CN210641131U

CN210641131U - FPC flexible line way board, display module assembly and electron device

Info

Publication number: CN210641131U
Application number: CN201920991909.6U
Authority: CN
Inventors: 陈明轩; 李晓芳; 宣圣贵; 黎长源; 李帅; 黄小龙; 靳玉飞; 王少辉; 戴银燕; 万家刘
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Hefei Electric Appliances Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Hefei Electric Appliances Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-05-29
Anticipated expiration: 2029-06-26

Abstract

The application relates to the technical field of circuit boards, in particular to an FPC (flexible printed circuit), a display module and an electronic device provided with the display module. FPC flexible line way board includes the working line and forms in the pad of at least one working line link, and flexible line way board still includes the reinforcement line, the reinforcement line with the parallelly connected setting of pad, the one end of reinforcement line is connected on the pad, and the other end is connected on the pad or with on the working line that the pad is connected, the pad part between the reinforcement line both ends is the weld zone. Through connecting the front end and the rear end of the welding area with the parallel reinforcing wires of the welding area, under the condition that the welding position is broken due to poor basic welding or turnover assembly process, a circuit signal can be transmitted through the parallel reinforcing wires, the quality hidden trouble caused by open circuit is reduced, and the probability of occurrence of no backlight problem of the liquid crystal display module can be reduced by using the flexible circuit board.

Description

FPC flexible line way board, display module assembly and electron device

Technical Field

The application relates to the technical field of circuit boards, in particular to an FPC (flexible printed circuit) board, and further relates to a display module and an electronic device provided with the display module.

Background

The soft arranging wire mode that uses FPC flexible circuit board in the liquid crystal display module industry at present generally replaces the line sequence arranging wire mode before, can effectively reduce whole thickness of product, and the backlight LED of present liquid crystal display module draws 2 circuits to FPC flexible circuit board's soft printed-wiring in addition, realize connecting through the welding mode, then link to each other with the whole FPC interface of FPC flexible circuit board front end, because the welded position is less and in the assembly region, in production turnover and assembling process, there is the welding position phenomenon of splitting, thereby can lead to the line connection to be bad or form and open circuit, the unable effective transmission of electric current or signal, in concrete liquid crystal display module, can lead to not having the problem emergence of being shaded.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems or at least partially solve the technical problems, the application provides an FPC flexible printed circuit, a display module and an electronic device.

In order to achieve the above object, according to one aspect of the present invention, there is provided an FPC flexible wiring board.

According to this application embodiment's FPC flexible line way board includes the working line and forms in the pad of at least one working line link, and FPC flexible line way board still includes the reinforcement line, the reinforcement line with the parallelly connected setting of pad, the one end of reinforcement line is connected on the pad, and the other end is connected on the pad or with on the working line that the pad is connected, the pad part between the reinforcement line both ends is the welding area.

Furthermore, one or more reinforcing wires are connected in parallel to one bonding pad.

Furthermore, the material of the reinforcing line is the same as that of the working line.

Furthermore, the pad is rectangular shape, one end of the pad is connected with the working circuit and one end of the reinforcing line respectively, and the other end opposite to the pad is connected with the other end of the reinforcing line.

Further, one or more of the pads are provided with the reinforcing line in parallel.

In order to achieve the above object, according to a second aspect of the present disclosure, a display module is further provided.

According to display module assembly of this application embodiment including LED, FPC and module FPC are shaded, FPC is shaded including respectively with K foot and A foot that LED is shaded and connect, K foot and A foot weld respectively on two pads on the module FPC, be used for with at least one in two pads of K foot and A foot welded is parallelly connected to have the reinforcement line.

Furthermore, the display module further comprises an ITO conductive glass assembly, part of working lines of the module FPC are connected with the ITO conductive glass assembly, and the working lines of the module FPC, the backlight LED and the ITO conductive glass assembly are converged at the interface.

In order to achieve the above object, according to a third aspect of the present invention, an electronic device is also provided.

The electronic device according to the embodiment of the application comprises the display module provided by the technical scheme of the application.

The utility model discloses a FPC flexible line way board to and install its display module assembly and electronic equipment, through the front and back end of connecting welding region to the parallelly connected reinforcement line of welding region, cause under the cracked condition of welding position in basic welding is bad or the turnover assembly process, line signal can transmit through parallelly connected reinforcement line, has solved the problem that opens a way and causes, has reduced the quality hidden danger, and the liquid crystal display module assembly can reduce the emergence probability of no problem in a poor light through using this FPC flexible line way board.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic structural reference diagram of a prior art FPC flexible wiring board;

FIG. 2 is a photograph showing the failure of the FPC bonding area in the prior art;

FIG. 3 is a schematic structural reference diagram of an FPC flexible circuit board provided by the embodiment of the present application;

FIG. 4 is a schematic structural reference diagram of a display module in the prior art; and

fig. 5 is a schematic structural reference diagram of a display module according to an embodiment of the present disclosure.

