CN204515745U - Touch structure, substrate, array substrate and display device - Google Patents
Touch structure, substrate, array substrate and display device Download PDFInfo
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- CN204515745U CN204515745U CN201520076999.8U CN201520076999U CN204515745U CN 204515745 U CN204515745 U CN 204515745U CN 201520076999 U CN201520076999 U CN 201520076999U CN 204515745 U CN204515745 U CN 204515745U
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
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- MRNHPUHPBOKKQT-UHFFFAOYSA-N indium;tin;hydrate Chemical compound O.[In].[Sn] MRNHPUHPBOKKQT-UHFFFAOYSA-N 0.000 description 1
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The application discloses touch structure, base plate, array substrate and display device. The touch structure includes: the touch control device comprises a touch control area and a peripheral area surrounding the touch control area, wherein the touch control area comprises a plurality of first touch control electrodes and at least one virtual electrode, and the peripheral area comprises a conductive loop; the first lead comprises a first end part and a second end part, the first end part of the first lead is electrically connected with the first touch electrode, and the second end part of the first lead extends to the peripheral area from one side of the touch area; and a second lead including a first end portion and a second end portion, the first end portion of the second lead being electrically connected to the dummy electrode, and the second end portion of the second lead extending from the other side of the touch area to the peripheral area and being electrically connected to the conductive loop. The touch control structure that this application provided can improve the recognition accuracy of touch position through set up virtual electrode between first touch-control electrode to avoid the lead wire of virtual electrode to walk the intensive district of line, reduced the lead wire load.
Description
Technical field
The application relates to touch-control field, is specifically related to touch-control display field, particularly relates to a kind of touch-control structure, substrate, array base palte and display device.
Background technology
Along with the development of terminal technology, the display screen with touch controllable function has become the main flow screen of all kinds of mobile terminal configuration gradually.In the prior art, usually by independently touch-control module and display module carry out stack combinations and obtain touch-control display panel.Because this display panel ingredient is more, therefore material cost is high and be difficult to slimming.And In-cell touch display panel directly can embed touch controllable function in the inside of display module, make whole screen more frivolous.
In existing embedded touch structure, generally include multiple touch control electrode, and determine the touch location of finger by the change of electric capacity in each touch control electrode.Because other electrodes (such as, the pixel electrode) distance in touch control electrode and display panel is very near, therefore very easily between touch control electrode and other electrodes, form stray capacitance.When carrying out touch control operation, the noise that stray capacitance produces can have a negative impact to touching signals, thus reduces the accuracy of identification of touch location.
Utility model content
Embodiment of the present utility model technical matters to be solved is the problem that the touch-control structure of prior art is lower to position of touch accuracy of identification.
This application provides a kind of touch-control structure, substrate, array base palte and display device.
First aspect, this application provides a kind of touch-control structure, this touch-control structure comprises: Touch Zone and the outer peripheral areas around described Touch Zone, and described Touch Zone comprises multiple first touch control electrode and at least one dummy electrodes, and described outer peripheral areas comprises a conductive loop; First lead-in wire, comprises first end and the second end, and the first end of described first lead-in wire is electrically connected with described first touch control electrode, and the second end of described first lead-in wire extends to described outer peripheral areas from the side of described Touch Zone; And second goes between, comprise first end and the second end, the first end of described second lead-in wire is electrically connected with described dummy electrodes, and the second end of described second lead-in wire extends to described outer peripheral areas from the opposite side of described Touch Zone and is electrically connected with described conductive loop.
Second aspect, this application provides a kind of substrate, and this substrate comprises transparent substrates; Multiple array element, each described array element comprises the touch-control structure that above-mentioned first aspect provides, and the conductive loop of each described array element is electrically connected to each other.
The third aspect, this application provides a kind of array base palte, this array base palte comprises first substrate, sweep trace, the crossing data line that to insulate with described sweep trace, is arranged on pixel electrode that described sweep trace and described data line intersection be arranged in array and the touch-control structure that above-mentioned first aspect provides.
Fourth aspect, this application provides a kind of display device, and this display device comprises the array base palte that the above-mentioned third aspect provides, and the counter substrate opposite disposed with array base palte.
