Rotating mechanism, folding display terminal

Abstract

The embodiment of the present application discloses a rotating mechanism and a folding display terminal, wherein the rotating mechanism includes: a rotating shaft; a first structural member, wherein the first structural member is provided with a first slide groove; a second structural member, wherein the second structural member is provided with a second slide groove; a third structural member, wherein the third structural member is provided in the first slide groove, and one end of the third structural member is rotatably connected to the rotating shaft; a fourth structural member, wherein the fourth structural member is provided in the second slide groove, and one end of the fourth structural member is rotatably connected to the rotating shaft; when the first structural member and the second structural member rotate around the rotating shaft, the third structural member slides relative to the first slide groove, and the fourth structural member slides relative to the second slide groove. Thus, the pulling force of the first structural member and the second structural member on the flexible screen is reduced, and the flatness of the flexible screen is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to a rotating mechanism and a smart terminal. Background Art

[0002] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend of future mobile electronic products. When unfolded, foldable display terminals can obtain a larger display area to improve the viewing effect. When folded, foldable display terminals can obtain a smaller volume, which is convenient for users to carry.

[0003] Wherein, the foldable display terminal at least includes: a flexible screen and a rotating mechanism for carrying the flexible screen.

[0004] However, during use, the rotating mechanism can easily generate a pulling force on the flexible screen when folding or unfolding, causing damage to the flexible screen and affecting the user experience. Summary of the invention

[0005] The embodiments of the present application provide a rotating mechanism and a folding display terminal, which solve the problem that the flexible screen is easily subjected to pulling force, affecting the user experience.

[0006] To achieve the above-mentioned purpose, the embodiment of the present application adopts the following technical solution: In the first aspect of the embodiment of the present application, a rotation mechanism is provided, and the rotation mechanism includes: a rotating shaft; a first structural member, the first structural member is provided with a first slide groove; a second structural member, the second structural member is provided with a second slide groove; a third structural member, the first end of the third structural member is connected to the rotating shaft, and the second end of the third structural member is provided in the first slide groove; a fourth structural member, the first end of the fourth structural member is connected to the rotating shaft, and the second end of the fourth structural member is provided in the second slide groove; when the first structural member and the second structural member rotate around the rotating shaft, the second end of the third structural member slides relative to the first slide groove, and the second end of the fourth structural member slides relative to the second slide groove. As a result, the first structural member can slide relative to the third structural member, and the second structural member can slide relative to the fourth structural member, which can release part of the bending force, reduce the pulling force on the flexible screen during the rotation of the first structural member and the second structural member, and improve the flatness of the flexible screen.

[0007] In an optional implementation, the rotating shaft includes: a first rotating shaft and a second rotating shaft; the first rotating shaft is connected to the second rotating shaft; the first rotating shaft and the second rotating shaft are connected through a transmission structure; the third structural member is connected to the first end of the transmission structure; the fourth structural member is connected to the second end of the transmission structure; when the third structural member drives the first end of the transmission structure to rotate around the first rotating shaft, the second end of the transmission structure drives the fourth structural member to rotate around the second rotating shaft; or, when the fourth structural member drives the second end of the transmission structure to rotate around the second rotating shaft, the first end of the transmission structure drives the third structural member to rotate around the first rotating shaft. In this way, the synchronization of the third structural member and the fourth structural member is achieved, and then the synchronization of the first structural member and the second structural member is achieved.

[0008] In an optional implementation, the transmission structure includes: a first gear sleeved on the first rotating shaft, and a second gear sleeved on the second rotating shaft, the first gear and the second gear meshing. Thus, the rotating member is directly connected to the gear, and the length of the lever arm is approximately the radius of the rotating shaft plus the length of the rotating member. The longer the lever arm, the greater the torque, and the better the torque can be transmitted for the unfolding and folding of the rotating mechanism.

[0009] In an optional implementation, the rotation mechanism further includes: an elastic component, when the first structural component and the second structural component are in a folded state or an unfolded state, the elastic component is in a first deformation; when the first structural component and the second structural component are between the folded state and the unfolded state, the elastic component is deformed into a second deformation; the deformation amount of the second deformation is greater than the deformation amount of the first deformation. Therefore, when the elastic component changes from the second deformation to the first deformation, it can provide torque for the rotation of the first rotating shaft and the second rotating shaft.

[0010] In an optional implementation, a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are connected; the elastic component at least includes: a first elastic component arranged on the third structural member; a first cam is sleeved on the first rotating shaft; the third structural member is in contact with the surface of the first cam; when the first structural member rotates, the first cam is stationary relative to the first rotating shaft; the third structural member rotates along the surface of the first cam and around the first rotating shaft; the first cam has a first surface, a second surface and a third surface; when the third structural member is in contact with the first surface or the second surface, the deformation of the first elastic component changes to the first deformation; when the third structural member is in contact with the third surface, the deformation of the first elastic component changes to the second deformation. Therefore, through the cooperation of the spring and the cam, torque can be provided for the rotation of the first rotating shaft and the second rotating shaft. The first rotating shaft can transfer the torque to the first structural member through the third structural member, and the second rotating shaft can transfer the torque to the second structural member through the fourth structural member, and finally act on the flexible screen, so that a closing force can be provided when the rotating mechanism is closed, making the folding process easier; appropriate resistance is provided in the initial stage of the rotating mechanism from folding to flattening to prevent the flexible screen from unfolding too quickly; appropriate assistance is provided when the rotating mechanism is flattened to a specific angle to achieve automatic flattening, and a flattening retention force is provided after unfolding.

[0011] In an optional implementation, the first elastic component and the second elastic component are springs or spring washers.

[0012] In an optional implementation, the rotating shaft includes: a first rotating shaft and a second rotating shaft, the first rotating shaft and the second rotating shaft are connected; the elastic component includes at least: a first C-type card sleeved on the first rotating shaft; when the first structural member rotates, the first rotating shaft rotates relative to the first C-type card; the first C-type card has a first plane and a first curved surface on the inner side, and the first rotating shaft includes a third plane and a fifth plane matching the first plane, and a second curved surface matching the first curved surface; when the third plane or the fifth plane contacts the first plane, the deformation of the first C-type card changes to the first deformation; when the second curved surface contacts the first plane, the deformation of the first C-type card changes to the second deformation. Therefore, by setting the C-type card, torque can be provided for the rotation of the first rotating shaft and the second rotating shaft, and the first rotating shaft and the second rotating shaft can transfer the torque to the first structural member and the second structural member through the third structural member and the fourth structural member, and finally act on the flexible screen to provide a holding force for the folding or flattening of the flexible screen.

[0013] In an optional implementation, the rotating shaft includes: a third rotating shaft; the elastic component at least includes: a second elastic component sleeved on the third rotating shaft; the third rotating shaft is also sleeved with: a cam and a concave wheel, the cam is provided with a convex portion, the concave wheel is provided with a flat portion, and at least one concave portion matching the convex portion; when the first structural member rotates, the third structural member and the concave wheel rotate relative to the first rotating shaft, and the cam slides relative to the first rotating shaft; when the convex portion of the cam matches the at least one concave portion, the deformation of the second elastic component changes to the first deformation; when the convex portion of the cam contacts the flat portion, the deformation of the second elastic component changes to the second deformation. Thus, by providing torque for the rotation of the third structural member and the fourth structural member through the third elastic member, the matching position of the cam and the concave wheel can be used as the flattening position or folding position of the flexible screen, which can provide a holding force for the folding or flattening of the flexible screen.

[0014] In an optional implementation, the third elastic component is a disc spring or a spring washer.

[0015] In an optional implementation, the rotating mechanism further includes: an elastic component, the rotating shaft includes: a first rotating shaft and a second rotating shaft; the first rotating shaft and the second rotating shaft are connected through a transmission structure; the third structural component is connected to the first end of the transmission structure; the fourth structural component is connected to the second end of the transmission structure; when the third structural component drives the first end of the transmission structure to rotate around the first rotating shaft, the second end of the transmission structure drives the fourth structural component to rotate around the second rotating shaft; or when the fourth structural component drives the second end of the transmission structure to rotate around the second rotating shaft, the first end of the transmission structure drives the third structural component to rotate around the first rotating shaft; when the third structural component and the fourth structural component are in a folded state or an unfolded state, the deformation of the elastic component changes to a first deformation; when the third structural component and the fourth structural component are between a folded state and an unfolded state, the deformation of the elastic component changes to a second deformation; the deformation amount of the second deformation is greater than the deformation amount of the first deformation. Thus, while realizing the synchronous movement of the third structural component and the fourth structural component, a torque is provided for the rotation of the third structural component and the fourth structural component.

[0016] In an optional implementation, the rotating mechanism further includes: a fifth structural member; the fifth structural member is arranged on the first slide slot; the transmission structure includes: a first gear sleeved on the first rotating shaft, and a second gear sleeved on the second rotating shaft; the first gear and the second gear are meshed; the elastic component includes: a first elastic component sleeved on the fifth structural member; a first cam sleeved on the first rotating shaft; the fifth structural member contacts the surface of the first cam; when the first structural member rotates, the first cam is stationary relative to the first rotating shaft; the fifth structural member rotates along the surface of the first cam and around the first rotating shaft. Thus, multiple rotating members share one rotating shaft, and the coupled structural members occupy very little space, which is conducive to the miniaturization of the rotating mechanism.

