CN101430621B - Touch sensor and touch screen panel - Google Patents
Touch sensor and touch screen panel Download PDFInfo
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- CN101430621B CN101430621B CN2008100926194A CN200810092619A CN101430621B CN 101430621 B CN101430621 B CN 101430621B CN 2008100926194 A CN2008100926194 A CN 2008100926194A CN 200810092619 A CN200810092619 A CN 200810092619A CN 101430621 B CN101430621 B CN 101430621B
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Abstract
A touch sensor includes a first substrate, a second substrate, an inducing electrode and an inducing switch. The second substrate is disposed opposite the first substrate. The inducing electrode is disposed on the first substrate. The inducing switch disposed on the second substrate includes a first switch electrode, a second switch electrode and an active layer, which is disposed between and contacts with the first switch electrode and the second switch electrode. The active layer and the inducing electrode face each other and are separated by a distance. When the first substrate or the second substrate is pressed so that the distance between the inducing electrode and the active layer is changed, the driven inducing electrode induces a channel, corresponding to a change of the distance,on the active layer to electrically connect the first switch electrode to the second switch electrode.
Description
Technical field
The present invention relates to a kind of touch sensor and touch-type display panel thereof, and particularly relate to touch sensor and the touch-type display panel thereof of a kind of utilization because of the induced channel that pressurized produced.
Background technology
The technology of touch-type display panel has been widely used in the electronic installation, in mobile phone, mobile computer, music player (MP3), PDA(Personal Digital Assistant), GPS (Global Position System) (GPS), the super mini-computer portable type electronic products such as (UMPC), all be the application of touch-type display panel.
The know-why of touch-type display panel traditionally mainly is divided into induction modes such as resistance-type and condenser type.The principle of resistance-type induction mode is, covers two-layer transparent electrically-conductive film separately in panel surface, for example is film resistor, when display floater is subjected to external pressure, will makes conductive film touch mutually and produces change in voltage.The principle of capacitive induction mode is, plate the conductive film of multi-layer transparent at display floater, and apply bias voltage at the electrode of leading film film both sides, to produce uniform low voltage electric field, when display floater is subjected to electrostatic induction, for example be the electrostatic induction of finger, this moment, conductive film can produce the level variation of electric capacity.By the locate mode of conductive film, and change the position of being touched to learn according to this change in voltage or level.
In addition, flat (the Planar Systems that reaches of US business, in the technical literature of the optical profile type contact surface plate circuit design of Inc.) being delivered (Active Matrix LCD with Integrated Optical Touch Screen), by light sensing transistor (Photo TFT) being set in the panel pixels array, make driven light sensing transistor under the variation of surround lighting, produce change in voltage, learn the position of being touched with this change in voltage.Yet this optical profile type contact surface plate is extremely huge for the variability influence of surround lighting, that is under the surround lighting of low-light (level), the action sensitivity of this circuit can reduce significantly, and the position that can't judge rightly and be touched.
Summary of the invention
The invention relates to a kind of touch sensor and touch-type display panel thereof, touch sensor is based on the circuit structure of panel, when panel is touched, change the interval of the active layers of an electrode that the is driven switch element corresponding with one, thereby on active layers, induce raceway groove, and produce corresponding induced signal.In addition, by integrating a plurality of touch sensors in display floater,, for example be single touch-type or many touch-types (multi-touch) touch-type display panel to realize touch-type display panel.
According to a first aspect of the invention, propose a kind of touch sensor, comprise one first substrate, one second substrate, an induction electrode and an inductive switch element.The second substrate setting is relative with first substrate.Induction electrode is positioned on first substrate.The inductive switch element is positioned on second substrate, comprises first switch electrode, a second switch electrode, an active layers, a dielectric layer and a control electrode.Active layers is relative with induction electrode and at a distance of a spacing.Active layers, first switch electrode and second switch electrode are covered on the dielectric layer.Control electrode is between second substrate and dielectric layer and relative with active layers.When the pressurized of first substrate or second substrate, when having changed the spacing of induction electrode and active layers, induction electrode that is driven and control electrode induce on active layers with spacing and change corresponding raceway groove, and first switch electrode and second switch electrode are communicated.
