Supporting piece, display screen assembly and electronic equipment

Abstract

The utility model provides a supporting piece, a display screen assembly and electronic equipment, the supporting piece is arranged between a display screen and a rotating shaft mechanism, and the supporting piece comprises a bending part supporting part; the bending part comprises a first part, a second part and a third part; when the display screen is in a flattened state, the bending part and the supporting part are distributed in the direction perpendicular to the thickness direction of the supporting piece. When the display screen is in a folded state, the first part and the second part are in a bent state, the bending direction of the first part is different from that of the second part, the third part is in a non-bent state, and the third part is used for connecting the first part and the second part; wherein one side, close to the rotating shaft mechanism, of the third part is provided with a groove body structure, the groove body structure comprises a plurality of grooves, the surface of the groove body structure is provided with a bonding piece, the third part is used for being connected with the rotating shaft mechanism through the bonding piece, the contact area of the bonding piece and the third part is increased, the bonding area is increased, and the degumming risk is reduced.

Description

Technical Field

[0001] 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

[0002] With the continuous development of display technology, foldable display terminals are gradually becoming a development trend of future mobile electronic products. When unfolded, foldable display terminals can obtain a larger display area to improve the viewing effect. When folded, foldable display terminals can obtain a smaller volume, which is convenient for users to carry.

[0003] At present, a teardrop-shaped foldable display terminal is widely used, and its support member includes: a planar support portion and a bending portion, and the bending portion includes: a first portion, a third portion and a second portion. The third portion is arranged between the first portion and the second portion, and the third portion is usually a plane, and can be connected to the hinge mechanism by dispensing glue. When the foldable display terminal is in a folded state, the bending directions of the first portion and the second portion are different, forming a teardrop shape, so that the third portion and the hinge mechanism are pulled against each other, so that the third portion and the hinge mechanism are separated, and the bending reliability is reduced. Utility Model Content

[0004] 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.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In the first aspect of the present application, a support member is provided, which is arranged between a display screen and a hinge mechanism, and the support member includes: a bending portion support member; the bending portion includes: a first part, a second part and a third part; when the display screen is in a flattened 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 part and the second part are in a bent state, and the bending direction of the first part is different from the 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; wherein, a groove structure is provided on one side of the third part close to the hinge mechanism, and the groove structure includes a plurality of grooves, and an adhesive is provided on the surface of the groove structure, and the third part is used to connect with 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 inside the groove and on the outer surface of the groove structure, thereby increasing the contact area between the adhesive and the third part, 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. A 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 high bending life, and can take into account both the bending performance and supporting performance of the folding display terminal.

[0007] In an optional implementation, the adhesive is integrally formed by dispensing glue, thereby the glue can be applied or dripped into the tank structure by dispensing glue, so as to facilitate the molding of the adhesive in the tank structure.

[0008] In an optional implementation, the adhesive member includes: a first adhesive member and a second adhesive member, the first adhesive member is arranged in the groove structure, and the second adhesive member is arranged on the surface of the third part away from the display screen, wherein the first adhesive member is integrally formed by dispensing, and the second adhesive member includes: adhesive backing. Thus, the first adhesive member is formed by dispensing, which reduces the difficulty of forming, and the second adhesive member uses adhesive backing and can be bonded to the surface of the third part away from the display screen, which reduces the difficulty of the process.

[0009] In an optional implementation, the longitudinal cross-sectional shape of the groove includes: T-shaped, dovetail groove-shaped, and trapezoidal. Therefore, the larger the contact area between the adhesive and the groove structure, the more conducive it is to increasing the bonding force of the contact surface. For example, the bonding force of the interface between the dovetail protrusion and the dovetail groove can be slightly greater than the bonding force of the interface between the square protrusion and the square groove. By adjusting the shape of the groove structure, the inner wall area becomes larger, the bonding area is increased, and the risk of debonding is reduced.

[0010] 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 to improving the bending performance of the support member, and at the same time can increase the contact area between the adhesive member and the third part, which is beneficial to increase the bonding area and reduce the risk of debonding.

[0011] In an optional implementation, the groove includes: 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 strip-shaped opening is parallel to the bending axis direction of the support member. Thus, the groove adopts a through groove, which can further increase the contact area between the adhesive member and the third part, which is conducive to increasing the bonding area and reducing the risk of debonding.