[0017] In an optional implementation, the rotating shaft also includes: a guiding inner shaft and a guiding outer shaft, and the guiding outer shaft cover is arranged on the guiding inner shaft; wherein, the length of the guiding inner shaft is smaller than the length of the guiding outer shaft, and the first end of the guiding outer shaft in the length direction extends along the length direction relative to the first end of the guiding inner shaft in the length direction, and the first rotating shaft and the second rotating shaft are arranged between the first end of the guiding inner shaft in the length direction and the first end of the guiding outer shaft in the length direction. Thus, the first rotating shaft and the second rotating shaft are arranged in the guiding outer shaft, which can protect the first rotating shaft and the second rotating shaft.

[0018] In an optional implementation, the outer side surface of the guide inner shaft and the inner side surface of the guide outer shaft are arranged to form a slideway; a first rotating member is provided on the side of the first structural member close to the rotating shaft, and a second rotating member is provided on the side of the second structural member close to the rotating shaft, and both the first rotating member and the second rotating member are located in the slideway; when the first structural member rotates, the first rotating member and the second rotating member rotate around the guide inner shaft. In this way, the first structural member and the second structural member can rotate coaxially.

[0019] In an optional implementation, the third structural member is sleeved with a first support portion, the first support portion is provided with a first guide rod, and the first slide groove is provided with a first guide rail matching the first guide rod; the fourth structural member is sleeved with a second support portion, the second support portion is provided with a second guide rod, and the second slide groove is provided with a second guide rail matching the second guide rod; when the first structural member and / or the second structural member rotates around the rotating shaft, the first guide rod slides along the first guide rail, and the second guide rod slides along the second guide rail. In this way, the sliding connection between the third structural member and the first structural member is achieved, and the sliding connection between the fourth structural member and the second structural member is achieved at the same time, which reduces the pulling force on the flexible screen during the rotation of the first structural member and the second structural member, and improves the flatness of the flexible screen.

[0020] In an optional implementation, the first structural member includes: a first blade and a third blade, the first blade is provided with a first groove, and the third blade is provided with a first slider matching the first groove; the second structural member includes: a second blade and a fourth blade, the second blade is provided with a second groove, and the fourth blade is provided with a second slider matching the second groove; when the first structural member and the second structural member rotate around the rotating shaft, the first slider slides in the first groove, and the second slider slides in the second groove. In this way, the sliding connection between the first blade and the third blade is realized, and the sliding connection between the second blade and the fourth blade is realized at the same time, which further reduces the pulling force on the flexible screen during the rotation of the first structural member and the second structural member, and improves the flatness of the flexible screen.

[0021] In a second aspect of the embodiment of the present application, a foldable display terminal is provided, comprising: a flexible screen, and the above-mentioned rotating mechanism, wherein the first area of ​​the flexible screen is connected to the first structural member; the second area of ​​the flexible display screen is connected to the second structural member; the third area of ​​the flexible display screen is connected to the rotating shaft; wherein the third area is located between the first area and the second area. As a result, the foldable display terminal using the above-mentioned rotating mechanism is subjected to less pulling force, thereby improving the flatness of the flexible screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a foldable display terminal in the prior art;

[0023] Figure 1a for Figure 1 The middle foldable terminal usage status diagram is displayed;

[0024] Figure 1b for Figure 1 A diagram showing a folded state of the foldable display terminal;

[0025] Figure 1c for Figure 1 The middle folding shows the expanded state diagram of the terminal;

[0026] Figure 2 A schematic diagram of a three-dimensional structure of a rotating mechanism provided in an embodiment of the present application;

[0027] Figure 2a for Figure 2 The structural diagram of the rotating mechanism;

[0028] Figure 2b A schematic diagram of the structure of a foldable display terminal in a folded state;

[0029] Figure 2cIt is a structural schematic diagram of a foldable display terminal in an unfolded state;

[0030] Figure 3 A schematic diagram of the structure of another foldable display terminal provided in an embodiment of the present application;

[0031] Figure 3a for Figure 3 A schematic diagram of the structure of the foldable display terminal in a folded state;

[0032] Figure 3b for Figure 3 A schematic diagram of the structure of the foldable display terminal in an unfolded state;

[0033] Figure 4 A schematic diagram of the structure of another rotating mechanism provided in an embodiment of the present application;

[0034] Figure 5 A schematic diagram of the structure of another foldable display terminal provided in an embodiment of the present application;

[0035] Figure 5a for Figure 5 MM section view in;

[0036] Figure 6 for Figure 5 Schematic diagram of the structure of the connector;

[0037] Figure 7a for Figure 5 A schematic structural diagram of a first rotating shaft;

[0038] Figure 7b for Figure 5 A schematic structural diagram of another first rotating shaft;

[0039] Figure 8 for Figure 5 Working state diagram of the rotating mechanism;

[0040] Fig. 9 A schematic diagram of the structure of another rotating mechanism provided in an embodiment of the present application;

[0041] Fig.10 for Fig. 9 Schematic diagram of the structure of the transfer shaft;

[0042] Fig.11 for Fig.10 Diagram of the matching state of the concave wheel and the cam;

[0043] Fig.12 A schematic diagram of the structure of another rotating mechanism provided in an embodiment of the present application;

[0044] Fig.13 for Fig.12A disassembled structural diagram of the rotating mechanism;

[0045] Fig.14 for Fig.12 A schematic diagram of the structure of the rotating shaft;

[0046] Fig.15 for Fig.12 Another disassembled structural diagram of the rotating mechanism;

[0047] Fig.16 for Fig.12 Another structural schematic diagram of the rotating shaft;

[0048] Fig.17 for Fig.12 AA section view in;

[0049] Fig.17a for Fig.17 Folding state diagram of the rotating mechanism in FIG.

[0050] Fig.18 for Fig.12 BB section view in;

[0051] Fig.18a for Fig.18 Folding state diagram of the rotating mechanism in FIG.

[0052] Fig.19 for Fig.12 Schematic diagram of the structure of the transfer shaft;

[0053] Fig.19a for Fig.12 Schematic diagram of the disassembled structure of the transfer shaft;

[0054] Fig. 20 A schematic diagram of the structure of another rotating mechanism provided in an embodiment of the present application;

[0055] Fig.20a Fig. 20 Another structural schematic diagram of the rotating mechanism;

[0056] Fig.21 for Fig.20a CC section view of the middle rotating mechanism;

[0057] Fig. 22 A schematic diagram of the structure of another rotating mechanism provided in an embodiment of the present application;

[0058] Fig.23 for Fig. 22 DD section view of the middle rotating mechanism;

[0059] Fig.24 for Fig.23 The structural diagram of the middle cam;

[0060] Fig.25 A schematic diagram of the structure of another rotating mechanism provided in an embodiment of the present application;

[0061] Fig.26 for Fig.25 A partial structural diagram of the rotating mechanism;

[0062] Fig. 27 for Fig.25 Another partial structural schematic diagram of the rotating mechanism. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0064] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0065] In addition, in the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to the changes in the orientation of the components in the drawings.

[0066] The embodiment of the present application provides a foldable display terminal, which can be a product with a display interface such as a mobile phone, a display, a tablet computer, a car computer, etc. The embodiment of the present application does not impose any special restrictions on the specific form of the foldable display terminal.

[0067] In order to facilitate understanding of the foldable display terminal provided in the embodiment of the present application, Figure 1 , an existing foldable display terminal is introduced as follows:

[0068] like Figure 1 As shown, the foldable display terminal 01 includes a flexible screen 10. The flexible screen 10 may be an active matrix organic light emitting diode (AMOLED) display screen.

[0069] As a self-luminous display, the AMOLED display screen does not need a backlight module (BLM). Therefore, when the base substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable property.

[0070] In addition, if Figure 1 As shown, the foldable display terminal 01 also includes a rotating mechanism 20 for carrying the flexible screen 10 .

[0071] The rotating mechanism 20 includes a first structure 201 , a second structure 202 , and a rotating shaft 203 located between the first structure 201 and the second structure 202 .

[0072] The rotating shaft 203 is connected to the first structural member 201 and the second structural member 202. The first structural member 201 and the second structural member 202 can respectively rotate around the rotating shaft 203. The first structural member 201 and the second structural member 202 can be a housing or a middle frame structure of an electronic device.

[0073] Among them, the first structural member 201 and the second structural member 202 can be used to support the flexible screen 10, so that the flexible screen 10 can be kept as flat as possible during use, and the non-display surface of the flexible screen 10 is protected.

[0074] A part of the flexible screen 10 is fixed to the first structural member 201 through the adhesive layer 30, a part is fixed to the second structural member 202 through the adhesive layer 30, and a part is fixed to the rotating shaft 203 through the adhesive layer 30. The adhesive layer 30 can be a thin film layer formed after coating with glue, and the embodiment of the present application does not limit the specific form of the adhesive layer 30. In addition, other electronic components, such as cameras, headphones, receivers, buttons, batteries, etc., can be arranged on the first structural member 201 and the second structural member 202. The embodiment of the present application does not limit other electronic components arranged on the first structural member 201 and the second structural member 202.

[0075] The first structural member 201 and the second structural member 202 can rotate along the axis OO of the rotating shaft 203 respectively, thereby driving the flexible screen 10 to fold or unfold. Figure 1a As shown, the flexible screen can be bent and flattened, wherein: Figure 1a It is the flattening process of the flexible screen from 180° to 0°, or the folding process from 0° to 180°.

[0076] like Figure 1bAs shown, when the angle α between the first structural member 201 and the second structural member 202 is 0°, the flexible screen 10 is in a folded state.

[0077] Or, if Figure 1c As shown, when the angle α between the first structural member 201 and the second structural member 202 increases to 180°, the flexible screen 10 is in an unfolded state.

[0078] However, when the first structural member 201 and the second structural member 202 do not have bending properties, the area on the flexible screen 10 that is connected to the first structural member 201, the second structural member 202, and the rotating shaft 203 through the adhesive layer 30 will be subjected to pulling force when folded and unfolded, affecting the flatness of the flexible screen.

