CN104020881A - Touch display panel, driving method thereof and display device - Google Patents
Touch display panel, driving method thereof and display device Download PDFInfo
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- CN104020881A CN104020881A CN201410234414.0A CN201410234414A CN104020881A CN 104020881 A CN104020881 A CN 104020881A CN 201410234414 A CN201410234414 A CN 201410234414A CN 104020881 A CN104020881 A CN 104020881A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The embodiment of the invention discloses a touch display panel, a driving method thereof and a display device, and relates to the field of display. The touch display panel, the driving method of the touch display panel and the display device can solve the problem that impedance at the display stage is too large due to public electrode dividing design, avoid the bad phenomena such as cross talk, and improve the display effect. The touch display panel comprises a plurality of strip-shape electrodes which are arranged at intervals, and the strip-shaped electrodes are formed by mutually connecting public electrodes in one or more rows of pixels. At the display stage, the strip-shaped electrodes are used for loading public voltage and play the role of the public electrodes; at the touch detection stage, the strip-shaped electrodes are used for loading touch driving voltage and play the role of touch driving electrodes; at the display stage, the ends, located on the same side, of the strip-shaped electrodes are mutually connected and the ends, located on the other side, of the strip-shaped electrodes are also mutually connected; at the touch detection stage, the strip-shaped electrodes are mutually disconnected and become independent electrodes which are not mutually connected.
Description
Technical field
The present invention relates to demonstration field, relate in particular to a kind of touch display panel and driving method thereof, display device.
Background technology
Touch display screen development rapidly, current main-stream product has all adopted the structural design of external touch screen (Add on), but traditional Add on touch-screen, integrated model is thick and heavy, cost is higher, along with the thinning demand of consumer to display, embedded (In Cell) liquid crystal display becomes the direction that touches an important development in demonstration field.
In only possessing the liquid crystal panel of Presentation Function, public electrode 10 covers the viewing area (A/A region) of whole display panel conventionally, and public electrode 10 is the transparency conducting layer of a whole layer, as shown in Figure 1.And in embedded liquid crystal panel, touching drive electrode Tx and public electrode adopts the mode that timesharing drives to share, this just requires public electrode must be divided into N section disconnected absolute electrode 11 (N is for touching the total quantity of drive electrode) each other, each section of absolute electrode 11 is one in the touch control detection stage and touches drive electrode, as shown in Figure 2.Particularly, those absolute electrodes 11 load common electric voltage in the demonstration stage, play public electrode effect; In the touch stage, load and touch driving voltage, work the drive electrode effect that touches, touch drive electrode and touch sensible electrode (being RX, not shown) match to realize and touch measuring ability.
But inventor finds public electrode, cut apart the negative consequence of design and be, when showing the stage, the impedance of public electrode is increased to N times of common display screen (only possessing Presentation Function display screen), the delay of public voltage signal Vcom increases, cause crosstalk (cross talk) etc. bad, affect display effect.
Summary of the invention
Embodiments of the invention provide a kind of touch display panel and driving method thereof, display device, can solve because public electrode is cut apart the excessive problem of demonstration stage impedance that design causes, avoid crosstalking (cross talk) etc. bad, improve display effect.
Achieve the above object, embodiments of the invention adopt following technical scheme:
A touch display panel, comprising: a plurality of spaced strip shaped electric poles, and the public electrode of described strip shaped electric poles in a line or multirow pixel interconnects and forms; Described strip shaped electric poles is used for loading common electric voltage in the demonstration stage, play public electrode effect, in the touch control detection stage, described strip shaped electric poles is used for loading touch driving voltage, work the drive electrode effect that touches, in the demonstration stage, described strip shaped electric poles is positioned at one end mutual conduction of the same side, and the one end that is simultaneously positioned at opposite side is mutual conduction also; In the touch control detection stage, between described strip shaped electric poles, mutually disconnect, become disconnected absolute electrode each other.
Particularly, adjacent strip shaped electric poles is positioned at one end of the same side by switching tube mutual conduction, is positioned at one end of opposite side also by switching tube mutual conduction simultaneously; Described switching tube has first utmost point, second utmost point and control end, and first utmost point of described switching tube and second utmost point are connected to respectively one end that adjacent two described strip shaped electric poles are positioned at the same side, and control end is connected to control signal wire.
