Terminal and terminal assembly method

Abstract

The present disclosure is about a terminal and a terminal assembly method, the terminal comprising: a flexible screen; a housing, mounted on the back of the flexible screen, comprising a first part and a second part arranged in parallel; a rotating shaft, located between the first part and the second part, the first part is rotationally connected to the rotating shaft, and / or the second part is rotationally connected to the rotating shaft; when the first part and the second part rotate relative to each other through the rotating shaft, the flexible screen is deformed; a first adhesive layer, bonding the housing and the back of the flexible screen; wherein the stress of the first adhesive layer in the first direction is less than the stress in the second direction, the first direction is a direction perpendicular to the axis of the rotating shaft; the second direction is a direction in a plane perpendicular to the first direction. The different stresses of the first adhesive layer in different directions can suppress the wrinkle problem during the deformation of the flexible screen.

Description

Technical Field

[0001] The present disclosure relates to the field of machinery, and in particular to a terminal and an assembly method of the terminal. Background Art

[0002] Taking mobile phones as an example, as mobile phones continue to develop, the latest form of foldable phones will have huge market potential. Generally speaking, foldable phones have high requirements for display screens. One of the key technologies is whether the switching between foldable and flat forms has high reliability and good experience.

[0003] When current foldable mobile phones are in a folded state, the outward-facing display screen undergoes significant deformation at the rotation axis. When the phone is restored to a flat state, the deformation of the bending zone of the display screen cannot be restored in time. This plastic deformation will cause wrinkles in the bending zone, affecting the user experience. Summary of the invention

[0004] The present disclosure provides a terminal and a terminal assembly method to solve the problems existing in the related art.

[0005] According to a first aspect of an embodiment of the present disclosure, a terminal is provided, including:

[0006] Flexible screen;

[0007] A housing, mounted on the back of the flexible screen, comprising a first part and a second part arranged in parallel;

[0008] A rotating shaft is located between the first part and the second part, the first part is rotatably connected to the rotating shaft, and / or the second part is rotatably connected to the rotating shaft; when the first part and the second part rotate relative to each other through the rotating shaft, the flexible screen is deformed;

[0009] A first adhesive layer is used to bond the shell and the back of the flexible screen; wherein, the stress of the first adhesive layer in a first direction is less than the stress in a second direction, the first direction is a direction perpendicular to the axis of the rotating shaft; the second direction is a direction within a plane perpendicular to the first direction.

[0010] In some embodiments, the stress of the first adhesive layer along the first direction is less than or equal to a predetermined ratio of the stress of the first adhesive layer along the second direction.

[0011] In some embodiments, the predetermined ratio ranges from 0.1 to 0.4.

[0012] In some embodiments, the area of ​​the first adhesive layer is greater than or equal to the area of ​​a region where the flexible screen bends and deforms as the shaft rotates.

[0013] In some embodiments, the terminal further includes:

[0014] A second adhesive layer, which is used to bond the housing and the back surface of the flexible screen and is located on both sides of the first adhesive layer along the first direction;

[0015] The stress of the second adhesive layer in the first direction is equal to the stress of the second adhesive layer in the second direction.

[0016] In some embodiments, the stress of the second adhesive layer is at least greater than the stress of the first adhesive layer in the second direction.

[0017] In some embodiments, the first adhesive layer comprises:

[0018] A first adhesive, wherein the first adhesive is distributed at intervals along the first direction on the back side of the housing and / or the flexible screen.

[0019] In some embodiments, the first adhesive layer comprises:

[0020] A second adhesive and a third adhesive, the adhesive force of the second adhesive is greater than the adhesive force of the third adhesive, and the second adhesive and the third adhesive are alternately distributed along the first direction on the back of the shell and / or the flexible screen.