[0079] To this end, an embodiment of the present application provides an improved rotation mechanism.

[0080] In order to reduce the pulling force on the flexible screen during the rotation of the first structural member and the second structural member, as Figure 2 , Figure 2a As shown, the rotating mechanism further includes a third structural member 204 and a fourth structural member 214. The first structural member 201 is provided with a first sliding groove 2011, and the second structural member 202 is provided with a second sliding groove 2021.

[0081] The third structural member 204 and the fourth structural member 214 may be rotating members of a columnar structure, and the cross-sections of the third structural member 204 and the fourth structural member 214 may be circular or polygonal, and the embodiment of the present application does not limit the cross-sectional shapes of the third structural member and the fourth structural member. The first end of the third structural member 204 is rotatably connected to the rotating shaft 203, and the second end is Figure 2 As shown, it can be inserted into the first slide groove 2011 and slidably connected with the first slide groove 2011. When the first structure 201 rotates around the axis OO of the rotating shaft 203, the first structure 201 can slide a preset distance relative to the third structure 204 in a direction close to or away from the rotating shaft 203.

[0082] Similarly, the first end of the fourth structural member 214 is rotatably connected to the rotating shaft 203, and the second end can extend into the second sliding groove 2021 and be slidably connected to the second sliding groove 2021. When the second structural member 202 rotates around the axis OO of the rotating shaft 203, the second structural member 202 can slide in a direction close to or away from the rotating shaft 203 relative to the fourth structural member 214.

[0083] The embodiment of the present application does not limit the connection method between the third structural member 204 and the first slide groove 2011 and the connection method between the fourth structural member 214 and the second slide groove 2021, and only needs to realize sliding connection.

[0084] In one implementation of the present application, Figure 2 As shown, a first support portion 2044 is provided at the end of the second end of the third structural member 204, and a first guide rod 2045 is also provided on the first support portion 2044. The axis of the first guide rod 2045 is perpendicular to the axis direction of the third structural member 204, and first guide rails 2014 matching the first guide rod 2045 are provided on both sides of the first slide groove 2011. When the first structural member 201 rotates, the first guide rod 2045 can slide along the first guide rail 2014.

[0085] Similarly, a second support portion 2144 is provided at the end of the second end of the fourth structural member 214, and a second guide rod 2145 is provided on the second support portion 2144. The axis of the second guide rod 2145 is perpendicular to the axis direction of the fourth structural member 214, and second guide rails 2024 matching the second guide rod 2145 are provided on both sides of the second slide groove 2021. When the second structural member 202 rotates, the second guide rod 2145 can slide along the second guide rail 2024.

[0086] For example, Figure 2b As shown, when the first structural member 201 and / or the second structural member 202 rotates around the rotating shaft 203 so that the angle α between the first structural member 201 and the second structural member 202 is less than 180°, the flexible screen 10 is folded.

[0087] During the folding process of the flexible screen 10, the first structural member 201 slides relative to the third structural member 204 in a direction close to the rotation axis 203, and the second structural member 202 slides relative to the fourth structural member 214 in a direction close to the rotation axis 203. Thus, the first structural member 201 can slide relative to the third structural member 204, and the second structural member 202 can slide relative to the fourth structural member 214, which can release part of the bending force, reduce the pulling force on the flexible screen, and avoid excessive pulling force on the flexible screen during the bending process.

[0088] Or, if Figure 2c As shown, when the first structural member 201 and / or the second structural member 202 rotates around the rotating shaft 203 so that the angle α between the first structural member 201 and the second structural member 202 increases to 180°, the flexible screen 10 is in an unfolded state.

[0089] During the unfolding process of the flexible screen 10, the first structural member 201 slides relative to the third structural member 204 in a direction away from the rotation axis 203; the second structural member 202 slides relative to the fourth structural member 214 in a direction away from the rotation axis 203. Thus, the first structural member 201 can slide relative to the third structural member 204, and the second structural member 202 can slide relative to the fourth structural member 214, which can release part of the stretching force, reduce the pulling force on the flexible screen, and avoid excessive pulling force on the flexible screen during the stretching process.

[0090] The rotating mechanism provided in the embodiment of the present application, wherein the third structural member is slidably connected to the first structural member, and the fourth structural member is slidably connected to the second structural member, reduces the pulling force of the first structural member, the second structural member and the rotating shaft on the flexible screen, and improves the flatness of the flexible screen.

[0091] In another implementation of this application, please refer to Figure 3 , Figure 3a , Figure 3b The first structural member 201 includes: a first blade 2010 and a third blade 2019 arranged in sequence in a direction away from the rotating shaft 203, and the second structural member 202 includes: a second blade 2020 and a fourth blade 2029 arranged in sequence in a direction away from the rotating shaft 203. A part of the flexible screen 10 is fixed to the third blade 2019 through the adhesive layer 30, a part is fixed to the fourth blade 2029 through the adhesive layer 30, and a part is fixed to the rotating shaft 203 through the adhesive layer 30. For example, a first groove 2018 is further provided on the first blade, and a first slider 20191 matching the first groove 2018 is provided on the third blade 2019 near the first groove 2018.

[0092] The first slider 20191 extends into the first groove 2018 and is slidably connected to the first groove 2018. When the first structure 201 rotates around the axis OO of the rotating shaft 203, the third blade 2019 can slide a preset distance relative to the first blade 2010 in a direction close to or away from the rotating shaft 203.

[0093] Similarly, a second groove 2028 is provided on the second blade 2020 , and a second sliding block 20291 matching the second groove 2028 is provided at a position of the fourth blade 2029 close to the second groove 2028 .

[0094] The second sliding block 20291 extends into the second groove 2028 and is slidably connected to the second groove 2028. When the second structural member 202 rotates around the axis OO of the rotating shaft 203, the fourth blade 2029 can slide a preset distance relative to the second blade 2020 in a direction close to or away from the rotating shaft 203.

[0095] For example, Figure 3a As shown, when the first structural member 201 and / or the second structural member 202 rotates around the rotating shaft 203 so that the angle α between the first structural member 201 and the second structural member 202 is 0°, the flexible screen is folded.

[0096] During the folding process of the flexible screen, the third blade drives the first slider 20191 to slide in the first groove 2018 of the first blade 2010 in a direction close to the rotation axis 203, and the fourth blade 2029 drives the second slider 20291 to slide in the second groove 2028 of the second blade 2020 in a direction close to the rotation axis 203. In this way, part of the bending force can be released, reducing the pulling force on the flexible screen, and avoiding excessive pulling force on the flexible screen during the bending process.

[0097] Or, if Figure 3b As shown, when the first structural member 201 and / or the second structural member 202 rotates around the rotating shaft 203 so that the angle α between the first structural member 201 and the second structural member 202 increases to 180°, the flexible screen is in an unfolded state.

[0098] During the unfolding process of the flexible screen, the third blade 2019 drives the first slider 20191 to slide in the first groove 2018 of the first blade 2010 in a direction away from the rotation axis 203; the fourth blade 2029 drives the second slider 20291 to slide in the second groove 2028 of the second blade 2020 in a direction away from the rotation axis 203. In this way, part of the stretching force can be released, reducing the pulling force on the flexible screen, and avoiding excessive pulling force on the flexible screen during the stretching process.

[0099] The rotating mechanism provided in the embodiment of the present application is slidingly connected between the first blade and the third blade, and the second blade and the fourth blade, thereby further reducing the pulling force of the third blade, the fourth blade and the rotating shaft on the flexible screen and improving the flatness of the flexible screen.

[0100] In another implementation of the present application, Figure 4 As shown, the rotating mechanism includes: a rotating shaft 203 , a first structural member 201 , a second structural member 202 , a third structural member 204 and a fourth structural member 214 .

[0101] The first structural member 201 includes: a first blade 2010 and a third blade 2019 arranged in sequence along a direction away from the rotation axis 203 ; the second structural member 202 includes: a second blade 2020 and a fourth blade 2029 arranged in sequence along a direction away from the rotation axis 203 .

[0102] The first blade 2010 is provided with a first slide groove 2011 . One end of the third structural member 204 is connected to the rotating shaft 203 , and the other end extends into the first slide groove 2011 and is slidably connected to the first slide groove 2011 .

[0103] The first blade 2010 is also provided with a first groove near the third blade 2019 (not shown in the figure, but can be referred to Figure 3b 2018), the third blade 2019 is provided with a first slider 20191 matching the first groove, the first slider 20191 extends into the first groove and is slidably connected with the first groove.

[0104] The structures of the second structural member 202 and the fourth structural member 214 may refer to the description of the first structural member 201 and the third structural member 204 , and will not be described in detail herein.

[0105] Therefore, the third structural member 204 is slidingly connected to the first slide groove 2011, and the first slider 20191 is slidingly connected to the first groove. By setting two groups of sliding connection components, the pulling force of the first structural member and the second structural member on the flexible screen during rotation is further reduced, thereby improving the flatness of the flexible screen.

[0106] The embodiment of the present application does not limit the specific structure of the rotating mechanism. In one implementation of the present application, Figure 4 As shown, the rotating mechanism includes: two rotating shafts 203 arranged in sequence along the axial direction, and a first structural member 201 and a second structural member 202 located on both sides of the rotating shaft 203 .

[0107] The first structural member 201 includes: two first blades 2010 and one third blade 2019 .

[0108] Each rotating shaft 203 is connected to a first blade 2010 and at least one third structural member 204 , and each first blade 2010 is provided with a first sliding groove 2011 , and the third structural member 204 is slidably connected to the first sliding groove 2011 .

