TP display module

Abstract

The embodiment of the utility model belongs to the technical field of display modules. The utility model further relates to a TP display module which comprises a backlight metal frame, the backlight metal frame is provided with a main screen FPC and a touch control FPC body located on one side of the main screen FPC, the touch control FPC body is provided with a copper foil conductive area, and the copper foil conductive area and the touch control FPC body are both connected with the backlight metal frame. Through the arrangement of the copper foil conductive area, the connection stability and strength of the touch FPC main body and the backlight metal frame are improved, the problem that the touch FPC main body may be torn off or warped when being stressed is effectively avoided, the improvement enables the module to be more reliable in the transportation, installation and use process, defective products are reduced, the production efficiency is improved, and the production cost is reduced. The whole quality of the product is improved, the copper foil conductive area is made of copper foil, the copper foil is used as a metal conductive material, the surface of the copper foil generally has good adhesion, and the copper foil is used in cooperation with the conductive double-sided tape.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, and more specifically, to a TP display module. Background Art

[0002] In the current module production process, the connection between the touch panel (TP) and the flexible printed circuit board (FPC) of the main screen is a key process step. The traditional practice is to stack the touch FPC on the backlight and adhere it to the metal surface of the backlight through a conductive double-sided tape. However, this connection method has a significant defect: the adhesion of the conductive double-sided tape is weaker than that of the insulating double-sided tape. Therefore, during the production, transportation and use of the module, especially at the corners with greater force, the touch FPC is prone to tearing or warping, which not only affects the appearance and reliability of the module, but may also lead to customer complaints and returns, causing economic losses and brand damage to the company. Therefore, we have made improvements to this and proposed a TP display module.

[0003] For example, a Chinese patent (publication number: CN220357377U) discloses a display module with dual FPC binding positions, and its specification discloses: Liquid crystal display devices have been widely used in various information, communication and consumer electronic products due to their advantages of light weight, small size and low power consumption. The liquid crystal display module is the core display device in the liquid crystal display device, and the liquid crystal display module is mainly composed of a backlight and a liquid crystal display screen. In the prior art, the main screen FPC is bound to the liquid crystal display screen, and the main screen FPC is usually bound to the substrate in the liquid crystal display screen. The main screen FPC is provided with a binding area for binding to the substrate. However, there is only one binding area on the main screen FPC. During the use of the display screen, if the binding area is not firmly attached and warps up, part of the main screen FPC circuit will not be able to connect with the display screen, resulting in the display screen not being able to display normally. The above patents can prove the defects of the prior art. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present invention is that the touch FPC is stacked on the backlight and adhered to the metal surface of the backlight by a conductive double-sided tape, which easily causes the touch FPC to tear off or warp.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A TP display module comprises: a backlight metal frame, on which a main screen FPC and a touch FPC body located on one side of the main screen FPC are arranged, on which a copper foil conductive area is arranged, and both the copper foil conductive area and the touch FPC body are connected to the backlight metal frame. The present application improves the connection stability and strength between the touch FPC body and the backlight metal frame by setting the copper foil conductive area, and effectively avoids the problem of tearing off or warping of the touch FPC body when subjected to force. This improvement makes the module more reliable during transportation, installation and use, reduces the generation of defective products, and improves the overall quality of the product. The copper foil conductive area is made of copper foil. As a metal conductive material, the copper foil usually has good adhesion on its surface. By using the copper foil in combination with a conductive double-sided adhesive tape, the adhesion of the overall connection can be increased, and the risk of tearing off or warping can be reduced.

[0007] As an improved manner of the present invention, the copper foil conductive area and the touch FPC body are connected to the backlight metal frame via conductive double-sided adhesive.

[0008] As an improved manner of the utility model, a TP display screen is arranged in the backlight metal frame, and the touch FPC body is connected to the TP display screen and the main screen FPC.

[0009] As an improved method of the utility model, the main screen FPC is provided with several, and the touch FPC body is welded together with the main screen FPC through PIN pins.

[0010] As an improved manner of the utility model, a first connecting wire is fixedly connected between the copper foil conductive area and one of the PIN pins.

