An electronic device

Abstract

The present application relates to an electronic device, comprising a flexible display and a middle frame assembly. The flexible display comprises a glue layer, and the middle frame assembly is connected to the flexible display and is used to drive the flexible display to rotate so that the flexible display can switch between an unfolded state and a folded state. The middle frame assembly is provided with a glue groove, which is used to accommodate the colloid overflowing from the flexible display when the flexible display switches from an unfolded state to a folded state. The glue groove can provide a certain flow space for the overflowing colloid, so as to reduce the possibility that the overflowing colloid directly contacts the surface of the middle frame assembly and causes adhesion between the flexible display and the middle frame assembly, thereby reducing the possibility that the colloid is pulled and deformed between the flexible display and the middle frame assembly and emits abnormal noise, thereby reducing the possibility that the user is disturbed by the abnormal noise and improving the user experience.

Description

Technical Field

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

[0002] With technological advancements, foldable electronic devices have become increasingly popular. However, when folding a foldable device from its unfolded state, adhesive can easily overflow from the screen. This overflowing adhesive can cause deformation and produce unusual noises as the screen unfolds and folds. This noise can be disruptive to users and affect their experience. Summary of the Invention

[0003] The purpose of this application is to provide an electronic device to solve the problem of abnormal noise caused by colloid overflowing from the screen in the above-mentioned prior art.

[0004] The present application provides an electronic device, including a flexible display and a middle frame assembly, wherein the flexible display includes a glue layer, and the middle frame assembly is connected to the flexible display and is used to drive the flexible display to rotate so that the flexible display can switch between an unfolded state and a folded state; the middle frame assembly is provided with a glue groove, and the glue groove is used to accommodate glue overflowing from the flexible display when the flexible display switches from the unfolded state to the folded state.

[0005] The glue holding groove can contain the glue overflowing from the glue layer of the flexible display screen, that is, the glue holding groove can provide a certain flow space for the overflowing glue, so as to reduce the possibility of the overflowing glue directly contacting the surface of the middle frame assembly and causing adhesion between the flexible display screen and the middle frame assembly, thereby reducing the possibility of the glue being pulled and deformed between the flexible display screen and the middle frame assembly and emitting abnormal noise, thereby reducing the possibility of users being disturbed by abnormal noise and improving the user experience.

[0006] In a possible embodiment, the middle frame assembly includes a middle frame body and a decorative piece connected to the middle frame body, the flexible display is carried on the middle frame body, the decorative piece is located at the edge of the flexible display, and the glue groove is opened on the decorative piece.

[0007] The decorative piece can cover the edge of the flexible display, thereby protecting it. At the same time, the decorative piece can also cover the gap between the flexible display and the middle frame, thus playing a decorative role. The adhesive groove is provided in the decorative piece to contain the colloid that overflows from the flexible display and provides a certain flow space for the colloid, thereby reducing the possibility of the overflowing colloid directly contacting the surface of the decorative piece and causing adhesion between the flexible display and the decorative piece. This reduces the possibility of the colloid being pulled and deformed between the flexible display and the decorative piece, thereby improving the user experience.

[0008] In a possible embodiment, the glue receiving groove is opened on the surface of the decorative component facing the flexible display screen, so that the glue receiving groove can receive the glue overflowing from the flexible display screen, thereby reducing the possibility of adhesion between the flexible display screen and the decorative component.

[0009] In one possible embodiment, the depth of the adhesive groove is perpendicular to the plane of the inner surface of the decorative component, thereby reducing the difficulty of processing the decorative component and improving its processing efficiency. At the same time, this design helps to ensure that the depth of the adhesive groove is relatively uniform, thereby improving the adhesive groove's ability to contain overflowing adhesive and further reducing the possibility of adhesive adhesion to the decorative component.

[0010] In a possible embodiment, the decorative piece includes a first decorative piece and a second decorative piece, the first decorative piece and the second decorative piece are respectively located at two ends of the flexible display screen, and the glue containing groove is opened in the first decorative piece and / or the second decorative piece.

[0011] The first decorative piece and the second decorative piece respectively protect and decorate the two ends of the flexible display screen. By providing a glue-receiving groove on the first decorative piece and / or the second decorative piece, the possibility of adhesion between the flexible display screen and the first decorative piece and / or the second decorative piece is reduced, thereby reducing the possibility of abnormal noise caused by the glue being pulled and deformed between the flexible display screen and the above-mentioned decorative pieces.

[0012] In a possible embodiment, the middle frame body includes a first middle frame and a second middle frame, the flexible display includes a first display carried by the first middle frame and a second display carried by the second middle frame, the first middle frame and the second middle frame are rotatably connected to drive the first display to rotate relative to the second display, the first decorative piece is located at one end of the first display and is connected to the first middle frame, and the second decorative piece is located at one end of the second display and is connected to the second middle frame.

[0013] The first display can serve as the main screen of the electronic device, while the second display can serve as the secondary screen. The first decorative piece protects the edges of the first display and covers the gap between the first display and the first middle frame, thereby providing a decorative effect and extending the service life of the first display. The second decorative piece protects the edges of the second display and covers the gap between the second display and the second middle frame, thereby providing a decorative effect and extending the service life of the second display.

[0014] In a possible embodiment, the first display screen has a first curved portion, the first middle frame has a second curved portion, the first decorative piece has a third curved portion, the first curved portion is located between the second curved portion and the third curved portion, and the glue holding groove is opened in the third curved portion.

[0015] Among them, the first curved portion can be formed by bending the end of the first display screen, and the shape of the second curved portion can correspond to the first curved portion to reduce the possibility of a gap between the first curved portion and the second curved portion, thereby helping to improve the stability and reliability of the first display screen set on the first middle frame. The third curved portion covers the top of the first curved portion, thereby protecting and decorating the first curved portion. At the same time, the third curved portion can also limit the first curved portion, reducing the possibility of the first curved portion tilting away from the second curved portion, thereby further improving the stability of the connection between the first display screen and the first middle frame, and ensuring that the first display screen can be used normally and stably. The glue holding groove is opened on the third curved portion, which is conducive to its containing the glue overflowing from the first display screen, so as to reduce the possibility of the first display screen and the first decorative component adhering to each other and causing abnormal noise problems, thereby improving the user experience.

