CN103105980B - Electrode structure of capacitive touch control panel - Google Patents
Electrode structure of capacitive touch control panel Download PDFInfo
- Publication number
- CN103105980B CN103105980B CN201210392453.4A CN201210392453A CN103105980B CN 103105980 B CN103105980 B CN 103105980B CN 201210392453 A CN201210392453 A CN 201210392453A CN 103105980 B CN103105980 B CN 103105980B
- Authority
- CN
- China
- Prior art keywords
- electrode unit
- star
- touch control
- electrode
- capacitive touch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 230000001154 acute effect Effects 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 16
- 239000004020 conductor Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Abstract
The invention provides an electrode structure of a capacitive touch panel, which comprises a plurality of driving wires, a plurality of detection wires, a plurality of star-shaped electrodes and a plurality of detection electrodes. The driving lines are arranged at intervals and are parallel to the first direction, the detection lines are arranged at intervals and are parallel to the second direction, and the detection lines and the driving lines are insulated and staggered. The star-shaped electrode units are connected in series with each driving line, each star-shaped electrode unit comprises six first conical protrusions, and each star-shaped electrode unit is axisymmetric with the driving line as a symmetry axis. The detection electrode units are connected in series with each detection line, the detection electrode units are surrounded by four star-shaped electrode units, and each detection electrode unit is axisymmetric with the detection line as a symmetry axis.
Description
Technical field
The present invention relates to a kind of electrode structure, particularly relate to a kind of electrode structure of capacitive touch control plate.
Background technology
Become flourishing along with science and technology heals, electronic installations more and more many on the market, such as notebook, flat computer, mobile phone, various information household appliances equipment ... Deng, the operation of its main product controls no longer to be confined to the input modes such as conventional keyboard, button or mouse and operates, and more employings more conform with the touch control manner of intuition, user only need move in Trackpad (TouchPanel) is upper and presses the function can carrying out inputting and operating to point.
But making rapid progress along with touch technology and soft and hardware technology, touch control operation is more and more hommization also, many touch control operation modes are also more and more fine and smooth, therefore the resolution requirement for touch trajectory is also more and more high, otherwise erroneous judgement or the touch trajectory depicted just easily occurs not as expected.
And the mode improving touch control operation sensitivity can generally be divided into software to improve and hardware improves two kinds.So-called software mode improvement refers to the probability being reduced the appearance mistake of touch control operation by change contact panel driver and algorithm; Hardware mode is then the part directly improveing contact panel, and wherein namely a kind of mode is improved electrode structure.
For mutual tolerance formula contact panel, please refer to Fig. 1, is prior art schematic diagram.The matrix type structure that the electrode structure of contact panel is made up of the wire interlocked, the material of wire is essentially transparent conductive material, as ITO.Staggered wire can be divided into many drive wires on first direction and many detection lines in second direction, and between drive wire and detection line, insulation is staggered.After utilizing drive wire to transmit drive singal, the capacitance of drive wire and detection line staggered place (node) can be measured from detection line.When finger or other conductor are near to or in contact with during to contact panel surface, the capacitance that the Nodes of this finger close or this conductor measures can obviously change, and can learn the position of this object on contact panel whereby.
The drive wire of traditional type contact panel is often connected in series by Rhombus pole unit respectively with detection line and forms.This kind of diamond-shaped element, because of its structural symmetry, can accomplish that basic finger detects and location easily.But because touch-control application is now more and more wider, not only single, double finger touch control gesture develops outside more more meticulous operations of not easily locating; During many fingers touch-control, respectively refer between signal, also to interfere with each other and then to increase the difficulty detecting contact.This makes the work that accurately must judge touch trajectory, except will having good soft firmware algorithm, also must rely in hardware design and provide better signal to noise ratio (S/N ratio).
Summary of the invention
In view of this, the invention provides a kind of electrode structure of capacitive touch control plate, comprise many drive wires, many detection lines, multiple star-shaped electrode unit, multiple detecting electrode unit and multiple absolute electrodes.Drive wire is intervally installed and is parallel to first direction, and detection line is intervally installed and is parallel to second direction, drive wire and detection line insulated from each other staggered.Star electrode unit is serially connected with each drive wire, and each star electrode unit comprises six pyramidal projections, and each star electrode take drive wire as axis of symmetry and axisymmetricly.Detecting electrode unit strings is connected to each detection line, and each detecting electrode unit is taken detection line as axis of symmetry and axisymmetricly by four star electrode units institute around, each detecting electrode unit.Absolute electrode insulation is arranged between star electrode unit and detecting electrode unit.
