Electronic device and rotating shaft assembly

Abstract

An embodiment of the present application provides an electronic device and a rotating shaft assembly, which include a display screen and a rotating shaft assembly. The display screen includes a bending area, and the display screen can be bent through the bending area. The rotating shaft assembly includes a first support plate and a second support plate. The first support plate includes a first end facing the second support plate, and the second support plate includes a second end facing the first support plate. Wherein, when the display screen is in the unfolded state, the first end and the second end support the bending area, and when the display screen is in the folded state, the first end and the second end are spaced apart from the bending area. During the bending process of the display screen, both the first end and the second end move away from the display screen, and there is no hard object pressing against the lower part of the bending area, thereby providing an avoidance space for the bending area of the display screen. The bending area can be bent according to its own stress condition, and the bending angle of the bending area is relatively large. The relatively large bending angle makes the bending stress of the bending area relatively small and not easily broken.

Description

Technical Field

[0001] The present application relates to the field of electronic technologies, and particularly to an electronic device and a rotating shaft assembly. Background Art

[0002] The foldable screen terminal is one of the main directions for the future development of terminals. The display screen in the foldable screen terminal is a flexible display screen. Since the flexible display screen needs to be bendable, the substrate of the flexible display screen is a flexible substrate, and a support structure needs to be provided below the flexible display screen to support the flexible display screen. However, when the foldable screen terminal is an inward-foldable screen terminal, the support structure affects the bending of the flexible display screen during the bending process of the flexible display screen. Summary of the Invention

[0003] Embodiments of the present application provide an electronic device and a rotating shaft assembly, which can improve the influence of the first support plate and the second support plate on the bending area.

[0004] Embodiments of the present application provide an electronic device, which includes:

[0005] A display screen, the display screen includes a bending area, and the display screen can be bent through the bending area; and

[0006] A rotating shaft assembly, at least part of the rotating shaft assembly is disposed opposite to the bending area, the rotating shaft assembly includes a first support plate and a second support plate, the first support plate includes a first end facing the second support plate, and the second support plate includes a second end facing the first support plate;

[0007] Wherein, when the display screen is in the unfolded state, the display surfaces of the display screen are oppositely disposed, the first end and the second end support the bending area, and when the display screen is in the folded state, the first end and the second end are spaced apart from the bending area.

[0008] Embodiments of the present application further provide a rotating shaft assembly, which includes:

[0009] A base;

[0010] A first support plate rotatably connected to the base; and

[0011] A second support plate rotatably connected to the base, the second support plate and the first support plate are disposed on the same side of the base, and the second support plate includes a second end facing the first support plate;

[0012] Wherein, the first support plate includes a first end portion facing the second support plate, and when the first support plate and the second support plate rotate relatively close to each other, the first end portion and the second end portion move toward the base, and when the first support plate and the second support plate rotate relatively away from each other, the first end portion and the second end portion move in a direction away from the base.

[0013] In the embodiment of the present application, during the bending process of the display screen, the first end of the first support plate and the second end of the second support plate both move in the direction away from the display screen, and there is no hard object under the bending area to support it, thereby providing an escape space for the bending area of ​​the display screen. The bending area can bend according to its own stress conditions, and the bending angle of the bending area is larger, rather than being restricted by hard objects to cause a smaller bending angle. The larger bending angle reduces the bending stress of the bending area, and it is not easy to break. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0015] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same figure numbers represent the same parts in the following description.

[0016] Figure 1 A schematic diagram of the structure of an electronic device in an unfolded state provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1 Schematic diagram of the exploded structure of the electronic device shown.

[0018] Figure 3 for Figure 1 A schematic diagram of the structure of a rotating shaft assembly in an electronic device is shown.

[0019] Figure 4 for Figure 1 An enlarged schematic diagram of part A in the electronic device.

[0020] Figure 5 for Figure 1 A schematic structural diagram of a base and a first support plate in the electronic device shown.