[0012] In an optional implementation, the first part is provided with a plurality of through holes. Thus, when the first part is in a bent state, the bending degree of the first part is relatively large, so providing the through holes is beneficial to reducing the bending stress of the first part.

[0013] In an optional implementation, the second part is provided with a plurality of through slots. Thus, when the first part is in a bent state, the curvature of the second part is smaller than that of the first part, and the amount of curvature is relatively small. Providing through slots at a position with a relatively small amount of curvature can take into account both the bending performance and the supporting performance of the foldable display terminal.

[0014] In an optional implementation, the third part includes: a first connection part and a second connection part, and the second connection part and the first connection part are respectively arranged on both sides of the first part. Thus, the third part can play a transition role between the outward (slightly) curved state of the second part and the inward curved state of the first part.

[0015] In an optional implementation, the second portion 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 portion, and the second bending portion is arranged on a side of the second connecting portion away from the first portion. Thus, by arranging the second portion, an ultra-thin and ultra-small folding radius R design can be achieved in a limited space.

[0016] In an optional implementation, the support portion includes: a first support portion and a second support portion, the first support portion is arranged on a side of the first bending portion away from the first connecting portion, and the second support portion is arranged on a side of the second bending portion away from the second connecting portion. Thus, the support portion can improve the supporting performance of the flexible display screen.

[0017] In a second aspect of the present application, a display screen assembly is provided, comprising: a flexible display screen, and the support member as described above, the support member being arranged on a side away from the light-emitting surface of the flexible display screen. Thus, the display screen assembly adopts the support member, which can take into account the bending performance and supporting performance of the foldable display terminal, and is conducive to increasing the bonding area and reducing the risk of debonding.

[0018] 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, thereby improving the bending performance of the display screen assembly.

[0019] The third aspect of the present application provides an electronic device, comprising: a hinge mechanism, and the support member as described above, wherein the hinge mechanism is connected to the third portion via the adhesive member. Thus, the electronic device adopts the support member, which can take into account the bending performance and supporting performance of the foldable display terminal, and is conducive to increasing the bonding area between the hinge mechanism and the third portion of the support member, thereby reducing the risk of debonding.

[0020] In an optional implementation, the electronic device further comprises: a middle frame, the middle frame being connected to the support portion, so that the middle frame can be used to support the support portion of the support member.

[0021] The present application provides a support member, a display screen assembly and an electronic device, wherein the support member is arranged between a display screen and a hinge mechanism, and the support member comprises: a bending portion and a support portion, wherein 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 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 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, and 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 a groove structure is provided on one side of the second portion close to the hinge mechanism, the groove structure comprises a plurality of grooves, and an adhesive is provided on the surface of the groove structure, and the second portion is used to connect with the hinge mechanism through the adhesive. wherein the adhesive is provided on the surface of the groove structure, which means that the adhesive is provided both inside the groove 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. A 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 high bending life, and can take into account both the bending performance and supporting performance of the folding display terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of a foldable display terminal provided in an embodiment of the present application;

[0023] Figure 2 for Figure 1 A schematic diagram of the foldable display terminal shown in FIG. 1 is in a folded state;

[0024] Figure 3 for Figure 1 A schematic diagram of the foldable display terminal shown in the unfolded state;

[0025] Figure 4 A cross-sectional view of a foldable display terminal provided in an embodiment of the present application;

[0026] Figure 5 is a structural schematic diagram of a support member;

[0027] Figure 6 is a cross-sectional view of a display screen assembly in a folded state;

[0028] Figure 7 A schematic diagram of the structure of a support member provided in an embodiment of the present application;

[0029] Figure 8 A cross-sectional view of a display screen assembly in a folded state provided in an embodiment of the present application;

[0030] Fig. 9 A schematic diagram of the structure of an adhesive member provided in an embodiment of the present application;

[0031] Fig.10 A schematic diagram of the structure of another adhesive member provided in an embodiment of the present application;

[0032] Fig.11 A schematic structural diagram of another adhesive member provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] 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 of the embodiments.

