Supporting member, display screen assembly and electronic device

Abstract

A supporting member, a display screen assembly and an electronic device. The supporting member (40) is arranged between a display screen (10) and a rotating shaft mechanism (203), and the supporting member (40) comprises a bending portion and a supporting portion; the bending portion comprises a first portion (403), a second portion and a third portion; the second portion comprises a first bending portion (404) and a second bending portion (405), and the third portion comprises a first connecting portion (406) and a second connecting portion (407); when the display screen is in an unfolded state, the bending portion and the supporting portion are distributed in a direction perpendicular to the thickness direction of the supporting member; when the display screen is in a folded state, the first portion (403) and the second portion are in a bent state, the bending direction of the first portion (403) is different from the bending direction of the second portion, the third portion is in a non-bent state, and the third portion is used for connecting the first portion (403) and the second portion; and a groove structure (4003) is arranged on the side of the third portion close to the rotating shaft mechanism (203), the groove structure (4003) comprises a plurality of grooves, the surface of the groove structure (4003) is provided with bonding members (3001), and the third portion is connected to the rotating shaft mechanism (203) by means of the bonding members (3001), thereby increasing the contact area between the bonding members (3001) and the third portion, increasing the bonding area, and reducing the risk of debonding.

Description

Supports, display assemblies, and electronic devices

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 15, 2023, with application number 202323442412.4 and application name “Support, display assembly and electronic device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The embodiments of the present application relate to the field of display technology, and in particular to a support member, a display screen assembly, and an electronic device. Background Art

[0003] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend in future mobile electronic products. When unfolded, foldable display terminals can provide a larger display area, improving the viewing experience. When folded, foldable display terminals can achieve a smaller size, making them easier for users to carry.

[0004] Currently, teardrop-shaped foldable display terminals are widely used. Their support members include a planar support portion and a bending portion. The bending portion comprises a first portion, a third portion, and a second portion. The third portion is positioned between the first and second portions and is typically flat and can be connected to a hinge mechanism via adhesive dispensing. When the foldable display terminal is folded, the first and second portions bend in different directions, forming a teardrop shape. This causes the third portion and the hinge mechanism to pull against each other, causing them to separate and reduce bending reliability.

[0005] Utility Model Content

[0006] The embodiments of the present application provide a support member, a display screen assembly, and an electronic device, which solve the problem of easy separation between the support member and the rotating shaft mechanism.

[0007] To achieve the above objectives, this application adopts the following technical solutions:

[0008] In a first aspect of the present application, a support member is provided, which is arranged between a display screen and a hinge mechanism, and includes: a bending portion support portion; the bending portion includes: a first portion, a second portion, and a third portion; when the display screen is in a flat state, the bending portion and the support portion are distributed in a direction perpendicular to the thickness direction of the support member; when the display screen is in a folded state, the first portion and the second portion are in a bent state, and the bending direction of the first portion is different from the bending direction of the second portion, and the third portion is in a non-bent state, and the third portion is used to connect the first portion and the second portion; wherein, the third portion is provided with a groove structure on a side close to the hinge mechanism, the groove structure includes a plurality of grooves, and the surface of the groove structure is provided with an adhesive, and the third portion is used to connect to the hinge mechanism through the adhesive. wherein, the surface of the groove structure is provided with an adhesive, which means that the adhesive is provided both inside the grooves and on the outer surface of the groove structure, thereby increasing the contact area between the adhesive and the third portion, which is conducive to increasing the bonding area and reducing the risk of debonding. In addition, when the first part and the second part are in a bent state, the bending stress of the first part and the second part is transmitted to the third part. The groove structure is provided on the third part, which is beneficial to improving the bending performance of the support member, so that the support member can provide relatively excellent supporting performance for the flexible display screen and have a relatively long bending life, which can take into account the bending performance and supporting performance of the folding display terminal.

[0009] In an optional implementation, the adhesive is integrally formed by dispensing glue, thereby allowing the glue to be applied or dripped into the tank structure to facilitate forming the adhesive in the tank structure.

[0010] In one optional implementation, the adhesive member includes a first adhesive member and a second adhesive member, the first adhesive member being disposed within the groove structure, and the second adhesive member being disposed on a surface of the third portion remote from the display screen. The first adhesive member is integrally formed by dispensing, and the second adhesive member includes an adhesive backing. Thus, the first adhesive member is formed by dispensing, reducing molding difficulty, while the second adhesive backing can be bonded to the surface of the third portion remote from the display screen, reducing manufacturing difficulty.

