Folding shell, electronic equipment and flexible screen unfolding or folding method

Abstract

The invention provides a folding shell which comprises a folding device and a frame body, the folding device comprises a gear assembly and a driving assembly, the gear assembly comprises a driving gear and a first driven gear meshed with the driving gear, and the driving assembly comprises a driving part used for driving the driving gear to rotate; the at least two frame bodies are arranged on the two opposite sides of the folding device respectively, the driving gear is arranged on one of the at least two frame bodies, the first driven gear is arranged on the other one of the at least two frame bodies, the driving part can drive the driving gear to rotate so as to drive the first driven gear to rotate, and the driving part can drive the first driven gear to rotate so as to drive the first driven gear to rotate. And the two frame bodies are automatically and mutually unfolded or automatically and mutually folded. A user can also fold or unfold the electronic equipment by holding the electronic equipment with one hand, so that the operation is convenient, and the user experience is improved. The invention further provides electronic equipment provided with the folding shell and a flexible screen unfolding or folding method.

Description

Technical Field

[0001] The present invention relates to the field of flexible screen folding, and in particular to a folding shell, an electronic device provided with the folding shell, and a flexible screen unfolding or folding method. Background Art

[0002] At present, foldable electronic products with bendable flexible displays are becoming more and more popular among people. The folding or unfolding of foldable electronic products in the prior art is generally achieved through a hinge. In order to achieve a hovering function of the foldable electronic product during the folding or unfolding process, the hinge is required to provide greater resistance during the folding or unfolding process; therefore, existing foldable electronic products usually require double operations by the user to achieve unfolding or folding, that is, the user cannot or is not convenient to unfold or fold the existing foldable electronic products with one hand. Summary of the invention

[0003] The present application provides a folding shell that can be automatically unfolded or folded, an electronic device provided with the folding shell, and a method for unfolding or folding a flexible screen of the electronic device.

[0004] The present application provides a folding shell, which includes a folding device and a frame, the folding device includes a gear assembly and a driving assembly, the gear assembly includes a driving gear and a first driven gear meshed with the driving gear, and the driving assembly includes a driving member for driving the driving gear to rotate; at least two of the frames are respectively arranged on opposite sides of the folding device, the driving gear is arranged in one of the at least two frames, and the first driven gear is arranged in the other of the at least two frames, and the driving member can drive the driving gear to rotate, so as to drive the first driven gear to rotate, so as to realize that the two frames automatically unfold or fold each other.

[0005] The present application also provides an electronic device, which includes a folding shell, a flexible screen, and a main board arranged on the folding shell, the flexible screen includes a bendable area facing the folding device and two non-bending areas connected to opposite sides of the bendable area, the two non-bending areas are respectively arranged on two adjacent frames, and the main board is electrically connected to the flexible screen and the driving parts of the folding shell.

[0006] The present application also provides a flexible screen unfolding or folding method, characterized in that, when applied to an electronic device, the method includes: detecting the state of the electronic device; when the electronic device is in a folded state, the mainboard receives an unfolding instruction and controls the driving member to drive the active gear to rotate in a first direction to drive the first driven gear to rotate synchronously to control the flexible screen of the electronic device to unfold from the folded state to the flattened state; when the electronic device is in the flattened state, the mainboard receives a folding instruction and controls the driving member to drive the active gear to rotate in a second direction to drive the first driven gear to rotate synchronously to control the flexible screen of the electronic device to fold from the flattened state to the folded state.

[0007] The two frames of the electronic device of the present application are respectively connected to the opposite sides of the folding device, the driving gear of the gear assembly is meshed with the first driven gear, the driving gear is connected to one of the two frames, and the first driven gear is connected to the other of the two frames; when the electronic device needs to be unfolded, the processor receives the unfolding instruction and controls the driving member to drive the driving gear to rotate to drive the first driven gear to rotate, so that the two frames move away from each other and unfold, realizing the automatic unfolding of the flexible screen; when the electronic device needs to be folded, the processor receives the folding instruction and controls the driving member to drive the driving gear to rotate to drive the first driven gear to rotate, so that the two frames move closer to each other and fold, realizing the automatic folding of the flexible screen. Since the electronic device of the present invention can realize automatic folding or automatic unfolding, the user can operate the folding or unfolding of the electronic device by holding the electronic device with one hand, which is convenient to operate and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the implementation mode will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 is a schematic diagram of a three-dimensional structure of an electronic device in one embodiment of the present application;

[0010] Figure 2 yes Figure 1 A schematic diagram of a three-dimensional structure of an electronic device from another perspective;

[0011] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the electronic device in FIG.

[0012] Figure 4 yes Figure 2 A schematic diagram of a further three-dimensional structure decomposition of the electronic device in FIG.

[0013] Figure 5 yes Figure 4 A magnified three-dimensional structure diagram of the folding device;

[0014] Figure 6 yes Figure 5 A schematic diagram of a three-dimensional structure decomposition of the folding device;

[0015] Figure 7 yes Figure 6 A further schematic diagram of the three-dimensional structure decomposition of the folding device;

[0016] Figure 8 yes Figure 7 A schematic diagram of the front structure of the drive assembly;

[0017] Fig. 9 is a structural block diagram of an electronic device provided by one of the exemplary embodiments of the present application;

[0018] Fig.10 is a flow chart of a method for unfolding and folding a flexible screen of an electronic device provided by one of the exemplary embodiments of the present application;

[0019] Fig.11 is a flow chart of a method for unfolding a flexible screen of an electronic device provided by one of the exemplary embodiments of the present application;

[0020] Fig.12 is a flow chart of a flexible screen folding method of an electronic device provided by one of the exemplary embodiments of the present application;

[0021] Fig.13 is a flow chart of a method for unfolding a flexible screen of an electronic device provided by another exemplary embodiment of the present application;

[0022] Fig.14 is a flow chart of a flexible screen folding method of an electronic device provided by another exemplary embodiment of the present application;

[0023] Fig.15 is a flowchart of a method for unfolding a flexible screen of an electronic device provided by another exemplary embodiment of the present application;

[0024] Fig.16 is a flow chart of a flexible screen folding method of an electronic device provided by another exemplary embodiment of the present application;

[0025] Fig.17 is a flow chart of a flexible screen folding method of an electronic device provided by another exemplary embodiment of the present application;

[0026] Fig.18 is a flowchart of a method for unfolding a flexible screen of an electronic device provided by another exemplary embodiment of the present application;

[0027] Fig.19 is a flow chart of a flexible screen folding method of an electronic device provided by another exemplary embodiment of the present application;

[0028] Fig. 20 is a schematic diagram of a graphical user interface of an electronic device provided by one embodiment of the present application;

[0029] Fig.21 It is a schematic diagram of the three-dimensional structure of a folding device in another embodiment of the present application.

[0030] Main markings:

[0031] 100. electronic device; 20. folding shell; 21. frame; 211. front; 212. back; 214. side; 215. end face; 216. mounting groove; 22. folding device; 23. gear assembly; 230. driving gear; 2301. shaft hole; 234. first shaft; 235. second shaft; 230. driving gear; 232. first driven gear; 236. second driven gear; 237. first connecting block; 238. second connecting block; 24. driving assembly; 240. driving member; 242. reduction gear set; 244. output gear; 245. output shaft; 26. back plate; 30. flexible screen; 31. bendable area; 33. non-bending area; 40. touch display screen; 50. motherboard; 52. processor; 54. memory. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In addition, the following descriptions of the various embodiments are made with reference to the attached drawings to illustrate specific embodiments that the present application may be implemented in. Directional terms mentioned in the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", etc., are only with reference to the directions of the attached drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the present application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] Please also read Figure 1-Figure 4 and Fig. 9 In one embodiment of the present invention, an electronic device 100 includes a folding housing 20, a flexible screen 30, a touch display screen 40, and a mainboard 50 disposed on the folding housing 20; the folding housing 20 includes a folding device 22 and a frame 21, the folding device 22 includes a gear assembly 23 and a driving assembly 24, the gear assembly 23 includes a driving gear 230 and a first driven gear 232 meshed with the driving gear 230, and the driving assembly 24 includes a driving member 240 for driving the driving gear 230 to rotate; two frames 21 are respectively disposed on opposite sides of the folding device 22, the driving gear 230 is disposed on at least one of the two frames 21, and the first driven gear 232 is disposed on At least one of the other two frames 21, the axis of the driving gear 230 is parallel to the axis of the first driven gear 232; the flexible screen 30 includes a bendable area 31 facing the front of the folding device 22 and two non-bending areas 33 connected to the opposite sides of the bendable area 31, and the two non-bending areas 33 are respectively arranged on two adjacent frames 21, specifically, the two non-bending areas 33 are respectively arranged on the front sides 211 of the two frames 21; the folding device 22 is used to support the bendable area 31 of the flexible screen 30, and the bendable area 31 of the flexible screen 30 can be bent or flattened with the folding device 22, and the bendable area 31 can be bent into a U-shape or a teardrop shape or other shapes. In this embodiment, the bendable area 31 can be bent into a teardrop shape. The mainboard 50 is electrically connected to the flexible screen 30 and the driving member 240. The mainboard 50 is provided with a processor 52 and a memory 54. The processor 52 can control the driving member 240 to drive the driving gear 230 to rotate, so as to drive the first driven gear 232 to rotate, so that the two frames 21 are automatically unfolded or folded with each other, and the electronic device 100 is automatically folded or unfolded. The flexible screen 30, the touch display screen 40 and the driving member 240 are electrically connected to the mainboard 50 respectively.

