CN108831367A - Scan drive cell, circuit and display panel - Google Patents
Scan drive cell, circuit and display panel Download PDFInfo
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- CN108831367A CN108831367A CN201810701642.2A CN201810701642A CN108831367A CN 108831367 A CN108831367 A CN 108831367A CN 201810701642 A CN201810701642 A CN 201810701642A CN 108831367 A CN108831367 A CN 108831367A
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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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The invention discloses a kind of scan drive cell, circuit and display panels.The scan drive cell includes：Scanning signal input terminal, reset signal control terminal, the first electric potential signal input terminal, the second electric potential signal input terminal, scanning signal output end, output signal control terminal, scan control module, reseting module, output module, pull-up module, pull-down module and compensating module, wherein：Output module includes first node and second node；The current potential of second node is controlled by scan control module and pull-down module, the current potential of first node by pull-up module and second node control of Electric potentials, pull-down module includes drop-down branch, the first end of drop-down branch is connected with second node, and the second end for pulling down branch is connected with the second end of compensating module.It leaks electricity during touch control detection by means of the invention it is possible to reduce scan drive cell, and display panel is made the probability of concealed wire occur.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of scan drive cell, circuit and display panel.
Background technique
In recent years, with the gradually development of touch technology, the display of the devices such as smart phone, Intelligent flat, wearable device
Panel generallys use the touch-control display panel with touch function.When realizing touch-control display panel, touch-control module can be plug-in
Except display panel, also it can integrate within display panel, it is more and more in order to keep touch-control display panel more lightening
The choice of technology touch-control module is integrated in display panel.
Although touch-control module to be integrated in display panel to the integral thickness that touch-control display panel can be thinned, simultaneously
New problem can be brought, is easy to influence the normal display effect of display panel.Therefore, touch control detection process how is reduced or eliminated
It is this field technical problem urgently to be solved to the adverse effect that display process generates.
Summary of the invention
In view of this, reducing scan drive cell the present invention provides a kind of scan drive cell, circuit and display panel
It leaks electricity during touch control detection, and display panel is made the probability of concealed wire occur.
To achieve the goals above, the present invention provides a kind of scan drive cells.
The scan drive cell includes：Scanning signal input terminal, reset signal control terminal, the first electric potential signal input terminal,
Second electric potential signal input terminal, scanning signal output end, output signal control terminal, scan control module, reseting module, output mould
Block, pull-up module, pull-down module and compensating module, wherein：Output module includes the first output branch and second exports branch, the
The control terminal of one output branch is electrically connected first node, and the first end of the first output branch is electrically connected the input of the first electric potential signal
End, the second end of the first output branch are electrically connected scanning signal output end, and the control terminal of the second output branch is electrically connected the second section
Point, the first end of the second output branch are electrically connected output signal control terminal, the second end electrical connection scanning letter of the second output branch
Number output end；The input terminal of scan control module is electrically connected with scanning signal input terminal, the output end of scan control module and
The electrical connection of two nodes；The input terminal of reseting module is electrically connected with reset signal control terminal, the output end of reseting module and upper drawing-die
Block electrical connection；Pull-down module is electrically connected with the first electric potential signal input terminal, first node and second node；Pull-up module with
Reseting module, the second electric potential signal input terminal and first node are electrically connected；Control terminal and the second node electricity of compensating module
Connection, the first end of compensating module are electrically connected with the second electric potential signal input terminal；Wherein, the current potential of second node is by scan control
Module and pull-down module control, by the control of Electric potentials of pull-up module and second node, pull-down module includes for the current potential of first node
Branch is pulled down, the first end for pulling down branch is connected with second node, pulls down the second end of branch and the second end of compensating module
It is connected.
To achieve the goals above, the present invention also provides a kind of scan drive circuits.
The scan drive circuit includes multiple any one scan drive cell provided by the invention, each turntable driving list
Member cascade, wherein the scanning signal input terminal of the 1st grade of scan drive cell is for receiving starting shift signal, from the 2nd grade to most
The scanning signal input terminal of rear stage scan drive cell is separately connected the scanning signal output end of upper level scan drive cell.
To achieve the goals above, the present invention also provides a kind of display panels.
The display panel includes viewing area and the non-display area for surrounding viewing area；Viewing area includes several display pixels, is shown
Show that pixel includes pixel circuit, pixel circuit includes scanning signal receiving end and data signal recipients；Non-display area includes number
According to driving circuit and any one scan drive circuit provided by the invention；Display panel further includes scan line and data line,
In, the scanning drive signal of the scanning signal output end output of scan drive cell is transmitted to through scan line in scan drive circuit
The data drive signal of scanning signal receiving end, data drive circuit output is transmitted to data signal recipients through data line.
Compared with prior art, scan drive cell provided by the invention, circuit and display panel at least realize as follows
Beneficial effect：
Scan drive cell is provided with compensating module, carries out to the leakage current path on the second node in scan drive cell
It intercepts, meanwhile, using the current potential of second node itself as the control end signal of compensating module, do not need separately to connect switch, so that sweeping
The structure for retouching driving unit is simple, reduces the increase due to compensating module and the component of excessive increase scan drive cell,
For application has the display panel of the scan drive cell, to the leakage current path on the second node in scan drive cell
It is intercepted, abnormal signal in scan line caused by capable of reducing due to electric leakage, meanwhile, the current potential of second node itself is made
It for the control end signal of compensating module, does not need separately to connect switch, the side of the display panel of scan drive cell occupancy can be reduced
Frame area area is conducive to display panel and realizes narrow frame.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is a kind of scan drive cell schematic diagram provided in an embodiment of the present invention；
Fig. 2 is the timing diagram of scan drive cell shown in Fig. 1,
Fig. 3 is another scan drive cell schematic diagram provided in an embodiment of the present invention；
Fig. 4 is another scan drive cell schematic diagram provided in an embodiment of the present invention；
Fig. 5 is a kind of circuit structure diagram of scan drive cell provided in an embodiment of the present invention；
Fig. 6 is the circuit structure diagram of another scan drive cell provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram of scan drive circuit provided in an embodiment of the present invention；
Fig. 8 is the schematic diagram of display panel provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should be noted that：Unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
For being integrated with the touch-control display panel of touch-control module in display panel, applicant carried out following researchs：
During showing scanning, the certain line number of the every scanning of scan drive circuit needs to suspend touch-control display panel
Display scanning starts progress touch-control scanning and is further continued for carrying out display scanning after the completion of touch-control scanning.In the process of touch-control scanning
In, scanning signal pause exports, and guarantees that scanning signal output end can normally export effective scanning signal in scan drive circuit
Node need to be maintained at the current potential of effective current potential, can normally have been exported with guaranteeing to restore the first scan line after display scanning
Scanning signal is imitated, for example, need the node to be maintained at high potential when the effective scanning signal normally exported is high potential signal,
When the effective scanning signal normally exported is low-potential signal, the node is needed to be maintained at low potential.But when the one of certain branch
End connects this node, the other end and this node current potential to be kept there are when potential difference, and during touch-control scanning, this is saved
The current potential of point can carry out electric charge transfer by this branch, and then the phenomenon that " electric leakage " occur, cannot keep this node effective
The current potential of current potential, in turn, after restoring display scanning when touch-control is scanned and completed, first scan line can not normally export effective scanning
Signal, and show that the display pixel of the turntable driving can not normally, occur the phenomenon that " concealed wire ", influencing display effect.In addition,
For other needs during pause display scanning, keeps the node to be in the situation of effective current potential, exist and similarly ask
Topic.
