Anti-missing detection FOG binding structure of mobile phone display module

Abstract

The utility model discloses an anti-missing detection FOG binding structure of a mobile phone display module, comprising an array substrate and an FPC board, the edge of the FPC board is provided with a detection area and a golden finger, the golden finger is in binding connection with the array substrate, the golden finger is located in the detection area, and an identification coating is sprayed on the detection area. After the array substrate and the FPC board are bound through the FOG process, as the recognition coating is the nano-polymer coating, the nano-coating is composed of a large number of nano-particles microcosmically, gaps among the nano-particles are extremely small, water molecules cannot pass through the nano-particles, a waterproof effect is achieved, meanwhile, acid-base resistance and corrosion resistance can be achieved, and the recognition coating can be used for recognizing the array substrate and the FPC board. And improvement of the trafficability of artificial sweat and salt spray tests is also facilitated.

Description

Technical Field

[0001] The utility model relates to a mobile phone display module, more specifically, to a FOG binding structure of a mobile phone display module for preventing leakage detection. Background Art

[0002] After the FPC of the mobile phone display module is bound to the array substrate through the FOG process, the part of its gold finger that exceeds the array substrate is exposed. In order to protect this part of the exposed gold finger, the current practice is to use UV glue. However, the thickness of UV glue is difficult to control, which will cause the glue to be too thick, affecting bending and causing structural interference. Moreover, the UV glue itself is transparent, and it is difficult for employees to identify whether the glue completely covers the gold finger, which is prone to the risk of missed inspection. In addition, UV glue has a certain degree of water permeability and is not completely waterproof.

[0003] Chinese utility model patent document CN219435319U discloses a touch screen FOG binding position structure, the binding structure includes an anisotropic conductive film, an FPC board, a silicone pad and a binding head stacked on the touch screen glass; wherein the width of the binding head is 0.3-0.5 mm less than the width of the binding position. The thickness of the FPC board is 100-120 um. The FPC board includes a PI layer, which is a polyimide resin layer. The thickness of the PI layer is 30 um. The binding head is a rectangular strip structure, and one side of the binding head is provided with two parallel rectangular strip-shaped snap-in grooves, which are used to snap-in and fix the silicone pad. Two snap-in bodies are provided on one side of the silicone pad close to the lower end face of the binding head, and the snap-in bodies can be snapped into the snap-in grooves. The width of the snap-in groove is 1.2 mm and the depth is 1.5 mm. The width of the silicone pad is 0.5-1.5 mm greater than the width of the lower end face of the binding head. The anisotropic conductive film is a three-layer structure. The touch screen glass is DITO glass.

[0004] Obviously, in the patented FOG binding structure, the width of the binding head is 0.3-0.5mm smaller than the width of the binding position, which effectively solves the problem of anisotropic conductive film (ACF) stacking due to the height difference of the PI layer during binding. However, this structure cannot solve the problem of easy leakage of existing UV glue.

[0005] Chinese utility model patent document CN208207435U discloses a FOG binding position protection structure of a liquid crystal display screen, including a chip binding position protection film layer, a flexible circuit board binding position protection film layer and a binding position connection protection film layer; the chip binding position protection film layer covers the surface of the chip; the flexible circuit board binding position protection film layer covers the surface of the binding position of the flexible circuit board; the binding position connection protection film layer connects the chip binding position protection film layer with the flexible circuit board binding position protection film layer, and surrounds the binding position of the chip and the binding position of the flexible circuit board; the chip binding position protection film layer, the flexible circuit board binding position protection film layer and the binding position connection protection film layer are all dense fluorinated liquid film layers. The composition of the fluorinated liquid includes 10wt% fluorine resin and 90wt% non-flammable fluorine solvent. The chip binding position protection film layer, the flexible circuit board binding position protection film layer and the binding position connection protection film layer are integrated film layers. The thickness of the chip binding position protection film layer and the flexible circuit board binding position protection film layer is less than or equal to 3μm. The thickness of the chip binding position protection film layer and the flexible circuit board binding position protection film layer is 2-3 μm. The binding position connection protection film layer is also connected to the liquid crystal screen glass of the liquid crystal display screen.

[0006] Obviously, the patent uses a thin layer of fluorinated liquid to replace the protective glue. Based on the advantages of fluorinated liquid with strong wear resistance, strong flexibility, fast natural curing time, moisture and rust resistance, and extremely thin thickness, it is conducive to better protection of IC, FPC and surrounding metal traces; at the same time, using a thin layer of fluorinated liquid to replace the protective glue can effectively save costs. However, this structure cannot solve the problem that the existing UV glue is easy to miss. Utility Model Content

[0007] Based on this, it is necessary to provide a FOG binding structure of a mobile phone display module that prevents leakage detection in order to solve the above technical problems. The FOG binding structure of the mobile phone display module that prevents leakage detection includes an array substrate and an FPC board. The edge of the FPC board is provided with a detection area and a gold finger. The gold finger is bound and connected to the array substrate. The gold finger is located in the detection area. The detection area is sprayed with an identification coating. After the array substrate and the FPC board are bound by the FOG process, since the identification coating is a nano-polymer coating, the nano-coating is composed of a large number of nano-particles at the microscopic level. The gaps between the nano-particles are extremely small, and water molecules cannot pass through. It has a water-isolating effect. At the same time, it is also resistant to acid and alkali, and corrosion, which is also helpful for improving the passability of artificial sweat and salt spray tests.

[0008] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0009] A FOG binding structure of a mobile phone display module for preventing leakage detection, characterized in that the FOG binding structure of the mobile phone display module for preventing leakage detection comprises an array substrate and an FPC board,

[0010] The edge of the FPC board is provided with a detection area and a gold finger, the gold finger is bound and connected with the array substrate, the gold finger is located in the detection area, and an identification coating is sprayed on the detection area.

[0011] As a preferred implementation of the FOG binding structure of the mobile phone display module for preventing leakage detection provided by the utility model, the identification coating is rectangular, and the width of the identification coating is greater than the length of the gold finger.

[0012] As a preferred implementation of the FOG binding structure of the anti-leakage detection mobile phone display module provided by the utility model, the identification coating is a nano polymer coating.

[0013] As a preferred implementation of the FOG binding structure of the anti-leakage detection mobile phone display module provided by the utility model, a fluorescent agent is provided in the identification coating.

[0014] As a preferred implementation of the FOG binding structure of the anti-leakage detection mobile phone display module provided by the utility model, the thickness of the identification coating is 1 micron to 3 microns.

[0015] As a preferred implementation of the FOG binding structure of the anti-leakage detection mobile phone display module provided by the utility model, the thickness of the identification coating is 2 microns.

[0016] As a preferred implementation of the FOG binding structure of the anti-missing detection mobile phone display module provided by the utility model, both ends of the identification coating are provided with avoidance identification circles.

[0017] As a preferred implementation of the FOG binding structure of the mobile phone display module for preventing missed detection provided by the utility model, the diameter of the avoidance identification circle is greater than the length of the gold finger.

[0018] As a preferred implementation of the FOG binding structure of the anti-missing detection mobile phone display module provided by the utility model, avoidance identification arrows are provided at both ends of the identification coating.

[0019] As a preferred implementation of the FOG binding structure of the mobile phone display module for preventing missed detection provided by the utility model, the avoidance identification arrow faces the gold finger.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] The utility model provides a FOG binding structure of a mobile phone display module for preventing leakage detection. After the array substrate and the FPC board are bound by the FOG process, since the identification coating is a nano polymer coating, the nano coating is composed of a large number of nano particles at the microscopic level, and the gaps between the nano particles are extremely small, water molecules cannot pass through, and it has a water-isolating effect. At the same time, it is also resistant to acid and alkali and corrosion, and is also helpful for improving the passability of artificial sweat and salt spray tests.

[0022] In addition, the identification coating may be provided with a fluorescent agent. The thickness of the identification coating is 1 micron to 3 microns. Preferably, the thickness of the identification coating is 2 microns. Since the identification coating is provided with a fluorescent agent, when employees conduct visual inspections and need to determine whether the nano polymer coating is completely coated on the protected part, they can determine by fluorescent irradiation, which is convenient, simple and reliable to operate. Since the thickness of the identification coating is extremely thin, it will not cause structural interference.

