CN102033677A - Conductive line of multipoint resistance type touch screen - Google Patents
Conductive line of multipoint resistance type touch screen Download PDFInfo
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- CN102033677A CN102033677A CN201010579713XA CN201010579713A CN102033677A CN 102033677 A CN102033677 A CN 102033677A CN 201010579713X A CN201010579713X A CN 201010579713XA CN 201010579713 A CN201010579713 A CN 201010579713A CN 102033677 A CN102033677 A CN 102033677A
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Abstract
The invention discloses a method for improving the linearity of a multipoint resistance type touch screen. By using the method, by adjusting the contact area between respective transparent conductive film strips of an upper conductive layer and a lower conductive layer of the multipoint resistance type touch screen and respective conductive lines, the contact resistance is changed, the resistance difference of different conductive lines can be made up, the electrical performances of all loops in the touch screen are ensured to be consistent and the linearity of the touch screen is improved.
Description
Technical field
The present invention relates to prepare resistive touch screen with multi-point touch function with screen printing technique.
Background technology
Touch-screen is a kind of remarkable input equipment that improves man machine operation interface, have intuitively, simply, advantage efficiently.Along with development of electronic technology, the use of touch screen is more and more general.In the past, various types of touch-screens constantly occur, and comprise resistance-type, condenser type, infrared and surface acoustic wave type touch-screen.Wherein, resistive touch screen is the market mainstream.In the recent period, the capacitive touch screen technical development becomes can discern its surperficial multiple point touching, is convenient to the user by the light multiple complicated operations that realizes file, recreation of simple action, has the multi-point touch function, more and more very popular.But the real user of capacitive touch screen is less, and main cause is that it costs an arm and a leg and present touch-screen manufacturer can not adopt prior art to hatch the technology of preparing of this class touch-screen.Although the cost of resistive touch screen is lower, resistive touch screen can only be discerned its surperficial single-point touches, even there is multiple point touching, can only think that also main frame provides a touch point coordinate, has certain limitation, can not satisfy the demands of consumers.Resistive touch screen is handled by it being made subregion, in conjunction with specific signal scanning and data processing, can discern its surperficial multiple point touching, various touch functions and effect with capacitive touch screen, and existing touch-screen manufacturer do not need to drop into any new production equipment can this class touch-screen of volume production, have bigger practical popularization significance.
It is to realize by following process that subregion with resistive touch screen of multi-point touch function is handled: the transparent conductive film of the last conductive layer of touch-screen is etched into is parallel to each other and film tape insulated from each other, the transparent conductive film of lower conductiving layer is etched into is parallel to each other and film tape insulated from each other, the film tape of last conductive layer is vertical mutually with the film tape of lower conductiving layer, and all film tapes in the upper and lower conductive layer all are independently to be connected with touch screen controller by the conducting wire with all interior film tape two ends of lower conductiving layer.In order to improve the ability of touch-screen identification multiple spot, need reduce the width of film tape, avoid two touch points to be positioned at a film tape, increased the film tape quantity in the upper and lower conductive layer like this, therefore, the conducting wire quantity of this class touch-screen is bigger.The technology of preparing of general resistive touch screen is serigraphy, its printing precision is generally 0.1mm, more conducting wire can increase the width of the non-window area of touch-screen, dwindles the width of window area, and this does not meet the trend of the touch-screen of the narrow frame of development, and, in the preparation of this class touch-screen, many bad problems that opens circuit can appear in the conducting wire of serigraphy 0.1mm width, and the width of conducting wire is too narrow, its resistance is big more, can influence the linearity of touch-screen.Therefore in the production of reality, the width of conducting wire can be greater than 0.1mm, and this will further dwindle the width of window area.Therefore, adopt screen printing technique to prepare the resistive touch screen with multi-point touch function, and do not influence the form width of touch-screen, the yield of guarantee touch-screen is one problem to be solved.
Summary of the invention
There are the problems referred to above in view of the resistive touch screen with multi-point touch function adopts the screen printing technique preparation, the invention provides a kind of conducting wire method for designing of resistive touch screen, make the preparation of resistive touch screen can adopt screen printing technique.
