CN105159495A - Touch panel - Google Patents
Touch panel Download PDFInfo
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- CN105159495A CN105159495A CN201510543711.8A CN201510543711A CN105159495A CN 105159495 A CN105159495 A CN 105159495A CN 201510543711 A CN201510543711 A CN 201510543711A CN 105159495 A CN105159495 A CN 105159495A
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- protective wire
- area
- electrostatic protection
- contact panel
- protection line
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Abstract
The invention discloses a touch panel. The touch panel comprises a substrate and an insulating layer arranged on the surface of the substrate. The substrate comprises an active region and a frame region located at the edge of the active region; a plurality of touch electrodes for touch sensing are arranged in the active region and used for outputting touch signals. The frame region comprises a first region and a second region, wherein the first region is closer to the active region than the second region. A plurality of lines for transmitting the touch signals are arranged on the surface, corresponding to the first region, of the substrate. A first protection line is arranged on the surface, corresponding to the first and second regions, of the insulating layer. The first protection line is provided with a gap corresponding to the first region on one side next to the insulating layer, and a second protection line is arranged in the gap. The first and second protection lines are used for electrostatic protection, and the impedance of the first protection line is smaller than the impedance of the second protection line.
Description
Technical field
The present invention relates to a kind of contact panel identifying user's touch operation.
Background technology
All need in existing touch control display apparatus to adopt contact panel, portable touch control display apparatus is more conventional, such as mobile phone or panel computer etc.Touch control display apparatus making, packaging, test, transport and equipment be when using, and may be subject to the impact on electronic component and signal lead and the destruction of electrostatic at any time.Such as, the touch operation of user cannot normally be identified after the touch control electrode in contact panel and signal lead are subject to the destruction of electrostatic.
For this reason, usually can make the periphery of electrostatic defending line in contact panel signal lead, conduction be carried out to the electrostatic charge entering contact panel and leads off, prevent electrostatic charge from transferring to cabling and touch control electrode.But, when a large amount of electrostatic charge in outside enter contact panel cause electrostatic defending line cannot lead conduction off to electrostatic charge in time time, partial electrostatic electric charge, by direct entering signal cabling and touch control electrode, affects the signal of its transmission and even causes damage to cabling and touch control electrode.If directly increase the width of electrostatic defending line, the cabling sector width of contact panel will certainly be made to increase, also do not meet the narrow frame demand of contact panel.
Summary of the invention
In view of this, be necessary to provide a kind of contact panel with better electrostatic protection ability.
A kind of contact panel, comprising:
Substrate, comprises active region and the rim area being positioned at this edge, active region;
Multiple touch control electrode, is arranged at this active region, operates and export touching signals for sensing touch;
This rim area comprises first area and second area, and this first area is this second area this active region contiguous comparatively;
Many cablings, are arranged in this first area, and are connected with the plurality of touch control electrode respectively, for transmitting touching signals;
One insulation course, to active region and this rim area covering this touch control electrode and this many cablings; And
First operator guards; as electrostatic protection; comprise the first protective wire and the second protective wire; this first protective wire is to should first area and this second area be arranged on this insulation course; the side of this first protective wire this insulation course contiguous is to having a breach in first area; this second protective wire is filled in this breach, and the impedance of this first protective wire is less than the impedance of this second protective wire.
Compared to prior art; correspondence is provided with the first area of these many cablings; to should the second protective wire of many cablings embed in the breach of the bottom of the first protective wire; again because the conductive capability of the second protective wire is less than the conductive capability of the first protective wire; therefore; when exterior static enters in contact panel, static guiding can be led off to the outside away from cabling by the first protective wire, thus prevents electrostatic charge from directly transferring to cabling and touch control electrode.
Accompanying drawing explanation
Fig. 1 is the perspective view of contact panel in an embodiment of the present invention.
The planar structure schematic diagram that Fig. 2 is contact panel shown in Fig. 1.