[0011] In one optional implementation, the longitudinal cross-sectional shape of the groove includes: T-shaped, dovetail groove-shaped, or trapezoidal. Thus, a larger contact area between the adhesive and the groove structure increases the bonding strength of the contact surface. For example, the bonding strength at the interface of a dovetail-shaped protrusion and a dovetail groove can be slightly greater than the bonding strength at the interface of a square protrusion and a square groove. By adjusting the shape of the groove structure, its inner wall area is increased, thereby increasing the bonding area and reducing the risk of debonding.

[0012] In an optional implementation, the groove includes a through groove or a blind groove. Thus, the groove can be a through groove or a blind groove, which is beneficial for improving the bending performance of the support member and increasing the contact area between the adhesive member and the third part, thereby increasing the bonding area and reducing the risk of debonding.

[0013] In one optional implementation, the groove includes a first opening, a second opening, and a third opening, the first opening and the second opening being respectively provided at opposite ends of the support member, the third opening connecting the first opening and the second opening, and the strip-shaped opening being parallel to the bending axis of the support member. Thus, the groove is a through slot, which further increases the contact area between the adhesive member and the third portion, thereby increasing the bonding area and reducing the risk of debonding.

[0014] In an optional implementation, the first portion is provided with a plurality of through holes. Thus, when the first portion is in a bent state, the bending degree of the first portion is relatively large, and thus providing the through holes is conducive to reducing the bending stress of the first portion.

[0015] In an optional implementation, the second portion is provided with a plurality of through slots. Thus, when the first portion is in a bent state, the curvature of the second portion is smaller than that of the first portion, and the amount of curvature is relatively small. Providing through slots at locations with relatively small curvature can balance the bending performance and support performance of the foldable display terminal.

[0016] In an optional implementation, the third portion includes a first connecting portion and a second connecting portion, the second connecting portion and the first connecting portion being disposed on either side of the first portion, respectively. Thus, the third portion can serve as a transition between the outward (slightly) curved state of the second portion and the inward curved state of the first portion.

[0017] In one optional implementation, the second portion includes a first bend and a second bend, the first bend being located on a side of the first connecting portion away from the first portion, and the second bend being located on a side of the second connecting portion away from the first portion. Thus, by providing the second portion, an ultra-thin design with an ultra-small folding radius R can be achieved within a limited space.

[0018] In one optional implementation, the support portion includes a first support portion and a second support portion, wherein the first support portion is disposed on a side of the first bent portion away from the first connecting portion, and the second support portion is disposed on a side of the second bent portion away from the second connecting portion. Thus, the support portion can improve the support performance of the flexible display.

[0019] A second aspect of the present application provides a display assembly comprising: a flexible display; and the aforementioned support member, disposed on the backlight side of the flexible display. Thus, the display assembly employing the aforementioned support member can achieve both the bending and supporting properties of a foldable display terminal, while also facilitating a larger adhesive surface area and reducing the risk of debonding.

[0020] In an optional implementation, the non-bending area of ​​the display screen is connected to the support portion, and the bending area of ​​the display screen is connected to the first portion, the third portion, and the second portion. Thus, the display screen corresponds to each portion of the support portion, improving the bending performance of the display screen assembly.

[0021] A third aspect of the present application provides an electronic device comprising: a hinge mechanism and the aforementioned support member, wherein the hinge mechanism is connected to the third portion via the adhesive member. Thus, the electronic device employing the aforementioned support member can achieve both the bending and supporting performance of a foldable display terminal, while also facilitating a larger adhesive surface area between the hinge mechanism and the third portion of the support member, thereby reducing the risk of debonding.

[0022] In an optional implementation, the electronic device further includes a middle frame connected to the support portion, so that the middle frame can be used to support the support portion of the support member.

[0023] The present application provides a support member, a display screen assembly, and an electronic device, wherein the support member is disposed between a display screen and a hinge mechanism, the support member comprising: a bending portion and a supporting portion, the bending portion comprising a first portion, a second portion, and a third portion; when the display screen is in a flattened state, the bending portion and the supporting portion are distributed in a direction perpendicular to the thickness direction of the support member; when the display screen is in a folded state, the first portion and the third portion are in a bent state, and the bending direction of the first portion is different from the bending direction of the third portion, the second portion is in a non-bent state, and the second portion is used to connect the first portion and the third portion; wherein the second portion is provided with a groove structure on a side close to the hinge mechanism, the groove structure comprising a plurality of grooves, the surface of the groove structure being provided with an adhesive, and the second portion being used to connect to the hinge mechanism via the adhesive. wherein the surface of the groove structure being provided with an adhesive means that the adhesive is provided both inside the grooves and on the outer surface of the groove structure, thereby increasing the contact area between the adhesive and the third portion, facilitating an increase in the bonding area, and reducing the risk of debonding. In addition, when the first part and the second part are in a bent state, the bending stress of the first part and the second part is transmitted to the third part. The groove structure is provided on the third part, which is beneficial to improving the bending performance of the support member, so that the support member can provide relatively excellent supporting performance for the flexible display screen and have a relatively long bending life, which can take into account the bending performance and supporting performance of the folding display terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a schematic structural diagram of a foldable display terminal provided in an embodiment of the present application;