According to a second aspect of the invention, propose a kind of touch-type display panel, comprise one first substrate, one second substrate, a pel array and a plurality of touch sensor.The second substrate setting is relative with first substrate.Pel array is arranged between first substrate and second substrate.Each described touch sensor comprises an induction electrode and an inductive switch element.Induction electrode is positioned on first substrate.The inductive switch element is positioned on second substrate, and the inductive switch element comprises first switch electrode, a second switch electrode, an active layers, a dielectric layer and a control electrode.Active layers is relative with induction electrode and at a distance of a spacing.Active layers, first switch electrode and second switch electrode are covered on the dielectric layer.Control electrode is between second substrate and dielectric layer and relative with active layers.Pressurized when first substrate or second substrate, when having changed the spacing of induction electrode and active layers, induction electrode that is driven and control electrode induce on active layers with spacing and change corresponding raceway groove, so that first switch electrode and second switch electrode communicate, and make between first switch electrode that driven and the second switch electrode and produce a corresponding induced signal.
According to a third aspect of the invention we, propose a kind of touch sensor, comprise one first substrate, one second substrate, an induction electrode and a thin-film transistor.The second substrate setting is relative with first substrate.Induction electrode is positioned on first substrate.Thin-film transistor is positioned on second substrate, has one source pole, a drain electrode, an active layers and a grid.Active layers is relative with induction electrode and at a distance of a spacing.Grid is relative with active layers, and when the pressurized of first substrate or second substrate, when having changed the spacing of induction electrode and active layers, induction electrode that is driven and grid induce on active layers with spacing and change corresponding raceway groove, and source electrode and drain electrode are communicated.
According to a forth aspect of the invention, propose a kind of touch-type display panel, comprise one first substrate, one second substrate, a pel array and a plurality of touch sensor.The second substrate setting is relative with first substrate.Pel array is arranged between first substrate and second substrate.Each described touch sensor comprises an induction electrode and a thin-film transistor.Induction electrode is positioned on first substrate.Thin-film transistor is positioned on second substrate, and thin-film transistor has one source pole, a drain electrode, an active layers and a grid.Active layers is relative with induction electrode and at a distance of a spacing.Grid is relative with active layers.Pressurized when first substrate or second substrate, when having changed the spacing of induction electrode and active layers, induction electrode that is driven and control electrode induce on active layers with spacing and change corresponding raceway groove, so that source electrode and drain electrode communicate, and make between the source electrode that driven and the drain electrode and produce a corresponding induced signal.
For foregoing of the present invention can be become apparent, preferred embodiment cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
Figure 1A shows the structure chart according to the touch sensor of first embodiment of the invention.
Figure 1B shows according to the touch sensor of first embodiment of the invention induction when the pressurized logical structure chart of engaging in this profession.
Fig. 2 A shows the circuit diagram according to the touch sensor of first embodiment of the invention.
When showing according to the touch sensor pressurized of first embodiment of the invention, Fig. 2 B produces the circuit diagram of induced signal.
The touch sensor that Fig. 3 A shows Fig. 2 A is applied to the schematic diagram of touch-type display panels.
Fig. 3 B shows the profile according to the touch-type display panels of Fig. 3 A section line AA '.
Fig. 4 shows the circuit diagram according to the touch-type display panels of second embodiment of the invention.
Fig. 5 shows the circuit diagram according to the touch-type display panels of third embodiment of the invention.
Fig. 6 shows the circuit diagram according to the touch-type display panels of fourth embodiment of the invention.
Fig. 7 shows the circuit diagram according to the touch-type display panels of sixth embodiment of the invention.
Fig. 8 shows the circuit diagram according to the touch-type display panels of seventh embodiment of the invention.
The reference numeral explanation
110: touch sensor
120: the first substrates
130: the second substrates
140: induction electrode
150: the inductive switch element
151: the first switch electrodes
152: the second switch electrode
153: active layers
154: dielectric layer
155: control electrode
160: pixel
300: display panels
450,860: thin-film transistor
450s: source electrode
450d: drain electrode
450g: grid
861: the first ends
862: the second ends
863: control end
D1, d2: spacing
Gn, G (n+1): sweep signal
Si: induced signal
VGL: negative-gate voltage signal
Vcom: common voltage
Vdd, Vr, S3: voltage signal
Stv: gate drivers initial signal
X, Y: cabling
Embodiment
First embodiment
Please refer to Figure 1A, it shows the structure chart according to the touch sensor of first embodiment of the invention.Touch sensor 110 comprises one first substrate 120, one second substrate 130, an induction electrode 140 and an inductive switch element 150.Second substrate 130 is provided with relative with first substrate 120.Induction electrode 140 is positioned on first substrate 120.Inductive switch element 150 is positioned on second substrate 130.
