CN210093658U - Flexible circuit board, display panel and device - Google Patents
Flexible circuit board, display panel and device Download PDFInfo
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- CN210093658U CN210093658U CN201920509274.1U CN201920509274U CN210093658U CN 210093658 U CN210093658 U CN 210093658U CN 201920509274 U CN201920509274 U CN 201920509274U CN 210093658 U CN210093658 U CN 210093658U
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Abstract
The utility model provides a flexible circuit board, a display panel and a device, wherein the flexible circuit board comprises a first input part; the first output part is arranged on the first input part and electrically connected with the first input part, and the first input part and the first output part are respectively arranged on different sides of the flexible circuit board; the first output part comprises a plurality of first output terminals, and the distance between each first output terminal in at least one first output part and the top end of the first output part is different. The utility model discloses a flexible circuit board, display panel and device can reduce the consumption of connecting wire and reduce the decay of signal.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a show technical field, especially relate to a flexible circuit board, display panel and device.
[ background of the invention ]
With the development of a full-screen, in order to increase the screen occupation ratio, the width of the lower boundary of the display screen needs to be reduced, as shown in fig. 1, a conventional Chip On Glass (COG) module includes a substrate 10, a display area 11, a driver chip 20 located below the display area 11, and a Flexible Printed Circuit (FPC) 30; the size of the lower frame is composed of the width a of the FPC bonding area, the width (WOA area width) b between the flexible circuit board and the FPC, the width c of the driving chip 20 and the width d of the fan-out line of the data line.
However, the frame size of such a display panel structure is relatively large, and thus the structure shown in fig. 2 appears. The lower frame size of the display panel in fig. 2 mainly consists of the width d of the fan-out line of the data line and the width c of the driving chip 20, and in conjunction with fig. 3, the output terminal 31 of the flexible circuit board 30 is connected to the pin 21 of the driving chip 20 through the connecting line 32. Although the width of the lower bezel is effectively reduced, the length of the connection line (WOA trace) 32 is long, and the connection line 32 includes two vertical portions and a horizontal portion, resulting in a large impedance of the connection line. And as the number of the pins of the driving chip is increased, the impedance of the connecting line corresponding to the pin which is closer to the inner side of the IC is higher, so that the attenuation of signals and the power consumption are increased.
Therefore, it is desirable to provide a flexible circuit board, a display panel and a device, so as to solve the problems in the prior art.
[ Utility model ] content
An object of the utility model is to provide a flexible circuit board, display panel and device can reduce the consumption of connecting wire and reduce the decay of signal.
In order to solve the above technical problem, the utility model provides a flexible circuit board, it includes:
a first input section;
the first output part is arranged on the first input part and electrically connected with the first input part, and the first input part and the first output part are respectively arranged on different sides of the flexible circuit board; the first output part comprises a plurality of first output terminals, and the distance between each first output terminal in at least one first output part and the top end of the first output part is different.
The utility model provides a display panel, it includes the display area territory and binds the region, it is provided with a plurality of second input terminal, and is a plurality of to bind the region both sides, at least wherein each second input terminal of one side with bind regional lower limb's distance different, the second input terminal is used for binding flexible circuit board display panel is last.
The utility model also provides a display device, it includes above-mentioned display panel.
The utility model discloses a flexible circuit board, a display panel and a device, wherein the flexible circuit board comprises a first input part; the first output part is arranged on the first input part and electrically connected with the first input part, and the first input part and the first output part are respectively arranged on different sides of the flexible circuit board; wherein the first output portion comprises a plurality of first output terminals, and the distance between each first output terminal in at least one of the first output portions and the top end of the first output portion is different; because the distances between the first output terminals in the at least one output part and the top ends of the first output parts are different, the length of the connecting line is reduced, the impedance of the connecting line is reduced, and the power consumption of the connecting line and the attenuation of signals are reduced.
