CN102478993A - Electronic device - Google Patents
Electronic device Download PDFInfo
- Publication number
- CN102478993A CN102478993A CN201010573849XA CN201010573849A CN102478993A CN 102478993 A CN102478993 A CN 102478993A CN 201010573849X A CN201010573849X A CN 201010573849XA CN 201010573849 A CN201010573849 A CN 201010573849A CN 102478993 A CN102478993 A CN 102478993A
- Authority
- CN
- China
- Prior art keywords
- conductive layer
- touch
- virtual key
- electronic installation
- screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Push-Button Switches (AREA)
- Position Input By Displaying (AREA)
Abstract
The invention relates to an electronic device which comprises a touch screen, an integrated circuit and at least one virtual key, wherein the touch screen comprises an insulated substrate and a first conducting layer arranged on one surface of the insulated substrate; and the first conducting layer is arranged on the surface, corresponding to a touch control region, of the insulated substrate and is electrically connected between the integrated circuit and the at least one virtual key.
Description
Technical field
The present invention relates to a kind of electronic installation, relate in particular to a kind of electronic installation with touch-screen and virtual key.
Background technology
In recent years, along with the high performance and the diversified development of various electronic installations such as mobile phone and touch navigation system, the electronic installation that the touch-screen of light transmission is installed in the viewing area increases gradually.But some function keys such as switching on and shutting down button still are arranged on the fuselage cover of said electronic installation through the mode of entity key, thereby have influenced the sealing of this electronic installation and reduced user's touch experience.For this reason; A user oriented side only is provided with pattern or the sign of representing this function key to some electronic installations at its touch-control interface; User's a side then is provided with a virtual key corresponding with this function key (Virtual Key), the touch action of using this virtual key sensing user to act on pattern or be marked with dorsad at this touch-control interface.
Said virtual key is arranged on the flexible PCB and through an integrated circuit (Integrated Circuit) and drives and this virtual key of sensing.Usually, said virtual key and integrated circuit are separately positioned on said touch-screen along the relative both sides of first direction, and join through one group of driving lead and one group of sensing lead.Yet said one group of driving lead and one group of sensing lead need cabling space and design accordingly and engineering such as assembling, are unfavorable for the design space utilization factor of electronic installation and increase manufacturing cost.
Summary of the invention
In view of this, necessary a kind of electronic installation simple in structure is provided.
A kind of electronic installation, it comprises a touch-screen, an integrated circuit and at least one virtual key.Said touch-screen comprises a dielectric base and is arranged on one first conductive layer on said dielectric base one surface that said first conductive layer is arranged on the surface of the corresponding touch area of said dielectric base.Said first conductive layer is connected electrically between said integrated circuit and the said at least one virtual key.
A kind of electronic installation, it comprises a touch-screen, an integrated circuit, a virtual key and a driving lead.Said touch-screen has the touch area of sensing touch action, and said first conductive layer is arranged on the surface of the corresponding touch area of said dielectric base.Said integrated circuit is arranged on the end of said touch-screen along first direction.Said virtual key is arranged on the other end of said touch-screen along first direction.This driving lead is connected electrically between said integrated circuit and the virtual key, and the drive signal that this integrated circuit is sent is transferred to said virtual key.Said first conductive layer is connected electrically between said integrated circuit and the virtual key, and the sensing signal that this virtual key is sent is transferred to said integrated circuit.
Compare with the touch-screen of prior art, the sensing lead of said integrated circuit of the connection in the electronic installation provided by the invention and virtual key substitutes with the conductive path of said first conductive layer that is arranged on said touch area.Thereby, need be between said integrated circuit and virtual key not extra said sensing lead be set.Simplify the structure of said electronic installation, save the design space of said electronic installation.
Description of drawings
Fig. 1 is the structural representation of the electronic installation of the embodiment of the invention.
Fig. 2 is the structural representation of the touch-screen in the electronic installation among Fig. 1.
Fig. 3 is the structural representation when first conductive layer in the touch-screen is connected with sensing electrode among Fig. 2.
Fig. 4 is the structural representation of a flexible PCB along a direction.
Fig. 5 is that flexible PCB among Fig. 4 is along the structural representation of another direction.
Fig. 6 is that the circuit of the electronic installation among Fig. 1 connects synoptic diagram.
The main element symbol description
Electronic installation 100
Touch-screen 10
Touch area 101
Cabling zone 102
Dielectric base 11
First conductive layer 12
Second conductive layer 13
Integrated circuit 20
Flexible PCB 30
Flexible PCB 31
Virtual key 32
The 3rd conductive layer 321
The 4th conductive layer 322
Sensing signal output terminal 34
Embodiment
The present invention provides a kind of electronic installation, and this electronic installation comprises a touch-screen, an integrated circuit and at least one virtual key (Virtual Key).Said integrated circuit and virtual key are arranged on the relative both sides of said touch-screen.