Please also refer to Figure 1B, it shows according to the touch sensor of first embodiment of the invention responds to the logical structure chart of engaging in this profession when being pressed.When one of first substrate 120 or second substrate 130 is subjected to pushing of external force, changed the spacing d1 of induction electrode 140 with active layers 153, for example be to be reduced to spacing d2 by the spacing d1 among Figure 1A, at this moment, the induction electrode 140 and the control electrode 155 that are driven induce on active layers 153 with spacing d1 and change corresponding raceway groove (channel), and first switch electrode 151 and second switch electrode 152 are communicated.
Circuit diagram with above-mentioned touch sensor 110 is described as follows earlier.Please also refer to Fig. 2 A and Fig. 2 B, it shows the circuit diagram according to the touch sensor of first embodiment of the invention respectively, and produces the circuit diagram of induced signal during according to the touch sensor pressurized of first embodiment of the invention.Induction electrode 140 is driven in order to receive one first signal, first switch electrode 151 is driven in order to receive from the secondary signal of cabling Y, second switch electrode 152 is driven in order to receive from one the 3rd signal of cabling X, and control electrode (not shown) is driven in order to receive one the 4th signal.When first switch electrode 151 and second switch electrode 152 communicate, can produce a corresponding induced signal Si, or make induced signal Si change, for example be to change on magnitude of voltage, current value or the waveform.Therefore, whether or its variation the generation of this induced signal Si can reflect whether pressurized of this touch sensor 110, and just whether the induction electrode of touch sensor 110 and active layers spacing change.In addition, touch sensor 110 is returned to the not change that state produced of pressurized by pressured state, and the change of spacing increases, and what reflected is the change of induced signal Si, so this situation also can be detected.
Real a work in the example, can utilize the real characteristic of making the circuit of touch sensor 110, make one to read circuit (Readout integrated circuit, Readout-IC) (not shown) reads induced signal Si, and according to induced signal Si, for example be that corresponding electric current changes, to be applied to implement various and sensing touch sensor 110 whether among the correlation analysis of pressurized or depressed position.
In addition, the type of drive of induction electrode 140 and inductive switch element 150, type of drive that also can field-effect transistors is explained.For example, in order to make active layers 153 be produced raceway groove, as n raceway groove (n channel), the type of drive between induction electrode 140 and the control electrode 155 then should design and makes the induction electrode 140 and the level difference of control electrode 155 be enough to make both can induce raceway groove in active layers 153 when a certain spacing.Similarly, if when touch sensor being set producing p raceway groove (p-channel), the consideration of driving aspect also is like this.In a word, as long as can make drive induction electrode 140 and control electrode 155 both when a certain spacing, can induce raceway groove in active layers 153, at this moment, add between first switch electrode 151 and second switch electrode 152 and do suitable driving, for example be to bestow bias voltage or bias current, just can have obtained corresponding induced signal Si from first switch electrode 151 or second switch electrode 152.
Though to induce the function mode of the principle of raceway groove and field-effect transistor different for the command of execution active layers 153 of doing of the induction electrode 140 of touch sensor 110 and inductive switch element 150, but for convenience of description, among below the embodiment and accompanying drawing, we will adopt a circuit element symbol similar to field-effect transistor to represent according to the touch sensor among each embodiment of the present invention.
Second embodiment
Please also refer to Fig. 3 A and Fig. 3 B, the touch sensor that Fig. 3 A shows Fig. 2 A is applied to the schematic diagram of touch-type display panels.Fig. 3 B shows the profile according to the touch-type display panels of Fig. 3 A section line AA '.Display panels 300 comprises one first substrate 120, one second substrate 130, a pel array and a plurality of touch sensor.For the purpose of simplified illustration, Fig. 3 A and Fig. 3 B only show three pixels 160 of a touch sensor 110 and pel array.Second substrate 130 is provided with relative with first substrate 120.Pel array is arranged between first substrate 120 and second substrate 130.Three pixels 160 in Fig. 3 A and Fig. 3 B can be considered three sub-pixels (sub-pixels) of color liquid crystal display panel.
Because touch sensor 110 is arranged between first panel 120 and second panel 130, that is is positioned among the pel array.Therefore, touch sensor can be provided with in the manufacture process of display floater and finish, so can realize that integration touch sensing circuit and pel array are in a touch-type display panel.In a real example of doing, make electrode on the base plate of color light filter of LCD (color filter plate) and implement induction electrode 140, and go up making inductive switch element 150 at thin film transistor base plate (thin-film transistor plate).In addition, in other example, induction electrode 140 can utilize projection (bump) to be realized induction electrode 140.And the characteristic that can consider dielectric material is with the spacing of design induction electrode 140 with inductive switch element 150; And the shape of induction electrode 140, and length and width or the degree of depth also can be with regard to the electrical demands of the characteristic of dielectric material and practical layout and take in.In a word, when real the work, do the consideration of example as above-mentioned reality, allow drive induction electrode 140 and inductive switch element 150 both when a certain spacing, can induce raceway groove in active layers 153.
