30 to bend. In addition, in the embodiment of the invention, through power diversion and coordinated control, a single driving mechanism 10 can drive multiple bending mechanisms 30 in parallel, thereby realizing dynamic bending testing of multiple folding display panels at the same time, significantly improving the throughput and efficiency of the bending test, and providing an efficient solution for large-scale reliability testing of folding display products.

[0049] In this embodiment of the present invention, each bending mechanism 30 has an ascending state and a descending state. When the bending mechanism 30 is in the ascending state, at least a portion of the support plates used to support the panels are in an ascending movement; when the bending mechanism 30 is in the descending state, at least a portion of the support plates used to support the panels are in a descending movement. The multiple bending mechanisms 30 include at least one first bending mechanism 301 and at least one second bending mechanism 302. When the support plates in the first bending mechanism 301 are in the ascending state, the support plates in the second bending mechanism 302 are in the descending state. When the support plates in the first bending mechanism 301 are in the descending state, the support plates in the second bending mechanism 302 are in the ascending state. That is, when the support plate of the first bending mechanism 301 is in an upward movement trend, the support plate of the second bending mechanism 302 is in a downward movement trend, and when the support plate of the first bending mechanism 301 is in a downward movement trend, the support plate of the second bending mechanism 302 is in an upward movement trend. By utilizing the conversion principle of gravitational potential energy, the support plate in the descending process provides auxiliary driving force for the ascending support plate under the action of its own gravity, thereby reducing the load of the driving mechanism 10 during operation and significantly reducing the operating power consumption of the bending device 1.

[0050] The drive mechanism 10 includes a motor 11 and a synchronization assembly 12 connected to the motor 11. The motor 11 has a kinetic energy output terminal 111. The motor 11 can convert electrical energy into kinetic energy, causing the output terminal 111 to rotate cyclically in the same direction at a constant speed, continuously outputting stable power, thereby driving the bending mechanism 30 to bend the panel to be bent, providing basic support for the bending movement of the bending mechanism 30. The synchronization assembly 12 is connected to the output terminal 111 of the motor 11, and multiple bending mechanisms 30 are connected to the synchronization assembly 12 via corresponding steering mechanisms 20. The synchronization assembly 12 can divert the kinetic energy generated by the motor 11, thereby enabling a single motor to simultaneously drive multiple bending mechanisms 30.

[0051] Specifically, the synchronization component 12 includes a linkage shaft 121 and at least two synchronization belts 122. The linkage shaft 121 is connected to the output end 111 of the motor 11 and can rotate synchronously with the rotation of the output end 111 of the motor 11. One end of the synchronization belt 122 is sleeved on the linkage shaft 121, and the other end is sleeved on the steering mechanism 20. Driven by the motor 11, the linkage shaft 121 starts to rotate and drives the corresponding steering mechanism 20 through the synchronization belt 122. The steering mechanism 20 finally drives the bending mechanism 30. Optionally, one end of the linkage shaft 121 can be rigidly connected to the output end 111 of the motor 11 through an elastic coupling to ensure zero-gap power transmission; the linkage shaft 121 can also be provided with a plurality of equidistantly distributed synchronization pulleys, and the synchronization belt 122 can be sleeved on the corresponding synchronization pulleys, and the position of the corresponding synchronization belt 122 is limited by the synchronization pulleys to prevent the synchronization belt 122 from shifting during operation. Furthermore, the synchronous belt 122 can be made of high-strength polyurethane with an embedded fiberglass cord as a tensile layer, exhibiting high strength and low elongation. The inner surface of the synchronous belt 122 features a precise toothed structure, meshing with the synchronous pulleys on the linkage shaft 121 and the power input pulley of the steering mechanism 20, thereby improving transmission efficiency and reducing energy loss. One end of each synchronous belt 122 is precisely fitted over the corresponding synchronous pulley on the linkage shaft 121, while the other end tightly engages the power input pulley of the steering mechanism 20, achieving stable power transmission through toothed meshing.

[0052] The rotational motion of the output end 111 of the motor 11 is transmitted to the linkage shaft 121 through the coupling, driving the linkage shaft 121 to rotate synchronously. The linkage shaft 121 diverts kinetic energy to multiple different steering mechanisms 20 through multiple synchronous belts 122. After each steering mechanism 20 receives the power transmitted by the synchronous belt 122, it is transmitted through its internal transmission components, and finally drives the corresponding bending mechanism 30, realizing the synchronous and precise movement of multiple bending mechanisms 30, greatly improving the efficiency of power transmission, and reducing the energy loss in the transmission process through the optimized mechanical structure, effectively reducing the overall energy consumption of the equipment.

