Electronic equipment, display module and rotating shaft mechanism

Abstract

The utility model provides electronic equipment, a display module and a rotating shaft mechanism, the electronic equipment can be a drop-shaped folding display terminal, and the electronic equipment comprises a display screen, a supporting piece, an adhesive layer and the rotating shaft mechanism; the supporting piece is arranged on the side away from the light-emitting face of the flexible display screen, the rotating shaft mechanism is arranged on the side, away from the display screen, of the supporting piece, and the rotating shaft mechanism is connected with the supporting piece through the adhesive layer. A coating is arranged in the area where the surface of the supporting piece is connected with the adhesive layer and / or the area where the surface of the rotating shaft mechanism is connected with the adhesive layer. Wherein the adhesive force between the supporting piece and / or the rotating shaft mechanism and the coating is larger than the adhesive force between the supporting piece and / or the rotating shaft mechanism and the adhesive layer, by arranging the coating, the bonding effect can be improved, and the problem that when the display screen is in a bent state, due to the fact that the adhesive force between the supporting piece and / or the rotating shaft mechanism and the adhesive layer is insufficient, the display screen cannot be bent is solved. Therefore, the problem that the supporting piece and / or the rotating shaft mechanism is separated from the adhesive layer and is debonded is solved, and the reliability of the display module is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to an electronic device, a display module, and a hinge mechanism. 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 rotating shaft mechanism through an adhesive layer. 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.

[0004] For foldable screen mobile phones, graphite can be set on the support for heat dissipation. The width of the graphite will directly affect the width of the glue layer of the display module. When the width of the glue layer is reduced, there will be a risk of bending and debonding. Therefore, it is necessary to improve the connection stability between the support and the hinge mechanism to meet the requirements of the bonding reliability of the foldable screen display module under the conditions of limited bonding area. Utility Model Content

[0005] The embodiments of the present application provide an electronic device, a display module and a hinge mechanism, which solve the problem of easy separation between a support member and the hinge mechanism.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In the first aspect of the present application, an electronic device is provided, comprising: a display screen, a support, an adhesive layer and a hinge mechanism; the support is arranged on a side away from the light-emitting surface of the flexible display screen, the hinge mechanism is arranged on a side of the support away from the display screen, a first area of ​​the surface of the support away from the light-emitting surface of the flexible display screen is connected through the adhesive layer and a second area of ​​the surface of the hinge mechanism, the first area is provided with a coating, and / or the second area is provided with a coating. Wherein, the adhesion between the support and / or the hinge mechanism and the coating is greater than the adhesion between the support and / or the hinge mechanism and the adhesive layer, and by providing the coating, the bonding effect can be improved, and the problem of separation and debonding of the support and / or the hinge mechanism from the adhesive layer due to insufficient adhesion between the support and / or the hinge mechanism and the adhesive layer when the display screen is in a bent state is solved, and coating the surface of the support and / or the hinge mechanism can increase the adhesion without destroying the structure of the support and / or the hinge mechanism, thereby ensuring the reliability of the display module.

[0008] In an optional implementation, the coating material includes: multi-component epoxy ink and ink molecular chain. Thus, the coating material and the adhesive layer undergo similar compatibility reactions, thereby improving bonding reliability.

[0009] In an optional implementation, the coating is formed by applying or spraying and then curing. Thus, the coating is easy to form and the process difficulty is reduced.

[0010] In an optional implementation, the support member includes: metal micropores, and the coating is arranged in the metal micropores. Thus, the coating can penetrate into the metal micropores, increasing the contact area between the coating and the support member and improving the adhesion between the coating and the support member.

[0011] In an optional implementation, the shaft mechanism includes: metal micropores, and the coating is arranged in the metal micropores. Thus, the coating can penetrate into the metal micropores, increasing the contact area between the coating and the shaft mechanism and improving the adhesion between the coating and the shaft mechanism.

[0012] In an optional implementation, the adhesive layer includes: back adhesive, UV curing adhesive, foam adhesive, double-sided adhesive, OCA optical adhesive. Thus, the adhesive layer can be bonded to the surface of the support member or the shaft mechanism, reducing the process difficulty.

