Alignment structure of display module
By adding bit line to the touch FPC and main FPC of the display module, the plug-in difficulty caused by bit line occlusion in the prior art is solved, and more accurate bit line alignment and higher production efficiency are achieved.
Patent Information
- Application Number
- CN202421458774.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-25
AI Technical Summary
When the existing display module and touch module are electrically connected, the alignment line on the touch FPC is easily blocked, affecting the line of sight and alignment, resulting in difficulty in plugging and inefficient production efficiency.
Add a first pair of bit lines to the upper end of the touch FPC plug, and a second pair of bit lines to the upper end of the main FPC surface to form an aligned straight line to achieve accurate alignment and stable connection between the touch FPC and the main FPC.
Through the design of the bit line, we ensure stable connection between the plug and the socket, improve the accuracy of the bit position, improve production efficiency, and ensure the integrity and standardization of the product.
Smart Images
Figure CN222784873U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of display, in particular to an alignment structure of a display module. Background Art
[0002] Existing display modules or touch modules are generally electrically connected to FPCs through FPCs, which can make full use of the thin and bendable properties of FPCs and effectively reduce the difficulty of connection and layout. At present, the main FPC can be electrically connected to the touch FPC in a variety of ways, that is, a socket is set on the main FPC, and a plug is set on the touch FPC. By plugging the plug into the socket, the main FPC and the touch FPC can be effectively electrically connected.
[0003] At present, the alignment line on the touch FPC is made near the front end of the plug. When the touch FPC plug is connected to the main FPC socket, the fingers can easily block the alignment line on the touch FPC, affecting the line of sight and not conducive to alignment. In addition, the alignment line on the touch FPC is flush with the top of the socket on the main FPC, which is not convenient for observation, making alignment difficult during the plugging process and low production efficiency. Utility Model Content
[0004] In order to solve the deficiencies of the above-mentioned prior art, the utility model provides an alignment structure of a display module, by adding a first alignment line at the upper end of the touch FPC plug, and adding a second alignment line at the main FPC position corresponding to the first alignment line of the touch FPC for aligning the touch FPC and the main FPC, thereby ensuring a stable connection between the plug and the socket, so that each time the touch FPC can be accurately aligned to the main FPC through the alignment line connection, making the alignment more precise, ensuring the operation of each assembly process, ensuring the integrity of the assembled product, improving production efficiency, and further normalization and standardization.
[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0006] A display module alignment structure, comprising:
[0007] Touch FPC, used to connect to the touch screen and has a plug on the surface
[0008] Main FPC, used to connect to the display screen and with a socket on the surface;
[0009] A first pair of bit lines, disposed on a surface of the touch FPC;
[0010] A second pair of bit lines, provided on the surface of the main FPC;
[0011] When the plug of the touch FPC is plugged into the socket of the main FPC, the first pair of bit lines and the second pair of bit lines are aligned to form a straight line.
[0012] As a preferred solution of the alignment structure of the display module provided by the utility model, a touch sensor IC is provided on the surface of the touch FPC.
[0013] As a preferred solution of the alignment structure of the display module provided by the utility model, the first alignment line and the second alignment line are white silk screen ink or copper wire.
[0014] As a preferred solution of the alignment structure of the display module provided by the utility model, the width of the first alignment line and the second alignment line is 0-0.3 mm.
[0015] As a preferred solution of the alignment structure of the display module provided by the utility model, the touch FPC includes a substrate layer, a copper foil circuit layer and a protective film layer stacked in sequence, and the protective film layer has a window area to expose the gold fingers of the copper foil circuit layer to form a gold finger plug.
[0016] As a preferred solution of the alignment structure of the display module provided by the utility model, a reinforcing plate is provided on the back side of the gold finger plug, and a surface treatment layer for improving surface roughness is provided on the outer surface of the reinforcing plate.
[0017] As a preferred solution of the alignment structure of the display module provided by the utility model, the reinforcing plate is made of PI material, and the reinforcing plate and the touch FPC are connected by adhesive.
[0018] As a preferred solution of the alignment structure of the display module provided by the utility model, a QR code laser area is provided on the upper surface of the main FPC, and a black ink layer and a white ink layer provided on the black ink layer are provided on the upper surface of the main FPC located on the QR code laser area, and a QR code is formed on the white ink layer by laser.
[0019] As a preferred solution of the alignment structure of the display module provided by the utility model, the thickness of the black ink layer is 30 μm to 40 μm.
[0020] As a preferred solution of the alignment structure of the display module provided by the utility model, the thickness of the white ink layer is 10 μm to 20 μm.