The touch-control structure that the application provides, substrate, array base palte and display device, by arranging dummy electrodes between the first touch control electrode, can reduce the first touch control electrode and other interelectrode stray capacitances, improves the accuracy of identification of touch location.The lead-in wire of dummy electrodes is also extended to outer peripheral areas from the side of Touch Zone and is electrically connected with conductive loop by the application further, makes the lead-in wire of dummy electrodes avoid the opposite side of the intensive Touch Zone of cabling, i.e. the lead-in wire direction of the first touch control electrode.The lead-in wire of such dummy electrodes is no longer subject to limited space, can use thicker cabling, thus reduces lead resistance, reduces load.
Accompanying drawing explanation
By reading the detailed description done non-limiting example done with reference to the following drawings, the other features, objects and advantages of the application will become more obvious:
Fig. 1 is the structural representation of an embodiment of the application's touch-control structure;
Fig. 2 is the structural representation of an embodiment of the application Touch Zone;
Fig. 3 is the structural representation of another embodiment of the application's touch-control structure;
Fig. 4 is the structural representation of another embodiment of the application's touch-control structure;
Fig. 5 is the structural representation of an embodiment of the application's substrate;
Fig. 6 is the structural representation of an embodiment of the application's array base palte;
Fig. 7 is the schematic diagram of Fig. 6 along a kind of cross-section structure in A1-A2 direction;
Fig. 8 is the schematic diagram of Fig. 6 along the another kind of cross-section structure in A1-A2 direction;
Fig. 9 is the partial top view that in Fig. 8, public electrode and pixel electrode facing portion are divided;
Figure 10 is the structural representation of an embodiment of the application's display device;
Figure 11 is the structural representation of another embodiment of the application's display device.
Figure 12 is the first touch control electrode of the application's touch-control structure and the signal timing diagram of dummy electrodes;
Figure 13 the application is from the equivalent circuit diagram of appearance type touch-control structure.
Embodiment
Below in conjunction with drawings and Examples, the application is described in further detail.Be understandable that, specific embodiment described herein is only for explaining relevant utility model, but not the restriction to this utility model.It also should be noted that, for convenience of description, in accompanying drawing, illustrate only the part relevant with relevant utility model.
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the application in detail in conjunction with the embodiments.
Please refer to Fig. 1, it illustrates the structural representation of an embodiment of the application's touch-control structure.In the present embodiment, touch-control structure be one from appearance type touch-control structure.The touch-control structure of this type can form electrod-array on substrate, and each electrode in electrod-array also forms electric capacity with ground, i.e. so-called self-capacitance respectively.When finger touch is to capacitance plate, the electric capacity of finger will be added in screen body capacitance, and screen body capacitance amount is increased.When touching detection, can be each electrode charge in electrod-array from appearance type touch-control structure simultaneously, then detecting each electrode electric capacity before and after touch and whether changing, and the electrode position of capacitance variations being defined as the touch location of finger.
As shown in Figure 1, the touch-control structure of the present embodiment comprises: Touch Zone 11, outer peripheral areas 12, first lead-in wire 13 and the second lead-in wire 14.Particularly, Touch Zone 11, comprises multiple first touch control electrode 111 and at least one dummy electrodes 112, wherein, first touch control electrode 111 is in array distribution, and each first touch control electrode 111 can form self-capacitance respectively with ground, and dummy electrodes 112 is arranged between the first touch control electrode 121.Alternatively, in Touch Zone 11, the region beyond the first touch control electrode 111 all can be set to dummy electrodes 112, and dummy electrodes 112 and the first touch control electrode 111 is kept apart by insulating medium.In Touch Zone, just there is multiple first touch control electrode 111 and a dummy electrodes 112 like this, and dummy electrodes 112 is arranged between the first touch control electrode 111.Whole Touch Zone 11 is provided with outer peripheral areas 12, and in outer peripheral areas 12, includes a conductive loop 121.The touch-control structure 10 of the present embodiment also comprises many first lead-in wires 13, and every bar first goes between and 13 includes first end 131 and the second end 132.The first end 131 of each the first lead-in wire 13 is all electrically connected with first touch control electrode 111, and the second end 132 is all from the side of Touch Zone 11, and namely the downside of Touch Zone in Fig. 1, extends to outer peripheral areas 12.First lead-in wire 13, after extending touch-control structure 10, can be electrically connected with the control circuit (not shown) of touch-control structure 10, thus the touch information that the first touch control electrode 111 receives can be transferred to control circuit.The touch-control structure 10 of the present embodiment also includes at least one the second lead-in wires 14, and it comprises first end 141 and the second end 142.The first end 141 of the second lead-in wire 14 is electrically connected with dummy electrodes 112, and the second end 142 extends to outer peripheral areas 12 from the opposite side of Touch Zone 11, and is electrically connected with conductive loop 121.In the present embodiment, the opposite side of above-mentioned Touch Zone 11 and the side of above-mentioned Touch Zone 11 are the not homonymy of Touch Zone, and such as, when the side of Touch Zone 11 is the below of Touch Zone 11 in Fig. 1, the opposite side of Touch Zone 11 can be the left side of Touch Zone in Fig. 1.