[0036] Specifically, the processor 52 may include one or more processing cores. The processor 52 uses various interfaces and lines to connect various parts within the electronic device 100, and executes various functions and processes data of the electronic device 100 by running or executing instructions, programs, code sets or instruction sets stored in the memory 54, and calling data stored in the memory 54. Optionally, the processor 52 can be implemented in at least one hardware form of digital signal processing, field programmable gate array, and programmable logic array. The processor 52 can integrate one or a combination of a central processing unit, an image processor, and a modem. Among them, the central processing unit mainly processes the operating system, user interface, and application programs; the image processor is responsible for rendering and drawing the content to be displayed on the touch display screen 40 and the flexible screen 30; the modem is used to process wireless communications. Optionally, the above-mentioned modem may not be integrated into the processor 52, and may be implemented separately by a chip.

[0037] The memory 54 may include a random access memory or a read-only memory. Optionally, the memory 54 includes a non-transitory computer-readable medium. The memory 54 may be used to store instructions, programs, codes, code sets, or instruction sets. The memory 54 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playback function, an image playback function, etc.), instructions for implementing the following various method embodiments, etc.; the data storage area may store data (such as audio data, a phone book), etc., created according to the use of the electronic device 100.

[0038] The touch display screen 40 is used to receive a touch operation on or near it using any suitable object such as a finger, a touch pen, etc., and to display the user interface of each application. Optionally, the flexible screen 30 can be a touch display screen.

[0039] In this embodiment, the front side refers to the side facing the same direction as the light emitting surface of the flexible screen 30, and the back side refers to the side facing away from the light emitting surface of the flexible screen 30. The electronic device 100 is, for example, but not limited to, a mobile phone, a tablet computer, a display, a liquid crystal panel, an OLED panel, a television, a smart watch, a VR head-mounted display, a car display, and any other product and component with a display function. The "connection" in the description of the embodiment of the present invention includes two situations: direct connection and indirect connection. For example, the connection between A and B includes A and B being directly connected or connected through a third element C or more other elements. The connection also includes two situations: integrated connection and non-integrated connection. The integrated connection means that A and B are formed and connected as one, and the non-integrated connection means that A and B are formed and connected as a non-integrated connection.

[0040] The unfolding or folding of the foldable electronic device in the prior art usually requires the user to use both hands to achieve it. The foldable electronic device has resistance during the unfolding or folding process. If the resistance is too small, the foldable electronic device will shake and the hovering function of the foldable electronic product during the folding or unfolding process cannot be achieved; if the resistance is too large, the force used to unfold or fold the foldable electronic device is large, and the wear of the hinge of the foldable electronic device will also increase. In some scenarios, one of the user's hands is occupied. At this time, the user cannot or is not convenient to unfold or fold the foldable electronic device with only the other hand. In response to the above-mentioned problem that the existing folding electronic devices cannot be unfolded or folded with one hand, the two frames 21 of the electronic device 100 of the present invention are respectively connected to the opposite sides of the folding device 22, and the driving gear 230 of the gear assembly 23 is meshed with the first driven gear 232, the driving gear 230 is connected to one of the two frames 21, and the first driven gear 232 is connected to the other of the two frames 21; when the electronic device 100 needs to be unfolded, the processor 52 receives the unfolding instruction and controls the driving member 240 to drive the driving gear 230 to rotate to drive the first driven gear 232 to rotate, so that the two frames 21 move away from each other and unfold, thereby realizing the automatic unfolding of the flexible screen 30; when the electronic device 100 needs to be folded, the processor 52 receives the folding instruction and controls the driving member 240 to drive the driving gear 230 to rotate to drive the first driven gear 232 to rotate, so that the two frames 21 move closer to each other and fold, thereby realizing the automatic folding of the flexible screen 30. Since the electronic device 100 of the present invention can be automatically folded or automatically unfolded, the user can fold or unfold the electronic device 100 by holding the electronic device 100 with one hand, which is convenient to operate and improves the user experience.

[0041] like Figure 4 As shown, the frame 21 includes a front face 211, a back face 212, two opposite side faces 214 and two end faces 215. The folding device 22 is connected between two adjacent side faces 214 of the two frames 21. The bendable area 31 of the flexible screen 30 is arranged on the front face of the folding device 22, and the non-bending area 33 of the flexible screen 30 is connected to the front face 211 of the frame 21. A mounting groove 216 is provided at one end of the front face 211 of each frame 21 close to the folding device 22. The mounting groove 216 passes through the front face 211 of the frame 21, and the opposite ends of the mounting groove 216 extend to the opposite end faces 215 close to the frame 21. The opposite sides of the folding device 22 are respectively accommodated in the mounting grooves 216 of the two frames 21 and connected to the corresponding frames 21. The frame 21 is provided with an inner cavity, and the mainboard 50, the battery and other electronic devices are accommodated in the inner cavity.

[0042] like Figure 4-Figure 7As shown, the gear assembly 23 further includes a first shaft 234 and a second shaft 235 which are spaced apart in parallel, the first driven gear 232 is fixedly sleeved on the first shaft 234, the driving gear 230 is rotatably sleeved on the second shaft 235, and the axis of the first shaft 234 is parallel to the folding axis between the two frames. In this embodiment, the first shaft 234 and the second shaft 235 are respectively fixedly connected to the two frames 21; when the driving member 240 drives the driving gear 230 to rotate around the second shaft 235, the driving gear 230 drives the first driven gear 232 to rotate. Since the first driven gear 232 is fixedly connected to the first shaft 234, and the first shaft 234 is fixedly connected to one of the frames 21, the rotation of the first driven gear 232 can drive the corresponding frame 21 to rotate relative to the other frame 21, thereby realizing the relative rotation of the two frames 21 to fold or unfold each other.

[0043] In this embodiment, the gear assembly 23 also includes a plurality of second driven gears 236 fixedly sleeved on the second shaft 235, and the driving gear 230 and the plurality of second driven gears 236 are arranged along the axial direction of the second shaft 235; a plurality of first driven gears 232 are fixedly sleeved on the first shaft 234, and the plurality of first driven gears 232 are arranged along the axial direction of the first shaft 234, one of the plurality of first driven gears 232 is meshed with the driving gear 230, and the others of the plurality of first driven gears 232 are respectively meshed with the plurality of second driven gears 236. Specifically, five first driven gears 232 are fixedly sleeved on the first shaft 234, and the five first driven gears 232 are arranged at intervals from each other along the axial direction of the first shaft 234; four second driven gears 236 are fixedly sleeved on the second shaft 235, and the four second driven gears 236 are arranged at intervals from each other along the axial direction of the second shaft 235; the four second driven gears 236 are respectively meshed with four of the five first driven gears 232, and the driving gear 230 is meshed with another of the five first driven gears 232.

[0044] Optionally, the driving gear 230 is rotatably sleeved on the middle part of the second shaft 235, two second driven gears 236 are fixedly sleeved on one end of the second shaft 235 at intervals, and the other two second driven gears 236 are fixedly sleeved on the other end of the second shaft 235 at intervals; one of the first driven gears 232 is fixedly sleeved on the middle part of the first shaft 234, the other two first driven gears 232 are fixedly sleeved on one end of the first shaft 234 at intervals, and the remaining two first driven gears 232 are fixedly sleeved on the other end of the first shaft 234 at intervals; the driving gear 230 is meshed with the first driven gear 232 in the middle part of the first shaft 234, and the remaining first driven gears 232 are respectively meshed with the four second driven gears 236.

[0045] In some embodiments, three first driven gears 232 are fixedly sleeved on the first shaft 234, one of the first driven gears 232 is located in the middle of the first shaft 234, and the other two first driven gears 232 are respectively located at the opposite ends of the first shaft 234; a second driven gear 236 is fixedly sleeved on the opposite ends of the second shaft 235, and the driving gear 230 is rotatably sleeved on the middle of the second shaft 235; the driving gear 230 is meshed with the first driven gear 232 in the middle of the first shaft 234, and the first driven gears 232 at the opposite ends of the first shaft 234 are respectively meshed with the second driven gears 236 at the opposite ends of the second shaft 235.

