Integrated touch module structure

Abstract

The embodiment of the utility model belongs to the technical field of touch modules. The utility model further relates to an integrated touch module structure which comprises the TFT glass assembly, a grounding point body is arranged at the non-visual-area bottom of the TFT glass assembly, and a silver paste body connected with the grounding point body is arranged at the corner of the non-visual-area bottom of the TFT glass assembly. The silver paste main body is arranged at the corner of the TFT glass assembly, so that the silver paste main body is coated towards the outer side direction of the appearance of the TFT glass assembly, the distance between the silver paste main body and a visual area is increased, the situation that the TFT glass assembly is close to the visual area is effectively reduced, the problem of poor appearance caused by corrosion bubbles is reduced, and the service life of the TFT glass assembly is prolonged. And the condition that static electricity enters is reduced.

Description

Technical Field

[0001] This utility model relates to the field of touch module technology, and more specifically, to an integrated touch module structure. Background Technology

[0002] Currently, the upper surface of the TFT glass in conventional mobile phone integrated touch modules is covered with a shielding ITO layer. In order to improve the anti-static capability of TFT, a high-impedance layer polarizer (AS polarizer) is used for the upper polarizer. Then, silver paste is applied to contact the PSA adhesive layer on the upper polarizer and connected to the grounding point on the lower glass to conduct away static electricity.

[0003] Existing silver paste structures such as Figure 5 As shown, the silver paste is located directly below the visible area of ​​the glass, close to the glass's surface. Due to the solvent components in the conductive silver paste, it will fuse with the PSA adhesive on the upper polarizer, generating corrosion bubbles at a certain distance. Since the silver paste is too close to the visible area of ​​the glass, these corrosion bubbles will be visible, resulting in poor appearance. Furthermore, the close proximity of the silver paste to the glass edge makes it easy for static electricity to enter, damaging the silver paste lines and glass traces, leading to screen flickering. Therefore, we have improved upon this by proposing an integrated touch module structure. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is that when the silver paste is too close to the visible area of ​​the glass, corrosion bubbles will be visible, resulting in poor appearance, and static electricity is easily introduced.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An integrated touch module structure includes: a TFT glass assembly, wherein a grounding point body is provided at the bottom of the non-viewing area of ​​the TFT glass assembly, and a silver paste body connected to the grounding point body is provided at the corner of the bottom of the non-viewing area of ​​the TFT glass assembly.

[0007] As an improvement of this utility model, the TFT glass assembly includes an upper polarizer body, an upper glass is disposed on the back side of the upper polarizer body, a lower glass is connected to the back side of the upper glass, and a lower polarizer is connected to the back side of the lower glass.

[0008] As an improvement of this utility model, the grounding point body is disposed on the lower glass, and the silver paste body is connected between the upper glass and the grounding point body.

[0009] As an improvement of this utility model, a first groove is provided at the corner of the upper polarizer body, and the part of the silver paste body that connects to the upper polarizer body is located in the first groove.

[0010] As an improvement of this utility model, the side of the upper polarizer body away from the upper glass is connected to OCA optical adhesive, and the side of the OCA optical adhesive away from the upper polarizer body is connected to a cover plate.

[0011] As an improvement of this utility model, a second groove is formed on the OCA optical adhesive, and the position of the second groove corresponds to the position of the first groove.

[0012] As an improvement of this utility model, the size of the second groove is larger than the size of the first groove.

[0013] As an improvement of this utility model, a connector is also provided on the lower glass.

[0014] As an improvement of this utility model, the connector includes a driver IC, which is bonded to the lower glass.

[0015] As an improvement of this utility model, the connector further includes a main screen FPC, which is bound to the lower glass.

[0016] Compared with the prior art, the embodiments of this utility model have the following main advantages:

[0017] To address the problem in existing technologies where silver paste is too close to the visible area of ​​the glass, resulting in visible corrosion bubbles, poor appearance, and easy static electricity ingress, this application addresses this issue by placing the silver paste substrate at the corners of the TFT glass assembly. This increases the distance between the silver paste substrate and the viewing area, effectively reducing the proximity of the TFT glass assembly to the viewing area. Consequently, it reduces appearance defects caused by corrosion bubbles and minimizes static electricity ingress. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the integrated touch module structure provided in this application;

[0019] Figure 2 A schematic diagram of the lower glass and OCA optical adhesive of the integrated touch module structure provided in this application;

[0020] Figure 3 The integrated touch module structure provided in this application Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 A schematic diagram of the first groove in the integrated touch module structure provided in this application;

[0022] Figure 5 This is a structural diagram of an existing integrated touch module.

