CN104035639B - Capacitance touch structure, In-cell touch panel, display device and scan method thereof - Google Patents

Abstract

The present invention relates to technical field of touch control, particularly relate to capacitance touch structure, In-cell touch panel and display device and scan method thereof, touch the number of conductors in structure in order to reduce self-capacitance, be unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger to reduce to a certain extent.The capacitance touch structure of the present invention includes: the self-capacitance electrode that multiple same layers are arranged, and lays respectively at least two region that self-capacitance electrode place film surface comprises；It is positioned at the area electrodes in each region, arranges with layer with self-capacitance electrode；The first wire being connected with self-capacitance electrode；Wherein, at least there is a plurality of first wire to meet: first wire is connected with at least two self-capacitance electrode each laid respectively in zones of different；The second wire being connected with area electrodes, wherein, is positioned at the second wire difference that the area electrodes in each region is electrical connected；The touch detection chip being connected with the first wire and the second wire.

Description

Capacitance touch structure, In-cell touch panel, display device and scan method thereof

Technical field

The present invention relates to technical field of touch control, particularly relate to capacitance touch structure, In-cell touch panel and display device and scan method thereof.

Background technology

Along with developing rapidly of Display Technique, touch screen (Touch Screen Panel) is the most gradually in the life of people.At present, the touch structure that touch screen includes can be divided into: mutual capacitance touch structure and self-capacitance touch structure.Structure is touched for self-capacitance, owing to accuracy and the signal to noise ratio of its touch-control sensing are higher, thus receives the favor of Ge great panel producer.

At present, self-capacitance touches structure and utilizes the principle of self-capacitance to realize detection finger touch position, arrange and the self-capacitance electrode of mutually insulated particularly as follows: arrange multiple same layer in touching structure, when human body does not touches screen, the electric capacity that each capacitance electrode is born is a fixed value, when human body touching screen, the electric capacity that self-capacitance electrode corresponding to touch position is born is fixed value superposition body capacitance, and touch detection chip may determine that position of touch in the touch-control time period by the capacitance variation detecting respective capacitance electrode.

In self-capacitance touches structure, each self-capacitance electrode needs to be connected with touch detection chip by single lead-out wire, as illustrated in figs. ia and ib, every lead-out wire specifically includes: self-capacitance electrode 1 is connected to the wire 2 at the frame of touch screen, and is arranged at frame for self-capacitance electrode 1 is conducted to the periphery cabling 4 of the binding post 3 of touch detection chip；Wherein, in fig 1 a, wire 2 and self-capacitance electrode 1 are arranged with layer；And in Figure 1b, self-capacitance electrode 1 and the different layer of wire 2 are arranged, and self-capacitance electrode 1 is electrically connected with by via 5 with corresponding wire 2.

And, in the specific implementation, the quantity of self-capacitance electrode can be the most, as a example by the occupied area of each self-capacitance electrode is as 5mm*5mm, the LCDs of 5 cun is accomplished by 264 self-capacitance electrodes, if smaller by each self-capacitance electrode design, then have more self-capacitance electrode, make the most with the number of conductors that self-capacitance electrode is connected, thus some problems can be caused, such as, the periphery cabling quantity connected one to one with wire that the many meetings of number of conductors make to be arranged at frame also can be the most, are unfavorable for narrow frame design；Or, when wire and self-capacitance electrode are arranged with layer, the many meetings of number of conductors cause touch-control blind area bigger.

In sum, at present, to touch the quantity of the self-capacitance electrode in structure the most for self-capacitance so that the most with the number of conductors that self-capacitance electrode is connected, thus can cause and be unfavorable for narrow frame design and the problem such as touch-control blind area is bigger.

Summary of the invention

Embodiments provide a kind of capacitance touch structure, In-cell touch panel and display device and scan method thereof, touch the number of conductors in structure in order to reduce self-capacitance, be unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger to reduce to a certain extent.

The concrete technical scheme that the embodiment of the present invention provides is as follows:

First aspect, the embodiment of the present invention provides a kind of capacitance touch structure, is applied to touch screen, including:

Multiple same layers are arranged and the self-capacitance electrode of arrangement in matrix form of mutually insulated, lay respectively at least two region that described self-capacitance electrode place film surface comprises；

Be positioned at the area electrodes in each described region, with described self-capacitance electrode with layer arrange, and with described self-capacitance electrode mutually insulated；Wherein, when described capacitance touch structure carries out touch control operation, and when position of touch is the optional position in a region, the capacitance of the area electrodes in described region can change；

A plurality of non-cross the first wire being electrically connected with described self-capacitance electrode；Wherein, at least there is a plurality of described first wire to meet: described first wire is electrical connected with at least two self-capacitance electrode, and described at least two self-capacitance electrode each lays respectively in zones of different；

A plurality of non-cross the second wire being electrically connected with described area electrodes, wherein, is positioned at described second wire that the described area electrodes in each region is electrical connected different；

It is electrical connected with described first wire and the second wire and for touching in sweep time by detecting the capacitance variation of each described self-capacitance electrode and area electrodes to judge the touch detection chip of position of touch.

In embodiments of the present invention, wire each with prior art be electrical connected a self-capacitance electrode scheme compared with, in embodiments of the present invention, self-capacitance electrode place film surface is divided at least two region, self-capacitance electrode lays respectively in described at least two region, and it is satisfied at least to there is a plurality of first wire: described first wire is electrical connected with at least two self-capacitance electrode each laid respectively in zones of different, so that in the case of self-capacitance number of electrodes is constant, reduce the number of conductors being connected with self-capacitance electrode in a large number；Area electrodes is newly increased in each described region marked off, the second wire that described area electrodes in each region is electrical connected is different, due to compared with the number of self-capacitance electrode, the number in the described region marked off is considerably less, so that the number of conductors being connected with area electrodes increased is the most considerably less；Therefore, generally speaking, the number of conductors in the present invention decreases such that it is able to reduces to a certain extent and is unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger.

In embodiments of the present invention, the first wire being connected when the self-capacitance electrode touched only is electrical connected with this self-capacitance electrode, and touch detection chip i.e. may determine that according to the signal intensity on this first wire and there occurs touch-control in the position at this self-capacitance electrode place；And when the first wire that the self-capacitance electrode touched is connected is electrical connected with at least two self-capacitance electrode, owing to described at least two self-capacitance electrode each lays respectively in zones of different, it is provided with area electrodes in each described region, the second wire that described area electrodes in each region is electrical connected is different, therefore, touch detection chip judges, in region which described, touch-control occurs according to the signal intensity on the second wire being electrical connected with area electrodes, and which particular location generation touch-control the signal intensity combined on the first wire being electrical connected with self-capacitance electrode determines whether at, avoid erroneous judgement, realize the accuracy of touch-control sensing.

It is preferred that described self-capacitance electrode lay respectively at that described self-capacitance electrode place film surface comprises along at least two region that horizontal direction marks off, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same string；

Or,

Described self-capacitance electrode lays respectively at least two region vertically marked off that described self-capacitance electrode place film surface comprises, and at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same a line.

In embodiments of the present invention, it is ensured that each first wire extends towards same direction and is parallel to each other, it is easy to realize each first wire with guarantee non-cross.

It is preferred that the area electrodes in each described region includes multiple branches of the gap area between adjacent lines and/or row self-capacitance electrode.

In embodiments of the present invention, it is provided that the concrete structure of a kind of area electrodes, to explain the embodiment of the area electrodes of the embodiment of the present invention, other structures that can be used for realizing the area electrodes in the embodiment of the present invention are also equally applicable to the embodiment of the present invention.

It is preferred that described first wire is arranged with the described different layer of self-capacitance electrode, described second wire is arranged with the different layer of described area electrodes；

Described first wire and the second wire are arranged and non-cross with layer.

In embodiments of the present invention, described first wire is arranged with the described different layer of self-capacitance electrode, and described second wire is arranged with the different layer of described area electrodes, can thoroughly eliminate the touch-control blind area occurred in touch screen.

In embodiments of the present invention, described first wire and the second wire are arranged with layer, can save film number of plies amount.

In embodiments of the present invention, described first wire and the second wire are non-cross, can avoid the phenomenon being short-circuited between respective capacitance electrode and area electrodes.

It is preferred that the relative side of adjacent two described self-capacitance electrodes is broken line.

