CN104318885A - Touch display screen and time-sharing drive method thereof - Google Patents
Touch display screen and time-sharing drive method thereof Download PDFInfo
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- CN104318885A CN104318885A CN201410594893.7A CN201410594893A CN104318885A CN 104318885 A CN104318885 A CN 104318885A CN 201410594893 A CN201410594893 A CN 201410594893A CN 104318885 A CN104318885 A CN 104318885A
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Abstract
The invention discloses a touch display screen and a time-sharing drive method thereof. The touch display screen comprises a grid drive circuit, a touch scanning drive circuit and a touch signal transmission circuit, and the touch signal transmission circuit, the grid drive circuit and the touch scanning drive circuit are connected. The drive period of the touch display screen comprises a display stage and touch stage, and the touch scanning drive circuit outputs a first touch scanning signal to a touch scanning electrode in the touch display screen and outputs a second touch scanning signal to the touch signal transmission circuit in the touch stage. In the touch stage, the touch signal transmission circuit transmits the received second touch scanning signal to pull-up nodes of shifting registers on the next stage of N cascaded shifting registers, so that the pull-up nodes are changed, and voltage of the pull-up nodes is maintained. According to the technical scheme of the touch display screen and the time-sharing drive method of the touch display screen, horizontal strips can be effectively avoided in the display process of the touch display screen.
Description
Technical field
The present invention relates to circuit engineering field, particularly a kind of touching display screen and timesharing driving method thereof.
Background technology
Along with popularizing of smart mobile phone, touching display screen have also been obtained to be applied widely.When driving touching display screen, usually need to carry out timesharing driving to touching display screen.Particularly, each drive cycle of touching display screen comprises display stage and touch-control stage, and when showing the stage, the grid line that the gate driver circuit of touching display screen is touching display screen provides reading scan signal, realizes Presentation Function for touching display screen; When the touch-control stage, the touch-control scan electrode that the touch-control scan drive circuit of touching display screen is touching display screen provides the first touch scanning signals, realizes touch controllable function for touching display screen.
Summary of the invention
The invention provides a kind of touching display screen and timesharing driving method thereof, effectively can solve in prior art and cause touching display screen in procedure for displaying, there will be the problem of horizontal stripe because the touch-control stage is long.
For achieving the above object, the invention provides a kind of touching display screen, the drive cycle of described touching display screen comprises: display stage and touch-control stage, described touching display screen comprises: gate driver circuit, touch-control scan drive circuit and touching signals transmission circuit, and described touching signals transmission circuit is all connected with described gate driver circuit and described touch-control scan drive circuit;
Described gate driver circuit comprises: the shift register of M cascade, the grid line output display sweep signal of shift register when the described display stage successively to correspondence of the N number of cascade in described gate driver circuit, wherein N<M;
Described touch-control scan drive circuit exports the first touch scanning signals when the described touch-control stage to the touch-control scan electrode in described touching display screen, and exports the second touch scanning signals to described touching signals transmission circuit;
Described second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals transmission circuit when the described touch-control stage.
Alternatively, the value of N is 4.
Alternatively, described touching signals transmission circuit comprises: touching signals allocation units and P touching signals transmission unit, described touching signals allocation units are all connected with described touch-control scan drive circuit and described touching signals transmission unit, described touching signals transmission unit is connected with the pull-up node of the shift register of Q*N+1 level in described touching signals transmission circuit, wherein Q*N+1<M, the value of Q is [1, P];
Described second touch scanning signals for receiving described second touch scanning signals, and is dispensed to the touching signals transmission unit be connected with the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals allocation units;
Described touching signals transmission unit is used for the pull-up node described second touch scanning signals be assigned with being transferred to corresponding shift register.
Alternatively, described touching signals transmission unit comprises: thin film transistor (TFT), the grid of described thin film transistor (TFT) is connected with described touching signals allocation units, first pole of described thin film transistor (TFT) is connected with described touching signals allocation units, and the second pole of described thin film transistor (TFT) connects with the pull-up node of corresponding described shift register.
Alternatively, described touching signals transmission circuit is positioned at the neighboring area of array base palte.