[0109] Each first blade 2010 is further provided with a first groove at one end close to the third blade 2019 , and the third blade 2019 is provided with two first sliders 20191 matching the first groove, and the first groove is slidably connected to the sliders 20191 .

[0110] The specific structure of the second structural member 202 may refer to the description of the first structural member 201 , which will not be described again.

[0111] The embodiment of the present application also provides a rotation mechanism. Figure 5 A schematic diagram of the structure of another foldable display terminal provided in an embodiment of the present application. Figure 5a for Figure 5 MM section view in. Figure 5 , Figure 5a As shown, the rotating mechanism includes: a first structural member 201, a second structural member 202, a third structural member 204, a fourth structural member 214, and a rotating shaft. The rotating shaft includes: a first rotating shaft 2031 and a second rotating shaft 2032. The specific structures of the first structural member 201, the second structural member 202, the first rotating shaft 2031 and the second rotating shaft 2032 can be referred to above, and will not be repeated here.

[0112] In one implementation of the present application, Figure 5 , Figure 5a As shown, the first structural member 201 includes: a first blade 2010 and a third blade 2019 arranged in sequence along a direction away from the rotation axis 203 , and the second structural member 202 includes: a second blade 2020 and a fourth blade 2029 arranged in sequence along a direction away from the rotation axis 203 .

[0113] For example, a first groove 2018 is further provided on the first blade 2010 , and a first sliding block 20191 matching the first groove is provided at a position of the third blade 2019 close to the first groove 2018 .

[0114] The first sliding block 20191 extends into the first groove 2018 and is slidably connected to the first groove 2018 .

[0115] Similarly, a second groove 2028 is provided on the second blade 2020 , and a second sliding block 20291 matching the second groove 2028 is provided at a position of the fourth blade 2029 close to the second groove 2028 .

[0116] The second sliding block 20291 extends into the second groove 2028 and is slidably connected to the second groove 2028 .

[0117] Therefore, by slidingly connecting the first blade and the third blade and slidingly connecting the second blade and the fourth blade, the pulling force of the first structural member, the second structural member and the rotating shaft on the flexible screen is reduced, thereby improving the flatness of the flexible screen.

[0118] Next reference Figure 5 , Figure 5a, the rotating mechanism further includes: a connector 205. The connector 205 may be a C-type card. For ease of description, the embodiment of the present application takes a C-type card as an example to illustrate the connection relationship between the connector 205 and the rotating shaft, and the C-type card does not constitute a limitation on the structural form of the connector 205. The first rotating shaft 2031 is connected to the second rotating shaft 2032 through the connector 205.

[0119] For example, Figure 6 for Figure 5 The structural diagram of the connector is as follows: Figure 6 As shown, the connector 205 at least includes: a first C-type card 2051, wherein the first C-type card 2051 is sleeved on the first rotating shaft 2031, when the first structural member 201 rotates, the first C-type card 2051 does not move, and the first rotating shaft 2031 rotates inside the first C-type card 2051.

[0120] During the rotation of the first rotating shaft 2031, the first C-type card 2051 will produce a first deformation or a second deformation, wherein the deformation of the second deformation is greater than the deformation of the first deformation. When the first rotating shaft rotates to a specific angle range, the first C-type card 2051 changes from the second deformation to the first deformation, and the energy released can provide torque for the first rotating shaft 2031, drive the first rotating shaft 2031 to rotate, and then drive the third structural member 204 and the first structural member 201 to rotate accordingly, thereby realizing the automatic flattening and folding of the flexible screen. In addition, when the deformation of the first C-type card 2051 changes to the first deformation, it can provide a holding force for the third structural member 204 and the first structural member 201. Figure 6 , Figure 7a , Figure 7b and Figure 8 Provide explanation.

[0121] like Figure 6 As shown, one side of the first C-type card 2051 is open, and the inner side thereof has a first plane 20511, a first curved surface 20512, and a first recessed portion 20531 opposite to the opening.

[0122] The distance from the first plane 20511 to the center of the first C-type card is L1, and the distance from the first curved surface 20512 to the center of the first C-type card is equal to L2, wherein the distance from the first recessed portion 20531 to the center of the first C-type card is greater than L2.

[0123] Figure 7a for Figure 5 A schematic diagram of the structure of a first rotating shaft, such as Figure 7aAs shown, the first rotating shaft 2031 is a cylindrical structure, wherein the surface of the first rotating shaft 2031 for contacting the C-type card includes: a third plane 20311 and a fifth plane 20312 matching the first plane 20511, and a second curved surface 20313 matching the first curved surface 20512.

[0124] The present application does not impose any restriction on the relative position relationship between the third plane 20311 and the fifth plane 20312. It only requires that when the first rotating shaft 2031 is rotated to a preset position in the first C-type card, the third plane 20311 can cooperate with the first plane of the first C-type card, and at the same time, the fifth plane 20312 can cooperate with the first recess or opening of the first C-type card.

[0125] In one implementation of the present application, Figure 7a As shown, the third plane 20311 and the fifth plane 20312 are arranged opposite to each other.

[0126] In another implementation of the present application, Figure 7b As shown, the angle between the third plane 20311 and the fifth plane 20312 can be 90°. The distance between the fifth plane 20312 and the axis of the first rotating shaft 2031, and the distance between the third plane 20311 and the axis of the first rotating shaft 2031 are both R1, R1 = L1; the radius of the second curved surface 20313 of the first rotating shaft 2031 is R2, R2 = L2.

[0127] like Figure 8 As shown, the first plane 20511 of the first C-type card 2051 is in contact with the third plane 20311 of the first rotating shaft 2031, and the fifth plane 20312 of the first rotating shaft 2031 is located in the first recessed portion 20531 of the connecting portion, the distance R1 between the third plane 20311 and the axis of the first rotating shaft is equal to the distance L1 from the first plane 20511 to the center of the first C-type card, and the distance R1 between the fifth plane 20312 and the axis of the first rotating shaft is smaller than the distance from the first recessed portion 20531 to the center of the first C-type card. At this time, each position inside the first C-type card is subjected to uniform force, and the deformation of the first C-type card 2051 is the first deformation.

[0128] It is understandable that Figure 8Starting from the state shown in , when the first structural member 201 drives the first rotating shaft 2031 to rotate in a clockwise direction or a counterclockwise direction, the third plane 20311 of the first rotating shaft leaves the first plane 20511 of the first C-type card, the fifth plane 20312 of the first rotating shaft leaves the first recessed portion of the first C-type card, the second curved surface 20313 of the first rotating shaft 2031 contacts the first plane 20511 of the first C-type card, the radius R2 at the second curved surface 20313 of the first rotating shaft 2031 is greater than the distance L1 from the first plane 20511 to the center of the first C-type card, the second curved surface 20313 of the first rotating shaft 2031 generates a thrust on the first plane 20511 of the first C-type card, and the deformation of the first C-type card 2051 is changed to the second deformation.

[0129] Thus, the position where the C-type card generates the first deformation can be used as the flattening position or folding position of the flexible screen, which can provide a holding force for the folding or flattening of the flexible screen. Moreover, when the first rotating shaft rotates to a specific angle range, for example, when the fifth plane 20312 begins to contact the first plane 20511, even without an external force, the torque provided by the energy released by the C-type card can drive the first rotating shaft to rotate, driving the first structural member to rotate accordingly, thereby realizing the automatic flattening and folding of the flexible screen and improving the user experience.

[0130] Exemplarily, when the first structural member 201 and the second structural member 202 are in a folded state or an unfolded state, the angle between the first structural member 201 and the second structural member 202 is, for example, 0° or 180°, and the third plane 20311 or the fifth plane 20312 cooperates with the first plane 20511. At this time, the deformation of the first C-type card is the first deformation.

[0131] When the first structural member 201 and the second structural member 202 are in a folded state or an unfolded state, the angle between the first structural member 201 and the second structural member 202 is between 0° and 180°, and the second curved surface 20313 of the first rotating shaft 2031 is in contact with the first plane 20511. At this time, the deformation of the first C-type card is the second deformation.

[0132] Thus, when the first C-type card changes from the second deformation to the first deformation, the first C-type card rebounds and releases energy, providing torque for the rotation of the first structural member. Thus, when the rotating mechanism is closed, a closing force can be provided to make the folding process easier; appropriate resistance can be provided in the initial stage of the rotating mechanism from folding to flattening to prevent the flexible screen from unfolding too quickly; appropriate assistance can be provided when the rotating mechanism is flattened to a specific angle to achieve automatic flattening; and flattening retention force can be provided after unfolding.

[0133] In another implementation of the present application, the connector 205 also includes: a second C-type card 2052 with an opening direction opposite to that of the first C-type card 2051, the second C-type card 2052 is sleeved on the second rotating shaft 2032, and the first C-type card 2051 is connected to the second C-type card 2052 via a connecting portion 2053.

[0134] Therefore, when the first structure 201 rotates, the first C-type card 2051 does not move, and the first shaft 2031 rotates in the first C-type card 2051. When the second structure 202 rotates, the second C-type card 2052 does not move, and the second shaft 2032 rotates in the second C-type card 2052.

[0135] Among them, the structure and working process of the second C-type card 2052 can refer to the description of the first C-type card 2051 mentioned above, and the structure and working process of the second shaft 2032 can refer to the description of the first shaft 2031 mentioned above, which will not be repeated here.

[0136] The rotating mechanism provided in the embodiment of the present application can provide torque for the rotation of the first rotating shaft and the second rotating shaft by setting a C-shaped card. The first rotating shaft and the second rotating shaft can transmit the torque to the first structural member and the second structural member through the third structural member and the fourth structural member, and finally act on the flexible screen to provide a holding force for the folding or flattening of the flexible screen.

