CN209402828U - Printed wiring board, printed wiring board assembly and display panel - Google Patents
Printed wiring board, printed wiring board assembly and display panel Download PDFInfo
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- CN209402828U CN209402828U CN201821982289.1U CN201821982289U CN209402828U CN 209402828 U CN209402828 U CN 209402828U CN 201821982289 U CN201821982289 U CN 201821982289U CN 209402828 U CN209402828 U CN 209402828U
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- printed wiring
- angle
- guide hole
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- 230000007704 transition Effects 0.000 claims 2
- 238000005452 bending Methods 0.000 abstract description 24
- 238000007639 printing Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to a printed wiring board, printed wiring board subassembly and display panel. A printed circuit board is provided with a first surface and a second surface which are vertical to the thickness direction of the printed circuit board, wherein the first surface and the second surface are arranged oppositely; the printed circuit board is provided with a guide hole for the passing of the routing; the guide hole is a through hole and comprises a first section close to the first surface and a second section close to the second surface; the included angle of the joint of the first section and the first surface is an obtuse angle, and the included angle of the joint of the second section and the second surface is an obtuse angle. Above-mentioned printed circuit board, the contained angle of first section and first surface junction is the obtuse angle to the angle of buckling that makes to walk the line in first section and first surface junction is greater than 90 degrees. Similarly, the included angle of the joint of the second section and the second surface is an obtuse angle, so that the bending angle of the wire at the joint of the second section and the second surface is greater than 90 degrees. Thereby effectively reducing the electromagnetic interference phenomenon generated by the wire passing through the guide hole.
Description
Technical field
The utility model relates to field of display driving, more particularly to a kind of printed wiring board, pcb component and
Display panel.
Background technique
Display device includes display screen and the driving circuit to drive display screen.Generally, driving circuit includes printing
Wiring board.According to route needs, guide hole is often set on a printed-wiring board, so that cabling passes through.
However, cabling often generates electromagnetic interference after passing through guide hole, the transmitting of signal is influenced, and then lead to display device
Display is abnormal.
Utility model content
Based on this, it is necessary to provide a kind of printing that can effectively weaken the electromagnetic interference phenomenon that cabling is generated across guide hole
Wiring board.
A kind of printed wiring board, the printed wiring board have the first surface and the second table perpendicular to its thickness direction
Face, the first surface and the second surface are disposed opposite to each other；
There is the guide hole passed through for cabling in the printed wiring board；The guide hole is through-hole, and the guide hole includes close
The second segment of the first segment of the first surface and the close second surface；The first segment is connected with the first surface
The angle at place is obtuse angle, and the angle of the joining place of the second segment and the second surface is obtuse angle.
Above-mentioned printed wiring board, guide hole have the first segment close to first surface and the second segment close to second surface.The
The angle of one section and first surface joining place is obtuse angle, so that bending angle of the cabling in first segment and first surface joining place
Degree is greater than 90 degree.Likewise, the angle of the joining place of second segment and second surface is obtuse angle so that cabling second segment with
The bending angle of second surface joining place is greater than 90 degree.The electromagnetic interference phenomenon that guide hole generates is passed through to effectively weaken cabling.
The guide hole has axis in one of the embodiments, along the direction of second surface to first surface, described the
The distance of axis described in one section of lateral distance is gradually increased；Along the direction of first surface to second surface, the second segment
The distance of axis described in lateral distance is bigger.
The first segment is cone machine hole in one of the embodiments, and/or the second segment is cone machine hole.
The first segment and the first surface of the printed wiring board seamlessly transit in one of the embodiments, and/or
The second segment and the second surface of the printed wiring board seamlessly transit.
The guide hole further includes the third between the first segment and the second segment in one of the embodiments,
Section, the both ends of the third section are connected with the first segment and the second segment respectively.
The both ends of the third section are smoothed with the first segment and the second segment respectively in one of the embodiments,
It crosses.
The third Duan Weicheng circular hole in one of the embodiments,.
The first segment is connected with the second segment in one of the embodiments, the first segment and the second segment
The angle of joining place is greater than 90 degree.
The utility model also provides a kind of pcb component.
A kind of pcb component, including printed wiring board provided by the utility model.
Above-mentioned pcb component, including printed wiring board provided by the utility model, guide hole have close to the first table
The second segment of the first segment in face and close second surface.The angle of first segment and first surface joining place is obtuse angle, so that
Cabling is greater than 90 degree in the bending angle of first segment and first surface joining place.Likewise, second segment and second surface are connected
The angle at place is obtuse angle, so that cabling is greater than 90 degree in the bending angle of second segment and second surface joining place.To have
Effect weakens cabling and passes through the electromagnetic interference phenomenon that guide hole generates.