Now so that (thin-film transistor TFT) realizes that inductive switch element 150 does explanation for example by thin-film transistor.Please refer to Fig. 4, it shows the circuit diagram according to the touch-type display panels of second embodiment of the invention.Thin-film transistor 450 has one source pole 450s, drain electrode 450d, a grid 450g and an active layers (not shown), corresponds to first switch electrode 151, second switch electrode 152, control electrode 155 and the active layers 153 of inductive switch element respectively.Thin-film transistor 450 for example is amorphous silicon membrane transistor (amorphous silicon TFT), polycrystalline SiTFT (poly-silicon TFT).
The start of present embodiment is described as follows.As shown in Figure 4, induction electrode 140 is driven in order to receive one first signal, for example is the voltage signal Vr of an outside.Source electrode 450s is driven in order to receive a secondary signal, for example is in order to trigger a gate drivers initial signal Stv of gate drivers.Drain electrode 450d is driven in order to receive one the 3rd signal, for example is the voltage signal S3 of an outside.Grid 450g is driven in order to receive one the 4th signal, for example is a negative-gate voltage signal VGL who is produced by gate drivers.As source electrode 450s and drain electrode 450d when communicating, can produce a corresponding induced signal Si, drain electrode 450d is in order to output induced signal Si.Therefore, whether or its variation the generation by this induced signal Si can learn whether pressurized of this touch sensor 110.
In addition, at thin-film transistor 450 for example is under the situation of amorphous silicon membrane transistor (amorphous siliconTFT), the active layers of thin-film transistor 450 is because of there being the photoinduction phenomenon to light, so it also can be a grid structure signal layer simultaneously that the grid of thin-film transistor 450 can be a light-shielding structure layer (black matrix), to lower the photoinduction phenomenon.
From present embodiment as can be known, integrating touch sensor with pel array among a touching display floater time, the mode of its layout is also originated relevant with the signal of the driving of touch sensor.Below enumerate several embodiment in the mode of explanation touch sensor in the combination that is subjected to the different driving source.Relatively, also can drive the source according to this and make different circuit layouts, for example be the layout designs of relevant tracks, implements this touching display floater with the foundation embodiments of the invention.
The 3rd embodiment
Please refer to Fig. 5, it shows the circuit diagram according to the touch-type display panels of third embodiment of the invention.Different with second embodiment is that the secondary signal that source electrode 450s is driven for example is the one scan signal Gn that is produced by gate drivers.As source electrode 450s and drain electrode 450d when communicating, can produce an induced signal Si corresponding to this sweep signal Gn and voltage signal S3, drain electrode 450d is in order to output induced signal Si.
Sweep signal Gn is in order to this pixel of activation, and more specifically, sweep signal Gn is in order to drive row of pel array, and for example the n row that is to say, these touch sensors 110 that receive sweep signal Gn can be arranged at this row part of close pel array.Therefore, in the present embodiment, because the source electrode 450s of touch sensor 110 driven by accepting contiguous sweep signal Gn, thus do not need extra distribution receiving the signal of distant place, and can save circuit layout more, can not increase cost yet.
The 4th embodiment
Please refer to Fig. 6, it shows the circuit diagram according to the touch-type display panels of fourth embodiment of the invention.Different with the 3rd embodiment is that the 4th signal that grid 450g is driven for example is the one scan signal G (n+1) that is produced by gate drivers.As source electrode 450s and drain electrode 450d when communicating, can produce an induced signal Si corresponding to this sweep signal Gn and voltage signal S3.
In the present embodiment, source electrode 450s and grid 450g are driven in order to receive by sweep signal Gn that gate drivers produced and G (n+1) respectively; Because sweep signal Gn and G (n+1) in order to drive two row of this pel array, as n row and n+1 row, that is to say that respectively these touch sensors 110 that receive sweep signal Gn and G (n+1) can be arranged between the two adjacent row of pel array.Therefore, in the present embodiment, because the grid 450g of touch sensor 110 driven by accepting contiguous sweep signal G (n+1), thus do not need extra distribution receiving signal than the distant place, and can save circuit layout, can not increase cost yet.