[0011] As an improvement of the present invention, a second connecting wire is also connected to the first connecting wire, and the second connecting wire extends to the gold finger of the main screen FPC.

[0012] As an improvement of the utility model, a backlight source is further arranged in the backlight metal frame, the backlight source is connected to a backlight FPC, and the backlight FPC is connected to the main screen FPC.

[0013] As an improved manner of the utility model, contacts are also arranged on the backlight metal frame.

[0014] As an improvement of the present invention, a protective member is connected to a side of the backlight metal frame away from the main screen FPC, and the protective member is used to cooperate with the backlight metal frame to protect the TP display screen.

[0015] As an improved manner of the utility model, the protective member is a cover plate, and the cover plate is connected to a side of the backlight metal frame away from the main screen FPC.

[0016] Compared with the prior art, the embodiments of the present invention mainly have the following beneficial effects:

[0017] In order to solve the problem that the touch FPC is easily torn off or warped in the prior art, in which the touch FPC is stacked on the backlight and adhered to the metal surface of the backlight by conductive double-sided tape, the present application improves the connection stability and strength between the touch FPC body and the backlight metal frame by setting up a copper foil conductive area, effectively avoiding the problem of tearing off or warping of the touch FPC body when subjected to force. This improvement makes the module more reliable during transportation, installation and use, reduces the generation of defective products, and improves the overall quality of the product. The copper foil conductive area is made of copper foil. As a metal conductive material, copper foil usually has good adhesion on its surface. By using copper foil in combination with conductive double-sided tape, the adhesion of the overall connection can be increased and the risk of tearing off or warping can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the TP display module provided in this application;

[0019] Figure 2 The TP display module provided for this application Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 The TP display module provided for this application Figure 1 Enlarged structural diagram at B in the middle.

[0021] Indicated in the figure:

[0022] 1. Backlight metal frame; 2. Main screen FPC; 201. PIN foot; 3. Touch FPC body; 301. Copper foil conductive area; 4. First connection trace; 5. Second connection trace; 6. Backlight FPC; 7. Contact; 8. Cover plate. DETAILED DESCRIPTION

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which the present invention belongs; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Reference to "embodiments" herein means that specific features, structures, or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] As mentioned in the background technology, in the current module production process, the connection between the touch panel (TP) and the flexible printed circuit board (FPC) of the main screen is a key process step. The traditional method is to stack the touch FPC on the backlight and adhere it to the metal surface of the backlight through a conductive double-sided tape. However, this connection method has a significant defect: the adhesion of the conductive double-sided tape is weaker than that of the insulating double-sided tape. Therefore, during the production, transportation and use of the module, especially at the corners with greater force, the touch FPC is prone to tearing or warping, which not only affects the appearance and reliability of the module, but may also lead to customer complaints and returns, causing economic losses and brand damage to the company.

[0025] In order to solve this technical problem, the utility model provides a TP display module.

[0026] Specifically, please refer to Figure 1-Figure 3 TP display module specifically includes:

[0027] A backlight metal frame 1 is provided with a main screen FPC 2 and a touch FPC body 3 located on one side of the main screen FPC 2 . A copper foil conductive area 301 is provided on the touch FPC body 3 . Both the copper foil conductive area 301 and the touch FPC body 3 are connected to the backlight metal frame 1 .

[0028] The TP display module provided by the utility model improves the connection stability and strength between the touch FPC body 3 and the backlight metal frame 1 by setting the copper foil conductive area 301, effectively avoiding the problem of tearing off or warping of the touch FPC body 3 when subjected to force. This improvement makes the module more reliable during transportation, installation and use, reduces the generation of defective products, and improves the overall quality of the product. The copper foil conductive area 301 is made of copper foil. Copper foil, as a metal conductive material, usually has good adhesion on its surface. By using copper foil in combination with conductive double-sided tape, the adhesion of the overall connection can be increased and the risk of tearing off or warping can be reduced.

[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 accompanying drawings.

[0030] 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.

[0031] 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.

