Integrated touch display module for improving FPC (Flexible Printed Circuit) connection stability

Abstract

The utility model discloses an integrated touch display module for improving the connection stability of an FPC (Flexible Printed Circuit), which comprises an upper glass substrate and a lower glass substrate which are mutually attached, and one end of the lower glass substrate extends to the outer side of the upper glass substrate and is provided with a single-layer area. The single-layer area on the lower glass substrate is provided with a binding position, and the single-layer area is bound and connected with an FPC through the binding position; the FPC is provided with a fluorination liquid, one side of the fluorination liquid is also provided with a UV adhesive, and under the combined action of the fluorination liquid and the UV adhesive, the binding position of the FPC and the binding position is covered and protected. According to the integrated touch display module capable of improving the connection stability of the FPC, the fluorinated liquid is additionally arranged at the binding position of a conventional FPC, water seepage at the edge of the FPC can be effectively prevented through high hydrophobicity and sealing performance of the fluorinated liquid, the sealing effect at the binding position of the FPC is further improved through cooperation of the fluorinated liquid and the UV glue, and the service life of the FPC is prolonged. And the stability of the display module is better.

Description

Technical Field

[0001] This utility model relates to the field of FPC technology, and in particular to an integrated touch display module that improves the stability of FPC connections. Background Technology

[0002] Flexible printed circuit boards (FPCBs), also known as "flexible boards," are printed circuits made from flexible insulating substrates. Flexible circuits offer excellent electrical performance, meeting the design needs for smaller and higher-density installations, and also help reduce assembly steps and enhance reliability. FPCBs are the only solution for meeting the miniaturization and mobility requirements of electronic products. They can be freely bent, rolled, and folded, withstand millions of dynamic bends without damaging the wires, can be arranged arbitrarily according to spatial layout requirements, and can move and stretch freely in three-dimensional space, thereby achieving integration of component assembly and wire connection.

[0003] As per the instruction manual Figure 8 As shown, this is a common integrated touch display module structure. After the display screen FPC1-1 is bonded, UV adhesive 1-3 is applied to the edge of the lower glass 1-2 for protection. Due to the poor fluidity of UV adhesive 1-3, there will be gaps between the edge of FPC1-1 and UV adhesive 1-3. After the client machine performs the double 85 test, if there are gaps between the UV adhesive 1-3 on the display screen and the shape of FPC1-1, moisture will seep into the FPC bonding area through the gaps, causing short circuits in the FPC circuits and affecting the use of the product. Therefore, an integrated touch display module that improves the stability of FPC connection is proposed. Utility Model Content

[0004] Therefore, it is necessary to provide an integrated touch display module that improves the stability of FPC connection to address the above-mentioned technical problems. Fluoride is added to the conventional FPC bonding location. In this way, the high hydrophobicity and sealing properties of the fluoride can effectively prevent water seepage from the FPC edges.

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

[0006] An integrated touch display module for improving FPC connection stability includes an upper glass substrate and a lower glass substrate that are bonded together. One end of the lower glass substrate extends outward from the upper glass substrate and has a single-layer region. The single-layer region on the lower glass substrate has a bonding position, and the single-layer region is bonded to the FPC through the bonding position.

[0007] The FPC is provided with a fluorinated liquid, and a UV adhesive is also provided on one side of the fluorinated liquid. The fluorinated liquid and the UV adhesive work together to cover and protect the bonding area between the FPC and the bonding position.

[0008] Furthermore, the UV adhesive is applied to the single-layer area and covers the connection between the FPC and the bonding position.

[0009] Furthermore, the fluorinated liquid is sprayed onto the surface of the UV adhesive at the location corresponding to the FPC.

[0010] Furthermore, the edge of the fluorinated liquid extends beyond the periphery of the connection between the FPC and the bonding position.

[0011] Furthermore, the fluorinated liquid is sprayed onto the connection between the FPC and the bonding position.

[0012] Furthermore, the edge of the fluorinated liquid extends beyond the periphery of the connection between the FPC and the bonding position.

[0013] Furthermore, the UV adhesive covers the surface of the fluorinated liquid, and the UV adhesive extends outward to the edge of the monolayer region.

[0014] Furthermore, an IC is also provided on the single-layer region, and the UV adhesive and fluorinated liquid are both kept in the airtight space on the surface of the IC.

