Bearing plate, flexible screen and electronic equipment

Abstract

The utility model provides a bearing plate, a flexible screen and electronic equipment. The bearing plate comprises a first fixing part, a first bending part, a second bending part, a third bending part and a second fixing part which are connected in sequence. When the bearing plate is in a folded state, the first fixing part and the second fixing part are arranged in a stacked mode, the first bending part, the second bending part and the third bending part are arranged in a stacked mode and located on the same side of the first fixing part and the second fixing part, and the second bending part comprises a first bending section, a second bending section and a third bending section which are sequentially connected. The first bending section is connected with the first bending part, the third bending section is connected with the third bending part, the second bending section is located between the first bending part and the third bending part, and the second bending section, the first bending part and the third bending part are arranged at intervals. According to the embodiment of the invention, the length-width ratio of the screen of the electronic equipment in the folded state and the unfolded state can accord with the use habit of a user.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a supporting plate, a flexible screen and an electronic device. Background Art

[0002] Foldable electronic devices currently on the market generally maintain the aspect ratio of ordinary straight-screen mobile phones when folded, which is conducive to providing users with a better grip and one-handed operation convenience. However, after the foldable electronic device is unfolded, the display screen is generally close to a square, and the square display screen does not conform to the current user habits. Therefore, how to make the foldable electronic device use the wide screen normally when folded, and form a rectangular screen that conforms to the user's usage habits after unfolding is an urgent problem to be solved. Utility Model Content

[0003] The embodiments of the present application provide a support plate, a flexible screen and an electronic device, which can make the aspect ratio of the screen of the electronic device in the folded state and the unfolded state conform to the user's usage habits.

[0004] In the first aspect, the present application provides a support plate, comprising a first fixed portion, a first bending portion, a second bending portion, a third bending portion, and a second fixed portion connected in sequence. When the support plate is in an unfolded state, the first fixed portion, the first bending portion, the second bending portion, the third bending portion, and the second fixed portion are arranged in sequence along the length direction of the support plate. When the support plate is in a folded state, the first fixed portion and the second fixed portion are stacked, the first bending portion, the second bending portion, and the third bending portion are stacked, and are located on the same side of the first fixed portion and the second fixed portion, the second bending portion comprises a first bending section, a second bending section, and a third bending section connected in sequence, the first bending section is connected to the first bending section, the third bending section is connected to the third bending section, the second bending section is located between the first bending section and the third bending section, and is spaced apart from the first bending section and the third bending section.

[0005] In the embodiment of the present application, the supporting plate is used to provide structural support for the display panel, and the bending or flattening of the supporting plate can drive the display panel to bend or flatten to achieve a desired bending shape or unfolding shape.

[0006] The first bending portion, the second bending portion and the third bending portion of the supporting plate can be bent under the action of an external force, so that the relative positions of the first fixing portion and the second fixing portion change to complete the folding action of the supporting plate. When the supporting plate is in a folded state, the second bending portion is located between the first bending portion and the second bending portion, and the second bending portion of the supporting plate is recessed inward, so the second bending portion does not increase the area of ​​the supporting plate after bending. Therefore, the area of ​​the electronic device using the supporting plate after folding can also maintain the screen size of the straight wide screen that the user is accustomed to. When the supporting plate is unfolded, the second bending portion unfolds, thereby increasing the supporting area of ​​the supporting plate. So that the supporting plate can support a display panel with a larger area.

[0007] In a possible implementation manner, when the supporting plate is in the unfolded state, a ratio of the length to the width of the supporting plate is greater than or equal to 16 / 9.

[0008] In an embodiment of the present application, when the supporting plate is unfolded, the area of ​​the display panel can be roughly the area of ​​two wide screens plus the flattened area of ​​the second bending portion. At this time, the shape of the display panel can be a rectangle, and the aspect ratio of the display panel is more in line with the user's usage habits.

[0009] In a possible implementation manner, when the supporting plate is in a folded state, the first bending section bends toward the first bending portion, and the third bending section bends toward the third bending portion.

[0010] In the embodiment of the present application, the first bending section can connect the second bending section and the first bending portion, and the second bending section can connect the second bending section and the third bending portion. In the folded state of the supporting plate, the middle portion of the second bending portion can be recessed toward the first fixing portion and the second fixing portion. The second bending portion can be hidden between the first bending portion and the third bending portion, thereby reducing the width of the folded supporting plate, so that the width of the folded state of the electronic device using the supporting plate is more suitable for the user to hold and operate with one hand.

[0011] In a possible embodiment, the second bending portion also includes a first connecting segment and a second connecting segment, the first connecting segment is connected between the first bending segment and the second bending segment, the second connecting segment is connected between the third bending segment and the second bending segment, the rigidity of the first connecting segment and the second connecting segment is greater than the rigidity of the first bending segment, the second bending segment and the third bending segment, and when the support plate is in a folded state, the first connecting segment, the second connecting segment and the second bending segment are bent into a water drop shape together.

[0012] In the embodiment of the present application, the first connecting section and the second connecting section can increase the size of the second bending portion in the Y direction, so that the second bending portion can provide a larger support area for the display panel. When the first bending portion, the second bending portion and the third bending portion are flattened, the part of the display panel carried by the first bending portion, the second bending portion and the third bending portion is pushed out. At this time, the aspect ratio of the display panel is more in line with the user's habit of using a large screen.

[0013] When the length adaptability of the first connecting section and the second connecting section increases, the lengths (dimensions along the Y direction) of the first bending section, the second bending section and the third bending section of the second bending portion can be appropriately reduced to reduce the radius of curvature of the bending portion of the second bending portion. This can minimize the space enclosed by the bending of the second bending portion, further reduce the bending volume of the second bending portion, and make the appearance of the electronic device using the support plate more concise when folded. The reduction in the volume of the bending portion of the electronic device can also reduce the probability of it being impacted by external forces, thereby improving the structural stability of the electronic device.

[0014] In a possible implementation, the first bending portion includes a fourth bending section, a third connecting section, and a fifth bending section connected in sequence, the third connecting section has a stiffness greater than that of the fourth bending section and the fifth bending section, the fourth bending section is connected to the first fixing portion on a side away from the third connecting section, the fourth bending section is bent away from the second bending section, the fifth bending section is connected to the second bending section on a side away from the third connecting section, and the fifth bending section is bent toward the second bending section. When the supporting plate is in a folded state, the third connecting section, the fifth bending section, the first bending section, and the first connecting section are bent together into a teardrop shape.

[0015] In the embodiment of the present application, when the first bending portion is subjected to external force, the fourth bending segment and the fifth bending segment are easier to bend, and the third connecting segment is less likely to bend than the fourth bending segment and the fifth bending segment.

[0016] In a possible implementation, the third bending portion includes a sixth bending section, a fourth connecting section, and a seventh bending section connected in sequence, the rigidity of the fourth connecting section is greater than the rigidity of the sixth bending section and the seventh bending section, the side of the sixth bending section facing away from the fourth connecting section is connected to the second fixing section, the sixth bending section is bent away from the second bending section, the side of the seventh bending section facing away from the fourth connecting section is connected to the second bending section, and the seventh bending section is bent toward the second bending section. When the supporting plate is in a folded state, the fourth connecting section, the seventh bending section, the third bending section, and the second connecting section are bent into a teardrop shape together, the second bending section is located between the third connecting section and the fourth connecting section, and is spaced apart from the third connecting section and the fourth connecting section.

[0017] In the embodiment of the present application, when the third bending portion is subjected to external force, the sixth bending segment and the seventh bending segment are easier to bend, and the fourth connecting segment is less likely to bend than the sixth bending segment and the seventh bending segment.

[0018] In a possible implementation manner, when the supporting plate is in a folded state, a distance between the third connecting section and the fourth connecting section gradually increases in a direction away from the first fixing portion and the second fixing portion.

[0019] In the embodiment of the present application, the space between the third connecting section and the fourth connecting section can provide a receiving position for the second bending portion. When the supporting plate is in a folded state, the second bending portion can be received between the third connecting section and the fourth connecting section.

