CN109584772A - A kind of display panel, device and driving method - Google Patents
A kind of display panel, device and driving method Download PDFInfo
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- CN109584772A CN109584772A CN201811572471.4A CN201811572471A CN109584772A CN 109584772 A CN109584772 A CN 109584772A CN 201811572471 A CN201811572471 A CN 201811572471A CN 109584772 A CN109584772 A CN 109584772A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention provides a kind of display panel, device and driving method, there is the unequal technical problem for leading to display panel display effect difference of public voltage signal for being input to each public electrode block for solving the prior art.Wherein, the display area of the display panel includes the public electrode block of multiple array settings, and public electrode block multiplexing is used as touch control electrode；The non-display area of the display panel includes signal control line, at least one gate driving circuit, control circuit and at least a pair of of clock cable；The input terminal of the control circuit is electrically connected at least a pair of of clock cable, the signal control line, and the output end of the control circuit is electrically connected with the respectively public electrode block；The control circuit is used for: the clock signal that the control signal provided according to the signal control line and at least a pair of of clock cable provide, respectively the public electrode block is electrically connected to each other in the display stage for control, is mutually disconnected in the touch-control stage.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of display panel, device and driving method.
Background technique
With the development of self-tolerant touch display technology, the public electrode of the array substrate of display panel can be also served as certainly
The touch-control sensing electrode of appearance formula touch control detection, is driven by timesharing, the carry out touch-control control of timesharing sequence and display control, Ke Yitong
Shi Shixian touch-control and display function.In this way, touch-control sensing electrode is directly integrated in display panel, greatly reduces and be fabricated to
This, improves production efficiency, and reduce plate thickness.
With reference to Fig. 1, Fig. 1 is a kind of structural schematic diagram of display panel common in the art, comprising: phase on substrate
To the common electrode layer and routing layer of setting.Wherein, common electrode layer is divided into the public electrode block 11 of multiple array arrangements,
Routing layer includes a plurality of cabling 12, and cabling 12 connects one to one with public electrode block 11；The integrated circuit 13 of display panel is set
It sets in the lower end of array, public voltage signal is conveyed to by each public electrode block 11 by a plurality of cabling 12 of routing layer.
It will be seen from figure 1 that the length of the cabling 12 of the public electrode block 11 of connection 13 distal end of integrated circuit is far longer than
The length of the cabling 12 of the public electrode block 11 of 13 proximal end of integrated circuit is connected, however public voltage signal is during transmission
It will receive the influence of cabling self-resistance and capacitor, the length of cabling 12 is different to will lead to the public affairs of integrated circuit 13 proximally and distally
The delay of common voltage signal is different, eventually lead to be input to each public electrode block 11 public voltage signal it is unequal, influence
The homogeneity shown in face, size of display panels is bigger, influences to be more obvious.
Summary of the invention
The embodiment of the present invention provides a kind of display panel, device and driving method, and for solving the prior art, there are defeated
Enter the unequal technical problem for leading to display panel display effect difference of public voltage signal to each public electrode block.
In a first aspect, the embodiment of the present invention provides a kind of display panel, it is divided into display area and non-display area；It is described aobvious
Show that region includes the public electrode block of multiple array settings, the public electrode block multiplexing is used as touch control electrode；It is described non-display
Region includes signal control line, at least one gate driving circuit, control circuit and at least a pair of of clock cable；
In each pair of clock cable and at least one described gate driving circuit at least a pair of of clock cable
Each gate driving circuit correspond electrical connection, at least a pair of of clock cable is for exporting described in clock signal control
At least one gate driving circuit is in display stage work；
The input terminal of the control circuit is electrically connected at least a pair of of clock cable, the signal control line, institute
The output end for stating control circuit is electrically connected with each public electrode block；The control circuit is used for: being controlled according to the signal
The clock signal that the control signal and at least a pair of of clock cable that line provides provide, controls each public electrode block
It is electrically connected to each other in the display stage, is mutually disconnected in the touch-control stage；
Wherein, if the signal control line provide control signal the display stage be high level, in the touching
The control stage is low level, is high level in the touch-control stage if being low level in the display stage.
Present embodiment makes control circuit according to letter by the way that control circuit is arranged in the non-display area of display panel
The clock signal of control signal and gate driving circuit that number control line provides controls each public electrode block in display stage phase
Mutually electrical connection, mutually disconnects in the touch-control stage, under the premise of guaranteeing that the normal timesharing of display panel drives work, solves due to walking
The different technical problem of the different delay that will lead to the public voltage signal of integrated circuit proximally and distally of the length of line, so that most
Cause the public voltage signal for being input to each public electrode block equal eventually, improve the homogeneity shown in face, improves display surface
The display effect of plate.Simultaneously as the clock signal that control circuit uses is the clock signal of common grid driving circuit, therefore
Wiring very simple, is conducive to the thinning of display panel, and process costs are low.
Second aspect, the embodiment of the present invention provide a kind of display device, including such as first aspect of the embodiment of the present invention or the
Display panel described in any optional embodiment of one side.
The third aspect, the embodiment of the present invention provide a kind of driving method, be applied to such as first aspect of the embodiment of the present invention or
Display panel described in any optional embodiment of first aspect, this method comprises:
Clock signal is loaded to each pair of clock cable at least a pair of of clock cable, and signal control line is added
Control signal is carried, so that control signal and at least a pair of of clock that control circuit is provided according to the signal control line are believed
The clock signal that number line provides, controls each public electrode block and is electrically connected to each other in the display stage, mutually disconnect in the touch-control stage.