In an optional implementation of the present embodiment, touch-control structure can also be a mutual tolerance type touch-control structure.Touch Zone in the touch-control structure of this type needs on the conductive layer of two mutual insulatings, forms transverse electrode and longitudinal electrode respectively.Mutual tolerance and the difference certainly held, so just form electric capacity in the place intersected at horizontal and vertical two arrays of electrodes, also namely this two arrays of electrodes constitutes the two poles of the earth of electric capacity respectively.When finger touch is to the Touch Zone of mutual tolerance type touch-control structure, the coupling between the electrode of two near touch point can be had an impact, thus change the electric capacity between electrode.When touching detection, horizontal electrode sends pumping signal successively, and longitudinal all electrodes Received signal strength simultaneously, can obtain the capacitance size of all horizontal and vertical electrodes intersect points, i.e. the capacitance size of the two dimensional surface of whole touch-screen like this.When point close to time, local electric capacity can be caused to reduce.According to the variable quantity data of electric capacity in plane, just can directly obtain touch point coordinate, the position of touch namely pointed.
Particularly, with further reference to Fig. 2, it illustrates the structural representation of an embodiment of the application Touch Zone.As shown in Figure 2, the Touch Zone 21 of the mutual tolerance type touch-control structure of the present embodiment comprises: multiple first touch control electrode 211, at least one dummy electrodes 212 and multiple second touch control electrode 26.Wherein, multiple first touch control electrode 221 is transverse electrode, and longitudinally distributes in Touch Zone 21, and dummy electrodes 212 is arranged between the first touch control electrode 211.Alternatively, in Touch Zone 21, the region beyond the first touch control electrode 211 all can be set to dummy electrodes 212, and dummy electrodes 212 and the first touch control electrode 211 is kept apart by insulating medium.In Touch Zone, just there is multiple first touch control electrode 221 and multiple dummy electrodes 222 like this, and multiple dummy electrodes 222 can be connected by bridge.Multiple second touch control electrode 213 is longitudinal electrode, is arranged on the conductive layer that insulate with the first touch control electrode 211.Like this, multiple second touch control electrode 213 can insulate crossing with multiple first touch control electrode 211, and forms mutual capacitance in the place intersected.Each first touch control electrode is connected with one first lead-in wire 22, every bar first goes between and 22 all comprises first end 221 and the second end 222.The first end 221 of each the first lead-in wire 22 is all electrically connected with first touch control electrode 211, and the second end 222 all extends to outer peripheral areas (not shown) from the side of Touch Zone 21.The touch information that first touch control electrode 211 receives can be transferred to control circuit (not shown) by the first lead-in wire 22.
In the present embodiment, although the principle of touch-control sensing can be different, touch-control structure all arranges dummy electrodes between the first touch control electrode, can reduce the first touch control electrode and other interelectrode stray capacitances, improves the accuracy of identification of touch location.And the first lead-in wire connecting the first touch control electrode extends to outer peripheral areas from the side of Touch Zone, and the second lead-in wire of dummy electrodes all extends to outer peripheral areas from the opposite side of Touch Zone and is electrically connected with conductive loop, make the lead-in wire of dummy electrodes all can avoid cabling close quarters.The lead-in wire of such dummy electrodes is no longer subject to limited space, can use thicker cabling, thus reduces lead resistance, reduces load.