[0046] In some embodiments, only one first driven gear 232 is fixedly sleeved on the first shaft 234 , and the driving gear 230 is rotatably sleeved on the second shaft 235 , and the driving gear 230 and the first driven gear 232 are meshed with each other.

[0047] In some embodiments, the first shaft 234 is fixedly sleeved with two first driven gears 232, the second shaft 235 is fixedly sleeved with a second driven gear 236, the driving gear 230 is rotatably sleeved on the second shaft 235, the driving gear 230 is meshed with one of the first driven gears 232, and the other first driven gear 232 is meshed with the second driven gear 236.

[0048] In some embodiments, the first shaft 234 is fixedly sleeved with six or more first driven gears 232 spaced apart from each other along its axial direction, the second shaft 235 is fixedly sleeved with five or more second driven gears 232 spaced apart from each other along its axial direction, the driving gear 230 is rotatably sleeved on the second shaft 235, the driving gear 230 is meshed with one of the first driven gears 232, and the other first driven gears 232 are respectively meshed with the corresponding second driven gears 232.

[0049] Optionally, the outer diameter of the first driven gear 232 and the outer diameter of the second driven gear 236 may be the same or different, and the number of teeth in one circle of the first driven gear 232 and the number of teeth in one circle of the second driven gear 236 may be the same or different. In this embodiment, the outer diameter of the first driven gear 232 is the same as the outer diameter of the second driven gear 236, and the number of teeth in one circle of the first driven gear 232 and the number of teeth in one circle of the second driven gear 236 are the same.

[0050] Optionally, the outer diameter of the driving gear 230 may be the same as or different from the outer diameter of the first driven gear 232, and the number of teeth in one circle of the driving gear 230 may be the same as or different from the number of teeth in one circle of the first driven gear 232. In this embodiment, the outer diameter of the driving gear 230 is greater than the outer diameter of the first driven gear 232, and the number of teeth in one circle of the driving gear 230 is greater than the number of teeth in one circle of the first driven gear 232, which is conducive to the driving gear 230 driving the first driven gear 232 to rotate. In other embodiments, the outer diameter of the driving gear 230 is the same as the outer diameter of the first driven gear 232, and the number of teeth in one circle of the driving gear 230 is equal to the number of teeth in one circle of the first driven gear 232.

[0051] Optionally, there is a gap between the driving gear 230 and the second shaft 235, and a lubricating material is arranged in the gap. Specifically, the driving gear 230 is provided with an axial hole 2301 along its axial direction, and the second shaft 235 is inserted into the axial hole 2301. The inner diameter of the axial hole 2301 is slightly larger than the diameter of the second shaft 235, so that there is a gap between the outer circumference of the second shaft 235 and the inner circumference of the axial hole 2301, and the lubricating material is filled in the gap, so that the friction resistance between the driving gear 230 and the second shaft 235 is small, which is conducive to the rotation of the driving gear 230 around the second shaft 235.

[0052] Optionally, the gear assembly 23 further includes a first connecting block 237 and a second connecting block 238, the first shaft 234 is fixedly connected to the first connecting block 237, the second shaft 235 is fixedly connected to the second connecting block 238, the first connecting block 237 is fixedly connected to one of the two frames 21, so that the first shaft 234 and the first driven gear 232 thereon are fixedly connected to one of the frames 21; the second connecting block 238 is fixedly connected to the other of the two frames 21, so that the second shaft 235 and the second driven gear 236 thereon and the driving gear 230 are fixedly connected to the other frame 21. In this embodiment, the opposite ends of the first shaft 234 are respectively fixedly connected to the first connecting block 237, and the first connecting block 237 is provided between each two adjacent first driven gears 232, the opposite ends of the second shaft 235 are respectively fixedly connected to the second connecting block 238, and the second connecting block 238 is provided between each two adjacent second driven gears 236.

[0053] In some embodiments, the first connecting blocks 237 at opposite ends of the first shaft 234 can be omitted, and only the first connecting blocks 237 between each two adjacent first driven gears 232 on the first shaft 234 are retained, and the opposite ends of the first shaft 234 are connected to the frame 21.

[0054] In some embodiments, the first connection blocks 237 between every two adjacent first driven gears 232 on the first shaft 234 may be omitted, and only the first connection blocks 237 at opposite ends of the first shaft 234 are retained.

[0055] In some embodiments, the second connecting blocks 238 at opposite ends of the second shaft 235 can be omitted, and only the second connecting blocks 238 between each two adjacent second driven gears 236 on the second shaft 235 are retained, and the opposite ends of the second shaft 235 are connected to the frame 21.

[0056] In some embodiments, the second connecting blocks 238 between every two adjacent second driven gears 236 on the second shaft 235 may be omitted, and only the second connecting blocks 238 at opposite ends of the second shaft 235 are retained.

[0057] like Figure 5-Figure 8 As shown, the driving member 240 is a motor, which is electrically connected to the main board through a cable. The driving assembly 24 also includes a reduction gear set 242 and an output gear 244. The reduction gear set 242 is connected to the motor, and the output gear 244 is connected to the reduction gear set 242 through an output shaft 245. The output gear 244 is meshed with the driving gear 230. The driving member 240 drives the output shaft 245 to rotate through the reduction gear set 242 to drive the output gear 244 to rotate, and the output gear 244 drives the driving gear 230 to rotate, and the driving gear 230 drives the first driven gear 232 to rotate. Specifically, one end of the output shaft 245 is connected to the reduction gear set 242, and the output gear 244 is fixedly connected to the other end of the output shaft 245. The driving member 240 may be a stepper motor or a DC motor. Since the output gear 244 has a short driving distance, a large torque is required to open the folding housing 20 at this location. If the torque is insufficient, the folding housing 20 may not be opened or the motor may be damaged. Therefore, a reduction gear set 242 is added between the output gear 244 and the motor. The reduction gear set 242 is used to reduce the output speed of the motor to increase the torque of the output gear 244. The reduction gear set 242 may adopt planetary reduction or conventional ratio reduction.

[0058] Optionally, the folding device 22 further includes a back plate 26 disposed on the back side thereof, the gear assembly 23 is disposed on the front side of the back plate 26 , the back plate 26 is located between the two frames 21 , and the back plate 26 is used to prevent external debris from entering the gear assembly 23 .

[0059] Optionally, the folding device 22 also includes a bendable support plate, which is arranged on the front side of the folding device 22, that is, the support plate covers the front side of the first driven gear 232, the second driven gear 236 and the driving gear 230, and the support plate is used to support the bendable area 31 of the flexible screen 30.

[0060] Optionally, the folding device 22 further includes a bendable component disposed on the front of the gear assembly 23, the bendable component including a middle support hinge and two side support hinges connected to opposite sides of the middle support hinge, the two side support hinges are respectively connected to the two frames 21, and the back of the flexible screen 30 is attached to the front of the middle support hinge and the two side support hinges. The bendable component is used to support the bendable area 31, and the bendable component is folded or flattened with the folding device 22 to drive the bendable area 31 of the flexible screen 30 to fold or flatten.

[0061] Please also read Figure 1-Figure 7 When assembling the electronic device 100, the driving gear 230 is rotatably sleeved on the second shaft 235, and the driving gear 230 is meshed with the corresponding first driven gear 232, and the remaining first driven gears 232 are respectively meshed with a plurality of second driven gears 236; the two frames 21 are placed on opposite sides of the gear assembly 23, so that the first connecting block 237, the first driven gear 232 and the first shaft 234 are accommodated in the mounting groove 216 of one of the frames 21, and the first connecting block 237 is fixedly connected to the one of the frames 21; the second connecting block 238, the second driven gear 236 , the second shaft 235 and the driving gear 230 are accommodated in the mounting groove 216 of the other frame 21, and the second connecting block 238 is fixedly connected to the other frame 21; the output gear 244 is engaged with the driving gear 230, so that the driving component 24 is fixedly connected to the corresponding frame 21, and the driving component 240 is electrically connected to the main board 50; the flexible screen 30 is covered on the front side of the folding shell 20, specifically, the bendable area 31 covers the gear assembly 23, and the two non-bending areas 33 are respectively fixedly connected to the front sides 211 of the two frames 21; the back panel 26 covers the back side of the folding device 22.

[0062] When the electronic device 100 needs to be automatically unfolded, the processor 52 of the mainboard 50 receives the unfolding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242, the output gear 244 drives the driving gear 230 to rotate, the driving gear 230 drives the corresponding first driven gear 232 to rotate, the first driven gear 232 rotates relative to the second driven gear 236, so that the two frames 21 rotate relative to each other and away from unfolding, the two frames 21 drive the flexible screen 30 to automatically unfold until the flexible screen 30 automatically unfolds to a flattened state.

