Welding type display screen FPC structure

Abstract

The utility model discloses a welding type display screen FPC (Flexible Printed Circuit) structure, which comprises a display component, an FPC (Flexible Printed Circuit) and a flexible printed circuit board, the welding type FPC assembly is located on the display assembly for binding, and the welding type FPC assembly is provided with a groove body; the welding type FPC assembly is divided into an FPC1 area and an FPC2 area through the groove body. According to the welding type display screen FPC structure provided by the utility model, the FPC is slotted from the welding end to the binding end, so that the FPC is divided into two parts in half, but the binding area of the FPC is not separated, and in the actual welding operation, one part is firstly aligned and welded, and then one part is aligned and welded again, so that the welding accuracy is improved, and the production efficiency is improved. The problem of poor contact between the FPC and the mainboard is effectively prevented; meanwhile, through the arrangement of the separation unit, the interior of the groove body can be blocked, so that the fitting protection of the grooving part is realized, and the relative connection strength between the two separated FPC areas is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of display screen FPC, in particular to a welding type display screen FPC structure. Background Art

[0002] Flexible circuit boards, also known as soft circuit boards and flexible circuit boards, are highly favored for their excellent properties such as light weight, thin thickness, and free bending and folding... However, the quality inspection of FPC in China still mainly relies on manual visual inspection, which is costly and inefficient. With the rapid development of the electronics industry, circuit board design is becoming more and more high-precision and high-density. Traditional manual inspection methods can no longer meet production needs, and automated inspection of FPC defects has become an inevitable trend in industrial development.

[0003] Most current display screens have driver ICs and FPCs. If the driver ICs used require many peripheral devices (capacitors or resistors), and these devices are not placed on the FPC but on the terminal mainboard, the FPC is required to connect the signal lines of the connected devices to the terminal mainboard.

[0004] In this case, the width of the FPC will be relatively large, which makes it difficult to operate when soldering the motherboard. If the FPC pad is offset from the motherboard pad, poor soldering contact between the FPC and the motherboard will result. Therefore, a soldering type display FPC structure is proposed. Utility Model Content

[0005] Based on this, it is necessary to provide a welding type display screen FPC structure to address the above technical problems, by slotting the traditional FPC so that the welding end on it is divided into two parts to form a new FPC structure, which is convenient for independent alignment and welding to reduce welding offset.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A welding type display screen FPC structure, comprising:

[0008] A display component having a driver IC thereon;

[0009] A welding type FPC component is located on the display component for binding, and the welding type FPC component has a groove body;

[0010] The welding type FPC assembly is divided into an FPC1 area and an FPC2 area by a slot body;

[0011] The FPC1 area and the FPC2 area together with the slot body form a welding type FPC assembly for connecting with a PCB pad.

[0012] Furthermore, the FPC1 region has a binding end and a welding end, and the FPC1 region and the FPC2 region have the same structure.

[0013] Furthermore, the binding ends on the same side of the FPC1 region and the FPC2 region are an integrated structure and are bound together on the display assembly.

[0014] Further, the groove body has an outer opening for separating the welding ends on the FPC1 area and the FPC2 area;

[0015] The outer opening of the groove body allows the welding ends on the FPC1 area and the FPC2 area to be adjusted independently.

[0016] Furthermore, the display assembly comprises an upper glass and a lower glass which are bonded to each other, and an upper polarizer and a lower polarizer are respectively arranged on the outer sides of the upper glass and the lower glass;

[0017] The area where the welding type FPC component is bound with the display component and the location of the driver IC are coated with protective glue to form protection.

[0018] Furthermore, one end of the slot body away from the outer opening may extend vertically toward the display assembly.

[0019] Furthermore, the maximum extension length of the slot body ends at the outer end of the binding end.

[0020] Furthermore, a separation unit is provided on the tank body for separating and protecting the tank body.

