FPC bending protection structure of display screen module

Abstract

The utility model discloses an FPC (Flexible Printed Circuit) bending protection structure of a display screen module, which comprises a display module, a backlight frame and a display FPC, the display module is fixedly connected inside the backlight frame, the front surface of the backlight frame is provided with a convex hull, a through hole is arranged between the upper side and the lower side of the convex hull, and the display FPC is arranged in the through hole. The display FPC comprises a mounting part, a bending part and a connector which are connected in sequence, and one end of the mounting part is connected with the display module. According to the FPC bending protection structure of the display screen module, the groove is formed in the backlight frame, and the convex hull is formed by the metal plate, so that the convex hull structure of the backlight frame is similar to a barrier strip, when the display FPC is excessively bent and pulled, the barrier strip formed by the convex hull can bear the bending pulling force, the display FPC cannot be damaged or separated from the first double-faced adhesive tape, and the display FPC is prevented from being damaged. Meanwhile, the upper edge and the lower edge of the convex hull need to be reversely folded to form arcs, so that the iron sheet is prevented from scratching the display FPC, and the bending pulling force is better borne.

Description

Technical Field

[0001] This utility model relates to the field of display device technology, and in particular to an FPC bending protection structure for a display module. Background Technology

[0002] With the rapid development of the electronics industry and information technology, displays, as important components of electronic products, are increasingly used in more and more products, and the manufacturing industry has also developed rapidly. They are widely used in products such as mobile phones, digital cameras, and automotive displays. Display modules have advantages such as light weight, thinness, and low power consumption. The liquid crystal display panel in the display module itself does not emit light and requires a backlight to provide a light source so that viewers can see the image displayed on the liquid crystal display panel.

[0003] Existing display module FPCs all need to be bent to the back of the module, such as Figure 1 As shown, the FPC113 is usually fixed with double-sided tape 112 on the backlight bracket 111. When the display module is assembled into the housing, the connector of the FPC113 needs to be held and inserted into the motherboard of the housing. This process requires bending and pulling the FPC113. If the pulling force is too great, the FPC113 can easily separate from the double-sided tape 112 or the FPC113 can be torn at the corner, causing defects. Utility Model Content

[0004] Based on this, it is necessary to provide a bending protection structure for the FPC of the display module to address the above-mentioned technical problems. This structure involves slotting the backlight frame and forming a protrusion in sheet metal. The height of the protrusion is 0.8-1.2mm. The protrusion has a U-shaped structure and a through hole between it and the backlight frame, allowing the bent portion of the display FPC to pass through the through hole. In this way, the protrusion structure of the backlight frame acts like a baffle. When the display FPC is excessively bent and stretched, the baffle can withstand the bending force, preventing damage to the display FPC or separation from the first double-sided adhesive. At the same time, the upper and lower sides of the protrusion need to be folded back to form an arc, thereby preventing the iron sheet from scratching the display FPC and better bearing the bending force.

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

[0006] A bending protection structure for a display module FPC includes:

[0007] The display module comprises a backlight frame and a display FPC. The display module is fixedly connected inside the backlight frame. The front of the backlight frame has a protrusion, and a through hole is formed between the upper and lower sides of the protrusion. The display FPC includes a mounting part, a bending part, and a connector connected in sequence. One end of the mounting part is connected to the display module, and the other end of the mounting part is fixedly connected to the backlight frame by a first double-sided adhesive. The bending part is located inside the through hole to prevent the display FPC from tearing or separating from the first double-sided adhesive when excessively stretched.

[0008] Furthermore, the through hole protrudes 0.8-1.2mm from the surface of the backlight frame and forms a baffle structure, and the through hole is formed by a convex bulge protruding from the surface of the backlight frame.

[0009] Furthermore, the upper and lower sides of the convex bulge are provided with arcs, which are used to prevent scratches on the display FPC.

[0010] Furthermore, the backlight frame is formed with an elongated hole communicating with the through hole through a convex hull, and the elongated hole is larger than the width of the display FPC.