The one or more technical solutions provided in the embodiment of the present invention, have at least the following technical effects or advantages:
Technical solution of the embodiment of the present invention makes control electricity by the way that control circuit is arranged in the non-display area of display panel
The clock signal of control signal and gate driving circuit that road is provided according to signal control line controls each public electrode block aobvious
Show that the stage is electrically connected to each other, is mutually disconnected in the touch-control stage, under the premise of guaranteeing that the normal timesharing of display panel drives work, solution
The different technology that postpones that certainly will lead to the public voltage signal of integrated circuit proximally and distally since the length of cabling is different is asked
Topic so that eventually lead to be input to each public electrode block public voltage signal it is equal, improve face in display homogeneity, change
The display effect of kind display panel.Simultaneously as the clock signal that control circuit uses is the clock of common grid driving circuit
Signal, therefore wiring very simple, are conducive to the thinning of display panel, and process costs are low.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly introduced, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without any creative labor, it can also be obtained according to these attached drawings
His attached drawing.
Fig. 1 is the structural schematic diagram of display panel in the prior art；
A kind of structural schematic diagram of possible display panel in Fig. 2 embodiment of the present invention；
A kind of cabling mode schematic diagram of possible signal control line in Fig. 3 a embodiment of the present invention；
The cabling mode schematic diagram of alternatively possible signal control line in Fig. 3 b embodiment of the present invention；
A kind of structural schematic diagram of possible control circuit in Fig. 4 embodiment of the present invention；
A kind of structural schematic diagram of possible conversion circuit in Fig. 5 embodiment of the present invention；
A kind of structural schematic diagram of possible switching circuit in Fig. 6 a embodiment of the present invention；
The structural schematic diagram of alternatively possible switching circuit in Fig. 6 b embodiment of the present invention；
The structural schematic diagram of another possible switching circuit in Fig. 6 c embodiment of the present invention；
The structural schematic diagram of another possible switching circuit in Fig. 6 d embodiment of the present invention；
The structural schematic diagram of alternatively possible display panel in Fig. 7 embodiment of the present invention；
The schematic diagram of CK1, CKB1, CK2, CKB2 and Goff signal in Fig. 8 embodiment of the present invention；
The schematic diagram of CK1, CKB1, CK2, CKB2, Goff and SW signal in Fig. 9 embodiment of the present invention；
The structural schematic diagram of alternatively possible display panel in Figure 10 embodiment of the present invention；
The schematic diagram of CK1, CKB1, CK2, CKB2 and Goff signal in Figure 11 embodiment of the present invention；
The schematic diagram of CK1, CKB1, CK2, CKB2, Goff and SW signal in Figure 12 embodiment of the present invention.
Specific embodiment
Technical solution of the present invention is described in detail below by attached drawing and specific embodiment, it should be understood that the present invention
Specific features in embodiment and embodiment are the detailed description to technical solution of the present invention, rather than to the technology of the present invention
The restriction of scheme, in the absence of conflict, the technical characteristic in the embodiment of the present invention and embodiment can be combined with each other.Its
In, the shapes and sizes of all parts do not react its actual proportions in attached drawing, are merely to illustrate the embodiment of the present invention.
It is to be appreciated that in the description of the embodiment of the present invention, the vocabulary such as " first ", " second " are only used for distinguishing and retouch
The purpose stated, is not understood to indicate or imply relative importance, can not be interpreted as indication or suggestion sequence.In the present invention
In the description of embodiment " multiple ", refer to two or more.
Term "and/or" in the embodiment of the present invention, a kind of only incidence relation for describing affiliated partner, expression can be with
There are three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three feelings of individualism B
Condition.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
The embodiment of the present invention provides a kind of display panel, device and driving method, and for solving the prior art, there are defeated
Enter the unequal technical problem for leading to display panel display effect difference of public voltage signal to each public electrode block.
Fig. 2 is referred to, which is divided into display area 21 and non-display area 22；It include multiple in display area 21
The public electrode block 211 of array setting, the multiplexing of public electrode block 211 are used as touch control electrode；It include signal in non-display area 22
Control line 221, at least one gate driving circuit 222, control circuit 223, at least a pair of of clock cable 224 and integrated electricity
Road 225；
In each pair of clock cable 224 and at least one gate driving circuit 222 at least a pair of of clock cable 224
Each gate driving circuit 222 correspond electrical connection, at least a pair of of clock cable 224 for export clock signal control to
A few gate driving circuit 222 is in display stage work；It should be noted that it includes two that each pair of clock cable 224 is practical
Root clock cable, for the ease of showing in Fig. 2, each pair of clock cable 224 is only characterized with a solid line；
The input terminal of control circuit 223 is electrically connected at least a pair of of clock cable 224, signal control line 221, control electricity
The output end on road 223 is electrically connected with each public electrode block 211；Control circuit 223 is used for: being provided according to signal control line 221
The clock signal that signal and at least a pair of of clock cable 224 provide is controlled, controls each public electrode block 211 in the display stage
It is electrically connected to each other, is mutually disconnected in the touch-control stage；
Wherein, if signal control line 221 provide control signal display the stage be high level, the touch-control stage be it is low
Level is high level in the touch-control stage if being low level in the display stage.
It should be noted that in the specific implementation, gate driving circuit 222, clock cable 224 and public electrode block
211 quantity has very much, and the embodiment of the present invention only depicts a small amount of gate driving circuit 222, clock letter for the ease of showing
Gate driving circuit 222, clock can be arranged in number line 224 and public electrode block 211, those skilled in the art according to actual needs
The particular number of signal wire 224 and public electrode block 211, the embodiment of the present invention are not particularly limited.
In the above scheme, by the way that control circuit is arranged in the non-display area of display panel, make control circuit according to
The clock signal of control signal and gate driving circuit that signal control line provides, controls each public electrode block in the display stage
Be electrically connected to each other, mutually disconnected in the touch-control stage, under the premise of guaranteeing display panel normal timesharing driving work, solve due to
The different technical problem of the different delay that will lead to the public voltage signal of integrated circuit proximally and distally of the length of cabling, so that
Eventually lead to be input to each public electrode block public voltage signal it is equal, improve face in show homogeneity, improve show
The display effect of panel.Simultaneously as the clock signal that control circuit uses is the clock signal of common grid driving circuit, because
This wiring very simple, is conducive to the thinning of display panel, and process costs are low.