[0021] Furthermore, the separation unit comprises an upper insulating protective film and a lower insulating protective film, and edges on opposite sides of the upper insulating protective film and the lower insulating protective film are both formed with a pasting area for pasting with a soldering type FPC component.

[0022] Furthermore, an upper barrier foam and a lower barrier foam are respectively provided in the middle of the opposite sides of the upper insulating protective film and the lower insulating protective film;

[0023] Wherein, the upper barrier foam has two and is respectively distributed at two ends of one side of the upper insulating protective film;

[0024] The lower barrier foam is located between the two upper barrier foams to form a barrier structure together.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] The welding type display screen FPC structure provided by the utility model is to make a groove from the welding end to the binding end of the FPC, so that the FPC is divided into two halves, but the FPC binding area is not separated. In the actual welding operation, one part is first aligned and welded, and then the other part is re-aligned and welded, which improves the welding accuracy and effectively prevents the problem of poor contact between the FPC and the mainboard;

[0027] At the same time, through the setting of the separation unit, the inside of the groove body can be sealed, thereby achieving the fitting protection of the grooved part, and improving the relative connection strength between the two FPC areas after separation to a certain extent, reducing the situation where the two welding ends are prone to warping after welding. In addition, the gap between the edge of the FPC and the contact surface of the lower barrier foam can be used to assist in judging whether the welding end is welded in place, which is convenient for the actual use of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a structural schematic diagram of the welding type display screen FPC structure provided by the utility model;

[0029] Figure 2 A schematic diagram of the side view structure of the display assembly of the welding type display screen FPC structure provided by the utility model;

[0030] Figure 3 A schematic diagram of the structure of a welding type FPC assembly of a welding type display screen FPC structure provided by the utility model;

[0031] Figure 4 This is a schematic diagram of the structure of a welding type FPC assembly in Example 4 of a welding type display screen FPC structure provided by the utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the internal separation unit of Example 4 of the welding type display screen FPC structure provided by the utility model;

[0033] Figure 6 This is a schematic diagram of the installation structure of the internal partition unit of Example 4 of the welding type display screen FPC structure provided by the utility model;

[0034] Figure 7 The utility model provides a schematic diagram of the upper insulating protective film structure of the welding type display screen FPC structure.

[0035] The markings in the figure are as follows:

[0036] Display component 1, driver IC 11, upper glass 12, lower glass 13, upper polarizer 14, lower polarizer 15, protective glue 16;

[0037] Welding type FPC assembly 2, slot 21, FPC1 area 22, FPC2 area 23,

[0038] External port 210,

[0039] Binding end 220, welding end 221;

[0040] Separation unit 5 , upper insulating protective film 51 , lower insulating protective film 52 , adhesive area 53 , upper barrier foam 54 ; lower barrier foam 55 . DETAILED DESCRIPTION

[0041] 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.

[0042] As in the background art, since the width of the FPC is relatively large, it is difficult to operate when welding the mainboard. If the FPC pad is offset from the mainboard pad, it will cause poor welding contact between the FPC and the mainboard.

[0043] In order to solve this technical problem, the utility model provides a welding type display screen FPC structure, which is applied to the display screen FPC.

[0044] Specifically, please refer to Figure 1-7 , the welding type display screen FPC structure specifically includes;

[0045] A display component 1 having a driver IC 11 thereon;

[0046] A welding type FPC component 2, which is located on the display component 1 for binding, and has a groove body 21;

[0047] The welding type FPC assembly 2 is divided into an FPC1 area 22 and an FPC2 area 23 by a groove body 21;

[0048] The FPC1 area 22 and the FPC2 area 23 together with the slot body 21 form a soldering type FPC assembly 2 for connecting with a PCB pad.