[0016] In a possible implementation manner, the third arc-shaped portion has a first outer end portion, and the glue containing groove is opened on a side of the first outer end portion away from the outside.

[0017] The first outer end portion can cover the top of the first curved portion to limit the first curved portion and reduce the possibility of the first curved portion tilting away from the second curved portion. If the first glue-containing groove is opened on the first outer end portion, it will easily cause the first curved portion to tilt toward the inside of the first glue-containing groove, reducing the limiting effect of the first outer end portion on the first display screen, thereby affecting the normal use of the first display screen. In this embodiment, by setting the first glue-containing groove on the inner side of the first outer end portion, it is beneficial to ensure the limiting effect of the first outer end portion on the first display screen, thereby improving the stability of the first display screen setting and enabling the first display screen to be used normally and stably.

[0018] In one possible embodiment, the second display screen has a first straight portion, the second middle frame has a second straight portion, the second decorative piece has a third straight portion, the first straight portion is located between the second straight portion and the third straight portion, and the glue groove is opened in the third straight portion.

[0019] The third straight portion can cover the top of the first straight portion to protect and decorate the first straight portion. At the same time, the third straight portion also acts as a limiter for the first straight portion, reducing the possibility of the first straight portion tilting away from the second straight portion, thereby improving the stability and reliability of the second display screen in the second middle frame. The adhesive holding groove is provided on the third straight portion to facilitate its containment of the adhesive overflowing from the second display screen, thereby reducing the possibility of the overflowing adhesive directly contacting the surface of the second decorative piece and causing adhesion between the second display screen and the second decorative piece. This reduces the possibility of the adhesive being pulled and deformed between the second display screen and the second decorative piece, thereby improving the user experience.

[0020] In a possible implementation manner, the third straight portion has a second outer end portion, and the glue containing groove is opened on a side of the second outer end portion away from the outside.

[0021] The second outer end portion can cover the top of the first straight portion to limit the first straight portion and reduce the possibility of the first straight portion shifting away from the second straight portion. If the second glue-containing groove is opened on the second outer end portion, the effect of the second outer end portion on the first straight portion is reduced, making it easier for the first straight portion to shift into the second glue-containing groove, thereby easily affecting the normal use of the second display screen. In this embodiment, by arranging the second glue-containing groove on the inner side of the second outer end portion, it is helpful to ensure the limiting effect of the second outer end portion on the second display screen, thereby improving the stability of the second display screen setting and enabling the normal and stable use of the second display screen.

[0022] In one possible embodiment, the glue layer has a glue overflow area. When the flexible display screen switches from an unfolded state to a folded state, the glue overflowing from the glue layer can enter the glue overflow area. Along the thickness direction of the flexible display screen, the projection of the glue overflow area is located within the projection of the glue containing groove.

[0023] The position of the glue receiving groove corresponds to the position of the glue overflow area of ​​the glue layer, so that the glue receiving groove can accurately receive the glue overflowing through the glue overflow area, reducing the possibility of the overflowing glue falling outside the glue receiving groove and causing the flexible display screen and the decorative part to adhere.

[0024] In one possible embodiment, the flexible display screen includes at least a first film layer, a second film layer and a third film layer, the first film layer and the second film layer are connected by the adhesive layer, and when the flexible display screen is in a folded state, a first step structure is formed between the first film layer and the second film layer, and the glue overflow area is located in the first step structure; and / or, the second film layer and the third film layer are connected by the adhesive layer, and when the flexible display screen is in a folded state, a second step structure is formed between the second film layer and the third film layer, and the glue overflow area is located in the second step structure.

[0025] When the flexible display screen switches from the unfolded state to the folded state, a first step structure is formed between the first film layer and the second film layer due to the different bending radius, and the above-mentioned glue overflow area can be located on the first step structure. Similarly, a second step structure is formed between the second film layer and the third film layer, and the above-mentioned glue overflow area can also be located on the second step structure. The projections of the glue overflow area on the first step structure and the glue overflow area on the second step structure are both located within the projection of the glue containing groove, so as to reduce the possibility that the glue overflowing from the glue overflowing area on the first step structure or the glue overflowing from the glue overflowing area on the second step structure falls outside the glue containing groove, thereby causing the flexible display screen and the decorative part to adhere to each other.

[0026] In a possible embodiment, the first film layer, the second film layer and the third film layer are arranged in sequence in a direction close to the middle frame body, and the relationship between the length dimension of the opening of the glue containing groove and the displacement amount of the first film layer during the state switching process satisfies: D≥L, wherein D is the length dimension of the opening of the glue containing groove, and L is the displacement amount of the first film layer relative to the decorative component during the state switching process.

[0027] If the length of the opening of the glue groove is too small, the glue overflowing from the flexible display screen cannot be completely contained in the glue groove, increasing the risk of direct adhesion between the glue and the decorative parts, which can easily lead to the occurrence of abnormal noise problems, thereby affecting the user experience. If the length of the opening of the glue groove is too large, it can easily affect the structural strength of the decorative parts, making the decorative parts prone to deformation or cracking, affecting the service life of the decorative parts. At the same time, it can also make the end of the flexible display screen easily tilted into the glue groove, that is, reducing the limiting effect of the decorative parts on the flexible display screen, thereby reducing the stability of the flexible display screen setting. In this embodiment, by limiting the length of the opening of the glue groove, while ensuring the structural strength of the decorative parts, it is also beneficial to improve the limiting effect of the decorative parts on the flexible display screen. At the same time, the glue groove can reliably contain the glue overflowing from the flexible display screen, reducing the possibility of the glue overflowing from the flexible display screen adhering to the decorative parts, thereby reducing the possibility of the above-mentioned abnormal noise problems, thereby improving the user experience.