With further reference to Fig. 3, it illustrates the structural representation of another embodiment of the application's touch-control structure.The touch-control structure of the present embodiment comprises: Touch Zone 31, outer peripheral areas 32, first lead-in wire 33 and the second lead-in wire 34.In the present embodiment, structure, the position of Touch Zone 31 and the first lead-in wire 33 are all identical with the appropriate section of the touch-control structure in Fig. 1, do not repeat them here.In the present embodiment, the first lead-in wire 33 extends to outer peripheral areas 32 from the below of Touch Zone 31, and the second lead-in wire 34 also can extend to outer peripheral areas 32 from the below of Touch Zone 31, and is electrically connected with conductive loop 321.Particularly, the first end 341 of the second lead-in wire 34 is electrically connected with dummy electrodes 312, the second end 342 is electrically connected with conductive loop 321, because the underlying circuit in Touch Zone 31 is comparatively complicated, the not shown conductive loop be positioned at below Touch Zone 31 in Fig. 3, and the annexation of the second end represented by dashed line 342 and conductive loop 321.In the present embodiment, by arranging dummy electrodes between the first touch control electrode, the first touch control electrode and other interelectrode stray capacitances can be reduced, improving the accuracy of identification of touch location.
With further reference to Fig. 4, it illustrates the structural representation of another embodiment of the application's touch-control structure.The touch-control structure of the present embodiment comprises: Touch Zone 41, outer peripheral areas 42, first lead-in wire 43 and the second lead-in wire 44.In the present embodiment, structure, the position of Touch Zone 41 and the first lead-in wire 43 are all identical with the appropriate section of the touch-control structure in Fig. 1, do not repeat them here.In the present embodiment, the first lead-in wire 43 extends to outer peripheral areas 42 from the below of Touch Zone 41, and many second lead-in wires 44 extend to outer peripheral areas 42 from the top of Touch Zone 41, and are electrically connected with conductive loop 421.Alternatively, the first lead-in wire 43 can be positioned on different conductive layers from the first touch control electrode 411, and is electrically connected by via 45.In the prior art, conventional touch-control structure is all for coordinating the display module of narrow side to use, and therefore, the outer peripheral areas outside the side of about 41 two, Touch Zone also can be narrow.Meanwhile, the first lead-in wire 434 of the first touch control electrode 411 is connected all by the below of Touch Zone 41.Moreover because dummy electrodes and the overlapping place of touch control electrode cabling can produce stray capacitance, therefore in order to reduce stray capacitance, it is less that the width of the dummy electrodes at overlapping place can be arranged.Such as shown in Fig. 4, will be narrow at the vertical width of that a part of dummy electrodes 412A at dummy electrodes 412 and the first overlapping place of touch control electrode 411, and the width of that a part of dummy electrodes 412B at non-overlapping place is obviously wider.Now, if the second lead-in wire laterally draws (the right and left), dummy electrodes load can be caused comparatively large, and distribution of resistance is uneven, causes display bad.If the second lead-in wire draws (such as, the touch-control structure in Fig. 3) from below, because the second lead-in wire and the first lead-in wire are all drawn from the below of Touch Zone, and the quantity of the first lead-in wire is more, cabling is intensive, and the second lead-in wire therefore can be caused to be difficult to wiring, and cabling is comparatively thin, load is larger.Now, the outer peripheral areas area only above Touch Zone 32 is comparatively large, cabling is less, is suitable for arranging the second lead-in wire.Therefore, the present embodiment can from the opposite side of Touch Zone, and namely the top of Touch Zone arranges much thicker the second lead-in wires 44 for connecting dummy electrodes 412 and conductive loop 421.Thus while the stray capacitance reducing dummy electrodes and the overlapping place of touch control electrode cabling, increase the trace width of the second lead-in wire, reduce resistance.
In an optional implementation of the present embodiment, dummy electrodes 412 can also be split into multiple part, can be provided with one or more first touch control electrode 411 in each part region, and dummy electrodes 412 is all between the first touch control electrode 411.Now, multiple parts of dummy electrodes 412 can be electrically connected with conductive loop respectively by the second lead-in wire.It should be noted that, the concrete patterns that the first touch control electrode and dummy electrodes are formed, can by user according to actual conditions sets itself, the application does not limit this.
In an optional implementation of the present embodiment, the first touch control electrode 411 is positioned at same layer with dummy electrodes 412 and adopts same material.Particularly, the material of the first touch control electrode 411 and dummy electrodes 412 can be transparent conductive material, such as, in tin indium oxide, indium zinc oxide a kind of or the combination of the two.When making first touch control electrode 411 and dummy electrodes 412, above-mentioned transparent conductive material first can be used to form a conductive layer, then on this conductive layer, form certain electrode pattern by etching etc. processing step.By this electrode pattern, the first touch control electrode 411 and dummy electrodes 412 just can be obtained.