The conductive layer that said touch-screen comprises a dielectric base and is arranged on said dielectric base one surface.Said touch-screen has a touch area, and said conductive layer is arranged on the surface of the corresponding touch area of dielectric base.Said conductive layer is connected electrically between said integrated circuit and the virtual key, and the sensing signal that this virtual key is sent is transferred to said integrated circuit.
Said dielectric base is the transparent insulation material; Tygon (Polyethylene for example; PE), polycarbonate (Polycarbonate, PC), the poly terephthalic acid diethylester (Polyethylene Terephthalate, PET), polymethylmethacrylate (PolyMethyl MethAcrylate; PMMA), optical cement (Optical Clear Adhesive, OCA) or the glass of thinning.
Said conductive layer can have the same tropism of resistance (Isotropy Impedance), also can have resistance anisotropy (Anisotropic Impedance).So-called resistance is meant that with the tropism said conductive layer is equal basically along the resistance of all directions that are parallel to this conductive layer.And so-called resistance anisotropy is meant the said conductive layer resistance along the resistance of a direction that is parallel to this conductive layer much larger than another direction that is parallel to this conductive layer.For example at this conductive layer can be greater than 100 along the ratio of the resistance on the vertical both direction that is parallel to this conductive layer.Said conductive layer can needs single-point type or multipoint mode be selected according to touch-screen; So-called single-point type is that touch-screen can only be discerned a touch point position simultaneously, and so-called multipoint mode to be touch-screen can discern two or more touch point position simultaneously.If resistance during with the tropism, this touch-screen is the single-point type touch-screen such as, the conductive layer of above-mentioned resistive touch screen and capacitive touch screen, if this touch-screen is the multipoint mode touch-screen during resistance anisotropy.When said touch-screen was resistive touch screen, it comprised two said dielectric base and relative spacing setting and is separately positioned on two dielectric base, two conductive layers of the corresponding touch area on surface in opposite directions.When said touch-screen was capacitive touch screen, it can be provided with a conductive layer in the corresponding touch area, a surface of said dielectric base, and corresponding respectively touch area, relative two surfaces that also can said dielectric base is provided with a conductive layer.
So-called conductive layer has resistance anisotropy and is meant that all there are two orthogonal directions in conductive layer, and the resistance of this conductive layer is far longer than the resistance on the another one direction on the direction therein.Said structure with the anisotropic conductive layer of resistance comprises two kinds: a kind of is that this conductive layer comprises along the conductive path of a plurality of wire of a direction extension; To be this conductive layer have by a plurality of that the anisotropic material of conduction is formed and this material aligns to another kind.With the indium oxide tin film is example, can a complete indium oxide tin film be carried out patterning, forms along the little tin indium oxide conductive path of a plurality of wire of same direction extension and space setting.For the conductive layer that this indium oxide tin film constitutes, the direction of extending along the tin indium oxide conductive path is the direction of conduction.Owing to be to be provided with at interval between the tin indium oxide conductive path, so mutually insulated between the tin indium oxide conductive path.Therefore, this indium oxide tin film can be described as and has resistance anisotropy.With the carbon nano-tube film is example, can form the little carbon nano-tube film of a plurality of wire of same direction extension in a plurality of edges and space setting through a complete carbon nano-tube film is carried out patterning, has the anisotropic carbon nano-tube film of resistance thereby form.In addition; Because CNT has extraordinary conduction anisotropy; It has extraordinary electric conductivity in the axial direction; And almost be insulator in direction perpendicular to axial direction (being the diametric(al) of CNT), therefore can select to make a CNT in the complete carbon nano-tube film to align basically, thereby the CNT of said carbon nano-tube film have good electrical conductivity on the axial direction of CNT; And relatively poor perpendicular to the electric conductivity on the CNT axial direction, and then formation has the anisotropic carbon nano-tube film of resistance.
The emphasis of touch-screen of the present invention is to realize the signal transmission of said integrated circuit and virtual key through the conductive layer of touch area, thereby can save space and the cost that lead and cabling zone need be set separately in the prior art.Therefore can know according to foregoing; If when the conductive layer that integrated circuit is electrically connected with virtual key is isotropy; Virtual key can only be provided with one and virtual key at most and be connected with the conductive layer opposite end respectively with integrated circuit; If this conductive layer is for each can be provided with a plurality of virtual keys when incorgruous, and will this a plurality of virtual keys be separately positioned on conductive layer and also be connected along the two ends of conducting direction with integrated circuit.Can know according to foregoing; Those skilled in the art are the above-mentioned conductive layer of the present invention is explained clearly the basis for each technology contents during to anisotropy on; Conductive layer can be readily appreciated that for each technology contents to the tropism time, so this instructions is attached most importance to for each technology contents when the anisotropy with conductive layer the present invention is described.