[0028] It should be understood that the foregoing general description and the following detailed description are merely illustrative and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of an electronic device in an unfolded state provided by an embodiment of the present application;

[0030] Figure 2 A schematic diagram of an electronic device during a folding process provided by an embodiment of the present application;

[0031] Figure 3 A schematic diagram of an electronic device in a folded state provided by an embodiment of the present application;

[0032] Figure 4 A schematic diagram of a middle frame assembly and a flexible display screen of an electronic device in the related art;

[0033] Figure 5 A partial schematic diagram of a flexible display screen of an electronic device in a folded state in the related art;

[0034] Figure 6 A partial schematic diagram of a flexible display screen of an electronic device in the related art when glue overflow occurs;

[0035] Figure 7 A schematic diagram of a middle frame assembly and a flexible display screen of an electronic device provided in an embodiment of the present application;

[0036] Figure 8 A partial schematic diagram of the flexible display screen provided in an embodiment of the present application in a folded state;

[0037] Figure 9 A cross-sectional view of an electronic device in an unfolded state provided by an embodiment of the present application;

[0038] Figure 10 A cross-sectional view of an electronic device in a folded state provided by an embodiment of the present application;

[0039] Figure 11 for Figure 9 A partial enlarged view of the first display screen, the first middle frame, and the first decorative member;

[0040] Figure 12 A partial schematic diagram of a first display screen and a first decorative element provided in one embodiment of the present application;

[0041] Figure 13 for Figure 12 A partial schematic diagram of the first display screen when glue overflow occurs;

[0042] Figure 14 A partial schematic diagram of a first display screen, a first middle frame, and a first decorative element provided in another embodiment of the present application;

[0043] Figure 15 for Figure 14 A partial schematic diagram of the first display screen moving relative to the first decorative element;

[0044] Figure 16 for Figure 9 A partial schematic diagram of the second display screen, the second middle frame, and the second decorative element;

[0045] Figure 17 for Figure 16 A partial schematic diagram of the second display screen when glue overflow occurs;

[0046] Figure 18 A partial schematic diagram of a first display screen, a first middle frame, and a first decorative element provided in another embodiment of the present application;

[0047] Figure 19 for Figure 18 A partial schematic diagram of the second display screen moving relative to the second decorative element.

[0048] Reference numerals:

[0049] 100-Electronic equipment;

[0050] 10-flexible display screen; 11-glue layer; 111-glue overflow area; 111a-first glue overflow area; 111b-second glue overflow area; 111c-third glue overflow area; 111b-fourth glue overflow area; 12-first display screen; 121-first curved portion; 13-second display screen; 131-first straight portion; 10a-first film layer; 10b-second film layer; 10c-third film layer;

[0051] 20 - middle frame assembly; 21 - adhesive groove; 211 - first adhesive groove; 212 - second adhesive groove; 22 - middle frame body; 221 - first middle frame; 221A - second curved portion; 222 - second middle frame; 222A - second straight portion; 23 - decorative element; 231 - first decorative element; 231A - third curved portion; 231Aa - first outer end portion; 231B - first raised portion; 232 - second decorative element; 232A - third straight portion; 232Aa - second outer end portion; 232B - second raised portion; 24 - rotating shaft;

[0052] 31-first shell; 32-second shell;

[0053] 4-adhesive layer;

[0054] 100'-electronic device; 10'-flexible display; 10a'-first film layer; 10b'-second film layer; 10c'-third film layer; 11'-glue layer; 12'-colloid; 20'-middle frame assembly; 24'-rotating shaft.

[0055] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0057] In the description of this application, unless otherwise specified or limited, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0058] In the description of this specification, it should be understood that the directional words such as "upper" and "lower" described in the embodiments of the present application are described from the perspectives shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it should be understood that when it is mentioned that an element is connected to another element "on" or "under", it can not only be directly connected to the other element "on" or "under", but also indirectly connected to the other element "on" or "under" through an intermediate element.

[0059] With the advancement of science and technology, the form factors of electronic devices are constantly evolving. Currently, foldable electronic devices are becoming increasingly popular. Foldable electronic devices can be used in two states: unfolded and folded. The folded state is smaller, making it easier for users to carry around, while the unfolded state offers a larger screen area, providing users with a better visual experience.

[0060] When folding a foldable electronic device, its screen is prone to adhesive overflow, causing the screen to stick to the midframe assembly. When the electronic device switches between states again, the adhesive between the screen and the midframe assembly is pulled due to the relative movement of the screen and the midframe assembly, causing an unusual sound caused by the adhesive being pulled, which affects the user experience.

[0061] In response to the above problems, Figure 1 As shown, the present application provides an electronic device 100, which can be a terminal product with a foldable function, such as a mobile phone, a tablet computer, a laptop computer, or a wearable device.

[0062] The following is a detailed description using the electronic device 100 as a foldable mobile phone as an example. Figure 1 As shown, electronic device 100 has a flexible display screen 10, which can be a flexible organic light-emitting transistor. When electronic device 100 is unfolded, the flexible display screen 10 has a larger area, which is conducive to providing a clearer image and also facilitates user actions such as clicking, sliding, or writing, thereby improving the user experience.

[0063] like Figure 2 As shown, according to the user's needs, the electronic device 100 can be folded along the direction A shown in the figure. Figure 3 As shown, the folded electronic device 100 is small in size and easy to carry. The electronic device 100 can be folded in an outward folding manner, so that when the electronic device 100 is in the folded state, the flexible display screen 10 can be located on the outer surface of the electronic device 100, so that the user can perform related operations, thereby improving the user experience.

[0064] like Figure 4 As shown, a foldable electronic device 100' currently includes a flexible display 10' and a midframe assembly 20'. The flexible display 10' is supported by the midframe assembly 20'. The midframe assembly 20' has a hinge 24'. Portions on either side of the hinge 24' can rotate about the hinge 24', allowing the midframe assembly 20' to rotate the flexible display 10', thereby enabling the flexible display 10' to fold and unfold.

[0065] The flexible display screen 10' may include a first film layer 10a', a second film layer 10b' and a third film layer 10c' from top to bottom. The first film layer 10a' is connected to the second film layer 10b' via an adhesive layer 11', and the second film layer 10b' is connected to the third film layer 10c' via an adhesive layer 11'.

