CN202351839U - Capacitive touch panel structure - Google Patents

Capacitive touch panel structure Download PDF

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Publication number
CN202351839U
CN202351839U CN201120285221XU CN201120285221U CN202351839U CN 202351839 U CN202351839 U CN 202351839U CN 201120285221X U CN201120285221X U CN 201120285221XU CN 201120285221 U CN201120285221 U CN 201120285221U CN 202351839 U CN202351839 U CN 202351839U
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CN
China
Prior art keywords
control panel
capacitance type
type touch
induction electrode
lead
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Expired - Lifetime
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CN201120285221XU
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Chinese (zh)
Inventor
何宽鑫
谢燕俊
邹晓丹
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TPK Touch Solutions Xiamen Inc
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TPK Touch Solutions Xiamen Inc
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Priority to CN201120285221XU priority Critical patent/CN202351839U/en
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Publication of CN202351839U publication Critical patent/CN202351839U/en
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Abstract

The utility model provides a capacitive touch panel structure, which comprises inductive electrodes and peripheral lines, wherein the inductive electrodes include a plurality of conductive elements and a plurality of leads which are used for connecting conductive elements. The capacitive touch panel structure is characterized in that leads and peripheral lines are made of photosensitive materials having electrical conductivity. Photosensitive materials having electrical conductivity have the photosensitivity and the electrical conductivity at the same time, so that the materials can enable leads to be not likely to be seen by naked eyes and harmonize the overall visual effect of the appearance of the touch panel while providing good electrical connection; and photosensitive materials having electrical conductivity have high chemical stability, so that the defect that materials are oxidized when exposed in the air is eliminated, and a procedure for manufacturing a protective layer on a surface of the touch panel is omitted.

