CN207780747U - Touch panel and display device - Google Patents
Touch panel and display device Download PDFInfo
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- CN207780747U CN207780747U CN201820083117.4U CN201820083117U CN207780747U CN 207780747 U CN207780747 U CN 207780747U CN 201820083117 U CN201820083117 U CN 201820083117U CN 207780747 U CN207780747 U CN 207780747U
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- protective layer
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- conductor layer
- touch panel
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- 239000010410 layer Substances 0.000 claims abstract description 95
- 239000011241 protective layer Substances 0.000 claims abstract description 83
- 239000004020 conductor Substances 0.000 claims abstract description 80
- 239000002184 metal Substances 0.000 claims abstract description 24
- 239000000758 substrate Substances 0.000 claims abstract description 17
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 5
- 239000011521 glass Substances 0.000 description 10
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- WDLTVNWWEZJMPF-UHFFFAOYSA-N 1,2,3,5-tetrachloro-4-(2,3-dichlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=C(Cl)C(Cl)=CC=2Cl)Cl)=C1Cl WDLTVNWWEZJMPF-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- MEYZYGMYMLNUHJ-UHFFFAOYSA-N tunicamycin Natural products CC(C)CCCCCCCCCC=CC(=O)NC1C(O)C(O)C(CC(O)C2OC(C(O)C2O)N3C=CC(=O)NC3=O)OC1OC4OC(CO)C(O)C(O)C4NC(=O)C MEYZYGMYMLNUHJ-UHFFFAOYSA-N 0.000 description 1
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Abstract
This application discloses a kind of touch panel and display device, which includes touch-control sensing area and the lead district positioned at the touch-control sensing area left and right sides and downside；Area is bound, the downside in the touch-control sensing area is located at；Electrode is equipped in the touch-control sensing area, the lead for connecting the electrode extends in the lead district and bound with flexible PCB in the binding area, and the binding area includes：Substrate；First conductor layer, setting is on the substrate；First protective layer is arranged in first conductor layer, and at least part of first protective layer covers the lead in first conductor layer and extends, and forms strip pattern；Second conductor layer is arranged on first protective layer；Second protective layer is arranged in second conductor layer.First protective layer of the touch panel of the application is only covered along the lines of the first conductor layer, rather than whole face covers, and effectively prevents the metal line bridging phenomenon because caused by tilting protective layer.
Description
Technical field
The utility model is related to field of liquid crystal display, and in particular to a kind of to prevent from causing line short because of protective layer tilting
Touch panel and display device.
Background technology
Touch panel (Touch Panel) be it is most simple at present, conveniently, a kind of natural man-machine interaction mode.Touch surface
Plate generally comprises touch function area, the lead district positioned at touch function area periphery, line bonding area and flexible PCB, touch-control
It is connected and is connected by lead between functional areas and flexible PCB.When finger touch display screen, flexible PCB is to touch-control electricity
Touching signals on extremely are handled, and realize touch function.
The part planar structural representation in the line bonding area of touch panel in the prior art is shown respectively in Fig. 1 a and Fig. 1 b
Figure and sectional view.As illustrated in figs. 1A and ib, the first conductor layer 102 and the second conductor being laid on transparent glass substrate 101
Layer 104 is equipped with the first protective layer 103 of whole face covering, the first conductor layer between first conductor layer 102 and the second conductor layer 104
102 and second conductor layer 104 be multiple metal lead wires and corresponding arrangement up and down, the second conductor layer 104 are equipped with whole face covering
Second protective layer 105.
First conductor layer 102 extends to one end far from touch function area, and the second conductor layer 104 is to far from touch function area
One end extend, the two be bonded to be formed binding pad with flexible PCB bind.In binding region, first layer protective layer 103 is usual
It is that the first conductor layer 102 of whole face covering frequently results in the first protective layer since protective layer is different from the adhesive force of metal or glass
103 edge (the first conductor layer 102 is not just by 103 covering of the first protective layer in Fig. 1 a) occurs to tilt (to be stuck up in edge
Rise place be not fixed), in the second 104 plated film of conductor layer later, metal can enter the first protective layer 103 tilting at and
Subsequent process can not be fully etched, and to make the second adjacent conductor layer 104 be connected, cause to be connected with the second conductor layer 104
Touch function area electric pole short circuit, scrap to panel.And due to 103 edge of the first protective layer tilt and caused by electrode it is short
Road rate is about 10%, electric pole short circuit phenomenon occurs in this region, because repairing energy is not easy to hold, is easy the line of liquid crystal display panel
Road repair it is disconnected, so once occur short circuit, panel be difficult repair.