[0013] In an optional implementation, the glue layer is formed by dispensing glue, thereby reducing the difficulty of forming.

[0014] In an optional implementation, the electronic device also includes: a middle frame, which is arranged on a side of the support member away from the display screen; a third area of ​​the surface of the support member facing away from the light-emitting surface of the flexible display screen is connected to a fourth area of ​​the surface of the middle frame through an adhesive layer, the third area is provided with a coating, and / or the fourth area is provided with the coating.

[0015] In an optional implementation, the support member includes: a bending portion and a supporting portion; 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 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 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, the third part is in a non-bent state, and the third part is used to connect the first part and the second part; the third part is used to connect with the hinge mechanism through the adhesive layer. Thus, the electronic device is a water drop-shaped folding display terminal. When the folding 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. The folding display terminal of this structure occupies less space in the folded state, which is conducive to the miniaturization of the device, and can achieve an ultra-thin and ultra-small folding radius R design in a limited space.

[0016] In an optional implementation, the projection of the coating on the display screen at least partially overlaps with the projection of the adhesive layer on the display screen. Thus, the coating can fully or partially cover the adhesive layer area, improving the connection stability between the support layer and the rotating shaft mechanism.

[0017] In an optional implementation, the hinge mechanism includes: a first hinge mechanism, a second hinge mechanism and a hinge, the hinge is arranged between the first hinge mechanism and the second hinge mechanism, and the first hinge mechanism and the second hinge mechanism are connected through the adhesive layer and the support member, respectively. Thus, the hinge mechanism corresponds to each part of the support portion, thereby improving the bending performance of the display assembly.

[0018] In a second aspect of the present application, a display module is provided, which is connected to a hinge mechanism, and includes: a display screen and a support member; the support member is arranged on a side away from the light-emitting surface of the flexible display screen, and a first area of ​​the surface of the support member away from the light-emitting surface of the flexible display screen is provided with a coating, and the first area of ​​the support member is connected to the hinge mechanism through an adhesive layer.

[0019] In an optional implementation, the material of the coating includes: multi-component epoxy ink and ink molecular chain.

[0020] In an optional implementation, the coating is formed by painting or spraying.

[0021] In an optional implementation, the support member includes: metal micropores, and the coating is arranged in the metal micropores.

[0022] According to a third aspect of the present application, a hinge mechanism is provided, wherein a first area on a surface of the hinge mechanism is provided with a coating, and the first area of ​​the hinge mechanism is connected to a display module via an adhesive layer.

[0023] In an optional implementation, the material of the coating includes: multi-component epoxy ink and ink molecular chain.

[0024] In an optional implementation, the coating is formed by painting or spraying.

[0025] In an optional implementation, the rotating shaft mechanism includes: a metal micropore, and the coating is arranged in the metal micropore.

[0026] The present application provides an electronic device, which may be a teardrop-shaped folding display terminal, comprising: a display screen, a support member, an adhesive layer and a hinge mechanism; the support member is arranged on a side away from the light-emitting surface of the flexible display screen, the hinge mechanism is arranged on a side of the support member away from the display screen, a first area of ​​the surface of the support member away from the light-emitting surface of the flexible display screen is connected to a second area of ​​the surface of the hinge mechanism through the adhesive layer; the first area is provided with a coating, and / or the second area is provided with a coating. Among them, the adhesion between the support member and / or the hinge mechanism and the coating is greater than the adhesion between the support member and / or the hinge mechanism and the glue layer. By setting the coating, the bonding effect can be improved, and the problem of separation and debonding of the support member and / or the hinge mechanism from the glue layer due to insufficient adhesion between the support member and / or the hinge mechanism and the glue layer when the display screen is in a bent state can be solved. In addition, coating the surface of the support member and / or the hinge mechanism can increase the adhesion without destroying the structure of the support member and / or the hinge mechanism, thereby ensuring the reliability of the display module. Graphite can be set at other positions of the support member for heat dissipation. In this way, the bonding reliability and heat dissipation performance of the folding display terminal can be taken into account. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the structure of a foldable display terminal provided in an embodiment of the present application;

[0028] Figure 2 for Figure 1 A schematic diagram of the foldable display terminal shown in FIG. 1 is in a folded state;

[0029] Figure 3 for Figure 1 A schematic diagram of the foldable display terminal shown in the unfolded state;

[0030] Figure 4 is a cross-sectional view of a foldable display terminal;

[0031] Figure 5 A schematic diagram of the structure of a support member provided in an embodiment of the present application;

[0032] Figure 6 is a cross-sectional view of a display screen assembly in a folded state;

[0033] Figure 7 A cross-sectional view of a foldable display terminal provided in an embodiment of the present application;

[0034] Figure 8 A schematic diagram of the structure of an adhesive member provided in an embodiment of the present application;

[0035] Fig. 9 A schematic diagram of the structure of another adhesive member provided in an embodiment of the present application;

[0036] Fig.10 A schematic structural diagram of another adhesive member provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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:

[0042] like Figure 1As 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.

[0043] 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.

[0044] 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 .

[0045] 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 .

[0046] 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.

[0047] 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 may be a thin film layer formed after coating with glue, and the specific form of the glue layer 30 is not limited in the embodiment of the present application. In addition, other electronic components may be provided on the first middle frame 201 and the second middle frame 202, such as cameras, earphones, receivers, buttons, batteries, etc., and the embodiment of the present application does not limit other electronic components provided on the first middle frame 201 and the second middle frame 202.

[0048] In some embodiments, the flexible display screen 10 may include a first display portion 101 corresponding to the first middle frame, a second display portion 102 corresponding to the second middle frame, 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.

[0049] 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 .

[0050] 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.

[0051] 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.

[0052] Figure 3 The foldable display terminal 1 is in an unfolded state. In the unfolded state, the angle 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.

[0053] Figure 4 Shows Figure 1 The 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.

[0054] The support member 40 may be, for example, a thin stainless steel material. The support member 40 may be attached to the flexible display screen, thereby forming a display screen 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 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.

[0055] 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 .

[0056] 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.

[0057] 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.

[0058] The supporting part includes: a first supporting part 401 and a second supporting part 402, and the bending part includes: a first part 403, a second part (a first bending part 404 and a second bending part 405) and a third part (a first connecting part 406 and a second connecting part 407), and the third part is arranged between the first part and the second part.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] In some embodiments, Figure 4As 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.

[0063] 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.

[0064] 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.

[0065] 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.

[0066] 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 .

[0067] 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 .

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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 .

[0079] 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 .

[0080] like Figure 5 , Figure 6As 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.

[0081] 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.

[0082] 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.

[0083] The through groove 4001 and the through hole 4002 can be processed by chemical etching, for example.

[0084] 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 4 The 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.

[0085] As mentioned above, the first connecting portion 406 and the second connecting portion 407 are planes, which can be connected to the rotating shaft mechanism (the first structural member 2031 and the second structural member 2032) by dispensing. When the folding 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 rotating shaft mechanism are pulled against each other, so that the third part and the rotating shaft mechanism are separated, reducing the bending reliability. In some embodiments, the surfaces of the support member and the rotating shaft mechanism have cleanliness problems such as dirt and oil due to processing or process reasons, which will affect the bonding performance. And when the support member and the rotating shaft mechanism are made of metal materials, the glue layer between the two is quickly cooled after dispensing molding, and the molecular chain wetting ability is significantly reduced, and it is impossible to fully penetrate into the metal, making it difficult to form a good bonding interface, and the bonding performance is poor.

[0086] In addition, to ensure the bonding performance, the glue needs to meet a certain width, and the existing folding display terminal needs to achieve ultra-thin and ultra-small folding radius R design in a limited space, requiring the glue width to be smaller and smaller, which is prone to debonding during the bending process, thereby causing the display module to fail during bending. Figure 5 As shown, graphite 400 is disposed on the support member 40 for heat dissipation, and the width of the graphite 400 directly affects the glue dispensing area of ​​the display screen module ( Figure 5 When the width of the adhesive layer is reduced, there will be a risk of bending and debonding. Therefore, it is necessary to improve the connection stability between the support and the hinge mechanism to meet the requirements of the bonding reliability of the folding screen display module under the condition of limited bonding area.

