CN104537972A - Driving circuit, touch displaying panel and touch displaying device - Google Patents
Driving circuit, touch displaying panel and touch displaying device Download PDFInfo
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- CN104537972A CN104537972A CN201410826348.6A CN201410826348A CN104537972A CN 104537972 A CN104537972 A CN 104537972A CN 201410826348 A CN201410826348 A CN 201410826348A CN 104537972 A CN104537972 A CN 104537972A
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Abstract
The invention discloses a driving circuit, a touch displaying panel and a touch displaying device. The middle portions of all scanning circuits of the driving circuit are divided into multiplex scanning circuits. The scanning circuits comprise shifting deposit modules, logic modules and buffering modules. The multiplex scanning circuits further comprise selecting output modules. The driving circuit further comprises a plurality of switching modules and a plurality of signal transmission modules. When the touch displaying devices are at a displaying scanning stage, the switching module and the signal transmission module transmit signals from a first-level scanning circuit to an <N>th-level scanning circuit, and gate line scanning signals are output through the selecting output modules. When the touch displaying device is in a touch scanning stage, the switching modules and the signal transmission modules transmit signals from a first-level multiplex scanning circuit to an <M>th multiplex scanning circuit, and touch driving electrode scanning signals are output through the selecting output modules. According to the technical scheme, the frame width of the touch displaying panel is reduced, and the requirement for a narrow frame of the touch displaying device is met.
Description
Technical field
The present invention relates to technical field of touch-control display, more specifically, relate to a kind of driving circuit, touch-control display panel and touch control display apparatus.
Background technology
Along with the development of electronic information technology, touch control display apparatus has become a part indispensable in people's life, working and learning.The frame area of existing touch control display apparatus is large, does not meet the requirement of narrow frame.
Summary of the invention
In view of this, the invention provides a kind of driving circuit, touch-control display panel and touch control display apparatus, by the sweep circuit of the part or all of raster polar curve in touch control display apparatus being multiplexed with the touch drive circuit of scanning touch-control drive electrode, and make touch drive circuit without the need to the independent frame region at touch-control display panel, and then reduce the border width of touch-control display panel, meet the narrow frame requirement of touch control display apparatus.
For achieving the above object, technical scheme provided by the invention is as follows:
A kind of driving circuit, be applied to touch control display apparatus, described driving circuit comprises first order sweep circuit to N level sweep circuit, described sweep circuit comprises shift LD module, logic module and buffer module, described sweep circuit is used for raster polar curve, wherein, described first order sweep circuit to N level sweep circuit comprises the multiplexing sweep circuit of the first order to the multiplexing sweep circuit of M level, and described multiplexing sweep circuit also comprises: select output module, and described driving circuit also comprises at least one handover module and at least one signal transmission module; Described multiplexing sweep circuit is used for scanning described gate line in the reading scan stage, and at touch-control sweep phase scanning touch-control drive electrode, wherein, in described multiplexing sweep circuit:
The first input end of described selection output module is connected to the output terminal of described logic module, second input end of described selection output module is connected to the first signal end, first output terminal of described selection output module is connected to the input end of described buffer module, the output terminal of described buffer module is connected to described gate line, second output terminal of described selection output module is connected to described touch-control drive electrode, and the Enable Pin of described selection output module is connected to the 3rd control signal end;
And, in described driving circuit: the input end of described handover module is connected to the output terminal of the shift LD module of described i-th grade of multiplexing sweep circuit, first output terminal of described handover module is connected to the input end of the shift LD module of the next stage sweep circuit adjacent with described i-th grade of multiplexing sweep circuit, second output terminal of described handover module is connected to the second input end of described signal transmission module, and the Enable Pin of described handover module is connected to the first control signal end;
The first input end of described signal transmission module is connected to the output terminal of the shift LD module of the upper level sweep circuit adjacent with described the i-th+1 grade multiplexing sweep circuit, the output terminal of described signal transmission module is connected to the input end of the shift LD module of the i-th+1 grade multiplexing sweep circuit, the Enable Pin of described signal transmission module is connected to the second control signal end, wherein, N be greater than 2 integer, and M is less than N, 1=<i<=M-1.