[0011] Furthermore, the backlight frame is an iron frame, the convex bulge, through hole and elongated hole are integrally formed by sheet metal of the backlight frame, and the arc is formed by reverse folding of the convex bulge.

[0012] Furthermore, the backlight frame is made of plastic, and the convex bulge, through hole, and arc are integrally injection molded from the backlight frame.

[0013] Furthermore, the size between the elongated hole and the inner wall of the back side of the convex bulge is larger than the size of the connector.

[0014] Furthermore, the convex hull has a U-shaped structure and fixed blocks are fixedly connected to both ends. The fixed blocks are fixedly connected to the backlight frame by glue.

[0015] Furthermore, the bent portion is fixedly connected to the inner wall of the convex bulge by a second double-sided adhesive.

[0016] Furthermore, a soft pad is installed inside the elongated hole, with one end of the soft pad contacting the display module and the other end of the soft pad contacting the bent portion.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The FPC bending protection structure for the display module provided by this utility model first fixes the display FPC to the backlight frame with a first double-sided adhesive, then fixes the display FPC to the protrusion with a second double-sided adhesive, then installs a soft pad inside the elongated hole, and finally fixes the protrusion to the backlight frame with glue. Because the soft pad has a certain degree of elasticity, it not only fixes the part more firmly, but also prevents the bending part from moving and reduces friction during bending. At the same time, the protrusion can be processed separately, and no sheet metal processing is required when the backlight frame is an iron frame, making installation very convenient.

[0019] The FPC bending protection structure for the display module provided by this utility model involves slotting the backlight frame and forming a protrusion in sheet metal. The height of the protrusion is 0.8-1.2mm. At this time, the protrusion has a U-shaped structure and a through hole is formed between it and the backlight frame, which facilitates the bending part on the display FPC to pass through the through hole on the protrusion. In this way, the protrusion structure of the backlight frame is similar to a baffle. When the display FPC is excessively bent and pulled, the baffle formed by this protrusion can bear the bending and pulling force, preventing the display FPC from being damaged or separated from the first double-sided adhesive. At the same time, the upper and lower sides of the protrusion need to be folded back to form an arc, thereby preventing the iron sheet from scratching the display FPC and better bearing the bending and pulling force. Attached Figure Description

[0020] Figure 1 A schematic diagram of the FPC bending structure of an existing display module;

[0021] Figure 2 A front view schematic diagram of the FPC bending protection structure for the display module provided by this utility model;

[0022] Figure 3 A three-dimensional schematic diagram of the FPC bending protection structure for the display module provided by this utility model;

[0023] Figure 4 A schematic diagram showing the convex bulge of the FPC bending protection structure of the display module provided by this utility model being fixed with glue;

[0024] Figure 5 This is a schematic diagram illustrating how the FPC bending protection structure of the display module provided by this utility model limits the movement of the display FPC.

[0025] The markings in the diagram are explained as follows:

[0026] 1. Display module; 2. Backlight frame; 3. Convex bulge; 4. Through hole; 5. Display FPC; 6. First double-sided adhesive; 7. Fixing block; 8. Adhesive; 9. Second double-sided adhesive; 10. Soft pad; 301. Arc; 401. Elongated hole; 501. Mounting part; 502. Bending part; 503. Connector. Detailed Implementation

[0027] 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.

[0028] As described in the background section, existing display modules' FPCs are typically fixed with double-sided tape. When assembling the display module into the housing, the FPC's connectors need to be held and inserted into the housing's motherboard. This process requires bending and pulling the FPC. If the pulling force is too great, the FPC can easily separate from the double-sided tape or tear at the corners, causing problems.