[0049] The welding type display screen FPC structure provided by the utility model is divided into two areas, FPC1 area 22 and FPC2 area 23, by opening a slot body 21 in a wider welding type FPC component 2. Therefore, in the process of welding the welding ends on the FPC1 area 22 and the FPC2 area 23 to the corresponding PCB pads, the FPC1 area 22 and the FPC2 area 23 can be welded independently in sequence;

[0050] Thereby, the use requirement of the wider size of the welding type FPC component 2 is retained, and the adjustment of the welding angle during welding is satisfied, so that the welding operation is smoother and the occurrence of poor welding caused by the wider welding width and greater difficulty in the docking process is reduced.

[0051] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0052] 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.

[0053] 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. Example 1

[0054] Please refer to Figure 1-3 , a welding type display screen FPC structure, comprising:

[0055] A display component 1, having a driver IC 11 on the display component 1; a welding type FPC component 2, which is located on the display component 1 for binding, and has a slot body 21 on the welding type FPC component 2; the welding type FPC component 2 is divided into an FPC1 area 22 and an FPC2 area 23 by the slot body 21, wherein the FPC1 area 22 and the FPC2 area 23 together with the slot body 21 constitute the welding type FPC component 2 for connecting with the PCB pad 3;

[0056] The FPC1 region 22 has a binding end 220 and a welding end 221, and the FPC1 region 22 and the FPC2 region 23 have the same structure;

[0057] The binding ends 220 on the same side of the FPC1 region 22 and the FPC2 region 23 are an integrated structure and are bound together on the display assembly 1;

[0058] The groove body 21 has an outer opening 210 for separating the welding ends 221 on the FPC1 area 22 and the FPC2 area 23;

[0059] The outer opening 210 of the groove body 21 allows the welding ends 221 on the FPC1 area 22 and the FPC2 area 23 to be adjusted independently;

[0060] The outer port 210 provided in this embodiment is located at the end of the welding type FPC component 2 away from the driver IC 11. Therefore, the welding ends of the end of the welding type FPC component 2 can be independently separated through the outer port 210, so that in the actual welding process, the positions of the corresponding welding ends 211 on the FPC1 area 22 and the FPC2 area 23 can be freely adjusted. Moreover, since the corresponding welding ends 211 on the FPC1 area 22 and the FPC2 area 23 are compared with the traditional wider size welding type FPC, the alignment difficulty of the operator is greatly reduced, making the welding efficiency higher. Example 2

[0061] The welding type display screen FPC structure provided in Example 1 is further optimized, specifically, as follows: Figure 4 As shown, the display assembly 1 includes an upper glass 12 and a lower glass 13 that are bonded to each other, and an upper polarizer 14 and a lower polarizer 15 are respectively disposed on the outer sides of the upper glass 12 and the lower glass 13;

[0062] The area where the welding type FPC component 2 is bonded to the display component 1 and the location of the driver IC 11 are coated with a protective glue 16 for protection.

[0063] like Figure 2 and Figure 3 As shown, by binding the welding type FPC component 2 to the position below the display component 1, the welding type FPC component 2 can be exposed to the outside of the display component 1 more during the actual welding process, so that the welding type FPC component 2 has a larger range of free movement, further satisfying the movable calibration of the welding ends 221 on the FPC1 area 22 and the FPC2 area 23 after the opening of the slot body 21 in Example 1;

[0064] Through the structural design of the above-mentioned protective glue 16, the welding type FPC component 2 can be coated with glue for protection at the position where the display component 1 is bound. At the same time, since the driver IC 11 is also close to the position where the welding type FPC component 2 is bound with the display component 1, it can be coated with glue for protection at the same time. Example 3

[0065] The welding type display screen FPC structure provided in Example 1 or 2 is further optimized, such as Figure 1-3 As shown, in the welding type display screen FPC structure, the end of the groove body 21 away from the outer opening 210 can extend vertically toward the display assembly 1;

[0066] The maximum extension length of the slot body 21 ends at the outer end of the binding end 220;

[0067] In the process of slotting the welding type FPC component 2, the slot body 21 is parallel to the width direction of the welding type FPC component 2 and extends toward the binding end 220, and the specific length of the slot body 21 can be adjusted according to the actual welding operation;