The present invention improves the electrode structure of conventional condenser Trackpad, by forming multiple star electrode unit at drive wire, and make each star electrode unit comprise six pyramidal projections, adopt the detecting electrode unit with its complementation, signal intensity when making finger touch of the present invention is apparently higher than the signal intensity of classic diamond shape electrode simultaneously.
Accompanying drawing explanation
Fig. 1 is prior art schematic diagram;
Fig. 2 is the schematic diagram of first embodiment of the invention;
Fig. 3 is the schematic diagram of second embodiment of the invention;
Fig. 4 is the schematic diagram of third embodiment of the invention;
Fig. 5 is the schematic diagram of fourth embodiment of the invention;
Fig. 6 is the schematic diagram of fifth embodiment of the invention;
Fig. 7 is the schematic diagram of sixth embodiment of the invention;
Fig. 8 is the schematic diagram of seventh embodiment of the invention.
Reference numeral
1 ~ 7: the electrode structure 10 of capacitive touch control plate: drive wire
11: star electrode unit 11 ': high-order star electrode unit
12: the first pyramidal projections 121: the first edges
13: the second pyramidal projections 131: the second edges
14: rectangular protrusions 20: detection line
21,21 ': detecting electrode unit 211: rhombus extension
212: bar shaped extension 214: extension
31,31 ', 31 ": absolute electrode 41: detecting electrode unit
51: star electrode unit 61: star electrode unit
71: star electrode unit 81: star electrode unit
90: drive wire 91: rhombus electrode
92: detection line
Embodiment
Please refer to Fig. 2, is the schematic diagram of first embodiment of the invention, discloses a kind of electrode structure 1 of capacitive touch control plate, comprises: many drive wires 10, many detection lines 20, multiple star electrode unit 11 and multiple detecting electrode unit 21.
Drive wire 10 is intervally installed and is parallel to first direction, and detection line 20 is intervally installed and is parallel to second direction, and detection line 20 is insulated from each other staggered with drive wire 10.Star electrode unit 11 is serially connected with on each drive wire 10, and each star electrode unit 11 comprises six the first pyramidal projections 12, and each star electrode 11 with drive wire 10 for axis of symmetry and axisymmetricly.Detecting electrode unit 21 is serially connected with on each detection line 20, each detecting electrode unit 21 by four star electrode units 11 institute around, and each detecting electrode unit 21 with detection line 20 for axis of symmetry and axisymmetricly.In addition, each detecting electrode unit 21 along first direction forward with oppositely comprise an extension 214 respectively.
In the electrode structure 1 of capacitive touch control plate, star electrode unit 11 obviously has the girth longer than existing Rhombus pole unit, and the shape of detecting electrode unit 21 and star-shaped electrode unit 11 complementation, therefore the edge length that detection line 20 is adjacent with drive wire 10 increases, capacitive coupling intensity between the two can be significantly improved, also namely, the capacitance signal that neighbouring node is stronger can be provided.In addition, the angle that each first pyramidal projections 12 has two first 121, two the first edges 121, edge is less than 90 degree.
Please refer to Fig. 3, is the schematic diagram of second embodiment of the invention, discloses a kind of electrode structure 2 of capacitive touch control plate.The present embodiment and the essential difference of the first embodiment are that drive wire 10 comprises multiple mutual high-order star electrode unit 11 ' be connected in series.First pyramidal projections 12 of each high-order star electrode unit 11 ' also comprises two the second pyramidal projections 13, is divided into the mid point at two the first edges 121.The angle at two the first edges 121 of each the first pyramidal projections 12 is 60 degree.The angle that each second pyramidal projections 13 has two second 131, two the second edges 131, edge is also 60 degree.
In addition, in the electrode structure 2 of capacitive touch control plate, each detecting electrode unit 21 ' shape complementarity is in high-order star electrode unit 11 ', except in first direction forward with oppositely distinctly comprise except a rhombus extension 211, each detecting electrode unit 21 ' also distinctly comprises three bar shaped extensions 212 along the two ends of second direction.In this design, the edge length that high-order star electrode unit 11 ' is adjacent with detecting electrode unit 21 ' is longer, can provide stronger capacitance signal.
Please refer to Fig. 4, is the schematic diagram of third embodiment of the invention, discloses a kind of electrode structure 3 of capacitive touch control plate.Along the projection of first direction on the detecting electrode unit 21 that the detecting electrode unit 41 of the present embodiment does not have the first embodiment, this kind of design is when many fingers press same detection line 20 simultaneously, contribute to reducing signal base line in not by the probability that is also driven high of Nodes of finger touching, and then reduce contact erroneous judgement probability.In addition, the present embodiment has absolute electrode 31, and absolute electrode 31 insulation is arranged between star electrode unit 11 and detecting electrode unit 41, and is not formed with star electrode unit 11 or detecting electrode unit 41 and be electrically connected.Absolute electrode 31 can adopt and star electrode unit 11 or the identical or different conductive material of detecting electrode unit 41.In optical effect, absolute electrode 31 fills up the room beyond star electrode unit 11 or detecting electrode unit 41, increases substrate surface uniformity coefficient, glass refraction is consistent, and reduces the visuality of electrode pattern.Electrically, absolute electrode 31 plays the part of the role isolating adjacent detecting electrode unit 41, to reduce the reciprocal effect between adjacent two Parallel testing electrode units 41.
In addition, in the present embodiment, each detecting electrode unit 41 of the electrode structure 3 of capacitive touch control plate is 1 to a thirtieth/3rd of the extreme length L2 along second direction along the extreme length L1 of first direction.Just must avoid the situation causing resistance excessive because detecting electrode unit is narrow.
Please refer to Fig. 5, is the schematic diagram of fourth embodiment of the invention, discloses a kind of electrode structure 4 of capacitive touch control plate, and compared to the first embodiment, each star electrode unit 51 of the present embodiment does not all have acute angle.In addition, the summit of each the first pyramidal projections 12 of star electrode unit 51 is placed in rectangular protrusions 14, also be namely arranged at the confluce at two the first edges 121 of each the first pyramidal projections 12, make the outer peripheral edges of star electrode unit 51 not have acute angle, to avoid electron accumulation problem; First pyramidal projections 12 of axis is widened along second direction by rectangular protrusions 14, then effectively can reduce the impedance of drive wire.
Please refer to Fig. 6, is the schematic diagram of fifth embodiment of the invention, discloses a kind of electrode structure 5 of capacitive touch control plate, and the star electrode unit 61 of the present embodiment does not only have acute angle.Rectangular protrusions 14 is placed in the summit being positioned at the first pyramidal projections 12 on drive wire 10 axle of star electrode unit 61 by the present embodiment, and four the first pyramidal projections 12 on non axial are modified to fillet along second direction, the outer peripheral edges of star electrode unit 61 are made not have acute angle, to avoid electron accumulation problem; First pyramidal projections 12 of axis is widened along second direction by rectangular protrusions 14, then effectively can reduce the impedance of drive wire.
Please refer to Fig. 7, is the schematic diagram of sixth embodiment of the invention, discloses a kind of electrode structure 6 of capacitive touch control plate.The star electrode unit 71 of the present embodiment does not have acute angle.Rectangular protrusions 14 is placed in the summit being positioned at the first pyramidal projections 12 on drive wire 10 axle of star electrode unit 71 by the present embodiment, and four the first pyramidal projections 12 on non axial are blocked a part along first direction, the outer peripheral edges of star electrode unit 71 are made not have acute angle, to avoid electron accumulation problem; First pyramidal projections 12 of axis is widened along second direction by rectangular protrusions 14, then effectively can reduce the impedance of drive wire.In addition, the present embodiment tool absolute electrode 31 ', absolute electrode 31 ' insulation is arranged between star electrode unit 71 and detecting electrode unit 21, and is not formed with star electrode unit 71 or detecting electrode unit 21 and be electrically connected.Absolute electrode 31 ' can adopt and star electrode unit 71 or the identical or different conductive material of detecting electrode unit 21.In optical effect, absolute electrode 31 ' fills up the room beyond star electrode unit 71 or detecting electrode unit 21, increases substrate surface uniformity coefficient, glass refraction is consistent, and reduces the visuality of electrode pattern.Electrically, absolute electrode 31 ' then plays the part of the role isolating adjacent detecting electrode unit 21, to reduce the reciprocal effect between adjacent two Parallel testing electrode units 21.