[0034] In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0035] In addition, in the present 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 the changes in the orientation of the components in the drawings.

[0036] The embodiment of the present application provides a foldable display terminal, which can be a mobile phone, a display, a tablet computer, a car computer, a watch, an e-reader, a laptop computer, a wearable device, or other electronic device with a foldable function. The embodiment of the present application does not impose any special restrictions on the specific form of the foldable display terminal. Figure 1 The illustrated embodiment is described by taking a foldable mobile phone as an example.

[0037] In order to facilitate understanding of the foldable display terminal provided in the embodiment of the present application, Figure 1 , an existing foldable display terminal is introduced as follows:

[0038] like Figure 1 As shown, 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.

[0039] As a self-luminous display, the AMOLED display screen does not need a backlight module (BLM). Therefore, when the base substrate in the AMOLED display screen is made of a flexible resin material, such as polyethylene terephthalate (PET), the AMOLED display screen can have a bendable property.

[0040] In addition, if Figure 1 As shown, the foldable display terminal 1 further includes a rotating mechanism 20 for carrying the flexible display screen 10 .

[0041] 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 .

[0042] The first middle frame 201 and the second middle frame 202 can be used to carry the flexible display screen 10 , so that the flexible display screen 10 can be kept as flat as possible during use, and the non-display surface of the flexible display screen 10 can be protected.

[0043] A portion of the flexible display screen 10 is fixed to the first middle frame 201 through the glue layer 30, a portion is fixed to the second middle frame 202 through the glue layer 30, and a portion is fixed to the hinge mechanism 203 through the glue layer 30. The glue layer 30 can be a thin film layer formed after coating with glue, and the embodiment of the present application does not limit the specific form of the glue layer 30. In addition, other electronic components, such as cameras, headphones, receivers, buttons, batteries, etc., can also be provided on the first middle frame 201 and the second middle frame 202. The embodiment of the present application does not limit other electronic components provided on the first structural member 2031 and the second structural member 2032.

[0044] 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.

[0045] 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 .

[0046] The hinge mechanism 203 can be connected between the first middle frame and the second middle frame. The foldable display portion 103 of the flexible display screen 10 can be fixed on the hinge mechanism 203. Under the action of the hinge mechanism 203, the first middle frame and the second middle frame can be moved closer to each other or farther away from each other. Accordingly, the first display portion 101 of the flexible display screen 10 and the second display portion 102 of the flexible display screen 10 can be moved closer to each other or farther away from each other, so that the flexible display screen 10 can be folded or unfolded.

[0047] Figure 2 The foldable display terminal 1 is shown 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 oppositely, and the spacing distance between the first middle frame 201 and the second middle frame 202 is the smallest. Similarly, the first display portion 101 and the second display portion 102 can be parallel to each other and arranged oppositely, and the spacing height between the first display portion 101 and the second display portion 102 is the smallest. At this time, the first display portion 101 and the second display portion 102 can be regarded as being arranged on different planes.

[0048] Figure 3 The foldable display terminal 1 is in an unfolded state. In the unfolded state, the angle α between the first middle frame 201 and the second middle frame 202 can be about 180°, and the flexible display screen 10 can be in a state as shown in FIG. Figure 1 Shown in expanded state.

[0049] Figure 4 Shows Figure 1The exploded view of the foldable display terminal 1 is shown. Figure 4 As shown, the foldable display terminal 1 may include a flexible display screen 10 , a support member 40 , a glue layer 30 and a rotating mechanism 20 stacked along the z direction.

[0050] The support member 40 may be, for example, a thin stainless steel material. The support member 40 may be attached to a side away from the light-emitting surface of the flexible display screen, thereby forming a display screen assembly of the foldable display terminal. The support member 40 may be accommodated in a space between the housing of the foldable display terminal and the flexible display screen. The support member 40 may have a certain strength and rigidity, and the bending performance of the support member 40 may be relatively good. The support member 40 may provide a supporting force for the flexible display screen, which is beneficial to ensure the overall flatness of the flexible display screen, thereby ensuring the anti-extrusion performance of the foldable display terminal.

[0051] 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 .

[0052] 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.

[0053] 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 flattened state, the bending portion and the supporting portion are distributed in a direction perpendicular to the thickness direction of the support member.