[0021] Figure 6 A schematic diagram of the structure of an electronic device in a folded state provided in an embodiment of the present application.

[0022] Figure 7 forFigure 6 An enlarged schematic diagram of part B of the electronic device shown.

[0023] Figure 8 A schematic structural diagram of the first support plate and the base in the electronic device provided by the embodiment of the present application.

[0024] Figure 9 is Figure 8 An enlarged schematic diagram of part C of the electronic device shown. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0026] Please refer to Figure 1 and Figure 2 , Figure 1 which is a schematic structural diagram of the electronic device provided by the embodiment of the present application in the unfolded state. Figure 2 is Figure 1 a schematic exploded structural diagram of the electronic device shown. Figure 3 is Figure 1 a schematic structural diagram of the rotating shaft assembly in the electronic device shown. Figure 4 is Figure 1 an enlarged schematic diagram of part A in the electronic device. The embodiment of the present application provides an electronic device 10, and an electronic device 10 includes a display screen 20 and a rotating shaft assembly 40. The display screen 20 includes a bending area 240, and the display screen 20 can be bent through the bending area 240. The display screen 20 is a flexible display screen 20, and the substrate 461 of the display screen 20 is a flexible substrate 461, such as a polyimide film (PI) substrate 461. The display screen 20 further includes a first part 220 and a second part 260, and the first part 220 and the second part 260 are arranged on both sides of the bending area 240. The first part 220 and the second part 260 can be bent relative to the bending area 240. For example, when the display screen 20 is in the bent state, the first part 220 and the second part 260 are oppositely arranged. When the display screen 20 is in the unfolded state, the first part 220 and the second part 260 are substantially in the same plane. The first part 220, the bending area 240, and the second part 260 can jointly display an image.

[0027] The rotating shaft assembly 40 is disposed at least partially opposite to the bending region 240. The rotating shaft assembly 40 includes a first support plate 420 and a second support plate 440. The first support plate 420 and the second support plate 440 are used to support the display screen 20. The first support plate 420 includes a first end 422 facing the second support plate 440, and the second support plate 440 includes a second end 442 facing the first support plate 420.

[0028] Please refer to Figure 5 , Figure 5 which is Figure 1 a schematic structural diagram of the base and the first support plate in the electronic device shown. When the display screen 20 is in the unfolded state, the display surfaces of the display screen 20 are oppositely arranged, and the first end 422 and the second end 442 support the bending region 240. It can be understood that when the display screen 20 is in the unfolded state, the first end 422 and the second end 442 support the bending region 240. For example, the first end 422 and the second end 442 can directly abut against the non-display surface of the bending region 240 for support, or can support the non-display surface of the bending region 240 through a soft material (such as a foam layer, a silicone layer, etc.), so that the bending region 240 can be in a better flat state and is not easily bent unevenly. In addition, when the bending region 240 is pressed, the bending region 240 sinks downward, and the first end 422 and the second end 442 can support the bending region 240, allowing the user to normally press the bending region 240 to complete operations such as pressing and touching.

[0029] Please refer to Figure 6 and Figure 7 , Figure 6 which is a schematic structural diagram of the electronic device provided by the embodiment of the present application in the folded state. Figure 7 It is Figure 6The enlarged schematic diagram of the electronic device B is shown. When the display screen 20 is in the folded state, the display surface of the first part 220 and the display surface of the second part 260 of the display screen 20 are arranged opposite to each other, that is, the display screen 20 is an inner folding screen, and the first end 422 and the second end 442 are arranged at intervals from the bending area 240. It can also be understood that during the bending process of the display screen 20, the first end 422 of the first support plate 420 and the second end 442 of the second support plate 440 both move in a direction away from the display screen 20, that is, there is no support plate under the bending area 240 to support it. When there is no hard first end 422 and second end 442 under the bending area 240 to support it, the bending area 240 of the display screen 20 is provided with an escape space, and the bending area 240 can bend according to its own stress conditions, and the bending angle of the bending area 240 is large. The large bending angle makes the bending stress of the bending area 240 small, and it is not easy to break. If the bending area 240 is always supported by the first end 422 and the second end 442 during the process of being completed, the final bending angle of the bending area 240 is very small, the stress of the bending area 240 is large, and it is easy to break.