Utility model content
In view of this, the purpose of this utility model is to provide the protective layer design that a kind of non-whole face covers metal lead wire,
The metal lead wire short circuit phenomenon because caused by tilting protective layer can be substantially reduced.
A kind of touch panel is provided according to the utility model, including touch-control sensing area and left positioned at the touch-control sensing area
The lead district of right both sides and downside；Area is bound, the downside of the induction zone is located at；Electrode is equipped in the touch-control sensing area, even
The lead for connecing the electrode extends in the lead district and is bound with flexible PCB in the binding area, the binding area
Including：Substrate；First conductor layer, setting is on the substrate；First protective layer is arranged in first conductor layer, described
At least part of first protective layer covers the lead in first conductor layer and extends, and forms strip pattern；Second
Conductor layer is arranged on first protective layer；Second protective layer is arranged in second conductor layer.
Preferably, described in an edge part of first protective layer in binding area covers in first conductor layer
Lead and extend, form the strip pattern.
Preferably, being smaller than between the adjacent strip pattern that first protective layer is formed is corresponding below
Spacing between the adjacent lead.
Preferably, which is characterized in that it is right below that the width for the strip pattern that first protective layer is formed is more than
The width for the lead answered.
Preferably, first conductor layer and second conductor layer are a plurality of lead and corresponding arrangement up and down.
Preferably, the lead is metal lead wire.
Preferably, the strip pattern that first protective layer is formed has rectangular ends.
Preferably, the strip pattern that first protective layer is formed has arcuate end.
Preferably, the strip pattern that first protective layer is formed with linear edge or with jagged edge or
With wavy edge.
The utility model also provides a kind of display device, including display panel, and the display device further includes described above
Touch panel, touch panel setting side on said display panel.
Touch panel provided by the utility model and display device, because marginal portion of first protective layer in binding area is covered
Lead in the first conductor layer of lid and extend, form strip pattern, i.e., between the first protective layer between adjacent first conductors layer
There are gap, Protective coatings are reduced with metal and glass contact due to tilting risk caused by stress difference, even if sticking up
Rising makes the second conductor layer metal adhesion at tilting, because gap presence will not make the second adjacent conductor layer metal conduction,
Reduce metal line bridging risk.
Description of the drawings
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from.
The part planar structural representation in the line bonding area of touch panel in the prior art is shown respectively in Fig. 1 a and Fig. 1 b
Figure and sectional view；
Fig. 2 shows the structure charts according to the touch panel of the utility model embodiment；
Fig. 3 a show the part planar structure chart in the binding area according to the utility model first embodiment；
Fig. 3 b show the partial cutaway view in the binding area according to the utility model first embodiment；
Fig. 4 shows the part planar structure chart in the binding area according to the utility model second embodiment.
Specific implementation mode
Hereinafter reference will be made to the drawings is more fully described the various embodiments of the utility model.In various figures, identical
Element is indicated using same or similar reference numeral.For the sake of clarity, the various pieces in attached drawing are not drawn to paint
System.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or any other variant be intended to it is non-
It is exclusive to include, so that article or equipment including a series of elements include not only those elements, but also include
Other elements that are not explicitly listed.In the absence of more restrictions, the element limited by sentence "including a ...",
Be not precluded including the element article or equipment in there is also other identical elements.
Fig. 2 shows the structure charts according to the touch panel of the utility model embodiment.
The touch panel of the present embodiment includes the touch-control sensing area 12 for being located at 11 middle part of panel, is located at 12 left side of touch-control sensing area
The lead district 13 of right both sides and downside；Positioned at the downside of touch-control sensing area 12 flexible PCB (not shown) and lead with
The line bonding area 15 of flexible PCB binding；Touch-control sensing area 12 is provided with electrode, and the lead of connection electrode is in lead district 13
Interior extension is simultaneously bound to binding pad 16 in binding area 15 with flexible PCB.