[ description of the drawings ]
FIG. 1 is a schematic diagram of a first structure of a conventional display panel;
FIG. 2 is a diagram illustrating a second structure of a conventional display panel;
FIG. 3 is an enlarged view of area A of FIG. 2;
fig. 4 is a schematic structural diagram of the display panel of the present invention;
FIG. 5 is a first enlarged view of area A of FIG. 4;
FIG. 6 is a second enlarged view of area A of FIG. 4;
fig. 7 is a third enlarged view of the area a in fig. 4.
Fig. 8 is a fourth enlarged view of the area a in fig. 4.
[ detailed description ] embodiments
The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
Referring to fig. 4 to 8, fig. 4 is a schematic structural diagram of a display panel according to the present invention.
The flexible circuit board 40 of the present invention is used to connect the driving chip 20 and a circuit board (not shown in the figure).
The flexible circuit board 40 includes: two first output parts 41 and a first input part 42, the first input part 42 and the first output part 41 are respectively arranged on different sides of the flexible circuit board. Wherein the first input portion 41 includes a plurality of first input terminals (not shown in the figure). It is of course understood that the number of the output portions 41 is not limited to two.
The first output portion 41 is disposed on the first input portion 42, the first output portion 41 is electrically connected to the first input portion 42, wherein two first output portions 41 are respectively located at two opposite sides of the flexible circuit board 40; referring to fig. 5, the first output portion 41 includes a plurality of first output terminals, and a distance between each first output terminal 43 of at least one of the first output portions 41 and a top end of the first output portion 41 is different. For example, from left to right, the distances between the first output terminal 43 and the top end of the first output portion are h1 to h6, and h1 to h6 are not equal. Of course, the heights of h1 to h6 are different, and do not need to be changed regularly.
As shown in fig. 5 or 6, in order to further reduce the length of the connection line, the distance between the first output terminal 43 in one of the first output parts 41 and the top end (point M) of the first output part 41 is gradually increased along the preset direction. The preset direction may be a left-to-right direction or a right-to-left direction. For example, in one embodiment, the height of one or both of the first output portions 41 gradually increases in a direction extending to both sides along the geometric center of the driving chip 20. For example, the height of the first output portion 41 gradually increases from the middle to the left, and the height of the first output portion 41 gradually increases from the middle to the right. The first output terminal 43 is disposed at the top end of the first output portion 41, and the manufacturing process can be simplified, thereby reducing the manufacturing cost.
The first output portion 41 is electrically connected to the first input portion 42. Referring to fig. 5 to 8, the first output unit 41 is connected to the driving chip 20 through a plurality of connecting wires 50.
In one embodiment, in order to simplify the manufacturing process, the first output portion 41 has a right trapezoid shape, and the top edge 44 of the first output portion 41 is inclined with respect to the horizontal line. The included angle between the left first output portion 41 and the horizontal line is an obtuse angle, and the included angle between the right first output portion 41 and the horizontal line is an acute angle. Wherein the side edge of the first output portion 41 is perpendicular to the bottom edge of the first output portion 41, and the top edge 44 of the first output portion 41 is inclined to the side edge of the first output portion 41. Of course, it is understood that the shape of the first output portion 41 is not limited to a right trapezoid, and may be other shapes.
Wherein, in order to further reduce the length of the connection line, the first output part 41 comprises a plurality of first output terminals 43, wherein the plurality of first output terminals 43 are arranged in parallel.
And the top edge (uppermost edge) of the first output terminal 43 abuts against the top edge 44 of the first output portion 41. In order to further reduce the length of the connection line, in one embodiment, a plurality of the first output terminals 43 are located at the top end of the first output portion 41. For example, the top edge of the first output terminal abuts against the top edge 44 of the first output portion 41, and a connection line in the vertical direction near the flexible circuit board side can be omitted. It will be appreciated that the top edge 44 of the first output portion 41 may be curved or otherwise shaped, and the top edge of the first output terminal 43 may be curved or otherwise shaped.
To improve the stability of the connection, the top edge of the first output terminal 43 is parallel to the top edge 44 of the first output portion 41. As shown in fig. 5 to 8, in one embodiment, the first output terminal 43 has a rectangular trapezoid or a rectangle shape. Of course, the shape of the first output terminal 43 may be other shapes.