In the figure:

1. a working line; 2. a pad; 3. reinforcing the wire; 4. a backlight FPC; 401. a K pin; 402. a pin A; 5. a module FPC; 501. a first pad; 502. a second pad; 503. reinforcing the wire; 504. an interface.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail with reference to the accompanying examples and figures 1-4.

Example 1

The embodiment provides an FPC flexible circuit board. FIG. 1 is a diagram showing a structure of an FPC flexible printed circuit in the prior art; FIG. 2 is a photograph showing the failure of the FPC bonding area in the prior art; fig. 3 is a reference diagram of the structure of the FPC flexible wiring board provided in the embodiment of the present application.

As shown in fig. 1, in the prior art, an FPC flexible printed circuit includes a plurality of working lines 1, a bonding pad 2 is formed at a connection end of the working line 1, the bonding pad is used for being soldered to a circuit of another electrical component to transmit a signal, and a bonding pad is finally formed on the bonding pad 2, because the FPC flexible printed circuit is made of a flexible material, the FPC flexible printed circuit is inevitably bent frequently in a daily use process, and in a production turnover and an assembly process, a soldering position fracture phenomenon shown in fig. 2 may occur, which may finally cause a bad circuit connection or an open circuit, and current or a signal may not be effectively transmitted, which greatly affects production.

In order to solve the above problem, as shown in fig. 3, an embodiment of the present invention provides an FPC flexible printed circuit, which includes a working circuit 1 and a pad 2 formed at a connection end of at least one working circuit 1, and is characterized by further including a reinforcing line 3, where the reinforcing line 3 is arranged in parallel with the pad 2, one end of the reinforcing line 3 is connected to the pad 2, the other end of the reinforcing line 3 is connected to the pad 2 or the working circuit 1 connected to the pad 2, and a pad portion between two ends of the reinforcing line 1 is a bonding area. In this embodiment, connect the front and back end of welding region through parallelly connected reinforcement line 3 to the welding region of pad 2, cause the cracked condition of welding position in basic poor welding or turnover assembly process, circuit signal can transmit through parallelly connected reinforcement line 3, has solved the problem that open a way and caused, has reduced the quality hidden danger.

In the above embodiment, the number of the reinforcement lines 3 connected in parallel to one pad 2 may be one or more. Under the condition that a plurality of parallel reinforcing wires 3 are arranged on one bonding pad 2, a plurality of candidates can be provided, and the bonding pad can still normally work under the condition that a certain reinforcing wire 3 is broken. In practical use, one reinforcing line 3 is usually provided to meet the requirement, and therefore, preferably, one reinforcing line 3 is connected in parallel to one pad 2.

Preferably, the material of the reinforcing line 3 is the same as that of the working line 1, so that the consistency of the signal transmission line can be ensured, the quality of signal transmission can be ensured, and the same transmission effect as that of welding connection can be obtained.

In some embodiments, as shown in fig. 3, the shape of the pad 2 is preferably a long strip shape because the long strip shape has a high probability of breaking as shown in fig. 2 after soldering. In this case, as shown in the figure, one end of the bonding pad 2 is connected with one end of the working circuit 1 and one end of the reinforcing wire 3, and the other end opposite to the bonding pad 2 is connected with the other end of the reinforcing wire 3, so that when the welding position is located on the bonding pad, even if the welding position is broken, the reinforcing wire 3 can still be used for continuing working.

In general, one FPC flexible printed circuit board may include several, dozens, or even hundreds of working circuits and pads, the number of pads on which the reinforcing line 3 provided in the embodiment of the present application is specifically set is not specifically limited, and may be one or more, and is specifically determined according to a requirement, and on the FPC flexible printed circuit board in fig. 3 provided in the present application, the two pads 2 are provided with the reinforcing line 3 in parallel.

The method for manufacturing the FPC flexible printed circuit board according to this embodiment may be an optimization method of an FPC circuit, which is the same as a conventional process for manufacturing the FPC flexible printed circuit board, and is different in that a working circuit 1 is formed by etching in a circuit etching step, a reinforcing line 3 is formed by etching, the reinforcing line 3 is connected in parallel to a pad 2 at a connection end of the working circuit 1, one end of the reinforcing line 3 is connected to the pad 2, the other end of the reinforcing line 3 is connected to the pad 2 or the working circuit 1, and a pad portion between two ends of the reinforcing line 3 is a welding region. The process is improved, no additional working procedure is added, only the increase is needed when the flexible flat cable in the FPC is wired at the beginning, the process is not complex, the process is simple, the operation is convenient, the investment cost is low, the effect is large, the quality hidden danger is reduced, and the reliability is enhanced.

Example 2

The present embodiment provides a display module. FIG. 4 is a structural reference diagram of a display module in the prior art; fig. 5 is a structural reference diagram of a display module according to an embodiment of the present disclosure.

