CN105873342B - Display device - Google Patents
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- CN105873342B CN105873342B CN201510027065.XA CN201510027065A CN105873342B CN 105873342 B CN105873342 B CN 105873342B CN 201510027065 A CN201510027065 A CN 201510027065A CN 105873342 B CN105873342 B CN 105873342B
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- conducting element
- display device
- conductive
- circuit board
- conductive part
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Abstract
A kind of display device includes a display panel, a circuit board and a conducting element.Circuit board is adjacent to display panel, and electrically connected with display panel, there is circuit board an at least conductive pattern to be configured at a ground area, conductive pattern includes multiple spaced conductive parts, these conductive parts are respectively multiple along the quantity of a first direction and a second direction, and first direction substantial orthogonality second direction.Conducting element is arranged on conductive pattern, and conducting element electrically connects these conductive parts.The present invention can not only reduce conducting element and the impedance ground of ground area, and the resistance to side that can improve conducting element pushes away stress intensity, therefore, the problems such as conducting element loose contact can be avoided or come off, and then improve the electromagnetic interference of display device and the protective capacities of static discharge.
Description
Technical field
The present invention is on a kind of display device, especially in regard to a kind of flat display apparatus.
Background technology
With the development of science and technology flat display apparatus is widely used in various fields, especially liquid crystal display
Device or organic LED display device, because with build is frivolous, low power consumption and the advantageous characteristic such as radiationless,
Gradually substitute conventional cathode ray tube display device, and apply into the electronic product of numerous species, such as mobile phone, can
Take formula multimedia device, notebook computer or TV etc..
Further, since modern electronic product function is stronger and stronger, service speed is more and more faster, and electronic circuit is also more next
It is more intensive with complicated, electronic interferences (Electro Magnetic Interference, EMI) or static discharge (Electro
Static Discharge, ESD) the problem of become one of another significant challenge in circuit design.Therefore, how to strengthen
EMI is disturbed electronic circuit and the protection of static discharge, and one of target of industry effort always.
In in the prior art, flat display apparatus usually sets one in product development process in control board
The conducting element (such as conducting foam) of kind of adhesive type, so that element on circuit board can be by conducting element directly and metal-back
Body is contacted to increase the electromagnetic interference of element and antistatic capacity.But, conducting element is arranged at electricity in a manner of stickup
On the plate of road, not only increase the man-hour additionally pasted, and the loose contact of conducting element easily occurs, or even drop etc. and to ask
Topic, causes the reduction of electromagnetic interference or electro-static discharge protective ability.
The content of the invention
The purpose of the present invention is provides a kind of display device, the problems such as conducting element loose contact can be avoided or come off,
To improve the protective capacities of electromagnetic interference and static discharge.
The technical scheme is that providing a kind of display device includes a display panel, a circuit board and a conductive element
Part.Circuit board is adjacent to display panel, and is electrically connected with display panel, and circuit board is configured at one with an at least conductive pattern and connect
Ground region, conductive pattern include multiple spaced conductive parts, and these conductive parts are along a first direction and a second direction
Quantity is respectively multiple, and first direction substantial orthogonality second direction.Conducting element is arranged on conductive pattern, and conductive element
Part electrically connects these conductive parts.
In one embodiment, these conductive parts are arranged in two-dimensional-matrix-like.
In one embodiment, at least partly these conductive parts are directly connected on conducting element with welding manner.
In one embodiment, there is conducting element an elastic body and a metal level, metal level to be arranged at elastic body's
Outer surface.
In one embodiment, conducting element has a first surface, first surface contact conductive pattern, and these conductive parts
Between length summation in the first direction is 0.5 times to 0.85 times of the length of first surface in the first direction.
In one embodiment, there is a spacing between two these the adjacent conductive parts arranged in the first direction, spacing is more than
0.5 millimeter, and less than 1.2 millimeters.
In one embodiment, at least one of these conductive parts on first direction have a part be exposed to conduction
Outside element.
In one embodiment, these conductive parts in second direction by conducting element in being completely covered.
In one embodiment, display device further includes a metalwork, conducting element have a first surface and with the first table
The relative second surface in face, first surface contact these conductive parts, and second surface directly contacts with metalwork.
In one embodiment, metalwork is a housing or a backboard for display device.
From the above, in the present invention display device in, by positioned at the ground area of circuit board it is spaced this
A little conductive parts in the first direction and second direction quantity it is respectively multiple, and conducting element is arranged on conductive pattern, and electricity
These conductive parts are connected, therefore, compared to prior art, can not only reduce conducting element and the impedance ground of ground area, and
And the resistance to side that can also improve conducting element pushes away stress intensity, therefore, the problems such as conducting element loose contact can be avoided or come off,
And then improve the electromagnetic interference of display device and the protective capacities of static discharge.
Brief description of the drawings
Fig. 1 is a kind of schematic diagram of display device of present pre-ferred embodiments.
Fig. 2A is Fig. 1 circuit board of display device and the connection diagram of conducting element.
Fig. 2 B are the schematic top plan view of the conductive pattern of Fig. 2A circuit board.
Fig. 2 C are the connection diagram of circuit board, conducting element and a metalwork in display device.
Fig. 3 A are the circuit board of another embodiment aspect and the connection diagram of conducting element.
Fig. 3 B are the schematic top plan view of the conductive pattern of Fig. 3 A circuit board.
Embodiment
Hereinafter with reference to correlative type, illustrate the display device according to present pre-ferred embodiments, wherein identical element will
It is illustrated with identical reference marks.
It refer to shown in Fig. 1 to Fig. 2 C, wherein, Fig. 1 is a kind of signal of display device 1 of present pre-ferred embodiments
Figure, Fig. 2A are connection diagram of the circuit board 12 with conducting element 13 of Fig. 1 display device 1, and Fig. 2 B are Fig. 2A circuit board
The schematic top plan view of 12 conductive pattern 121, and Fig. 2 C are circuit board 12, the metalwork of conducting element 13 and one in display device 1
15 connection diagram.
Display device 1 can be liquid crystal display device or organic LED display device, and such as, but not limited to one
Display screen, a tablet personal computer, a smart mobile phone, a global positioning system (global positioning system) or one
Notebook computer, or an electronic installation with Touch Screen, are not limited.
Display device 1 includes a display panel 11, a circuit board 12 and a conducting element 13.Wherein, for clear explanation
The features of the present invention, in display device 1, the long side of display panel 11 or the bearing of trend of the long side of circuit board 12 are defined as one
First direction D1, the short side of display panel 11 or the bearing of trend of the short side of circuit board 12 are defined as a second direction D2, and
Two direction D2 substantial orthogonality first directions D1.
Display panel 11 can be liquid crystal display panel (LCD) or Organic Light Emitting Diode (OLED) display panel, and circuit
Plate 12 is adjacent to display panel 11, and is electrically connected with display panel 11.Wherein, circuit board 12, which has, drives and controls display panel
11 control circuit or element, and can be a printed circuit board (PCB), the work of display panel 11 can be driven and controlled by circuit board 12
Dynamic (such as showing image).The circuit board 12 of the present embodiment is to be electrically connected by two connection circuit boards 14 with display panel 11.Its
In, connection circuit board 14 may be, for example, soft printed circuit board (flexible print circuit, FPC) or chip on film
(chip on film, COF), is not limited.In addition, the present embodiment is by taking a circuit board 12 as an example, in different embodiments
In, display device 1 may include multiple circuit boards 12, and these circuit boards 12 are equally by connecting circuit board 14 and display panel 11
Electrical connection.In addition, in various embodiments, display device 1 may also include a control board (figure is not shown), control circuit
Plate is connected with circuit board 12, and is electrically connected by connecting circuit board 14 with display panel 11, to control the work of display panel 11
Dynamic, the present invention does not limit.
There is circuit board 12 an at least conductive pattern 121 to be configured at a ground area 122.The circuit board 12 of the present embodiment is
Exemplified by being configured at four grounded region 122 with 4 conductive patterns 121.In this, so-called " ground area " refers to and circuit board
The region of the earth terminal electrical connection of control element on 12；Or it can be described as the setting area of the earth terminal of circuit board 12.Therefore, if
Being placed in the object (conductive pattern 121) of ground area can be directly grounded.Conductive pattern 121 can include multiple spaced lead
Electric portion 1211, and D1 and second direction D2 quantity are respectively multiple in the first direction for these conductive parts 1211.Wherein, conductive part
1211 shape may be, for example, polygon, circle or arc, or irregular shape.As shown in Figure 2 A, the conductive part of the present embodiment
1211 quantity is 4, and conductive part 1211 is shaped as exemplified by quadrangle.Due to first direction D1 substantial orthogonality second party
To D2, therefore, D1 is arranged two conductive parts 1211 in the first direction, and D2 is arranged two conductive parts 1211 in a second direction, is entered
And form two-dimensional-matrix-like.But, in various embodiments, the quantity of conductive part 1211 is alternatively such as 6,8 ..., and
Do not limit, but can equally be arranged in two-dimensional-matrix-like.
Conducting element 13 is correspondingly arranged with conductive pattern 121, and is arranged on conductive pattern 121.In this, conducting element 13
Itself is i.e. flexible, therefore flexible restoring force during stress, to provide the strength of buffering；It is to represent separately " to be correspondingly arranged ", is led
The quantity of electrical pattern 121 is identical with the quantity of conducting element 13, and a conducting element 13 is arranged on a conductive pattern 121
And directly contact and electrically connect these conductive parts 1211 so that conducting element 13 is similarly ground connection with these conductive parts 1211.Separately
Outside, at least partly these conductive parts 1211 are directly connected on conducting element 13 with welding manner.The present embodiment is led with four
Electric portion 1211 is all to be connected to welding manner on conducting element 13 (i.e. both are connected with welding manner) so that these conductive parts
1211 contact and electrically connect with conducting element 13, the bonding strength except that can increase conducting element 13 and these conductive parts 1211
Outside, contact impedance between the two while can also be reduced.The conducting element 13 of the present embodiment is alternatively referred to as piece formula
(solderable) conducting element 13.
The cross sectional shape of conducting element 13 can be quadrangle (trapezoidal, square, rectangle), arc or ellipse, not
Limit.In addition, there is the conducting element 13 of the present embodiment an elastic body 131 and a metal level 132, metal level 132 to be arranged at
The outer surface of elastic body 131, to coat the outer peripheral edge of elastic body 131, therefore, metal level 132 can directly contact these
Conductive part 1211 and electrically connect.In addition, elastic body 131 is hollow elastomer, and it can be insulating materials (such as polyphosphazene polymer
Compound, rubber or silica gel) or conductive material (such as high molecular polymer incorporation conductive particle) be made, do not limit.It is in addition, golden
The material of category layer 132 may be, for example, the single-layer metal material or multilayer metal compound of tin/copper/aluminium (aluminium can strengthen proof stress intensity)
Material is made, and does not also limit.
In addition, there is conducting element 13 a first surface S1 and a second surface S2, first surface S1 to contact these conductions
Portion 1211, and second surface S2 and first surface S1 is relative.As shown in Figure 2 B, the first table of the conducting element 13 of the present embodiment
Face S1 D1 in the first direction length L is, for example, 5mm, and first surface S1 D2 in a second direction width W is, for example, 4mm, and
Its height is, for example, 3mm (not indicating).In addition, D1 length summation (L1+L2) is to lead to these conductive parts 1211 in the first direction
Between 0.5 times to 0.85 times of the first surface S1 of electric device 13 D1 length L in the first direction, and D1 is arranged in the first direction
There is a spacing d1, spacing d1 to be more than 0.5 millimeter between two these adjacent conductive parts 1211 of row.The conductive pattern of the present embodiment
In these conductive parts 1211 of case 121, D1 length L1 is 1.5mm in the first direction, and length L2 is also 1.5mm, and length L is
5mm, therefore (L1+L2)/L=0.6.In addition, two these adjacent conductive parts 1211 D1 in the first direction spacing d1 is 2.3mm, and
1.5+2.3+1.5=5.3 ＞ 5, thus at least one of these conductive parts 1211 on first direction D1 some can reveal
Outside conducting element 13.In this, with two conductive parts 1211 in have on first direction D1 part be exposed to conducting element
Outside 13 first surface S1.
In addition, these conductive parts 1211 of the present embodiment D2 in a second direction width W1, W2 are respectively 1.35mm, and two
These adjacent conductive parts 1211 D2 in a second direction spacing d2 is 1.0mm (1.35+1.0+1.35=3.7mm), and conductive element
The D2 in a second direction of part 13 width W is 4mm (4 ＞ 3.7), thus these conductive parts 1211 on second direction D2 by conducting element
13 are completely covered (not exposed), whereby so that with higher bonding strength when conducting element 13 connects these conductive parts 1211,
Therefore the side that can bear higher second direction D2 pushes away stress and not fallen off.
