Electronic equipment and electronic equipment assembling method

Abstract

The invention discloses electronic equipment and an electronic equipment assembling method. The electronic equipment comprises a frame body assembly which comprises a first frame body, a second frame body and a hinge mechanism, and the first frame body and the second frame body are oppositely arranged in the first direction and rotationally connected through the hinge mechanism so that the electronic equipment can be switched between an unfolded state and a folded state; and the screen body is connected with the first frame body and the second frame body, and the frame body assembly applies a pulling force deviating from the hinge mechanism in the first direction to the screen body.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to an electronic equipment and an electronic equipment assembly method. Background Art

[0002] With the development of science and technology, various electronic devices have become indispensable products in daily life and production. Among them, foldable electronic devices have gradually become a development trend due to their advantages of large display area and easy portability.

[0003] In the related art, foldable electronic devices are usually provided with a flexible screen. During the use of the foldable electronic device, the flexible screen is prone to deformation after repeated bending, resulting in reduced display effect of the device and affecting the user experience, which is in urgent need of improvement. Summary of the invention

[0004] The embodiments of the present application provide an electronic device and an electronic device assembly method, which can improve the problem in the prior art that the screen body is easily deformed after repeated bending, resulting in reduced display effect of the device and affecting user experience.

[0005] In a first aspect, an embodiment of the present application provides an electronic device, comprising: a frame assembly, comprising a first frame, a second frame and a hinge mechanism, the first frame and the second frame are arranged relative to each other along a first direction and are rotatably connected by the hinge mechanism to enable the electronic device to switch between an unfolded state and a folded state; a screen body, the screen body is connected to the first frame and the second frame, and the frame assembly applies a pulling force to the screen body in a first direction away from the hinge mechanism.

[0006] In a second aspect, an embodiment of the present application provides an electronic device assembly method for assembling the electronic device of the embodiment of the first aspect above, the assembly method comprising:

[0007] Flattening the first frame and the second frame;

[0008] The screen is arranged in the first frame and the second frame;

[0009] The first frame and the second frame stretch the screen body in a first direction away from the hinge mechanism.

[0010] Thus, in the electronic device provided in the embodiment of the present application, the electronic device includes a frame assembly and a screen body, the frame assembly includes a first frame body, a second frame body and a hinge mechanism, the first frame body and the second frame body are arranged relatively to each other along a first direction, and are rotatably connected by the hinge mechanism so that the electronic device can switch between an unfolded state and a folded state, the screen body is connected to the first frame body and the second frame body for displaying images, and a pulling force away from the hinge mechanism in a first direction is applied to the screen body through the frame assembly to stretch the screen body to resist deformation of the screen body, thereby improving the problem of wrinkles on the screen body after repeated bending, which helps to improve the display effect of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0012] Figure 1 An exploded view of an electronic device according to some embodiments of the present application;

[0013] Figure 2 A schematic diagram of a structure in which a pulling mechanism in an electronic device in some embodiments of the present application is in a pulling state;

[0014] Figure 3 This is a schematic diagram of the structure of a pulling mechanism in an electronic device in some embodiments of the present application in a stress-relieving state;

[0015] Figure 4 Exploded diagrams of electronic devices according to other embodiments of the present application;

[0016] Figure 5 It is a schematic diagram of the structure of the pulling mechanism of the electronic device of some other embodiments of the present application;

[0017] Figure 6 An exploded view of an electronic device according to some other embodiments of the present application;

[0018] Figure 7 A schematic diagram of the structure of a pulling mechanism of an electronic device in some other embodiments of the present application;

[0019] Figure 8 A schematic diagram of the structure of an electronic device according to some other embodiments of the present application;

[0020] Figure 9 It is a structural schematic diagram of the folded state of the electronic device in some other embodiments of the present application;

[0021] Figure 10 for Figure 9 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 11 An exploded view of an electronic device according to some other embodiments of the present application;

[0023] Figure 12 A schematic diagram of the structure of an electronic device according to some other embodiments of the present application;

[0024] Figure 13 A flow chart of an electronic device assembly method according to some embodiments of the present application;

[0025] Figure 14 A schematic diagram of an electronic device assembly method according to some embodiments of the present application;

[0026] Figure 15 This is a schematic diagram of an electronic device assembly method according to some embodiments of the present application.

[0027] 100. Electronic equipment;

[0028] 110, frame assembly; 111, first frame; 112, second frame; 113, hinge mechanism;

[0029] 120, screen body;

[0030] 130, pulling mechanism; 131, stretching portion; 132, connecting portion; 1321, first substrate; 1322, first adhesive layer; 1323, second substrate; 1324, second adhesive layer; 1325, limiting protrusion; 1326, limiting depression;

[0031] 140, first adhesive layer;

[0032] 150, second adhesive layer;

[0033] X, first direction. DETAILED DESCRIPTION

[0034] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0035] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0036] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "middle", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 or an electrical 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.

[0038] See also Figure 1 , Figure 1 An exploded diagram of an electronic device according to some embodiments of the present application.

[0039] First, as Figure 1 As shown, an embodiment of the present application provides an electronic device 100, which includes a frame assembly 110 and a screen 120. The frame assembly 110 includes a first frame 111, a second frame 112 and a hinge mechanism 113. The first frame 111 and the second frame 112 are relatively arranged along a first direction X, and are rotatably connected by the hinge mechanism 113, so that the electronic device 100 can be switched between an unfolded state and a folded state; the screen 120 is connected to the first frame 111 and the second frame 112, and the frame assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the screen 120.

[0040] In the electronic device 100 provided by the embodiment of the present application, the electronic device 100 includes a frame assembly 110 and a screen body 120. The frame assembly 110 includes a first frame 111, a second frame 112, and a hinge mechanism 113. The first frame 111 and the second frame 112 are oppositely arranged along the first direction X and are rotatably connected through the hinge mechanism 113, so that the electronic device 100 can be switched between an unfolded state and a folded state. The screen body 120 is connected to the first frame 111 and the second frame 112 for displaying a picture. A pulling force away from the hinge mechanism 113 in the first direction X is applied to the screen body 120 through the frame assembly 110 to stretch the screen body 120 to resist the deformation of the screen body 120, and the problem of wrinkles generated after the screen body 120 is repeatedly bent is improved, which helps to improve the display effect of the electronic device 100.