For achieving the above object, the present invention also provides a kind of timesharing driving method of touching display screen, described timesharing driving method is based on touching display screen, described touching display screen comprises: gate driver circuit, touch-control scan drive circuit and touching signals transmission circuit, described touching signals transmission circuit is all connected with described gate driver circuit and described touch-control scan drive circuit, and described gate driver circuit comprises: the shift register of M cascade;
Described timesharing driving method comprises multiple drive cycle, and described drive cycle comprises:
Display the stage, the shift register of the N number of cascade in described gate driver circuit successively to the grid line output display sweep signal of correspondence, wherein N<M;
In the touch-control stage, described gate driver circuit stops exporting described reading scan signal, described touch-control scan drive circuit exports the first touch scanning signals to the touch-control scan electrode in described touching display screen, and exporting described second touch scanning signals to described touching signals transmission circuit, the second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals transmission circuit.
Alternatively, the value of N is 4.
Alternatively, described touching signals transmission circuit comprises: touching signals allocation units and P touching signals transmission unit, described touching signals allocation units are all connected with described touch-control scan drive circuit and described touching signals transmission unit, described touching signals transmission unit is connected with the pull-up node of the shift register of Q*N+1 level in described touching signals transmission circuit, wherein Q*N+1<M, the value of Q is [1, P];
Wherein, described to described second touch scanning signals of described touching signals transmission circuit output, the pull-up node that the second touch scanning signals received is transferred to the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals transmission circuit is specially:
Described second touch scanning signals for receiving described second touch scanning signals, and is dispensed to the touching signals transmission unit be connected with the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals allocation units;
Described touching signals transmission unit is used for the pull-up node described second touch scanning signals be assigned with being transferred to corresponding shift register.
Alternatively, it is characterized in that, described touching signals transmission unit comprises: thin film transistor (TFT), the grid of described thin film transistor (TFT) is connected with described touching signals allocation units, first pole of described thin film transistor (TFT) is connected with described touching signals allocation units, and the second pole of described thin film transistor (TFT) connects with the pull-up node of corresponding described shift register.
Alternatively, described touching signals transmission circuit is positioned at the neighboring area of array base palte.
The present invention has following beneficial effect:
The invention provides a kind of touching display screen and timesharing driving method thereof, wherein this touching display screen comprises: gate driver circuit, touch-control scan drive circuit and touching signals transmission circuit, the drive cycle that touching signals transmission circuit is all connected touching display screen with gate driver circuit and touch-control scan drive circuit comprises: show stage and touch-control stage, touch-control scan drive circuit exports the first touch scanning signals when the touch-control stage to the touch-control scan electrode in touching display screen, and exports the second touch scanning signals to touching signals transmission circuit; The second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at N number of cascade by touching signals transmission circuit when the touch-control stage, to charge to this pull-up node, maintain the voltage of this pull-up node.Technical scheme of the present invention can make when a rear drive cycle starts, the shift register of the first order in a corresponding rear drive cycle can export a normal reading scan signal to corresponding grid line, now to should the pixel of grid line can normally show, thus solve the problem that touching display screen there will be horizontal stripe in procedure for displaying.
Accompanying drawing explanation
The schematic diagram of signal in driver' s timing when Fig. 1 is corresponding continuous two drive cycles of touching display screen in prior art and corresponding grid line and touch-control scan electrode;
The circuit diagram of the touching display screen that Fig. 2 provides for the embodiment of the present invention one;
Fig. 3 is the schematic diagram of signal in driver' s timing during continuous two drive cycles of the correspondence of touching display screen shown in Fig. 2 and corresponding grid line, touch-control scan electrode and touching signals transmission unit;
The process flow diagram of a drive cycle in the timesharing driving method of the touching display screen that Fig. 4 provides for the embodiment of the present invention two.
Embodiment
For making those skilled in the art understand technical scheme of the present invention better, below in conjunction with accompanying drawing, touching display screen provided by the invention and timesharing driving method thereof are described in detail.
