Connection assembly and display device

Abstract

The application provides a connecting assembly and a display device, the connecting assembly comprising: a connector having a clamping groove; and a first circuit board comprising a plug-in end inserted into the clamping groove, the plug-in end comprising a base layer, a pin arranged on the base layer, and a reinforcing layer arranged on a side of the base layer away from the pin, the reinforcing layer comprising a protruding portion, when the plug-in end is inserted into the clamping groove, an edge of a side of the protruding portion facing the clamping groove is flush with an edge of the clamping groove and is in contact with a side wall surrounding the clamping groove. The application facilitates the plug-in alignment of the circuit board and the connector, and can avoid the phenomena of insertion being too deep, too shallow or offset, and the resulting damage to the connector or the circuit board, and the failure of the two to achieve electrical connection.

Description

Technical Field

[0001] This invention relates to the field of circuit board interconnection technology, and more specifically to a connection component and a display device. Background Technology

[0002] Circuit boards are mainly used in the connection parts of electronic products. The connection method is usually to plug the circuit board's terminals into connectors to achieve mechanical and electrical connections. However, when plugging the circuit board into the connector, it is often difficult to position it correctly, and it is easy to insert it too deeply, too shallowly, or misalign it, which can lead to damage to the connector or circuit board, or failure to achieve an electrical connection. Summary of the Invention

[0003] The present invention provides a connection component and a display device, which facilitates the insertion and alignment of the circuit board and the connector, and avoids phenomena such as excessively deep, shallow or misaligned insertion, as well as damage to the connector or circuit board and failure to achieve electrical connection between the two.

[0004] In one aspect, the present invention provides a connection assembly, comprising: a connector having a slot; a first circuit board including a plug-in end for insertion into the slot, the plug-in end including a base layer, pins disposed on the base layer, and a reinforcing layer disposed on a side of the base layer opposite to the pins, the reinforcing layer including a protrusion, wherein after the plug-in end is inserted into the slot, the edge of the protrusion facing the slot is flush with the edge of the slot and contacts the sidewall surrounding the slot.

[0005] In some embodiments, the width of the protrusion increases along the direction from the first circuit board to the connector.

[0006] In some embodiments, the number of protrusions is multiple, and the multiple protrusions are distributed on opposite sides of the reinforcing layer.

[0007] In some embodiments, the protrusions are present on both sides of the reinforcing layer along the length of the slot.

[0008] In some embodiments, the plug-in end includes a first extension region located outside the card slot, the first extension region having a first positioning mark; the card slot has a first sidewall, the first sidewall forming a second extension region corresponding to the first extension region, the second extension region having a second positioning mark, the second positioning mark being adapted to the first positioning mark for positioning when the plug-in end is plugged into the card slot; preferably, the first sidewall is located on the side of the plug-in end where the reinforcing layer is located.

[0009] In some embodiments, after the plug-in end is plugged into the slot, the first positioning mark and the second positioning mark overlap in the orthographic projection along the direction from the first extension region to the second extension region.

[0010] In some embodiments, the first positioning mark includes a positioning hole and / or a structure embedded within the first epitaxial region; the second positioning mark includes a positioning hole and / or a structure embedded within the second epitaxial region.

[0011] In some embodiments, the positioning hole includes a through hole.

[0012] In some embodiments, the plug-in terminal further includes a second cover film located in the first epitaxial region, the second cover film being stacked with the substrate layer, and the structure embedded inside the first epitaxial region being located between the substrate layer and the second cover film.

[0013] In some embodiments, the second epitaxial region includes a first cover layer and a second cover layer, and the structure embedded within the second epitaxial region is located between the first cover layer and the second cover layer.

[0014] In some embodiments, after the plug-in terminal is inserted into the slot, the edge of the pin facing the outside of the slot is flush with the edge of the slot.

[0015] In some embodiments, the slot has a second sidewall located on the side of the plug end where the pin is located, and the second sidewall is transparent.

[0016] In some embodiments, the first circuit board includes a flexible circuit board.

[0017] In some embodiments, the connection assembly further includes a second circuit board to which the connector is soldered.

[0018] In another aspect, the present invention provides a display device including the above-described connecting component.

