CN206619121U

CN206619121U - A kind of capacitance type touch control screen

Info

Publication number: CN206619121U
Application number: CN201720283934.XU
Authority: CN
Inventors: 夏婉婉; 陈娴; 肖坚坚
Original assignee: Shanghai Tianma AM OLED Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2017-03-22
Filing date: 2017-03-22
Publication date: 2017-11-07
Anticipated expiration: 2027-03-22

Abstract

This application provides a kind of capacitance type touch control screen, including：Signal wire, the first touch control electrode and touch chip；The signal wire is the conductor wire of parallel distribution, and the signal wire includes the first signal wire；Multiple first touch control electrodes are distributed with each first signal wire, first touch control electrode is electrically connected with first signal wire；The capacitance formed described at least two be distributed on same first signal wire between the first touch control electrode and same reference potential is different.The application can solve the problem that existing capacitance type touch control screen due to connecing " grid " problem that mode is caused using metal bridge company, and the touch screen film layer structure that brings it is complicated the problem of, simultaneously solve self-tolerant touch screen " terrible point " problem and mutual capacitance type touch screen scanning times it is many, the problem of report point rate is low, can give the more preferable Consumer's Experience of user.

Description

A kind of capacitance type touch control screen

Technical field

The utility model is related to technical field of touch control, more particularly, to a kind of capacitance type touch control screen.

Background technology

Touch-screen (touch screen) is also known as " touch screen " or " contact panel ", is that one kind can receive the input such as contact Signal, to replace the induction type display device of the input equipments such as mechanical botton panel.Touch screen is divided into resistance-type covering and touched again Control screen, photosensitive type touch screen, capacitance type touch control screen etc..Wherein, capacitance type touch control screen (Capacity Touch Panel, CTP) It is that screen is controlled using the electric current sensing of human body, according to the capacitance variations of detected touch area, calculates touching position Put, have the advantages that sensitivity is high, easily realize multi-point touch, be increasingly becoming the head of the electronic products such as smart mobile phone, tablet personal computer Choosing.

Existing capacitance type touch control screen has self-capacitance and mutual capacitance type.Wherein, self-capacitance is the one of same signal wire Hold to signal, the other end receives signal；And Inductance and Capacitance be a signal wire to signal, another adjacent signal wire receives letter Number.In order to be accurately positioned touch location, existing capacitance plate, either self-capacitance, or mutual capacitance type, all using horizontal stroke The design intersected to signal wire and longitudinal signal line, transparent oxidation is typically used per signal line provided with multiple touch control electrodes Indium tin (indium tin oxide, ITO) as touch control electrode), in order to avoid horizontal signal wire and longitudinal signal wire phase Mutually interference, touch-control electricity adjacent on a corresponding wherein signal wire in place of horizontal signal wire is mutually overlapped with the signal wire of longitudinal direction It is attached between pole by the way of metal bridge formation.

The connected mode that metal is built bridge can mainly bring two influences：One is influence visual effect, and two be that certainly will increase tactile Control the film layer quantity of screen.

Influence visual effect of metal building bridge embodies both ways：Metal, which is built bridge, can influence the transmitance of light so that display screen Metal frame bridge location put dark, cause " grid " problem；In addition, two metal lines of crossover location can form a coupling electricity Hold, influence the definition of screen, it is impossible to give user more preferable Consumer's Experience.

All touch control electrodes are located at same film layer, and the signal wire that metal frame bridge location is put is located at another film layer, therefore metal frame The presence of bridge adds film layer quantity so that film layer structure is more complicated, prepares cost high.

For self-tolerant touch screen, the wire laying mode intersected using horizontal signal wire and longitudinal signal line is from appearance Formula touch screen produces the basic reason of " terrible point ".When there is two touch screen touch points on touch screen, X, Y-direction is able to production Raw two touch signals, but X and two touch signals of Y-direction can not uniquely determine position of two touch points on screen, But correspondence is located at four points of a rectangle apex, wherein, two points on a diagonal are touch point, in addition Two points on one diagonal are referred to as " terrible point ".Fig. 1 a are from the schematic diagram for holding screen and producing ghost point, such as Fig. 1 a in background technology It is shown：When touching 2: 101,102, two abscissa lines 2,4 on screen can detect that on two vertical coordinate lines 7,10 Two non-tactile points 103,104 that touch signal, this abscissa line and vertical coordinate line intersect to form beyond 4 points, touch point are For terrible point, touch point is more, and ghost point is more.

For mutual capacitance type touch screen, the wire laying mode intersected using horizontal signal wire and longitudinal signal line, is mutual tolerance The low basic reason of formula touch screen report point rate (the contact information number of times that each second reports).Mutual capacitance type touch screen two arrays of electrodes intersects Place will form capacitor, namely this two arrays of electrodes has respectively constituted the two poles of the earth of capacitor.When finger touches capacitance plate When, the coupling between two electrodes near touch point is have impact on, so as to change the capacitance between the two electrodes.Detection is mutual During capacitance size, horizontal electrode sends pumping signal successively, and longitudinal all electrodes receive signal simultaneously, can so obtained The capacitance size of all horizontal and vertical electrode joints, i.e., the capacitance size distribution of the two dimensional surface of whole touch screen.Root According to the capacitance change data on the two dimensional surface of touch screen, the coordinate of each touch point can be calculated.Fig. 1 b are backgrounds Schematic diagram in technology more than mutual tolerance screen scanning times, as shown in Figure 1 b, it is necessary to carry out M_{It is horizontal}×N_{It is vertical}Secondary signal scanning, just can determine that Touch point, excessive signal scanning number of times directly affects report point rate, it is impossible to give user more preferable Consumer's Experience.

To sum up, capacitance type touch control screen has technical problem to be solved as follows：

1. metal bridge company connects " grid " problem that mode is brought；

2. touch screen film layer structure is complicated, manufacturing cost is high；

3. " terrible point " problem of self-tolerant touch screen；

4. the scanning times of mutual capacitance type touch screen are more, the problem of report point rate is low.

Utility model content

In order to solve produced problem in the above prior art, the purpose of this utility model is to provide a kind of capacitive touch Control screen, to solve existing capacitance type touch control screen due to connecing " grid " problem and the touch screen that mode is caused using metal bridge company The problem of film layer structure is complicated, while solving " terrible point " problem of self-tolerant touch screen and the scanning time of mutual capacitance type touch screen Number is more, the problem of report point rate is low, can give the more preferable Consumer's Experience of user.