Comprise in the said touch-screen being separately positioned on two dielectric base, two conductive layers of the corresponding touch area on surface in opposite directions, below be called first conductive layer and second conductive layer.Said first conductive layer or second conductive layer can be metal film, tin indium oxide (Indium Tin Oxide, ITO) film or carbon nano-tube film.
For describing conveniently, the minimum resistance direction that defines said first conductive layer is a first direction, and the maximum resistance direction that defines first conductive layer is a second direction, and said first direction is perpendicular to second direction.The minimum resistance direction of said second conductive layer is a second direction, and the maximum resistance direction of said second conductive layer is a first direction.That is, make the minimum resistance direction of the minimum resistance direction of said first conductive layer, thereby form a capacitive touch screen perpendicular to second conductive layer.In the electronic installation of the present invention, said first conductive layer comprises that a plurality of wire conductive paths extend along first direction, like metal tape, tin indium oxide band or CNT band.Said second conductive layer can comprise that promptly a plurality of wire conductive paths extend along second direction, also can be for by a plurality of conducting films with integral body of forming of the anisotropic material of conduction.
Said integrated circuit comprises one drive circuit, a sensing circuit and a control circuit.Said control circuit electrically connects with said driving circuit and sensing circuit respectively.Said driving circuit is electrically connected with said virtual key through a driving lead.Said sensing circuit is electrically connected with said virtual key through said first conductive layer.Particularly; For realizing that sensing circuit and said virtual key electrically connect; Said sensing circuit and said first conductive layer couple along an end of first direction; Said virtual key and said first conductive layer couple along the other end of first direction, that is, said sensing circuit and virtual key couple with the two ends of said first conductive layer along conducting direction respectively.
When work; Said control circuit is controlled said driving circuit and is sent a drive signal to said virtual key; And receive the sensing signal that this virtual key transmits simultaneously, thereby judge whether to act on the touch action on this virtual key according to said sensing signal.Because said sensing circuit electrically connects through said conductive layer and the said virtual key that is arranged on the corresponding touch area of dielectric base, thereby a sensing lead need be set between virtual key and sensing circuit, has simplified the structure of said electronic installation.That is, said conductive layer can be used as the sensing lead that is connected electrically between said sensing circuit and the virtual key, is used to transmit the sensing signal of said virtual key.
Because this function element as touch-screen of said conductive layer, said first conductive layer also is said touch-screen work except being said virtual key transmission sensing signal.It is pointed out that to guaranteeing that said virtual key does not conflict when using first conductive layer with said touch-screen, must guarantee only to be chosen as said touch-screen or to be merely said virtual key work in said first conductive layer at one time.Concrete how to control that then the principle of work according to touch-screen is different and different.For example, if when said touch-screen is the individual layer capacitive touch screen, when said virtual key during in work, said touch-screen must be in off working state, and the number of said virtual key also can only be one.If said touch-screen is the multiple spot capacitive touch screen, when said virtual key in when work, the connection virtual key in the said touch-screen and the conductive layer of sensing circuit then can not the load driver signals.If said touch-screen is a resistive touch screen, when said virtual key in when work, said touch-screen must be in off working state.But combine actually can know that the touch area generally is in non-touch duty when pushing virtual key, perhaps can be designed as the work of virtual key and the work of touch area and replace automatically, so the present invention meets actual request for utilization.Certainly; The present invention also can said each in the anisotropy conductive layer, choose the conductive path with virtual key quantity respective amount; The conductive path that is electrically connected with integrated circuit as independent confession virtual key; The electrode that is provided with on the conductive path of i.e. this selection and the conductive layer is not connected, and is called special-purpose conductive path here for clear, the problem that does not exist this moment the work of work and the virtual key of touch area not carry out simultaneously.In order more to meet actual demand, can be when selecting above-mentioned special-purpose conductive path according to the low choice of location of demand that is touched in the touch-screen touch area.
Said virtual key can be arranged on the flexible PCB, and passes through the mechanical connection of the said flexible PCB and first conductive layer.The concrete structure of said virtual key is not limit, as long as can sensing user finger or the touch action of other instrumental purpose on virtual key.Normally, said virtual key is for being provided with or being formed on the Inductance and Capacitance of said flexible PCB.Said Inductance and Capacitance can comprise one the 3rd conductive layer and one the 4th conductive layer that is arranged on two relative surfaces of said flexible PCB.Said the 3rd conductive layer and the 4th conductive layer are space crossed, thereby between the 3rd conductive layer and the 4th conductive layer, form a plurality of Inductance and Capacitance Coupling nodes.When said virtual key receives a drive signal, will produce a plurality of electric capacity between said the 3rd conductive layer and the 4th conductive layer, the capacitance of said electric capacity is sensing signal.Said control circuit can act on the touch action on this virtual key by sensing through the capacitance variation of this virtual key of sensing, obtains touch position coordinates comparatively accurately.