[0019] In this invention, a reinforcing layer is provided on the back side of the substrate layer of the first circuit board (i.e., the side of the substrate layer away from the pins), and a protrusion is provided on the reinforcing layer to limit the insertion depth of the plug end in the slot. The protrusion limits the insertion, which facilitates the insertion and alignment of the plug end with the slot of the connector, avoiding excessively deep, shallow, or misaligned insertion, as well as damage to the connector or circuit board and the inability to achieve electrical connection. At the same time, it facilitates the assembly of terminal devices, improves assembly efficiency, and reduces costs. In addition, the protrusion on the reinforcing layer has the advantages of simple structure and easy manufacturing, which is conducive to practical industrial application. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the planar structure of a first circuit board according to an embodiment of the present invention;

[0021] Figure 2 The edge of the first circuit board in an embodiment of the present invention Figure 1 A cross-sectional view of line A-A';

[0022] Figure 3 The edge of the first circuit board in an embodiment of the present invention Figure 1 A schematic diagram of the cross section of line B-B';

[0023] Figure 4 This is a schematic diagram of the connector structure according to an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the first circuit board and the connector after being plugged in according to an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the first circuit board and the connector after being plugged in according to an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the first circuit board and the connector after being plugged in according to an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of a first circuit board according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached drawings: 1: First circuit board; 100: Groove; 101: First cover film; 102: First metal layer; 103: Substrate; 104: Second metal layer; 1041: Pin; 1042: First trace; 105: Second cover film; 106: Reinforcing layer; 107: Substrate layer; 10: Plug end; 11: Insertion area; 12: First epitaxial area; 120: Protrusion; 121: First positioning mark; 13: Body area; 2: Connector; 20: Slot; 201: Connecting line; 21: First sidewall; 211: Second epitaxial area; 22: Second sidewall; Arrow a: First direction; Arrow b: Second direction; Arrow c: Third direction. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below. The specific embodiments listed below are merely descriptions of the principles and features of the present invention, and the examples are only for explaining the present invention and are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Circuit boards are primarily used in the connection parts of electronic products. The connection method typically involves inserting the circuit board's connector terminals (gold finger terminals) into the slots of a connector to achieve mechanical and electrical connection. For example, flexible printed circuit boards (FPCs) are printed circuit boards made with a flexible insulating substrate layer. They possess characteristics such as free bending, winding, and folding, and have gradually gained widespread attention and application. They can be connected to various components in electronic products such as display devices through connector insertion.

[0031] However, when the circuit board and the connector are plugged in, it is usually difficult to position them. Generally, the depth of the connector slot is the same as the length of the circuit board plug-in end. If the circuit board plug-in end is inserted too deeply, too shallowly, or misaligned, it will cause damage to the connector or circuit board, and the two will not be able to achieve electrical connection.

[0032] In view of the above problems, Figures 1 to 8 As shown, an embodiment of the present invention provides a connection component, including a connector 2 having a slot 20; a first circuit board 1 including a plug end 10 that is plugged into the slot 20, the plug end 10 including a base layer 107, pins 1041 disposed on the base layer 107, and a reinforcing layer 106 disposed on the side of the base layer 107 away from the pins 1041, the reinforcing layer 106 including a protrusion 120, after the plug end 10 is plugged into the slot 20, the protrusion 120 near the edge of the slot 20 is flush with the edge of the slot 20 and contacts the side wall surrounding the slot 20.

[0033] In this way, by providing a reinforcing layer 106 on the back side of the substrate layer 107 of the first circuit board 1 (i.e., the side of the substrate layer 107 away from the pin 1041) and providing a protrusion 120 on the reinforcing layer 106, when the plug end 10 is inserted into the slot 20, the protrusion 120 is flush with the edge of the slot 20 and contacts the side wall surrounding the slot 20. Thus, the protrusion 120 limits the insertion depth of the plug end 10 in the slot 20. That is, after the plug end 10 is inserted into place, the protrusion 120 prevents the plug end 10 from continuing to be inserted into the slot 20, thereby limiting the insertion depth. This facilitates the insertion and alignment of the plug end 10 with the slot 20 of the connector 2, avoiding the plug end 10 being inserted too deeply, too shallowly, or misaligned, as well as the resulting damage to the connector 2 or circuit board, and the inability of the two to achieve electrical connection. This effectively overcomes the defects of the prior art.

[0034] Specifically, Figure 4 This is a schematic diagram of the connector 2 according to an embodiment of the present invention, as shown below. Figure 4As shown, the sidewalls surrounding the slot 20 include a first sidewall 21, a second sidewall 22, a third sidewall 23, and a fourth sidewall 24. That is, the slot 20 has a first sidewall 21, a second sidewall 22, a third sidewall 23, and a fourth sidewall 24. The first sidewall 21, the third sidewall 23, the second sidewall 22, the fourth sidewall 24, and the first sidewall 21 are connected in sequence to form the slot 20. When the insertion end 10 is inserted into place, the protrusion 120 can contact at least one of the first sidewall 21, the third sidewall 23, the second sidewall 22, and the fourth sidewall 24. Specifically, it can abut against each other to make the edge of the protrusion 120 near the slot 20 contact the sidewalls surrounding the slot 20, thereby restricting the insertion end 10 from being further inserted into the slot 20.

