CN202013563U - Touch control panel of a capacitance type touch-screen - Google Patents
Touch control panel of a capacitance type touch-screen Download PDFInfo
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- CN202013563U CN202013563U CN2011200799035U CN201120079903U CN202013563U CN 202013563 U CN202013563 U CN 202013563U CN 2011200799035 U CN2011200799035 U CN 2011200799035U CN 201120079903 U CN201120079903 U CN 201120079903U CN 202013563 U CN202013563 U CN 202013563U
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Abstract
The utility model provides a touch control panel of a capacitance type touch-screen. The touch control panel comprises a substrate, a transparent conducting membrane disposed on the right side of the substrate and a transparent conducting membrane disposed on the back side of the substrate. By setting the square resistance of the ITO conducting membrane on the substrate back side of the touch control panel of the capacitance type touch-screen as 5 to 30 ohm/sq, the utility model omits the metal membrane wires on the back side, thereby only needs to etch the ITO lines twice, correspondingly simplifies the technical process of product, increases qualified rate greatly, and reduces the cost of the touch control function panel realistically.
Description
Technical field
The utility model touch-screen field relates in particular to a kind of contact panel of capacitive touch screen.
Background technology
Capacitive touch screen has been realized multi-point touch and the amplification of being convenient to operate, has been dwindled, spinfunction, therefore favored by people, become the bigger obstruction that present capacitive touch screen is promoted but cost is higher, wherein the manufacturing cost of contact panel is higher is unusual important reasons.Referring to the existing two-sided ITO(tin indium oxide shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4) the electric conduction routing capacitance type touch-control panel, ITO electric conduction routing 11,12 is distributed in the two sides of substrate, Fig. 2 shows the ITO electric conduction routing 12(X direction at substrate 14 back sides), Fig. 3 shows the positive ITO electric conduction routing 11(Y direction of substrate 14), Fig. 4 is its sectional view.The ITO conductive layer square resistance of the front and back of substrate 14 is higher, (Ω/ is an ITO membrane impedance unit to be generally 80～100 Ω/, be meant that a foursquare thin film of conductive material limit is to the resistance between the limit), mainly be because the square resistance of ITO film when 80 Ω/, the transmittance of ITO film is about about 88%, higher relatively, can improve the transmittance of whole touch screen product, but because the ITO electric conduction routing 12 at the dorsal edge place of substrate 14 is thinner, cause the fine rule place directly over must increase layer of metal film line (Mo-Al-Mo or Mo or Cu) 13, to reduce the line resistance of walking of ITO herein, metal film line 13 generally is to adopt the method for vacuum coating to prepare, and this directly causes the cost material cost of contact panel to increase; On the other hand, behind the increase metal film line 13, the adhesion between metal film line 13 and the ITO is difficult to control, and metal film line 13 comes off easily in the production run, causes yield to descend; In addition, because after increasing metal film line 13, metal film line 13 and ITO film all need etching, plated film several times just, simultaneously, and also etching several times, technological process is very complicated, and yield is difficult to control; More than some all cause the cost of present touch controllable function substrate higher.
Summary of the invention
The purpose of this utility model provides a kind of contact panel of capacitive touch screen, is intended to solve existing double-sided multi-layer conductive film structure contact panel complex process, technological deficiency that cost is high.
For realizing above-mentioned utility model purpose, the nesa coating that the contact panel of a kind of capacitive touch screen that the utility model provides comprises substrate and is arranged at the nesa coating of substrate front side and is arranged at substrate back.
Further, the described nesa coating that is arranged at the nesa coating of substrate front side and is arranged at substrate back is the ITO nesa coating.
Further, the described square resistance that is arranged at the transparent ITO conducting film of substrate back is 5～30 Ω/.
Further, the described square resistance that is arranged at the transparent ITO conducting film of substrate back is 10～30 Ω/.
Further, the described square resistance that is arranged at the transparent ITO conducting film of substrate front side is 5 Ω/～100 Ω/.
Further, the described square resistance that is arranged at the transparent ITO conducting film of substrate front side is 60 Ω/～100 Ω/.
Further, on the transparent ITO conducting film of the transparent ITO conducting film of described substrate front side and substrate back respectively photoetching electric conduction routing is arranged.
Further, it is characterized in that the pattern of described electric conduction routing is the integrated square point-like of the strip of quadrature.
Further, the pattern of described electric conduction routing is the rhombus of fit or the hexagon of fit.
Further, described substrate is a glass substrate.
Than prior art, the contact panel of the capacitive touch screen that the utility model provides is set to 5～30 Ω/ by the square resistance of the ITO conducting film of substrate back, omitted the metal film line at the back side, only need twice ITO circuit of etching, simplified the technological process of product, its yield can be greatly enhanced, and has reduced the cost of touch controllable function panel conscientiously.
Description of drawings
Fig. 1 is the ITO cabling synoptic diagram of existing two-sided ITO electric conduction routing structure contact panel.
Fig. 2 is the back side (directions X) the ITO electric conduction routing figure of contact panel among Fig. 1.
Fig. 3 is front (Y direction) the ITO electric conduction routing figure of contact panel among Fig. 1.
Fig. 4 is the cross-sectional view of Fig. 1.