[0020] In the second aspect, the present application provides a flexible screen, including a display panel and a supporting plate as described above, wherein the first display panel includes a first fixed area, a second fixed area, a first bending area, a second bending area and a third bending area, and along the length direction of the first display panel, the first fixed area, the first bending area, the second bending area, the third bending area and the second fixed area are arranged in sequence. The first fixed area is connected to the first fixed portion, the first bending area is connected to the first bending portion, the second bending area is connected to the second bending portion, the third bending area is connected to the third bending portion, and the second fixed area is connected to the second fixed portion. When the flexible screen is in a folded state, the first fixed area and the second fixed area are located between the first fixed portion and the second fixed portion, and are arranged relative to each other, the first bending area is located on the inner surface of the first bending portion, the second bending area is located on the inner surface of the second bending portion, and the third bending area is located on the inner surface of the third bending area.

[0021] In a possible implementation, the flexible screen further includes a second display panel, which is connected to a side of the first fixed portion facing away from the first display panel, and when the flexible screen is in a folded state, the second display panel is located on an outer surface of the first fixed portion.

[0022] In the embodiment of the present application, after the flexible screen of the electronic device is folded, the supporting plate can control the folding shape of the first display panel. The first display panel is folded and invisible. The second display panel is the main imaging screen of the electronic device. At this time, the electronic device can be conveniently held and operated by the user with one hand.

[0023] When the flexible screen is unfolded, the supporting plate can improve the flatness of the first display panel through its own rigidity, thereby effectively improving the display effect of the large screen of the electronic device.

[0024] In a possible implementation manner, an aspect ratio of the first display panel is greater than or equal to 7 / 6.

[0025] In the embodiment of the present application, the screen ratio of 7 / 6 is generally a commonly used ratio for display devices, etc. This is because common movie pictures or image information are generally produced with a length-to-width ratio of 7 / 6. In addition, the screen ratio of 7 / 6 has a unique impact on content delivery and display configuration. An optimized display configuration that follows this aspect ratio can ensure that the content fits seamlessly, minimizes distortion, and enhances viewer engagement. In addition, by strategically aligning display panels, content designers can create a cohesive visual experience that eliminates distractions and directs the viewer's attention.

[0026] In a third aspect, the present application provides an electronic device, comprising a first shell, a second shell, a hinge and the flexible screen as described above, wherein the first shell and the second shell are connected by a hinge, the first shell is connected to a first fixed part, and the second shell is connected to a second fixed part.

[0027] In the embodiment of the present application, the first shell and the second shell can support the flexible screen to ensure that the electronic device remains stable and strong during the folding and unfolding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are only some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained like these drawings without paying any creative work.

[0029] Figure 1 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application;

[0030] Figure 2 yes Figure 1 A schematic cross-sectional view of a first embodiment of an electronic device is shown;

[0031] Figure 3 yes Figure 2 A schematic structural diagram of a first embodiment of a supporting plate is shown;

[0032] Figure 4 yes Figure 3 A structural schematic diagram of the support plate in an unfolded state shown;

[0033] Figure 5 yes Figure 2 A structural schematic diagram of the electronic device in an unfolded state shown;

[0034] Figure 6 yes Figure 2 Another structural schematic diagram of the support plate shown;

[0035] Figure 7 yes Figure 3 The structural schematic diagram of the supporting plate shown is in a semi-flattened state;

[0036] Figure 8 yes Figure 1 A schematic structural diagram of a second embodiment of a supporting plate shown;

[0037] Fig. 9 yes Figure 1 A schematic structural diagram of a third embodiment of a supporting plate shown;

[0038] Fig.10 yes Figure 1 A schematic structural diagram of a fourth embodiment of a supporting plate shown;

[0039] Fig.11 is a schematic diagram of the structure of another electronic device provided in an embodiment of the present application;

[0040] Fig.12 yes Fig.11 A structural view of a support plate in an electronic device is shown. DETAILED DESCRIPTION

[0041] The specific embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can also be implemented in other ways different from those described herein, and therefore, the present application is not limited to the following embodiments.

[0042] For ease of understanding, the terms involved in the embodiments of the present application are first explained.

[0043] Multiple: refers to two or more than two.

[0044] Connection: should be understood in a broad sense. For example, A and B are connected, which can be either direct or indirect through an intermediary.

[0045] The specific implementation of the present application will be clearly described below in conjunction with the accompanying drawings.

[0046] See also Figure 1 , Figure 1 1 is a schematic diagram of the structure of an electronic device 100 provided in an embodiment of the present application, wherein the electronic device 100 is in an unfolded state. The electronic device 100 includes a first housing 10, a second housing 20, a hinge 40 and a flexible screen 30, and the first housing 10 and the second housing 20 are connected by the hinge 40. The first housing 10, the second housing 20 and the hinge 40 jointly support the flexible screen 30.

[0047] Figure 1 The X direction shown in FIG. 1 is the width direction of the electronic device 100 . Figure 1The Y direction shown in FIG. 1 is the length direction of the electronic device 100 . Figure 1 The Z direction shown in is the thickness direction of the electronic device 100. When the electronic device 100 is unfolded or folded, the length direction and thickness direction of the electronic device 100 change. It should be explained that since the electronic device 100 can be folded and unfolded, for the convenience of description, it is defined that when the electronic device 100 is unfolded, the relative positions of the X direction, the Y direction and the Z direction with the first shell 10 of the electronic device 100 remain unchanged. That is, during the unfolding or folding process of the electronic device 100, it can be considered that other components of the electronic device 100 move relative to the first shell 10.

[0048] It should be noted that Figure 1 The purpose is only to schematically describe the connection relationship between the first housing 10, the second housing 20, the hinge 40 and the flexible screen 30, and it does not specifically limit the connection position, specific structure and quantity of each device. The structure illustrated in the embodiment of the present application does not constitute a specific limitation on the electronic device 100. In other embodiments of the present application, the electronic device 100 may include Figure 1 More or fewer components may be shown, or some components may be combined or separated, or the components may be arranged differently.

[0049] The first housing 10 can be folded relative to the second housing 20 via the hinge 40, thereby realizing the folding function of the electronic device 100. The first housing 10 and the second housing 20 are respectively connected to both ends of the length direction of the flexible screen 30. When the first housing 10 and the second housing 20 are folded via the hinge 40, the area of ​​the flexible screen 30 corresponding to the hinge 40 can be bent and deformed.

[0050] In the embodiment of the present application, the first shell 10 and the second shell 20 can support the flexible screen 30 to ensure that the electronic device 100 remains stable and strong during the folding and unfolding process.

[0051] Secondly, when the electronic device 100 is in a folded state, the first housing 10 and the second housing 20 can fix the flexible screen 30 to prevent the flexible screen 30 from loosening or being damaged. When the electronic device 100 is in an unfolded state, the first housing 10 and the second housing 20 ensure that the flexible screen 30 can be unfolded smoothly to provide a good visual experience.

[0052] The hinge 40 may be a retractable structure. When the electronic device 100 is in a folded state, the hinge 40 may be in a retracted state, and the hinge 40 may be located outside the bent portion of the flexible screen 30. At this time, the hinge 40 may provide structural support for the flexible screen 30 and protect the bent portion of the flexible screen 30. When the electronic device 100 is in a stretched state, the width of the hinge 40 in the X direction may increase, thereby matching the unfolded width of the bent portion of the flexible screen 30.

[0053] The flexible screen 30 provided in the embodiment of the present application can be applied to foldable devices such as foldable mobile phones, foldable tablet computers, laptop computers, foldable e-books, etc. When the electronic device 100 is folded, the flexible screen 30 is folded accordingly, thereby reducing the screen area of ​​the electronic device 100 to improve portability. When the electronic device 100 is unfolded, the flexible screen 30 is unfolded accordingly, thereby providing a larger display area to improve the user's convenience.

[0054] Foldable electronic devices currently on the market generally maintain the aspect ratio of ordinary straight-screen mobile phones when folded, which is conducive to providing users with a better grip and one-handed operation convenience. However, after the electronic device is unfolded, the display screen is generally close to a square, and the square display screen does not conform to the current user habits. Therefore, how to make the foldable electronic device use the normal wide screen in the folded state, and form a rectangular screen that conforms to the user's usage habits after unfolding is an urgent problem to be solved.