Optionally, in the specific implementation process, the control signal that signal control line 221 provides can be integrated circuit 225
It is supplied directly to signal control line 221, is also possible to the control signal that integrated circuit 225 is supplied to other circuit modules, and
The control signal of the public other circuit modules (such as gate driving circuit 222) of the signal control line 221, the embodiment of the present invention is not
Do concrete restriction.
Fig. 3 a is referred to, when the control signal of 221 common grid driving circuit 222 of signal control line, signal control line
Each of also it is electrically connected at least one gate driving circuit 222, specifically can be at least one gate driving circuit 222
Gate driving circuit electrical connection；The control signal that signal control line 221 exports is also used in each gate driving of touch-control stage control
Circuit 222 stops working.For example, the control signal of the public gate driving circuit 222 of signal control line 221 is specifically as follows
Goff signal.
Fig. 3 b is referred to, when controlling signal is that integrated circuit 225 is supplied directly to signal control line 221, signal control
Line 221 is also connect with the integrated circuit of display panel 225；The control signal that signal control line 221 provides is specially integrated circuit
225 generate and send to the signal of signal control line 221.
Also need explanation, it includes two clock cables that each pair of clock cable 224 is practical, in Fig. 3 a and Fig. 3 b
For the ease of showing, each pair of clock cable 224 is only characterized with a solid line.
Present embodiment, for signal control line control signal source, provide two kinds of implementations, solve by
In the different technical problem of the different delay that will lead to the public voltage signal of integrated circuit proximally and distally of the length of cabling
At the same time it can also simplifying circuit structure, improve the precision of circuit control, save process costs, improve scheme flexibility and
Applicability.
Optionally, Fig. 4 is referred to, control circuit 223 specifically includes: conversion circuit 223a and switching circuit 223b.
Wherein, one end of integrated circuit 225 of the non-display area 22 far from display panel is arranged in switching circuit 223b；Than
Such as, when the lower section of public electrode block array is arranged in integrated circuit 225, the upper of public electrode block array is arranged in switching circuit 223b
Side.
Wherein, the first kind input terminal of conversion circuit 223a is electrically connected at least a pair of of clock cable 224, conversion circuit
The second class input terminal of 223a is electrically connected with signal control line 221, and the output end of conversion circuit 223a is with switching circuit 223b's
Input terminal electrical connection, the output end of switching circuit 223b are electrically connected with each public electrode block 211；
Wherein, conversion circuit 223a is used for: in the display period, according at least a pair of of clock cable 224 export when
The control signal that clock signal, signal control line 221 export generates first control signal and is sent to switching circuit 223b；In touch-control
Period, the control signal that the clock signal exported according at least a pair of of clock cable 224, signal control line 221 export are raw
At second control signal and it is sent to switching circuit 223b；
Switching circuit 223b is used for: each public electrode block 211 being connected when receiving first control signal, is receiving
Each public electrode block 211 is disconnected when two control signals.
Also need explanation, it includes two clock cables that each pair of clock cable 224 is practical, in order to just in Fig. 4
In showing, each pair of clock cable 224 is only characterized with a solid line.
By present embodiment, clock signal of the conversion circuit based at least a pair of of clock cable, signal control line
Signal is controlled, generate first control signal in the display stage and is sent to switching circuit 223b, control switch circuit 223b conducting
Each public electrode block 211 generates second control signal in the touch-control stage and is sent to switching circuit 223b, control switch circuit
223b disconnects each public electrode block 211, with this can under the premise of guaranteeing display panel normal timesharing driving work, solve due to
The different technical problem of the different delay that will lead to the public voltage signal of integrated circuit proximally and distally of the length of cabling, so that
Eventually lead to be input to each public electrode block public voltage signal it is equal.
Optionally, conversion circuit 223a is specifically included and each clock cable 224 at least a pair of of clock cable 224
One-to-one first kind thin film transistor (TFT), and second class thin film transistor (TFT) corresponding with signal control line 221；Wherein,
A kind of input terminal is specially grid and the first pole of first kind thin film transistor (TFT)；Second pole of first kind thin film transistor (TFT) and conversion
The output end of circuit 223a connects；Second class input terminal is specially the grid of the second class thin film transistor (TFT)；Second class film crystal
First pole of pipe is connect with the low-potential signal line for providing low level signal for gate driving circuit 222, alternatively, with being used for
The high potential signal line connection of high level signal is provided for gate driving circuit 222；Second pole of the second class thin film transistor (TFT) with
The output end of conversion circuit 223a connects.
Such as: Fig. 5 is referred to, conversion circuit 223a specifically includes transistor T1, T2, T3, T4 and T5.Transistor T1,
The input terminal of T2 meets first couple of clock signal CK1 and CKB1 respectively, and wherein CK1 and CKB1 corresponds at least one gate driving circuit
The clock signal of first driving circuit 222a in 222；Transistor T3, T4 input terminal connect respectively second couple of clock signal CK2 and
CKB2, wherein CK2 and CKB2 corresponds to the clock signal of the second driving circuit 222b at least one gate driving circuit 222；It is brilliant
The grid of body pipe T5 connects the corresponding Goff signal of gate driving circuit 222, and the first pole connects for providing for gate driving circuit 222
The low-potential signal line of low level signal VGL.
In the specific implementation process, first couple of clock signal CK1, CKB1 and second pair of clock signal CK2, CKB2 can phases
Together, it can also be different, the embodiment of the present invention is not particularly limited.When any pair of clock signal (such as CK1, CKB1) is multiple
In the presence of in gate driving circuit, this to the corresponding transistor of clock signal (such as T1, T2) can be all gate driving electricity
In road this to clock signal be electrically connected, can also only and part of grid pole driving circuit in this to clock signal be electrically connected,
Inventive embodiments are not particularly limited.