Alternatively, be positioned at the strip shaped electric poles at described touch display panel edge, at least one end in its two ends is connected with public voltage signal line by switching tube, first utmost point of described switching tube is connected to described public voltage signal line, second utmost point is connected to one end of strip shaped electric poles, and control end is connected to described control signal wire.
Preferably, described touch display panel also comprises: common electric voltage output terminal, is arranged on the edge of described touch display panel; On described touch display panel, the strip shaped electric poles of the most close described common electric voltage output terminal place one side, is connected with described public voltage signal line by described switching tube.
Preferably, described switching tube is arranged on the edge of described touch display panel.
Alternatively, described switching tube is triode, or is thin film transistor (TFT).
The embodiment of the present invention also provides a kind of display device, comprising: the touch display panel described in any one.
On the other hand, the embodiment of the present invention also provides a kind of driving method of touch display panel, described in described touch display panel, touch display panel comprises a plurality of spaced strip shaped electric poles, the public electrode of described strip shaped electric poles in a line or multirow pixel interconnects and forms, described driving method comprises: in the demonstration stage, described strip shaped electric poles is positioned at one end mutual conduction of the same side, and the one end that is simultaneously positioned at opposite side is mutual conduction also, then loads common electric voltage; In the touch control detection stage, between described strip shaped electric poles, mutually disconnect, become disconnected absolute electrode each other, then load line by line and touch driving signal, complete the scanning of touch signal.
On the other hand, the embodiment of the present invention also provides the driving method of the second touch display panel, on described touch display panel, adjacent strip shaped electric poles is positioned at one end of the same side by switching tube mutual conduction, is positioned at one end of opposite side also by switching tube mutual conduction simultaneously; Described switching tube has first utmost point, second utmost point and control end, and first utmost point of described switching tube and second utmost point are connected to respectively one end that adjacent two described strip shaped electric poles are positioned at the same side, and control end is connected to control signal wire.This driving method adopts the mode that timesharing drives to share strip shaped electric poles, specifically comprise: in the demonstration stage, control signal wire output high level opening switch pipe, make strip shaped electric poles be positioned at one end mutual conduction of the same side, the one end that is simultaneously positioned at opposite side is mutual conduction also, and then the signal loading on public voltage signal line is to described strip shaped electric poles; In the touch control detection stage, described control signal wire output low level is turn-offed described switching tube, makes mutually to disconnect between described strip shaped electric poles, becomes disconnected absolute electrode each other, then loads line by line to touch to drive signal, completes the scanning of touch signal.
The embodiment of the present invention provides a kind of touch display panel and driving method thereof, display device, the strip shaped electric poles that makes to cut apart design in the demonstration stage is positioned at one end mutual conduction of the same side, the one end that is simultaneously positioned at opposite side is mutual conduction also, be that strip shaped electric poles is equivalent to form whole piece by parallel connection, loading common electric voltage plays public electrode and does the used time like this, can reduce impedance, crosstalk (the cross talk) that avoid the delay of public voltage signal and cause thus etc. are bad, improve display effect; In the touch control detection stage, between each strip shaped electric poles, mutually disconnect, strip shaped electric poles becomes disconnected absolute electrode each other, plays and touches drive electrode effect, does not affect the scanning of touch signal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram that only possesses public electrode in the liquid crystal panel of Presentation Function in prior art;
Fig. 2 be in prior art in embedded liquid crystal panel public electrode cut apart the schematic diagram of design;
The structural representation one of the touch display panel that Fig. 3 provides for the embodiment of the present invention;
The structural representation two of the touch display panel that Fig. 4 provides for the embodiment of the present invention;
Fig. 5 is the schematic diagram that in prior art, the demonstration stage loads common electric voltage.
Reference numeral
10-public electrode, 11-absolute electrode, 12-strip shaped electric poles, 13-switching tube, 14-control signal wire,
15-public voltage signal line, 16-lead-in wire.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
The embodiment of the present invention provides a kind of touch display panel, comprising: a plurality of spaced strip shaped electric poles, and the public electrode of described strip shaped electric poles in a line or multirow pixel interconnects and forms; In the demonstration stage, one end mutual conduction that is positioned at the same side of these strip shaped electric poles, the one end that is simultaneously positioned at opposite side is mutual conduction also, and this stage, these strip shaped electric poles were used for loading common electric voltage, played public electrode effect; In the touch control detection stage, between these strip shaped electric poles, mutually disconnect, strip shaped electric poles becomes disconnected absolute electrode each other, and this stage, these strip shaped electric poles were used for loading touch driving voltage, worked the drive electrode effect that touches.