[0041] The embodiment of the present application discloses an electronic device 100, and the electronic device 100 is a foldable electronic device. The electronic device 100 in the embodiment of the present application includes, but is not limited to, foldable electronic devices such as mobile phones, personal digital assistants (PDAs), tablet computers, laptop computers, and e-books.

[0042] The screen body 120 in the embodiment of the present application is a flexible screen body 120, and the flexible screen body 120 covers the first frame 111 and the second frame 112. The first frame 111, the second frame 112, and the hinge mechanism 113 are rotatably connected, so that the first frame 111 and the second frame 112 can drive the flexible screen body 120 to fold or unfold.

[0043] In the related art, during the assembly process of the electronic device 100, the dimensions of the flexible screen body 120 and the frame assembly 110 in the first direction X are the same. After the flexible screen body 120 is repeatedly bent, problems such as dents or reverse arches are likely to occur on the screen body 120. In the embodiment of the present application, a pulling force away from the hinge mechanism 113 in the first direction X is applied to the screen body 120 by the frame assembly 110, and this pulling force can be used to continuously stretch the flexible screen body 120 in the first direction X to flatten it, improving the deformation problem of the screen body 120.

[0044] Optionally, the screen body 120 and the frame assembly 110 are connected together by bonding or clamping.

[0045] Optionally, during the assembly process of the electronic device 100, the initial length of the screen body 120 in the first direction X is less than the length of the frame assembly 110 in the first direction X. After the screen body 120 is arranged on the frame assembly 110, the length of the screen body 120 is stretched to be the same as the length of the frame assembly 110. At this time, a pulling force away from the hinge mechanism 113 in the first direction X is applied to the screen body 120 by the frame assembly 110, and this pulling force can be used to flatten the screen body 120 to improve the deformation problem of the screen body 120. Exemplarily, this pulling force can be provided by the hinge mechanism 113.

[0046] Please refer to Figure 2 and Figure 3 , Figure 2 which is a schematic structural view of the pulling mechanism in a pulled state in the electronic device according to some embodiments of the present application; Figure 3 which is a schematic structural view of the pulling mechanism in a force-relieving state in the electronic device according to some embodiments of the present application.

[0047] In some embodiments, as Figures 1 to 3 shown, the electronic device 100 further includes a pulling mechanism 130. The pulling mechanism 130 includes a pulled state and a force-relieving state. The pulling mechanism 130 is connected to the first housing 111 and the second housing 112. The screen body 120 is disposed on a side of the pulling mechanism 130 away from the housing assembly 110. Among them, during the assembly process of the electronic device 100, before the screen body 120 is disposed on the pulling mechanism 130, the pulling mechanism 130 is in the pulled state, and the pulling mechanism 130 applies a pulling force in the first direction X towards the hinge mechanism 113 to the housing assembly 110. The initial length of the screen body 120 in the first direction X is less than the length of the housing assembly 110 in the first direction X. After the screen body 120 is disposed on the pulling mechanism 130 and the pulling mechanism 130 is in the force-relieving state, the housing assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the screen body 120.

[0048] In these embodiments, the screen body 120 is indirectly connected through the pulling mechanism 130 and the housing assembly 110. By switching the state of the pulling mechanism 130, the housing assembly 110 can apply a pulling force to the screen body 120 through the pulling mechanism 130, which helps to reduce the assembly difficulty of the screen body 120 and the housing assembly 110 and improve the assembly yield of the electronic device 100.

[0049] Specifically, the pulling mechanism 130 is fixedly connected to the first housing 111 and the second housing 112, and the screen body 120 is fixedly connected to the pulling mechanism 130 to improve the structural strength of the electronic device 100; the pulling mechanism 130 is not connected to the hinge mechanism 113 to avoid the pulling mechanism 130 from hindering the movement of the hinge mechanism 113. Exemplarily, the pulling mechanism 130 is adhesively connected to the housing assembly 110 and the screen body 120.

[0050] Specifically, before assembling the screen body 120, the initial length of the pulling mechanism 130 in the first direction X is less than the length L of the frame assembly 110 in the first direction X. The pulling mechanism 130 is stretched in the first direction X. At this time, the pulling mechanism 130 is in a pulling state. The pulling mechanism 130 in the pulling state is disposed on the first frame 111 and the second frame 112. The frame assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the pulling mechanism 130 in the pulling state. After the frame assembly 110 and the pulling mechanism 130 are in force balance, the screen body 120 with the initial length is disposed on the side of the pulling mechanism 130 away from the frame assembly 110. At this time, the screen body 120 will not be subjected to the pulling force of the frame assembly 110, as Figure 2 shown;

[0051] After that, the pulling mechanism 130 is switched from the pulling state to the force-relieving state. The ability of the pulling mechanism 130 in the force-relieving state to resist the pulling force of the frame assembly 110 is reduced. The frame assembly 110 stretches the pulling mechanism 130 in the force-relieving state in the first direction X away from the hinge mechanism 113. Since the screen body 120 and the pulling mechanism 130 are fixedly connected, the frame assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the screen body 120 through the pulling mechanism 130, as Figure 3 shown.

[0052] Exemplarily, the pulling mechanism 130 is stretched until its length in the first direction X is the same as the length of the frame assembly 110 in the first direction X. The stretched pulling mechanism 130 is disposed on the first frame 111 and the second frame 112.

[0053] It should be clear that the pulling force applied to the screen body 120 at this time is provided by at least one of the hinge mechanism 113, the first frame 111, and the second frame 112. It's just that since the screen body 120 needs to be connected to the frame assembly 110 through the pulling mechanism 130, the frame assembly 110 needs to apply a pulling force to the screen body 120 through the pulling mechanism 130 here.

[0054] It should be clear that the length L of the frame assembly 110 in the first direction X refers to the length of the frame assembly 110 in the first direction X when the electronic device 100 is in the unfolded state; the initial length of the screen body 120 in the first direction X refers to the initial length of the screen body 120 when it is not bent.