[0053] like Figure 1 、 Figure 2 and Figure 3 As shown in the figure, the steering mechanism 20 includes a first transmission part 21, a second transmission part 22 and a linkage assembly 23. The first transmission part 21 is connected to the driving mechanism 10, and the second transmission part 22 is connected to the bending mechanism 30. At the same time, the two ends of the linkage assembly 23 are respectively connected to the first transmission part 21 and the second transmission part 22. The first transmission part 21 rotates along the first direction A under the drive of the driving mechanism 10, and drives the second transmission part 22 through the linkage assembly 23. Finally, the second transmission part 22 rotates with the first support plate 31 in the bending mechanism 30 to realize the transmission of kinetic energy.

[0054] Specifically, the first transmission unit 21 includes a coaxially connected synchronous pulley and a first gear 211. The corresponding synchronous belt 122 is mounted on the synchronous pulley. The drive mechanism 10 drives the first gear 211 to rotate via the synchronous belt 122 and the synchronous pulley, thereby transmitting power to the first transmission unit 21. The linkage assembly 23 includes a transmission shaft 233, a first connecting member 231, a second connecting member 232, and a transmission gear 234. The first connecting member 231 and the second connecting member 232 are mounted on the transmission shaft 233 and mesh with the first gear 211, thereby achieving meshing transmission between the first transmission unit 21 and the linkage assembly 23. In the axial direction of the transmission shaft 233, the first connecting member 231 and the second connecting member 232 are respectively located on either side of the first gear 211, and the first connecting member 231 and the second connecting member 232 are symmetrically arranged, so that the first connecting member 231 and the second connecting member 232 run in opposite directions. The transmission shaft 233 can select its running direction by selecting whether to establish a transmission connection with the first connecting member 231 or the second connecting member 232. That is, when the first connecting member 231 establishes a transmission connection with the transmission shaft 233, the transmission shaft 233 rotates in a third direction C; when the second connecting member 232 establishes a transmission connection with the transmission shaft 233, the transmission shaft 233 rotates in a fourth direction D opposite to the third direction C. Optionally, the first gear 211, the first connecting member 231, and the second connecting member 232 can each be a bevel gear of appropriate size. The transmission gear 234 is mounted on one end of the transmission shaft 233 away from the first transmission part 21 , and the transmission gear 234 is meshed with the second transmission part 22 , thereby achieving meshing transmission between the linkage assembly 23 and the second transmission part 22 .

[0055] The second transmission unit 22 includes a second gear 221, which meshes with the transmission gear 234 of the linkage assembly 23 and rotates in a first direction A or a second direction B opposite to the first direction A under the meshing transmission of the linkage assembly 23. Specifically, when the transmission shaft 233 in the linkage assembly 23 rotates in the third direction C, the second gear 221 of the second transmission unit 22 rotates in the first direction A; when the transmission shaft 233 in the linkage assembly 23 rotates in the fourth direction D, the second gear 221 of the second transmission unit 22 rotates in the second direction B. Simultaneously, the second gear 221 is connected to the bending mechanism 30 and causes the support plate in the bending mechanism 30 to continuously fold and unfold. Optionally, the transmission gear 234 can be a bevel gear of appropriate size, and the second gear 221 can be either a bevel gear or a face gear.

[0056] Furthermore, the steering mechanism 20 also includes a reversing component 24, one end of which is connected to the first connecting member 231 or the second connecting member 232 in the linkage component 23, and the end of the reversing component 24 away from the first transmission part 21 is connected to the second transmission part 22. When the second gear 221 in the second transmission part 22 rotates to a preset angle, the reversing component 24 can be triggered, prompting the reversing component 24 to change the component connected to the end close to the first transmission part 21, thereby changing the running direction of the linkage component 23, and changing the running direction of the second transmission part 22 by changing the running direction of the linkage component 23, thereby changing the running direction of the support plate in the bending mechanism 30.

[0057] Specifically, the reversing assembly 24 adopts a mechanically triggered automatic reversing design, and is composed of a driven part 242, a trigger part 241 and a steering rod 243 to form a precise control structure to achieve automatic switching of the running direction.

