CN105760018A - Driving method for touch display panel and touch display device comprising same - Google Patents
Driving method for touch display panel and touch display device comprising same Download PDFInfo
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- CN105760018A CN105760018A CN201610097311.3A CN201610097311A CN105760018A CN 105760018 A CN105760018 A CN 105760018A CN 201610097311 A CN201610097311 A CN 201610097311A CN 105760018 A CN105760018 A CN 105760018A
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- touch
- signal
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- electrode
- display panel
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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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- 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
- G06F3/0414—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using force sensing means to determine a position
Abstract
The invention discloses a driving method for a touch display panel and a touch display device comprising the same.The touch display panel comprises at least one first conductive electrode, at least one second conductive electrode and at least one switch selector.The switch selectors are in coupling connection with the corresponding first conductive electrodes respectively.The switch selectors are used for selectively outputting touch induction signals or pressure induction signals received from the first conductive electrodes.According to the touch display panel, on the basis of not changing an existing touch display panel electrode structure, touch induction electrodes can be reused just by adding the switch selectors, and the touch display panel with a pressure induction function is obtained.
Description
Technical field
The present invention relates to technical field of touch-control display, in particular to the driving method of a kind of touch-control display panel and the touch control display apparatus comprising it.
Background technology
The application of touch control display apparatus (such as smart mobile phone, panel computer etc.) is more and more universal, except traditional two-dimentional touch technology, has also risen a kind of pressure touch (ForceTouch) technology that can sense pressure size.Pressure touch technology is by sensing the pressure information to touch control display apparatus, thus realizing the better man-machine interaction experience of user.
Increase at present usually such as the elements such as induction electrode, the change of the electric capacity caused by detecting the changes of voids shown between module and center on the center of touch control display apparatus or the backlight module of LCDs, realize pressure sensitive.Such design needs extra attaching elements, such as attachment induction electrode, increase process complexity；And owing to assembly precision is inadequate, cause that the degree of accuracy of pressure sensitive is also affected by impact.
Summary of the invention
The present invention provides the driving method of a kind of touch-control display panel and the touch control display apparatus that comprises it, it is possible on the architecture basics of existing touch-control display panel, compatibility realizes pressure touch function.
Other characteristics of the present invention and advantage will be apparent from by detailed description below, or partially by the practice of the present invention and acquistion.
According to an aspect of the present invention, it is provided that a kind of touch-control display panel, including at least one the first conductive electrodes；At least one the second conductive electrodes；And at least one switching selector, coupling with corresponding described at least one the first conductive electrodes respectively, described switching selector is for optionally exporting the touch-control sensing signal or pressure sensitive signal received from described at least one the first conductive electrodes.
Touch-control display panel according to the present invention, is not changing on the basis of existing touch-control display panel electrode structure, only by increasing switching selector, can reach multiplexing touch-control sensing electrode, it is achieved have the purpose of the touch-control display panel of pressure sensitive function.
It should be appreciated that above general description and details hereinafter describe and be merely illustrative of, the present invention can not be limited.
Accompanying drawing explanation
Its example embodiment being described in detail by referring to accompanying drawing, above-mentioned and other target of the present invention, feature and advantage will become apparent from.
Fig. 1 is the structural representation of a kind of touch-control display panel according to an illustrative embodiments.
Fig. 2 is the structural representation of the another kind of touch-control display panel according to an illustrative embodiments.
Fig. 3 is the structural representation of another touch-control display panel according to an illustrative embodiments.
Fig. 4 is the block diagram of the switching selector according to an illustrative embodiments.
Fig. 5 is the circuit diagram of the switching selector according to an illustrative embodiments.
Fig. 6 is the flow chart of the driving method of a kind of touch control display apparatus according to an illustrative embodiments.
Fig. 7 is the sequential chart in this touch control display apparatus work process according to an illustrative embodiments.
Detailed description of the invention
It is described more fully with example embodiment referring now to accompanying drawing.But, example embodiment can be implemented in a variety of forms, and is not understood as limited to example set forth herein；On the contrary, it is provided that these embodiments make the present invention will more fully and completely, and the design of example embodiment is conveyed to those skilled in the art all sidedly.Accompanying drawing is only the schematic illustrations of the present invention, is not necessarily drawn to scale.Accompanying drawing labelling identical in figure represents same or similar part, thus will omit repetition thereof.