Please refer to Fig. 8, is the schematic diagram of seventh embodiment of the invention, discloses a kind of electrode structure 7 of capacitive touch control plate.The essential difference of the present embodiment and the 6th embodiment is that each star electrode unit 81 does not arrange rectangular protrusions along the first pyramidal projections of drive wire 10 axis in summit place and detecting electrode unit 41 does not have extension along first direction.Star electrode unit 81 blocks a part along first direction in four the first pyramidal projections 12 on non axial as the 6th embodiment, to make the summit of aforementioned four the first pyramidal projections 12 all not have acute angle, and then avoids electron accumulation problem.The detecting electrode unit 41 of the present embodiment is as the 3rd embodiment, and this kind of design, when many fingers press same detection line 20 simultaneously, contributes to reducing signal base line in not by the probability that is also driven high of Nodes of finger touching, and then reduce contact erroneous judgement probability.In addition, the region of the present embodiment further beyond star electrode unit 81 and detecting electrode unit 41 arranges absolute electrode 31 ".Absolute electrode 31 " insulation is arranged between star electrode unit 81 and detecting electrode unit 41, and do not formed with star electrode unit 81 or detecting electrode unit 41 and be electrically connected.Absolute electrode 31 " can adopt and star electrode unit 81 or the identical or different conductive material of detecting electrode unit 41.In optical effect, absolute electrode 31 " fill up room beyond star electrode unit 81 or detecting electrode unit 41, increase substrate surface uniformity coefficient, reduce the visuality of electrode pattern.Electrically, absolute electrode 31 " then play the part of the role isolating adjacent detecting electrode unit 41, to reduce the reciprocal effect between adjacent two Parallel testing electrode units 41.In addition, the absolute electrode 31 with block " in broken shape, also, absolute electrode need not fill up room with the form of monoblock, and multiple small size absolute electrode can be adopted fill up same room.
Although the present invention discloses as above with aforesaid preferred embodiment; but itself and be not used to limit the present invention; anyly be familiar with those skilled in the pertinent art without departing from the spirit and scope of the present invention; can carry out numerous variations and modification to it, therefore scope of patent protection of the present invention should define with this instructions appending claims and be as the criterion.
Claims (9)
1. an electrode structure for capacitive touch control plate, is characterized in that, comprises:
Multiple drive wire, is intervally installed and is parallel to a first direction;
Multiple detection line, is intervally installed and is parallel to a second direction, those detection lines and those drive wires insulated from each other staggered;
Multiple star electrode unit, be serially connected with each this drive wire, each this star electrode unit comprises six the first pyramidal projections, each this first pyramidal projections comprises a rectangular protrusions, this rectangular protrusions is arranged at the summit of this pyramidal projections, and each this star electrode unit with this drive wire for axis of symmetry and axisymmetricly; And
Multiple detecting electrode unit, is serially connected with each this detection line, those detecting electrode unit individually by four these star electrode units institute around, each this detecting electrode unit with this detection line for axis of symmetry and axisymmetricly.
2. the electrode structure of capacitive touch control plate according to claim 1, is characterized in that, each this first pyramidal projections has two the first edges, and the angle at these two the first edges is less than 90 degree.
3. the electrode structure of capacitive touch control plate according to claim 2, it is characterized in that, the angle at these two the first edges of each this first pyramidal projections is 60 degree, each this star electrode unit also comprises two the second pyramidal projections, be divided into the mid point at these two the first edges, each this second pyramidal projections has two the second edges, and the angle at these two the second edges is 60 degree.
4. the electrode structure of capacitive touch control plate according to claim 3, is characterized in that, each this detecting electrode unit comprises two rhombus extensions in this first direction, and the two ends along this second direction distinctly comprise three bar shaped extensions.
5. the electrode structure of capacitive touch control plate according to claim 1, is characterized in that, the outer peripheral edges of each this star electrode unit do not have acute angle.
6. the electrode structure of capacitive touch control plate according to claim 1, is characterized in that, each this detecting electrode unit distinctly comprises an extension along the two ends of this first direction.
7. the electrode structure of capacitive touch control plate according to claim 1, is characterized in that, each this detecting electrode unit is 1 to a thirtieth/3rd of the extreme length along this second direction along the extreme length of this first direction.
8. the electrode structure of capacitive touch control plate according to claim 1, is characterized in that, also comprises multiple absolute electrode, and insulation is arranged between those star electrode units and those detecting electrode unit.