[0055] Based on this, an embodiment of the present application provides a flexible screen 30, which can make the aspect ratio of the display panel of the electronic device 100 in the folded state and the unfolded state conform to the user's usage habits.

[0056] Please continue reading Figure 1 The flexible screen 30 includes a supporting plate 31 and a display portion 32. The supporting plate 31 is connected to the non-display side of the display portion 32.

[0057] In the embodiment of the present application, the supporting plate 31 can provide certain support for the display part 32 and control the shape of the flexible screen 30 during the folding or unfolding of the flexible screen 30.

[0058] In the first possible embodiment, please refer to Figure 2 , Figure 3 and Figure 4 , Figure 2 yes Figure 1 FIG. 1 is a schematic cross-sectional view of a first embodiment of an electronic device 100 . Figure 3 yes Figure 2 The structural schematic diagram of the first embodiment of the supporting plate 31 is shown, wherein the supporting plate 31 is in a bent state. Figure 4 yes Figure 3A structural schematic diagram of the unfolded state of the supporting plate 31 shown. The supporting plate 31 includes a first fixing portion 311, a first bending portion 312, a second bending portion 313, a third bending portion 314 and a second fixing portion 315 arranged in sequence. Along the unfolded length direction of the supporting plate 31, the first fixing portion 311, the first bending portion 312, the second bending portion 313, the third bending portion 314 and the second fixing portion 315 are arranged in sequence. Among them, the unfolded length direction of the supporting plate 31 is the unfolded length direction of the electronic device 100. Exemplarily, the material of the supporting plate 31 can be a metal sheet, a carbon fiber board, a glass fiber board, etc.

[0059] See also Figure 5 , Figure 5 yes Figure 2 The structure diagram of the electronic device 100 in the unfolded state is shown. The first fixing portion 311 can be fixedly connected to the first housing 10. The second fixing portion 315 can be fixedly connected to the second housing 20. The first fixing portion 311 and the second fixing portion 315 are arranged at intervals.

[0060] Please refer to Figure 3 The first bending portion 312 includes a fourth bending section 3121, a third connecting section 3122, and a fifth bending section 3123 connected in sequence. The third connecting section 3122 has a stiffness greater than that of the fourth bending section 3121 and the fifth bending section 3123. The side of the fourth bending section 3121 facing away from the third connecting section 3122 is connected to the first fixing portion 311. The side of the fifth bending section 3123 facing away from the third connecting section 3122 is connected to the second bending portion 313.

[0061] The present application also provides several different implementations of the first bending portion 312 to schematically illustrate the stiffness adjustment methods of different parts of the first bending portion 312 .

[0062] In a first possible implementation, the thickness of the third connecting section 3122 may be greater than the thickness of the fourth bending section 3121 and the fifth bending section 3123. Specifically, the bending degree of the plate is closely related to its thickness. Generally, the thicker the plate is, the less likely it is to bend, while the thinner the plate is, the easier it is to bend to a certain extent. This is because the ability of a plate with a smaller thickness to resist bending deformation is weaker when subjected to external force. When an external force acts on the plate, stress concentration is more likely to occur at a location with a smaller thickness, which makes it more likely for that location to bend.

[0063] In the embodiment of the present application, when the first bending portion 312 is subjected to external force, the fourth bending segment 3121 and the fifth bending segment 3123 are easier to bend, and the third connecting segment 3122 is less likely to bend than the fourth bending segment 3121 and the fifth bending segment 3123 .

[0064] In a second possible implementation, the material density of the third connecting section 3122 may be greater than the material density of the fourth bending section 3121 and the fifth bending section 3123. Specifically, the first bending portion 312 may be made of the same material as a whole. When the weight of the material per unit volume is different in different regions, the region with a smaller weight of the material per unit volume (i.e., a smaller material density) is more likely to be bent. Specifically, when the plate is subjected to an external force, its ability to resist deformation is closely related to the strength of the material's internal structure. For the position with a lower density in the plate, due to its relatively loose internal structure, the connection between the fibers or particles may not be tight enough, resulting in a lower strength. Therefore, under the action of an external force, the plate with a lower density is more likely to deform, i.e., more likely to bend. Therefore, when the first bending portion 312 is subjected to an external force, the fourth bending section 3121 and the fifth bending section 3123 are more likely to bend, and the third connecting section 3122 is less likely to bend than the fourth bending section 3121 and the fifth bending section 3123.

[0065] For a third possible implementation, see Figure 6 , Figure 6 yes Figure 2 Another structural schematic diagram of the supporting plate 31 is shown. The fourth bending section 3121 and the fifth bending section 3123 may also be provided with a plurality of openings 3124. The openings 3124 penetrate the fourth bending section 3121 and the fifth bending section 3123 of the first bending portion 312 along the thickness direction of the first bending portion 312. Alternatively, the openings 3124 may be blind holes.

[0066] Since the fourth bending section 3121 and the fifth bending section 3123 are provided with the opening 3124, the rigidity of the fourth bending section 3121 and the fifth bending section 3123 is less than the rigidity of the third connecting section 3122 without the opening 3124. When the first bending portion 312 is bent, the fourth bending section 3121 and the fifth bending section 3123 provided with the opening 3124 are more likely to bend and deform. When the supporting plate 31 is subjected to an external force, the fourth bending section 3121 and the fifth bending section 3123 of the first bending portion 312 are more likely to be bent. In actual use, after an external force is applied to the electronic device 100, the fourth bending section 3121 and the fifth bending section 3123 in the first bending portion 312 of the supporting plate 31 may be elastically deformed, and the third connecting section 3122 may not be deformed.

[0067] The plurality of openings 3124 provided on the fourth bending section 3121 may be arranged in an array on the fourth bending section 3121. The plurality of openings 3124 may be arranged in multiple columns. The extending direction of each column of the openings 3124 is the X direction. The openings 3124 in two adjacent columns may be staggered so that different regions of the fourth bending section 3121 are subjected to a more uniform force.

[0068] When the opening 3124 is a through hole, the aperture of the opening 3124 can be gradually increased in the direction from the inner surface of the fourth bending section 3121 to the outer surface. When the opening 3124 is a blind hole, the aperture of the opening 3124 can be gradually increased in the direction from the inner surface of the fourth bending section 3121 to the outer surface. The inner surface of the fourth bending section 3121 refers to the surface facing the second bending portion 313 after the fourth bending section 3121 is bent. The outer surface of the fourth bending section 3121 refers to the surface facing away from the second bending portion 313 after the fourth bending section 3121 is bent.

[0069] In the embodiment of the present application, the opening 3124 can adjust the rigidity of the fourth bending section 3121. The inner surface of the fourth bending section 3121 can have fewer openings of the opening 3124, or no opening of the opening 3124. The bending radius of the inner surface of the fourth bending section 3121 is large, and it does not need to be bent to a large extent. The outer surface of the fourth bending section 3121 can be provided with more openings of the opening 3124, and the opening area of ​​the opening 3124 on the outer surface of the fourth bending section 3121 is large. The bending radius of the outer surface of the fourth bending section 3121 is smaller than the bending radius of the inner surface. Therefore, the bending degree of the outer surface of the fourth bending section 3121 is large, and the outer surface of the fourth bending section 3121 can have a larger elastic deformation space by providing the opening 3124.

[0070] In addition, in a specific implementation, the cross-sectional profile of the opening 3124 can be circular, elliptical or other shapes. For example, in the embodiment provided in the present application, the opening 3124 can be an oblong hole. The length direction of the opening 3124 can be parallel to the X direction.

[0071] In the embodiment of the present application, the supporting plate 31 can be bent in the Y direction, that is, the supporting plate 31 can be bent to change its size in the Y direction. When the first bending portion 312 of the supporting plate 31 is bent, the fourth bending segment 3121 and the fifth bending segment 3123 are elastically deformed, so that the relative positions of the first fixing portion 311 and the second bending portion 313 at both ends of the first bending portion 312 are changed. At this time, the shape of the opening 3124 can change.

