CN215935193U - Flexible circuit board and display device - Google Patents
Flexible circuit board and display device Download PDFInfo
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- CN215935193U CN215935193U CN202121709223.7U CN202121709223U CN215935193U CN 215935193 U CN215935193 U CN 215935193U CN 202121709223 U CN202121709223 U CN 202121709223U CN 215935193 U CN215935193 U CN 215935193U
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- circuit board
- flexible
- reinforcing plate
- protrusion
- board body
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Abstract
The utility model relates to a flexible circuit board and a display device, the flexible circuit board is used for electrically connecting a display module with a main circuit board, the flexible circuit board comprises a circuit board body, the circuit board body comprises a first end used for being connected with the display module, and a second end for connection to the main circuit board, the second end having oppositely disposed first and second surfaces, the first surface is provided with a connector, the second surface is provided with a reinforcing plate, the reinforcing plate comprises a main body, in a first direction, the main body is provided with a first side and a second side which are oppositely arranged, the first side and the second side are both provided with at least one first bulge which is arranged at intervals and extends along the first direction, the orthographic projection of the first bulge on the circuit board body is positioned outside the circuit board body; wherein the first direction is a direction from the first end to the second end.
Description
Technical Field
The utility model relates to the technical field of display product manufacturing, in particular to a flexible circuit board and a display device.
Background
The flexible Circuit Board comprises a flexible Circuit Board body and an FPC (flexible Printed Circuit) connector arranged on the flexible Circuit Board body, wherein the FPC connector is used for connecting a PCB (Printed Circuit Board, short for Printed Circuit Board) and an FPC (flexible Printed Circuit Board) so as to realize mechanical and electrical connection of the PCB and the FPC. In a FPC connector setting mode, the FPC connector is arranged on one side of a flexible circuit board body, a reinforcing plate is arranged on the other side of the flexible circuit board body, the flexibility of the FPC is mainly solved by the reinforcing plate, and the strength of a splicing part is improved. The size of general SUS (reinforcing plate) is smaller than the size of the flexible circuit board body, the maximum size is the size of the flexible circuit board body, the part of the flexible circuit board body exceeding the reinforcing plate has no copper layer, is PI and glue layer, the thickness of the part of the flexible circuit board body exceeding the reinforcing plate is 0.08-01mm, and the flexible circuit board body is easy to deform.
SUMMERY OF THE UTILITY MODEL
In order to solve the above technical problems, the present invention provides a flexible printed circuit and a display device, which solve the problem that the size of a reinforcing plate is smaller than the size of a flexible printed circuit body, so that the flexible printed circuit is easy to deform.
In order to achieve the purpose, the embodiment of the utility model adopts the technical scheme that: a flexible circuit board is used for electrically connecting a display module with a main circuit board and comprises a circuit board body, wherein the circuit board body comprises a first end used for being connected with the display module and a second end used for being connected with the main circuit board, the second end is provided with a first surface and a second surface which are oppositely arranged, the first surface is provided with a connector, the second surface is provided with a reinforcing plate,
the reinforcing plate comprises a main body, wherein the main body is provided with a first side and a second side which are oppositely arranged in a first direction, the first side and the second side are both provided with at least one first bulge which is arranged at intervals, the first bulge extends along the first direction, and the orthographic projection of the first bulge on the circuit board body is positioned outside the circuit board body;
wherein the first direction is a direction from the first end to the second end.
Optionally, the first protrusion on the first side and the first protrusion on the second side are symmetrically disposed.
Optionally, the first protrusion on the first side and the first protrusion on the second side are disposed in a staggered manner in a direction perpendicular to the first direction.
Optionally, the width of the first protrusion in the first direction is 0.5-1.5 mm.
Optionally, the length of the first protrusion in a direction perpendicular to the first direction is 0.5-2 mm.
Optionally, an orthographic projection of the main body in a direction perpendicular to the circuit board body is located in the circuit board body, and a distance between an edge of the main body and an edge of the corresponding circuit board body is 0.5-1 mm.
Optionally, the thickness of the reinforcing plate is 0.15-0.3 mm.
Optionally, the second end of the circuit board body has a third side and a fourth side in the first direction, a second protrusion is disposed on each of the third side and the fourth side, the shape of the second protrusion conforms to the shape of the first protrusion, and an orthographic projection of the first protrusion in a direction perpendicular to the circuit board body is located on the second protrusion.
The utility model also provides a display device which comprises a display module and a main circuit board, wherein the display module is connected with the main circuit board through the flexible circuit board.