[0058] The driven portion 242 is mounted on the transmission shaft 233 of the linkage assembly 23 and is located between the first and second connecting members 231 and 232. The driven portion 242 can be connected to either the first or second connecting member 231. When the driven portion 242 is connected to the first connecting member 231, the transmission shaft 233 forms a stable transmission link with the first connecting member 231 through the driven portion 242. In this connected state, the transmission shaft 233 is able to rotate in the third direction C. Specifically, the power output of the first connecting member 231 is transmitted to the transmission shaft 233 via the driven portion 242, driving the transmission shaft 233 to continuously rotate in the predetermined third direction C. When the driven portion 242 switches to connecting with the second connecting member 232, the transmission link is changed, and the transmission shaft 233 is now connected to the second connecting member 232 through the driven portion 242. The power output of the second connecting member 232 now causes the transmission shaft 233 to rotate in the fourth direction D. Therefore, by switching the connection between the driven portion 242 and the first connecting member 231 and the second connecting member 232, the running direction of the transmission shaft 233 can be switched between the third direction C and the fourth direction D, thereby switching the running direction of the second gear 221 in the second transmission portion 22 between the first direction A and the second direction B, thereby enabling the support plate in the bending mechanism 30 to continuously fold and unfold. Through this cyclical, precisely controllable operating mode, the bending device 1 can simulate the repeated bending and unfolding process of a foldable display panel during actual use, thereby allowing for comprehensive and reliable testing of the folding performance of the foldable display panel.

[0059] Specifically, the driven portion 242 includes a rolling bearing 2421 and at least two pawl portions 2422. The inner ring of the rolling bearing 2421 is fixed to the rotating shaft 233. The outer ring of the rolling gear 2421 is rotatably arranged on the side of the inner ring away from the rotating shaft 233. The outer ring of the rolling bearing 2421 is stationary in the third direction C and the fourth direction D, while the inner ring of the rolling bearing 2421 rotates inside the outer ring about the axial direction of the rotating shaft 233. The rotating shaft 233 rotates in the third direction C or the fourth direction D driven by the inner ring of the rolling bearing 2421. The inner ring of the rolling gear 2421 is respectively provided with at least one pawl portion 2422 on one side close to the first connecting member 231 and on one side close to the second connecting member 232. The first connecting member 231 is provided with a pawl structure close to the driven part 242 and the second connecting member 232 is provided with a pawl structure that engages with the corresponding pawl portion 2422, so that the pawl portion 2422 can be engaged with the first connecting member 231 or the second connecting member 232 to improve the connection reliability between the driven part 242 and the first connecting member 231 and the second connecting member 232. The first connecting member 231 or the second connecting member 232 also drives the inner ring of the rolling bearing 2421 to rotate with the axial direction of the rotating shaft 233 as the rotation axis through the corresponding pawl portion 2422.

[0060] One end of the triggering portion 241 is rotationally connected to the second gear 221 in the second transmission portion 22 and is located on the side of the second gear 221 away from the bending mechanism 30. This effectively avoids mechanical interference that may occur during the operation of the reversing assembly 24, ensuring that the bending mechanism 30 can complete the folding and unfolding movements without interference, maintaining the continuity and accuracy of the testing process. The end of the triggering portion 241 away from the second transmission portion 22 is fixed to the surface of the driven portion 242 away from the transmission shaft 233. Driven by the triggering portion 241, the driven portion 242 moves back and forth along the axial direction of the transmission shaft 233, thereby switching the connection between the driven portion 242 and the first connecting member 231 and the second connecting member 232.

[0061] Specifically, the actuator 241 is a connecting rod structure comprising a first push rod 2411, a connecting rod 2412, and a second push rod 2413. One end of the first push rod 2411 is rotatably connected to the second transmission portion 22, and the first push rod rotates in the first direction A or the second direction B under the activation of the steering rod 243. One end of the connecting rod 2412 is connected to the end of the first push rod 2411 away from the second transmission portion 22, and is driven by the first push rod 2411 to move back and forth axially along the transmission shaft 233. One end of the second push rod 2413 is connected to the outer ring of the rolling bearing 2421 of the driven portion 242, and the other end is rotatably connected to the connecting rod 2412. Driven by the connecting rod 2412, the second push rod 2413 drives the driven portion 242 to move back and forth axially along the transmission shaft 233. The actuator 241 is connected to the driven portion 242 via a connecting rod structure. This non-rigid connection ensures efficient power transmission while also buffering mechanical stress to a certain extent, extending component life. Optionally, the second push rod 2413 can be a lever structure with a fulcrum around which the two ends of the second push rod 2411 can rotate back and forth.

[0062] The steering rod 243 is fixedly mounted on the second gear 221 of the second transmission unit 22 and is located on the surface of the second gear 221 facing the triggering portion 241. When the second gear 221 in the second transmission unit 22 begins to rotate under the drive of the linkage assembly 23, the steering rod 243 also performs a circular motion around the axis of the second gear 221 as the second gear 221 rotates. When the second gear 221 reaches a predetermined angle, the steering rod 243 moves into contact with the triggering portion 241. Driven by the second gear 221, the steering rod 243 pushes the triggering portion 241, and the mechanical force generated between the steering rod 243 and the triggering portion 241 causes the triggering portion 241 to move. Specifically, the end of the actuator 241 away from the second transmission member 22 is pushed by the steering rod 243 to deflect in the first direction A or the second direction B, driving the driven member 242 to move axially along the transmission shaft 233. This allows the driven member 242 to move from the first connecting member 231 to the second connecting member 232, or vice versa, thereby switching the connection between the driven member 242 and the first and second connecting members 231, 232. Optionally, the axial centerline of the steering rod 243 is perpendicular to the surface of the second gear 221 facing the actuator 241. Preferably, the length of the steering rod 243 is greater than the distance between the actuator 241 and the second gear 221 to ensure that the steering rod 243 can contact the actuator 241.