This application provides a kind of capacitance type touch control screen, including：Signal wire, the first touch control electrode and touch chip；It is described Signal wire is the conductor wire of parallel distribution, and the signal wire includes the first signal wire；It is distributed with each first signal wire Multiple first touch control electrodes, first touch control electrode is electrically connected with first signal wire；Same first signal The capacitance formed described at least two be distributed on line between the first touch control electrode and same reference potential is different.

Preferably, shape between first touch control electrode being distributed on same first signal wire and same reference potential Into capacitance it is different.

Preferably, the area of first touch control electrode on same first signal wire is different, and it is from big to small Or order change from small to large.

Preferably, the capacitance type touch control screen is self-capacitance touch-control, and the same reference potential is ground potential；Adjacent The area change order of the first touch control electrode on first signal wire is opposite.

Preferably, the capacitance type touch control screen is mutual capacitance type touch control, in addition to：Second touch control electrode；The signal wire Also include secondary signal line；Multiple second touch control electrodes, the second touch-control electricity are distributed on each secondary signal line Pole is electrically connected with the secondary signal line；The input that the touch chip passes through the secondary signal line is second touch-control Electrode provides pumping signal, and the output end of first signal wire provides output signal for the touch chip；Wherein, described Binary signal line is parallel with first signal wire to be distributed, and first signal wire is alternately distributed with the secondary signal line； The same reference potential is the current potential of the second touch control electrode.

Preferably, the area of the second touch control electrode is identical.

Preferably, the second touch control electrode is located at same film layer with first touch control electrode.

Preferably, the shape of the second touch control electrode is identical with the shape of first touch control electrode.

Preferably, first touch control electrode on same first signal wire and the surface of the capacitance type touch control screen The distance between difference.

Preferably, the capacitance type touch control screen includes glass-base bonded to each other, nesa coating and passivation layer, described Passivation layer is sandwich construction, and first touch control electrode is formed by the hyaline membrane conducting film, and positioned at the glass-base with On the binding face of the passivation layer and/or between the film layer of the passivation layer.

Preferably, along along the first signal wire bearing of trend, described first on same first signal wire touches The distance between surface of electrode and the passivation layer is controlled to arrange by order from big to small or from small to large.

Preferably, first signal wire includes multiple signal line groups, and each signal line group includes n subsignal Line, is 1~n by its distributing order number consecutively on the capacitance type touch control screen, and wherein n is just whole more than or equal to 2 Number；

M touch control electrode group is distributed with each subsignal line, is 1~m by its number consecutively, wherein m for more than Or the positive integer equal to 2, each touch control electrode group includes n first touch control electrodes, and each touch control electrode The capacitance all same formed between first touch control electrode and same reference potential in group, the different touch control electrode groups First touch control electrode and same reference potential between the capacitance that is formed it is different；

Along the subsignal line bearing of trend, first touch control electrode on the subsignal line has its corresponding sequence Column position；There is the corresponding touch-control of the identical sequence location in the same signal line group, on each subsignal line The numbering of electrode group is arranged in order by the order of the numbering of its corresponding subsignal line to be formed touch location and judges sequence；Together Each touch location in signal line group described in one judges that sequence is differed.

Preferably, first touch control electrode be shaped as rhombus, circle, ellipse, square, triangle, hexagon or Octagon.

Preferably, the capacitance type touch control screen includes glass substrate, nesa coating and the passivation layer fitted successively, its In, first touch control electrode is formed by the nesa coating positioned at same film layer.

Compared with prior art, capacitance type touch control screen described herein, with advantages below：

(1) due to the parallel distribution of signal wire in the application, it is to avoid signal wire cross arrangement and use metal to build bridge and Caused by caused " grid " problem and metal bridge formation the problem of coupled capacitor so that the definition of screen is improved.

(2) because the capacitance formed between each touch control electrode on same signal wire and same reference potential is different, It ensure that the signal processing results of each touch point are uniquely determined, it is to avoid " terrible point " problem of self-tolerant touch screen.

(3) due to the parallel distribution of signal wire in the application, without connecing adjacent touch control electrode, institute using metal bridge company There are touch control electrode and signal wire to be located at same film layer, therefore, simplify touch screen film layer structure, advantageously reduce adding for touch screen Work cost.

(4) it is alternately distributed because the first signal wire is parallel with secondary signal line, either self-tolerant touch screen or mutual tolerance Formula touch screen, can reduce scanning times, especially mutual capacitance type touch screen, and scanning times are greatly decreased, and effectively increase report Point rate, gives user more preferable Consumer's Experience.

Certainly, implementing the present processes does not need necessarily while reaching all the above technique effect.

Brief description of the drawings

Accompanying drawing described herein is used for providing further understanding of the present application, constitutes the part of the application, this Shen Schematic description and description please is used to explain the application, does not constitute the improper restriction to the application.In the accompanying drawings：

Fig. 1 a are from the schematic diagram for holding screen and producing ghost point in background technology；

Fig. 1 b are the schematic diagrams more than mutual tolerance screen scanning times in background technology；

Fig. 2 is the structural representation of capacitance type touch control screen in the application；

Fig. 3 is a kind of film layer structure schematic diagram of the touch screen in the application；

Fig. 4 is a kind of touch control electrode distribution schematic top plan view of self-tolerant touch screen in the application；

Fig. 5 is a kind of touch control electrode distribution schematic top plan view of mutual capacitance type touch screen in the application；

Fig. 6 a are a kind of another film layer structure schematic diagrames of self-tolerant touch screen in the application；

Fig. 6 b are a kind of film layer structure schematic diagrames of mutual capacitance type touch screen in the application；

Fig. 7 is the touch control electrode distribution schematic top plan view of another self-tolerant touch screen in the application；

Fig. 8 is the touch control electrode distribution schematic top plan view of another mutual capacitance type touch screen in the application；

Fig. 9 is the touch control electrode distribution schematic top plan view of another self-tolerant touch screen in the application；

Figure 10 is the structural representation of the detection chip of the touch screen in the application；

Figure 11 is that the determination of the touch screen in the application touches the workflow diagram in site；

Figure 12 is that the determination of the touch screen in the application touches the schematic diagram in site.

Embodiment

Some vocabulary have such as been used to censure specific components among specification and claim.Those skilled in the art should It is understood that hardware manufacturer may call same component with different nouns.This specification and claims are not with name The difference of title is used as the mode for distinguishing component, but is used as the criterion of differentiation with the difference of component functionally.Such as logical The "comprising" of piece specification and claim mentioned in is an open language, therefore should be construed to " include but do not limit In "." substantially " refer in receivable error range, those skilled in the art can solve described in the range of certain error Technical problem, basically reaches the technique effect.In addition, " coupling " one word is herein comprising any direct and indirect electric property coupling Means.Therefore, if a first device is coupled to a second device described in text, representing the first device can directly electrical coupling The second device is connected to, or the second device is electrically coupled to indirectly by other devices or coupling means.Specification Subsequent descriptions for implement the application better embodiment, so it is described description be for the purpose of the rule for illustrating the application, It is not limited to scope of the present application.The protection domain of the application is worked as to be defined depending on the appended claims person of defining.