The 5th embodiment
What present embodiment was different with the 4th embodiment is, source electrode 450s and grid 450g are driven in order to receive by sweep signal G (n+1) that gate drivers produced and Gn respectively.Because sweep signal G (n+1) and Gn are respectively in order to drive two row of pel array, therefore, these touch sensors 110 that receive sweep signal G (n+1) and Gn still can be arranged between the two adjacent row of pel array.The advantage of present embodiment is described as the 4th embodiment, source electrode 450s and grid 450g are driven by accepting contiguous sweep signal Gn and G (n+1) respectively, so do not need extra distribution with reception signal at a distance, and can save circuit layout more, can not increase cost yet.
Except sweep signal Gn and G (n+1) do driving source, in other example, also can any two sweep signals that are listed as be used as the drive signal source.
The 6th embodiment
Please refer to Fig. 7, it shows the circuit diagram according to the touch-type display panels of sixth embodiment of the invention.Different with the 4th embodiment is that first signal that induction electrode 140 is driven for example is common voltage Vcom.Common voltage Vcom is former in to drive pel array, makes that by this common voltage Vcom induction electrode 140 is driven.Therefore, in the present embodiment, the induction electrode 140 of touch sensor 110 does not need extra distribution to receive an external voltage signal, so can save circuit layout, can not increase cost yet.
The 7th embodiment
Please refer to Fig. 8, it shows the circuit diagram according to the touch-type display panels of seventh embodiment of the invention.Different with the 3rd embodiment is, the touch sensing circuit also comprises an auxiliary switch element, it for example is a thin-film transistor 860, this thin-film transistor 860 is according to one the 5th signal-selectivity ground conducting, so that the thin-film transistor 860 and source electrode 450s electric property coupling that are driven, thereby source electrode 450s is driven.
As shown in Figure 8, thin-film transistor 860 has one first end 861, one second end 862 and a control end 863.First end 861 is driven in order to receive the 6th signal, for example is the voltage signal Vdd of an outside.Second end 862 is coupled to source electrode 450s.Control end 863 is driven in order to receive the 5th signal, for example is the one scan signal Gn that is produced by gate drivers.This scanning signal Gn for example is this pixel 160 in order to drive row of pel array, that is to say that the source electrode 450s of the touch sensor 110 of contiguous this pixel 160 is driven by the scanning signal Gn that acceptance drives this pixel 160.Furthermore, when part 860 conductings of auxiliary Katyuan, and touch sensor 110 pressurizeds produce raceway groove and make that when source electrode 450s and drain electrode 450d communicated, source electrode 450s that is driven and drain electrode 450d can produce a corresponding induced signal Si, and 450d is in order to export this induced signal Si in drain electrode.Therefore, whether the generation by this induced signal Si, can learn whether pressurized of this touch sensor 110.
Because touch sensor 110 is isolated via thin-film transistor 860 and drive circuit, so only when thin-film transistor 860 conductings, the source electrode 450s of touch sensor 110 just can be driven, that is to say, periodically conducting membrane transistor 860 is so that source electrode 450s is driven sweep signal Gn, and whether learn touch sensor 110 whether pressurized by the generation of this induced signal Si this moment.Therefore, when thin-film transistor 860 is not switched on,, therefore, can reach less electricity consumption even touch sensor 110 pressurizeds can not produce induced signal Si yet.Even so, but because of general user with finger or pointer, touch the time of touch-type display panel and often grow (more than 0.2s), so as long as the above-mentioned time that is not switched on touching time short, the sense of touch that just can not crash is surveyed effect and is not exerted an influence.
Among a plurality of embodiment of the above-mentioned disclosure of the present invention, drain electrode 450d also can not need to be driven by voltage signal S3, and only and as the end points of exporting induced signal Si, and reads this induced signal Si with the circuit that reads of pel array outside.
In addition, among second to the 5th embodiment, secondary signal and the 4th signal are except the disclosed combination of the foregoing description, also other combination, for example secondary signal can be one of them of gate drivers initial signal Stv, negative-gate voltage signal VGL and arbitrary sweep signal Gn, and the 4th signal is wherein another, so also can reach the effect that drives touch sensor 110.Similarly, among the 6th embodiment, drive thin film transistors 450 and 860 the 4th, the 5th and the 6th signal also can be the combination of wherein appointing the two of gate drivers initial signal Stv, negative-gate voltage signal VGL and arbitrary sweep signal Gn.Above-mentioned is that example is done explanation with gate drivers initial signal Stv, negative-gate voltage signal VGL and arbitrary sweep signal Gn, so also is not limited thereto, and also can be other signal that can reach the effect that drives touch sensor.
Moreover, though among several embodiment that above-mentioned touch sensor and pel array are integrated, be example with a pixel and a touch sensor.Yet in other embodiments, touch sensor can have different assembled arrangement modes with pixel, as with certain or different distribution proportions, is arranged in the pel array; And for example, the touch sensor of part can be provided with or extend to beyond the viewing area of pel array, to do other application.For instance, by disposing a plurality of touch sensors between pel array, and detect these touch sensors and touched a plurality of induced signals of being responded to, thus, same asynchronism(-nization) finger or the touch position of object on panel all can be located, so can reach many touch-type display panels.In addition, by detecting the needs of induced signal and practical application, also it can be designed to single touch-type display panel.
In addition, above-mentioned related embodiment is an example in the integration mode of liquid crystal panel, but the technology of other display floater, as long as can between upper and lower base plate, can implement the disclosed touching display floater of the present invention by the construction touch sensor.In addition, the inductive switch element of above-mentioned touching display floater embodiment and auxiliary switch element system are example with the thin-film transistor, so also be not limited thereto, in the technology of other panel, if can implement induction electrode make switch element produce raceway groove can in order to implement as above-mentioned embodiment in the touching display floater.
The touch sensor that the above embodiment of the present invention is disclosed is arranged between first panel and second panel, and therefore, touch sensor can be provided with simultaneously in the manufacture process of display floater and finish, so can realize being integrated in a touch-type display panel of panel technology.In addition, in the disclosed touch-type display panels of the above embodiment of the present invention, touch sensor can pass through gate drivers, as accept contiguous sweep signal and driven, so do not need extra distribution with reception signal at a distance, and can save circuit layout, can not increase cost yet.Also have, in certain embodiments,, make the touch sensor of pressurized optionally produce induced signal, therefore, can reach less electricity consumption by optionally conducting of auxiliary switch element.In addition, because the above embodiment of the present invention utilization is because of induced channel that pressurized produced, and be able to the generation or the position of sensing touching, so do not have the variability influence extremely huge problem of optical profile type contact surface plate, and do not have capacitance type touch-control panel can only be fit to the restriction of energy conducting objects (as finger) touching ability sensing on panel yet for surround lighting.
In sum, though the present invention discloses as above with preferred embodiment, it is not in order to limit the present invention.Those skilled in the art, under the premise without departing from the spirit and scope of the present invention, when doing some changes and modification.Therefore, protection scope of the present invention should be as the criterion with claim of the present invention.
Claims (39)
1. touch sensor comprises:
One first substrate;
One second substrate is provided with relative with this first substrate;
One induction electrode is positioned on this first substrate; And
One inductive switch element is positioned on this second substrate, comprising:
One first switch electrode and a second switch electrode;
One active layers, this active layers is relative with this induction electrode and at a distance of a spacing;
One dielectric layer, wherein this active layers, this first switch electrode and this second switch electrode are covered on this dielectric layer; And
One control electrode, between this second substrate and this dielectric layer and relative with this active layers, wherein, pressurized when this first substrate or this second substrate, when having changed this spacing of this induction electrode and this active layers, this induction electrode that is driven and this control electrode induce on this active layers with this spacing and change corresponding raceway groove, and this first switch electrode and this second switch electrode are communicated.
2. touch sensor as claimed in claim 1, wherein, this first switch electrode and this second switch electrode are positioned at this active layers of the both sides and the cover part of this active layers.
3. touch sensor as claimed in claim 1, wherein this touch sensing circuit also comprises:
One auxiliary switch element, according to a driving signal, optionally conducting is so that this auxiliary switch element that is driven and this first switch electrode electric property coupling are driven this first switch electrode.
4. touch sensor as claimed in claim 1, wherein this auxiliary switch element is a thin-film transistor.
5. touch sensor as claimed in claim 3, wherein this auxiliary switch element is positioned on this second substrate, and this auxiliary switch element has:
One first end;
One second end is coupled to this first switch electrode; And
One control end is in order to receive this driving signal;
Wherein, this auxiliary switch element drives the signal conducting according to this, makes this first end of this auxiliary switch element that is driven be electrically connected to this first switch electrode, and this first switch electrode is driven.
6. touch-type display panel comprises:
One first substrate;
One second substrate is provided with relative with this first substrate;
One pel array is arranged between this first substrate and this second substrate; And
A plurality of touch sensors, each described touch sensor comprises:
One induction electrode is positioned on this first substrate; And
One inductive switch element is positioned on this second substrate, and this inductive switch element comprises:
One first switch electrode and a second switch electrode;
One active layers, this active layers is relative with this induction electrode and at a distance of a spacing;
One dielectric layer, wherein this active layers, this first switch electrode and this second switch electrode are covered on this dielectric layer; And
One control electrode is between this second substrate and this dielectric layer and relative with this active layers;
Wherein, pressurized when this first substrate or this second substrate, when having changed this spacing of this induction electrode and this active layers, this induction electrode that is driven and this control electrode induce on this active layers with this spacing and change corresponding raceway groove, so that this first switch electrode and this second switch electrode communicate, and in this first switch electrode and this second switch electrode at least wherein one when being driven, between this first switch electrode and this second switch electrode, produce a corresponding induced signal.
