Electrical connection components and display panel

Abstract

The present application provides an electrical connection assembly and a display panel. The electrical connection assembly includes a first electrical connection member and a second electrical connection member arranged in a stacked manner. The first electrical connection member includes a first terminal portion and a second terminal portion spaced apart from each other, and the second electrical connection member includes a third terminal portion and a fourth terminal portion spaced apart from each other. The first terminal portion and the third terminal portion are bonded together, and the second terminal portion and the fourth terminal portion are arranged on the same side and are used to bond together with the component to be bonded. The first electrical connection member, located between the first terminal portion and the second terminal portion, has an extended length greater than the straight-line distance between the first terminal portion and the second terminal portion. Through the above-described design approach, the present application can improve the reliability of the bonded connection between the electrical connection assembly and the display panel.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and specifically relates to an electrical connection component and a display panel. Background Art

[0002] Currently, screens are generally bonded together using two stacked flexible circuit boards. When the two stacked flexible circuit boards are bent, the flexible circuit board on the inside of the bend may press against the flexible circuit board on the outside of the bend, thereby affecting the reliability of the bonding connection between the flexible circuit board and the screen. Summary of the Invention

[0003] The present application provides an electrical connection component and a display panel to improve the reliability of the bonding connection between the electrical connection component and the screen body.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide an electrical connection component, including: a first electrical connector and a second electrical connector arranged in a stacked manner, the first electrical connector includes a first terminal portion and a second terminal portion arranged at intervals, and the second electrical connector includes a third terminal portion and a fourth terminal portion arranged at intervals; and the first terminal portion is bonded to the third terminal portion, the second terminal portion and the fourth terminal portion are arranged on the same side, and are used to be bonded to the component to be bonded; wherein, the extension length of the first electrical connector located between the first terminal portion and the second terminal portion is greater than the straight-line distance between the first terminal portion and the second terminal portion.

[0005] In order to solve the above technical problems, another technical solution adopted in this application is: providing a display panel, including: a screen body, one side of the screen body includes a first bonding area and a second bonding area that are stacked and staggered; a bent electrical connection component; wherein the second terminal portion is bonded to the first bonding area, the fourth terminal portion is bonded to the second bonding area, and the first electrical connector is bent to form an accommodating space, and the second electrical connector is located in the accommodating space.

[0006] Different from the existing technology, the beneficial effect of the present application is: after the electrical connection assembly provided by the present application is bent, the first electrical connector can form an accommodating space, and the second electrical connector is located in the accommodating space; since the extension length of the first electrical connector located between the first terminal part and the second terminal part is greater than the straight-line distance between the first terminal part and the second terminal part, this method can make the accommodating space formed by the first electrical connector larger, and the probability of abutment contact between the second electrical connector and the first electrical connector is reduced, thereby increasing the reliability of the bonding connection between the first electrical connector and the second electrical connector and the component to be bonded. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive work, among which:

[0008] Figure 1 This is a structural diagram of an embodiment of the electrical connection assembly of the present application;

[0009] Figure 2 for Figure 1 A schematic structural diagram of another embodiment of the flexible support member;

[0010] Figure 3 This is a structural schematic diagram of another embodiment of the electrical connection assembly of the present application;

[0011] Figure 4 This is a structural schematic diagram of another embodiment of the electrical connection assembly of the present application;

[0012] Figure 5 This is a structural schematic diagram of another embodiment of the electrical connection assembly of the present application;

[0013] Figure 6 for Figure 5 A schematic structural diagram of an embodiment of a middle fold portion;

[0014] Figure 7 This is a schematic structural diagram of an embodiment of a display panel of the present application. DETAILED DESCRIPTION

[0015] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0016] See also Figure 1 , Figure 1This is a schematic structural diagram of one embodiment of an electrical connector assembly of the present application. The electrical connector assembly 10 includes a first electrical connector 100 and a second electrical connector 102, which are stacked. The first electrical connector 100 includes a first terminal portion 1000 and a second terminal portion 1002, which are spaced apart. The second electrical connector 102 includes a third terminal portion 1020 and a fourth terminal portion 1022, which are spaced apart. The first terminal portion 1000 and the third terminal portion 1020 are bonded together, while the second terminal portion 1002 and the fourth terminal portion 1022 are located on the same side and are used to bond to the component to be bonded. Optionally, the first terminal portion 1000, the second terminal portion 1002, the third terminal portion 1020, and the fourth terminal portion 1022 may each include multiple terminals spaced apart.