[0137] The embodiment of the present application also provides a rotation mechanism. Fig. 9 This is a schematic diagram of another rotating mechanism provided in an embodiment of the present application. Fig. 9 As shown, the rotating mechanism includes: a first structure member 201 , a second structure member 202 , a third structure member 204 , a fourth structure member 214 and a rotating shaft 203 .

[0138] The first structural member 201 is provided with a first sliding groove 2011 , and the second structural member 202 is provided with a second sliding groove 2021 .

[0139] The first end of the third structural member 204 is rotatably connected to the rotating shaft 203, and the second end is Figure 2 As shown, it can extend into the first sliding groove 2011 and be slidably connected with the first sliding groove 2011.

[0140] The first end of the fourth structural member 214 is rotatably connected to the rotating shaft 203 , and the second end can extend into the second sliding groove 2021 and be slidably connected to the second sliding groove 2021 .

[0141] The sliding connection structure between the third structural member 204 and the first slide groove 2011, and the sliding connection structure between the fourth structural member 214 and the second slide groove 2021 can be referred to in Figure 2The description will not be repeated here.

[0142] There are two rotating shafts 203, which are arranged in sequence from top to bottom, and each rotating shaft is connected to a third structural member 204 and a fourth structural member 214. There are one first structural member 201 and one second structural member 202, and each first structural member 201 is provided with two first slide grooves 2011, and each second structural member 202 is provided with two second slide grooves 2021. Each third structural member corresponds to one first slide groove 2011, and each fourth structural member 214 corresponds to one second slide groove 2021.

[0143] Fig.10 for Fig. 9 The schematic diagram of the structure of the transfer shaft. Fig.10 As shown, the rotating shaft 203 includes: a third rotating shaft 2030, on which: a nut 2033, a third structural member 204, a first elastic member 2034, a flat washer 2035, a cam 2036, a concave wheel 2037, and a fourth structural member 214 are sequentially sleeved.

[0144] The first elastic component 2034 is, for example, a disc spring.

[0145] The mating surfaces of the third rotating shaft 2030 and the fourth structural member 214 , and the mating surfaces of the third rotating shaft 2030 and the concave wheel 2037 are all smooth cylindrical surfaces, so that the fourth structural member 214 and the concave wheel 2037 can rotate around the third rotating shaft 2030 .

[0146] The mating surfaces of the third rotating shaft 2030 and the cam 2036, the mating surfaces of the third rotating shaft 2030 and the flat washer 2035, the mating surfaces of the third rotating shaft 2030 and the first elastic component 2034, and the mating surfaces of the third rotating shaft 2030 and the third structural member 204 are all smooth prismatic surfaces, so that the cam 2036 can only slide along the axial direction of the third rotating shaft 2030 to compress or release the first elastic component 2034 and the flat washer 2035. At the same time, the first structural member 201 can drive the third rotating shaft 2030 to rotate when it rotates.

[0147] The nut 2033 is fixedly connected to the end of the third rotating shaft 2030, and the nut is used to restrict the third structural member 204, the first elastic member 2034, the flat washer 2035, the cam 2036, the cam 2037, and the fourth structural member 214 on the rotating shaft to prevent the third structural member 204, the first elastic member 2034, the flat washer 2035, the cam 2036, the cam 2037, and the fourth structural member 214 from falling out during use.

[0148] The concave wheel 2037 is provided with a protrusion 20373, and the fourth structural member 214 is provided with a recess 20374 matching the protrusion. During operation, the protrusion 20373 is inserted into the recess 20374, and when the fourth structural member 214 rotates around the third rotating shaft 2030, the concave wheel 2037 can rotate accordingly.

[0149] The cam 2036 is provided with a convex portion 20361 , and the concave wheel 2037 is provided with a flat portion 20375 , and a first concave portion 20371 and a second concave portion 20372 matching the convex portion 20361 .

[0150] During the rotation of the third rotating shaft 2030 , the convex portion 20361 on the cam 2036 rotates into the first concave portion 20371 and the second concave portion 20372 on the cam wheel 2037 , and the first elastic component 2034 is deformed into the first deformation.

[0151] As the third rotating shaft 2030 continues to rotate, the protrusion 20361 on the cam 2036 rotates out from the first recess 20371 and the second recess 20372 on the cam wheel 2037 and contacts the planar portion 20375 , and the deformation of the first elastic component 2034 changes to the second deformation.

[0152] The deformation amount of the second deformation is greater than the deformation amount of the first deformation.

[0153] When the first elastic component 2034 recovers from the second deformation to the first deformation, the energy released can provide torque for the third rotating shaft 3020, drive the third rotating shaft 2030 to rotate, and then drive the third structural member 204 and the first structural member 201 to rotate accordingly, thereby realizing the automatic flattening and folding of the flexible screen. In addition, when the convex portion 20361 on the cam 2036 is located in the first concave portion 20371 and the second concave portion 20372 on the concave wheel 2037, a holding force can be provided for the third structural member 204 and the first structural member 201.

[0154] Combine the following Fig.11 Provide explanation.

[0155] like Fig.11 As shown, the convex portion 20361 of the cam 2036 cooperates with the first concave portion 20371 of the cam wheel 2037, and at this time, the first elastic component 2034 generates a first deformation.

[0156] It can be understood that when the fourth structural member 214 rotates around the third rotating shaft 2030, the cam 2037 rotates accordingly, and the convex portion 20361 of the cam 2036 gradually rotates out from the first concave portion 20371 or the second concave portion 20372 and contacts the planar portion 20375, so that the cam 2036 slides along the third rotating shaft 2030 in a direction away from the cam 2037, and the first elastic component 2034 produces a second deformation.

[0157] Alternatively, when the third structural member 204 rotates, the third rotating shaft 2030 rotates accordingly, driving the convex portion of the cam 2036 to gradually rotate out of the first concave portion 20371 or the second concave portion 20372 of the cam 2037, thereby causing the cam 2036 to slide along the third rotating shaft 2030 in a direction away from the cam 2037, and the first elastic component 2034 produces a second deformation.

[0158] When the fourth structural member 214 continues to rotate around the third rotating shaft 2030, or the third structural member 204 continues to rotate to drive the third rotating shaft 2030 to rotate, until the concave portion of the cam wheel rotates to the position where the convex portion of the cam wheel is located again, at this time, the first elastic component 2034 and the flat washer rebound and release energy, providing torque to the rotating shaft, so that the cam wheel returns to the concave portion of the cam wheel under the action of the spring, and the first elastic component 2034 generates a first deformation.

[0159] The matching position of the cam and the concave wheel can be used as the flattened position or the folded position of the flexible screen, which can provide a holding force for the folding or flattening of the flexible screen.

[0160] Exemplarily, when the third structural member 204 and the fourth structural member 214 are in a folded state or an unfolded state, the angle between the third structural member 204 and the fourth structural member 214 is, for example, 0° or 180°, the convex portion of the cam matches the at least one concave portion, and the deformation of the first elastic component is the first deformation;

[0161] When the third structural member 204 and the fourth structural member 214 are between a folded state and an unfolded state, the angle between the third structural member 204 and the fourth structural member 214 is between 0 degrees and 180 degrees, the convex portion of the cam contacts the planar portion, and the deformation of the first elastic component is the second deformation.

[0162] Thus, when the first elastic component 2034 recovers from the second deformation to the first deformation, the first elastic component rebounds and releases energy, providing torque to the third structural component and the fourth structural component, so that a closing force can be provided when the rotating mechanism is closed, making the folding process easier. In the initial stage of the rotating mechanism from folding to flattening, the first elastic component 2034 firstly changes from the first deformation to the second deformation, providing appropriate resistance to the third structural component and the fourth structural component to prevent the flexible screen from unfolding too quickly; when the rotating mechanism is flattened to a specific angle, the first elastic component 2034 then recovers from the second deformation to the first deformation, providing appropriate assistance to the third structural component and the fourth structural component to achieve automatic flattening; after unfolding, the first elastic component 2034 is in the first deformation, which can provide a flattening retention force for the third structural component and the fourth structural component.

[0163] The rotating mechanism provided in the embodiment of the present application can provide torque for the rotation of the third rotating shaft by setting an elastic component, a concave wheel and a cam. The third rotating shaft can transfer the torque to the first structural member and the second structural member through the third structural member and the fourth structural member, and finally act on the flexible screen to provide a retaining force for the folding or flattening of the flexible screen.

[0164] Moreover, when the cam and the concave wheel move to a specific angle range, for example, when the cam begins to enter the concave wheel, no external force is required at this position to drive the third structural member or the fourth structural member to rotate, thereby achieving automatic flattening or automatic folding of the flexible screen and improving the user experience.

[0165] The embodiment of the present application also provides a rotation mechanism. Fig.12 This is a schematic diagram of another rotating mechanism provided in an embodiment of the present application. Fig.12 As shown, the rotating mechanism includes a first structure member 201 , a second structure member 202 and a rotating shaft 203 located between the first structure member 201 and the second structure member 202 .

[0166] The first structural member 201 includes: a first blade 2010 and a third blade 2019 arranged in sequence along a direction away from the rotation axis 203 ; the second structural member 202 includes: a second blade 2020 and a fourth blade 2029 arranged in sequence along a direction away from the rotation axis 203 .

[0167] The sliding connection structure between the first blade 2010 and the third blade 2019 can be referred to Figure 3 , Figure 3a , Figure 3b The corresponding description will not be repeated here.

[0168] In addition, if Fig.13 , Fig.14As shown, the rotating shaft 203 includes: a guiding inner shaft 2038 and a guiding outer shaft 2039 , the guiding outer shaft 2039 is covered by the guiding inner shaft 2038 , and the guiding inner shaft 2038 can be fixedly connected to the guiding outer shaft 2039 by screws 2001 .