[0055] Optionally, the screen body 120 is stretched to be the same size as the frame assembly 110 in the first direction X to enhance the display effect of the screen body 120.

[0056] Optionally, the initial lengths of the pulling mechanism 130 and the screen 120 can be designed according to actual conditions. For example, the length of the frame assembly 110 in the first direction X is L, the initial length of the pulling mechanism 130 in the pulling state in the first direction X is 0.9L, and the initial length of the screen 120 is 0.98L.

[0057] Optionally, compared to directly stretching the screen body 120 by means of a supporting tool, in the embodiment of the present application, the screen body 120 is stretched by means of a stretching mechanism of the electronic device 100 itself, which helps to reduce the risk of damage to the screen body 120 and reduce the difficulty of assembling the screen body 120 and the frame assembly 110 .

[0058] In some embodiments, Figures 1 to 3 As shown, the pulling mechanism 130 is a sheet structure, and the pulling mechanism 130 covers the first frame 111, the second frame 112 and the hinge mechanism 113, and one end of the pulling mechanism 130 is connected to the side of the first frame 111 away from the hinge mechanism 113, and the other end of the pulling mechanism 130 is connected to the side of the second frame 112 away from the hinge mechanism 113. After the screen body 120 is set on the pulling mechanism 130, the pulling mechanism 130 is heated. When the temperature exceeds the first preset temperature, the pulling mechanism 130 switches from the pulling state to the pressure-releasing state, and the frame assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the screen body 120.

[0059] In these embodiments, the pulling mechanism 130 is a sheet structure to increase the contact area between the pulling mechanism 130 and the screen body 120 and the frame assembly 110, thereby improving the connection strength between the pulling mechanism 130 and the screen body 120 and the frame assembly 110. The pulling state and the stress release state are switched by changing the temperature of the pulling mechanism 130 by heating, thereby reducing the difficulty of assembling the electronic device 100.

[0060] Exemplarily, the sheet-like pulling mechanism 130 may be rectangular, which increases the contact area between the pulling mechanism 130 and the screen body 120 and helps the pulling mechanism 130 to apply a uniform pulling force to the screen body 120 .

[0061] Optionally, the pulling mechanism 130 can be a thermoplastic film, which includes a hot-melt thermoplastic polymer material. When heated to a first preset temperature, the thermoplastic film changes from a pulling state to a stress-relieving state, the thermoplastic film softens, and the elastic modulus decreases. After being converted to the stress-relieving state, the thermoplastic film will permanently remain in the stress-relieving state.

[0062] Exemplarily, the pulling mechanism 130 can be a PMMA (Poly methyl methacrylate) thermoplastic polymer, which is a transparent optical film material. When the PMMA thermoplastic polymer is heated to 65°C to 95°C, the PMMA thermoplastic polymer converts to a pulling state; or the pulling mechanism 130 can be a polyethylene (PE) polymer. When the polyethylene polymer is heated to 100°C to 130°C, the polyethylene polymer converts to a pulling state.

[0063] It should be clear that the first preset temperature is the specific conversion temperature of the pulling mechanism 130. The specific value of the first preset temperature should be designed according to the actual processing conditions and the material of the actual pulling mechanism 130, and no specific limitation is made here.

[0064] The elastic modulus of the pulling mechanism 130 in the pulling state is greater than that in the stress-relieving state. That is, after the temperature is raised to the first actual temperature, the ability of the pulling mechanism 130 to resist deformation decreases, and the pulling mechanism 130 itself can no longer balance the pulling force of the frame assembly 110 in the first direction X away from the hinge mechanism 113, and the frame assembly 110 starts to stretch the screen body 120.

[0065] Optionally, the elastic modulus of the pulling mechanism 130 in the stress-relieving state is less than the elastic modulus of the screen body 120 to reduce the loss of the pulling force of the pulling mechanism 130 in the stress-relieving state on the frame assembly 110.

[0066] Exemplarily, the pulling mechanism 130 is in the shape of a rectangular sheet.

[0067] Please refer to Figure 4 , Figure 4 which is an exploded view of an electronic device according to other embodiments of the present application.

[0068] In some embodiments, as Figure 4 shown, the pulling mechanism 130 includes two stretching portions 131 spaced along the first direction X. The two stretching portions 131 respectively cover the first frame 111 and the second frame 112. Among them, during the assembly process of the electronic device 100, the pulling mechanism 130 further includes a connecting portion 132. The connecting portion 132 is opposite to the hinge mechanism 113, and the connecting portion 132 connects the two stretching portions 131. After the screen body 120 is disposed on the pulling mechanism 130, the connecting portion 132 is removed, and the pulling mechanism 130 switches from the pulling state to the stress-relieving state, and the frame assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the screen body 120.

[0069] In these embodiments, the two stretching parts 131 arranged at intervals are respectively connected to the first frame body 111 and the screen body 120, and the second frame body 112 and the screen body 120. The connecting part 132 is detachably connected between the two stretching parts 131. By removing the connecting part 132, the pulling mechanism 130 is switched to the force-relieving state, which helps to reduce the loss of the pulling force of the pulling mechanism 130 on the frame assembly 110 in the force-relieving state, and the frame assembly 110 can fully stretch the screen body 120.

[0070] Specifically, when the pulling mechanism 130 is in the pulling state, the screen body 120 is fixedly connected to the two stretching parts 131, and the screen body 120 and the connecting part 132 are arranged at intervals to facilitate the removal of the connecting part 132.

[0071] Optionally, the two stretching parts 131 are symmetrically arranged along the midline of the hinge mechanism 113 in the first direction X to balance the pulling force of the frame assembly 110 acting on the screen body 120.

[0072] Optionally, the material, size and shape of the stretching part 131 can be designed by itself. Exemplarily, the stretching part 131 is rectangular.

[0073] Optionally, the stretching part 131 and the connecting part 132 are detachably connected, and the connection method between the stretching part 131 and the connecting part 132 can be bonding or clamping, etc.

[0074] Optionally, the connecting part 132 and the hinge mechanism 113 are correspondingly arranged, that is, the connecting part 132 is centered on the frame assembly 110 along the first direction X. This not only facilitates the removal of the connecting part 132, but also helps to balance the pulling forces of the two stretching parts 131 and the connecting part 132.