Fig. 5 is the contact panel diagrammatic cross-section of the two-sided ITO electric conduction routing of the utility model structure.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Shown in Fig. 5, the contact panel of the capacitive touch screen that the utility model preferred embodiment provides comprises substrate 53, be arranged at the ITO electric conduction routing 51 in substrate 53 fronts, be arranged at the ITO electric conduction routing 52 at substrate 53 back sides.The utility model is on existing touch-screen basis, removed metal film line 13(with reference to shown in Figure 4), in order to remove the metal film line 13 at the back side, the square resistance of the ITO conducting film at substrate 53 back sides is set to 5～30 Ω/, through test, the square resistance of ITO film is when 10 Ω/, and the transmittance of ITO film also is about about 88%.Owing to reduced the square resistance of ITO film, so the resistance at the fine rule place of ITO cabling also can decrease, and walk the requirement that line resistance can satisfy product, therefore can omit metal film line 13 of the prior art.
In this preferred embodiment, the ITO pattern on substrate 53 two sides is the integrated square point-like of the strip of quadrature, and the ITO figure on actual substrate 53 two sides also can be other shapes, is the rhombus of fit, the hexagon of fit etc. as the ITO figure on two sides.
The making step of the contact panel of the capacitive touch screen that the utility model preferred embodiment provides is:
Step 1., on the front of touch base plate 53 plating layer of transparent ITO conducting film;
Step 2., the transparent ITO conducting film of lithography step in 1..
Step 3., plate layer of transparent ITO conducting film at the back side of substrate 53, and the square resistance of this transparent ITO conducting film is 5～30 Ω/;
Step 4., the transparent ITO conducting film of lithography step in 3..
Above-mentioned steps also can change into:
Step 1., at the conducting film of the front of touch base plate 53 plating layer of transparent;
Step 2., plate the transparent ITO conducting film that one deck square resistance is 5～30 Ω/ at the back side of touch base plate;
Step 3., lithography step 1., the transparent ITO conducting film in 2..
Contact panel than existing double-sided multi-layer conductive film structure need be in the two-sided etching of substrate more than three times, and need etching metal film line 13, technology is very complicated, the contact panel of the capacitive touch screen that the utility model provides only needs twice ITO circuit of etching, simplified the technological process of product, its yield can be greatly enhanced, and has reduced the cost of touch controllable function panel conscientiously.
The above only is preferred embodiment of the present utility model, not in order to restriction the utility model.All any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. the contact panel of a capacitive touch screen, it comprises substrate, it is characterized in that further comprising nesa coating that is arranged at substrate front side and the nesa coating that is arranged at substrate back.
2. the contact panel of capacitive touch screen according to claim 1 is characterized in that, the described nesa coating that is arranged at the nesa coating of substrate front side and is arranged at substrate back is the ITO nesa coating.
3. the contact panel of capacitive touch screen according to claim 2 is characterized in that, the described square resistance that is arranged at the transparent ITO conducting film of substrate back is 5～30 Ω/.
4. the contact panel of capacitive touch screen according to claim 2 is characterized in that, the described square resistance that is arranged at the transparent ITO conducting film of substrate back is 10～30 Ω/.
5. the contact panel of capacitive touch screen according to claim 2 is characterized in that, the described square resistance that is arranged at the transparent ITO conducting film of substrate front side is 5 Ω/～100 Ω/.
6. the contact panel of capacitive touch screen according to claim 2 is characterized in that, the described square resistance that is arranged at the transparent ITO conducting film of substrate front side is 60 Ω/～100 Ω/.
7. the contact panel of capacitive touch screen according to claim 2 is characterized in that, on the transparent ITO conducting film of described substrate front side and the transparent ITO conducting film of substrate back respectively photoetching electric conduction routing is arranged.
8. the contact panel of capacitive touch screen according to claim 7 is characterized in that, the pattern of described electric conduction routing is the integrated square point-like of the strip of quadrature.
9. the contact panel of capacitive touch screen according to claim 7 is characterized in that, the pattern of described electric conduction routing is the rhombus of fit or the hexagon of fit.
10. the contact panel of capacitive touch screen according to claim 1 is characterized in that, described substrate is a glass substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200799035U CN202013563U (en) | 2011-03-24 | 2011-03-24 | Touch control panel of a capacitance type touch-screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200799035U CN202013563U (en) | 2011-03-24 | 2011-03-24 | Touch control panel of a capacitance type touch-screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202013563U true CN202013563U (en) | 2011-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200799035U Expired - Fee Related CN202013563U (en) | 2011-03-24 | 2011-03-24 | Touch control panel of a capacitance type touch-screen |
Country Status (1)
| Country | Link |
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| CN (1) | CN202013563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375683A (en) * | 2013-08-16 | 2015-02-25 | 晨星半导体股份有限公司 | Sensing channel graphic design method for touch panel |
| CN106415382A (en) * | 2014-01-23 | 2017-02-15 | 3M创新有限公司 | Method for patterning a microstructure |
-
2011
- 2011-03-24 CN CN2011200799035U patent/CN202013563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104375683A (en) * | 2013-08-16 | 2015-02-25 | 晨星半导体股份有限公司 | Sensing channel graphic design method for touch panel |
| CN104375683B (en) * | 2013-08-16 | 2018-06-19 | 晨星半导体股份有限公司 | The induction channels configurations method of touch panel |
| CN106415382A (en) * | 2014-01-23 | 2017-02-15 | 3M创新有限公司 | Method for patterning a microstructure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20111019 Termination date: 20160324 |