CN219421165U - Flexible circuit board and display device - Google Patents
Flexible circuit board and display device Download PDFInfo
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- CN219421165U CN219421165U CN202320536649.XU CN202320536649U CN219421165U CN 219421165 U CN219421165 U CN 219421165U CN 202320536649 U CN202320536649 U CN 202320536649U CN 219421165 U CN219421165 U CN 219421165U
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- extension
- circuit board
- flexible circuit
- display
- backlight
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Abstract
The utility model discloses a flexible circuit board which comprises a first extending part, a second extending part and a third extending part which extend in the same direction, wherein the first extending part and the second extending part are integrally connected to the same end of the third extending part and are oppositely arranged in parallel, a display binding structure is arranged at one end of the first extending part, which is away from the third extending part, a backlight inserting structure is arranged at one end of the second extending part, which is away from the third extending part, and an external connecting structure is arranged at one end of the third extending part, which is away from the first extending part and the second extending part. The flexible circuit board is used for realizing electric connection between the display panel of the display device and the control main board of the backlight module and the display terminal, and has good stability. The utility model also provides a display device which comprises the flexible circuit board.
Description
Technical Field
The present utility model relates to display technologies, and in particular, to a flexible circuit board and a display device.
Background
The display device comprises a display panel and a backlight module, wherein the display panel is responsible for providing a display picture, and the backlight module is responsible for providing backlight light rays so as to illuminate the display picture on the display panel. The display panel and the backlight module are both required to be connected to a control main board of the display terminal so as to receive control signals from the control main board.
In order to simplify the connection lines between the display panel and the backlight module and the control main board, a TFT display module is disclosed in chinese patent No. cn201820773083. X, the display module includes a backlight module having a rubber frame, a display panel movably disposed above the rubber frame annular table, and a protective film disposed above the display panel, wherein the edge of the protective film extends outwards and is adhered to the outer side of the rubber frame through an adhesive, so that the display panel is flexibly turned over and then fixed on the backlight module after tearing the protective film during use; the display panel also comprises a display FPC which is bound on the array substrate and is used for binding the binding position, and the display FPC is connected with the control chip of the electronic equipment so as to drive and control the overturning of the liquid crystal; the light-emitting assembly comprises a backlight FPC and a plurality of LED lamps electrically connected to the backlight FPC; and the leading-out end of the backlight FPC is electrically and fixedly connected to the side edge of the display FPC.
The above-mentioned patent is with backlight FPC's of backlight module leading-out terminal electric connection on display panel's display FPC's side, display FPC again with display terminal's control mainboard electric connection, backlight FPC is indirect with display terminal's control mainboard electric connection through display FPC, although can simplify the connecting wire between display panel and backlight module and the control mainboard, but backlight FPC and display FPC's hookup location take place to drop easily, and then influence display stability.
Disclosure of Invention
In order to solve the above-mentioned shortcomings of the prior art, the present utility model provides a flexible circuit board for electrically connecting a display panel and a backlight module of a display device with a control motherboard of a display terminal, and has good stability.
The utility model also provides a display device which comprises the flexible circuit board.
The technical problems to be solved by the utility model are realized by the following technical scheme:
the utility model provides a flexible line way board, includes first extension, second extension and the third extension that the syntropy extends, first extension and second extension an organic whole connect in on the same end of third extension and set up relatively side by side, first extension is dorsad be provided with the demonstration binding structure on the one end of third extension, second extension is dorsad be provided with backlight grafting structure on the one end of third extension, third extension is dorsad be provided with external structure on the one end of first extension and second extension.
Further, the display binding structure comprises a binding golden finger positioned on the second surface of the first extension part, and the binding golden finger is positioned on the edge of one side of the first extension part, which is away from the third extension part.
Further, the display binding structure further comprises a solder resist ink located on the second surface of the first extension portion, wherein the solder resist ink is located on the edge of one side, facing the third extension portion, of the binding golden finger.
Further, the backlight plugging structure comprises a plugging golden finger positioned on the first surface of the second extension part, and the plugging golden finger is positioned on the edge of one side of the second extension part, which is away from the third extension part.
Further, the backlight plugging structure further comprises a first reinforcing area located on the second surface of the second extension portion, and the first reinforcing area corresponds to the plugging golden finger.
Further, the circumscribing structure includes a circumscribing connector on the second surface of the third extension portion.
Further, the external connection structure comprises a second reinforcing area positioned on the first surface of the third extension part, and the second reinforcing area corresponds to the external connection connector.
Further, a first thinning area is arranged at the joint between the first extension part and the display binding structure, a second thinning area is arranged at the joint between the third extension part and the first extension part and the second extension part, and a third thinning area is arranged at the joint between the third extension part and the external structure.
Further, an EMI shielding layer is disposed on the first surface of the third extension.
The display device comprises a display panel, a backlight module and the flexible circuit board, wherein the display panel is arranged above the backlight module, a display binding structure of the flexible circuit board is bound on the display panel, and a backlight plug-in structure of the flexible circuit board is plugged on the backlight module.