[0169] like Fig.15 , Fig.16 , Fig.17 , Fig.17a , Fig.18 , Fig.18a As shown, the outer diameter of the guiding inner shaft is, for example, smaller than the inner diameter of the guiding outer shaft, the guiding inner shaft 2038 is provided with an outer arc on the side facing the guiding outer shaft 2039, and the guiding outer shaft 2039 is provided with an inner arc on the side facing the guiding inner shaft 2038, the outer arc and the inner arc are arranged opposite to each other, and the inner arc and the outer arc are arranged to form an arc-shaped slideway 20380.

[0170] A first rotating member 2012 is provided on one side of the first structural member 201 close to the rotating shaft 203. The first rotating member 2012 is located in a slideway 20380 between the guiding inner shaft 2038 and the guiding outer shaft 2039. When the first structural member 201 rotates, the first rotating member 2012 rotates around the guiding inner shaft 2038 in the slideway.

[0171] Similarly, a second rotating member 2022 is provided on the side of the second structural member 202 close to the rotating shaft 203. The second rotating member 2022 is located in the slideway 20380 between the guiding inner shaft 2038 and the guiding outer shaft 2039. When the second structural member 202 rotates, the second rotating member 2022 rotates in the slideway 20380 accordingly.

[0172] The first rotating member 2012 and the second rotating member 2022 are arranged in sequence along the axis OO, and the first rotating member 2012 and the second rotating member 2022 share a common axis. Thus, the first structural member 201 and the second structural member 202 can rotate coaxially.

[0173] like Fig.19 , Fig.19a As shown, the rotating shaft 203 further includes: a first rotating shaft 2031 and a second rotating shaft 2032 .

[0174] The length of the inner guide shaft 2038 is smaller than the length of the outer guide shaft 2039, and the first end of the outer guide shaft 2039 in the length direction extends along the length direction relative to the first end of the inner guide shaft 2038 in the length direction, wherein the first end of the inner guide shaft 2038 in the length direction is close to the first end of the outer guide shaft 2039 in the length direction, or is flush with the first end of the outer guide shaft 2039 in the length direction. The first rotating shaft 2031 and the second rotating shaft 2032 are disposed between the first end of the inner guide shaft 2038 in the length direction and the first end of the outer guide shaft 2039 in the length direction.

[0175] A pressure cover 2004 is also provided at the opening of the guide outer shaft 2039 , and the pressure cover 2004 is used to fix the first rotating shaft 2031 and the second rotating shaft 2032 inside the guide outer shaft 2039 .

[0176] like Fig.19 As shown, the axis of the first rotating shaft 2031 is, for example, O'-O', and the first structural member 201 is rotatably connected to the first rotating shaft 2031 via the third structural member 204, so that the first structural member 201 can rotate around the axis O'-O'.

[0177] Similarly, the axis of the second rotating shaft 2032 is, for example, O"-O", and the second structural member 202 is rotatably connected to the second rotating shaft 2032 through the fourth structural member 214, and the second structural member 202 can rotate around the axis O"-O".

[0178] Among them, the axis OO of the flexible screen is different from the axis O'-O' of the first structural member and the axis O"-O" of the second structural member. During the rotation of the first and second structural members, it is easy to generate a large pulling force on the flexible screen, affecting the flatness of the flexible screen.

[0179] To this end, in one implementation of the present application, Fig. 20 , Fig.20a As shown, the guide outer shaft 2039 is provided with a first opening 2013 and a second opening 2023, the first end of the third structural member 204 is connected to the first rotating shaft 2031, the second end passes through the first opening 2013 and extends into the first slide groove 2011, and the end of the second end is provided with a first supporting portion 2044, the first supporting portion 2044 is also provided with a first guide rod 2045, the axis of the first guide rod 2045 is perpendicular to the axis direction of the third structural member 204, and first guide rails 2014 matching the first guide rod 2045 are provided on both sides of the first slide groove 2011, and when the first structural member 201 rotates, the first guide rod 2045 can slide along the first guide rails 2014.

[0180] Similarly, the first end of the fourth structural member 214 is connected to the second rotating shaft 2032, and the second end passes through the second opening 2023 and extends into the second slide groove 2021, and the end of the second end is provided with a second supporting portion 2144, and the second supporting portion 2144 is provided with a second guide rod 2145, and the axis of the second guide rod 2145 is perpendicular to the axis direction of the fourth structural member 214, and second guide rails 2024 matching the second guide rod 2145 are provided on both sides of the second slide groove 2021, and when the second structural member 202 rotates, the second guide rod 2145 can slide along the second guide rails 2024.

[0181] Therefore, the third structural member 204 is slidably connected to the first slide groove 2011, and the fourth structural member 214 is slidably connected to the second slide groove, which reduces the pulling force on the flexible screen during the rotation of the first structural member and the second structural member and improves the flatness of the flexible screen.

[0182] However, it is understandable that when the first structural member 201 and the second structural member 202 rotate asynchronously, for example, when the first structural member 201 rotates and the second structural member 202 does not move, the first structural member 201 and the second structural member 202 exert different pulling forces on the flexible screen, which can easily cause the flexible screen to shift to one side, affecting the stability of the connection between the flexible screen and the rotating mechanism.

[0183] like Fig. 20 , Fig.20a , Fig.21 As shown, the rotating mechanism further includes: a first gear 2041 and a second gear 2141. The first gear 2041 is sleeved on the first rotating shaft 2031, and the first gear 2041 is rotatably connected to the first rotating shaft 2031. One end of the third structural member 204 close to the first rotating shaft 2031 is connected to the first gear 2041.

[0184] Similarly, the second gear 2141 is sleeved on the second rotating shaft 2032, and the second gear 2141 is rotatably connected to the second rotating shaft 2032. One end of the fourth structural member 214 close to the second rotating shaft 2032 is connected to the second gear 2141.

[0185] The first gear 2041 and the second gear 2141 are arranged in parallel between the first rotating shaft 2031 and the second rotating shaft 2032, and the first gear 2041 and the second gear 2141 are meshed, so that when the first gear 2041 rotates, it can drive the second gear 2141 to rotate synchronously, or when the second gear 2141 rotates, it can drive the first gear 2041 to rotate synchronously.

[0186] The working process of the rotating mechanism is described below by taking the first structural member as an example. When the first structural member 201 rotates, the third structural member 204 and the first gear 2041 rotate around the first rotating shaft 2031 accordingly. At the same time, through the meshing action of the gears, the movement and power of the first gear 2041 can be transmitted to the second gear 2141, so that the second gear 2141 obtains the rotation speed and torque, and then drives the fourth structural member 214 to rotate with the rotation of the second gear 2141, and drives the second structural member 202 to rotate. In this way, the synchronous movement of the first structural member 201 and the second structural member 202 is achieved, and the stability of the connection between the flexible screen and the rotating mechanism is improved.

[0187] It can be understood that the third structural member 204 acts on the first structural member 201, and the fourth structural member 214 acts on the second structural member 202. During the rotation process, the meshing action of the gears can transmit torque during the unfolding and folding process of the rotating mechanism.

[0188] The rotating mechanism provided in the embodiment of the present application can transmit torque for the unfolding and folding of the rotating mechanism through the meshing action of gears, thereby realizing the synchronous movement of the first structural member and the second structural member, and further realizing the synchronization of the flexible screens on both sides of the rotating shaft.

[0189] At the same time, since the rotating part is directly connected to the gear, the length of the lever arm is approximately the radius of the rotating shaft plus the length of the rotating part. In the above two embodiments, torque is provided by the C-type card and the cam respectively, and the length of the lever arm is approximately the radius of the rotating shaft. Compared with the above-mentioned C-type card and cam structure, the lever arm is longer and the torque is greater, which can better transmit torque for the expansion and folding of the rotating mechanism.

[0190] like Fig. 22 , Fig.23 , Fig.24 As shown, in another implementation of the present application, the rotating mechanism at least includes: a first structural member 201, a second structural member 202, a third structural member 204, a fourth structural member 214 and a rotating shaft 203. The rotating shaft 203 includes: a guiding inner shaft, a guiding outer shaft, a first rotating shaft 2031, and a second rotating shaft 2032. The specific structures of the first structural member 201, the second structural member 202, the third structural member 204, the fourth structural member 214, the guiding inner shaft 2038, the guiding outer shaft 2039, the first rotating shaft 2031, and the second rotating shaft 2032 can refer to the above embodiment, and will not be repeated here.

[0191] The first rotating shaft 2031 is sleeved with a first cam 2042, the second rotating shaft 2032 is sleeved with a second cam 2142, and the first cam 2042 can be fixedly connected to the second cam 2142. When the first structural member 201 and the second structural member 202 rotate, the first rotating shaft 2031, the second rotating shaft 2032, the first cam 2042 and the second cam 2142 are stationary relative to the rotation axis.

[0192] A first moving member 2047 that can move along the first cam 2042 is disposed at one end of the third structural member 204 close to the first rotating shaft 2031 , wherein the first moving member 2047 and the third structural member 204 can be integrally formed.

[0193] Similarly, a second moving member 2147 capable of moving along the second cam 2142 is disposed at one end of the fourth structural member 214 close to the second rotating shaft 2032 , and the second moving member 2147 and the fourth structural member 214 may be integrally formed.