[0054] The supporting portion includes: a first supporting portion 401 and a second supporting portion 402 ; the bending portion includes: a first portion 403 , a second portion and a third portion; the third portion is arranged between the first portion and the second portion.

[0055] The second part includes: a first bending portion 404 and a second bending portion 405. The third part includes: a first connecting portion 406 and a second connecting portion 407.

[0056] 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.

[0057] The first supporting portion 401 may be connected to the first display portion 101, thereby providing mechanical support for the first display portion 101. The second supporting portion 402 may be connected to the second display portion 102, thereby providing mechanical support for the second display portion 102. The first portion 403 may be correspondingly connected to the foldable display portion 103, thereby providing mechanical support for the foldable display portion 103. The first bending portion 404 may be correspondingly connected to the first transition display portion 104, thereby providing mechanical support for the first transition display portion 104. The second bending portion 405 may be correspondingly connected to the second transition display portion 105, thereby providing mechanical support for the second transition display portion 105.

[0058] In some embodiments, Figure 4 As shown, the rotating shaft mechanism 203 may include, for example, a first structural member 2031, a rotating shaft (not shown in the figure), and a second structural member 2032, which are sequentially arranged along the x direction. The rotating shaft is arranged 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 rotate around the rotating shaft respectively. The first structural member 2031 and the second structural member 2032 may be door panel structures.

[0059] 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 rotating shaft. 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, thereby realizing the opening and closing function of the foldable display terminal 1.

[0060] Accordingly, if Figure 4 , Figure 6 As shown, a third transition display portion 106 may be provided between the first transition display portion 104 and the foldable display portion 103. The first connection portion 406 may be correspondingly attached to the third transition display portion 106, thereby providing mechanical support for the third transition display portion 106.

[0061] 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 connection portion 407 may be correspondingly attached to the fourth transition display portion 107, thereby providing mechanical support for the fourth transition display portion 107.

[0062] like Figure 4 As shown, 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 .

[0063] 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 .

[0064] 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.

[0065] 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 in a flat state. The first support portion 401 being in a flat state can mean that any two different positions of the first support portion 401 can be regarded as being arranged on the same plane.

[0066] like Figure 6 As shown, when the flexible display screen 10 is in a folded state, the foldable display portion 103 can be in a bent state. Accordingly, the first portion 403 can be in a bent state.

[0067] 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 in a flat state. Accordingly, the first support portion 401 and the second support portion 402 can both be in a flat state.

[0068] When the flexible display screen 10 is in the folded state, the first transition display portion 104 and the second transition display portion 105 may both be in a (slightly) curved state (the curvature in the (slightly) curved state may be smaller than the curvature in the folded state), wherein the curvature of the first transition display portion 104 may be smaller than the curvature of the foldable display portion 103, and the curvature of the second transition display portion 105 may be smaller than the curvature of the foldable display portion 103. The first transition display portion 104 may play a transition role between the flat state of the first display portion 101 and the curved state of the foldable display portion 103, and the second transition display portion 105 may play a transition role between the flat state of the second display portion 102 and the curved state of the foldable display portion 103.

[0069] Accordingly, when the flexible display screen 10 is in the folded state, the first bending portion 404 and the second bending portion 405 can both be in a (slightly) bent state, wherein the bending curvature of the first bending portion 404 can be smaller than the bending curvature of the first portion 403, and the bending curvature of the second bending portion 405 can be smaller than the bending curvature of the first portion 403. The first bending portion 404 can play a transitional role between the flat state of the first support portion 401 and the bent state of the first portion 403, and the second bending portion 405 can play a transitional role between the flat state of the second support portion 402 and the bent state of the first portion 403.

[0070] In the embodiment of the present application, by providing the first bending portion 404 and the second bending portion 405 on the support member 40, it is advantageous for the first support portion 401 and the second support portion 402 to fit together relatively closely, that is, the interval 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 folding display terminal 1 in, for example, a pocket or a bag, it is relatively difficult for the tiny components in the pocket or bag to fall into the interval between the first support portion 401 and the second support portion 402, which is beneficial to improving the protection effect of the flexible display screen 10. In addition, the area of ​​the folding display terminal 1 that is relatively far away from the foldable area can have a relatively thin thickness, which lays a foundation for reducing the thickness of the folding display terminal 1.