In addition, as shown in Figure 2 C, display device 1 may also include a metalwork 15, metalwork 15 can be the one of display device 1
Housing or a backboard (such as element of backlight module), and metalwork 15 directly contacts with second surface S2.Therefore, conduction is passed through
Element 13 can be such that the ground connection of the element on circuit board 12 is electrically connected with metalwork 15, therefore, when in having electromagnetism to do on circuit board 12
Disturb and or during static discharge, can by conducting element 13 by electromagnetic interference and or static discharge charge transfer to display device 1
Metalwork 15, whereby improve circuit board 12 electromagnetic interference or static discharge protective capacities.
In addition, display device 1, during assembling or carrying, metalwork 15 can be mainly produced to conducting element 13 along
Two direction D2 side pushes away stress, and by these conductive parts 1211, D1 and second direction D2 quantity are respectively more in the first direction
It is individual, and conducting element 13 is connected to these conductive parts 1211 with welding manner, can not only make conductive pattern 121 and conducting element 13
Electrically connect and reduce impedance ground, and the resistance to side that can improve conducting element 13 and circuit board 12 pushes away stress intensity, therefore, with showing
There is technology to compare, the problems such as display device 1 can avoid the loose contact of conducting element 13 or come off, and then improve electromagnetic interference and
The protective capacities of static discharge.
In addition, refer to shown in Fig. 3 A and Fig. 3 B, wherein, Fig. 3 A are the circuit board 12a and conduction of another embodiment aspect
The connection diagram of element 13, and Fig. 3 B are Fig. 3 A circuit board 12a conductive pattern 121a schematic top plan view.
Primary difference is that, these of the circuit board 12a of the present embodiment conductive pattern 121a are led with Fig. 2A and Fig. 2 B
The quantity in electric portion 1211 is 6, and is arranged in two-dimensional-matrix-like (lining up two rows, each row has 3 conductive parts 1211).In addition,
As shown in Figure 3 B, in these conductive parts 1211 of the present embodiment, D1 length L1 is 1.5mm in the first direction, and length L2 is also
For 1.5mm, but another conductive part 1211 between two length 1.5mm conductive part 1211, its length L3 only have
1.0mm, and first surface S1 D1 in the first direction length L is equally 5mm, therefore (L1+L2+L3)/L=0.8.In addition, two-phase
These adjacent conductive parts 1211 D1 in the first direction spacing d1, d3 is identical, is all 0.65mm, thus the two of the present embodiment it is adjacent these
The D1 in the first direction of conductive part 1211 spacing d1 (or d3) is more than 0.5 millimeter, and is less than 1.2 millimeters of (0.5mm ＜ d1 ＜
1.2mm).In addition, two conductive parts 1211 equally have the first surface S1 for being partly exposed to conducting element 13 in first direction D1
Outside.
In addition, these conductive parts 1211 of the present embodiment D2 in a second direction width W1 and W2 are equally 1.35mm, and
Two these adjacent conductive parts 1211 D2 in a second direction spacing d2 is similarly 1.0mm, therefore W1+d2+W2=3.7mm, and conductive
The D2 in a second direction of element 13 width W is similarly 4mm (4 ＞ 3.7), thus these conductive parts 1211 on second direction D2 also by
Conducting element 13 is completely covered.
It is specifically intended that in the present embodiment, in the first direction in D1 two row's conductive parts 1211, four of outside lead
Electric portion 1211 can be equally connected with the mode of welding with conducting element 13, but welding may be selected in two middle conductive parts 1211
Mode or bonding method are connected with conducting element 13.If two middle conductive parts 1211 select to connect with bonding method, phase
In embodiment compared with Fig. 2A, it may have (because contact area is larger) the advantages of relatively low impedance ground value；If middle two are led
When electric portion 1211 selects to connect conducting element 13 with welding manner, in the embodiment compared to Fig. 2A, except that can have relatively low connect
Outside ground impedance value, also there is the advantages of higher bonding strength.