Optionally, the reinforcing plate further comprises a shell, and the shell is provided with a position avoiding groove with a shape conforming to that of the reinforcing plate.
Optionally, a gap between the sidewall of the avoiding groove and the reinforcing plate is 0.1-0.15 mm.
The utility model has the beneficial effects that: through with first bellied setting on the stiffening plate, the size of local expansion stiffening plate, deformation is avoided to the intensity of increase flexible line way board.
Drawings
Fig. 1 is a schematic structural view of a flexible wiring board in the related art;
FIG. 2 is a schematic diagram of a flexible printed circuit according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a flexible printed circuit according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram III of a flexible printed circuit board according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a flexible printed circuit according to an embodiment of the present invention;
fig. 6 is a schematic view showing a partial structure of a display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model, are within the scope of the utility model.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the size of the reinforcing plate 2 is smaller than that of the flexible printed circuit board body 1, and the portion of the flexible printed circuit board body 1 beyond the reinforcing plate 2 has no copper layer, and is PI and glue layer, so that the flexible printed circuit board is easy to deform. And because the size of stiffening plate 2 is less than the size of flexible line way board body 1, in order to avoid deformation, the design also can dodge at the corresponding position on the complete machine casing, has reduced the stability of flexible line way board like this, under the influence of external force, for example the touch-control, easily receive the influence of fine motion, produce deformation (flexible display, the touch screen is thinner, the deformation is big after the atress, can transmit the touch-control power to inside the complete machine for the complete machine internal environment is in the state of fine motion always).
As shown in fig. 2-6, in order to solve the above problem, the present embodiment provides a flexible printed circuit for electrically connecting a display module with a main printed circuit, the flexible printed circuit includes a printed circuit board body, the printed circuit board body includes a first end for connecting with the display module and a second end for connecting with the main printed circuit, the second end has a first surface and a second surface opposite to each other, the first surface is provided with a connector 3, the second surface is provided with a reinforcing plate 2,
the reinforcing plate 2 comprises a main body 21, in a first direction, the main body 21 is provided with a first side and a second side which are oppositely arranged, the first side and the second side are both provided with at least one first protrusion 22 which is arranged at intervals, the first protrusion 22 extends along the first direction, and the orthographic projection of the first protrusion 22 on the circuit board body is positioned outside the circuit board body;
wherein the first direction is a direction from the first end to the second end.
By adopting the technical scheme, the maximum appearance of the flexible circuit board is not the flexible circuit board body 1 any more through the arrangement of the first bulges 22, and the reinforcing plate 2 can be clamped with the corresponding part of the whole machine shell through the arrangement of the first bulges 22, so that the rigidity of contact with the whole machine is ensured, the accuracy of the assembling position of the flexible circuit board is ensured, and the micro-motion influence from the outside during use is reduced.
The specific distribution form and the number of the first protrusions 22 may be set according to actual needs, and in some embodiments of this embodiment, the first protrusions 22 on the first side and the first protrusions 22 on the second side are symmetrically disposed, referring to fig. 3.
In some embodiments of this embodiment, the first protrusion 22 on the first side and the first protrusion 22 on the second side are offset in a direction perpendicular to the first direction, refer to fig. 4.
In some embodiments of this embodiment, the first protrusion 22 is also disposed on a third side of the main body 21 adjacent to the first side, so as to enhance stability.
It should be noted that the number of the first protrusions 22 may be set as required, but the number is too large, which interferes with other components and affects the spatial distribution of other components, and in this embodiment, it is preferable that one first protrusion 22 is disposed on the first side, and one first protrusion 22 is disposed on the second side.
In the present embodiment, the width of the first protrusion 22 in the first direction is 0.5-1.5 mm.
In the present embodiment, the length of the first protrusion 22 in the direction perpendicular to the first direction is, for example, 0.5 to 2 mm.
The reinforcing plate 2 is attached to the flexible circuit board body 1 in an attaching mode, and due to the limitation of attaching process precision, a certain attaching tolerance exists, so that the size of the main body 21 of the reinforcing plate 2 is smaller than that of the flexible circuit board body 1 in order to reduce the process difficulty. However, in order to ensure the strength of the flexible printed circuit board, the difference between the size of the main body 21 of the reinforcing plate 2 and the size of the flexible printed circuit board body 1 cannot be too large, and in this embodiment, for example, the orthographic projection of the main body 21 in the direction perpendicular to the flexible printed circuit board body is located in the flexible printed circuit board body, and the distance between the edge of the main body 21 and the corresponding edge of the flexible printed circuit board body is 0.5-1 mm.