[0023] In addition, both ends of the identification coating can be provided with avoidance identification circles. The diameter of the avoidance identification circle is greater than the length of the gold finger. By using the avoidance identification circles at both ends of the identification coating, when employees conduct visual inspections, they can quickly identify the positions of the two side edges of the identification coating through the avoidance identification circles, thereby further facilitating identification.

[0024] In addition, avoidance identification arrows can be provided at both ends of the identification coating. The avoidance identification arrows face the gold finger. By using the avoidance identification arrows, when employees conduct visual inspections, they can quickly identify the position and orientation of the two side edges of the identification coating through the avoidance identification arrows, thereby further facilitating identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 It is a structural schematic diagram of the FOG binding structure of the mobile phone display module for preventing leakage detection of the utility model;

[0027] Figure 2 for Figure 1 A detailed enlarged schematic diagram of the A area of ​​the FOG binding structure of the mobile phone display module for preventing missed detection;

[0028] Figure 3 It is a three-dimensional structural schematic diagram of another embodiment of the FOG binding structure of the mobile phone display module for preventing leakage detection of the utility model;

[0029] Figure 4 A three-dimensional structural schematic diagram of another embodiment of the FOG binding structure of the mobile phone display module for preventing leakage detection of the utility model;

[0030] The markings in the figure are as follows: 1. array substrate; 2. FPC board; 20. gold finger; 21. detection area; 3. identification coating; 31. avoidance identification circle; 32. avoidance identification arrow. DETAILED DESCRIPTION

[0031] 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.

[0032] As described in the background technology, for mobile phone display modules, after the FPC of the mobile phone display module is bound to the array substrate through the FOG process, the part of the gold finger that exceeds the array substrate is exposed. In order to protect this part of the exposed gold finger, the current practice is to use UV glue. However, the thickness of UV glue is difficult to control, which may cause the glue to be too thick, affecting bending and causing structural interference. Moreover, the UV glue itself is transparent, and it is difficult for employees to identify whether the glue completely covers the gold finger, which is prone to the risk of missed inspection. In addition, UV glue has a certain degree of water permeability and is not completely waterproof.

[0033] In order to solve this technical problem, the utility model provides a FOG binding structure of a mobile phone display module to prevent missed detection, comprising an array substrate 1 and an FPC board 2. The edge of the FPC board 2 is provided with a detection area 21 and a gold finger 20, the gold finger 20 is bound and connected to the array substrate 1, the gold finger 20 is located in the detection area 21, and the detection area 21 is sprayed with an identification coating 3.

[0034] The identification coating 3 is rectangular, and the width of the identification coating 3 is greater than the length of the gold finger 20. The identification coating 3 is a nano polymer coating.

[0035] Through the above structural design, after the array substrate 1 and the FPC board 2 are bound by the FOG process, since the identification coating 3 is a nano-polymer coating, the nano-coating is composed of a large number of nano-particles at the microscopic level. The gaps between the nano-particles are extremely small, and water molecules cannot pass through. It has a water-isolating effect. At the same time, it is also resistant to acid and alkali, and corrosion, which is also helpful for improving the passability of artificial sweat and salt spray tests.

[0036] In order 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 described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0037] 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.

[0038] 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.

[0039] Example 1

[0040] like Figure 1 and Figure 2 As shown, the FOG binding structure of the anti-missing detection mobile phone display module includes an array substrate 1 and an FPC board 2.

[0041] The edge of the FPC board 2 is provided with a detection area 21 and a gold finger 20 . The gold finger 20 is bound and connected to the array substrate 1 . The gold finger 20 is located in the detection area 21 . An identification coating 3 is sprayed on the detection area 21 .

[0042] It should be noted that the identification coating 3 is rectangular, and the width of the identification coating 3 is greater than the length of the gold finger 20 .

[0043] In addition, the identification coating 3 is a nano polymer coating.