[0063] When the electronic device 100 needs to be automatically folded, the processor 52 of the mainboard 50 receives the folding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242, the output gear 244 drives the driving gear 230 to rotate, the driving gear 230 drives the corresponding first driven gear 232 to rotate, the first driven gear 232 rotates relative to the second driven gear 236, so that the two frames 21 rotate with each other and fold close together, the two frames 21 drive the flexible screen 30 to fold automatically until the flexible screen 30 is automatically folded to a fully folded state.

[0064] Optionally, the electronic device 100 also includes a voice recognition module electrically connected to the mainboard 50, which is used for voice recognition and sending an unfolding instruction or a folding instruction to the mainboard 50; when the electronic device 100 is in a folded state, the voice recognition module recognizes the voice and sends an unfolding instruction to the mainboard 50, the mainboard 50 receives the unfolding instruction and controls the driving member 240 to drive the output gear 244 to rotate, the output gear 244 drives the driving gear 230 to rotate, the driving gear 230 drives the corresponding first driven gear 232 to rotate, the first driven gear 232 rotates relative to the second driven gear 236, so that the two frames 21 rotate relative to each other and move away from unfolding, and the two frames 21 drive the flexible screen 30 to unfold automatically until the flexible screen 30 unfolds to a flattened state. When the electronic device 100 is in a flattened state, the voice recognition module recognizes the voice and sends a folding instruction to the mainboard 50. The mainboard 50 receives the folding instruction and controls the driving member 240 to drive the output gear 244 to rotate. The output gear 244 drives the driving gear 230 to rotate. The driving gear 230 drives the corresponding first driven gear 232 to rotate. The first driven gear 232 rotates relative to the second driven gear 236, so that the two frames 21 rotate with each other and fold close together. The two frames 21 drive the flexible screen 30 to fold automatically until the flexible screen 30 is folded to a folded state.

[0065] Optionally, the electronic device 100 also includes a pressure sensor electrically connected to the motherboard 50, which is used to receive touch pressure and send an expansion instruction or a folding instruction to the motherboard 50; when the electronic device 100 is in a folded state, such as pressing or double-clicking the pressure sensor, the pressure sensor receives the touch pressure and sends an expansion instruction to the motherboard 50, the motherboard 50 receives the expansion instruction and controls the driving member 240 to drive the output gear 244 to rotate, the output gear 244 drives the driving gear 230 to rotate, the driving gear 230 drives the corresponding first driven gear 232 to rotate, the first driven gear 232 rotates relative to the second driven gear 236, so that the two frames 21 rotate relative to each other and move away from expansion, and the two frames 21 drive the flexible screen 30 to automatically expand until the flexible screen 30 is expanded to a flattened state. When the electronic device 100 is in a flattened state, such as pressing or double-clicking the pressure sensor, the pressure sensor receives the touch pressure and sends a folding instruction to the mainboard 50, the mainboard 50 receives the folding instruction and controls the driving member 240 to drive the output gear 244 to rotate, the output gear 244 drives the driving gear 230 to rotate, the driving gear 230 drives the corresponding first driven gear 232 to rotate, the first driven gear 232 rotates relative to the second driven gear 236, so that the two frames 21 rotate with each other and fold close together, the two frames 21 drive the flexible screen 30 to fold automatically until the flexible screen 30 is folded to a folded state.

[0066] In this embodiment, the electronic device 100 is an inner folding screen device, that is, when the electronic device 100 is in the folded state, the two non-bending areas 33 of the flexible screen 30 are parallel to each other and in contact with each other. When the electronic device 100 is in the unfolded state, the non-bending area 33 on one frame 21 of the electronic device 100 is coplanar with the non-bending area 33 on the other frame 21, that is, the angle between the two non-bending areas 33 is 180 degrees, so that the flexible screen 30 is in a planar unfolded state, that is, the bendable area 31 and the two non-bending areas 33 are located in the same plane; when the electronic device 100 changes from the unfolded state to the folded state, the two frames 21 are brought closer to each other through the folding device 22, that is, the angle between the two non-bending areas 33 changes from 180 degrees to 0 degrees; when the electronic device 100 is in the folded state, the non-bending areas 33 on the two frames 21 of the electronic device 100 are parallel to each other, so that the flexible screen 30 is in a U-shaped or water drop-shaped folding state, that is, the bendable area 31 forms an inward U-shaped arc or a water drop-shaped folding state. In this embodiment, when the electronic device 100 is in the folded state, the flexible screen 30 is in a U-shaped folded state. At this time, the entire display area of ​​the flexible screen 30 does not display the user interface.

[0067] A touch screen 40 is disposed on the back side 212 of one of the frames 21 or the back sides of both frames 21. When the electronic device 100 is in a folded state, the touch screen 40 is used to display a user interface, which may be the same as or different from the user interface displayed on the touch screen 40 in the unfolded state.

[0068] In some embodiments, the electronic device 100 may be an external folding screen device, that is, when the electronic device 100 is in the folded state, the two non-bending areas 33 of the flexible screen 30 are away from each other. When the electronic device 100 is in the unfolded state, the non-bending areas 33 on the two frames 21 of the electronic device 100 are coplanar with the non-bending areas 33 on the front of the folding device 22, that is, the angle between the two non-bending areas 33 is 180 degrees, so that the flexible screen 30 is in a planar unfolded state, that is, the bendable area 31 and the two non-bending areas 33 are located in the same plane; when the electronic device 100 changes from the unfolded state to the folded state, the two frames 21 are brought closer to each other through the folding device 22, that is, the angle between the two non-bending areas 33 changes from 180 degrees to 0 degrees; when the electronic device 100 is in the folded state, the non-bending areas 33 on the two frames 21 of the electronic device 100 are parallel to each other, so that the flexible screen 30 is in a U-shaped folded state, that is, the bendable area 31 forms an outwardly convex U-shaped arc surface.

[0069] The two frames 21 of the electronic device 100 have the same or similar sizes. In this embodiment, the two frames 21 of the electronic device 100 have the same sizes, and the folding method of the electronic device 100 is symmetrical folding. In other embodiments, the two frames 21 of the electronic device 100 have different sizes, and the folding method of the electronic device 100 can also be asymmetrical folding.

[0070] In some embodiments, the electronic device 100 may further include a plurality of frames, each of which is connected to each other by a folding device 22. Accordingly, the flexible screen 30 of the electronic device 100 includes a plurality of non-bending regions 33 and a bendable region 31 connected between each of which is connected to each of which is connected to each of which is connected to each of which is connected to each of which is connected to each of which is connected to each of which is connected to each of which is connected to each of which. The plurality of bendable regions 31 correspond to the plurality of folding devices 22 one by one. Optionally, the bendable regions 31 are made of a flexible material, thereby realizing an electronic device 100 with a multi-fold structure.

[0071] The electronic device 100 is also provided with at least one other component, including but not limited to a camera, a fingerprint sensor, a proximity light sensor, a distance sensor, etc. In some embodiments, at least one other component is provided on the front, side or back of the electronic device 100, such as a fingerprint sensor provided on the back or side of the folding housing 20, and a camera provided above the flexible screen 30.

[0072] In some embodiments, a touch sensor is provided on the side 214, two end surfaces 215, or the back surface 212 of the frame 21 of the electronic device 100 away from the folding device 22, and the touch sensor is used to detect at least one of a touch operation, a click operation, a press operation, and a slide operation performed by a user on the frame 21. The touch sensor can be any one of a touch sensor, a thermal sensor, a pressure sensor, etc. The user can apply an operation on the touch sensor to control the application in the electronic device 100.

[0073] It can be understood that the electronic device 100 also includes components such as a radio frequency circuit, an input unit, a sensor, an audio circuit, a wireless fidelity module, a power supply, and a Bluetooth module, which will not be described in detail here.

[0074] See also Fig.10 , Fig.10 1 is a flowchart of a method for unfolding and folding a flexible screen 30 of an electronic device 100 provided in one exemplary embodiment of the present application. The method for unfolding or folding a flexible screen 30 includes:

[0075] Step 101: Detect the state of the electronic device 100.

[0076] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0077] Step 103: When the electronic device 100 is in the folded state, the mainboard 50 receives the unfolding instruction and controls the driving member 240 to drive the driving gear 230 to rotate in the first direction, so as to drive the first driven gear 232 to rotate synchronously, so as to control the flexible screen 30 of the electronic device 100 to unfold from the folded state to the flattened state.

[0078] Specifically, the mainboard 50 receives the unfolding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242. The rotation of the output gear 244 drives the driving gear 230 to rotate in the first direction. The driving gear 230 drives the corresponding first driven gear 232 to rotate, so that the remaining first driven gears 232 rotate respectively relative to the multiple second driven gears 236, so that the two frames 21 rotate relative to each other and move away from each other, and the flexible screen 30 unfolds from the folded state to the curved unfolded state until the flexible screen 30 is in a planar unfolded state.