Additionally, described feature, structure or characteristic can be combined in one or more embodiment in any suitable manner.In the following description, it is provided that many details are thus providing fully understanding embodiments of the present invention.It will be appreciated, however, by one skilled in the art that can put into practice technical scheme and omit in described specific detail is one or more, or other method, constituent element, device, step etc. can be adopted.In other cases, known features, method, device, realization, material or operation are not shown in detail or describe to avoid that a presumptuous guest usurps the role of the host and to make each aspect of the present invention thicken.
It should be noted that use in specification and claims of the present invention " on ", the orientation indicated by word such as D score or position relationship be based on present invention orientation shown in the drawings or position relationship, be merely for convenience and purposes of illustration, and the unrestricted present invention.
Fig. 1 is the structural representation of a kind of touch-control display panel according to an illustrative embodiments.As it is shown in figure 1, touch-control display panel 10 includes: at least one the first conductive electrode Rx, at least one the second conductive electrode Tx and at least one switching selector 102.
At least one of which switching selector 102 couples with corresponding at least one the first conductive electrode Rx respectively, for instance switching selector 102 can pass through the first contact conductor 104 and the first conductive electrode Rx electric connection.
First conductive electrode Rx and the second conductive electrode Tx may be respectively used for touch-control sensing or pressure sensitive in the different time periods.As driven the stage at touch-control, input touch-control to the second conductive electrode Tx and drive signal, and by receiving the touch-control sensing signal of its feedback from the first conductive electrode Rx, realize the touch controllable function of touch-control display panel.Implementing principle is: due to the electric field action of human body, when touch object contact contact panels 10 such as such as fingers, the capacitance size of the mutual capacitance formed between the first conductive electrode Rx and the second conductive electrode Tx will be affected, therefore can according to the capacitance variation situation of the mutual capacitance formed between touch point position the first conductive electrode Rx and the second conductive electrode Tx, calculate the position of touch point, thus realizing touch controllable function.
The stage is driven in pressure sensitivity, signal is driven to the first conductive electrode Rx input pressure, the reference voltage signal (such as public voltage signal) of a fixed value is inputted to the second conductive electrode Tx, and by receiving the pressure sensitive signal of its feedback from the first conductive electrode Rx, realize the pressure sensitive function of touch-control display panel.Implementing principle is: when touch object pressing touch-control display panels 10 such as such as fingers, change the gap between the first conductive electrode Rx and the second conductive electrode Tx, the capacitance making the mutual capacitance formed between the first conductive electrode Rx and the second conductive electrode Tx changes because of the change in this gap, therefore can according to the change of the capacitance of the mutual capacitance formed between the first conductive electrode Rx and the second conductive electrode Tx, calculate pressure size, thus realizing pressure sensitive function.
Switching selector 102 is for optionally providing from the first conductive electrode Rx touch-control sensing signal RX_signal received or pressure sensitive signal FX_signal to process circuit 1, so that processing circuit 1 to calculate touch point position according to touch-control sensing signal RX_signal, or calculate the pressure size of touch object according to pressure sensitive signal FX_signal.Or, switching selector 102 can also be respectively coupled to different process circuit, to be processed touch-control sensing signal RX_signal or pressure sensitive signal FX_signal respectively by different process circuit.
It should be noted that; in Fig. 1, the first conductive electrode Rx and the second arrangement mode arranged in a crossed manner for conductive electrode Tx are only an example; and the unrestricted present invention; it will be understood by those skilled in the art that; principle explanation is realized according to above-mentioned; making the present invention be under enforceable premise, between the first conductive electrode Rx and the second conductive electrode Tx, arbitrary arrangement mode belongs to protection scope of the present invention.
The touch-control display panel 10 that present embodiment provides is not changing on the basis of existing touch-control display panel electrode structure, only by increasing switching selector, can reach multiplexing touch-control sensing electrode, it is achieved have the purpose of the touch-control display panel of pressure sensitive function.
It will be clearly understood that present disclosure describe how to be formed and use particular example, but principles of the invention is not limited to any details of these examples.On the contrary, based on the instruction of present disclosure, these principles can be applied to numerous other embodiments.
Fig. 2 is the structural representation of the another kind of touch-control display panel according to an illustrative embodiments.As in figure 2 it is shown, with the touch-control display panel 10 shown in Fig. 1 the difference is that, touch-control display panel 20 still further comprises the color membrane substrates 106 and array base palte 108 and the liquid crystal layer between color membrane substrates 106 and array base palte 108 110 that are oppositely arranged.
First conductive electrode Rx is positioned under color membrane substrates 106.Switching selector 102 can be positioned at same layer with the first conductive electrode Rx, it is also possible to is positioned at different layers.
Second conductive electrode Tx is arranged on array base palte 108.In certain embodiments, the second conductive electrode Tx can be multiplexed with the public electrode of touch-control display panel 20.When the switching selector 102 in Fig. 1 is used for providing pressure sensitive signal FX_signal, namely drive stage, the second conductive electrode Tx outputting common voltage signal in pressure sensitivity.
Fig. 3 is the structural representation of another touch-control display panel according to an illustrative embodiments.As it is shown on figure 3, the first conductive electrode Rx that the difference is that only in touch-control display panel 30 with the touch-control display panel 10 shown in Fig. 2 is positioned on color membrane substrates 106.
Although it should be noted that invention shows two kinds of HybridIn-Cell (hybrid embedded, HIC) touch display panel structure, but the unrestricted present invention.The touch-control display panel of the present invention is applicable to any In-cell touch display panel structure.
Fig. 4 is the block diagram of the switching selector according to an illustrative embodiments.As shown in Figure 4, switching selector 102 includes: electrode signal end SXN, control signal end CTR, touch-control sensing signal end RXN and pressure sensitive signal end FXN.
Wherein, electrode signal end SXN couples with the first corresponding conductive electrode RX.
Control signal end CTR is used for receiving control signal CTR_signal.According to the control signal CTR_signal received, switching selector determines that electrode signal end SXN electrically connects with touch-control sensing signal end RX, or electrically connect with pressure sensitive signal end FXN.
Such as, drive the stage at touch-control, controlled the conducting of electrode signal end SXN and touch-control sensing signal end RX by control signal CTR_signal, thus providing, to the circuit 1 that processes shown in Fig. 1, the touch-control sensing signal RX_signal coupling reception from the first conductive electrode RX.Or, the stage is driven in pressure sensitivity, the conducting of electrode signal end SXN and pressure sensitive signal end FXN is controlled, thus providing, to the circuit 1 that processes shown in Fig. 1, the pressure sensitive signal FX_signal coupling reception from the first conductive electrode RX by control signal CTR_signal.
In addition, in certain embodiments, the stage is driven in pressure sensitivity, when controlling conduction electrode signal end SXN and pressure sensitive signal end FXN by control signal CTR_signal, signal is driven to the first conductive electrode Rx input pressure, for instance process circuit 1 as shown in Figure 1 drives signal by this path to the first conductive electrode Rx input pressure also by this path.
Specifically, Fig. 5 is the circuit diagram of the switching selector 102 according to an illustrative embodiments.As it is shown in figure 5, switching selector 102 includes: the first switching device 1022 and second switch device 1024.
Wherein the control end G and control signal end CTR of the first switching device 1022 couples, and the first end S and electrode signal end SXN of the first switching device 1022 couple, and the second end D and touch-control sensing signal end RXN of the first switching device 1022 couple.
First switching device 1022 can be such as PMOS switch pipe, the grid that control end G is PMOS switch pipe of the first switching device 1022, first end S of the first switching device 1022 is the source electrode of PMOS, and the second end D of the first switching device 1022 is missing of PMOS.
The control end G and control signal end CTR of second switch device 1024 couple, and the first end D and electrode signal end SXN of second switch device 1024 couple, and the second end S and pressure sensitive signal end FXN of second switch device 1024 couple.
Second switch device 1024 can be such as nmos switch pipe, the grid that control end G is nmos switch pipe of second switch device 1024, first end D of second switch device 1024 is the drain electrode of NMOS tube, and the second end S of second switch device 1024 is the source electrode of NMOS tube.
Circuit diagram as shown in Figure 5, the stage is driven at touch-control, when the control signal CTR_signal of input is low level, first switching device 1022 turns on, second switch device 1024 ends, electrode signal end SXN and the touch-control sensing signal end RXN conducting of switching selector 102, it is provided that the touch-control sensing signal RX_signal detected from the first conductive electrode Rx.
The stage is driven in pressure sensitivity, when the control signal Control_signal of input is high level, first switching device 1022 ends, second switch device 1024 turns on, electrode signal end SXN and the pressure sensitive signal end FXN conducting of switching selector 102, it is provided that the pressure sensitive signal FX_signal detected from the first conductive electrode Rx.Additionally, when sensing pressure sensitive signal FX_signal, the second conductive electrode Tx exports the reference signal of fixed voltage value, for instance public voltage signal, thus as the reference point of pressure sensitive signal FX_signal simultaneously.
Control signal Control_signal can provide by process circuit 1 as shown in Figure 1, or can also be provided by a touch drive circuit.
It should be noted that for the embodiment shown in Fig. 5, the first switching device 1022 is not limited to PMOS, second switch device 1024 is also not limited to NMOS simultaneously, it is possible to arbitrarily arrange according to the needs of product.As long as ensure one of which be NMOS while another one be PMOS.Fig. 6 is the flow chart of the driving method of a kind of touch control display apparatus according to an illustrative embodiments.Fig. 7 is the sequential chart in this touch control display apparatus work process according to an illustrative embodiments.This touch control display apparatus includes touch-control display panel 10, and associating is with reference to Fig. 1-7, and this driving method 40 includes:
In step S402, the stage is driven at touch-control, input touch-control as shown in Figure 7 to the second conductive electrode Tx and drive signal, and provide, to the circuit 1 that processes shown in Fig. 1, the touch-control sensing signal detected from the first conductive electrode Rx by switching selector 102, to identify the position of touch of touch object.
Touch-control to the second conductive electrode Tx input drives signal can be provided by the touch drive circuit of this touch control display apparatus, or can also be provided by the process circuit processing above-mentioned touch-control sensing signal.
In this stage, the first conductive electrode Rx is only used for exporting touch-control sensing signal, and without input signal.
In step s 404, the stage is driven in pressure sensitivity, pressure-driven signal as shown in Figure 7 is inputted to the first conductive electrode Rx, and the reference voltage signal (such as public voltage signal Vcom) to the second conductive electrode Tx input fixed voltage value as shown in Figure 7, and provide, to the circuit 1 that processes shown in Fig. 1, the pressure sensitive signal detected from the first conductive electrode Rx by switching selector 102, to identify the pressure size of touch object.
To first conductive electrode Rx input pressure-driven signal can by process above-mentioned pressure sensitive signal process circuit (the process circuit 1 in Fig. 1) provide, or can also by one drive circuit, as above-mentioned touch drive circuit provides.Wherein, the process circuit processing circuit and process touch-control sensing signal of processing pressure induced signal can integrate, it is also possible to discrete setting, does not limit at this.
In step S406, in the display driving stage, input public voltage signal Vcom to the second conductive electrode Tx.In this stage, the first conductive electrode Rx is set to floating, does not namely input any signal to the first conductive electrode Rx.
Additionally, in the display driving stage, also include: input scanning signal line by line to the gate line of touch control display apparatus, to the data wire input data signal of touch control display apparatus.
As adopted timesharing driving method as shown in Figure 6 and Figure 7, touch-control display panel provided by the invention is not changing on the basis of existing touch-control display panel electrode structure, only by increasing switching selector, and Tx, Rx signal that timesharing input is different, can realize the functions such as touch-control, pressure sensitive and display.
More than it is particularly shown and described the illustrative embodiments of the present invention.It should be appreciated that the invention is not restricted to detailed construction described herein, set-up mode or realize method；On the contrary, it is intended to various amendments and equivalence in containing the spirit and scope being included in claims are arranged.
Claims (11)
1. a touch-control display panel, it is characterised in that including:
At least one the first conductive electrodes；
At least one the second conductive electrodes；And
At least one switching selector, couples with corresponding described at least one the first conductive electrodes respectively, and described switching selector is for optionally exporting the touch-control sensing signal or pressure sensitive signal received from described at least one the first conductive electrodes.
2. touch-control display panel according to claim 1, it is characterised in that at least one switching selector described includes: electrode signal end, control signal end, touch-control sensing signal end and pressure sensitive signal end；Described first conductive electrode that wherein said electrode signal end is corresponding with described switching selector couples, and described control signal end is used for receiving control signal.
3. touch-control display panel according to claim 2, it is characterized in that, described switching selector is additionally operable to according to described control signal, exports described touch-control sensing signal optionally through described touch-control sensing signal end, or exports described pressure sensitive signal by described pressure sensitive signal end.
4. touch-control display panel according to claim 2, it is characterized in that, described switching selector is additionally operable to according to described control signal, electrode signal end described in electrical communication and described pressure sensitive signal end, to make a process circuit drive signal to the described first conductive electrode input pressure corresponding with described switching selector by described pressure sensitive signal end, and export described pressure sensitive signal by described pressure sensitive signal end to described process circuit.
5. touch-control display panel according to claim 2, it is characterised in that at least one switching selector described includes:
First switching device, the control end of described first switching device and described control signal end couple, and the first end of described first switching device and described electrode signal end couple, and the second end of described first switching device couples with described touch-control sensing signal end；And
Second switch device, the control end of described second switch device and described control signal end couple, and the first end of described second switch device and described electrode signal end couple, and the second end of described second switch device couples with described pressure sensitive signal end.
6. touch-control display panel according to claim 5, it is characterized in that, described first switching device is PMOS, the grid that control end is described PMOS of described first switching device, the source electrode that first end is described PMOS of described first switching device, the drain electrode that the second end is described PMOS of described first switching device；And
Described second switch device is NMOS tube, the grid that control end is described NMOS tube of described second switch device, the drain electrode that the first end is described NMOS tube of described second switch electrode, and the source electrode that the second end is described NMOS tube of described second switch electrode.
7. touch-control display panel according to claim 1, it is characterized in that, when described switching selector exports described pressure sensitive signal, the reference signal that output signal is described pressure sensitive signal of described second conductive electrode, described reference signal includes: public voltage signal or fixed voltage signal.
8. touch-control display panel according to claim 1, it is characterised in that also include: color membrane substrates and array base palte；Wherein said at least one the first conductive electrodes are arranged on described color membrane substrates；Described at least one the second conductive electrodes are arranged on described array base palte, and are multiplexed with public electrode.
9. touch-control display panel according to claim 8, it is characterised in that when described switching selector is used for providing described pressure sensitive signal, described at least one the second conductive electrode outputting common voltage signals.
10. the driving method of a touch control display apparatus, it is characterised in that described touch control display apparatus includes the touch-control display panel according to any one of claim 1-9, and described driving method includes:
Drive the stage at touch-control, drive signal at least one the second conductive electrode input touch-controls, and exported the touch-control sensing signal received from least one the first conductive electrodes by least one switching selector, to identify the position of touch of touch object；
The stage is driven in pressure sensitivity, signal is driven to described at least one the first conductive electrode input pressures, to described at least one the second conductive electrode input public voltage signal or fixed voltage pulse signals, and by the pressure sensitive signal that at least one switching selector described output receives from described at least one the first conductive electrodes, to detect the pressure size of described touch object；And
In the display driving stage, to described at least one the second conductive electrode input public voltage signal.
11. driving method according to claim 9, it is characterized in that, the stage is driven in described pressure sensitivity, a process circuit is made to input described pressure-driven signal by described at least one switching selector to described at least one the first conductive electrodes, and by described at least one switching selector to the described process circuit described pressure sensitive signal of offer.
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| CN201610097311.3A CN105760018B (en) | 2016-02-05 | 2016-02-05 | The driving method of touch-control display panel and the touch control display apparatus comprising it |
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| CN201610097311.3A CN105760018B (en) | 2016-02-05 | 2016-02-05 | The driving method of touch-control display panel and the touch control display apparatus comprising it |
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| CN105760018B (en) | 2019-06-11 |
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