The schematic diagram of signal in driver' s timing when Fig. 1 is corresponding continuous two drive cycles of touching display screen in prior art and corresponding grid line and touch-control scan electrode, as shown in Figure 1, T
11and T
12represent previous drive cycle T respectively
1the display stage and the touch-control stage, T
21and T
22represent a rear drive cycle T respectively
2the display stage and the touch-control stage; CLK and CLKB represents the first clock signal and second clock signal respectively, and the first clock signal clk and second clock signal CLKB are two signals that sequential is contrary, for shift register each in control gate driving circuit to the output of reading scan signal; TE represents the touch-control scan electrode in touching display screen; G1 ~ G9 represents 9 grid lines be arranged in order in touching display screen respectively.
At previous drive cycle T
1display stage T
11in, gate driver circuit is successively to grid line G1, G2, G3, G4 output display sweep signal; At previous drive cycle T
1touch-control stage T
12in, the first clock signal clk, second clock signal CLKB stop exporting, and namely gate driver circuit stops output display sweep signal, and now touch-control scan drive circuit exports the first touch scanning signals to touch-control scan electrode TE.
At a rear drive cycle T
2display stage T
21in, touch-control scan drive circuit stops exporting the first touch scanning signals to touch-control scan electrode TE, and now gate driver circuit is successively to grid line G5, G6, G7, G8 output display sweep signal; At a rear drive cycle T
2touch-control stage T
22in, the first clock signal clk, second clock signal CLKB stop exporting, and now touch-control scan drive circuit exports the first touch scanning signals to touch-control scan electrode TE.
But, in actual driving process, the voltage (the A1 region see in Fig. 1) of the reading scan signal in grid line G5 is lower than normal voltage, thus cause grid line G5 cannot the one-row pixels of driven corresponding to it, namely corresponding with grid line G5 one-row pixels cannot normally show, and then causes touching display screen in procedure for displaying, there will be the phenomenon of horizontal stripe.The reason of above-mentioned phenomenon is caused to be, due to touch-control stage T
12duration longer, the pull-up node in the shift register be therefore connected with grid line G5 is because of at touch-control stage T
12discharge and make this point voltage be in reduced levels, thus making at a rear drive cycle T
2display stage T
21time the voltage of the reading scan signal of shift register output that is connected with grid line G5 lower.
In addition, when repeating above-mentioned drive cycle, Article 1 grid line in each drive cycle corresponding is (see the A2 region in Fig. 1, such as grid line G9) in the voltage of reading scan signal all lower, thus the phenomenon of horizontal stripe is very serious to cause touching display screen to occur in procedure for displaying.
The circuit diagram of the touching display screen that Fig. 2 provides for the embodiment of the present invention one, as shown in Figure 2, this touching display screen comprises: gate driver circuit 2, touch-control scan drive circuit 3 and touching signals transmission circuit 4, touching signals transmission circuit 4 is all connected with gate driver circuit 2 and touch-control scan drive circuit 3.The drive cycle of the touching display screen that the present embodiment provides comprises: display stage and touch-control stage.
In the present embodiment, gate driver circuit 2 comprises: the shift register of M cascade, the shift register of the N number of cascade in gate driver circuit 2 when showing the stage successively to the grid line output display sweep signal of correspondence, Presentation Function is realized, wherein N<M for touching display screen.
Touch-control scan drive circuit 3 exports the first touch scanning signals when the touch-control stage to the touch-control scan electrode TE in touching display screen, realizes touch controllable function for touching display screen.Meanwhile, touch-control scan drive circuit 3 also exports the second touch scanning signals to touching signals transmission circuit 4 when the touch-control stage; The second touch scanning signals received is transferred to the pull-up node PU of the shift register of the next stage of the shift register being positioned at N number of cascade by touching signals transmission circuit 4 when the touch-control stage, to charge to the pull-up node PU of shift register (i.e. the shift register of the first order of a corresponding rear drive cycle) of next stage of the shift register (i.e. whole shift register of corresponding previous drive cycle) being arranged in N number of cascade, thus the voltage of this pull-up node PU is made to be in a higher level.
It should be noted that, two identical signals that in the present embodiment, the first touch scanning signals and the second touch scanning signals produce for touch-control scan drive circuit 3.