[0075] Specifically, when the pulling mechanism 130 is in the pulling state, the connecting part 132 is connected between the two stretching parts 131, and the connecting part 132 can apply a pulling force towards the hinge mechanism 113 in the first direction X to the two stretching parts 131; when the connecting part 132 is removed and the pulling mechanism 130 is switched to the force-relieving state, the two stretching parts 131 are no longer connected, and the frame assembly 110 can stretch the screen body 120 in the first direction X through the stretching parts 131.

[0076] Please refer to Figure 5 , Figure 5 which is a schematic structural diagram of the pulling mechanism of the electronic device according to other embodiments of the present application.

[0077] In some embodiments, such as Figure 4 and Figure 5As shown, the connecting portion 132 includes a first adhesive layer 1322 and a first substrate 1321 arranged in layers. The two stretching portions 131 are respectively bonded to one side of the first adhesive layer 1322 facing away from the frame assembly 110, and the first substrate 1321 is arranged on the side of the first adhesive layer 1322 facing the frame assembly 110. After the screen body 120 is arranged on the pulling mechanism 130, the pulling mechanism 130 is heated. When the temperature exceeds the second preset temperature, the viscosity between the first adhesive layer 1322 and the two stretching portions 131 is less than the viscosity between the first adhesive layer 1322 and the first substrate 1321. The connecting portion 132 is removed, and the frame assembly 110 applies a pulling force in the first direction X away from the hinge mechanism 113 to the screen body 120.

[0078] In these embodiments, the first substrate 1321 is bonded to the stretching portion 131 through the first adhesive layer 1322, which helps to simplify the pulling structure and reduce the manufacturing difficulty of the pulling mechanism 130; the viscosity between the first adhesive layer 1322 and the two stretching portions 131 decreases when the temperature exceeds the second preset temperature, so as to facilitate the removal of the connecting portion 132.

[0079] Optionally, the first adhesive layer 1322 is arranged between the first substrate 1321 and the stretching portion 131 along its own thickness direction, so as to increase the connection area between the first adhesive layer 1322 and the stretching portion 131 and improve the connection strength between the connecting portion 132 and the stretching portion 131 in the pulling state.

[0080] Specifically, the pulling mechanism 130 is heated to the second preset temperature, and the viscosity between the first adhesive layer 1322 and the two stretching portions 131 decreases, so as to facilitate the removal of the connecting portion 132, and the pulling mechanism 130 is switched to the force-relieving state.

[0081] The pulling mechanism 130 is heated to the second preset temperature, and the viscosity between the first adhesive layer 1322 and the two stretching portions 131 decreases. The viscosity between the first adhesive layer 1322 and the two stretching portions 131 is less than the viscosity between the first adhesive layer 1322 and the first substrate 1321, so that during the removal of the connecting portion 132, the first adhesive layer 1322 is easily separated from the stretching portion 131, while the first substrate 1321 and the first adhesive layer 1322 remain adhesively connected, avoiding the first adhesive layer 1322 being left in the frame assembly 110 and affecting the movement of the hinge mechanism 113.

[0082] Exemplarily, the first adhesive layer 1322 can be a single-sided heat-sensitive double-sided adhesive. When the single-sided heat-sensitive double-sided adhesive is heated to the second preset temperature, the viscosity between the first adhesive layer 1322 and the stretching portion 131 disappears, and the viscosity between the first adhesive layer 1322 and the first substrate 1321 remains, facilitating the separation of the first substrate 1321 and the first adhesive layer 1322 from the frame assembly 110.

[0083] Optionally, when heated to the second preset temperature, the pulling mechanism 130 is in a force-relieving state, and the two stretching portions 131 and the first adhesive layer 1322 are spaced apart in the first direction X, so that the connecting portion 132 and the stretching portion 131 are fully separated.

[0084] Please refer to Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , Figure 6 which is an exploded view of an electronic device according to some other embodiments of the present application; Figure 7 which is a schematic structural view of a pulling mechanism of an electronic device according to some other embodiments of the present application; Figure 8 which is a schematic structural view of an electronic device according to some other embodiments of the present application; Figure 9 which is a schematic structural view of a folded state of an electronic device according to some other embodiments of the present application; Figure 10 is Figure 9 an enlarged structural view of part A in

[0085] In some embodiments, as Figures 6 to 10 shown, the connecting portion 132 includes a second substrate 1323 and a second adhesive layer 1324 arranged in layers. The second substrate 1323 is provided with limiting protrusions 1325 on both sides facing the two stretching portions 131. The two stretching portions 131 are respectively provided with limiting depressions 1326 on one side facing the second substrate 1323. The two stretching portions 131 and the second substrate 1323 are in limiting cooperation through the limiting protrusions 1325 and the limiting depressions 1326. The second adhesive layer 1324 is arranged on the side of the second substrate 1323 facing the frame assembly 110. After the screen body 120 is arranged on the pulling mechanism 130, the first frame 111 is folded relative to the second frame 112, the limiting protrusions 1325 are separated from the limiting depressions 1326, the connecting portion 132 is removed, and the frame assembly 110 applies a pulling force to the screen body 120 in the first direction X away from the hinge mechanism 113.

[0086] In these embodiments, the second substrate 1323 and the stretching portion 131 are respectively provided with the limiting protrusions 1325 and the limiting depressions 1326. The cooperation of the limiting protrusions 1325 and the limiting depressions 1326 helps to improve the connection reliability between the second substrate 1323 and the stretching portion 131. The second adhesive layer 1324 is arranged on the side of the second substrate 1323 facing the frame assembly 110. The second adhesive layer 1324 is used to assist the separation of the second substrate 1323 and the stretching portion 131 to facilitate the removal of the connecting portion 132.

[0087] Specifically, the limiting protrusion 1325 of the second substrate 1323 is received in the limiting recess 1326 of the stretching part 131, the second substrate 1323 is connected to the stretching part 131, and the pulling mechanism 130 is in a pulling state; after the screen body 120 is arranged on the pulling mechanism 130, the first frame 111 and the second frame 112 are folded, the stretching part 131 bends along with the first frame 111 and the second frame 112. Since the second substrate 1323 is fixed to the hinge mechanism 113 by the second adhesive layer 1324, the bending degree of the second substrate 1323 is less than that of the stretching part 131, the limiting protrusion 1325 disengages from the limiting recess 1326, the second substrate 1323 is separated from the stretching part 131, and the pulling mechanism 130 switches to a force-relieving state.