Based on this, the present invention proposes a kind of new scan drive cell, circuit and display panel, above-mentioned to be reduced or avoided
" electric leakage " problem reduces display pixel since touch control detection influences and the probability of concealed wire occurs.About scanning proposed by the present invention
The specific embodiment of driving unit, circuit and display panel, will be described in more detail below.
Fig. 1 is a kind of scan drive cell schematic diagram provided in an embodiment of the present invention, in one embodiment, such as Fig. 1 institute
Show, scan drive cell includes：Scanning signal input terminal IN, reset signal control terminal RST, the first electric potential signal input terminal VGL,
Second electric potential signal input terminal VGH, scanning signal output end Gout, output signal control terminal OUT are received outer by above-mentioned port
Portion controls signal and the scanning signal output by generation.
Specifically, the scanning signal input terminal IN of level-one scan drive cell is for receiving displacement initial signal or phase grade
The signal of the scanning signal output end Gout of the upper level scan drive cell of connection, scanning signal output end Gout output scanning letter
Number, in display panel, the scan line of scanning signal output end Gout and display panel is connected, reset signal control terminal RST and
Output signal control terminal OUT can receive clock pulse signal, the first electric potential signal input terminal VGL and the second electric potential signal input terminal
VGH can receive stable potential signal, wherein when scanning signal is high potential pulse signal, the first electric potential signal input terminal VGL
Low-potential signal is received, the second electric potential signal input terminal VGH receives high potential signal；When scanning signal is low level signal, the
One electric potential signal input terminal VGL receives high potential signal, and the second electric potential signal input terminal VGH receives low potential pulse signal.
With continued reference to FIG. 1, scan drive cell further includes：Scan control module 11, reseting module 12, output module,
Pull-up module 14, pull-down module 15 and compensating module 16.Specifically, between each module and between each module and above-mentioned each port
Connection relationship be described as follows.Before describing connection relationship, it should be noted that in the present invention, module (or one
Branch or a component) control terminal it is received be control signal, the control signal is for controlling a module (or branch
Or a component) first end and second end between on or off.
Output module includes the first output branch 131 and the second output branch 132.The control terminal of first output branch 131
It is electrically connected first node N1, first end the first electric potential signal input terminal of electrical connection VGL of the first output branch 131, the first output
The second end of branch 131 is electrically connected scanning signal output end Gout, passes through the current potential of first node N1, control the first output branch
The conducting and shutdown of 131 first end and second end, when the first end and second end conducting of the first output branch 131, scanning
Signal output end Gout exports the signal that the first electric potential signal input terminal VGL is received.The control terminal electricity of second output branch 132
Second node N2 is connected, the first end of the second output branch 132 is electrically connected output signal control terminal OUT, the second output branch 132
Second end be electrically connected scanning signal output end Gout, by the current potential of second node N2, the of control the second output branch 132
The conducting and shutdown of one end and second end, when the first end and second end conducting of the second output branch 132, scanning signal output
The signal that end Gout output signal output control terminal OUT is received.To sum up, first node N1 and second is controlled by other modules
The control to scanning signal output end Gout output signal can be realized in the current potential of node N2.
The input terminal of scan control module 11 is electrically connected with scanning signal input terminal IN, the output end of scan control module 11
Sout is electrically connected with second node N2, and the input terminal of reseting module 12 is electrically connected with reset signal control terminal RST, reseting module 12
Output end be electrically connected with pull-up module 14, pull-down module 15 and the first electric potential signal input terminal VGL, first node N1 and second
Node N2 is electrically connected, and pull-up module 14 and reseting module 12, the second electric potential signal input terminal VGH and first node N1 are distinguished
Electrical connection, wherein the current potential of second node N2 is controlled by scan control module 11 and pull-down module 15, the current potential of first node N1
By the control of Electric potentials of pull-up module 14 and second node N2.
Using scanning signal as high potential pulse signal, the first electric potential signal input terminal VGL receives low-potential signal, the second electricity
Position signal input part VGH receives high potential signal for, and Fig. 2 is the timing diagram of scan drive cell shown in Fig. 1, which drives
The work of moving cell can divide four-stage：
First stage is pre-charging stage t1, will when scanning signal input terminal IN receives high potential pulse signal
Second node N2 is set to high potential, at this time the first end and second end conducting of the second output branch 132, by output signal control terminal
The low-potential signal that OUT is received reaches scanning signal output end Gout, and scanning signal output end Gout exports low potential；
Second stage is holding stage t2, and second node N2 remains high potential, and OUT is after continued access for output signal control terminal
Low-potential signal is received, scanning signal output end Gout still exports low potential；
Three phases are output stage t3, and second node N2 still maintains as high potential, and output signal control terminal OUT connects
High potential pulse signal is received, scanning signal output end Gout exports the high potential pulse signal namely scanning signal；
Four-stage is reseting stage t4, and reset signal control terminal RST receives high potential pulse signal, by the second section
Point N2 is reset to low potential, and first node N1 is reset to high potential, at this time the first end and second end of the first output branch 131
Conducting, reaches scanning signal output end Gout, scanning signal for the first electric potential signal input terminal VGL low-potential signal received
Output end Gout persistently exports low potential.
In three phases namely output stage t3, when second node N2 cannot continue to keep high potential signal, Huo Zhe
When two node N2 current potentials decline, the on state of the first end and second end of the second output branch 132 is influenced whether, to influence
Scanning signal output end Gout normally exports scanning signal.In this embodiment, the control of the compensating module 16 of scan drive cell
End processed is electrically connected with second node N2, and the first end of compensating module 16 is electrically connected with the second electric potential signal input terminal VGH, lower drawing-die
Block 15 includes drop-down branch 151, and the first end of drop-down branch 151 is connected with second node N2, pulls down the second end of branch 151
It is connected with the second end H of compensating module 16, when second node N2 is high potential, so that the first end of compensating module 16 and second
H conducting is held, so that the second end H of compensating module 16 is continuously high potential, and pulls down the first end and second node N2 of branch 151
It is connected, the second end of drop-down branch 151 is connected with the second end H of compensating module 16, so that the both ends of drop-down branch 151 do not have
There is potential difference, is shifted so as to avoid the charge of second node N2 through drop-down branch 151, electric leakage occurs and reduces second node N2
Current potential.