[0072] The multiple openings 3124 provided on the fifth bending section 3123 can be arranged in an array on the fifth bending section 3123. The multiple openings 3124 can be arranged in multiple columns. Among them, the extension direction of each column of the openings 3124 is the X direction. The openings 3124 in two adjacent columns can be staggered so that different areas of the fifth bending section 3123 are more evenly stressed. When the openings 3124 are through holes, the aperture of the openings 3124 can be gradually reduced in the direction from the inner surface of the fifth bending section 3123 toward the outer surface. When the openings 3124 are blind holes, the aperture of the openings 3124 can be gradually reduced in the direction from the inner surface of the fifth bending section 3123 toward the outer surface. Among them, the inner surface of the fifth bending section 3123 refers to the surface of the fifth bending section 3123 facing the second bending portion 313 after the bending. The outer surface of the fifth bending segment 3123 refers to the surface of the fifth bending segment 3123 that is away from the second bending portion 313 after being bent.

[0073] In the embodiment of the present application, the opening 3124 can adjust the rigidity of the fifth bending section 3123. The outer surface of the fifth bending section 3123 can have fewer openings of the opening 3124, or no opening of the opening 3124. The bending radius of the outer surface of the fifth bending section 3123 is large, and it does not need to be bent to a large extent. The inner surface of the fifth bending section 3123 can be provided with more openings of the opening 3124, and the opening area of ​​the opening 3124 on the inner surface of the fifth bending section 3123 is large. The bending radius of the inner surface of the fifth bending section 3123 is smaller than the bending radius of the outer surface. Therefore, the bending degree of the inner surface of the fifth bending section 3123 is large, and the inner surface of the fifth bending section 3123 can have a larger elastic deformation space by setting the opening 3124.

[0074] The density of the openings 3124 on the fifth bending segment 3123 may be greater than the density of the openings 3124 on the fourth bending segment 3121. The length of the openings 3124 on the fifth bending segment 3123 may be greater than the length of the openings 3124 on the fourth bending segment 3121.

[0075] In the embodiment of the present application, the fourth bending section 3121 of the first bending portion 312 can be slightly bent, and the shape of the opening 3124 can be changed to adapt to the bending deformation of the fourth bending section, so as to transition between the first fixing portion 311 of the supporting plate 31 and the third connecting section 3122 of the first bending portion 312. The fifth bending section 3123 of the first bending portion 312 can be bent to a greater extent, and the shape of the opening 3124 can be changed to adapt to the bending deformation of the fifth bending section 3123, so as to make a smooth transition between the second bending portion 313 of the supporting plate 31 and the third connecting section 3122 of the first bending portion 312.

[0076] Please refer to Figure 3The second bending portion 313 includes a first bending segment 3131, a second bending segment 3132, and a third bending segment 3133 connected in sequence. The first bending segment 3131 is connected to the fifth bending segment 3123 of the first bending portion 312. The third bending segment 3133 is connected to the third bending portion 314, for example, the third bending segment 3133 is connected to the seventh bending segment 3143 of the third bending portion 314.

[0077] The rigidity of the first bending section 3131, the second bending section 3132 and the third bending section 3133 may be smaller than the rigidity of the third connecting section 3122. When the first bending section 312 and the second bending section 313 are acted upon by an external force, the fourth bending section 3121, the fifth bending section 3123, the first bending section 3131, the second bending section 3132 and the third bending section 3133 may be elastically deformed, and the third connecting section 3122 may not be deformed.

[0078] Among them, in some possible embodiments, the rigidity adjustment method of the first bending section 3131, the second bending section 3132 and the third bending section 3133 can refer to the description of the fifth bending portion above. For example, the material thickness of the first bending section 3131, the second bending section 3132 and the third bending section 3133 can be less than the material thickness of the third connecting section 3122. Alternatively, the material density of the first bending section 3131, the second bending section 3132 and the third bending section 3133 can be less than the material density of the third connecting section 3122. Alternatively, the first bending section 3131, the second bending section 3132 and the third bending section 3133 can be provided with openings 3124. The openings 3124 can be arranged in an array on the first bending section 3131, the second bending section 3132 and the third bending section 3133. The present application does not further elaborate on the stiffness adjustment method of the first bending segment 3131 , the second bending segment 3132 and the third bending segment 3133 .

[0079] Specifically, the stiffness of the first bending segment 3131, the stiffness of the second bending segment 3132, and the stiffness of the third bending segment 3133 may be the same or different. The stiffness of the first bending segment 3131 and the stiffness of the third bending segment 3133 may be the same, and the stiffness of the first bending segment 3131 and the stiffness of the third bending segment 3133 may be greater than the stiffness of the second bending segment 3132. Alternatively, the stiffness of the first bending segment 3131 and the stiffness of the third bending segment 3133 may be less than the stiffness of the second bending segment 3132.

[0080] The adjustment methods of the stiffness of the first bending section 3131, the stiffness of the second bending section 3132, and the stiffness of the third bending section 3133 can be selected from one or more of the above-mentioned methods, and the present application does not impose specific restrictions on the stiffness of the first bending section 3131, the stiffness of the second bending section 3132, and the stiffness of the third bending section 3133. In fact, the stiffness of the first bending section 3131, the stiffness of the second bending section 3132, and the stiffness of the third bending section 3133 only need to meet the bending angle of the flexible screen 30 under the action of external force.

[0081] It should be noted that the first bending section 3131, the second bending section 3132 and the third bending section 3133 are divided only to illustrate the shape of the second bending section 313 in the folded state. In some possible embodiments, when the stiffness of the first bending section 3131, the stiffness of the second bending section 3132 and the stiffness of the third bending section 3133 are the same, and the stiffness adjustment methods of the first bending section 3131, the second bending section 3132 and the third bending section 3133 are the same, the first bending section 3131, the second bending section 3132 and the third bending section 3133 are a whole, and there is no boundary between them.

[0082] The side of the first bending section 3131 facing away from the second bending section 3132 is connected to the first bending portion 312. The side of the third bending section 3133 facing away from the second bending section 3132 is connected to the third bending portion 314.

[0083] The third bending portion 314 includes a sixth bending segment 3141, a fourth connecting segment 3142, and a seventh bending segment 3143 connected in sequence. The rigidity of the fourth connecting segment 3142 is greater than that of the sixth bending segment 3141 and the seventh bending segment 3143. The side of the sixth bending segment 3141 facing away from the fourth connecting segment 3142 is connected to the second fixing portion 315, and the side of the seventh bending segment 3143 facing away from the fourth connecting segment 3142 is connected to the third bending segment 3133 of the second bending portion 313.

[0084] Please refer to Figure 3 , the third bending portion 314 can be symmetrically arranged with the first bending portion 312 about the second bending portion 313. The specific structure of the third bending portion 314 can refer to the above description of the first bending portion 312. Specifically, the specific structure of the sixth bending section 3141 of the third bending portion 314 can refer to the above description of the fourth bending section 3121 of the first bending portion 312. The specific structure of the seventh bending section 3143 of the third bending portion 314 can refer to the above description of the fifth bending section 3123 of the first bending portion 312. The specific structure of the fourth connecting section 3142 of the third bending portion 314 can refer to the above description of the fourth connecting section 3142 of the first bending portion 312. The specific structure of the third bending portion 314 is not repeated in this application.

[0085] In the embodiment of the present application, the supporting plate 31 can provide certain structural support for the display portion 32, and the bending or flattening of the supporting plate 31 can drive the display portion 32 to bend or flatten to achieve a desired bending shape or unfolding shape.

[0086] Please refer to Figure 4 When the support plate 31 is in the unfolded state, all parts of the support plate 31 are in the flattened state. The first fixing portion 311, the first bending portion 312, the second bending portion 313, the third bending portion 314 and the second fixing portion 315 form a plate-like structure. The ratio of the length to the width of the plate-like structure may be greater than or equal to 7 / 6. For example, the ratio of the length to the width of the plate-like structure may be 4 / 3 (allowing tolerance). Among them, the direction in which the second fixing portion 315 points to the first fixing portion 311 is the length direction (Y direction) of the support plate 31, and the width direction (X direction) is perpendicular to the length direction.