[0021] The utility model has the following beneficial effects: a display module alignment structure, including a touch FPC, which is used to connect to a touch screen and has a plug on its surface; a main FPC, which is used to connect to a display screen and has a socket on its surface; a first alignment line, which is arranged on the surface of the touch FPC; a second alignment line, which is arranged on the same side of the socket; when the plug of the touch FPC is plugged into the socket of the main FPC, the first alignment line and the second alignment line are aligned to form a straight line. This application adds a first alignment line to the upper surface of the touch FPC and a second alignment line to the upper surface of the main FPC to achieve the plug-in alignment between the touch FPC and the main FPC, thereby ensuring the stable connection between the plug and the socket, so that each time the touch FPC can be accurately aligned to the main FPC through the alignment line connection, making the alignment more accurate, ensuring the operation of each assembly process, ensuring the integrity of the assembled product, improving production efficiency, and further standardization. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the scheme in the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1 A schematic diagram of the alignment structure of the display module provided by the utility model;
[0024] Figure 2 A schematic diagram of a touch FPC of the alignment structure of the display module provided by the utility model;
[0025] Figure 3 A schematic diagram of the main FPC of the alignment structure of the display module provided by the utility model;
[0026] Figure 4 A schematic diagram of a gold finger plug of the alignment structure of the display module provided by the utility model;
[0027] Figure 5 A side view of the gold finger plug of the alignment structure of the display module provided by the utility model;
[0028] Figure 6 This is a schematic diagram of the main FPC two-dimensional code laser area structure of the alignment structure of the display module provided by the utility model.
[0029] 1. Touch FPC; 101. First pair of bit lines; 102. Touch sensor IC; 103. Plug; 104. Reinforcement board; 11. Window area; 2. Main FPC; 201. Second pair of bit lines; 202. Socket; 21. Black ink layer; 22. White ink layer. DETAILED DESCRIPTION
[0030] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.
[0031] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0032] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0033] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0034] Embodiment 1
[0035] like Figure 1-3 As shown, the utility model provides a display module alignment structure, including:
[0036] Touch FPC1, used to connect to the touch screen and has a plug 103 on the surface
[0037] The main FPC 2 is used to connect to the display screen and has a socket 202 on the surface;
[0038] A first pair of bit lines 101, disposed on the surface of the touch FPC1;
[0039] The second alignment line 201 is disposed on the surface of the main FPC2;
[0040] When the plug 103 of the touch FPC 1 is plugged into the socket 202 of the main FPC 2 , the first pair of bit lines 101 and the second pair of bit lines 201 are aligned to form a straight line.
[0041] The first alignment lines 101 and the second alignment lines 201 are made of white silk screen ink.
[0042] Through the above structural design, the white oil lines printed on the touch FPC1 and the main FPC2 are supplied by the FPC manufacturer and can be printed together with the QR code without adding any additional processes. A first alignment line 101 is added to the upper surface of the touch FPC1, and a second alignment line 201 is added to the upper surface of the main FPC2 to achieve the plug-in alignment between the touch FPC1 and the main FPC2, thereby ensuring the stable connection between the plug 103 and the socket 202. In this way, the touch FPC1 can be accurately aligned to the main FPC2 through the alignment line connection each time, making the alignment more precise, ensuring the operation of each assembly process, ensuring the integrity of the assembled products, improving production efficiency, and further normalization.
[0043] In this embodiment, the second pair of bit lines 201 is designed with two segments on the same horizontal position, and the blank area between the two segments corresponds to the touch FPC1. When the plug 103 of the touch FPC1 is plugged into the socket 202 of the main FPC2, the touch FPC1 is overlapped on the blank area between the two end lines of the second pair of bit lines 201.
[0044] The first bit line 101 and the second bit line 201 are located on the same side, that is, the first bit line 101 is located on a side of the touch FPC1 away from the main FPC2, and the second bit line 201 is located on a side of the main FPC2 close to the touch FPC1.
[0045] In another preferred implementation manner of this embodiment, the first alignment wire 101 and the second alignment wire 201 are copper wires. Through the above structural design, the copper wire processing is completed during the FPC etching processing, and no additional steps are added. The FPC can also be accurately aligned.
[0046] Furthermore, a touch sensor IC 102 is disposed on the surface of the touch FPC 1, wherein the touch sensor IC 102 is soldered to the surface of the FPC 1 using SMT technology.
[0047] It should be noted that SMT is surface mount technology, which is an electronic component assembly technology used to solder electronic components directly to the surface of a flexible printed circuit board (FPC) instead of through traditional plug-in assembly. SMT technology is widely used in the electronics manufacturing industry because it can improve production efficiency, reduce circuit board size, reduce costs, and achieve higher density and performance.
[0048] The main steps of SMT are to accurately attach surface mount components such as resistors, capacitors, integrated circuits, etc. to the surface of FPC through automated equipment, and then solder the attached components to the surface of FPC through processes such as reflow soldering or wave soldering to form a reliable connection. Finally, various test equipment is used to detect and verify the welding quality and the accuracy of component installation. The advantages of SMT technology include high density, high reliability, space saving, cost reduction, and improved production efficiency. Therefore, it has become one of the mainstream assembly technologies in the electronics manufacturing industry and is widely used in the manufacturing process of various electronic products.