In an optional implementation of the present embodiment, the shape of conductive loop 421 itself can not be formed close-shaped, and it can be Semicircular curve or broken line etc.
In an optional implementation of the present embodiment, conductive loop 421 is metallic conduction ring.In the present embodiment, the effect of conductive loop 421 is the interference getting rid of or suppress electrostatic field.Therefore, conductive loop 421 can be such as, by common metal material, gold, silver, copper etc., the metallic conduction ring made.When the metallic conduction ring 421 of ground connection encloses charged Touch Zone 41 completely, when insulating with the first touch control electrode 411 again simultaneously, just can eliminate the electrostatic induction phenomenon between other conductors outside the first touch control electrode 321 and metallic conduction ring 421, thus significantly decrease the adverse effect of external electrical field to Touch Zone 41.Further, the area of dummy electrodes 412 is comparatively large, when it connects the sparking electrode of conductive loop 421 as electrostatic, can improve the electrostatic discharge performance of screen body further.
In an optional implementation of the present embodiment, conductive loop 421 comprises Part I 421A and Part II 421B, wherein, the width of Part I 421A is greater than the width of Part II 421B, and Part I and second go between 44 the second end 442 be electrically connected.In the present embodiment, conductive loop 421 can be made up of two parts, i.e. Part I 421A and Part II 421B, and the width of Part I 421A is greater than the width of Part II 421B.That is, the width of whole metallic conduction ring 421 is not uniform, and situation about allowing in space exists, and can increase the width of a part of metallic conduction ring 421, thus reduce resistance further.
Alternatively, in the present embodiment, the Part I 421A of conductive loop 421 can parallel with the transverse edge of Touch Zone 41.That is, in conductive loop 421, a thicker part is parallel to the transverse edge of Touch Zone 41.For the touch-control structure shown in Fig. 4, because alleviate the load between cabling and the first touch control electrode, first touch control electrode and cabling crossover position place have longitudinally carves seam in a large number, so the first touch control electrode lateral connection can only rely on a bit of conducting medium to carry out, its resistance connects much larger than relying on the longitudinal direction of metal routing.In the display stage, if the first touch control electrode is multiplexed with public electrode, due to when relying on public electrode itself to conduct electricity, easily cause the uneven of distribution of resistance.Therefore, also very easily cause display brightness uneven, form various vestige, namely cause display Mura phenomenon.In the present embodiment, being parallel to the width of the part conductive loop 421A of the transverse edge of Touch Zone 41 by increasing, the lateral connection resistance gone between can be reduced, thus improve the display problem of non-uniform that lateral resistance causes.
In an optional implementation of the present embodiment, conductive loop 421 is connected with Electro-static Driven Comb (Electro-Static discharge, ESD) circuit.In the present embodiment, owing to including multiple first touch control electrode 441 in Touch Zone 41, and each first touch control electrode 441 needs to be electrically connected with control circuit (not shown) by the first lead-in wire 43, therefore in touch area, walk line position also very nervous, ESD circuit cannot be set between the first touch control electrode 411.The present embodiment can arrange ESD circuit in outer peripheral areas 42; and one end of ESD circuit is electrically connected with conductive loop 421; the other end with need to carry out other electrodes of electrostatic protection (such as; the pixel electrode of display section) electrical connection, thus the antistatic capacity of touch-control structure can be optimized further.
Based on the above-mentioned touch-control structure provided, present invention also provides a kind of substrate.With further reference to Fig. 5, this substrate comprises: transparent substrates 51 and arrange with transparent substrates 51 on multiple array elements 52, Fig. 5 shown in for transparent substrates 51 there being the array element of a 2X2.Each array element 52 comprises the touch-control structure described by above-mentioned any embodiment, and the conductive loop of each array element is electrically connected to each other.Particularly, when manufacturing touch base plate, in a larger-size transparent substrates 51, multiple array element 52 can be made simultaneously.Touch-control structure in each array element 52 comprises Touch Zone 521 and the conductive loop 522 around Touch Zone 521, and each conductive loop 522 is electrically connected to each other.Then separated by each array element by line of cut A1-A2 and B1-B2, just can obtain multiple array base palte, now can there is a part for conductive loop 522 in the edge of array base palte.
