CN108986732A - shift register circuit and display device - Google Patents
shift register circuit and display device Download PDFInfo
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- CN108986732A CN108986732A CN201810925485.3A CN201810925485A CN108986732A CN 108986732 A CN108986732 A CN 108986732A CN 201810925485 A CN201810925485 A CN 201810925485A CN 108986732 A CN108986732 A CN 108986732A
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- 238000003860 storage Methods 0.000 claims abstract description 146
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 136
- 238000006073 displacement reaction Methods 0.000 claims description 133
- 239000000758 substrate Substances 0.000 claims description 14
- 230000005611 electricity Effects 0.000 claims description 11
- 230000003139 buffering effect Effects 0.000 claims description 2
- 238000010408 sweeping Methods 0.000 claims 1
- 230000009471 action Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
- G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a shift register circuit and a display device. The shift temporary storage circuit comprises a plurality of stages of shift temporary storage units which are arranged in a cascade manner, each shift temporary storage unit comprises a charging module, an output module, a reset module and a voltage stabilizing module, each voltage stabilizing module comprises a first voltage stabilizing sub-module and a second voltage stabilizing sub-module, first ends of the first voltage stabilizing sub-module and the second voltage stabilizing sub-module are respectively and electrically connected with a low-frequency voltage stabilizing signal source and a high-frequency voltage stabilizing signal source, second ends of the first voltage stabilizing sub-module and the second voltage stabilizing sub-module are respectively and electrically connected with a scanning signal output end of the shift temporary storage unit of the current stage, third ends of the first voltage stabilizing sub-module and the second voltage stabilizing sub-module, the first voltage stabilizing submodule is communicated with a pull-up point, a scanning signal output end and a low level signal source, and the second voltage stabilizing submodule is communicated with the pull-up point, the scanning signal output end and the low level signal source when the high-frequency voltage stabilizing signal is at a high level. The technical scheme of the invention can eliminate timing noise.
Description
Technical field
The present invention relates to field of display technology, in particular to a kind of shift scratch circuit and display device.
Background technique
In traditional display device, line scan signals are realized by external integrated circuit, light with display device
Thinning, narrow frame and cost effective development generally use grid in array substrate at present and drive integrated (Gate Drive
On Array, GOA) realize line scan signals output, especially by the array that shift scratch circuit is integrated in display device
It is realized on substrate.However, clock signal is periodic signal, and same clock signal is past due in multi-clock shift scratch circuit
Toward the multiple displacement temporary storage units that can be controlled in shift scratch circuit, lead to the generation of timing noise, and then to display device
Display effect causes adverse effect.
Summary of the invention
The main object of the present invention is to propose a kind of shift scratch circuit, it is intended to solve in above-mentioned display device that there are timing
The technical issues of noise, improves the display effect of display device.
To achieve the above object, shift scratch circuit provided by the invention includes that the stages shift of cascade setting is temporary single
Member, the displacement temporary storage unit include charging module, output module, reseting module and Voltage stabilizing module, wherein the Voltage stabilizing module
Including the first pressure stabilizing submodule and the second pressure stabilizing submodule, the first end of the first pressure stabilizing submodule and low frequency voltage regulation signal source
Electrical connection, the second end of the first pressure stabilizing submodule are electrically connected with the scanning signal output end of the same level displacement temporary storage unit, institute
The third end for stating the first pressure stabilizing submodule is electrically connected with the pull-up of the same level displacement temporary storage unit point, the first pressure stabilizing submodule
4th end is electrically connected with low level signal source, when the low frequency voltage regulation signal that low frequency voltage regulation signal source generates is in high level,
The first pressure stabilizing submodule is connected to the pull-up point, the scanning signal output end and the low level signal source, to eliminate
The timing noise of the pull-up point and the scanning signal output end；The first end and high frequency pressure stabilizing of the second pressure stabilizing submodule
Signal source electrical connection, the second end of the second pressure stabilizing submodule are electrically connected with the scanning signal output end of the same level displacement temporary storage unit
It connects, the third end of the second pressure stabilizing submodule is electrically connected with the pull-up of the same level displacement temporary storage unit point, the second pressure stabilizing
4th end of module is electrically connected with the low level signal source, and the high frequency voltage regulation signal that high frequency voltage regulation signal source generates is in
When high level, the second pressure stabilizing submodule is connected to the pull-up point, the scanning signal output end and the low level signal
Source, to eliminate the timing noise of the pull-up point and the scanning signal output end.
Optionally, the first pressure stabilizing submodule includes first switch device and second switch device, the first switch
The grid of device is electrically connected with low frequency voltage regulation signal source, the drain electrode and the same level displacement temporary storage unit of the first switch device
The electrical connection of scanning signal output end, the source electrode of the first switch device is electrically connected with the low level signal source；Described
The grid of two switching devices is electrically connected with low frequency voltage regulation signal source, and the drain electrode of the second switch device and the same level displacement are temporary
The pull-up point of memory cell is electrically connected, and the source electrode of the second switch device is electrically connected with the low level signal source.
Optionally, high frequency voltage regulation signal source is previous stage signal source of clock；The second pressure stabilizing submodule includes the
Three switching devices and the 4th switching device, the grid of the third switching device are electrically connected with the previous stage signal source of clock,
The drain electrode of the third switching device is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the third derailing switch
The source electrode of part is electrically connected with the low level signal source；The grid and the previous stage signal source of clock of 4th switching device
Electrical connection, the drain electrode of the 4th switching device are electrically connected with the pull-up of the same level displacement temporary storage unit point, the 4th derailing switch
The source electrode of part is electrically connected with the low level signal source.
Optionally, the displacement temporary storage unit further includes the 5th switching device, the grid and sheet of the 5th switching device
The pull-up point electrical connection of grade displacement temporary storage unit, drain electrode and the high frequency voltage regulation signal source of the 5th switching device are electrically connected
It connects, the source electrode of the 5th switching device is electrically connected with the low level signal source.