It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase Mutually combination.Describe the application in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Fig. 2 is the structural representation of capacitance type touch control screen in the application.Fig. 2 is referred to, capacitance type touch control screen is divided into display Area 201 and non-display area 202；Non-display area 202 is located at the periphery of viewing area 201；Viewing area 201 includes a plurality of parallel distribution Touch chip 204 is provided with signal wire 203, non-display area 202；Signal wire 203 is electrically connected with touch chip 204.

Capacitance type touch control screen in the present embodiment, including：Signal wire, the first touch control electrode and touch chip；Signal wire is The conductor wire of parallel distribution, signal wire includes the first signal wire；Multiple first touch control electrodes are distributed with each first signal wire, First touch control electrode is electrically connected with the first signal wire；At least two first touch control electrodes that are distributed on same first signal wire with it is same The capacitance formed between one reference potential is different.

It should be noted that in some optional embodiments, the first touch-control electricity being distributed on same first signal wire The capacitance formed between pole and same reference potential is different.

The capacitance type touch control screen that the present embodiment is provided is the first touch-control on self-capacitance touch screen, same first signal wire The area of electrode is different, and it changes according to order from big to small or from small to large.

Same reference potential in the present embodiment is ground potential；The face of the first touch control electrode on the first adjacent signal wire Product change order is opposite.

Fig. 4 is a kind of touch control electrode distribution schematic top plan view of self-tolerant touch screen in the application, refers to Fig. 4, this Capacitance type touch control screen in embodiment, the first signal wire includes parallel and alternatively distributed of first subsignal line 401 and second Signal wire 403.

The first different sub- touch control electrode 402 of size is dispersed with first subsignal line 401.First sub- touch control electrode The 402 order arrangement in signal transmission direction (from left to right) by area from big to small, certainly, the first sub- touch control electrode 402 It can also arrange, be not specifically limited here by the order of area from small to large in signal transmission direction (from left to right).

The second different sub- touch control electrode 404 of size, the second sub- touch control electrode are dispersed with second subsignal line 403 404 put in order is opposite with putting in order for the first sub- touch control electrode 402.

Wherein, multiple touch control electrodes are distributed with every signal line, the touch control electrode electricity being distributed per signal line and thereon Connection.Specifically, connected between the adjacent touch electrode being distributed in every signal line by signal wire.Certainly, signal wire may be used also To be that the connection with touch control electrode is realized by way of embedded touch control electrode.Due to the touch control electrode in same signal line Area is different, so the capacitance formed between the touch control electrode and same reference potential on same signal wire is different.This implementation In example, the same reference potential refers to ground potential.

Second sub- touch control electrode puts in order on the contrary, being conducive to improving the distribution of touch control electrode with the first sub- touch control electrode Density and the uniformity, are also beneficial to improve the determination efficiency of touch point position.

Preferably, the first touch control electrode is the first touch control electrode in transparent tin indium oxide (ITO) electrode, the present embodiment Be shaped as rhombus, circular, oval, square, triangle, hexagon or octagon are can also be certainly, does not do specific here Limit.

Due to the parallel distribution of signal wire in the present embodiment, it is to avoid signal wire cross arrangement and built bridge and drawn using metal Caused by " grid " problem and the metal bridge formation risen the problem of coupled capacitor so that the definition of screen is improved；Simultaneously as same The capacitance formed between each touch control electrode and same reference potential on one signal wire is different, ensure that each touch point Signal processing results uniquely determine, it is to avoid " terrible point " problem of self-tolerant touch screen.Therefore, either vision, tactile, The capacitance type touch control screen that the present embodiment is provided can give user more preferable Consumer's Experience.

Fig. 3 is a kind of film layer structure schematic diagram of the touch screen in the application, refers to Fig. 3, and touch screen 302 is located at film The top of transistor base 301, the top of touch screen 302 is polarizing layer 303, adhesive layer 304 and cover plate 305 successively.

Wherein, touch screen 302 includes the glass substrate 3021, nesa coating 3022 and passivation fitted successively from the bottom to top Layer 3023.Wherein, touch control electrode is formed by the nesa coating 3022 positioned at same film layer.

Wherein, the thickness of touch screen 302 is 0.1-1mm.Preferably, the thickness of touch screen 302 is 0.5mm.

Touch screen in the present embodiment is due to the parallel distribution of signal wire, it is not necessary to the connected mode built bridge using metal, institute There are touch control electrode and signal wire to be located at same film layer, therefore film layer is less, it is simple in construction, advantageously reduce being processed into for touch screen This.

The present embodiment is the identification that touch point is realized by touch chip, and the structure of touch chip is as shown in Figure 10, Figure 10 is the structural representation of the detection chip of the touch screen in the application.Touch chip includes detection unit 1001, relatively list Member 1002 and processing unit 1003, comparing unit 1002 are electrically connected with detection unit 1001 and processing unit 1003 respectively.

Touch chip is scanned to each signal wire in real time.The input of signal wire periodically inputs pulse signal, letter The output end of number line can correspondingly periodicity output pulse signal

In the present embodiment, because the area of the touch control electrode on same signal wire is different, therefore each touch control electrode is touched The waveform of the pulse signal of output is also different.Fig. 4 is referred to, the oscillogram on right side is corresponded on the signal wire of the 6th row from left to right respectively First touch control electrode and the from left to right output signal of second touch control electrode, the area of first touch control electrode is than from left to right the from left to right The area of two touch control electrodes is small, therefore, and the peak value for touching the pulse signal of first touch control electrode output from left to right is less than touch The peak value of second touch control electrode from left to right.

When finger touches some touch control electrode, due to human body electric field, a coupling is formed between finger and the touch control electrode Electric capacity is closed, the presence of this coupled capacitor causes the electric capacity between touch control electrode and same reference potential (namely ground potential) to become Greatly.Accordingly, with respect to no touch situation, in the case of having touch, the cycle of oscillation of the touch control electrode touched is elongated, is touched Touch control electrode where relaxation time of signal for being exported of signal wire it is also elongated therewith.

