CN202189340U - Electrode structure of touch panel and touch panel - Google Patents
Electrode structure of touch panel and touch panel Download PDFInfo
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- CN202189340U CN202189340U CN2011201834036U CN201120183403U CN202189340U CN 202189340 U CN202189340 U CN 202189340U CN 2011201834036 U CN2011201834036 U CN 2011201834036U CN 201120183403 U CN201120183403 U CN 201120183403U CN 202189340 U CN202189340 U CN 202189340U
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Abstract
The utility model provides an electrode structure of a touch panel, which comprises a plurality of first electrode area blocks and second electrode area blocks arranged at intervals on a base plate surface, a plurality of first leads for connecting adjacent first electrode area blocks and a plurality of second leads for connecting adjacent electrode area blocks. Each second lead comprises at least one connection portion and at least a pair of second lead branches, and each pair of the second lead branches is arranged on two sides of the connection portion and used for connecting the connection portion and adjacent second electrode area blocks. The first leads and the second leads are arranged in crossing mode and are insulated from each other. The structure can overcome the defects of big thickness of the touch plate and complex technology.
Description
Technical field
The present invention is relevant for the touch screen field, particularly about a kind of electrode structure of the contact panel that is used for capacitance type touch-control panel and the contact panel that adopts this electrode structure.
Background technology
Contact panel (Touch Panel) is applied in the electronic equipment more and more widely at present.They realize various functions as a kind of input equipment that replenishes or even replace common keyboard and mouse in order to control electronic equipment.
Known contact panel is to lay induction region at a substrate surface, and its induction region is the purpose that reaches touch-control in order to the signal of the finger of induction human body or induction pen.The employed material of this induction region mostly adopts transparent conductive film, makes the user when operation, through pressing this transparent conductive film to corresponding picture on this display, reaches the function of touch-control.
The touch-control principle of the normal employing of institute at present generally can be divided into different techniques principles such as resistance-type, capacitor induction type, infrared induction, induction, sound wave induction type.The principle of work of this capacitor induction type contact panel capacitance variations that to be the transparency electrode of utilize arranging with static between the human body combine is produced wherein detects the coordinate of its position of touch from the induced current that is produced.Because the capacitor induction type contact panel is got life-span, operating temperature and initial strength everyway ready at penetrability, hardness, accuracy rate, reaction time, touch-control and is had preferable advantage, so at present by a large amount of employings.
Touch the position on contact panel in order to detect the user with finger or induction pen, the dealer develops various capacitive induction touch sensing technology.For example in No. 6970160 patent of invention case of United States Patent (USP), disclosed a kind of trellis touch-control sensing system, it can be applicable to survey the position of touch at a touch-control sensing face.This trellis touch-control sensing system comprises two capacitive sensing layers, separates with a middle barrier material therebetween, to form capacity effect.Each capacitive sensing layer comprises the conductive component that essence is arranged in parallel.Two capacitive sensing layers are perpendicular to one another in fact.Each conductive component comprises the losenges of a sequence, links together through narrow conductor wire.Conductive component on each capacitive sensing layer is to be electrically connected to answer lead.One control circuit provides signal to two group conductive component through lead, is received the induced signal that is produced by inductive component to touch on this surface on time, and judges the position of touch at each layer.
In this previous patented technology; Can be used to the function that the sensing user touches contact panel though all disclosed; And this contact panel also all is laid with the structure of touch-control sensing unit; But this previous patented technology adopts two capacitive sensing layers, separates to form the structural design of capacity effect with a barrier material therebetween.When adopting the contact panel of this type of structural design, though can reach the function of capacitance touching control induction, the structural thickness of whole contact panel is thicker, is unfavorable for frivolous requirement.Moreover; When implementing the electrode structure of this traditional contact panel; It must form different capacitive sensing layers at the upper and lower surfaces of substrate; Circuit connection technology with for example substrate perforation, perforation conductive layer, wiring connects each related electrode block again, so comparatively numerous and diverse at process aspect.
Summary of the invention
Technical matters to be solved by this invention aims to provide a kind of electrode structure of new contact panel, and promptly a kind of both can to have overcome Trackpad thickness thicker, the defective of complex process, the electrode structure of the contact panel that can accomplish with simple and easy technology again.