Below be example with the multiple spot capacitive touch screen, come further explain electronic installation of the present invention in conjunction with accompanying drawing and with specific embodiment.
See also Fig. 1, the embodiment of the invention provides a kind of electronic installation 100, and this electronic installation 100 comprises a touch-screen 10, an integrated circuit 20 and a flexible PCB (Flexible Printed Circuit) 30.Said integrated circuit 20 and flexible PCB 30 are arranged on the both sides of said touch-screen 10 along a first direction.
Please consult Fig. 1 and Fig. 2 in the lump, said touch-screen 10 comprises a dielectric base 11, is arranged on a touch area 101 and the cabling zone 102 of said dielectric base 11.Said cabling zone 102 is arranged on the edge of said touch area 101.Be provided with one first conductive layer 12, one second conductive layer 13, a plurality of sensing electrode 14 and a plurality of drive electrode 15 in the said touch area 101.Said first conductive layer 12 and second conductive layer 13 are separately positioned on two relative surfaces of said dielectric base 11.Said sensing electrode 14 is arranged on the end of said first conductive layer 12 along first direction, and said drive electrode 15 is arranged on the end of said second conductive layer 13 along a second direction.Said first direction is perpendicular to said second direction.
Said dielectric base 11 is a planar structure, mainly plays a supportive role, and should have light transmission preferably.This dielectric base 11 can be by hard material or plastics such as glass, quartz, adamass, and flexible materials such as resin form.Particularly; When this dielectric base 11 is formed by a flexible material; This material can be polycarbonate (PC), polymethylmethacrylate (PMMA), polyethylene terephthalate polyester materials such as (PET); And polyethersulfone (PES), cellulose esters, benzocyclobutene (BCB), PVC (PVC), optical cement (Optical Clear Adhesive, OCA) and material such as acryl resin.In the present embodiment, the material of this dielectric base 11 is an optical cement.Be appreciated that the material that forms said dielectric base 11 is not limited to the above-mentioned material of enumerating, as long as can make dielectric base 11 play the effect of support, and tool preferably transparency get final product, all in the scope that the present invention protects.
Said first conductive layer 12 or second conductive layer 13 can be metal film, tin indium oxide (Indium Tin Oxide, ITO) film or carbon nano-tube film.
See also Fig. 3, said first conductive layer 12 comprises along a plurality of linear conductive path 121 of the extension of first direction, said a plurality of wire conductive path 121 parallel and settings at interval.Each conductive path 121 forms a reticulate texture through patterned at said first conductive layer 12, conductive path 121 mutual conduction in the said reticulate texture and be " * " font and arrange.Said conductive path 121 can be processed by any conductive material, as long as keep transparent and be linear structure.Said conductive material comprises CNT, metal, metallic compound.In the present embodiment, said conductive material is a tin indium oxide.
Said second conductive layer 13 comprises a plurality of anisotropic CNTs of good conductive that have, and these a plurality of CNTs extend along second direction basically.Said second conductive layer 13 can comprise a carbon nano-tube film; This carbon nano-tube film aligns formation basically for from ultra in-line arrangement carbon nano pipe array, pulling a plurality of CNT of having of acquisition; Said a plurality of CNT ending is connected with Van der Waals force and mutually combines, and has integrally-built carbon nano-tube film thereby form one.Because CNT has very large length-diameter ratio; And CNT has extraordinary conduction anisotropy; It has extraordinary electric conductivity in the axial direction; And almost be insulator in direction perpendicular to axial direction (being the diametric(al) of CNT), thereby the carbon nano-tube film of said carbon nano-tube film has good electrical conductivity on the direction that CNT extends, and very poor perpendicular to the electric conductivity on the CNT bearing of trend.Therefore, this carbon nano-tube film has resistance anisotropy.
Said a plurality of sensing electrode 14 is arranged on said first conductive layer 12 and is electrically connected with said a plurality of conductive paths 121 along an end of first direction; Be used for the sensing signal that said first conductive layer 12 transmits from conductive path 121 is transferred to said integrated circuit 20; At this moment, said first conductive layer 12 is monolateral driving.Said sensing electrode 14 also can also be arranged on said first conductive layer 12 along the relative two ends of first direction, and promptly the two ends of each conductive path 121 are provided with sensing electrode, and at this moment, said first conductive layer 12 is bilateral driving.