[0025] FIG2 is a schematic diagram of the foldable display terminal shown in FIG1 in a bent state;

[0026] FIG3 is a schematic diagram of the foldable display terminal shown in FIG1 in an unfolded state;

[0027] FIG4 is a cross-sectional view of a foldable display terminal provided in an embodiment of the present application;

[0028] FIG5 is a schematic structural diagram of a support member;

[0029] FIG6 is a cross-sectional view of a display screen assembly in a folded state;

[0030] FIG7 is a schematic structural diagram of a support member provided in an embodiment of the present application;

[0031] FIG8 is a cross-sectional view of a display screen assembly in a folded state provided by an embodiment of the present application;

[0032] FIG9 is a schematic structural diagram of an adhesive member provided in an embodiment of the present application;

[0033] FIG10 is a schematic structural diagram of another adhesive member provided in an embodiment of the present application;

[0034] FIG11 is a schematic structural diagram of another adhesive member provided in an embodiment of the present application. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0036] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0037] In addition, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they can change accordingly according to changes in the orientation of the components in the drawings.

[0038] The present invention provides a foldable display terminal, which can be a mobile phone, monitor, tablet computer, car computer, watch, e-reader, laptop computer, wearable device, or other electronic device with a foldable function. The present invention does not impose any particular restrictions on the specific form of the foldable display terminal. The embodiment shown in FIG1 is described using a foldable mobile phone as an example.

[0039] To facilitate understanding of the foldable display terminal provided in the embodiment of the present application, an existing foldable display terminal is described below with reference to FIG1 :

[0040] As shown in FIG1 , the foldable display terminal 1 includes a flexible display screen 10. The flexible display screen 10 may be an active matrix organic light emitting diode (AMOLED) display screen.

[0041] AMOLED displays are self-luminous and do not require a backlight module (BLM). Therefore, when the base substrate of an AMOLED display is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display can be bendable.

[0042] In addition, as shown in FIG. 1 , the foldable display terminal 1 further includes a rotating mechanism 20 for carrying the flexible display screen 10 .

[0043] The rotating mechanism 20 includes a first middle frame 201 , a second middle frame 202 , and a rotating shaft mechanism 203 disposed between the first middle frame 201 and the second middle frame 202 .

[0044] The first middle frame 201 and the second middle frame 202 can be used to support the flexible display screen 10 , so that the flexible display screen 10 remains as flat as possible during use, and the non-display surface of the flexible display screen 10 is protected.

[0045] The flexible display 10 is partially secured to the first middle frame 201 via an adhesive layer 30, partially secured to the second middle frame 202 via an adhesive layer 30, and partially secured to the hinge mechanism 203 via an adhesive layer 30. The adhesive layer 30 may be a thin film formed by coating with glue, and the specific form of the adhesive layer 30 is not limited in this embodiment of the application. Furthermore, other electronic components, such as cameras, headphones, receivers, buttons, batteries, etc., may also be provided on the first and second middle frames 201, 202. This embodiment of the application does not limit the other electronic components provided on the first and second structural members 2031, 2032.

[0046] In some embodiments, the flexible display screen 10 may include a first display portion 101 corresponding to the first middle frame 201, a second display portion 102 corresponding to the second middle frame 202, and a foldable display portion 103 corresponding to the hinge mechanism 203. The foldable display portion 103 may be connected between the first display portion 101 and the second display portion 102.

[0047] The first display portion 101 may be connected to the first middle frame 201 , and the second display portion 102 may be connected to the second middle frame 202 .

[0048] The hinge mechanism 203 can be connected between the first and second middle frames. The foldable display portion 103 of the flexible display 10 can be fixed to the hinge mechanism 203. The hinge mechanism 203 allows the first and second middle frames to move closer or further away from each other. Accordingly, the first display portion 101 and the second display portion 102 of the flexible display 10 can move closer or further away from each other, allowing the flexible display 10 to be folded or unfolded.

[0049] The foldable display terminal 1 shown in Figure 2 is in a folded state. In the folded state, the first middle frame 201 and the second middle frame 202 can be parallel to each other and arranged opposite each other, with the distance between the first middle frame 201 and the second middle frame 202 being minimized. Similarly, the first display portion 101 and the second display portion 102 can be parallel to each other and arranged opposite each other, with the height of the distance between the first display portion 101 and the second display portion 102 being minimized. In this case, the first display portion 101 and the second display portion 102 can be considered to be arranged on different planes.