Figure 11 is that the determination of the touch screen in the application touches the workflow diagram in site, is said with reference to Figure 10 and Figure 11 It is bright：

Step 1101：Finger touches touch control electrode, the relaxation of signal wire where detection unit 1001 detects the touch control electrode Relaxation time t is simultaneously passed to comparing unit 1002 by Henan time t；

Step 1102：Comparing unit 1002 is according to formulaCalculate the output current potential of the signal wire Vc is simultaneously passed to processing unit 1003 by Vc；

Specifically, between current potential Vc and relaxation time t as shown in figure 12, Figure 12 is the touch screen in the application to relation It is determined that touching the schematic diagram in site, wherein abscissa t is the relaxation time, and ordinate Vout is output current potential, and Vref is benchmark electricity Vref refers to the periodically pulsing voltage of input in position, the present embodiment；Wherein, t₀Corresponding is the situation of no touch, t₁、t₂、 t₃The situation for touching difference is corresponded to respectively.

Step 1103：Processing unit 1003, by interpolation calculation, calculates this and touched according to the output current potential Vc of the signal wire Control the abscissa of electrode.

Illustrate the workflow of the position identification to touch point with specific embodiment below：Touched when finger is touched in Fig. 4 When controlling electrode 405, because touch control electrode 405 is located in the 5th signal line, detection unit 1001 is detected in the 5th signal line Relaxation time, and relaxation time t is passed into comparing unit 1002；Comparing unit 1002 is according to formulaThe output current potential Vc of the 5th signal line is calculated, and Vc is passed into processing unit 1003；Processing is single Member is 1003 by interpolation calculation, and the abscissa for calculating the position of touch control electrode 405 is to be located at the along signal transmission direction Three touch control electrodes, and then show that touch control electrode 405 is the 3rd touch-control electricity along signal transmission direction on Article 5 signal wire Pole.

Due to the parallel distribution of signal wire, (M bars transverse direction signal wire, N bars are longitudinally believed with signal wire cross-distribution in the prior art Number line) compare, in the case of the quantity constant (M bars) of horizontal signal wire, the present embodiment need to only be scanned M times in scanning, And signal wire cross-distribution mode then needs scanning M+N times in the prior art, it is seen then that the capacitance type touch control screen that the present embodiment is provided Scanning times are advantageously reduced, and then improve the speed of response of touch screen.

Fig. 2 is the structural representation of capacitance type touch control screen in the application, refers to Fig. 2, and capacitance type touch control screen is divided into display Area 201 and non-display area 202；Non-display area 202 is located at the periphery of viewing area 201；Viewing area 201 includes a plurality of parallel distribution Touch chip 204 is provided with signal wire 203, non-display area 202；Signal wire 203 is electrically connected with touch chip 204.

Fig. 5 is a kind of touch control electrode distribution schematic top plan view of mutual capacitance type touch screen in the application, refers to Fig. 5, its Including：Signal wire, the first touch control electrode 502 and touch chip；Signal wire is the conductor wire of parallel distribution, and signal wire includes first Signal wire 501；Multiple first touch control electrodes 502, the first touch control electrode 502 and first are distributed with each first signal wire 501 Signal wire 501 is electrically connected；At least two first touch control electrodes 502 being distributed on same first signal wire 501 are with same with reference to electricity The capacitance formed between position is different.

It should be noted that in some optional embodiments, the first touch-control being distributed on same first signal wire 501 The capacitance formed between electrode 502 and same reference potential is different.

Wherein, signal wire also includes being distributed multiple second touch-control electricity on secondary signal line 503, each secondary signal line 503 Pole 504, second touch control electrode 504 is electrically connected with secondary signal line 503.The input that touch chip passes through secondary signal line 503 Pumping signal is provided for second touch control electrode 504, the output end of the first signal wire 501 provides output signal for touch chip；Its In, secondary signal line 503 replaces with the parallel distribution of the first signal wire 501, and the first signal wire 501 with secondary signal line 503 Distribution；In the present embodiment, same reference potential is the current potential of second touch control electrode 504.

Wherein, multiple touch control electrodes are distributed with every signal line, the touch control electrode electricity being distributed per signal line and thereon Connection.Specifically, connected between the adjacent touch electrode being distributed in every signal line by signal wire.Certainly, signal wire may be used also To be that the connection with touch control electrode is realized by way of embedded touch control electrode.

It should be noted that in some optional embodiments, as shown in figure 5, being dispersed with face on the first signal wire 501 Product the first touch control electrode 502 of different sizes, the first touch control electrode 502 in signal transmission direction (from left to right) by area from It is small to be arranged to big order, certain first touch control electrode 502 in signal transmission direction (from left to right) can also by area by Small order arrangement is arrived greatly, is not specifically limited here.

Size identical second touch control electrode 504 is dispersed with secondary signal line 503.Due to the first signal wire 501 The area of first touch control electrode 502 of upper distribution is different, therefore between same reference potential (current potential of second touch control electrode) The capacitance of formation is different.

Preferably, the touch control electrode 502 of second touch control electrode 504 and first is located at same film layer.

Preferably, the shape of second touch control electrode 504 is identical with the shape of the first touch control electrode 502.

Because the first touch control electrode is identical with the shape of second touch control electrode, close arrangement can be formed, is conducive to improving and touches Touch position judgment precision.

Preferably, the first touch control electrode 502 and second touch control electrode 504 are transparent tin indium oxide (ITO) electrode, this reality That applies the first touch control electrode 502 in example and second touch control electrode 504 is shaped as rhombus, can also be certainly circular, ellipse, Square, triangle, hexagon or octagon, are not specifically limited here.

Due to the distribution parallel with secondary signal line of the first signal wire in the present embodiment, it is to avoid signal wire cross arrangement and Using metal build bridge caused by " grid " problem and metal build bridge caused by coupled capacitor the problem of so that the definition of screen Improve.Therefore, the capacitance type touch control screen that the present embodiment is provided can give user more preferable visual experience.

As shown in figure 3, the present embodiment also provides a kind of film layer structure of touch screen, touch screen 302 is located at film crystal The top of pipe substrate 301, the top of touch screen 302 is polarizing layer 303, adhesive layer 304 and cover plate 305 successively.

Wherein, touch screen 302 includes the glass substrate 3021, nesa coating 3022 and passivation fitted successively from the bottom to top Layer 3023.Wherein, touch control electrode (including the first touch control electrode and second touch control electrode) is by the electrically conducting transparent positioned at same film layer Film 3022 is formed.

Touch screen in the present embodiment is due to signal wire parallel arrangement, it is not necessary to the connected mode built bridge using metal, institute There are touch control electrode and signal wire to be located at same film layer, therefore film layer is less, it is simple in construction, advantageously reduce being processed into for touch screen This.