[0017] Among them, the extension length L1 of the first electrical connector 100 located between the first terminal portion 1000 and the second terminal portion 1002 is greater than the straight-line distance L2 between the first terminal portion 1000 and the second terminal portion 1002; that is, at this time, the first electrical connector 100 located between the first terminal portion 1000 and the second terminal portion 1002 is in a non-flattened state.

[0018] When the above-mentioned electrical connection component 10 is bent, the first electrical connector 100 can form an accommodating space, and the second electrical connector 102 is located in the accommodating space, that is, the first electrical connector 100 is located on the outside of the bend, and the second electrical connector 102 is located on the inside of the bend; since the extension length L1 of the first electrical connector 100 located between the first terminal portion 1000 and the second terminal portion 1002 is greater than the straight-line distance L2 between the first terminal portion 1000 and the second terminal portion 1002, this method can make the accommodating space formed by the first electrical connector 100 larger, and the probability of abutment contact between the second electrical connector 102 and the first electrical connector 100 is reduced, thereby increasing the reliability of the bonding connection between the first electrical connector 100, the second electrical connector 102 and the component to be bonded; when the component to be bonded is the screen of a display panel, the above-mentioned design method can improve the yield of the display panel.

[0019] Optionally, both the first electrical connector 100 and the second electrical connector 102 are flexible printed circuit boards; for example, the first electrical connector 100 may be an FPCA flexible printed circuit board, and the second electrical connector 102 may be a COF chip-on-film (COF) chip. Furthermore, the first terminal portion 1000 and the second terminal portion 1002 may be disposed on the side of the first electrical connector 100 facing the second electrical connector 102; the third terminal portion 1020 may be disposed on the side of the second electrical connector 102 facing the first electrical connector 100, and the fourth terminal portion 1022 may be disposed on the side of the second electrical connector 102 facing away from the first electrical connector 100. The chip 1024 on the second electrical connector 102 is disposed on the side of the second electrical connector 102 facing away from the first electrical connector 100. Of course, in other embodiments, the fourth terminal portion 1022 may also be disposed on the side of the second electrical connector 102 facing the first electrical connector 100, and this application is not limited thereto.

[0020] In one embodiment, Figure 1 As shown, the electrical connector assembly 10 provided in the present application further includes a flexible support member 104, which is located between the first electrical connector 100 and the second electrical connector 102. The height D1 of the flexible support member 104 is greater than the sum of the heights D2 of the first terminal portion 1000 and the third terminal portion 1020. A protrusion 1004 is formed on the first electrical connector 100 at the location of the flexible support member 104. The introduction of the flexible support member 104 can easily achieve an extension length L1 of the first electrical connector 100 located between the first terminal portion 1000 and the second terminal portion 1002 that is greater than the straight-line distance L2 between the first terminal portion 1000 and the second terminal portion 1002.

[0021] Alternatively, as Figure 1 As shown, the first electrical connector 100 located between the first terminal portion 1000 and the second terminal portion 1002 comprises a first flat portion 1006, a protrusion 1004 and a second flat portion 1008 connected to each other. The structural design of the first electrical connector 100 is relatively simple and easy to manufacture.