The utility model also provides a kind of display panel.
A kind of display panel, including display screen and pcb component provided by the utility model.
Above-mentioned display panel, including pcb component provided by the utility model, guide hole have close to first surface
First segment and close to second surface second segment.The angle of first segment and first surface joining place is obtuse angle, so that walking
Line is greater than 90 degree in the bending angle of first segment and first surface joining place.Likewise, the joining place of second segment and second surface
Angle be obtuse angle so that cabling is greater than 90 degree in the bending angle of second segment and second surface joining place.To effectively
Weaken cabling and passes through the electromagnetic interference phenomenon that guide hole generates.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the printed wiring board that an embodiment of the present invention provides；
Fig. 2 is the M-M schematic cross-section of printed wiring board in Fig. 1；
Fig. 3 is the schematic cross-section for the printed wiring board that another embodiment of the utility model provides.
Specific embodiment
Inventor it has been investigated that, cabling pass through guide hole after generate electromagnetic interference phenomenon, be because guide hole side wall and print
The first surface and second surface perpendicular to thickness direction of brush wiring board are vertical, and therefore, cabling passes through guide hole and first surface
Or second surface linking position when can also bend rectangular shape.And the tip meeting launching electronics of rectangular-shaped cabling, and then produce
Raw electromagnetic interference, influences the transmitting of signal, and then causes display device display abnormal.
Based on this, a kind of printed wiring board is inventors herein proposed, printed wiring board has the perpendicular to its thickness direction
One surface and second surface, first surface and second surface are disposed opposite to each other.
There is the guide hole passed through for cabling in printed wiring board；Guide hole is through-hole, and guide hole includes close to the of first surface
One section and close to second surface second segment.The angle of first segment and first surface joining place is obtuse angle, second segment and second
The angle of the joining place on surface is obtuse angle.
Above-mentioned printed wiring board, guide hole have the first segment close to first surface and the second segment close to second surface.The
The angle of one section and the first surface joining place is obtuse angle, so that cabling is in the curved of first segment and first surface joining place
Dog-ear degree is greater than 90 degree.Likewise, the angle of the joining place of the second segment and the second surface is obtuse angle, so that walking
Line is greater than 90 degree in the bending angle of second segment and second surface joining place.The electricity that guide hole generates is passed through to effectively weaken cabling
Magnetic disturbance phenomenon.
It should be noted that above-mentioned printed wiring board only sets the side of first segment and second segment to the axis of guide hole
The size of guide hole is not arranged specifically for distance.Therefore, in practical applications, it can be set as needed the size of guide hole, with full
The demand of sufficient electric current.
In addition, inventor it has been investigated that, cabling rectangular shape bending will lead to the capacitive load of cabling, to slow down
Voltage rising time influences signal quality.And above-mentioned printed wiring board, bending of the cabling in first segment and first surface joining place
Angle is greater than 90 degree, and cabling is greater than 90 degree in the bending angle of second segment and second surface joining place, to reduce the appearance of cabling
Property load improve signal quality to improve voltage rising time.
Furthermore inventor also found through research, and the rectangular shape bending of cabling, the impedance that will cause cabling bending place does not connect
It is continuous.When encountering high-frequency signal, impedance will discontinuously cause signal reflex, serious, will affect data transmission.And above-mentioned print
Brush wiring board, cabling are greater than 90 degree in the bending angle of first segment and first surface joining place, and cabling is in second segment and the second table
The bending angle of face joining place is greater than 90 degree, thus the phenomenon that slowing down cabling bending place impedance discontinuity, thus when encountering height
When frequency signal, signal reflex can be slowed down, and then slow down the influence to data transmission.
It is described in detail below by way of specific embodiment.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
It should be noted that it can directly on the other element when element is referred to as " being fixed on " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more related listed items.
As described in Fig. 1 to Fig. 2, the printed wiring board 100 that an embodiment of the present invention provides, printed wiring board 100 has
There are the first surface 110 and second surface 130 perpendicular to its thickness direction, first surface 110 and second surface 130 are set opposite to each other
It sets.
There is the guide hole 150 passed through for cabling in printed wiring board 100.Specifically, guide hole 150 is through-hole, and guide hole 150 wraps
Include the first segment 151 close to first surface 110 and the second segment 153 close to second surface 130.First segment and first surface are held in the mouth
The angle at the place of connecing is obtuse angle, and the angle of the joining place of second segment and second surface is obtuse angle.