The present embodiment is the identification that touch point is realized by touch chip, and the structure of touch chip is as shown in Figure 10： Touch chip includes detection unit 1001, comparing unit 1002 and processing unit 1003, and comparing unit 1002 is single with detection respectively Member 1001 and processing unit 1003 are electrically connected.

Touch chip is scanned to each signal wire in real time.The input of signal wire periodically inputs pulse signal, letter The output end of number line can correspondingly periodicity output pulse signal.

In the present embodiment, because the area of the touch control electrode on same first signal wire is different, therefore each touch-control is touched The waveform of the pulse signal of electrode output is also different.Refer to Fig. 5, the oscillogram on right side correspond to respectively the signal wire of the 2nd row ( With regard to the 1st the first signal wire of row, the first signal wire is output line) on first touch control electrode and from left to right second touch control electrode from left to right Output signal, the area of first touch control electrode is smaller than the area of second touch control electrode from left to right from left to right, therefore, touch from left to right The peak value of the pulse signal of first touch control electrode output is less than the peak value of touch-control second touch control electrode from left to right.

When finger touches some touch control electrode, due to human body electric field, a coupling is formed between finger and the touch control electrode Electric capacity is closed, the presence of this coupled capacitor causes touch control electrode and same reference potential (the namely current potential of second touch control electrode) Between electric capacity become big.Accordingly, with respect to no touch situation, in the case of having touch, the vibration week of the touch control electrode touched Phase is elongated, and the relaxation time for the signal that the signal wire where the touch control electrode touched is exported is also elongated therewith..

Specifically, between current potential Vc and relaxation time t as shown in figure 12, wherein abscissa t is the relaxation time to relation, is indulged Coordinate Vout is output current potential, and Vref is the periodically pulsing voltage that Vref refers to input in reference potential, the present embodiment；Its In, t₀Corresponding is the situation of no touch, t₁、t₂、t₃The situation for touching difference is corresponded to respectively.

Illustrate the workflow of the position identification to touch point with specific embodiment below：Touched when finger is touched in Fig. 5 When controlling electrode 505, because touch control electrode 505 is located on the 3rd article of the first signal wire, comparing unit 1001 detects the 3rd article first Relaxation time on signal wire is changed, and relaxation time t is passed into comparing unit 1002；The basis of comparing unit 1002 FormulaThe output current potential Vc of the 3rd article of the first signal wire is calculated, and Vc is passed into processing unit 1003；Processing unit 1003 is by interpolation calculation, and the abscissa for calculating the position of touch control electrode 505 is to be located to pass along signal 4th touch control electrode in defeated direction, and then show that touch control electrode 505 is along signal transmission direction on the 3rd article of the first signal wire 4th touch control electrode.

It is alternately distributed, believes with input signal cable in the prior art with output because the first signal wire is parallel with secondary signal line Number line cross-distribution (M bar input signal cables, N bars output signal line) is compared, input signal cable (namely secondary signal line) number In the case of measuring constant (M bars), the present embodiment only needs to scanning M times, and signal wire cross-distribution mode is then needed in the prior art Scan M × n times, it is seen that the capacitance type touch control screen that the present embodiment is provided is conducive to that scanning times are greatly reduced, and then improves The speed of response of touch screen.

The present embodiment provides a kind of capacitance type touch control screen, including：Signal wire, the first touch control electrode and touch chip；Signal Line is the conductor wire of parallel distribution, and signal wire includes the first signal wire；Multiple first touch-controls are distributed with each first signal wire Electrode, the first touch control electrode is electrically connected with the first signal wire；At least two first touch-controls electricity being distributed on same first signal wire The capacitance formed between pole and same reference potential is different.

It should be noted that in some optional embodiments, multiple first touch-controls electricity on same first signal wire The distance between pole and the surface of capacitance type touch control screen difference.

Fig. 6 a are a kind of another film layer structure schematic diagrames of self-tolerant touch screen in the application.Referring to Fig. 6 a, this reality Example is applied there is provided a kind of film layer structure of touch screen：Touch screen 602 is located at the top of thin film transistor base plate 601, touch screen 602 Top be polarizing layer 603, adhesive layer 604 and cover plate 605 successively.

Touch screen 602 includes glass-base 6021 and passivation layer 6023 bonded to each other, and passivation layer 6023 is sandwich construction, First touch control electrode 6022 is formed by hyaline membrane conducting film, and on the binding face positioned at glass-base 6021 with passivation layer 6023 And/or between the film layer of passivation layer.

Preferably, touch control electrode is transparent tin indium oxide (ITO) electrode, and touch control electrode is shaped as rhombus, certainly also It can be circular, oval, square, triangle, hexagon or octagon, be not specifically limited here.

Wherein, the thickness of touch screen 302 is 0.5-1.5mm.Preferably, the thickness of touch screen 602 is 0.8mm.

Fig. 7 is the touch control electrode distribution schematic top plan view of another self-tolerant touch screen in the application, and shown in Fig. 6 a Touch electrode structure is corresponding, please with further reference to Fig. 7, the capacitance type touch control screen in the present embodiment, including：The of parallel distribution One signal wire, wherein, the first signal wire includes the first subsignal line 701 and the second subsignal line 703, the first subsignal line 701 It is alternately distributed with the second subsignal line 703.

The sub- touch control electrode 702 of area identical first is dispersed with first subsignal line 701；On second subsignal line 703 It is dispersed with the sub- touch control electrode 704 of area identical second.

Along along the bearing of trend of the first subsignal line 701, the first sub- touch control electrode on same first subsignal line 701 702 is suitable by from big to small with the distance between the surface (equivalent to the surface of passivation layer in the present embodiment) of capacitance type touch control screen Sequence is arranged；Certainly, on the bearing of trend along the first subsignal line 701, the first sub- touch-control on same first subsignal line 701 The distance between surface of electrode 702 and passivation layer can also be arranged by order from small to large.

Because the touch control electrode on same signal wire is different from the distance of passivation layer surface, therefore, on same signal wire Touch control electrode is different relative to the electric capacity of same reference potential (namely ground potential).

Along along the bearing of trend of the second subsignal line 703, between the second sub- touch control electrode 704 and the surface of passivation layer away from From according to the order arrangement identical or opposite with the first sub- touch control electrode 701.