In the inventive solutions, voltage due to the pull-up node PU of the shift register of the first order in the rear drive cycle of correspondence is in a higher level, therefore, when a rear drive cycle starts, the shift register of the first order in a corresponding rear drive cycle can export a normal reading scan signal to corresponding grid line, now to should the pixel of grid line can normally show, thus solve the problem that touching display screen there will be horizontal stripe in procedure for displaying.
In the present embodiment, alternatively, touching signals transmission circuit 4 comprises: touching signals allocation units 5 and P touching signals transmission unit, touching signals allocation units 5 are all connected with touch-control scan drive circuit 3 and touching signals transmission unit, touching signals transmission unit is connected with the pull-up node PU of the shift register of Q*N+1 level in touching signals transmission circuit 4, wherein the value of Q*N+1<M, Q is [1, P].Touching signals allocation units 5 are for receiving the second touch scanning signals, and the second touch scanning signals being dispensed to the touching signals transmission unit be connected with the pull-up node PU of the shift register of the next stage of the shift register being positioned at N number of cascade, touching signals transmission unit is used for the pull-up node PU the second touch scanning signals be assigned with being transferred to corresponding shift register.Further alternatively, touching signals transmission unit comprises: thin film transistor (TFT), the grid of thin film transistor (TFT) is connected with touching signals allocation units 5, first pole of thin film transistor (TFT) is connected with touching signals allocation units 5, and the second pole of thin film transistor (TFT) connects with the pull-up node PU of corresponding shift register.
It should be noted that, in the present embodiment, under the prerequisite that the value of N is fixing, the value of P is relevant to the sum M of shift register in gate driver circuit 2, and wherein P, M, N meet following relation: P*N+1<M.Only exemplaryly in fig. 2 depict 2 touching signals transmission unit TR_1 and touching signals transmission unit TR_2, this can't produce restriction to technical scheme of the present invention.
Be described in detail below in conjunction with the driving process of accompanying drawing to continuous two drive cycles of the touching display screen that the present embodiment provides.
Fig. 3 is the schematic diagram of signal in driver' s timing during continuous two drive cycles of the correspondence of touching display screen shown in Fig. 2 and corresponding grid line, touch-control scan electrode and touching signals transmission unit, as shown in Figure 3, and T
11represent previous drive cycle T
1in the display stage, T
12represent previous drive cycle T
1the touch-control stage, T
21represent a rear drive cycle T
2in the display stage, T
22represent a rear drive cycle T
2in the touch-control stage.
Those skilled in the art it is easily understood that, touching display screen provided by the present invention also comprises signal circuit board 1, wherein, for providing the signal wire of the electric signal such as the first clock signal clk, second clock signal CLKB, initialize signal STV, ground level Vss to be arranged on signal circuit board 1.
In addition, the situation being 4 with the value of N in being described below is described, and namely in a display stage, 4 shift registers are respectively and provide reading scan signal to 4 grid lines of correspondence successively.It should be noted that, in the present embodiment the value of N be 4 situation only play exemplary effect, this does not produce restriction to technical scheme of the present invention, and in the present invention, N is positive integer.
At previous drive cycle T
1:
At display stage T
11, shift register SR_1, SR_2, SR_3, the SR_4 of 4 cascades in gate driver circuit 2 are successively respectively to grid line G1, G2, G3, G4 output display sweep signal of correspondence.
At touch-control stage T
12, the first clock signal clk, second clock signal CLKB stop exporting.Touch-control scan drive circuit 3 exports the first touch scanning signals to the touch-control scan electrode TE in touching display screen, simultaneously, touch-control scan drive circuit 3 also exports the second touch scanning signals to touching signals allocation units 5 when the touch-control stage, the second touch scanning signals received is dispensed to and the shift register SR_1 being positioned at 4 cascades by touching signals allocation units 5, SR_2, SR_3, the touching signals transmission unit TR_1 of the pull-up node PU connection of the shift register SR_5 of SR_4 next stage, thin film transistor (TFT) TFT_1 conducting in touching signals transmission unit TR_1, second touch scanning signals is transferred to the pull-up node PU of shift register SR_5 by touching signals transmission unit TR_1, to charge to the pull-up node PU being positioned at shift register SR_5.