Optionally, low frequency voltage regulation signal source include the 6th switching device, the 7th switching device, the 8th switching device,
9th switching device, the tenth switching device and the 11st switching device, the grid of the 6th switching device and drain electrode and low frequency
Signal source of clock electrical connection；The grid of 7th switching device is electrically connected with the source electrode of the 6th switching device, and described
The drain electrode of seven switching devices is electrically connected with the drain electrode of the 6th switching device, the source electrode of the 7th switching device and described the
The first end of one pressure stabilizing submodule is electrically connected；The grid of 8th switching device and the pull-up point of previous stage displacement temporary storage unit
Electrical connection, the drain electrode of the 8th switching device are electrically connected with the source electrode of the 7th switching device, the 8th switching device
Source electrode be electrically connected with the low level signal source；The grid of 9th switching device is upper with previous stage displacement temporary storage unit
Point electrical connection is drawn, the drain electrode of the 9th switching device is electrically connected with the grid of the 7th switching device, the 9th switch
The source electrode of device is electrically connected with the low level signal source；The grid of tenth switching device and the same level displacement temporary storage unit
Pull-up point electrical connection, the drain electrode of the tenth switching device are electrically connected with the source electrode of the 7th switching device, and the described tenth opens
The source electrode for closing device is electrically connected with the low level signal source；The grid and the same level shift register list of 11st switching device
The pull-up point electrical connection of member, the drain electrode of the 11st switching device is electrically connected with the grid of the 7th switching device, described
The source electrode of 11st switching device is electrically connected with the low level signal source.
Optionally, the charging module includes the 12nd switching device, the grid and prime of the 12nd switching device
The feedback signal output of displacement temporary storage unit is electrically connected, the drain electrode of the 12nd switching device and the 12nd derailing switch
The grid of part or the electrical connection of high level signal source, the source electrode of the 12nd switching device and the pull-up of the same level displacement temporary storage unit
Point electrical connection.
Optionally, the output module includes the 13rd switching device, the grid and the same level of the 13rd switching device
The pull-up point of displacement temporary storage unit is electrically connected, and the drain electrode of the 13rd switching device is electrically connected with the same level signal source of clock, institute
The source electrode for stating the 13rd switching device is electrically connected with the scanning signal output end of the same level displacement temporary storage unit.
Optionally, the output module further includes the 14th switching device, the grid and sheet of the 14th switching device
The pull-up point electrical connection of grade displacement temporary storage unit, the drain electrode of the 14th switching device are electrically connected with the same level signal source of clock,
The source electrode of 14th switching device is electrically connected with the feedback signal output of the same level displacement temporary storage unit.
Optionally, the reseting module includes the 15th switching device and sixteenmo closes device, the 15th switch
The grid of device is electrically connected with the drop-down point of the same level displacement temporary storage unit, and the drain electrode of the 15th switching device and the same level shift
The scanning signal output end of temporary storage location is electrically connected, and source electrode and the low level signal source of the 15th switching device are electrically connected
It connects；The grid that the sixteenmo closes device is electrically connected with the drop-down point of the same level displacement temporary storage unit, and the sixteenmo closes device
The drain electrode of part is electrically connected with the pull-up of the same level displacement temporary storage unit point, the source electrode of sixteenmo pass device and the low level
Signal source electrical connection；Wherein, the feedback signal output of the drop-down point of the same level displacement temporary storage unit and rear class displacement temporary storage unit
Electrical connection.
To achieve the above object, the present invention also proposes a kind of display device, the display device include display panel and
Driving unit, the driving unit include shift scratch circuit, and the shift scratch circuit includes the stages shift of cascade setting
Temporary storage location, the displacement temporary storage unit include charging module, output module, reseting module and Voltage stabilizing module, wherein described steady
Die block includes the first pressure stabilizing submodule and the second pressure stabilizing submodule, the first end and low frequency pressure stabilizing of the first pressure stabilizing submodule
Signal source electrical connection, the second end of the first pressure stabilizing submodule are electrically connected with the scanning signal output end of the same level displacement temporary storage unit
It connects, the third end of the first pressure stabilizing submodule is electrically connected with the pull-up of the same level displacement temporary storage unit point, the first pressure stabilizing
4th end of module is electrically connected with low level signal source, and the low frequency voltage regulation signal that low frequency voltage regulation signal source generates is in high electricity
Usually, the first pressure stabilizing submodule is connected to the pull-up point, the scanning signal output end and the low level signal source, with
Eliminate the timing noise of the pull-up point and the scanning signal output end；The first end and high frequency of the second pressure stabilizing submodule
The electrical connection of voltage regulation signal source, the second end of the second pressure stabilizing submodule and the scanning signal output end of the same level displacement temporary storage unit
Electrical connection, the third end of the second pressure stabilizing submodule are electrically connected with the pull-up of the same level displacement temporary storage unit point, and described second is steady
4th end of pressure submodule is electrically connected with the low level signal source, the high frequency voltage regulation signal that high frequency voltage regulation signal source generates
When in high level, the second pressure stabilizing submodule is connected to the pull-up point, the scanning signal output end and the low level
Signal source, to eliminate the timing noise of the pull-up point and the scanning signal output end, the shift scratch circuit is array
Grid drive integrated circult on substrate.
In the technical solution of the present invention, shift scratch circuit includes the stages shift temporary storage location of cascade setting, and displacement is temporary
Memory cell includes charging module, output module, reseting module and Voltage stabilizing module, wherein Voltage stabilizing module includes the first pressure stabilizing submodule
The first end of block and the second pressure stabilizing submodule, the first pressure stabilizing submodule is electrically connected with low frequency voltage regulation signal source, the first pressure stabilizing submodule
The second end of block is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the third end of the first pressure stabilizing submodule and sheet
The pull-up point electrical connection of grade displacement temporary storage unit, the 4th end of the first pressure stabilizing submodule are electrically connected with low level signal source, low frequency
When the low frequency voltage regulation signal that voltage regulation signal source generates is in high level, the first pressure stabilizing submodule connection pull-up point, scanning signal are defeated
Outlet and low level signal source, to eliminate the timing noise of pull-up point and scanning signal output end；The of second pressure stabilizing submodule
One end is electrically connected with high frequency voltage regulation signal source, the second end of the second pressure stabilizing submodule and the scanning signal of the same level displacement temporary storage unit
Output end electrical connection, the third end of the second pressure stabilizing submodule are electrically connected with the pull-up of the same level displacement temporary storage unit point, the second pressure stabilizing
4th end of submodule is electrically connected with low level signal source, and the high frequency voltage regulation signal that high frequency voltage regulation signal source generates is in high level
When, the second pressure stabilizing submodule connection pull-up point, scanning signal output end and low level signal source, to eliminate pull-up point and scanning letter
The timing noise of number output end.By the way that the first pressure stabilizing submodule and the second pressure stabilizing submodule are arranged simultaneously, respectively in low frequency pressure stabilizing
Under the action of signal and high frequency voltage regulation signal, make pull-up point, scanning signal output end and the low level signal of displacement temporary storage unit
Source is connected, and the discharge channel of the pull-up point and scanning signal output end of displacement temporary storage unit is increased, to make it default
Moment is maintained at low level state, to effectively eliminate timing noise that may be present in display device, so as to improve display dress
The display effect set.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
The structure shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the electrical block diagram of n-th grade of displacement temporary storage unit of the shift scratch circuit of example；
Fig. 2 is the time diagram of the 8CK shift scratch circuit of example；
Fig. 3 is the structural schematic diagram of one embodiment of the display device of that present invention；
Fig. 4 is the modular structure schematic diagram of n-th grade of displacement temporary storage unit in one embodiment of shift scratch circuit of the present invention；
Fig. 5 is the circuit structure signal of n-th grade of displacement temporary storage unit in another embodiment of shift scratch circuit of the present invention
Figure；
Fig. 6 is the time diagram of 8CK shift scratch circuit in the another embodiment of shift scratch circuit of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
It is to be appreciated that if relating to directionality instruction (such as up, down, left, right, before and after ...) in the embodiment of the present invention,
Then directionality instruction be only used for explain under a certain particular pose (as shown in the picture) between each component relative positional relationship,
Motion conditions etc., if the particular pose changes, directionality instruction is also correspondingly changed correspondingly.
In addition, being somebody's turn to do " first ", " second " etc. if relating to the description of " first ", " second " etc. in the embodiment of the present invention
Description be used for description purposes only, be not understood to indicate or imply its relative importance or implicitly indicate indicated skill
The quantity of art feature." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one spy
Sign.It in addition, the technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not the present invention claims protection scope within.
Fig. 1 show the electrical block diagram of n-th grade of displacement temporary storage unit of the shift scratch circuit of example, n-th
Under the action of grade preliminary filling signal ST ' (n), n-th grade of pull-up point is precharged, wherein the corresponding pull up signal of n-th grade of pull-up point is
PU'(n).Simultaneously as the coupled capacitor C ' gd between the grid and drain electrode of switching element T 13 ', so that n-th grade of clock signal
CK ' (n) is coupled to the pull-up point of the same level displacement temporary storage unit, when n-th grade of clock signal CK ' (n) is in high level, derailing switch
Part T13 ' is opened, and the source electrode of n-th grade of clock signal transmission to switching element T 13 ' generates the height in n-th grade of scanning signal G ' (n)
Level.The grid of switching element T 15 ' and switching element T 16 ' is electrically connected with the pulldown signal source of the same level displacement temporary storage unit, source
Pole is electrically connected with low level signal source, and the drain electrode of switching element T 15 ' is electrically connected with scanning signal output end, switching device
The drain electrode of T16 ' is electrically connected with pull-up point, realizes the reset of n-th grade of scanning signal G ' (n).Switching element T 14 ' shown in Fig. 1
Grid and drain electrode are completely the same with the grid of switching element T 13 ' and the connection of drain electrode, and switching element T 14 ' is to export n-th grade
Feedback signal F ' (n), n-th grade of feedback signal F ' (n) are consistent with n-th grade of scanning signal G ' (n).It is of course also possible to save setting
Switching element T 14 ', and n-th grade of feedback signal F ' (n) is directly exported from the source electrode of switching element T 13 '.Fig. 2 show Fig. 1 pairs
The time diagram for the shift scratch circuit answered, by taking eight clocks (CK8) shift scratch circuit as an example, since clock signal is the period
Signal, and same clock signal often controls multiple displacement temporary storage units, such as the 4th grade of clock signal CK ' (4) will control
4+8m grades of displacement temporary storage units, wherein m is the integer more than or equal to zero.Meanwhile when clock signal is in high level, meeting
Each displacement temporary storage unit controlled with it is coupled, and switching element T 13 ' and/or opening by mistake for T14 ' is caused to open, and then causes such as figure
The generation of timing noise shown in dotted-line ellipse frame in 2.In example, timing can be eliminated by setting Voltage stabilizing module 111 '
Noise.Specifically, Voltage stabilizing module 111 ' includes drop-down submodule and drop-down control submodule, submodule is pulled down to maintain the same level
The pull-up point of displacement temporary storage unit is in low level state in predetermined time, to eliminate timing noise, and pulls down control submodule
Operation of the block to control drop-down submodule.111 ' entirety of Voltage stabilizing module in example can be under the control of low frequency voltage regulation signal
Operation.
The present invention proposes a kind of shift scratch circuit, to eliminate the timing noise in display device.It is real of the invention one
It applies in example, as shown in Figure 3 and Figure 4, shift scratch circuit includes the stages shift temporary storage location of cascade setting, displacement temporary storage unit
Including charging module 112, output module 113, reseting module 114 and Voltage stabilizing module 111, wherein Voltage stabilizing module 111 includes first
The first end L1 of pressure stabilizing submodule 111a and the second pressure stabilizing submodule 111b, the first pressure stabilizing submodule 111a and low frequency voltage regulation signal
Source electrical connection, the second end L2 of the first pressure stabilizing submodule 111a and the scanning signal output end of the same level displacement temporary storage unit are electrically connected
It connects, the third end L3 of the first pressure stabilizing submodule 111a is electrically connected with the pull-up of the same level displacement temporary storage unit point, the first pressure stabilizing submodule
The 4th end L4 of block 111a is electrically connected with low level signal source, the place low frequency voltage regulation signal P1 (n) that low frequency voltage regulation signal source generates
When high level, the first pressure stabilizing submodule 111a connection pull-up point, scanning signal output end and low level signal source, on eliminating
Draw the timing noise of point and scanning signal output end；The first end H1 of second pressure stabilizing submodule 111b and high frequency voltage regulation signal source electricity
Connection, the second end H2 of the second pressure stabilizing submodule 111b are electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the
The third end H3 of two pressure stabilizing submodule 111b is electrically connected with the pull-up of the same level displacement temporary storage unit point, the second pressure stabilizing submodule 111b
The 4th end H4 be electrically connected with low level signal source, the high frequency voltage regulation signal P2 (n) that high frequency voltage regulation signal source generates is in high electricity
Usually, the second pressure stabilizing submodule 111b connection pull-up point, scanning signal output end and low level signal source, with eliminate pull-up point and
The timing noise of scanning signal output end.
Concrete scheme of the invention will be hereinafter described in detail by taking liquid crystal display device as an example.As shown in figure 3,
Display device includes display panel, display panel include array substrate 100, color filter substrate 200 and be filled in array substrate 100 with
Liquid crystal (not shown) between color filter substrate 200.Multiple pixels of rectangular array shape arrangement are provided on display panel,
Each pixel generally includes several sub-pixels, and switching device corresponding with each sub-pixel, colour filter are provided in array substrate 100
Colour filter block corresponding with each sub-pixel is provided on substrate 200.Under the control of 100 upper switch device of array substrate, respectively
Liquid crystal in the corresponding region of a sub-pixel is according to certain angular deflection, to realize the display of specific image.In GOA framework
In display device, shift scratch circuit 110 is additionally provided in array substrate 100, to drive each row sub-pixel.Pass through micro Process
Shift scratch circuit 110 is directly integrated in array substrate 100 by technique, to save external shift scratch circuit, is conducive to
The material cost and process costs of display device are reduced, while being conducive to the lightening and narrow frameization design of display device.
Shift scratch circuit 110 is developed on the basis of thompson circuit, and the stages shift including cascade setting is temporary
Memory cell, wherein the feedback signal F (n-i) of preceding shift temporary storage location output can be used as the preliminary filling of the same level displacement temporary storage unit
Signal ST (n), the feedback signal F (n+j) of rear class displacement temporary storage unit output can be used as the drop-down letter of the same level displacement temporary storage unit
Number PD (n), wherein i and j is respectively positive integer, and specific value is related to the timing in shift scratch circuit, no longer superfluous herein
It states.Scanning signal and feedback signal with level-one displacement temporary storage unit are usually consistent, for first order displacement temporary storage unit,
Redundancy can be can be set for afterbody displacement temporary storage unit using the initial signal being provided separately as its preliminary filling signal
Displacement temporary storage unit provide pulldown signal for it.
In every level-one displacement temporary storage unit, as shown in figure 4, the first end of charging module 112 receives preliminary filling signal ST
(n), the second end of charging module 112 is connected with the first end of output module 113, and charging module 112 and output module 113 it
Between be the same level displacement temporary storage unit pull-up point, the corresponding pull up signal of pull-up point indicates with PU (n).The of output module 113
Two ends receive clock signal CK (n), it should be noted that in shift scratch circuit, same clock signal is often to control
Stages shift temporary storage location, for example, t grades of clock signals will control t+Tm grades of displacements for TCK shift scratch circuit
Temporary storage location, wherein m is the integer more than or equal to zero, and T is the sum of signal source of clock.The third end of output module 113 is defeated
Scanning signal G (n) out, the 4th end export feedback signal F (n), wherein scanning signal G (n) is to drive corresponding sub-pixel
Row, feedback signal F (n) is usually completely the same with scanning signal G (n), to the pulldown signal as preceding shift temporary storage location.
The first end of reseting module 114 is connected to the pull-up point of the same level displacement temporary storage unit, and the second end of reseting module 114 is connected to defeated
The third end of module 113 out, the third end of reseting module 114 are connected to low level signal source, the 4th termination of reseting module 114
Receive the pulldown signal PD (n) of the same level displacement temporary storage unit.Under the control of pulldown signal PD (n), reseting module 114 will be pulled up a little
It is pulled down to low level with scanning signal output end, to maintain the normal operation of shift scratch circuit, realizes progressive scan driving.
It further include pressure stabilizing to preferably eliminate timing noise that may be present, displacement temporary storage unit in shift scratch circuit
Module 111.As shown in figure 4, Voltage stabilizing module 111 includes the first pressure stabilizing submodule 111a and the second pressure stabilizing submodule 111b.First
The first end L1 of pressure stabilizing submodule 111a is electrically connected with low frequency voltage regulation signal source, to receive low frequency voltage regulation signal P1 (n)；First is steady
The second end L2 of pressure submodule 111a is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, to pull down scanning signal
Output end is to low level；The third end L3 of first pressure stabilizing submodule 111a is electrically connected with the pull-up of the same level displacement temporary storage unit point,
It pulls below a little to low level；The 4th end L4 of first pressure stabilizing submodule 111a is electrically connected with low level signal source, to receive
Low level signal VSS.When the low frequency voltage regulation signal P1 (n) that low frequency voltage regulation signal source generates is in high level, the first pressure stabilizing
Module 111a connection pull-up point, scanning signal output end and low level signal source, to eliminate pull-up point and scanning signal output end
Timing noise.Similarly, the first end H1 of the second pressure stabilizing submodule 111b is electrically connected with high frequency voltage regulation signal source, to receive high frequency
Voltage regulation signal P2 (n)；The second end H2 of second pressure stabilizing submodule 111b and the scanning signal output end of the same level displacement temporary storage unit
Electrical connection, to pull down scanning signal output end to low level；Third end H3 and the same level displacement of second pressure stabilizing submodule 111b is temporary
The pull-up point of memory cell is electrically connected, and is pulled below a little to low level；The 4th end H4 and low electricity of second pressure stabilizing submodule 111b
Flat signal source electrical connection, to receive low level signal VSS.When the place high frequency voltage regulation signal P2 (n) that high frequency voltage regulation signal source generates
When high level, the second pressure stabilizing submodule connection pull-up point, scanning signal output end and low level signal source, to eliminate pull-up point
With the timing noise of scanning signal output end.It is corresponding by design low frequency voltage regulation signal P1 (n) and high frequency voltage regulation signal P2 (n)
Timing, so that at the time of displacement temporary storage unit is likely to occur timing noise, low frequency voltage regulation signal P1 (n) and high frequency voltage regulation signal
P2 (n) is in high level state, so that scanning signal output end and pull-up point are pulled down to low level state, realizes scanning letter
The repid discharge of number output end and pull-up point ensures the normal operation of display device thoroughly to eliminate timing noise.Wherein, it fills
Electric module 112, output module 113, reseting module 114 and Voltage stabilizing module 111 physical circuit there are a variety of set-up modes, hereinafter
In one of which will be specifically addressed.
In the present embodiment, shift scratch circuit includes the stages shift temporary storage location of cascade setting, displacement temporary storage unit
Including charging module 112, output module 113, reseting module 114 and Voltage stabilizing module 111, wherein Voltage stabilizing module 111 includes first
The first end L1 of pressure stabilizing submodule 111a and the second pressure stabilizing submodule 111b, the first pressure stabilizing submodule 111a and low frequency voltage regulation signal
Source electrical connection, the second end L2 of the first pressure stabilizing submodule 111a and the scanning signal output end of the same level displacement temporary storage unit are electrically connected
It connects, the third end L3 of the first pressure stabilizing submodule 111a is electrically connected with the pull-up of the same level displacement temporary storage unit point, the first pressure stabilizing submodule
The 4th end L4 of block 111a is electrically connected with low level signal source, the place low frequency voltage regulation signal P1 (n) that low frequency voltage regulation signal source generates
When high level, the first pressure stabilizing submodule 111a connection pull-up point, scanning signal output end and low level signal source, on eliminating
Draw the timing noise of point and scanning signal output end；The first end H1 of second pressure stabilizing submodule 111b and high frequency voltage regulation signal source electricity
Connection, the second end H2 of the second pressure stabilizing submodule 111b are electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the
The third end H3 of two pressure stabilizing submodule 111b is electrically connected with the pull-up of the same level displacement temporary storage unit point, the second pressure stabilizing submodule 111b
The 4th end H4 be electrically connected with low level signal source, the high frequency voltage regulation signal P2 (n) that high frequency voltage regulation signal source generates is in high electricity
Usually, the second pressure stabilizing submodule 111b connection pull-up point, scanning signal output end and low level signal source, with eliminate pull-up point and
The timing noise of scanning signal output end.By the way that the first pressure stabilizing submodule 111a and the second pressure stabilizing submodule 111b is arranged simultaneously,
Respectively under the action of low frequency voltage regulation signal P1 (n) and high frequency voltage regulation signal P2 (n), makes the pull-up point of displacement temporary storage unit, sweeps
It retouches signal output end to be connected with low level signal source, increases the pull-up point and scanning signal output end of displacement temporary storage unit
Discharge channel, so that it be made to be maintained at low level state in predetermined time, by effectively eliminate in display device it is that may be present in terms of
When noise, avoid timing noise from eliminating halfway problem, so as to improve the display effect of display device.
In another embodiment of the invention, as shown in figure 5, the first pressure stabilizing submodule 111a includes first switch device T1
It is electrically connected with the grid of second switch device T2, first switch device T1 with low frequency voltage regulation signal source, to receive low frequency pressure stabilizing letter
Number P1 (n), the drain electrode of first switch device T1 are electrically connected with the scanning signal output end of the same level displacement temporary storage unit, first switch
The source electrode of device T1 is electrically connected with low level signal source；The grid of second switch device T2 is electrically connected with low frequency voltage regulation signal source,
To receive low frequency voltage regulation signal P1 (n), the drain electrode of second switch device T2 is electrically connected with the pull-up of the same level displacement temporary storage unit point,
The source electrode of second switch device T2 is electrically connected with low level signal source.When low frequency voltage regulation signal is in high level state, first
Switching element T 1 and second switch device T2 are on state, thus under the action of low level signal VSS, it respectively will be upper
Point and scanning signal output end is drawn to be pulled down to low level state, to eliminate the influence of timing noise.It should be noted that hereinafter
By by taking the switching device in shift scratch circuit is n-type thin film transistor as an example, scheme is specifically addressed.
As shown in figure 5, high frequency voltage regulation signal source is previous stage signal source of clock, the second pressure stabilizing submodule 111b includes third
The grid of switching element T 3 and the 4th switching element T 4, third switching element T 3 is electrically connected with previous stage signal source of clock, to connect
It receives previous stage clock signal CK (n-1), the drain electrode of third switching device and the scanning signal output end of the same level displacement temporary storage unit
Electrical connection, the source electrode of third switching device are electrically connected with low level signal source；When the grid and previous stage of the 4th switching element T 4
Clock signal source electrical connection, to receive previous stage clock signal CK (n-1), the drain electrode of the 4th switching device and the same level shift register list
The pull-up point electrical connection of member, the source electrode of the 4th switching device are electrically connected with low level signal source.Current Primary Clock signal CK (n-
1) when being in high level state, third switching element T 3 and the 4th switching element T 4 are on state, thus in low level
Under the action of signal VSS, pull-up point and scanning signal output end are pulled down to low level state respectively, to eliminate timing noise
It influences.It should be noted that the second pressure stabilizing submodule 111b further includes corresponding switching device (not shown), by previous stage
Clock signal CK (n-1) is converted to high frequency voltage regulation signal P2 (n), unnecessary in previous stage clock signal CK (n-1) to eliminate
High level retains required high level only to generate high frequency voltage regulation signal P2 (n), to avoid the function to displacement temporary storage unit
Generate interference.
As shown in figure 5, displacement temporary storage unit further includes the 5th switching element T 5, the grid and the same level of the 5th switching element T 5
The pull-up point of displacement temporary storage unit is electrically connected, and the drain electrode of the 5th switching element T 5 is electrically connected with high frequency voltage regulation signal source, and the 5th opens
The source electrode for closing device T5 is electrically connected with low level signal source.As the corresponding pull up signal PU of the same level displacement temporary storage unit pull-up point
(n) when being in high level state, show that the same level displacement temporary storage unit will generate the high level of scanning signal G (n), at this time the 5th
Switching element T 5 is in the conductive state, under the action of low level signal VSS, the first end H1 quilt of the second pressure stabilizing submodule 111b
It is pulled down to low level state, the second pressure stabilizing submodule 111b control pull-up point and scanning signal output end and low level signal source is disconnected
Open, to avoid will pull up a little and scanning signal output end clamper low level state and the high level to scanning signal G (n) production
Life interferes.
As shown in figure 5, low frequency voltage regulation signal source includes the 6th switching element T 6, the 7th switching element T 7, the 8th derailing switch
Part T8, the 9th switching element T 9, the tenth switching element T 10 and the 11st switching element T 11, wherein the 6th switching element T 6
Grid and drain electrode are electrically connected with low-frequency clock signal source；The grid of 7th switching element T 7 and the source electrode electricity of the 6th switching element T 6
Connection, the drain electrode of the 7th switching element T 7 is electrically connected with the drain electrode of the 6th switching element T 6, the source electrode of the 7th switching element T 7 and
The first end of first pressure stabilizing submodule is electrically connected；The grid of 8th switching element T 8 and the pull-up point of previous stage displacement temporary storage unit
Electrical connection, the drain electrode of the 8th switching element T 8 are electrically connected with the source electrode of the 7th switching element T 7, the source electrode of the 8th switching element T 8
It is electrically connected with low level signal source；The grid of 9th switching element T 9 is electrically connected with the pull-up of previous stage displacement temporary storage unit point,
The drain electrode of 9th switching element T 9 is electrically connected with the grid of the 7th switching element T 7, the source electrode and low level of the 9th switching element T 9
Signal source electrical connection；The grid of tenth switching element T 10 is electrically connected with the pull-up of the same level displacement temporary storage unit point, the tenth derailing switch
The drain electrode of part T10 is electrically connected with the source electrode of the 7th switching element T 7, the source electrode of the tenth switching element T 10 and low level signal source electricity
Connection；The grid of 11st switching element T 11 is electrically connected with the pull-up of the same level displacement temporary storage unit point, the 11st switching device
The drain electrode of T11 is electrically connected with the grid of the 7th switching device, and source electrode and the low level signal source of the 11st switching element T 11 are electrically connected
It connects.Low-frequency clock signal LCK is converted to low frequency voltage regulation signal P1 (n) by low frequency voltage regulation signal source, eliminates timing noise to meet
Demand, while avoid to pull up a little and scanning signal output end always clamper in low level state and to scanning signal G's (n)
The generation of high level interferes.Specifically, the pull up signal PU (n-1) when previous stage displacement temporary storage unit is in time high level
When with high level state, the 8th switching element T 8 and the 9th switching element T 9 are in the conductive state, to make the 7th switching device
The first end L1 of the grid of T7 and the first pressure stabilizing submodule 111a are in low level state under the action of low level signal VSS,
At this point, the 7th switching element T 7, first switch device T1 and second switch device T2 are in off state, the same level shift register
The pull-up point of unit is separated with low level signal source.Similarly, when the pull up signal PU (n) of the same level displacement temporary storage unit is in
When secondary high level and high level state, the tenth switching element T 10 and the 11st switching element T 11 are on state, thus
The first end L1 of the grid and the first pressure stabilizing submodule 111a that make the 7th switching element T 7 under the action of low level signal VSS at
In low level state, at this point, the 7th switching element T 7, first switch device T1 and second switch device T2 are in shutdown shape
State, the pull-up point of the same level displacement temporary storage unit are separated with low level signal source.That is, in preceding shift temporary storage location
When being under time high level and high level state with the pull up signal of the same level displacement temporary storage unit, corresponding low frequency voltage regulation signal P1
(n) be in low level state, pull-up point and scanning signal output end and low level signal source it is separated, to avoid pulling up point
Low level state is clamped at scanning signal output end and the generation of the high level of the same level scanning signal is interfered.
Meanwhile by the way that two groups of symmetrical low frequency voltage regulation signal sources are arranged, low frequency voltage regulation signal is realized within certain period
The switching in source, to improve the service life of each related switch device and low-frequency clock signal source.When in low frequency voltage regulation signal source
When low-frequency clock signal LCK is in high level state, corresponding low frequency voltage regulation signal source is in use, conversely, corresponding low
Frequency voltage regulation signal source is in unused state.Wherein, the frequency of low-frequency clock signal LCK usually can be set to display device
The one of the integer of frame frequency point.
As shown in figure 5, charging module 112 include the 12nd switching element T 12, the grid of the 12nd switching element T 12 with
The feedback signal output of preceding shift temporary storage location is electrically connected, the drain electrode of the 12nd switching element T 12 and the 12nd derailing switch
The grid of part or the electrical connection of high level signal source, the source electrode of the 12nd switching element T 12 and the pull-up of the same level displacement temporary storage unit
Point electrical connection, to realize the preliminary filling of pull-up point.
As shown in figure 5, output module 113 include the 13rd switching element T 13, the grid of the 13rd switching element T 13 with
The pull-up point of the same level displacement temporary storage unit is electrically connected, and the drain electrode of the 13rd switching element T 13 is electrically connected with the same level signal source of clock,
The source electrode of 13rd switching element T 13 is electrically connected with the scanning signal output end of the same level displacement temporary storage unit.When the 13rd switch
When device T13 is connected under the action of pull up signal PU (n), clock signal CK (n) is in high level, to generate scanning signal
The high level of G (n).In addition, coupling can also be arranged between the pull-up point and scanning signal output end of the same level displacement temporary storage unit
Capacitor C is closed, couples clock signal CK (n) preferably with pull-up point, to generate the high level of scanning signal G (n).
Further, output module 113 further includes the 14th switching element T 14, the grid of the 14th switching element T 14 with
The pull-up point of the same level displacement temporary storage unit is electrically connected, and the drain electrode of the 14th switching element T 14 is electrically connected with the same level signal source of clock,
The source electrode of 14th switching element T 14 is electrically connected with the feedback signal output of the same level displacement temporary storage unit.14th derailing switch
Part 114 is identical with the working principle of the 13rd switching device 113, generated feedback signal F (n) also with scanning signal G (n) phase
Unanimously, drop-down of the feedback signal F (n) to preliminary filling signal or preceding shift temporary storage location as rear class displacement temporary storage unit
Signal.Certainly, in other embodiments, the 14th switching element T 14 can be merged into same with the 13rd switching element T 13
Device, and the same level scanning signal G (n) and feedback signal F (n) are drawn respectively.
As shown in figure 5, reseting module 114 includes that the 15th switching element T 15 and sixteenmo close device T16, the 15th
The grid of switching element T 15 is electrically connected with the drop-down point of the same level displacement temporary storage unit, the drain electrode and sheet of the 15th switching element T 15
The scanning signal output end electrical connection of grade displacement temporary storage unit, the source electrode of the 15th switching element T 15 and low level signal source electricity
Connection；The grid that sixteenmo closes device T16 is electrically connected with the drop-down point of the same level displacement temporary storage unit, and sixteenmo closes device
The drain electrode of T16 is electrically connected with the pull-up of the same level displacement temporary storage unit point, and sixteenmo closes the source electrode and low level signal of device T16
Source electrical connection；Wherein, the drop-down point of the same level displacement temporary storage unit and the feedback signal output of rear class displacement temporary storage unit are electrically connected
It connects.In reseting module 114, under the action of pulldown signal PD (n), controls the 15th switching element T 15 and sixteenmo closes device
The on-off of part T16 is pulled on a little below and scanning signal output end is to low level, realizes progressive scan.
As shown in fig. 6, the time diagram for based on shift scratch circuit corresponding in Fig. 5, in the case of 8CK.According to Fig. 6
It is found that the timing noise under the collective effect of low frequency voltage regulation signal and high frequency voltage regulation signal, in pull up signal and scanning signal
It is effectively eliminated, as shown in dotted-line ellipse frame in Fig. 6.
The present invention also proposes a kind of display device, as shown in figure 3, the display device includes that display panel and driving are single
Member, display of the driving unit to drive display panel, driving unit include shift scratch circuit 110, the shift scratch circuit
110 specific structure is referring to above-described embodiment, since this display device uses whole technical solutions of above-mentioned all embodiments,
Therefore at least there are all beneficial effects brought by the technical solution of above-described embodiment, this is no longer going to repeat them.Wherein, it moves
Position buffering circuit is grid drive integrated circult in array substrate, to reduce material cost and process costs.
The above description is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all at this
Under the inventive concept of invention, using equivalent structure transformation made by description of the invention and accompanying drawing content, or directly/use indirectly
It is included in other related technical areas in scope of patent protection of the invention.
Claims (10)
1. a kind of shift scratch circuit, which is characterized in that the shift scratch circuit includes that the stages shift of cascade setting is temporary
Unit, the displacement temporary storage unit include charging module, output module, reseting module and Voltage stabilizing module, wherein the pressure stabilizing mould
Block includes:
The first end of first pressure stabilizing submodule, the first pressure stabilizing submodule is electrically connected with low frequency voltage regulation signal source, and described first
The second end of pressure stabilizing submodule is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the first pressure stabilizing submodule
Third end be electrically connected with the pull-up of the same level displacement temporary storage unit point, the 4th end of the first pressure stabilizing submodule and low level are believed
The electrical connection of number source, when the low frequency voltage regulation signal that low frequency voltage regulation signal source generates is in high level, the first pressure stabilizing submodule
Block is connected to the pull-up point, the scanning signal output end and the low level signal source, with eliminate the pull-up point with it is described
The timing noise of scanning signal output end；
The first end of second pressure stabilizing submodule, the second pressure stabilizing submodule is electrically connected with high frequency voltage regulation signal source, and described second
The second end of pressure stabilizing submodule is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the second pressure stabilizing submodule
Third end be electrically connected with the pull-up of the same level displacement temporary storage unit point, the 4th end of the second pressure stabilizing submodule and the low electricity
Flat signal source electrical connection, when the high frequency voltage regulation signal that high frequency voltage regulation signal source generates is in high level, second pressure stabilizing
Submodule is connected to the pull-up point, the scanning signal output end and the low level signal source, with eliminate the pull-up point with
The timing noise of the scanning signal output end.
2. shift scratch circuit as described in claim 1, which is characterized in that the first pressure stabilizing submodule includes:
The grid of first switch device, the first switch device is electrically connected with low frequency voltage regulation signal source, and described first opens
Close device drain electrode be electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the source electrode of the first switch device and
The low level signal source electrical connection；
The grid of second switch device, the second switch device is electrically connected with low frequency voltage regulation signal source, and described second opens
The drain electrode for closing device is electrically connected with the pull-up of the same level displacement temporary storage unit point, the source electrode of the second switch device and the low electricity
Flat signal source electrical connection.
3. shift scratch circuit as described in claim 1, which is characterized in that high frequency voltage regulation signal source is previous stage clock
Signal source；
The second pressure stabilizing submodule includes:
Third switching device, the grid of the third switching device are electrically connected with the previous stage signal source of clock, the third
The drain electrode of switching device is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, the source electrode of the third switching device
It is electrically connected with the low level signal source；
The grid of 4th switching device, the 4th switching device is electrically connected with the previous stage signal source of clock, and the described 4th
The drain electrode of switching device is electrically connected with the pull-up of the same level displacement temporary storage unit point, the source electrode of the 4th switching device with it is described low
The electrical connection of level signal source.
4. shift scratch circuit as described in claim 1, which is characterized in that the displacement temporary storage unit further includes the 5th switch
The grid of device, the 5th switching device is electrically connected with the pull-up of the same level displacement temporary storage unit point, the 5th switching device
Drain electrode be electrically connected with high frequency voltage regulation signal source, source electrode and the low level signal source of the 5th switching device are electrically connected
It connects.
5. shift scratch circuit as described in claim 1, which is characterized in that low frequency voltage regulation signal source includes:
6th switching device, the grid of the 6th switching device and drain electrode are electrically connected with low-frequency clock signal source；
The grid of 7th switching device, the 7th switching device is electrically connected with the source electrode of the 6th switching device, and described
The drain electrode of seven switching devices is electrically connected with the drain electrode of the 6th switching device, the source electrode of the 7th switching device and described the
The first end of one pressure stabilizing submodule is electrically connected；
The grid of 8th switching device, the 8th switching device is electrically connected with the pull-up of previous stage displacement temporary storage unit point, institute
The drain electrode for stating the 8th switching device is electrically connected with the source electrode of the 7th switching device, the source electrode of the 8th switching device and institute
State the electrical connection of low level signal source；
The grid of 9th switching device, the 9th switching device is electrically connected with the pull-up of previous stage displacement temporary storage unit point, institute
The drain electrode for stating the 9th switching device is electrically connected with the grid of the 7th switching device, the source electrode of the 9th switching device and institute
State the electrical connection of low level signal source；
The grid of tenth switching device, the tenth switching device is electrically connected with the pull-up of the same level displacement temporary storage unit point, described
The drain electrode of tenth switching device is electrically connected with the source electrode of the 7th switching device, the source electrode of the tenth switching device with it is described
The electrical connection of low level signal source；
The grid of 11st switching device, the 11st switching device is electrically connected with the pull-up of the same level displacement temporary storage unit point,
The drain electrode of 11st switching device is electrically connected with the grid of the 7th switching device, the source of the 11st switching device
Pole is electrically connected with the low level signal source.
6. shift scratch circuit as described in claim 1, which is characterized in that the charging module includes the 12nd derailing switch
The grid of part, the 12nd switching device is electrically connected with the feedback signal output of preceding shift temporary storage location, and the described tenth
The drain electrode of two switching devices is electrically connected with the grid of the 12nd switching device or high level signal source, the 12nd switch
The source electrode of device is electrically connected with the pull-up of the same level displacement temporary storage unit point.
7. shift scratch circuit as described in claim 1, which is characterized in that the output module includes the 13rd derailing switch
The grid of part, the 13rd switching device is electrically connected with the pull-up of the same level displacement temporary storage unit point, the 13rd derailing switch
The drain electrode of part is electrically connected with the same level signal source of clock, the 13rd source electrode of switching device and sweeping for the same level displacement temporary storage unit
Retouch signal output end electrical connection.
8. shift scratch circuit as claimed in claim 7, which is characterized in that the output module further includes the 14th derailing switch
The grid of part, the 14th switching device is electrically connected with the pull-up of the same level displacement temporary storage unit point, the 14th derailing switch
The drain electrode of part is electrically connected with the same level signal source of clock, and the source electrode of the 14th switching device is anti-with the same level displacement temporary storage unit
The electrical connection of feedback signal output end.
9. shift scratch circuit as described in claim 1, which is characterized in that the reseting module includes:
The grid of 15th switching device, the 15th switching device is electrically connected with the drop-down point of the same level displacement temporary storage unit,
The drain electrode of 15th switching device is electrically connected with the scanning signal output end of the same level displacement temporary storage unit, and the described 15th opens
The source electrode for closing device is electrically connected with the low level signal source；
Sixteenmo closes device, and the grid that the sixteenmo closes device is electrically connected with the drop-down point of the same level displacement temporary storage unit,
The drain electrode that the sixteenmo closes device is electrically connected with the pull-up of the same level displacement temporary storage unit point, and the sixteenmo closes device
Source electrode is electrically connected with the low level signal source；
Wherein, the drop-down point of the same level displacement temporary storage unit is electrically connected with the feedback signal output of rear class displacement temporary storage unit.
10. a kind of display device, which is characterized in that the display device includes:
Display panel；And
Driving unit, the driving unit include shift scratch circuit as claimed in any one of claims 1-9 wherein, the shifting
Position buffering circuit is grid drive integrated circult in array substrate.
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| TWI695362B (en) * | 2019-01-14 | 2020-06-01 | 友達光電股份有限公司 | Light-emitting control circuit |
| CN110853571B (en) * | 2019-01-14 | 2021-12-07 | 友达光电股份有限公司 | Light emission control circuit |
| CN113948049A (en) * | 2021-09-28 | 2022-01-18 | 惠科股份有限公司 | Drive circuit, array substrate and display panel |
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