[0088] Optionally, the limiting protrusion 1325 is arranged on the side of the second substrate 1323 facing the screen body 120, so as to facilitate pulling out the frame assembly 110 after the second substrate 1323 is separated from the stretching part 131.

[0089] Optionally, a plurality of limiting protrusions 1325 and a plurality of limiting recesses 1326 are arranged at intervals along the second direction, and the limiting protrusions 1325 and the limiting recesses 1326 are arranged in one-to-one correspondence, so as to balance the pulling forces of the stretching part 131 and the second substrate 1323.

[0090] Optionally, the limiting recess 1326 is a through hole arranged in the stretching part 131 to increase the connection reliability between the stretching part 131 and the connecting part 132; or the limiting recess 1326 is a blind hole arranged in the stretching part 131, which helps to reduce the damage to the structural strength of the stretching part 131 caused by arranging the limiting recess 1326.

[0091] Optionally, the shapes of the limiting protrusion 1325 and the limiting recess 1326 match each other. Exemplarily, the limiting protrusion 1325 is in the shape of a cubic block, and the limiting recess 1326 is in the shape of a rectangular hole.

[0092] Optionally, the second adhesive layer 1324 is an easy-to-pull adhesive. When the second adhesive layer 1324 reliably connects the second substrate 1323 to the hinge mechanism 113, it is convenient to pull the connecting part 132 out of the frame assembly 110 and reduce the influence of the colloid residue on the hinge mechanism 113.

[0093] Optionally, the second adhesive layer 1324 covers the surface of the second substrate 1323 facing the hinge mechanism 113 to improve the connection reliability between the second substrate 1323 and the hinge mechanism 113.

[0094] Please refer to Figure 11 and Figure 12 , Figure 11 which is an exploded view of an electronic device according to some other embodiments of the present application; Figure 12 which is a schematic structural diagram of an electronic device according to some other embodiments of the present application.

[0095] In some embodiments, as Figure 11 and Figure 12 shown, a part of the connecting portion 132 extends out of the housing assembly 110.

[0096] In these embodiments, a part of the connecting portion 132 extends out of the housing assembly 110 to facilitate the detachment of the connecting portion 132 from the housing assembly 110.

[0097] Optionally, when the pulling mechanism 130 is in the pulling state, a part of the connecting portion 132 can extend out of the housing assembly 110.

[0098] Exemplarily, when the limiting protrusion 1325 and the limiting recess 1326 are separated, the pulling mechanism 130 switches to the force-relieving state, and the connecting portion 132 detaches from the housing assembly 110; or when the pulling mechanism 130 is heated to the first preset temperature, the viscosity of the first adhesive layer 1322 decreases, the pulling mechanism 130 switches to the force-relieving state, and the connecting portion 132 detaches from the housing assembly 110.

[0099] Exemplarily, the connecting portion 132 includes a first end and a second end that are oppositely arranged. When the pulling mechanism 130 is in the pulling state, the first end of the connecting portion 132 is connected to the stretching portion 131, and the second end of the connecting portion 132 extends out of the housing assembly 110; when the pulling mechanism 130 is in the force-relieving state, an external force acts on the second end to detach the connecting portion 132 from the housing assembly 110.

[0100] Optionally, the second end is provided with friction lines to facilitate dragging and pulling the connecting portion 132.

[0101] Optionally, as Figure 12 shown, in the pulling state, a part of the connecting portion 132 extends out of the housing assembly 110 through the gap between the housing assembly 110 and the screen body 120, and there is no need to separately provide an opening for the connecting portion 132 in the housing assembly 110.

[0102] In some embodiments, as Figure 1 shown, the electronic device 100 further includes a first glue layer 140, and the first glue layer 140 is bonded between the pulling mechanism 130 and the screen body 120. The orthographic projection of the first glue layer 140 on the housing assembly 110 is located on both sides of the hinge mechanism 113 in its first direction X.

[0103] In these embodiments, the screen body 120 is bonded to the pulling mechanism 130 through the first glue layer 140 to enhance the connection strength between the screen body 120 and the pulling mechanism 130.

[0104] Exemplarily, the first adhesive layer 140 can be an OCA (Optically Clear Adhesive) adhesive or a PSA (Pressure Sensitive Adhesive) adhesive, etc.

[0105] Optionally, the first adhesive layers 140 are disposed on both sides of the hinge mechanism 113, and the gaps between the two first adhesive layers 140 in the first direction X are arranged opposite to the hinge mechanism 113, so as to improve the problem that the first adhesive layer 140 affects the deformation of the screen body 120 and hinders the flipping of the device.

[0106] Optionally, the orthographic projections of the two first adhesive layers 140 in their thickness directions respectively cover the first frame body 111 and the second frame body 112, so as to increase the contact area between the first adhesive layer 140 and the screen body 120, so that the frame assembly 110 applies a larger range of pulling force to the screen body 120 through the first adhesive layer 140, which helps to balance the force on the screen body 120 and reduce the risk of damage to the screen body 120.

[0107] In some embodiments, as Figure 1 shown, the electronic device 100 further includes a second adhesive layer 150, and the second adhesive layer 150 is bonded between the pulling mechanism 130 and the frame assembly 110. The orthographic projection of the second adhesive layer 150 on the frame assembly 110 is located on both sides of the hinge mechanism 113 in its first direction X.

[0108] In these embodiments, the pulling mechanism 130 is bonded to the frame assembly 110 through the second adhesive layer 150 to enhance the connection strength between the frame assembly 110 and the pulling mechanism 130.

[0109] Exemplarily, the second adhesive layer 150 can be an OCA (Optically Clear Adhesive) adhesive or a PSA (Pressure Sensitive Adhesive) adhesive, etc.

[0110] Optionally, the second adhesive layers 150 are disposed on both sides of the hinge mechanism 113 to prevent the second adhesive layer 150 from hindering the operation of the hinge mechanism 113.

[0111] Optionally, the orthographic projections of the two second adhesive layers 150 in their thickness directions respectively cover the first frame body 111 and the second frame body 112, so as to increase the contact area between the second adhesive layer 150 and the pulling mechanism 130 and improve the connection reliability therebetween.

[0112] Please refer to Figure 13 and Figure 14 , Figure 13 which is a flowchart of an electronic device assembly method according to some embodiments of the present application; Figure 14 which is a schematic diagram of an electronic device assembly method according to some embodiments of the present application.

[0113] In a second aspect, as Figure 13 and Figure 14 shown, an embodiment of the present application provides an assembly method for an electronic device 100, which is used to assemble the electronic device 100 in the embodiment of the first aspect. The assembly method includes:

[0114] S1: Flatten the first housing 111 and the second housing 112;

[0115] S2: Arrange the screen body 120 on the first housing 111 and the second housing 112;

[0116] Wherein, the first housing 111 and the second housing 112 stretch the screen body 120 in a direction away from the hinge mechanism 113 in the first direction X.

[0117] In these embodiments, after the screen body 120 is arranged on the first housing 111 and the second housing 112, the first housing 111 and the second housing 112 stretch the screen body 120 in a direction away from the hinge mechanism 113 in the first direction X, and apply a pulling force in the first direction X away from the hinge mechanism 113 to the screen body 120 through the housing assembly 110, so as to stretch the screen body 120 to resist the deformation of the screen body 120 and improve the problem of wrinkles generated after the screen body 120 is repeatedly bent, which helps to improve the display effect of the electronic device 100.

[0118] Exemplarily, in step S1, the housing assembly 110 is placed on a jig, and the first housing 111 and the second housing 112 are flattened.

[0119] Exemplarily, in step S2, the screen body 120 is bonded to the first housing 111 and the second housing 112.

[0120] Please refer to Figure 15 , Figure 15 which is a schematic diagram of the electronic device assembly method in some embodiments of the present application.

[0121] In some embodiments, as Figure 1 and Figure 15 shown, the initial length of the screen body 120 in the first direction X is less than the length of the housing assembly 110 in the first direction X. The electronic device 100 further includes a pulling mechanism 130, and the pulling mechanism 130 includes a pulling state and a force-relieving state.

[0122] Before step S2, the assembly method further includes:

[0123] Connect the pulling mechanism 130 to the first housing 111 and the second housing 112, and make the pulling mechanism 130 in the pulling state, and the pulling mechanism 130 applies a pulling force in the first direction X towards the hinge mechanism 113 to the housing assembly 110.

[0124] In these embodiments, the screen body 120 is indirectly connected to the frame assembly 110 through the pulling mechanism 130. By switching the state of the pulling mechanism 130, the frame assembly 110 can apply a pulling force to the screen body 120 through the pulling mechanism 130, which helps to reduce the assembly difficulty between the screen body 120 and the frame assembly 110 and improve the assembly yield of the electronic device 100.

[0125] Specifically, the pulling mechanism 130 applies a pulling force in the first direction X towards the hinge mechanism 113 to the frame assembly 110, and the frame assembly 110 applies a reaction force of this pulling force to the pulling mechanism 130. When the pulling mechanism 130 switches to the force-relieving state, at least part of the reaction force acts on the screen body 120 and stretches the screen body 120 in the first direction X away from the pulling mechanism 130.

[0126] Exemplarily, in step S2, it further includes that after the screen body 120 is set on the pulling mechanism 130 in the pulling state, the pulling mechanism 130 switches to the force-relieving state, and the frame assembly 110 stretches the screen body 120 away from the hinge mechanism 113 in the first direction X through the pulling mechanism 130.

[0127] In some embodiments, as Figures 1 to 3 shown, the pulling mechanism 130 is a sheet-like structure. The pulling mechanism 130 covers the first frame 111, the second frame 112 and the hinge mechanism 113, and one end of the pulling mechanism 130 is connected to the side of the first frame 111 away from the hinge mechanism 113, and the other end of the pulling mechanism 130 is connected to the side of the second frame 112 away from the hinge mechanism 113.

[0128] After step S2, the pulling mechanism 130 is heated.

[0129] When the temperature of the pulling mechanism 130 exceeds the first preset temperature, the pulling mechanism 130 switches from the pulling state to the force-relieving state, and the pulling force that the pulling mechanism 130 applies to the frame assembly 110 in the first direction X towards the hinge mechanism 113 switches to the pulling force that the frame assembly 110 applies to the screen body 120 in the first direction X away from the hinge mechanism 113.

[0130] In these embodiments, the pulling mechanism 130 is a sheet-like structure to increase the contact area between the pulling mechanism 130 and the screen body 120 and the frame assembly 110, improve the connection strength between the pulling mechanism 130 and the screen body 120 and the frame assembly 110, and switch the pulling state and the force-relieving state by changing the temperature of the pulling mechanism 130 through heating, thereby reducing the assembly difficulty of the electronic device 100.

[0131] Exemplarily, after step S2, the device is placed in the heating mechanism, and the pulling mechanism 130 is heated to the first preset temperature. The pulling mechanism 130 is switched from the pulling state to the stress-relieving state. After the device is naturally cooled, the subsequent assembly process is carried out.

[0132] In some embodiments, as Figure 4 shown, the pulling mechanism 130 includes two stretching parts 131 arranged at intervals along the first direction X. The two stretching parts 131 respectively cover the first housing 111 and the second housing 112, and the pulling mechanism 130 further includes a connecting part 132. The connecting part 132 faces the hinge mechanism 113, and the connecting part 132 connects the two stretching parts 131.

[0133] After step S2, the connecting part 132 is removed.

[0134] Wherein, the pulling mechanism 130 is switched from the pulling state to the stress-relieving state, and the pulling force exerted by the pulling mechanism 130 on the housing assembly 110 in the first direction X towards the hinge mechanism 113 is switched to the pulling force exerted by the housing assembly 110 on the screen body 120 in the first direction X away from the hinge mechanism 113.

[0135] In these embodiments, the two stretching parts 131 arranged at intervals are respectively connected to the first housing 111 and the screen body 120, and the second housing 112 and the screen body 120. The connecting part 132 is detachably connected between the two stretching parts 131. By removing the connecting part 132, the pulling mechanism 130 can be switched to the stress-relieving state, which helps to reduce the loss of the pulling force of the pulling mechanism 130 on the housing assembly 110 in the stress-relieving state.

[0136] It should be clear that removing the connecting part 132 means separating the connecting part 132 from the stretching part 131. At this time, the connecting part 132 can be inside the housing assembly 110, or the connecting part 132 can be outside the housing assembly 110.

[0137] Optionally, a part of the connecting part 132 extends out of the housing assembly 110. After step S2, the connecting part 132 is removed, and the connecting part 132 is detached or pulled out from the housing assembly 110.

[0138] In some embodiments, as Figure 4 and Figure 5 shown, the connecting part 132 includes a first adhesive layer 1322 and a first substrate 1321 arranged in layers. The two stretching parts 131 are respectively bonded to the side of the first adhesive layer 1322 away from the housing assembly 110, and the first substrate 1321 is arranged on the side of the first adhesive layer 1322 towards the housing assembly 110.

[0139] After step S2, the pulling mechanism 130 is heated.

[0140] When the temperature of the pulling mechanism 130 exceeds the second preset temperature, the viscosity between the first adhesive layer 1322 and the two stretching parts 131 is less than the viscosity between the first adhesive layer 1322 and the first substrate 1321, and the connecting part 132 is removed.

[0141] In these embodiments, the first substrate 1321 is adhered to the stretching part 131 through the first adhesive layer 1322, which helps to simplify the pulling structure and reduce the manufacturing difficulty of the pulling mechanism 130; by heating the pulling mechanism 130, the viscosity between the first adhesive layer 1322 and the two stretching parts 131 decreases when the temperature exceeds the second preset temperature, facilitating the removal of the connecting part 132.

[0142] Optionally, after step S2, the pulling mechanism 130 is heated to the second preset temperature to remove the connecting part 132, and the pulling mechanism 130 switches to the force-relieving state.

[0143] It should be clear that here the pulling mechanism 130 is heated to reach or exceed the second preset temperature, and the specific temperature value can be designed by oneself.

[0144] Optionally, the first adhesive layer 1322 can be a single-sided heat-sensitive double-sided adhesive. After the pulling mechanism 130 is heated to the second preset temperature, the connecting part 132 is removed, and the pulling mechanism 130 switches to the force-relieving state. Before the pulling mechanism 130 naturally cools, the connecting part 132 is separated from the frame assembly 110 to avoid the connecting part 132 with restored viscosity from sticking inside the frame assembly 110.

[0145] In some embodiments, as Figures 6 to 10 shown, the connecting part 132 includes a second substrate 1323 and a second adhesive layer 1324 arranged in layers. The second substrate 1323 is provided with limiting protrusions 1325 on both sides facing the two stretching parts 131, and the two stretching parts 131 are respectively provided with limiting depressions 1326 on one side facing the second substrate 1323. The two stretching parts 131 and the second substrate 1323 are in limiting cooperation through the limiting protrusions 1325 and the limiting depressions 1326. The second adhesive layer 1324 is arranged on the side of the second substrate 1323 facing the frame assembly 110.

[0146] After step S2, the first frame 111 is folded relative to the second frame 112, the limiting protrusions 1325 are separated from the limiting depressions 1326, and the connecting part 132 is removed.

[0147] In these embodiments, limiting protrusions 1325 and limiting recesses 1326 are respectively provided on the second substrate 1323 and the stretching portion 131. The cooperation of the limiting protrusions 1325 and the limiting recesses 1326 helps to improve the connection reliability between the second substrate 1323 and the stretching portion 131. By folding the first frame 111 and the second frame 112, the limiting protrusions 1325 and the limiting recesses 1326 can be separated to facilitate the removal of the connecting portion 132.

[0148] Exemplarily, after removing the connecting portion 132, the first frame 111 and the second frame 112 are flattened for subsequent processes.

[0149] Exemplarily, the first frame 111 is folded at a target angle relative to the second frame 112 to separate the limiting protrusions 1325 and the limiting recesses 1326, and the target angle value can be designed by oneself. Exemplarily, the target angles are 180°, 175°, 150°, 90°, 45°, etc.

[0150] The separation of the limiting protrusions 1325 from the limiting recesses 1326 means that the limiting protrusions 1325 are located outside the limiting recesses 1326.

[0151] As described above, only the specific embodiments of the present application are provided. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the above-described systems, modules, and units can refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here. It should be understood that the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or substitutions within the technical scope disclosed in the present application, and these modifications or substitutions should all be covered by the protection scope of the present application.

Claims

1. An electronic device, characterized in that, include: A frame assembly, comprising a first frame, a second frame and a hinge mechanism, wherein the first frame and the second frame are arranged opposite to each other along a first direction and are rotatably connected by the hinge mechanism, so that the electronic device can be switched between an unfolded state and a folded state; A screen body is connected to the first frame body and the second frame body, and the frame body assembly applies a pulling force to the screen body in the first direction away from the hinge mechanism.

2. The electronic device according to claim 1, characterized in that, The electronic device further comprises a pulling mechanism, the pulling mechanism comprises a pulling state and a releasing state, the pulling mechanism is connected to the first frame and the second frame, the screen is arranged on a side of the pulling mechanism away from the frame assembly, Wherein, during the assembly process of the electronic device, the screen body is arranged before the pulling mechanism, the pulling mechanism is in a pulling state, and the pulling mechanism applies a pulling force in a first direction toward the hinge mechanism to the frame assembly, and an initial length of the screen body in the first direction is smaller than a length of the frame assembly in the first direction, the screen body is arranged behind the pulling mechanism and the pulling mechanism is in a tension-releasing state, and the frame assembly applies a pulling force in the first direction away from the hinge mechanism to the screen body.

3. The electronic device according to claim 2, wherein The pulling mechanism is a sheet structure, and the pulling mechanism covers the first frame, the second frame and the hinge mechanism, and one end of the pulling mechanism is connected to a side of the first frame away from the hinge mechanism, and the other end of the pulling mechanism is connected to a side of the second frame away from the hinge mechanism. After the screen body is set on the pulling mechanism, the pulling mechanism is heated. When the temperature exceeds a first preset temperature, the pulling mechanism switches from the pulling state to the stress-relieving state, and the frame assembly applies a pulling force to the screen body in the first direction away from the hinge mechanism.

4. The electronic device according to claim 2, characterized in that, The pulling mechanism includes two stretching parts spaced apart along a first direction, and the two stretching parts cover the first frame and the second frame respectively. Wherein, during the assembly process of the electronic device, the pulling mechanism also includes a connecting portion, which is opposite to the hinge mechanism and connects the two stretching portions. After the screen body is set on the pulling mechanism, the connecting portion is removed, and the pulling mechanism switches from the pulling state to the stress-relieving state, and the frame assembly applies a pulling force to the screen body in the first direction away from the hinge mechanism.

5. The electronic device according to claim 4, wherein The connecting portion includes a first adhesive layer and a first substrate, the two stretching portions are respectively bonded to the side of the first adhesive layer facing away from the frame assembly, and the first substrate is arranged on the side of the first adhesive layer facing the frame assembly. After the screen body is arranged on the pulling mechanism, the pulling mechanism is heated. When the temperature exceeds a second preset temperature, the viscosity between the first adhesive layer and the two stretching portions is less than the viscosity between the first adhesive layer and the first substrate. The connecting portion is removed, and the frame assembly applies a pulling force to the screen body in the first direction away from the hinge mechanism.

6. The electronic device according to claim 4, characterized in that, The connecting portion includes a second substrate and a second adhesive layer disposed one above the other. The second substrate is provided with limiting protrusions on both sides facing the two stretching portions. The two stretching portions are respectively provided with limiting depressions on one side facing the second substrate. The two stretching portions and the second substrate are in limiting cooperation through the limiting protrusions and the limiting depressions. The second adhesive layer is disposed on the side of the second substrate facing the frame assembly. After the screen body is disposed on the pulling mechanism, the first frame is folded relative to the second frame, the limiting protrusions are separated from the limiting depressions, the connecting portion is removed, and the frame assembly applies a pulling force to the screen body in the first direction away from the hinge mechanism.

7. The electronic device according to claim 4, wherein Part of the connecting portion extends out of the frame assembly.

8. The electronic device according to claim 2, wherein The electronic device further includes a first adhesive layer, which is bonded between the pulling mechanism and the screen body. The orthographic projection of the first adhesive layer on the frame assembly is located on both sides of the hinge mechanism in the first direction thereof.

9. The electronic device according to claim 2, characterized in that, The electronic device further includes a second adhesive layer, which is bonded between the pulling mechanism and the frame assembly. The orthographic projection of the second adhesive layer on the frame assembly is located on both sides of the hinge mechanism in the first direction thereof.

10. An electronic device assembly method for assembling the electronic device according to any one of the above claims 1-9, characterized in that, The assembly method includes: Flatten the first frame and the second frame; Dispose the screen body on the first frame and the second frame; Wherein, the first frame and the second frame stretch the screen body in a direction away from the hinge mechanism in the first direction.

11. The assembly method according to claim 10, characterized in that, The initial length of the screen body in the first direction is less than the length of the frame assembly in the first direction. The electronic device further includes a pulling mechanism, and the pulling mechanism includes a pulling state and a force-relieving state. Before disposing the screen body on the first frame and the second frame, the method further includes: Connect the pulling mechanism to the first frame and the second frame, and make the pulling mechanism in the pulling state. The pulling mechanism applies a pulling force to the frame assembly in the first direction towards the hinge mechanism.

12. The assembly method according to claim 11, characterized in that, The pulling mechanism is a sheet-like structure. The pulling mechanism covers the first frame, the second frame and the hinge mechanism. One end of the pulling mechanism is connected to a side of the first frame away from the hinge mechanism, and the other end of the pulling mechanism is connected to a side of the second frame away from the hinge mechanism. After the screen body is disposed on the first frame and the second frame, heat the pulling mechanism; When the temperature of the pulling mechanism exceeds a first preset temperature, the pulling mechanism switches from the pulling state to the force-relieving state, and the pulling force applied by the pulling mechanism to the frame assembly in the first direction towards the hinge mechanism switches to the pulling force applied by the frame assembly to the screen body in the first direction away from the hinge mechanism.

13. The assembly method according to claim 11, characterized in that, The pulling mechanism includes two stretching parts arranged at intervals in the first direction. The two stretching parts respectively cover the first frame body and the second frame body. The pulling mechanism further includes a connecting part. The connecting part is opposite to the hinge mechanism and connects the two stretching parts. After the screen body is arranged on the first frame body and the second frame body, the connecting part is removed. Wherein, when the pulling mechanism switches from the pulling state to the force-relieving state, the pulling force applied by the pulling mechanism to the frame body assembly in the first direction towards the hinge mechanism is switched to the pulling force applied by the frame body assembly to the screen body in the first direction away from the hinge mechanism.

14. The assembly method according to claim 13, wherein, The connecting part includes a first adhesive layer and a first substrate arranged in layers. The two stretching parts are respectively bonded to the side of the first adhesive layer away from the frame body assembly, and the first substrate is arranged on the side of the first adhesive layer towards the frame body assembly. After the screen body is arranged on the first frame body and the second frame body, the pulling mechanism is heated. When the temperature of the pulling mechanism exceeds the second preset temperature, the viscosity between the first adhesive layer and the two stretching parts is less than the viscosity between the first adhesive layer and the first substrate, and the connecting part is removed.

15. The assembly method according to claim 13, characterized in that, The connecting part includes a second substrate and a second adhesive layer arranged in layers. Limiting protrusions are arranged on both sides of the second substrate facing the two stretching parts. Limiting depressions are arranged on one side of the two stretching parts facing the second substrate. The two stretching parts and the second substrate are in limiting cooperation through the limiting protrusions and the limiting depressions. The second adhesive layer is arranged on the side of the second substrate towards the frame body assembly. After the screen body is arranged on the first frame body and the second frame body, the first frame body is folded relative to the second frame body, the limiting protrusions and the limiting depressions are separated, and the connecting part is removed.

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