[0194] In addition, the third structural member 204 is sequentially sleeved with a second elastic member 2043, a first supporting portion 2044, and a first limiting portion (2044) for preventing the second elastic member 2043 and the first supporting portion 2044 from coming out in a direction close to the first structural member 201. Fig. 22 Not shown, please refer to Fig.26 2046), and a first guide rod 2045 is provided on the first support portion 2044, the axis of the first guide rod 2045 is perpendicular to the axis direction of the third structural member 204, and first guide rails 2014 matching the first guide rod 2045 are provided on both sides of the slide groove of the first structural member 201, when the first structural member 201 rotates, the first guide rod 2045 can slide along the first guide rails 2014.

[0195] The first elastic component 2034 may be a spring.

[0196] The working process of the rotating mechanism is described below by taking the first structural member 201 as an example. Since the radii of the first cam 2042 at different positions are different, for example, Fig.24 As shown, the first cam has a first surface 20421, a second surface 20422 and a third surface 20423. The first surface 20421 and the second surface 20422 are planes, the third surface 20423 is an arc surface, and the distances from the first surface 20421 and the second surface 20422 to the axis of the first rotating shaft 2031 are less than the radius at the third surface 20423. The angle between the first surface 20421 and the second surface 20422 can be 90 degrees.

[0197] When the first structural member 201 rotates, the third structural member 204 drives the first moving member 2047 to move along the surface of the first cam 2042. When the third structural member 204 and the fourth structural member 214 are in a folded state, the angle between the third structural member 204 and the fourth structural member 214 is 0 degrees, the first moving member 2047 contacts the first surface 20421, and the deformation of the second elastic member 2043 is the first deformation.

[0198] When the third structure member 204 and the fourth structure member 214 are in the unfolded state, and the angle between the third structure member 204 and the fourth structure member 214 is 180 degrees, the third structure member 204 contacts the second surface 20422, and the deformation of the second elastic component 2043 is the first deformation.

[0199] When the third structural member 204 and the fourth structural member 214 are between a folded state and an unfolded state, the angle between the third structural member 204 and the fourth structural member 214 is between 0 degrees and 180 degrees, the third structural member 204 contacts the third surface 20423, the deformation of the second elastic member 2043 changes to a second deformation, and the deformation amount of the second deformation is greater than the deformation amount of the first deformation.

[0200] Therefore, when the second elastic component 2043 recovers from the second deformation to the first deformation, the second elastic component rebounds and releases energy, providing torque to the third structural component, thereby providing closing force when the rotating mechanism is closed, making the folding process easier; in the initial stage from folding to flattening of the rotating mechanism, the second elastic component 2043 changes from the first deformation to the second deformation, providing appropriate resistance to the third structural component to prevent the flexible screen from unfolding too quickly; when the rotating mechanism is flattened to a specific angle, the second elastic component 2043 changes from the second deformation to the first deformation again, providing appropriate assistance to the third structural component to achieve automatic flattening; after unfolding, the second elastic component 2043 is in the first deformation, which can provide a flattening retention force for the third structural component.

[0201] Thus, the matching position of the first moving part 2047 and the first surface and the second surface of the first cam can be used as the flattened position or the folded position of the flexible screen, which can provide a holding force for the folding or flattening of the flexible screen.

[0202] In another implementation of the present application, the fourth structural member 214 is sequentially sleeved with a third elastic member 2143, a second support portion 2144, and a second limiting portion (2143) for preventing the third elastic member 2143 and the second support portion 2144 from coming out in a direction close to the second structural member 202. Fig. 22 Not shown, please refer to Fig.262146), and a second guide rod 2145 is provided on the second support portion 2144, the axis of the second guide rod 2145 is perpendicular to the axis direction of the fourth structural member 214, and second guide rails 2024 matching the second guide rod 2145 are provided on both sides of the slide groove of the second structural member 202, when the second structural member 202 rotates, the second guide rod 2145 slides along the second guide rails 2024.

[0203] The third elastic component 2143 may adopt the same structure as the second elastic component 2043, which will not be described in detail here. The working process of the second structural member 202 can refer to the description of the first structural member 201, which will not be described in detail here.

[0204] It can be understood that the third structural member 204 acts on the first structural member 201, and the fourth structural member 214 acts on the second structural member 202, and can provide torque for the unfolding and folding of the rotating mechanism during the rotation process.

[0205] The rotating mechanism provided in the embodiment of the present application can provide torque for the rotation of the first rotating shaft and the second rotating shaft through the cooperation of springs and cams. The first rotating shaft can transfer the torque to the first structural member through the third structural member, and the second rotating shaft can transfer the torque to the second structural member through the fourth structural member, and finally act on the flexible screen to provide holding force for the folding or flattening of the flexible screen.

[0206] The embodiment of the present application does not limit the type and number of structures for providing torque. Each rotating mechanism can be provided with one or more structures for providing torque to provide sufficient torque for the unfolding and folding of the rotating mechanism.

[0207] In another implementation of the present application, the rotating mechanism includes three groups of structures for providing torque. Fig.25 , Fig.26 , Fig. 27 As shown, the rotating mechanism includes: a first structure member 201 , a second structure member 202 , a rotating shaft 203 , a third structure member 204 , a fourth structure member 214 , a fifth structure member 206 , a sixth structure member 216 , a seventh structure member 208 and an eighth structure member 218 .

[0208] The rotating shaft 203 includes: a guiding inner shaft, a guiding outer shaft, a first rotating shaft 2031, and a second rotating shaft 2032. The specific structures of the first structural member 201, the second structural member 202, the third structural member 204, the fourth structural member 214, the guiding inner shaft 2038, the guiding outer shaft 2039, the first rotating shaft 2031, and the second rotating shaft 2032 can refer to the above embodiment, and will not be repeated here.

[0209] The third structure member 204 , the fourth structure member 214 , the fifth structure member 206 , the sixth structure member 216 , the seventh structure member 208 , and the eighth structure member 218 may adopt the same structure, for example.

[0210] The third structure member 204 , the fifth structure member 206 and the seventh structure member 208 may be arranged in parallel in the first slide groove 2011 .

[0211] Similarly, the fourth structure member 214 , the sixth structure member 216 and the eighth structure member 218 may be arranged in parallel in the second slide groove 2021 .

[0212] The first rotating shaft 2031 is sleeved with a first gear 2041, and the first gear 2041 is rotatably connected to the first rotating shaft 2031. One end of the third structural member 204 close to the first rotating shaft 2031 is connected to the first gear 2041.

[0213] Similarly, the second rotating shaft 2032 is sleeved with a second gear 2141, and the second gear 2141 is rotatably connected to the second rotating shaft 2032. One end of the fourth structural member 214 close to the second rotating shaft 2032 is connected to the second gear 2141. The second gear 2141 is meshed with the first gear 2041.

[0214] The first rotating shaft 2031 is also sleeved with a first cam 2042, and the end of the fifth structural member 206 close to the first rotating shaft 2031 is provided with a first moving member 2047 that moves along the first cam 2042. The first moving member 2047 and the fifth structural member 206 can be integrally formed. The first moving member 2047 is sleeved on the third structural member 204 and the seventh structural member 208 at the same time, so that the third structural member 204, the fifth structural member 206 and the seventh structural member 208 can rotate synchronously.

[0215] The second rotating shaft 2032 is also sleeved with a second cam 2142, wherein the first cam 2042 is fixedly connected to the second cam 2142. The end of the sixth structural member 216 close to the second rotating shaft 2032 is provided with a second moving member 2147 that moves along the second cam 2142, and the second moving member 2147 and the sixth structural member 216 can be integrally formed. The second moving member 2147 is sleeved on the fourth structural member 214 and the eighth structural member 218 at the same time, so that the fourth structural member 214, the sixth structural member 216 and the eighth structural member 218 can rotate synchronously.

[0216] The first rotating shaft 2031 is sleeved with a third gear 2081, and the third gear 2081 is rotatably connected to the first rotating shaft 2031. One end of the seventh structural member 208 close to the first rotating shaft 2031 is connected to the third gear 2081.

[0217] Similarly, the second rotating shaft 2032 is sleeved with a fourth gear 2181, and the fourth gear 2181 is rotatably connected to the second rotating shaft 2032. One end of the eighth structural member 218 close to the second rotating shaft 2032 is connected to the fourth gear 2181, and the fourth gear 2181 is meshed with the third gear 2081.

[0218] A first gasket 2002 and a second gasket 2003 for controlling the axis distance between the first rotating shaft 2031 and the second rotating shaft 2032 are further disposed at both ends of the first rotating shaft 2031 and the second rotating shaft 2032 .

[0219] Among them, the third structural member 204, the fifth structural member 206 and the seventh structural member 208 are sequentially sleeved with a second elastic member 2043, a first supporting portion 2044 that can slide along the third structural member 204, the fifth structural member 206 and the seventh structural member 208 at the same time, and a first limiting portion 2046 for preventing the second elastic member 2043 and the first supporting portion 2044 from falling out, and a first guide rod 2045 is provided on the first supporting portion 2044, and a first guide rail 2014 matching the first guide rod 2045 is provided in the sliding groove of the first structural member 201, and when the first structural member 201 rotates, the first guide rod 2045 slides along the first guide rail 2014.

[0220] In another implementation of the present application, the fourth structural member 214, the sixth structural member 216 and the eighth structural member 218 are sequentially sleeved with a third elastic member 2143, a second support portion 2144 that can slide along the fourth structural member 214, the sixth structural member 216 and the eighth structural member 218 at the same time, and a second limiting portion 2146 for preventing the third elastic member 2143 and the second support portion 2144 from falling out, and a second guide rod 2145 is provided on the second support portion 2144, and a second guide rail 2024 matching the second guide rod 2145 is provided in the slide groove of the second structural member 202, and when the second structural member 202 rotates, the second guide rod 2145 slides along the first guide rail 2014.

[0221] The working process of the rotating mechanism is described below by taking the first structural member 201 as an example. When the first structural member 201 rotates, the third structural member 204 and the first gear 2041 rotate around the first rotating shaft 2031 accordingly. Through the meshing action of the gears, the movement and power of the first gear 2041 can be transmitted to the second gear 2141, so that the second gear 2141 obtains a rotation speed and torque, and drives the fourth structural member 214 to rotate; the seventh structural member 208 drives the third gear 2081 to rotate around the first rotating shaft 2031, and through the meshing action of the gears, the movement and power of the third gear 2081 are transmitted to the fourth gear 2181, so that the fourth gear 2181 obtains a rotation speed and torque, drives the eighth structural member 218 to rotate, and then drives the second structural member 202 to rotate. In this way, the synchronous movement of the first structural member 201 and the second structural member 202 is achieved. At the same time, during the rotation process, the meshing action of the gears can transmit torque during the unfolding and folding process of the rotating mechanism.

[0222] At the same time, when the first structural member 201 rotates, the sixth structural member 216 drives the first moving member 2047 to move along the first cam 2042. When the first moving member 2047 moves to the first surface or the second surface of the first cam, the deformation of the second elastic member 2043 changes to the first deformation. When the first moving member 2047 moves to the third surface of the first cam, the deformation of the second elastic member 2043 changes to the second deformation. The deformation amount of the second deformation is greater than the deformation amount of the first deformation. When the second elastic member 2043 recovers from the second deformation to the first deformation, it can rebound and release energy to provide torque for the rotating mechanism.

[0223] The working process of the second structural member 202 may refer to the description of the first structural member 201 , which will not be described again here.

[0224] The rotating mechanism provided in the embodiment of the present application can realize the synchronous rotation of the rotating parts on both sides of the rotating shaft through the meshing action of the gears, avoid the deviation of the flexible screen caused by the rotation of only one side of the rotating part, and improve the stability of the connection between the flexible screen and the rotating mechanism. At the same time, under the meshing action of the gears, and the joint action of the cam and the spring, a closing force can be provided when the rotating mechanism is closed, making the folding process easier; appropriate resistance can be provided in the initial stage of the rotating mechanism from folding to flattening to prevent the flexible screen from unfolding too quickly; appropriate assistance can be provided when the rotating mechanism is flattened to a specific angle to achieve automatic flattening; and flattening retention force can be provided after unfolding.

[0225] In addition, the arrangement of the rotating parts is perpendicular to the axis of the rotating shaft, the lever arm is longer, the torque is greater, and sufficient torque can be provided for the unfolding and folding of the rotating mechanism. At the same time, multiple rotating parts share one rotating shaft, and the coupled structural parts occupy very little space, which is conducive to the miniaturization of the rotating mechanism.

[0226] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A rotating mechanism, characterized in that: The rotating mechanism is used to carry the flexible screen, and the rotating mechanism includes: Rotating shaft; A first structural member, wherein the first structural member is provided with a first sliding groove; A second structural member, wherein the second structural member is provided with a second sliding groove; a third structural member, wherein a first end of the third structural member is connected to the rotating shaft, and a second end of the third structural member is disposed in the first sliding groove; a fourth structural member, wherein a first end of the fourth structural member is connected to the rotating shaft, and a second end of the fourth structural member is disposed in the second sliding groove; When the first structural member and the second structural member rotate around the rotating shaft, the second end of the third structural member slides relative to the first sliding groove, so that the first structural member can slide relative to the third structural member in a direction close to or away from the rotating shaft; the second end of the fourth structural member slides relative to the second sliding groove, so that the second structural member can slide in a direction close to or away from the rotating shaft; The rotating mechanism further includes: a fifth structural member, and a first elastic member sleeved on the fifth structural member; the fifth structural member is arranged in the first sliding groove; the rotating shaft includes: a first rotating shaft and a second rotating shaft, and the first rotating shaft and the second rotating shaft are connected by a transmission structure; The first rotating shaft is sleeved with a first cam; The fifth structural member is in contact with the first cam surface; When the first structural member rotates, the first cam is stationary relative to the first rotating shaft; the fifth structural member rotates along the surface of the first cam and around the first rotating shaft; When the third structural member and the fourth structural member are in a folded state or an unfolded state, the deformation of the first elastic member is a first deformation; When the third structural member and the fourth structural member are between a folded state and an unfolded state, the deformation of the first elastic component is a second deformation; and the deformation amount of the second deformation is greater than the deformation amount of the first deformation.

2. The rotating mechanism according to claim 1, characterized in that: During the folding process of the flexible screen, the first structural member slides relative to the third structural member in a direction close to the rotating axis, and the second structural member slides relative to the fourth structural member in a direction close to the rotating axis; during the unfolding process of the flexible screen, the first structural member slides relative to the third structural member in a direction away from the rotating axis; the second structural member slides relative to the fourth structural member in a direction away from the rotating axis.

3. The rotating mechanism according to claim 1, characterized in that: The third structural member is connected to the first end of the transmission structure; The fourth structural member is connected to the second end of the transmission structure; When the third structural member drives the first end of the transmission structure to rotate around the first rotation axis, the second end of the transmission structure drives the fourth structural member to rotate around the second rotation axis; Alternatively, when the fourth structural member drives the second end of the transmission structure to rotate around the second rotation axis, the first end of the transmission structure drives the third structural member to rotate around the first rotation axis.

4. The rotating mechanism according to claim 3, characterized in that: The transmission structure comprises: a first gear sleeved on the first rotating shaft, and a second gear sleeved on the second rotating shaft, and the first gear is meshed with the second gear.

5. The rotating mechanism according to claim 1, characterized in that: The rotating mechanism further comprises: an elastic component, When the first structural member and the second structural member are in a folded state or an unfolded state, the deformation of the elastic component is a first deformation; When the first structural member and the second structural member are in a state between folding and unfolding, the deformation of the elastic component is a second deformation; The deformation amount of the second deformation is greater than the deformation amount of the first deformation.

6. The rotating mechanism according to claim 5, characterized in that: The elastic component at least includes: a first elastic component arranged on the third structural member; The first rotating shaft is sleeved with a first cam; The third structural member is in contact with the first cam surface; When the first structural member rotates, the first cam is stationary relative to the first rotating shaft; the third structural member rotates along the surface of the first cam and around the first rotating shaft; The first cam has a first surface, a second surface and a third surface; When the third structural member contacts the first surface or the second surface, the deformation of the first elastic member is the first deformation; When the third structure is in contact with the third surface, the deformation of the first elastic component is the second deformation.

7. The rotating mechanism according to claim 6, characterized in that: The first elastic component is a spring or a spring washer.

8. The rotating mechanism according to claim 5, characterized in that: The rotating shaft comprises: a first rotating shaft and a second rotating shaft, wherein the first rotating shaft and the second rotating shaft are connected; The elastic component at least includes: a first C-shaped card sleeved on the first rotating shaft; When the first structural member rotates, the first rotating shaft rotates relative to the first C-shaped card; The first C-shaped card has a first plane and a first curved surface on its inner side, and the first rotating shaft includes a third plane and a fifth plane matching the first plane, and a second curved surface matching the first curved surface; When the third plane or the fifth plane contacts the first plane, the second curved surface contacts the first curved surface, and the deformation of the first C-shaped card becomes the first deformation; When the second curved surface contacts the first flat surface, the deformation of the first C-shaped card is the second deformation.

9. The rotating mechanism according to any one of claims 3-4, 6-8, characterized in that: The rotating shaft further comprises: a guide inner shaft and a guide outer shaft, wherein the guide outer shaft cover is arranged on the guide inner shaft; In which, the length of the guide inner shaft is smaller than the length of the guide outer shaft, the first end of the guide outer shaft in the length direction extends along the length direction relative to the first end of the guide inner shaft in the length direction, and the first rotating shaft and the second rotating shaft are arranged between the first end of the guide inner shaft in the length direction and the first end of the guide outer shaft in the length direction.

10. The rotating mechanism according to claim 9, characterized in that: The outer side surface of the guide inner shaft and the inner side surface of the guide outer shaft are arranged to form a slideway; A first rotating member is disposed on the first structural member, a second rotating member is disposed on the second structural member, and both the first rotating member and the second rotating member are located in the slideway; When the first structural member and the second structural member rotate around the rotating shaft, the first rotating member and the second rotating member rotate around the guiding inner shaft in the slideway.

11. The rotating mechanism according to any one of claims 1 to 8 and 10, characterized in that: The first structural member comprises: a first blade and a third blade, the first blade is provided with a first groove, and the third blade is provided with a first sliding block matching the first groove; The second structural member comprises: a second blade and a fourth blade, the second blade is provided with a second groove, and the fourth blade is provided with a second sliding block matching the second groove; When the first structural member and the second structural member rotate around the rotating shaft, the first sliding block slides in the first groove, and the second sliding block slides in the second groove.

12. The rotating mechanism according to any one of claims 1 to 8 and 10, characterized in that: The third structural member is provided with a first guide rod, and the first slide groove is provided with a first guide rail matching the first guide rod; The fourth structural member is sleeved with a second support portion, the second support portion is provided with a second guide rod, and the second slide groove is provided with a second guide rail matching the second guide rod; When the first structural member and the second structural member rotate, the first guide rod slides along the first guide rail, and the second guide rod slides along the second guide rail.

13. A foldable display terminal, characterized in that: include: A flexible screen, and a rotating mechanism according to any one of claims 1 to 12, wherein the first area of ​​the flexible screen is connected to the first structural member; The second area of ​​the flexible screen is connected to the second structural member; The third area of ​​the flexible screen is connected to the rotating shaft; Wherein, the third area is located between the first area and the second area.

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