[0035] The first sidewall 21 can be located on the side of the plug-in end 10 where the reinforcing layer 106 is provided (i.e., on the back side of the plug-in end 10). When the plug-in end 10 is inserted into the slot 20, the first sidewall 21 and the reinforcing layer 106 face each other. The second sidewall 22 is located on the side of the plug-in end where the pins 1041 are provided (i.e., on the front side of the plug-in end gold fingers, facing each other). That is, the second sidewall 22 and the first sidewall 21 are located on opposite sides of the slot 20, and the direction from the first sidewall 21 to the second sidewall 22 is basically parallel to the thickness direction of the connector 2.

[0036] Specifically, Figure 1 This is a schematic diagram of the planar structure of the first circuit board 1 according to an embodiment of the present invention. Figure 2 For the first circuit board 1 along Figure 1 A cross-sectional view of line A-A'; Figure 3 For the first circuit board 1 along Figure 1 A cross-sectional diagram of line B-B'.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the first circuit board 1 may include a reinforcing layer 106, a substrate layer 107, a second metal layer 104, and a second cover film 105 stacked sequentially. The substrate layer 107 includes a first cover film 101, a first metal layer 102, and a substrate 103 stacked sequentially. The reinforcing layer 106 is disposed on the side of the first cover film 101 away from the first metal layer 102, and the pins 1041 are disposed on the side of the substrate 103 away from the first metal layer 102.

[0038] Specifically, pin 1041 may be formed by a second metal layer 104. In some embodiments, the second metal layer 104 includes the aforementioned pin 1041 and a first trace 1042 connected to the pin 1041, and the first trace 1042 connects the pin 1041 to the internal circuit of the first circuit board 1.

[0039] Specifically, the reinforcing layer 106 can be bonded to the first cover film 101, and can be bonded with conventional adhesives in the art.

[0040] Specifically, the reinforcing layer 106 may include a polymer, such as polyimide (PI).

[0041] like Figure 1 and Figure 2 As shown, the plug-in terminal 10 includes an insertion area 11 and a first extension area 12 that are connected to each other. When the plug-in terminal 10 is plugged into the connector 2 (i.e., after the plug-in terminal 10 is plugged into place), the insertion area 11 is located inside the card slot 20, and the first extension area 12 is located outside the card slot 20. That is, the length of the insertion area 11 is basically the same as the depth of the card slot 20 (the length direction of the insertion area 11 is parallel to the depth direction of the card slot 20). When the insertion area 11 is just inserted into the card slot 20, the edge of the insertion area 11 near the first extension area 12 is flush with the edge of the card slot 20.

[0042] The protrusion 120 is located in the first extension region 12. Specifically, it can be formed by extending the reinforcing layer 106 of the first extension region 12 outward. The protrusion 120 may only have the reinforcing layer 106 (i.e., the material of the protrusion 120 and the reinforcing layer 106 is the same) and may not have other structures such as the substrate layer 107, but it is not limited to this.

[0043] After the plug end 10 is inserted into place, the edge of the protrusion 120 near the insertion area 11 is flush with the edge of the insertion area 11 near the first extension area 12. That is, in the direction from the first extension area 12 to the insertion area 11, the distance from the protrusion 120 to the edge of the insertion area 11 away from the first extension area 12 is basically equal to the depth of the slot 20. Thus, when the plug end is inserted into the connector 2, the insertion area 11 is located in the slot 20, and the protrusion 120 contacts the edge of the slot 20, restricting the plug end from being inserted into the slot 20, thereby achieving the insertion and alignment of the plug end and the connector 2.

[0044] For example, such as Figure 1 and Figure 2 As shown, the width of the protrusion 120 increases along the first direction a, and can be gradually increased. The width direction of the protrusion is parallel to the second direction b.

[0045] Among them, such as Figure 1 As shown, the first direction a can specifically be the direction from the first extension area 12 to the insertion area 11 (also the direction from the first circuit board 1 to the connector 2 after the plug-in end 10 is inserted into the card slot 20), and the length direction of the first circuit board 1 is parallel to the first direction a.