[0050] The foldable display terminal 1 shown in FIG3 is in the unfolded state. In the unfolded state, the angle α between the first middle frame 201 and the second middle frame 202 can be approximately 180°, and the flexible display screen 10 can be in the unfolded state as shown in FIG1 .

[0051] Figure 4 shows an exploded view of the foldable display terminal 1 shown in Figure 1. As shown in Figure 4, the foldable display terminal 1 may include a flexible display screen 10, a support member 40, an adhesive layer 30, and a rotating mechanism 20 stacked along the z direction.

[0052] The support member 40 may be, for example, a thin stainless steel sheet. The support member 40 may be attached to the flexible display, thereby forming the display assembly of the foldable display terminal. The support member 40 may be accommodated in the space between the housing of the foldable display terminal and the flexible display. The support member 40 may have a certain strength and rigidity, and may have relatively good bending properties. The support member 40 may provide support for the flexible display, thereby ensuring the overall flatness of the flexible display and, in turn, the compressive resistance of the foldable display terminal.

[0053] The rotating mechanism 20 includes a first middle frame 201 , a rotating shaft mechanism 203 , and a second middle frame 202 , which are sequentially arranged along the x direction. The rotating shaft mechanism 203 is arranged between the first middle frame 201 and the second middle frame 202 .

[0054] The flexible display screen 10 may include a first display portion 101, a first transition display portion 104, a foldable display portion 103, a second transition display portion 105, and a second display portion 102, which are sequentially connected along the x-direction. The first transition display portion 104 may be connected between the first display portion 101 and the foldable display portion 103, and the second transition display portion 105 may be connected between the second display portion 102 and the foldable display portion 103.

[0055] In some embodiments, the support member 40 may include a supporting portion and a bending portion connected in sequence. When the display screen is in a flat state, the bending portion and the supporting portion are distributed in a direction perpendicular to the thickness direction of the support member.

[0056] The supporting portion includes: a first supporting portion 401 and a second supporting portion 402 ; the bending portion includes: a first part 403 , a second part and a third part; the third part is arranged between the first part and the second part.

[0057] The second portion includes a first bending portion 404 and a second bending portion 405 , and the third portion includes a first connecting portion 406 and a second connecting portion 407 .

[0058] The first supporting portion 401 , the first bending portion 404 , the first connecting portion 406 , the first part 403 , the second connecting portion 407 , the second bending portion 405 , and the second supporting portion 402 are connected in sequence.

[0059] The first support portion 401 can be connected to the first display portion 101, thereby providing mechanical support for the first display portion 101. The second support portion 402 can be connected to the second display portion 102, thereby providing mechanical support for the second display portion 102. The first portion 403 can be connected to the foldable display portion 103, thereby providing mechanical support for the foldable display portion 103. The first bending portion 404 can be connected to the first transitional display portion 104, thereby providing mechanical support for the first transitional display portion 104. The second bending portion 405 can be connected to the second transitional display portion 105, thereby providing mechanical support for the second transitional display portion 105.

[0060] In some embodiments, as shown in FIG4 , the rotating shaft mechanism 203 may include, for example, a first structural member 2031, a rotating shaft (not shown), and a second structural member 2032, which are sequentially arranged along the x-direction. The rotating shaft is disposed between the first structural member 2031 and the second structural member 2032. The first structural member 2031 and the second structural member 2032 are both connected to the rotating shaft, and the first structural member 2031 and the second structural member 2032 can respectively rotate about the rotating shaft. The first structural member 2031 and the second structural member 2032 may be door panel structures.

[0061] The first structural member 2031 can also be connected to the first middle frame 201, and the second structural member 2032 can also be connected to the second middle frame 202. The first structural member 2031 and the second structural member 2032 can rotate relative to the rotation axis. The mutual movement of the first structural member 2031 and the second structural member 2032 can drive the mutual movement of the first middle frame 201 and the second middle frame 202, realizing the opening and closing function of the foldable display terminal 1.

[0062] 4 and 6 , a third transition display portion 106 may be provided between the first transition display portion 104 and the foldable display portion 103. The first connecting portion 406 may be attached to the third transition display portion 106 to provide mechanical support for the third transition display portion 106.

[0063] A fourth transition display portion 107 may be further provided between the second transition display portion 105 and the foldable display portion 103. The second connecting portion 407 may be correspondingly adhered to the fourth transition display portion 107, thereby providing mechanical support for the fourth transition display portion 107.