Accordingly, present invention also offers a kind of touch-control display panel, described touch-control display panel comprises above-mentioned driving circuit.
Accordingly, present invention also offers a kind of touch control display apparatus, described touch control display apparatus comprises above-mentioned touch-control display panel.
Compared to prior art, at least concrete following advantage of technical scheme provided by the invention:
A kind of driving circuit provided by the invention, touch-control display panel and touch control display apparatus, wherein, first order sweep circuit to the N level sweep circuit of driving circuit comprises the multiplexing sweep circuit of the first order to the multiplexing sweep circuit of M level, wherein, sweep circuit includes shift LD module, logic module and buffer module, and multiplexing sweep circuit also comprises selection output module, and driving circuit also comprises multiple handover module and multiple signal transmission module.When touch control display apparatus is in the reading scan stage, handover module work and signal transmission module are all along first order sweep circuit to N level sweep circuit signal transmission, and the gate line sweep signal by selecting output module output logic circuit to provide; When touch control display apparatus is in touch-control sweep phase, handover module and signal transmission module are all along the multiplexing sweep circuit of the first order to the multiplexing sweep circuit signal transmission of M level, and the touch-control drive electrode sweep signal by selecting output module output logic circuit to provide.Technical scheme provided by the invention, the touch drive circuit of scanning touch-control drive electrode is multiplexed with by sweep circuit part being used for raster polar curve, therefore touch drive circuit is made without the need to the independent frame region at touch-control display panel, and then reduce the border width of touch-control display panel, meet the narrow frame requirement of touch control display apparatus.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of a kind of sweep circuit that Fig. 1 provides for the embodiment of the present invention;
The structural representation of a kind of handover module that Fig. 2 a provides for the embodiment of the present invention;
The structural representation of a kind of signal transmission module that Fig. 2 b provides for the embodiment of the present invention;
A kind of structural representation selecting output module that Fig. 2 c provides for the embodiment of the present invention;
The structural representation of the another kind of sweep circuit that Fig. 3 provides for the embodiment of the present invention;
The sequential chart of a kind of driving circuit that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As described in background, the frame area of existing touch control display apparatus is large, does not meet the requirement of narrow frame.Concrete, existing touch control display apparatus can make touch drive circuit, to scan touch-control drive electrode in the frame region of touch-control display panel usually.But the frame region limited area of touch-control display panel, and the frame region of touch control display apparatus is taken by the multilevel scanning circuit of raster polar curve, if touch drive circuit will be arranged on the frame region of touch-control display panel, then need the frame enlarged areas of touch-control display panel, and then be difficult to the requirement meeting the narrow frame of touch control display apparatus.
Based on this, embodiments provide a kind of driving circuit, be applied to touch control display apparatus, wherein, driving circuit is arranged at the frame region of the touch-control display panel of touch control display apparatus, shown in composition graphs 1 to Fig. 2 c, is described in detail the driving circuit that the embodiment of the present invention provides.
Shown in figure 1, driving circuit comprises first order sweep circuit 101 to N level sweep circuit 10n, sweep circuit comprises shift LD module 1, logic module 2 and buffer module 3, sweep circuit is used for raster polar curve (G1 to Gn), wherein, first order sweep circuit 101 comprises the multiplexing sweep circuit of the first order 201 to the multiplexing sweep circuit 20m of M level to N level sweep circuit 10n, and multiplexing sweep circuit also comprises: select output module 4, and driving circuit also comprises at least one handover module 5 and at least one signal transmission module 6; Multiplexing sweep circuit is used at reading scan stage raster polar curve, and at touch-control sweep phase scanning touch-control drive electrode (TX1 to TXm), wherein, in multiplexing sweep circuit:
Select the control signal that output module 4 provides according to the 3rd control signal end CV3, gate line sweep signal is exported to gate line in the reading scan stage, and export signal that the first signal end provides to touch-control drive electrode simultaneously, or, export touch-control drive electrode sweep signal to touch-control drive electrode at touch-control sweep phase.Concrete, the first input end IN1 of output module 4 is selected to be connected to the output terminal of logic module 2, the second input end IN2 of output module 4 is selected to be connected to the first signal end S1, the first output terminal IN1 of output module 4 is selected to be connected to the input end of buffer module 3, the output terminal of buffer module 3 is connected to gate line, select 4 second output terminal IN2 of output module to be connected to touch-control drive electrode, select the Enable Pin C of output module 4 to be connected to the 3rd control signal end CV3;
And, the control signal of handover module 5 for providing according to the first control signal end CV1, in the reading scan stage start signal that the shift LD module of upper level sweep circuit exports transferred to the input end of the shift LD module of next stage sweep circuit, or, at touch-control sweep phase, the start signal that the shift LD module of multiplexing for upper level sweep circuit exports is transferred to the second input end of coupled signal transmission module; And the control signal of signal transmission module 6 for providing according to the second control signal end CV2, in the reading scan stage, the start signal that upper level sweep circuit exports is transferred to next stage sweep circuit, or, at touch-control sweep phase, the start signal that handover module exports is transferred to the multiplexing sweep circuit of next stage.Namely, in the driving circuit: the input end of handover module is connected to the output terminal of the shift LD module of i-th grade of multiplexing sweep circuit, first output terminal of handover module is connected to the input end of the shift LD module of the next stage sweep circuit adjacent with i-th grade of multiplexing sweep circuit, second output terminal of handover module is connected to the second input end of signal transmission module, and the Enable Pin of handover module is connected to the first control signal end;
The first input end of signal transmission module is connected to the output terminal of the shift LD module of the adjacent upper level sweep circuit of the multiplexing sweep circuit with the i-th+1 grade, the output terminal of signal transmission module is connected to the input end of the shift LD module of the i-th+1 grade multiplexing sweep circuit, the Enable Pin of signal transmission module is connected to the second control signal end, wherein, N be greater than 2 integer, and M is less than N, 1=<i<=M-1.
Concrete, when i is 1, in composition graphs 1 between the multiplexing sweep circuit 202 of the multiplexing sweep circuit of the first order 201 and the second level, the input end IN of handover module 5 is connected to the output terminal of the shift LD module of the multiplexing sweep circuit of the first order, first output terminal OUT1 of handover module 5 is connected to the input end of the shift LD module of the next stage sweep circuit 102 that multiplexing sweep circuit 201 is adjacent with the first order, second output terminal OUT2 of handover module 5 is connected to the second input end IN2 of signal transmission module 6, and the Enable Pin C of handover module 5 is connected to the first control signal end CV1; The first input end IN1 of signal transmission module 6 is connected to the output terminal of the shift LD module of the upper level sweep circuit 103 that multiplexing sweep circuit 202 is adjacent with the second level, the output terminal OUT of signal transmission module 6 is connected to the input end of the shift LD module of the multiplexing sweep circuit 202 in the second level, and the Enable Pin C of signal transmission module 6 is connected to the second control signal end CV2.
In the sweep circuit that the embodiment of the present invention provides, shown in figure 1, in odd level sweep circuit: the clock end CLK of shift LD module 1 is connected to CKV1 clock signal terminal, and another input end of logic module 2 is connected to CKV2 clock signal terminal; And in even level sweep circuit: the clock end CLK of shift LD module 1 is connected to CKV2 clock signal terminal, and another input end of logic module 2 is connected to CKV1 clock signal terminal, it should be noted that, the shift LD module that the embodiment of the present invention provides is identical with the function of prior art with logic module, by the control of different clocks signal, sweep circuit is made to realize the process scanned step by step; Wherein, logic module can be made up of a Sheffer stroke gate and a phase inverter, and buffer module is made up of two phase inverters, does not do concrete restriction to this embodiment of the present invention.
In addition, consider sweep circuit there will be in actual applications display device in improper power-off or start initial time have charge residue, and cause the situation of each node potential exception in circuit, and then it is abnormal to make sweep circuit work occur, shown in figure 1, in the shift LD module that the embodiment of the present invention provides, also include and reset end RST, according to the control of reset signal Reset, electricity work is initial on the display apparatus, first resets to sweep circuit at different levels.
As shown in the above, when touch control display apparatus is in the reading scan stage, handover module work and signal transmission module are all along first order sweep circuit to N level sweep circuit signal transmission, and the gate line sweep signal by selecting output module output logic circuit to provide; When touch control display apparatus is in touch-control sweep phase, handover module and signal transmission module are all along the multiplexing sweep circuit of the first order to the multiplexing sweep circuit signal transmission of M level, and the touch-control drive electrode sweep signal by selecting output module output logic circuit to provide.Technical scheme provided by the invention, the touch drive circuit of scanning touch-control drive electrode is multiplexed with by sweep circuit part being used for raster polar curve, therefore touch drive circuit is made without the need to the independent frame region at touch-control display panel, and then reduce the border width of touch-control display panel, meet the narrow frame requirement of touch control display apparatus.
Further, the touch control display apparatus that the embodiment of the present invention provides is embedded touch display device, and wherein, the public electrode of embedded touch display device is multiplexed with touch-control drive electrode.Touch-control drive electrode is multiplexed with by public electrode, in manufacturing process, only need a mould making process can form touch-control drive electrode and public electrode, without the need to public electrode and touch-control drive electrode masking respectively, not only save cost of manufacture, and improve production efficiency.Wherein, shown in figure 1, when public electrode is multiplexed with touch-control drive electrode, the first signal end S1 that the embodiment of the present invention provides is then common electrode signal end Vcom.Namely, in the reading scan stage, by the gate line sweep signal selecting the first output terminal output logic circuit of output module to provide, and the common electrode signal selecting the second output terminal of output module to export the first signal end (common electrode signal end) to provide, to make touch control display apparatus display frame; And at touch-control sweep phase, the first output terminal of output module is selected to export and the opposite polarity signal of gate line sweep signal, and select the second output terminal of output module to export the touch-control drive electrode sweep signal provided by logical circuit, carry out touch-control scanning to make touch control display apparatus.
In addition, shown in figure 2a, be the structural representation of a kind of handover module that the embodiment of the present invention provides, wherein, handover module comprises: the first phase inverter INV1, the first transmission unit TG1, the second transmission unit TG2 and the first transistor T1; Wherein,
The input end of the first phase inverter INV1, first control end of the first transmission unit TG1, second control end of the second transmission unit TG2 and the grid of the first transistor T1 are as the Enable Pin C of handover module, all be connected to the first control signal end, the output terminal of the first phase inverter INV1 is connected to second control end of the first transmission unit TG1 and first control end of the second transmission unit TG2;
The input end of the first transmission unit TG1 and the input end of the second transmission unit TG2 are as the input end IN of handover module, all be connected to the output terminal of the shift LD module of i-th grade of multiplexing sweep circuit, the first end of the first transistor T1 is connected to secondary signal end S2, second end of the first transistor T1 and the output terminal of the first transmission unit TG1 are all connected to the input end of the shift LD module of the next stage sweep circuit adjacent with i-th grade of multiplexing sweep circuit as the first output terminal OUT1 of handover module, the output terminal of the second transmission unit TG2 is connected to the second input end of signal transmission module as the second output terminal OUT2 of handover module.
As shown in the above, handover module be equivalent to one singly enter two go out transmission unit, its Enable Pin can only control the first transmission unit conducting or the second transmission unit conducting, wherein, when handover module is applied in the driving circuit that above-described embodiment provides, in the reading scan stage, the control signal of the Enable Pin of handover module controls the first transmission unit conducting, and control the second transmission unit cut-off, the start signal that then shift LD module in upper level sweep circuit exports by handover module transfers to the input end of the shift LD module of next stage sweep circuit by the first output terminal, now, handover module works in first order sweep circuit to N level sweep circuit side, and at touch-control sweep phase, the control signal of the Enable Pin of handover module controls the second transmission unit conducting, and control the first transmission unit cut-off, then the start signal that multiplexing for upper level sweep circuit exports is transferred to coupled signal transmission module by the second output terminal by the second output terminal by handover module, the multiplexing sweep circuit of next stage is transferred to by signal transmission module, and at touch-control sweep phase, the control signal of Enable Pin drives the first transistor conducting, the secondary signal that transmission secondary signal end provides is to the input end of the shift LD module in next stage sweep circuit, wherein, the secondary signal that secondary signal end provides is equivalent to shutdown signal, control next stage sweep circuit to close.
Shown in figure 2b, be the structural representation of a kind of signal transmission module that the embodiment of the present invention provides, wherein, signal transmission module comprises: the second phase inverter INV2, the 3rd transmission unit TG3 and the 4th transmission unit TG4; Wherein,
Second control end of the input end of the second phase inverter INV2, first control end of the 3rd transmission unit TG3 and the 4th transmission unit TG4 is as the Enable Pin C of signal transmission module, all be connected to the second control signal end, the output terminal of the second phase inverter INV2 is connected to second control end of the 3rd transmission unit TG3 and first control end of the 4th transmission unit TG4;
The input end of the 3rd transmission unit TG3 is as the first input end IN1 of signal transmission module, be connected to the output terminal of the shift LD module of the adjacent upper level sweep circuit of the multiplexing sweep circuit with the i-th+1 grade, the input end of the 4th transmission unit TG4 is as the second input end IN2 of signal transmission module, be connected to the second output terminal of handover module, the output terminal of the 3rd transmission unit TG3 and the output terminal of the 4th transmission unit TG4, as the output terminal OUT of signal transmission module, are all connected to the input end of the shift LD module of the i-th+1 grade multiplexing sweep circuit.
As shown in the above, the signal transmission module that the embodiment of the present invention provides is equivalent to a pair of and enters and singly go out transmission unit, and its Enable Pin can only control the 3rd transmission unit conducting or the 4th transmission unit conducting equally.Wherein, when handover module is applied in the driving circuit that above-described embodiment provides, in the reading scan stage, the control signal of the Enable Pin of signal transmission module controls the 3rd transmission unit conducting, and start signal shift LD module in upper level sweep circuit exported transfers to the input end of shift LD module in next stage sweep circuit by the output terminal of signal transmission module; And at touch-control sweep phase, the control signal of the Enable Pin of signal transmission module controls the 4th transmission unit conducting, the start signal that the second output terminal of connected handover module exports is transferred to the input end of shift LD module in the multiplexing sweep circuit of next stage.
And, shown in figure 2c, for a kind of structural representation selecting output module that the embodiment of the present invention provides, wherein, output module is selected to comprise: the 3rd phase inverter INV3, the 5th transmission unit TG5, the 6th transmission unit TG6, the 7th transmission unit TG7 and transistor seconds T2; Wherein,
Second control end of the input end of the 3rd phase inverter INV3, first control end of the 5th transmission unit TG5, the 6th transmission unit TG6, first control end of the 7th transmission unit TG7 and the grid of transistor seconds T2 are as the Enable Pin C selecting output module, all be connected to the 3rd control signal end, the output terminal of the 3rd phase inverter INV3 is connected to second control end of the 5th transmission unit TG5, first control end of the 6th transmission unit TG6 and second control end of the 7th transmission unit TG7;
The input end of the 5th transmission unit TG5 and the input end of the 6th transmission unit TG6 are as the first input end IN1 selecting output module, all be connected to the output terminal of logic module, the first end of transistor seconds T2 is connected to the 3rd signal end S3, second end of transistor seconds T2 and the output terminal of the 5th transmission unit TG5, as the first output terminal OUT1 selecting output module, are all connected to the input end of buffer module;
The input end of the 7th transmission unit TG7 is as the second input end IN2 selecting output module, be connected to the first signal end, the output terminal of the 6th transmission unit TG6 and the output terminal of the 7th transmission unit TG7, as the second output terminal OUT2 selecting output module, are all connected to touch-control drive electrode.
As shown in the above, the selection output module that the embodiment of the present invention provides is equivalent to a double-input double-output transmission unit, wherein, when selecting output module to be applied in the driving circuit that above-described embodiment provides, in the reading scan stage, the control signal of the Enable Pin of output module is selected to control the 5th transmission unit and the 7th transmission unit conducting, the gate line sweep signal selecting output module logic module to be provided is conveyed through the first output terminal and transfers in gate line, and the signal selecting output module to be provided by the first signal end transfers to touch-control drive electrode by the second output terminal simultaneously, and at touch-control sweep phase, the control signal of the Enable Pin of output module is selected to control the 5th transmission unit and the cut-off of the 7th transmission unit, and control the 6th transmission unit conducting, the touch-control drive electrode sweep signal that logical circuit provides by signal output module transfers to touch-control drive electrode by the second output terminal, and at touch-control sweep phase, the control signal of Enable Pin drives transistor seconds conducting, transmit the 3rd signal that the 3rd signal end provides to gate line, wherein, the 3rd signal that 3rd signal end provides is equivalent to shutdown signal, gate line is avoided to occur the situation of scanning.
Preferably, state the first transmission unit provided in embodiment on the invention and be transmission gate to the 7th transmission unit.And respectively with reference to shown in figure 2a to 2c, when the first control end to first control end of the 7th transmission unit TG7 of the first transmission unit TG1 is Low level effective end, second control end of the first transmission unit TG1 is high level live end to second control end of the 7th transmission unit TG7; Wherein, the first transistor T1 and transistor seconds T2 is N-type transistor.
In addition, the first control end stating the first transmission unit that embodiment provides on the invention is high level live end to the first control end of the 7th transmission unit, and the second control end of the first transmission unit is Low level effective end to the second control end of the 7th transmission unit; Wherein, the first transistor and transistor seconds are P-type crystal pipe.
In addition, state on the invention in handover module, signal transmission module and the selection output module provided in embodiment, the first transmission unit is Low level effective end to the first control end of the 7th transmission unit, and when the second control end is high level live end; Or the first transmission unit is high level live end to the first control end of the 7th transmission unit, and when the second control end is Low level effective end, the first control signal end, the second control signal end and the 3rd control signal end are identical control signal end.
Shown in Fig. 3 and Fig. 4, a kind of timesharing type of drive of the driving circuit that the embodiment of the present invention provides is described in detail, the structural representation of the another kind of driving circuit that Fig. 3 provides for the embodiment of the present invention, it should be noted that, the driving circuit that embodiment of the present invention Fig. 3 provides, first control signal end, second control signal end is identical with the control signal CV that the 3rd control signal end provides, namely, in the reading scan stage, control signal CV can control handover module simultaneously, signal transmission module and selection output module work in first order sweep circuit to N level sweep circuit side, and at touch-control sweep phase, control signal CV can control handover module simultaneously, signal transmission module and selection output module work in the multiplexing sweep circuit of the first order to the multiplexing sweep circuit side of M level, in addition, the driving circuit that embodiment of the present invention Fig. 3 provides, its first signal end is common electrode signal end, and namely in touch control display apparatus, public electrode is multiplexed with touch-control drive electrode, wherein, shown in composition graphs 4, the sequential chart of the driving circuit that the Fig. 3 provided for the embodiment of the present invention is corresponding,
When touch control display apparatus works, in a drive cycle Frame, first reading scan joint stage Frame1 is entered, one start signal STV is inputted to the input end of shift LD module in first order sweep circuit 101, then first order sweep circuit 101 is to the control of N level sweep circuit 10n according to clock signal CKV 1 and clock signal CKV 2, export gate line sweep signal (with reference to G1 to Gn in figure 4) step by step, at reading scan stage Frame1, control signal CV controls handover module, signal transmission module and selection output module all work in first order sweep circuit to N level sweep circuit side, after having scanned N level sweep circuit, then enter touch-control sweep phase Frame2, again a start signal STV is inputted to the input end of the shift LD module of first order sweep circuit, now, the reversal of poles of control signal CV, and then control handover module, signal transmission module and select output module all to work in the multiplexing sweep circuit of the first order to the multiplexing sweep circuit side of N level, and according to the control of clock signal CKV 1 and clock signal CKV 2, export touch-control drive electrode sweep signal (with reference to TX1 to TXm in figure 4) step by step.
It should be noted that, one in the driving circuit that above-mentioned type of drive just provides based on the embodiment of the present invention in all timesharing type of drive, above-mentioned timesharing type of drive is in a drive cycle, carries out all touch-control drive electrodes and scan after scanned to all gate lines; In other embodiments of the present invention, in a drive cycle, timesharing type of drive after sweep test gate line, can also scan all touch-control drive electrodes, then scans remaining gate line again; Or, in other embodiments of the present invention, in a drive cycle, timesharing type of drive can also after sweep test gate line, sweep test touch-control drive electrode, then sweep test gate line again, sweep test touch-control drive electrode again, until alternate sweep is complete, to this, the embodiment of the present invention does not do concrete restriction, needs to carry out specific design according to practical application.It should be noted that in addition, the form that can arrange in the driving circuit that each signal that embodiment of the present invention Fig. 4 provides equally just provides based on the embodiment of the present invention, but the present invention does not do concrete restriction to this, same needs carries out specific design according to practical application.
Accordingly, the embodiment of the present invention additionally provides a kind of touch-control display panel, and touch-control display panel comprises above-mentioned driving circuit.
And the embodiment of the present invention additionally provides a kind of touch control display apparatus, touch control display apparatus comprises above-mentioned touch-control display panel.
A kind of driving circuit, touch-control display panel and touch control display apparatus that the embodiment of the present invention provides, wherein, first order sweep circuit to the N level sweep circuit of driving circuit comprises the multiplexing sweep circuit of the first order to the multiplexing sweep circuit of M level, wherein, sweep circuit includes shift LD module, logic module and buffer module, and multiplexing sweep circuit also comprises selection output module, and driving circuit also comprises multiple handover module and multiple signal transmission module.When touch control display apparatus is in the reading scan stage, handover module work and signal transmission module are all along first order sweep circuit to N level sweep circuit signal transmission, and the gate line sweep signal by selecting output module output logic circuit to provide; When touch control display apparatus is in touch-control sweep phase, handover module and signal transmission module are all along the multiplexing sweep circuit of the first order to the multiplexing sweep circuit signal transmission of M level, and the touch-control drive electrode sweep signal by selecting output module output logic circuit to provide.The technical scheme that the embodiment of the present invention provides, the touch drive circuit of scanning touch-control drive electrode is multiplexed with by sweep circuit part being used for raster polar curve, therefore touch drive circuit is made without the need to the independent frame region at touch-control display panel, and then reduce the border width of touch-control display panel, meet the narrow frame requirement of touch control display apparatus.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.Be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to embodiment illustrated herein, but will meet the most wide region consistent with principle disclosed herein and features of novelty.
Claims (12)
1. a driving circuit, be applied to touch control display apparatus, it is characterized in that, described driving circuit comprises first order sweep circuit to N level sweep circuit, described sweep circuit comprises shift LD module, logic module and buffer module, described sweep circuit is used for raster polar curve, wherein, described first order sweep circuit to N level sweep circuit comprises the multiplexing sweep circuit of the first order to the multiplexing sweep circuit of M level, and described multiplexing sweep circuit also comprises: select output module, and, described driving circuit also comprises at least one handover module and at least one signal transmission module, described multiplexing sweep circuit is used for scanning described gate line in the reading scan stage, and at touch-control sweep phase scanning touch-control drive electrode, wherein, in described multiplexing sweep circuit:
The first input end of described selection output module is connected to the output terminal of described logic module, second input end of described selection output module is connected to the first signal end, first output terminal of described selection output module is connected to the input end of described buffer module, the output terminal of described buffer module is connected to described gate line, second output terminal of described selection output module is connected to described touch-control drive electrode, and the Enable Pin of described selection output module is connected to the 3rd control signal end;
And, in described driving circuit: the input end of described handover module is connected to the output terminal of the shift LD module of described i-th grade of multiplexing sweep circuit, first output terminal of described handover module is connected to the input end of the shift LD module of the next stage sweep circuit adjacent with described i-th grade of multiplexing sweep circuit, second output terminal of described handover module is connected to the second input end of described signal transmission module, and the Enable Pin of described handover module is connected to the first control signal end;
The first input end of described signal transmission module is connected to the output terminal of the shift LD module of the upper level sweep circuit adjacent with described the i-th+1 grade multiplexing sweep circuit, the output terminal of described signal transmission module is connected to the input end of the shift LD module of the i-th+1 grade multiplexing sweep circuit, the Enable Pin of described signal transmission module is connected to the second control signal end, wherein, N be greater than 2 integer, and M is less than N, 1=<i<=M-1.
2. driving circuit according to claim 1, is characterized in that, described touch control display apparatus is embedded touch display device, and wherein, the public electrode of described embedded touch display device is multiplexed with described touch-control drive electrode.
3. driving circuit according to claim 2, is characterized in that, described first signal end is common electrode signal end.
4. driving circuit according to claim 1, is characterized in that, described handover module comprises: the first phase inverter, the first transmission unit, the second transmission unit and the first transistor; Wherein,
The input end of described first phase inverter, the first control end of described first transmission unit, the second control end of described second transmission unit and the grid of described the first transistor are all connected to described first control signal end, and the output terminal of described first phase inverter is connected to the second control end of described first transmission unit and the first control end of described second transmission unit;
The input end of described first transmission unit and the input end of described second transmission unit are all connected to the output terminal of the shift LD module of described i-th grade of multiplexing sweep circuit, the first end of described the first transistor is connected to secondary signal end, second end of described the first transistor and the output terminal of described first transmission unit are all connected to the input end of the shift LD module of the next stage sweep circuit adjacent with described i-th grade of multiplexing sweep circuit, and the output terminal of described second transmission unit is connected to the second input end of described signal transmission module.
5. driving circuit according to claim 4, is characterized in that, the signal transmission module of described sweep circuit comprises: the second phase inverter, the 3rd transmission unit and the 4th transmission unit; Wherein,
Second control end of the input end of described second phase inverter, the first control end of described 3rd transmission unit and described 4th transmission unit is all connected to described second control signal end, and the output terminal of described second phase inverter is connected to the second control end of described 3rd transmission unit and the first control end of described 4th transmission unit;
The input end of described 3rd transmission unit is connected to the output terminal of the shift LD module of the upper level sweep circuit adjacent with described the i-th+1 grade multiplexing sweep circuit, the input end of described 4th transmission unit is connected to the second output terminal of described handover module, and the output terminal of described 3rd transmission unit and the output terminal of described 4th transmission unit are all connected to the input end of the shift LD module of described the i-th+1 grade multiplexing sweep circuit.
6. driving circuit according to claim 5, is characterized in that, described selection output module comprises: the 3rd phase inverter, the 5th transmission unit, the 6th transmission unit, the 7th transmission unit and transistor seconds; Wherein,
Second control end of the input end of described 3rd phase inverter, the first control end of the 5th transmission unit, the 6th transmission unit, the first control end of the 7th transmission unit and the grid of transistor seconds are all connected to described 3rd control signal end, and the output terminal of described 3rd phase inverter is connected to the second control end of described 5th transmission unit, the first control end of described 6th transmission unit and the second control end of described 7th transmission unit;
The input end of described 5th transmission unit, the input end of the 6th transmission unit are all connected to the output terminal of described logic module, the first end of described transistor seconds is connected to the 3rd signal end, and the second end of described transistor seconds and the output terminal of described 5th transmission unit are all connected to the input end of described buffer module;
The input end of described 7th transmission unit is connected to described first signal end, and the output terminal of described 6th transmission unit and the output terminal of described 7th transmission unit are all connected to described touch-control drive electrode.
7. driving circuit according to claim 6, is characterized in that, described first transmission unit is transmission gate to the 7th transmission unit.
8. driving circuit according to claim 7, it is characterized in that, first control end of described first transmission unit is Low level effective end to the first control end of the 7th transmission unit, and the second control end of described first transmission unit is high level live end to the second control end of the 7th transmission unit; Wherein, described the first transistor and described transistor seconds are N-type transistor.
9. driving circuit according to claim 7, it is characterized in that, first control end of described first transmission unit is high level live end to the first control end of the 7th transmission unit, and the second control end of described first transmission unit is Low level effective end to the second control end of the 7th transmission unit; Wherein, described the first transistor and transistor seconds are P-type crystal pipe.
10. driving circuit according to claim 8 or claim 9, it is characterized in that, described first control signal end, described second control signal end and described 3rd control signal end are identical control signal end.
11. 1 kinds of touch-control display panels, is characterized in that, described touch-control display panel comprises the driving circuit described in claim 1 ~ 10 any one.
12. 1 kinds of touch control display apparatus, is characterized in that, described touch control display apparatus comprises touch-control display panel according to claim 11.
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