[0030] Among them, the first support plate 420 also includes a third end portion 424 arranged opposite to the first end portion 422, and the second support plate 440 also includes a fourth end portion 444 arranged opposite to the second end portion 442. When the display screen 20 is in an unfolded state, the third end portion 424 and the fourth end portion 444 support the display screen 20. When the display screen 20 is in a folded state, the distance between the first end portion 422 and the display screen 20 is greater than the distance between the third end portion 424 and the display screen 20, and the distance between the second end portion 442 and the display screen 20 is greater than the distance between the fourth end portion 444 and the display screen 20.

[0031] When the display screen 20 is in the unfolded state, the first support plate 420 and the second support plate 440 can be substantially parallel to the display screen 20, so as to support the display screen 20 well. When the display screen 20 is in the folded state, the first support plate 420 and the second support plate 440 can rotate relative to the display screen 20. One end of the first support plate 420 and the second support plate 440 close to the middle of the bending area 240 moves away from the display screen 20, and one end of the first support plate 420 and the second support plate 440 far from the middle of the bending area 240 does not move or moves very little, so that the distance between the first end 422 and the display screen 20 is greater than the distance between the third end 424 and the display screen 20, and the distance between the second end 442 and the display screen 20 is greater than the distance between the fourth end 444 and the display screen 20. It can be understood that when the display screen 20 is bent, mainly the middle part of the bending area 240 has the greatest demand for bending space. Therefore, the first support plate 420 and the second support plate 440 have the largest amount of movement at the position corresponding to the middle part of the bending area 240, that is, the largest avoidance space for the bending area 240, and can well accommodate the middle part of the bending area 240.

[0032] The rotating shaft assembly 40 may further include a base 460. The first support plate 420 and the second support plate 440 are arranged between the base 460 and the display screen 20. The first end 422 includes a first magnet 4222, the second end 442 includes a second magnet 4422, and the base 460 includes a third magnet 462 and a fourth magnet 464. When the display screen 20 is unfolded, the first magnet 4222 and the third magnet 462 cooperate, and the second magnet 4422 and the fourth magnet 464 cooperate to support the bending area 240 with the first end 422 and the third end 424. When the display screen 20 is folded, the first magnet 4222 and the third magnet 462 attract each other, and the second magnet 4422 and the fourth magnet 464 attract each other, so that the distance between the first end 422 and the display screen 20 is greater than the distance between the third end 424 and the display screen 20, and the distance between the second end 442 and the display screen 20 is greater than the distance between the fourth end 444 and the display screen 20.

[0033] During the folding process of the display screen 20, the third magnet 462 on the base 460 cooperates with the first magnet 4222 of the first support plate 420, and the fourth magnet 464 on the base 460 cooperates with the second magnet 4422 of the second support plate 440, so that the ends of the first support plate 420 and the second support plate 440 move away from the display screen 20. During the unfolding process of the display screen 20, the first support plate 420 and the second support plate 440 can also be pushed to move towards the display screen 20 through the cooperation between the magnets.

[0034] It should be noted that the length of the first magnet 4222 can be greater than the length of the third magnet 462, and the length of the second magnet 4422 can be greater than the length of the fourth magnet 464. During the folding or unfolding process of the display screen 20, the first magnet 4222 and the third magnet 462 slide relative to each other, and the second magnet 4422 and the fourth magnet 464 slide relative to each other.

[0035] During the folding process of the display screen 20, the first support plate 420 and the second support plate 440 move away from the base 460. The first support plate 420 and the second support plate 440 are magnetically connected to the base 460 through the magnets, rather than fixedly connected, so that the first support plate 420 and the second support plate 440 can move relative to the base 460, and the first end 422 of the first support plate 420 and the second end 442 of the second support plate 440 move away from or close to the bending area 240.