[0063] The first push rod 2411, the connecting rod 2412, and the second push rod 2413 in the triggering portion 241 collectively form a transmission link between the steering rod 243 and the driven portion 242. The steering rod 243 is transmission-connected to the driven portion 242 via the triggering portion 241. When the first push rod 2411 in the triggering portion 241 is pushed and deflected by the steering rod 243, the displacement of the end of the first push rod 2411 away from the second transmission portion 22 is immediately transmitted to the second push rod 2413 via the connecting rod 2412. Due to the rigid connection between the connecting rod 2412, the first push rod 2411, and the second push rod 2413, the deflection force of the first push rod 2411 directly acts on the second push rod 2413 through the connecting rod 2412, pushing the second push rod 2413 to move in a predetermined direction. As the second push rod 2413 moves, the connection end between the second push rod 2413 and the driven portion 242 drives the driven portion 242 to move synchronously in the axial direction of the transmission shaft 233 , thereby achieving linkage between the triggering portion 241 and the driven portion 242 .

[0064] The bending mechanism 30 includes a first support plate 31 and a second support plate 32, which are rotatably connected to each other. The first support plate 31 reciprocates relative to the second support plate 32 under the drive of the steering mechanism 20. Specifically, the first support plate 31 and the second support plate 32 are linked by a hinge. This connection method enables the first support plate 31 to perform precise and controllable circular motion with its hinge edge with the second support plate 32 as the bending axis, simulating the opening and closing action of the folding display panel in actual use. Specifically, the bending mechanism 30 also includes a hinge 33, which has a fixed connection portion and a movable connection portion. The fixed connection portion is connected to the second support plate 32, and the movable connection portion is connected to the first support plate 31. The fixed connection portion and the movable connection portion can be connected by a high-strength alloy shaft pin and a wear-resistant bearing to ensure smooth and stable rotation. The fixed connection portion can be firmly connected to the second support plate 32 by bolts or embedded slots to form a stable support base. The movable connection portion can also be fixedly connected to the first support plate 31 via bolts or embedded slots. The first support plate 31 is also connected to the second gear 221 of the second transmission portion 22 of the steering mechanism 20 and fixedly connected to the side of the second gear 221 facing away from the trigger portion 241. Driven by the second gear 221, the first support plate 31 performs circular motion in the first direction A or the second direction B. During operation of the bending device 1, when power is transmitted to the bending mechanism 30 via the steering mechanism 20, the first support plate 31 performs circular motion along a predetermined trajectory with the hinge 33 as the axis. The angle between the first support plate 31 and the second support plate 32 changes regularly accordingly, thereby achieving a cyclic simulation of the folding and unfolding of the display panel, providing a reliable physical model for bending fatigue testing and folding performance evaluation of folding display panels.

[0065] Specifically, during the operation of the bending device 1, the first support plate 31 in the bending mechanism 30 has an ascending state and a descending state. When the first support plate 31 is in the ascending state, the first support plate 31 moves from being parallel to the second support plate 32 to being perpendicular to the second support plate 32, that is, the movement trajectory of the first support plate 31 is in an ascending trend. When the first support plate 31 is in the descending state, the first support plate 31 moves from being perpendicular to the second support plate 32 to being parallel to the second support plate 32, that is, the movement trajectory of the first support plate 31 is in a descending trend.

[0066] At least two bending mechanisms 30 and at least two steering mechanisms 20 are provided in the bending device 1. In the embodiment of the present invention, the bending device 1 is provided with two bending mechanisms 30 and two steering mechanisms 20 as an example. However, in other embodiments of the present invention, the number of bending mechanisms 30 and steering mechanisms 20 in the bending device 1 is not limited. However, each bending mechanism 30 is connected to the driving mechanism 10 through a corresponding steering mechanism 20, that is, the number of bending mechanisms 30 in the bending device 1 is equal to the number of steering mechanisms 20.