[0066] Also refer to Figure 5 , Figure 5The figure shows the local state of the flexible display screen 10' after being folded. When the flexible display screen 10' is in the folded state, a step-like structure appears at its end. The reason for the generation of this step-like structure is that when the middle frame assembly 20' drives the flexible display screen 10' to rotate, the first film layer 10a' is farther away from the middle frame assembly 20', and its bending radius is larger. The second film layer 10b' is closer to the middle frame assembly 20', and its bending radius is smaller. Therefore, after the flexible display screen 10' is folded, the end of the first film layer 10a' will be misaligned with the end of the second film layer 10b', thereby forming the above-mentioned step-like structure. The step-like structure generated between the second film layer 10b' and the third film layer 10c' is the same as the principle of the step-like structure generated between the first film layer 10a' and the second film layer 10b', and will not be repeated here.

[0067] like Figure 6 As shown, after the aforementioned stepped structure is formed, the end of the adhesive layer 11' between the first film layer 10a' and the second film layer 10b' is exposed between the two, causing the colloid 12' within the adhesive layer 11' to overflow. The reason for the glue overflow between the second film layer 10b' and the third film layer 10c' is the same as the reason for the glue overflow between the first film layer 10a' and the second film layer 10b' described above, and will not be repeated here. Due to the small gap between the middle frame assembly 20' and the flexible display 10', the overflowing colloid 12' can easily adhere the flexible display 10' to the middle frame assembly 20'. When the electronic device 100' switches state again, the flexible display 10' will move relative to the middle frame assembly 20'. At this time, the colloid 12' adhered between the flexible display 10' and the middle frame assembly 20' will be stretched and deformed. As the colloid 12' itself is stretched and deformed, it will emit an abnormal sound, which will interfere with the user's normal use, thereby affecting the user's experience.

[0068] On the other hand, when currently folded, flexible displays of electronic devices bend, and the resulting bending stress is primarily concentrated in the adhesive layer in the bending area. In related technologies, the colloids used in the screens of foldable electronic devices are generally high-modulus colloids, which have poor creep flow properties. When the screen is bent, the colloid in the bending area generates significant bending stress, which can easily lead to defects such as whitening and bubbles on the screen, causing screen failure, shortening the screen's service life, and creating a poor user experience.

[0069] like Figure 7As shown, in the embodiment of the present application, the electronic device 100 includes a middle frame assembly 20, and the flexible display screen 10 is supported by the middle frame assembly 20. The middle frame assembly 20 has a rotating shaft 24, and the parts on both sides of the rotating shaft 24 can rotate around the rotating shaft 24, so that the middle frame assembly 20 can drive the flexible display screen 10 to rotate, thereby realizing the expansion and folding of the flexible display screen 10, that is, realizing the foldable function of the electronic device 100.

[0070] The flexible display 10 can have a multi-layer structure. Specifically, the flexible display 10 can include, from top to bottom, a first film layer 10a, a second film layer 10b, and a third film layer 10c. The first film layer 10a is connected to the second film layer 10b via an adhesive layer 11, and the second film layer 10b is connected to the third film layer 10c via an adhesive layer 11. The first film layer 10a can be made of CPI, the second film layer 10b can be made of TPU, and the third film layer 10c can be made of PET. The colloid in the adhesive layer 11 can be a low-modulus colloid, which can include a methacrylic acid copolymer and a crosslinking agent.

[0071] Compared to related technologies, the adhesive layer 11 of the flexible display 10 in the embodiment of the present application uses a low-modulus glue. Low-modulus colloids have a strong creep flow capability, which helps reduce the bending stress generated in the bending zone of the flexible display 10 during the folding process of the electronic device 100. This helps improve the performance of the flexible display 10, extends the service life of the flexible display 10, and enables repeated opening and closing actions, thereby facilitating the normal use of the electronic device 100 and improving the user experience. On the other hand, the use of low-modulus glue helps reduce the thickness requirement of the flexible display 10, thereby facilitating the lightweight and thin design of the entire electronic device 100.

[0072] Specifically, the first film layer 10a, the second film layer 10b, and the third film layer 10c in the flexible display 10 can be arranged sequentially in a direction approaching the middle frame assembly 20. That is, the first film layer 10a can be located at the end of the flexible display 10 closer to the outside world, and the second film layer 10b can be located at the end of the flexible display 10 farther from the outside world. When the flexible display 10 is in the unfolded state, the ends of the film layers in the flexible display 10 are aligned with each other.

[0073] refer to Figure 8 , Figure 8 The figure shows a partial state of the flexible display screen 10 after folding. When the flexible display screen 10 is in the folded state, there is a glue overflow area 111 on the step-shaped structure between each film layer. The glue overflowing from the glue layer 11 can enter the glue overflow area 111. Please continue to refer to Figure 7As shown, the middle frame assembly 20 is provided with a glue receiving groove 21, which can receive glue overflowing from the glue overflow area 111 of the flexible display 10. Specifically, both ends of the middle frame assembly 20 can be provided with a glue receiving groove 21, and the two glue receiving grooves 21 correspond to the two ends of the flexible display 10, respectively, to receive glue overflowing from the glue overflow area 111 at both ends of the flexible display 10.

[0074] In the embodiment of the present application, a glue containing groove 21 is provided on the middle frame assembly 20. The glue containing groove 21 can contain the glue overflowing from the glue layer 11 of the flexible display screen 10. That is, the glue containing groove 21 can provide a certain flow space for the overflowing glue, so as to reduce the possibility that the overflowing glue directly contacts the surface of the middle frame assembly 20 and causes the flexible display screen 10 and the middle frame assembly 20 to adhere to each other, thereby reducing the situation where the glue is pulled and deformed between the flexible display screen 10 and the middle frame assembly 20 and emits abnormal noise, thereby protecting users from abnormal noise interference and improving the user experience.

[0075] like Figure 7 As shown, in some embodiments, the adhesive groove 21 can be opened on the surface of the middle frame assembly 20 facing the flexible display screen 10 , so that the adhesive groove 21 can receive the adhesive overflowing from the flexible display screen 10 .