Further it is mentioned that, D2 applies an equal amount of side and pushes away stress and number when on conducting element 13 in a second direction, phase
For prior art, the present embodiment has relatively low contact resistance.In addition, only have one to lead compared to D1 in the first direction
For the prior art in electric portion, if the side for imposing same number pushes away application, the present embodiment is except equally there is relatively low contact to hinder
Value is outer, it is also desirable to which the side of more number, which pushes away stress, can just make conducting element 13 produce loose contact or the result to come off.Therefore,
Compared to prior art, the present embodiment can reduce the contact resistance between conducting element 13 and circuit board 12, can also improve conduction
The side of element 13 pushes away stress intensity, therefore, can improve side push away stress produce when, the joint face of conducting element 13 and circuit board 12 breaks
Split, come off and cause the phenomenon of open circuit and influence electromagnetic interference and the protective capacities of static discharge.
In summary, in the present invention display device in, by positioned at the ground area of circuit board it is spaced this
A little conductive parts in the first direction and second direction quantity it is respectively multiple, and conducting element is arranged on conductive pattern, and electricity
These conductive parts are connected, therefore, compared to prior art, can not only reduce conducting element and the impedance ground of ground area, and
And the resistance to side that can also improve conducting element pushes away stress intensity, therefore, the problems such as conducting element loose contact can be avoided or come off,
And then improve the electromagnetic interference of display device and the protective capacities of static discharge.
Illustrative is the foregoing is only, rather than is restricted person.Any spirit and scope without departing from the present invention, and to it
The equivalent modifications of progress or change, are intended to be limited solely by claim.
Claims (9)
- A kind of 1. display device, it is characterised in that including：One display panel；One circuit board, the display panel is adjacent to, and is electrically connected with the display panel, the circuit board has at least one to lead Electrical pattern is configured at a ground area, and the conductive pattern includes multiple spaced conductive parts, and the conductive part is along one The quantity of one direction and a second direction is respectively multiple, and second direction described in the first direction substantial orthogonality；AndOne conducting element, it is arranged on the conductive pattern, and the conducting element electrically connects the conductive part；The conducting element has an elastic body and a metal level, and the metal level is arranged at the outside table of the elastic body Face.
- 2. display device as claimed in claim 1, it is characterised in that the conductive part is arranged in two-dimensional-matrix-like.
- 3. display device as claimed in claim 1, it is characterised in that at least partly described conductive part is directly connected with welding manner It is connected on the conducting element.
- 4. display device as claimed in claim 1, it is characterised in that the conducting element has a first surface, and described One surface contacts the conductive pattern, and length summation of the conductive part along the first direction is the first surface along institute Between state the length of first direction 0.5 times to 0.85 times.
- 5. display device as claimed in claim 1, it is characterised in that the two adjacent conductions arranged along the first direction There is a spacing between portion, the spacing is more than 0.5 millimeter, and less than 1.2 millimeters.
- 6. display device as claimed in claim 1, it is characterised in that at least one of the conductive part is in described first On direction there is a part to be exposed to outside the conducting element.
- 7. display device as claimed in claim 1, it is characterised in that the conductive part in the second direction by described in being led Electric device is completely covered.
- 8. display device as claimed in claim 1, it is characterised in that also include：One metalwork, the conducting element has a first surface and a second surface relative with the first surface, described First surface contacts the conductive part, and the second surface directly contacts with the metalwork.
- 9. display device as claimed in claim 8, it is characterised in that the metalwork for the display device a housing or One backboard.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027065.XA CN105873342B (en) | 2015-01-20 | 2015-01-20 | Display device |
| CN201810053771.5A CN108112164A (en) | 2015-01-20 | 2015-01-20 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510027065.XA CN105873342B (en) | 2015-01-20 | 2015-01-20 | Display device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053771.5A Division CN108112164A (en) | 2015-01-20 | 2015-01-20 | Display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105873342A CN105873342A (en) | 2016-08-17 |
| CN105873342B true CN105873342B (en) | 2018-02-09 |
Family
ID=56623302
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053771.5A Pending CN108112164A (en) | 2015-01-20 | 2015-01-20 | Display device |
| CN201510027065.XA Active CN105873342B (en) | 2015-01-20 | 2015-01-20 | Display device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810053771.5A Pending CN108112164A (en) | 2015-01-20 | 2015-01-20 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108112164A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521710B (en) * | 2018-05-15 | 2021-03-02 | 景旺电子科技(龙川)有限公司 | Flexible printed circuit board for wireless charger and manufacturing method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108112164A (en) | 2018-06-01 |
| CN105873342A (en) | 2016-08-17 |
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