[0021] According to a second aspect of an embodiment of the present disclosure, there is provided a terminal assembly method, which is applied to any of the above-mentioned terminals, comprising:

[0022] Mounting the first and second parts of the housing on the rotating shaft;

[0023] The shell and the back of the flexible screen are bonded by a first adhesive layer, wherein the stress of the first adhesive layer in a first direction is less than the stress in a second direction, the first direction is a direction perpendicular to the axis of the rotating shaft; the second direction is a direction within a plane perpendicular to the first direction.

[0024] In some embodiments, the terminal assembly method further includes:

[0025] The shell and the back of the flexible screen are bonded by a second adhesive layer, the second adhesive layer is located on both sides of the first adhesive layer along the first direction, and the stress of the second adhesive layer in the first direction is equal to the stress in the second direction.

[0026] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0027] It can be seen from the above embodiments that the first part and the second part of the shell of the present invention realize relative rotation through the rotating shaft, and drive the flexible screen to deform to present multiple states such as folding and unfolding. When changing from the flat state to the folded state, the direction in which the first part of the shell rotates relative to the second part, and the deformation direction of the flexible screen are both the first direction. Since the stress in the first direction is small, the first adhesive layer has little effect on the rotation of the shell and the deformation of the flexible screen, and the rotation of the first part and the second part, as well as the deformation of the flexible screen can be carried out smoothly. When the flexible screen is restored from the folded state to the flat state, the larger stress of the first adhesive layer in the second direction can be used to improve the fixing effect of the flexible screen and the shell in the second direction, thereby suppressing the generation of wrinkles.

[0028] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0030] Figure 1 It is one of the structural diagrams of a terminal;

[0031] Figure 2 This is the second schematic diagram of the structure of a terminal;

[0032] Figure 3 This is a third schematic diagram of the structure of a terminal;

[0033] Figure 4 is one of the structural schematic diagrams of a terminal according to an exemplary embodiment;

[0034] Figure 5 is a second schematic diagram of a terminal structure according to an exemplary embodiment;

[0035] Figure 6 is a third structural schematic diagram of a terminal according to an exemplary embodiment;

[0036] Figure 7 is a fourth structural schematic diagram of a terminal according to an exemplary embodiment;

[0037] Figure 8 is a schematic diagram showing stress states of the first adhesive layer in various directions according to an exemplary embodiment;

[0038] Fig. 9 The figure is a flow chart of a terminal assembly method according to an exemplary embodiment. DETAILED DESCRIPTION

[0039] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0040] In the description of the present invention, it needs to be understood that the orientations or positional relationships indicated by terms such as "center", "up", "down", "top", "bottom", "inside", and "outside" are based on the orientations or positional relationships shown in the accompanying drawings.

[0041] like Figure 1 As shown in FIG. 1 , a gap 140 may be reserved between the housing 120 and the flexible screen 110 near the rotation axis 130, and the dimension of the gap 140 along the first direction is a. The setting of the gap 140 enables the first part 121 and the second part 122 to rotate smoothly, and also enables the deformation of the flexible screen 110 to be unimpeded. However, when the flexible screen 110 is restored from the folded state to the flat state, the bending area of ​​the flexible screen 110 is plastically deformed due to stretching (i.e., Figure 2 The double arrows in the middle point to the direction), and the flexible screen 110 is prone to wrinkles 111. For details, see Figures 1 to 3 As shown, Figure 1 shows the terminal in a flattened state, Figure 2 A schematic diagram of the structure of the flexible screen 110 during the process of folding and deforming as the housing 120 rotates is shown. Figure 3 It is shown that by Figure 2 Folded state restored to Figure 1 After being flattened as shown, the bending area of ​​the flexible screen 110 is plastically deformed to produce wrinkles 111.