In other words, guide hole 150 has axis 152, with any perpendicular to 100 thickness direction of printed wiring board and by guide hole
The plane of 150 axis 152 does section to printed wiring board 100, and first segment 151 is first side 154 in respective ramp,
The angle a of first side 154 and first surface is the angle of first segment 151 and first surface 110 in the joining place, specific to join
Fig. 2.In the present embodiment, first side 154 is straight line close to the end of first surface 110, therefore first side 154 and first surface
110 angle is the angle of first segment 151 and first surface 110 in the joining place.Certainly, in a further embodiment, if
First side is curve close to the end of first surface, then the tangent line and the first table of the endpoint of the close first surface of first side
The angle in face is the angle of first segment and first surface in the joining place.
Similarly, second segment 153 and the angle of the joining place of second surface 130 are defined as above, the specific folder joined in Fig. 2
Shown in the b of angle, details are not described herein again.
The angle of first segment 151 and 110 joining place of first surface is obtuse angle, so that cabling is in first segment 151 and the
The bending angle of one surface, 110 joining place is greater than 90 degree.Likewise, the angle of the joining place of second segment 153 and second surface 130
For obtuse angle, so that cabling is greater than 90 degree in the bending angle of second segment 153 and 130 joining place of second surface.To effectively
Weaken cabling and passes through the electromagnetic interference phenomenon that guide hole 150 generates.
It should be noted that printed wiring board 100 it is merely exemplary be provided with a guide hole 150, and guide hole be located at printing
The middle position of wiring board 100.Specific in practical application, the specific location of guide hole 150 is set according to actual needs.
In the present embodiment, guide hole 150 has axis 152, along second surface 130 to the direction of first surface 110, first segment
The distance of the axis of 151 lateral distance guide hole 150 is gradually increased；Along first surface 110 to the direction of second surface 130,
The distance of the axis of two section 153 of lateral distance guide hole 150 is bigger.
Certainly, in a further embodiment, side of the side of first segment in the section on printed wire plate thickness direction
Side can also be in structures such as broken line or waves, and the side for being able to satisfy first segment will not make cabling be formed less than or equal to 90 degree
Dog-ear.The side of second segment can also be at similar structure, and details are not described herein again.
Specifically, in the present embodiment, first segment 151 is cone machine hole, and second segment 153 is cone machine hole.Certainly, in other reality
It applies in example, first segment and second segment can not also be poroid in frustum, can also be in other horn-like equal rules or irregular shape
Shape meets closer to first surface, and the distance of the axis of the lateral distance guide hole of first segment is bigger；Closer to second surface,
The distance of the axis of two sections of lateral distance guide hole is bigger.Similarly, in a further embodiment, first segment and second segment
Shape can also be different.
Optionally, in a further embodiment, first segment and the first surface of printed wiring board seamlessly transit, second segment with
The second surface of printed wiring board seamlessly transits.The cabling across guide hole can be so made to be connected in first segment and first surface
Position and second segment and second surface linking position at seamlessly transit, that is, effectively prevent cabling and bend generation in the position
The phenomenon that tip, to increase the intensity of cabling, moreover it is possible to preferably weaken the electromagnetic interference phenomenon of its generation.
In the present embodiment, guide hole 150 further includes the third section 155 between first segment 151 and second segment 153, third
The both ends of section 155 are connected with first segment 151 and second segment 153 respectively.
Optionally, in a further embodiment, the both ends of third section are seamlessly transitted with first segment and second segment respectively, to keep away
Exempt from the phenomenon that cabling generates wedge angle in guide hole, can effectively avoid or weaken the electromagnetic interference that cabling generates in guide hole and is existing
As.
In the present embodiment, third section 153 is in circular hole.153 structure of third section is simple, easy to process.It is understood that
Third section 153 is not limited in circular hole, can also be in other rules or irregular shape, and meeting it will not make cabling lead
The wedge angle less than or equal to 90 degree is formed in hole 150.
In the present embodiment, guide hole 150 is made of for three sections totally first segment 151, second segment 153 and third section 155.It is understood that
, in a further embodiment, guide hole is not limited to be constituted by three sections, can also have by two sections or constitute more than three sections.Below
It is specifically described so that guide hole is constituted by two sections as an example.
As shown in figure 3, the printed wiring board 200 that another embodiment of the utility model provides, not with printed wiring board 100
With in guide hole 250, first segment 251 is connected with second segment 253, and first segment 251 and the angle c of 253 joining place of second segment are big
In 90 degree, i.e., guide hole 250 is only made of for two sections first segment 251 with second segment 253 totally.
An embodiment of the present invention also provides a kind of pcb component comprising printing provided by the utility model
Wiring board.