Specifically, the electrode that touch-control sensing area 12 is arranged includes first electrode and second electrode, one of them is transmitting electricity
Pole, another is receiving electrode.For example, first electrode is emission electrode (Tx), second electrode is receiving electrode (Rx), but not with this
It is limited.Lamination order between first electrode and second electrode is unlimited.For example, first electrode is located at below second electrode, but not
As limit.
Lead district 13, which is provided with a plurality of first lead 131 for being spaced insulation and is spaced a plurality of the second of insulation, draws
Line 132.For example, a plurality of first lead 131 is connected with first electrode, a plurality of second lead 132 is connected with second electrode, a plurality of
One lead 131 and a plurality of second lead 132 can be metal lead wire.Shielding wire 14 can be set, for the first lead 131 to be isolated
With the second lead 132, and electrode and multiple leads be isolated with external devices as a whole.
Specifically, a plurality of first lead 131 and first electrode are located at same layer, a plurality of second lead 132 and second electrode
Positioned at same layer.But a plurality of first lead 131, first electrode are located at different layers with a plurality of second lead 132, second electrode.
Wherein, the first lead 131 is arranged in the left and right sides in touch-control sensing area 12, and the second lead 132 is arranged in touch-control sense
The downside in area 12, binding area 15 is answered to be located at the downside in touch-control sensing area 12, the first lead 131 prolongs from the left and right sides of induction zone 12
Binding area 15 is extended to, the second lead 132 also extends to binding area 15.Pass through the first lead between first electrode and flexible PCB
131 connection conductings, are connected by the second lead 132 between second electrode and flexible PCB and are connected.In binding area 15, a plurality of the
One lead 131 and a plurality of second lead 132 are connected to binding pad 16 with flexible PCB respectively, wherein isolation strip also is provided with tying up
Determine pad 16.
Fig. 3 a show the part planar structure chart in the binding area according to the utility model first embodiment.
Fig. 3 b show the partial cutaway view in the binding area according to the utility model first embodiment
The utility model proposes a kind of coverage mode of the first new protective layer, i.e. side of the first protective layer in binding area
Edge point covers the lead in the first conductor layer and extends, and forms strip pattern, avoids short circuit.In conjunction with Fig. 3 a and Fig. 3 b, here
The structure in the line bonding area that lead is bound with flexible PCB is only had chosen to illustrate the present embodiment, is i.e. binds area in Fig. 2
15.The binding area of the present embodiment includes substrate 201, can be glass substrate；First conductor layer 202 is arranged on substrate 201；
First protective layer 203 is arranged in the first conductor layer 202, and at least part of the first protective layer 203 covers the first conductor layer
Lead in 202 and extend, form strip pattern, i.e. an edge part of the first protective layer in binding area covers the first conductor
Layer in lead and extend, form the strip pattern；Second conductor layer 204 is arranged on the first protective layer 203；Second protects
Sheath 205 is arranged in the second conductor layer 204.Wherein, the first conductor layer 202 is a plurality of first lead, the second conductor layer 204
For a plurality of second lead, the first protective layer 203 and the second protective layer 205 are OC (Over coating) layer, transparent protection
Material.
In binding area, the interval between the first adjacent conductor layer 202 can be 100um, so can be by the first protective layer
The suitable place's (should not be with adjacent first gage lap) in space of 203 edge designs between the first conductor layer 202, that is, the
One protective layer 203 is no longer that whole face is covered in the first conductor layer 202, but is only covered along every first lead, the first lead
Capped part is fully located in the first protective layer 203, and the first protective layer 203 covers the first conductor layer in binding area's inside points
Lead in 202 and extend, form strip pattern, strip pattern is alternately distributed with gap.
The strip pattern that first protective layer 203 is formed is smaller than the spacing for corresponding to lead below, the first protective layer
The width of 203 strip patterns formed is more than the width for corresponding to lead below.The length of strip pattern is less than binding area along item
Distance with direction.In the present embodiment, the strip pattern that the first protective layer 203 is formed has rectangular ends, and the first protective layer
203 strip patterns formed have linear edge, i.e. first protective layer 203 of the line bonding area close to flexible PCB side
Edge is square waveform.