[0015] Furthermore, an upper polarizer and a lower polarizer are respectively attached to the outer sides of the upper glass substrate and the lower glass substrate;

[0016] The outer side of the upper polarizer is connected to a cover plate by adhesive, and the outer side of the lower polarizer is fitted with a backlight.

[0017] Furthermore, the edge of the cover plate is provided with silicone sealant for connection with the edge of the single-layer area.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The integrated touch display module provided by this utility model improves the stability of FPC connection by adding fluorinated liquid at the conventional FPC bonding position. Through the high hydrophobicity and sealing properties of the fluorinated liquid itself, water seepage at the FPC edge can be effectively prevented. In addition, its combination with UV adhesive further improves the sealing effect at the FPC bonding position, making the display module more stable.

[0020] First, apply UV adhesive, then spray fluorinated liquid onto the FPC bonding area. This allows the fluorinated liquid to further fill and seal any areas not completely sealed by the UV adhesive, effectively preventing water seepage at the FPC edges.

[0021] Alternatively, fluorinated liquid can be sprayed first, which can effectively cover and seal the edges of the FPC. After applying UV adhesive, the fluorinated liquid layer can be covered and protected, and the sealing effect at the edges of the FPC can be further enhanced. Attached Figure Description

[0022] Figure 1 A schematic diagram of the integrated touch display module for improving FPC connection stability provided by this utility model;

[0023] Figure 2 A schematic diagram of the structure of the UV adhesive in Embodiment 2 of the integrated touch display module for improving FPC connection stability provided by this utility model;

[0024] Figure 3 A schematic diagram of the internal fluorinated liquid in Embodiment 2 of the integrated touch display module for improving FPC connection stability provided by this utility model;

[0025] Figure 4 A side view of the inner module structure of the integrated touch display module provided in Embodiment 2 for improving the stability of FPC connection according to this utility model;

[0026] Figure 5 A schematic diagram of the internal fluorinated liquid in Embodiment 3 of the integrated touch display module for improving FPC connection stability provided by this utility model;

[0027] Figure 6 A schematic diagram of the structure of the UV adhesive in Embodiment 3 of the integrated touch display module for improving FPC connection stability provided by this utility model;

[0028] Figure 7 A side view of the inner module structure of Embodiment 3 of the integrated touch display module for improving FPC connection stability provided by this utility model;

[0029] Figure 8 A schematic diagram of the FPC sealing structure of the conventional integrated touch display module provided by this utility model.

[0030] The markings in the diagram are explained as follows:

[0031] 1. Upper glass substrate, 11. Upper polarizer, 12. Adhesive, 13. Cover plate, 14. Silicone sealant;

[0032] 2. Lower glass substrate, 21. Single-layer area, 22. Bonding position, 23. Lower polarizer, 24. Backlight;

[0033] FPC3, 31;

[0034] Fluorinated liquid 4;

[0035] UV adhesive 5;

[0036] IC6. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0038] As described in the background art, as per the appendix to the specification. Figure 8 As shown, this is a common integrated touch display module structure. After the display screen FPC1-1 is bonded, UV adhesive 1-3 is applied to the edge of the lower glass 1-2 for protection. Due to the poor fluidity of UV adhesive 1-3, there will be gaps between the edge of FPC1-1 and UV adhesive 1-3. After the client performs the double 85 test on the whole machine, if there are gaps between the UV adhesive 1-3 on the display screen and the shape of FPC1-1, moisture will seep into the FPC bonding area through the gaps, causing short circuits in the FPC circuits and affecting the use of the product.

[0039] To address this technical problem, this invention provides an integrated touch display module that improves the stability of FPC connections, which is applied to FPCs.

[0040] For details, please refer to Figures 1-8 The integrated touch display module for improving FPC connection stability specifically includes an upper glass substrate 1 and a lower glass substrate 2 that are bonded together. One end of the lower glass substrate 2 extends outward from the upper glass substrate 1 and has a single-layer region 21. The single-layer region 21 on the lower glass substrate 2 has a binding position 22, and the single-layer region 21 is bonded to the FPC 3 through the binding position 22.

[0041] The FPC3 is provided with fluorinated liquid 4, and UV adhesive 5 is also provided on one side of the fluorinated liquid 4. The fluorinated liquid 4 and UV adhesive 5 work together to cover and protect the bonding area between the FPC3 and the bonding position 22.