[0087] Specifically, in some embodiments, the first fixed portion 311, the fourth bending section 3121 of the first bending portion 312, the third connecting section 3122 of the first bending portion 312, the fifth bending section 3123 of the first bending portion 312, the first bending section 3131 of the second bending portion 313, the second bending section 3132 of the second bending portion 313, the third bending section 3133 of the second bending portion 313, the seventh bending section 3143 of the third bending portion 314, the fourth connecting section 3142 of the third bending portion 314, the sixth bending section 3141 of the third bending portion 314 and the second fixed portion 315 are connected in sequence along the length direction of the supporting plate 31 and are located on the same plane.

[0088] Please refer to Figure 3 When the supporting plate 31 is in a folded state, the first bending portion 312, the second bending portion 313 and the third bending portion 314 are stacked and located on the same side of the first fixing portion 311 and the second fixing portion 315 in the opposite direction to the Y direction. Each bending segment of the supporting plate 31 (the first bending segment 3131, the second bending segment 3132, the third bending segment 3133, the fourth bending segment 3121, the fifth bending segment 3123, the sixth bending segment 3141 and the seventh bending segment 3143) is deformed. Specifically, the first fixing portion 311 and the second fixing portion 315 are close to each other, and the first fixing portion 311 and the second fixing portion 315 are stacked and spaced apart. The third connecting segment 3122 of the first bending portion 312 can be tilted relative to the first fixing portion 311. The fourth bending section 3121 bends toward a side away from the folding direction, that is, the fourth bending section 3121 bends away from the second bending portion 313 .

[0089] The support plate 31 includes an outer surface 3101 and an inner surface 3102. The outer surface 3101 and the inner surface 3102 are arranged opposite to each other in the thickness direction of the support plate 31. The folding direction is the direction in which the outer surface 3101 of the support plate 31 points to the inner surface 3102 of the support plate 31 after the support plate 31 is folded. The bending of a certain part of the support plate 31 toward the folding direction can be understood as bending toward the inner side of the support plate 31 after folding, and the center of curvature of this part of the bent support plate 31 is located on one side of the inner surface 3102 after the part is folded, that is, at least part of this part of the bent support plate 31 is convexly arranged toward the outer side of the support plate 31 after folding. For example, the middle part of this part of the bent support plate 31 is convexly arranged toward the outer side of the support plate 31 after folding. The outer side of the support plate 31 after folding is the side of the outer surface 3101 of the support plate 31 after folding that is away from the inner surface 3102. The bending of a certain part of the support plate 31 away from the folding direction can be understood as bending away from the inner surface 3102 of the support plate 31 after folding, and the center of curvature of this part of the support plate 31 is located on one side of the outer surface 3101 of the folded part. In other words, at least part of this part of the bent support plate 31 is convexly arranged toward the inner side of the folded support plate 31. For example, the middle part of this part of the bent support plate 31 is convexly arranged toward the inner side of the folded support plate 31. Among them, the inner side of the folded support plate 31 is the side of the inner surface 3102 of the folded support plate 31 that is away from the outer surface 3101.

[0090] The fifth bending section 3123 of the first bending portion 312 is connected to the side of the third connecting section 3122 away from the fourth bending section 3121, and is bent toward the folding direction, and at least a portion of the fifth bending section 3123 is protruded toward the outer side of the folded fifth bending section 3123. For example, the middle portion of the fifth bending section 3123 is protruded toward the outer side of the folded fifth bending section 3123. The fifth bending section 3123 is bent toward the second bending portion 313. The fifth bending section 3123 can extend toward the Z direction.

[0091] The fourth connecting section 3142 of the third bending portion 314 can be arranged obliquely relative to the second fixing portion 315. There is a gap between the fourth connecting section 3142 of the third bending portion 314 and the third connecting section 3122 of the first bending portion 312, and the gap gradually increases along the opposite direction of the Y direction. The sixth bending section 3141 is located between the second fixing portion 315 and the fourth connecting section 3142, and the sixth bending section 3141 is bent away from the folding direction, that is, the sixth bending section 3141 is bent away from the second bending portion 313. At least part of the sixth bending section 3141 is arranged to protrude toward the inner side of the sixth bending section 3141 after it is folded. For example, the middle part of the sixth bending section 3141 is arranged to protrude toward the inner side of the sixth bending section 3141 after it is folded. The seventh bending section 3143 is connected to the fourth connecting section 3142, and the seventh bending section 3143 is bent toward the folding direction, that is, the seventh bending section 3143 is bent toward the second bending portion 313. The side of the seventh bending section 3143 away from the fourth connecting section 3142 extends in the opposite direction of the Z direction, and is opposite to and spaced from the side of the fifth bending section 3123 away from the third connecting section 3122. At least a portion of the seventh bending section 3143 is protruded toward the outer side of the seventh bending section 3143 after folding. For example, the middle portion of the seventh bending section 3143 is protruded toward the outer side of the seventh bending section 3143 after folding.

[0092] The second bending portion 313 is located in the gap between the third connecting section 3122 and the fourth connecting section 3142, and the second bending portion 313 is spaced apart from the third connecting section 3122 of the first bending portion 312 and the fourth connecting section 3142 of the third bending portion 314. One end of the second bending portion 313 is connected to the fifth bending section 3123 of the first bending section 3131, and the other end is connected to the seventh bending section 3143 of the third bending portion 314. The middle part of the second bending portion 313 is recessed toward the first fixing portion 311 and the second fixing portion 315 to form an arc surface. The center of curvature of the arc surface of the middle part of the second bending portion 313 is located on the side of the second bending portion 313 away from the first fixing portion 311 and the second fixing portion 315, that is, the middle part of the second bending portion 313 is bent away from the folding direction. At least part of the seventh bending section 3143 is convexly arranged toward the outer side of the seventh bending section 3143 after folding. For example, the middle portion of the seventh bending segment 3143 is protruded toward the outer side of the folded seventh bending segment 3143 .

[0093] Specifically, the first bending section 3131 of the second bending portion 313 is bent toward the folding direction, and the first bending section 3131 and the fifth bending section 3123 can be smoothly transitioned. The first bending section 3131 and the fifth bending section 3123 can form a curved arc surface with the same center of curvature, and the center of curvature is located on the side of the first bending section 3131 and the fifth bending section 3123 facing the folding direction. Alternatively, the first bending section 3131 and the fifth bending section 3123 may not have the same center of curvature.

[0094] The third bending section 3133 of the second bending portion 313 is bent toward the folding direction, and the third bending portion 314 and the seventh bending section 3143 can be smoothly transitioned. The third bending portion 314 and the seventh bending section 3143 can form a curved arc surface with the same center of curvature, and the center of curvature is located on the side of the third bending portion 314 and the seventh bending section 3143 facing the folding direction. Alternatively, the third bending portion 314 and the seventh bending section 3143 may not have the same center of curvature.

[0095] The second bending section 3132 is connected between the third bending section 3133 and the first bending section 3131. When the supporting plate 31 is in a folded state, the center of curvature of the second bending section 3132 is located on the side of the second bending section 3132 away from the first fixing portion 311 and the second fixing portion 315. That is, the second bending section 3132 is bent away from the folding direction. At least a portion of the second bending section 3132 is convexly arranged toward the inner side of the second bending section 3132 after folding. For example, the middle portion of the second bending section 3132 is convexly arranged toward the inner side of the second bending section 3132 after folding. Among them, the center of curvature of the second bending section 3132 can be located in the gap between the third connecting section 3122 and the fourth connecting section 3142. The cross-sectional profile of the second bending section 3132 can be drop-shaped.

[0096] The side of the second bending portion 313 facing the first bending portion 312 can form a teardrop-shaped profile (cross-sectional profile) with the first bending portion 312. The side of the second bending portion 313 facing the third bending portion 314 can form a teardrop-shaped profile (cross-sectional profile) with the third bending portion 314. Specifically, when the supporting plate 31 is in the folded state, the third connecting section 3122, the fifth bending section 3123, and the first bending section 3131 are bent together into a teardrop shape. The fourth connecting section 3142, the seventh bending section 3143, and the third bending section 3133 are bent together into a teardrop shape.