Conductor layer in the present embodiment touch panel and protective layer, each layer are all realized by exposing etching.It ties up
The process sequence of the conductor layer and protective layer of determining area is：The first conductor layer 202 is made first, is first coated on glass substrate 201
One layer of first layer metal, through overexposure, etching forms the first conductor layer 202, then covers first in the first conductor layer 202
Protective layer 203 makes the second conductor layer 204 after overexposure above the first protective layer 203, that is, is coated with second layer metal again,
Through overexposure, etching forms the second conductor layer 204, the second protective layer 205 is finally coated in the second conductor layer 204 and is exposed.
In binding area, the whole face compared to the first traditional protective layer covers, and the present invention is by 203 change in design of the first protective layer
Only to cover the lead item of the first conductor layer 202, there are gap between the first adjacent conductor layer 202, and the second conductor layer
204 with the first conductor layer 202 be Chong Die in binding region, and every second conductor layer 204 is located at the item on the first protective layer 203
It takes, separated from each other by the first protective layer 203 each other, the second protective layer 205 still wants whole face to cover the second conductor layer
204, the second protective layer 205 extends in the gap between the band of the first protective layer 203.Even if the first protective layer 203 tilts,
Since the lead of conductor layer is separated with certain distance each other, the conducting between adjacent second conductors layer 204 will not be caused, it can be with
Avoid electric pole short circuit.And since the first protective layer 203 covers the first conductor layer 202, not exposed metal wire, second protects
Sheath 205 also by the second covering comprehensively of conductor layer 204, can still reach protecting effect.
Because the first protective layer 203 not instead of whole face covers the first conductor layer 202, covering first is led for the design of the present embodiment
Lead in body layer 202 and extend to form strip pattern, reduce the contact area of the first protective layer 203 and metal and glass,
Tilt risk caused by stress difference caused by reducing by 203 material of the first protective layer and metal and glass contact, and even if the
One protective layer, 203 edge tilts, and because of the presence of band, is not connected between the second conductor layer 204, when the second conductor layer 204 makes,
Metal film forming will not cause line short residual.
Fig. 4 shows the part planar structure chart in the binding area according to the utility model second embodiment.
The utility model second embodiment provides a kind of touch panel, roughly the same with embodiment one.The of the present embodiment
Marginal portion of one protective layer 203 in binding area covers the lead in the first conductor layer 202 and extends, and forms strip pattern.
The present embodiment is from embodiment one the difference is that the shape of first protective layer 203 of the present embodiment is different with embodiment one, originally
The strip pattern that first protective layer 203 of embodiment is formed has arcuate end, and the strip pattern that the first protective layer 203 is formed
With linear edge.
The present embodiment is identical as embodiment one, and stress caused by can reducing Protective coatings and metal and glass contact is not
Tilt risk with caused by, and arc end it is more difficult tilt, even if edge tilting occurs, because strip pattern it
Between there are gap, do not turned between the second conductor layer 204, can be to avoid line short.
, in other embodiments, the strip pattern that the first protective layer 203 is formed is with jagged edge or with wave
Shape edge.The present embodiment illustrates for choosing straight edges, convenient for making, but can also use other edge shapes or end
Shape is held, can be selected according to actual needs.
The present invention also provides a kind of display device, including above-mentioned touch panel and display panel, touch panel settings
Side on a display panel.Specifically, universal display panel includes array substrate, color membrane substrates and is folded in array substrate and color film
Liquid crystal layer between substrate, color membrane substrates are for example equipped with filter coating and flatness layer, and array substrate is for example equipped with tft array, public
Electrode, pixel electrode and the insulating layer being arranged between public electrode and pixel electrode, but the structure of display panel is without being limited thereto,
It can be arranged as required to the structure of liquid crystal display panel.
Touch panel provided by the utility model and display device, in lead binding area Nian Jie with flexible PCB, first
Protection layer segment covers the lead in the first conductor layer and extends, and forms strip pattern, the first protective layer edge designs can exist
Two adjacent first conductor layers are fanned out to space (should not be with adjacent first gage lap).Because the first protective layer is not whole face covering the
One conductor layer, but there are gaps, reduce the contact area of the first protective layer and metal and glass, reduce the first protection tunic
Risk is tilted caused by material and stress difference caused by metal and glass contact, and even if the first protective layer edge tilts,
It because strip pattern does not connect each other, is not connected between the second conductor layer, even if second layer metal film forming residual can't be made
At line short.The risk that protective film tilting can be reduced can reduce because of panel report caused by metal residual leads to electric pole short circuit
Useless rate.