[0046] like Figure 1 As shown, the cross-section of the protrusion 120 perpendicular to its thickness direction is, for example, triangular, but not limited to this.

[0047] Specifically, the number of protrusions 120 can be one or more, for example, two (e.g., ...). Figure 1 and Figure 3 (As shown). When there are multiple protrusions 120, the multiple protrusions 120 can be evenly or unevenly distributed in the first extension region 12. The edge of each protrusion 120 near the insertion region 11 is flush with the edge of the insertion region 11 near the first extension region 12. The shapes of these protrusions 120 can be the same or different.

[0048] Furthermore, the protrusion 120 may be provided on at least one side of the reinforcing layer 106, specifically on at least one side of the reinforcing layer 106 in the second direction b. When there are multiple protrusions 120, these multiple protrusions 120 may be distributed on opposite sides of the reinforcing layer 106, specifically on opposite sides of the reinforcing layer 106 in the second direction b (e.g., Figure 1 and Figure 3 As shown in the diagram, in the second direction b, there are protrusions 120 on both sides of the reinforcing layer 106, which facilitates more precise alignment when the first circuit board 1 is inserted into the connector 2. Specifically, the second direction b can be parallel to the length direction of the slot 20 (that is, in the length direction of the slot 20, there are protrusions 120 on both sides of the reinforcing layer 106).

[0049] Furthermore, the length direction / second direction b of the slot 20 is substantially perpendicular to the direction from the first circuit board 1 to the connector 2, the length direction of the slot 20 is substantially perpendicular to the thickness direction of the plug end 10 / first circuit board 1 / connector 2, and the length direction of the slot 20 is substantially parallel to the width direction of the protrusion 120 / plug end 10 / first circuit board 1.

[0050] In addition, such as Figure 1 and Figure 2 As shown, the first circuit board 1 may also include a body area 13 connected to the plug-in terminal 10, and the body area 13, the first extension area 12, and the insertion area 11 are connected in sequence.

[0051] In this configuration, pin 1041 is located in insertion region 11, and second cover film 105 is located in body region 13 and first epitaxial region 12. Insertion region 11 does not have second cover film 105 to expose pin 1041, for example, forming gold fingers. Thus, after insertion region 11 is inserted into card slot 20, it is electrically connected to connector 2 through pin 1041. Therefore, first epitaxial region 12 includes a reinforcing layer 106, a substrate layer 107, a first trace 1042, and a second cover film 105 stacked sequentially, and insertion region 11 includes a reinforcing layer 106, a substrate layer 107, and pin 1041 stacked sequentially.

[0052] In some embodiments, such as Figure 1 and Figure 2 As shown, the reinforcing layer 106 is located at the insertion end 10 (i.e., located in the insertion area 11 and the first extension area 12). The body area 13 does not have the reinforcing layer 106. That is, the body area 13 includes the substrate layer 107, the second metal layer 104 and the second cover film 105 stacked in sequence, but does not include the reinforcing layer 106.

[0053] In addition, such as Figure 1 As shown, connector 2 includes a connecting line 201 adapted to pin 1041. The connecting line 201 is located in slot 20. After the insertion area 11 of the first circuit board 1 is inserted into the slot 20 of connector 2, pin 1041 is connected to the connecting line 201, thereby realizing the electrical connection between the first circuit board 1 and connector 2.

[0054] The first metal layer 102, the second metal layer 104 (i.e., pin 1041 and first trace 1042), and the connecting line 201 in the slot 20 may each include copper, but are not limited to this.

[0055] In some embodiments, such as Figure 5 and Figure 6 As shown, the first extension region 12 has a first positioning mark 121; the first sidewall 21 of the slot 20 has a second extension region 211 corresponding to the first extension region 12. The second extension region 211 has a second positioning mark, which is adapted to the first positioning mark 121 and is used for positioning when the insertion end 10 is inserted into the slot 20.

[0056] Specifically, the second extension region 211 can be formed by the first sidewall 21 extending outward in a direction away from the card slot 20, that is, the second extension region 211 can be a region extending outside the card slot 20. The orthographic projections of the second extension region 211 and the second sidewall 22 in the direction from the first extension region 12 to the second extension region 211 can not overlap, that is, the orthographic projections of the second extension region 211 and the card slot 20 in the direction from the first extension region 12 to the second extension region 211 do not overlap.

[0057] In addition, such as Figure 5 and Figure 6 As shown, the second extension region 211 and the first extension region 12 have at least partially overlapping orthographic projections along the direction from the first extension region 12 to the second extension region 211. The first positioning mark 121 is located in the area where the first extension region 12 and the second extension region 211 overlap, and the second positioning mark is located in the area where the second extension region 211 and the first extension region 12 overlap.

[0058] Specifically, after the insertion end 10 is inserted into the slot, the orthographic projections of the first positioning mark 121 and the second positioning mark overlap in the direction from the first extension region 12 to the second extension region 211.

[0059] Specifically, the orthographic projections of the first positioning mark 121 and the second positioning mark are perpendicular to the direction from the first extension region 12 to the second extension region 211, and are substantially parallel to the third direction c, i.e., parallel to the thickness direction of the first circuit board 1 / connector 2. The size and shape of the orthographic projections of the first and second positioning marks are essentially the same, so that after the insertion end 10 is inserted into the slot 20, the first positioning mark 121 and the second positioning mark overlap. Therefore, when the insertion end of the first circuit board 1 is inserted into the connector 2, positioning can be performed based on whether the first positioning mark 121 and the second positioning mark overlap, to determine whether the insertion end 10 is inserted too deeply, too shallowly, or misaligned, thereby further improving the accuracy of the insertion alignment.

[0060] Specifically, the first positioning mark 121 may include a positioning hole (such as...). Figure 6 (as shown) and / or a structure embedded within the first extensional region 12 (i.e., the first positioning mark 121 is located within the first extensional region 12, such as...) Figure 5 As shown), the second positioning mark may include a positioning hole and / or a structure embedded in the second extension region 211 (i.e., the second positioning mark is located inside the second extension region 211). That is, when the first positioning mark 121 includes a positioning hole, the second positioning mark includes a corresponding positioning hole; when the first positioning mark 121 includes a structure embedded in the first extension region 12, the second positioning mark includes a corresponding structure embedded in the second extension region 211. Thus, positioning can be performed based on whether the first positioning mark 121 and the second positioning mark overlap.

[0061] The aforementioned positioning hole may specifically include a through hole. That is, when the first positioning mark 121 includes a positioning hole, the positioning hole may be a through hole that penetrates the first extension region 12 along the thickness direction of the first extension region 12. When the second positioning mark includes a positioning hole, the positioning hole may be a through hole that penetrates the second extension region 211 along the thickness direction of the second extension region 211. In this way, positioning is performed by whether the through holes of the two overlap.

[0062] As described above, the "structure embedded inside the first epitaxial region 12" means that the structure (first positioning mark 121) is covered by other materials in the thickness direction of the first epitaxial region 12 (which is also the thickness direction of the first circuit board 1, parallel to the third direction c), that is, the structure is not exposed.

[0063] Specifically, in the thickness direction of the first epitaxial region 12, there are covering materials on both sides of the first positioning mark 121. In some embodiments, the structure embedded in the first epitaxial region 12 may be located between the substrate layer 107 and the second covering film 105. That is, when the first positioning mark 121 is a structure embedded in the first epitaxial region 12, it is located between the substrate layer 107 and the second covering film 105. In other words, the covering material on one side is the substrate layer 107, and the covering material on the other side is the second covering film 105.

[0064] As mentioned above, the "structure embedded inside the second extension region 211" means that the structure (second positioning mark) is covered by other materials in the thickness direction of the second extension region 211 (which is also the thickness direction of the connector 2), that is, the structure is not exposed.

[0065] Specifically, in the thickness direction of the second extension region 211, there is covering material on both sides of the second positioning mark. In some embodiments, the second extension region 211 includes a first covering layer and a second covering layer stacked along its thickness direction. The structure embedded in the second extension region 211 is located between the first covering layer and the second covering layer. That is, when the second positioning mark is a structure embedded in the second extension region 211, it is located between the first covering layer and the second covering layer. In other words, the covering material on one side is the first covering layer, and the covering material on the other side is the second covering layer.

[0066] The second covering layer is located between the second positioning mark and the first extension area 12 (i.e., on the side of the second positioning mark facing the first extension area 12), and the first covering layer is located on the side of the second positioning mark away from the first extension area 12.

[0067] It is understood that the covering material on at least one side of the first positioning mark 121 facing the second extension region 211 is a transparent material, and the covering material on the other side (i.e. the side of the first positioning mark 121 facing away from the second extension region 211) can be a transparent material or an opaque material; the covering material on at least one side of the second positioning mark facing the first extension region 12 is a transparent material, and the covering material on the other side (i.e. the side of the second positioning mark facing away from the first extension region 12) can be a transparent material or an opaque material; and the covering materials on both sides of at least one of the first positioning mark 121 and the second positioning mark are transparent materials, so as to facilitate observation of whether the first positioning mark 121 and the second positioning mark overlap, thereby realizing the insertion and alignment of the first circuit board 1 and the connector 2.

[0068] Specifically, the first extension region 12 includes a first positioning region, and a first positioning mark 121 is disposed in the first positioning region. The second extension region 211 includes a second positioning region, and a second positioning mark is disposed in the second positioning region. When the first positioning mark 121 and the second positioning mark are positioning holes, the first positioning region and the second positioning region can be transparent or opaque. When the first positioning mark 121 includes a structure embedded in the first extension region 12 and the second positioning mark includes a structure embedded in the second extension region 211, at least one of the first positioning region and the second positioning region is transparent (i.e., the covering materials on both sides of the first positioning mark 121 and the second positioning mark are transparent materials). In the first positioning region, the material located between the first positioning mark 121 and the second positioning region is transparent, and in the second positioning region, the material located between the second positioning mark and the first positioning region is transparent, so as to facilitate observation of whether the first positioning mark 121 and the second positioning mark overlap.

[0069] It can be understood that the transparency of the first positioning area specifically means that the remaining areas of the first positioning area other than the first positioning mark 121 are transparent, that is, the material of the remaining areas of the first positioning area other than the first positioning mark 121 (such as the second cover film 105, the substrate layer, the reinforcing layer, etc.) is a transparent material; the transparency of the second positioning area specifically means that the remaining areas of the second positioning area other than the second positioning mark are transparent, that is, the material of the remaining areas of the second positioning area other than the second positioning mark (such as the first cover layer and the second cover layer, etc.) is a transparent material.

[0070] For example, the first positioning area is transparent (i.e., the reinforcing layer, substrate layer, and second cover film 105 of the first positioning area are transparent), and in the second positioning area, the second cover film between the second positioning mark and the first positioning area is transparent, while the first cover film on the side of the second positioning mark away from the first positioning area may be transparent or opaque; or, the second positioning area is transparent (i.e., both the first cover film and the second cover film in the second positioning area are transparent), and in the first positioning area, the second cover film 105 between the first positioning mark 121 and the second positioning area is transparent, while the substrate layer 107 and / or the reinforcing layer 106 on the side of the first positioning mark 121 away from the second positioning area may be transparent or opaque; or, both the first and second positioning areas are transparent, i.e., the reinforcing layer 106, substrate layer 107, and second cover film 105 of the first positioning area are transparent, and both the first cover film and the second cover film in the second positioning area are transparent.

[0071] Specifically, the first and second covering layers can be made of plastic, but are not limited to this.

[0072] Furthermore, the structures embedded in the first extensional region 12 and the structures embedded in the second extensional region 211 are, for example, cross-shaped (i.e., cross Mark), and the materials of these structures are, for example, metal, including copper, but not limited thereto.

[0073] The structure embedded within the first extensional region 12 may include a first structure disposed in the first metal layer 102 and / or a second structure disposed in the second metal layer 104. Specifically, when the first positioning mark 121 is the first structure, the first positioning region does not include the second metal layer 104, so that the first positioning region is transparent; when the first positioning mark 121 is the second structure, the first positioning region does not include the first metal layer 102, so that the first positioning region is transparent; when the first positioning mark 121 includes both the first structure and the second structure, the shape and size parameters of the first structure and the second structure are basically equal, for example, both are cross marks, so that their orthographic projections along the direction from the first extensional region 12 to the second extensional region 211 overlap to form the first positioning mark 121, while the first positioning region is transparent.

[0074] Specifically, the first positioning mark 121 may be etched by the first metal layer 102 and / or the second metal layer 104. For example, when the first positioning mark 121 includes both the first structure and the second structure, the second metal layer 104 located around the second structure and the first metal layer 102 located around the first structure in the first positioning area may be etched away according to the preset shape and size parameters of the first positioning area to form a transparent first positioning area.

[0075] In addition, the second extension region 211 may also include a third metal layer located between the first cover layer and the second cover layer. The first positioning mark 121 is etched by the third metal layer, for example, etched into a cross shape. In specific implementation, the third metal layer located around the second positioning mark in the second positioning region can be etched away to form a transparent second positioning region.

[0076] The third metal layer may include a second trace that is electrically connected to the connecting line 201 in the slot 20. The third metal layer / second trace may be located on the same layer as the connecting line 201 in the connector 2. The third metal layer and the connecting line 201 may each include copper, but are not limited thereto.