Description

The capacitance type touch-control panel structure
Technical field
The utility model relates to the capacitive touch control techniques, particularly about a kind of capacitance type touch-control panel structure.
Background technology
Contact panel applies in the work life in a large number, and contact panel is to lay induction region at a substrate surface usually, and its induction region is the purpose that reaches touch-control in order to the finger of induction human body or the writing implement that is similar to pen.The employed material of this induction region mostly adopts transparent conductive film (for example tin indium oxide ITO), makes the user when operation, by the transparent conductive film that presses corresponding to the picture of display, to reach the function of touch-control.
Difference according to the touch-control principle; Can contact panel be divided into various kind; Wherein capacitance type touch-control panel is got life-span, operating temperature and initial strength everyway ready at penetrability, hardness, accuracy, reaction time, touch-control and is had preferable advantage, so at present by a large amount of employings.
Fig. 1 is the synoptic diagram of convention capacitance type touch-control panel, this capacitance type touch-control panel 10 comprise a substrate 12 with at first induction electrode 14 of this substrate 12 upper edges first axial distribution with along second induction electrode 16 of second axial distribution.In Fig. 1; When the user contacts this capacitance type touch-control panel 10 with finger or other ground connection conductive body; Form touch point 18; First induction electrode 14 that is touched and second induction electrode 16 will produce capacitance variations, system (figure do not show) will judge touch point 18 positions of finger on capacitance type touch-control panel 10 according to the position of the induction electrode that capacitance variations takes place.
How to realize on substrate 12 that first induction electrode 14 and second induction electrode 16 are making emphasis of this capacitance type touch-control panel 10.Normally on substrate 12, cover conductive film, remove zone not with the light etch process again, and stay the pattern that needs, to form induction electrode.
In the capacitance type touch-control panel of convention, induction electrode generally adopts metal electrode material or transparent conductive material (like ITO).When using metal electrode material, have the problem of being seen by naked eyes, and be exposed in the air oxidized easily; When using transparent conductive material,, still have the easy oxidized problem in the air that is exposed to though do not have the problem of obviously being found out by naked eyes.Therefore,, all need on induction electrode, cover layer protective layer, and then increase the manufacturing process that makes protective seam on the contact panel surface no matter use metal electrode material or transparent conductive material.
The utility model content
The present invention provides a kind of capacitance type touch-control panel structure, and wherein induction electrode is made up of with the lead that is connected this conductive unit conductive unit, and this lead adopts the photosensitive material with electric conductivity to process; Possesses sensing optical activity and electric conductivity simultaneously owing to have the photosensitive material of electric conductivity; Therefore when providing excellent electrical property to connect, can make lead be not easy to be seen, coordinate the overall outward appearance visual effect of contact panel by naked eyes; And because this has the chemical stability height of the photosensitive material of electric conductivity; Can improve being exposed in the air and oxidized problem, therefore, also save the manufacturing process that makes protective seam on the contact panel surface.
The present invention provides a kind of capacitance type touch-control panel structure, comprising: induction electrode; Said induction electrode comprises plural conductive unit and a plurality of leads that are used to be connected said conductive unit, and it is characterized in that: said lead is processed by the photosensitive material with electric conductivity.
According to capacitance type touch-control panel structure of the present invention; It is characterized in that; Said induction electrode comprises first induction electrode of edge first axial distribution and second induction electrode of edge second axial distribution, and between said first induction electrode and said second induction electrode, lays insulation course.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that each said first induction electrode comprises a plurality of first conductive units and a plurality of first leads that are connected said first conductive unit; Each said second induction electrode comprises a plurality of second conductive units and a plurality of second leads that are connected said second conductive unit.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that said insulation course is the insulation film with plurality of openings; Said first conductive unit, said second conductive unit and said first lead are arranged at the back side of said insulation film, and corresponding said second conductive unit of said opening; Said second lead is arranged at the front of said insulation film, and passes said opening and connect said second conductive unit.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that said insulation course comprises a plurality of collets, each said collets is between said first lead and said second lead.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that said induction electrode is connected in perimeter circuit.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that said perimeter circuit is processed by identical photosensitive material with electric conductivity with said lead.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that said first conductive unit, said second conductive unit and said first lead are processed by transparent conductive material.
According to capacitance type touch-control panel structure of the present invention, it is characterized in that said insulation course is processed by transparent insulation material.
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 convention capacitance type touch-control panel;