Based on the above-mentioned touch-control structure provided, present invention also provides a kind of array base palte.It illustrates the structural representation of an embodiment of the application's array base palte with further reference to Fig. 6-8, Fig. 6, Fig. 7 is the schematic diagram of Fig. 6 along a kind of cross-section structure in A1-A2 direction, and Fig. 8 is the schematic diagram of Fig. 6 along the another kind of cross-section structure in A1-A2 direction.
As shown in Figure 6, array base palte in the present embodiment comprises the sweep trace S be arranged on first substrate, the data line D that S-phase hands over of insulating with sweep trace, be arranged on pixel electrode 61 that sweep trace S and data line D intersection be arranged in array and the touch-control structure described by above-mentioned any embodiment, wherein, each pixel electrode 61 can be controlled by a thin film transistor (TFT) (Thin filmtransistor, TFT).Particularly, the grid of each TFT connects sweep trace S, source electrode connection data line D, and drain electrode is connected to pixel electrode 61.Sweep trace S is for the switch of control TFT, and data line D is used for when TFT opens, and is carried in by driving voltage on pixel electrode 61, to drive the liquid crystal molecule within the scope of this pixel electrode to deflect, thus carries out image display.The first touch control electrode 62 and the dummy electrodes 63 between the first touch control electrode 62 is also comprised in the array base palte that the present embodiment provides.In the optional implementation of one, as shown in Figure 7, the TFT in the array base palte of the present embodiment drives layer 64, first touch control electrode 62 and pixel electrode 61 can be set in turn on first substrate 65.In the optional implementation of another kind, as shown in Figure 8, the TFT in the array base palte of the present embodiment drives layer 64, pixel electrode 61 and the first touch control electrode 62 can be set in turn on first substrate 65.In figures 7 and 8, TFT drives in layer 64 and has included sweep trace S and data line D; Insulation course 66 is provided with between first touch control electrode 62 and pixel electrode 61; Dummy electrodes 63 and the first touch control electrode 62 are all positioned at same layer and are multiplexed with public electrode in the display stage.
As can be seen from Fig. 7 and Fig. 8, the difference of the two is mainly that the position of the first touch control electrode 62 and pixel electrode 61 there occurs exchange, and therefore, its planimetric map can be as shown in Figure 6.In the array base palte shown in Fig. 7, the first touch control electrode 62 drives between layer 64 at pixel electrode 61 and TFT, thus defines middle public electrode (Middle COM) structure.In the array base palte shown in Fig. 8, the first touch control electrode 62 is positioned on pixel electrode 61, i.e. the top of array base palte, thus defines top public electrode (Top COM) structure.No matter it should be noted that, be Middle COM structure or Top COM structure, and in public electrode and the just right part of pixel electrode, at least one in both public electrode and pixel electrode has carves seam.For the part A that public electrode in Fig. 8 (i.e. dummy electrodes 62) and pixel electrode 61 are just right, its vertical view can reference diagram 9.As shown in Figure 9, dummy electrodes 62 is positioned on pixel electrode 61, and dummy electrodes 62 has seam at quarter.
Alternatively, in above-mentioned two kinds of structures, the first lead-in wire 68 connecting the first touch control electrode 64 all can be positioned at same conductive layer with pixel electrode 61, and be electrically connected with the first touch control electrode 62 by via 67, the cabling in Touch Zone is obviously reduced, avoids after dredging before cabling in Touch Zone close, easily there is the bad phenomenon of nicking, reduce the capacitor noise produced between finger and cabling simultaneously, and effective touch-control area can be increased, thus improve the touch-control performance of touch-control structure.
Based on the above-mentioned array base palte provided, present invention also provides a kind of display device.With further reference to Figure 10, it illustrates the structural representation of an embodiment of the application's display device.In the present embodiment, display device comprises array base palte 101 described in above-mentioned any embodiment and the counter substrate 102 opposite disposed with array base palte 101, is provided with a liquid crystal layer 103 between array base palte 101 and counter substrate 102.Counter substrate 102 can comprise second substrate 1021 and color rete 1022, and color rete 1022 is arranged at second substrate 1021 towards liquid crystal layer 103 side.In an optional implementation of the present embodiment, counter substrate 1022 can also comprise a screen layer 1023, and it is arranged at second substrate 1021 liquid crystal layer 103 side dorsad, and screen layer 1023 can be electrically connected with the conductive loop in touch-control structure.Conductive loop is provided with tie point at the step place of array base palte, and silver slurry can be used conductive loop and screen layer 1023 to be coupled together.