[0042] Figures 4 to 7 The schematic diagram of the structure of the terminal in the embodiment of the present disclosure is exemplarily shown. The terminal in the embodiment of the present disclosure mainly includes:

[0043] Flexible screen 110;

[0044] The housing 120 is mounted on the back of the flexible screen 110 and includes a first part 121 and a second part 122 arranged in parallel;

[0045] The rotating shaft 130 is located between the first part 121 and the second part 122. The first part 121 is rotatably connected to the rotating shaft 130, and / or the second part 122 is rotatably connected to the rotating shaft 130. When the first part 121 and the second part 122 rotate relative to each other through the rotating shaft 130, the flexible screen 110 is deformed.

[0046] The first adhesive layer 160 is bonded to the back of the shell 120 and the flexible screen 110; wherein the stress of the first adhesive layer 160 in the first direction is less than the stress in the second direction, the first direction is a direction perpendicular to the axis of the rotating shaft 130; the second direction is a direction within a perpendicular plane to the first direction.

[0047] In the disclosed embodiment, the first part 121 and the second part 122 of the shell 120 realize relative rotation through the rotating shaft 130, and drive the flexible screen 110 to deform to present multiple states such as folding and unfolding. When changing from the flattened state to the folded state, the direction in which the first part 121 of the shell 120 rotates relative to the second part 122, and the direction in which the flexible screen 110 deforms are both the first direction. Since the stress in the first direction is small, the first adhesive layer 160 has little effect on the rotation of the shell 120 and the deformation of the flexible screen 110, and the rotation of the first part 121 and the second part 122, as well as the deformation of the flexible screen 110 can be carried out smoothly. When the flexible screen 110 is restored from the folded state to the flattened state, the large stress of the first adhesive layer 160 in the second direction can improve the fixing effect of the flexible screen 110 and the shell 120 in the second direction, thereby suppressing the wrinkle 111 problem.

[0048] The wrinkle 111 problem of the flexible screen 110 specifically refers to, for example Figure 2 and Figure 5 As shown, when the first part 121 and the second part 122 of the housing 120 rotate in a direction in which the two parts are in contact, the flexible screen 110 is always in the outer bending process, and the tensile deformation of the bending area of ​​the flexible screen 110 relative to the rotating shaft 130 (such as Figure 5 The double arrow in the middle points to wrinkles 111 that cannot be restored in time.

[0049] Optionally, the distribution area of ​​the first adhesive layer 160 may be all areas between the flexible screen 110 and the housing 120, including the area where the hinge 130 is located. Alternatively, the first adhesive layer 160 may be located at least in an area corresponding to a bending area of ​​the flexible screen 110 where wrinkles 111 are easily generated, for example, a middle area of ​​the terminal.

[0050] The first direction refers to the direction in which the flexible screen 110 is deformed. Depending on the placement of the terminal, the folding of the flexible screen 110 includes left-right folding and up-down folding. Taking left-right folding based on the rotation of the shaft 130 as an example, when folding, the first direction in which the flexible screen 110 is deformed is the X-axis direction, and the second direction includes the Y-axis direction and / or the Z-axis direction.

[0051] In a specific example, the terminal takes a mobile phone as an example. For a mobile phone with a rectangular cross section, the X-axis direction corresponds to the width direction of the mobile phone, the Y-axis direction corresponds to the length direction of the mobile phone, and the Z-axis direction corresponds to the thickness direction of the mobile phone. When folded left and right, the first adhesive layer 160 is a weak stress axis in the X-axis, and a strong stress axis in the Y-axis and Z-axis. In the folded state, Figure 5 As shown in FIG. 1 , the main deformation direction of the flexible screen 110 is the X-axis direction. Since this direction is the weak stress axis direction, it can be seen from the stress-strain relationship that the weak stress axis direction has little constraint on rotation and is subjected to little force during rotation. In the flattened state, since the Z-axis direction is the strong stress axis direction, the fixing effect between the flexible screen 110 and the rotating shaft 130 is good. After the flexible screen 110 is restored from the folded state to the flattened state, as shown in FIG. Figure 7 As shown, due to the existence of internal stress in the Z-axis direction, the deformation of the wrinkles 111 is suppressed. Figure 6 The state shown refers to the flexible screen 110 being Figure 5 The folded state shown is Figure 7 The flattened state shown is a transition state during the transition, which will not be observed in actual use. Figure 6 The middle arrow indicates the stress direction of the first adhesive layer 160 on the bending area of ​​the flexible screen 110 along the Z-axis direction.