[0029] To solve this technical problem, this utility model provides a bending protection structure for an FPC of a display module. By slotting the backlight frame 2 and forming a protrusion 3 by sheet metal, the height of the protrusion 3 is 0.8-1.2mm. At this time, the protrusion 3 has a U-shaped structure and a through hole 4 is formed between it and the backlight frame 2, so that the bending part 502 on the display FPC5 can pass through the through hole 4 on the protrusion 3. In this way, the structure of the protrusion 3 of the backlight frame 2 is similar to a baffle. When the display FPC5 is excessively bent and pulled, the baffle formed by this protrusion 3 can bear the bending and pulling force, preventing the display FPC5 from being damaged or separated from the first double-sided adhesive 6. At the same time, the upper and lower sides of the protrusion 3 need to be folded back to form an arc 301, thereby preventing the iron sheet from scratching the display FPC5 and better bearing the bending and pulling force.

[0030] For details, please refer to Figure 2-3 The FPC bending protection structure of the display module specifically includes:

[0031] Display module 1 and backlight frame 2. Display module 1 is fixedly connected inside backlight frame 2. A protrusion 3 is provided on the front of backlight frame 2. A through hole 4 is provided between the upper and lower sides of the protrusion 3.

[0032] The display FPC5 includes a mounting part 501, a bending part 502, and a connector 503 connected in sequence. The mounting part 501 is provided with a component area for placing peripheral circuit components. The bending part 502 will not damage the component area when it is bent. The connector 503 can connect to the outside for communication. One end of the mounting part 501 is connected to the display module 1, and the other end of the mounting part 501 is fixedly connected to the backlight frame 2 by the first double-sided adhesive 6. The bending part 502 is located inside the through hole 4 to prevent the display FPC5 from tearing or separating from the first double-sided adhesive 6 when it is stretched excessively.

[0033] The FPC bending protection structure for the display module provided by this utility model involves slotting the backlight frame 2 and forming a protrusion 3 by sheet metal. The height of the protrusion 3 is 0.8-1.2mm. At this time, the protrusion 3 has a U-shaped structure and a through hole 4 is formed between it and the backlight frame 2, so that the bending part 502 on the display FPC5 can pass through the through hole 4 on the protrusion 3. In this way, the structure of the protrusion 3 of the backlight frame 2 is similar to a baffle. When the display FPC5 is excessively bent and pulled, the baffle formed by this protrusion 3 can bear the bending and pulling force, preventing the display FPC5 from being damaged or separated from the first double-sided adhesive 6. At the same time, the upper and lower sides of the protrusion 3 need to be folded back to form an arc 301, thereby preventing the iron sheet from scratching the display FPC5 and better bearing the bending and pulling force.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] Please refer to Figure 2-3 An FPC bending protection structure for a display module includes a display module 1 and a backlight frame 2. The display module 1 is fixedly connected inside the backlight frame 2. A protrusion 3 is provided on the front side of the backlight frame 2, and a through hole 4 is provided between the upper and lower sides of the protrusion 3.

[0038] The display FPC5 includes a mounting part 501, a bending part 502, and a connector 503 connected in sequence. The mounting part 501 is provided with a component area for placing peripheral circuit components. The bending part 502 will not damage the component area when it is bent. The connector 503 can connect to the outside for communication. One end of the mounting part 501 is connected to the display module 1, and the other end of the mounting part 501 is fixedly connected to the backlight frame 2 by the first double-sided adhesive 6. The bending part 502 is located inside the through hole 4 to prevent the display FPC5 from tearing or separating from the first double-sided adhesive 6 when it is stretched excessively.

[0039] Please refer to Figure 2-3By slotting the backlight frame 2 and forming a protrusion 3 by sheet metal, the height of the protrusion 3 is 0.8-1.2mm. At this time, the protrusion 3 has a U-shaped structure and a through hole 4 is formed between it and the backlight frame 2, so that the bending part 502 on the display FPC5 can pass through the through hole 4 on the protrusion 3. In this way, the structure of the protrusion 3 of the backlight frame 2 is similar to a baffle. When the display FPC5 is excessively bent and pulled, the baffle formed by this protrusion 3 can bear the bending and pulling force, and will not damage the display FPC5 or separate it from the first double-sided adhesive 6.