In order to further reduce the impedance of the connection line, the first input terminal and the first output terminal 43 are connected by a trace, and the material of the trace includes at least one of copper, gold, and silver. Wherein the first input terminal corresponds to the first output terminal 43.
It can be understood that the structure of the first output portion 41 on the right side of the driving chip 20 is the same as that of the first output portion 41 on the left side, and in an embodiment, the two are symmetrically arranged with respect to the vertical line, which is not described herein again. It is understood that the structure of the first output portion 41 on the right side of the driving chip 20 may also be the same as that in fig. 2.
Because the structure of the existing flexible circuit board is improved, particularly, the distance between the output terminal in at least one output part and the top end of the first output part is different, a connecting wire in the vertical direction close to the side of the flexible circuit board can be omitted, the length of the connecting wire is reduced, the impedance of the connecting wire is reduced, and the power consumption of the connecting wire and the attenuation of signals are reduced.
Returning to fig. 4, the utility model provides a display panel includes display area 11 and binds regional 101, it is provided with a plurality of second input terminal (not shown in the figure) to bind regional 101, and is a plurality of the second input terminal is located bind regional 101's both sides, at least wherein each second input terminal of one side with the distance of binding regional lower limb is different, the second input terminal is used for binding flexible circuit board 40 on the display panel. The flexible circuit board 40 is any one of the flexible circuit boards described above. Of course, the maximum height of the first output portion 41 cannot exceed the top of the binding region 101.
The display panel may further include: the driving chip 20 may further include a substrate 10, and the display region 11, the driving chip 20 and the flexible circuit board 40 are disposed on the substrate 10.
The display area 11 includes a plurality of data lines and scan lines, and the driving chip 20 is electrically connected to the display area 11, for example, the driving chip 20 is connected to the data lines of the display area 11. Referring to fig. 5 to 8, the driving chip 20 includes a plurality of pins 21. The pin 21 is connected to the first output terminal 43 through a connection line 50. The number of first output terminals 43 matches the number of pins 21. The driving chip 20 may further include an access terminal near the display region side, the access terminal being connected with the data line.
The two first output portions 41 are disposed on two sides of the driving chip 20, specifically, on two sides of the pin 21.
As shown in fig. 5 to 7, the connection line 50 includes a horizontal portion 51 and a vertical portion 52 connected to each other. Wherein the other end of the horizontal portion 51 is connected to the first output terminal 43. The other end of the vertical portion 52 is connected to the pin 21. In one embodiment, the connecting line 50 has an inverted L-shape. In some embodiments, the connection lines 50 and the bonding terminals on the substrate may be distributed on different metal layers, for example, the connection lines 50 are formed on the metal layer below the bonding terminals in fig. 6, and the lines are exchanged to the metal layer where the bonding terminals are located through the through holes, so as to avoid short circuit between the connection lines at the bonding terminals for the flexible circuit board.
As shown in fig. 8, the connection line 50 may be disposed obliquely with respect to the horizontal line.
In order to further reduce power consumption and reduce attenuation of high frequency signals, the impedance of the connection line 50 is greater than the impedance of the traces in the flexible circuit board 40. In an embodiment, the cross-sectional structure of the connection line 50 includes Mo, Al, and Mo, and the material of the trace in the flexible circuit board 40 includes at least one of copper, gold, and silver.
The utility model also provides a display device, it includes above-mentioned display panel. The display device may include a backlight module.
The utility model discloses a flexible circuit board, a display panel and a device, wherein the flexible circuit board comprises a first input part; the first output part is arranged on the first input part and electrically connected with the first input part, and the first input part and the first output part are respectively arranged on different sides of the flexible circuit board; wherein the first output portion comprises a plurality of first output terminals, and the distance between each first output terminal in at least one of the first output portions and the top end of the first output portion is different; because the distances between the first output terminals in the at least one output part and the top ends of the first output parts are different, the length of the connecting line is reduced, the impedance of the connecting line is reduced, and the power consumption of the connecting line and the attenuation of signals are reduced.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (17)
1. A flexible circuit board, comprising:
a first input section;
the first output part is arranged on the first input part and electrically connected with the first input part, and the first input part and the first output part are respectively arranged on different sides of the flexible circuit board; the first output part comprises a plurality of first output terminals, and the distance between each first output terminal in at least one first output part and the top end of the first output part is different.