[0032] Embodiment 1 of the TP display module of the present utility model

[0033] Please refer to Figure 1-Figure 3 The utility model TP display module includes: a backlight metal frame 1, a main screen FPC 2 and a touch FPC body 3 located on one side of the main screen FPC 2 are arranged on the backlight metal frame 1, a copper foil conductive area 301 is arranged on the touch FPC body 3, and the copper foil conductive area 301 and the touch FPC body 3 are both connected to the backlight metal frame 1. The present application improves the connection stability and strength between the touch FPC body 3 and the backlight metal frame 1 by setting the copper foil conductive area 301, and effectively avoids the problem of tearing or warping of the touch FPC body 3 when subjected to force. This improvement makes the module more reliable during transportation, installation and use, reduces the generation of defective products, and improves the overall quality of the product. The copper foil conductive area 301 is made of copper foil. As a metal conductive material, copper foil usually has good adhesion on its surface. By using copper foil in combination with conductive double-sided tape, the adhesion of the overall connection can be increased and the risk of tearing or warping can be reduced.

[0034] Furthermore, the copper foil conductive area 301 and the touch FPC body 3 are connected to the backlight metal frame 1 through a conductive double-sided adhesive. The conductive double-sided adhesive is a special adhesive with excellent conductive and adhesive properties. The principle is mainly to add a conductive agent to the glue to make the glue conductive. The conductive agent is a key component of the conductive double-sided adhesive, which can form a conductive path to conduct current. When the conductive double-sided adhesive is used to connect electronic components, the conductive agent can contact the surface of the component and form a conductive channel to achieve current transfer between the components. In addition, when the conductive double-sided adhesive is pressed, the contact area between the conductive fillers increases, and the current can flow between the fillers, thereby achieving a conductive effect.

[0035] The conductive double-sided tape makes the copper foil conductive area 301 and the backlight metal frame 1 conductively connected, and the conductivity of the entire path can be easily tested using a test fixture or a multimeter, which helps to find and isolate defective products before leaving the factory, greatly reducing the defective product outflow rate and avoiding customer complaints and returns.

[0036] Copper foil is made of copper and a certain proportion of other metals. It has the characteristic of low surface oxygen and can be attached to various substrates, such as metals, insulating materials, etc. It has a wide temperature range of use. Copper foil is mainly divided into three types: electrolytic copper foil, rolled copper foil and composite copper foil. Among them, electrolytic copper foil has low production cost and technical threshold, and its application scale is large. It is the type of copper foil used in the vast majority of lithium batteries on the market.

[0037] Embodiment 2 of the TP display module of the present utility model

[0038] The TP display module of the present invention further has a TP display screen arranged in the backlight metal frame 1 , a touch FPC body 3 is connected to the TP display screen and a main screen FPC2 , and the TP display screen can be connected to the main screen FPC2 via the touch FPC body 3 .

[0039] Further, such as Figure 1 and Figure 3 As shown, a plurality of PIN pins 201 are provided on the main screen FPC2, and the touch FPC body 3 is welded together with the main screen FPC2 through 201. The electrical connection between the touch FPC body 3 and the PIN pins 201 can be achieved through welding the touch FPC body 3 and the PIN pins 201. This connection method ensures the stability and reliability of signal transmission and simplifies the assembly process.

[0040] Further, such as Figure 1-Figure 2 As shown, a first connecting wire 4 is fixedly connected between the copper foil conductive area 301 and one of the PIN pins 201 .

[0041] Further, such as Figure 1-Figure 3 As shown, the PIN pin 201 connected to the first connecting wire 4 is also connected to the second connecting wire 5, and the second connecting wire 5 extends to the gold finger of the main screen FPC2. Since the copper foil conductive area 301 is connected to the backlight metal frame 1 through the conductive double-sided tape, and the copper foil conductive area 301 is connected to the PIN pin 201 through the first connecting wire 4, and the second connecting wire 5 is also connected to the PIN pin 201, the entire path can be measured using a test fixture or a multimeter conduction file. By setting the first connecting wire 4 and the second connecting wire 5, the signal transmission between the copper foil conductive area 301 and the main screen FPC2 is ensured. This design enables the signal to be transmitted to the target position more stably and quickly, thereby improving the overall response speed and performance of the module. At the same time, the setting of the first connecting wire 4 and the second connecting wire 5 also facilitates the testing and maintenance of the entire path.