[0064] As shown in FIG. 4 , the first support portion 401 is connected to the first middle frame 201 through the first adhesive layer 301 , and the second support portion 402 is connected to the second middle frame 202 through the second adhesive layer 302 .

[0065] Similarly, the first connection portion 406 may be connected to the first structural member 2031 via the third adhesive layer 303 , and the second connection portion 407 may be connected to the second structural member 2032 via the fourth adhesive layer 304 .

[0066] In one example, when the flexible display screen 10 is in the unfolded state, the first display portion 101 , the first transition display portion 104 , the foldable display portion 103 , the second transition display portion 105 , and the second display portion 102 may all be in a flat state.

[0067] Accordingly, when the flexible display screen 10 is in the unfolded state, the support member 40 can be in the unfolded state, and the first support portion 401, the first bent portion 404, the first portion 403, the second bent portion 405, and the second support portion 402 can all be flat. The first support portion 401 being flat can mean that any two different positions of the first support portion 401 can be considered to be arranged on the same plane.

[0068] As shown in FIG6 , when the flexible display screen 10 is in the folded state, the foldable display portion 103 can be in a bent state. Accordingly, the first portion 403 can be in a bent state.

[0069] When the flexible display screen 10 is in the folded state, the first display portion 101 and the second display portion 102 can both be flat. Accordingly, the first support portion 401 and the second support portion 402 can both be flat.

[0070] When the flexible display screen 10 is in the folded state, the first transitional display portion 104 and the second transitional display portion 105 can both be in a (slightly) curved state (the curvature in the (slightly) curved state can be smaller than the curvature in the folded state). The curvature of the first transitional display portion 104 can be smaller than that of the foldable display portion 103, and the curvature of the second transitional display portion 105 can be smaller than that of the foldable display portion 103. The first transitional display portion 104 can serve as a transition between the flat state of the first display portion 101 and the curved state of the foldable display portion 103, and the second transitional display portion 105 can serve as a transition between the flat state of the second display portion 102 and the curved state of the foldable display portion 103.

[0071] Accordingly, when the flexible display 10 is in the folded state, the first bent portion 404 and the second bent portion 405 can both be in a (slightly) curved state, wherein the curvature of the first bent portion 404 can be smaller than the curvature of the first portion 403, and the curvature of the second bent portion 405 can be smaller than the curvature of the first portion 403. The first bent portion 404 can serve as a transition between the flat state of the first support portion 401 and the curved state of the first portion 403, and the second bent portion 405 can serve as a transition between the flat state of the second support portion 402 and the curved state of the first portion 403.

[0072] In the embodiment of the present application, by providing a first bending portion 404 and a second bending portion 405 on the support member 40, the first support portion 401 and the second support portion 402 can be relatively tightly fitted together. In other words, the spacing between the first support portion 401 and the second support portion 402 is relatively small. For example, the second support portion 402 and the first support portion 401 can be arranged parallel to each other. When the user places the foldable display terminal 1 in, for example, a pocket or bag, it is relatively difficult for small components in the pocket or bag to fall into the spacing between the first support portion 401 and the second support portion 402, which is beneficial for improving the protection effect of the flexible display screen 10. In addition, the area of ​​the foldable display terminal 1 that is relatively far away from the foldable area can have a relatively thin thickness, laying the foundation for reducing the thickness of the foldable display terminal 1.

[0073] When the flexible display screen 10 is in the folded state, the third transition display portion 106 and the fourth transition display portion 107 are in the non-bent state.

[0074] Accordingly, the first connecting portion 406 is in a non-bent state. For example, when the flexible display 10 is in a folded state, the first bending portion 404 can be in an outwardly curved state, and the first portion 403 can be in an inwardly curved state. The first connecting portion 406 can be flat. The first connecting portion 406 can serve as a transition between the outward (slightly) curved state of the first bending portion 404 and the inwardly curved state of the first portion 403.

[0075] When the flexible display 10 is folded, the second connecting portion 407 is in a non-bent state. For example, when the flexible display 10 is folded, the second bending portion 405 can be in an outwardly curved state, and the first portion 403 can be in an inwardly curved state. The second connecting portion 407 can be flat. The second connecting portion 407 can serve as a transition between the outward (slightly) curved state of the second bending portion 405 and the inwardly curved state of the first portion 403.

[0076] In some embodiments, as shown in FIG. 5 and FIG. 6 , through grooves 4001 may be provided in both the first bending portion 404 and the second bending portion 405 , which is beneficial for improving the bending flexibility of the first bending portion 404 and the second bending portion 405 .

[0077] In some embodiments, referring to FIG. 5 and FIG. 6 , a through hole 4002 may be provided on the first portion 403 , which helps to improve the bending flexibility of the first portion 403 .

[0078] As shown in Figures 5 and 6, the support member 40 may include multiple through slots 4001 and multiple through holes 4002. The through holes 4002 may be provided in the first portion 403 of the support member 40. The through slots 4001 may be provided in the first bend 404 and / or the second bend 405 of the support member 40. When the first portion 403 is bent, the first portion 403 has a relatively large degree of curvature. Therefore, providing the through holes 4002 helps reduce the bending stress of the first portion 403. When the first portion 403 is bent, the curvature of the first bend 404 and the second bend 405 is less than that of the first portion 403, and the amount of curvature is relatively small. Providing the through slots 4001 in locations with relatively small curvature can ensure a balanced balance between the bending performance and support performance of the foldable display terminal 1.

[0079] Among them, the first part 403 is in a bent state, which may mean that the first part 403 is folded, the first support part 401 and the second support part 402 are parallel to each other, spaced apart from each other, and arranged face to face, and the spacing distance between the first support part 401 and the second support part 402 is minimized.

[0080] Providing different groove structures in multiple regions of the support member 40 facilitates flexible adjustment of the bending and extrusion resistance of the support member 40. As shown in Figures 5 and 6, the through groove 4001 can pass through both ends of the support member 40. The through hole 4002 can pass through the thickness of the support member 40. The depth of the through groove 4001 can be less than the thickness of the support member 40.

[0081] The through groove 4001 and the through hole 4002 can be processed by chemical etching, for example.

[0082] As shown in FIG4 , the surfaces of the first connecting portion 406 and the second connecting portion 407 facing away from the flexible display 10 can be, for example, flat surfaces, where surface roughness is negligible. In other words, the unevenness introduced by surface roughness can be ignored. The bonding strength between the first connecting portion 406 and the first structural member 2031, and between the second connecting portion 407 and the second structural member 2032 in FIG4 , primarily relies on the adhesive (e.g., solder, glue, solid adhesive film, etc.) between the two adjacent base portions.

[0083] As described above, the first connecting portion 406 and the second connecting portion 407 are flat surfaces that can be connected to the hinge mechanism (first structural member 2031 and second structural member 2032) via adhesive dispensing. When the foldable display terminal is folded, the first and second portions bend in different directions, forming a teardrop shape. This causes the third portion and the hinge mechanism to pull against each other, causing them to separate and reduce bending reliability. Furthermore, to ensure bonding performance, adhesive dispensing requires a certain width. However, existing foldable display terminals require an ultra-thin design with an ultra-small folding radius R within a limited space, requiring increasingly smaller adhesive widths. This makes debonding more likely during the bending process, potentially leading to bending failure of the display module.

[0084] In order to improve the connection stability between the first connection portion 406 and the first structural member 2031 , and between the second connection portion 407 and the second structural member 2032 , the embodiment of the present application further provides an improved support member 40 .

[0085] As shown in Figure 7, the first connecting portion 406 and the second connecting portion 407 may include a groove structure 4003, and the groove structure 4003 includes a plurality of grooves. The groove may be a through groove or a blind groove. A through groove refers to a groove that passes through the support member 40 along the axial direction, and a blind groove refers to a groove that does not pass through the support member 40. When the groove is a through groove, the groove includes: a first opening, a second opening and a third opening, the first opening and the second opening are respectively arranged at both ends of the support member, the third opening connects the first opening and the second opening, and the strip opening is parallel to the bending axis direction of the support member.

[0086] In some embodiments, the groove of the groove structure 4003 can be obtained by, for example, chemical etching.

[0087] This application is described by taking the groove of the groove structure 4003 as a blind groove as an example.

[0088] As shown in Figures 7 and 8, a groove structure 4003 is provided on the side of the first and second connecting portions 406 and 407 near the hinge mechanism. The groove structure 4003 includes multiple grooves. When the first and second portions 403 and 407 are bent, the bending stress of the first and second portions 403 and 407 is transmitted to the first and second connecting portions 406 and 407. The provision of the groove structure 4003 on the first and second connecting portions 406 and 407 balances the bending and support performance of the foldable display terminal 1. The provision of the groove structure 4003 improves the bending performance of the support member 40, enabling the support member 40 to provide relatively good support for the flexible display 10 while also having a relatively long bending life.

[0089] Among them, the first part 403 is in a bent state, which may mean that the first part 403 is folded, the first support part 401 and the second support part 402 are parallel to each other, spaced apart from each other, and arranged face to face, and the spacing distance between the first support part 401 and the second support part 402 is minimized.

[0090] 8 , the groove structure 4003 is disposed on the surface of the first connection portion 406 and the second connection portion 407 away from the flexible display screen 10 , and an adhesive is disposed on the surface of the groove structure 4003 .