[0052] In addition to mobile phones, terminals can also be tablet computers, laptops or TVs.

[0053] When the flexible screen 110 is flipped outward, the two parts of the flexible screen 110 located in opposite directions can respectively display different content information, and the terminal can be used as two independent devices for two different users facing each other. Figure 4 and Figure 7 When in the flattened state shown, the user can obtain a large-screen display effect.

[0054] Generally, the flexible screen 110 refers to a bendable display screen made of flexible materials, for example, flexible materials such as organic light-emitting diodes (OLED).

[0055] The rotating shaft 130 may be hidden in the housing 120 or exposed outside the housing 120. When the rotating shaft 130 is exposed outside the housing 120, the first adhesive layer 160 may be distributed on the rotating shaft 130 as required.

[0056] The housing 120 can be used to support and install components such as a battery, a mainboard, a camera or a heat dissipation module in the terminal. The housing 120 can be made of a rigid material so as to provide a good support for the above components. The rigid material can be: metal, ceramic or engineering plastic.

[0057] Without limitation, the rotating shaft 130 is a shaft member, in which case the first portion 121 of the housing 120 may be fixedly connected to the rotating shaft 130, while the second portion 122 of the housing 120 is rotatably connected to the rotating shaft 130, and the first portion 121 and the second portion 122 may rotate relative to the rotating shaft 130. Alternatively, the second portion 122 of the housing 120 is fixedly connected to the rotating shaft 130, while the first portion 121 of the housing 120 is rotatably connected to the rotating shaft 130, and the first portion 121 and the second portion 122 may rotate relative to the rotating shaft 130. Alternatively, the first portion 121 and the second portion 122 of the housing 120 are independently rotatably connected to the rotating shaft 130, in which case the rotating shaft 130 may adopt a hinge or hinge structure. Of course, other structural forms of the rotating shaft 130 may also be adopted.

[0058] The first part 121 and the second part 122 of the housing 120 may be the same size, in which case the shaft 130 passes through the center of the terminal, and the bending area of ​​the flexible screen 110 is located in the middle. Alternatively, the first part 121 and the second part 122 of the housing 120 may be different sizes, the shaft 130 may be arranged to the left or right, and the bending area of ​​the flexible screen 110 may correspond to the shaft 130.

[0059] In other optional embodiments, the stress of the first adhesive layer 160 along the first direction is less than or equal to a predetermined ratio of the stress of the first adhesive layer 160 along the second direction.

[0060] When the stress of the first adhesive layer 160 along the first direction and the stress along the second direction meet a predetermined ratio, the reliability and experience effect of switching between the folded form and the flattened form can be further improved.

[0061] Without limitation, the predetermined ratio may range from 0.1 to 0.4. For example, the predetermined ratio may range from 0.1 to 0.3, or 0.1 to 0.2. Specifically, the predetermined ratio may be selected from: 0.1, 0.15, 0.2, 0.25, 0.3 or 0.4.

[0062] In a specific example, the internal stress data of the flexible screen 110 in the flattened state should satisfy that the weak axis internal stress is less than 20% of the strong axis internal stress. Here, the weak axis internal stress refers to the stress in the first direction of the first adhesive layer 160 on the flexible screen 110, and the strong axis internal stress refers to the stress in the second direction of the first adhesive layer 160 on the flexible screen 110.

[0063] In other optional embodiments, the area of ​​the first adhesive layer 160 is greater than or equal to the area of ​​the region where the flexible screen 110 is bent and deformed as the rotating shaft 130 rotates. In this way, the bent and deformed region of the flexible screen 110 can all be in contact with the first adhesive layer 160, ensuring that the flexible screen 110 is deformed and restored to a flat state, thereby improving the wrinkle removal effect.