[0042] Further, such as Figure 1 As shown, a backlight source is also provided in the backlight metal frame 1, and the backlight source is connected to a backlight FPC6, and the backlight FPC6 is connected to the main screen FPC2. The connection between the backlight source and the main screen FPC2 can be achieved through the backlight FPC6. The introduction of the backlight FPC6 realizes the connection between the backlight source and the main screen FPC2, and provides a stable light source for the TP display screen. This connection method ensures that the backlight source can emit light stably and evenly, and provides a clear and bright display effect for the TP display screen. At the same time, the introduction of the backlight FPC6 also improves the overall integration and reliability of the module.

[0043] Further, such as Figure 1As shown, the backlight metal frame 1 is also provided with a contact 7, and a test fixture or a multimeter conduction gear is used to contact the contact 7 to measure the entire path. During measurement, the test fixture or the multimeter conduction gear can also directly contact the copper foil conductive area 301 for measurement. Through the contact 7 and the test fixture or the multimeter, the electrical performance and connection status of each part of the module can be conveniently and quickly detected. This testing method not only improves the accuracy and reliability of the test, but also reduces the test cost and time.

[0044] Embodiment 3 of the TP display module of the present utility model

[0045] Furthermore, in the TP display module of the present invention, a protective member is connected to a side of the backlight metal frame 1 away from the main screen FPC2, and the protective member is used to cooperate with the backlight metal frame 1 to protect the TP display screen and reduce the damage of the TP display screen by external forces.

[0046] Further, such as Figure 1 As shown, the protective member is a cover plate 8, which is connected to the side of the backlight metal frame 1 away from the main screen FPC2. The TP display screen can be protected by the cooperation between the cover plate 8 and the backlight metal frame 1.

[0047] 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. A TP display module, characterized in that: include: A backlight metal frame (1), wherein a main screen FPC (2) and a touch FPC body (3) located on one side of the main screen FPC (2) are arranged on the backlight metal frame (1), a copper foil conductive area (301) is arranged on the touch FPC body (3), and the copper foil conductive area (301) and the touch FPC body (3) are both connected to the backlight metal frame (1).

2. The TP display module according to claim 1, characterized in that: The copper foil conductive area (301) and the touch FPC body (3) are both connected to the backlight metal frame (1) via a conductive double-sided adhesive.

3. The TP display module according to claim 2, characterized in that: A TP display screen is arranged in the backlight metal frame (1), and the touch FPC body (3) is connected to the TP display screen and the main screen FPC (2).

4. The TP display module according to claim 3, characterized in that: The main screen FPC (2) is provided with a plurality of PIN pins (201), and the touch control FPC body (3) is welded to the main screen FPC (2) via the PIN pins (201).

5. The TP display module according to claim 4, characterized in that: A first connecting wire (4) is fixedly connected between the copper foil conductive area (301) and one of the PIN pins (201).

6. The TP display module according to claim 5, characterized in that: The PIN pin (201) connected to the first connection line (4) is also connected to a second connection line (5), and the second connection line (5) extends to the gold finger of the main screen FPC (2).

7. The TP display module according to claim 6, characterized in that: A backlight source is also provided in the backlight metal frame (1), the backlight source is connected to a backlight FPC (6), and the backlight FPC (6) is connected to the main screen FPC (2).

8. The TP display module according to claim 7, characterized in that: The backlight metal frame (1) is also provided with contacts (7).

9. The TP display module according to claim 8, characterized in that: A protective piece is connected to a side of the backlight metal frame (1) away from the main screen FPC (2), and the protective piece is used to cooperate with the backlight metal frame (1) to protect the TP display screen.

10. The TP display module according to claim 9, characterized in that: The protective member is a cover plate (8), and the cover plate (8) is connected to a surface of the backlight metal frame (1) away from the main screen FPC (2).

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