[0079] Step 105: When the electronic device 100 is in the flattened state, the mainboard 50 receives a folding instruction and controls the driving member 240 to drive the driving gear 230 to rotate in the second direction, so as to drive the first driven gear 232 to rotate synchronously, so as to control the flexible screen 30 of the electronic device 100 to fold from the flattened state to the folded state.

[0080] Specifically, the mainboard 50 receives the folding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242. The rotation of the output gear 244 drives the driving gear 230 to rotate in the second direction. The driving gear 230 drives the corresponding first driven gear 232 to rotate, so that the remaining first driven gears 232 rotate respectively relative to the multiple second driven gears 236, so that the two frames 21 rotate relative to each other and approach each other, and the flexible screen 30 folds from the planar unfolded state to the curved unfolded state until the flexible screen 30 is in a folded state.

[0081] See also Fig.11 , Fig.11 1 is a flow chart of a method for unfolding a flexible screen 30 of an electronic device 100 provided in one exemplary embodiment of the present application. The electronic device 100 further includes a voice recognition module electrically connected to a mainboard 50, wherein the voice recognition module is used for voice recognition and sending an unfolding instruction to the mainboard 50. The method for unfolding the flexible screen 30 includes:

[0082] Step 111 , detecting the state of the flexible screen 30 of the electronic device 100 .

[0083] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0084] Step 112, when the flexible screen 30 is in a folded state, voice recognition is performed through the voice recognition module and an unfolding instruction is sent to the mainboard 50.

[0085] Optionally, the voice recognition module can be but is not limited to being disposed in the inner cavity of one of the frames 21 and located at the front 211, the back 212, the two side surfaces 214 or the end surface 215. The voice recognition module is used to receive the user's voice command and send the expansion command to the mainboard 50 after recognizing the voice.

[0086] Step 114 , the mainboard 50 receives the unfolding instruction and controls the electronic device 100 to unfold from the folded state to the flattened state.

[0087] Specifically, the mainboard 50 receives the unfolding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242. The rotation of the output gear 244 drives the driving gear 230 to rotate in the first direction. The driving gear 230 drives the corresponding first driven gear 232 to rotate, so that the remaining first driven gears 232 rotate respectively relative to the multiple second driven gears 236, so that the two frames 21 rotate relative to each other and move away from each other, and the flexible screen 30 unfolds from the folded state to the curved unfolded state until the flexible screen 30 is in a planar unfolded state.

[0088] See also Fig.12 , Fig.12 1 is a flow chart of a method for folding a flexible screen 30 of an electronic device 100 provided in one exemplary embodiment of the present application. The electronic device 100 further includes a voice recognition module electrically connected to a mainboard 50, wherein the voice recognition module is used for voice recognition and sending a folding instruction to the mainboard 50. The method for folding the flexible screen 30 includes:

[0089] Step 121 , detecting the state of the flexible screen 30 of the electronic device 100 .

[0090] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state means that the flexible screen 30 is folded into a U shape, the two non-bending areas 33 are parallel to each other, and the light-emitting surfaces face each other. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state means that the two non-bending areas 33 and the bendable area 31 of the flexible screen 30 are coplanar, and the bent unfolded state means that the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0091] Step 122, when the flexible screen 30 is in the unfolded state, voice recognition is performed through the voice recognition module and a folding instruction is sent to the mainboard 50.

[0092] Optionally, the voice recognition module can be but is not limited to being disposed in the inner cavity of one of the frames 21 and located at the front 211, the back 212, the two side surfaces 214 or the end surface 215. The voice recognition module is used to receive the user's voice command and send a folding command to the mainboard 50 after recognizing the voice.

[0093] Step 124 , the mainboard 50 receives the folding instruction and controls the electronic device 100 to fold from the flat state to the folded state.

[0094] Specifically, the mainboard 50 receives the folding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242. The rotation of the output gear 244 drives the driving gear 230 to rotate in the second direction. The driving gear 230 drives the corresponding first driven gear 232 to rotate, so that the remaining first driven gears 232 rotate respectively relative to the multiple second driven gears 236, so that the two frames 21 rotate relative to each other and approach each other, and the flexible screen 30 folds from the planar unfolded state to the curved unfolded state until the flexible screen 30 is in the folded state.

[0095] See also Fig.13 , Fig.13 1 is a flow chart of a method for unfolding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes a pressure sensor electrically connected to the mainboard 50, and the pressure sensor is used to detect a touch pressure exerted by a user on the pressure sensor. The method for unfolding the flexible screen 30 includes:

[0096] Step 131 : Detect the state of the flexible screen 30 of the electronic device 100 .

[0097] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0098] Step 133: When the flexible screen 30 is in the folded state, the touch pressure received on the frame 21 is detected by the pressure sensor.

[0099] Optionally, the pressure sensor is disposed on the front 211, the back 212, the two side surfaces 214 or the end surface 215 of one of the frames 21. Optionally, a pressure sensor is disposed on one of the side surfaces 214 of one of the frames 21, and the pressure sensor is used to receive the touch pressure in the area where the pressure sensor is disposed, and the touch pressure generated by the user on the frame 21 of the electronic device 100 can be detected through the pressure sensor.

[0100] Step 135: Control the electronic device 100 to unfold from the folded state to the unfolded state according to the touch pressure.

[0101] Optionally, a driving component 24 is provided in the electronic device 100, and the driving component 24 is arranged between the two non-bending areas 33 of the flexible screen 30. By controlling the driving member 240 of the driving component 24 to drive the driving gear 230 to rotate, the two non-bending areas 33 of the flexible screen 30 can be automatically separated.

[0102] See also Fig.14 , Fig.14 1 is a flow chart of a method for folding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes a pressure sensor electrically connected to the mainboard 50, and the pressure sensor is used to detect a touch pressure exerted by a user on the pressure sensor. The method for unfolding or folding the flexible screen 30 includes:

[0103] Step 141: Detect the state of the flexible screen 30 of the electronic device 100.

[0104] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0105] Step 143: When the flexible screen 30 is in a flattened state, the touch pressure received on the frame 21 is detected by the pressure sensor.

[0106] Optionally, the pressure sensor is disposed on the front 211, the back 212, the two side surfaces 214 or the end surface 215 of one of the frames 21. Optionally, a pressure sensor is disposed on one of the side surfaces 214 of one of the frames 21, and the pressure sensor is used to receive the touch pressure in the area where the pressure sensor is disposed, and the touch pressure generated by the user on the frame 21 of the electronic device 100 can be detected through the pressure sensor.

[0107] Step 145: Control the electronic device 100 to fold from the unfolded state to the folded state according to the touch pressure.

[0108] Optionally, a driving component 24 is provided in the electronic device 100, and the driving component 24 is arranged between the two non-bending areas 33 of the flexible screen 30. By controlling the driving member 240 of the driving component 24 to drive the active gear 230 to rotate, the two non-bending areas 33 of the flexible screen 30 can be automatically brought together.

[0109] Optionally, according to the different pressure values ​​of the touch pressure, the flexible screen 30 can be controlled to unfold from the folded state to the bent unfolded state, or the flexible screen 30 can be controlled to unfold from the folded state to the planar unfolded state. In some embodiments, the mainboard 50 of the electronic device 100 can also control the degree of opening and closing of the flexible screen 30 when it unfolds from the folded state to the unfolded state according to the different time lengths of the detected touch pressure. Optionally, when the electronic device 100 is in the folded state, upon receiving the touch pressure, the electronic device 100 starts to control the flexible screen 30 to unfold from the folded state, and when the touch pressure ends, the electronic device 100 ends the control of the flexible screen 30 unfolding from the folded state to the unfolded state, at which point the flexible screen 30 may be in a planar unfolded state or a bent unfolded state. Optionally, when the electronic device 100 is in the flattened state, upon receiving the touch pressure, the electronic device 100 starts to control the flexible screen 30 to fold from the flattened state, and when the touch pressure ends, the electronic device 100 ends the control of the flexible screen 30 folding from the flattened state to the folded state, at which point the flexible screen 30 may be in a planar unfolded state or a bent unfolded state.

[0110] Therefore, by applying a pressure signal to the corresponding pressure sensor of the frame 21 of the electronic device 100, the electronic device 100 can automatically switch from the folded state to the unfolded state, or from the unfolded state to the folded state, so that the user does not need to use both hands to apply external force from the joint of the two non-bending areas 33. The user only needs to apply a pressure signal to the corresponding pressure sensor of one of the frames 21 with one hand to easily open or fold the flexible screen 30, thereby solving the problem that the user cannot control the flexible screen 30 to unfold from the folded state to the unfolded state with one hand because the two non-bending areas 33 of the flexible screen 30 are too closely attached.