Fig. 2 is the synoptic diagram of the structure of the capacitance type touch-control panel of the present invention's first embodiment;
Fig. 3 is the synoptic diagram of first processing procedure of the capacitance type touch-control panel of the present invention's first embodiment;
Fig. 4 is the synoptic diagram of second processing procedure of the capacitance type touch-control panel of the present invention's first embodiment;
Fig. 5 is the partial enlarged drawing of second processing procedure of the capacitance type touch-control panel of the present invention's first embodiment after accomplishing;
Fig. 6 is the synoptic diagram of the structure of the capacitance type touch-control panel of the present invention's second embodiment;
Fig. 7 is the synoptic diagram of first processing procedure of the capacitance type touch-control panel of the present invention's second embodiment; And
Fig. 8 is the synoptic diagram of second processing procedure of the capacitance type touch-control panel of the present invention's second embodiment.
Embodiment
Fig. 2 is the synoptic diagram of the structure of the capacitance type touch-control panel of the present invention's first embodiment.In Fig. 2, capacitance type touch-control panel 20 comprises induction electrode, insulation film 32 and perimeter circuit 40.
Induction electrode comprises along second induction electrode 30 of first induction electrode 28 of first axial distribution and edge second axial distribution.First induction electrode 28 comprises a plurality of first conductive units 22 and a plurality of first leads 26 that are connected first conductive unit 22, and second induction electrode 28 comprises a plurality of second conductive units 24 and a plurality of second leads 42 that are connected second conductive unit 24.
Perimeter circuit 40 is connected in first induction electrode 28 and second induction electrode 30, so can be by perimeter circuit 40 with being sent to control circuit (not icon) owing to touch the capacitance variation that produces on first induction electrode 28 and second induction electrode 30.
First conductive unit 22, second conductive unit 24 and first lead 26 are processed by transparent conductive material, and the perimeter circuit 40 and second lead 42 are processed by the photosensitive material with electric conductivity.Photosensitive material with electric conductivity is the photosensitive material of doping metals particle and/or carbon element particle.Wherein, metallic particles is gold, silver, copper, iron or aluminium, and combination in any.
General photosensitive material (or being called photoresistance) is nonconducting; The photosensitive material with electric conductivity of present embodiment ties up in the convention photosensitive material and to mix as the metallic particles of gold, silver, copper, iron or the aluminium of conduction etc.; The carbon element particle that perhaps conducts electricity; The perhaps combination of above particle makes it have electric conductivity.Simultaneously, because photosensitive material self has sensing optical activity and good chemical stability, therefore this conduction conductive photoreceptor material can have both electric conductivity, sensing optical activity and good chemical stability.Make lead or perimeter circuit with this conduction sensitization; Can be good at electrically connecting conductive unit to form induction electrode, simultaneously, under the situation of inapplicable Additional Protection layer; Also can make lead when being not easy to be found out, solve it and be exposed to and be prone to oxidized problem in the air by naked eyes.
In addition, when this photosensitive material with electric conductivity is used as lead or perimeter circuit,, therefore, can pass through above-mentioned doping way, make this photosensitive material have square resistance with electric conductivity because its thickness is very little.So-called square resistance (Sheet Resistance) is called face resistance again, when being used for being called rete resistance when rete is measured again.Square resistance has a specific character; The square measured value of size all is the same arbitrarily; Promptly no matter the length of side is 1 meter or 0.1 meter, the square resistance of square resistance all is the same, and it is relevant that square resistance and this of square resistance has the factors such as thickness of material of this square resistance.Therefore; Utilize this photosensitive material to make the lead or the perimeter circuit of capacitance type touch-control panel provided by the invention with electric conductivity with square resistance; When can make it have excellent conducting performance, also can not receive the uneven thickness of lead or perimeter circuit and the influence that causes.
Insulation film 32 as insulation course (is represented with cross hatching in Fig. 2; To show that layer is coated with first induction electrode 28 and second induction electrode 30 under the insulation film 32) be laid on first induction electrode 28 and second induction electrode 30, and insulation film 32 has plurality of openings 34.That is; First conductive unit 22, second conductive unit 24 and first lead 26 are arranged at the back side of insulation film 32; And the opening 34 of insulation film 32 is corresponding to second conductive unit 24; Second lead 42 is arranged at the front of insulation film 32, and passes these openings 34 and connect second conductive unit 24.Wherein, insulation film 32 is to be processed by transparent insulation material.
The processing procedure of the capacitance type touch-control panel 20 of first embodiment is please with reference to following graphic explanation.
Fig. 3 is the synoptic diagram of first processing procedure of the capacitance type touch-control panel of the present invention's first embodiment.First processing procedure: go up to form first axial first conductive unit 22 and second axial second conductive unit 24 at substrate (not shown), and form first lead 26 first conductive unit 22 is electrically connected to each other to form first electrode 28.
Fig. 4 is the synoptic diagram of second processing procedure of the capacitance type touch-control panel of the present invention's first embodiment.Second processing procedure: insulation film 32 etchings are formed plurality of openings 34; And with this insulation film 32 as insulation course with first conductive unit 22 of coverage diagram 3, second conductive unit 24, and first lead 26; Wherein, the position of the opening 34 of insulation film 32 system is positioned at second conductive unit, 24 places.