[0067] The two bending mechanisms 30 include a first bending mechanism 301 and a second bending mechanism 302. The two steering mechanisms 20 include a first steering mechanism 201 and a second steering mechanism 202. The first steering mechanism 201 and the second steering mechanism 202 are respectively connected to the drive mechanism 10 via corresponding synchronization assemblies 12. The first bending mechanism 301 is connected to the first steering mechanism 201, and the second bending mechanism 302 is connected to the second steering mechanism 202. When the first support plate 31 in the first bending mechanism 301 is in an ascending state, the first support plate 31 in the second bending mechanism 302 is in a descending state. When the first support plate 31 in the first bending mechanism 301 is in a descending state, the first support plate 31 in the second bending mechanism 302 is in an ascending state. That is, when the movement trajectory of the first support plate 31 in the first bending mechanism 301 is in an upward trend, the movement trajectory of the first support plate 31 in the second bending mechanism 302 is in a downward trend; and when the movement trajectory of the first support plate 31 in the first bending mechanism 301 is in a downward trend, the movement trajectory of the first support plate 31 in the second bending mechanism 302 is in an upward trend. In the embodiment of the present invention, the movement trends of the first support plates 31 in different bending mechanisms 30 are staggered. The first support plate 31 with a downward movement trajectory can drive the first support plates 31 in other bending mechanisms 30 with an upward movement trajectory to climb upward under the action of its own gravity. That is, by converting gravitational potential energy, auxiliary driving force is provided to the first support plates 31 in other bending mechanisms 30 with an upward movement trajectory, thereby reducing the load of the driving mechanism 10 during the operation of the bending device 1 and significantly reducing the operating power consumption of the bending device 1.

[0068] Specifically, such as Figure 4 As shown in , during a complete folding and unfolding operation, the bending mechanism 30 needs to go through two rising states and two descending states, namely the first rising state, the first descending state, the second rising state, and the second descending state. The first support plate 31 in the bending mechanism 30 can repeatedly fold the display panel by cyclically operating in the order of the first rising state, the first descending state, the second rising state, and the second descending state.

[0069] When the first support plate 31 in the bending mechanism 30 is in the first rising state, the first support plate 31 rises along the first direction A, thereby reducing the angle between the first support plate 31 and the second support plate 32 from 180° to 90°, that is, the first support plate 31 moves from forming a flat structure with the second support plate 32 to forming a right-angle structure with the first support plate 31 and the second support plate 32.

[0070] When the first support plate 31 in the bending mechanism 30 is in the first descending state, the first support plate 31 descends along the first direction A, so that the angle between the first support plate 31 and the second support plate 32 is reduced from 90° to 0°, that is, the first support plate 31 moves from forming a right-angle structure with the second support plate 32 to forming a stacked structure with the first support plate 31 and the second support plate 32.

[0071] When the first support plate 31 in the bending mechanism 30 is in the second rising state, the first support plate 31 rises along the second direction B, thereby increasing the angle between the first support plate 31 and the second support plate 32 from 0° to 90°, that is, the first support plate 31 moves from forming an overlapping structure with the second support plate 32 to forming a right-angle structure with the first support plate 31 and the second support plate 32.

[0072] When the first support plate 31 in the bending mechanism 30 is in the second descending state, the first support plate 31 descends along the second direction B, so that the angle between the first support plate 31 and the second support plate 32 is reduced from 90° to 180°, that is, the first support plate 31 moves from forming a right-angle structure with the second support plate 32 to forming a flattened structure with the first support plate 31 and the second support plate 32.

[0073] Furthermore, a first angle is defined between the first support plate 31 and the second support plate 32 in the first bending mechanism 301, and a second angle is defined between the first support plate 31 and the second support plate 32 in the second bending mechanism 302. The difference between the first angle and the second angle is greater than or equal to 90°, thereby ensuring that the first support plate 31 in the first bending mechanism 301 and the first support plate 31 in the second bending mechanism 302 are in opposite operating states. This ensures that when the first support plate 31 in the first bending mechanism 301 is in an ascending state, the first support plate 31 in the second bending mechanism 302 is in a descending state, and when the first support plate 31 in the first bending mechanism 301 is in a descending state, the first support plate 31 in the second bending mechanism 302 is in an ascending state. Optionally, the difference between the first angle and the second angle is equal to 90°. Furthermore, the steering rod 243 of the first steering mechanism 201 and the steering rod 243 of the second steering mechanism 202 also have a phase difference in their arc of motion. This phase difference in arc of motion is a constant difference between the arc of motion of the steering rod 243 in the first steering mechanism 201 and the arc of motion of the steering rod 243 in the second steering mechanism 202, thereby ensuring that the corresponding bending devices can change their operating directions in a timely manner. Optionally, this phase difference in arc of motion is greater than or equal to 90°. Preferably, this phase difference in arc of motion is equal to 90°.