As shown in fig. 4, a display module in the prior art structurally includes a backlight LED, a backlight FPC4, a module FPC5, and an ITO conductive glass assembly, where the backlight LED is connected by a soldering method to a flexible printed circuit of a flexible circuit board of the module FPC5 from another 2 lines LED out from the backlight FPC4, and then connected to an integral connector at the front end of the flexible circuit board of the module FPC5, that is, as shown in fig. 4, the backlight FPC4 includes a K pin 401 and an a pin 402 respectively connected to the backlight LED, and the K pin 401 and the a pin 402 are respectively soldered to a first solder pad 501 and a second solder pad 502 on the module FPC 5. Because the welding position is small and in the assembly area, the welding position is broken in the process of production turnover and assembly, and therefore poor connection or open circuit of the circuit can be caused.

In order to solve the above problem, as shown in fig. 5, the display module provided in this embodiment includes a backlight LED, a backlight FPC4 and a module FPC5, the backlight FPC4 includes a K pin 401 and an a pin 402 respectively connected to the backlight LED, and the K pin 401 and the a pin 402 are respectively soldered on a first pad 501 and a second pad 502 on the module FPC5, where the module FPC5 is the FPC flexible circuit board provided in embodiment 1, and at least one of the first pad 501 and the second pad 502 is connected in parallel to a reinforcing wire 503.

Since the module FPC5 in this embodiment is the FPC flexible printed circuit provided in embodiment 1, and at least one of the first pad 501 and the second pad 502 is connected in parallel with the reinforcing wire 503, the display module having the module FPC5 also has all the above technical effects, and can reduce the probability of occurrence of no backlight problem caused by breakage of a welded portion, which is not described in detail herein.

As shown in fig. 5, the first pad 501 and the second pad 502 are preferably connected in parallel with a reinforcing line 503, which can ensure the signal transmission effect of the K pin 401 and the a pin 402.

In some embodiments, the display module further includes an ITO conductive glass assembly, a part of the working lines of the FPC module 5 is connected to the ITO conductive glass assembly, and the working lines of the FPC module 5 connected to the backlight LED and the working lines connected to the ITO conductive glass assembly are gathered at the socket 504.

Example 3

The embodiment provides an electronic device, which comprises the display module provided by the embodiment 2 of the application.

Since the display module of the electronic device is the display module disclosed in embodiment 2, the electronic device having the display module also has all the above technical effects, and details are not repeated herein. The electronic device according to the above embodiments may include a mobile phone, a computer, an air conditioner panel, a liquid crystal television, etc., and it may further include other necessary components or structures such as a housing, a key, a processor, an input/output component, etc., and the corresponding arrangement position and connection relationship may refer to the electronic device in the prior art, and the connection relationship, operation and working principle of each un-described structure are known to those skilled in the art, and will not be described in detail herein.

Some embodiments in this specification are described in a progressive or parallel manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.

The foregoing is merely a detailed description of the invention that enables those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a FPC flexible line board, includes working line (1) and forms in pad (2) of at least one working line (1) link, its characterized in that, still includes reinforcement line (3), reinforcement line (3) with pad (2) parallel arrangement, the one end of reinforcement line (3) is connected on pad (2), the other end is connected on pad (2) or with working line (1) that pad (2) are connected, the pad part between reinforcement line (3) both ends is the weld zone.

2. The FPC flexible wiring board according to claim 1, wherein one of the pads (2) is connected in parallel with one or more of the reinforcement lines (3).

3. The FPC flexible wiring board according to claim 1, wherein the material of the reinforcing wire (3) is the same as that of the working circuit (1).

4. The FPC flexible circuit board according to claim 1, wherein the bonding pad (2) is in a strip shape, one end of the bonding pad (2) is connected to one end of the working circuit (1) and one end of the reinforcing wire (3), and the other end of the bonding pad (2) opposite to the other end is connected to the other end of the reinforcing wire (3).

5. The FPC flexible wiring board according to claim 1, wherein one or more of the pads (2) are provided with the reinforcing wire (3) in parallel.

6. A display module comprises a backlight LED, a backlight FPC (4) and a module FPC (5), wherein the backlight FPC (4) comprises a K pin (401) and an A pin (402) which are respectively connected with the backlight LED, the K pin (401) and the A pin (402) are respectively welded on a first bonding pad (501) and a second bonding pad (502) on the module FPC (5), the display module is characterized in that,

the FPC module (5) is the FPC flexible circuit board of any one of claims 1 to 5, and at least one of the first bonding pad (501) and the second bonding pad (502) is connected with a reinforcing wire in parallel.

7. The display module according to claim 6, further comprising an ITO conductive glass assembly, wherein part of the working lines of the FPC (5) of the module are connected with the ITO conductive glass assembly, and the working lines of the FPC (5) of the module connected with the backlight LED and the working lines connected with the ITO conductive glass assembly are gathered at the jack (504).

8. An electronic device, comprising the display module of claim 6 or 7.