Fig. 3 for contact panel shown in Fig. 2 wherein an electrode layer along the structure for amplifying schematic diagram in III region.
The surface structural representation that Fig. 4 is electrode layer shown in Fig. 3.
Fig. 5 is the structure for amplifying schematic diagram of Fig. 4 along V region.
Main element symbol description
| Contact panel | 10 |
| First electrode layer | 150 |
| First laminating layer | 160 |
| The second electrode lay | 170 |
| Second laminating layer | 180 |
| Cover sheet | 190 |
| Active region | AA |
| Rim area | DA |
| First area | D1 |
| Second area | D2 |
| Substrate | 171 |
| Outward flange | 171a |
| Insulation course | 172 |
| Touch-control structure | TE |
| Touch control electrode | 173 |
| Cabling | 174 |
| Electrostatic protection line | 175 |
| First operator guards | 120 |
| First protective wire | 121 |
| Breach | 121a |
| Second protective wire | 122 |
| First width | L |
| Second width | y |
| 3rd width | a |
| 4th width | b |
| 5th width | h |
| First spacing | S |
| Second spacing | z |
| 3rd spacing | x |
| 4th spacing | m |
| 5th spacing | r |
| First direction | X1 |
| Second direction | Y1 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, Fig. 1 is the planar structure schematic diagram of contact panel in an embodiment of the present invention.In the present embodiment, this contact panel 10 comprises the first electrode layer 150, first laminating layer 160, the second electrode lay 170, second laminating layer 180 and cover sheet 190.
First electrode layer 150 is arranged with the second electrode lay 170 mutually insulated, and comprises multiple touch control electrode (see figure 2) respectively, and the multiple touch control electrode in these two electrode layers cooperatively interact for sensing touch operation, and export corresponding touching signals.
First laminating layer 160 is for bonding the first electrode layer 150 with the second electrode lay 170, and the second laminating layer 180 is for bonding cover sheet 190 and the second electrode lay 170.The material of the first laminating layer 160 and the second laminating layer 180 can be transparent solid state optics glue (OpticallyClearAdhesive, OCA), change ground, the material of the first laminating layer 160 and the second laminating layer 180 also can be other transparent bonding materials, not as limit.Cover sheet 190 can be the glass or poly terephthalic acid class plastics (PolyethyleneTerephthalate, PET) etc. of transparent material.
It should be noted that, although contact panel 10 comprises the first electrode layer 150 and the second electrode lay 170 two-layer electrode layer in the present embodiment, but in other embodiments of the present invention, contact panel 10 also can only comprise single-layer electrodes layer, and the touch control electrode in this single-layer electrodes layer cooperatively interacts and to operate for sensing touch.
Referring to Fig. 2, is the planar structure schematic diagram of contact panel 10 shown in Fig. 1.
Contact panel 10 comprises active region AA and rim area DA, and wherein, this rim area DA is positioned at the outside of this active region AA.In present embodiment, rim area DA continued circling is around the AA of this active region.In other embodiments of the present invention, rim area DA also can be positioned at a wherein edge of this active region AA.Be appreciated that when this contact panel 10 and display panel (not shown) with the use of time, the image display area of the corresponding display panel of this active region AA, the non-display area of the corresponding display panel of rim area DA.
Corresponding active region AA is provided with multiple touch-control structure TE, and this touch-control structure TE is for sensing the touch operation put on this contact panel 10, and the corresponding touching signals that exports is to identify that this touch control operation is in the coordinate position of this contact panel 10.
In present embodiment, touch-control structure TE comprises the touch control electrode respectively along first direction X1 and second direction Y1 spread configuration, the touch control electrode mutually insulated of this both direction spread configuration, and formation capacitance structure (not shown) senses this touch operation.Wherein, first direction X1 and second direction Y1 are mutually vertical.Wherein, the touch control electrode arranged along first direction X1 can be arranged in the first electrode layer 150, and the touch control electrode arranged along second direction Y1 can be arranged at the second electrode lay 170.Such as, the electrode structure that the first electrode layer 150 comprises is used as drive electrode, and the electrode in the second electrode lay 170 is used as sensing electrode.
Change ground, when contact panel 10 only comprises single-layer electrodes layer, touch-control structure TE is also formed directly in one deck electrode layer, not as limit.
Contact panel 10 also includes the driving module 110 being arranged at rim area DA, module 110 and touch-control structure TE is driven to be electrically connected, for exporting and receiving touching signals, and Treatment Analysis is carried out to this touching signals, thus reach the object identifying touch operation.
Particularly, for the second electrode lay 170, see also Fig. 3-5, wherein, Fig. 3 is the plane structure for amplifying schematic diagram along the second electrode lay 170 in III region shown in Fig. 2; Fig. 4 is the surface structural representation of the second electrode lay 170 in the region of III shown in Fig. 2; Fig. 5 is the structure for amplifying schematic diagram of Fig. 4 along V region.
The second electrode lay 170 comprises substrate 171 and the insulation course 172 of stacked on top of one another setting.Substrate 171 is glass or the PET of transparent material.Insulation course 172 adopts the insulating material of transparent material.
The active region AA of corresponding contact panel 10, the second electrode lay 170 comprises multiple touch control electrode 173, and the plurality of touch control electrode 173 interval one preset distance is arranged at the surface of substrate 171.
The rim area DA of contact panel 10 defines first area D1 and second area D2 further, and second area D2 is around this first area D1, and this first area D1 is contiguous this active region AA of second area D2 comparatively.In the present embodiment, this first area D1 is for laying many cablings 174 arranged in parallel, and this second area D2 is for laying electrostatic protection line 175.
Many the corresponding first area D1 of cabling 174 is arranged at substrate 171 surface.Many cabling 174 interval first interval S, and each cabling 174 all has the first width L.
In present embodiment, cabling 174 is the cabling of double-deck different materials, and the material of this two-layer wiring is divided into tin indium oxide (Indiumtinoxide, ITO) and copper (Cu).Change ground, the silver-colored pulp material that cabling 174 also can be individual layer is formed.These many cablings 174 respectively with the plurality of touch control electrode 173 and drive module 110 to be electrically connected, in the plurality of touch control electrode 173 and drive between module 110 and transmit touching signals.
The corresponding second area D2 of electrostatic protection line 175 and this many cablings 174 are arranged at the surface of substrate 171 with layer; and be electrically connected with the earth terminal of contact panel 10 external circuit or the earth terminal of driving circuit 110; conducting to earth terminal for being led off by the electrostatic charge entering the second electrode lay 170, preventing electrostatic charge from transferring to cabling 174 and touch control electrode 173.In the present embodiment, this electrostatic protection line 175 is arranged on the periphery of these many cablings 174, and with this many cablings 174 parallel arranged, and the second width y of this electrostatic protection line 175 is greater than the first width L of this cabling 174, is beneficial to the conduction of electric charge.
Further, definition electrostatic protection line 175 is the second spacing z apart from the minor increment of these many cablings 174, and definition electrostatic protection line 175 is the 3rd spacing x apart from the minor increment of the outward flange 171a of substrate 171.In the present embodiment; second spacing z is less than the second width y; be not less than the first width L of these many cablings 174 and the half of the first interval S sum simultaneously; i.e. z >=(L+S)/2; preferably to ensure that electrostatic charge all conducts from electrostatic protection line 175, prevent electrostatic charge from transferring to cabling 174 and touch control electrode 173.
Insulation course 172 directly covers the plurality of touch control electrode 173, many cablings 174, electrostatic protection line 175 and substrates 171, and the thickness of insulation course 172 is less than 100 μm.
First operator guards 120 is arranged at the surface of insulation course corresponding to rim area DA 172, and part first operator guards 120 is to should arrange and comprise a staircase structure, the corresponding second area D2 of part first operator guards 120 by first area D1.First operator guards 120 is also used as electrostatic protection.
First operator guards 120 comprises the first protective wire 121 and the second protective wire 122.
First protective wire 121 is to being arranged at the surface of this insulation course 172 by first area D1 and second area D2, and the first protective wire 121 is electrically connected, as leading transmission electrostatic charge off with earth terminal.First protective wire 121 has a breach 121a at the corresponding first area D1 in the side of this insulation course 172 contiguous, thus makes the thickness of the first protective wire 121 corresponding first area D1 be less than the thickness of the corresponding second area D2 of the first protective wire 121.
Preferably, the thickness of the corresponding second area D2 of the first protective wire 121 is not more than 20 μm, and the height of this breach 121a is not more than 5 μm, and that is the thickness of the corresponding first area D1 of the first protective wire 121 is not more than 15 μm.Because the integral thickness of the first protective wire 121 is not more than 20 μm, while therefore the setting of the first protective wire 121 more effectively can lead transmission electrostatic charge off, the integral thickness of the second electrode lay 170 can't be made to affect greatly.In addition; when the thickness of breach 121a remains on below 5 μm; it can not affect greatly the electric conductivity of the first protective wire 121; effectively can also change the charge transfer path of the first protective wire 121 simultaneously, namely make the first protective wire 121 away from insulation course 172 side received by electric charge guide to the side of the contact insulation layer 172 with breach 121a.
First protective wire 121 has the 3rd width a, and the outward flange 171a of the first protective wire 121 outer and substrate 171 has the 4th spacing m.Preferably; 3rd width a is greater than the second width y of electrostatic protection line 175; and the 4th spacing m be less than the 3rd spacing x, thus make the first protective wire 121 compared with electrostatic protection line 175 more close to the outward flange 171a of substrate, make outside electrostatic charge first can enter the first protective wire 121.In addition; first protective wire 121 covers electrostatic protection line 175 on substrate 171 thickness direction; thus make the conductive capability of the first protective wire 121 be greater than the conductive capability of electrostatic protection line 175; most of electrostatic charge is transmitted in the first protective wire 121, to prevent electrostatic protection line 175 damaged.
In present embodiment, the first protective wire 121 entirety is trapezium structure, and change ground, the first protective wire 121 can entirety be also rectangle or square structure.First protective wire 121 is conductor and has the first impedance R1, and its material can select silver-colored pulp material.
The corresponding first area D1 of second protective wire 122 is arranged at insulation course 172 surface, and has the 4th width b, and wherein, the 4th width b is less than the 3rd width a.Part second protective wire 122 is filled in breach 121a; and the part not being filled in breach 121a extends the 5th width h with cover part cabling 174 from this first protective wire 121 to the direction of contiguous the plurality of touch control electrode 173, thus corresponding first area, insulation course 172 side D1 electrostatic charge directly can not conduct to cabling 174 through insulation course 172.Change ground, the second protective wire 122 also can all be filled in breach 121a.
The side of the contiguous outward flange 171a of the second protective wire 122 and electrostatic protection line 175 have the 5th spacing r away from the side of outward flange 171a on vertical substrate 171 thickness direction; 5th spacing r is not more than the half of the second spacing z; make the second protective wire 122 comparatively cabling 174 more close to electrostatic protection line 175; to prevent electrostatic charge from transferring to cabling 174 with more having, reach effect of protection cabling 174.
In present embodiment, the thickness of the second protective wire 122 is identical with the height of breach 121a, is all not more than 5 μm.In addition, the material of the second protective wire 122 can be conductive material, such as ITO or development.Wherein, when the material of the second protective wire 122 is conductive material, the second protective wire 122 has the second impedance R2.
Second impedance R2 of the second protective wire 122 is greater than the first impedance R1 of the first protective wire 121; that is; the conductive capability of the first protective wire 121 is greater than the conductive capability of the second protective wire 122; thus; second protective wire 122 engages indentation 121a; the electrostatic charge entering the first protective wire 121 can not be transmitted from breach 121a direction, but concentration of transmissions is to the first protective wire 121 corresponding to second area D2, to form protection to cabling 174.