[0022] Alternatively, if Figure 1As shown in , an adhesive layer 106 is provided between the flexible support member 104 and the second electrical connector 102, and the flexible support member 104 is in contact with the first electrical connector 100; that is, there is no fixed connection between the flexible support member 104 and the first electrical connector 100. On the one hand, the provision of the adhesive layer 106 between the flexible support member 104 and the second electrical connector 102 can reduce the probability of displacement of the flexible support member 104 during bending and transportation. On the other hand, the first electrical connector 100 is located on the outside of the bend during bending. The non-fixed connection between the flexible support member 104 and the first electrical connector 100 can reduce the pulling force on the first electrical connector 100 during bending, making the first electrical connector 100 easier to bend.

[0023] Alternatively, if Figure 1 As shown, the flexible support member 104 has the same deformability in the stacking direction X of the first electrical connector 100 and the second electrical connector 102. Preferably, the flexible support member 104 is made of the same material in the stacking direction X, for example, sponge. The flexible support member 104 has a relatively simple structural design, and the sponge has a relatively high deformability. When the first electrical connector 100 and the second electrical connector 102 are bent, the flexible support member 104 is squeezed and becomes thinner, thereby dissipating some of the bending stress.

[0024] Of course, in other embodiments, such as Figure 2 As shown, Figure 2 for Figure 1 Schematic diagram of another embodiment of the flexible support member. In the stacking direction X, the deformability of the flexible support member 104 is different. Preferably, in the stacking direction X, the flexible support member 104 includes a central sublayer 1040, and the deformability of the flexible support member 104 increases in the direction away from the central sublayer 1040. In a specific application scenario, such as Figure 2As shown, in the stacking direction X, the flexible support member 104 includes a first sublayer 1042, a second sublayer 1044, and a third sublayer 1046, which are stacked together. The second sublayer 1044 is referred to as the central sublayer 1040. The first sublayer 1042 has a greater deformability than the second sublayer 1044, and the third sublayer 1046 has a greater deformability than the second sublayer 1044. For example, the first sublayer 1042 and the third sublayer 1046 can be made of sponge, for example, while the second sublayer 1044 can be made of silicone, for example. This design can reduce the pulling force exerted by the flexible support member 104 on the first and second electrical connectors 100, 102 during bending, thereby facilitating smoother bending of the first and second electrical connectors 100, 102. Furthermore, the low deformability design of the central sub-layer 1040 can ensure that the gap between the first electrical connector 100 and the second electrical connector 102 after bending meets a preset requirement.

[0025] Alternatively, if Figure 1 As shown, the flexible support member 104 is disposed away from the first terminal portion 1000 and the second terminal portion 1002. For example, the flexible support member 104 can be located in the middle region between the first terminal portion 1000 and the second terminal portion 1002. Since the flexible support member 104 deforms and expands after bending, and since the flexible support member 104 is generally made of an insulating material, the above design can reduce the probability of the flexible support member 104 abutting against the first terminal portion 1000 and the second terminal portion 1002 after expansion, thereby increasing the reliability of the electrical connection at the first terminal portion 1000 and the second terminal portion 1002.

[0026] Please refer again Figure 1 , this application schematically illustrates a flexible support member 104. It is understood that in other embodiments, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the structure of another embodiment of the electrical connection assembly of the present application. There are multiple flexible support members 104, and the multiple flexible support members 104 are spaced apart. This design approach can significantly increase the difference between the extended length L1 of the first electrical connector 100 between the first terminal portion 1000 and the second terminal portion 1002 and the straight-line distance L2 between the first terminal portion 1000 and the second terminal portion 1002. This allows the first electrical connector 100 to form a larger accommodation space after bending, further reducing the probability of abutment between the first electrical connector 100 and the second electrical connector 102 located inside it.

[0027] Alternatively, in other embodiments, Figure 4 As shown, Figure 4This is a schematic structural diagram of another embodiment of the electrical connection assembly of the present application. The flexible support member 104 includes a main body 1041 and a plurality of columns 1043 located on one side of the main body 1041. The columns 1043 are closer to the first electrical connector 100 relative to the main body 1041. The aforementioned design of the plurality of columns 1043 also achieves a larger difference between the extended length L1 and the straight-line distance L2. Furthermore, the flexible support member 104 is equivalent to a monolithic structure. The area of the main body 1041 of the flexible support member 104 facing the adhesive layer 106 is larger, thereby improving the bonding force between the flexible support member 104 and the adhesive layer 106, thereby reducing the probability of displacement of the flexible support member 104 during bending.