In the present embodiment, because the touch control electrode on same signal wire is different from the distance of passivation layer surface, therefore each The waveform of the pulse signal of touch control electrode output is also different.Fig. 6 a and 7 are referred to, the oscillogram on right side corresponds to the 1st row respectively First touch control electrode and the from left to right output signal of second touch control electrode from left to right on signal wire, from left to right first touch control electrode with The distance of passivation layer surface is bigger (as shown in Figure 6 a) than the distance of second touch control electrode and passivation layer surface from left to right, therefore, touches The peak value for touching the pulse signal of first touch control electrode output from left to right is less than the peak value of touch-control second touch control electrode from left to right.

When finger touches some touch control electrode, due to human body electric field, a coupling is formed between finger and the touch control electrode Electric capacity is closed, the presence of this coupled capacitor causes touch control electrode and same reference potential, the electric capacity between (namely ground potential) Become big.Accordingly, with respect to no touch situation, in the case of having touch, the cycle of oscillation of the touch control electrode touched is elongated, is touched The relaxation time for the signal that signal wire where the touch control electrode touched is exported is also elongated therewith.

The present embodiment provides a kind of capacitance type touch control screen, including：Signal wire, the first touch control electrode 802 and touch chip；Letter Number line is the conductor wire of parallel distribution, and signal wire includes the first signal wire 801；It is distributed with each first signal wire 801 multiple First touch control electrode 802, the first touch control electrode 802 is electrically connected with the first signal wire 801；It is distributed on same first signal wire 801 At least two first touch control electrodes 802 and same reference potential between the capacitance that is formed it is different.

The distance between surface of the first touch control electrode 802 and capacitance type touch control screen on same first signal wire 801 is no Together.

Fig. 8 is the touch control electrode distribution schematic top plan view of another mutual capacitance type touch screen in the application, corresponding diagram 6b institutes The film layer structure of the touch screen shown.The mutual capacitance type touch control in Fig. 8, the present embodiment is referred to, including：It is parallel and alternatively distributed First signal wire 801 and secondary signal line 803；The first touch control electrode of area identical 802 is dispersed with first signal wire 801； Area identical second touch control electrode 804 is dispersed with secondary signal line 803.

Along along the bearing of trend of the first signal wire 801, the first touch control electrode 802 and electricity on same first signal wire 801 The distance between appearance formula touch-control screen surfaces are by order arrangement from small to large；Certainly, along the bearing of trend of the first signal wire 801 On, the distance between first touch control electrode 802 on same first signal wire 801 and capacitance touching control screen surfaces can also by from Small order arrangement is arrived greatly.

Second touch control electrode 804 on secondary signal line 803 is identical with the distance of capacitance type touch control screen.

Because the first touch control electrode 802 on the first signal wire 801 is different from the distance of capacitance touching control screen surfaces, institute With, relative to same reference potential, multiple first touch control electrodes 802 on the first signal wire 801 and same reference potential (i.e. the The current potential of two touch control electrodes 804) between capacitance it is different.

Fig. 6 b are a kind of film layer structure schematic diagrames of mutual capacitance type touch screen in the application.Refer to Fig. 6 b, touch screen 602 Positioned at the top of thin film transistor base plate 601, the top of touch screen 602 is polarizing layer 603, adhesive layer 604 and cover plate successively 605。

Second touch control electrode 6024 is located at the lower section of the first touch control electrode 6022, and second touch control electrode 6024 is apart from passivation The distance on 6023 surface of layer is identical.Therefore, the first touch control electrode on same signal wire is relative between second touch control electrode Distance is different, i.e., the first touch control electrode on same signal wire is relative to the electricity between second touch control electrode (same reference potential) Capacitance is different.

In the present embodiment, due to the touch control electrode and surface (the present embodiment of capacitance touching control on same first signal wire In equivalent to passivation layer surface) distance it is different, touch control electrode on same first signal wire is relative to same reference potential (the The current potential of two touch control electrodes) electric capacity it is different, therefore the waveform of the pulse signal of each touch control electrode output is also different.Refer to Oscillogram on the right side of Fig. 6 b and 8, Fig. 8 corresponds to signal wire 801 (namely the 1st the first signal wire of row, the first letter of the 2nd row respectively Number line is output line) on first touch control electrode and the from left to right output signal of second touch control electrode from left to right, first is touched from left to right The distance for controlling electrode and passivation layer surface is bigger (as shown in Figure 6 b) than the distance of second touch control electrode and passivation layer surface from left to right, From left to right the distance of first touch control electrode and second touch control electrode than second touch control electrode from left to right and second touch control electrode away from From small, therefore, the peak value for touching the pulse signal of first touch control electrode output from left to right is more than touch-control second touch-control electricity from left to right The peak value of pole.

When finger touches some touch control electrode, due to human body electric field, a coupling is formed between finger and the touch control electrode Electric capacity is closed, the presence of this coupled capacitor causes touch control electrode and same reference potential (the namely current potential of second touch control electrode) Between electric capacity become big.Accordingly, with respect to no touch situation, in the case of having touch, the vibration week of the touch control electrode touched Phase is elongated, and the relaxation time for the signal that the signal wire where the touch control electrode touched is exported is also elongated therewith.

It is alternately distributed, believes with input signal cable in the prior art with output because the first signal wire is parallel with secondary signal line Number line cross-distribution (M bar input signal cables, N bars output signal line) is compared, input signal cable (namely secondary signal line) number In the case that amount (M bars) is constant, the present embodiment only needs to scanning M times, and signal wire cross-distribution mode is then needed in the prior art Scan M × n times, it is seen that the capacitance type touch control screen that the present embodiment is provided is conducive to that scanning times are greatly reduced, and then improves The speed of response of touch screen.

A kind of capacitance type touch control screen is present embodiments provided, including：Signal wire, the first touch control electrode and touch chip；Letter Number line is the conductor wire of parallel distribution, and signal wire includes the first signal wire；Multiple first are distributed with each first signal wire to touch Electrode is controlled, the first touch control electrode is electrically connected with the first signal wire；At least two first touch-controls being distributed on same first signal wire The capacitance formed between electrode and same reference potential is different.

First signal wire includes multiple signal line groups, and each signal line group includes n sub- signal wires, by it in capacitive touch Distributing order number consecutively on control screen is 1~n, and wherein n is the positive integer more than or equal to 2；

M touch control electrode group is distributed with each subsignal line, is 1~m by its number consecutively, wherein m is to be more than or wait In 2 positive integer, each touch control electrode group includes the first touch-control electricity in n the first touch control electrodes, and each touch control electrode group The capacitance all same formed between pole and same reference potential, the first touch control electrode of different touch control electrode groups and same reference The capacitance formed between current potential is different；

Along subsignal line bearing of trend, the first touch control electrode on subsignal line has its corresponding sequence location；It is same In signal line group, the numbering with the corresponding touch control electrode group of identical sequence location presses its corresponding subsignal on each subsignal line The order of the numbering of line, which is arranged in order, to be formed touch location and judges sequence；Each touch location in same signal line group judges sequence Differ.

The present embodiment is self-tolerant touch screen, with n=2, exemplified by m=4, i.e., each signal line group includes two subsignals Include 4 touch control electrode groups on line, each subsignal line.Fig. 9 is the touch-control electricity of another self-tolerant touch screen in the application Pole is distributed schematic top plan view, as shown in figure 9, the parallel distribution of signal wire, signal wire includes multiple signal line groups, every group of signal wire bag Include and be dispersed with four on two sub- signal wires, respectively the first subsignal line 901 and secondary signal line 903, the first subsignal line 901 Individual touch control electrode group, every group (such as, indicates alphabetical A two the first sub- touch control electrodes including two the first sub- touch control electrodes 902 902 form a touch control electrode group, and the signal wire is provided with four touch control electrode groups), the face of every group of first sub- touch control electrode 902 Product is identical；Four touch control electrode groups are dispersed with second subsignal line 903, each touch control electrode group includes two the second sub- touch-controls Electrode 904 (such as, is indicated and set on alphabetical D two second one touch control electrode groups of the sub- formation of touch control electrode 904, the signal wire Have four touch control electrode groups), the area of every group of second sub- touch control electrode 904 is identical.Along signal transmission direction, the first subsignal The first sub- touch control electrode 902 on line 901 has its corresponding sequence location；For example, in Fig. 9, in same signal line group, first Eight the first corresponding sequence locations of sub- touch control electrode 902 on subsignal line 901 are followed successively by 1~8 from left to right；Second son letter Eight the second corresponding sequence locations of sub- touch control electrode 904 on number line 903 are also ordered as 1~8 successively from left to right.

In same signal line group, there is identical sequence location pair on the first subsignal line 901 and the second subsignal line 903 The numbering for the touch control electrode group answered is arranged in order by the order of the numbering of its corresponding subsignal line to be formed touch location and judges sequence Row；For example, the first of numbering 1 sub- touch control electrode 902 is A on the first subsignal line 901 in Fig. 9, with its another mark with group Numbering for A the first sub- touch control electrode 902 is 5；There is second subsignal line 903 identical sequence location to be that numbering is 1 and 5 institutes The mark of corresponding second sub- touch control electrode 904 is and B that therefore, the sequence location on the first subsignal line 901 is corresponding to 1 Touch control electrode group (be labeled as A) and the sequence location on the second subsignal line 903 for 1 touch control electrode group (being labeled as D) Form touch location and judge sequence.Due to formed with the first sub- touch control electrode 902 of group with A on the first subsignal line 901 Touch location judges that the mark of the second sub- touch control electrode 904 of sequence is that therefore, the touch location in same signal line group is sentenced Disconnected sequence is uniquely determined.

The capacitance formed between first touch control electrode of different touch control electrode groups and same reference potential is different, this implementation Same reference potential in example refers to ground potential.

Preferably, touch control electrode is tin indium oxide (ITO) electrode block, and touch control electrode is shaped as rhombus, certainly can be with It is circular, oval, square, triangle, hexagon or octagon, is not specifically limited here.

Due to the parallel distribution of signal wire in the present embodiment, it is to avoid signal wire cross arrangement and built bridge and drawn using metal Caused by " grid " problem and the metal bridge formation risen the problem of coupled capacitor so that the definition of screen is improved.

Simultaneously as the first signal line group includes the output on multiple subsignal lines, the subsignal line of same signal line group Signal be combined with each other, and ensure that the signal processing results of each touch point are uniquely determined, it is to avoid self-tolerant touch screen " terrible point " problem.

The present embodiment is applied to the touch screen of large-size, by the way of signal wire and touch control electrode are grouped respectively, together Multiple touch control electrodes with identical capacitance values are set on one signal wire, so, for a capacitance is interval, same letter Capacitance difference on number line between the touch control electrode of the different capacitances of correspondence is larger, is conducive to accurately judging touch location.

Therefore, either vision, tactile, the capacitance type touch control screen that the present embodiment is provided can preferably be used to user Experience at family.

Wherein, touch screen 302 includes the glass substrate 3021, nesa coating 3022 and passivation fitted successively from the bottom to top Layer 3023.Wherein, touch control electrode is formed by the nesa coating 322 positioned at same film layer.

The thickness of touch screen 302 is 0.1-1mm

Preferably, the thickness of touch screen 302 is 0.5mm.

Each touch location in the present embodiment in same signal line group judges that sequence is differed, therefore each touch location Judge the corresponding touch control electrode of sequence (in same signal line group, there is the touch control electrode of identical sequence location on each subsignal line) The combination (two pulse signals in Fig. 9 in same dotted line frame are the combinations of a pulse signal) of the pulse signal of output is not yet Together.Refer to Fig. 9, the oscillogram on right side corresponds on the signal wire of the 1st row first touch control electrode from left to right and from left to right the 5th respectively First touch control electrode and from left to right the 5th touch control electrode from left to right in the output signal of individual touch control electrode, and the 2nd row signal line Output signal.Due to first touch control electrode and from left to right the area phase of the 5th touch control electrode from left to right on the signal wire of the 1st row Together, thus touch the two touch control electrodes output pulse signal peak value it is identical；Due to first from left to right on the 2nd row signal line The area of touch control electrode is smaller than the area of the 5th touch control electrode from left to right, therefore, touches first from left to right on the 2nd row signal line The peak value of the pulse signal of touch control electrode output is less than the peak value for touching the 5th touch control electrode from left to right.Therefore, touch location is sentenced Disconnected sequence 905 is different from the combination that touch location judges the pulse signal that sequence 906 is exported.

Figure 11 is that the determination of the touch screen in the application touches the workflow diagram in site, is said with reference to Figure 10 and Figure 10 It is bright：

Step 1101：Finger touches touch control electrode, the relaxation of signal wire where detection unit 10101 detects the touch control electrode Relaxation time t is simultaneously passed to comparing unit 1002 by Henan time t；

Certainly, similarly, the present embodiment can also be using same group of the first touch control electrode on same subsignal line and passivation Layer surface is realized different relative to the capacitance of same reference potential (referred to ground potential) apart from different modes.For example, with n Exemplified by=2, m=4, i.e., each signal line group includes two sub- signal wires, respectively the first subsignal line and the second subsignal line, First subsignal line and the area of all touch control electrodes on the second subsignal line are identical.Four are dispersed with first subsignal line Touch control electrode group, every group includes two the first sub- touch control electrodes, with group the first sub- touch control electrode and passivation layer show face away from From identical；Four touch control electrode groups are dispersed with second subsignal line, every group includes two the second sub- touch control electrodes, with the of group Two sub- touch control electrodes are identical with the distance that passivation layer shows face.Touch control electrode (the first sub- touch control electrode and the second son of difference group Touch control electrode) it is different from the distance of passivation layer surface.