In the present embodiment, when the second impedance R2 of the second protective wire 122 is more than 100 times of the first impedance R1 of the first protective wire 121, can preferably prevent the electrostatic charge entering the first protective wire 121 from transferring to cabling corresponding to first area D1 174.
Change ground, the second protective wire 122 also can be insulating material, and it can be the material identical with insulation course 172, and accordingly, the second protective wire 122 can complete in same processing procedure with insulation course 172.Be appreciated that its impedance is much larger than the impedance of the first protective wire 121 of conduction when the second protective wire 122 is for insulating material.
Compared to prior art; correspondence is provided with the first area D1 of these many cablings 174; to should the second protective wire 122 of many cablings 174 embed in the breach 121a of the bottom of the first protective wire 121; again because the conductive capability of the second protective wire 122 is less than the conductive capability of the first protective wire 121; therefore; when exterior static enters in contact panel 10; static guiding can carry out leading transmission off to the direction away from cabling 174 by the first protective wire 121, thus prevents electrostatic charge from directly transferring to cabling 174 and touch control electrode 173.
Further; owing to being also provided with electrostatic protection line 175 further outside cabling 174; therefore; when outside a large amount of electrostatic charge enters in contact panel 10; electrostatic charge can also directly be led off to electrostatic protection line 175 place by the first protective wire 121, thus more effectively prevents electrostatic charge from transferring to cabling 174.
In addition, the first operator guards 120 part covers cabling 174, and therefore, and the partial width not covering cabling 174 is less, thus ensures that rim area DA width is less, adapts to the narrow frame demand of contact panel 10.
It should be noted that, the structure of the first electrode layer 150 is substantially identical with the structure shown in Fig. 4, and this instructions repeats no more.Be appreciated that the touch control electrode (not shown) included by the first electrode layer 150 and the touch control electrode 173 included by the second electrode lay 170 form touch-control structure TE jointly.
Above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not depart from the spirit and scope of technical solution of the present invention.
Claims (12)
1. a contact panel, is characterized in that, comprising:
Substrate, comprises active region and the rim area being positioned at this edge, active region;
Multiple touch control electrode, is arranged at this active region, operates and export touching signals for sensing touch;
This rim area comprises first area and second area, and this first area is this second area this active region contiguous comparatively;
Many cablings, are arranged in this first area, and are connected with the plurality of touch control electrode respectively, for transmitting touching signals;
One insulation course, to active region and this rim area covering this touch control electrode and this many cablings; And
First operator guards; as electrostatic protection; comprise the first protective wire and the second protective wire; this first protective wire is to should first area and this second area be arranged on this insulation course; the side of this first protective wire this insulation course contiguous is to having a breach in first area; this second protective wire is filled in this breach, and the impedance of this first protective wire is less than the impedance of this second protective wire.
2. contact panel as claimed in claim 1, is characterized in that, this first protective wire is to the thickness of second area being not more than 20 μm, and the height of this breach is not more than 5 μm.
3. contact panel as described in claim 1 or 2, it is characterized in that, the impedance of this first protective wire is less than or equal to 100 times of the electrical impedance of this second protective wire.
4. contact panel as claimed in claim 3, it is characterized in that, this second protective wire is insulating material.
5. contact panel as claimed in claim 3, it is characterized in that, this second protective wire is conductor.
6. contact panel as claimed in claim 1, it is characterized in that, this second protective wire is partially filled in this breach, and the direction not being filled in part edge this touch control electrode contiguous in this breach extends and covers this many cablings.
7. contact panel as claimed in claim 6, it is characterized in that, the width of this first protective wire is greater than the width of this second protective wire.
8. contact panel as claimed in claim 1, it is characterized in that, this first protective wire is less than the wire of this substrate edges the most contiguous and the distance of this substrate edges in these many cablings apart from the distance of this basal edge.