Above-mentioned pcb component, including printed wiring board provided by the utility model, guide hole have first segment and the
Two sections.Wherein, the angle of first segment and first surface joining place is obtuse angle, so that cabling is held in the mouth in first segment and first surface
The bending angle for meeting place is greater than 90 degree.Likewise, the angle of the joining place of second segment and second surface is obtuse angle, so that walking
Line is greater than 90 degree in the bending angle of second segment and second surface joining place.The electricity that guide hole generates is passed through to effectively weaken cabling
Magnetic disturbance phenomenon.
Certainly, pcb component further includes being set to the component of printed wiring board first surface or second surface and walking
Line, specific component and cabling according to specific needs, are designed, herein not using ordinary skill in the art means
It repeats again.
An embodiment of the present invention also provides a kind of display panel comprising display screen and print provided by the utility model
Brush circuit board module.
It is understood that display panel includes display screen and the drive circuit system to drive display screen.Driving electricity
Road system includes multiple pcb components to realize different function.I.e. pcb component is in display panel
The component part of drive circuit system.
Above-mentioned display panel, including pcb component provided by the utility model, guide hole have close to first surface
First segment and close to second surface second segment.The angle of first segment and first surface joining place is obtuse angle, so that walking
Line is greater than 90 degree in the bending angle of first segment and first surface joining place.Likewise, the joining place of second segment and second surface
Angle be obtuse angle so that cabling is greater than 90 degree in the bending angle of second segment and second surface joining place.To effectively
Weaken cabling and passes through the electromagnetic interference phenomenon that guide hole generates.
Above-mentioned printed wiring board, guide hole have the first segment close to first surface and the second segment close to second surface.The
The angle of one section and first surface joining place is obtuse angle, so that bending angle of the cabling in first segment and first surface joining place
Degree is greater than 90 degree.Likewise, the angle of the joining place of second segment and second surface is obtuse angle so that cabling second segment with
The bending angle of second surface joining place is greater than 90 degree.The electromagnetic interference phenomenon that guide hole generates is passed through to effectively weaken cabling.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of printed wiring board, which is characterized in that the printed wiring board has the first surface perpendicular to its thickness direction
And second surface, the first surface and the second surface are disposed opposite to each other；
There is the guide hole passed through for cabling in the printed wiring board；The guide hole is through-hole, and the guide hole includes close to described
The second segment of the first segment of first surface and the close second surface；The first segment and the first surface joining place
Angle is obtuse angle, and the angle of the joining place of the second segment and the second surface is obtuse angle.
2. printed wiring board according to claim 1, which is characterized in that the guide hole has axis, extremely along second surface
The distance in the direction of first surface, axis described in the lateral distance of the first segment is gradually increased；Along first surface to the second table
The distance in the direction in face, axis described in the lateral distance of the second segment is bigger.
3. printed wiring board according to claim 2, which is characterized in that the first segment is cone machine hole, and/or described the
Two sections are cone machine hole.
4. printed wiring board according to claim 1, which is characterized in that the of the first segment and the printed wiring board
One smooth surface transition, and/or the second segment and the second surface of the printed wiring board seamlessly transit.
5. printed wiring board according to claim 1, which is characterized in that the guide hole further include be located at the first segment and
The both ends of third section between the second segment, the third section are connected with the first segment and the second segment respectively.
6. printed wiring board according to claim 5, which is characterized in that the both ends of the third section are respectively with described first
Section and second segment smooth transition.
7. printed wiring board according to claim 5, which is characterized in that the third Duan Weicheng circular hole.
8. printed wiring board according to claim 1, which is characterized in that the first segment is connected with the second segment, institute
The angle for stating first segment and the second segment joining place is greater than 90 degree.
9. a kind of pcb component, which is characterized in that including the described in any item printed wiring board of claim 1 to 8.
10. a kind of display panel, including display screen and pcb component as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821982289.1U CN209402828U (en) | 2018-11-28 | 2018-11-28 | Printed wiring board, printed wiring board assembly and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821982289.1U CN209402828U (en) | 2018-11-28 | 2018-11-28 | Printed wiring board, printed wiring board assembly and display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209402828U true CN209402828U (en) | 2019-09-17 |
Family
ID=67881121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821982289.1U Active CN209402828U (en) | 2018-11-28 | 2018-11-28 | Printed wiring board, printed wiring board assembly and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209402828U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954367A (en) * | 2020-07-29 | 2020-11-17 | 深圳市广和通无线股份有限公司 | Printed circuit board, radio frequency module and electronic equipment |
-
2018
- 2018-11-28 CN CN201821982289.1U patent/CN209402828U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954367A (en) * | 2020-07-29 | 2020-11-17 | 深圳市广和通无线股份有限公司 | Printed circuit board, radio frequency module and electronic equipment |
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