7. touch-type display panel as claimed in claim 6, wherein, this first switch electrode and this second switch electrode are positioned at this active layers of the both sides and the cover part of this active layers.
8. touch-type display panel as claimed in claim 6, wherein this induction electrode is driven in order to receive one first signal.
9. touch-type display panel as claimed in claim 8, wherein this first signal is a voltage signal.
10. touch-type display panel as claimed in claim 9, wherein this first signal is a common voltage, wherein this common voltage is in order to drive this pel array.
11. touch-type display panel as claimed in claim 6, wherein this first switch electrode is driven in order to receive a secondary signal.
12. touch-type display panel as claimed in claim 11, wherein this second switch electrode is driven in order to receive one the 3rd signal.
13. touch-type display panel as claimed in claim 12, wherein this second switch electrode is in order to export this induced signal.
14. touch-type display panel as claimed in claim 12, wherein the 3rd signal is a voltage signal.
15. touch-type display panel as claimed in claim 11, wherein this secondary signal is a voltage signal.
16. touch-type display panel as claimed in claim 11, wherein this secondary signal is produced by a gate drivers.
17. touch-type display panel as claimed in claim 16, wherein this secondary signal is one of them of a gate drivers initial signal, a negative-gate voltage signal and one scan signal, and this sweep signal is in order to drive row of this pel array.
18. touch-type display panel as claimed in claim 17, the described touch sensor that wherein receives this secondary signal is arranged at this row part of close this pel array.
19. touch-type display panel as claimed in claim 7, wherein this control electrode is driven in order to receive one the 4th signal.
20. touch-type display panel as claimed in claim 19, wherein the 4th signal is a voltage signal or is one of them of the gate drivers initial signal, a negative-gate voltage signal and the one scan signal that are produced by a gate drivers, and this sweep signal is in order to drive row of this pel array.
21. touch-type display panel as claimed in claim 7, wherein this first switch electrode and this control electrode are driven in order to receive by one first sweep signal that a gate drivers produced and one second sweep signal respectively, and this first sweep signal and this second sweep signal are respectively in order to drive two row of this pel array.
22. touch-type display panel as claimed in claim 21, wherein this pel array of being driven of this first sweep signal and this second sweep signal this two classify as adjacent.
23. touch-type display panel as claimed in claim 22, the described touch sensor that wherein receives this first sweep signal and this second sweep signal is arranged at this two row part of close this pel array.
24. touch-type display panel as claimed in claim 7, wherein this touch sensing circuit also comprises:
One auxiliary switch element, according to one the 5th signal, optionally conducting is so that this auxiliary switch element that is driven and this first switch electrode electric property coupling are driven this first switch electrode.
25. touch-type display panel as claimed in claim 24, wherein this auxiliary switch element is a thin-film transistor.
26. touch-type display panel as claimed in claim 24, wherein this auxiliary switch element is positioned on this second substrate, and this auxiliary switch element has:
One first end;
One second end is coupled to this first switch electrode; And
One control end is in order to receive the 5th signal;
Wherein, this auxiliary switch element makes this first end of this auxiliary switch element that is driven be electrically connected to this first switch electrode according to the 5th signal conduction, and this first switch electrode is driven.
27. touch-type display panel as claimed in claim 26, wherein this first end is driven in order to receive one the 6th signal.
28. touch-type display panel as claimed in claim 24, wherein the 5th signal is a voltage signal.
29. touch-type display panel as claimed in claim 28, wherein the 5th signal is produced by a gate drivers.
30. touch-type display panel as claimed in claim 29, wherein the 5th signal is a gate drivers initial signal.
31. touch-type display panel as claimed in claim 30, wherein the 5th signal is a negative-gate voltage signal.
32. touch-type display panel as claimed in claim 29, wherein the 5th signal is the one scan signal, in order to drive row of this pel array.
33. touch-type display panel as claimed in claim 24, wherein this control electrode and this first switch electrode are driven in order to receive by one first sweep signal that a gate drivers produced and one second sweep signal respectively, and this first sweep signal and this second sweep signal are respectively in order to drive two row of this pel array.