In the specific implementation process, since the Goff signal of each gate driving circuit and VGL signal are all the same, T5
The Goff signal of any one gate driving circuit can be connect, the Goff signal of multiple gate driving circuits can also be connect simultaneously, this
Place is not particularly limited.
It should be noted that in embodiments of the present invention, it can be according to the type of transistor and the signal of its grid, it will
First pole of transistor is as its source electrode, and the second pole is as its drain electrode；Alternatively, conversely, using the first pole of transistor as its leakage
Pole, the second pole do not do specific differentiation specifically as its source electrode herein.
Present embodiment can simplify circuit structure, improve circuit control by transistor design conversion circuit 223a
Precision saves process costs.
Optionally, switching circuit 223b includes and the one-to-one switching transistor of each public electrode block 211；Each switch is brilliant
The grid of body pipe is electrically connected with the output end of conversion circuit 223a.
Wherein, the first pole of each switching transistor is electrically connected to each other, and/or, the first of each switching transistor extremely with public affairs
Common-battery polar curve 226 is electrically connected.Public electrode wire 226 is located at the one of integrated circuit 225 of the non-display area 22 far from display panel
It holds, the signal transmitted in public electrode wire 226 is public voltage signal.For example, Fig. 6 a is referred to, the first of each switching transistor
Pole is electrically connected to each other；For another example, Fig. 6 b is referred to, the first of each switching transistor is extremely electrically connected with public electrode wire 226；Again
Such as, Fig. 6 c is referred to, the first pole of each switching transistor is electrically connected to each other and is electrically connected with public electrode wire 226.
Wherein, the second pole of each switching transistor is electrically connected with each public electrode block 211 one-to-one correspondence.
Present embodiment designs switching circuit 223b by switching transistor, can simplify circuit structure, improves circuit control
The precision of system saves process costs.
Optionally, it in order to reduce the wiring in display panel, will can connect correspondingly with each public electrode block 211
Touching signals line extend to integrated circuit 225 of the non-display area 22 far from display panel one end and switching transistor second
Pole electrical connection.For example, Fig. 6 d is referred to, and when the lower section of public electrode block array is arranged in integrated circuit 225, switching circuit 223b
The top of public electrode block array is set, then integrated circuit 225 can be connected to the touching signals line of each public motor block 221
227 (namely cablings 12 in Fig. 1) extend to the top of public electrode block array and each switch crystalline substance in switching circuit 223b
Second pole of body pipe is electrically connected.
In the specific implementation, the M1 layer of display panel is arranged in gate driving circuit 222, and each public electrode block 211 is arranged
In the M2 layer of display panel, touching signals line 227 can be in the local thread-changing overlapped with gate driving circuit 222 to M2 layers, preferably
In the public electrode block array lower left corner or lower right corner thread-changing.
Present embodiment reduces the wiring in display panel, may further simplify circuit structure, saves process costs.
Optionally, the transistor in switching circuit 223b and conversion circuit 223a is the transistor of identical doping characteristic.It is logical
Crossing present embodiment can simplify circuit structure, improve the precision of circuit control, save process costs.
Optionally, the above-mentioned transistor of the embodiment of the present invention can be N-type TFT, and it is brilliant to be also possible to p-type film
Body pipe, the embodiment of the present invention are not particularly limited.
Next, the situation to transistor for N-type TFT and P-type TFT describes in detail respectively:
1st kind: the transistor in the embodiment of the present invention is N-type TFT, then above-mentioned second class thin film transistor (TFT)
The first pole connect with for providing the low-potential signal line of low level signal VGL for gate driving circuit 222.
In the display stage, each pair of clock signal that at least a pair of of clock cable 224 exports is the two of phase phase difference 180 degree
A square-wave signal, the control signal that signal control line 221 exports are low level signal；Connect at least a pair of of clock cable 224
The first part's transistor in first kind thin film transistor (TFT) and second part transistor connect is with the square-wave signal received
Low and high level transformation alternately opens or closes, and the second class thin film transistor (TFT) is closed, first kind film crystal in the open state
Second pole of pipe exports the output end of high level signal to conversion circuit 223a；Switching circuit 223b is receiving conversion circuit
After the high level signal of 223a output, all switching transistors in switching circuit 223b are opened, so that each public electrode block 211
It is electrically connected to each other；
In the touch-control stage, each pair of clock signal that at least a pair of of clock cable 224 exports is low level signal, signal
The control signal that control line 221 exports is high level signal；The first kind film connecting at least a pair of of clock cable 224 is brilliant
Body pipe is all closed, and the second class thin film transistor (TFT) is opened, and the second pole output low level signal of the second class thin film transistor (TFT) extremely turns
Change the output end of circuit 223a；Switching circuit 223b is after the low level signal for receiving conversion circuit 223a output, switch electricity
All switching transistors in the 223b of road are closed, so that each public electrode block 211 mutually disconnects.
2nd kind: the transistor in the embodiment of the present invention is P-type TFT, then above-mentioned second class thin film transistor (TFT)
The first pole connect with for providing the high potential signal line of high level signal VGH for gate driving circuit 222.