[0071] 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.

[0072] Accordingly, the first connection portion 406 is in a non-bent state. For example, when the flexible display screen 10 is in a folded state, the first bending portion 404 can be in an outward bending state, and the first portion 403 can be in an inward bending state. The first connection portion 406 can be in a flat state. The first connection portion 406 can play a transitional role between the outward (slightly) bent state of the first bending portion 404 and the inward bent state of the first portion 403.

[0073] When the flexible display screen 10 is in the folded state, the second connection portion 407 is in a non-bent state. For example, when the flexible display screen 10 is in the folded state, the second bending portion 405 can be in an outward bending state, and the first portion 403 can be in an inward bending state. The second connection portion 407 can be in a flat state. The second connection portion 407 can play a transitional role between the outward (slightly) bent state of the second bending portion 405 and the inward bent state of the first portion 403.

[0074] In some embodiments, Figure 5 , Figure 6 As shown, through grooves 4001 may be provided on both the first bending portion 404 and the second bending portion 405 , which is beneficial to improving the bending flexibility of the first bending portion 404 and the second bending portion 405 .

[0075] In some embodiments, reference is then made to Figure 5 , Figure 6 , a through hole 4002 may be provided on the first portion 403 , which is beneficial to improving the bending flexibility of the first portion 403 .

[0076] like Figure 5 , Figure 6 As shown, the support member 40 may include a plurality of through slots 4001 and a plurality of through holes 4002. The through holes 4002 may be provided at the first portion 403 of the support member 40. The through slots 4001 may be provided at the first bending portion 404 and / or the second bending portion 405 of the support member 40. When the first portion 403 is in a bent state, the bending degree of the first portion 403 is relatively large, so providing the through holes 4002 is beneficial to reducing the bending stress of the first portion 403. When the first portion 403 is in a bent state, the first bending portion 404 and the second bending portion 405 have a bending degree that is smaller than that of the first portion 403, and the bending amount is relatively small. By providing the through slots 4001 at a position where the bending amount is relatively small, the bending performance and the supporting performance of the folding display terminal 1 can be taken into account.

[0077] 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.

[0078] Providing different groove structures in multiple regions of the support member 40 is conducive to flexibly adjusting the bending performance and anti-extrusion performance of multiple regions of the support member 40. Figure 5 , Figure 6 As shown, the through slot 4001 may pass through both ends of the support member 40. The through hole 4002 may pass through the thickness direction of the support member 40. The groove depth of the through slot 4001 may be less than the thickness of the support member 40.

[0079] The through groove 4001 and the through hole 4002 can be processed by chemical etching, for example.

[0080] like Figure 4 As shown in , the surfaces of the first connection portion 406 and the second connection portion 407 facing away from the flexible display screen 10 may be, for example, a plane, which may refer to a surface with negligible surface roughness. In other words, the unevenness introduced by the surface roughness may be ignored. Figure 4The bonding force between the first connection part 406 and the first structural member 2031 and the second connection part 407 and the second structural member 2032 mainly depends on the adhesive (such as solder, glue, solid adhesive film, etc.) between two adjacent base parts.

[0081] As mentioned above, the first connection part 406 and the second connection part 407 are planes, and can be connected to the hinge mechanism (first structural member 2031 and second structural member 2032) by glue dispensing. When the foldable display terminal is in a folded state, the bending directions of the first part and the second part are different, forming a water drop shape, so that the third part and the hinge mechanism are pulled against each other, so that the third part and the hinge mechanism are separated, reducing the bending reliability. In addition, in order to ensure the bonding performance, the glue dispensing requires a certain width, and the existing foldable display terminal needs to realize ultra-thin and ultra-small folding radius R design in a limited space, requiring the glue width to be smaller and smaller, and it is easy to debond during the bending process, thereby causing the display module to fail due to bending.

[0082] 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 .