For realizing above-mentioned target, conducting wire of the present invention method for designing all is designed to two-layer for the conducting wire in the upper and lower conductive layer of resistive touch screen that will have the multi-point touch function, no matter be to go up between interior two-layer conducting wire of conductive layer or the two-layer conducting wire in the lower conductiving layer to have a layer insulating, avoid short circuit.
Resistive touch screen of the present invention conducting wire method for designing has following advantage:
Solved the interior design of the finite space multiply conducting wire problem of the non-window area of resistive touch screen of multi-point touch function, the preparation of this class touch-screen can be prepared by screen printing technique, avoid adopting the high precision manufacturing equipment, and, can increase the width of conducting wire, ensure the production yield and the linear characteristic of touch-screen.
Description of drawings
Fig. 1 is the structure of multi-touch resistance-type touch-screen.
Fig. 2 is the last conductive layer of multi-touch resistance-type touch-screen and the structure of conductive layer.
Fig. 3 is the upper and lower conductive layer combination skeleton view of multi-touch resistance-type touch-screen.
Fig. 4 is the partial enlarged drawing of Fig. 3.
Fig. 5 first embodiment of the invention
Fig. 6 second embodiment of the invention
Embodiment
In order to describe content of the present invention in detail, the present invention will be further described below in conjunction with specification drawings and specific embodiments, but the scope that the present invention protected is not limited thereto.Clear for the ease of the present invention is narrated, size among the figure and part-structure have carried out processing and amplifying.
The present invention relates to prepare resistive touch screen with multi-point touch function with screen printing technique.Fig. 1 is the core texture of multi-touch resistance-type touch-screen, comprises conductive layer (1), lower conductiving layer (2), insulating point layer (3), compliant conductive circuit plate (4) and touch screen controller (5).The upper surface of the lower surface of conductive layer on it (1) and lower conductiving layer (2) is that etched many of forming are parallel to each other and transparent conductive film bar (6) (7) and the conducting wire that is connected them (8) (9) insulated from each other, as shown in Figure 2.The transparent conductive film bar (7) of wherein going up the transparent conductive film bar (6) of conductive layer and lower conductiving layer is vertical mutually, and their direction can be exchanged.Conducting wire (8) (9) is positioned at non-window area, touch-screen edge.Because the quantity of conducting wire is more, and the precision of serigraphy is limited and produce the yield problem, and the non-window area area that needs to increase touch-screen is to hold the multiply conducting wire, and this mode has been sacrificed the touch screen window region area.Fig. 3 is the upper and lower conductive layer combination figure with multi-touch resistance-type touch-screen.Fig. 4 be among Fig. 3 along A-A ' cross section enlarged drawing, there are three conducting wires (8) in last conductive layer surface, there are 7 conducting wires (9) in the lower conductiving layer surface.After the combination of the upper and lower conductive layers of touch-screen, the short circuit of conducting wire, all there is a layer insulating (10) (11) in the surface of conducting wire, and for fixing upper and lower conductive layers, all there is one deck tack coat (12) (13) in the surface of insulation course.In order not increase the area of non-window area, the conducting wire that the present invention will go up in conductive layer, the lower conductiving layer is designed to two-layer, reduce the quantity of conducting wire in every layer of conducting wire layer, ensure and do not increase the area of non-window area, can increase simultaneously the width of every conducting wire in the conductive layer, can ensure the yield of production, reduce the resistance of conducting wire and have better linearity.
Embodiment one
As shown in Figure 5, three conducting wires of last conductive layer shown in Figure 4 being designed to two-layer, comprising two conducting wires (81) and a conducting wire (82) respectively in two-layer, is a layer insulating (101) between the two-layer conducting wire; 7 conducting wires of lower conductiving layer being designed to two-layer, comprising 4 conducting wires (91) and 3 conducting wires (92) respectively in two-layer, is an insulation course (111) between the two-layer conducting wire.For fear of last conducting wire (82) and (92) short circuit, all there is an insulation course (102) (112) in its surface; For fixing upper and lower conductive layer, there is one deck tack coat (12) (13) in insulation course (102) (112) surface.From figure, can demonstrate, the width of every conducting wire (81) (82) (91) (92) of last conductive layer and lower conductiving layer all increases, and can guarantee to adopt serigraphy like this, and the electric conductivity of circuit is good, and can avoid a lot of production bad, improve the yield of product.After double-layer structure is adopted in the conducting wire, can dwindle the width of non-window area, increase the width of window area, meet the development trend of narrow frame touch-screen.