[0097] In the embodiment of the present application, the first bending section 3131, the second bending section 3132, the third bending section 3133, the fourth bending section 3121, the fifth bending section 3123, the sixth bending section 3141 and the seventh bending section 3143 have greater flexibility than the first fixing portion 311, the third connecting section 3122, the fourth connecting section 3142 and the second fixing portion 315. When the supporting plate 31 is subjected to an external force, the first bending section 3131, the second bending section 3132, the third bending section 3133, the fourth bending section 3121, the fifth bending section 3123, the sixth bending section 3141 and the seventh bending section 3143 may be bent. Since the first bending section 3131, the second bending section 3132, the third bending section 3133, the fourth bending section 3121, the fifth bending section 3123, the sixth bending section 3141 and the seventh bending section 3143 have different bending directions, the relative positions of the first fixing portion 311, the third connecting section 3122, the fourth connecting section 3142 and the second fixing portion 315 can be changed, so that the supporting plate 31 can complete the folding action.

[0098] When the support plate 31 completes the folding action, the second bending portion 313 of the support plate 31 is recessed inward, so the second bending portion 313 will not increase the area of ​​the support plate 31 after bending. Since the second bending portion 313 will not increase the folding area of ​​the support plate 31, the area of ​​the electronic device 100 using the support plate 31 after folding can also maintain the screen size of the straight wide screen that the user is accustomed to. When the support plate 31 is unfolded, the second bending portion 313 is unfolded, thereby increasing the support area of ​​the support plate 31. So that the support plate 31 can support a larger area of ​​the display part 32. When the support plate 31 is unfolded, the area of ​​the display part 32 can be roughly the area of ​​two wide screens plus the flattened area of ​​the second bending portion 313. At this time, the shape of the display part 32 can be a rectangle, and the aspect ratio of the display part 32 is more in line with the user's usage habits.

[0099] When the support plate 31 is in the folded state, the first bend 312, the second bend 313 and the third bend 314 form three teardrop-shaped structures, which makes the support plate 31 have a more natural and smooth movement trajectory during the folding process. The teardrop-shaped first bend 312, the second bend 313 and the third bend 314 are designed to be curved rather than straight, which helps to reduce the resistance of the support plate 31 when it is bent, making the movement of the support plate 31 smoother when it is folded. At the same time, since the first bend 312, the second bend 313 and the third bend 314 are all smooth transitions, the first bend 312, the second bend 313 and the third bend 314 are subjected to a more uniform force, thereby increasing the stability of the support plate 31 in the folded state.

[0100] The three teardrop-shaped structures formed by the first bending portion 312 , the second bending portion 313 and the third bending portion 314 can also help reduce the screen creases of the display portion 32 and improve the flatness of the display portion 32 after unfolding, thereby improving the user's viewing experience and enhancing the user's usage experience.

[0101] Please refer to Figure 2 The display portion 32 includes a first display panel 322 and a second display panel 321. The first display panel 322 and the second display panel 321 are located at opposite sides of the supporting plate 31 in the thickness direction.

[0102] The aspect ratio of the display area of ​​the second display panel 321 may be greater than or equal to 16 / 9. For example, the aspect ratio of the display area of ​​the second display panel 321 may be 20 / 9 (allowing tolerance). When the electronic device 100 is in the unfolded state, the second display panel 321 may be disposed on the first housing 10. The second display panel 321 may be located on the side of the first fixing portion 311 of the supporting plate 31 away from the first display panel 322. When the electronic device 100 is in the folded state, the second display panel 321 is located on one side of the outer surface of the first fixing portion 311. Exemplarily, the second display panel 321 may be bonded to the first housing 10 by double-sided tape or by an adhesive layer comprising a material such as polyurethane, polyethylene, or polypropylene.

[0103] The first display panel 322 includes a first fixed area 3221, a second fixed area 3225, a first bending area 3222, a second bending area 3223 and a third bending area 3224. When the first display panel is in the unfolded state, the first fixed area 3221, the first bending area 3222, the second bending area 3223, the third bending area 3224 and the second fixed area 3225 are arranged in sequence. It should be noted that the first display panel 322 as a whole can be a flexible panel structure. The composition structure of the fixed area (the first fixed area 3221 and the second fixed area 3225) and the bending area (the first bending area 3222, the second bending area 3223 and the third bending area 3224) of the first display panel 322 can be the same. The purpose of dividing the first display panel 322 into multiple areas in this application is to facilitate a clear description of the first display panel 322 in the folded state and the unfolded state, and it is not to divide the structure of different areas of the first display panel 322.

[0104] The aspect ratio of the first display panel 322 in the unfolded state may be greater than or equal to 7 / 6. The aspect ratio of the display area of ​​the first display panel 322 is greater than or equal to 7 / 6. For example, the aspect ratio of the display area of ​​the first display panel 322 may be greater than or equal to 4 / 3 (allowing tolerance). The first display panel 322 may be connected to the inner surfaces of the first fixing portion 311, the first bending portion 312, the second bending portion 313, the third bending portion 314, and the second fixing portion 315 of the supporting plate 31. Specifically, in some embodiments, the first fixing area 3221 is connected to the inner surface of the first fixing portion 311. The second fixing area 3225 is connected to the inner surface of the second fixing portion 315. The first bending area 3222 is connected to the inner surface of the first bending portion 312. The second bending area 3223 is connected to the inner surface of the second bending portion 313. The third bending area 3224 is connected to the inner surface of the third bending portion 314. Among them, the inner surfaces of the first fixed portion 311, the first bending portion 312, the second bending portion 313, the third bending portion 314 and the second fixed portion 315 refer to the surfaces of the first fixed portion 311, the first bending portion 312, the second bending portion 313, the third bending portion 314 and the second fixed portion 315 that are folded and hidden when the supporting plate 31 is in a folded state.

[0105] In a specific implementation, the shape, outline and size of the first display panel 322 may be the same as those of the supporting plate 31. For example, in one embodiment provided in the present application, the first display panel 322 and the supporting plate 31 have a rectangular structure of the same size. One of the board surfaces of the supporting plate 31 is completely in contact with the non-display surface of the first display panel 322 to enhance the connection strength between the supporting plate 31 and the first display panel 322 and the consistency during bending deformation, so that the supporting plate 31 can effectively control the folding posture of the first display panel 322.

[0106] The first display panel 322 uses flexible materials as substrates, such as polymers (mainly polyimide) and metals, which enable them to be bent, folded, and even curled. Compared with traditional rigid screens, the flexible panel structure has higher impact resistance and durability, is not easy to break, and can withstand greater pressure and bending during use.

[0107] Exemplarily, the first display panel 322 and the second display panel 321 can be an organic light-emitting diode display panel (Organic Light-Emitting Diode, OLED), and the OLED panel has a display technology with self-luminous characteristics. It uses a very thin organic material coating and a glass substrate (or a flexible organic substrate), and these organic materials will emit light when current passes through. Since OLED is self-luminous, it does not require a backlight source, so the power consumption is low and power consumption can be saved. Secondly, the OLED panel is light in weight, has a high shock resistance coefficient, and has a large viewing angle, which can generally reach about 170 degrees, providing users with a wider field of view. In addition, OLED has a fast response speed, and the response time is only in the microsecond level, which makes it have an advantage in dynamic image display. At the same time, because the organic plastic layer of OLED is thinner, lighter and more flexible, it can produce a lighter and thinner display device.

[0108] Please refer to Figure 5 and Figure 7 , Figure 7 yes Figure 3 A schematic diagram of the structure when the supporting plate 31 is in a semi-flattened state. When the electronic device 100 is in a flattened state, the supporting plate 31 and the first display panel 322 are both in a flattened state. At this time, the supporting plate 31 is in a straight plate shape, the display portion 32 is attached to the supporting plate 31, and the first display panel 322 is unfolded to form a rectangular screen. The first shell 10 and the second shell 20 can be spaced apart and can be located in the same plane. The hinge 40 is located between the first shell 10 and the second shell 20. At this time, the surface of the first display panel 322 used to display the image can have a good flatness to provide a good display effect and visual experience.

