CN107146590A - The driving method of GOA circuits - Google Patents
The driving method of GOA circuits Download PDFInfo
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- CN107146590A CN107146590A CN201710545503.0A CN201710545503A CN107146590A CN 107146590 A CN107146590 A CN 107146590A CN 201710545503 A CN201710545503 A CN 201710545503A CN 107146590 A CN107146590 A CN 107146590A
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- drop
- liquid crystal
- crystal display
- controlling switch
- maintenance module
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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
- G09G3/3674—Details of drivers for scan electrodes
Abstract
The invention discloses a kind of driving method of GOA circuits.This method is in the postboost preset time of liquid crystal display device, by controlling the signal output part of each GOA unit of GOA circuits to export high potential, so that all pixels switch is all turned in liquid crystal display device.Specifically, high potential is inputted by the control GOA unit first input for pulling down maintenance module, so that the signal output part of the second input direct-current low-voltage and GOA unit is connected, while controlling the second input direct-current low-voltage to be upgraded to high potential, to control the signal output part of GOA unit to export high potential.The signal output part output high potential of GOA unit, all pixels switch in liquid crystal display device can all be turned on, so that the electric charge of storage on the pixel electrode carries out release neutralization by pixel switch, to realize the function of " ghost " of disappearing, with improve user usage experience and client to the satisfaction of product.
Description
Technical field
The present invention relates to the driving side of technical field of liquid crystal display, more particularly to a kind of GOA circuits for liquid crystal display
Method.
Background technology
GOA (array base palte row turntable driving) circuit is used to the grid impulse that LCDs produces driving scan line
Circuit.With the development of flat panel display, high-resolution, high-contrast, high refresh rate, narrow frame, slimming turn into
The development trend of flat display field.And GOA technologies can reduce the external IC of liquid crystal display panel binding (bonding) work
Sequence, makes liquid crystal display panel be more suitable for the display product for making narrow frame or Rimless.With the narrow frame, slim of liquid crystal panel
Change with inexpensive development, GOA exploitation and using relative maturity.
However, existing liquid crystal display device occurs " ghost " on shutdown moment, liquid crystal display panel.Specifically,
Shut down moment in liquid crystal display device, because the grid of pixel switch thin film transistor (TFT) (TFT) is at low potential, pixel switch
In closed mode, thus be stored in the electric charge in pixel capacitance liquid crystal display device shutdown after will slow release.In this section
In time, the picture of residual just occurs on panel, that is, is formed so-called " ghost ".
Therefore, a kind of method for " ghost " that can eliminate liquid crystal display device shutdown moment generation is needed badly.
The content of the invention
The technical problems to be solved by the invention are existing liquid crystal display devices on shutdown moment, liquid crystal display panel
" ghost " occurs, is unfavorable for the usage experience of user, so as to reduce the product customer satisfaction of client.
In order to solve the above-mentioned technical problem, the invention provides a kind of driving method of GOA circuits, it is included in liquid crystal display
In the postboost preset time of device, the signal output part of each GOA unit of GOA circuits is controlled to export high potential, so that
All pixels switch is all turned in the liquid crystal display device.
It is preferred that, the GOA unit includes structure identical first and pulls down maintenance module and the second drop-down maintenance module, institute
Stating the first drop-down maintenance module and the second drop-down maintenance module includes being used to connect the second input direct-current low-voltage respectively
With the first controlling switch of the signal output part；
In the postboost preset time of liquid crystal display device, the signal output part of each GOA unit of GOA circuits is controlled
High potential is all exported, so that all pixels switch is all turned in the liquid crystal display device, including：
In the postboost preset time of liquid crystal display device, the second input direct-current low-voltage is controlled to be upgraded to high electricity
Position, and control the first control of the first controlling switch and/or the second drop-down maintenance module of the first drop-down maintenance module
Switch conduction processed, so that the signal output part of each GOA unit of the GOA circuits exports high potential, so that the liquid
All pixels switch is all turned in crystal device.
It is preferred that, the GOA unit also includes pull-up module, the first drop-down maintenance module and the second drop-down dimension
Hold the second control that module also includes being used to connect the control end of the first input direct-current low-voltage and the pull-up module respectively
System switch；
Methods described also includes：
When liquid crystal display device shuts down, current potential on the basis of the first input direct-current low voltage drop is controlled, and pass through control
Second controlling switch of the second controlling switch and/or the second drop-down maintenance module of making the first drop-down maintenance module is led
It is logical, to make the control end of the pull-up module be reduced to the reference potential.
It is preferred that, first controlling switch and second controlling switch are synchronously turned on.
It is preferred that, in addition to：
When the input to the described first drop-down maintenance module inputs high potential, the first drop-down maintenance module is controlled
The first controlling switch and the second controlling switch conducting；
When the input to the described second drop-down maintenance module inputs high potential, the second drop-down maintenance module is controlled
The first controlling switch and the second controlling switch conducting.
It is preferred that, the first input direct-current low-voltage is less than the second input direct-current low-voltage.
It is preferred that, first controlling switch and second controlling switch are thin film transistor (TFT).
It is preferred that, the preset time is 100-1000 μm.
It is preferred that, when liquid crystal display device shuts down, control the clock signal and open signal of the GOA unit to be reduced to
Reference potential.
Compared with prior art, one or more of such scheme embodiment can have the following advantages that or beneficial effect
Really：
The driving method of GOA circuits provided in an embodiment of the present invention, within liquid crystal display device postboost certain time,
High potential is exported by the signal output part for each GOA unit for controlling GOA circuits, so that all in liquid crystal display device
Pixel switch is all turned on, so that the electric charge of storage on the pixel electrode carries out release neutralization by pixel switch, is disappeared to realize
The function of " ghost ".It can be seen that, the embodiment of the present invention can improve user usage experience and client to the satisfaction of product.
Other features and advantages of the present invention will be illustrated in the following description, and partly becomes from specification
It is clear that or being understood by implementing the present invention.The purpose of the present invention and other advantages can be by wanting in specification, right
Structure specifically noted in book and accompanying drawing is asked to realize and obtain.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention
Apply example to be provided commonly for explaining the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 shows the schematic flow sheet of the driving method of the GOA circuits of the embodiment of the present invention one；
Fig. 2 shows the circuit structure diagram of a GOA unit in the GOA circuits of the embodiment of the present invention one；
Fig. 3 shows GOA circuits in the embodiment of the present invention two from open state to off-mode input signal and output
The time diagram of the change of signal；
Fig. 4 shows that the first drop-down maintenance module and second in embodiment two pulls down maintenance module from open state to pass
The time diagram of machine state output terminal input signal change.
Embodiment
Describe embodiments of the present invention in detail below with reference to drawings and Examples, how the present invention is applied whereby
Technological means solves technical problem, and reaches the implementation process of technique effect and can fully understand and implement according to this.Need explanation
As long as not constituting each embodiment in conflict, the present invention and each feature in each embodiment can be combined with each other,
The technical scheme formed is within protection scope of the present invention.
Existing liquid crystal display device is in shutdown, input clock signal, open signal and the input of GOA drive circuits
DC low-voltage etc. can be reduced to the signal output part output low potential of reference voltage, i.e. GOA drive circuits, therefore be driven with GOA
The gate line of the output end connection of dynamic circuit is also at low potential.Due to the pixel switch thin film transistor (TFT) by grid line traffic control
(TFT) be closed, thus be stored in the electric charge in pixel capacitance liquid crystal display device shutdown after will slow release.
The picture of residual just occurs on electric charge deenergized period, liquid crystal display panel, that is, is formed so-called " ghost ".Liquid crystal display is filled
The usage experience of user can be influenceed by putting " ghost " occurred during shutdown, so as to influence user to the satisfaction of product.
Embodiment one
To solve the above-mentioned technical problem that prior art is present, the embodiments of the invention provide a kind of driving of GOA circuits
Method.
Fig. 1 shows the schematic flow sheet of the driving method of the GOA circuits of the embodiment of the present invention one.
Fig. 2 shows the circuit structure diagram of a GOA unit in the GOA circuits of the embodiment of the present invention one.
Referring to Figures 1 and 2, GOA circuits include multiple GOA units of cascade.Each GOA unit includes pull-up control mould
Block 100, pull-up module 200, the drop-down drop-down drop-down maintenance module 500 of maintenance module 400 and second of module 300, first.Due to i.e.
The structure and control mode all same of each GOA unit, therefore for the ease of the defeated of each GOA unit to controlling GOA circuits
Go out end output high potential to be described in detail, in following steps S1-S3 specific descriptions, only to control a GOA unit
Output end output high potential exemplified by illustrate.It is worth noting that the output end of other GOA units of control GOA circuits is defeated
The control mode for going out high potential is same.
The driving method of the present embodiment GOA circuits includes step S1 to step S3.
In step sl, in the preset time that liquid crystal display device shuts down, each GOA unit of GOA circuits is controlled
Signal output part G (N) exports high potential, so that all pixels switch is all turned in liquid crystal display device.
Specifically, in the preset time that liquid crystal display device shuts down, the first drop-down maintenance module of control GOA unit
400 input input high potential, so that the second input direct-current low-voltage VSS2 and the signal output part G (N) of GOA unit connect
It is logical, while controlling the second input direct-current low-voltage VSS2 to be upgraded to high potential, to control the signal output part G (N) of GOA unit to export
High potential.So, all pixels switch is all turned in liquid crystal display device, and the electric charge of storage on the pixel electrode can pass through picture
Element switch carries out release neutralization, so as to realize the function of elimination " ghost ".
Preferably, preset time is 100 μm.Here, the setting of preset time ensures that pixel electrode can be sufficiently to residual
The electric charge stayed is discharged, so that " ghost " problem that liquid crystal display device occurs after shut down is completely eliminated.Preferably, GOA is mono-
The high potential of first output end output is 28V.
Further, the first drop-down maintenance module 400 includes the first controlling switch T32.First controlling switch T32 distinguishes
It is connected with the signal output part G (N) of the second input direct-current low-voltage VSS2 and GOA unit.In the pre- of liquid crystal display device shutdown
If in the time, the first controlling switch T32 for pulling down maintenance module 400 by control first is turned on, to make the second input direct-current low
Voltage VSS2 is turned on GOA unit signal output part.Simultaneously by controlling the second input direct-current low-voltage VSS2 to be upgraded to high potential,
To make GOA unit signal output part G (N) export high potential.Preferably, the first controlling switch of the first drop-down maintenance module 400
T32 conducting, is that the input LC1 for pulling down maintenance module 400 by control first inputs high potential to control.Preferably,
First controlling switch T32 is thin film transistor (TFT).
In step s 2, when liquid crystal display device shuts down, the first input direct-current of the GOA unit in control GOA circuits
Low-voltage VSS1 is reduced to reference potential.
Specifically, the first drop-down holding circuit 400 also includes the second controlling switch T42.Second controlling switch T42 respectively with
First input direct-current low-voltage VSS1 and pull-up module 200 control end Q (N) connections.When liquid crystal display device shuts down, pass through
Control first pulls down the second controlling switch T42 conductings of maintenance module 400, to make the first input direct-current low-voltage VSS1 and pull-up
Control end Q (N) conductings of module 200.Because the first input direct-current low-voltage VSS1 of control is reduced to reference potential, therefore upper drawing-die
The control end Q (N) of block 200 is also reduced to reference potential.Preferably, the second controlling switch T42 of the first drop-down maintenance module 400
Conducting is to input high potential to realize by the input of the first drop-down maintenance module 400.Tieed up by the drop-down of control first
The input input high potential of module 400 is held, the first controlling switch T32 and second of the first drop-down maintenance module 400 can be made
Controlling switch T42 is synchronously turned on.Preferably, the second controlling switch T42 is thin film transistor (TFT).It is highly preferred that the first input direct-current
Low-voltage is less than the second input direct-current low-voltage.The purpose of such a setting is the electric leakage minimum for causing pull-up module 200, so that
The output end Q (N) of pull-up module 200 voltage is set more to stablize.
Further, if as shown in Fig. 2 control end Q (N) the input high potentials of pull-up module 200, pull up module
200 controlling switch T21 is to be switched on.Now, the signal output part G (N) and the clock signal clk of GOA unit of GOA unit are led
Logical, i.e., the signal output part G (N) of GOA unit output signal can be influenceed by the current potential of clock signal clk.If clock signal clk
For low potential, then the signal output part G (N) of GOA unit exports low potential, so that can not realize makes to own in liquid crystal display device
Pixel switch is all turned on, and makes the electric charge of storage on the pixel electrode carry out release neutralization by pixel switch and then realize to eliminate
The function of " ghost ".Therefore, when liquid crystal display device shuts down, it is necessary to control first in the GOA unit in GOA circuits to input
DC low-voltage VSS1 is reduced to reference potential, and by controlling the second controlling switch T42 conducting to make the control of pull-up module 200
End Q (N) processed is reduced to reference potential.So as to avoid pull-up module 200 and clock signal clk defeated to the output end G (N) of GOA unit
Go out the influence of high potential.
In step s3, when liquid crystal display device shuts down, control GOA circuits in GOA unit clock signal clk and
Open signal STV is reduced to reference potential.
Specifically, open signal STV be GOA circuits in first GOA unit initial open signal.As shown in Fig. 2
When the current potential that the G (N-2) of first GOA unit and ST (N-2) place are inputted is high potential, the pull-up of first GOA unit
The control end Q (N) of module 200 is high potential, then pull up module 200 controlling switch T21 conducting, make clock signal clk with
Signal output part G (N) conducting state of the GOA unit.And now current potential on the basis of clock signal clk, i.e., in low potential.
Therefore the signal output part G (N) of GOA unit exports low potential, so that can not realize opens all pixels in liquid crystal display device
Pass all turns on, makes the electric charge of storage on the pixel electrode carry out release neutralization by pixel switch and then realize to eliminate " ghost "
Function.In summary, the clock signal clk of GOA unit and open signal STV are reduced to reference potential, so that clock signal
CLK and open signal STV do not produce influence to the signal output part output high potential for controlling GOA unit.
Using the present embodiment, under the second input direct-current low-voltage and first of each GOA unit by controlling GOA circuits
The input input high potential of maintenance module is drawn, to cause the signal output part G (N) of GOA unit to export high potential.Same time control
The first input direct-current low-voltage, clock signal clk and the open signal STV for making each GOA unit are reduced to reference potential respectively, from
And high potential can be exported by ensureing the signal output part G (N) of GOA unit.So that all pixels are switched in liquid crystal display device
All turn on, the electric charge of storage on the pixel electrode can carry out release neutralization by pixel switch, realize the work(for eliminating " ghost "
Energy.
Wherein, control first pulls down the input input high potential of maintenance module 400, that is, controls first to pull down maintenance module
400 the first controlling switch T32 conducting, then the second input direct-current low-voltage VSS2 and signal output part G (N) of GOA unit it
Between turn on, the second input direct-current low-voltage VSS2 sends high potential thereon to the signal output part G (N) of GOA unit so that
So that signal output part G (N) the output high potentials of GOA unit.Control first pulls down the high electricity of input input of maintenance module 400
Position, while also turn on the second controlling switch T42 of the first drop-down maintenance module 400, now, the first input direct-current low-voltage
Turned between VSS1 and the control end Q (N) for pulling up module 200, so that the control end Q (N) of pull-up module 200 is in low electricity
Position, that is, the controlling switch T21 for pulling up module 200 is not turned on.Due to after liquid crystal display device shuts down, clock signal clk and
Open signal STV is reduced to reference potential, it can thus be avoided clock signal is exported to the signal output part G (N) of GOA unit
The influence of high potential.
Embodiment two
The present embodiment and the difference of embodiment one are：The second drop-down drop-down of maintenance module 500 and first maintains mould
Block 400 has identical structure and connected mode, and the second drop-down maintenance module 500 is carried out and the first drop-down maintenance module
400 identicals are controlled.When GOA unit works, the second drop-down maintenance module 500 is used to hand over the first drop-down maintenance module 400
Temporary substitute is made.
Based on the reason for identical with embodiment one, high electricity is exported for the ease of output end that GOA unit is controlled GOA circuits
Position is described in detail, herein exemplified by controlling the output end output high potential of a GOA unit.
In step sl, in the preset time that liquid crystal display device shuts down, each GOA unit of GOA circuits is controlled
Signal output part G (N) exports high potential, so that all pixels switch is all turned in liquid crystal display device.
Specifically, in the preset time that liquid crystal display device shuts down, the second input direct-current low-voltage of GOA unit is controlled
VSS2 is upgraded to high potential, and controls the first high electricity of input input for pulling down the drop-down maintenance module 500 of maintenance module 400 and second
Position, i.e. the first controlling switch T42 and the second controlling switch T43 are simultaneously turned on, make it that the second input direct-current low-voltage VSS2 can
To be turned on by the first controlling switch T42 and the second controlling switch T43 and signal output part G (N) of GOA unit simultaneously, so that
The signal output part G (N) of GOA unit can export high potential.All pixels switch can be led so in liquid crystal display device
Logical, the electric charge of storage on the pixel electrode can carry out release neutralization by pixel switch, so as to realize the work(of elimination " ghost "
Energy.Preferably, preset time is 1000 μm.Here, the setting of preset time ensures that pixel electrode can sufficiently discharge residual
Electric charge, so that " ghost " problem that liquid crystal display device occurs after shut down is completely eliminated.
In step s 2, when liquid crystal display device shuts down, the first input direct-current of the GOA unit in control GOA circuits
Low-voltage VSS1 is reduced to reference potential.
Specifically, shut down moment in liquid crystal display device, the second control of maintenance module 400 is pulled down by control first simultaneously
Second controlling switch T63 of the system drop-down maintenance modules 500 of switch T53 and second is respectively turned on so that the low electricity of the first input direct-current
Pressure VSS1 can be connected by the second controlling switch T53 and the second controlling switch T63 with the control end Q (N) of pull-up module 200,
Therefore the control end Q (N) of pull-up module 200 is reduced to reference potential.
Preferably, the of the drop-down maintenance modules 500 of the second controlling switch T53 and second of the first drop-down maintenance module 400
Two controlling switch T63 conducting inputs high potential to realize by the input of the first drop-down maintenance module 400.
Using the present embodiment, in the preset time that liquid crystal display device shuts down, by each GOA for controlling GOA circuits
Second input direct-current low-voltage VSS2 of unit, the first drop-down drop-down module 500 of maintenance module 400 and second input input
High potential, to cause the signal output part G (N) of GOA unit to export high potential.The first defeated of each GOA unit is controlled simultaneously
Enter DC low-voltage VSS1, clock signal clk and open signal STV and be reduced to reference potential respectively, so as to ensure the letter of GOA unit
Number output end G (N) can export high potential.So that all pixels switch is all turned in liquid crystal display device, pixel is stored in
Electric charge on electrode can carry out release neutralization by pixel switch, realize the function of eliminating " ghost ".Embodiment adds
Control to the second drop-down maintenance module, to avoid, when the first drop-down maintenance module goes wrong, the letter of GOA unit not being influenceed
Number output end G (N) can export high potential.
Wherein, Fig. 3 shows GOA circuits open state in the embodiment of the present invention two to off-mode input signal and defeated
Go out the time diagram of the change of signal；Fig. 4 shows the first drop-down maintenance module and the second drop-down maintenance in embodiment two
Time diagram of the module open state to the change of off-mode input signal.
Reference picture 3 and Fig. 4 are understood, after liquid crystal display device shutdown, and the clock signal clk of GOA circuits, the first input are straight
Stream low-voltage VSS1 and open signal STV is changed into reference voltage, and the second input direct-current low-voltage VSS2, the first drop-down maintain mould
The input signal LC2 of the drop-down maintenance modules 500 of the input signal LC1 of block 400 and second is upgraded to high potential.When pixel electrode pair
Electric charge is carried out after fully discharging, i.e., after above-mentioned maintenance a period of time, and the second input direct-current low-voltage VSS2, the first drop-down maintain mould
The input signal LC2 of the drop-down maintenance modules 500 of the input signal LC1 of block 400 and second is reduced to reference voltage, so that GOA
The signal output part of unit is accordingly also reduced to reference voltage.
Those skilled in the art should be understood that above-mentioned each module of the invention or each step can use general calculating
Device realizes that they can be concentrated on single computing device, or be distributed in the network that multiple computing devices are constituted
On, alternatively, they can be realized with the executable program code of computing device, it is thus possible to be stored in storage
Performed in device by computing device, they are either fabricated to each integrated circuit modules respectively or will be many in them
Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention be not restricted to any specific hardware and
Software is combined.
While it is disclosed that embodiment as above, but described content is only to facilitate understanding the present invention and adopting
Embodiment, is not limited to the present invention.Any those skilled in the art to which this invention pertains, are not departing from this
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But protection scope of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (9)
1. a kind of driving method of GOA circuits, it is characterised in that including：
In the postboost preset time of liquid crystal display device, control the signal output part of each GOA unit of GOA circuits defeated
Go out high potential, so that all pixels switch is all turned in the liquid crystal display device.
2. according to the method described in claim 1, it is characterised in that the GOA unit includes structure identical first and pulls down dimension
Module and the second drop-down maintenance module are held, the first drop-down maintenance module and the second drop-down maintenance module include being used for
The second input direct-current low-voltage and the first controlling switch of the signal output part are connected respectively；
In the postboost preset time of liquid crystal display device, control the signal output part of each GOA unit of GOA circuits defeated
Go out high potential, so that all pixels switch is all turned in the liquid crystal display device, including：
In the postboost preset time of liquid crystal display device, the second input direct-current low-voltage is controlled to be upgraded to high potential, and
Control the first controlling switch of the first drop-down maintenance module and/or the first controlling switch of the second drop-down maintenance module
Conducting, so that the signal output part of each GOA unit of the GOA circuits exports high potential, so that the liquid crystal display
All pixels switch is all turned in device.
3. method according to claim 2, it is characterised in that the GOA unit is also included under pull-up module, described first
Maintenance module and the second drop-down maintenance module is drawn also to include being used to connect the first input direct-current low-voltage and institute respectively
State the second controlling switch of the control end of pull-up module；
Methods described also includes：
When liquid crystal display device shuts down, current potential on the basis of the first input direct-current low voltage drop is controlled, and by controlling
The second controlling switch conducting of the second controlling switch and/or the second drop-down maintenance module of the first drop-down maintenance module is stated,
To make the control end of the pull-up module be reduced to the reference potential.
4. method according to claim 3, it is characterised in that first controlling switch and second controlling switch are same
Step conducting.
5. method according to claim 4, it is characterised in that also include：
When the input to the described first drop-down maintenance module inputs high potential, the of the first drop-down maintenance module is controlled
One controlling switch and the conducting of the second controlling switch；
When the input to the described second drop-down maintenance module inputs high potential, the of the second drop-down maintenance module is controlled
One controlling switch and the conducting of the second controlling switch.
6. method according to claim 3, it is characterised in that the first input direct-current low-voltage is defeated less than described second
Enter DC low-voltage.
7. method according to claim 3, it is characterised in that first controlling switch and second controlling switch are equal
For thin film transistor (TFT).
8. according to the method described in claim 1, it is characterised in that the preset time is 100-1000 μm.
9. according to the method described in claim 1, it is characterised in that also include：
When liquid crystal display device shuts down, the clock signal and open signal of the GOA unit is controlled to be reduced to reference potential.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799087A (en) * | 2017-11-24 | 2018-03-13 | 深圳市华星光电技术有限公司 | A kind of GOA circuits and display device |
| CN108962178A (en) * | 2018-09-03 | 2018-12-07 | 深圳市华星光电技术有限公司 | GOA circuit and liquid crystal display panel |
| WO2019095429A1 (en) * | 2017-11-17 | 2019-05-23 | 武汉华星光电技术有限公司 | Goa circuit |
| CN109935191A (en) * | 2019-04-10 | 2019-06-25 | 深圳市华星光电技术有限公司 | GOA circuit and display panel |
| CN110120201A (en) * | 2018-02-07 | 2019-08-13 | 京东方科技集团股份有限公司 | Eliminate circuit, its control method and the liquid crystal display device of power-off ghost shadow |
| CN110400546A (en) * | 2018-04-24 | 2019-11-01 | 夏普株式会社 | Display device and its driving method |
| CN112185314A (en) * | 2020-10-19 | 2021-01-05 | Tcl华星光电技术有限公司 | Voltage conversion circuit and display device |
| CN113593460A (en) * | 2021-07-19 | 2021-11-02 | Tcl华星光电技术有限公司 | GOA circuit |
| CN115831031A (en) * | 2023-02-07 | 2023-03-21 | 深圳市微源半导体股份有限公司 | Level conversion circuit, display panel and display device |
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| WO2020048081A1 (en) * | 2018-09-03 | 2020-03-12 | 深圳市华星光电技术有限公司 | Goa circuit and liquid crystal panel |
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| CN115831031A (en) * | 2023-02-07 | 2023-03-21 | 深圳市微源半导体股份有限公司 | Level conversion circuit, display panel and display device |
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