Fig. 5 is the partial enlarged drawing of second processing procedure of the capacitance type touch-control panel of the present invention's first embodiment after accomplishing.Because insulation film 32 (is represented with cross hatching in Fig. 5; To show that layer is coated with first induction electrode 28 and second induction electrode 30 under the insulation film 32) as insulation course to cover most induction electrode (first conductive unit 22; First lead 26 and second conductive unit 24; Second conductive unit 24 that exposes except opening 34 places of insulation film 32), the effect that therefore has the protection induction electrode.
The 3rd processing procedure: second lead 42 is electrically connected each second conductive unit 24 at opening 34 places of insulation film 32, each second conductive unit 24 by the connection of second lead 42 to form second electrode 30.Each perimeter circuit 40 that will be laid on the substrate (not shown) simultaneously, is electrically connected first induction electrode 28 and second induction electrode 30.After accomplishing above-mentioned three processing procedures, just can accomplish the structure of the capacitance type touch-control panel 20 of Fig. 2.
Therefore; Capacitance type touch-control panel 20 as three above-mentioned processing procedures of present embodiment are after completion is to have the perimeter circuit 40 and second lead 42 of the photosensitive material of electric conductivity, because the characteristic of above-mentioned photosensitive material; When providing excellent electrical property to connect; Can make lead be not easy to be seen, coordinate the overall outward appearance visual effect of contact panel by naked eyes, and because its good chemical stability; Also can improve second lead 42 and perimeter circuit 40 because of being exposed to problem oxidized in the air, save the manufacturing process that makes protective seam on the contact panel surface.
Fig. 6 is the synoptic diagram of the structure of the capacitance type touch-control panel of the present invention's second embodiment.In Fig. 6; The part of structure that the structure of the capacitance type touch-control panel 50 of second embodiment is different from the capacitance type touch-control panel 20 of first embodiment is: the capacitance type touch-control panel 50 of second embodiment does not have the insulation film 32 of the capacitance type touch-control panel 20 of first embodiment; In the capacitance type touch-control panel 50 of second embodiment, be between said first lead 51 and said second lead 58 as each collets 56 of the usefulness of insulation course.The second embodiment of the capacitive touch panel 50 of the structure is similar to the first embodiment of the capacitive touch panel 20, the structural elements of the description will be omitted, but the subsequent processing described in the icon.
The processing procedure of the capacitance type touch-control panel 50 of second embodiment is please with reference to following graphic explanation.
Fig. 7 is the synoptic diagram of first processing procedure of the capacitance type touch-control panel of the present invention's second embodiment.First processing procedure: go up to form first axial first conductive unit 53 and second axial second conductive unit 54 at substrate (not graphic), first axially on behind the first adjacent conductive unit 53 of first lead, 51 electrical connections to form first electrode 52.
Fig. 8 is the synoptic diagram of second processing procedure of the capacitance type touch-control panel of the present invention's second embodiment.Second processing procedure: the position at each first lead 51 forms collets 56.
The 3rd processing procedure: at each collets 56 place; By of the electrical connection of second lead 58 with the second adjacent conductive unit 54; And with the usefulness of collets 56 as second lead 58 and 52 isolation of first electrode; Second conductive unit 54 and second lead 58 through electrical connection form second electrode 62, and simultaneously, each perimeter circuit 60 that will be laid on the substrate (not shown) is electrically connected first induction electrode 52 and second induction electrode 62.Through perimeter circuit 60 with first induction electrode 52 and second induction electrode 62 on because the capacitance variation that touch to produce is sent to control circuit (not icon).After accomplishing above-mentioned three processing procedures, just can accomplish the structure of the capacitance type touch-control panel 50 of Fig. 6.
Wherein, a plurality of perimeter circuits 60 of second embodiment and second lead 58 are to adopt the photosensitive material with electric conductivity, so perimeter circuit 60 and second lead 58 have the said advantage of first embodiment equally.
First conductive unit, second conductive unit, first lead can be processed by transparent conductive material in the capacitance type touch-control panel of above-mentioned each embodiment, for example tin indium oxide (ITO); The insulation film of insulation course or collets are processed by transparent insulation material.Above-mentioned each assembly all can be made through the photoetch mode or the mode of printing of convention.
The present invention's advantage system provides a kind of structure of capacitance type touch-control panel; Wherein lead and perimeter circuit adopt the photosensitive material with electric conductivity, revolve optical activity and electric conductivity because above-mentioned photosensitive material possesses sense simultaneously, therefore when providing excellent electrical property to connect; Can make lead be not easy to be seen by naked eyes; Coordinate the overall outward appearance visual effect of contact panel, and because the chemical stability of these photosensitive materials is high, can improve long term exposure oxidized problem in air; Therefore, also save the manufacturing process that makes protective seam on the contact panel surface.
The above is merely preferred embodiment of the present invention, so can not limit scope of the present invention with this, the equivalence of promptly doing according to claim of the present invention and description changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims (9)