To achieve these goals, the electrode structure of a kind of contact panel of the present invention, it comprises that the first region piece of a plurality of each intervals and the second electrode block are arranged at a substrate surface; A plurality of in order to connect first lead of adjacent said the first region piece; And it is a plurality of in order to connect second lead of the adjacent said second electrode block; Wherein, each said second lead comprises that at least one conducting portion and at least one pair of second lead prop up, and every pair of said second lead props up and is arranged at said conducting portion both sides in order to connect said conducting portion and the adjacent said second electrode block; Said first lead and the arranged in a crossed manner and mutually insulated of said second lead.
In addition, the present invention also provides a kind of contact panel, comprises electrode structure, in order to produce the touch sensible signal; And controller, in order to receive and to handle said touch sensible signal.This electrode structure comprises that the first region piece of a plurality of each intervals and the second electrode block are arranged at a substrate surface; A plurality of in order to connect first lead of adjacent said the first region piece; And it is a plurality of in order to connect second lead of the adjacent said second electrode block; Wherein, each said second lead comprises that at least one conducting portion and at least one pair of second lead prop up, and every pair of said second lead props up and is arranged at said conducting portion both sides in order to connect said conducting portion and the adjacent said second electrode block; Said first lead and the arranged in a crossed manner and mutually insulated of said second lead.
Via the technological means that the present invention adopted; Make the same plane that a plurality of the first region pieces and a plurality of second electrode block in the electrode structure of contact panel all is laid in substrate; And can reach designs simplification, reduce the effect of structural thickness; And the adjacent electrode block person of being used through this first electrode group and a plurality of second electrode groups is when touching; According to the area discrepancy that the adjacent electrode block is touched, can form the capacitance variations signal and deliver to control circuit, to survey the position that user's finger touches.And when the first electrode group of the electrode structure of making this contact panel and each electrode block in the second electrode group and lead; Only need to accomplish in the single surperficial execution of substrate the electrode structure of required contact panel with simple and easy Wiring technique; So when industry is utilized, have the advantage that technology is simple and easy, qualification rate is high, cost of manufacture is low.
Description of drawings
Below in conjunction with embodiment and accompanying drawing, the present invention is done further explain.
Fig. 1 is the synoptic diagram of the electrode structure of contact panel of the present invention; And
Fig. 2 is the enlarged drawing of A part among Fig. 1.
Embodiment
Below will be with reference to accompanying drawing, and combine embodiment that the present invention is explained in further detail and describe.
Fig. 1 is the synoptic diagram of the electrode structure of contact panel of the present invention.As shown in Figure 1; One embodiment of the present of invention provide a kind of electrode structure 300 of contact panel; It is for example on glass that it is formed at a substrate (figure does not show); Include the first region piece 311 at a plurality of intervals, and the second electrode block 321 at a plurality of intervals, and this first region piece 311 and these second electrode block, 321 each intervals.Wherein, a plurality of the first region pieces 311 are formed at least one group first electrode group 310, and preferably the first electrode group 310 is many groups; Likewise, a plurality of second electrode blocks 321 are formed at least one group second electrode group 320, and preferably this second electrode group 320 is many groups, and this first electrode group 310 is electrically insulated with this second electrode group 320 each other.Two the first region pieces 311 adjacent in the same first electrode group 310 form electric connection through 312 conductings of one first lead; Likewise, two second electrode blocks 321 adjacent in the same second electrode group 320 form electric connection through 322 conductings of one second lead.A plurality of the first region pieces 311 can be sent to a control circuit (figure does not show) with the touch-control sensing signal via a plurality of signal lines (figure does not show) with a plurality of second electrode blocks 321.
Continuous see also Fig. 1 and Fig. 2, each second lead 322 comprises that a conducting portion 324 and a pair of second lead prop up 323.Each first lead 312 has a perforate 341, and conducting portion 324 is arranged in each perforate 341 one by one.Form a closed gap 342 between corresponding first lead 312 of each conducting portion 324 and its place perforate 341, make this first lead 312 and these conducting portion 324 spaces, and form and be electrically insulated.A pair of second lead in each second lead 322 prop up 323 be arranged at the conducting portion 324 in same second lead 322 respectively both sides, in order to connect this conducting portion 324 in the second adjacent electrode block 321.In other words, each second lead props up an end of 323 and connects a conducting portion 324, and the other end connects one second electrode block 321.Therefore, the second electrode block 321 in the same second electrode group 320 props up 323 by plural number to second lead and is together in series with a plurality of conducting portions 324, and can the touch-control sensing signal be sent to a control circuit (figure does not show) via a plurality of signal lines (figure does not show).