9. the electrode structure of capacitive touch control plate according to claim 8, is characterized in that, the absolute electrode with block is broken shape.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100140025A TWI442299B (en) | 2011-11-02 | 2011-11-02 | Electrode structure of capacitive touch panel |
| TW100140025 | 2011-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103105980A CN103105980A (en) | 2013-05-15 |
| CN103105980B true CN103105980B (en) | 2016-02-10 |
Family
ID=48313890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210392453.4A Expired - Fee Related CN103105980B (en) | 2011-11-02 | 2012-10-16 | Electrode structure of capacitive touch control panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103105980B (en) |
| TW (1) | TWI442299B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105487698B (en) * | 2014-09-16 | 2018-11-23 | 群创光电股份有限公司 | Touch panel and touch-control display panel |
| TWI514232B (en) * | 2015-06-23 | 2015-12-21 | Innolux Corp | Touch display panel |
| EP3488329A4 (en) | 2016-07-19 | 2020-01-15 | Boe Technology Group Co. Ltd. | Touch substrate, mask plate for fabricating the same, and fabricating method thereof |
| KR102411682B1 (en) * | 2017-11-16 | 2022-06-21 | 엘지디스플레이 주식회사 | Touch display device and panel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101995993A (en) * | 2009-08-03 | 2011-03-30 | 爱特梅尔公司 | Electrode layout for touch screens |
| CN102043548A (en) * | 2009-10-14 | 2011-05-04 | 胜华科技股份有限公司 | Capacitive touch-control panel |
| CN201828892U (en) * | 2010-11-02 | 2011-05-11 | 摩贝斯电子(苏州)有限公司 | Touch pad |
| CN102227705A (en) * | 2008-10-01 | 2011-10-26 | 集成装置技术公司 | Alternating, complementary conductive element pattern for multi-touch sensor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010009456A (en) * | 2008-06-30 | 2010-01-14 | Micro Gijutsu Kenkyusho:Kk | Electrostatic capacity type touch panel |
| JP2010244357A (en) * | 2009-04-07 | 2010-10-28 | Toshiba Mobile Display Co Ltd | Touch panel of capacitance detection type |
| KR101713940B1 (en) * | 2010-04-07 | 2017-03-09 | (주)멜파스 | Panel and device for sensing touch input |
-
2011
- 2011-11-02 TW TW100140025A patent/TWI442299B/en not_active IP Right Cessation
-
2012
- 2012-10-16 CN CN201210392453.4A patent/CN103105980B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102227705A (en) * | 2008-10-01 | 2011-10-26 | 集成装置技术公司 | Alternating, complementary conductive element pattern for multi-touch sensor |
| CN101995993A (en) * | 2009-08-03 | 2011-03-30 | 爱特梅尔公司 | Electrode layout for touch screens |
| CN102043548A (en) * | 2009-10-14 | 2011-05-04 | 胜华科技股份有限公司 | Capacitive touch-control panel |
| CN201828892U (en) * | 2010-11-02 | 2011-05-11 | 摩贝斯电子(苏州)有限公司 | Touch pad |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI442299B (en) | 2014-06-21 |
| CN103105980A (en) | 2013-05-15 |
| TW201319900A (en) | 2013-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8922501B2 (en) | Capacitive sensing device comprising cross-shaped sensing elements | |
| US8410795B1 (en) | Serpentine touch sensor pattern | |
| CN101714048A (en) | A capacitive sensing device and sense method | |
| CN104793819B (en) | Self-capacitance touch screen structure, In-cell touch panel and liquid crystal display | |
| CN103455227B (en) | Capacitive touch screen and display device | |
| CN104461207A (en) | Single-layer capacitance touch screen and touch display device | |
| CN103105980B (en) | Electrode structure of capacitive touch control panel | |
| CN205028263U (en) | Capacitance sensor | |
| CN102279681A (en) | Wiring structure of induction layer | |
| CN104503640B (en) | A kind of bendable contact panel | |
| TW201416934A (en) | Touch panel | |
| CN102622154B (en) | Capacitance type touch-control panel | |
| CN102880368A (en) | Method for scanning touch screen | |
| CN104885043B (en) | Touch-sensing device and method | |
| CN102033637A (en) | Touch screen position detection method | |
| CN203894734U (en) | Capacitive touch screen and display device | |
| CN102645997B (en) | Touch control panel and touch point distinguishing method of touch control panel | |
| CN104571760B (en) | Panel and its position of touch detection method with touch controllable function | |
| CN105677094A (en) | Touch control panel, touch control point detection method and display device | |
| CN102855043A (en) | Multi-point identification capacitor screen with single conducting layer | |
| CN103927031A (en) | Touching control structure | |
| CN102915169A (en) | Touch screen scanning method | |
| CN103092451B (en) | The scan method of touch screen | |
| KR101278283B1 (en) | Touch screen device | |
| CN109564490A (en) | Touch-control display panel and touch control detecting method, touch control display apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160210 Termination date: 20181016 |