1. a capacitance type touch-control panel structure is characterized in that, comprising: induction electrode, comprise plural conductive unit and a plurality of leads that are used to be connected said conductive unit, and wherein said lead is processed by the photosensitive material with electric conductivity.
2. capacitance type touch-control panel structure according to claim 1; It is characterized in that; Said induction electrode comprises first induction electrode of edge first axial distribution and second induction electrode of edge second axial distribution, and between said first induction electrode and said second induction electrode, lays insulation course.
3. capacitance type touch-control panel structure according to claim 2 is characterized in that, each said first induction electrode comprises a plurality of first conductive units and a plurality of first leads that are connected said first conductive unit; Each said second induction electrode comprises a plurality of second conductive units and a plurality of second leads that are connected said second conductive unit.
4. capacitance type touch-control panel structure according to claim 3 is characterized in that, said insulation course is the insulation film with plurality of openings; Said first conductive unit, said second conductive unit and said first lead are arranged at the back side of said insulation film, and corresponding said second conductive unit of said opening; Said second lead is arranged at the front of said insulation film, and passes said opening and connect said second conductive unit.
5. capacitance type touch-control panel structure according to claim 3 is characterized in that said insulation course comprises a plurality of collets, and each said collets is between said first lead and said second lead.
6. capacitance type touch-control panel structure according to claim 1 is characterized in that said induction electrode is connected in perimeter circuit.
7. capacitance type touch-control panel structure according to claim 6 is characterized in that, said perimeter circuit is processed by identical photosensitive material with electric conductivity with said lead.
8. capacitance type touch-control panel structure according to claim 3 is characterized in that, said first conductive unit, said second conductive unit and said first lead are processed by transparent conductive material, and said second lead is processed by the photosensitive material with electric conductivity.
9. capacitance type touch-control panel structure according to claim 2 is characterized in that said insulation course is processed by transparent insulation material.
CN201120285221XU 2011-07-28 2011-07-28 Capacitive touch panel structure Expired - Lifetime CN202351839U (en)

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CN201120285221XU CN202351839U (en) 2011-07-28 2011-07-28 Capacitive touch panel structure

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Application Number Priority Date Filing Date Title
CN201120285221XU CN202351839U (en) 2011-07-28 2011-07-28 Capacitive touch panel structure

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102902425A (en) * 2011-07-28 2013-01-30 宸鸿科技(厦门)有限公司 Capacitive touch panel structure and manufacture method
CN103576959A (en) * 2012-08-01 2014-02-12 宸鸿科技(厦门)有限公司 Touch panel module and production method thereof
CN105988650A (en) * 2015-01-05 2016-10-05 致伸科技股份有限公司 Sensing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102902425A (en) * 2011-07-28 2013-01-30 宸鸿科技(厦门)有限公司 Capacitive touch panel structure and manufacture method
CN102902425B (en) * 2011-07-28 2016-06-08 宸鸿科技(厦门)有限公司 Capacitance type touch-control panel structure and manufacture method
CN103576959A (en) * 2012-08-01 2014-02-12 宸鸿科技(厦门)有限公司 Touch panel module and production method thereof
CN105988650A (en) * 2015-01-05 2016-10-05 致伸科技股份有限公司 Sensing device

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Granted publication date: 20120725

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