Said drive electrode 15 is arranged on the end of said second conductive layer 13 along second direction, is used for a drive signal of sending from said integrated circuit 20 is sent to said second conductive layer 13, at this moment, the 12 monolateral drivings of said first conductive layer.Said drive electrode 15 also can be arranged on the opposite end of said second conductive layer 13 along second direction, and at this moment, said second conductive layer 13 is bilateral driving.
Said touch-screen 10 is when work, and said second conductive layer 13 receives said drive signal, thereby between said second conductive layer 13 and first conductive layer 12, forms a plurality of electric capacity.In said first conductive layer 12, all be formed with electric capacity between each conductive path 121 and said second conductive layer 13.Said first conductive layer 12 sends the capacitance of said electric capacity to said integrated circuit 20 through said sensing electrode 14, and said capacitance is sensing signal.When the user touched this touch-screen 10, said integrated circuit 20 can be oriented this user's touch point through the capacitance of the electric capacity between this first conductive path 121 of sensing and said second conductive layer 13 or the change of capacitance.
Said integrated circuit 20 comprises one drive circuit 21, a sensing circuit 22 and a control circuit 23.Said control circuit 23 electrically connects with said driving circuit 21 and sensing circuit 22 respectively.Said driving circuit 21 is electrically connected with said flexible PCB 30.Said sensing circuit 22 is electrically connected with said flexible PCB 30 through said first conductive layer 12.Particularly; For realizing being electrically connected of sensing circuit 22 and said flexible PCB 30; Said sensing circuit 22 couples with the end coupling of said first conductive layer 12 along first direction; Said flexible PCB 30 couples with the other end of said first conductive layer 12 along first direction, that is, said sensing circuit and flexible PCB 30 couple with the two ends of said first conductive layer 12 along conducting direction respectively.
Please in the lump referring to Fig. 1, Fig. 4 and Fig. 5, said flexible PCB 30 comprises a flexible PCB 31, a plurality of virtual key 32, a driving signal input 33 and a plurality of sensing signal output terminal 34.Said virtual key 32, driving signal input 33 and sensing signal output terminal 34 all are arranged on the said flexible PCB 31.Said virtual key 32 is electrically connected with said driving circuit 21 signals through driving signal input 33 through said flexible PCB 31 and said touch-screen 10 mechanical connections, electrically connects with said first conductive layer 12 through said sensing signal output terminal 34.Because said driving signal input 33 and driving circuit 21 are separately positioned on the two ends of said touch-screen 10; Therefore; For realizing that said driving signal input 33 is electrically connected with driving circuit 21, a driving lead 331 can be connected between said driving signal input 33 and the driving circuit 21.This driving lead 331 is arranged on the said cabling zone 102.Each sensing signal output terminal 34 all with said first conductive layer 12 in one or more conductive paths 121 be electrically connected, thereby said sensing signal output terminal 34 can be electrically connected with said sensing circuit 22.Be appreciated that; Since between said sensing signal output terminal 34 and the sensing circuit 22 by said conductive path 121 and sensing electrode 14 connections that are connected with conductive path 121; Therefore; Need not said sensing signal output terminal 34 can and said sensing circuit 22 between a sensing lead is set again, can realize said sensing signal is transferred to sensing circuit 22 from virtual key 32.Simultaneously, owing to traditional sensing lead all need be arranged on the said cabling zone 102, and said first conductive layer 12 of virtual key 32 usefulness in the present embodiment has omitted the sensing lead that is arranged on the said cabling zone 102 in other words as the sensing lead.Therefore, the electronic installation 100 of present embodiment can reduce the area in said cabling zone 102 with respect to traditional electronic installation, helps the miniaturization of said electronic installation 100.
The material of this flexible PCB 31 can be selected from plastics or resin, and thickness is 10 microns to 70 microns, is preferably 20 microns.The shape and the size of this flexible PCB 31 are not limit, can be according to the size and the shaped design of the virtual key 32 that needs in the said electronic equipment.
Said a plurality of virtual key 32 can be a plurality of Inductance and Capacitance; Particularly; Said a plurality of virtual key 32 comprises a plurality of the 3rd conductive layers 321 and one the 4th conductive layer 322, and said a plurality of the 3rd conductive layers 321 and the 4th conductive layer 322 are arranged on two relative surfaces of said flexible PCB 31.Each virtual key 32 is all to there being one the 3rd conductive layer 321.Said a plurality of the 3rd conductive layer 321 capable assemblings form and said the 4th conductive layer 322 basic corresponding shape, and space insulation between these a plurality of the 3rd conductive layers 321.Said the 4th conductive layer 322 is electrically connected with said driving signal input 33, and each the 3rd conductive layer 321 all electrically connects with a sensing signal output terminal 34.The structure that is appreciated that said a plurality of virtual key 32 is not limited to above-mentioned situation, as long as can form a plurality of Inductance and Capacitance.For example, in order to form a plurality of Inductance and Capacitance, said a plurality of virtual keys 32 also can comprise a plurality of the 3rd conductive layers 321 and a plurality of the 4th conductive layer 322, that is, each virtual key 32 is all to having one the 3rd conductive layer 321 and one the 4th conductive layer 322.