[0074] During the repeated folding of the folding display panel, when the first support plate 31 in the bending mechanism 30 enters the second rising state from the first descending state, it is necessary to change the running direction of the first support plate 31 from the first direction A to the second direction B. At this time, the changing direction of the first support plate 31 can be achieved by the reversing component 24 in the steering mechanism 20.

[0075] Specifically, such as Figure 2 、 Figure 3 and Figure 4 As shown in the figure, when the first support plate 31 in the bending mechanism 30 is in the first rising state and the first falling state, the driven part 242 in the steering mechanism 20 is connected to the first connecting member 231, prompting the second transmission part 22 in the steering mechanism 20 to rotate along the first direction A, and the steering rod 243 arranged on the second transmission part 22 also moves from the side of the first push rod 2411 in the touch part 241 close to the first transmission part 21 to the side of the first push rod 2411 away from the first transmission part 21.

[0076] When the first support plate 31 in the bending mechanism 30 enters the second rising state from the first descending state, the steering rod 243 in the steering mechanism 20 contacts the side of the first push rod 2411 away from the first transmission part 21 under the drive of the second transmission part 22, and pushes the first push rod 2411 in the direction close to the first transmission part 21, thereby moving the driven part 242 from the side close to the first connecting member 231 to the side close to the second connecting member 232 (when the driven part 242 is disconnected from the first connecting member 231, the driven part 242 will continue to move toward the second connecting member 232 under the action of inertia until it is connected to the second connecting member 232), prompting the driven part 242 to be disconnected from the first connecting member 231 and connected to the second connecting member 232, so that the second transmission part 22 is converted from rotating in the first direction A to rotating in the second direction B, and thereby also converting the running direction of the first support plate 31 connected to the second transmission part 22 from the first direction A to the second direction B.

[0077] During the repeated folding of the folding display panel, when the first support plate 31 in the bending mechanism 30 enters the first rising state from the second descending state, it is also necessary to convert the running direction of the first support plate 31 from the second direction B to the first direction A. At this time, it is also necessary to realize the conversion of the running direction of the first support plate 31 through the reversing component 24 in the steering mechanism 20.

[0078] Specifically, such as Figure 2 、 Figure 3 and Figure 4 As shown in the figure, when the first support plate 31 in the bending mechanism 30 is in the second rising state and the second falling state, the driven part 242 in the steering mechanism 20 is connected to the second connecting member 232, prompting the second transmission part 22 in the steering mechanism 20 to rotate along the second direction B, and the steering rod 243 arranged on the second transmission part 22 moves from the side of the first push rod 2411 in the touch part 241 away from the first transmission part 21 to the side of the first push rod 2411 close to the first transmission part 21.

[0079] When the first support plate 31 in the bending mechanism 30 enters the first ascending state from the second descending state, the steering rod 243 in the steering mechanism 20 contacts the side of the first push rod 2411 close to the first transmission part 21 under the drive of the second transmission part 22, and pushes the touch part 241 in the direction away from the first transmission part 21, thereby moving the driven part 242 from the side close to the second connecting member 232 to the side close to the first connecting member 231 (when the driven part 242 is disconnected from the second connecting member 232, the driven part 242 will continue to move toward the first connecting member 231 under the action of inertia until it is connected to the first connecting member 231), prompting the driven part 242 to be disconnected from the second connecting member 232 and connected to the first connecting member 231, so that the second transmission part 22 is converted from rotating in the second direction B to rotating in the first direction A, and thereby the movement direction of the first support plate 31 connected to the first transmission part 21 is converted from rotating in the second direction B to rotating in the first direction A.

[0080] An embodiment of the present invention further provides a display panel bending method, which can use the bending device described above to bend the display panel. Specifically, the display panel bending method includes the following steps:

[0081] Placing two display panels on two bending mechanisms in a bending device, respectively; activating a driving mechanism in the bending device, which simultaneously drives the two bending mechanisms through corresponding steering mechanisms, causing the first support plates in the two bending mechanisms to reciprocate relative to their second support plates, and the display panels to synchronously fold back and forth under the support of the first support plates;

[0082] Furthermore, the step of causing the first support plate to reciprocate relative to the second support plate includes:

[0083] The first support plates in the first bending mechanism and the second bending mechanism cyclically operate in the order of a first rising state, a first descending state, a second rising state, and a second descending state to achieve repeated folding of the display panel;

[0084] When the first support plate in the first bending mechanism is driven by the driving mechanism to be in the first ascending state, the first support plate in the second bending mechanism is driven by the driving mechanism to be in the first descending state;

[0085] When the first support plate in the first bending mechanism is driven by the driving mechanism to be in a first descending state, the first support plate in the second bending mechanism is driven by the driving mechanism to be in a second ascending state;

[0086] When the first support plate in the first bending mechanism is driven by the driving mechanism to be in the second ascending state, the first support plate in the second bending mechanism is driven by the driving mechanism to be in the second descending state;

[0087] When the first support plate in the first bending mechanism is driven by the driving mechanism to be in the first descending state, the first support plate in the second bending mechanism is driven by the driving mechanism to be in the first ascending state.