In the display stage, each pair of clock signal that at least a pair of of clock cable 224 exports is the two of phase phase difference 180 degree
A square-wave signal, the control signal that signal control line 221 exports are high level signal；Connect at least a pair of of clock cable 224
First part's first kind thin film transistor (TFT) and second part first kind thin film transistor (TFT) in the first kind thin film transistor (TFT) connect with
Receive square-wave signal low and high level transformation alternately open or close, the second class thin film transistor (TFT) close, in open
Second pole of the first kind thin film transistor (TFT) of state exports the output end of low level signal to conversion circuit 223a；Switching circuit
223b after the low level signal for receiving conversion circuit 223a output, beat by all switching transistors in switching circuit 223b
It opens, so that each public electrode block 211 is electrically connected to each other；
In the touch-control stage, each pair of clock signal that at least a pair of of clock cable 224 exports is high level signal, signal
The control signal that control line 221 exports is low level signal；The first kind film connecting at least a pair of of clock cable 224 is brilliant
Body pipe is all closed, and the second class thin film transistor (TFT) is opened；The second pole output high level signal of second class thin film transistor (TFT) extremely turns
Change the output end of circuit 223a；Switching circuit 223b is after the high level signal for receiving conversion circuit 223a output, switch electricity
All switching transistors in the 223b of road are closed, so that each public electrode block 211 mutually disconnects.
Present embodiment designs control circuit 223 by N-type TFT or P-type TFT, can simplify electricity
Line structure improves the precision of circuit control, saves process costs.
In order to which above-mentioned technical proposal of the embodiment of the present invention is more clearly understood, a possible complete implementation is named
Example is described in detail:
Fig. 7 is referred to, the transistor in display panel shown in Fig. 7 is N-type TFT, and conversion circuit 223a includes
Transistor T1, T2, T3, T4 and T5, in switching circuit 223b the first pole of each switching transistor be electrically connected to each other and with it is public
Electrode wires 226 are electrically connected.Wherein, transistor T1, T2 receives the CK1 and CKB1 in first pair of clock signal respectively, transistor T3,
T4 receives the CK2 and CKB2 in second pair of clock signal respectively, and the grid of transistor T3 receives Goff signal, and the first pole receives
VGL signal.
Fig. 8 is referred to, Fig. 8 is the level diagram of CK1, CKB1, CK2, CKB2, Goff in display panel shown in Fig. 7.It is showing
Period, T1 and T2 in conversion circuit 223a convert alternate conduction or cut-off with the low and high level of the square-wave signal received
(specially high level when be connected, when low level, ends), T3 and T4 are handed over as the low and high level of the square-wave signal received converts
For on or off (specially high level when be connected, when low level, ends), T5 cut-off, the output of conversion circuit 223a output end is high
The SW signal of level, as shown in Figure 9；SW signal of the switching circuit 223b in the high level for receiving conversion circuit 223a output
Afterwards, all switching transistors conducting in switching circuit 223b, so that each public electrode block 211 is electrically connected to each other；
T1, T2, T3 and T4 in the touch-control period, conversion circuit 223a all end, and T5 conducting, T5 exports low electricity
Flat (i.e. VGL), conversion circuit 223a output end export low level SW signal, as shown in Figure 9；Switching circuit 223b is being received
After the low level SW signal of conversion circuit 223a output, all switching transistors in switching circuit 223b are ended, so that respectively
Public electrode block 211 mutually disconnects.
The transistor in display panel shown in 0, Figure 10 is P-type TFT, conversion circuit 223a packet referring to Figure 1
Include transistor T1, T2, T3, T4 and T5, in switching circuit 223b the first pole of each switching transistor be electrically connected to each other and with public affairs
Common-battery polar curve 226 is electrically connected.Wherein, transistor T1, T2 receives the CK1 and CKB1 in first pair of clock signal, transistor respectively
T3, T4 receive the CK2 and CKB2 in second pair of clock signal respectively, and the grid of transistor T3 receives Goff signal, and the first pole connects
Receive VGH signal.
1, Figure 11 is the level diagram of CK1, CKB1, CK2, CKB2, Goff in display panel shown in Figure 10 referring to Figure 1.?
Show the period, the T1 and T2 in conversion circuit 223a with the low and high level of the square-wave signal received convert alternate conduction or
Cut-off (specially low level when be connected, when high level, ends), T3 and T4 become with the low and high level of the square-wave signal received
Change alternate conduction or cut-off (specially low level when be connected, when high level, ends), T5 cut-off, conversion circuit 223a output end is defeated
Low level SW signal out, as shown in figure 12；Switching circuit 223b is in the low level SW for receiving conversion circuit 223a output
After signal, all switching transistors in switching circuit 223b are connected, so that each public electrode block 211 is electrically connected to each other；
T1, T2, T3 and T4 in the touch-control period, conversion circuit 223a all end, T5 conducting, the high electricity of T5 output
Flat (i.e. VGH), conversion circuit 223a output end export the SW signal of high level, as shown in figure 12；Switching circuit 223b is being received
After the SW signal of the high level exported to conversion circuit 223a, all switching transistors in switching circuit 223b are ended, so that
Each public electrode block 211 mutually disconnects.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of display device, including the embodiment of the present invention is above-mentioned
Display panel in any optional embodiment.
Based on the same inventive concept, the embodiment of the present invention also provides a kind of driving method, is applied in the embodiment of the present invention
State the display panel in any optional embodiment, which comprises
Clock signal is loaded to each pair of clock cable 224 at least a pair of of clock cable 224, and to signal control
Line 221 processed load control signal, so that control signal that control circuit 223 is provided according to the signal control line 221 and institute
The clock signal that at least a pair of of clock cable 224 provides is stated, each public electrode block 211 is controlled and is mutually electrically connected in the display stage
It connects, is mutually disconnected in the touch-control stage.
Optionally, it controls each public electrode block 211 to be electrically connected to each other in the display stage, mutually be disconnected in the touch-control stage, had
Body includes:
In the display period, the conversion circuit 223a in the control circuit 223 is according at least a pair of of clock signal
The control signal of clock signal, the output of the signal control line 221 that line 224 exports generates first control signal and is sent to institute
The switching circuit 223b in control circuit 223 is stated, so that the switching circuit 223b is when receiving the first control signal
Each public electrode block 211 is connected；
Conversion circuit 223a in the touch-control period, the control circuit 223 is according at least a pair of of clock signal
The control signal of clock signal, the output of the signal control line 221 that line 224 exports generates second control signal and is sent to institute
The switching circuit 223b in control circuit 223 is stated, so that the switching circuit 223b is when receiving the second control signal
Disconnect each public electrode block 211.