[0091] Among them, the surface of the groove structure 4003 is provided with an adhesive, which means that the groove of the groove structure 4003 and the surfaces of the first connecting part 406 and the second connecting part 407 away from the display screen are both provided with an adhesive 3001, the first connecting part 406 is used to connect to the first structural part through the adhesive 3001, and the second connecting part 407 is used to connect to the second structural part through the adhesive 3001.

[0092] In some embodiments, as shown in FIG8 , the groove structures 4003 of the first connecting portion 406 and the second connecting portion 407 cooperate with the protrusions of the adhesive member 3001. Compared to the first connecting portion 406 and the second connecting portion 407 shown in FIG6 , the cooperation between the protrusions and the grooves helps to improve the bonding strength between the first connecting portion 406 and the adhesive member 3001, and between the second connecting portion 407 and the adhesive member 3001.

[0093] In some embodiments, as shown in FIG. 9 , the protrusion formed by the adhesive member 3001 may be a square protrusion, and correspondingly, the groove of the groove structure 4003 may be a square groove.

[0094] In some embodiments, as shown in FIG. 10 , the protrusion formed by the adhesive member 3001 may be a trapezoidal protrusion, and correspondingly, the groove of the groove structure 4003 may be a trapezoidal groove.

[0095] In some embodiments, as shown in FIG. 11 , the protrusion formed by the adhesive member 3001 may be a dovetail-shaped protrusion, and correspondingly, the groove of the groove structure 4003 may be a dovetail-shaped groove.

[0096] In some embodiments, the protrusion formed by the adhesive 3001 may be a conical protrusion, and correspondingly, the groove of the groove structure 4003 may be a conical groove.

[0097] In some embodiments, the protrusion formed by the adhesive 3001 may be an arc-shaped protrusion, and correspondingly, the groove of the groove structure 4003 may be an arc-shaped groove.

[0098] The adhesive member 3001 provided in the embodiment of the present application matches the groove of the groove structure 4003, wherein the larger the contact area between the protrusion and the groove, the more conducive it is to increasing the bonding force of the contact surface. For example, the bonding force at the interface of a dovetail-shaped protrusion and a dovetail-shaped groove can be slightly greater than the bonding force at the interface of a square protrusion and a square groove, and the bonding force at the interface of a square protrusion and a square groove can be slightly greater than the bonding force at the interface of a tapered protrusion and a tapered groove. By adjusting the shape of the groove structure 4003, the present application increases its inner wall area, thereby increasing the bonding area and reducing the risk of debonding.

[0099] The embodiment of the present application does not limit the molding method of the adhesive member 3001. In some embodiments, the adhesive member 3001 can be integrally molded by dispensing.

[0100] When preparing the adhesive 3001, the glue can be applied or dripped into the groove structure 4003 and the surface of the first connecting part 406 away from the display screen by dispensing, thereby forming the adhesive 3001 in the groove structure 4003 and the surface of the first connecting part 406 away from the display screen.

[0101] Therefore, the glue liquid can be applied or dripped into the groove structure by dispensing, so as to facilitate the formation of the adhesive part in the groove of the groove structure 4003.

[0102] In other embodiments, as shown in Figures 9, 10, and 11, the adhesive component 3001 includes: a first adhesive component 3001a and a second adhesive component 3001b, the first adhesive component 3001a is arranged in the groove of the groove structure 4003, and the second adhesive component 3001b is arranged on the surface of the first connecting portion 406 away from the display screen, wherein the first adhesive component 3001a is integrally formed by dispensing, and the second adhesive component 3001b includes: back glue.

[0103] When preparing the adhesive component 3001, the glue can be first applied or dripped into the groove of the groove structure 4003 by dispensing, forming a first adhesive component 3001a in the groove of the groove structure 4003, and then the backing glue is adhered to the surface of the first connecting part 406 away from the display screen as the second adhesive component 3001b, wherein the second adhesive component 3001b is connected to the first adhesive component 3001a.

[0104] Thus, the first adhesive component is formed by dispensing glue, which reduces the difficulty of forming. The second adhesive component uses adhesive backing and can be adhered to the surface of the third part away from the display screen, which reduces the difficulty of the process.