With further reference to Figure 11, it illustrates the schematic diagram of another embodiment of the application's display device.In the present embodiment, display device 111 can be a panel computer, and it comprises the array base palte 112 described in above-mentioned any embodiment.User can use pointer 113 or finger to complete touch control operation on array base palte 112.
Further, the display device that the present embodiment provides also can comprise one drive circuit, and it is in the touch-control stage, can apply a pulse signal in the first touch control electrode, so that the touch location pointed by the first touch control electrode detection.In the display stage, first touch control electrode and dummy electrodes can be re-used public electrode, namely driving circuit can apply a constant voltage signal in the first touch control electrode and dummy electrodes, liquid crystal molecule can be deflected under the acting in conjunction of public electrode and pixel electrode, thus realize Presentation Function.
Alternatively, the pulse signal applied in the touch-control stage can to show the constant voltage signal of stage applying for benchmark.With further reference to Figure 12, the signal timing diagram that the first touch control electrode that it illustrates the application's touch-control structure is connected with dummy electrodes.As shown in figure 12, the T1 time period represents the display stage, and the T2 time period represents the touch-control stage, and that the first touch control electrode and dummy electrodes are connected within the T1 time period is constant voltage signal V1, what connect within the T2 time period is using constant voltage signal V1 as valley, using the pulse signal of V2 as peak value.
With further reference to Figure 13, it illustrates the equivalent circuit diagram of the application from appearance type touch-control structure.As shown in figure 13, for from appearance type touch-control structure, the principle of carrying out touch control detection within the T2 time period is described further.Particularly, in the touch-control stage, can first open switch S 1 and S2, to be that electric capacity C1 charges by drive end D1, now the capacitance of electric capacity C1 is the ground capacitance value of the first touch control electrode; And then switch S 1 is closed, if now finger comes close to or in contact with touch-control structure, the capacitance of the electric capacity C1 of finger touch position will be caused to change.The capacitance variation situation of electric capacity C1 can be detected by test side D2, and analyze thus and whether have touch control operation to occur.
Because touch controllable function to be embedded among the public electrode of liquid crystal pixel by array base palte in the above two embodiments, namely to embedded in touch sensor function in display device inside, thus enable display device become more frivolous.And owing to arranging dummy electrodes between the first touch control electrode of touch-control structure, the first touch control electrode and other interelectrode stray capacitances can be reduced, improve the accuracy of identification of touch location.Also further the lead-in wire of dummy electrodes is all connected with the conductive loop outside Touch Zone along second direction simultaneously, makes the lead-in wire of dummy electrodes all can avoid the intensive first direction of cabling.The lead-in wire of such dummy electrodes is no longer subject to limited space, can use thicker cabling, thus reduces lead-in wire load, decreases the power attenuation of display device.
More than describe and be only the preferred embodiment of the application and the explanation to institute's application technology principle.Those skilled in the art are to be understood that, utility model scope involved in the application, be not limited to the technical scheme of the particular combination of above-mentioned technical characteristic, also should be encompassed in when not departing from the utility model design, other technical scheme of being carried out combination in any by above-mentioned technical characteristic or its equivalent feature and being formed simultaneously.The technical characteristic that such as, disclosed in above-mentioned feature and the application (but being not limited to) has similar functions is replaced mutually and the technical scheme formed.
Claims (15)
1. a touch-control structure, comprising:
Touch Zone and the outer peripheral areas around described Touch Zone, described Touch Zone comprises multiple first touch control electrode and at least one dummy electrodes, and described outer peripheral areas comprises a conductive loop;
First lead-in wire, comprises first end and the second end, and the first end of described first lead-in wire is electrically connected with described first touch control electrode, and the second end of described first lead-in wire extends to described outer peripheral areas from the side of described Touch Zone; And
Second lead-in wire, comprises first end and the second end, and the first end of described second lead-in wire is electrically connected with described dummy electrodes, and the second end of described second lead-in wire extends to described outer peripheral areas from the opposite side of described Touch Zone and is electrically connected with described conductive loop.