[0083] like Figure 7 As shown, the first connection part 406 and the second connection part 407 may include a slot structure 4003, and the slot structure 4003 includes a plurality of grooves. The groove may be a through slot or a blind slot. A through slot refers to a groove that runs through the support member 40 along the axial direction, and a blind slot refers to a groove that does not run through the support member 40. When the groove is a through slot, the groove includes: a first opening, a second opening and a third opening, wherein 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 strip opening is parallel to the bending axis direction of the support member.

[0084] In some embodiments, the groove of the groove structure 4003 can be obtained by, for example, chemical etching.

[0085] This application is described by taking the groove of the groove structure 4003 as a blind groove as an example.

[0086] like Figure 7 , Figure 8As shown, a groove structure is provided on one side of the first connection part 406 and the second connection part 407 close to the hinge mechanism, and the groove structure 4003 includes a plurality of grooves. When the first part 403 and the second part are in a bent state, the bending stress of the first part 403 and the second part is transmitted to the first connection part 406 and the second connection part 407. The groove structure 4003 is provided on the first connection part 406 and the second connection part 407, so that the bending performance and the supporting performance of the foldable display terminal 1 can be taken into account. By providing the groove structure 4003, it is beneficial to improve the bending performance of the support member 40, so that the support member 40 can provide relatively good supporting performance for the flexible display screen 10 and have a relatively high bending life.

[0087] 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.

[0088] See also Figure 8 The groove structure 4003 is arranged on the surface of the first connecting portion 406 and the second connecting portion 407 away from the flexible display screen 10, and an adhesive is arranged on the surface of the groove structure 4003.

[0089] Among them, the surface of the groove body structure 4003 is provided with an adhesive, which means that the groove of the groove body 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.

[0090] In some embodiments, Figure 8 As shown, the groove structure 4003 of the first connecting portion 406 and the second connecting portion 407 cooperates with the protrusion of the adhesive member 3001. Figure 6 Compared with the first connection part 406 and the second connection part 407 shown, the matching relationship between the protrusion and the groove is conducive to improving the bonding force between the first connection part 406 and the adhesive 3001, and the second connection part 407 and the adhesive 3001.

[0091] In some embodiments, Fig. 9 As shown, 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.

[0092] In some embodiments, Fig.10 As shown, 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.

[0093] In some embodiments, Fig.11 As shown, 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.

[0094] 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.

[0095] 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.

[0096] The adhesive 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 of the interface of the dovetail protrusion and the dovetail groove can be slightly greater than the bonding force of the interface of the square protrusion and the square groove, and the bonding force of the interface of the square protrusion and the square groove can be slightly greater than the bonding force of the interface of the conical protrusion and the conical groove. The present application adjusts the shape of the groove structure 4003 so that its inner wall area becomes larger, increases the bonding area, and reduces the risk of debonding.

[0097] 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.

[0098] 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, so as to form the adhesive 3001 in the groove structure 4003 and the surface of the first connecting part 406 away from the display screen.

[0099] Therefore, the glue liquid can be applied or dripped into the slot structure by dispensing, so as to facilitate the molding of the adhesive part in the groove of the slot structure 4003.

[0100] In other embodiments, Fig. 9 , Fig.10 , Fig.11 As shown, 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 part 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.

[0101] When preparing the adhesive 3001, the glue can be first applied or dripped into the groove of the groove structure 4003 by dispensing, forming the first adhesive 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 3001b, wherein the second adhesive 3001b is connected to the first adhesive 3001a.

[0102] 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 bonded to the surface of the third part away from the display screen, which reduces the difficulty of the process.

[0103] The present application provides a support member, a display screen assembly and an electronic device, wherein the support member is arranged between a display screen and a hinge mechanism, and the support member comprises: a bending portion and a support portion, wherein 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 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 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, and 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 a groove structure is provided on one side of the second portion close to the hinge mechanism, the groove structure comprises a plurality of grooves, and an adhesive is provided on the surface of the groove structure, and the second portion is used to connect with the hinge mechanism through the adhesive. wherein the adhesive is provided on the surface of the groove structure, which means that the adhesive is provided both inside the groove 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. A 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 high bending life, and can take into account both the bending performance and supporting performance of the folding display terminal.

[0104] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application shall be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope 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, and the second adhesive member is arranged on a surface of the third part away from the display screen.

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 4, 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 4, 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 4, 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 4, 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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