CN202267943U - Capacitive touch sensing device - Google Patents
Capacitive touch sensing device Download PDFInfo
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- CN202267943U CN202267943U CN2011202246811U CN201120224681U CN202267943U CN 202267943 U CN202267943 U CN 202267943U CN 2011202246811 U CN2011202246811 U CN 2011202246811U CN 201120224681 U CN201120224681 U CN 201120224681U CN 202267943 U CN202267943 U CN 202267943U
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Abstract
The utility model provides a capacitive touch sensing device. The device comprises a sensing electrode layer, a plurality of sensing electrode wires and a detection circuit, wherein the sensing electrode wires are arranged in parallel and comprise electrode blocks and connecting wires which are mutually crossed and connected; a middle area is formed between the sensing electrode wires; the detection circuit is electrically connected with the sensing electrode wires on the sensing electrode layer; a floating electrode is arranged in the middle area, is electrically separated from the detection circuit and fully dills the middle area; and the distance from the floating electrode to the sensing electrode wires is less than 30 mum. The capacitive touch sensing device has the main beneficial effects that: the floating electrode is arranged and filled between sensing electrodes, so the refractive index at each position of the sensing electrode layer is consistent, the electrodes are invisible, and the display effect is improved.
Description
Technical field
The utility model relates to a kind of capacitance touch induction installation, relates in particular to a kind of capacitance touch induction installation with electrode setting mode of optimization.
Background technology
Popular gradually along with mobile device, in man-machine interaction directly perceived more with touch graphical interfaces mode of operation easily since the user like, day by day universal.Support the touch sensible technology at this interface to become more and more important.Touch induction device also is touch-screen usually, and resistance-type, condenser type, surface acoustic wave type etc. are arranged.In touch screen technology, capacitive touch screen is compared resistive touch screen, and it is long to have a life-span, and transmittance is high, supports multiple point touching, can with staff directly through touching advantages such as mutual, occupied leading position in recent years.
The capacitance variation that capacitive touch screen mainly utilizes electrode and anthropolith (like finger) the static reciprocation when coming close to or in contact with this electrode on the touch-screen to be produced touches detection.Capacitive touch screen comes the recognizing touch operation regional location through electrode.Capacitive touch screen has along first direction, is also referred to as a plurality of X electrodes that are arranged side by side that directions X extends, and edge and this first direction second direction of intersecting, is also referred to as a plurality of Y electrodes that are arranged side by side that the Y direction is extended, and common directions X is perpendicular to the Y direction.On the industry; X electrode, Y electrode are through etching ITO mould formation respectively; The electrode layer that will have the X electrode then is superimposed with the electrode layer that has the Y electrode, and when the user contacted a certain zone of touch-screen, band X electrode and Y electrode identified position signalling respectively and send to control device; Control device receives the position signalling of touch area on position signalling on the directions X and Y direction, has just obtained the particular location of touch area on touch-screen.Usually, the form of electrode is a plurality of diamond-shaped areas that a line strings.
Yet the battery lead plate some places in the above-mentioned technology have electrode, and some places do not have electrode; And bring and refractive index big than the glass outer or the FILM layer of capacitance plate; Cause naked eyes can see the existence of electrode, especially under some specific angles and brightness, very obvious.The display effect that this has seriously influenced capacitance plate has reduced user experience.
Summary of the invention
The purpose of the utility model is to solve above-mentioned technical matters, provides a kind of electrode sightless capacitance touch induction installation.
The purpose of the utility model realizes that through following a kind of capacitance touch induction installation is provided it comprises: the induction electrode layer; Be positioned at many induced electricity polar curves on the induction electrode layer, said many parallel layouts of induced electricity polar curve, and every induced electricity polar curve includes electrode block and connecting line that interlaced connection is provided with, forms zone line between said each induced electricity polar curve; Testing circuit; Be electrically connected with the induced electricity polar curve on the induction electrode layer, be furnished with the electrode that swims in the said zone line, said electrode and the said testing circuit electrical isolation of swimming; And the electrode that swims is filled the distance of full said zone line and induced electricity polar curve less than 30 μ m.
Preferably, said induction electrode layer comprises mutually folded first electrode layer and the second electrode lay, and the bearing of trend of the induced electricity polar curve on the bearing of trend of the induced electricity polar curve on said first electrode layer and the second electrode lay is vertical.
Preferably, said electrode block is a rhombus, and the shape of the electrode block on each the bar induced electricity polar curve on the induction electrode layer is identical with the position, and the zone line between each bar induced electricity polar curve forms a plurality of blank blocks that communicate with each other.
Preferably, the said electrode that swims is distributed in each blank block, does not connect each other.
Preferably, the said electrode that swims is a regular hexagon.
Preferably, each electrode block of said first electrode layer is stacked in the zone line position of second electrode block.