The utility model has the following beneficial effects: the flexible circuit board is used for realizing electric connection between a display panel of a display device and a control main board of a backlight module and a display terminal, integrates a display FPC and a backlight FPC in the prior art into the same flexible circuit board to form an integrated structure, binds the display panel by utilizing a display binding structure positioned on the first extension part, and inserts the backlight module by utilizing a backlight inserting structure positioned on the second extension part, and is electrically connected with the control main board by utilizing an external connection structure positioned on the third extension part.
Drawings
Fig. 1 is a schematic structural diagram of a first surface of a flexible circuit board according to the present utility model.
Fig. 2 is a schematic structural diagram of a second surface of the flexible circuit board provided by the utility model.
Fig. 3 is a schematic structural diagram of a first surface of another flexible circuit board according to the present utility model.
Fig. 4 is a schematic structural diagram of a second surface of another flexible circuit board according to the present utility model.
Fig. 5 is a schematic structural diagram of a first surface of another flexible circuit board according to the present utility model.
Fig. 6 is a schematic stacking diagram of a flexible circuit board according to the present utility model.
Fig. 7 is a schematic structural diagram of a display device provided by the present utility model.
Detailed Description
The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
As shown in fig. 1 and 2, a flexible circuit board includes a first extending portion 31, a second extending portion 32 and a third extending portion 33 extending in the same direction, where the first extending portion 31 and the second extending portion 32 are integrally connected to the same end of the third extending portion 33 and are arranged in parallel relatively, a display binding structure 310 is disposed at an end of the first extending portion 31 opposite to the third extending portion 33, a backlight plugging structure 320 is disposed at an end of the second extending portion 32 opposite to the third extending portion 33, and an external connection structure 330 is disposed at an end of the third extending portion 33 opposite to the first extending portion 31 and the second extending portion 32.
The flexible circuit board is used for realizing electric connection between a display panel and a backlight module of the display device and a control main board of the display terminal, integrates a display FPC and a backlight FPC in the prior art into the same flexible circuit board to form an integrated structure, binds the display panel by using a display binding structure 310 positioned on the first extension part 31, inserts the backlight module by using a backlight inserting structure 320 positioned on the second extension part 32, and inserts the control main board by using an external connection structure 330 positioned on the third extension part 33.
The external connection structure 330 may be directly electrically connected to the control motherboard, or indirectly electrically connected to the control motherboard through other flexible circuit boards.
The display bonding structure 310 includes a bonding finger 311 and solder resist ink 312 on the second surface of the first extension 31, the bonding finger 311 being located on a side edge of the first extension 31 facing away from the third extension 33, and the solder resist ink 312 being located on a side edge of the bonding finger 311 facing toward the third extension 33.
The binding golden finger 311 is used for binding with a corresponding binding PAD on the display panel; the solder resist ink 312 covers the binding gold finger 311, and is used for protecting an edge of the binding gold finger 311 facing the third extension portion 33.
The backlight plugging structure 320 includes a plugging golden finger 321 located on a first surface of the second extension portion 32, and a first reinforcing region 322 located on a second surface of the second extension portion 32, where the plugging golden finger 321 is located on an edge of a side of the second extension portion 32 facing away from the third extension portion 33, and the first reinforcing region 322 corresponds to the plugging golden finger 321.
The plugging golden finger 321 is used for plugging with a corresponding plugging connector on the backlight module, and comprises three golden fingers which respectively correspond to a K1 electrode, a K2 electrode and an LEDA electrode of the backlight module; the first reinforcing region 322 is used for enhancing the hardness of the backlight plugging structure 320, so as to prevent the plugging golden finger 321 from being inserted into the plugging connector of the backlight module smoothly due to too soft of the backlight plugging structure 320.
The first reinforcing region 322 may be, but not limited to, a PI film, a steel plate, or a copper-clad film, which is a PI film in this embodiment.
The external connection structure 330 includes an external connection connector 331 located on the second surface of the third extension portion 33, and a second reinforcing region 332 located on the first surface of the third extension portion 33, where the second reinforcing region 332 corresponds to the external connection connector 331.
The external connector 331 is used for connecting with a corresponding connection mother seat on the control main board; the second reinforcement region 332 is used for enhancing the rigidity of the external connection structure 330, so as to prevent the external connection structure 330 from being too soft to mount the external connection connector 331, or from being torn when the external connection connector 331 is mounted.
The second reinforcing region 332 may be, but not limited to, a PI film, a steel plate, or a copper-clad steel plate.
The first surface of the third extension portion 33 is provided with a code scanning area 333 and an information area 334, the code scanning area 333 is used for printing two-dimensional codes, the information area 334 is used for printing circuit board information, and specifically, the code scanning area 333 and the information area 334 can be, but are not limited to, white ink.
The code scanning area 333 is used for a manufacturer to print two-dimension codes to obtain manufacturer information of the flexible circuit board through scanning, and the information area 334 is used for a manufacturer to print circuit board information, such as production information, product size, etc.