[0088] A bending test device is also provided in an embodiment of the present invention. The bending test device is used to test the bending performance of a flexible display panel, and includes the bending device 1 as described above. The bending device 1 is used to carry the panel to be tested and perform multiple folding operations on the carried panel. Furthermore, the bending test device also includes a panel transmission device, a control device, etc. The panel transmission device is used to transport the panel to be tested to the first support plate 31 and the second support plate 32 of the bending device 1, and is also used to remove the panel that has completed the test from the bending device 1, which can improve the test efficiency while reducing labor costs. The control device is connected to the bending device 1 and the panel transmission device, which can control the operating speed, folding force and number of cycles of the bending mechanism 30 in the bending device 1, and can also count the number of folds of the bending mechanism 30 in the bending device 1 in real time.

[0089] In an embodiment of the present invention, a single drive mechanism can simultaneously drive multiple bending mechanisms in parallel, thereby enabling dynamic bending testing of multiple folding display panels simultaneously, significantly improving the throughput and efficiency of the bending test. Furthermore, in an embodiment of the present invention, the operating trends of the first support plates in the multiple bending mechanisms are staggered. The gravity of the first support plate with a downward trajectory drives the first support plates in the other bending mechanisms with an upward trajectory to climb upward, thereby reducing the load on the drive mechanism during the operation of the bending device and significantly reducing the operating power consumption of the bending device.

[0090] While the disclosure has been described in conjunction with specific embodiments thereof, many alternatives, modifications and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

[0091] It should be noted that the above description is limited to some embodiments of the present disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in an order different from that described in the above embodiments and still achieve the desired results. Furthermore, the processes depicted in the accompanying drawings do not necessarily require the specific order or sequential order shown to achieve the desired results. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0092] The embodiments of the present disclosure are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present disclosure should be included in the scope of protection of the present disclosure.

Claims

1. A bending device, characterized in that: The device comprises a driving mechanism, at least two steering mechanisms and at least two bending mechanisms, wherein the steering mechanisms are connected to the driving mechanism, the bending mechanisms are respectively connected to corresponding steering mechanisms, and the steering mechanisms drive the bending mechanisms to open and close under the drive of the driving mechanism; Each of the bending mechanisms includes a first support plate and a second support plate, the first support plate is rotatably connected to the second support plate, and the first support plate reciprocates relative to the second support plate under the drive of the steering mechanism; The first support plate has an ascending state and a descending state; When the first support plate is in the raised state, the first support plate moves from being parallel to the second support plate to being perpendicular to the second support plate; When the first support plate is in the descending state, the first support plate moves from being perpendicular to the second support plate to being parallel to the second support plate; The at least two bending mechanisms include at least one first bending mechanism and at least one second bending mechanism; When the first support plate in the first bending mechanism is in the ascending state, the first support plate in the second bending mechanism is in the descending state; When the first support plate in the first bending mechanism is in the descending state, the first support plate in the second bending mechanism is in the ascending state.

2. The bending device according to claim 1, wherein: The steering mechanism comprises: a first transmission part connected to the driving mechanism, wherein the driving mechanism is used to drive the first transmission part to rotate; a second transmission part connected to the bending mechanism, and configured to drive the first support plate to rotate; a linkage assembly connecting the first transmission part and the second transmission part, the linkage assembly comprising a first connecting member and a second connecting member, the first connecting member and the second connecting member both being connected to the first transmission part, and the first connecting member and the second connecting member moving in opposite directions under the drive of the first transmission part; a reversing assembly connected to the first connecting member or the second connecting member; When the first connecting member is rotationally connected to the reversing assembly, the second transmission portion rotates in the first direction; When the second connecting member is rotationally connected to the reversing assembly, the second transmission portion rotates in a second direction opposite to the first direction; Preferably, the linkage assembly further comprises a transmission shaft, the first connecting member, the second connecting member and the reversing assembly sleeve are arranged on the transmission shaft, and the first connecting member or the second connecting member drives the rotating shaft to rotate through the reversing assembly; Preferably, the reversing assembly includes a driven portion, which is disposed between the first connecting member and the second connecting member and meshes with the first connecting member or the second connecting member; Preferably, the driven part includes: A rolling bearing, wherein the inner ring of the rolling bearing is fixed on the rotating shaft, and the outer ring of the rolling gear is rotatably arranged on a side of the inner ring away from the rotating shaft, and the inner ring drives the rotating shaft to rotate; At least two pawl parts are respectively fixed on the side of the inner ring close to the first connecting member and the side close to the second connecting member, and are engaged with the first connecting member or the second connecting member. The first connecting member or the second connecting member drives the inner ring of the rolling bearing through the corresponding pawl parts.