9. contact panel as claimed in claim 1; it is characterized in that; this contact panel also comprises the electrostatic protection line of a conduction, and this electrostatic protection line and this many cablings insulate with layer and are arranged at substrate surface corresponding to this second area, and this insulation course covers this electrostatic protection line.
10. contact panel as claimed in claim 9; it is characterized in that; the width of this electrostatic protection line is less than the width of this first protective wire; on this substrate thickness direction, this first protective wire covers this electrostatic protection line, and the distance of this this basal edge of electrostatic protection linear distance is greater than the distance of this first protective wire apart from this basal edge.
11. contact panels as claimed in claim 9; it is characterized in that; the width of this electrostatic protection line is greater than the width of any this cabling; and perpendicular on the direction of substrate thickness, the minor increment of this electrostatic protection line and these many cablings is greater than the distance of this electrostatic protection line and this second protective wire.
12. contact panels as claimed in claim 9; it is characterized in that; the width of this electrostatic protection line is greater than the minor increment of this electrostatic protection line and these many cablings, and the minor increment of this electrostatic protection line and these many cablings is not less than the half of any cabling Wide degree sum in distance between these many cablings and this many cablings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543711.8A CN105159495B (en) | 2015-08-31 | 2015-08-31 | Contact panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510543711.8A CN105159495B (en) | 2015-08-31 | 2015-08-31 | Contact panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105159495A true CN105159495A (en) | 2015-12-16 |
| CN105159495B CN105159495B (en) | 2018-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510543711.8A Expired - Fee Related CN105159495B (en) | 2015-08-31 | 2015-08-31 | Contact panel |
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| Country | Link |
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| CN (1) | CN105159495B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613606A (en) * | 2019-02-22 | 2020-09-01 | 群创光电股份有限公司 | Display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100079694A1 (en) * | 2008-09-30 | 2010-04-01 | Epson Imaging Devices Corporation | Liquid crystal device, electronic apparatus, and method of manufacturing liquid crystal device |
| CN104298380A (en) * | 2013-07-16 | 2015-01-21 | 宏达国际电子股份有限公司 | Touch control panel |
| CN204360344U (en) * | 2015-02-27 | 2015-05-27 | 宸鸿科技(厦门)有限公司 | Electrostatic defending contact panel |
| CN104866126A (en) * | 2014-02-25 | 2015-08-26 | 宸鸿科技(厦门)有限公司 | Touch panel |
-
2015
- 2015-08-31 CN CN201510543711.8A patent/CN105159495B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100079694A1 (en) * | 2008-09-30 | 2010-04-01 | Epson Imaging Devices Corporation | Liquid crystal device, electronic apparatus, and method of manufacturing liquid crystal device |
| CN104298380A (en) * | 2013-07-16 | 2015-01-21 | 宏达国际电子股份有限公司 | Touch control panel |
| CN104866126A (en) * | 2014-02-25 | 2015-08-26 | 宸鸿科技(厦门)有限公司 | Touch panel |
| CN204360344U (en) * | 2015-02-27 | 2015-05-27 | 宸鸿科技(厦门)有限公司 | Electrostatic defending contact panel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111613606A (en) * | 2019-02-22 | 2020-09-01 | 群创光电股份有限公司 | Display device |
| CN111613606B (en) * | 2019-02-22 | 2022-05-10 | 群创光电股份有限公司 | Display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105159495B (en) | 2018-03-20 |
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Effective date of registration: 20181015 Address after: No. 689, cooperative road, hi-tech West District, Chengdu, Sichuan Co-patentee after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Patentee after: Interface Technology (Chengdu) Co., Ltd. Address before: 518109 1.5, 3 of Foxconn science and technology group H District, two Longhua Road, Longhua New District, Shenzhen, Guangdong. Co-patentee before: General Interface Solution Ltd. Patentee before: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. |
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Granted publication date: 20180320 Termination date: 20210831 |
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