[0087] 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 .

[0088] Among them, Figure 7 As shown, a first area of ​​the surface of the support member (406, 407) facing away from the light-emitting surface of the flexible display screen is connected to a second area of ​​the surface of the hinge mechanism (2031, 2032) via an adhesive layer, wherein the first area is provided with a coating (50a, 50b), and / or the second area is provided with a coating (50c, 50d).

[0089] The first area of ​​the support member 40 may be an area where the surface of the support member 40 is connected to the adhesive layer (303, 304). The second area of ​​the rotating shaft mechanism (2031, 2032) may be an area where the surface of the rotating shaft mechanism (2031, 2032) is connected to the adhesive layer (303, 304).

[0090] Next reference Figure 7A third area of ​​the surface of the support member (401, 402) facing away from the light-emitting surface of the flexible display screen is connected to a fourth area of ​​the surface of the middle frame (201, 202) via an adhesive layer, wherein the third area is provided with a coating (50e, 50f), and / or the fourth area is provided with a coating (50g, 50h).

[0091] The third area of ​​the support member 40 may be an area where the surface of the support member 40 is connected to the adhesive layer (301, 302). The fourth area of ​​the surface of the middle frame (201, 202) may be an area where the surface of the middle frame (201, 202) is connected to the adhesive layer (301, 302).

[0092] In this embodiment, the adhesion force between the support member and / or the rotating mechanism and the coating is greater than the adhesion force between the support member and / or the rotating mechanism and the adhesive layer. By providing the coating, the bonding effect can be improved, thereby solving the problem of separation and debonding of the support member and / or the rotating mechanism from the adhesive layer due to insufficient adhesion between the support member and / or the rotating mechanism and the adhesive layer when the display screen is in a bent state. In addition, coating the surface of the support member and / or the rotating mechanism can increase the adhesion without destroying the structure of the support member and / or the rotating mechanism, thereby ensuring the reliability of the display module.

[0093] like Figure 7 As shown, the coating can be disposed on the adhesive regions of the first connecting portion 406, the second connecting portion 407, the first supporting portion 401, the second supporting portion 402, the first middle frame 201, the second middle frame 202, the first structural member 2031, and the second structural member 2032. In this embodiment, the adhesive region refers to the region connected to the adhesive layer.

[0094] For example, Figure 8 As shown, the area where the surface of the first connecting portion 406 is connected to the third adhesive layer 303 is provided with a first coating 50a, the area where the surface of the second connecting portion 407 is connected to the fourth adhesive layer 304 is provided with a second coating 50b, the area where the surface of the first structural member 2031 is connected to the third adhesive layer 303 is provided with a third coating 50c, and the area where the surface of the second structural member 2032 is connected to the fourth adhesive layer 304 is provided with a fourth coating 50d.

[0095] A fifth coating 50e is provided in the area where the surface of the first support portion 401 is connected to the first adhesive layer 301, a sixth coating 50f is provided in the area where the surface of the second support portion 402 is connected to the second adhesive layer 302, a seventh coating 50g is provided in the area where the surface of the first middle frame 201 is connected to the first adhesive layer 301, and an eighth coating 50h is provided in the area where the surface of the second middle frame 202 is connected to the second adhesive layer 302.

[0096] The embodiment of the present application does not limit the scope of the coating. In some embodiments, the projection of the coating on the display screen at least partially overlaps with the projection of the adhesive layer (third adhesive layer 303, fourth adhesive layer 304) on the display screen. That is, the coating can fully or partially cover the adhesive area to improve the connection stability between the support layer and the rotating shaft mechanism.

[0097] In some embodiments, the material of the coating includes: multi-component epoxy ink, ink, etc.

[0098] For example, the molecular formula of the coating material is as follows:

[0099]

[0100] The embodiment of the present application does not limit the type and molding method of the adhesive layer between the support member and the shaft mechanism. In some embodiments, the adhesive layer includes: back glue, UV glue, foam glue, double-sided tape, OCA (Optically Clear Adhesive) optical glue. As a result, the adhesive layer can be bonded to the surface of the support member or the shaft mechanism, reducing the process difficulty. In addition, the coating of the material is similar to the material of the adhesive layer, and a similar compatible reaction can occur, thereby improving the bonding reliability.

[0101] In other embodiments, the adhesive layer can be formed by dispensing, thereby reducing the difficulty of forming.

[0102] The process of the coating is not limited in the present embodiment. In some embodiments, the coating can be applied to the adhesive area and heated to cure.

[0103] In other embodiments, the coating may be sprayed on the adhesive area and heated to cure.

[0104] Therefore, the coating is easy to form and the process difficulty is reduced.

[0105] The embodiments of the present application do not limit the material of the support member and the rotating shaft mechanism. In some embodiments, the surface of the support member and the rotating shaft mechanism may be made of metal. However, metal conducts heat quickly. After the glue layer is formed between the support member and the rotating shaft by dispensing glue (hot melt glue), the glue layer cools down quickly, and the molecular chain wetting ability is significantly reduced. It is unable to fully penetrate into the metal, and it is difficult to form a good bonding interface, and the bonding performance is poor.

[0106] In some embodiments, the support member includes: metal micropores, and the coating is disposed in the metal micropores, so that the coating can penetrate into the metal micropores, thereby increasing the contact area between the coating and the support member and improving the adhesion between the coating and the support member.

[0107] In some embodiments, the rotating mechanism comprises: metal micropores, and the coating is arranged in the metal micropores, so that the coating can penetrate into the metal micropores, thereby increasing the contact area between the coating and the rotating shaft mechanism and improving the adhesion between the coating and the rotating shaft mechanism.

[0108] In the above embodiment, the area where the surface of the first support portion 401 is connected to the first adhesive layer 301, the area where the surface of the second support portion 402 is connected to the second adhesive layer 302, the area where the surface of the first middle frame 201 is connected to the first adhesive layer 301, the area where the surface of the second middle frame 202 is connected to the second adhesive layer 302, the area where the surface of the first connection portion 406 is connected to the third adhesive layer 303, the area where the surface of the second connection portion 407 is connected to the fourth adhesive layer 304, the area where the surface of the first structural member 2031 is connected to the third adhesive layer 303, and the area where the surface of the second structural member 2032 is connected to the fourth adhesive layer 304 are all provided with a coating. In other embodiments, the coating may be provided only on the surface of the structural member on one side of the adhesive layer.

[0109] For example, Fig. 9 As shown, the first coating 50a may be provided only in the area where the surface of the first connection portion 406 is connected to the third adhesive layer 303, and the second coating 50b may be provided in the area where the surface of the second connection portion 407 is connected to the fourth adhesive layer 304. Fig.10 As shown, the third coating 50c can be provided only in the area where the surface of the first structural member 2031 is connected to the third adhesive layer 303, and the fourth coating 50d can be provided in the area where the surface of the second structural member 2032 is connected to the fourth adhesive layer 304. These all belong to the protection scope of this application.

[0110] The present application provides an electronic device, which may be a teardrop-shaped folding display terminal, comprising: a display screen, a support member, an adhesive layer and a hinge mechanism; the support member is arranged on a side away from the light-emitting surface of the flexible display screen, the hinge mechanism is arranged on a side of the support member away from the display screen, a first area of ​​the surface of the support member away from the light-emitting surface of the flexible display screen is connected to a second area of ​​the surface of the hinge mechanism through the adhesive layer; the first area is provided with a coating, and / or the second area is provided with a coating. Among them, the adhesion between the support member and / or the hinge mechanism and the coating is greater than the adhesion between the support member and / or the hinge mechanism and the glue layer. By setting the coating, the bonding effect can be improved, and the problem of separation and debonding of the support member and / or the hinge mechanism from the glue layer due to insufficient adhesion between the support member and / or the hinge mechanism and the glue layer when the display screen is in a bent state can be solved. In addition, coating the surface of the support member and / or the hinge mechanism can increase the adhesion without destroying the structure of the support member and / or the hinge mechanism, thereby ensuring the reliability of the display module. Graphite can be set at other positions of the support member for heat dissipation. In this way, the bonding reliability and heat dissipation performance of the folding display terminal can be taken into account.