Said the 3rd conductive layer 321 and the 4th conductive layer 322 can be through modes such as printing or plated film etchings and form, and the material of said the 3rd conductive layer 321 and the 4th conductive layer 322 is the metal with preferable electric conductivity, like gold, silver or copper.In the present embodiment, said the 3rd conductive layer 321 and the 4th conductive layer 322 are the metal wire that is printed on the said flexible PCB 31.See also Fig. 5 and Fig. 6, the metal wire mutual conduction in said the 3rd conductive layer 321 and be matrix pattern and arrange.Metal wire mutual conduction in said the 4th conductive layer 322 and be " * " font and arrange.Metal wire in said the 3rd conductive layer 321 has different directions with metal wire in the 4th conductive layer 322, thereby intersects through said flexible PCB 31 insulation union spaces, thereby forms said a plurality of capacitive coupling node.
Said driving signal input 33 is arranged on the said flexible PCB 31, and electrically connects between said driving circuit 21 and said the 4th conductive layer 322.Said driving signal input 33 is used for the drive signal that driving circuit 21 is sent is input to the 4th conductive layer 322; Thereby between said the 3rd conductive layer 321 and the 4th conductive layer 322, will produce an electric capacity, the capacitance of said electric capacity is sensing signal.Said sensing signal output terminal 34 is arranged on the said flexible PCB 31, and electrically connects between said first conductive layer 12 and said the 3rd conductive layer 321.Said sensing signal output terminal 34 is used for the sensing signal of said the 3rd conductive layer 321 is transferred to said first conductive layer 12, and finally is transferred to said sensing circuit 22 by this first conductive layer 12.Thereby said control circuit 23 can act on the touch action on this virtual key 32 through the capacitance variation sensing of the said a plurality of capacitive coupling nodes of sensing.
See also Fig. 6, be the annexation synoptic diagram of said electronic installation 100, drive electrode 15 in the said touch-screen 10 and the driving signal input 33 in the said virtual key 32 all with said integrated circuit 20 in 21 of driving circuits be connected.14 of sensing electrodes in the said touch-screen 10 electrically connect with sensing circuit 22 in the said integrated circuit 20.Because sensing signal output terminal 34 is electrically connected with said first conductive layer 12 in the said virtual key 32, therefore, said sensing signal output terminal 34 in fact also electrically connects with said sensing circuit 22.
Said electronic installation 100 is when work, and the said driving circuit 21 of said control circuit 23 controls can send drive signal for successively said drive electrode 15 and driving signal input 33 through the mode of timesharing scanning line by line.When said drive electrode 15 received this drive signal, said touch-screen 10 was worked, and the sensing signal in this first conductive layer 12 is transferred to said sensing circuit 22 through sensing electrode 14.When said driving signal input 33 receives this drive signal; Said a plurality of virtual key 32 work, and the sensing signal of these a plurality of virtual keys 32 is transferred to said sensing circuit 22 through said sensing signal output terminal 34 via said first conductive layer 12 and sensing electrode 14.Because said virtual key 32 is different with the working time of touch-screen 10; Therefore; The sensing signal of said virtual key 32 can be transferred to said sensing circuit 22 through first conductive layer 12, and does not need the extra sensing lead that is provided with to be connected between said virtual key 32 and the sensing circuit 22 again.Help simplifying the structure of said electronic installation 100, save the space of said electronic installation 100.Simultaneously, because a plurality of virtual keys 32 shared said the 4th conductive layers 322 of said electronic installation 100 can reduce the number of said driving signal input 33, and then reduce the quantity that connects the driving lead 331 between said driving circuit 21 and the virtual key 32.Can further simplify the structure of said electronic installation 100, save the space of said electronic installation 100.
Said electronic installation 100 also can further comprise a touch interface (figure does not show); Said touch interface is arranged on the side of said virtual key 32 away from said flexible PCB 30, and said touch interface is provided with pattern or sign with said virtual key 32 corresponding positions.
In addition, those skilled in the art also can do other variations in spirit of the present invention, and certainly, these all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.
Claims (16)
1. electronic installation, it comprises:
One touch-screen, said touch-screen comprise a dielectric base and be arranged on one first conductive layer on said dielectric base one surface, and said touch-screen has a touch area, and said first conductive layer is arranged on the surface of the corresponding touch area of said dielectric base;
One integrated circuit; And
At least one virtual key;
It is characterized in that said first conductive layer is connected electrically between said integrated circuit and the said at least one virtual key.