Example two
As an optimization scheme of the first embodiment, in this embodiment, as shown in fig. 3 and 4, a first thinning area 34 is disposed at a connection between the first extension portion 31 and the display binding structure 310, a second thinning area 35 is disposed at a connection between the third extension portion 33 and the first extension portion 31 and the second extension portion 32, and a third thinning area 36 is disposed at a connection between the third extension portion 33 and the external connection structure 330.
In this embodiment, the flexible circuit board adopts a double-layer board structure, as shown in fig. 6, including a first film layer 301, a first circuit layer 302, a base film layer 303, a second circuit layer 304 and a second film layer 305 that are stacked in sequence, where the first film layer 301 corresponds to a first surface of the flexible circuit board, and the second film layer 305 corresponds to a second surface of the flexible circuit board; the first film layer 301, the base film layer 303 and the second film layer 305 are PI films, and the first circuit layer 302 and the second circuit layer 304 are copper foils.
The first thinning region 34 is formed by thinning or windowing a first film layer 301 at a connection portion between the first extension portion 31 and the display binding structure 310, the second thinning region 35 is formed by thinning or windowing a first film layer 301 at a connection portion between the third extension portion 33 and the first extension portion 31 and the second extension portion 32, and the third thinning region 36 is formed by thinning or windowing a second film layer 305 at a connection portion between the third extension portion 33 and the external connection structure 330.
Example III
As an optimization of the first embodiment or the second embodiment, in this embodiment, as shown in fig. 5, an EMI shielding layer 335 is disposed on the first surface of the third extension 33.
Preferably, the EMI shielding layer 335 is a metal mesh structure, specifically a mesh copper structure.
Example IV
As shown in fig. 7, a display device includes a display panel 1, a backlight module 2, and the flexible circuit board 3 according to the first, second, or third embodiments, where the display panel 1 is disposed above the backlight module 2, a display binding structure 310 of the flexible circuit board 3 is bound to the display panel 1, and a backlight plugging structure 320 of the flexible circuit board 3 is plugged into the backlight module 2.
Finally, it should be noted that the foregoing embodiments are merely for illustrating the technical solution of the embodiments of the present utility model and are not intended to limit the embodiments of the present utility model, and although the embodiments of the present utility model have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the embodiments of the present utility model may be modified or replaced with the same, and the modified or replaced technical solution may not deviate from the scope of the technical solution of the embodiments of the present utility model.
Claims (10)
1. The utility model provides a flexible line way board, its characterized in that includes first extension, second extension and the third extension that the syntropy extends, first extension and second extension an organic whole connect in on the same end of third extension and set up relatively side by side, first extension is dorsad be provided with the demonstration binding structure on the one end of third extension, second extension is dorsad be provided with backlight grafting structure on the one end of third extension, third extension is dorsad be provided with external structure on the one end of first extension and second extension.
2. The flexible circuit board of claim 1, wherein the display binding structure comprises a binding gold finger on the second surface of the first extension, the binding gold finger being on an edge of a side of the first extension facing away from the third extension.
3. The flexible circuit board of claim 2 wherein the display binding structure further comprises a solder resist ink on the second surface of the first extension, the solder resist ink being on an edge of the binding gold finger that faces the third extension.
4. The flexible circuit board of claim 1, wherein the backlight mating structure comprises a mating gold finger on a first surface of the second extension, the mating gold finger being located on an edge of the second extension that faces away from the third extension.
5. The flexible circuit board of claim 4, wherein the backlight mating structure further comprises a first reinforcing region on the second surface of the second extension, the first reinforcing region corresponding to the mating golden finger.
6. The flexible circuit board of claim 1 wherein the circumscribing structure comprises a circumscribing connector on the second surface of the third extension.
7. The flexible circuit board of claim 6, wherein the circumscribing structure comprises a second reinforcing region on the first surface of the third extension, the second reinforcing region corresponding to the circumscribing connector.
8. The flexible circuit board of claim 1, wherein a first thinning region is provided at a junction between the first extension and the display binding structure, a second thinning region is provided at a junction between the third extension and the first and second extensions, and a third thinning region is provided at a junction between the third extension and the external structure.
9. The flexible circuit board of claim 1, wherein the third extension has an EMI shielding layer disposed on the first surface.
10. The display device is characterized by comprising a display panel, a backlight module and the flexible circuit board according to any one of claims 1-9, wherein the display panel is arranged above the backlight module, a display binding structure of the flexible circuit board is bound on the display panel, and a backlight plug-in structure of the flexible circuit board is plugged on the backlight module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320536649.XU CN219421165U (en) | 2023-03-17 | 2023-03-17 | Flexible circuit board and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320536649.XU CN219421165U (en) | 2023-03-17 | 2023-03-17 | Flexible circuit board and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219421165U true CN219421165U (en) | 2023-07-25 |
Family
ID=87207700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320536649.XU Active CN219421165U (en) | 2023-03-17 | 2023-03-17 | Flexible circuit board and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219421165U (en) |
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2023
- 2023-03-17 CN CN202320536649.XU patent/CN219421165U/en active Active
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