3. The bending device according to claim 2, wherein: The reversing assembly comprises: a triggering portion, one end of which is rotatably connected to the second transmission portion, and an end of which is away from the second transmission portion and is fixed to a surface of the driven portion away from the transmission shaft, so that the driven portion moves back and forth along the axial direction of the transmission shaft under the drive of the triggering portion; a steering rod fixedly mounted on the second transmission part, and configured to actuate the actuating portion via the steering rod after the second transmission part has moved to a preset angle, wherein the actuating portion drives the driven portion to connect to the first connecting member or the second connecting member under the actuation of the steering rod; Preferably, the triggering portion includes: a first push rod, one end of which is rotatably connected to the second transmission portion, and the first push rod is rotated in the first direction or the second direction when triggered by the steering rod; a connecting rod, one end of which is connected to an end of the first push rod away from the second transmission portion, and the connecting rod moves back and forth along the axial direction of the transmission shaft under the drive of the first push rod; a second push rod, one end of the second push rod being connected to the driven portion, the other end of the second push rod being rotatably connected to the connecting rod, and the second push rod driving the driven portion to move back and forth along the axial direction of the transmission shaft under the push of the connecting rod; Preferably, the first supporting plate is fixedly connected to a side of the second transmission portion facing away from the actuating portion.

4. The bending device according to claim 3, wherein: At least two of the steering mechanisms include: at least one first steering mechanism connected to the corresponding first bending mechanism; at least one second steering mechanism connected to the corresponding second bending mechanism; There is a phase difference in movement arc between the steering rod of the first switching mechanism and the steering rod of the second steering mechanism, and the phase difference in movement arc is greater than or equal to 90°; Preferably, the phase difference of the moving arc is equal to 90°.

5. The bending device according to claim 1, wherein: The first support plate includes a first rising state, a first falling state, a second rising state, and a second falling state; When the first support plate is in the first raised state, the angle between the first support plate and the second support plate decreases from 180° to 90°; When the first support plate is in the first descending state, the angle between the first support plate and the second support plate decreases from 90° to 0°; When the first support plate is in the second raised state, the angle between the first support plate and the second support plate increases from 0° to 90°; When the first support plate is in the first descending state, the angle between the first support plate and the second support plate decreases from 90° to 180°; Preferably, the first support plate of the bending mechanism cyclically moves in the order of the first ascending state, the first descending state, the second ascending state and the second descending state.

6. The bending device according to claim 5, wherein: A first angle is formed between the first support plate and the second support plate in the first bending mechanism, and a second angle is formed between the first support plate and the second support plate in the second bending mechanism, and the difference between the first angle and the second angle is greater than or equal to 90°; Preferably, the difference between the first angle and the second angle is equal to 90°.

7. The bending device according to claim 1, wherein: The bending mechanism further comprises: The hinge has a fixed connection portion and a movable connection portion, the fixed connection portion is connected to the second support plate, and the movable connection portion is connected to the first support plate.

8. The bending device according to claim 1, wherein: The driving mechanism comprises: a motor having an output terminal; A synchronization component is connected to the output end of the motor, and the plurality of steering mechanisms are all connected to the synchronization component.

9. The bending device according to claim 8, wherein: The synchronization component includes: A linkage shaft, one end of which is connected to the output end of the motor; At least two synchronous belts, one end of the synchronous belt is sleeved on the linkage shaft, and the other end of the synchronous belt is sleeved on the steering mechanism.

10. A method for bending a display panel, characterized in that: Bending the display panel using the bending device according to any one of claims 1 to 9; The display panel bending method includes: placing at least two of the display panels respectively on at least two bending mechanisms in the bending device; In the bending device, the bending mechanisms are connected to the driving mechanisms through corresponding steering mechanisms. When the driving mechanisms are activated, the driving mechanisms drive the first support plate in the bending mechanism to reciprocate relative to the second support plate in the bending mechanism through the corresponding steering mechanisms. The display panel synchronously performs reciprocating folding motion under the support of the first support plate. The step of reciprocating the first support plate relative to the second support plate includes: The at least two bending mechanisms include at least one first bending mechanism and at least one second bending mechanism; When the first support plate in the first bending mechanism is in an ascending state under the driving of the driving mechanism, the first support plate in the second bending mechanism is in a descending state under the driving of the driving mechanism; When the first support plate in the first bending mechanism is in a descending state under the driving of the driving mechanism, the first support plate in the second bending mechanism is in an ascending state under the driving of the driving mechanism.

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