Scan drive cell is provided using the embodiment, compensating module is provided with, to the second section in scan drive cell
Leakage current path on point is intercepted, meanwhile, using the current potential of second node itself as the control end signal of compensating module, it is not required to
Switch is separately connect, so that the structure of scan drive cell is simple, reduces the increase due to compensating module and excessive increase scanning
The component of driving unit, for application has the display panel of the scan drive cell, to the in scan drive cell
Leakage current path on two nodes is intercepted, abnormal signal in scan line caused by capable of reducing due to electric leakage, meanwhile, by the
Control end signal of the current potential of two nodes as compensating module itself, does not need separately to connect switch, can reduce scan drive cell
The rim area area of the display panel of occupancy is conducive to display panel and realizes narrow frame.
Optionally, in one embodiment, with continued reference to FIG. 1, drop-down branch 151 include first switching element, first
The first end of switch element is connected with second node N2, the second end of first switching element and the second end H of compensating module 16
It is connected.When second node N2 is high potential, so that the first end and second end H of compensating module 16 is connected, thus compensating module
16 second end H is continuously high potential, and the first end of first switching element is connected with second node N2, first switching element
Second end be connected with the second end H of compensating module 16 so that the both ends of first switching element do not have potential difference, to avoid
The charge of second node N2 is shifted through first switching element, and electric leakage occurs and reduces the current potential of second node N2.This first is opened
Second node N2 can be can be avoided through first switch member for a transistor in pull-down module 15, compensating module 16 by closing element
Part and leak electricity.
Optionally, in one embodiment, with continued reference to FIG. 1, scan control module 11 includes second switch element
111, the first end of the second switch element 111 is connected with second node N2, the second end and compensation of second switch element 111
The second end H of module 16 is connected.When second node N2 is high potential, so that the first end and second end H of compensating module 16 is led
It is logical, so that the second end H of compensating module 16 is continuously high potential, and the first end of second switch element 111 and second node N2
It is connected, the second end of second switch element 111 is connected with the second end H of compensating module 16, so that second switch element 111
Both ends there is no potential difference, so as to avoid second node N2 charge through second switch element 111 shift, occur electric leakage and drop
The current potential of low second node N2.The second switch element 111 can be a transistor in scan control module 11, compensate mould
Block 16 can be avoided second node N2 and leak electricity through second switch element 111.
Optionally, in one embodiment, Fig. 3 is another scan drive cell principle provided in an embodiment of the present invention
Figure, as shown in figure 3, scan drive cell further includes reset signal control terminal SET and resetting module, wherein reset signal control
SET is held to receive clock pulse signal, resetting module includes that the first resetting branch 171, second resets branch 172 and third resetting electricity
Road 173, each connection relationship for resetting branch are described as follows：
The control terminal of first resetting branch 171 is electrically connected with reset signal control terminal SET, and first resets the of branch 171
One end is electrically connected with the output end Sout of scan control module 11, the second end and second node N2 electricity of the first resetting branch 171
Connection；
The control terminal of second resetting branch 17 is electrically connected with the output end of reseting module 12, and second resets the of branch 172
One end is electrically connected with the output end of scan control module 11, and the second end of the second resetting branch 172 is electrically connected with second node N2；
The control terminal of third resetting branch 173 is electrically connected with the output end Sout of scan control module 11, third resetting branch
The first end on road 173 is electrically connected with the first electric potential signal input terminal VGL, and third resets the second end and first node of branch 173
N1 electrical connection.
The above-mentioned first resetting branch 171 of scan drive cell setting and the second resetting branch 172, can make second node
N2 only receives the output end of scan control module 11 under the control of reset signal control terminal SET and reset signal control terminal RST
The signal that Sout is provided, meanwhile, branch 173 is reset by the way that above-mentioned third is arranged, can to provide signal to second node N2
Before, it avoids pull-down module 15 that the signal of first electric potential signal input terminal VGL is transmitted to second node N2, leads to second node
N2 receive other input terminals provide signal when by the signal interference on the first electric potential signal input terminal VGL, to improve
The stability of scan drive circuit.
Further, the first resetting branch 171 includes third switch element 1711, the first end of third switch element 1711
It is connected to second node N2, the second end of third switch element 1711 is connected to the second end H of compensating module 16.Second node N2
When for high potential, so that the first end and second end H of compensating module 16 is connected, so that the second end H of compensating module 16 is continuously
High potential, and the first end of third switch element 1711 is connected with second node N2, the second end of third switch element 1711
It is connected with the second end H of compensating module 16, so that the both ends of third switch element 1711 do not have potential difference, so as to avoid
The charge of two node N2 is shifted through third switch element 1711, and the current potential for leaking electricity and reducing second node N2 occurs.The third is opened
Second node N2 warp can be can be avoided for a transistor in the first resetting branch 171, compensating module 16 by closing element 1711
Third switch element 1711 and leak electricity.
Second resetting branch 172 includes the 4th switch element 1721, and the first end of the 4th switch element 1721 is connected to the
Two node N2, the second end of the 4th switch element 1721 are connected to the second end H of compensating module 16.Second node N2 is high potential
When, so that the first end and second end H of compensating module 16 is connected, so that the second end H of compensating module 16 is continuously high potential, and
The first end of 4th switch element 1721 is connected with second node N2, the second end and compensating module of the 4th switch element 1721
16 second end H is connected, so that the both ends of the 4th switch element 1721 do not have potential difference, so as to avoid second node N2's
Charge is shifted through the 4th switch element 1721, and the current potential for leaking electricity and reducing second node N2 occurs.4th switch element 1721
Second node N2 can be can be avoided for a transistor in the second resetting branch 172, compensating module 16 through the 4th switch member
Part 1721 and leak electricity.
On the one hand the scan drive cell provided using the embodiment is able to ascend scan drive cell by resetting module
Stability, on the other hand in turn avoid second node through resetting module in switch element leak electricity.