[0040] The FPC bending protection structure of the display module provided in Embodiment 1 is further optimized. Specifically, the through hole 4 protrudes 1mm from the surface of the backlight frame 2 and forms a baffle structure. The through hole 4 is formed by the protrusion 3 protruding from the surface of the backlight frame 2, such as... Figure 3 As shown, in order to reduce the stress concentration when the bending part 502 is bent, arcs 301 are provided on both the upper and lower sides of the convex bulge 3. This can increase the curvature of the bending part 502 when it is bent, and at the same time increase the contact area of ​​the force-bearing part, reducing the stress concentration when the bending part 502 is bent, and greatly reducing the problem of the bending part 502 being easily damaged when bent. Thus, the arcs 301 are used to prevent scratches on the display FPC5.

[0041] like Figure 2 and Figure 3 As shown, the backlight frame 2 has an elongated hole 401 that communicates with the through hole 4 through the convex hull 3. The elongated hole 401 is larger than the width of the display FPC5, which makes it easier for the display FPC5 to pass through the through hole 4 and the elongated hole 401. The baffle formed by the convex hull 3 can withstand the bending tensile force.

[0042] The backlight frame 2 is an iron frame. The protrusion 3, through hole 4 and elongated hole 401 are integrally formed by sheet metal of the backlight frame 2. The arc 301 is formed by the reverse folding edge of the protrusion 3.

[0043] The FPC bending protection structure of the display module provided in Embodiment 1 or 2 is further optimized. The backlight frame 2 is made of plastic, and the convex bulge 3, through hole 4 and arc 301 are integrally injection molded from the backlight frame 2.

[0044] In this way, the entire convex 3, through hole 4 and arc 301 are very easy to process. When in use, you only need to pass the bent part 502 on the display FPC5 through the through hole 4 on the convex 3. In this way, the convex 3 structure of this backlight frame 2 is similar to a baffle. When the display FPC5 is excessively bent and pulled, the baffle formed by this convex 3 can bear the bending and pulling force, and will not damage the display FPC5 or separate it from the first double-sided adhesive 6.

[0045] The FPC bending protection structure of the display module provided in the above embodiments is further optimized. Since the connector 503 is relatively large in the entire display FPC 5, for example... Figure 3As shown, the size between the elongated hole 401 and the inner wall of the back side of the protrusion 3 is larger than the size of the connector 503;

[0046] like Figure 4 As shown, in order to facilitate the processing of the protrusion 3 and to make it easier for the bending part 502 to be located in the through hole 4, the protrusion 3 has a U-shaped structure and fixed blocks 7 are fixedly connected to both ends. The fixed blocks 7 are fixedly connected to the backlight frame 2 by glue 8. In this way, when the backlight frame 2 is an iron frame, there is no need to perform sheet metal processing. When processing the protrusion 3 separately, plastic material can be used. The bending part 502 is fixedly connected to the inner wall of the protrusion 3 by the second double-sided adhesive 9. In this way, the bending part 502 can be fixed and avoid friction with the protrusion 3.

[0047] like Figure 5 As shown, in order to better fix the bent part 502, a soft pad 10 is installed inside the elongated hole 401. One end of the soft pad 10 contacts the display module 1, and the other end of the soft pad 10 contacts the bent part 502.

[0048] In use, the display FPC5 is first fixed to the backlight frame 2 using the first double-sided adhesive 6. Then, the display FPC5 is fixed to the protrusion 3 using the second double-sided adhesive 9. Next, the soft pad 10 is installed inside the elongated hole 401. Finally, the protrusion 3 is fixed to the backlight frame 2 using glue 8. Because the soft pad 10 has a certain degree of elasticity, it not only fixes the device more firmly but also prevents the bending part 502 from moving, reducing friction during bending. At the same time, the protrusion 3 can be processed separately, and when the backlight frame 2 is an iron frame, no sheet metal processing is required, making installation very convenient.