[0105] The present application provides a support member, a display screen assembly, and an electronic device, wherein the support member is disposed between a display screen and a hinge mechanism, the support member comprising: a bending portion and a supporting portion, the bending portion comprising a first portion, a second portion, and a third portion; when the display screen is in a flattened state, the bending portion and the supporting portion are distributed in a direction perpendicular to the thickness direction of the support member; when the display screen is in a folded state, the first portion and the third portion are in a bent state, and the bending direction of the first portion is different from the bending direction of the third portion, the second portion is in a non-bent state, and the second portion is used to connect the first portion and the third portion; wherein the second portion is provided with a groove structure on a side close to the hinge mechanism, the groove structure comprising a plurality of grooves, the surface of the groove structure being provided with an adhesive, and the second portion being used to connect to the hinge mechanism via the adhesive. wherein the surface of the groove structure being provided with an adhesive means that the adhesive is provided both inside the grooves and on the outer surface of the groove structure, thereby increasing the contact area between the adhesive and the third portion, facilitating an increase in the bonding area, and reducing the risk of debonding. In addition, when the first part and the second part are in a bent state, the bending stress of the first part and the second part is transmitted to the third part. The groove structure is provided on the third part, which is beneficial to improving the bending performance of the support member, so that the support member can provide relatively excellent supporting performance for the flexible display screen and have a relatively long bending life, which can take into account the bending performance and supporting performance of the folding display terminal.

[0106] The above is only a specific embodiment of the present application, but the scope of protection of this application is not limited to this. Any changes or substitutions within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A support member, characterized in that: The support member is arranged between the display screen and the rotating shaft mechanism, and the support member comprises: a bending portion and a supporting portion; the bending portion comprises a first portion, a second portion and a third portion; When the display screen is in a flattened state, the bending portion and the supporting portion are distributed along a direction perpendicular to a thickness direction of the supporting member; When the display screen is in a folded state, the first part and the second part are in a bent state, and a bending direction of the first part is different from a bending direction of the second part, and the third part is in a non-bent state, and the third part is used to connect the first part and the second part; Among them, a groove structure is provided on the side of the third part close to the rotating shaft mechanism, the groove structure includes a plurality of grooves, an adhesive is provided on the surface of the groove structure, and the third part is used to be connected to the rotating shaft mechanism through the adhesive.

2. The support member according to claim 1, characterized in that The adhesive component is integrally formed by glue dispensing.

3. The support member according to claim 1, characterized in that: The adhesive member includes: a first adhesive member and a second adhesive member connected to each other, the first adhesive member is arranged in the groove, the second adhesive member is arranged on the surface of the third part away from the display screen, and the cross-sectional dimension of the second adhesive member is larger than the cross-sectional dimension of the first adhesive member.

4. The support member according to claim 3, characterized in that: The first adhesive component is integrally formed by dispensing glue, and the second adhesive component includes: back glue.

5. The support member according to any one of claims 1 to 4, characterized in that: The longitudinal cross-sectional shapes of the groove include: T-shaped, dovetail groove-shaped, and trapezoidal.

6. The support member according to any one of claims 1 to 5, characterized in that: The groove is any one of a through groove and a blind groove.

7. The support member according to any one of claims 1 to 6, characterized in that: The first part is provided with a plurality of through holes.

8. The support member according to any one of claims 1 to 7, characterized in that: The second part is provided with a plurality of through slots, and the through slots include: a first opening, a second opening and a third opening, the first opening and the second opening are respectively arranged at two ends of the support member, the third opening connects the first opening and the second opening, and the third opening is parallel to the bending axis direction of the support member.

9. The support member according to any one of claims 1 to 8, characterized in that: The third part includes: a first connecting portion and a second connecting portion, wherein the second connecting portion and the first connecting portion are respectively arranged on both sides of the first part.

10. The support member according to claim 9, characterized in that The second part includes: a first bending portion and a second bending portion, the first bending portion is arranged on a side of the first connecting portion away from the first part, and the second bending portion is arranged on a side of the second connecting portion away from the first part.

11. The support member according to claim 10, characterized in that The support portion includes: a first support portion and a second support portion, wherein the first support portion is disposed on a side of the first bending portion away from the first connecting portion, and the second support portion is disposed on a side of the second bending portion away from the second connecting portion.

12. A display screen assembly, characterized in that: include: A flexible display screen, and a supporting member as claimed in any one of claims 1 to 11, wherein the supporting member is arranged on a side away from a light-emitting surface of the flexible display screen.

13. The display screen assembly according to claim 12, characterized in that: The non-bending area of ​​the display screen is connected to the supporting part; The bending area of ​​the display screen is connected to the first part, the third part and the second part.

14. An electronic device, characterized in that: include: A display screen, a hinge mechanism, and a support member as described in any one of claims 1 to 11, wherein the support member is arranged between the display screen and the hinge mechanism, and the hinge mechanism is connected to the third part through the adhesive member.

15. The electronic device according to claim 14, characterized in that: The electronic device further comprises: a middle frame, and the middle frame is connected to the supporting part.

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