In the embodiment, the thickness of the reinforcing plate 2 is 0.15-0.3 mm.
Referring to fig. 5, in this embodiment, the second end of the circuit board body has a third side and a fourth side in the first direction, a second protrusion 11 is disposed on each of the third side and the fourth side, the shape of the second protrusion 11 matches the shape of the first protrusion 22, and an orthographic projection of the first protrusion 22 in a direction perpendicular to the circuit board body is located on the second protrusion 11.
With the above technical solution, compared with the technical solution in fig. 1, the offset in the second direction perpendicular to the first direction is reduced.
The utility model also provides a display device which comprises a display module and a main circuit board, wherein the display module is connected with the main circuit board through the flexible circuit board.
Referring to fig. 6, in the present embodiment, the display device further includes a housing, and the housing is provided with a clearance groove having a shape corresponding to the shape of the reinforcing plate 2.
The arrangement of the avoiding groove effectively solves the problem of position deviation caused by the influence of external force.
In the embodiment, the gap between the sidewall of the avoiding groove and the reinforcing plate 2 is 0.1-0.15 mm.
The display device may be: the display device comprises any product or component with a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet personal computer and the like, wherein the display device further comprises a flexible circuit board, a printed circuit board and a back plate.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.
Claims (11)
1. A flexible circuit board is used for electrically connecting a display module with a main circuit board, the flexible circuit board comprises a circuit board body, the circuit board body comprises a first end used for being connected with the display module and a second end used for being connected with the main circuit board, the second end is provided with a first surface and a second surface which are oppositely arranged, the first surface is provided with a connector, the second surface is provided with a reinforcing plate, the flexible circuit board is characterized in that,
the reinforcing plate comprises a main body, wherein the main body is provided with a first side and a second side which are oppositely arranged in a first direction, the first side and the second side are both provided with at least one first bulge which is arranged at intervals, the first bulge extends along the first direction, and the orthographic projection of the first bulge on the circuit board body is positioned outside the circuit board body;
wherein the first direction is a direction from the first end to the second end.
2. The flexible wiring board of claim 1, wherein the first bump on the first side and the first bump on the second side are symmetrically disposed.
3. The flexible wiring board of claim 1, wherein the first bump on the first side and the first bump on the second side are offset in a direction perpendicular to the first direction.
4. A flexible wiring board according to any one of claims 1 to 3, wherein the width of the first projection in the first direction is 0.5 to 1.5 mm.
5. A flexible wiring board according to any one of claims 1 to 3, wherein the length of the first projection in the direction perpendicular to the first direction is 0.5 to 2 mm.
6. The flexible wiring board of claim 1, wherein an orthographic projection of the main body in a direction perpendicular to the wiring board body is located within the wiring board body, and a distance between an edge of the main body and a corresponding edge of the wiring board body is 0.5-1 mm.
7. The flexible wiring board of claim 1, wherein the thickness of the reinforcing plate is 0.15-0.3 mm.
8. The flexible wiring board of any one of claims 1-3, wherein the second end of the wiring board body has a third side and a fourth side in the first direction, wherein a second protrusion is disposed on each of the third side and the fourth side, wherein the shape of the second protrusion conforms to the shape of the first protrusion, and wherein an orthographic projection of the first protrusion in a direction perpendicular to the wiring board body is located on the second protrusion.
9. A display device, comprising a display module and a main circuit board, wherein the display module is connected to the main circuit board through the flexible circuit board according to any one of claims 1 to 8.
10. The display device according to claim 9, further comprising a housing, wherein the housing is provided with a space-avoiding groove having a shape corresponding to the shape of the reinforcing plate.
11. The display device according to claim 10, wherein a gap between the sidewall of the avoiding groove and the reinforcing plate is 0.1 to 0.15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121709223.7U CN215935193U (en) | 2021-07-26 | 2021-07-26 | Flexible circuit board and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121709223.7U CN215935193U (en) | 2021-07-26 | 2021-07-26 | Flexible circuit board and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215935193U true CN215935193U (en) | 2022-03-01 |
Family
ID=80398369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121709223.7U Active CN215935193U (en) | 2021-07-26 | 2021-07-26 | Flexible circuit board and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215935193U (en) |
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2021
- 2021-07-26 CN CN202121709223.7U patent/CN215935193U/en active Active
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