Strip shaped electric poles can the public electrode in one-row pixels interconnects and forms, and can be also that a strip electrode pair is answered multirow pixel, and strip shaped electric poles is that public electrode in multirow pixel interconnects and forms.In the touch control detection stage, each strip shaped electric poles is one and touches drive electrode (or touch-control drive wire).
Strip shaped electric poles in the embodiment of the present invention, cuts apart and designs original public electrode, and the mode that adopts timesharing to drive reaches and touches drive electrode Tx and the shared object of public electrode.During preparation, first deposit the transparency conducting layer of a whole layer, and then form a plurality of spaced strip shaped electric poles (the concrete figure of strip shaped electric poles exists multiple, but this is unrelated to the invention, no longer describes in detail) herein through photoetching, specifically can be with reference to shown in Fig. 2.Those strip shaped electric poles in the demonstration stage respectively in two ends mutual conduction, thereby be linked to be whole piece, be equivalent to one whole layer of transparency conducting layer, while loading common electric voltage like this, can reduce impedance, the cross talk that avoid the delay of public voltage signal Vcom and cause thus etc. are bad, improve display effect; In the touch control detection stage, those strip shaped electric poles disconnect mutually becomes disconnected absolute electrode each other, for loading touch driving voltage, does not affect the scanning of touch signal, and those strip shaped electric poles now serve as touch drive electrode.
Above-mentioned touch display panel, its driving method is specific as follows: in the demonstration stage, those strip shaped electric poles are positioned at one end mutual conduction of the same side, the one end that is simultaneously positioned at opposite side is mutual conduction also, be equivalent to strip shaped electric poles and be linked to be whole piece, then load common electric voltage, realize Presentation Function; In the touch control detection stage, between described strip shaped electric poles, mutually disconnect, strip shaped electric poles becomes disconnected absolute electrode each other, then loads and touches driving voltage line by line, completes the scanning of touch signal, realizes touch control detection function.
In technique scheme, how strip shaped electric poles specifically realizes mutual conduction in the demonstration stage, in the touch control detection stage, realize mutually and disconnecting, this does not affect implementation result of the present invention, therefore which kind of concrete implementation the present embodiment adopts do not limit to it, can be any implementation well-known to those skilled in the art.Below by specific embodiment, technical scheme provided by the invention is elaborated, apparently, the specific embodiment in the following describes is only as exemplary embodiment more of the present invention, and is not used in restriction.
As shown in Figure 3, the first embodiment for the present embodiment, on touch display panel, be provided with a plurality of spaced strip shaped electric poles 12, strip shaped electric poles 12 is at least connected with another adjacent strip shaped electric poles 12 by switching tube 13 respectively at two ends arbitrarily, be adjacent strip shaped electric poles 12 be positioned at the same side one end by switching tube 13 mutual conduction, be positioned at one end of opposite side also by switching tube 13 mutual conduction simultaneously.Particularly, those switching tubes 13 have first utmost point, second utmost point and control end, first utmost point of those switching tubes 13 and second utmost point are connected to respectively one end that adjacent two strip shaped electric poles 12 are positioned at the same side, and control end is all connected to control signal wire 14 (the EM signal wire in Fig. 3).
In the demonstration stage, switching tube 13 is opened, strip shaped electric poles 12 whole piece that forms in parallel, identical as public electrode with one whole layer of transparency conducting layer shown in Fig. 1 in effect, thereby solve due in prior art because public electrode is cut apart the excessive problem of demonstration stage impedance that design causes, avoid crosstalking (cross talk) etc. bad, improve display effect.It should be noted that, in this embodiment, public voltage signal, with touch to drive the loading of signal identical with prior art, specifically can, with reference to shown in Fig. 5 and relevant description, repeat no more herein.