[0076] In some embodiments, the depth direction of the glue groove 21 is orthogonal to the plane where the inner surface of the middle frame assembly 20 is located, that is, the glue groove 21 can be opened in a direction roughly perpendicular to the inner surface of the middle frame assembly 20 to reduce the processing difficulty of the middle frame assembly 20 and improve the processing efficiency of the middle frame assembly 20.

[0077] In some embodiments, the depth H of the glue groove 21 can be 0.05mm to 0.2mm. For example, the depth of the glue groove 21 can be 0.05mm, 0.06mm, 0.08mm, 0.1mm, 0.12mm, 0.14mm, 0.16mm, 0.18mm or 0.2mm, and of course it can also be other values ​​within the above range. If the depth of the glue groove 21 is too small, the glue overflowing from the flexible display 10 will quickly fill the glue groove 21, causing the flexible display 10 to stick to the middle frame assembly 20, and then the above-mentioned abnormal noise problem will occur during the state switching of the electronic device 100, giving the user a bad user experience. If the depth of the glue groove 21 is too large, it is easy to affect the performance of the structural strength and other aspects of the middle frame assembly 20, making the middle frame assembly 20 prone to deformation or breakage, thereby affecting the service life of the middle frame assembly 20. Therefore, designing the depth of the adhesive groove 21 within the aforementioned range not only allows the adhesive groove 21 to contain overflowing adhesive, thereby reducing the possibility of adhesive adhering to the middle frame assembly 20 and causing abnormal noise in the electronic device 100, but also helps to ensure the overall structural strength of the middle frame assembly 20, thereby extending the service life of the middle frame assembly 20.

[0078] like Figure 9 As shown, the above-mentioned middle frame assembly 20 includes a middle frame body 22 and a decorative part 23. The flexible display screen 10 is carried on the middle frame body 22. Specifically, the flexible display screen 10 can be bonded to the middle frame body 22. The middle frame body 22 can drive the flexible display screen 10 to rotate around the rotating shaft 24. The decorative part 23 is arranged at the edge of the flexible display screen 10 and is connected to the middle frame body 22. Specifically, the decorative part 23 can be bonded to the middle frame body 22. There is a certain gap between the decorative part 23 and the middle frame body 22. The end of the flexible display screen 10 can extend into the gap, so that the decorative part 23 can cover the edge of the flexible display screen 10, thereby protecting the edge of the flexible display screen 10. At the same time, the decorative part 23 can also cover the gap between the flexible display screen 10 and the middle frame body 22, thereby playing a decorative role.

[0079] The flexible display screen 10 may include a first display screen 12 and a second display screen 13. The first display screen 12 and the second display screen 13 are respectively two non-detachable parts of the above-mentioned flexible display screen 10, that is, it can be understood that the first display screen 12 and the second display screen 13 are a whole, and the two are not two independently arranged display screens. Driven by the middle frame body 22, the first display screen 12 can rotate relative to the second display screen 13 around the rotating shaft 24. Among them, the first display screen 12 can be used as the main screen of the electronic device 100, and the second display screen 13 can be used as the sub-screen of the electronic device 100. The first display screen 12 and the second display screen 13 can be used as split screens. When the electronic device 100 is in the unfolded state, the first display screen 12 and the second display screen 13 are located in the same plane, thereby increasing the area of ​​the entire flexible display screen 10, so as to provide users with a better visual experience.

[0080] The middle frame body 22 includes a first middle frame 221 and a second middle frame 222. The first display screen 12 is supported by the first middle frame 221 and can be bonded to the first middle frame 221. The second display screen 13 is supported by the second middle frame 222 and can be bonded to the second middle frame 222. The first and second middle frames 221 and 222 are connected by a rotating shaft 24, allowing the first middle frame 221 to rotate relative to the second middle frame 222 around the rotating shaft 24, thereby driving the first display screen 12 to rotate relative to the second display screen 13.

[0081] A first housing 31 is provided on the side of the first middle frame 221 facing away from the first display screen 12, and a second housing 32 is provided on the side of the second middle frame 222 facing away from the second display screen 13. The first housing 31 and the second housing 32 protect components such as a battery (not shown) within the electronic device 100. When the electronic device 100 is in the unfolded state, the first housing 31 and the second housing 32 can be in the same plane.

[0082] The decorative member 23 may include a first decorative member 231 and a second decorative member 232. The first decorative member 231 is located at the edge of the first display screen 12 and may be bonded to the first middle frame 221. The first decorative member 231 protects the edge of the first display screen 12 and covers the gap between the first display screen 12 and the first middle frame 221. The second decorative member 232 is located at the edge of the second display screen 13 and may be bonded to the second middle frame 222. The second decorative member 232 protects the edge of the second display screen 13 and covers the gap between the second display screen 13 and the second middle frame 222.

[0083] like Figure 10As shown, when the electronic device 100 is in the folded state, the first display screen 12 and the second display screen 13 are located on the upper and lower surfaces of the electronic device 100, respectively, and the user can operate the first display screen 12 or the second display screen 13 independently. The first housing 31 and the second housing 32 are located on the inner side of the electronic device 100, and the first housing 31 can abut against the second housing 32. In this case, the electronic device 100 has a small area and volume, making it easy for the user to carry.

[0084] like Figure 11 As shown, the first display screen 12 has a first curved portion 121, which can be formed by bending the end of the first display screen 12. The first middle frame 221 has a second curved portion 221A, the shape of which can correspond to the first curved portion 121 to reduce the possibility of a gap between the first curved portion 121 and the second curved portion 221A, thereby improving the stability and reliability of the first display screen 12 on the first middle frame 221.

[0085] The first decorative member 231 includes a third curved portion 231A, which bends toward the first curved portion 121 and covers the first curved portion 121, thereby protecting and decorating the first curved portion 121. Furthermore, the third curved portion 231A acts as a limiter for the first curved portion 121, reducing the possibility of the first curved portion 121 tilting away from the second curved portion 221A. This further enhances the stability of the connection between the first display 12 and the first middle frame 221, ensuring normal and stable operation of the first display 12.

[0086] The first decorative piece 231 further has a first protrusion 231B, which is inserted into the first middle frame 221 . The first protrusion 231B and the first middle frame 221 can be bonded together by glue to achieve the connection between the first decorative piece 231 and the first middle frame 221 .