[0109] Please refer to Figure 2When the electronic device 100 is in a folded state, the supporting plate 31 and the first display panel 322 are both in a folded state. The first fixing portion 311 and the second fixing portion 315 of the supporting plate can be in a state parallel to each other, so as to reduce the area occupied by the electronic device 100 as much as possible. The first fixing area 3221 and the second fixing area 3225 of the first display panel are stacked and can be in a state parallel to each other. The first fixing area 3221 and the second fixing area 3225 are located between the first fixing portion 311 and the second fixing portion 315. The bending of the first bending portion 312 of the supporting plate 31 drives the bending of the first bending area 3222 of the first display panel 322. The bending of the second bending portion 313 of the supporting plate 31 drives the bending of the second bending area 3223 of the first display panel 322. The bending of the third bending portion 314 of the supporting plate 31 drives the bending of the third bending area 3224 of the first display panel 322. At this time, the first display panel 322 is folded and invisible. The second bending area 3223 of the first display panel 322 is hidden between the first bending area 3222 and the third bending area 3224. The second display panel 321 is the main imaging screen of the electronic device 100. At this time, the electronic device 100 can be conveniently operated by the user with one hand.

[0110] In the embodiment of the present application, after the flexible screen 30 of the electronic device 100 is folded, the bending portion can be folded and bent, and the supporting plate 31 can control the folding form of the first display panel 322. When the flexible screen 30 is unfolded, the supporting plate 31 can improve the flatness of the first display panel 322 through its own rigidity, thereby effectively improving the display effect of the large screen of the electronic device 100.

[0111] For a second possible embodiment, see Figure 8 , Figure 8 yes Figure 1 The structural schematic diagram of the second embodiment of the supporting plate 31 shown in the figure, wherein the supporting plate 31 is in a folded state. Different from the second bending portion 313 of the first possible embodiment, the second bending portion 313 further includes a first connecting segment 3134 and a second connecting segment 3135, the first connecting segment 3134 is connected between the first bending segment 3131 and the second bending segment 3132, the second connecting segment 3135 is connected between the third bending segment 3133 and the second bending segment 3132, and the rigidity of the first connecting segment 3134 and the second connecting segment 3135 is greater than the rigidity of the first bending segment 3131, the second bending segment 3132 and the third bending segment 3133. When the supporting plate 31 is in a folded state, the first connecting segment 3134 and the second connecting segment 3135 can remain in a straight state, and the first connecting segment 3134, the second connecting segment 3135 and the second bending segment 3132 are bent into a teardrop shape together.

[0112] In the embodiment of the present application, the first connecting section 3134 and the second connecting section 3135 can increase the size of the second bending portion 313 in the Y direction, so that the second bending portion 313 can provide a larger support area for the first display panel 322. When the electronic device 100 is in a folded state, the main screen of the electronic device 100 is the second display panel 321. When the electronic device 100 is unfolded, the first shell 10 and the second shell 20 are unfolded. At this time, the first shell 10 and the second shell 20 can increase the size of the unfolded electronic device 100 in the Y direction. The size of the first display panel 322 carried by the first shell 10 and the second shell 20 in the Y direction can be twice that of the second display panel 321. When the first bending portion 312, the second bending portion 313 and the third bending portion 314 are flattened, the first bending portion 312, the second bending portion 313 and the third bending portion 314 carry a portion of the first display panel 322 that is pushed out and is flush with the first shell 10 and the second shell 20. At this time, the aspect ratio of the first display panel 322 is approximately 7 / 6, which meets the user's usage habits of large screens.

[0113] When the lengths (dimensions along the Y direction) of the first connecting section 3134 and the second connecting section 3135 are adaptively increased, the lengths (dimensions along the Y direction) of the first bending section 3131, the second bending section 3132 and the third bending section 3133 of the second bending portion 313 can be appropriately reduced to reduce the radius of curvature of the bent portion of the second bending portion 313. This minimizes the space enclosed by the bending of the second bending portion 313, thereby reducing the bending volume of the second bending portion 313, so that the appearance of the electronic device 100 is more concise when in the folded state. The reduction in the volume of the bending portion of the electronic device 100 can also reduce the probability of it being impacted by external forces, thereby improving the structural stability of the electronic device 100.

[0114] It should be explained that the length direction of the first display panel 322 and the width direction of the second display panel 321 are the Y direction in the figure. The width direction of the first display panel 322 and the length direction of the second display panel 321 are the X direction in the figure.

[0115] For a third possible embodiment, see Fig. 9 , Fig. 9 yes Figure 1 The structural schematic diagram of the third embodiment of the supporting plate 31 shown in the figure, wherein the supporting plate 31 is in a folded state. Different from the second bending portion 313 of the second possible embodiment, the number of the second bending portions 313 is two. One end of one second bending portion 313 is connected to the first bending portion 312, and the other end is connected to one end of another second bending portion 313. The other end of the other second bending portion 313 is connected to the third bending portion 314.

[0116] In the embodiment of the present application, when the electronic device 100 is in a folded state, the two second bending portions 313 are located between the first bending portion 312 and the third bending portion 314. In the Z direction, the first bending portion 312, one second bending portion 313, another second bending portion 313 and the third bending portion 314 are stacked in sequence. When the electronic device 100 is unfolded, the two second bending portions 313 are pushed out and flattened along with the unfolding action of the electronic device 100, thereby increasing the length dimension of the electronic device 100 after flattening, so that the aspect ratio of the first display panel 322 is more in line with the user's usage habits.

[0117] In some other embodiments, the number of the second bending portions 313 may be more than two, and the number of the second bending portions 313 may be adapted according to the size requirements of the first display panel 322 . The present application does not limit the number of the second bending portions 313 .

[0118] For a fourth possible embodiment, see Fig.10 , Fig.10 yes Figure 1 In the structural schematic diagram of the fourth embodiment of the support plate 31 shown in FIG. 1 , the support plate 31 is in a folded state. Different from the second bending portion 313 of the third possible embodiment, the second bending portion 313 connected to the first bending portion 312 is not provided with a second connecting section 3135. The second bending portion 313 connected to the third bending portion 314 is not provided with a first connecting section 3134.

[0119] Specifically, the first second bending portion 313 includes a first bending section 3131, a first connecting section 3134, a second bending section 3132 and a third bending section 3133 connected in sequence. The first bending section 3131 is connected to the first bending portion 312 on a side away from the first connecting section 3134. The third bending section 3133 is connected to the second second bending portion 313 on a side away from the second bending section 3132.

[0120] The second second bending portion 313 includes a first bending section 3131, a second bending section 3132, a second connecting section 3135, and a third bending section 3133, which are connected in sequence. The first bending section 3131 of the second second bending portion 313, which is on a side away from the second bending section 3132 of the second second bending portion 313, is connected to the third bending section 3133 of the first second bending portion 313. The third bending section 3133 of the second second bending portion 313, which is on a side away from the second bending section 3132 of the second second bending portion 313, is connected to the seventh bending section 3143 of the third bending portion 314. In the embodiments of the present application, the unfolded length of the support plate 31 of the fourth embodiment may be smaller than the unfolded length of the support plate 31 of the third embodiment. When the aspect ratio of the electronic device 100 using the support plate 31 of the third embodiment is too large, the support plate 31 of the fourth embodiment may be used to appropriately reduce the aspect ratio of the electronic device 100, thereby making the aspect ratio of the electronic device 100 more suitable for the desired usage scenario.

[0121] In some embodiments, different from the second bending portion 313 of the fourth possible embodiment, the second bending portion 313 connected to the first bending portion 312 may not be provided with the first connecting section 3134. A second bending portion 313 connected to the third bending portion 314 may not be provided with the second connecting section 3135. Specifically, the first second bending portion 313 includes a first bending section 3131, a second bending section 3132 and a third bending section 3133 connected in sequence. Among them, the side of the first bending section 3131 away from the second bending section 3132 is connected to the first bending portion 312. The side of the third bending section 3133 away from the second bending section 3132 is connected to the second second bending portion 313.