As shown in Figure 4, the second embodiment for the present embodiment, be with the difference part of the first embodiment, the strip shaped electric poles 12 (Fig. 4 for the strip shaped electric poles 12 of close lower limb) that is arranged in touch display panel edge is connected with public voltage signal line 15 (Fig. 4 VCOM signal wire) by switching tube 13 respectively at two ends.Particularly, first utmost point of switching tube 13 is connected to the right-hand member that public voltage signal line 15, the second utmost points are connected to the left end of the last item strip shaped electric poles 12 or are positioned at opposite side, and control end is connected to control signal wire 14 (the EM signal wire in Fig. 4).Certainly, this strip shaped electric poles 12 also only the one end in two ends by switching tube 13, be connected with public voltage signal line 15.
In the demonstration stage, switching tube 13 is opened, public voltage signal is loaded into the strip shaped electric poles 12 (being the strip shaped electric poles 12 of the most close panel lower limb in Fig. 4) of face plate edge by switching tube 13, public voltage signal starts to be transferred to whole screen from connected strip shaped electric poles 12.Therefore, in the embodiment shown in Fig. 4, originally by shared same signal wire, load and touch driving signal and common electric voltage, also can only be used for now loading touch and drive signal.Certainly preferably, also can original public voltage signal load mode with Fig. 4 in by switching tube 13, load mutually parallel mode, in the demonstration stage, adopt public voltage signal by switching tube 13, to be loaded into the strip shaped electric poles 12 of face plate edge, by the original mode that shares same signal wire, load public voltage signal simultaneously.
Preferably, above-mentioned switching tube is arranged on the edge of touch display panel, is convenient to public voltage signal line 15 and control signal wire 14 to connect up in face plate edge, need to not introduce in viewing area wiring.
In a kind of specific implementation, described touch display panel also comprises: common electric voltage output terminal, common electric voltage output terminal generally designs at display driver IC (integrated circuit, chip) or FPC (Flexible Printed Circuit, soft drive shows cable) in, common electric voltage output terminal is positioned at the edge of a certain side of touch display panel, as be arranged in the lower limb of Fig. 4, the strip shaped electric poles 12 of the most close this common electric voltage output terminal place one side (being the last item strip shaped electric poles 12 that is positioned at panel lower limb in Fig. 4), by switching tube 13, be connected with public voltage signal line 15.At this moment control signal wire 14 is chosen in left and right edges cabling respectively, and switching tube 13 is arranged on the inner side of control signal wire 14, and connecting up easy, reasonable in the outside of strip electrode 12, is easier to realize narrow frame.
In present embodiment, by switching tube 13 being set between adjacent strip shaped electric poles 12, and by unlatching and the shutoff of control signal wire 14 gauge tap pipes 13, thereby realize strip shaped electric poles 12, in the demonstration stage, realize strip shaped electric poles 12 parallel connections, in the touch-control stage, mutually disconnect.Can find out: in the structure shown in Fig. 4, every between arbitrary neighborhood strip shaped electric poles 12 switching tube 13 is set, between adjacent strip shaped electric poles 12, in the demonstration stage, there is a firing point, in the present embodiment, require at least at the two ends of strip shaped electric poles 12, a switching tube 13 to be respectively set, like this when showing that stage switch pipe 13 is opened, adjacent strip shaped electric poles 12 is in two ends mutual conduction, and adjacent strip shaped electric poles could form relation in parallel, thereby reduces to show the impedance of stage public electrode.
But in fact, except the switching tube 13 at two ends, between adjacent strip shaped electric poles 12, can also there is other region division switching tubes 13, for example, several switching tubes 13 can also be set more in middle viewing area and connect adjacent strip shaped electric poles 12, increase firing point, further reduce the impedance of demonstration stage public electrode, but can introduce in viewing area new wiring like this, reduce transmitance, therefore shown in Fig. 3, at the two ends of any adjacent strip shape electrode 12, by switching tube 13 is set, carrying out conducting, is the preferred version of the present embodiment.
