Display module for enhancing FPC (Flexible Printed Circuit) strength

Abstract

The utility model discloses a display module for enhancing FPC strength, the display module comprises a display part and a flexible plate part connected with the display part, the flexible plate part comprises a main body part, a bending part and a connecting part, the connecting part is connected with the display part, and the bending part is connected with the main body part. The connecting part, the bending part and the main body part are sequentially arranged from one side close to the display part to one side far away from the display part; the bending part is provided with a hollowed-out area, the surface of the bending part is provided with a reinforcing piece, the reinforcing piece is arranged at the edge of the hollowed-out area, the surface smoothness can be kept through the reinforcing piece, so that after the hollowed-out area is formed, the bending part is not influenced when being used, and specifically, after the FPC bending part is subjected to the hollowed-out cutting process and is put into ACF binding, the bending part is not influenced when being used. And a poor binding deviation function caused by poor flatness of the FPC is avoided. The reinforcer at the edge of the hollowed-out area can enhance the strength of the FPC and prevent the FPC from being torn.

Description

Technical Field

[0001] The utility model relates to the field of display modules, and in particular to a display module with enhanced FPC strength. Background Art

[0002] Traditional LCD display modules usually bind IC and FPC on the array substrate. Before binding the FPC, the FPC binding position needs to be set on the upper surface of the array substrate. MARK marks are set on the left and right sides of the FPC binding position. Positioning marks corresponding to the MARK marks are also set on the FPC. When binding the FPC, the machine is used to identify and locate the MARK mark and the positioning mark for binding.

[0003] For example, in the prior art, there is a patent document with application number CN202222089301.9, which discloses a display module that is easy to detect the binding effect. Since the left and right sides of the second binding position are provided with horizontally arranged MARK marks, and the FPC is provided with positioning marks corresponding to the MARK marks, the FPC can be bound by machine identification of the positioning MARK marks and the positioning marks when binding the FPC, and alignment marks are provided on the upper and lower sides of each MARK mark. When it is necessary to detect whether the binding of the FPC meets the requirements, it is only necessary to conventionally magnify the back of the array substrate to view the position of the positioning mark. When the positioning mark is located between the two alignment marks, it can be determined that the offset of the FPC is within a reasonable range. When the positioning mark overlaps with one of the alignment marks or is outside one of the alignment marks, it can be determined that the offset of the FPC is out of range. It does not need to use a measuring tool to measure whether the relevant dimensions meet the requirements. The operation is relatively simple, which improves the production efficiency of the display module, greatly reduces the production and manufacturing costs of the display module, and improves the product competitiveness of the display module, thereby meeting the growing quality requirements of enterprises.

[0004] However, the technical solutions provided in the above patent documents still have limitations in actual use, because as the resolution of the display module increases, the number of driver ICs required to match the display module will increase accordingly. High-resolution display modules with two Source ICs generally use a single-chip FPC + one-time ACF binding solution, which results in a relatively long binding position. At this time, the corresponding binding position size of the FPC is relatively large. In order to facilitate assembly, the non-wiring area of ​​the FPC in the bending area needs to be hollowed out. However, after the FPC is hollowed out, the flatness of the FPC at the binding position will deteriorate (this is because there is a hollowed-out area), and the PIN pin is likely to be offset during ACF binding, resulting in poor function and material loss. Utility Model Content

[0005] Based on this, it is necessary to provide a display module with enhanced FPC strength to address the above technical issues.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] A display module for strengthening the strength of an FPC, the display module includes a display part and a flexible board part connected to the display part, the flexible board part includes a main body part, a bending part and a connecting part, the connecting part is connected to the display part, and the connecting part, the bending part and the main body part are arranged in sequence from the side close to the display part to the side far from the display part;

[0008] A hollowed-out area is provided on the bending part, and a reinforcing member for maintaining the surface flatness is provided on the surface of the bending part, and the reinforcing member is arranged at the edge of the hollowed-out area.

[0009] Further, a silk screen frame is arranged outside the hollowed-out area, and the silk screen frame is used for assisting in cutting and positioning.

[0010] Further, the length dimension and width dimension of the reinforcing member are at least greater than 1 / 2 of the length dimension and width dimension of the hollowed-out area.

[0011] Further, the reinforcing member includes a first length segment arranged along the length direction of the hollowed-out area and a first width segment arranged along the width direction of the hollowed-out area. When the first length segment is set to one, the first width segment is set to two; when the first length segment is set to two, the first width segment is set to one or two.

[0012] Further, when the first length segment is set to two, the first width segment is set to two, and the two first length segments and the two first width segments are sequentially connected end to end to form an annular structure, and the annular structure surrounds the hollowed-out area inside.

[0013] Further, there is a spacing between the inner side wall of the annular structure and the edge of the hollowed-out area.

[0014] Further, the reinforcing member includes a second length segment arranged along the length direction of the hollowed-out area and a second width segment arranged along the width direction of the hollowed-out area, the second width segment is provided with two, the second length segment is provided with two, the two ends of the second width segment are respectively denoted as A and B, and one second length segment is connected to the A end of one second width segment, and the other second length segment is connected to the B end of the other second width segment.

[0015] Further, the length dimension of the second length segment is at least 1 / 2 of the length dimension of the hollowed-out area and at most 8 / 10 of the length dimension of the hollowed-out area.

[0016] Further, an anti-slip strip is arranged at the edge of the hollowed-out area, and the anti-slip strip can be in contact with the inner side wall of the reinforcing member.

[0017] Further, the thickness of the anti-slip strip is equal to the thickness of the reinforcing member.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model can maintain the surface flatness through the reinforcing member, so that after the hollowed-out area is formed, the bending part will not be affected during use. Specifically, placing the FPC bending part hollowing and cutting process after the ACF bonding can avoid the poor bonding offset function caused by the poor flatness of the FPC. During the process of laser cutting (this is the prior art and will not be elaborated here), the vacuum adsorption of the FPC by the platen of the laser cutting machine can ensure the flatness of the FPC and improve the cutting accuracy. The reinforcing member at the edge of the hollowed-out area can enhance the strength of the FPC and prevent the FPC from being torn. Description of the Drawings

[0020] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0021] Figure 2 It is a schematic diagram of the flexible board part structure provided by the utility model;

[0022] Figure 3 It is a schematic diagram of the reinforcing member structure provided by the utility model;

[0023] Figure 4 It is a schematic diagram of the anti-slip strip structure provided by the utility model.

[0024] The markings in the figure are explained as follows:

[0025] 1. Display part; 2. Main body part; 3. Bending part; 5. Hollowed-out area; 6. Reinforcing member; 7. Silk screen frame; 8. First length segment; 9. First width segment; 10. Second length segment; 11. Second width segment; 12. Anti-slip strip. Detailed Embodiment

[0026] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0027] FPC: Flexible Printed Circuit.

[0028] As described in the background art, with the improvement of the resolution of the display module, the number of driving ICs required for the display module will increase accordingly. For a high-resolution display module with two Source ICs, a single-piece FPC + one-time ACF bonding solution is generally adopted, resulting in a relatively long bonding position. At this time, the size of the FPC corresponding to the bonding position is relatively large. To facilitate assembly, the non-wiring area of the FPC in the bending area needs to be hollowed out. However, after the FPC is hollowed out, the flatness of the FPC in the bonding position will deteriorate (because there is a hollowed-out area), and PIN foot deviation is likely to occur during ACF bonding, resulting in problems such as functional defects and material loss.

[0029] To solve this technical problem, the present utility model provides a display module for strengthening the strength of the FPC.

[0030] Specifically, please refer to Figures 1 - 4 , for the display module for strengthening the strength of the FPC, the display module includes a display part 1 and a flexible board part connected to the display part 1. The flexible board part includes a main body part 2, a bending part 3, and a connecting part. The connecting part is connected to the display part 1, and the connecting part, the bending part 3, and the main body part 2 are arranged in sequence from the side close to the display part 1 to the side far from the display part 1; a hollowed-out area 5 is provided on the bending part 3, and a reinforcing member 6 for maintaining the surface flatness is provided on the surface of the bending part 3, and the reinforcing member 6 is arranged at the edge of the hollowed-out area 5.

[0031] The present utility model can maintain the surface flatness through the reinforcing member 6, so that after the hollowed-out area is formed, the bending part 3 of the FPC will not be affected during use. Specifically, the process of hollowing and cutting the bending part 3 of the FPC is placed after ACF bonding to avoid functional defects caused by poor flatness of the FPC during bonding. During the laser cutting process (this is the prior art and will not be elaborated here), the vacuum adsorption of the FPC by the table of the laser cutting machine can ensure the flatness of the FPC and improve the cutting accuracy. The reinforcing member 6 at the edge of the hollowed-out area 5 can enhance the strength of the FPC and prevent the FPC from tearing.

[0032] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

[0033] It should be noted that, without conflict, the embodiments and the features and technical solutions in the embodiments of the present utility model can be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0035] Embodiment 1

[0036] Please refer to Figures 1 - 3 , a display module for strengthening the FPC strength, the display module includes a display part 1 and a flexible board part connected to the display part 1, the flexible board part includes a main body part 2, a bending part 3 and a connecting part, the connecting part is connected to the display part 1, and the connecting part, the bending part 3 and the main body part 2 are arranged in sequence from the side close to the display part 1 to the side far from the display part 1; a hollowed-out area 5 is provided on the bending part 3, and a reinforcing member 6 for maintaining the surface flatness is provided on the surface of the bending part 3, and the reinforcing member 6 is arranged at the edge of the hollowed-out area 5

[0037] The utility model can maintain the surface flatness through the reinforcing member 6, so that after the hollowed-out area is formed, the bending part 3 will not be affected during use. Specifically, the FPC bending part 3 hollowing and cutting process is placed after the ACF bonding, avoiding the bonding offset function failure caused by the poor flatness of the FPC. During the process of laser cutting (this is the prior art and will not be elaborated here), the vacuum adsorption of the FPC by the platen of the laser cutting machine can ensure the flatness of the FPC and improve the cutting accuracy. The reinforcing member 6 at the edge of the hollowed-out area 5 can enhance the FPC strength and prevent the FPC from tearing.

[0038] In some specific embodiments, a silk screen frame 7 is arranged outside the hollowed-out area 5, and the silk screen frame 7 is used for assisting cutting positioning.

[0039] In some specific embodiments, the length dimension and width dimension of the reinforcing member 6 are at least greater than 1 / 2 of the length dimension and width dimension of the hollowed-out area 5. Such a setting is to enable the reinforcing member 6 to fully enhance the FPC strength from the edge of the hollowed-out area 5.

[0040] And such a setting indicates that the reinforcing member 6 can be in a ring shape or a single root. The following will explain the two cases.

[0041] Embodiment 2

[0042] The display module for strengthening the FPC strength provided in Embodiment 1 is further optimized. The reinforcing member 6 includes a length segment one 8 arranged along the length direction of the hollowed-out area 5 and a width segment one 9 arranged along the width direction of the hollowed-out area 5. When the length segment one 8 is set to one, the width segment one 9 is set to two; when the length segment one 8 is set to two, the width segment one 9 is set to one or two.

[0043] When the length segment one 8 is set to one and the width segment one 9 is set to two, they are combined to form a U shape.

[0044] In some embodiments, when the length segment one 8 is set to two, the width segment one 9 is set to two, and the two length segments one 8 and the two width segments one 9 are connected end to end in sequence to form an annular structure, and the annular structure surrounds the hollowed-out area 5 inside.

[0045] In some embodiments, there is a spacing between the inner sidewall of the annular structure and the edge of the hollowed-out area 5. That is, the space where the silk-screen frame 7 exists. In special cases, the inner sidewall of the annular structure is flush with the silk-screen frame 7.

[0046] Embodiment 2 consumes relatively more copper materials. Therefore, the following embodiment is provided to address this issue.

[0047] Embodiment 3

[0048] The display module for strengthening the FPC strength provided in Embodiment 1 or 2 is further optimized. The reinforcing member 6 includes a second length segment 10 arranged along the length direction of the hollowed-out area 5 and a second width segment 11 arranged along the width direction of the hollowed-out area 5. There are two second width segments 11 and two second length segments 10. The two ends of the second width segment 11 are respectively denoted as A and B. One second length segment 10 is connected to the A end of one second width segment 11, and the other second length segment 10 is connected to the B end of the other second width segment 11.

[0049] It can be referred to Figure 4 , in this way, there is a second length segment 10 along the length direction of the hollowed-out area 5, and they are staggeredly arranged, which can ensure the strength to a certain extent while reducing the materials.

[0050] In some embodiments, the length dimension of the second length segment 10 is at least 1 / 2 of the length dimension of the hollowed-out area 5 and at most 8 / 10 of the length dimension of the hollowed-out area 5.

[0051] Such a setting is to save materials while ensuring a certain strength.

[0052] Embodiment 4

[0053] The display module for strengthening the FPC strength provided in the above embodiments is further optimized. An anti-slip strip 12 is provided at the edge of the hollowed-out area 5, and the anti-slip strip 12 can abut against the inner sidewall of the reinforcing member 6.

[0054] In some embodiments, the thickness of the anti-slip strip 12 is equal to the thickness of the reinforcing member 6, so that the height of the anti-slip strip 12 is sufficient to prevent relative displacement with the reinforcing member 6.

[0055] The anti-slip strip 12 is provided to prevent the position deviation of the reinforcing member 6 during fixation, and at the same time, it can also prevent the reinforcing member 6 from being pushed to generate relative displacement with the FPC.

[0056] The usage process of the display module for strengthening the FPC strength provided by the present utility model is as follows: The present utility model can maintain the surface flatness through the reinforcing member 6, so that after the hollowed-out area is formed, the bending portion 3 will not be affected during use. Specifically, place the FPC bending portion 3 hollowing and cutting process after the ACF bonding to avoid the binding offset function failure caused by poor FPC flatness. During the process of laser cutting (this is the prior art and will not be elaborated here), the vacuum adsorption of the FPC by the platen of the laser cutting machine can ensure the flatness of the FPC and improve the cutting accuracy. The reinforcing member 6 at the edge of the hollowed-out area 5 can enhance the FPC strength and prevent the FPC from tearing.

[0057] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. The drawings show the preferred embodiments of the present utility model, but do not limit the patent scope of the present utility model. The present utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present utility model more thorough and comprehensive. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present utility model in other related technical fields is equally within the scope of the patent protection of the present utility model.

Claims

1. A display module with enhanced FPC strength, the display module comprising a display portion (1) and a flexible board portion connected to the display portion (1), characterized in that: The flexible plate portion comprises a main body portion (2), a bent portion (3) and a connecting portion, wherein the connecting portion is connected to the display portion (1), and the connecting portion, the bent portion (3) and the main body portion (2) are arranged in sequence from a side close to the display portion (1) to a side away from the display portion (1); A hollowed-out area (5) is provided on the bent portion (3), and a reinforcing member (6) for maintaining surface flatness is provided on the surface of the bent portion (3), wherein the reinforcing member (6) is arranged at the edge of the hollowed-out area (5).

2. The display module with enhanced FPC strength according to claim 1, characterized in that: A silk-screen frame (7) is provided outside the hollowed-out area (5), and the silk-screen frame (7) is used to assist in cutting positioning.

3. The display module with enhanced FPC strength according to claim 2, characterized in that: The length and width of the reinforcement member (6) are at least greater than 1 / 2 of the length and width of the hollowed-out area (5).

4. The display module with enhanced FPC strength according to claim 2 or 3, characterized in that: The reinforcing member (6) comprises a length segment 1 (8) arranged along the length direction of the hollowed-out area (5) and a width segment 1 (9) arranged along the width direction of the hollowed-out area (5); when the length segment 1 (8) is arranged as one, the width segment 1 (9) is arranged as two; when the length segment 1 (8) is arranged as two, the width segment 1 (9) is arranged as one or two.

5. The display module with enhanced FPC strength according to claim 4, characterized in that: When the length segment 1 (8) is set to two, the width segment 1 (9) is set to two, and the two length segments 1 (8) and the two width segments 1 (9) are connected end to end in sequence to form an annular structure, which surrounds the hollowed-out area (5) on the inside.

6. The display module with enhanced FPC strength according to claim 5, characterized in that: There is a distance between the inner side wall of the annular structure and the edge of the hollowed-out area (5).

7. The display module with enhanced FPC strength according to claim 2 or 3, characterized in that: The reinforcing member (6) comprises a length segment 2 (10) arranged along the length direction of the hollowed-out area (5) and a width segment 2 (11) arranged along the width direction of the hollowed-out area (5), two width segments 2 (11) are provided, and two length segments 2 (10) are provided, and the two ends of the width segment 2 (11) are respectively marked as A and B, wherein one length segment 2 (10) is connected to the A end of one width segment 2 (11), and the other length segment 2 (10) is connected to the B end of the other width segment 2 (11).

8. The display module with enhanced FPC strength according to claim 7, characterized in that: The length dimension of the second length segment (10) is at least 1 / 2 of the length dimension of the hollowed-out area (5), and at most 8 / 10 of the length dimension of the hollowed-out area (5).

9. The display module with enhanced FPC strength according to claim 8, characterized in that: An anti-slip strip (12) is provided at the edge of the hollowed-out area (5), and the anti-slip strip (12) is capable of abutting against the inner side wall of the reinforcement member (6).

10. The display module with enhanced FPC strength according to claim 9, characterized in that: The thickness of the anti-slip strip (12) is equal to the thickness of the reinforcement member (6).

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