[0111] See also Fig.15 , Fig.15 1 is a flow chart of a method for unfolding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes a pressure sensor electrically connected to the mainboard 50, and the pressure sensor is used to detect a touch pressure exerted by a user on the pressure sensor. The method for unfolding the flexible screen 30 includes:

[0112] Step 151 : Detect the state of the flexible screen 30 of the electronic device 100 .

[0113] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0114] Step 153: When the flexible screen 30 is in the folded state, the touch pressure received on the frame 21 is detected by the pressure sensor.

[0115] A pressure sensor is disposed on the frame 21 of the detection electronic device 100 . The pressure sensor is used to receive touch pressure in the area where the pressure sensor is disposed. The pressure sensor can detect the touch pressure generated by the user on the frame 21 of the electronic device 100 .

[0116] Step 155: Obtain the pressure value of the touch pressure. When the pressure value is greater than the first threshold, the mainboard 50 controls the driving member 240 to drive the driving gear 230 to rotate in the first direction, so that the two frames 21 are unfolded from the folded state to the flattened state.

[0117] Optionally, the pressure sensor reports a touch event such as a double-click touch to the processor 52. The touch event includes a touch position and a touch pressure. The processor 52 obtains a touch pressure from the touch event. The touch pressure includes a pressure value, which is used to indicate the magnitude of the pressure applied by the user on the pressure sensor.

[0118] Optionally, when the pressure value of the touch pressure is greater than a first threshold, the user can control the flexible screen 30 to unfold from the folded state to the unfolded state. The first threshold may be preset by the user or developer. For example, the first threshold is 5N. When the pressure value of the touch pressure is greater than 5N, the electronic device 100 controls the flexible screen 30 to unfold from the folded state to the unfolded state; when the pressure value of the touch pressure is less than 5N, the electronic device 100 does not control the flexible screen 30 to unfold.

[0119] Optionally, according to the pressure value, the electronic device 100 can control the flexible screen 30 to unfold from the folded state to the bent unfolded state. In some embodiments, there is also a third threshold value pre-set for the user or developer. When the pressure value is less than the third threshold value, the electronic device 100 controls the flexible screen 30 to unfold from the folded state to the bent unfolded state, that is, the state where the angle between the two non-bendable areas 31 of the electronic device 300 is less than 180°; when the pressure value is greater than the third threshold value, the electronic device 300 controls the flexible screen 30 to unfold from the folded state to the planar unfolded state, that is, the state where the angle between the two non-bendable areas 31 of the electronic device 100 is equal to 180°. Optionally, the numerical value of the third threshold value may be greater than or equal to the numerical value of the first threshold value, wherein when the numerical value of the third threshold value is equal to the numerical value of the first threshold value, the flexible screen 30 directly unfolds from the folded state to the planar unfolded state.

[0120] See also Fig.16 , Fig.16 1 is a flow chart of a method for folding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes a pressure sensor electrically connected to the mainboard 50, and the pressure sensor is used to detect a touch pressure exerted by a user on the pressure sensor. The method for folding the flexible screen 30 includes:

[0121] Step 161 : Detect the state of the flexible screen 30 of the electronic device 100 .

[0122] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0123] Step 163: When the flexible screen 30 is in a flattened state, the touch pressure received on the frame 21 is detected by the pressure sensor.

[0124] A pressure sensor is disposed on the frame 21 of the detection electronic device 100 . The pressure sensor is used to receive touch pressure in the area where the pressure sensor is disposed. The pressure sensor can detect the touch pressure generated by the user on the frame 21 of the electronic device 100 .

[0125] Step 165: Obtain the pressure value of the touch pressure. When the pressure value is greater than the second threshold, the mainboard 50 controls the driving member 240 to drive the driving gear 230 to rotate in the second direction, so that the two frames 21 are folded from the flat state to the folded state.

[0126] Optionally, the pressure sensor reports a touch event including a touch position and a touch pressure to the processor 52. The processor 52 obtains the touch pressure from the touch event, including a pressure value, which is used to indicate the magnitude of the pressure applied by the user on the pressure sensor.

[0127] Optionally, when the pressure value of the touch pressure is greater than a second threshold, the user can control the flexible screen 30 to fold from the unfolded state to the folded state. The second threshold can be preset by the user or developer. The first threshold and the second threshold can be the same or different in size. For example, the second threshold is also 5N. When the pressure value of the touch pressure is greater than 5N, the electronic device 100 controls the flexible screen 30 to fold from the unfolded state to the folded state; when the pressure value of the touch pressure is less than 5N, the electronic device 100 does not control the flexible screen 30 to fold.

[0128] Optionally, the electronic device 100 can control the flexible screen 30 to fold from the bent unfolded state to the folded state. In some embodiments, there is also a fourth threshold value pre-set for the user or developer. When the pressure value is less than the fourth threshold value, the electronic device 100 controls the flexible screen 30 to fold from the bent unfolded state to the folded state, that is, the state where the angle between the two non-bendable regions 31 of the electronic device 300 is less than 180°; when the pressure value is greater than the fourth threshold value, the electronic device 300 controls the flexible screen 30 to fold from the planar unfolded state to the folded state, that is, the state where the angle between the two non-bendable regions 31 of the electronic device 100 is equal to 0°. Optionally, the numerical value of the fourth threshold value may be greater than or equal to the numerical value of the second threshold value, wherein when the numerical value of the fourth threshold value is equal to the numerical value of the second threshold value, the flexible screen 30 is directly folded from the planar unfolded state to the folded state.

[0129] like Fig.17 As shown, Fig.17 1 is a flow chart of a method for folding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes a pressure sensor electrically connected to the mainboard 50, and the pressure sensor is used to detect a touch pressure exerted by a user on the pressure sensor. The method for folding the flexible screen 30 includes:

[0130] Step 171 : Detect the state of the flexible screen 30 of the electronic device 100 .

[0131] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the angle between the two non-bending areas 33 in the planar unfolded state is 180 degrees; the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0132] Step 173: Determine whether the time the electronic device 100 is placed on the support surface is greater than a preset time.

[0133] Specifically, the support surface refers to any support surface used to support the electronic device 100, and the support surface may be, but is not limited to, a work surface, a desktop, etc. The preset time may be preset by a user or developer, for example, the preset time may be any time period such as 30 minutes, 45 minutes or 1 hour. When the electronic device 100 is placed on the support surface and remains stationary, the electronic device 100 starts timing and determines whether the time the electronic device 100 is supported is greater than the preset time. If it is determined that the time the electronic device 100 is supported is less than the preset time, the electronic device 100 maintains its posture unchanged; if it is determined that the time the electronic device 100 is supported is greater than the preset time, the following steps are performed.

[0134] Step 175: Determine whether the flexible screen 30 of the electronic device 100 is in a flattened state, and whether the light emitting surface of the flexible screen 30 is away from the supporting surface.

[0135] Specifically, the light-emitting surface refers to the surface from which the light beams of the flexible screen 30 are guided out of the light-transmitting plate. The unfolded state includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 and the bendable area 31 of the flexible screen 30 are coplanar, and the angle between the two non-bending areas 33 in the planar unfolded state is 180 degrees; the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state. If it is determined that the electronic device 100 is in a flattened state, and the light-emitting surface of the flexible screen 30 is facing away from the supporting surface, the following steps are performed; if it is determined that the electronic device 100 is in a flattened state, and the light-emitting surface of the flexible screen 30 is facing the supporting surface, the electronic device 100 maintains the posture unchanged; if it is determined that the electronic device 100 is in a folded state, the posture is maintained unchanged.

[0136] Step 177: receiving a folding instruction and controlling the driving member 240 to drive the driving gear 230 to rotate in a second direction, so that the two frames 21 are folded from the flat state to the folded state.

[0137] Specifically, when the electronic device 100 is in a flattened state and the light-emitting surface of the flexible screen 30 is away from the supporting surface, the mainboard 50 receives the folding instruction and controls the driving member 240 to drive the output gear 244 to rotate through the reduction gear group 242, and the output gear 244 drives the driving gear 230 to rotate in the second direction, and the driving gear 230 drives the corresponding first driven gear 232 to rotate, so that the remaining first driven gears 232 rotate relative to the plurality of second driven gears 236, respectively, so that the two frames 21 rotate with each other and approach each other, and the flexible screen 30 changes from the flattened state to the folded state. During the application of the electronic device 100, the flexible screen 30 is easily bumped and damaged or contaminated when it is in the unfolded state and the flexible screen 30 is away from the supporting surface. When the flexible screen 30 of the electronic device 100 of the present invention is in the unfolded state and the flexible screen 30 is away from the supporting surface, when the placement time is greater than the preset time, the electronic device 100 can automatically fold from the flattened state to the folded state, avoiding the flexible screen 30 from being bumped or contaminated, etc., and protecting the flexible screen 30.

