CN114340141A - Flexible circuit board, touch screen structure and terminal - Google Patents
Flexible circuit board, touch screen structure and terminal Download PDFInfo
- Publication number
- CN114340141A CN114340141A CN202111501004.4A CN202111501004A CN114340141A CN 114340141 A CN114340141 A CN 114340141A CN 202111501004 A CN202111501004 A CN 202111501004A CN 114340141 A CN114340141 A CN 114340141A
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- circuit board
- tear
- edge
- film
- flexible circuit
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- 238000005452 bending Methods 0.000 claims abstract description 76
- 239000012528 membrane Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Structure Of Printed Boards (AREA)
- Non-Metallic Protective Coatings For Printed Circuits (AREA)
Abstract
The invention provides a flexible circuit board, a touch screen structure and a terminal, wherein the flexible circuit board comprises a circuit board body and an anti-tear film, the circuit board body comprises a bending area and a bonding area, the circuit board body is provided with a first edge and a second edge which are opposite, the first edge of the bending area is provided with the first anti-tear film, the second edge of the bending area is provided with the second anti-tear film, the first anti-tear film is provided with a first notch, the second anti-tear film is provided with a second notch, and the first notch and the second notch are symmetrically arranged on the bending area. This flexible circuit board has reduced the damaged condition of edge at the in-process of buckling of bending over, through set up symmetrical first breach and second breach on the first edge and the second edge in circuit board body bending over, can control the bending position of flexible circuit board bending over, the problem of off normal when having avoided the flexible circuit board equipment.
Description
Technical Field
The invention belongs to the technical field of card sleeves, and particularly relates to a flexible circuit board, a touch screen structure and a terminal.
Background
The Flexible Printed Circuit (FPC) can be used for connecting the mobile phone screen body and the mainboard. The FPC flexible circuit can be twisted, bent and folded, achieves integration of component assembly and wire connection, can bear millions of dynamic bending, can be well used in an internal connection system of a product, improves the space utilization rate and flexibility of the product, and meets the development requirements of electronic products tending to miniaturization and high density.
Usually, the FPC is connected with the mobile phone screen body in a bonding mode and then bent, but the bending position of the FPC is generally not controlled and fixed when the FPC is bent, so that the FPC deviates after the FPC is bent, and the screen body module is abnormally assembled.
Disclosure of Invention
The invention aims to provide a flexible circuit board, a touch screen structure and a terminal, and aims to solve the technical problem that the assembly deviation of an FPC (flexible printed circuit) is caused because the bending position of the FPC cannot be controlled and fixed when the FPC is bent in the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that: the invention provides a flexible circuit board in a first aspect, which comprises a circuit board body and an anti-tearing film;
the circuit board body is including bending zone and nation decides the district, the circuit board body has relative first edge and second edge, bending zone be provided with first anti-tear membrane on the first edge, bending zone be provided with second anti-tear membrane on the second edge, first breach has on the first anti-tear membrane, the second breach has on the second anti-tear membrane, first breach with the second breach is in bending zone goes up the symmetry and sets up.
In one embodiment, the circuit board body has a first face and a second face opposite to the first face;
the first tear resistant film covers first and second faces at the first edge of the inflection zone, and the second tear resistant film covers first and second faces at the second edge of the inflection zone.
In an embodiment, the number of the first notches is two, the number of the second notches is two, a first spaced tear-resistant film with a preset length is arranged between the two first notches, and a second spaced tear-resistant film with a preset length is arranged between the two second notches.
In one embodiment, the first spaced tear resistant film is located at a middle position of the first tear resistant film, the second spaced tear resistant film is located at a middle position of the second tear resistant film, and the outer contours of the first spaced tear resistant film and the second spaced tear resistant film are both rectangular.
In an embodiment, the outer contours of the first notch and the second notch are both rectangular.
In one embodiment, the first tear-resistant film extends towards the inner side of the circuit board body for a length of 0.3-0.6 mm; the second anti-tear film extends towards the inner side of the circuit board body for 0.3-0.6 mm.
In an embodiment, the first edge is parallel to the second edge, the first tear resistant film extends to the first edge of the bonding region, and the second tear resistant film extends to the second edge of the bonding region.
In one embodiment, the first tear resistant film and the second tear resistant film are both bilayer films.
A second aspect of the invention provides a touch screen structure comprising a flexible circuit board as described above.