Optionally, in one embodiment, Fig. 4 is another scan drive cell principle provided in an embodiment of the present invention
Figure, please refers to Fig. 3 or Fig. 4, scan drive cell further includes power down protection signal control terminal GAS and power down protection module, wherein
Power down protection module includes that the first protection branch 181, second protects branch 182 and third to protect circuit 183, wherein each protection
The connection relationship of branch is described as follows：
First protection branch 181, second protects the control terminal of branch 182 and third protection circuit 183 and power down protection
Signal control terminal GAS electrical connection；
The first end of first protection branch 181 is electrically connected with the first electric potential signal input terminal VGL, the first protection branch 181
Second end be electrically connected with first node N1；
The first end of second protection branch 182 is electrically connected with the first electric potential signal input terminal VGL, the second protection branch 182
Second end be electrically connected with second node N2；
The first end of third protection branch 183 is electrically connected with the second electric potential signal input terminal VGH, and third protects branch 183
Second end be electrically connected with scanning signal output end Gout.
The above-mentioned first protection branch 181, second of scan drive cell setting protects branch 182 and third to protect circuit 183
Afterwards, when each scan drive cell on display panel completes scanning signal transmission, the first protection protection branch of branch 181, second
Road 182 and third protection circuit 183 are under the control for controlling signal that power down protection signal control terminal GAS is provided, and respective the
One end is both turned on second end, so that the first electric potential signal input terminal VGL is provided to first node by the first protection branch 181
First electric potential signal input terminal VGL is provided to second node N2 by N1, the second protection branch 181, and third protects branch 183 by the
Two electric potential signal input terminal VGH are provided to scanning signal output end Gout, to eliminate remaining charge in each scan line, to mention
The high stability that picture is shown next time.
Further, the second protection branch 182 includes the 5th switch element 1821, the first end of the 5th switch element 1821
It is connected to second node N2, the second end of the 5th switch element 1821 is connected to the second end H of compensating module 16.Second node N2
When for high potential, so that the first end and second end H of compensating module 16 is connected, so that the second end H of compensating module 16 is continuously
High potential, and the first end of the 5th switch element 1821 is connected with second node N2, the second end of the 5th switch element 1821
It is connected with the second end H of compensating module 16, so that the both ends of the 5th switch element 1821 do not have potential difference, so as to avoid
The charge of two node N2 is shifted through the 5th switch element 1821, and the current potential for leaking electricity and reducing second node N2 occurs.5th opens
Second node N2 warp can be can be avoided for a transistor in the second protection branch 182, compensating module 16 by closing element 1821
5th switch element 1821 and leak electricity.
Optionally, in one embodiment, please continue to refer to Fig. 3 or Fig. 4, scan drive cell further includes drop-down protection mould
Block 19, wherein the control terminal of drop-down protective module 19 is electrically connected with the second electric potential signal input terminal VGH, pulls down protective module 19
First end be electrically connected with the control terminal of the second output branch 132, second end and the second node N2 for pulling down protective module 19 are electric
Connection.
In scan phase, the signal amplitude with higher that usual scanning signal control terminal OUT is provided, value considerably beyond
The amplitude of first level signal input terminal VGL.The amplitude acts between the both ends of pull-down module 15 and forms higher pressure difference, should
Pressure difference causes the switch element in pull-down module 15 to damage considerably beyond the tolerance range of pull-down module 15.The present embodiment
The scan drive cell of offer pulls down protective module 19 by increasing, when the letter of scanning signal control terminal OUT input higher magnitude
Number when, since the signal is higher than the amplitude of second electrical level signal input part VGH, so that the first end and the of drop-down protective module 19
Two ends are not turned on, to provide protection for pull-down module 15.
Fig. 5 is a kind of circuit structure diagram of scan drive cell provided in an embodiment of the present invention, and Fig. 6 is the embodiment of the present invention
The circuit structure diagram of another scan drive cell of offer optionally in one embodiment, please refers to Fig. 5 or Fig. 6, mends
Repaying module 16 includes the first transistor T1, wherein：The grid of the first transistor T1 is the control terminal of compensating module 16, with the second section
Point N2 is connected；The first end of the extremely compensating module 16 of the first of the first transistor T1, with the second electric potential signal input terminal VGH phase
Connection, the second end H of the extremely compensating module 16 of the second of the first transistor T1.
Optionally, in one embodiment, referring to FIG. 5, scanning signal input terminal INF/INB includes just sweeping scanning signal
Input terminal INF sweeps scanning signal input terminal INB with counter, and reset signal control terminal RSTF/RSTB includes just sweeping reset signal control
End RSTF sweeps reset signal control terminal RSTB with counter, and scan drive cell further includes just sweeping scanning signal control terminal U2D to sweep with counter
Scanning signal control terminal D2U.
Scan drive cell include the first transistor M1, second transistor M2, third transistor M3, the 4th transistor M4 and
5th transistor M5, the 11st transistor M11, the tenth two-transistor M12, the 13rd transistor M13, the 14th transistor M14,
15th transistor M15, the 16th transistor M16, the 17th transistor M17, the 18th transistor M18, the 19th transistor
M19, the 20th transistor M20, the 21st transistor M21, the 20th two-transistor M22, the 23rd transistor M23.
As described above, compensating module 16 includes the first transistor T1, and for other transistors, scan control module 11 is wrapped
Include second transistor M2, third transistor M3, the 4th transistor M4 and the 5th transistor M5；Reseting module 12 includes the 19th brilliant
Body pipe M19 and the 20th transistor M20；Output module 13 includes first capacitor C1 and the 21st transistor M21, the second capacitor
C2 and the 20th two-transistor M22；Pull-up module 14 includes the 23rd transistor M23；Pull-down module 15 includes the 16th brilliant
Body pipe M16, the 17th transistor M17 and the 18th transistor M18；Protective module 18 includes the 11st transistor M11, the 12nd
Transistor M12, the 13rd transistor M13 and the 14th transistor M14；Pulling down protective module 19 includes the 15th transistor M15.
The connection relationship of each transistor is described as follows：
The grid of second transistor M2 and third transistor M3 with just sweep scanning signal input terminal INF and be connected, second
The first pole of transistor M2 is connected with the second pole of third transistor M3, and the first pole of second transistor M2 and third crystal
The second of pipe M3 is extremely connected with the second end H of compensating module 16, the second pole and the second node N2 phase of second transistor M2
Connection, the first pole of third transistor M3 is connected with scanning signal control terminal U2D is just swept.
The grid of 4th transistor M4 and the 5th transistor M5 is connected with the anti-scanning signal input terminal INB that sweeps, and the 4th
The first pole of transistor M4 is connected with the second pole of the 5th transistor M5, and the first pole of the 4th transistor M4 and the 5th crystal
The second of pipe M5 is extremely connected with the second end H of compensating module 16, the second pole and the second node N2 phase of the 4th transistor M4
Connection, the first pole of the 5th transistor M5 is connected with the anti-scanning signal control terminal D2U that sweeps, wherein second transistor M2 and the
Four transistor M4 are second switch element.