In above-mentioned embodiment, at the two ends of adjacent strip shaped electric poles 12, switching tube 13 being set connects, and by unlatching and the shutoff of control signal wire 14 gauge tap pipes 13, thereby realize strip shaped electric poles 12 showing stage mutual conduction, in the touch control detection stage, mutually disconnect.The concrete driving method of this circuit is summarized as follows: in the demonstration stage, control signal wire 14 output high level are controlled all switching tubes 13 and are opened, in one end of the same side mutual conduction, the one end that is simultaneously positioned at opposite side is mutual conduction also, and then the signal on public voltage signal line 15 is by being loaded on each strip shaped electric poles 12; In the touch control detection stage, control signal wire 14 output low levels are controlled all switching tubes 13 and are turn-offed, make mutually to disconnect between each strip shaped electric poles 12, each strip shaped electric poles 12 becomes disconnected absolute electrode each other, simultaneously being connected also between public voltage signal line 15 and strip shaped electric poles 12 disconnects, then load and touch driving voltage line by line, complete the scanning of touch signal.Wherein, signal on control signal wire 14 is opened in the demonstration stage for gauge tap pipe 13, in the touch control detection stage, turn-off, can produce the new signal that meets this requirement by circuit, also can utilize existing signal, as control signal or the EM signal that existing demonstration/touch-control is switched, the EM signal of take in the present embodiment Fig. 3 and Fig. 4 describes as example.
In present embodiment, in the demonstration stage, adjacent strip shaped electric poles 12 is in two ends mutual conduction, be equivalent to all strip shaped electric poles 12 public electrode that forms full wafer in parallel, thereby solve because public electrode is cut apart the excessive problem of demonstration stage impedance that design causes, avoid crosstalking (cross talk) etc. bad, improve display effect.
As shown in Figure 5, when the mode driving for available technology adopting timesharing shares strip shaped electric poles, it loads the schematic diagram of common electric voltage in the demonstration stage.In prior art, face plate edge is provided with the lead-in wire 16 with strip shaped electric poles similar number, and during signal loading, these lead-in wires 16 share, and touches and drives signal and common electric voltage by these lead-in wires 16, to load at times, in the demonstration stage, these lead-in wires 16 all load same common electric voltage; And in the touch control detection stage, these lead-in wires 16 load line by line and touch driving voltage, to complete the scanning of touch signal.
If establishing the number of strip shaped electric poles is N, the impedance of each strip shaped electric poles is R, shows that stage resulting impedance is NR; And for the embodiment of the present invention, all strip shaped electric poles 12 parallel connections of demonstration stage, resulting impedance is R/N, therefore, compare with the transmission of N the public voltage signal Vcom disconnecting each other in prior art, the impedance in the embodiment of the present invention has become original N/mono-(N is the number of strip shaped electric poles 12).
Alternatively, above-mentioned switching tube is triode, or is thin film transistor (TFT), and wherein, thin film transistor (TFT) can be depletion type switching tube, or is enhancement mode switching tube.
Touch display panel in the present embodiment and driving method thereof, can solve because public electrode is cut apart the excessive problem of demonstration stage impedance that causes of design, and avoid crosstalking (cross talk) etc. is bad, improves display effect.
The embodiment of the present invention also provides a kind of display device, comprising: the touch display panel described in any one.Described display device shows that stage impedance is little, and energy saving, can obtain higher display quality.Described display device can be: any product or parts with Presentation Function such as liquid crystal panel, Electronic Paper, mobile phone, panel computer, televisor, display, notebook computer, digital album (digital photo frame), navigating instrument.
For the ease of clearly demonstrating; adopted in the present invention first, second printed words such as grade to carry out class discrimination to similar item; these first, second printed words quantitatively do not limit the invention; be illustrating a kind of preferred mode; those skilled in the art are according to content disclosed by the invention, and apparent similar distortion or the related expanding expected all belong in protection scope of the present invention.
Each embodiment in this instructions all adopts the mode of going forward one by one to describe, between each embodiment identical similar part mutually referring to, each embodiment stresses is the difference with other embodiment.Especially, for apparatus embodiments, because it is substantially similar in appearance to embodiment of the method, so describe fairly simplely, relevant part is referring to the part explanation of embodiment of the method.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. a touch display panel, comprising: a plurality of spaced strip shaped electric poles, and the public electrode of described strip shaped electric poles in a line or multirow pixel interconnects and forms; Described strip shaped electric poles is used for loading common electric voltage in the demonstration stage, plays public electrode effect, and in the touch control detection stage, described strip shaped electric poles is used for loading touch driving voltage, plays and touches drive electrode effect, it is characterized in that,
In the demonstration stage, described strip shaped electric poles is positioned at one end mutual conduction of the same side, and the one end that is simultaneously positioned at opposite side is mutual conduction also; In the touch control detection stage, between described strip shaped electric poles, mutually disconnect, become disconnected absolute electrode each other.