Need to prove that it is arranged in a crossed manner that each second lead props up 323 and first lead 312, and prop up between 323 and first lead 312 at each second lead an insulation course is set that this insulation course is to be processed by transparent insulation material.Specifically, this insulation course 330 includes a plurality of insulating trips 331, and this insulating trip 331 makes this second lead prop up 323 and forms with this first lead 312 and to be electrically insulated.
In the said structure; The first region piece 311, the second electrode blocks 321 all are positioned on the same surface of a substrate, the first electrode group 310 that they form by him; The second axial electrode group 320 likewise also is positioned on this same surface, therefore can reduce the thickness of contact panel.Again because, therefore the first region piece 311, the second electrode blocks 321 all are positioned on the same surface of a substrate, can be formed at substrate surface simultaneously, technology is simple and easy.
As user during with this electrode structure 300 of finger touches, the zone of being touched can cover at least one the first region piece 311 and at least one second electrode block 321 in the second electrode group 320 in the first electrode group 310.The first region piece 311 that is capped can form the mutual capacitance effect between the second electrode block 321, signal line is sent to control circuit with this mutual capacitance signal, is calculated by this control circuit that to judge this touching zone be where to be positioned at the position.
Need to prove; This first region piece 311, the second electrode block 321 and first lead 312 are to be processed by transparent conductive material; This transparent conductive material can be selected for use be tin indium oxide (Indium TinOxide, ITO) or transparent conductive materials such as indium zinc oxide or aluminum zinc oxide; And propping up 323, also can process by second lead by being selected from above-mentioned transparent conductive material.Conducting portion 324 is formed by transparent conductive material or metal, adopts transparent conductive material can avoid visible, and preferably, this conducting portion 324 is consistent with the material of this first lead 312.
This first region piece 311, the second electrode block 321 be shaped as geometric configuration, for example rhombus, hexagon, octagon, rectangle, triangle etc.
Compare with the foregoing description; Another embodiment of the present invention also provides a kind of electrode structure of contact panel; The difference place only is that above-mentioned formation laying is formed up to the reversed in order of substrate surface; Promptly this second lead props up 323 and is arranged on the substrate surface, and insulation course 330 (insulating trip 331) is positioned at this second lead and props up 323 top, and this first lead 312 is across this insulation course 330 (insulating trip 331).The other technologies content is all identical, and those skilled in the art can realize present embodiment with reference to above-mentioned detailed explanation.And can realize above-mentioned technique effect equally.
Preferably, this second lead props up 323 and adopts metal material, for example copper, silver or aluminium.Because the concatenation ability of metal material is better than ITO, therefore second lead props up 323 concatenation ability and improves, i.e. difficult fracture the in junction of its and this insulating trip 331, and metal material is more excellent than the electric conductivity of ITO; Again because; Second is to adopt second lead to prop up 323 design on axially; Article two, overlap and electrically connect through this conducting portion 324 between second lead props up 323; Therefore, when electrically connecting this second electrode block 321, need not the plain conductor of a whole piece, can reduce like this and second lead propped up 323 visibility.Further be, every pair second lead props up 323 along second the length on axially, i.e. D1 and D2 sum are less than its apart distance L respectively and between the adjacent second electrode block 321 junctions.Therefore, can reduce by second lead that adopts metal material to process and prop up 323 visibility.
Certainly, according to the practical design needs, two second separate leads during every pair second lead props up prop up 323 position relation and can be adjusted to mutual alignment or stagger.In addition, this second lead props up 323 size and/or position and also can correspondingly adjust.Need to prove, can be provided with between two the second adjacent electrode blocks 321 and many second lead propped up 323, and second lead to prop up 323 quantity many more, the whole electric conductivity of second lead 322 is just good more with electrical connection properties.If wherein a pair of second lead props up 323 when fracture takes place, other prop up 323 to second lead and still realize electrically connecting, and make the second electrode group, 320 operate as normal.
Below the method for the electrode structure 300 of on substrate surface, making contact panel is described, form above-mentioned electrode structure 300, can adopt known etching, sputter, or technology such as wire mark.Below only making above-mentioned electrode structure 300 with etching technique describes.
At first, the substrate that cleans in a process (figure a does not show) for example surperficial formation layer of conductive film (is example with tin indium oxide ITO transparency conducting layer) that goes up of glass uses screen printing technology (screen printing) to prevent the technology of ablation shield printing (etching mask printing) then.After accomplishing anti-ablation shield typography; This substrate surface is carried out etching; Promptly on the surface of this substrate, form the first region piece 311, the second electrode block 321 of each interval; And connect first lead 312 that belongs to adjacent two the first region pieces 311 in the same first electrode group 310, make that all the first region pieces 311 in the same first electrode group 310 are connected in series.Simultaneously, on each first lead 312, form a perforate 341.
Form the step of a conducting portion 324; In each perforate 341, form a conducting portion 324; Make between this conducting portion 324 and corresponding first lead 312 to form a closed gap 342, with so that this first lead 312 and these conducting portion 324 spaces, and form and be electrically insulated.Preferably; When conducting portion 324 is manufactured from the same material with the first region piece 311, the second electrode block 321 and first lead 312; In this electrode block 311 of above-mentioned etching, the second electrode block 321 and first lead 312; Etch this closure gap 314 to form conducting portion 324, can reduce fabrication steps like this, raise the efficiency.
Form an insulation course 330 then, this insulation course 330 comprises a plurality of insulating trips 331, promptly on this first lead 312, covers a pair of insulating trip 331, and what this insulating trip 331 adopted is that transparent insulation material is processed.Above each insulating trip 331, form one second lead and prop up 323; Promptly this insulating trip 331 be provided with respectively what second lead prop up 323 and this first lead 312 between; Each second lead props up an end of 323 and electrically connects second contiguous with it in the same second electrode group 320 electrode block 321; The other end is electrically connected at this conducting portion 324, so that same group the second electrode block 321 is connected in series.
Certainly, according to the practical design needs, two second separate leads during every pair second lead props up prop up 323 position relation and can be adjusted to mutual alignment or stagger.In addition, this second lead props up 323 size and/or position and also can correspondingly adjust.
Certainly the method for making this electrode structure 300 also is included in the step of the periphery formation signal line of this electrode structure 300, and wherein this first region piece 311, the second electrode block 321 connect this signal line (figure does not show) respectively.
Compare with the foregoing description; Another embodiment of the present invention also provides a kind of manufacturing approach of electrode structure 300 of capacitive touch control plate; The difference place only is that above-mentioned formation laying is formed up to the reversed in order of substrate surface; Promptly this second lead props up 323 and is formed on the substrate surface earlier; This insulation course 330 (insulating trip 331) is formed at this second lead and props up 323 top, form this first region piece 311, the second electrode block 321 and this first lead 312 again, and this first lead 312 is across this insulation course 330 (insulating trip 331).The other technologies content is identical with the equal essence of technical characterictic, and those skilled in the art can realize present embodiment with reference to above-mentioned detailed explanation.
Simultaneously, the present invention also provides a kind of contact panel with above-mentioned electrode structure 300, and it includes for example glass, and aforesaid electrode structure 300 of a substrate (figure does not show), in order to produce the touch sensible signal; And a controller (figure does not show), in order to receive and to handle said touch sensible signal.
The above person of thought; Be merely preferred embodiment of the present invention; When not limiting practical range of the present invention with this; Simple equivalence that the content of promptly being put down in writing with claim of the present invention and instructions of the present invention is generally made changes and modifies, and all still belongs within the claim of the present invention institute covering scope.
Claims (18)
1. the electrode structure of a contact panel is characterized in that, comprising: the first region piece of a plurality of each intervals and the second electrode block are arranged at a substrate surface; A plurality of in order to connect first lead of adjacent said the first region piece; And it is a plurality of in order to connect second lead of the adjacent said second electrode block;
Wherein, each said second lead comprises that at least one conducting portion and at least one pair of second lead prop up, and every pair of said second lead props up and is arranged at said conducting portion both sides in order to connect said conducting portion and the adjacent said second electrode block; Said first lead and the arranged in a crossed manner and mutually insulated of said second lead.