[0049] Furthermore, the width of the first alignment line 101 and the second alignment line 201 is 0-0.3 mm.
[0050] Embodiment 2
[0051] In this embodiment, Figure 4 and Figure 5 As shown, the touch FPC 1 includes a substrate layer, a copper foil circuit layer and a protective film layer stacked in sequence, and the protective film layer has a window area 11 to expose the gold finger of the copper foil circuit layer to form a gold finger plug.
[0052] Furthermore, a reinforcing plate 104 is provided on the back side of the gold finger plug, and a surface treatment layer for improving the surface roughness is provided on the outer surface of the reinforcing plate 104 so as to make it easier to pull out the FPC and reduce the risk of the FPC circuit being broken.
[0053] Furthermore, the reinforcing plate 104 is made of PI material, and the reinforcing plate 104 is connected to the touch FPC 1 by adhesive. In other embodiments, if the heat generated by the FPC is large, a heat dissipation material with better heat dissipation effect, such as an aluminum foil reinforcing plate 104, can also be used.
[0054] Embodiment 3
[0055] like Figure 6As shown, in this embodiment, a two-dimensional code laser area is provided on the upper surface of the main FPC2, and a black ink layer 21 and a white ink layer 22 provided on the black ink layer 21 are provided on the upper surface of the main FPC2 located on the two-dimensional code laser area, and the white ink layer 22 is formed with a two-dimensional code by laser. Since two layers of ink are provided, the black ink layer 21 and the white ink layer 22, the surface white ink layer 22 is lasered off by laser, exposing the bottom black ink layer 21, and the area where the laser is lasered is displayed as black. The two-dimensional code generated in this way has a good contrast effect and is easy to scan. At the same time, the two-dimensional code will not fall off and be damaged, preventing the two-dimensional code from being invalid, and greatly reducing the labor cost.
[0056] Furthermore, the thickness of the black ink layer 21 is 30 μm to 40 μm. The thickness of the white ink layer 22 is 10 μm to 20 μm. This thickness is the thickness that the commonly used ultraviolet laser can just penetrate, and there is no dust around after the laser irradiation, which has the advantages of high rhythm and efficiency. The reason why the thickness of the lower black ink layer 21 is thicker than the thickness of the upper white ink layer 22 is to avoid laser power energy fluctuations and prevent the black ink layer 21 from being penetrated by the laser and causing damage to the internal layer of the main FPC2.
[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A display module alignment structure, characterized in that: include, A touch FPC (1) is used to connect to a touch screen and has a plug (103) on its surface. A main FPC (2) used for connecting to a display screen and having a socket (202) on its surface; A first pair of bit lines (101) is arranged on the surface of the touch FPC (1); A second pair of bit lines (201) is provided on the surface of the main FPC (2); When the plug (103) of the touch FPC (1) is plugged into the socket (202) of the main FPC (2), the first pair of bit lines (101) and the second pair of bit lines (201) are aligned to form a straight line.
2. The alignment structure of the display module according to claim 1, characterized in that: A touch sensor IC (102) is provided on the surface of the touch FPC (1).
3. The alignment structure of the display module according to claim 1, characterized in that: The first pair of bit lines (101) and the second pair of bit lines (201) are white silk screen ink or copper wires.
4. The alignment structure of the display module according to claim 1, characterized in that: The width of the first alignment line (101) and the second alignment line (201) is 0-0.3 mm.
5. The alignment structure of the display module according to claim 1, characterized in that: The touch FPC (1) comprises a substrate layer, a copper foil circuit layer and a protective film layer which are stacked in sequence, and the protective film layer has a window area (11) to expose the gold finger of the copper foil circuit layer to form a gold finger plug.
6. The alignment structure of the display module according to claim 5, characterized in that: A reinforcing plate (104) is provided on the back side of the gold finger plug, and a surface treatment layer for improving surface roughness is provided on the outer surface of the reinforcing plate (104).
7. The alignment structure of the display module according to claim 6, characterized in that: The reinforcing plate (104) is made of PI material, and the reinforcing plate (104) and the touch FPC (1) are connected by adhesive.
8. The alignment structure of the display module according to claim 1, characterized in that: A two-dimensional code laser area is provided on the upper surface of the main FPC (2), a black ink layer (21) and a white ink layer (22) provided on the black ink layer (21) are provided on the upper surface of the main FPC (2) located on the two-dimensional code laser area, and a two-dimensional code is formed on the white ink layer (22) by laser.
9. The alignment structure of the display module according to claim 8, characterized in that: The thickness of the black ink layer (21) is 30 μm to 40 μm.
10. The alignment structure of the display module according to claim 8, characterized in that: The thickness of the white ink layer (22) is 10 μm to 20 μm.