At a rear drive cycle T
2:
At display stage T
21, the first touch scanning signals, the second touch-control scanning letter stop exporting, and shift register SR_5, SR_6, SR_7, the SR_8 of 4 cascades in gate driver circuit 2 are successively respectively to grid line G5, G6, G7, G8 output display sweep signal of correspondence.Because the pull-up node PU of shift register SR_5 is at previous drive cycle T
1in touch-control stage T
12charged in advance, therefore at a rear drive cycle T
2during beginning, the voltage of the pull-up node PU of shift register SR_5 is in a higher level, shift register SR_5 can export a normal reading scan signal (the B1 region see in Fig. 3) to corresponding grid line G5, now to should the pixel of grid line G5 can normally show.
At touch-control stage T
22, the first clock signal clk, second clock signal CLKB stop exporting.Touch-control scan drive circuit 3 exports the first touch scanning signals to the touch-control scan electrode TE in touching display screen, simultaneously, touch-control scan drive circuit 3 also exports the second touch scanning signals to touching signals allocation units 5 when the touch-control stage, the second touch scanning signals received is dispensed to and the shift register SR_5 being positioned at 4 cascades by touching signals allocation units 5, SR_6, SR_7, the touching signals transmission unit TR_2 of the pull-up node PU connection of the shift register SR_9 of SR_8 next stage, thin film transistor (TFT) TFT_2 conducting in touching signals transmission unit TR_2, second touch scanning signals is transferred to the pull-up node PU of shift register SR_9 by touching signals transmission unit TR_2, to charge to the pull-up node PU being positioned at shift register SR_9.
When repeating above-mentioned drive cycle, Article 1 grid line in each drive cycle corresponding is (see the B1 region in Fig. 3, such as grid line G9) in the voltage of reading scan signal all normal, thus avoid the phenomenon that horizontal stripe appears in touching display screen in procedure for displaying.
In the present embodiment, touching signals transmission circuit 4 is specifically positioned at the neighboring area of array base palte.
The embodiment of the present invention one provides a kind of touching display screen, this touching display screen comprises: gate driver circuit 2, touch-control scan drive circuit 3 and touching signals transmission circuit 4, wherein the second touch scanning signals received to be transferred to the pull-up node of the shift register of the first order in a corresponding rear drive cycle by this touching signals transmission circuit 4 for the touch-control stage at previous drive cycle, thus when a rear drive cycle starts, the shift register of the first order in a corresponding rear drive cycle can export a normal reading scan signal to corresponding grid line, now to should the pixel of grid line can normally show, thus solve the problem that touching display screen there will be horizontal stripe in procedure for displaying.
The embodiment of the present invention two provides a kind of timesharing driving method of touching display screen, this timesharing driving method is based on touching display screen, this touching display screen comprises: gate driver circuit, touch-control scan drive circuit and touching signals transmission circuit, touching signals transmission circuit is all connected with gate driver circuit and touch-control scan drive circuit, gate driver circuit comprises: the shift register of M cascade, and this timesharing driving method comprises multiple drive cycle.
The process flow diagram of a drive cycle in the timesharing driving method of the touching display screen that Fig. 4 provides for the embodiment of the present invention two, as shown in Figure 4, this drive cycle comprises:
Step 101: display the stage, the shift register of the N number of cascade in gate driver circuit successively to the grid line output display sweep signal of correspondence, wherein N<M.
Step 101 is identical with the process showing the stage in prior art, is no longer described in detail herein.
Step 102: in the touch-control stage, gate driver circuit stops output display sweep signal, touch-control scan drive circuit exports the first touch scanning signals to the touch-control scan electrode in touching display screen, and exporting the second touch scanning signals to touching signals transmission circuit, the second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at N number of cascade by touching signals transmission circuit.