[0068] When the actual width of the welding type FPC assembly 2 is large, the length of the slot body 21 can be reasonably extended to make the binding ends 221 on the separated FPC1 area 22 and FPC2 area 23 more movable;

[0069] Similarly, when the actual width of the welding type FPC assembly 2 is small, the length of the slot 21 can be reduced, but it can still meet the docking activities during the welding process of the binding ends 221 on the separated FPC1 area 22 and the FPC2 area 23;

[0070] Thus, by adjusting the length of the slot body 21, the slotted welding type FPC assembly 2 can not only meet the welding activity requirements after the separation of the FPC1 area 22 and the FPC2 area 23, but also retain the strength of the connection between the separated FPC1 area 22 and the FPC2 area 23 as much as possible, so that the welding type FPC assembly 2 is more stable as a whole;

[0071] like Figure 3 As shown, arc chamfers are formed on the inner circumference of the slot body 21. Through the coordination of the arc chamfers, the tensile stress in the slot body 21 is reduced during the independent adjustment welding of the FPC1 area 22 and the FPC2 area 23, thereby avoiding the situation where the welded FPC assembly 2 is easily torn and thus scrapped. Example 4

[0072] The welding type display screen FPC structure provided in the above embodiments is further optimized, such as Figure 4 , Figure 5 , Figure 6 ,and Figure 7 As shown, a separation unit 5 is provided on the tank body 21 for separating and protecting the tank body 21;

[0073] The separation unit 5 includes an upper insulating protective film 51 and a lower insulating protective film 52. The edges of the upper insulating protective film 51 and the lower insulating protective film 52 on opposite sides are both formed with a pasting area 53 for pasting with the soldering type FPC component 2.

[0074] The upper insulating protective film 51 and the lower insulating protective film 52 can be respectively pasted to the two sides of the soldering type FPC component 2 through the pasting area 53, which not only forms a protection for the slotted part of the soldering type FPC component 2, but also increases the strength of the connection between the FPC1 area 22 and the FPC2 area 23, making it less likely to break;

[0075] At the same time, since the upper insulating protective film 51 and the lower insulating protective film 52 both extend to a position close to the welding end 221, it also effectively avoids the situation in which the FPC in the slot 21 is easily lifted up after welding and accelerates the cracking of the welding end, which is beneficial to the stability of the welding type FPC assembly 2. Example 5

[0076] The welding type display screen FPC structure provided in Example 4 is further optimized, such as Figure 5 , Figure 6 and Figure 7 As shown, the groove is further optimized as the present embodiment: an upper barrier foam 54 and a lower barrier foam 55 are respectively provided in the middle of the opposite sides of the upper insulating protective film 51 and the lower insulating protective film 52, wherein the upper barrier foam 54 has two and is respectively distributed at the two ends of one side of the upper insulating protective film 51, and the lower barrier foam 55 is located between the two upper barrier foams 54 to form a barrier structure together.

[0077] A certain gap is left between the upper barrier foam 54 and the lower barrier foam 55 so as to facilitate the docking of the upper barrier foam 54 and the lower barrier foam 55 during the bonding process of the upper insulating protective film 51 and the lower insulating protective film 52;

[0078] Before welding the FPC1 area 22 and the FPC2 area 23 formed after the slotting, firstly, the lower insulating protective film 52 is attached to the bottom of the FPC2 area 23, and then the welding end 221 on the FPC1 area 22 is adjusted and welded. After the welding of the FPC1 area 22 is completed, the FPC1 area 22 can be slightly pressed to form a sticking state with the lower insulating protective film 52 below, and at this time, the lower barrier foam 55 is located in the slot body 21;

[0079] Due to the arrangement of the lower barrier foam 55, during the alignment process of welding of the other FPC2 region 23, the gap between the lower barrier foam 55 and the FPC2 region 23 can assist the FPC2 region 23 to quickly locate the position so as to perform welding, thereby improving the overall welding efficiency of the welding type FPC assembly 2;

[0080] Then, the upper insulating protective film 51 is attached to a position corresponding to the lower insulating protective film 52 , so that the upper barrier foam 54 and the lower barrier foam 55 are butted against each other, thereby further supporting and protecting the slot body 21 .

[0081] The use process of the welding type display screen FPC structure provided by the utility model is as follows:

[0082] After the welding type FPC component 2 is grooved to form the FPC1 area 22 and the FPC2 area 23, the corresponding welding ends 221 on the FPC1 area 22 and the FPC2 area 23 are welded to the corresponding PCB pads 3 in sequence, and the welding accuracy of the welding type FPC component 2 is improved by sequential alignment welding.

[0083] 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.

[0084] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The 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 disclosure of the utility model more thorough and comprehensive. Although the utility model 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 utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A welding type display screen FPC structure, characterized in that: It includes: A display component (1), wherein a driver IC (11) is provided on the display component (1); A welding type FPC component (2), which is located on the display component (1) for binding, and the welding type FPC component (2) has a groove body (21); The welding type FPC assembly (2) is divided into an FPC1 area (22) and an FPC2 area (23) by a groove body (21); The FPC1 region (22) and the FPC2 region (23) together with the slot body (21) form a welding type FPC component (2) for connection with a PCB pad.

2. The welding type display screen FPC structure according to claim 1 is characterized in that: The FPC1 region (22) has a binding end (220) and a welding end (221), and the FPC1 region (22) and the FPC2 region (23) have the same structure.

3. The welding type display screen FPC structure according to claim 2 is characterized in that: The binding ends (220) on the same side of the FPC1 region (22) and the FPC2 region (23) are an integrated structure and are bound together on the display component (1).

4. The welding type display screen FPC structure according to claim 2 is characterized in that: The groove body (21) has an outer opening (210) for separating welding ends (221) on the FPC1 region (22) and the FPC2 region (23); The outer opening (210) of the groove body (21) enables the welding ends (221) on the FPC1 area (22) and the FPC2 area (23) to be adjusted independently.

5. The welding type display screen FPC structure according to claim 1 is characterized in that: The display assembly (1) comprises an upper glass (12) and a lower glass (13) which are bonded to each other, and an upper polarizer (14) and a lower polarizer (15) are respectively provided on the outer sides of the upper glass (12) and the lower glass (13); The area where the welding type FPC component (2) is bonded to the display component (1) and the location of the driver IC (11) are coated with a protective adhesive (16) to provide protection.

6. The welding type display screen FPC structure according to claim 1 is characterized in that: One end of the groove body (21) away from the outer opening (210) can extend vertically towards the display assembly (1).

7. The welding type display screen FPC structure according to claim 4 is characterized in that: The maximum extension length of the groove body (21) ends at the outer end of the binding end (220).

8. The welding type display screen FPC structure according to claim 7 is characterized in that: The tank body (21) is provided with a separation unit (5) for separating and protecting the tank body (21).

9. The welding type display screen FPC structure according to claim 8, characterized in that: The separation unit (5) comprises an upper insulating protective film (51) and a lower insulating protective film (52), and edges on opposite sides of the upper insulating protective film (51) and the lower insulating protective film (52) are both formed with a pasting area (53) for pasting with a welding type FPC component (2).

10. The welding type display screen FPC structure according to claim 9, characterized in that: An upper barrier foam (54) and a lower barrier foam (55) are respectively provided in the middle of the opposite sides of the upper insulating protective film (51) and the lower insulating protective film (52); The upper barrier foam (54) has two pieces and is respectively distributed at two ends of one side of the upper insulating protective film (51); The lower barrier foam (55) is located between the two upper barrier foams (54) to jointly form a barrier structure.

Images