2. The flexible circuit board of claim 1,
along the preset direction, the distance between the first output terminal in at least one of the first output parts and the top end of the first output part is gradually increased.
3. The flexible circuit board of claim 2,
the first output part is in the shape of a right trapezoid, and the top edge of the first output part is obliquely arranged relative to the horizontal line.
4. The flexible circuit board according to claim 3, wherein a top edge of the first output terminal is parallel to a top edge of the first output portion.
5. The flexible circuit board according to claim 4, wherein the first output terminal has a right trapezoid or a rectangle shape.
6. The flexible circuit board of claim 1,
the first input part comprises a plurality of first input terminals, the first input terminals are connected with the first output terminals through wires, and the wires are made of at least one of copper, gold and silver.
7. The display panel is characterized by comprising a display area and a binding area, wherein the binding area is provided with a plurality of second input terminals, the second input terminals are positioned on two sides of the binding area, the distances between the second input terminals on at least one side and the lower edge of the binding area are different, and the second input terminals are used for binding a flexible circuit board on the display panel.
8. The display panel according to claim 7, wherein the flexible circuit board comprises:
a first input section;
the first output part is arranged on the first input part and electrically connected with the first input part, and the first input part and the first output part are respectively arranged on different sides of the flexible circuit board; the first output part comprises a plurality of first output terminals, and the distance between each first output terminal in at least one first output part and the top end of the first output part is different.
9. The display panel according to claim 8,
along the preset direction, the distance between the first output terminal in at least one of the first output parts and the top end of the first output part is gradually increased.
10. The display panel according to claim 8,
the first output part is in the shape of a right trapezoid, and the top edge of the first output part is obliquely arranged relative to the horizontal line.
11. The display panel according to claim 10, wherein a top edge of the first output terminal is parallel to a top edge of the first output portion.
12. The display panel according to claim 11, wherein the first output terminal has a rectangular trapezoid or a rectangle shape.
13. The display panel according to claim 7, wherein the bonding area is provided with a driving chip, and the driving chip comprises a plurality of pins, and the pins are connected with the first output terminals through connecting wires.
14. The display panel according to claim 13, wherein the first output terminal is provided on both sides of the pin.
15. The display panel according to claim 13, wherein the connecting lines have an impedance greater than an impedance of the traces in the flexible circuit board.
16. The display panel according to claim 15,
the cross-sectional structure of the connecting wire comprises Mo, Al and Mo, and the material of the wire in the flexible circuit board comprises at least one of copper, gold and silver.
17. A display device characterized by comprising the display panel according to any one of claims 7 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920509274.1U CN210093658U (en) | 2019-04-15 | 2019-04-15 | Flexible circuit board, display panel and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920509274.1U CN210093658U (en) | 2019-04-15 | 2019-04-15 | Flexible circuit board, display panel and device |
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| Publication Number | Publication Date |
|---|---|
| CN210093658U true CN210093658U (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920509274.1U Active CN210093658U (en) | 2019-04-15 | 2019-04-15 | Flexible circuit board, display panel and device |
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| CN (1) | CN210093658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110012592A (en) * | 2019-04-15 | 2019-07-12 | 武汉华星光电技术有限公司 | A kind of flexible circuit board, display panel and device |
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2019
- 2019-04-15 CN CN201920509274.1U patent/CN210093658U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110012592A (en) * | 2019-04-15 | 2019-07-12 | 武汉华星光电技术有限公司 | A kind of flexible circuit board, display panel and device |
| CN110012592B (en) * | 2019-04-15 | 2024-03-29 | 武汉华星光电技术有限公司 | Flexible circuit board, display panel and device |
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