[0042] The integrated touch display module provided by this utility model improves the stability of FPC connection by adding fluorinated liquid 4 at the conventional FPC3 bonding position. Through the high hydrophobicity and sealing properties of the fluorinated liquid 4 itself, water seepage at the edge of FPC3 can be effectively prevented. In addition, it works with UV adhesive 5 to further improve the sealing effect at the FPC3 bonding position, making the display module more stable.

[0043] 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.

[0044] 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.

[0045] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0046] Example 1

[0047] Please refer to Figures 1-6 An integrated touch display module for improving FPC connection stability includes an upper glass substrate 1 and a lower glass substrate 2 that are bonded together. One end of the lower glass substrate 2 extends outward from the upper glass substrate 1 and has a single-layer region 21. The single-layer region 21 on the lower glass substrate 2 has a bonding position 22, and the single-layer region 21 is bonded to an FPC 3 through the bonding position 22.

[0048] The FPC3 is provided with fluorinated liquid 4, and UV adhesive 5 is also provided on one side of the fluorinated liquid 4. The fluorinated liquid 4 and UV adhesive 5 work together to cover and protect the bonding area between the FPC3 and the bonding position 22.

[0049] In this embodiment, a fluorinated liquid 4 is added at the conventional FPC3 bonding position. The high hydrophobicity and sealing properties of the fluorinated liquid 4 can effectively prevent water seepage from the edges of the FPC3. Furthermore, its combination with the UV adhesive 5 further improves the sealing effect at the FPC3 bonding position, resulting in better stability of the display module.

[0050] Example 2

[0051] The integrated touch display module for improving FPC connection stability provided in Embodiment 1 is further optimized, specifically, as follows: Figure 2 , Figure 3 and Figure 4 As shown, the UV adhesive 5 is applied to the single-layer area 21 and covers the connection between the FPC3 and the bonding position 22;

[0052] The fluorinated liquid 4 is sprayed onto the surface of the UV adhesive 5 at the position corresponding to FPC3;

[0053] In this embodiment, the specific steps are as follows: Figure 2 As shown, the FPC3 is first bound to the binding position 22 on the single layer area 21, and then the UV adhesive 5 is applied to the single layer area 21. During the application process, the UV adhesive 5 will cover the edge of the FPC3 and the surface of the FPC3. After the UV adhesive 5 is cured, the edge of the FPC3 can be initially covered and sealed.

[0054] After UV adhesive 5 is cured and polished, fluorinated liquid 4 is sprayed onto its surface. Fluorinated liquid 4 is sprayed onto the surface and edges of FPC3, such as... Figure 3 As shown, the fluorinated liquid 4 can be used to perform a secondary seal on the area where the UV adhesive 5 does not completely cover the edge of the FPC3, thus ensuring the sealing effect at the edge of the FPC3.

[0055] The edge of the fluorinated liquid 4 extends beyond the periphery of the connection between the FPC3 and the bonding position 22. Through the design of the size of the fluorinated liquid 4, the fluorinated liquid 4 can completely cover the surface of the FPC3, thereby effectively covering its edge. In some cases, when the edge of the fluorinated liquid 4 fails, since the connection between the FPC3 and the bonding position 22 is located inside the entire fluorinated liquid 4 layer, the fluorinated liquid 4 near the connection can still effectively protect the connection between the FPC3 and the bonding position 22.

[0056] Example 3

[0057] The integrated touch display module for improving FPC connection stability provided in Embodiment 1 is further optimized. The difference between this embodiment and Embodiment 2 is that the order of applying fluorinated liquid 4 and UV adhesive 5 is adjusted, as follows:

[0058] The fluorinated liquid 4 is sprayed at the connection between the FPC3 and the binding position 22;

[0059] The edge of the fluorinated liquid 4 extends beyond the periphery of the connection between FPC3 and binding position 22;

[0060] The UV adhesive 5 covers the surface of the fluorinated liquid 4, and the UV adhesive 5 extends outward to the edge of the single-layer region 21.

[0061] like Figure 5 and Figure 6 and Figure 7 As shown, after the FPC3 is bound to the single-layer area 21 by the binding position 22, the fluorinated liquid 4 is sprayed on the FPC3 and the connection with the binding position 22. The spraying of the fluorinated liquid 4 will completely cover the area of ​​the FPC3 on the single-layer area 21 and will extend beyond the edge of the FPC3, so that the connection with the binding position 22 can be completely sealed.