[0064] like Figures 1 to 3 As shown, when a gap 140 is set between the flexible screen 110 and the housing 120, if the size a of the gap 140 is too large, the wrinkle 111 of the flexible screen 110 will be more obvious. If the size of the gap 140 is too small, the rotation effect of the shaft 130 will be affected, the folding radius will be affected, and the experience will be poor. The size of the gap 140 is difficult to determine.

[0065] In the disclosed embodiment, the flexible screen 110 has different sizes of areas of bending and deformation as the rotation angle varies. Generally, the larger the rotation angle, the larger the area of ​​the bending and deformation. The first adhesive layer 160 can be filled in the gap 140, and the area of ​​the first adhesive layer 160 is larger than the maximum deformation arc of the flexible screen 110 in the folded form to ensure full coverage of the bending and deformation area of ​​the flexible screen 110. In the folded state, the weaker first-direction stress of the first adhesive layer 160 does not affect the bending and deformation of the flexible screen 110. When it returns to the flattened state, the stronger second-direction stress of the first adhesive layer 160 will "pull" the bent and deformed flexible screen 110 toward the housing 120, helping the flexible screen 110 to quickly recover from deformation and suppress the formation of wrinkles.

[0066] In other optional embodiments, the terminal further includes:

[0067] The second adhesive layer 150 is bonded to the back of the housing 120 and the flexible screen 110 and is located on both sides of the first adhesive layer 160 along the first direction;

[0068] The stress of the second adhesive layer 150 in the first direction is equal to the stress of the second adhesive layer 150 in the second direction.

[0069] like Figures 4 to 7 As shown, the first adhesive layer 160 is located in the middle of the terminal, and the second adhesive layer 150 is located on both sides of the first adhesive layer 160. In addition to using the first adhesive layer 160 to bond and fix the flexible screen 110 and the housing 120, a second adhesive layer 150 may be further provided, and the second adhesive layer 150 and the first adhesive layer 160 are used to bond and fix the flexible screen 110 and the housing 120.

[0070] The stress of the first adhesive layer 160 along different directions is different, and the first adhesive layer 160 with anisotropic stress needs to be specially prepared. The second adhesive layer 150 can use a conventional product with the same or little difference in stress in each direction.

[0071] In other optional embodiments, the stress of the second adhesive layer 150 is at least greater than the stress of the first adhesive layer 160 in the second direction.

[0072] When the first adhesive layer 160 and the second adhesive layer 150 are provided at the same time, the first adhesive layer 160 is mainly used to overcome the wrinkle 111 problem of the flexible screen 110, and the second adhesive layer 150 is mainly used to connect and fix the flexible screen 110 and the housing 120. Selecting the second adhesive layer 150 with stronger bonding ability and higher stress is conducive to strengthening the fixing effect of the flexible screen 110 and the housing 120.

[0073] In other optional embodiments, the first adhesive layer 160 includes:

[0074] The first adhesive is distributed at intervals on the back side of the housing 120 and / or the flexible screen 110 along a first direction.

[0075] The stress of the first adhesive layer 160 is related to the adhesive force of the first adhesive. Taking the coating of the first adhesive on the housing 120 as an example, coating the first adhesive on the housing 120 at intervals along the first direction can reduce the distribution area of ​​the first adhesive along the first direction, so that the stress of the first adhesive layer 160 in the first direction is discrete, while the stress in the second direction is continuous, such as Figure 8 As shown, through this different distribution state, the first adhesive layer 160 has different stresses in the first direction and the second direction. This arrangement can reduce the stress of the first adhesive layer 160 along the first direction. The first adhesive can also be applied to the back of the flexible screen 110 at intervals.