[0087] The first decorative member 231 has a first adhesive receiving groove 211 on its surface facing the first display screen 12. Specifically, the first adhesive receiving groove 211 can be provided on the third curved portion 231A. This groove can contain adhesive that overflows from the first display screen 12 and provide a certain amount of space for the adhesive to flow, thereby reducing the possibility of the adhesive overflowing directly contacting the surface of the first decorative member 231 and causing adhesion between the first display screen 12 and the first decorative member 231. This also reduces the possibility of the adhesive being pulled and deformed between the first display screen 12 and the first decorative member 231, thereby improving the user experience.

[0088] like Figure 12As shown, the third curved portion 231A has a first outer end 231Aa, and the first adhesive groove 211 can be opened on the inner side of the first outer end 231Aa, that is, on the side away from the outside. The first outer end 231Aa can cover the top of the first curved portion 121 to limit the first curved portion 121 and reduce the possibility of the first curved portion 121 tilting away from the second curved portion 221A. If the first adhesive groove 211 is opened on the first outer end 231Aa, it is easy to cause the first curved portion 121 to tilt toward the inside of the first adhesive groove 211, reducing the limiting effect of the first outer end 231Aa on the first display screen 12, thereby affecting the normal use of the first display screen 12. In the embodiment of the present application, by setting the first adhesive groove 211 on the inner side of the first outer end 231Aa, it is beneficial to ensure the limiting effect of the first outer end 231Aa on the first display screen 12, thereby improving the stability of the first display screen 12 and enabling the first display screen 12 to be used normally and stably.

[0089] like Figure 12 As shown, in some embodiments, the first adhesive receiving groove 211 can be opened in a direction substantially perpendicular to the inner surface of the third curved portion 231A to reduce the difficulty in processing the first decorative member 231. Furthermore, since the inner surface of the third curved portion 231A is a curved surface, this design allows the first adhesive receiving groove 211 to have a relatively uniform depth, thereby improving the first adhesive receiving groove 211's ability to contain overflowing adhesive and reducing the possibility of adhesive adhering to the first decorative member 231.

[0090] In some other embodiments, the first glue containing groove 211 may also be opened along a direction inclined to the inner surface of the third arc-shaped portion 231A, as long as the use requirements of the first glue containing groove 211 can be met.

[0091] In some embodiments, the cross-sectional shape of the first adhesive containing groove 211 may be rectangular, or may be trapezoidal, U-shaped, V-shaped, or other shapes, as long as the use requirements of the first adhesive containing groove 211 are met.

[0092] In some embodiments, the depth of the first glue containing groove 211 can be 0.05mm to 0.2mm. For example, the depth of the first glue containing groove 211 can be 0.05mm, 0.06mm, 0.08mm, 0.1mm, 0.12mm, 0.14mm, 0.16mm, 0.18mm or 0.2mm, and of course it can also be other values ​​within the above range. The depth of the first glue containing groove 211 is designed to be within the above range so that the first glue containing groove 211 can provide a certain flow space for the colloid overflowing from the first display screen 12, thereby helping to reduce the possibility of adhesion between the colloid and the first decorative part 231. At the same time, it is also beneficial to ensure the structural strength of the first decorative part 231, reduce the possibility of deformation or cracking of the first decorative part 231, and extend the service life of the first decorative part 231.

[0093] like Figure 13 As shown, the first display screen 12 has a glue overflow area 111. When the flexible display screen 10 switches from the unfolded state to the folded state, the glue overflowing from the glue layer 11 of the first display screen 12 can enter the glue overflow area 111. Along the thickness direction of the first display screen 12, the projection of the glue overflow area 111 is located within the projection of the first glue receiving groove 211. That is, the opening position of the first glue receiving groove 211 corresponds to the position of the glue overflow area 111 of the first display screen 12. This allows the first glue receiving groove 211 to accurately receive the glue overflowing from the glue overflow area 111 and provide a certain flow space for the glue, thereby reducing the possibility of the glue adhering to the first decorative member 231.

[0094] Specifically, the glue overflow area 111 includes a first glue overflow area 111a and a second glue overflow area 111b. When the flexible display screen 10 switches from the unfolded state to the folded state, a first step structure is formed between the first film layer 10a and the second film layer 10b of the first display screen 12 due to different bending radii. The first glue overflow area 111a can be located on the first step structure. Similarly, a second step structure is formed between the second film layer 10b and the third film layer 10c, and the second glue overflow area 111b can be located on the second step structure. It should be noted that the first step structure and the second step structure are formed by the misalignment of the ends of the corresponding film layers, and they can have an uneven step surface or a smoothly transitioned inclined surface. The projections of the first glue overflow area 111a and the second glue overflow area 111b are both located within the projection of the first glue receiving groove 211, thereby reducing the possibility that the glue overflowing from the first glue overflow area 111a or the second glue overflow area 111b falls outside the first glue receiving groove 211 and causes the first display screen 12 and the first decorative component 231 to adhere to each other.

[0095] like Figure 14 As shown, the first display screen 12 can be bonded to the first middle frame 221 through the adhesive layer 4 .

[0096] like Figure 15 As shown, during the process of switching the flexible display screen 10 from the unfolded state to the folded state, a corresponding shear force will be generated between the first display screen 12 and the first middle frame 221, causing the first display screen 12 to move relative to the first middle frame 221, that is, the first display screen 12 will be displaced relative to the first decorative member 231, and the displacement amount is a1. At the same time, the first display screen 12 has the above-mentioned multiple film layers, and a displacement will also occur between the top first film layer 10a and the bottom third film layer 10c, and the displacement amount is b1. For the first film layer 10a, its displacement L1 relative to the first decorative member 231 is equal to a1+b1. The length dimension of the opening of the first glue containing groove 211 is D1, and the relationship between D1 and L1 satisfies: D1≥L1. If the length of the opening of the first glue-receiving groove 211 is too small, the glue overflowing from the first display screen 12 cannot be completely contained in the first glue-receiving groove 211, increasing the risk of the glue directly adhering to the first decorative piece 231, which can easily cause abnormal noise problems and thus affect the user experience. If the length of the opening of the first glue-receiving groove 211 is too large, it can easily affect the structural strength of the first decorative piece 231, causing the first decorative piece 231 to be easily deformed or cracked, shortening the service life of the first decorative piece 231. At the same time, it can also easily cause the first curved portion 121 to tilt into the first glue-receiving groove 211, thereby reducing the first decorative piece 231's ability to limit the first display screen 12 and reducing the stability of the first display screen 12. Therefore, the embodiment of the present application limits the opening length of the first glue containing groove 211, which not only ensures the structural strength of the first decorative piece 231, but also helps to improve the limiting effect of the first decorative piece 231 on the first display screen 12. At the same time, the first glue containing groove 211 can reliably contain the glue overflowing from the first display screen 12, thereby reducing the possibility of the glue overflowing from the first display screen 12 adhering to the first decorative piece 231, thereby reducing the possibility of the above-mentioned abnormal noise problem, thereby improving the user experience.