Optionally, clock signal is loaded to each pair of clock cable 224 at least a pair of of clock cable 224, and
Control signal is loaded to signal control line 221, is specifically included:
In the display stage, phase is loaded respectively to each pair of clock cable 224 at least a pair of of clock cable 224
Two square-wave signals of phase difference 180 degree load low level signal to the signal control line 221；In the touch-control stage, to described
Each pair of clock cable 224 at least a pair of of clock cable 224 loads low level signal, to the signal control line 221
Load high level signal；
In the display period, the conversion circuit 223a in the control circuit 223 is according at least a pair of of clock signal
The control signal of clock signal, the output of the signal control line 221 that line 224 exports generates first control signal and is sent to institute
The switching circuit 223b in control circuit 223 is stated, so that the switching circuit 223b is when receiving the first control signal
Each public electrode block 211 is connected, specifically includes:
The first part's transistor and second part crystal in first kind thin film transistor (TFT) in the conversion circuit 223a
Pipe is alternately opened or closed with the low and high level transformation of the square-wave signal received, the second class in the conversion circuit 223a
Thin film transistor (TFT) is closed, and the second pole of first kind thin film transistor (TFT) in the open state exports high level signal to the conversion
The output end of circuit 223a, so that the switching circuit 223b is in the high level signal for receiving the conversion circuit 223a output
Afterwards, all switching transistors in the switching circuit 223b are opened, so that each public electrode block 211 is mutually electrically connected
It connects；
Conversion circuit 223a in the touch-control period, the control circuit 223 is according at least a pair of of clock signal
The control signal of clock signal, the output of the signal control line 221 that line 224 exports generates second control signal and is sent to institute
The switching circuit 223b in control circuit 223 is stated, so that the switching circuit 223b is when receiving the second control signal
Each public electrode block 211 is disconnected, is specifically included:
First kind thin film transistor (TFT) in the conversion circuit 223a is all closed, second in the conversion circuit 223a
Class thin film transistor (TFT) is opened, and the second pole of the second class thin film transistor (TFT) exports low level signal to the conversion circuit 223a
Output end so that the switching circuit 223b after the low level signal for receiving conversion circuit 223a output, is closed
All switching transistors in the switching circuit 223b, so that each public electrode block 211 mutually disconnects.
Optionally, clock signal is loaded to each pair of clock cable 224 at least a pair of of clock cable 224, and
Control signal is loaded to signal control line 221, is specifically included:
In the display stage, phase is loaded respectively to each pair of clock cable 224 at least a pair of of clock cable 224
Two square-wave signals of phase difference 180 degree load high level signal to the signal control line 221；In the touch-control stage, to described
Each pair of clock cable 224 at least a pair of of clock cable 224 loads high level signal, to the signal control line 221
Load low level signal；
In the display period, the conversion circuit 223a in the control circuit 223 is according at least a pair of of clock signal
The control signal of clock signal, the output of the signal control line 221 that line 224 exports generates first control signal and is sent to institute
The switching circuit 223b in control circuit 223 is stated, so that the switching circuit 223b is when receiving the first control signal
Each public electrode block 211 is connected, specifically includes:
The first part's transistor and second part crystal in first kind thin film transistor (TFT) in the conversion circuit 223a
Pipe is alternately opened or closed with the low and high level transformation of the square-wave signal received, the second class in the conversion circuit 223a
Thin film transistor (TFT) is closed, and the second pole of first kind thin film transistor (TFT) in the open state exports low level signal to the conversion
The output end of circuit 223a, so that the switching circuit 223b is in the low level signal for receiving the conversion circuit 223a output
Afterwards, all switching transistors in the switching circuit 223b are opened, so that each public electrode block 211 is mutually electrically connected
It connects；
Conversion circuit 223a in the touch-control period, the control circuit 223 is according at least a pair of of clock signal
The control signal of clock signal, the output of the signal control line 221 that line 224 exports generates second control signal and is sent to institute
The switching circuit 223b in control circuit 223 is stated, so that the switching circuit 223b is when receiving the second control signal
Each public electrode block 211 is disconnected, is specifically included:
First kind thin film transistor (TFT) in the conversion circuit 223a is all closed, second in the conversion circuit 223a
Class thin film transistor (TFT) is opened, and the second pole of the second class thin film transistor (TFT) exports high level signal to the conversion circuit 223a
Output end so that the switching circuit 223b after the high level signal for receiving conversion circuit 223a output, is closed
All switching transistors in the switching circuit 223b, so that each public electrode block 211 mutually disconnects.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (16)
1. a kind of display panel, which is characterized in that be divided into display area and non-display area；The display area includes multiple battle arrays
The public electrode block of setting is arranged, the public electrode block multiplexing is used as touch control electrode；The non-display area includes signal control
Line, at least one gate driving circuit, control circuit and at least a pair of of clock cable；
Each pair of clock cable at least a pair of of clock cable with it is each at least one described gate driving circuit
Gate driving circuit corresponds electrical connection, and at least a pair of of clock cable is described at least for exporting clock signal control
One gate driving circuit is in display stage work；
The input terminal of the control circuit is electrically connected at least a pair of of clock cable, the signal control line, the control
The output end of circuit processed is electrically connected with each public electrode block；The control circuit is used for: being mentioned according to the signal control line
The clock signal that the control signal of confession and at least a pair of of clock cable provide, controls each public electrode block aobvious
Show that the stage is electrically connected to each other, is mutually disconnected in the touch-control stage；
Wherein, if the signal control line provide control signal the display stage be high level, in the touch-control rank
Section is low level, is high level in the touch-control stage if being low level in the display stage.