[0036] That is, when the display screen 20 is unfolded, the third end 424 and the third magnet 462 have a first distance, and when the display screen 20 is folded, the third end 424 and the third magnet 462 have a second distance, and the second distance is greater than the first distance.

[0037] It can be understood that the electronic device 10 further includes a first housing 60 and a second housing 80. The base 460 is disposed between the first housing 60 and the second housing 80. The rotating shaft assembly 40 further includes a first bracket 482 and a second bracket 484. One end of the first bracket 482 is rotatably connected to the base 460, and the other end of the first bracket 482 is connected to the first housing 60. One end of the second bracket 484 is rotatably connected to the base 460, and the other end of the second bracket 484 is connected to the second housing 80. The third end 424 of the first support plate 420 is rotatably connected to the first bracket 482, and the fourth end 444 of the second support plate 420 is rotatably connected to the second bracket 484.

[0038] The first bracket 482 and the second bracket 484 rotate relative to the base 460. The first bracket 482 and the second bracket 484 drive the first housing 60 and the second housing 80 to rotate respectively. During the rotation of the first bracket 482, the first magnet 4222 at the first end of the first support plate 420 is magnetically attracted to the third magnet 462 of the base 460, and the third end 424 of the first support plate 420 connected to the first bracket 482 rotates relative to the first bracket 482, so as to realize the rotation of the first support plate 420 relative to the display screen 20. It can be understood that during the folding process of the display screen 20, the first support plate 420 slowly separates from the folding screen, that is, during the folding process of the display screen 20, the first support plate 420 can still provide support for the display screen 20. Similarly, during the folding process of the display screen 20, the second support plate 440 can still provide support for the display screen 20.

[0039] The display screen 20 is mounted on the first shell 60 and the second shell 80. The two ends of the display screen 20 away from the bending area 240 are fixedly connected to the first shell 60 and the second shell 80 respectively, that is, when the first shell 60 and the second shell 80 rotate relative to the base 460, the display screen 20 will also be folded.

[0040] The base 460 is provided with a first gear set 486 and a second gear set 488, the first bracket 482 is rotatably connected to the base 460 via the first gear set 486, and the second bracket 484 is rotatably connected to the base 460 via the second gear set 488. It should be noted that the first housing 60 and the base 460 can be rotated by the first bracket 482 and the first gear set 486 alone, the second housing 80 and the base 460 can be rotated by the second bracket 484 and the second gear set 488 alone, or the first bracket 482 and the first gear set 486, the second bracket 484 and the second gear set 488 can be used to rotate the first housing 60, the second housing 80 and the base 460, so as to fold the display screen 20.

[0041] An arc-shaped first slide groove 4822 is provided at one end of the first bracket 482 away from the first gear set 486, and the third end 424 of the first support plate 420 includes a first slider 426, which is located in the first slide groove 4822, and the first slider 426 slides along the first slide groove 4822 to allow the first support plate 420 to rotate relative to the display screen 20; an arc-shaped second slide groove 4842 is provided at one end of the second bracket 484 away from the second gear set 488, and the fourth end 444 of the second support plate 420 includes a second slider 426, which is located in the second slide groove 4842, and the second slider 426 slides along the second slide groove 4842 to allow the second support plate 420 to rotate relative to the display screen 20.

[0042] A first gear set and a second gear set are arranged on the side of the base, and a side baffle plate can also be arranged on the outside of the base, i.e., on the side away from the first gear set and the second gear set, of the rotating shaft assembly. The side baffle plate can be fixedly connected to the side of the base to cooperate with the base to fix the first gear set and the second gear set, and can also be used to protect the side of the base.

[0043] The third end 424 of the first support plate 420 is rotated in the first slide groove 4822 of the first bracket 482 through the first slider 426, so as to realize the rotational connection between the third end 424 of the first support plate 420 and the end of the first bracket 482 away from the base 460. Similarly, the fourth end 444 of the second support plate 420 is rotated in the second slide groove 4842 of the second bracket 484 through the second slider 426, so as to realize the rotational connection between the fourth end 444 of the second support plate 420 and the end of the second bracket 484 away from the base 460.