In embodiments of the present invention, it is ensured that even if when using little finger to touch screen, the position of human body touch-control can also cover multiple self-capacitance electrode region all the time, such that it is able to improve the accuracy of the position of touch determined.

It is preferred that the relative side for broken line of adjacent two self-capacitance electrodes is respectively provided with step structure, two step structure shapes are consistent and are mutually matched；And/or,

The side for broken line that two adjacent self-capacitance electrodes are relative is respectively provided with concave/convex-shaped structure, and two concave/convex-shaped structure shapes are consistent and are mutually matched.

In embodiments of the present invention, it is provided that the embodiment for broken line that concrete adjacent two self-capacitance electrode is relative.

It is preferred that described self-capacitance electrode is connected at the frame of described touch screen by described first wire；Described area electrodes is connected at the frame of described touch screen by described second wire；

Described touch screen also includes: be positioned at the periphery cabling being electrical connected at the frame of described touch screen and with described first wire and the second wire；

Described touch detection chip is electrical connected with described periphery cabling by binding post.

In embodiments of the present invention, number of conductors decreases, and the periphery cabling quantity being connected with wire also can reduce, and this is beneficial to the design of the narrow frame of touch screen.

It is preferred that described self-capacitance electrode lay respectively at that described self-capacitance electrode place film surface comprises along at least two region that horizontal direction marks off, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same string；

The frame of described touch screen is shaped as rectangle, and described in each bar, the bearing of trend of the first wire and the second wire is consistent with the short side direction of described frame.

In embodiments of the present invention, can ensure that each first wire and the second wire extend towards same direction and be parallel to each other, to ensure that to be easy to realize each first wire non-cross, each second wire is non-cross, and the first wire and the second wire non-cross.

Second aspect, the embodiment of the present invention provides a kind of In-cell touch panel, including the upper substrate being oppositely arranged and infrabasal plate, also includes: the capacitance touch structure described in the embodiment of the present invention；

Described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged at the described upper substrate side towards described infrabasal plate, or are arranged at the described infrabasal plate side towards described upper substrate.

In embodiments of the present invention, owing to the number of conductors in the capacitance touch structure described in the embodiment of the present invention decreases, promote to include that the number of conductors in the In-cell touch panel of the described capacitance touch structure that the embodiment of the present invention provides decreases such that it is able to reduce to a certain extent and be unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger.

It is preferred that the In-cell touch panel described in the embodiment of the present invention also includes: be arranged at the described upper substrate side towards described infrabasal plate, or be arranged at the described infrabasal plate black matrix layer towards the side of described upper substrate；

Each described self-capacitance electrode, area electrodes, the first wire and the orthographic projection on described infrabasal plate of second wire are positioned at the orthographic projection on described infrabasal plate of the described black matrix layer.

In embodiments of the present invention, the electric field that described self-capacitance electrode and area electrodes produce does not interferes with the electric field in pixel openings region, therefore, does not interferes with normal display.

In embodiments of the present invention, can avoid affecting the transmitance of In-cell touch panel.

It is preferred that the figure of each described self-capacitance electrode and area electrodes orthographic projection on described infrabasal plate is fenestral fabric, and it is positioned at the orthographic projection on described infrabasal plate of the described black matrix layer.

In embodiments of the present invention, it can be ensured that the uniformity that In-cell touch panel shows.

It is preferred that described black matrix layer is arranged at the described upper substrate side towards described infrabasal plate, described black matrix layer is additionally provided with chromatic filter layer；

Described self-capacitance electrode and area electrodes are arranged with layer, and between described black matrix layer and described chromatic filter layer；Described first wire and the second wire are arranged with layer, and it is positioned on described chromatic filter layer, described first wire is electrically connected with corresponding self-capacitance electrode by the via in described chromatic filter layer, and described second wire is electrically connected with corresponding area electrodes by the via in described chromatic filter layer.

In embodiments of the present invention, provide a kind of a kind of detailed description of the invention described self-capacitance electrode, area electrodes, the first wire and the second wire being embedded on upper substrate, to explain the embodiment of the present invention, other can be used for realizing described self-capacitance electrode, area electrodes, the first wire and the second wire being embedded on up/down substrate in the embodiment of the present invention being also equally applicable to the embodiment of the present invention.

It is preferred that described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged at the described infrabasal plate side towards described upper substrate；

Described self-capacitance electrode and area electrodes are used as common electrode layer.

In embodiments of the present invention, a tunic layer can be saved, reduce the complexity of the In-cell touch panel made in the embodiment of the present invention.

The third aspect, the embodiment of the present invention provides a kind of display device, including: the In-cell touch panel described in the embodiment of the present invention.

In embodiments of the present invention, owing to the number of conductors in the described In-cell touch panel that the embodiment of the present invention provides decreases, promote to include that the number of conductors in the display device of the described In-cell touch panel that the embodiment of the present invention provides decreases such that it is able to reduce to a certain extent and be unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger.

Fourth aspect, the embodiment of the present invention provides a kind of display device, and including external hanging type touch screen, described external hanging type touch screen includes: the capacitance touch structure described in the embodiment of the present invention.

In embodiments of the present invention, owing to the number of conductors in the described capacitance touch structure that the embodiment of the present invention provides decreases, promote to include that the number of conductors in the external hanging type touch screen of the described capacitance touch structure that the embodiment of the present invention provides decreases, and then promote the number of conductors in the display device comprising described external hanging type touch screen to decrease such that it is able to reduce to a certain extent and be unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger.

5th aspect, the embodiment of the present invention provides the scan method of the display device described in a kind of embodiment of the present invention, including:

In a frame time, timesharing carries out touching scanning and display scanning；Wherein:

In touching sweep time, touch detection chip applies to drive signal to each area electrodes by the second wire being connected with each area electrodes and periphery cabling, timesharing；And,

Applying in the time driving signal to each area electrodes, touch detection chip applies to drive signal to respective capacitance electrode by the first wire being connected with respective capacitance electrode and periphery cabling, timesharing；Receive the feedback signal of respective capacitance electrode and area electrodes, according to the feedback signal of described area electrodes, it is judged that the region at position of touch place, and judge position of touch according to the feedback signal of described self-capacitance electrode.

In embodiments of the present invention, timesharing carries out touching scanning and display scanning, can reduce interfering between display signal and touching signals, improve picture quality and touch-control accuracy.

Wire each with prior art be electrical connected a self-capacitance electrode scheme compared with, the present invention has the beneficial effect that:

Self-capacitance electrode place film surface is divided at least two region, self-capacitance electrode lays respectively in described at least two region, and it is satisfied at least to there is a plurality of first wire: described first wire is electrical connected with at least two self-capacitance electrode each laid respectively in zones of different, so that in the case of self-capacitance number of electrodes is constant, reduce the number of conductors being connected with self-capacitance electrode in a large number；Area electrodes is newly increased in each described region marked off, the second wire that described area electrodes in each region is electrical connected is different, due to compared with the number of self-capacitance electrode, the number in the described region marked off is considerably less, so that the number of conductors being connected with area electrodes increased is the most considerably less；Therefore, generally speaking, the number of conductors in the present invention decreases such that it is able to reduces to a certain extent and is unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger.

Further, the first wire being connected when the self-capacitance electrode touched only is electrical connected with this self-capacitance electrode, and touch detection chip i.e. may determine that according to the signal intensity on this first wire and there occurs touch-control in the position at this self-capacitance electrode place；And when the first wire that the self-capacitance electrode touched is connected is electrical connected with at least two self-capacitance electrode, owing to described at least two self-capacitance electrode each lays respectively in zones of different, it is provided with area electrodes in each described region, the second wire that described area electrodes in each region is electrical connected is different, therefore, touch detection chip judges, in region which described, touch-control occurs according to the signal intensity on the second wire being electrical connected with area electrodes, and which particular location generation touch-control the signal intensity combined on the first wire being electrical connected with self-capacitance electrode determines whether at, avoid erroneous judgement, realize the accuracy of touch-control sensing.