Finally it should be noted that：As described above according to the embodiments of the present invention, there is no detailed for these embodiments
All details are described, also do not limit the specific embodiment that the utility model is only described.Obviously, as described above, can make
Many modifications and variations.All any modification, equivalent replacement, improvement within the spirit and principle of the utility model
Deng should be included within the scope of protection of this utility model.The present embodiment is chosen and specifically described to this specification, is in order to more
The principles of the present invention and practical application are explained well, to enable skilled artisan to utilize this reality well
It is used with novel and on the basis of the utility model modification.The utility model only by claims and its full scope and
The limitation of equivalent.
Claims (10)
1. a kind of touch panel, including touch-control sensing area and the lead positioned at the touch-control sensing area left and right sides and downside
Area；Area is bound, the downside in the touch-control sensing area is located at；It is equipped with electrode in the touch-control sensing area, connects drawing for the electrode
Line extends in the lead district and is bound with flexible PCB in the binding area, which is characterized in that the binding area packet
It includes：
Substrate；
First conductor layer, setting is on the substrate；
First protective layer is arranged in first conductor layer, at least part covering described first of first protective layer
The lead in conductor layer and extend, form strip pattern；
Second conductor layer is arranged on first protective layer；
Second protective layer is arranged in second conductor layer.
2. touch panel according to claim 1, which is characterized in that edge one of first protective layer in binding area
Part covers the lead in first conductor layer and extends, and forms the strip pattern.
3. touch panel according to claim 1, which is characterized in that the adjacent band that first protective layer is formed
The spacing being smaller than between the corresponding adjacent lead below between pattern.
4. touch panel according to claim 1, which is characterized in that the strip pattern that first protective layer is formed
Width be more than the width of the corresponding lead below.
5. touch panel according to claim 1, which is characterized in that first conductor layer and second conductor layer are
The a plurality of lead and up and down corresponding arrangement.
6. touch panel according to claim 5, which is characterized in that the lead is metal lead wire.
7. touch panel according to claim 1, which is characterized in that the strip pattern that first protective layer is formed
With rectangular ends.
8. touch panel according to claim 1, which is characterized in that the strip pattern that first protective layer is formed
With arcuate end.
9. touch panel according to claim 1, which is characterized in that the strip pattern that first protective layer is formed
With linear edge or with jagged edge or with wavy edge.
10. a kind of display device, which is characterized in that including touch panel as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083117.4U CN207780747U (en) | 2018-01-18 | 2018-01-18 | Touch panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083117.4U CN207780747U (en) | 2018-01-18 | 2018-01-18 | Touch panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207780747U true CN207780747U (en) | 2018-08-28 |
Family
ID=63213337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820083117.4U Active CN207780747U (en) | 2018-01-18 | 2018-01-18 | Touch panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207780747U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110244876A (en) * | 2019-06-19 | 2019-09-17 | 业成科技（成都）有限公司 | Circuit board, touch module, touch screen and electronic equipment |
| CN110399054A (en) * | 2019-06-27 | 2019-11-01 | 云谷（固安）科技有限公司 | A kind of touch panel and display device |
| WO2020173178A1 (en) * | 2019-02-28 | 2020-09-03 | 京东方科技集团股份有限公司 | Array substrate and manufacturing method therefor, display device, and mask plate |
-
2018
- 2018-01-18 CN CN201820083117.4U patent/CN207780747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020173178A1 (en) * | 2019-02-28 | 2020-09-03 | 京东方科技集团股份有限公司 | Array substrate and manufacturing method therefor, display device, and mask plate |
| CN110244876A (en) * | 2019-06-19 | 2019-09-17 | 业成科技（成都）有限公司 | Circuit board, touch module, touch screen and electronic equipment |
| CN110399054A (en) * | 2019-06-27 | 2019-11-01 | 云谷（固安）科技有限公司 | A kind of touch panel and display device |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |