FPC and touch glass external connection structure

Abstract

The utility model discloses an FPC and touch control glass external connection structure which comprises a cover plate, at least one ICON button is arranged on the back face of the cover plate, the touch control glass adheres to the back face of the cover plate through OCA glue, an FPC is bound to one end of the touch control glass, an adhesive layer is arranged on the periphery of the ICON button, the FPC is arranged on the back face of the ICON button through the adhesive layer and electrically connected with the ICON button, and the touch control glass is arranged on the back face of the cover plate. The FPC is compatible with the touch control function of the ICON button and the control circuit connection function of the touch control glass, the FPC is bound with the touch control glass, the ICON button is arranged on the back face of the cover plate, a viscous layer is arranged on the periphery of the ICON button, the cover plate adheres to the FPC through the viscous layer, and the FPC is electrically connected with the ICON button, so that the key touch control function can be achieved outside the touch control glass without increasing the size of the touch control glass, and the key touch control effect is improved. The design structure is simple, the cost is low, the total economic benefit is increased, and the production cost, manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle-mounted screens, in particular to an external connection structure of an FPC and a touch glass. Background Art

[0002] The touch buttons on the touch module are generally placed on the touch glass and electrically connected to it (such as Figure 1 ), if the button touch needs to be placed at the edge of the cover, the touch glass shape needs to be enlarged and in contact with it. The production of touch glass adopts mask exposure and development, and the large plate shape is limited. If the touch glass shape is enlarged, the overall economic benefits will be reduced.

[0003] For example, the invention patent (CN111600592A) discloses a capacitive touch button, which includes a button unit, a touch module and an elastic element. The touch module is provided with a first transparent conductive layer, and the button unit includes a light guide and a metal frame. The main body of the metal frame covers the side of the light guide and exposes the top surface of the light guide, and an extension portion extends from the periphery of the bottom end of the main body. The projection portion of the extension portion overlaps with the first transparent conductive layer. In addition, a second transparent conductive layer electrically connected to the extension portion may also be provided. The elastic element is connected between the button unit and the touch module. When the user performs a touch operation, the button unit is pressed toward the touch module, and the capacitance value between the extension portion or the second transparent conductive layer and the first transparent conductive layer changes. In this way, the equivalent distance between the finger and the sensing electrode can be greatly reduced, thereby increasing the sensing amount of the touch signal.

[0004] However, when the inventor of the present invention implemented this device, he found the following defects: pressing the button unit toward the touch module cannot improve the problem of contact with the touch glass after it is enlarged. This design structure is complex and costly, and the overall economic benefits will be reduced, which is not conducive to production costs and manpower and material resources. Utility Model Content

[0005] Based on this, it is necessary to provide an FPC and touch glass external connection structure to address the above technical problems. The FPC is bound to the touch glass, the ICON button is set on the back of the cover, a sticky layer is set around the ICON button, the cover is bonded to the FPC through the sticky layer, and the FPC is electrically connected to the ICON button. There is no need to increase the size of the touch glass, and the button touch function can be realized on the outside of the touch glass. This design has a simple structure and low cost, and the overall economic benefits will be increased, which is conducive to saving production costs and manpower and material resources.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] An external connection structure between an FPC and a touch glass.

[0008] The FPC and touch glass external connection structure specifically includes:

[0009] A cover plate, wherein at least one ICON button is arranged on the back of the cover plate, a touch glass is bonded to the back of the cover plate by OCA glue, an FPC is bound to one end of the touch glass, an adhesive layer is arranged around the periphery of the ICON button, the FPC is arranged on the back of the ICON button through the adhesive layer and is electrically connected to the ICON, and the FPC is compatible with the touch function of the ICON button and the control circuit connection function of the touch glass.

[0010] As a preferred implementation of the FPC and touch glass external connection structure provided by the utility model, the FPC is electrically connected to the ICON button through a channel wiring.

[0011] As a preferred implementation of the FPC and touch glass external connection structure provided by the utility model, the width of the channel wiring is 1.0-3.0 mm.

[0012] As a preferred implementation of the FPC and touch glass external connection structure provided by the utility model, the adhesive layer is rectangular, and the distance between the adhesive layer and the ICON button is controlled to be 0.3-1.0 mm.

[0013] As a preferred implementation of the external connection structure of the FPC and the touch glass provided by the utility model, the distance between the edge of the adhesive layer and the edge of the FPC is controlled to be 0.2-1.0 mm.

[0014] As a preferred implementation of the external connection structure of the FPC and the touch glass provided by the utility model, the number of the ICON buttons is two, the two ICON buttons have a touch function and are both electrically connected to the FPC through the channel wiring.

[0015] As a preferred implementation of the external connection structure of the FPC and the touch glass provided by the utility model, the FPC is bonded to the touch glass by ACF glue.

[0016] As a preferred implementation of the external connection structure of FPC and touch glass provided by the utility model, the ICON button and the touch glass are staggered on the back of the cover plate.

[0017] As a preferred implementation of the FPC and touch glass external connection structure provided by the utility model, the thickness of the adhesive layer is 0.1-0.3 mm.

[0018] As a preferred implementation of the external connection structure of the FPC and the touch glass provided by the utility model, the touch glass is made of soda glass or aluminosilicate glass.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model provides an external connection structure of FPC and touch glass. The FPC is bound to the touch glass, an ICON button is arranged on the back of a cover plate, an adhesive layer is arranged around the ICON button, the cover plate is bonded to the FPC through the adhesive layer, and the FPC is electrically connected to the ICON button, so that the key touch function can be realized on the outside of the touch glass without increasing the size of the touch glass. The design has a simple structure and low cost, and the overall economic benefit will be increased, which is conducive to saving production costs and manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of the prior art;

[0023] Figure 2 This is a schematic diagram of the structure of the external connection structure between the FPC and the touch glass provided by the utility model;

[0024] Figure 3 for Figure 2 Side view of

[0025] Figure 4 for Figure 3 A local enlarged view of point A;

[0026] Figure 5 It is a structural schematic diagram of the cover plate in the utility model.

[0027] The markings in the figure are as follows:

[0028] Cover plate 1; ICON button 2; OCA glue 3; touch glass 4; FPC 5; adhesive layer 6; channel routing 7; ACF glue 8. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As background technology, Figure 1 Pressing the button unit toward the touch module does not improve the problem of contact with the touch glass after it is enlarged, and the overall economic benefits will be reduced. This design structure is complex and costly, and the overall economic benefits will be reduced, which is not conducive to production costs and manpower and material resources.

[0031] In order to solve this technical problem, the utility model provides an external connection structure of an FPC and a touch glass.

[0032] Specifically, please refer to Figure 2-5 The external connection structure between FPC and touch glass specifically includes:

[0033] A cover plate 1, with at least one ICON button 2 arranged on the back of the cover plate 1, a touch glass 4 bonded to the back of the cover plate 1 via OCA glue 3, an FPC 5 bound to one end of the touch glass 4, an adhesive layer 6 arranged around the ICON button 2, the FPC5 being arranged on the back of the ICON button 2 via the adhesive layer 6 and being electrically connected to the ICON, and the FPC5 being compatible with the touch function of the ICON button 2 and the control circuit connection function of the touch glass 4.

[0034] The utility model provides an external connection structure of FPC and touch glass, in which FPC5 is bound to the touch glass, an ICON button 2 is arranged on the back of a cover plate 1, an adhesive layer 6 is arranged around the ICON button 2, the cover plate 1 is bonded to FPC5 through the adhesive layer 6, and FPC5 is electrically connected to the ICON button 2, thereby eliminating the need to increase the size of the touch glass 4 and realizing the key touch function outside the touch glass 4. The design has a simple structure and low cost, and the overall economic benefit will be increased, which is beneficial to saving production costs and manpower and material resources.

[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings. Example 1

[0038] Please refer to Figure 2-5 , an FPC and touch glass external connection structure, which includes a cover plate 1, at least one ICON button 2 is arranged on the back of the cover plate 1, a touch glass 4 is bonded to the back of the cover plate 1 through OCA glue 3, one end of the touch glass 4 is bound to FPC5, and an adhesive layer 6 is arranged around the ICON button 2. The FPC5 is arranged on the back of the ICON button 2 through the adhesive layer 6 and is electrically connected to the ICON. The FPC5 is compatible with the touch function of the ICON button 2 and the control circuit connection function of the touch glass 4.

[0039] Through the above structural design, the pattern of the ICON button 2 and the passing channel of the FPC5 are designed on both sides of the FPC5 where the touch glass 4 is bound. When there is enough space, the pattern of the ICON button 2 and the passing channel of the FPC5 can also be designed in the middle; the pattern of the ICON button 2 has a touch function, and this touch function is compatible with the FPC5; the adhesive layer 6 is double-sided adhesive, located between the cover plate 1 and the FPC5, and is used to fix the FPC5, and the FPC5 is bound to the touch glass; the ICON button 2 is arranged on the back of the cover plate 1, and the adhesive layer 6 is arranged around the ICON button 2. The cover plate 1 is bonded to the FPC5 through the adhesive layer 6, and the FPC5 is electrically connected to the ICON button 2, so there is no need to increase the size of the touch glass 4, and the key touch function can be realized outside the touch glass 4. The design has a simple structure and low cost, and the overall economic benefit will be increased, which is conducive to saving production costs and manpower and material resources.

[0040] like Figure 2 As shown, specifically, the FPC 5 is electrically connected to the ICON button 2 through the channel wiring 7 .

[0041] Through the above structural design, the channel wiring 7 electrically connects the FPC5 with the ICON button 2. The FPC5 is connected to the ICON button 2 by covering the adhesive layer 6 around the ICON. The channel wiring 7 on the FPC5 electrically connects the ICON button 2, so that the key touch function can be realized outside the touch glass 4 without increasing the size of the touch glass 4. The design has a simple structure and low cost, and the overall economic benefits will be increased, which is conducive to saving production costs and manpower and material resources.

[0042] like Figure 2 As shown, specifically, the width of the channel trace 7 is 1.0-3.0 mm.

[0043] Through the above structural design, the channel wiring 7 is used to connect the FPC5 and the ICON button 2, so that the ICON button 2 can realize the function of a virtual key without directly contacting the touch glass 4. The width of the channel wiring 7 is 1.0~3.0mm. While ensuring the space for the channel wiring 7, its size is designed to be as small as possible, which is beneficial to reducing the bending resistance of the FPC5.

[0044] like Figure 2 As shown, specifically, the adhesive layer 6 is rectangular, and the distance between the adhesive layer 6 and the ICON button 2 is controlled to be 0.3-1.0 mm.

[0045] Through the above structural design, in this embodiment, the distance between the adhesive layer 6 and the ICON button 2 is controlled at 0.5mm. The adhesive layer 6 is used to connect the cover plate 1 and the FPC5. The adhesive layer 6 is double-sided adhesive and is used to fix the FPC5. The distance between the adhesive layer 6 and the ICON button 2 is controlled to be 0.3~1.0mm to avoid contact with it, otherwise structural interference will occur, thereby preventing the phenomenon of unstable electrical connection.

[0046] like Figure 2 As shown, specifically, the distance between the edge of the adhesive layer 6 and the edge of the FPC 5 is controlled to be 0.2-1.0 mm.

[0047] Through the above structural design, in this embodiment, the distance between the edge of the adhesive layer 6 and the edge of the FPC5 is controlled to be 0.5mm to avoid contact with it, otherwise structural interference will occur, preventing the phenomenon of unstable electrical connection.

[0048] like Figure 2 As shown in FIG. 5 , specifically, there are two ICON buttons 2 , and the two ICON buttons 2 have a touch function and are both electrically connected to FPC 5 through channel wiring 7 .

[0049] Through the above structural design, the number of ICON buttons 2 is two. In the present embodiment, the ICON buttons 2 are a power button and a return button, and both are electrically connected to FPC 5 through channel wiring 7 . Example 2

[0050] The external connection structure between the FPC and the touch glass provided in Example 1 is further optimized. Specifically, Figure 3-4 As shown, the FPC 5 is bonded to the touch glass 4 through the ACF glue 8 .

[0051] Through the above structural design, FPC5 is bound to the touch glass 4 through ACF glue 8. ACF glue 8 is a transparent polymer connection material with three major properties: bonding, conductivity, and insulation. Its notable feature is that it is conductive in the vertical direction and insulated in the horizontal direction, which can solve some fine wire connection problems that previous connectors could not handle. Example 3

[0052] The external connection structure between the FPC and the touch glass provided in Example 1 or 2 is further optimized, such as Figure 2 As shown, the ICON button 2 and the touch glass 4 are staggered on the back of the cover plate 1 .

[0053] Through the above structural design, the ICON button 2 and the touch glass 4 are staggered on the back of the cover plate 1, the FPC5 is bound to the touch glass, the ICON button 2 is set on the back of the cover plate 1, and the adhesive layer 6 is set around the ICON button 2. The cover plate 1 is bonded to the FPC5 through the adhesive layer 6, and the FPC5 is electrically connected to the ICON button 2. There is no need to increase the size of the touch glass 4, and the key touch function can be realized on the outside of the touch glass 4. The design has a simple structure and low cost, and the overall economic benefits will be increased, which is conducive to saving production costs and manpower and material resources.