[0023] The image shows:

[0024] 1. Lower glass; 2. Grounding point body; 3. Upper glass; 4. Upper polarizer body; 5. First groove; 6. Silver paste body; 7. OCA optical adhesive; 8. Second groove; 9. Cover plate; 10. Driver IC; 11. Main screen FPC. Detailed Implementation

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The reference herein to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] As described in the background section, existing silver paste structures, such as Figure 5 As shown, the silver paste is located directly below the visible area of ​​the glass, close to the visible area of ​​the glass. Due to the solvent components contained in the conductive silver paste, it will fuse with the PSA adhesive on the upper polarizer, generating corrosion bubbles at a certain distance. If the silver paste is too close to the visible area of ​​the glass, corrosion bubbles will be visible, resulting in poor appearance. In addition, the close distance between the silver paste and the edge of the glass makes it easy for static electricity to enter, damaging the silver paste lines and glass traces, resulting in screen defects.

[0027] To solve this technical problem, this utility model provides an integrated touch module structure.

[0028] For details, please refer to Figures 1-4 The integrated touch module structure specifically includes:

[0029] The TFT glass assembly has a grounding point body 2 at the bottom of the non-viewing area and a silver paste body 6 connected to the grounding point body 2 at the corner of the bottom of the non-viewing area.

[0030] The integrated touch module structure provided by this utility model, by placing the silver paste body 6 at the corner of the TFT glass assembly, so that the silver paste body 6 is coated towards the outer side of the TFT glass assembly, increases the distance between the silver paste body 6 and the viewing area, effectively reduces the situation where the TFT glass assembly is close to the viewing area, thereby reducing the appearance defects caused by corrosion bubbles, and reducing the situation of static electricity ingress.

[0031] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0033] 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, it does not need to be further defined or explained in subsequent drawings.

[0034] Embodiment 1 of the integrated touch module structure of this utility model

[0035] Please refer to Figures 1-4 The integrated touch module structure of this utility model includes: a TFT glass assembly, a grounding point body 2 is provided at the bottom of the non-viewing area of ​​the TFT glass assembly, and a silver paste body 6 connected to the grounding point body 2 is provided at the corner of the bottom of the non-viewing area of ​​the TFT glass assembly. By setting the silver paste body 6 at the corner of the TFT glass assembly, the silver paste body 6 is coated towards the outer side of the TFT glass assembly, which increases the distance between the silver paste body 6 and the viewing area, effectively reducing the situation where the TFT glass assembly is close to the viewing area, thereby reducing the appearance defects caused by corrosion bubbles, and reducing the situation of static electricity ingress.

[0036] Placing the silver paste body 6 at the corners avoids the formation of bubbles due to corrosion during production, which can affect the appearance of the product. In the manufacturing process of touch modules, silver paste close to the viewing area is prone to chemical reactions and gas generation under certain chemical environments or high temperature and humidity conditions, which can lead to corrosion bubbles. These bubbles can damage the integrity of the product's appearance, affecting its aesthetics and market acceptance. At the same time, it reduces the risk of static electricity intrusion and improves the electrical stability of the product. Static electricity is ubiquitous during the operation of electronic devices. If the silver paste is close to the viewing area and poorly grounded, static electricity can easily intrude into the internal circuitry of the touch module, interfering with the transmission and processing of touch signals, which may lead to touch misoperation, display abnormalities, and other problems. Placing the silver paste away from the viewing area can effectively reduce this risk.

[0037] Furthermore, such as Figures 2-4As shown, the TFT glass assembly includes an upper polarizer body 4, an upper glass 3 on the back of the upper polarizer body 4, a lower glass 1 connected to the back of the upper glass 3, and a lower polarizer connected to the back of the lower glass 1. The upper polarizer body 4 can polarize light, filtering light in specific directions and reducing stray light interference, thereby improving the contrast and color saturation of the displayed image and allowing users to clearly see the screen content in different lighting environments. The upper glass 3 and the lower glass 1 provide the basic carrier for the touch function. They have good flatness and mechanical strength, can withstand the pressure during touch operation, and provide a stable support structure for internal circuits and optical components. The lower polarizer further cooperates with the upper polarizer in light processing, working together to further optimize the polarization effect of light and ensure that the light maintains stable optical characteristics when passing through the entire touch module, so that the touch module can accurately respond to touch operations and present good visual effects in different lighting environments.