Preferably, the thickness of said induction electrode layer is less than 50 μ m.
Preferably, said induction electrode layer is an etching ITO layer.
Preferably, the said electrode that swims is identical with the material of said induced electricity polar curve.
The beneficial effect of the utility model is mainly reflected in: be filled in the electrode that swims between the induction electrode through setting, make that the refractive index of each position of induction electrode layer is consistent, thereby it be invisible to let electrode become, and has improved display effect.
Description of drawings
Fig. 1 is the touch induction device diagrammatic cross-section of prior art.
Fig. 2 is the first electrode layer synoptic diagram of prior art.
Fig. 3 is the second electrode lay synoptic diagram of prior art.
Fig. 4 is the touch induction device diagrammatic cross-section of the preferred implementation of the utility model.
Fig. 5 is the first electrode layer synoptic diagram of the preferred implementation of the utility model.
Fig. 6 is the second electrode lay synoptic diagram of the preferred implementation of the utility model.
Embodiment
For setting forth the thought of the utility model more clearly; What will contrast below that the touch induction device of prior art introduces the utility model specifically is embodiment, in the prior art with the preferred implementation of the utility model in similar elements adopt identical title and label.
Like Fig. 1, the capacitance touch induction installation of prior art is formed by stacking a plurality of working linings that testing circuit and function have nothing in common with each other hereinafter to be referred as touch induction device usually, and working lining can comprise display layer, electrode layer, insulation course, screen layer etc. usually.Its function and principle all are that the people in the industry is known, other working linings are not done too much to introduce at this, introduce the induction electrode layer.
In this exemplary prior art, touch induction device comprises two induction electrode layers, is respectively first electrode layer 1 and the second electrode lay 3.All be provided with many induced electricity polar curves on each induction electrode layer, every induced electricity polar curve all is electrically connected in the testing circuit parallel layout.In conjunction with Fig. 2 and shown in Figure 3, first electrode layer 1 is provided with many induced electricity polar curves that extend along first direction, is called first electrode wires 5, and the second electrode lay 3 is provided with many induced electricity polar curves that extend along second direction, is called second electrode wires 7.Wherein, every induced electricity polar curve includes electrode block 9 and the connecting line that interlaced connection is provided with, and electrode block 9 can be square, rectangle, regular hexagon figures, is rhombus in this example, and the rhombus connection has less connection resistances; Connecting line is linear.Preferably, first direction is vertical each other with second direction, and promptly the bearing of trend of the induced electricity polar curve on the bearing of trend of the induced electricity polar curve on first electrode layer 1 and the second electrode lay 3 is vertical.First direction is the X direction of display screen, i.e. X-direction, and second direction is the y direction of display screen, i.e. Y direction.Such two electrode layers are the X axial coordinate and the Y axial coordinate in senses touch zone respectively, and convenient follow-up processing is calculated.In this example, electrode layer is an etching ITO layer.
Visible through Fig. 2 and Fig. 3; The shape of many induced electricity polar curves of each electrode layer is identical with the position, and distance is also fixed, thereby the electrode block 9 of many induced electricity polar curves against each other; Connecting line also against each other; Between the induced electricity polar curve, formed the bigger zone line of not arranging electrode, because electrode block 9 shapes on each induced electricity polar curve are identical with the position, zone line is divided into a plurality of blank blocks that communicate with each other.And after two range upon range of closing of induction electrode; The electrode block 9 of first electrode layer 1 and the second electrode lay 3 is positioned at the zone line of relative induction electrode layer each other; Promptly each electrode block of first electrode layer is stacked in the zone line position of second electrode block, and each electrode block of the second electrode lay is stacked in the zone line position of first electrode block.Because in each electrode layer, have the part of electrode block 9 different with the refractive index of the part that does not have electrode block 9, causing electrode block 9 is visible in some cases, has influenced the display effect of touch induction device.
In order to address the above problem, avoid electrode block 9 to influence display effect, the utility model improves prior art through following embodiment.
Like Fig. 4, improved touch induction device has all parts of above-mentioned exemplary prior art, like first electrode layer 1, the second electrode lay 3 etc., but also is provided with the electrode 11 that swims between the induced electricity polar curve in each induction electrode layer.
With reference to Fig. 5 and Fig. 6; The zone line of electrode 11 between a plurality of induced electricity polar curves of each electrode layer that swim, the electrode 11 that swims is filled full said zone line, and the distance between the electrode block 9 is less than 50 μ m; Preferably less than 30 μ m, surpassed human eye can identification the limit.Preferably, fill completely said zone line through the mode of in each blank block 9, all placing the electrode 11 that swims, and the electrode 11 that swims is identical with the material of electrode block 9.Thereby, on the entire electrode layer except human eye can not the slit of identification, the refractive index of each position is identical, has avoided electrode by the problem of naked eyes identification.
The electrode 11 that swims is not connected with testing circuit, electrical isolation with it, and do not connect mutually each other, do not constitute induction electrode.
Concrete; Between each first electrode wires 5 in first electrode layer 1 in the formed blank block; Be provided with the electrode 11 that swims; For the convenience of taking into account manufacturing and the filling rate of blank block, the electrode design of swimming becomes regular hexagon, and the slit between electrode 11 and the adjacent electrode block 9 of so still can guaranteeing to swim is all less than 30 μ m.Certainly, the shape that is designed to other also is feasible, for example, is designed to the asymmetric octagon of fitting fully with the shape of blank block.Each electrode that swims also can couple together, and forms the electrode wires of swimming, and with the induction electrode line parallel zone line between each first electrode wires 5 of so better filling is set.
In the formed blank block, be provided with the electrode that swims equally between each second electrode wires 7 in the second electrode lay 3, repeat no more at this.
Simultaneously, for the refraction that the section difference band that further reduces electrode layer comes, the thickness of electrode layer should be less than 60 μ m, preferably less than 50 μ m.
Claims (9)
1. capacitance touch induction installation comprises:
The induction electrode layer;
Be positioned at many induced electricity polar curves on the induction electrode layer, said many parallel layouts of induced electricity polar curve, and every induced electricity polar curve includes electrode block and connecting line that interlaced connection is provided with, forms zone line between said each induced electricity polar curve;
Induced electricity polar curve on testing circuit and the induction electrode layer is electrically connected, and it is characterized in that:
Be furnished with the electrode that swims in the said zone line, said electrode and the said testing circuit electrical isolation of swimming, and the distance that the electrode that swims is filled full said zone line and induced electricity polar curve is less than 30 μ m.
2. capacitance touch induction installation according to claim 1; It is characterized in that: said induction electrode layer comprises mutually folded first electrode layer and the second electrode lay, and the bearing of trend of the induced electricity polar curve on the bearing of trend of the induced electricity polar curve on said first electrode layer and the second electrode lay is vertical.
3. capacitance touch induction installation according to claim 2; It is characterized in that: said electrode block is a rhombus; And the shape of the electrode block on each the bar induced electricity polar curve on the induction electrode layer is identical with the position, and the zone line between each bar induced electricity polar curve forms a plurality of blank blocks that communicate with each other.
4. capacitance touch induction installation according to claim 3 is characterized in that: the said electrode that swims is distributed in each blank block, does not connect each other.
5. capacitance touch induction installation according to claim 4 is characterized in that: the said electrode that swims is a regular hexagon.
6. capacitance touch induction installation according to claim 3 is characterized in that: each electrode block of said first electrode layer is stacked in the zone line position of second electrode block.
7. capacitance touch induction installation according to claim 1 is characterized in that: the thickness of said induction electrode layer is less than 50 μ m.
8. capacitance touch induction installation according to claim 1 is characterized in that: said induction electrode layer is an etching ITO layer.
9. capacitance touch induction installation according to claim 1 is characterized in that: the said electrode that swims is identical with the material of said induced electricity polar curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202246811U CN202267943U (en) | 2011-06-29 | 2011-06-29 | Capacitive touch sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202246811U CN202267943U (en) | 2011-06-29 | 2011-06-29 | Capacitive touch sensing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267943U true CN202267943U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202246811U Expired - Fee Related CN202267943U (en) | 2011-06-29 | 2011-06-29 | Capacitive touch sensing device |
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| CN (1) | CN202267943U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855034A (en) * | 2011-06-29 | 2013-01-02 | 苏州超联光电有限公司 | Capacitance touch-sensitive device |
| CN106020531A (en) * | 2016-05-09 | 2016-10-12 | 京东方科技集团股份有限公司 | A touch screen and a touch device |
| TWI615759B (en) * | 2013-02-27 | 2018-02-21 | 未來奈米科技股份有限公司 | Touch pad structure using dummy pattern for electrostatic capacitive type touch screen |
-
2011
- 2011-06-29 CN CN2011202246811U patent/CN202267943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102855034A (en) * | 2011-06-29 | 2013-01-02 | 苏州超联光电有限公司 | Capacitance touch-sensitive device |
| TWI615759B (en) * | 2013-02-27 | 2018-02-21 | 未來奈米科技股份有限公司 | Touch pad structure using dummy pattern for electrostatic capacitive type touch screen |
| CN106020531A (en) * | 2016-05-09 | 2016-10-12 | 京东方科技集团股份有限公司 | A touch screen and a touch device |
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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 |
Granted publication date: 20120606 Termination date: 20140629 |
|
| EXPY | Termination of patent right or utility model |