[0122] The second second bending portion 313 includes a first bending section 3131, a second bending section 3132, and a third bending section 3133 connected in sequence. The first bending section 3131 of the second second bending portion 313, which is on a side away from the second bending section 3132 of the second second bending portion 313, is connected to the third bending section 3133 of the first second bending portion 313. The third bending section 3133 of the second second bending portion 313, which is on a side away from the second bending section 3132 of the second second bending portion 313, is connected to the seventh bending section 3143 of the third bending portion 314.

[0123] For a fifth possible embodiment, please refer to Fig.11 , Fig.11 1 is a schematic diagram of the structure of another electronic device 100 provided in an embodiment of the present application. Different from the single-folding electronic device 100 of the first embodiment, the electronic device 100 of the fifth embodiment is a multi-folding electronic device.

[0124] Specifically, the electronic device 100 can complete at least two folding actions. The number of the second housing 20 of the electronic device 100 can be two. When the electronic device 100 is in the unfolded state, the two second housings 20 are respectively connected to the opposite sides of the first housing 10 along the Y direction. The first housing 10 and the two second housings 20 are respectively connected by two hinges 40. One second housing 20, one hinge 40, the first housing 10, another hinge 40 and another second housing 20 jointly support the first display panel 322.

[0125] The two second shells 20 can be folded relative to the first shell 10 through the hinge 40, thereby realizing the folding function of the electronic device 100. The two second shells 20 are connected to both ends of the length direction of the first display panel 322. The first shell 10 is connected to the middle area of ​​the first display panel 322. The areas of the first display panel 322 corresponding to the two hinges 40 can be bent and deformed.

[0126] Among them, the specific possible implementation methods of the hinge 40 can refer to the above description of the hinge 40, and the present application does not elaborate on the structure of the hinge 40 here.

[0127] Please refer to Fig.12 , Fig.12 yes Fig.11 A schematic diagram of the structure of the support plate 31 in the electronic device 100 shown. The support plate 31 includes two second fixing portions 315, a first fixing portion 311, two first bending portions 312, two second bending portions 313 and two third bending portions 314. The two second fixing portions 315 are respectively located on opposite sides of the first fixing portion 311 along the Y direction. One side of the first fixing portion 311 and one second fixing portion 315 are connected through a first bending portion 312, a second bending portion 313 and a third bending portion 314. The other side of the first fixing portion 311 and another second fixing portion 315 are connected through another first bending portion 312, another second bending portion 313 and another third bending portion 314.

[0128] In the length direction of the supporting plate 31, a second fixing portion 315, a third bending portion 314, a second bending portion 313, a first bending portion 312, a first fixing portion 311, another first bending portion 312, another second bending portion 313, another third bending portion 314, and another second fixing portion 315 are connected in sequence.

[0129] In the embodiment of the present application, the multi-fold design of the electronic device 100 can further increase its aspect ratio, so that the electronic device 100 has a larger screen size and display area, thereby further improving the user experience. The multi-fold design of the electronic device 100 brings a more personalized user experience to the user. The user can freely adjust the folding state of the electronic device 100 according to personal preferences and needs.

[0130] In some other possible embodiments, the electronic device 100 may also be an electronic device 100 that can be folded three times or more. The present application does not limit the number of foldable positions of the electronic device 100.

[0131] The above are exemplary embodiments of the present application. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made thereto without departing from the principles of the present application, and these improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A support plate, characterized in that: It includes a first fixing portion, a first bending portion, a second bending portion, a third bending portion and a second fixing portion connected in sequence; When the supporting plate is in an unfolded state, along the length direction of the supporting plate, the first fixing portion, the first bending portion, the second bending portion, the third bending portion and the second fixing portion are arranged in sequence; When the supporting plate is in a folded state, the first fixing portion and the second fixing portion are stacked, the first bending portion, the second bending portion and the third bending portion are stacked and located on the same side of the first fixing portion and the second fixing portion, the second bending portion includes a first bending section, a second bending section and a third bending section connected in sequence, the first bending section is connected to the first bending portion, the third bending section is connected to the third bending portion, the second bending section is located between the first bending portion and the third bending portion, and is spaced apart from the first bending portion and the third bending portion.

2. The support plate according to claim 1, characterized in that: When the supporting plate is in the unfolded state, the ratio of the length to the width of the supporting plate is greater than or equal to 7 / 6.

3. The support plate according to claim 1, characterized in that: When the supporting plate is in a folded state, the first bending section bends toward the first bending portion, and the third bending section bends toward the third bending portion.

4. The support plate according to claim 3, characterized in that: The second bending portion also includes a first connecting section and a second connecting section, the first connecting section is connected between the first bending section and the second bending section, the second connecting section is connected between the third bending section and the second bending section, the rigidity of the first connecting section and the second connecting section is greater than the rigidity of the first bending section, the second bending section and the third bending section, and when the support plate is in a folded state, the first connecting section, the second connecting section and the second bending section are bent into a water drop shape together.

5. The support plate according to claim 4, characterized in that: The first bending portion includes a fourth bending section, a third connecting section, and a fifth bending section connected in sequence, the third connecting section has a stiffness greater than that of the fourth bending section and the fifth bending section, a side of the fourth bending section facing away from the third connecting section is connected to the first fixing portion, the fourth bending section is bent away from the second bending section, a side of the fifth bending section facing away from the third connecting section is connected to the second bending section, and the fifth bending section is bent toward the second bending section; When the supporting plate is in a folded state, the third connecting section, the fifth bending section, the first bending section, and the first connecting section are bent together into a water drop shape.

6. The support plate according to claim 5, characterized in that: The third bending portion includes a sixth bending section, a fourth connecting section, and a seventh bending section connected in sequence, the fourth connecting section has a stiffness greater than that of the sixth bending section and the seventh bending section, the side of the sixth bending section facing away from the fourth connecting section is connected to the second fixing section, the sixth bending section is bent away from the second bending section, the side of the seventh bending section facing away from the fourth connecting section is connected to the second bending section, and the seventh bending section is bent toward the second bending section; When the supporting plate is in a folded state, the fourth connecting segment, the seventh bending segment, the third bending segment and the second connecting segment are bent together into a water drop shape, and the second bending segment is located between the third connecting segment and the fourth connecting segment, and is spaced apart from the third connecting segment and the fourth connecting segment.

7. The support plate according to claim 6, characterized in that: When the supporting plate is in a folded state, the distance between the third connecting section and the fourth connecting section gradually increases in a direction away from the first fixing portion and the second fixing portion.

8. A flexible screen, characterized in that: The device comprises a first display panel and a supporting plate as claimed in any one of claims 1 to 7, wherein the first display panel comprises a first fixing area, a second fixing area, a first bending area, a second bending area and a third bending area, and along the length direction of the first display panel, the first fixing area, the first bending area, the second bending area, the third bending area and the second fixing area are arranged in sequence; The first fixing area is connected to the first fixing portion, the first bending area is connected to the first bending portion, the second bending area is connected to the second bending portion, the third bending area is connected to the third bending portion, and the second fixing area is connected to the second fixing portion; When the flexible screen is in a folded state, the first fixed area and the second fixed area are located between the first fixed part and the second fixed part and are arranged relative to each other, the first bending area is located on the inner surface of the first bending part, the second bending area is located on the inner surface of the second bending part, and the third bending area is located on the inner surface of the third bending area.

9. The flexible screen according to claim 8, characterized in that: The flexible screen also includes a second display panel, which is connected to a side of the first fixing portion facing away from the first display panel. When the flexible screen is in a folded state, the second display panel is located on an outer surface of the first fixing portion.

10. The flexible screen according to claim 9, characterized in that: The aspect ratio of the first display panel is greater than or equal to 7 / 6.

11. An electronic device, characterized in that: It includes a first shell, a second shell, a hinge and a flexible screen as described in any one of claims 8 to 10, wherein the first shell and the second shell are connected by the hinge, the first shell is connected to the first fixing part, and the second shell is connected to the second fixing part.

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