[0076] Furthermore, grooves may be provided on the housing 120, the grooves being spaced apart in the first direction, and the first adhesive is added only in the grooves, which may also achieve that the first adhesive is spaced apart along the first direction between the housing 120 and the flexible screen 110. Moreover, due to the provision of the grooves, the amount of the first adhesive along the Z-axis direction of the terminal may be increased, further increasing the stress of the first adhesive layer 160 in the Z-axis direction.

[0077] The first adhesive layer 160 may use a paste-like first adhesive or a double-sided tape. Specifically, the first adhesive is distributed at intervals along the first direction on both sides of a substrate such as a fabric, a polymer film or a foam to form a double-sided tape. The double-sided tape is then placed between the flexible screen 110 and the housing 120.

[0078] In other optional embodiments, the first adhesive layer 160 includes:

[0079] The second adhesive and the third adhesive, the adhesive force of the second adhesive is greater than the adhesive force of the third adhesive, and the second adhesive and the third adhesive are alternately distributed on the back of the housing 120 and / or the flexible screen 110 along the first direction.

[0080] By alternately arranging two adhesives with different adhesive forces in the first direction, the distribution area of ​​the third adhesive with stronger adhesive force along the first direction is reduced, so as to reduce the stress of the first adhesive layer 160 in the first direction.

[0081] The difference in bonding strength may be caused by different materials of the adhesive or different viscosity of the adhesive.

[0082] Similarly, the second adhesive and the third adhesive in a paste state can be selected and applied to the back of the housing 120 and / or the flexible screen 110. Alternatively, the second adhesive and the third adhesive are applied at intervals along the first direction on both sides of a substrate such as a fabric, a polymer film or a foam to form a double-sided tape. The double-sided tape is then placed between the flexible screen 110 and the housing 120.

[0083] Without limitation, the first adhesive, the second adhesive and the third adhesive can be independently selected from acrylic or epoxy resin adhesives.

[0084] The present disclosure also provides a terminal assembly method, which is applied to the terminal described in any of the above embodiments. Fig. 9 As shown, it mainly includes:

[0085] Step S101, installing the first part 121 and the second part 122 of the housing 120 on the rotating shaft 130;

[0086] Step S102, bonding the shell 120 and the back of the flexible screen 110 through the first adhesive layer 160, wherein the stress of the first adhesive layer 160 in the first direction is less than the stress in the second direction, the first direction is a direction perpendicular to the axis of the rotating shaft 130; the second direction is a direction within a perpendicular plane to the first direction.

[0087] When the first part 121 and the second part 122 realize relative rotation through the rotating shaft 130 and drive the flexible screen 110 to deform to present various states such as folding and unfolding, the first adhesive layer 160 has little effect on the rotation of the housing 120 and the deformation of the flexible screen 110 due to the small stress in the first direction, and the rotation of the first part 121 and the second part 122, as well as the deformation of the flexible screen 110 can be carried out smoothly. When the flexible screen 110 is restored from the folded state to the flattened state, the large stress of the first adhesive layer 160 in the second direction can improve the fixing effect of the flexible screen 110 and the housing 120 in the second direction, and suppress the wrinkle 111 problem.

[0088] In other optional embodiments, the assembly method further includes:

[0089] The housing 120 and the back of the flexible screen 110 are bonded by the second adhesive layer 150 , the second adhesive layer 150 is located on both sides of the first adhesive layer 160 along the first direction, and the stress of the second adhesive layer 150 in the first direction is equal to the stress in the second direction.

[0090] When the first adhesive layer 160 and the second adhesive layer 150 are provided at the same time, the first adhesive layer 160 is mainly used to overcome the wrinkle 111 problem of the flexible screen 110, and the second adhesive layer 150 is mainly used to connect and fix the flexible screen 110 and the housing 120. Selecting the second adhesive layer 150 with stronger bonding ability and higher stress is conducive to strengthening the fixing effect of the flexible screen 110 and the housing 120.