[0049] The usage process of the FPC bending protection structure for the display module provided by this utility model is as follows:

[0050] By slotting the backlight frame 2 and forming a protrusion 3 by sheet metal, the height of the protrusion 3 is 0.8-1.2mm. At this time, the protrusion 3 has a U-shaped structure and a through hole 4 is formed between it and the backlight frame 2, so that the bent part 502 on the display FPC5 can pass through the through hole 4 on the protrusion 3. In this way, the structure of the protrusion 3 of the backlight frame 2 is similar to a baffle. When the display FPC5 is excessively bent and stretched, the baffle formed by this protrusion 3 can bear the bending and stretching force, so as not to damage the display FPC5 or separate it from the first double-sided adhesive 6. At the same time, the upper and lower sides of the protrusion 3 need to be folded back to form an arc 301, so as to prevent the iron sheet from scratching the display FPC5 and better bear the bending and stretching force.

[0051] 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.

[0052] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention 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 invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the present invention specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the present invention patent.

Claims

1. A bending protection structure for an FPC display module, characterized in that, It includes: The display module (1) and the backlight frame (2) are fixedly connected inside the backlight frame (2). The front of the backlight frame (2) is provided with a protrusion (3), and a through hole (4) is provided between the upper and lower sides of the protrusion (3). The display FPC (5) includes a mounting part (501), a bending part (502) and a connector (503) connected in sequence. One end of the mounting part (501) is connected to the display module (1), and the other end of the mounting part (501) is fixedly connected to the backlight frame (2) by a first double-sided adhesive (6). The bending part (502) is located inside the through hole (4) to prevent the display FPC (5) from tearing or separating from the first double-sided adhesive (6) when stretched excessively.

2. The FPC bending protection structure for the display module according to claim 1, characterized in that, The through hole (4) protrudes 0.8-1.2 mm from the surface of the backlight frame (2) and forms a baffle structure. The through hole (4) is formed by the protrusion (3) protruding from the surface of the backlight frame (2).

3. The FPC bending protection structure for the display module according to claim 2, characterized in that, The upper and lower sides of the convex bulge (3) are provided with arcs (301), which are used to prevent scratches on the display FPC (5).

4. The FPC bending protection structure for the display module according to claim 3, characterized in that, The backlight frame (2) has an elongated hole (401) that communicates with the through hole (4) through the convex hull (3), and the elongated hole (401) is larger than the width of the display FPC (5).

5. The FPC bending protection structure for the display module according to claim 4, characterized in that, The backlight frame (2) is an iron frame. The convex bulge (3), through hole (4) and elongated hole (401) are integrally formed by sheet metal of the backlight frame (2). The arc (301) is formed by reverse folding of the convex bulge (3).

6. The FPC bending protection structure for the display module according to claim 3, characterized in that, The backlight frame (2) is made of plastic, and the convex bulge (3), through hole (4) and arc (301) are integrally injection molded from the backlight frame (2).

7. The FPC bending protection structure for the display module according to claim 4, characterized in that, The size between the elongated hole (401) and the inner wall of the back side of the convex bulge (3) is larger than the size of the connector (503).

8. The FPC bending protection structure for the display module according to claim 7, characterized in that, The convex bulge (3) has a U-shaped structure and fixed blocks (7) are fixedly connected to both ends. The fixed blocks (7) are fixedly connected to the backlight frame (2) by glue (8).

9. The FPC bending protection structure for the display module according to claim 8, characterized in that, The bent portion (502) is fixedly connected to the inner wall of the convex bulge (3) by a second double-sided adhesive (9).

10. The FPC bending protection structure for the display module according to claim 9, characterized in that, A soft pad (10) is installed inside the elongated hole (401). One end of the soft pad (10) is in contact with the display module (1), and the other end of the soft pad (10) is in contact with the bent part (502).

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