[0044] When the display screen 20 is being displayed, the base 460 includes a substrate 461, a first side 466 and a second side 468 that protrude towards the display screen 20. The first side 466 and the second side 468 are arranged opposite to each other. A third magnet 462 is disposed at one end of the first side 466 facing the display screen 20, and a fourth magnet 464 is disposed at one end of the second side 468 facing the display screen 20.

[0045] The substrate 461 can be arc-shaped and convex towards the side away from the display screen 20, so as to provide an accommodation space for the bending area 240 of the display screen 20. The first side 466 and the second side 468 extend towards the display screen 20. When the display screen 20 is in the unfolded state, the first side 466 and the second side 468 are close to the display screen 20. The third magnet 462 on the first side 466 abuts against the first support plate 420 and is magnetically connected to the first magnet 4222 of the first bracket 482, and provides a supporting force for the flexible display area. Similarly, the fourth magnet 464 on the second side 468 abuts against the second support plate 420 and is magnetically connected to the second magnet 4422 of the second bracket 484, and provides a supporting force for the flexible display area. During the folding process of the display screen 20, the first housing 60 and the second housing 80 rotate around the base 460. The first housing 60 and the second housing 80 drive the display screen 20 to bend inward. The first side 466 and the second side 468 gradually move away from the display screen 20. The third magnet 462 on the first side 466 and the first magnet 4222 of the first support plate 420 are magnetically attracted to drive the first end 422 of the first support plate 420 to move away from the display screen 20. The third end 424 of the first support plate 420 away from the first magnet 4222 rotates. The first magnet 4222 of the first support plate 420 and the third magnet 462 on the first side 466 will also slide relative to each other, that is, the first bracket 482 moves along the direction from the first end 422 to the third end 424, so that during the process of the first end 422 moving away from the display screen 20, it will not interfere with the second support plate 420, and can also provide a larger avoidance space for the bending area 240. Similarly, the second support plate 420 has the same function as the first support plate 420.

[0046] Please refer to Figure 8 and Figure 9 , Figure 8 which is a schematic structural diagram of the first support plate and the base in the electronic device provided by the embodiment of the present application. Figure 9 It is Figure 8An enlarged schematic view of part C of the electronic device shown. Among them, the third magnet 462 can be rotatably arranged on the first side 466, and the fourth magnet 464 can be rotatably arranged on the second side 468. For example, both ends of the third magnet 462 have shaft holes, and the first side 466 is provided with shafts corresponding to the shaft holes, and the shafts are snapped into the shaft holes, and the third magnet 462 can rotate around the shafts. Another example is that both ends of the third magnet 462 have protruding shafts, and the first side 466 is provided with shaft holes corresponding to the shafts, and the shafts are snapped into the shaft holes, and the third magnet 462 can rotate around the shafts. Similarly, the fourth magnet 464 and the second side 468 can have the same structure as the third magnet 462 and the first side 466.

[0047] It can be understood that the structure in the embodiment of the present application can be axially symmetrically arranged based on the base, or can be radially symmetrically arranged based on the base.

[0048] It can be understood that the electronic device in the embodiment of the present application can be a mobile terminal such as a mobile phone or a tablet computer, and can also be a device with a bendable flexible display screen such as a game device, an Augmented Reality (AR) device, a Virtual Reality (VR) device, a data storage device, an audio playback device, a video playback device, a wearable device, etc. The wearable device can be a smart bracelet, smart glasses, a smart watch, smart decoration, etc.