[0091] In a specific example, the gap between the flexible screen 110 and the housing 120 at the position of the rotating shaft 130 is filled by the first adhesive layer 160 with anisotropic stress. The use area of ​​the first adhesive layer 160 should be larger than the maximum curvature of the folded form of the flexible screen 110 to ensure full coverage of the bending area. There are differences in the molecular bonding force in different axes of the X-axis / Y-axis / Z-axis. The specific stress design is determined by the folding form. Taking the left and right folding as an example, the first adhesive layer 160 is a weak stress axis in the X-axis, and the Y-axis and Z-axis are strong stress axes; in the folded state, the main deformation direction is the X-axis direction. Since this direction is the weak stress axis direction, it can be seen from the stress-strain relationship that the weak stress axis direction has little constraint on rotation and is subjected to little force during rotation. In the flattened form, since the Z-axis direction is the strong stress axis direction, the fixing effect between the flexible screen 110 and the rotating shaft 130 is good. After the flexible screen 110 is restored from the folded state to the flattened state, due to the existence of internal stress in the Z-axis direction, wrinkle deformation and other problems are suppressed. The technical solution of the disclosed example can enhance product competitiveness and enhance consumer experience.

[0092] The methods disclosed in several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0093] The features disclosed in several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0094] The features disclosed in several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments or device embodiments.

[0095] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the claims.

[0096] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A terminal, characterized in that: include: Flexible screen; A housing, mounted on the back of the flexible screen, comprising a first part and a second part arranged in parallel; A rotating shaft is located between the first part and the second part, the first part is rotatably connected to the rotating shaft, and / or the second part is rotatably connected to the rotating shaft; when the first part and the second part rotate relative to each other through the rotating shaft, the flexible screen is deformed; A first adhesive layer, bonding the housing and the back of the flexible screen; wherein the stress of the first adhesive layer in a first direction is less than the stress in a second direction, the first direction is a direction perpendicular to the axis of the rotating shaft; the second direction is a direction in a plane perpendicular to the first direction; A second adhesive layer, which is used to bond the housing and the back surface of the flexible screen and is located on both sides of the first adhesive layer along the first direction; The stress of the second adhesive layer in the first direction is equal to the stress of the second adhesive layer in the second direction.

2. The terminal according to claim 1, characterized in that The stress of the first adhesive layer along the first direction is less than or equal to a predetermined ratio of the stress of the first adhesive layer along the second direction.

3. The terminal according to claim 2, characterized in that: The predetermined ratio ranges from 0.1 to 0.

4.

4. The terminal according to claim 1, characterized in that: The area of ​​the first adhesive layer is greater than or equal to the area of ​​a region where the flexible screen bends and deforms as the shaft rotates.

5. The terminal according to claim 1, characterized in that: The stress of the second adhesive layer is at least greater than the stress of the first adhesive layer in the second direction.

6. The terminal according to claim 1, characterized in that: The first adhesive layer comprises: A first adhesive, wherein the first adhesive is distributed at intervals along the first direction on the back side of the housing and / or the flexible screen.

7. The terminal according to claim 1, characterized in that: The first adhesive layer comprises: A second adhesive and a third adhesive, the adhesive force of the second adhesive is greater than the adhesive force of the third adhesive, and the second adhesive and the third adhesive are alternately distributed along the first direction on the back of the shell and / or the flexible screen.

8. A terminal assembly method, applied to the terminal according to any one of claims 1 to 7, characterized in that: include: Mounting the first and second parts of the housing on the rotating shaft; The housing and the back of the flexible screen are bonded together by a first adhesive layer, wherein the stress of the first adhesive layer in a first direction is less than the stress in a second direction, the first direction is a direction perpendicular to the axis of the rotating shaft; the second direction is a direction in a plane perpendicular to the first direction; The shell and the back of the flexible screen are bonded by a second adhesive layer, the second adhesive layer is located on both sides of the first adhesive layer along the first direction, and the stress of the second adhesive layer in the first direction is equal to the stress in the second direction.

Images