A third aspect of the invention provides a terminal comprising a touch screen structure as described above.
The flexible circuit board comprises a circuit board body and an anti-tearing film, wherein the circuit board body comprises a bending area and a bonding area, the bending area is provided with a first edge and a second edge, the first edge of the bending area is provided with the first anti-tearing film, the second edge of the bending area is provided with the second anti-tearing film, the first anti-tearing film is provided with a first notch, the second anti-tearing film is provided with a second notch, the first notch and the second notch are symmetrically arranged on the circuit board body, the flexible circuit board reduces the damage condition of the edge of the bending area of the flexible circuit board in the bending process by arranging the first anti-tearing film on the first edge of the bending area of the circuit board body and arranging the second anti-tearing film on the second edge of the bending area of the circuit board body, and by arranging the first notch and the second notch which are symmetrically arranged on the first edge and the second edge of the bending area of the circuit board body, the bending position of the bending area of the flexible circuit board can be controlled, and the problem of deviation during assembly of the flexible circuit board is avoided.
The touch screen structure provided by the invention comprises the flexible circuit board, the first anti-tearing film is arranged on the first edge of the bending area of the circuit board body, the second anti-tearing film is arranged on the second edge of the bending area of the circuit board body, so that the damage condition of the edge of the bending area of the flexible circuit board in the bending process is reduced, the bending position of the bending area of the flexible circuit board can be controlled by arranging the first notch and the second notch which are symmetrical on the first edge and the second edge of the bending area of the circuit board body, and the problem of deviation of the flexible circuit board when the touch screen structure is assembled is avoided.
The terminal provided by the invention comprises the touch screen structure, and the touch screen structure of the terminal reduces the damage of the edge of the flexible circuit board bending area in the bending process during assembly, can control the bending position of the flexible circuit board bending area and avoids the problem of deviation of the flexible circuit board.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible circuit board according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of bonding of a flexible circuit board and a screen body according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a flexible circuit board according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of bonding a flexible circuit board and a screen body according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a circuit board body;
2-a tear resistant film;
11-a bending zone;
12-a bonding area;
21-a first tear resistant film;
22-a second tear resistant film;
211-a first gap;
212-first spacing tear resistant film
221-a second notch;
222-second spaced tear resistant film.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
In the description of the present invention, it is to be understood that the terms "comprises" and "comprising," and any variations thereof, as used herein, 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 addition, in the present application, unless otherwise expressly specified or limited, the terms "connected," "secured," "mounted," and the like are to be construed broadly, such as to encompass both mechanical and electrical connections; the terms may be directly connected or indirectly connected through an intermediate medium, and may be used for communicating between two elements or for interacting between two elements, unless otherwise specifically defined, and the specific meaning of the terms in the present application may be understood by those skilled in the art according to specific situations.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone.
The flexible circuit board, the touch screen structure and the terminal provided by the invention are described in detail with reference to specific embodiments.
Fig. 1 is a schematic structural diagram of a flexible circuit board according to an embodiment of the present invention, fig. 2 is a schematic structural diagram of a flexible circuit board bonded to a screen body according to an embodiment of the present invention, and please refer to fig. 1 and fig. 2, a first aspect of an embodiment of the present invention provides a flexible circuit board, which includes a circuit board body 1 and a tear-proof film 2.
Circuit board body 1 includes bending zone 11 and nation definite area 12, the circuit board body has relative first edge and second edge, bending zone 11 be provided with first tear-resistant membrane 21 on the first edge, bending zone 11 be provided with second tear-resistant membrane 22 on the second edge, first breach 211 has on the first tear-resistant membrane 21, second breach 221 has on the second tear-resistant membrane 22, first breach 211 with second breach 221 is in the symmetry sets up on bending zone 11.
The circuit board body 1 of the present embodiment is a flexible printed circuit board with high reliability and excellent performance, which is made of polyimide or polyester film as a base material. The FPC has the characteristics of high wiring density, light weight, thin thickness and good bending property, and is usually used for connecting a mobile phone screen body and a mainboard. In this embodiment, the specific material of the first tear-resistant film 21 and the second tear-resistant film 22 is not particularly limited.
The size of the flexible circuit board of the embodiment is preset in advance according to actual needs, and the size of the flexible circuit board is not particularly limited in the embodiment.
Bonding is a wire bonding method in the chip production process, generally used for connecting the internal circuit of the chip with the package pin or the gold-plated copper foil of the circuit board by a gold wire or an aluminum wire before packaging, ultrasonic waves (generally 40-140KHz) from an ultrasonic generator generate high-frequency vibration through a transducer, the high-frequency vibration is transmitted to a chopper through an amplitude transformer, when the chopper is contacted with a lead and a welded piece, under the action of pressure and vibration, the surfaces of the to-be-welded metals are mutually rubbed, an oxide film is damaged, and plastic deformation occurs, so that two pure metal surfaces are tightly contacted, the combination of atomic distance is achieved, and finally, firm mechanical connection is formed. After bonding (i.e., after the circuit is connected to the pins), the chip is encapsulated by using black glue, and the bonding area in this embodiment refers to an area where the flexible circuit board is connected to the electronic component. The present embodiment does not particularly limit the size of the bonding region and the bending region.
In this embodiment, a first anti-tear film 21 is disposed on a first edge of the bending region 11, and a second anti-tear film 22 is disposed on a second edge of the bending region 11, where the first anti-tear film 21 and the second anti-tear film 22 are used to prevent the FPC from being torn during the assembly process, and the material and the size of the first anti-tear film 21 and the second anti-tear film 22 are not particularly limited, and the material of the first anti-tear film 21 and the material of the second anti-tear film 22 may be the same or different.
The flexible circuit board provided by the embodiment comprises a circuit board body and an anti-tear film, wherein the circuit board body comprises a bending area and a bonding area, the bending area is provided with a first edge and a second edge, the first edge of the bending area is provided with the first anti-tear film, the second edge of the bending area is provided with the second anti-tear film, the first anti-tear film is provided with a first notch, the second anti-tear film is provided with a second notch, the first notch and the second notch are symmetrically arranged on the circuit board body, the flexible circuit board can control the bending position of the bending area of the flexible circuit board by arranging the first anti-tear film on the first edge and the second anti-tear film on the second edge of the bending area of the circuit board body, and by arranging the first notch and the second notch symmetrically on the first edge and the second edge of the bending area of the circuit board body, the problem of off normal when having avoided the flexible circuit board equipment.
In a specific embodiment, the circuit board body 1 has a first face and a second face opposite to the first face; the first tear resistant film 21 covers the first and second faces at the first edge of the inflection zone 11, and the second tear resistant film 22 covers the first and second faces at the second edge of the inflection zone 11. First tear-proof membrane 21 and second tear-proof membrane 22 have avoided the damaged condition in FPC edge, and this embodiment is through first face and the second face at the first edge with first tear-proof membrane 21 cover the district of buckling, and second tear-proof membrane 22 covers the first face and the second face at the second edge of the district of buckling for FPC is higher at the anti damaged strength of the in-process of buckling.
Fig. 3 is a schematic structural diagram of a flexible circuit board according to an embodiment of the present invention, and fig. 4 is a schematic structural diagram of a flexible circuit board and a screen body bonding according to an embodiment of the present invention, please refer to fig. 3 and fig. 4, alternatively, in a specific embodiment, the number of the first notches 211 is two, the number of the second notches 221 is two, a first interval anti-tear film 212 with a preset length is disposed between the two first notches 211, and a second interval anti-tear film 222 with a preset length is disposed between the two second notches. In this embodiment, the first notch 211 on the first tear-resistant film 21 and the second notch 221 on the second tear-resistant film 22 form bending force points when the FPC is bent. For example, the distance between the first notch 211 and the second notch 221 of the FPC is adjusted during bonding with the screen body, so that a first spaced anti-tear film 212 with a preset length is arranged between the two first notches 211, a second spaced anti-tear film 222 with a preset length is arranged between the two second notches, the lengths of the first spaced anti-tear film 212 and the second spaced anti-tear film 222 can determine the bending angle during bending of the FPC, and the positions of the first notch and the second notch can determine the bending position. In this embodiment, the distance between the bending portion and the screen and the bending angle can be adjusted by adjusting the positions of the first notch 211 and the second notch 221.