[0097] like Figure 16 As shown, the second display screen 13 has a first straight portion 131, and the second middle frame 222 has a second straight portion 222A. The first straight portion 131 is located on the second straight portion 222A. The second decorative member 232 has a third straight portion 232A, which covers the first straight portion 131 to protect and decorate it. Furthermore, the third straight portion 232A acts as a limiter for the first straight portion 131, reducing the possibility of the first straight portion 131 tilting away from the second straight portion 222A. This improves the stability and reliability of the second display screen 13 on the second middle frame 222.

[0098] The second decorative member 232 further includes a second raised portion 232B. The second raised portion 232B extends in a direction different from that of the third straight portion 232A. The second raised portion 232B can be inserted into the second middle frame 222 and can be glued to the second middle frame 222, thereby achieving a connection between the second decorative member 232 and the second middle frame 222.

[0099] The second decorative member 232 has a second adhesive receiving groove 212 on its surface facing the second display screen 13. Specifically, the second adhesive receiving groove 212 can be provided on the third straight portion 232A. This groove 212 can contain adhesive that overflows from the second display screen 13, thereby reducing the possibility of the adhesive directly contacting the surface of the second decorative member 232 and causing adhesion between the second display screen 13 and the second decorative member 232. This also reduces the possibility of the adhesive being pulled and deformed between the second display screen 13 and the second decorative member 232, thereby improving the user experience.

[0100] The third straight portion 232A has a second outer end 232Aa, and the second glue-containing groove 212 is opened on the inner side of the second outer end 232Aa, that is, on the side away from the outside. The second outer end 232Aa can cover the top of the first straight portion 131 to limit the first straight portion 131 and reduce the possibility of the first straight portion 131 shifting in the direction away from the second straight portion 222A. If the second glue-containing groove 212 is opened on the second outer end 232Aa, the effect of the second outer end 232Aa on the first straight portion 131 is reduced, making it easy for the first straight portion 131 to shift into the second glue-containing groove 212, thereby easily affecting the normal use of the second display screen 13. The embodiment of the present application is conducive to ensuring the limiting effect of the second outer end 232Aa on the second display screen 13 by setting the second glue-containing groove 212 on the inner side of the second outer end 232Aa, thereby improving the stability of the second display screen 13 and enabling the second display screen 13 to be used normally and stably.

[0101] like Figure 16 As shown, in some embodiments, the second adhesive receiving groove 212 can be opened in a direction substantially perpendicular to the inner surface of the third straight portion 232A to reduce the difficulty in processing the second decorative member 232. At the same time, this design allows the second adhesive receiving groove 212 to have a relatively uniform depth, thereby improving the second adhesive receiving groove 212's ability to contain overflowing adhesive, thereby reducing the possibility of adhesive adhering to the second decorative member 232.

[0102] In some other embodiments, the second glue containing groove 212 may also be opened along a direction inclined to the inner surface of the third straight portion 232A, as long as the use requirements of the second glue containing groove 212 can be met.

[0103] In some embodiments, the cross-sectional shape of the second adhesive containing groove 212 can be rectangular, or can be trapezoidal, U-shaped, V-shaped, or other shapes, as long as it can meet the use requirements of the second adhesive containing groove 212.

[0104] In some embodiments, the depth of the second glue containing groove 212 can be 0.05mm to 0.2mm. For example, the depth of the second glue containing groove 212 can be 0.05mm, 0.07mm, 0.09mm, 0.1mm, 0.13mm, 0.15mm, 0.17mm, 0.19mm or 0.2mm, and of course it can also be other values ​​within the above range. The depth of the second glue containing groove 212 is designed to be within the above range so that the second glue containing groove 212 can provide a certain flow space for the colloid overflowing from the second display screen 13, thereby helping to reduce the possibility of adhesion between the colloid and the second decorative part 232. At the same time, it is also beneficial to ensure the structural strength of the second decorative part 232, reduce the possibility of deformation or cracking of the second decorative part 232, and extend the service life of the second decorative part 232.

[0105] The depth of the second adhesive containing groove 212 can be the same as or different from the depth of the first adhesive containing groove 211. The depths of the two grooves can be designed according to actual use requirements.

[0106] like Figure 17 As shown, similar to the first display screen 12, the second display screen 13 also has a glue overflow area 111. When the flexible display screen 10 switches from the unfolded state to the folded state, the glue overflowing from the glue layer 11 of the second display screen 13 can enter the corresponding glue overflow area 111. Along the thickness direction of the second display screen 13, the projection of the glue overflow area 111 is located within the projection of the second glue receiving groove 212. This allows the second glue receiving groove 212 to accurately receive the glue overflowing from the glue overflow area 111 and provide a certain amount of flow space for the glue, thereby reducing the possibility of the glue adhering to the second decorative member 232.

[0107] The glue overflow area 111 includes a third glue overflow area 111c and a fourth glue overflow area 111d. When the flexible display screen 10 switches from the unfolded state to the folded state, the third glue overflow area 111c can be located on the step structure between the first film layer 10a and the second film layer 10b. Similarly, the fourth glue overflow area 111d can be located on the step structure between the second film layer 10b and the third film layer 10c. The projections of the third glue overflow area 111c and the fourth glue overflow area 111d are both located within the projection of the second glue containing groove 212, thereby reducing the possibility that the glue overflowed from the third glue overflow area 111c or the fourth glue overflow area 111d falls outside the second glue containing groove 212, thereby causing the second display screen 13 to be bonded to the second decorative part 232.