[0028] In the above embodiments, the extension length L1 is greater than the straight-line distance L2 by introducing the flexible support member 104. In other embodiments, this purpose can also be achieved by the first electrical connector 100 itself; specifically, please refer to Figure 5 , Figure 5 This is a schematic diagram of another embodiment of the electrical connection assembly of the present application. The first electrical connector 100, located between the first terminal portion 1000 and the second terminal portion 1002, includes at least one folded portion 1001. The folded portion 1001 can be understood as a structure similar to a folding fan, and the length of the folded portion 1001 when flattened is greater than its length when folded.

[0029] Optionally, the folded portion 1001 includes at least one of a V-shape, a W-shape, an M-shape, a U-shape and an N-shape. Figure 6 As shown, Figure 6 for Figure 5 A schematic diagram of the structure of one embodiment of a pleated portion. The pleated portion 1001 comprises a plurality of interconnected pleated units 10010, each of which has the same shape; for example, each pleated unit 10010 may be V-shaped, W-shaped, M-shaped, U-shaped, or N-shaped. The structure of the pleated portion 1001 is relatively simple and can be easily formed.

[0030] Alternatively, if Figure 5 As shown, the folded portion 1001 is disposed adjacent to the first terminal portion 1000 or the second terminal portion 1002. When the folded portion 1001 is not extended, its thickness is greater than that of the first electrical connector 100. Therefore, during the subsequent bending process, when the folded portion 1001 is not fully extended, the folded portion 1001 is away from the bending center. This design can reduce the thickness of the first and second electrical connectors 100, 102 at the bending center after bending, thereby better limiting the frame width.

[0031] Alternatively, as Figure 5As shown, there is one fold portion 1001, and it is disposed adjacent to the second terminal portion 1002. In other embodiments, there may be two fold portions 1001, and the two fold portions 1001 are disposed adjacent to the first terminal portion 1000 and the second terminal portion 1002, respectively. This application does not limit this.

[0032] In addition, in other embodiments, the above-mentioned folded portion 1001 and the flexible support member 104 may also exist at the same time; for example, in this case, the flexible support member 104 is located in the middle position between the first terminal portion 1000 and the second terminal portion 1002, and the folded portion 1001 is arranged close to the first terminal portion 1000 or the second terminal portion 1002.

[0033] See also Figure 7 , Figure 7 This is a schematic structural diagram of an embodiment of the display panel of the present application. The display panel includes a screen body 20 and any one of the above-mentioned electrical connection components 10 after being bent. The screen body 20 may be an OLED screen body, a Micro-LED screen body, etc. One side of the screen body 20 includes a first bonding area 204 and a second bonding area 206 that are stacked and staggered. A plurality of bonding terminals may be provided in the first bonding area 204 and the second bonding area 206, respectively. The second terminal portion 1002 of the first electrical connector 100 in the electrical connection component 10 is bonded to the first bonding area 204, and the fourth terminal portion 1022 is bonded to the second bonding area 206. The first electrical connector 100 is bent to form a receiving space 1003, and the second electrical connector 102 is located in the receiving space 1003. At this time, since the accommodation space 1003 formed by the first electrical connector 100 is larger, a gap is generated between the second electrical connector 102 and the first electrical connector 100 , and the influence of the second electrical connector 102 on the bonding position of the first electrical connector 100 is reduced.

[0034] Alternatively, as Figure 7 As shown, the screen body 20 includes an array layer 200 and a touch layer 202 stacked together, a first bonding area 204 is located on the touch layer 202, a second bonding area 206 is located on the array layer 200, and an orthographic projection of the touch layer 202 on the array layer 200 is located outside the second bonding area 206.