[0077] The width, length, area, and other parameters of the first positioning area are greater than those of the first positioning mark 121. The orthographic projection of the first positioning mark 121 along the direction from the first extension area 12 to the second extension area 211 lies within the orthographic projection of the first positioning area along the same direction. Similarly, the width, length, area, and other parameters of the second positioning area are greater than those of the second positioning mark 121. The orthographic projection of the second positioning mark along the direction from the first extension area 12 to the second extension area 211 lies within the orthographic projection of the second positioning area along the same direction. This embodiment of the invention does not impose special limitations on the shape and size of the first and second positioning areas, as long as it is possible to observe whether the first positioning mark 121 and the second positioning mark overlap through either the first or second positioning area.

[0078] In some embodiments, the second sidewall 22 is transparent, so that when the plug end 10 is plugged into the connector 2, the insertion status of the plug end 10 in the slot 20 can be observed through the second sidewall 22, which further assists in positioning and avoids situations such as insertion too deep, too shallow or misalignment.

[0079] In some embodiments, such as Figure 7 and Figure 8 As shown, after the plug-in terminal 10 is plugged into the card slot 20, the pin 1041 faces the outer edge of the card slot 20 (also the edge of the pin 1041 near the first extension area 12) and is flush with the edge of the card slot 20. That is, the pin 1041 is located in the insertion area 11 and does not extend to the first extension area 12. In other words, the edge of the pin 1041 near the first extension area 12 is flush with the edge of the insertion area 11 near the first extension area 12.

[0080] Since no second cover film 105 or other film layer structure is provided on pin 1041 to expose pin 1041, the edge of pin 1041 will have a different shape than the first epitaxial region 12. For example, when pin 1041 is copper, the insertion area 11 is equivalent to the exposed copper area. Copper is usually yellow. Therefore, the insertion alignment can be performed based on the color difference between the insertion area 11 / pin 1041 and the first epitaxial region 12. That is, the boundary between the insertion area 11 / pin 1041 and the first epitaxial region 12 is used as the insertion alignment line. After the insertion area 11 is inserted into the card slot 20, the edge of pin 1041 facing the outside of the card slot 20 can be observed to be flush with the edge of the card slot 20 based on the color and other shapes of the edge of pin 1041. Thus, the alignment can be further assisted by whether the edge of pin 1041 facing the outside of the card slot 20 is flush with the edge of the card slot 20, avoiding situations such as insertion too deep, too shallow, or misalignment.

[0081] The edge of the card slot 20 is also the edge of the second sidewall 22 near the first circuit board 1.

[0082] Under normal circumstances, such as Figure 1 , Figures 5 to 8 As shown, the insertion area 11 of the first circuit board 1 is provided with a groove 100. The groove 100 can be specifically provided on one side of the insertion area 11 parallel to the first direction a, for example, it is formed by the recess of the reinforcing layer 106 and the substrate layer 107 of the insertion area 11. The number of grooves 100 can be one or more, for example, two. The two grooves 100 are located on opposite sides of the insertion area 11. After the insertion end 10 is inserted into the connector 2, the direction from the groove 100 on one side of the insertion area 11 to the groove 100 on the other side of the insertion area 11 is basically parallel to the second direction b.

[0083] Correspondingly, the slot 20 has a locking structure adapted to the groove 100 of the first circuit board 1. This locking structure is, for example, an elastic element, which can be configured to be pushed outward and elastically released inward by the plug-in end 10 of the first circuit board 1. That is, during the process of inserting the plug-in end 10 into the slot 20, the locking structure can be pushed outward and elastically released into the groove 100 of the plug-in end 10 after the plug-in end 10 is inserted into place. In other words, after the plug-in end 10 is plugged into the connector 2, the locking structure in the slot 20 is locked in the groove 100 of the insertion area 11, thereby locking the first circuit board 1 and improving the connection stability between the first circuit board 1 and the connector 2.

[0084] According to the inventor's research, when the first circuit board 1 has a groove 100 structure, if there is a phenomenon such as insertion being too deep or misalignment, it is very easy to cause poor connection or damage between the first circuit board 1 and the connector 2. However, by setting a protrusion 120 in the reinforcing layer 106 for insertion alignment in the embodiment of the present invention, the phenomenon of insertion being too deep, too shallow or misalignment can be effectively avoided. Therefore, while improving the connection stability between the first circuit board 1 and the connector 2, it can also avoid damage to the connector 2 or the circuit board and poor connection between the two.