Further, the first spaced tear-preventing film 212 is located at the middle position of the first tear-preventing film 21, the second spaced tear-preventing film 222 is located at the middle position of the second tear-preventing film 22, and the outer contours of the first spaced tear-preventing film 212 and the second spaced tear-preventing film 222 are both rectangular. The bending position can be adjusted by adjusting the positions of the first notch 211 and the second notch 221, and the bending angle can be adjusted by adjusting the lengths of the first interval tear prevention film 212 and the second interval tear prevention film 222. The first spaced tear-preventing film 212 of the present embodiment is located in the middle of the first tear-preventing film 21, and the second spaced tear-preventing film 222 is located in the middle of the second tear-preventing film 22, so as to adjust the bending position and the bending angle of the middle portion of the bending region 11.
Further, the outer contours of the first notch 211 and the second notch 221 are both rectangular. In this embodiment, the outer contours of the first notch 211 and the second notch 221 are set to be rectangular, so that the manufacturing method is simple.
Optionally, the length of the first tear-resistant film 21 extending towards the inner side of the circuit board body is 0.3-0.6mm, the length of the second tear-resistant film 22 extending towards the inner side of the circuit board body is 0.3-0.6mm, the tear-resistant effect is good, and a technician can preset the lengths of the first tear-resistant film 21 and the second tear-resistant film 22 extending towards the inner side of the circuit board body 1 according to needs.
In one embodiment, referring to FIG. 1, the first edge is parallel to the second edge, the first tear resistant film 21 extends to the first edge of bonding area 12, and the second tear resistant film 22 extends to the second edge of bonding area 12. The first tear-proof film 21 and the second tear-proof film 22 of the present embodiment extend to the bonding region, which not only improves the strength of the FPC in the bending region, but also improves the strength of the FPC in the bonding region.
In a specific embodiment, the first tear resistant film 21 and the second tear resistant film 22 are each a two-layer structure. This embodiment sets up to bilayer structure through first anti-tear film 21 and second anti-tear film 22, and first anti-tear film 21 and second anti-tear film 22 can play the better anti-tear purpose of FPC.
A second aspect of an embodiment of the present invention provides a touch screen structure, which includes the flexible circuit board in the above embodiment.
For example: the flexible circuit board comprises a circuit board body and an anti-tearing film;
the circuit board body is including bending zone and nation decides the district, the circuit board body has relative first edge and second edge, bending zone be provided with first anti-tear membrane on the first edge, bending zone be provided with second anti-tear membrane on the second edge, first breach has on the first anti-tear membrane, the second breach has on the second anti-tear membrane, first breach with the second breach is in bending zone goes up the symmetry and sets up.
The touch screen structure that this embodiment provided includes above-mentioned flexible circuit board, this flexible circuit board sets up first anti-tear membrane through setting up on the first edge in the district of buckling at the circuit board body, the second edge sets up second anti-tear membrane, the edge that has reduced the flexible circuit board district is at the damaged condition of the in-process of buckling, through set up symmetrical first breach and second breach on the first edge in the district of buckling at the circuit board body and second edge, can control the position of buckling in flexible circuit board district, the problem of off normal when the touch screen structure is assembled of flexible circuit board has been avoided.
A third aspect of embodiments of the present invention provides a terminal, which includes the touch screen structure in the above embodiments.
The terminal that this embodiment provided includes above-mentioned touch-sensitive screen structure, and the touch-sensitive screen structure at this terminal has reduced the damaged condition of edge at the in-process of buckling of flexible circuit board bending zone when the equipment, can control the position of buckling of flexible circuit board bending zone moreover, has avoided the problem of flexible circuit board off normal.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A flexible circuit board, characterized in that:
the circuit board comprises a circuit board body and an anti-tear film;
the circuit board body is including bending zone and nation decides the district, the circuit board body has relative first edge and second edge, bending zone be provided with first anti-tear membrane on the first edge, bending zone be provided with second anti-tear membrane on the second edge, first breach has on the first anti-tear membrane, the second breach has on the second anti-tear membrane, first breach with the second breach is in bending zone goes up the symmetry and sets up.
2. The flexible circuit board of claim 1, wherein: the circuit board body is provided with a first surface and a second surface opposite to the first surface;
the first tear resistant film covers first and second faces at the first edge of the inflection zone, and the second tear resistant film covers first and second faces at the second edge of the inflection zone.
3. The flexible circuit board of claim 2, wherein: the first notches are two in number, the second notches are two in number, a first interval anti-tearing film with a preset length is arranged between the first notches, and a second interval anti-tearing film with a preset length is arranged between the second notches.