2. touch-control structure according to claim 1, is characterized in that, described touch-control structure also comprises:
Multiple second touch control electrode, described second touch control electrode insulate crossing with described multiple first touch control electrode.
3. touch-control structure according to claim 1, is characterized in that, the side of described Touch Zone and the opposite side opposite side each other of described Touch Zone.
4. touch-control structure according to claim 1, is characterized in that, described dummy electrodes is arranged between described first touch control electrode.
5. touch-control structure according to claim 1, is characterized in that, described conductive loop is metallic conduction ring.
6. touch-control structure according to claim 5, it is characterized in that, described conductive loop comprises Part I and Part II, and the width of described Part I is greater than the width of described Part II, and described Part I is electrically connected with the described second the second end gone between.
7. touch-control structure according to claim 1, is characterized in that, described conductive loop is provided with electrostatic and prevents circuit.
8. touch-control structure according to claim 1, is characterized in that, described first touch control electrode and described dummy electrodes are positioned at same layer and adopt same material.
9. a substrate, comprising:
Transparent substrates;
Multiple array element, each described array element comprises the touch-control structure as described in any one of claim 1 to 8, and the conductive loop of each described array element is electrically connected to each other.
10. an array base palte, comprise first substrate, sweep trace, the crossing data line that to insulate with described sweep trace, be arranged on pixel electrode that described sweep trace and described data line intersection be arranged in array and the touch-control structure as described in any one of claim 1 to 8.
11. array base paltes according to claim 10, is characterized in that, described first lead-in wire is positioned at same layer with described pixel electrode, and is electrically connected with described first touch control electrode by via.
12. array base paltes according to claim 10, is characterized in that, described first touch control electrode and dummy electrodes are multiplexed with public electrode in the display stage.
13. 1 kinds of display device, comprise array base palte as described in any one of claim 10 to 12 and with as described in the opposite disposed counter substrate of array base palte.
14. display device according to claim 13, it is characterized in that, described display device also comprises driving circuit, and described driving circuit provides constant voltage signal in the display stage for described first touch control electrode and dummy electrodes, the pulse signal that to provide with described constant voltage signal be benchmark in the touch-control stage.
15. display device according to claim 13 or 14, it is characterized in that, described counter substrate comprises screen layer, and described screen layer is electrically connected with described conducting ring.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520076999.8U CN204515745U (en) | 2015-02-03 | 2015-02-03 | Touch structure, substrate, array substrate and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520076999.8U CN204515745U (en) | 2015-02-03 | 2015-02-03 | Touch structure, substrate, array substrate and display device |
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| CN204515745U true CN204515745U (en) | 2015-07-29 |
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| CN104615322A (en) * | 2015-02-03 | 2015-05-13 | 上海天马微电子有限公司 | Touch structure, substrate, array substrate and display device |
| CN105573556A (en) * | 2016-01-29 | 2016-05-11 | 上海中航光电子有限公司 | Touch-control display panel |
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| CN106959560A (en) * | 2017-03-25 | 2017-07-18 | 厦门天马微电子有限公司 | Array base palte, touch-control display panel and touch control display apparatus |
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| CN108984023B (en) * | 2018-06-22 | 2021-08-10 | 武汉天马微电子有限公司 | Touch display panel and touch display device |
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| CN104615322A (en) * | 2015-02-03 | 2015-05-13 | 上海天马微电子有限公司 | Touch structure, substrate, array substrate and display device |
| WO2017028492A1 (en) * | 2015-08-14 | 2017-02-23 | 京东方科技集团股份有限公司 | Touch control substrate, manufacturing method thereof, drive method and touch display device |
| CN105573556A (en) * | 2016-01-29 | 2016-05-11 | 上海中航光电子有限公司 | Touch-control display panel |
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| CN106201148A (en) * | 2016-07-29 | 2016-12-07 | 厦门天马微电子有限公司 | Touch-control display panel and touch control display apparatus |
| CN107665912A (en) * | 2016-07-29 | 2018-02-06 | 三星显示有限公司 | Display device and its manufacture method |
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| CN108984023B (en) * | 2018-06-22 | 2021-08-10 | 武汉天马微电子有限公司 | Touch display panel and touch display device |
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