[0085] Specifically, the first circuit board 1 may include a flexible printed circuit (FPC), but is not limited to this.

[0086] In addition, the above-mentioned connection assembly also includes a second circuit board, and the connector 2 is disposed on the second circuit board, specifically it can be soldered onto the second circuit board. In this way, the plug end 10 of the first circuit board 1 is plugged into the connector 2, thereby realizing the mechanical connection and electrical connection between the first circuit board 1 and the second circuit board.

[0087] The second circuit board may include a printed circuit board (PCB), such as an FPC.

[0088] Specifically, the connector 2 mentioned above may include a ZIF (Zero Insertion Force) connector, but is not limited to this.

[0089] The display device provided in this embodiment of the invention includes the above-described connecting components.

[0090] Specifically, the display device may include a display module, a motherboard and the aforementioned first circuit board 1. The motherboard includes the aforementioned second circuit board, and the connector 2 is disposed on the second circuit board. One end of the first circuit board 1 is plugged into the connector 2, and the other end is electrically connected to the display module.

[0091] The display module can be a conventional display module in this field, such as a panel.

[0092] For example, the aforementioned display device can be a display device such as an OLED display, or any product or component with display function, such as a television, digital camera, mobile phone, or tablet computer, that includes such a display device. The advantages of this display device over the prior art are the same as those of the aforementioned display panel, and will not be repeated here.

[0093] In the description of this invention, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection (network connection); they can refer to a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. Those skilled in the art can understand the specific meanings of the above-mentioned terms within this invention based on the specific circumstances. Furthermore, terms such as "first" and "second" are used for descriptive purposes only, such as distinguishing components to more clearly illustrate / explain the technical solution, and should not be construed as indicating or implying the number of indicated technical features or a substantially significant order thereof.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A connecting component, characterized in that, include: Connector with slot; A first circuit board includes a connector for insertion into the slot. The connector includes a substrate layer, pins on the substrate layer, and a reinforcing layer on the side of the substrate layer opposite to the pins. The reinforcing layer includes a protrusion. After the connector is inserted into the slot, the edge of the protrusion facing the slot is flush with the edge of the slot and contacts the sidewall surrounding the slot. The connector includes a first extension region outside the slot, and the first extension region has a first positioning mark. The slot has a first sidewall, and the first sidewall forms a second extension region corresponding to the first extension region. The second extension region has a second positioning mark, which is adapted to the first positioning mark for positioning when the connector is inserted into the slot. The second extension region and the slot do not overlap in the orthographic projection along the direction from the first extension region to the second extension region.

2. The connection component according to claim 1, characterized in that, Along the direction from the first circuit board to the connector, the width of the protrusion tends to increase.

3. The connection component according to claim 1 or 2, characterized in that, The number of protrusions is multiple, and the multiple protrusions are distributed on opposite sides of the reinforcing layer.

4. The connecting component according to claim 3, characterized in that, The protrusions are present on both sides of the reinforcing layer along the length of the slot.

5. The connection component according to claim 1, characterized in that, The first sidewall is located on the side of the plug end where the reinforcing layer is provided.

6. The connecting component according to claim 5, characterized in that, After the insertion end is inserted into the slot, the orthographic projections of the first positioning mark and the second positioning mark overlap in the direction from the first extension region to the second extension region.

7. The connecting component according to claim 5 or 6, characterized in that, The first positioning mark includes a positioning hole and / or a structure embedded inside the first epitaxial region; the second positioning mark includes a positioning hole and / or a structure embedded inside the second epitaxial region.

8. The connection component according to claim 7, characterized in that, The positioning hole includes a through hole; The insertion end also includes a second cover film located in the first epitaxial region. The second cover film is stacked with the substrate layer, and the structure embedded in the first epitaxial region is located between the substrate layer and the second cover film. The second extensional region includes a first cover layer and a second cover layer, and the structure embedded in the second extensional region is located between the first cover layer and the second cover layer.

9. The connection component according to claim 1, characterized in that, After the connector is inserted into the slot, the pin faces the outer edge of the slot and is flush with the edge of the slot.

10. The connection component according to claim 1, characterized in that, The slot has a second sidewall located on the side of the plug end where the pin is located, and the second sidewall is transparent.

11. The connection component according to claim 1, characterized in that, The first circuit board includes a flexible circuit board; And / or, the connection assembly further includes a second circuit board to which the connector is soldered.

12. A display device, characterized in that, Includes the connection component as described in any one of claims 1-11.

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