2. touch display panel according to claim 1, is characterized in that, adjacent strip shaped electric poles is positioned at one end of the same side by switching tube mutual conduction, is positioned at one end of opposite side also by switching tube mutual conduction simultaneously; Described switching tube has first utmost point, second utmost point and control end, and first utmost point of described switching tube and second utmost point are connected to respectively one end that adjacent two described strip shaped electric poles are positioned at the same side, and control end is connected to control signal wire.
3. touch display panel according to claim 2, is characterized in that,
Be positioned at the strip shaped electric poles at described touch display panel edge, at least one end in its two ends is connected with public voltage signal line by switching tube, first utmost point of described switching tube is connected to described public voltage signal line, second utmost point is connected to one end of strip shaped electric poles, and control end is connected to described control signal wire.
4. touch display panel according to claim 3, is characterized in that, also comprises: common electric voltage output terminal, is arranged on the edge of described touch display panel;
On described touch display panel, the strip shaped electric poles of the most close described common electric voltage output terminal place one side, is connected with described public voltage signal line by described switching tube.
5. according to the touch display panel described in claim 2-4 any one, it is characterized in that,
Described switching tube is arranged on the edge of described touch display panel.
6. touch display panel according to claim 5, is characterized in that,
Described switching tube is triode, or is thin film transistor (TFT).
7. a display device, is characterized in that, comprising: the touch display panel described in claim 1-6 any one.
8. a driving method for touch display panel, described touch display panel comprises a plurality of spaced strip shaped electric poles, and the public electrode of described strip shaped electric poles in a line or multirow pixel interconnects and forms, and it is characterized in that, and described driving method comprises:
In the demonstration stage, described strip shaped electric poles is positioned at one end mutual conduction of the same side, and the one end that is simultaneously positioned at opposite side is mutual conduction also, then loads common electric voltage;
In the touch control detection stage, between described strip shaped electric poles, mutually disconnect, become disconnected absolute electrode each other, then load line by line and touch driving signal, complete the scanning of touch signal.
9. a driving method for touch display panel described in claim 2, adopts the mode that timesharing drives to share strip shaped electric poles, it is characterized in that, this driving method comprises:
In the demonstration stage, control signal wire output high level opening switch pipe, makes strip shaped electric poles be positioned at one end mutual conduction of the same side, and the one end that is simultaneously positioned at opposite side is mutual conduction also, and then the signal loading on public voltage signal line is to described strip shaped electric poles;
In the touch control detection stage, described control signal wire output low level is turn-offed described switching tube, makes mutually to disconnect between described strip shaped electric poles, becomes disconnected absolute electrode each other, then loads line by line to touch to drive signal, completes the scanning of touch signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410234414.0A CN104020881B (en) | 2014-05-29 | 2014-05-29 | Touch display panel and its driving method, display device |
| PCT/CN2014/085098 WO2015180270A1 (en) | 2014-05-29 | 2014-08-25 | Touch display panel and drive method therefor, and display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410234414.0A CN104020881B (en) | 2014-05-29 | 2014-05-29 | Touch display panel and its driving method, display device |
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| CN104020881A true CN104020881A (en) | 2014-09-03 |
| CN104020881B CN104020881B (en) | 2017-06-16 |
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| CN103257770B (en) * | 2013-04-16 | 2016-09-28 | 北京京东方光电科技有限公司 | A kind of capacitor touch array substrate, touch display screen and driving method thereof |
| CN203149548U (en) * | 2013-04-16 | 2013-08-21 | 北京京东方光电科技有限公司 | Capacitive touch array substrate and touch display screen |
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- 2014-05-29 CN CN201410234414.0A patent/CN104020881B/en active Active
- 2014-08-25 WO PCT/CN2014/085098 patent/WO2015180270A1/en active Application Filing
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Also Published As
| Publication number | Publication date |
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| CN104020881B (en) | 2017-06-16 |
| WO2015180270A1 (en) | 2015-12-03 |
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