2. the electrode structure of contact panel according to claim 1 is characterized in that, said conducting portion and the said first lead space and be electrically insulated.
3. the electrode structure of contact panel according to claim 2; It is characterized in that; Each said first lead is provided with a perforate, and each said conducting portion is arranged in each said perforate, and between said conducting portion and corresponding said first lead, forms a closed gap.
4. the electrode structure of contact panel according to claim 1 is characterized in that, between said first lead and said second lead prop up an insulation course is set.
5. the electrode structure of contact panel according to claim 4 is characterized in that, said insulation course comprises a plurality of insulating trips.
6. the electrode structure of contact panel according to claim 1 is characterized in that, said the first region piece and the said second electrode block are processed by transparent conductive material.
7. the electrode structure of contact panel according to claim 1 is characterized in that, said conducting portion is processed by transparent conductive material or metal.
8. the electrode structure of contact panel according to claim 1 is characterized in that, said second lead props up by transparent conductive material or metal to be processed.
9. the electrode structure of contact panel according to claim 7 is characterized in that, said transparent conductive material is tin indium oxide, indium zinc oxide or aluminum zinc oxide.
10. the electrode structure of contact panel according to claim 8 is characterized in that, said transparent conductive material is tin indium oxide, indium zinc oxide or aluminum zinc oxide.
11. the electrode structure of contact panel according to claim 7 is characterized in that, said metal is aluminium, copper or silver.
12. the electrode structure of contact panel according to claim 8 is characterized in that, said metal is aluminium, copper or silver.
13. the electrode structure of contact panel according to claim 6 is characterized in that, said insulation course is processed by transparent insulation material.
14. the electrode structure of contact panel according to claim 1 is characterized in that, also includes signal line, is connected to said the first region piece and the said second electrode block.
15. the electrode structure of contact panel according to claim 4 is characterized in that, said first lead is arranged at said substrate surface.
16. the electrode structure of contact panel according to claim 4 is characterized in that, said second lead props up and is arranged at said substrate surface.
17. the electrode structure of contact panel according to claim 1 is characterized in that, the length that every pair of said second lead props up is less than the distance between two adjacent said second electrode blocks.
18. a contact panel is characterized in that, comprising: the electrode structure of contact panel as claimed in claim 1, in order to produce the touch sensible signal; And controller, in order to receive and to handle said touch sensible signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201834036U CN202189340U (en) | 2011-05-28 | 2011-05-28 | Electrode structure of touch panel and touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201834036U CN202189340U (en) | 2011-05-28 | 2011-05-28 | Electrode structure of touch panel and touch panel |
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| Publication Number | Publication Date |
|---|---|
| CN202189340U true CN202189340U (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201834036U Expired - Lifetime CN202189340U (en) | 2011-05-28 | 2011-05-28 | Electrode structure of touch panel and touch panel |
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| CN (1) | CN202189340U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014071793A1 (en) * | 2012-11-09 | 2014-05-15 | 宝宸（厦门）光学科技有限公司 | Touch sensing electrode structure and manufacturing method thereof |
| CN104461189A (en) * | 2013-09-23 | 2015-03-25 | 胜华科技股份有限公司 | Touch panel |
| CN104503640A (en) * | 2014-12-24 | 2015-04-08 | 深圳市华星光电技术有限公司 | Flexible touch panel |
-
2011
- 2011-05-28 CN CN2011201834036U patent/CN202189340U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014071793A1 (en) * | 2012-11-09 | 2014-05-15 | 宝宸（厦门）光学科技有限公司 | Touch sensing electrode structure and manufacturing method thereof |
| CN104461189A (en) * | 2013-09-23 | 2015-03-25 | 胜华科技股份有限公司 | Touch panel |
| CN104461189B (en) * | 2013-09-23 | 2017-10-27 | 胜华科技股份有限公司 | Touch panel |
| CN104503640A (en) * | 2014-12-24 | 2015-04-08 | 深圳市华星光电技术有限公司 | Flexible touch panel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120411 |
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| CX01 | Expiry of patent term |