4. The flexible circuit board of claim 3, wherein: the first interval anti-tearing film is located in the middle of the first anti-tearing film, the second interval anti-tearing film is located in the middle of the second anti-tearing film, and the outer contours of the first interval anti-tearing film and the second interval anti-tearing film are both rectangular.
5. The flexible circuit board of claim 4, wherein: the shapes of the outer contours of the first notch and the second notch are both rectangular.
6. The flexible circuit board of claim 1, wherein: the length of the first anti-tear film extending towards the inner side of the circuit board body is 0.3-0.6 mm; the second anti-tear film extends towards the inner side of the circuit board body for 0.3-0.6 mm.
7. The flexible circuit board of any one of claims 1-6, wherein: the first edge is parallel to the second edge, the first tear resistant film extends to the first edge of the bonding region, and the second tear resistant film extends to the second edge of the bonding region.
8. The flexible circuit board of claim 7, wherein: the first tear resistant film and the second tear resistant film are both bilayer films.
9. A touch screen structure, its characterized in that: the touch screen structure comprises the flexible circuit board of any one of claims 1-8.
10. A terminal, characterized by: the terminal comprising the touch screen structure of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501004.4A CN114340141A (en) | 2021-12-09 | 2021-12-09 | Flexible circuit board, touch screen structure and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501004.4A CN114340141A (en) | 2021-12-09 | 2021-12-09 | Flexible circuit board, touch screen structure and terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114340141A true CN114340141A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111501004.4A Pending CN114340141A (en) | 2021-12-09 | 2021-12-09 | Flexible circuit board, touch screen structure and terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN114340141A (en) |
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|---|---|---|---|---|
| US20090231816A1 (en) * | 2008-03-07 | 2009-09-17 | Qualcomm Mems Technologies, Inc. | System and method of preventing damage to metal traces of flexible printed circuits |
| CN205611040U (en) * | 2016-02-01 | 2016-09-28 | 深圳市精诚达电路科技股份有限公司 | Prevent FPC circuit board of marginal laceration |
| CN206835453U (en) * | 2017-06-13 | 2018-01-02 | 深圳市科昂精密电子有限公司 | A kind of double-faced flexible wiring board |
| CN206851137U (en) * | 2017-07-07 | 2018-01-05 | 信利半导体有限公司 | A kind of full duration reinforcing flexible circuit board |
| CN107592738A (en) * | 2017-09-11 | 2018-01-16 | 广东欧珀移动通信有限公司 | A kind of flexible PCB and preparation method thereof, electronic equipment |
| CN111512706A (en) * | 2017-12-28 | 2020-08-07 | 日立汽车***株式会社 | Electronic circuit board and electronic circuit device |
| CN213462440U (en) * | 2020-11-05 | 2021-06-15 | 深圳市昇科科技有限公司 | Anti-fracture flexible circuit board |
| CN213482608U (en) * | 2020-09-28 | 2021-06-18 | 万年联创显示科技有限公司 | Flexible circuit board and liquid crystal display module |
-
2021
- 2021-12-09 CN CN202111501004.4A patent/CN114340141A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090231816A1 (en) * | 2008-03-07 | 2009-09-17 | Qualcomm Mems Technologies, Inc. | System and method of preventing damage to metal traces of flexible printed circuits |
| CN205611040U (en) * | 2016-02-01 | 2016-09-28 | 深圳市精诚达电路科技股份有限公司 | Prevent FPC circuit board of marginal laceration |
| CN206835453U (en) * | 2017-06-13 | 2018-01-02 | 深圳市科昂精密电子有限公司 | A kind of double-faced flexible wiring board |
| CN206851137U (en) * | 2017-07-07 | 2018-01-05 | 信利半导体有限公司 | A kind of full duration reinforcing flexible circuit board |
| CN107592738A (en) * | 2017-09-11 | 2018-01-16 | 广东欧珀移动通信有限公司 | A kind of flexible PCB and preparation method thereof, electronic equipment |
| CN111512706A (en) * | 2017-12-28 | 2020-08-07 | 日立汽车***株式会社 | Electronic circuit board and electronic circuit device |
| CN213482608U (en) * | 2020-09-28 | 2021-06-18 | 万年联创显示科技有限公司 | Flexible circuit board and liquid crystal display module |
| CN213462440U (en) * | 2020-11-05 | 2021-06-15 | 深圳市昇科科技有限公司 | Anti-fracture flexible circuit board |
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