[0108] like Figure 18 As shown, the second display screen 13 can be bonded to the second middle frame 222 via the adhesive layer 4 .

[0109] like Figure 19 As shown, when the flexible display 10 switches from the unfolded state to the folded state, a corresponding shear force is generated between the second display 13 and the second middle frame 222, causing the second display 13 to move relative to the second middle frame 222. This displacement is a2 relative to the second decorative element 232. Simultaneously, the second display 13 comprises multiple film layers, with displacement occurring between the topmost first film layer 10a and the bottommost third film layer 10c. This displacement is b2. For the first film layer 10a, the displacement L2 relative to the second decorative element 232 is equal to a2 + b2. The length of the opening of the second adhesive groove 212 is D2, and the relationship between D2 and L2 satisfies: D2 ≥ L2. If the length of the opening of the second adhesive groove 212 is too small, glue overflowing from the second display 13 cannot be fully contained within the second adhesive groove 212, increasing the risk of glue directly adhering to the second decorative element 232. This can cause abnormal noise and affect the user experience. If the length of the opening of the second glue-containing groove 212 is too large, it will easily affect the structural strength of the second decorative piece 232, making the second decorative piece 232 prone to deformation or cracking. At the same time, if the opening size of the second glue-containing groove 212 is too large, it will also reduce the limiting effect of the second decorative piece 232 on the second display screen 13, making the second display screen 13 easily deviate into the second glue-containing groove 212, thereby reducing the stability of the second display screen 13 set on the second middle frame 222.

[0110] Therefore, the embodiment of the present application limits the opening length of the second glue containing groove 212, which not only ensures the structural strength of the second decorative piece 232, but also helps to improve the limiting effect of the second decorative piece 232 on the second display screen 13. At the same time, the second glue containing groove 212 can reliably contain the glue overflowing from the second display screen 13, thereby reducing the possibility of the glue overflowing from the second display screen 13 adhering to the second decorative piece 232.

[0111] The length of the opening of the second adhesive containing groove 212 can be the same as or different from the length of the opening of the first adhesive containing groove 211. The lengths of the openings of the first adhesive containing groove 211 can be designed according to actual use requirements.

[0112] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. An electronic device, characterized in that: include: A flexible display screen, comprising a glue layer; a middle frame assembly, the middle frame assembly being connected to the flexible display screen and configured to drive the flexible display screen to rotate so as to switch the flexible display screen between an unfolded state and a folded state; The middle frame assembly includes a middle frame body and a decorative piece connected to the middle frame body; The flexible display screen is carried by the middle frame body; The decorative piece is located at the edge of the flexible display screen, and the glue containing groove is opened on the surface of the decorative piece facing the flexible display screen. The glue containing groove is used to receive the glue overflowing from the flexible display screen when the flexible display screen switches from the unfolded state to the folded state.

2. The electronic device according to claim 1, wherein The depth direction of the glue containing groove is perpendicular to the plane where the inner surface of the decorative component is located.

3. The electronic device according to claim 1 or 2, characterized in that The decorative element includes a first decorative element and a second decorative element; The first decorative piece and the second decorative piece are respectively located at two ends of the flexible display screen; The glue containing groove is provided on the first decorative piece and / or the second decorative piece.

4. The electronic device according to claim 3, wherein: The middle frame body includes a first middle frame and a second middle frame; The flexible display screen includes a first display screen carried by the first middle frame and a second display screen carried by the second middle frame; The first middle frame and the second middle frame are rotatably connected to drive the first display screen to rotate relative to the second display screen; The first decorative piece is located at one end of the first display screen and is connected to the first middle frame; the second decorative piece is located at one end of the second display screen and is connected to the second middle frame.

5. The electronic device according to claim 4, characterized in that The first display screen has a first curved portion; The first middle frame has a second arc-shaped portion; The first decorative element has a third curved portion; The first arc-shaped portion is located between the second arc-shaped portion and the third arc-shaped portion, and the glue containing groove is opened in the third arc-shaped portion.

6. The electronic device according to claim 5, characterized in that The third arc-shaped portion has a first outer end portion, and the glue containing groove is opened on a side of the first outer end portion away from the outside.

7. The electronic device according to claim 4, wherein: The second display screen has a first flat portion; The second middle frame has a second straight portion; The second decorative element has a third straight portion; The first straight portion is located between the second straight portion and the third straight portion, and the glue containing groove is opened in the third straight portion.

8. The electronic device according to claim 7, wherein: The third straight portion has a second outer end portion, and the glue containing groove is opened on a side of the second outer end portion away from the outside.

9. The electronic device according to claim 1 or 2, characterized in that: The adhesive layer has an adhesive overflow area; When the flexible display screen switches from an unfolded state to a folded state, the colloid overflowing from the adhesive layer can enter the adhesive overflow area; Along the thickness direction of the flexible display screen, the projection of the glue overflow area is located within the projection of the glue containing groove.

10. The electronic device according to claim 9, characterized in that The flexible display screen comprises at least a first film layer, a second film layer and a third film layer; The first film layer and the second film layer are connected by the adhesive layer. When the flexible display is in a folded state, a first step structure is formed between the first film layer and the second film layer, and the adhesive overflow area is located in the first step structure. and / or, The second film layer and the third film layer are connected by the adhesive layer. When the flexible display is in a folded state, a second step structure is formed between the second film layer and the third film layer, and the adhesive overflow area is located in the second step structure.

11. The electronic device according to claim 10, characterized in that The first film layer, the second film layer and the third film layer are sequentially arranged in a direction close to the middle frame body; The relationship between the length of the opening of the adhesive holding groove and the displacement of the first film layer during the state switching process satisfies: D≥L; Wherein, D is the length of the opening of the glue containing groove, and L is the displacement of the first film layer relative to the decorative component during the switching state.

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