In a step 102, the pull-up node of shift register (i.e. the shift register of the first order of a corresponding rear drive cycle) of next stage of the second touch scanning signals produced due to gate driver circuit to the shift register being arranged in N number of cascade charges, even if the time therefore residing for step 102 is longer, but the voltage being arranged in the pull-up node of the shift register of the next stage of the shift register of N number of cascade also can maintain higher level.When a rear drive cycle starts, the shift register of the first order in a corresponding rear drive cycle can export a normal reading scan signal to corresponding grid line, now to should the pixel of grid line can normally show.
Alternatively, the value of N is 4.
Alternatively, touching signals transmission circuit comprises: touching signals allocation units and P touching signals transmission unit, touching signals allocation units are all connected with touch-control scan drive circuit and touching signals transmission unit, touching signals transmission unit is connected with the pull-up node of the shift register of Q*N+1 level in touching signals transmission circuit, wherein Q*N+1<M, the value of Q is [1, P];
Wherein, export the second touch scanning signals to touching signals transmission circuit, the pull-up node that the second touch scanning signals received transfers to the shift register of the next stage of the shift register being positioned at N number of cascade is specially by touching signals transmission circuit:
Second touch scanning signals for receiving the second touch scanning signals, and is dispensed to the touching signals transmission unit be connected with the pull-up node of the shift register of the next stage of the shift register being positioned at N number of cascade by touching signals allocation units;
Touching signals transmission unit is used for the pull-up node the second touch scanning signals be assigned with being transferred to corresponding shift register.
Alternatively, touching signals transmission unit comprises: thin film transistor (TFT), the grid of thin film transistor (TFT) is connected with touching signals allocation units, and the first pole of thin film transistor (TFT) is connected with touching signals allocation units, and the second pole of thin film transistor (TFT) connects with the pull-up node of corresponding shift register.
Alternatively, touching signals transmission circuit is positioned at the neighboring area of array base palte.
The embodiment of the present invention two provides a kind of timesharing driving method of touching display screen, wherein this timesharing driving method comprises multiple drive cycle, this drive cycle comprises: in the display stage, the shift register of the N number of cascade in gate driver circuit successively to the grid line output display sweep signal of correspondence, wherein N<M; In the touch-control stage, gate driver circuit stops output display sweep signal, touch-control scan drive circuit exports the first touch scanning signals to the touch-control scan electrode in touching display screen, and exporting the second touch scanning signals to touching signals transmission circuit, the second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at N number of cascade by touching signals transmission circuit.The second touch scanning signals received to be transferred to the pull-up node of the shift register of the first order in a corresponding rear drive cycle by the technical scheme of the application by the touch-control stage at previous drive cycle, thus when a rear drive cycle starts, the shift register of the first order in a corresponding rear drive cycle can export a normal reading scan signal to corresponding grid line, now to should the pixel of grid line can normally show, thus solve the problem that touching display screen there will be horizontal stripe in procedure for displaying.
Be understandable that, the illustrative embodiments that above embodiment is only used to principle of the present invention is described and adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a touching display screen, it is characterized in that, the drive cycle of described touching display screen comprises: display stage and touch-control stage, described touching display screen comprises: gate driver circuit, touch-control scan drive circuit and touching signals transmission circuit, and described touching signals transmission circuit is all connected with described gate driver circuit and described touch-control scan drive circuit;
Described gate driver circuit comprises: the shift register of M cascade, the grid line output display sweep signal of shift register when the described display stage successively to correspondence of the N number of cascade in described gate driver circuit, wherein N<M;
Described touch-control scan drive circuit exports the first touch scanning signals when the described touch-control stage to the touch-control scan electrode in described touching display screen, and exports the second touch scanning signals to described touching signals transmission circuit;
Described second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals transmission circuit when the described touch-control stage.
2. touching display screen according to claim 1, is characterized in that, the value of N is 4.
3. touching display screen according to claim 1, it is characterized in that, described touching signals transmission circuit comprises: touching signals allocation units and P touching signals transmission unit, described touching signals allocation units are all connected with described touch-control scan drive circuit and described touching signals transmission unit, described touching signals transmission unit is connected with the pull-up node of the shift register of Q*N+1 level in described touching signals transmission circuit, wherein Q*N+1<M, the value of Q is [1, P];
Described second touch scanning signals for receiving described second touch scanning signals, and is dispensed to the touching signals transmission unit be connected with the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals allocation units;
Described touching signals transmission unit is used for the pull-up node described second touch scanning signals be assigned with being transferred to corresponding shift register.