[0062] Then, after the fluorinated liquid 4 solidifies to form a seal at the edge of FPC3, UV adhesive 5 is applied to its surface. When applying UV adhesive 5, it is necessary to cover the surface of the single-layer area 21. During the covering process, it will also cover the surface of FPC3 and the connection between FPC3 and the bonding position 22. This can cooperate with the fluorinated liquid 4 to form a secondary protection for FPC2.

[0063] By placing the UV adhesive 5 on the outside of the fluorinated liquid 4 in this embodiment, the UV adhesive 5 can protect the fluorinated liquid 4 through its own characteristics, thereby ensuring the sealing effect of the fluorinated liquid 4 on the edge of the FPC3.

[0064] The specific sealing sequence used in Embodiment 2 or Embodiment 3 depends on the size of the FPC3, the size of the binding position 22, and the specific application environment. This application does not impose a single limitation.

[0065] Example 4

[0066] The integrated touch display module for improving FPC connection stability provided in Embodiment 3 has been further optimized, such as... Figures 1-7 The single-layer region 21 shown is further provided with IC6, and the UV adhesive 5 and fluorinated liquid 4 are both isolated from the surface of IC6;

[0067] In the above embodiments, whether it is covering with UV adhesive 5 or dotting with fluorinated liquid 4, it is necessary to avoid the position area of ​​IC6, that is, the surface of IC6 does not need to be covered with UV adhesive 5 or fluorinated liquid 4.

[0068] An upper polarizer 11 and a lower polarizer 23 are respectively attached to the outer sides of the upper glass substrate 1 and the lower glass substrate 2. The outer side of the upper polarizer 11 is connected to a cover plate 13 by an adhesive 12, and the outer side of the lower polarizer 23 is provided with a backlight 24.

[0069] The edge of the cover plate 13 is provided with silicone sealant 14 for connection with the edge of the single-layer area 21.

[0070] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0071] 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 display module for improving FPC connection stability, comprising an upper glass substrate (1) and a lower glass substrate (2) bonded together, wherein one end of the lower glass substrate (2) extends outward from the upper glass substrate (1) and has a single-layer region (21), characterized in that, The single-layer region (21) on the lower glass substrate (2) has a bonding position (22), and the single-layer region (21) is bonded to the FPC (3) through the bonding position (22). The FPC (3) is provided with fluorinated liquid (4), and UV adhesive (5) is also provided on one side of the fluorinated liquid (4). The fluorinated liquid (4) and UV adhesive (5) work together to cover and protect the bonding area between the FPC (3) and the bonding position (22).

2. The integrated touch display module for improving FPC connection stability according to claim 1, characterized in that, The UV adhesive (5) is applied to the single-layer area (21) and covers the connection between the FPC (3) and the bonding position (22).

3. The integrated touch display module for improving FPC connection stability according to claim 2, characterized in that, The fluorinated liquid (4) is sprayed onto the surface of the UV adhesive (5) at the position corresponding to the FPC (3).

4. The integrated touch display module for improving FPC connection stability according to claim 3, characterized in that, The edge of the fluorinated liquid (4) extends beyond the periphery of the connection between the FPC (3) and the binding position (22).

5. The integrated touch display module for improving FPC connection stability according to claim 1, characterized in that, The fluorinated liquid (4) is sprayed at the connection between the FPC (3) and the bonding position (22).

6. The integrated touch display module for improving FPC connection stability according to claim 5, characterized in that, The edge of the fluorinated liquid (4) extends beyond the periphery of the connection between the FPC (3) and the binding position (22).

7. The integrated touch display module for improving FPC connection stability according to claim 6, characterized in that, The UV adhesive (5) covers the surface of the fluorinated liquid (4) and extends outward to the edge of the monolayer region (21).

8. The integrated touch display module for improving FPC connection stability according to claim 1, characterized in that, An IC (6) is also provided on the single-layer area (21), and the UV adhesive (5) and fluorinated liquid (4) are both suspended on the surface of the IC (6).

9. The integrated touch display module for improving FPC connection stability according to claim 1, characterized in that, The upper glass substrate (1) and the lower glass substrate (2) are respectively attached to the outer side of the upper polarizer (11) and the lower polarizer (23). The outer side of the upper polarizer (11) is connected to a cover plate (13) by adhesive (12), and the outer side of the lower polarizer (23) is fitted with a backlight (24).

10. The integrated touch display module for improving FPC connection stability according to claim 9, characterized in that, The edge of the cover plate (13) is provided with silicone sealant (14) for connection with the edge of the single-layer area (21).

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