The grid of 11st transistor M11 is connected with power down protection signal control terminal GAS, the 11st transistor M11's
First pole is connected with the first electric potential signal input terminal VGL, and the second pole of the 11st transistor M11 is connected with first node N1
It connects；The grid of tenth two-transistor M12 and the 13rd transistor M13 is connected with power down protection signal control terminal GAS, and the tenth
The first pole of two-transistor M12 is connected with the second pole of the 13rd transistor M13, and the first pole of the tenth two-transistor M12
Extremely it is connected with the second end H of compensating module 16 with the second of the 13rd transistor M13, the second of the 13rd transistor M13
Pole is connected with second node N2, and the first pole of the tenth two-transistor M12 is connected with the first electric potential signal input terminal VGL；The
The grid of 14 transistor M14 is connected with power down protection signal control terminal GAS, the first pole of the 14th transistor M14 and the
Two electric potential signal input terminal VGH are connected, and the second pole of the 14th transistor M14 is connected with scanning signal output end Gout,
Wherein, the 13rd transistor M13 is the 5th switch element.
The grid of 15th transistor M15 is connected with the second electric potential signal input terminal VGH, the 15th transistor M15's
First pole is connected with the control terminal of the 20th two-transistor M22, the second pole and the second node N2 phase of the 15th transistor M15
Connection.
The grid of 16th transistor M16 and the 17th transistor M17 is connected with first node N1, the 16th crystal
The first pole of pipe M16 is connected with the second pole of the 17th transistor M17, and the first pole and the tenth of the 16th transistor M16
The second of seven transistor M17 is extremely connected with the second end H of compensating module 16, the second pole of the 16th transistor M16 and the
One electric potential signal input terminal VGL is connected, and the first pole of the 17th transistor M17 is connected with second node N2, wherein the tenth
Seven transistor M17 are first switching element.
The grid of 18th transistor M18 is electrically connected with second node N2, the first pole and first of the 18th transistor M18
Electric potential signal input terminal VGL is connected, and the second pole of the 18th transistor M18 is connected with first node N1.
The grid of 19th transistor M19 is connected with scanning signal control terminal U2D is just swept, the 19th transistor M19's
First pole is connected with reset signal control terminal RSTF is just swept, the second pole of the 19th transistor M19 and the 23rd transistor
The grid of M23 is connected, and the grid of the 20th transistor M20 is connected with the anti-scanning signal control terminal D2U that sweeps, the 20th crystal
The first pole of pipe M20 is connected with the anti-reset signal control terminal RSTB that sweeps, the second pole and the 23rd of the 20th transistor M20
The grid of transistor M23 is connected.
The first end of first capacitor C1 is connected with first node N1, the second end of first capacitor C1 and the first electric potential signal
Input terminal VGL is connected, and the grid of the 21st transistor M21 is connected with first node N1, the 21st transistor M21's
First pole is connected with the first electric potential signal input terminal VGL, the second pole of the 21st transistor M21 and scanning signal output end
Gout is connected.
The first end of second capacitor C2 is connected with second node N2, and the second end and scanning signal of the second capacitor C2 exports
End Gout is connected, and the grid of the 20th two-transistor M22 is connected with second node N2, and the of the 20th two-transistor M22
One pole is connected with output signal control terminal OUT, the second pole and the scanning signal output end Gout phase of the 20th two-transistor M22
Connection.
The first pole of 23rd transistor M23 is connected with the second electric potential signal input terminal VGH, the 23rd transistor
The second pole of M23 is connected with first node N1.
The scan drive cell provided using the embodiment, second transistor M2, the 4th transistor M4, the 13rd transistor
M13 and the 17th transistor M17 distinguishes one end connection second node N2, and the other end connects the second end H of compensating module 16, can
Second node is avoided to leak electricity through second transistor M2, the 4th transistor M4, the 13rd transistor M13 and the 17th transistor M17.
Optionally, in one embodiment, referring to FIG. 6, scanning signal input terminal INF/INB includes just sweeping scanning signal
Input terminal INF sweeps scanning signal input terminal INB with counter, and reset signal control terminal RSTF/RSTB includes just sweeping reset signal control
End RSTF sweeps reset signal control terminal RSTB with counter, and scan drive cell further includes just sweeping scanning signal control terminal U2D to sweep with counter
Scanning signal control terminal D2U.
Scan drive cell include the first transistor M1, the 6th transistor M6, the 7th transistor M7, the 8th transistor M8,
9th transistor M9, the tenth transistor M10, the 11st transistor M11, the tenth two-transistor M12, the 13rd transistor M13,
14 transistor M14, the 15th transistor M15, the 16th transistor M16, the 17th transistor M17, the 18th transistor
M18, the 19th transistor M19, the 20th transistor M20, the 21st transistor M21, the 20th two-transistor M22, second
13 transistor M23, the 24th transistor M24 and the 25th transistor M25.
As described above, compensating module 16 includes the first transistor T1, and for other transistors, scan control module 11 is wrapped
Include the 24th transistor M24 and the 25th transistor M25；Reseting module 12 includes the 19th transistor M19 and the 20th
Transistor M20；Output module 13 includes that first capacitor C1 and the 21st transistor M21, the second capacitor C2 and the 22nd are brilliant
Body pipe M22；Pull-up module 14 includes the 23rd transistor M23；Pull-down module 15 includes the 16th transistor M16, the 17th
Transistor M17 and the 18th transistor M18；Resetting module 17 includes the 6th transistor M6, the 7th transistor M7, the 8th transistor
M8, the 9th transistor M9 and the tenth transistor M10；Protective module 18 include the 11st transistor M11, the tenth two-transistor M12,
13rd transistor M13 and the 14th transistor M14；Pulling down protective module 19 includes the 15th transistor M15.
In Fig. 6, connection relationship with transistor having the same in respective modules in Fig. 5 can refer to Fig. 5, herein not
It repeats again.
Difference is, the grid of the 24th transistor M24 with just sweep scanning signal input terminal INF and be connected, second
The first pole of 14 transistor M24 is connected with scanning signal control terminal U2D is just swept, the second pole of the 24th transistor M24
It is respectively connected with the second pole of the 6th transistor M6 and the 7th transistor M7；The grid of 25th transistor M25 is and instead
It sweeps scanning signal input terminal INB to be connected, scanning signal control terminal D2U phase is swept with counter in the first pole of the 25th transistor M25
Connection, the second pole of the 25th transistor M25 and the second pole of the 6th transistor M6 and the 7th transistor M7 are respectively connected with.
The grid of 6th transistor M6 and the 7th transistor M7 is connected with reset signal control terminal SET, the 6th crystal
The first pole of pipe M6 is connected with the second pole of the 7th transistor M7, and the first pole of the 6th transistor M6 and the 7th transistor M7
Second be extremely connected with the second end H of compensating module 16, the first pole of the 7th transistor M7 is connected with second node N2,
Wherein, the 7th transistor M7 is third switch element.
The grid of 8th transistor M8 and the 9th transistor M9 is connected with the output end of reseting module 12, the 8th crystal
The first pole of pipe M8 is connected with the second pole of the 9th transistor M9, and the first pole of the 8th transistor M8 and the 9th transistor M9
Second be extremely connected with the second end H of compensating module 16, the second pole of the 8th transistor M8 and scan control module 11
Output end Sout is connected, and the first pole of the 9th transistor M9 is connected with second node N2, wherein the 9th transistor M9 is the
Four switch elements.
The grid of tenth transistor M10 is connected with the output end Sout of scan control module 11, the tenth transistor M10's
First pole is connected with the first electric potential signal input terminal VGL, and the second pole of the tenth transistor M10 is connected with first node N1.
The scan drive cell provided using the embodiment, the 7th transistor M7, the 9th transistor M9, the 13rd transistor
M13 and the 17th transistor M17 distinguishes one end connection second node N2, and the other end connects the second end H of compensating module 16, can
Second node is avoided to leak electricity through the 7th transistor M7, the 9th transistor M9, the 13rd transistor M13 and the 17th transistor M17.
Fig. 7 is the schematic diagram of scan drive circuit provided in an embodiment of the present invention, in one embodiment, as shown in fig. 7,
As shown in fig. 7, the scan drive circuit includes N number of mutually cascade scan drive cell Vsr1, Vsr2 ..., VsrN, wherein
The scanning signal input terminal IN of 1st grade of scan drive cell Vsr1 drives for receiving starting shift signal STV from the 2nd grade of scanning
The scanning signal input terminal IN of moving cell Vsr2 to afterbody scan drive cell VsrN is separately connected upper level turntable driving
The scanning signal output end Gout of unit, so that scan drive cell at different levels is sequentially output scanning signal, wherein every level-one scanning
Driving unit can be any one of the above scan drive cell, have its feature and corresponding technical effect, no longer superfluous at this
It states.
Fig. 8 is the schematic diagram of display panel provided in an embodiment of the present invention, in one embodiment, as shown in figure 8, display
Panel includes the viewing area AA and non-display area BA for surrounding viewing area AA, wherein viewing area AA includes several display pixel sp, is shown
Show that pixel sp includes pixel circuit (not shown), pixel circuit includes scanning signal receiving end and data signal recipients；
Non-display area BA includes data drive circuit DC and scan drive circuit SC, wherein scan drive circuit SC can be above-mentioned
Any one scan drive circuit, has its feature and corresponding technical effect, repeats no more at this.Display panel further includes sweeping
Retouch line S and data line D, wherein the scanning of the scanning signal output end output of scan drive cell is driven in scan drive circuit SC
Dynamic signal is through scan line S transport to scanning signal receiving end, and the data drive signal of data drive circuit DC output is through data line D
Data signal recipients are transmitted to, by the control of scan drive circuit SC and data drive circuit DC, so that display pixel sp
It shows different grayscale, and then realizes the display of image.
In one embodiment, touch-control module is integrated in display panel, scan drive circuit SC is carrying out display scanning
During, after scanning certain line number, pause display scanning starts to carry out touch-control scanning, during touch-control scanning, by
The second node of each scan drive cell is able to maintain current potential in the setting of compensating module, scan drive circuit SC, in touch-control
After the completion of scanning, when being further continued for carrying out display scanning, scan lines at different levels can normally export effective scanning signal, avoid display surface
There is the phenomenon that " concealed wire " in plate, promotes display effect.
Through the foregoing embodiment it is found that scan drive cell provided by the invention, circuit and display panel, at least realize
Following beneficial effect：Scan drive cell is provided with compensating module, to the electric leakage on the second node in scan drive cell
Approach is intercepted, meanwhile, using the current potential of second node itself as the control end signal of compensating module, do not need separately to connect out
It closes, so that the structure of scan drive cell is simple, reduces the increase due to compensating module and excessive increase scan drive cell
Component, for application have the display panel of the scan drive cell for, on the second node in scan drive cell
Leakage current path intercepted, abnormal signal in scan line caused by capable of reducing due to electric leakage, meanwhile, by second node sheet
Control end signal of the current potential of body as compensating module, does not need separately to connect switch, can reduce the aobvious of scan drive cell occupancy
Show the rim area area of panel, is conducive to display panel and realizes narrow frame.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (15)
1. a kind of scan drive cell, which is characterized in that including：Scanning signal input terminal (INF/INB), reset signal control terminal
(RSTF/RSTB), the first electric potential signal input terminal (VGL), the second electric potential signal input terminal (VGH), scanning signal output end
(Gout), output signal control terminal (OUT), scan control module (11), reseting module (12), output module, pull-up module
(14), pull-down module (15) and compensating module (16), wherein：
The output module includes the first output branch and the second output branch, the control terminal electrical connection of the first output branch
First node (N1), the first end of the first output branch are electrically connected the first electric potential signal input terminal (VGL), and described the
The second end of one output branch is electrically connected the scanning signal output end (Gout), and the control terminal of the second output branch is electrically connected
It connects second node (N2), the first end electrical connection output signal control terminal (OUT) of the second output branch, described second
The second end for exporting branch is electrically connected the scanning signal output end (Gout)；
The input terminal of the scan control module (11) is electrically connected with the scanning signal input terminal (INF/INB), the scanning
The output end (Sout) of control module (11) is electrically connected with the second node；
The input terminal of the reseting module (12) is electrically connected with the reset signal control terminal (RSTF/RSTB), the reset mould
The output end of block (12) is electrically connected with the pull-up module (14)；
The pull-down module (15) and the first electric potential signal input terminal (VGL), the first node (N1) and described second
Node (N2) is electrically connected；
The pull-up module (14) and the reseting module (12), the second electric potential signal input terminal (VGH) and described first
Node (N1) is electrically connected；
The control terminal of the compensating module (16) is electrically connected with the second node (N2), the first end of the compensating module (16)
It is electrically connected with the second electric potential signal input terminal (VGH)；
Wherein, the current potential of the second node (N2) is controlled by the scan control module (11) and the pull-down module (15),
Control of Electric potentials of the current potential of the first node (N1) by the pull-up module (14) and the second node (N2), the drop-down
Module (15) includes drop-down branch, and the first end of the drop-down branch is connected with the second node (N2), the drop-down branch
The second end on road is connected with the second end (H) of the compensating module (16).
2. scan drive cell according to claim 1, which is characterized in that
The drop-down branch includes first switching element, the first end of the first switching element and the second node (N2) phase
Connection, the second end of the first switching element are connected with the second end (H) of the compensating module (16).
3. scan drive cell according to claim 1, which is characterized in that the scan control module (11) includes described
The first end of second switch element, the second switch element is connected with the second node (N2), the second switch member
The second end of part is connected with the second end (H) of the compensating module (16).
4. scan drive cell according to claim 1, which is characterized in that the scan drive cell further includes resetting letter
Number control terminal (SET) and resetting module, the resetting module include that the first resetting branch, the second resetting branch and third resetting are electric
Road, wherein：
The control terminal of the first resetting branch is electrically connected with the reset signal control terminal (SET), the first resetting branch
First end be electrically connected with the output end of the scan control module (11), the second end and described the of the first resetting branch
Two nodes (N2) electrical connection, wherein the first resetting branch includes third switch element, and the first of the third switch element
End is connected to the second node (N2), and the second end of the third switch element is connected to the second of the compensating module (16)
It holds (H)；
The control terminal of the second resetting branch is electrically connected with the output end of the reseting module (12), the second resetting branch
First end be electrically connected with the output end of the scan control module (11), the second end and described the of the second resetting branch
Two nodes (N2) electrical connection, wherein it is described second resetting branch include the 4th switch element, the first of the 4th switch element
End is connected to the second node (N2), and the second end of the 4th switch element is connected to the second of the compensating module (16)
It holds (H)；
The control terminal of the third resetting branch is electrically connected with the output end of the scan control module (11), the third resetting
The first end of branch is electrically connected with the first electric potential signal input terminal (VGL), the second end of the third resetting branch and institute
State first node (N1) electrical connection.
5. scan drive cell according to claim 1, which is characterized in that the scan drive cell further includes that power down is protected
Signal control terminal (GAS) and power down protection module are protected, the power down protection module includes the first protection branch, the second protection branch
Circuit is protected with third, wherein：
The control terminal of the first protection branch, the second protection branch and third protection circuit is protected with the power down
Protect signal control terminal (GAS) electrical connection；
The first end of the first protection branch is electrically connected with the first electric potential signal input terminal (VGL), first protection
The second end of branch is electrically connected with the first node (N1)；
The first end of the second protection branch is electrically connected with the first electric potential signal input terminal (VGL), second protection
The second end of branch is electrically connected with the second node (N2), wherein the second protection branch includes the 5th switch element, institute
The first end for stating the 5th switch element is connected to the second node (N2), and the second end of the 5th switch element is connected to institute
State the second end (H) of compensating module (16)；
The first end of the third protection branch is electrically connected with the second electric potential signal input terminal (VGH), the third protection
The second end of branch is electrically connected with the scanning signal output end (Gout).
6. scan drive cell according to claim 1, which is characterized in that the scan drive cell further includes that drop-down is protected
It protects module (19), wherein：
The control terminal of the drop-down protective module is electrically connected with the second electric potential signal input terminal (VGH), the drop-down protection
The first end of module be electrically connected with the control terminal of the second output branch, the second end and described the of the drop-down protective module
Two nodes (N2) electrical connection.
7. scan drive cell according to claim 1, which is characterized in that the compensating module (16) includes first crystal
It manages (T1), wherein：
The grid of the first transistor (T1) is the control terminal of the compensating module (16)；
The first end of the extremely described compensating module (16) of the first of the first transistor (T1), the first transistor (T1)
The second end (H) of the second extremely described compensating module (16).
8. scan drive cell according to claim 3, which is characterized in that
The scanning signal input terminal (INF/INB) inputs including just sweeping scanning signal input terminal (INF) and anti-scanning signal of sweeping
It holds (INB), the scan drive cell further includes just sweeping scanning signal control terminal (U2D) and counter sweeping scanning signal control terminal
(D2U), the scan control module (11) include second transistor (M2), third transistor (M3), the 4th transistor (M4) and
5th transistor (M5), wherein：
The grid of the second transistor (M2) and the third transistor (M3) is just sweeping scanning signal input terminal phase with described
Connection, the first pole of the second transistor (M2) are connected with the second pole of the third transistor (M3), and described second
The second of first pole of transistor (M2) and the third transistor (M3) extremely with the second end (H) of the compensating module (16)
It is connected, the second pole of the second transistor (M2) is connected with the second node (N2), the third transistor (M3)
The first pole be connected with the scanning signal control terminal (U2D) of just sweeping；
The grid of 4th transistor (M4) and the 5th transistor (M5) counter sweeps scanning signal input terminal with described
(INB) it is connected, the first pole of the 4th transistor (M4) is connected with the second pole of the 5th transistor (M5), and institute
State the 4th transistor (M4) the first pole and the 5th transistor (M5) second extremely with the compensating module (16) the
(H) is connected at two ends, and the second pole of the 4th transistor (M4) is connected with the second node (N2), the 5th crystal
First pole of pipe (M5) is connected with the anti-scanning signal control terminal (D2U) of sweeping,
Wherein, the second transistor (M2) and the 4th transistor (M4) are the second switch element.
9. scan drive cell according to claim 4, which is characterized in that
The first resetting branch includes the 6th transistor (M6) and the 7th transistor (M7), wherein the 6th transistor
(M6) it is connected with the reset signal control terminal (SET) with the grid of the 7th transistor (M7), the 6th crystal
First pole of pipe (M6) is connected with the second pole of the 7th transistor (M7), and the first pole of the 6th transistor (M6)
Extremely it is connected with the second end (H) of the compensating module (16) with the second of the 7th transistor (M7), the described 6th is brilliant
Second pole of body pipe (M6) is connected with the output end of the scan control module (11), and the first of the 7th transistor (M7)
Pole is connected with the second node (N2)；
The second resetting branch includes the 8th transistor (M8) and the 9th transistor (M9), wherein the 8th transistor
(M8) it is connected with the output end of the reseting module (12) with the grid of the 9th transistor (M9), the 8th crystal
First pole of pipe (M8) is connected with the second pole of the 9th transistor (M9), and the first pole of the 8th transistor (M8)
Extremely it is connected with the second end (H) of the compensating module (16) with the second of the 9th transistor (M9), the described 8th is brilliant
Second pole of body pipe (M8) is connected with the output end of the scan control module (11), and the first of the 9th transistor (M9)
Pole is connected with the second node (N2)；
Third resetting branch includes the tenth transistor (M10), wherein the grid of the tenth transistor (M10) with it is described
The output end of scan control module (11) is connected, the first pole of the tenth transistor (M10) and first electric potential signal
Input terminal (VGL) is connected, and the second pole of the tenth transistor (M10) is connected with the first node (N1),
Wherein, the 7th transistor (M7) is the third switch element, and the 9th transistor (M9) is opened for the described 4th
Close element.
10. scan drive cell according to claim 5, which is characterized in that
It is described first protection branch include the 11st transistor (M11), wherein the grid of the 11st transistor (M11) with
The power down protection signal control terminal (GAS) is connected, the first pole of the 11st transistor (M11) and first current potential
Signal input part (VGL) is connected, and the second pole of the 11st transistor (M11) is connected with the first node (N1)；
The second protection branch includes the tenth two-transistor (M12) and the 13rd transistor (M13), wherein the described 12nd
Transistor (M12) and the grid of the 13rd transistor (M13) are connected with the power down protection signal control terminal (GAS)
It connects, the first pole of the tenth two-transistor (M12) is connected with the second pole of the 13rd transistor (M13), and described
The second of first pole of the tenth two-transistor (M12) and the 13rd transistor (M13) extremely with the compensating module (16)
Second end (H) be connected, the second pole of the 13rd transistor (M13) is connected with the second node (N2), described
First pole of the tenth two-transistor (M12) is connected with the first electric potential signal input terminal (VGL)；
The third protects the 14th transistor (M14) of circuit, wherein the grid of the 14th transistor (M14) with it is described
Power down protection signal control terminal (GAS) is connected, the first pole of the 14th transistor (M14) and second electric potential signal
Input terminal (VGH) is connected, and the second pole of the 14th transistor (M14) is connected with the scanning signal output end (Gout)
It connects,
Wherein, the 13rd transistor (M13) is the 5th switch element.
11. scan drive cell according to claim 6, which is characterized in that
The drop-down protective module include the 15th transistor (M15), wherein the grid of the 15th transistor (M15) with
The second electric potential signal input terminal (VGH) is connected, the first pole of the 15th transistor (M) and the second output branch
The control terminal on road is connected, and the second pole of the 15th transistor (M15) is connected with the second node (N2).
12. scan drive cell according to claim 1, which is characterized in that the pull-up module (14) includes the 16th
Transistor (M16), the 17th transistor (M17) and the 18th transistor (M18), wherein：
The grid of 16th transistor (M16) and the 17th transistor (M17) with the first node (N1) phase
Connection, the first pole of the 16th transistor (M16) is connected with the second pole of the 17th transistor (M17), and institute
State the 16th transistor (M16) the first pole and the 17th transistor (M17) second extremely with the compensating module
(16) second end (H) is connected, the second pole of the 16th transistor (M16) and the first electric potential signal input terminal
(VGL) it is connected, the first pole of the 17th transistor (M17) is connected with the second node (N2)；
The grid of 18th transistor (M18) is electrically connected with the second node (N2), the 18th transistor (M18)
The first pole be connected with the first electric potential signal input terminal (VGL), the second pole of the 18th transistor (M18) and institute
First node (N1) is stated to be connected,
Wherein, the 17th transistor (M17) is the first switching element.
13. scan drive cell according to claim 1, which is characterized in that
The reset signal control terminal (RSTF/RSTB) includes just sweeping reset signal control terminal (RSTF) and counter sweeping reset signal control
End (RSTB) processed, the scan drive cell further include just sweeping scanning signal control terminal (U2D) and counter sweeping scanning signal control terminal
(D2U), the reseting module (12) includes the 19th transistor (M19) and the 20th transistor (M20), wherein the described tenth
The grid of nine transistors (M19) is connected with the scanning signal control terminal of just sweeping, and the first of the 19th transistor (M19)
Pole is connected with the reset signal control terminal of just sweeping, the second pole of the 19th transistor (M19) and the reseting module
(12) output end is connected, and the grid of the 20th transistor (M20) is connected with the anti-scanning signal control terminal of sweeping,
First pole of the 20th transistor (M20) is connected with the anti-reset signal control terminal of sweeping, the 20th transistor
(M20) the second pole is connected with the output end of the reseting module (12)；
The first output branch includes first capacitor (C1) and the 21st transistor (M21), wherein the first capacitor
(C1) first end is connected with the first node (N1), and the second end of the first capacitor (C1) and first current potential are believed
Number input terminal (VGL) is connected, and the grid of the 21st transistor (M21) is connected with the first node (N1), institute
The first pole for stating the 21st transistor (M21) is connected with the first electric potential signal input terminal (VGL), and the described 21st
Second pole of transistor (M21) is connected with the scanning signal output end (Gout)；
The second output branch includes the second capacitor (C2) and the 20th two-transistor (M22), wherein second capacitor
(C2) first end is connected with the second node (N2), and the second end and the scanning signal of second capacitor (C2) are defeated
Outlet (Gout) is connected, and the grid of the 20th two-transistor (M22) is connected with the second node (N2), and described
First pole of 20 two-transistors (M22) is connected with the output signal control terminal (OUT), the 20th two-transistor
(M22) the second pole is connected with the scanning signal output end (Gout)；
The pull-up module (14) includes the 23rd transistor (M23), wherein the grid of the 23rd transistor (M23)
Pole is connected with the output end of the reseting module (12), the first pole and described second of the 23rd transistor (M23)
Electric potential signal input terminal (VGH) is connected, the second pole and the first node (N1) phase of the 23rd transistor (M23)
Connection.
14. a kind of scan drive circuit, which is characterized in that including：Scanning described in multiple any one of claims 1 to 13 is driven
Moving cell, each scan drive cell cascade, wherein the scanning signal input terminal of the 1st grade of scan drive cell is used
Shift signal is originated in receiving, the scanning signal input terminal from the 2nd grade to scan drive cell described in afterbody is separately connected
The scanning signal output end (Gout) of scan drive cell described in upper level.
15. a kind of display panel, which is characterized in that including：
Viewing area and the non-display area for surrounding the viewing area；
The viewing area includes several display pixels, and the display pixel includes pixel circuit, and the pixel circuit includes scanning
Signal receiving end and data signal recipients；
The non-display area includes scan drive circuit described in data drive circuit and claim 14；
The display panel further includes scan line and data line, wherein scan drive cell described in the scan drive circuit
Scanning signal output end output scanning drive signal be transmitted to the scanning signal receiving end, the number through the scan line
The data signal recipients are transmitted to through the data line according to the data drive signal that driving circuit exports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108831367B (en) | 2021-07-09 |
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