[0035] Alternatively, if Figure 7As shown, the electrical connector assembly 10 further includes a flexible support member 104. The flexible support member 104 is positioned between the first electrical connector 100 and the second electrical connector 102 in a first direction Y from the first electrical connector 100 to the second electrical connector 102. A height D3 of the flexible support member 104 is less than or equal to the sum of the heights D1 of the first terminal portion 1000 and the third terminal portion 1020. That is, during the bending process, the flexible support member 104 is squeezed, deformed, and thinned, thereby reducing the width of the first electrical connector 100 and the second electrical connector 102 in the first direction Y, thereby facilitating a narrow frame.

[0036] In addition, it should be noted that in the preparation Figure 7 When a display panel is installed, the electrical connection assembly 10 mentioned in the above embodiment can be provided in advance, and then the electrical connection assembly 10 can be bonded to the screen body 20. Alternatively, separate first electrical connectors 100 and second electrical connectors 102 can be provided in advance, and then the first electrical connectors 100 and second electrical connectors 102 can be bonded to the screen body 20.

[0037] The above description is merely an embodiment of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. An electrical connection assembly, characterized in that: include: A first electrical connector and a second electrical connector are stacked, wherein the first electrical connector includes a first terminal portion and a second terminal portion spaced apart from each other, and the second electrical connector includes a third terminal portion and a fourth terminal portion spaced apart from each other; the first terminal portion and the third terminal portion are bonded to each other, and the second terminal portion and the fourth terminal portion are disposed on the same side and are used for bonding to the component to be bonded; a flexible support member located between the first electrical connector and the second electrical connector, wherein the height of the flexible support member is greater than the sum of the heights of the first terminal portion and the third terminal portion, and the first electrical connector at the location of the flexible support member forms a protrusion, wherein the deformability of the flexible support member varies in a stacking direction, and in the stacking direction, the flexible support member includes a central sublayer, and the deformability of the flexible support member increases in a direction away from the central sublayer; Wherein, an extension length of the first electrical connector located between the first terminal portion and the second terminal portion is greater than a straight-line distance between the first terminal portion and the second terminal portion.

2. The electrical connection assembly according to claim 1, wherein: The first electrical connector located between the first terminal portion and the second terminal portion includes at least one corrugated portion.

3. The electrical connection assembly according to claim 2, wherein: The folded portion includes at least one of a V-shape, a W-shape, an M-shape, a U-shape and an N-shape.

4. The electrical connection assembly according to claim 2, wherein: The corrugated portion is disposed adjacent to the first terminal portion or the second terminal portion.

5. The electrical connection assembly according to claim 1, wherein: An adhesive layer is provided between the flexible support member and the second electrical connection member, and the flexible support member is in contact with the first electrical connection member.

6. The electrical connection assembly according to claim 1, wherein: The flexible support member is disposed away from the first terminal portion and the second terminal portion.

7. The electrical connection assembly according to claim 1, wherein: The flexible support member comprises a sponge.

8. The electrical connection assembly according to claim 1, wherein: There are multiple flexible support members, and the multiple flexible support members are arranged at intervals; or, The flexible support member includes a body and a plurality of columns located on one side of the body. The columns are close to the first electrical connector relative to the body.

9. A display panel, characterized in that: include: A screen body, wherein one side of the screen body comprises a first bonding area and a second bonding area that are stacked and staggered; The electrical connection assembly according to any one of claims 1 to 8 after bending; wherein the second terminal portion is bonded to the first bonding area, the fourth terminal portion is bonded to the second bonding area, and the first electrical connector is bent to form an accommodating space, and the second electrical connector is located in the accommodating space.

10. The display panel according to claim 9, wherein: The screen body includes an array layer and a touch layer stacked together, the first bonding area is located on the touch layer, the second bonding area is located on the array layer, and the orthographic projection of the touch layer on the array layer is located outside the second bonding area.

11. The display panel according to claim 9, wherein In a direction from the first electrical connector to the second electrical connector, a height of the bent flexible support member is less than or equal to a sum of heights of the first terminal portion and the third terminal portion.

Images