34. touch-type display panel as claimed in claim 33, wherein, wherein this pel array of being driven of this first sweep signal and this second sweep signal this two classify as adjacent.
35. touch-type display panel as claimed in claim 34, the described touch sensor that wherein receives this first sweep signal and this second sweep signal is arranged at this two row part of close this pel array.
36. a touch sensor comprises:
One first substrate;
One second substrate is provided with relative with this first substrate;
One induction electrode is positioned on this first substrate; And
One thin-film transistor is positioned on this second substrate, has:
One source pole;
One drain electrode;
One active layers, this active layers is relative with this induction electrode and at a distance of a spacing; And
One grid, relative with this active layers, wherein, pressurized when this first substrate or this second substrate, when having changed this spacing of this induction electrode and this active layers, this induction electrode that is driven and this grid induce on this active layers with this spacing and change corresponding raceway groove, and this source electrode and this drain electrode are communicated.
37. touch sensor as claimed in claim 36, wherein this thin-film transistor is amorphous silicon film transistor or polycrystalline SiTFT.
38. a touch-type display panel comprises:
One first substrate;
One second substrate is provided with relative with this first substrate;
One pel array is arranged between this first substrate and this second substrate; And
A plurality of touch sensors, each described touch sensor comprises:
One induction electrode is positioned on this first substrate; And
One thin-film transistor is positioned on this second substrate, and this thin-film transistor has:
One source pole;
One drain electrode;
One active layers, this active layers is relative with this induction electrode and at a distance of a spacing; And
One grid is relative with this active layers;
Wherein, pressurized when this first substrate or this second substrate, when having changed this spacing of this induction electrode and this active layers, this induction electrode that is driven and this control electrode induce on this active layers with this spacing and change corresponding raceway groove, so that this source electrode and this drain electrode communicate, and when one of them is driven at least, between this source electrode and this drain electrode, produce a corresponding induced signal in this source electrode and this drain electrode.
39. touch-type display panel as claimed in claim 38, wherein this thin-film transistor is amorphous silicon film transistor or polycrystalline SiTFT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/265,766 US20090115741A1 (en) | 2007-11-06 | 2008-11-06 | Touch sensor and touch screen panel |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US98566007P | 2007-11-06 | 2007-11-06 | |
| US60/985,660 | 2007-11-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101430621A CN101430621A (en) | 2009-05-13 |
| CN101430621B true CN101430621B (en) | 2010-09-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100926194A Expired - Fee Related CN101430621B (en) | 2007-11-06 | 2008-04-16 | Touch sensor and touch screen panel |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101430621B (en) |
| TW (1) | TWI364696B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328716A (en) * | 2016-08-26 | 2017-01-11 | 京东方科技集团股份有限公司 | Thin film transistor, method thereby for detecting pressure, and touch device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI386834B (en) * | 2009-06-04 | 2013-02-21 | Taiwan Electrets Electronics Co Ltd | 3-d non-bias electrets multi-touch device |
| CN102033347B (en) * | 2009-09-30 | 2012-12-19 | 群康科技(深圳)有限公司 | In-cell touch liquid crystal display (LCD) |
| TWI493875B (en) * | 2012-07-25 | 2015-07-21 | Egalax Empia Technology Inc | Driving signal generating system |
| TWI501125B (en) * | 2012-11-22 | 2015-09-21 | Innocom Tech Shenzhen Co Ltd | Touch display device |
| CN103885223B (en) * | 2012-12-21 | 2017-04-19 | 上海天马微电子有限公司 | Touch display panel and touch display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1916711A (en) * | 2006-09-14 | 2007-02-21 | 友达光电股份有限公司 | Light sensed touch controlled type liquid crystal display |
| CN101009249A (en) * | 2006-01-27 | 2007-08-01 | 胜华科技股份有限公司 | Film transistor array base board and its making method |
-
2008
- 2008-03-21 TW TW97110190A patent/TWI364696B/en not_active IP Right Cessation
- 2008-04-16 CN CN2008100926194A patent/CN101430621B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101009249A (en) * | 2006-01-27 | 2007-08-01 | 胜华科技股份有限公司 | Film transistor array base board and its making method |
| CN1916711A (en) * | 2006-09-14 | 2007-02-21 | 友达光电股份有限公司 | Light sensed touch controlled type liquid crystal display |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106328716A (en) * | 2016-08-26 | 2017-01-11 | 京东方科技集团股份有限公司 | Thin film transistor, method thereby for detecting pressure, and touch device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101430621A (en) | 2009-05-13 |
| TW200921491A (en) | 2009-05-16 |
| TWI364696B (en) | 2012-05-21 |
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