4. touching display screen according to claim 3, it is characterized in that, described touching signals transmission unit comprises: thin film transistor (TFT), the grid of described thin film transistor (TFT) is connected with described touching signals allocation units, first pole of described thin film transistor (TFT) is connected with described touching signals allocation units, and the second pole of described thin film transistor (TFT) connects with the pull-up node of corresponding described shift register.
5. touching display screen according to claim 1, is characterized in that, described touching signals transmission circuit is positioned at the neighboring area of array base palte.
6. the timesharing driving method of a touching display screen, it is characterized in that, described timesharing driving method is based on touching display screen, described touching display screen comprises: gate driver circuit, touch-control scan drive circuit and touching signals transmission circuit, described touching signals transmission circuit is all connected with described gate driver circuit and described touch-control scan drive circuit, and described gate driver circuit comprises: the shift register of M cascade;
Described timesharing driving method comprises multiple drive cycle, and described drive cycle comprises:
Display the stage, the shift register of the N number of cascade in described gate driver circuit successively to the grid line output display sweep signal of correspondence, wherein N<M;
In the touch-control stage, described gate driver circuit stops exporting described reading scan signal, described touch-control scan drive circuit exports the first touch scanning signals to the touch-control scan electrode in described touching display screen, and exporting described second touch scanning signals to described touching signals transmission circuit, the second touch scanning signals received is transferred to the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals transmission circuit.
7. the timesharing driving method of touching display screen according to claim 6, is characterized in that, the value of N is 4.
8. the timesharing driving method of touching display screen according to claim 6, it is characterized in that, described touching signals transmission circuit comprises: touching signals allocation units and P touching signals transmission unit, described touching signals allocation units are all connected with described touch-control scan drive circuit and described touching signals transmission unit, described touching signals transmission unit is connected with the pull-up node of the shift register of Q*N+1 level in described touching signals transmission circuit, wherein Q*N+1<M, the value of Q is [1, P];
Wherein, described to described second touch scanning signals of described touching signals transmission circuit output, the pull-up node that the second touch scanning signals received is transferred to the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals transmission circuit is specially:
Described second touch scanning signals for receiving described second touch scanning signals, and is dispensed to the touching signals transmission unit be connected with the pull-up node of the shift register of the next stage of the shift register being positioned at described N number of cascade by described touching signals allocation units;
Described touching signals transmission unit is used for the pull-up node described second touch scanning signals be assigned with being transferred to corresponding shift register.
9. the timesharing driving method of touching display screen according to claim 8, it is characterized in that, described touching signals transmission unit comprises: thin film transistor (TFT), the grid of described thin film transistor (TFT) is connected with described touching signals allocation units, first pole of described thin film transistor (TFT) is connected with described touching signals allocation units, and the second pole of described thin film transistor (TFT) connects with the pull-up node of corresponding described shift register.
10. the timesharing driving method of touching display screen according to claim 6, is characterized in that, described touching signals transmission circuit is positioned at the neighboring area of array base palte.
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104795018A (en) * | 2015-05-08 | 2015-07-22 | 上海天马微电子有限公司 | Shifting register, driving method, grid drive circuit and display device |
| CN104820520A (en) * | 2015-05-08 | 2015-08-05 | 厦门天马微电子有限公司 | Array substrate, touch display panel and driving method of array substrate |
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| CN104795018A (en) * | 2015-05-08 | 2015-07-22 | 上海天马微电子有限公司 | Shifting register, driving method, grid drive circuit and display device |
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| CN106356030A (en) * | 2015-07-17 | 2017-01-25 | 群创光电股份有限公司 | Gate driving circuit |
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| US10488961B2 (en) | 2015-07-17 | 2019-11-26 | Innolux Corporation | Gate driving circuit for driving a pixel array having a trigger circuit for receiving a touch sensing signal |
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