[0111] 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 should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An electronic device, characterized in that: Including: a flexible display screen, a support, a glue layer and a rotating shaft mechanism; The support member is arranged on a side away from the light-emitting surface of the flexible display screen, and the rotating shaft mechanism is arranged on a side of the support member away from the flexible display screen; A first area of ​​the surface of the support member facing away from the light-emitting surface of the flexible display screen is connected to a second area of ​​the surface of the hinge mechanism through an adhesive layer; The first region is provided with a coating, and / or the second region is provided with a coating.

2. The electronic device according to claim 1, characterized in that: The materials of the coating include: multi-component epoxy ink and ink.

3. The electronic device according to claim 1, characterized in that: The coating is formed by painting or spraying.

4. The electronic device according to claim 1, characterized in that: The support member comprises: metal micropores, and the coating is arranged in the metal micropores.

5. The electronic device according to claim 1, characterized in that: The rotating shaft mechanism comprises: a metal micropore, and the coating is arranged in the metal micropore.

6. The electronic device according to claim 1, characterized in that: The adhesive layer includes: back adhesive, ultraviolet curing UV adhesive, foam adhesive, double-sided adhesive, and OCA optical adhesive.

7. The electronic device according to claim 1, characterized in that: The adhesive layer is formed by dispensing.

8. The electronic device according to claim 1, characterized in that: The electronic device further comprises: a middle frame, wherein the middle frame is arranged on a side of the support member away from the flexible display screen; A third area of ​​the surface of the support member facing away from the light-emitting surface of the flexible display screen is connected to a fourth area of ​​the surface of the middle frame through an adhesive layer; The third region is provided with a coating, and / or the fourth region is provided with a coating.

9. The electronic device according to any one of claims 1 to 8, characterized in that: The display screen is foldable.

10. The electronic device according to claim 9, characterized in that: 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; The third part is used to be connected to the rotating shaft mechanism through the adhesive layer.

11. The electronic device according to any one of claims 1 to 8, characterized in that: The projection of the coating layer on the display screen at least partially overlaps with the projection of the glue layer on the display screen.

12. A display module, characterized in that: The display module is connected to the rotating shaft mechanism, and the display module includes: a flexible display screen and a support member; The support member is arranged on a side away from the light-emitting surface of the flexible display screen, a first area of ​​the surface of the support member away from the light-emitting surface of the flexible display screen is provided with a coating, the hinge mechanism is arranged on a side of the support member away from the display screen, and the first area of ​​the support member is connected to the hinge mechanism through an adhesive layer.

13. The display module according to claim 12, characterized in that: The materials of the coating include: multi-component epoxy ink and ink molecular chain.

14. The display module according to claim 12 or 13, characterized in that: The coating is formed by painting or spraying.

15. The display module according to claim 12 or 13, characterized in that: The support member comprises: metal micropores, and the coating is arranged in the metal micropores.

16. A rotating shaft mechanism, characterized in that: A coating is provided on the first area of ​​the surface of the hinge mechanism, and the first area of ​​the hinge mechanism is connected to the display module via an adhesive layer.

17. The rotating shaft mechanism according to claim 16, characterized in that: The materials of the coating include: multi-component epoxy ink and ink molecular chain.

18. The rotating shaft mechanism according to claim 16 or 17, characterized in that: The coating is formed by painting or spraying.

19. The rotating shaft mechanism according to claim 16 or 17, characterized in that: The rotating shaft mechanism comprises: a metal micropore, and the coating is arranged in the metal micropore.

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