[0044] The working mode of this embodiment is described below.

[0045] After the array substrate 1 and the FPC board 2 are bound by the FOG process, since the identification coating 3 is a nano-polymer coating, the nano-coating is composed of a large number of nano-particles at the microscopic level. The gaps between the nano-particles are extremely small, and water molecules cannot pass through. It has a water-isolating effect. At the same time, it is also resistant to acid and alkali and corrosion, which is also helpful for improving the passability of artificial sweat and salt spray tests.

[0046] Example 2

[0047] The FOG binding structure of the anti-missing detection mobile phone display module provided in Example 1 is further optimized. Specifically, a fluorescent agent is provided in the identification coating 3 .

[0048] It should be noted that the thickness of the identification coating 3 is 1 micrometer to 3 micrometers. Preferably, the thickness of the identification coating 3 is 2 micrometers.

[0049] The working mode of this embodiment is described below.

[0050] Since the identification coating 3 is provided with a fluorescent agent, when the employee conducts visual inspection, if the employee needs to determine whether the nano polymer coating is completely coated on the protected part, the determination can be made by fluorescent irradiation, which is convenient, simple and reliable to operate. Since the thickness of the identification coating 3 is extremely thin, it will not cause structural interference.

[0051] Example 3

[0052] like Figure 3 As shown, the FOG binding structure of the anti-missing detection mobile phone display module provided in Example 1 or 2 is further optimized. Specifically, both ends of the identification coating 3 are provided with avoidance identification circles 31.

[0053] It should be noted that the diameter of the avoidance identification circle 31 is greater than the length of the golden finger 20 .

[0054] The working mode of this embodiment is described below.

[0055] By using the avoidance identification circles 31 at both ends of the identification coating 3, when employees conduct visual inspection, they can quickly identify the positions of the two side edges of the identification coating 3 through the avoidance identification circles 31, thereby further facilitating identification.

[0056] Example 4

[0057] like Figure 4 As shown, the FOG binding structure of the anti-missing detection mobile phone display module provided in Example 1 or 2 is further optimized. Specifically, both ends of the identification coating 3 are provided with avoidance identification arrows 32.

[0058] It should be noted that the avoidance identification arrow 32 is directed toward the golden finger 20 .

[0059] The working mode of this embodiment is described below.

[0060] By utilizing the avoidance identification arrow 32 , when an employee performs visual inspection, the position and orientation of the two side edges of the identification coating 3 can be quickly identified by avoiding the identification arrow 32 , thereby further facilitating identification.

[0061] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0062] 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.

[0063] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application 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 present application more thorough and comprehensive. Although the present application 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 specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A FOG binding structure for mobile phone display module to prevent missed detection. It is characterized in that The FOG binding structure of the anti-leakage detection mobile phone display module comprises an array substrate (1) and an FPC board (2), the edge of the FPC board (2) is provided with a detection area (21) and a gold finger (20), the gold finger (20) is bound and connected to the array substrate (1), the gold finger (20) is located in the detection area (21), and the detection area (21) is sprayed with an identification coating (3).

2. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 1, It is characterized in that The identification coating (3) is rectangular, and the width of the identification coating (3) is greater than the length of the gold finger (20).

3. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 1, It is characterized in that The identification coating (3) is a nano polymer coating.

4. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 2, It is characterized in that The identification coating (3) is provided with a fluorescent agent.

5. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 1, It is characterized in that The thickness of the identification coating (3) is 1 micrometer to 3 micrometers.

6. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 4, It is characterized in that The thickness of the identification coating (3) is 2 micrometers.

7. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 1, It is characterized in that Both ends of the identification coating (3) are provided with avoidance identification circles (31).

8. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 7, It is characterized in that The diameter of the avoidance identification circle (31) is greater than the length of the golden finger (20).

9. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 1, It is characterized in that Both ends of the identification coating (3) are provided with avoidance identification arrows (32).

10. The FOG binding structure of the mobile phone display module for preventing leakage detection according to claim 9, It is characterized in that The avoidance identification arrow (32) points toward the golden finger (20).

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