Along signal transmission direction, the first sub- touch control electrode on the first subsignal line has its corresponding sequence location； In same signal line group, the corresponding sequence location of eight on the first subsignal line the first sub- touch control electrodes is followed successively by from left to right 1~8, the corresponding sequence location of eight on the second subsignal line the second sub- touch control electrodes is also ordered as 1 successively from left to right~ 8.In same signal line group, the numbering with the corresponding touch control electrode group of identical sequence location is corresponding by its on each subsignal line The order of the numbering of subsignal line, which is arranged in order, to be formed touch location and judges that sequence is different.It can be seen that, in same signal line group Touch location judge that sequence is uniquely determined.Realization principle is identical with the embodiment shown in Fig. 9, will not be repeated here.

Due to the parallel distribution of signal wire, (M bars transverse direction signal wire, N bars are longitudinally believed with signal wire cross-distribution in the prior art Number line) compare, in the case where the quantity (M bars) of horizontal signal wire is constant, the present embodiment need to only be scanned M times in scanning, And signal wire cross-distribution mode then needs scanning M+N times in the prior art, it is seen then that the capacitance type touch control screen that the present embodiment is provided Scanning times are advantageously reduced, and then improve the speed of response of touch screen.Because the present embodiment is using detection multirow signal, combination Know otherwise, in addition to it can realize above-mentioned beneficial effect, additionally it is possible under conditions of precision is ensured, it is adaptable to larger chi Very little touch screen.

(1) due to the parallel distribution of signal wire in the application, it is to avoid signal wire cross arrangement and use metal to build bridge and Caused by caused " grid " problem and metal bridge formation the problem of capacitor so that the definition of screen is improved.

Some preferred embodiments of the application have shown and described in described above, but as previously described, it should be understood that the application Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations, Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in application contemplated scope described herein It is modified., then all should be in this Shen and the change and change that those skilled in the art are carried out do not depart from spirit and scope Please be in the protection domain of appended claims.

Claims

1. a kind of capacitance type touch control screen, it is characterised in that including：Signal wire, the first touch control electrode and touch chip；

The signal wire is the conductor wire of parallel distribution, and the signal wire includes the first signal wire；

Multiple first touch control electrodes, first touch control electrode and described first are distributed with each first signal wire Signal wire is electrically connected；

Formed described at least two be distributed on same first signal wire between the first touch control electrode and same reference potential Capacitance it is different.

2. capacitance type touch control screen according to claim 1, it is characterised in that the institute being distributed on same first signal wire State the capacitance formed between the first touch control electrode and same reference potential different.

3. capacitance type touch control screen according to claim 2, it is characterised in that described on same first signal wire The area of one touch control electrode is different, its from big to small or from small to large order change.

4. capacitance type touch control screen according to claim 3, it is characterised in that the capacitance type touch control screen touches for self-capacitance Control, the same reference potential is ground potential；

The area change order of the first touch control electrode on adjacent first signal wire is opposite.

5. capacitance type touch control screen according to claim 3, it is characterised in that the capacitance type touch control screen touches for mutual capacitance type Control, in addition to：

Second touch control electrode；

The signal wire also includes secondary signal line；

Multiple second touch control electrodes, the second touch control electrode and the described second letter are distributed on each secondary signal line The electrical connection of number line；

The touch chip provides pumping signal by the input of the secondary signal line for the second touch control electrode, described The output end of first signal wire provides output signal for the touch chip；

Wherein, secondary signal line distribution parallel with first signal wire, and first signal wire and described second Signal wire is alternately distributed；

The same reference potential is the current potential of the second touch control electrode.

6. capacitance type touch control screen according to claim 5, it is characterised in that the area of the second touch control electrode is identical.

7. capacitance type touch control screen according to claim 5, it is characterised in that the second touch control electrode is touched with described first Control electrode and be located at same film layer.

8. capacitance type touch control screen according to claim 5, it is characterised in that the shape of the second touch control electrode with it is described The shape of first touch control electrode is identical.

9. capacitance type touch control screen according to claim 1, it is characterised in that described on same first signal wire The distance between the surface of one touch control electrode and capacitance type touch control screen difference.

10. capacitance type touch control screen according to claim 9, it is characterised in that the capacitance type touch control screen includes mutual patch Glass-base, nesa coating and the passivation layer of conjunction, the passivation layer are sandwich construction, and first touch control electrode is by described Bright film conducting film is formed, and on the binding face of the glass-base and the passivation layer and/or the passivation layer film layer Between.

11. capacitance type touch control screen according to claim 9, it is characterised in that along the first signal wire bearing of trend On, the distance between first touch control electrode on same first signal wire and surface of the passivation layer press from greatly to Order small or from small to large is arranged.

12. capacitance type touch control screen according to claim 1, it is characterised in that first signal wire includes multiple signals Line group, each signal line group includes n sub- signal wires, is compiled successively by its distributing order on the capacitance type touch control screen Number it is 1~n, wherein n is positive integer more than or equal to 2；

M touch control electrode group is distributed with each subsignal line, is 1~m by its number consecutively, wherein m is to be more than or wait In 2 positive integer, each touch control electrode group is included in n first touch control electrodes, and each touch control electrode group First touch control electrode and same reference potential between the capacitance all same that is formed, the institute of the different touch control electrode groups State the capacitance formed between the first touch control electrode and same reference potential different；

Along the subsignal line bearing of trend, first touch control electrode on the subsignal line has its corresponding sequence position Put；There is the corresponding touch control electrode of the identical sequence location in the same signal line group, on each subsignal line The numbering of group is arranged in order by the order of the numbering of its corresponding subsignal line to be formed touch location and judges sequence；Same institute Each touch location stated in signal line group judges that sequence is differed.

13. capacitance type touch control screen according to claim 1, it is characterised in that first touch control electrode is shaped as water chestnut Shape, circle, ellipse, square, triangle, hexagon or octagon.

14. the capacitance type touch control screen according to claim 4,5 or 12, it is characterised in that the capacitance type touch control screen includes Glass substrate, nesa coating and the passivation layer fitted successively, wherein, first touch control electrode is by the institute positioned at same film layer Nesa coating is stated to be formed.