[0138] like Fig.18 As shown, Fig.18 1 is a flow chart of a method for unfolding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes an angle measurement module electrically connected to the mainboard 50, and the angle measurement module is used to detect the folding angle of the electronic device 100. The method for unfolding the flexible screen 30 includes:

[0139] Step 181 : Detect the state of the flexible screen 30 of the electronic device 100 .

[0140] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the angle between the two non-bending areas 33 in the planar unfolded state is 180 degrees; the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0141] Step 183: When the electronic device 100 is in the folded state, the mainboard 50 receives the unfolding instruction and obtains the hovering angle; the driving member 240 is controlled to drive the driving gear 230 to rotate in the first direction, so as to drive the first driven gear 232 and the second driven gear 236 to rotate synchronously, so as to control the flexible screen 30 of the electronic device 100 to unfold from the folded state;

[0142] Specifically, when the electronic device 100 is in a folded state, the mainboard 50 receives an unfolding instruction and obtains a hovering angle to control the flexible screen 30 of the electronic device 100 to unfold from the folded state to the bent unfolded state where the hovering angle is located. The hovering angle can be preset by a user or a developer, and the range of the hovering angle is that the angle between the two non-bending areas 33 is greater than 0 degrees and less than 180 degrees. Preferably, the range of the hovering angle is that the angle between the two non-bending areas 33 is greater than 90 degrees and less than 180 degrees. For example, when the hovering angle is 120 degrees, the mainboard 50 controls the flexible screen 30 of the electronic device 100 to unfold from 0 degrees to 120 degrees. For example, when the hovering angle is 150 degrees, the mainboard 50 controls the flexible screen 30 of the electronic device 100 to unfold from 0 degrees to 150 degrees.

[0143] Step 185: Determine whether the folding angle of the electronic device 100 reaches the hovering angle.

[0144] Specifically, during the unfolding process of the electronic device 100, the electronic device 100 determines whether the folding angle of the electronic device 100 reaches the hovering angle through the angle measurement module. For example, if the hovering angle is 120 degrees, the angle measurement module determines whether the electronic device 100 is unfolded to 120 degrees.

[0145] Step 187: Control the driving member 240 to stop driving the driving gear 230 and make the electronic device 300 maintain the folding angle.

[0146] If yes, that is, the folding angle of the electronic device 100 reaches the hovering angle, the mainboard 50 controls the driving member 240 to stop driving the driving gear 230, the driving gear 230 stops rotating, and the electronic device 300 maintains the folding angle; if no, that is, the folding angle of the electronic device 100 does not reach the hovering angle, the mainboard 50 controls the driving member 240 to continue driving the driving gear 230 to rotate until the folding angle of the electronic device 100 reaches the hovering angle. For example, the hovering angle is 120 degrees. During the unfolding process of the electronic device 100, if it is judged that the folding angle of the electronic device 100 reaches 120 degrees, the mainboard 50 controls the driving member 240 to stop driving the driving gear 230, and the electronic device 100 maintains the folding angle of 120 degrees; if it is judged that the folding angle of the electronic device 100 does not reach 120 degrees, the mainboard 50 controls the driving member 240 to continue driving the driving gear 230 to rotate, so that the electronic device 100 unfolds to 120 degrees and then maintains the folding angle of 120 degrees.

[0147] like Fig.19 As shown, Fig.19 1 is a flow chart of a method for folding a flexible screen 30 of an electronic device 100 provided in another exemplary embodiment of the present application. The electronic device 100 further includes an angle measurement module electrically connected to the mainboard 50, and the angle measurement module is used to detect the folding angle of the electronic device 100; the method for unfolding the flexible screen 30 includes:

[0148] Step 191: Detect the state of the flexible screen 30 of the electronic device 100.

[0149] Specifically, the state of the flexible screen 30 can be a folded state or an unfolded state, wherein the folded state refers to the flexible screen 30 being folded into a U-shape, the two non-bending areas 33 being parallel to each other and the light-emitting surfaces facing each other, and at this time, the flexible screen 30 is in a non-display state. The unfolded state of the flexible screen 30 includes a bent unfolded state and a planar unfolded state, wherein the planar unfolded state is that the two non-bending areas 33 of the flexible screen 30 and the bendable area 31 are coplanar, and the angle between the two non-bending areas 33 in the planar unfolded state is 180 degrees; the bent unfolded state is a state in which the angle formed by the two non-bending areas 33 of the flexible screen 30 is less than 180 degrees but greater than 0 degrees, and the bendable area 31 is in a bent state.

[0150] Step 193: When the electronic device 100 is in the flattened state, the mainboard 50 receives the folding instruction and obtains the hovering angle; the driving member 240 is controlled to drive the driving gear 230 to rotate in the second direction, so as to drive the first driven gear 232 and the second driven gear 236 to rotate synchronously, so as to control the flexible screen 30 of the electronic device 100 to fold from the flattened state;

[0151] Specifically, when the electronic device 100 is in a flattened state, the mainboard 50 receives a folding instruction and obtains a hovering angle to control the flexible screen 30 of the electronic device 100 to fold from the flattened state to the bent unfolded state where the hovering angle is located. The hovering angle can be preset by a user or a developer, and the range of the hovering angle is that the angle between the two non-bending areas 33 is greater than 0 degrees and less than 180 degrees. Preferably, the range of the hovering angle is that the angle between the two non-bending areas 33 is greater than 90 degrees and less than 180 degrees. For example, when the hovering angle is 120 degrees, the mainboard 50 controls the flexible screen 30 of the electronic device 100 to fold from 180 degrees to 120 degrees. For example, when the hovering angle is 150 degrees, the mainboard 50 controls the flexible screen 30 of the electronic device 100 to fold from 180 degrees to 150 degrees.

[0152] Step 195: Determine whether the folding angle of the electronic device 100 reaches the hovering angle.

[0153] Specifically, during the folding process of the electronic device 100, the electronic device 100 determines through the angle measurement module whether the folding angle of the electronic device 100 reaches the hovering angle. For example, if the hovering angle is 150 degrees, the angle measurement module determines whether the electronic device 100 is folded to 150 degrees.

[0154] Step 197: Control the driving member 240 to stop driving the driving gear 230 and make the electronic device 300 maintain the folding angle.

[0155] If yes, that is, the folding angle of the electronic device 100 reaches the hovering angle, the mainboard 50 controls the driving member 240 to stop driving the driving gear 230, the driving gear 230 stops rotating, and the electronic device 300 maintains the folding angle; if no, that is, the folding angle of the electronic device 100 does not reach the hovering angle, the mainboard 50 controls the driving member 240 to continue driving the driving gear 230 to rotate until the folding angle of the electronic device 100 reaches the hovering angle. For example, the hovering angle is 150 degrees. During the folding process of the electronic device 100, if it is determined that the folding angle of the electronic device 100 reaches 150 degrees, the mainboard 50 controls the driving member 240 to stop driving the driving gear 230, and the electronic device 100 maintains the folding angle of 150 degrees; if it is determined that the folding angle of the electronic device 100 does not reach 150 degrees, the mainboard 50 controls the driving member 240 to continue driving the driving gear 230 to rotate, so that the electronic device 100 is folded to 150 degrees and then maintains the folding angle of 150 degrees.

[0156] Optionally, the electronic device 100 is provided with an angle measurement module, and a graphical user interface for adjusting the folding angle of the electronic device 100 is displayed on the touch display screen 40 and / or the flexible screen 30, and the user can preset the preset angle of the electronic device 100 by operating the graphical user interface. Fig. 20As shown, the graphical user interface includes an opening and closing angle icon located at the upper part of the interface, an angle adjustment ruler located at the lower side of the opening and closing angle icon, and an idle automatic closing switch located at the lower part of the interface. The opening and closing angle icon can display 0-180 degrees, and the angle adjustment ruler can adjust 0-180 degrees. The angle adjusted by the angle adjustment ruler is consistent with the angle displayed by the opening and closing angle icon; that is, when the angle adjustment ruler is adjusted to a certain angle, the opening and closing angle icon displays the certain angle, such as in Fig. 20 In the operation angle adjustment ruler to 60 degrees, the opening and closing angle diagram shows 60 degrees, and the electronic device 100 will automatically unfold or fold to a bent unfolded state with a preset angle of 60 degrees. The idle automatic closing switch can be turned on or off. When the automatic unfolding or automatic folding function of the electronic device 100 is needed, the idle automatic closing switch can be turned on. When the automatic unfolding or automatic folding function of the electronic device 100 is not needed, the idle automatic closing switch can be closed. When the electronic device 100 is not used for a long time, it will automatically close according to the screen state.

[0157] Optionally, the angle measurement module of the electronic device 100 includes a Hall opening and closing angle detection component and an Imu angle detection component, and the Hall opening and closing angle detection component and the Imu angle detection component are respectively electrically connected to the mainboard 50. The Hall opening and closing angle detection component and the Imu angle detection component are used to detect the folding angle of the electronic device 100.

[0158] like Fig.21 As shown, the structure of the folding housing 20a in another embodiment of the present application is similar to the structure of the folding housing 20 in any of the above embodiments, except that: the folding housing 20a adds a manual control switch 70 on the basis of the folding housing 20, specifically, the driving assembly 24 includes a manual control switch 70 electrically connected to the driving member 240, and the manual control switch 70 is used to control the switching of the automatic switch and the non-automatic switch of the driving member 240; that is, the switching of the automatic switch and the non-automatic switch of the driving member 240 is realized by operating the manual control switch 70, when the manual control switch 70 turns on the automatic switch of the driving member 240, the mainboard 50 can control the driving member 240 to drive the output gear 244 to rotate; when the manual control switch 70 turns off the automatic switch of the driving member 240, the mainboard 50 cannot control the driving member 240 to drive the output gear 244 to rotate, and the electronic device 100 can only be folded or flattened by manual operation. Optionally, the manual control switch 70 can be arranged on but not limited to the back 212, side 214 or end face 215 of the frame 21. In this embodiment, the manual control switch 70 is disposed on the end surface 215 of one of the frames 21. The manual control switch 70 can be moved back and forth along the length of the end surface 215 to adjust the position of the driving member 240 or the reduction gear set 242, and is used to control whether the driving member 240 is stuck with the internal gear so that the output gear 244 provides power.

[0159] When the automatic folding or automatic unfolding function of the folding housing 20a is needed, the user manually toggles the manual control switch 70 in a first direction to adjust the position of the driving member 240 or the reduction gear set 242, so that the driving member 240 is stuck with the internal gear so that the output gear 244 can provide power, that is, the driving member 240 can drive the output gear 244 to rotate; when the folding housing 20a is needed to be manually folded or flattened, the user manually toggles the manual control switch 70 in a second direction to adjust the position of the driving member 240 or the reduction gear set 242, so that the driving member 240 is disengaged from the internal gear and the output gear 244 cannot provide power, that is, the driving member 240 cannot drive the output gear 244 to rotate. The first direction is opposite to the second direction.

[0160] The above is an implementation of the embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A foldable housing, characterized in that: The folding housing comprises: A folding device, the folding device comprising a gear assembly and a driving assembly, the gear assembly comprising a driving gear and a first driven gear meshed with the driving gear, the driving assembly comprising a driving member for driving the driving gear to rotate; and The frame body comprises at least two frames respectively disposed on opposite sides of the folding device, the driving gear is disposed on at least one of the two frames, the first driven gear is disposed on the other of the two frames, and the driving member can drive the driving gear to rotate to drive the first driven gear to rotate, so as to realize that the two frames are automatically unfolded or folded with each other.

2. The folding housing according to claim 1, characterized in that: The gear assembly further comprises a first shaft and a second shaft which are spaced apart in parallel, the first driven gear is fixedly sleeved on the first shaft, the driving gear is rotatably sleeved on the second shaft, and the axis of the first shaft is parallel to the folding axis between the two frames.

3. The folding housing according to claim 2, characterized in that: The gear assembly also includes a plurality of second driven gears fixedly sleeved on the second shaft, and the driving gear and the plurality of second driven gears are arranged along the axial direction of the second shaft; a plurality of first driven gears are fixedly sleeved on the first shaft, and the plurality of first driven gears are arranged along the axial direction of the first shaft, one of the plurality of first driven gears is meshed with the driving gear, and the others of the plurality of first driven gears are respectively meshed with the plurality of second driven gears.

4. The folding housing according to claim 2, characterized in that: There is a gap between the driving gear and the second shaft, and a lubricating material is arranged in the gap.

5. The folding housing according to claim 2, characterized in that: The outer diameter of the driving gear is greater than the outer diameter of the first driven gear, and the number of teeth in one circle of the driving gear is greater than the number of teeth in one circle of the first driven gear.

6. The folding housing according to claim 2, characterized in that: The gear assembly also includes a first connecting block and a second connecting block, the first shaft is fixedly connected to the first connecting block, the second shaft is fixedly connected to the second connecting block, the first connecting block is fixedly connected to one of the two frames, and the second connecting block is fixedly connected to the other of the two frames.

7. The folding housing according to claim 1, characterized in that: The driving member is a motor, and the driving assembly further includes a reduction gear set and an output gear. The reduction gear set is connected to the motor, and the output gear is connected to the reduction gear set through an output shaft, and the output gear is meshed with the driving gear.

8. The folding housing according to claim 1, characterized in that: The driving assembly further comprises a manual control switch electrically connected to the driving member, wherein the manual control switch is used to control the switching of the automatic switch or the non-automatic switch of the driving member.

9. An electronic device, characterized in that: The electronic device includes a folding shell as described in any one of claims 1 to 8, a flexible screen, and a mainboard arranged on the folding shell, the flexible screen includes a bendable area facing the folding device and two non-bending areas connected to opposite sides of the bendable area, the two non-bending areas are respectively arranged on two adjacent frames, and the mainboard is electrically connected to the flexible screen and the driving parts of the folding shell.

10. A method for unfolding or folding a flexible screen, characterized in that: Applied to the electronic device described in claim 9, the method comprises: Detecting the state of the electronic device; When the electronic device is in a folded state, the mainboard receives an unfolding instruction and controls the driving member to drive the driving gear to rotate in a first direction, so as to drive the first driven gear to rotate synchronously, so as to control the flexible screen of the electronic device to unfold from the folded state to the flattened state; When the electronic device is in a flattened state, the mainboard receives a folding instruction and controls the driving member to drive the driving gear to rotate in a second direction to drive the first driven gear to rotate synchronously to control the flexible screen of the electronic device to fold from the flattened state to the folded state.

11. The method for unfolding or folding a flexible screen according to claim 10, characterized in that: The electronic device further comprises a voice recognition module electrically connected to the main board, wherein the voice recognition module is used for voice recognition and sending an unfolding instruction or a folding instruction to the main board.

12. The method for unfolding or folding a flexible screen according to claim 10, characterized in that: The electronic device further comprises a pressure sensor electrically connected to the mainboard, wherein the pressure sensor is used to detect a touch pressure exerted thereon by a user.

13. The method for unfolding or folding a flexible screen according to claim 12, characterized in that: Also includes: Acquiring a pressure value of the touch pressure, and when the pressure value is greater than a first threshold, the mainboard controls the driving member to drive the driving gear to rotate in a first direction, so that the two frames are unfolded from a folded state to a flattened state; Or, the pressure value of the touch pressure is obtained, and when the pressure value is greater than a second threshold, the mainboard controls the driving member to drive the driving gear to rotate in a second direction, so that the two frames are folded from a flattened state to a fully folded state.

14. The method for unfolding or folding a flexible screen according to claim 10, characterized in that: After detecting the state of the electronic device, the method further includes: Determining whether the time for which the electronic device is placed on the support surface is greater than a preset time; Determining whether the flexible screen of the electronic device is in a flattened state, and whether the light emitting surface of the flexible screen is away from the supporting surface; The folding instruction is received and the driving member is controlled to drive the driving gear to rotate in a second direction, so that the two frames are folded from the flattened state to the folded state.

15. The method for unfolding or folding a flexible screen according to claim 10, characterized in that: The electronic device further comprises an angle measurement module electrically connected to the mainboard, wherein the angle measurement module is used to measure the folding angle of the electronic device; When the electronic device is in a folded state, the mainboard receives an unfolding instruction and obtains a hovering angle; controls the driving member to drive the driving gear to rotate in a first direction, so as to drive the first driven gear and the second driven gear to rotate synchronously, so as to control the flexible screen of the electronic device to unfold from the folded state; Determining whether the folding angle of the electronic device reaches the hovering angle; The driving member is controlled to stop driving the driving gear and the electronic device is kept at the folding angle.

16. The method for unfolding or folding a flexible screen according to claim 10, characterized in that: The electronic device further comprises an angle measurement module electrically connected to the mainboard, wherein the angle measurement module is used to measure the folding angle of the electronic device; When the electronic device is in a flattened state, the mainboard receives a folding instruction and obtains a hovering angle; controls the driving member to drive the driving gear to rotate in a second direction, so as to drive the first driven gear and the second driven gear to rotate synchronously, so as to control the flexible screen of the electronic device to fold from the flattened state; Determining whether the folding angle of the electronic device reaches the hovering angle; The driving member is controlled to stop driving the driving gear and the electronic device is kept at the folding angle.

17. The method for unfolding or folding a flexible screen according to claim 15 or 16, characterized in that: The angle measurement module includes a Hall opening and closing angle detection component and an Imu angle detection component, and the Hall opening and closing angle detection component and the Imu angle detection component are electrically connected to the mainboard respectively.

18. The method for unfolding or folding a flexible screen according to claim 10, characterized in that: The first direction is opposite to the second direction.

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