Accompanying drawing explanation

Fig. 1 a is the plan structure schematic diagram of the capacitance touch structure that wire and self-capacitance electrode are arranged with layer in prior art；

Fig. 1 b is the plan structure schematic diagram of the capacitance touch structure that wire and the different layer of self-capacitance electrode are arranged in prior art；

Fig. 2 is the first plan structure schematic diagram of capacitance touch structure in the embodiment of the present invention；

Fig. 3 is the second plan structure schematic diagram of capacitance touch structure in the embodiment of the present invention；

Fig. 4 is the partial enlarged drawing in the embodiment of the present invention at the P1 point shown in Fig. 3；

Fig. 5 a～Fig. 5 d is touch-control effect schematic diagram in the embodiment of the present invention；

Fig. 6 is the side-looking structural representation of In-cell touch panel in the embodiment of the present invention；

The structural representation of a self-capacitance electrode in the capacitance touch structure that Fig. 7 provides for the embodiment of the present invention；

Fig. 8 a～the driver' s timing schematic diagram that Fig. 8 c is display device in the embodiment of the present invention.

Detailed description of the invention

In embodiments of the present invention, the capacitance touch structure being applied to touch screen includes: multiple same layers are arranged and the self-capacitance electrode of arrangement in matrix form of mutually insulated, lay respectively at least two region that described self-capacitance electrode place film surface comprises；Be positioned at the area electrodes in each described region, with described self-capacitance electrode with layer arrange, and with described self-capacitance electrode mutually insulated；Wherein, when described capacitance touch structure carries out touch control operation, and when position of touch is the optional position in a region, the capacitance of the area electrodes in described region can change；A plurality of non-cross the first wire being electrically connected with described self-capacitance electrode；Wherein, at least there is a plurality of described first wire to meet: described first wire is electrical connected with at least two self-capacitance electrode, and described at least two self-capacitance electrode each lays respectively in zones of different；A plurality of non-cross the second wire being electrically connected with described area electrodes, wherein, is positioned at described second wire that the described area electrodes in each region is electrical connected different；It is electrical connected with described first wire and the second wire and for touching in sweep time by detecting the capacitance variation of each described self-capacitance electrode and area electrodes to judge the touch detection chip of position of touch；

Wire each with prior art be electrical connected a self-capacitance electrode scheme compared with, in embodiments of the present invention, self-capacitance electrode place film surface is divided at least two region, self-capacitance electrode lays respectively in described at least two region, and it is satisfied at least to there is a plurality of first wire: described first wire is electrical connected with at least two self-capacitance electrode each laid respectively in zones of different, so that in the case of self-capacitance number of electrodes is constant, reduce the number of conductors being connected with self-capacitance electrode in a large number；Area electrodes is newly increased in each described region marked off, the second wire that described area electrodes in each region is electrical connected is different, due to compared with the number of self-capacitance electrode, the number in the described region marked off is considerably less, so that the number of conductors being connected with area electrodes increased is the most considerably less；Therefore, generally speaking, the number of conductors in the present invention decreases such that it is able to reduces to a certain extent and is unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger；

Further, the first wire being connected when the self-capacitance electrode touched only is electrical connected with this self-capacitance electrode, and touch detection chip i.e. may determine that according to the signal intensity on this first wire and there occurs touch-control in the position at this self-capacitance electrode place；And when the first wire that the self-capacitance electrode touched is connected is electrical connected with at least two self-capacitance electrode, owing to described at least two self-capacitance electrode each lays respectively in zones of different, it is provided with area electrodes in each described region, the second wire that described area electrodes in each region is electrical connected is different, therefore, touch detection chip judges, in region which described, touch-control occurs according to the signal intensity on the second wire being electrical connected with area electrodes, and which particular location generation touch-control the signal intensity combined on the first wire being electrical connected with self-capacitance electrode determines whether at, avoid erroneous judgement, realize the accuracy of touch-control sensing.

Below in conjunction with Figure of description, the embodiment of the present invention is described in further detail.

In accompanying drawing, thickness and the shape of each tunic layer do not reflect actual proportions, and purpose is schematically illustrate present invention.

It is preferred that a kind of capacitance touch structure that the embodiment of the present invention provides, it is applied to touch screen, including:

Multiple same layers are arranged and the self-capacitance electrode of arrangement in matrix form of mutually insulated, lay respectively at least two region that described self-capacitance electrode place film surface comprises；

Be positioned at the area electrodes in each described region, with described self-capacitance electrode with layer arrange, and with described self-capacitance electrode mutually insulated；Wherein, when described capacitance touch structure carries out touch control operation, and when position of touch is the optional position in a region, the capacitance of the area electrodes in described region can change；

A plurality of non-cross the first wire being electrically connected with described self-capacitance electrode；Wherein, at least there is a plurality of described first wire to meet: described first wire is electrical connected with at least two self-capacitance electrode, and described at least two self-capacitance electrode each lays respectively in zones of different；

A plurality of non-cross the second wire being electrically connected with described area electrodes, wherein, is positioned at described second wire that the described area electrodes in each region is electrical connected different；

It is electrical connected with described first wire and the second wire and for touching in sweep time by detecting the capacitance variation of each described self-capacitance electrode and area electrodes to judge the touch detection chip of position of touch.

In enforcement, wire each with prior art be electrical connected a self-capacitance electrode scheme compared with, in embodiments of the present invention, self-capacitance electrode place film surface is divided at least two region, self-capacitance electrode lays respectively in described at least two region, and it is satisfied at least to there is a plurality of first wire: described first wire is electrical connected with at least two self-capacitance electrode each laid respectively in zones of different, so that in the case of self-capacitance number of electrodes is constant, reduce the number of conductors being connected with self-capacitance electrode in a large number；Area electrodes is newly increased in each described region marked off, the second wire that described area electrodes in each region is electrical connected is different, due to compared with the number of self-capacitance electrode, the number in the described region marked off is considerably less, so that the number of conductors being connected with area electrodes increased is the most considerably less；Therefore, generally speaking, the number of conductors in the present invention decreases such that it is able to reduces to a certain extent and is unfavorable for narrow frame design and the probability that problem occurs such as touch-control blind area is bigger, and advantageously reduces the cost of touch detection chip.

In enforcement, the first wire being connected when the self-capacitance electrode touched only is electrical connected with this self-capacitance electrode, and touch detection chip i.e. may determine that according to the signal intensity on this first wire and there occurs touch-control in the position at this self-capacitance electrode place；And when the first wire that the self-capacitance electrode touched is connected is electrical connected with at least two self-capacitance electrode, owing to described at least two self-capacitance electrode each lays respectively in zones of different, it is provided with area electrodes in each described region, the second wire that described area electrodes in each region is electrical connected is different, therefore, touch detection chip judges, in region which described, touch-control occurs according to the signal intensity on the second wire being electrical connected with area electrodes, and which particular location generation touch-control the signal intensity combined on the first wire being electrical connected with self-capacitance electrode determines whether at, avoid erroneous judgement, realize the accuracy of touch-control sensing.

The embodiment of the self-capacitance electrode in the embodiment of the present invention, area electrodes, the first wire and the second wire simply will be introduced below.

1, self-capacitance electrode.

It is preferred that the shape of self-capacitance electrode can be regular shape, it is also possible to for irregularly shaped.

It is preferred that the shape of self-capacitance electrode can be any one regular shape, such as, square, rectangle, triangle and circle etc.；Such as, as in figure 2 it is shown, self-capacitance electrode 10 be shaped as square.

Preferably, the shape of self-capacitance electrode can be that any one is irregularly shaped, such as, as shown in Figure 3, described self-capacitance electrode 10 place film surface comprises two regions up and down marked off along horizontal direction, described self-capacitance electrode 10 lays respectively in described upper and lower two regions, and being shaped as of the self-capacitance electrode 10 in described upper region is irregularly shaped.

In enforcement, when being shaped as regular shape of self-capacitance electrode, it is relatively low that it makes complexity ratio.

It is preferred that each the shape of capacitance electrode is identical, such as, as in figure 2 it is shown, the shape of each self-capacitance electrode 10 that includes of capacitance touch structure is the most identical.

Preferably, each the shape of capacitance electrode is identical, such as, as shown in Figure 3, the shape of each self-capacitance electrode 10 in described upper region is the most identical, the shape of each self-capacitance electrode 10 in described lower region is the most identical, and the shape of the self-capacitance electrode 10 in described upper region is different with the shape of the self-capacitance electrode 10 in described lower region.

It is preferred that each the shape of capacitance electrode can also be entirely different, i.e. the shape of any two self-capacitance electrode is the most different.

In enforcement, when the shape of respective capacitance electrode is identical, it is relatively low that it makes complexity ratio.

It is preferred that adjacent two sides that self-capacitance electrode is relative are broken line.

It is preferred that the relative side for broken line of adjacent two self-capacitance electrodes is respectively provided with step structure, two step structure shapes are consistent and are mutually matched；And/or,

The side for broken line that two adjacent self-capacitance electrodes are relative is respectively provided with concave/convex-shaped structure, and two concave/convex-shaped structure shapes are consistent and are mutually matched.

Such as, as it is shown on figure 3, the relative side for broken line of any two adjacent self-capacitance electrode 10 in described lower region is respectively provided with step structure, two step structure shapes are consistent and are mutually matched；The side for broken line that any two adjacent self-capacitance electrode 10 in described upper region is relative is respectively provided with concave/convex-shaped structure, and two concave/convex-shaped structure shapes are consistent and are mutually matched.

In enforcement, side relative for two adjacent self-capacitance electrodes is disposed as broken line, can ensure that even if the position of human body touch-control can also cover multiple self-capacitance electrode region all the time when using little finger to touch screen, such that it is able to improve the accuracy of the position of touch determined.

2, area electrodes.

Preferably, the operation principle of area electrodes is similar with the operation principle of self-capacitance electrode, when human body does not touches screen, the electric capacity that area electrodes in each region is born is a fixed value, when human body touching screen, the electric capacity that the area electrodes of touch position region is born is fixed value superposition body capacitance, and touch detection chip may determine that position of touch region by the capacitance variation detecting the area electrodes in each region in touching sweep time.

It is preferred that for the structure of area electrodes, as long as it meets following condition: when described capacitance touch structure carries out touch control operation, and when position of touch is the optional position in a region, the capacitance of the area electrodes in described region can change.

It is preferred that the area electrodes in each described region includes multiple branches of the gap area between adjacent lines and/or row self-capacitance electrode.

It is preferred that the area electrodes in each described region includes multiple branches of the gap area between any two adjacent lines and row self-capacitance electrode；

Such as, as in figure 2 it is shown, area electrodes 20 includes laying respectively at multiple branches 21 of the gap area between any two adjacent lines self-capacitance electrodes 10 and including laying respectively at multiple branches 22 of the gap area between any two adjacent column self-capacitance electrodes 10.

It is preferred that the area electrodes in each described region includes multiple branches of the gap area between any two adjacent column self-capacitance electrodes；

Such as, as it is shown on figure 3, area electrodes 20 includes the multiple branches 22 laying respectively at the gap area between any two adjacent column self-capacitance electrodes 10.

It is preferred that the area electrodes in each described region includes multiple branches of the gap area between any two adjacent lines self-capacitance electrodes；

In being embodied as, area electrodes includes that the embodiment of multiple branches of the gap area between adjacent lines self-capacitance electrode includes that with the area electrodes shown in Fig. 3 the embodiment of multiple branches of the gap area between adjacent column self-capacitance electrode is similar, does not repeats them here.

In enforcement, when area electrodes includes multiple branch of the gap area between any two adjacent lines and/or row self-capacitance electrode, it is ensured that when touching screen, area electrodes can be touched, thus advantageously ensure that the accuracy of the position of touch determined.

3, the first wire.

It is preferred that can as required described first wire be arranged or the setting of different layer with layer with described self-capacitance electrode.

It is preferred that described first wire is arranged with the described different layer of self-capacitance electrode, the first wire that self-capacitance electrode is arranged with corresponding different layer is electrical connected by via；

Such as, as shown in Figures 2 and 3, the first wire 41 that self-capacitance electrode 10 is arranged with corresponding different layer by via 30 is electrical connected.

In enforcement, self-capacitance electrode and the different layer of the first wire are arranged, and can reduce the touch-control blind area occurred in touch screen.

It is preferred that a self-capacitance electrode can be electrical connected with the first wire described at least one.

It is preferred that a self-capacitance electrode and described first wire are electrical connected.

In enforcement, a self-capacitance electrode and described first wire are electrical connected, and can reduce the quantity of the first wire further.

4, the second wire.

It is preferred that can as required described second wire be arranged or the setting of different layer with layer with described area electrodes.

It is preferred that described second wire is arranged with the different layer of described area electrodes, the second wire that area electrodes is arranged with corresponding different layer is electrically connected with by via.

In enforcement, area electrodes and the different layer of the second wire are arranged, and can reduce the touch-control blind area occurred in touch screen.

It is preferred that the area electrodes being positioned at a region is electrical connected with the second wire described at least one.

It is preferred that area electrodes second wire described with being positioned at a region is electrical connected.

In enforcement, area electrodes second wire described with being positioned at a region is electrical connected, and can reduce the quantity of wire further.

In enforcement, self-capacitance electrode and area electrodes are arranged with layer, and self-capacitance electrode and the different layer of the first wire are arranged, and area electrodes and the different layer of the second wire are arranged, and can thoroughly eliminate the touch-control blind area occurred in touch screen.

It is preferred that described first wire and the second wire can be arranged with layer, it is also possible to different layer is arranged.

It is preferred that described first wire and the second wire are arranged and non-cross with layer.

In enforcement, described first wire and the second wire are arranged with layer, can save film number of plies amount.

In enforcement, described first wire and the second wire are non-cross, can avoid the phenomenon being short-circuited between respective capacitance electrode and area electrodes.

It is preferred that described first wire and the second wire directly can be electrically connected with touch detection chip, it is also possible to be electrically connected with touch detection chip by periphery cabling.

It is preferred that described self-capacitance electrode is connected at the frame of described touch screen by described first wire；Described area electrodes is connected at the frame of described touch screen by described second wire；

Described touch screen also includes: be positioned at the periphery cabling being electrical connected at the frame of described touch screen and with described first wire and the second wire；

Described touch detection chip is electrical connected with described periphery cabling by binding post.

In enforcement, number of conductors decreases, and the periphery cabling quantity being connected with wire also can reduce, and this is beneficial to the design of the narrow frame of touch screen.

Described self-capacitance electrode in the embodiment of the present invention will be laid respectively at least two region that self-capacitance electrode place film surface comprises below, and it is satisfied at least to there is a plurality of described first wire: described first wire is simply introduced with the embodiment that at least two self-capacitance electrode each laid respectively in zones of different is electrical connected.

It should be noted that, the embodiment that described self-capacitance electrode place film surface marks off at least two region is all applicable to the embodiment of the present invention by any one, i.e., can be along any direction, the mode of employing decile or not decile, marks off at least two region by described self-capacitance electrode place film surface；

Such as, along horizontal and/or vertical, described self-capacitance electrode place film surface is marked off at least two region；Or, along with the direction that horizontal direction angle is 45 degree, described self-capacitance electrode place film surface is marked off at least two region；Or, along with the direction that horizontal direction angle is 135 degree, described self-capacitance electrode place film surface is marked off at least two region.

It should be noted that any one realizes first wire and at least two self-capacitance electrode each laid respectively in zones of different is electrical connected, and ensure that the non-cross embodiment of each first wire is all applicable to the embodiment of the present invention.

It is preferred that described self-capacitance electrode lay respectively at that described self-capacitance electrode place film surface comprises along at least two region that horizontal direction marks off, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same string.

In enforcement, it is ensured that each first wire extends towards same direction and is parallel to each other, it is easy to realize each first wire with guarantee non-cross.

Preferably, described self-capacitance electrode lay respectively at that described self-capacitance electrode place film surface comprises along at least two region that horizontal direction marks off, and for each described region, determine the line number belonging to the respective capacitance electrode being positioned at described region is in described region and columns respectively；Wherein:

Article one, affiliated line number and multiple self-capacitance electrodes that columns is same row and column are electrical connected described first wire with in each region.

Such as, as in figure 2 it is shown, self-capacitance electrode 10 lay respectively at that described self-capacitance electrode 10 place film surface comprises along in two regions up and down that horizontal direction marks off；

For described upper region, determine the respective capacitance electrode 10 being positioned at described upper region line number on described belonging to region and columns respectively；Such as, self-capacitance electrode A belongs to the first row first row on described in region；And, for described lower region, determine the line number belonging to the respective capacitance electrode 10 being positioned at described lower region is in described lower region and columns respectively；Such as, self-capacitance electrode B belongs to the first row first row in described lower region；

Article one, affiliated line number and two self-capacitance electrodes 10 that columns is same row and column are electrical connected the first wire 41 with in described lower regions；Such as, self-capacitance electrode A belongs to the first row first row on described in region, self-capacitance electrode B belongs to the first row first row in described lower region, self-capacitance electrode A is identical with columns with self-capacitance electrode B affiliated line number in self corresponding region, uses wire w1 to be electrical connected with self-capacitance electrode A and self-capacitance electrode B simultaneously.

In enforcement, the respective capacitance electrode that first wire described with is electrical connected line number and columns belonging in self corresponding region are same row and column, therefore, follow this rule, when signal intensity on described first wire, can be it can be easily ascertained that may be at which particular location generation touch-control, i.e. touch detection chip can be simplified and judge the complexity of position of touch.

It is preferred that described self-capacitance electrode lay respectively at that described self-capacitance electrode place film surface comprises along at least two region that horizontal direction marks off, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same string；

The frame of described touch screen is shaped as rectangle, and described in each bar, the bearing of trend of the first wire and the second wire is consistent with the short side direction of described frame.

In enforcement, it is ensured that each first wire and the second wire extend towards same direction and be parallel to each other, non-cross to ensure to be easy to realize each first wire, each second wire is non-cross, and the first wire and the second wire non-cross.

It is preferred that described self-capacitance electrode lays respectively at least two region vertically marked off that described self-capacitance electrode place film surface comprises, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same a line.

In enforcement, it is ensured that each first wire extends towards same direction and is parallel to each other, it is easy to realize each first wire with guarantee non-cross.

Preferably, described self-capacitance electrode lays respectively at least two region vertically marked off that described self-capacitance electrode place film surface comprises, and for each described region, determine the line number belonging to the respective capacitance electrode being positioned at described region is in described region and columns respectively；Wherein:

Article one, affiliated line number and multiple self-capacitance electrodes that columns is same row and column are electrical connected described first wire with in each region.

In enforcement, the respective capacitance electrode that first wire described with is electrical connected line number and columns belonging in self corresponding region are same row and column, therefore, follow this rule, when signal intensity on described first wire, can be it can be easily ascertained that may be at which particular location generation touch-control, i.e. touch detection chip can be simplified and judge the complexity of position of touch.

It is preferred that described self-capacitance electrode lays respectively at least two region vertically marked off that described self-capacitance electrode place film surface comprises, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same a line；

The frame of described touch screen is shaped as rectangle, and described in each bar, the bearing of trend of the first wire and the second wire is consistent with the long side direction of described frame.

In enforcement, it is ensured that each first wire and the second wire extend towards same direction and be parallel to each other, non-cross to ensure to be easy to realize each first wire, each second wire is non-cross, and the first wire and the second wire non-cross.

Below in conjunction with Fig. 3, the embodiment of the capacitance touch structure in the embodiment of the present invention is described in detail.

Embodiment one

In the embodiment of the present invention one, in conjunction with Fig. 3, the structure of capacitance touch structure will be described in detail.

As it is shown on figure 3, the capacitance touch structure being applied to touch screen includes:

Multiple same layers are arranged and the self-capacitance electrode 10 of arrangement in matrix form of mutually insulated, lay respectively at that described self-capacitance electrode 10 place film surface comprises along in two regions up and down that horizontal direction not decile marks；Wherein, Fig. 3 is to there are 4 row 4 in described upper region to arrange and there are 3 row 4 totally in 16 self-capacitance electrodes 10 and described lower region and arrange and illustrate as a example by totally 12 self-capacitance electrodes 10；

It is positioned at an area electrodes 20 in each described region, the area electrodes 20 being positioned at described upper region is arranged with layer with self-capacitance electrode 10, including multiple branches 22 of the gap area between adjacent column self-capacitance electrode, and with self-capacitance electrode 10 mutually insulated；The embodiment of the area electrodes 20 being positioned at described lower region is similar with the embodiment of the area electrodes 20 being positioned at described upper region；

Layer different with self-capacitance electrode 10 arranges and self-capacitance electrode 10 is connected to a plurality of the first wire 41 being parallel to each other at the frame of described touch screen；Wherein, article one, affiliated line number and two self-capacitance electrodes 10 that columns is same row and column are electrical connected the first wire 41 with in described lower regions, particularly as follows: the first wire w1 is electrical connected with self-capacitance electrode A and self-capacitance electrode a, first wire w2 and self-capacitance electrode E and self-capacitance electrode e is electrical connected, by that analogy；Additionally, for the self-capacitance electrode M in described upper region, self-capacitance electrode N, self-capacitance electrode O and self-capacitance electrode P, line number and self-capacitance electrode that columns is same row and column belonging to not existing in described lower region therewith, therefore, be respectively electrical connected first wire 41 by it；

Layer different with area electrodes 20 arranges and area electrodes 20 is connected to the second wire (not shown) that two at the frame of described touch screen are non-cross, wherein, area electrodes pad1 in described upper region is electrical connected second wire, and area electrodes pad2 in described lower region is electrical connected second wire；

It is positioned at the periphery cabling 50 being connected at the frame of described touch screen and with the first wire 41 and the second wire one_to_one corresponding described in each bar；

Be electrical connected by binding post 60 and periphery cabling 50 and in touching sweep time by detecting the capacitance variation of respective capacitance electrode 10 and area electrodes 20 to judge the touch detection chip of position of touch.

In enforcement, by 16 the self-capacitance electrodes 10 being positioned at upper region shown in Fig. 3 and be positioned at lower region 12 self-capacitance electrodes 10 as a example by；

Be electrical connected the scheme of a self-capacitance electrode according in prior art wire, needs 28 wires altogether；

According to the scheme described in the embodiment of the present invention, need 12 with in described lower regions belonging to the first wire 41 of being electrical connected of line number and two self-capacitance electrodes 10 that columns is same row and column, need 4 the first wires 41 being electrical connected respectively with the self-capacitance electrode M in described upper region, self-capacitance electrode N, self-capacitance electrode O and self-capacitance electrode P；Need 2 the second wires being electrical connected respectively with the area electrodes in described upper and lower two regions；Therefore, 18 wires are needed altogether；

Therefore, generally speaking, the number of conductors in the present invention decreases so that the periphery cabling quantity connected one to one with wire decreases, and this is beneficial to the design of the narrow frame of touch screen, is also beneficial to reduce the cost of touch detection chip.

Embodiment two

In the embodiment of the present invention two, in conjunction with Fig. 3, the touch-control principle of the capacitance touch structure being applied to touch screen in the embodiment of the present invention will be described in detail.

One, single-point touch.

1, touch point is positioned in the upper region shown in Fig. 3.

As shown in Figure 4, the P1 point being positioned in the upper region shown in Fig. 3 and area electrodes pad1 in described upper region, self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E and self-capacitance electrode F all parts are overlapping；P1 point is S1 with the overlapping region area of self-capacitance electrode A, P1 point is S3 with the overlapping region area that overlapping region area is S2, P1 point and self-capacitance electrode F that overlapping region area is S4, P1 point and self-capacitance electrode E of self-capacitance electrode B, wherein, S2 > S1 > S3 > S4；

When finger touch to the P1 point position shown in Fig. 3 (touch-control design sketch is concrete as shown in Figure 5 a), the signal on the second wire, the first wire w1, the first wire w5, the first wire w2 and the first wire w6 being electrical connected with area electrodes pad1, self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E and self-capacitance electrode F respectively all can change；Further, for the self-capacitance electrode the biggest with the area of P1 point overlapping region, the change amount signal on its first wire being electrical connected is the biggest；

According to the signal intensity on the second wire being electrical connected with area electrodes pad1, touch detection chip judges that region occurs touch-control on described；Determine whether that position of touch and self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E and self-capacitance electrode F all parts are overlapping according to the signal intensity on the first wire w1, the first wire w5, the first wire w2 and the first wire w6 being electrical connected with self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E and self-capacitance electrode F respectively；And according to the change amount signal size on described first wire w1, the first wire w5, the first wire w2 and the first wire w6, it is judged that concrete position of touch.

2, touch point is positioned in the lower region shown in Fig. 3.

As it is shown on figure 3, the P2 point being positioned in the lower region shown in Fig. 3 and area electrodes pad2 in described lower region, self-capacitance electrode a, self-capacitance electrode e and self-capacitance electrode f all parts are overlapping；P2 point is S7, wherein, S5 with the overlapping region area that overlapping region area is S6, P2 point and self-capacitance electrode f that overlapping region area is S5, P2 point and self-capacitance electrode e of self-capacitance electrode a > S7 > S6；

When finger touch to the P2 point position shown in Fig. 3 (touch-control design sketch is concrete as shown in Figure 5 b), the signal on the second wire, the first wire w1, the first wire w2 and the first wire w6 being electrical connected with area electrodes pad2, self-capacitance electrode a, self-capacitance electrode e and self-capacitance electrode f respectively all can change；Further, for the self-capacitance electrode the biggest with the area of P2 point overlapping region, the change amount signal on its first wire being electrical connected is the biggest；

Touch detection chip judges to occur touch-control in described lower region according to the signal intensity on the second wire being electrical connected with area electrodes pad2；Determine whether that position of touch is overlapping with self-capacitance electrode a, self-capacitance electrode e and self-capacitance electrode f all parts according to the signal intensity on the first wire w1, the first wire w2 and the first wire w6 being electrical connected with self-capacitance electrode a, self-capacitance electrode e and self-capacitance electrode f respectively；And according to the change amount signal size on described first wire w1, the first wire w2 and the first wire w6, it is judged that concrete position of touch.

Two, multi-point touch.

1, touch point is the P1 point shown in Fig. 3 and P2 point.

When touch-control is to the P1 point shown in Fig. 3 and P2 point position for finger simultaneously, touch-control design sketch is concrete as shown in Figure 5 c；To facilitate understanding of the present embodiment of the invention the scheme in, it is assumed that during touch-control a to position, the signal intensity total amount on the first wire of the respective capacitance electrode connection that described position is corresponding is a unit quantity:

At finger touch to P1 point, the signal on the second wire being electrical connected with area electrodes pad1 can change, it may be determined that has touch-control to occur in described upper region；And, the signal on the first wire w1, the first wire w5, the first wire w2 and the first wire w6 being electrical connected with self-capacitance electrode A, self-capacitance electrode B, self-capacitance electrode E and self-capacitance electrode F respectively can change, according to the self-capacitance electrode the biggest with the area of P1 point overlapping region, the principle that change amount signal on its first wire being electrical connected is the biggest, determine that the change amount signal on the first wire w2 is 0.4, change amount signal on first wire w1 is 0.3, change amount signal on first wire w6 is 0.2, and the change amount signal on the first wire w5 is 0.1；

At finger touch to P2 point, the signal on the second wire being electrical connected with area electrodes pad2 can change, it may be determined that has touch-control to occur in described lower region；And, the signal on the first wire w1, the first wire w2 and the first wire w6 being electrical connected with self-capacitance electrode a, self-capacitance electrode e and self-capacitance electrode f respectively can change, according to the self-capacitance electrode the biggest with the area of P2 point overlapping region, the principle that change amount signal on its first wire being electrical connected is the biggest, determine that the change amount signal on the first wire w1 is 0.6, change amount signal on first wire w2 is 0.3, and the change amount signal on the first wire w6 is 0.1；

It is that two unit quantities and described upper and lower two regions all have touch-control to occur according to the signal intensity total amount on each first wire, determines one touch point of each existence in described upper and lower two regions；

nullThe first wire w1 according to signal intensity、First wire w2、The position relationship of the self-capacitance electrode that the first wire w5 and the first wire w6 connects respectively is (herein，Position relationship is adjacent)，Change amount signal specific size on first wire of each signal intensity is (herein，Signal intensity total amount on first wire w1 is 0.9，Signal intensity total amount on first wire w2 is 0.7，Signal intensity total amount on first wire w5 is 0.1，Signal intensity total amount on first wire w6 is 0.3)，And the figure of the self-capacitance electrode in described upper and lower two regions，Determine position and the self-capacitance electrode A of touch point in described upper region、Self-capacitance electrode B、Self-capacitance electrode E and self-capacitance electrode F all parts are overlapping，And determine position and the self-capacitance electrode a of touch point in described lower region、Self-capacitance electrode e and self-capacitance electrode f all parts are overlapping.

2, touch point is the P1 point shown in Fig. 3, P2 point and P3 point.

When touch-control is to the P1 point shown in Fig. 3, P2 point and P3 point position for finger simultaneously, touch-control design sketch is concrete as fig 5d；

In being embodied as, determine that P1 point, P2 point are similar with the embodiment of the position determining P1 point and P2 point with the embodiment of the position of P3 point, do not repeat them here.

Preferably, capacitance touch structure described in the embodiment of the present invention can apply to any one touch screen in prior art, such as, external hanging type touch screen (Add on Mode Touch Panel), covering surface-type touch screen (On Cell Touch Panel) and In-cell touch panel (In Cell Touch Panel).

It is preferred that the embodiment of the present invention provides a kind of In-cell touch panel, including the upper substrate being oppositely arranged and infrabasal plate, also include: the capacitance touch structure described in the embodiment of the present invention；

Described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged at the described upper substrate side towards described infrabasal plate, or are arranged at the described infrabasal plate side towards described upper substrate.

In enforcement, In-cell touch panel includes the capacitance touch structure described in the embodiment of the present invention, owing to the number of conductors in the capacitance touch structure described in the embodiment of the present invention decreases, promote to include that the number of conductors in the In-cell touch panel of the described capacitance touch structure that the embodiment of the present invention provides decreases, be conducive to the narrow frame design of described In-cell touch panel, be conducive to the touch-control blind area reducing in described In-cell touch panel, and the reduction of the cost of the most described In-cell touch panel.

It is generally located on infrabasal plate it is preferred that be positioned at the periphery cabling at frame.

If during it is preferred that described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged on upper substrate, the first wire and the second wire can be electrically connected with by the effect of conducting up and down of the gold goal in sealed plastic box and the periphery cabling being positioned at infrabasal plate；If described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged on infrabasal plate, the first wire and the second wire are directly electrically connected with the periphery cabling being positioned at infrabasal plate.

Preferably, the touch detection chip being electrical connected by binding post and described periphery cabling is arranged on circuit board, specifically can be arranged on the circuit board being positioned at display device back, can be arranged on the circuit board of the frame region being positioned at display device, it is also possible to be arranged on the flexible PCB that described infrabasal plate comprises.

It is preferred that the described In-cell touch panel that the embodiment of the present invention provides, also include: be arranged at the described upper substrate side towards described infrabasal plate, or be arranged at the described infrabasal plate black matrix layer towards the side of described upper substrate；

Each described self-capacitance electrode, area electrodes, the first wire and the orthographic projection on described infrabasal plate of second wire are positioned at the orthographic projection on described infrabasal plate of the described black matrix layer.

In enforcement, owing to each described self-capacitance electrode, area electrodes, the first wire and the orthographic projection on described infrabasal plate of second wire are positioned at the orthographic projection on described infrabasal plate of the described black matrix layer, the electric field that described self-capacitance electrode and area electrodes produce does not interferes with the electric field in pixel openings region, therefore, normal display is not interfered with.

In enforcement, owing to each described self-capacitance electrode, area electrodes, the first wire and the orthographic projection on described infrabasal plate of second wire are positioned at the orthographic projection on described infrabasal plate of the described black matrix layer, it is also possible to avoid affecting the transmitance of touch screen.

It is preferred that the figure of each described self-capacitance electrode and area electrodes orthographic projection on described infrabasal plate is fenestral fabric, and it is positioned at the orthographic projection on described infrabasal plate of the described black matrix layer.

In enforcement, the density of touch screen is generally at grade, and the density of display screen is generally at micron order, therefore, multiple pixel cells in a general self-capacitance electrode or the corresponding display screen of area electrodes meeting, in order to ensure that respective capacitance electrode and area electrodes are not take up the open area of pixel cell, respective capacitance electrode can be cut out with the position corresponding with the open area of pixel cell in area electrodes, the spacing (Pitch) of the self-capacitance electrode of the touch screen that in the embodiment of the present invention, the density of indication refers to or the spacing of the pixel cell of display screen.

Such as, as a example by the fenestral fabric that figure is the orthographic projection being positioned at described black matrix layer on described infrabasal plate of each described self-capacitance electrode orthographic projection on described infrabasal plate, as shown in Figure 7, the position that each capacitance electrode 10 is corresponding with the open area of pixel cell is cut out, can be i.e. the fenestral fabric that the orthographic projection on infrabasal plate is positioned at the black matrix layer 100 orthographic projection on infrabasal plate by the graphic designs of respective capacitance electrode 10, and the uniformity in order to ensure display, the gap location of general each sub-pixel unit in each pixel cell is provided with self-capacitance electrode 10, each of which group RGB sub-pixel unit one pixel cell of composition.

Preferably, when described self-capacitance electrode, area electrodes, the first wire and the second wire being arranged at described upper substrate towards the side of described infrabasal plate, described self-capacitance electrode, area electrodes, the first wire and the second wire can be arranged at upper substrate and face down any position of substrate side；

Such as, the face down side of substrate of described upper substrate is sequentially laminated with black matrix layer, chromatic filter layer, flatness layer and dottle pin nitride layer, wherein:

Described self-capacitance electrode and area electrodes are between described black matrix layer and chromatic filter layer, and described first wire and the second wire are positioned on described chromatic filter layer；Or,

Described self-capacitance electrode and area electrodes are between described chromatic filter layer and flatness layer, and described first wire and the second wire are positioned on described flatness layer；Or,

Described self-capacitance electrode and area electrodes are between described flatness layer and described dottle pin nitride layer, and described first wire and the second wire are between described upper substrate and described flatness layer.

Below with described self-capacitance electrode and area electrodes between described black matrix layer and chromatic filter layer, and as a example by described first wire and the second wire are positioned on described chromatic filter layer, the embodiment of the In-cell touch panel described in the embodiment of the present invention is described in detail.

As shown in Figure 6, the In-cell touch panel described in the embodiment of the present invention, including:

The upper substrate 01 being oppositely arranged and infrabasal plate 02；

It is positioned at upper substrate 01 to face down the black matrix layer 100 of substrate 02 side；

It is positioned at black matrix layer 100 to face down the self-capacitance electrode 10 of substrate 02 side and area electrodes 20 place film layer；

It is positioned at self-capacitance electrode 10 and the area electrodes 20 place film aspect chromatic filter layer 03 to infrabasal plate 02 side；

It is positioned at chromatic filter layer 03 to face down the first wire of substrate 02 side and the second wire place film layer (not shown in Fig. 6)；Wherein, the first wire is connected with corresponding self-capacitance electrode 10 by the via (not shown in Fig. 6) in chromatic filter layer, and the second wire is connected with corresponding area electrodes 20 by the via in chromatic filter layer；

It is positioned at described first wire and the second wire place film aspect flatness layer 04 to infrabasal plate 02 side.

In enforcement, self-capacitance electrode and area electrodes place film layer are arranged between black matrix layer and chromatic filter layer, first wire and the second wire place film layer are arranged on chromatic filter layer face down the side of substrate, it is possible to reduce body capacitance is to the interference of the signal of transmission on the first wire and the second wire.

It should be noted that, above-mentioned is all to arrange with the different layer of self-capacitance electrode with described first wire, described second wire is arranged with the different layer of area electrodes, and as a example by described first wire and the second wire are arranged with layer, at described upper substrate, the introduction that the embodiment of described self-capacitance electrode, area electrodes, the first wire and the second wire is carried out is set towards the side of described infrabasal plate；When residing for described self-capacitance electrode, area electrodes, the first wire and the second wire, the embodiment of film layer is other embodiments, the embodiment arranging described self-capacitance electrode, area electrodes, the first wire and the second wire at described upper substrate towards the side of described infrabasal plate is all similar with embodiment described above, does not repeats them here.

Preferably, when described self-capacitance electrode, area electrodes, the first wire and the second wire being arranged at described infrabasal plate towards the side of described upper substrate, described self-capacitance electrode, area electrodes, the first wire and the second wire can be arranged at the described infrabasal plate any position towards described upper substrate side；

Described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged at the described infrabasal plate detailed description of the invention towards the side of described upper substrate with that described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged at described upper substrate is similar towards the detailed description of the invention of the side of described infrabasal plate, do not repeat them here.

It is preferred that when described self-capacitance electrode, area electrodes, the first wire and the second wire are arranged at described infrabasal plate towards the side of described upper substrate,

Described self-capacitance electrode and area electrodes are used as common electrode layer.

In enforcement, described self-capacitance electrode and area electrodes are used as common electrode layer, a tunic layer can be saved, reduce the complexity of the In-cell touch panel made in the embodiment of the present invention.

Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, the described In-cell touch panel provided including the embodiment of the present invention；

Described display device can be: any product with display function or the parts such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.The enforcement of this display device may refer to the embodiment of above-mentioned In-cell touch panel, repeats no more in place of repetition.

In enforcement, owing to the number of conductors in the described In-cell touch panel that the embodiment of the present invention provides decreases, promote to include that the number of conductors in the display device of the described In-cell touch panel that the embodiment of the present invention provides decreases, be conducive to the narrow frame design of described display device, be conducive to the touch-control blind area reducing in described display device, and the reduction of the cost of the most described display device.

Based on same inventive concept, the embodiment of the present invention additionally provides a kind of display device, and including external hanging type touch screen, described external hanging type touch screen includes: the described capacitance touch structure that the embodiment of the present invention provides；

Described display device can be: any product with display function or the parts such as mobile phone, panel computer, television set, display, notebook computer, DPF, navigator.The enforcement of this display device may refer to the embodiment of above-mentioned capacitance touch structure, repeats no more in place of repetition.

In enforcement, owing to the number of conductors in the described capacitance touch structure that the embodiment of the present invention provides decreases, promote to include that the number of conductors in the external hanging type touch screen of the described capacitance touch structure that the embodiment of the present invention provides decreases, and then promote the number of conductors in the display device comprising described external hanging type touch screen to decrease, be conducive to the narrow frame design of described display device, be conducive to the touch-control blind area reducing in described display device, and the reduction of the cost of the most described display device.

Based on same inventive concept, the embodiment of the present invention additionally provides a kind of scan method to described display device, including:

In a frame time, timesharing carries out touching scanning and display scanning；Wherein:

In touching sweep time, touch detection chip applies to drive signal to each area electrodes by the second wire being connected with each area electrodes and periphery cabling, timesharing；And,

Applying in the time driving signal to each area electrodes, touch detection chip applies to drive signal to respective capacitance electrode by the first wire being connected with respective capacitance electrode and periphery cabling, timesharing；Receive the feedback signal of respective capacitance electrode and area electrodes, according to the feedback signal of described area electrodes, it is judged that the region at position of touch place, and judge position of touch according to the feedback signal of described self-capacitance electrode.

In enforcement, timesharing carries out touching scanning and display scanning, can reduce interfering between display signal and touching signals, improve picture quality and touch-control accuracy；Further, in being embodied as, display driver chip and touch detection chip can be integrated into a chip, to reduce production cost.

Below in conjunction with Fig. 8 a, scan method to described display device in the embodiment of the present invention is described in detail.

As shown in Figure 8 a, display device is shown, and the time of each frame (V-sync) is divided into display section sweep time (Display) and touches section sweep time (Touch), such as, the time of display one frame of display device is 16.7ms, choose wherein 5ms as touch sweep time section, other 11.7ms is as display section sweep time, naturally it is also possible to according to the duration adjusting both that the disposal ability of IC chip is suitable, be not specifically limited at this；

At display section sweep time (Display), to every gate line Gate1, Gate2 in display device ... Gate n applies scanning gate signal successively, data signal line Data is applied grayscale signal, it is achieved display function；

At touch-control time period (Touch), touch detection chip timesharing is to each area electrodes pad1 ... padm applies to drive signal；And, applying in the time driving signal to each area electrodes, touch detection chip timesharing is to respective capacitance electrode Cx1 ... Cxn applies to drive signal；Simultaneously, receive respective capacitance electrode Cx1 ... Cxn and each area electrodes pad1 ... the feedback signal of padm, by to each area electrodes pad1 ... the analysis of the feedback signal of padm, judge the region at position of touch place, and by respective capacitance electrode Cx1 ... the analysis of the feedback signal of Cxn, judge position of touch, to realize touch controllable function.

Preferably, it is arranged at the described infrabasal plate side towards described upper substrate at described self-capacitance electrode and area electrodes, and using described self-capacitance electrode and area electrodes as common electrode layer use time, at display section sweep time (Display), respective capacitance electrode and area electrodes apply Vcom voltage.

In enforcement, it is ensured that display device is normally carried out display.

Preferably, when described self-capacitance electrode and area electrodes are arranged at described infrabasal plate towards the side of described upper substrate, at display section sweep time (Display), respective capacitance electrode and area electrodes apply floating voltage (that is, unsettled).

In enforcement, the self-capacitance electrode on described upper substrate and area electrodes and the electrode on described infrabasal plate can be avoided to be formed just to electric field, to avoid the display to display device to produce negative influence to a certain extent.

It is preferred that in touching sweep time, touch detection chip can also apply to drive signal to each area electrodes simultaneously；Further, timesharing applies to drive signal to respective capacitance electrode；

Such as, as shown in Figure 8 b, at touch-control time period (Touch), touch detection chip is simultaneously to each area electrodes pad1 ... padm applies to drive signal, and timesharing is to respective capacitance electrode Cx1 ... Cxn applies to drive signal；Meanwhile, respective capacitance electrode Cx1 is received ... Cxn and each area electrodes pad1 ... the feedback signal of padm, by the analysis to feedback signal, it is judged that position of touch, to realize touch controllable function.

It is preferred that in touching sweep time, touch detection chip can also timesharing apply to drive signal to each area electrodes and respective capacitance electrode；

Such as, as shown in Figure 8 c, at touch-control time period (Touch), touch detection chip timesharing is to each area electrodes pad1 ... padm, and each capacitance electrode Cx1 ... Cxn applies to drive signal；Meanwhile, respective capacitance electrode Cx1 is received ... Cxn and each area electrodes pad1 ... the feedback signal of padm, by the analysis to feedback signal, it is judged that position of touch, to realize touch controllable function.

It is preferred that when timesharing applies to drive signal to respective capacitance electrode, touch detection chip can scan respective capacitance electrode the most one by one, apply to drive signal to respective capacitance electrode with timesharing；Respective capacitance electrode can also be scanned the most one by one, apply to drive signal to respective capacitance electrode with timesharing.

Although preferred embodiments of the present invention have been described, but those skilled in the art once know basic creative concept, then these embodiments can be made other change and amendment.So, claims are intended to be construed to include preferred embodiment and fall into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification without departing from the spirit and scope of the present invention to the present invention.So, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (16)

1. a capacitance touch structure, is applied to touch screen, it is characterised in that including:

Multiple same layers are arranged and the self-capacitance electrode of arrangement in matrix form of mutually insulated, lay respectively at described from In at least two region that capacitance electrode place film surface comprises；

It is positioned at the area electrodes in each described region, arranges with layer with described self-capacitance electrode, and with described Self-capacitance electrode mutually insulated；Wherein, when described capacitance touch structure is carried out touch control operation, and touch-control When position is the optional position in a region, the capacitance of the area electrodes in described region can change；

A plurality of non-cross the first wire being electrically connected with described self-capacitance electrode；Wherein, at least exist A plurality of described first wire meets: described first wire is electrical connected with at least two self-capacitance electrode, And described at least two self-capacitance electrode each lays respectively in zones of different；

A plurality of non-cross the second wire being electrically connected with described area electrodes, wherein, is positioned at each region Described second wire that interior described area electrodes is electrical connected is different；

It is electrical connected with described first wire and the second wire and for passing through detection in touching sweep time The capacitance variation of each described self-capacitance electrode and area electrodes is to judge the touch detection chip of position of touch.

2. capacitance touch structure as claimed in claim 1, it is characterised in that described self-capacitance electrode Lay respectively at that described self-capacitance electrode place film surface comprises mark off along horizontal direction at least two In individual region, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same string；

Or,

Described self-capacitance electrode lay respectively at that described self-capacitance electrode place film surface comprises along vertically In at least two region that direction marks off, at least two that first wire described with is electrical connected is from electricity Hold electrode and be positioned at same a line.

3. capacitance touch structure as claimed in claim 1, it is characterised in that be positioned at each described district Area electrodes in territory includes multiple points of the gap area between adjacent lines and/or row self-capacitance electrode ?.

4. capacitance touch structure as claimed in claim 3, it is characterised in that described first wire with The described different layer of self-capacitance electrode is arranged, and described second wire is arranged with the different layer of described area electrodes；

Described first wire and the second wire are arranged and non-cross with layer.

5. capacitance touch structure as claimed in claim 1, it is characterised in that described in adjacent two The side that self-capacitance electrode is relative is broken line.

6. capacitance touch structure as claimed in claim 5, it is characterised in that adjacent two are from electricity The side for broken line holding electrode relative is respectively provided with step structure, and two step structure shapes are consistent and mutual Coupling；And/or,

The side for broken line that two adjacent self-capacitance electrodes are relative is respectively provided with concave/convex-shaped structure, and two is concavo-convex Shape planform is consistent and is mutually matched.

7. capacitance touch structure as claimed in claim 1, it is characterised in that described first wire will Described self-capacitance electrode is connected at the frame of described touch screen；Described second wire is by described area electrodes even It is connected at the frame of described touch screen；

Described touch screen also includes: be positioned at the frame of described touch screen and with described first wire and second The periphery cabling that wire is electrical connected；

Described touch detection chip is electrical connected with described periphery cabling by binding post.

8. capacitance touch structure as claimed in claim 7, it is characterised in that described self-capacitance electrode Lay respectively at that described self-capacitance electrode place film surface comprises mark off along horizontal direction at least two In individual region, at least two self-capacitance electrode that first wire described with is electrical connected is positioned at same string；

The frame of described touch screen is shaped as rectangle, the first wire and the extension of the second wire described in each bar Direction is consistent with the short side direction of described frame.

9. an In-cell touch panel, including the upper substrate being oppositely arranged and infrabasal plate, it is characterised in that Also include: the capacitance touch structure as described in as arbitrary in claim 1～8；

Described self-capacitance electrode, area electrodes, the first wire and the second wire be arranged at described upper substrate towards The side of described infrabasal plate, or it is arranged at the described infrabasal plate side towards described upper substrate.

10. In-cell touch panel as claimed in claim 9, it is characterised in that also include: be arranged at institute State the upper substrate side towards described infrabasal plate, or be arranged at the described infrabasal plate side towards described upper substrate Black matrix layer；

Each described self-capacitance electrode, area electrodes, the first wire and the second wire are on described infrabasal plate Orthographic projection be positioned at the orthographic projection on described infrabasal plate of the described black matrix layer.

11. In-cell touch panel as claimed in claim 10, it is characterised in that each described self-capacitance electricity The figure of pole and area electrodes orthographic projection on described infrabasal plate is fenestral fabric, and is positioned at described black square In battle array layer orthographic projection on described infrabasal plate.

12. In-cell touch panel as claimed in claim 10, it is characterised in that described black matrix layer sets It is placed in the described upper substrate side towards described infrabasal plate, described black matrix layer is additionally provided with colorized optical filtering Layer；

Described self-capacitance electrode and area electrodes are arranged with layer, and are positioned at described black matrix layer and described colored filter Between photosphere；Described first wire and the second wire are arranged with layer, and are positioned on described chromatic filter layer, Described first wire is electrically connected with corresponding self-capacitance electrode by the via in described chromatic filter layer, institute State the second wire to be electrically connected with corresponding area electrodes by the via in described chromatic filter layer.

13. In-cell touch panel as claimed in claim 9, it is characterised in that described self-capacitance electrode, Area electrodes, the first wire and the second wire are arranged at the described infrabasal plate side towards described upper substrate；

Described self-capacitance electrode and area electrodes are used as common electrode layer.

14. 1 kinds of display devices, it is characterised in that in including as described in any one of claim 9～13 Embedded touch screen.

15. 1 kinds of display devices, it is characterised in that include external hanging type touch screen, described external hanging type touch screen Including the capacitance touch structure as described in any one of claim 1～8.

16. 1 kinds of scan methods to the display device described in claims 14 or 15, it is characterised in that Including:

In a frame time, timesharing carries out touching scanning and display scanning；Wherein:

In touching sweep time, touch detection chip is by the second wire being connected with each area electrodes and week Limit cabling, timesharing applies to drive signal to each area electrodes；And,

To each area electrodes apply drive signal time in, touch detection chip by with each self-capacitance Electrode be connected the first wire and periphery cabling, timesharing to respective capacitance electrode apply drive signal；Receive each Self-capacitance electrode and the feedback signal of area electrodes, according to the feedback signal of described area electrodes, it is judged that touch-control The region at place, position, and judge position of touch according to the feedback signal of described self-capacitance electrode.