[0049] The embodiment of the present application also provides a rotating shaft assembly. Please continue to refer to Figure 3 , the rotating shaft assembly 40 includes a base 460, a first support plate 420 and a second support plate 440. The first support plate 420 is rotatably connected to the base 460, and the second support plate 440 is rotatably connected to the base 460. The second support plate 440 and the first support plate 420 are arranged on the same side of the base 460. The first support plate 420 includes a first end 422 facing the second support plate 440, and the second support plate 440 includes a second end 442 facing the first support plate 420. Among them, when the first support plate 420 and the second support plate 440 rotate relatively closer, the first end 422 and the second end 442 move in the direction of the base 460, and when the first support plate 420 and the second support plate 440 rotate relatively away, the first end 422 and the second end 442 move away from the base 460.

[0050] The hinge assembly 40 can be used to support the flexible display screen. Specifically, when the display screen is in the unfolded state, the display surfaces of the display screen are arranged relative to each other. At this time, the first support plate 420 and the second support plate 440 rotate away from each other, and the first end 422 and the second end 442 move away from the base 460, so that the first end 422 and the second end 442 support the bending area of ​​the display screen. It can be understood that when the display screen is in the unfolded state, the first end 422 and the second end 442 support the bending area 240. When the bending area is pressed, the bending area is concave downward. The first end 422 and the second end 442 can support the bending area 240, allowing the user to press the bending area normally to complete operations such as pressing and touching.

[0051] When the display screen is in a folded state, the display surface of the first part of the display screen and the display surface of the second part are arranged oppositely, that is, the display screen is an inner folding screen. At this time, the first support plate 420 and the second support plate 440 are relatively close to each other and rotated, and the first end 422 and the second end 442 move toward the direction of the base 460, so that the first end 422 and the second end 442 are spaced from the bending area. It can also be understood that during the bending process of the display screen, the first end 422 of the first support plate 420 and the second end 442 of the second support plate 440 both move in the direction away from the display screen, that is, there is no support plate under the bending area. When there is no hard first end 422 and second end 442 under the bending area, the bending area of ​​the display screen is provided with an escape space, and the bending area can bend according to its own stress conditions. The bending angle of the bending area is large, and the large bending angle makes the bending stress of the bending area small, and it is not easy to break. If the bending area is always supported by the first end 422 and the second end 442 during the completion process, the bending angle of the final bending area is very small, the stress of the bending area is large, and it is easy to break.

[0052] It can be understood that the structure of the hinge assembly in the embodiment of the present application can adopt the structure of the hinge assembly in any of the above-mentioned embodiments, and the connection structure between the hinge assembly and the flexible display screen and the first shell and the second shell of the electronic device can refer to the structure of the electronic device in any of the above-mentioned embodiments, which will not be repeated here.

[0053] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0054] The communication device provided by the embodiments of the present application has been introduced in detail above. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those skilled in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. An electronic device, characterized in that, comprising: a display screen, the display screen including a bending area, and the display screen being capable of bending through the bending area; and a rotating shaft assembly, at least part of the rotating shaft assembly being disposed opposite to the bending area, the rotating shaft assembly including a first support plate and a second support plate, the first support plate including a first end portion facing the second support plate, the second support plate including a second end portion facing the first support plate, the first end portion including a first magnet, the second end portion including a second magnet, the first support plate further including a third end portion disposed opposite to the first end portion, and the second support plate further including a fourth end portion disposed opposite to the second end portion; a base, the first support plate and the second support plate being disposed between the base and the display screen, the base including a third magnet and a fourth magnet, the length of the first magnet being greater than the length of the third magnet, the length of the second magnet being greater than the length of the fourth magnet, and during the folding or unfolding process of the display screen, the first magnet and the third magnet slide relative to each other, and the second magnet and the fourth magnet slide relative to each other; wherein, the rotating shaft assembly further includes a first bracket and a second bracket, one end of the first bracket is rotatably connected to the base, one end of the second bracket is rotatably connected to the base, the third end portion of the first support plate is rotatably connected to the first bracket, and the fourth end portion of the second support plate is rotatably connected to the second bracket; when the display screen is in the unfolded state, the display surfaces of the display screen are disposed opposite to each other, the first magnet and the third magnet cooperate, and the second magnet and the fourth magnet cooperate to support the bending area by the first end portion and the second end portion; when the display screen is in the folded state, the first magnet and the third magnet attract each other, and the second magnet and the fourth magnet attract each other, so that the distance between the first end portion and the bending area is greater than the distance between the third end portion and the bending area, the distance between the second end portion and the bending area is greater than the distance between the fourth end portion and the bending area, and the first end portion and the second end portion are spaced apart from the bending area.

2. The electronic device according to claim 1, characterized in that, when the display screen is in the unfolded state, the third end portion and the fourth end portion support the display screen, and when the display screen is in the folded state, the distance between the first end portion and the display screen is greater than the distance between the third end portion and the display screen, and the distance between the second end portion and the display screen is greater than the distance between the fourth end portion and the display screen.

3. The electronic device according to claim 2, characterized in that, when the display screen is unfolded, the third end portion and the third magnet have a first distance, and when the display screen is folded, the third end portion and the third magnet have a second distance, and the second distance is greater than the first distance.

4. The electronic device according to any one of claims 2-3, characterized in that, The electronic device further includes a first housing and a second housing. The base is disposed between the first housing and the second housing. The other end of the first bracket is connected to the first housing, and the other end of the second bracket is connected to the second housing.

5. The electronic device according to claim 4, wherein, a first gear set and a second gear set are provided on the base. The first bracket is rotatably connected to the base through the first gear set, and the second bracket is rotatably connected to the base through the second gear set.

6. The electronic device according to claim 5, wherein, an arc-shaped first sliding groove is provided at one end of the first bracket away from the first gear set. The third end of the first support plate includes a first slider, and the first slider is located in the first sliding groove. The first slider slides along the first sliding groove to enable the first support plate to rotate relative to the display screen; an arc-shaped second sliding groove is provided at one end of the second bracket away from the second gear set. The fourth end of the second support plate includes a second slider, and the second slider is located in the second sliding groove. The second slider slides along the second sliding groove to enable the second support plate to rotate relative to the display screen.

7. The electronic device according to claim 4, wherein, when the display screen is displayed, the base includes a substrate and a first side edge and a second side edge protruding towards the display screen. The first side edge and the second side edge are oppositely arranged. The third magnet is disposed at one end of the first side edge facing the display screen, and the fourth magnet is disposed at one end of the second side edge facing the display screen.

8. The electronic device according to claim 7, wherein, the third magnet is rotatably disposed on the first side edge, and the fourth magnet is rotatably disposed on the second side edge.

9. A rotating shaft assembly, wherein, comprises: a base, including a third magnet and a fourth magnet; a first support plate, rotatably connected to the base; and a second support plate, rotatably connected to the base. The second support plate and the first support plate are disposed on the same side of the base. The first support plate includes a first end facing the second support plate, and the second support plate includes a second end facing the first support plate. The first end includes a first magnet, and the second end includes a second magnet. The first support plate further includes a third end opposite to the first end, and the second support plate further includes a fourth end opposite to the second end. The length of the first magnet is greater than the length of the third magnet, and the length of the second magnet is greater than the length of the fourth magnet. During the folding or unfolding process of the display screen, the first magnet and the third magnet slide relative to each other, and the second magnet and the fourth magnet slide relative to each other; wherein, the rotating shaft assembly further includes a first bracket and a second bracket. One end of the first bracket is rotatably connected to the base, and one end of the second bracket is rotatably connected to the base. The third end of the first support plate is rotatably connected to the first bracket, and the fourth end of the second support plate is rotatably connected to the second bracket; When the first support plate and the second support plate rotate relatively closer, the first magnet and the third magnet attract each other, and the second magnet and the fourth magnet attract each other, so that the first end portion and the second end portion move towards the base. When the first support plate and the second support plate rotate relatively away from each other, the first magnet and the third magnet cooperate, and the second magnet and the fourth magnet cooperate, so that the first end portion and the second end portion move away from the base.

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