Embodiment two
As shown in the figure, only 7 conducting wires (9) of lower conductiving layer shown in Figure 4 being designed to two-layerly, comprising 4 conducting wires (91) and 3 conducting wires (92) respectively in two-layer, is an insulation course (111) between the two-layer conducting wire (91) (92); And 3 conducting wires (8) of going up conductive layer are still designed in one deck, because enough 3 conducting wires of width design are arranged.
Claims (5)
1. method that improves multi-touch resistance-type touch-screen linearity, it is characterized in that: the resistive touch screen of multi-point touch, conductive layer on it (1) comprises the conducting wire (4) at a plurality of transparent conductive film bars (3) and transparent conductive film bar (3) two ends, and lower conductiving layer (2) comprises the conducting wire (6) at a plurality of transparent conductive film bars (5) and transparent conductive film bar (5) two ends.Regulate the contact area between each transparent conductive film bar (3) (5) and each conducting wire (4) (6), change its contact resistance, make the electrical property unanimity in all loops in the upper and lower conductive layer (1) (2), improve the linearity of touch-screen.
2. the material that goes up conductive layer (1) as claimed in claim 1 is polyethylene terephthalate (being called for short PET).
3. the material of lower conductiving layer as claimed in claim 1 (2) is polyethylene terephthalate or glass.
4. the direction of transparent conductive film bar as claimed in claim 1 (3) (5) is vertical, and its material is ITO.
5. the Ag slurry of conducting wire as claimed in claim 1 (4) (6) for solidifying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010579713XA CN102033677A (en) | 2010-12-07 | 2010-12-07 | Conductive line of multipoint resistance type touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010579713XA CN102033677A (en) | 2010-12-07 | 2010-12-07 | Conductive line of multipoint resistance type touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN102033677A true CN102033677A (en) | 2011-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010579713XA Pending CN102033677A (en) | 2010-12-07 | 2010-12-07 | Conductive line of multipoint resistance type touch screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750037A (en) * | 2012-06-27 | 2012-10-24 | 福建联迪商用设备有限公司 | Penetration attack preventing liquid crystal touch screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561500A (en) * | 2000-11-03 | 2005-01-05 | 伊罗接触系统公司 | Touchscreen having multiple parallel connections to each electrode in a series resistor chain on the periphery of the touch area |
| CN101286107A (en) * | 2008-05-27 | 2008-10-15 | 张文 | Multi-point electric resistance touch screen |
| CN201548943U (en) * | 2009-12-18 | 2010-08-11 | 深圳市北泰显示技术有限公司 | Resistance type touch screen with multi-point touch function |
| CN102279688A (en) * | 2010-06-12 | 2011-12-14 | 深圳欧菲光科技股份有限公司 | Conducting circuits for resistance type touch screen with multi-point touch control |
-
2010
- 2010-12-07 CN CN201010579713XA patent/CN102033677A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1561500A (en) * | 2000-11-03 | 2005-01-05 | 伊罗接触系统公司 | Touchscreen having multiple parallel connections to each electrode in a series resistor chain on the periphery of the touch area |
| CN101286107A (en) * | 2008-05-27 | 2008-10-15 | 张文 | Multi-point electric resistance touch screen |
| CN201548943U (en) * | 2009-12-18 | 2010-08-11 | 深圳市北泰显示技术有限公司 | Resistance type touch screen with multi-point touch function |
| CN102279688A (en) * | 2010-06-12 | 2011-12-14 | 深圳欧菲光科技股份有限公司 | Conducting circuits for resistance type touch screen with multi-point touch control |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750037A (en) * | 2012-06-27 | 2012-10-24 | 福建联迪商用设备有限公司 | Penetration attack preventing liquid crystal touch screen |
| CN102750037B (en) * | 2012-06-27 | 2015-05-13 | 福建联迪商用设备有限公司 | Penetration attack preventing liquid crystal touch screen |
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Application publication date: 20110427 |