2. display panel as described in claim 1, which is characterized in that the signal control line also at least one described grid
Driving circuit electrical connection；
The control signal of the signal control line output is also used to each gate driving circuit described in touch-control stage control and stops work
Make.
3. display panel as described in claim 1, which is characterized in that collection of the signal control line also with the display panel
At circuit connection；
The control signal that the signal control line provides is specially that the integrated circuit generates and sends to the signal control line
Signal.
4. display panel as described in claim 1, which is characterized in that the control circuit specifically includes: conversion circuit and opening
Powered-down road；
Wherein, one end of integrated circuit of the non-display area far from the display panel is arranged in the switching circuit；
The first kind input terminal of the conversion circuit is electrically connected at least a pair of of clock cable, and the of the conversion circuit
Two class input terminals are electrically connected with the signal control line, the input terminal electricity of the output end of the conversion circuit and the switching circuit
Connection, the output end of the switching circuit are electrically connected with each public electrode block；
The conversion circuit is used for: in the display period, according to the clock signal of at least a pair of of clock cable output, institute
The control signal for stating signal control line output generates first control signal and is sent to the switching circuit；In the touch-control period,
Second is generated according to the control signal of the clock signal of at least a pair of of clock cable output, signal control line output
Control signal is simultaneously sent to the switching circuit；
The switching circuit is used for: each public electrode block being connected when receiving the first control signal, is receiving
Each public electrode block is disconnected when the second control signal.
5. display panel as claimed in claim 4, which is characterized in that the conversion circuit includes and at least a pair of of clock
Each one-to-one first kind thin film transistor (TFT) of clock cable in signal wire, and corresponding with the signal control line
Two class thin film transistor (TFT)s；
Wherein, the first kind input terminal is specially grid and the first pole of the first kind thin film transistor (TFT)；The first kind
Second pole of thin film transistor (TFT) is connect with the output end of the conversion circuit；
The second class input terminal is specially the grid of the second class thin film transistor (TFT)；The of the second class thin film transistor (TFT)
One pole is connect with the low-potential signal line for providing low level signal for the gate driving circuit, alternatively, with being used for as institute
It states gate driving circuit and the high potential signal line connection of high level signal is provided；Second pole of the second class thin film transistor (TFT) with
The output end of the conversion circuit connects.
6. display panel as claimed in claim 5, which is characterized in that the switching circuit includes and each public electrode block
One-to-one switching transistor；
The grid of each switching transistor is electrically connected with the output end of the conversion circuit；The first of each switching transistor
Pole is electrically connected to each other, and/or, the first of each switching transistor is extremely electrically connected with public electrode wire；Each switch is brilliant
Second pole of body pipe is electrically connected with the corresponding public electrode block.
7. display panel as claimed in claim 6, which is characterized in that the crystal in the switching circuit and the conversion circuit
Pipe is N-type TFT；First pole of the second class thin film transistor (TFT) with for providing for the gate driving circuit
The low-potential signal line of low level signal connects；
In the display stage, each pair of clock signal of at least a pair of of clock cable output is two of phase phase difference 180 degree
The control signal of square-wave signal, the signal control line output is low level signal；Connect at least a pair of of clock cable
The first part's transistor in first kind thin film transistor (TFT) and second part transistor connect is with the square-wave signal received
Low and high level transformation alternately opens or closes, and the second class thin film transistor (TFT) is closed, first kind film in the open state
Second pole of transistor exports the output end of high level signal to the conversion circuit；The switching circuit is receiving described turn
After changing the high level signal of circuit output, all switching transistors in the switching circuit are opened, so that each common electrical
Pole block is electrically connected to each other；
It is low level signal in each pair of clock signal in touch-control stage, at least a pair of of clock cable output, the letter
The control signal of number control line output is high level signal；The first kind film connecting at least a pair of of clock cable is brilliant
Body pipe is all closed, and the second class thin film transistor (TFT) is opened, and the second pole of the second class thin film transistor (TFT) exports low level
Signal to the conversion circuit output end；The switching circuit is in the low level signal for receiving the conversion circuit output
Afterwards, all switching transistors in the switching circuit are closed, so that each public electrode block mutually disconnects.
8. display panel as claimed in claim 6, which is characterized in that the crystal in the switching circuit and the conversion circuit
Pipe is P-type TFT；First pole of the second class thin film transistor (TFT) with for providing for the gate driving circuit
The high potential signal line of high level signal connects；
In the display stage, each pair of clock signal of at least a pair of of clock cable output is two of phase phase difference 180 degree
The control signal of square-wave signal, the signal control line output is high level signal；Connect at least a pair of of clock cable
First part's first kind thin film transistor (TFT) and second part first kind thin film transistor (TFT) in the first kind thin film transistor (TFT) connect with
The low and high level transformation of square-wave signal that receives alternately open or close, the second class thin film transistor (TFT) is closed, and is in
Second pole of the first kind thin film transistor (TFT) of opening state exports the output end of low level signal to the conversion circuit；It is described to open
After the low level signal for receiving the conversion circuit output, all switching transistors in the switching circuit are beaten on powered-down road
It opens, so that each public electrode block is electrically connected to each other；
It is high level signal in each pair of clock signal in touch-control stage, at least a pair of of clock cable output, the letter
The control signal of number control line output is low level signal；The first kind film connecting at least a pair of of clock cable is brilliant
Body pipe is all closed, and the second class thin film transistor (TFT) is opened；Second pole of the second class thin film transistor (TFT) exports high level
Signal to the conversion circuit output end；The switching circuit is in the high level signal for receiving the conversion circuit output
Afterwards, all switching transistors in the switching circuit are closed, so that each public electrode block mutually disconnects.
9. display panel as claimed in claim 6, which is characterized in that the display area includes and each public electrode block
The touching signals line connected correspondingly, the touching signals line extend to collection of the non-display area far from the display panel
It is electrically connected at one end of circuit with the second pole of the switching transistor.
10. display panel as claimed in claim 6, which is characterized in that the public electrode wire is located at the non-display area
One end of integrated circuit far from the display panel.
11. such as the described in any item display panels of claim 5-10, which is characterized in that the switching circuit and conversion electricity
Transistor in road is the transistor of identical doping characteristic.
12. a kind of display device, which is characterized in that including such as described in any item display panels of claim 1-11.
13. a kind of driving method of such as described in any item display panels of claim 1-11, which is characterized in that the method packet
It includes:
Clock signal is loaded to each pair of clock cable at least a pair of of clock cable, and signal control line is loaded and is controlled
Signal processed, so that control signal and at least a pair of of clock cable that control circuit is provided according to the signal control line
The clock signal of offer controls each public electrode block and is electrically connected to each other in the display stage, mutually disconnects in the touch-control stage.
14. method as claimed in claim 13, which is characterized in that control each public electrode block and be mutually electrically connected in the display stage
It connects, mutually disconnects, specifically include in the touch-control stage:
In the display period, the clock of conversion circuit at least a pair of of clock cable output according in the control circuit
The switch that the control signal that signal, the signal control line export generates first control signal and is sent in the control circuit
Circuit, so that each public electrode block is connected when receiving the first control signal for the switching circuit；
The clock that conversion circuit in the touch-control period, the control circuit is exported according at least a pair of of clock cable
The switch that the control signal that signal, the signal control line export generates second control signal and is sent in the control circuit
Circuit, so that the switching circuit disconnects each public electrode block when receiving the second control signal.
15. method as claimed in claim 14, which is characterized in that each pair of clock signal at least a pair of of clock cable
Line loads clock signal, and loads control signal to signal control line, specifically includes:
In the display stage, phase phase difference 180 is loaded respectively to each pair of clock cable at least a pair of of clock cable
Two square-wave signals of degree load low level signal to the signal control line；In the touch-control stage, at least a pair of of clock
Each pair of clock cable in signal wire loads low level signal, loads high level signal to the signal control line；
In the display period, the clock of conversion circuit at least a pair of of clock cable output according in the control circuit
The switch that the control signal that signal, the signal control line export generates first control signal and is sent in the control circuit
Circuit specifically includes so that each public electrode block is connected when receiving the first control signal for the switching circuit:
First part's transistor in first kind thin film transistor (TFT) and second part transistor in the conversion circuit are with connecing
The low and high level transformation of the square-wave signal received alternately opens or closes, and the second class thin film transistor (TFT) in the conversion circuit closes
It closes, the second pole of first kind thin film transistor (TFT) in the open state exports the output of high level signal to the conversion circuit
End, so that the switching circuit is opened in the switching circuit after the high level signal for receiving the conversion circuit output
All switching transistors so that each public electrode block is electrically connected to each other；
The clock that conversion circuit in the touch-control period, the control circuit is exported according at least a pair of of clock cable
The switch that the control signal that signal, the signal control line export generates second control signal and is sent in the control circuit
Circuit specifically includes so that the switching circuit disconnects each public electrode block when receiving the second control signal:
First kind thin film transistor (TFT) in the conversion circuit is all closed, the second class thin film transistor (TFT) in the conversion circuit
It opens, the second pole of the second class thin film transistor (TFT) exports the output end of low level signal to the conversion circuit, so that institute
Switching circuit is stated after the low level signal for receiving the conversion circuit output, closes all switches in the switching circuit
Transistor, so that each public electrode block mutually disconnects.
16. method as claimed in claim 14, which is characterized in that each pair of clock signal at least a pair of of clock cable
Line loads clock signal, and loads control signal to signal control line, specifically includes:
In the display stage, phase phase difference 180 is loaded respectively to each pair of clock cable at least a pair of of clock cable
Two square-wave signals of degree load high level signal to the signal control line；In the touch-control stage, at least a pair of of clock
Each pair of clock cable in signal wire loads high level signal, loads low level signal to the signal control line；
In the display period, the clock of conversion circuit at least a pair of of clock cable output according in the control circuit
The switch that the control signal that signal, the signal control line export generates first control signal and is sent in the control circuit
Circuit specifically includes so that each public electrode block is connected when receiving the first control signal for the switching circuit:
First part's transistor in first kind thin film transistor (TFT) and second part transistor in the conversion circuit are with connecing
The low and high level transformation of the square-wave signal received alternately opens or closes, and the second class thin film transistor (TFT) in the conversion circuit closes
It closes, the second pole of first kind thin film transistor (TFT) in the open state exports the output of low level signal to the conversion circuit
End, so that the switching circuit is opened in the switching circuit after the low level signal for receiving the conversion circuit output
All switching transistors so that each public electrode block is electrically connected to each other；
The clock that conversion circuit in the touch-control period, the control circuit is exported according at least a pair of of clock cable
The switch that the control signal that signal, the signal control line export generates second control signal and is sent in the control circuit
Circuit specifically includes so that the switching circuit disconnects each public electrode block when receiving the second control signal:
First kind thin film transistor (TFT) in the conversion circuit is all closed, the second class thin film transistor (TFT) in the conversion circuit
It opens, the second pole of the second class thin film transistor (TFT) exports the output end of high level signal to the conversion circuit, so that institute
Switching circuit is stated after the high level signal for receiving the conversion circuit output, closes all switches in the switching circuit
Transistor, so that each public electrode block mutually disconnects.
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| CN201811572471.4A CN109584772B (en) | 2018-12-21 | 2018-12-21 | Display panel, device and driving method |
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| CN201811572471.4A CN109584772B (en) | 2018-12-21 | 2018-12-21 | Display panel, device and driving method |
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| CN114141198A (en) * | 2021-12-07 | 2022-03-04 | 合肥京东方卓印科技有限公司 | Scanning driving circuit, maintenance method thereof and display device |
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