2. electronic installation as claimed in claim 1 is characterized in that, said first conductive layer has the same tropism of resistance.
3. electronic installation as claimed in claim 1; It is characterized in that; Said first conductive layer has conduction anisotropy, and this first conductive layer has minimum resistance along a first direction, and said integrated circuit and virtual key are separately positioned on the two ends of said touch-screen along first direction.
4. electronic installation as claimed in claim 3 is characterized in that, said first conductive layer comprises a plurality of conductive paths that extend along first direction.
5. like claim 2 or 3 described electronic installations; It is characterized in that; Further be provided with one second conductive layer in the said touch area, said second conductive layer and first conductive layer are arranged on two relative surfaces of said dielectric base, and said second conductive layer has the same tropism of resistance.
6. like claim 2 or 3 described electronic installations; It is characterized in that; Further be provided with one second conductive layer in the said touch area; Said second conductive layer and first conductive layer are arranged on two relative surfaces of said dielectric base, and said second conductive layer has resistance anisotropy, and this second conductive layer has minimum resistance along a second direction.
7. electronic installation as claimed in claim 6 is characterized in that, said second conductive layer comprises at least one carbon nano-tube film, and said carbon nano-tube film comprises a plurality of CNTs, axially the extending along second direction basically of this a plurality of CNTs.
8. electronic installation as claimed in claim 7 is characterized in that a plurality of CNTs join end to end through Van der Waals force in the said carbon nano-tube film, and extends along the second direction preferred orientation basically.
9. electronic installation as claimed in claim 1; It is characterized in that; Said electronic installation further comprises a driving signal input and a driving lead; Said driving lead is connected between said driving signal input and the said integrated circuit, and said driving signal input is connected between said driving lead and the said virtual key.
10. electronic installation as claimed in claim 9 is characterized in that, said electronic installation further comprises at least one sensing signal output terminal, and said at least one sensing signal output terminal is connected between said first conductive layer and said at least one virtual key.
11. electronic installation as claimed in claim 10; It is characterized in that; Said electronic installation further comprises a flexible PCB, and said at least one virtual key, driving signal input and at least one sensing signal output terminal all are arranged on the said flexible PCB.
12. electronic installation as claimed in claim 11; It is characterized in that; Said at least one virtual key comprises having anisotropic at least one the 3rd conductive layer of resistance and have anisotropic one the 4th conductive layer of resistance; Said at least one the 3rd conductive layer and one the 4th conductive layer are separately positioned on two relative surfaces of said flexible PCB; Said at least one the 3rd conductive layer is electrically connected with said at least one sensing signal output terminal, and said the 4th conductive layer is electrically connected with said driving signal input.
13. electronic installation as claimed in claim 12 is characterized in that, said at least one the 3rd conductive layer is the reticulate texture that formed by many conductor wires, and said the 4th conductive layer comprises the reticulate texture that formed by many conductor wires.
14. electronic installation as claimed in claim 11 is characterized in that, said at least one virtual key comprises that at least one the 3rd conductive layer and at least one the 4th conductive layer are arranged on two relative surfaces of said flexible PCB.
15. an electronic installation, it comprises:
One touch-screen; Said touch-screen comprises a dielectric base and is arranged on one first conductive layer on said dielectric base one surface; Said touch-screen has the touch area of sensing touch action, and said first conductive layer is arranged on the surface of the corresponding touch area of said dielectric base;
One integrated circuit, said integrated circuit are arranged on the end of said touch-screen along first direction;
One virtual key, said virtual key are arranged on the other end of said touch-screen along first direction; And
One driving lead, this driving lead are connected electrically between said integrated circuit and the virtual key, and the drive signal that this integrated circuit is sent is transferred to said virtual key;
It is characterized in that said first conductive layer is connected electrically between said integrated circuit and the virtual key, the sensing signal that this virtual key is sent is transferred to said integrated circuit.