[0054] Specifically, the thickness of the adhesive layer 6 is 0.1-0.3 mm.

[0055] Through the above structural design, the adhesive layer 6 is used to connect the cover plate 1 and the FPC5. The adhesive layer 6 is double-sided adhesive and is used to fix the FPC5. In the present embodiment, the thickness of the adhesive layer 6 is 0.1 mm. The FPC5 is bound to the touch glass. The ICON button 2 is arranged on the back of the cover plate 1. The adhesive layer 6 is arranged around the ICON button 2. The cover plate 1 is bonded to the FPC5 through the adhesive layer 6. The FPC5 is electrically connected to the ICON button 2. Therefore, there is no need to increase the size of the touch glass 4. The key touch function can also be realized on the outside of the touch glass 4. The present design has a simple structure and low cost. The overall economic benefit will be increased, which is conducive to saving production costs and manpower and material resources.

[0056] like Figure 4 As shown, specifically, the touch glass 4 is made of soda glass or aluminosilicate glass.

[0057] Through the above structural design, in this embodiment, the touch glass 4 and the cover plate 1 are both made of soda glass.

[0058] The use process of the FPC and touch glass external connection structure provided by the utility model is as follows:

[0059] First, an ICON button 2 is set on the back of the cover 1, and an adhesive layer 6 is set around the ICON button 2, and then the FPC5 is bound to the touch glass. After the FPC5 is bonded to the ICON button 2, it is electrically connected to the ICON button 2 through the channel wiring 7 set on the FPC5. The FPC5 is bound to the touch glass, the ICON button 2 is set on the back of the cover 1, and an adhesive layer 6 is set around the ICON button 2. The cover 1 is bonded to the FPC5 through the adhesive layer 6, and the FPC5 is electrically connected to the ICON button 2. There is no need to increase the size of the touch glass 4, and the key touch function can be realized outside the touch glass 4. The design has a simple structure and low cost, and the overall economic benefit will be increased, which is conducive to saving production costs and manpower and material resources.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. An external connection structure of FPC and touch glass, characterized in that: The invention comprises a cover plate (1), at least one ICON button (2) is arranged on the back of the cover plate (1), a touch glass (4) is bonded to the back of the cover plate (1) via an OCA adhesive (3), an FPC (5) is bound to one end of the touch glass (4), an adhesive layer (6) is arranged around the periphery of the ICON button (2), the FPC (5) is arranged on the back of the ICON button (2) via the adhesive layer (6) and is electrically connected to the ICON, and the FPC (5) is compatible with the touch function of the ICON button (2) and the control circuit connection function of the touch glass (4).

2. The FPC and touch glass external connection structure according to claim 1, characterized in that: The FPC (5) is electrically connected to the ICON button (2) via a channel wiring (7).

3. The FPC and touch glass external connection structure according to claim 2, characterized in that: The width of the channel wiring (7) is 1.0-3.0 mm.

4. The FPC and touch glass external connection structure according to claim 3, characterized in that: The adhesive layer (6) is rectangular, and the distance between the adhesive layer (6) and the ICON button (2) is controlled to be 0.3-1.0 mm.

5. The FPC and touch glass external connection structure according to claim 4, characterized in that: The distance between the edge of the adhesive layer (6) and the edge of the FPC (5) is controlled to be 0.2-1.0 mm.

6. The FPC and touch glass external connection structure according to claim 5, characterized in that: The number of the ICON buttons (2) is two, and the two ICON buttons (2) have a touch function and are both electrically connected to the FPC (5) through the channel wiring (7).

7. The FPC and touch glass external connection structure according to claim 1, characterized in that: The FPC (5) is bonded to the touch glass (4) via ACF glue (8).

8. The FPC and touch glass external connection structure according to claim 1, characterized in that: The ICON button (2) and the touch glass (4) are both arranged staggered on the back side of the cover plate (1).

9. The FPC and touch glass external connection structure according to claim 1, characterized in that: The thickness of the adhesive layer (6) is 0.1-0.3 mm.

10. The FPC and touch glass external connection structure according to claim 1, characterized in that: The touch glass (4) is made of soda glass or aluminosilicate glass.

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