[0038] Furthermore, such as Figure 2 and Figure 3 As shown, the grounding point body 2 is set on the lower glass 1, and the silver paste body 6 is connected between the upper glass 3 and the grounding point body 2. In electronic circuits, grounding is one of the key links to ensure the normal operation of the circuit. The grounding point body 2 is set on the lower glass 1 to provide a stable potential reference for the entire touch module. The silver paste body 6 connects the upper glass 3 and the grounding point body 2 to form a low-impedance current path. When static electricity or other stray currents are generated, they can be conducted to the ground through this path to avoid the current running around inside the module, thereby reducing interference to touch signals, display signals, etc., providing a stable current loop, avoiding electromagnetic interference and other problems caused by poor grounding, ensuring the normal operation of the touch module, and improving the reliability and stability of the product.

[0039] Embodiment 2 of the integrated touch module structure of this utility model

[0040] Further, the integrated touch module structure of this utility model is as follows: Figures 2-3As shown, a first groove 5 is provided at the corner of the upper polarizer body 4, and the part of the silver paste body 6 that connects to the upper polarizer body 4 is located in the first groove 5. The design of the first groove 5 not only increases the conductive area to ensure good electrical connection performance, but also reduces the length of the silver paste, thereby saving material costs. From the perspective of electrical connection, the silver paste contacts the PSA adhesive on both sides of the first groove 5, forming a larger conductive interface, which allows the current to be conducted more evenly and stably between the silver paste and the upper polarizer body 4, effectively reducing contact resistance and ensuring the accuracy and timeliness of touch signal transmission. Without affecting the function of the touch module, the production cost is reduced and the economic efficiency of the product is improved. This is because the increase in the conductive area can compensate for the impact of the reduction in the length of the silver paste, ensuring that the electrical performance of the touch module is not damaged. The reduction in the amount of silver paste used directly reduces the consumption of raw materials. For large-scale production, this can significantly reduce material procurement costs and improve the economic benefits of the enterprise.

[0041] Furthermore, such as Figures 1-2 As shown, the side of the upper polarizer body 4 away from the upper glass 3 is connected to OCA optical adhesive 7, and the side of the OCA optical adhesive 7 away from the upper polarizer body 4 is connected to a cover plate 9. The connecting effect of the OCA optical adhesive 7 makes the upper polarizer body 4 and the cover plate 9 tightly bonded, which can effectively reduce air gaps and improve light transmittance, thereby improving the display clarity of the touch module. The OCA optical adhesive 7 has the characteristics of high transparency and low refractive index. During the bonding process, it can fill the tiny gap between the upper polarizer body 4 and the cover plate 9, so that the light transmission between the two reduces refraction and reflection loss. Since the refractive index difference between air and optical materials is large, air gaps will cause light to scatter and reflect at the interface, reducing the utilization rate of light and the display brightness of the screen. The presence of OCA optical adhesive 7 allows light to pass through the touch module more directly and efficiently, improving the image clarity and color vibrancy, and providing users with a better visual experience.

[0042] Furthermore, such as Figure 3 and Figure 4 As shown, a second groove 8 is provided on the OCA optical adhesive 7. The position of the second groove 8 corresponds to the position of the first groove 5. The setting of the second groove 8 allows the OCA optical adhesive 7 to avoid the silver paste body 6, reducing the problem of air bubbles caused by the OCA optical adhesive 7 covering the silver paste body 6, and improving the bonding quality and stability of the product.

[0043] Furthermore, the size of the second groove 8 is larger than that of the first groove 5. The larger second groove 8 can better avoid the silver paste body 6, further reducing the possibility of OCA optical adhesive 7 covering the silver paste and improving the product yield. In actual production, due to the limitation of process precision, there may be certain deviations in the size and position of each component. The larger second groove 8 can provide a larger tolerance space, thereby reducing the number of defective products caused by process problems, improving production efficiency and product quality stability, and reducing production costs and after-sales risks.

[0044] Embodiment 3 of the integrated touch module structure of this utility model

[0045] Furthermore, the lower glass 1 of this utility model integrates a touch module structure with a connector. The connector facilitates the connection of the touch module with external devices or other components, enabling signal transmission and functional expansion. This allows the touch module to be better integrated into the entire electronic device system. In modern electronic devices, the touch module often needs to work in conjunction with multiple components such as the motherboard, display screen, and battery. The connector, as a bridge for interaction between the touch module and the outside world, can transmit the touch signals generated by the touch module to the motherboard for processing, and at the same time receive instructions and data from the motherboard, such as update information of the displayed content.

[0046] Furthermore, such as Figure 2 As shown, the connector includes a driver IC 10, which is bonded to the lower glass 1. The driver IC 10 can process and control the touch signals of the touch module, enabling it to accurately respond to touch operations and convert the signals into corresponding instructions, thereby improving the touch accuracy and response speed of the touch module. When a user performs a touch operation on the surface of the touch module, the touch panel will generate weak electrical signal changes. These signals are first transmitted to the driver IC 10. The driver IC 10 can perform a series of processing on these raw signals, such as amplification, filtering, and digitization, to remove noise interference, accurately identify the position, force, gesture, and other information of the touch point, and convert this information into an instruction format that the device can understand, and then transmit it to the motherboard or other control unit.

[0047] Furthermore, such as Figure 2As shown, the connector also includes a driver main screen FPC11, which is bound to the lower glass 1. The driver main screen FPC11 can achieve flexible connection with the main screen and other components, facilitating signal transmission under different spatial layouts. This improves the flexibility of the touch module's internal layout. Inside electronic devices, the layout is often complex due to the different shapes, sizes, and functional requirements of various components. The driver main screen FPC11 adopts a flexible circuit board design, which has the characteristics of being bendable and thin. It can be freely bent and folded in a narrow space to adapt to different installation paths and layout requirements. This flexible connection method allows the touch module to be arranged more flexibly during the device design process, providing strong support for the miniaturization and lightweight design of products. It also facilitates the assembly and maintenance of the device and reduces production and maintenance costs.

[0048] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An integrated touch module structure, characterized in that, include: A TFT glass assembly, wherein a grounding point body (2) is provided at the bottom of the non-viewing area of ​​the TFT glass assembly, and a silver paste body (6) connected to the grounding point body (2) is provided at the corner of the bottom of the non-viewing area of ​​the TFT glass assembly.

2. The integrated touch module structure according to claim 1, characterized in that, The TFT glass assembly includes an upper polarizer body (4), an upper glass (3) is disposed on the back side of the upper polarizer body (4), a lower glass (1) is connected to the back side of the upper glass (3), and a lower polarizer is connected to the back side of the lower glass (1).

3. The integrated touch module structure according to claim 2, characterized in that, The grounding point body (2) is set on the lower glass (1), and the silver paste body (6) is connected between the upper glass (3) and the grounding point body (2).

4. The integrated touch module structure according to claim 3, characterized in that, The upper polarizer body (4) has a first groove (5) at its corner, and the part of the silver paste body (6) connected to the upper polarizer body (4) is located in the first groove (5).

5. The integrated touch module structure according to claim 4, characterized in that, The side of the upper polarizer body (4) away from the upper glass (3) is connected to OCA optical adhesive (7), and the side of the OCA optical adhesive (7) away from the upper polarizer body (4) is connected to a cover plate (9).

6. The integrated touch module structure according to claim 5, characterized in that, The OCA optical adhesive (7) has a second groove (8) which corresponds to the position of the first groove (5).

7. The integrated touch module structure according to claim 6, characterized in that, The size of the second groove (8) is larger than the size of the first groove (5).

8. The integrated touch module structure according to claim 2, characterized in that, A connector is also provided on the lower glass (1).

9. The integrated touch module structure according to claim 8, characterized in that, The connector includes a driver IC (10) which is attached to the lower glass (1).

10. The integrated touch module structure according to claim 8 or 9, characterized in that, The connector also includes a drive main screen FPC (11), which is attached to the lower glass (1).

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