16. electronic installation as claimed in claim 15 is characterized in that, said virtual key only is transferred to said sensing signal the other end of this touch-screen from an end of touch-screen through said first conductive layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010573849.XA CN102478993B (en) | 2010-11-26 | 2010-11-26 | Electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010573849.XA CN102478993B (en) | 2010-11-26 | 2010-11-26 | Electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478993A true CN102478993A (en) | 2012-05-30 |
| CN102478993B CN102478993B (en) | 2014-11-19 |
Family
ID=46091662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010573849.XA Active CN102478993B (en) | 2010-11-26 | 2010-11-26 | Electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478993B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929426A (en) * | 2012-07-30 | 2013-02-13 | 友达光电股份有限公司 | Touch control device |
| CN104598064A (en) * | 2013-10-31 | 2015-05-06 | 胜华科技股份有限公司 | Touch panel |
| CN106547379A (en) * | 2015-09-16 | 2017-03-29 | 苏州欧菲光科技有限公司 | Mobile terminal |
| CN108037855A (en) * | 2018-01-25 | 2018-05-15 | 上海创功通讯技术有限公司 | A kind of display panel and terminal |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261559A (en) * | 2007-03-07 | 2008-09-10 | 义隆电子股份有限公司 | Touch control panel |
| US20090008234A1 (en) * | 2007-07-03 | 2009-01-08 | William Haywood Tolbert | Input device and an electronic device comprising an input device |
| CN101458601A (en) * | 2007-12-14 | 2009-06-17 | 清华大学 | Touch screen and display device |
-
2010
- 2010-11-26 CN CN201010573849.XA patent/CN102478993B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101261559A (en) * | 2007-03-07 | 2008-09-10 | 义隆电子股份有限公司 | Touch control panel |
| US20090008234A1 (en) * | 2007-07-03 | 2009-01-08 | William Haywood Tolbert | Input device and an electronic device comprising an input device |
| CN101458601A (en) * | 2007-12-14 | 2009-06-17 | 清华大学 | Touch screen and display device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929426A (en) * | 2012-07-30 | 2013-02-13 | 友达光电股份有限公司 | Touch control device |
| CN102929426B (en) * | 2012-07-30 | 2016-01-20 | 友达光电股份有限公司 | Touch control device |
| CN104598064A (en) * | 2013-10-31 | 2015-05-06 | 胜华科技股份有限公司 | Touch panel |
| CN106547379A (en) * | 2015-09-16 | 2017-03-29 | 苏州欧菲光科技有限公司 | Mobile terminal |
| CN106547379B (en) * | 2015-09-16 | 2024-04-30 | 安徽精卓光显技术有限责任公司 | Mobile terminal |
| CN108037855A (en) * | 2018-01-25 | 2018-05-15 | 上海创功通讯技术有限公司 | A kind of display panel and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102478993B (en) | 2014-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102870073B (en) | Touch panel and method for manufacturing the same | |
| US8982085B2 (en) | Touch panel | |
| CN103793116B (en) | Contact panel | |
| US20150060120A1 (en) | Touch panel | |
| CN102478992B (en) | Touch screen | |
| WO2013056487A1 (en) | Touch array, touch sensor, touch display, and touch device | |
| KR101376887B1 (en) | Touch screen panel and touch screen apparatus | |
| JP2011210224A (en) | Touch panel | |
| EP2275910A2 (en) | Touch panel and electronic device including the same | |
| CN101625466B (en) | Touch liquid crystal display screen | |
| CN104298406A (en) | Two-dimensional touch control sensor of combined structure | |
| US9240782B2 (en) | One-dimensional capacitive touch panel with stable coupling capacitance | |
| JP2019509524A (en) | Variable array double function touch sensor, control detection system, touch module and touch display device | |
| CN102478993B (en) | Electronic device | |
| CN101620328B (en) | Touch LCD screen | |
| CN102479014B (en) | The touch apparatus of application flexibility circuit board | |
| CN211479096U (en) | Capacitive touch screen with ultra-narrow frame and terminal equipment | |
| US20140253829A1 (en) | Wiring apparatus for touch screen panel | |
| CN104731391A (en) | Touch control type keyboard | |
| TWI442296B (en) | Electrical device | |
| KR20150072950A (en) | Display apparatus and manufacturing method thereof | |
| CN104536618A (en) | Touch screen | |
| CN202887155U (en) | Touch panel | |
| CN103677368A (en) | Connected structure formed by touch panel and flexible printed circuit board | |
| US20140062915A1 (en) | Touchscreen panel and touchscreen device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518109 Guangdong, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 4, building 1, building Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Co-applicant after: Chimei Optoelectronics Co., Ltd. Address before: Miaoli County, Taiwan, China Applicant before: Chimei Optoelectronics Co., Ltd. Co-applicant before: Qunkang Technology (Shenzhen) Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: QIMEI ELECTRONIC CO LTD TO: QUNKANG TECHNOLOGY (SHENZHEN) CO., LTD. |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518109 Guangdong, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 4, building 1, building Applicant after: Qunkang Technology (Shenzhen) Co., Ltd. Applicant after: Innolux Display Group Address before: 518109 Guangdong, Shenzhen, town, Foxconn science and Technology Industrial Park E District, building 4, building 1, building Applicant before: Qunkang Technology (Shenzhen) Co., Ltd. Applicant before: Chimei Optoelectronics Co., Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |