CN108962174A - Eliminate circuit, its driving method and display panel, display device that shutdown flashes white - Google Patents
Eliminate circuit, its driving method and display panel, display device that shutdown flashes white Download PDFInfo
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- CN108962174A CN108962174A CN201810871199.3A CN201810871199A CN108962174A CN 108962174 A CN108962174 A CN 108962174A CN 201810871199 A CN201810871199 A CN 201810871199A CN 108962174 A CN108962174 A CN 108962174A
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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
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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Abstract
The invention discloses a kind of circuit, its driving method and display panels, display device eliminating shutdown and flashing white, which includes: detecting module, comparison module and drive module；Since the circuit can be in shutdown process, half value analog voltage signal line is connected with data signal line, so that the half value analog voltage signal on half value analog voltage signal line is identical as the power down trend of the data-signal on data signal line, and in the prior art, half value analog voltage signal is close with the power down trend of public voltage signal, therefore half value analog voltage signal can be made using circuit of the invention, the power down trend of data-signal and public voltage signal three are essentially identical, and then no longer there is pressure difference caused by data-signal and public voltage signal in liquid crystal molecule both ends, the phenomenon that flashes white when effectively eliminating shutdown.
Description
Technical field
The present invention relates to field of display technology more particularly to a kind of circuit that elimination shutdown flashes white, its driving method and show
Show panel, display device.
Background technique
Liquid crystal display panel (Liquid Crystal Display, LCD) have it is light-weight, thickness is thin, it is low in energy consumption, be easy to
Driving is free of the advantages that harm ray, has been widely used in TV, laptop, mobile phone, personal digital assistant etc.
Present information equipment, there is vast potential for future development.And in large size and superelevation Qinghua of liquid crystal display panel is display skill
One important development direction of art.
Advanced super Wei Chang (Advanced Super Dimension Switch, ADS) liquid crystal display panel is a kind of size
Greatly and there is liquid crystal display panel high-definition.However, the phenomenon that ADS liquid crystal display panel flashes white in the presence of shutdown at present.Tool
Body reason are as follows: in shutdown process, the power down trend of half value analog voltage signal and public voltage signal is close, but data-signal
Power down speed be significantly faster than that half value analog voltage signal and public voltage signal, causing liquid crystal molecule both ends, there are data-signals
With larger pressure difference caused by public voltage signal, and the duration is longer, and human eye will observe that display panel dodges white picture
Face.
Summary of the invention
Circuit, its driving method and display panel, the display dress that shutdown flashes white are eliminated the embodiment of the invention provides a kind of
It sets, with to avoid occurring the phenomenon that flashes white in shutdown process.
The embodiment of the invention provides a kind of circuits eliminating shutdown and flashing white, comprising: detecting module, comparison module and driving
Module；
Wherein, the detecting module is respectively connected with digital voltage signal end, first node, for according to the number electricity
The digital voltage signal of pressure signal end determines the voltage of the first node；
The comparison module is respectively connected with the first node, reference signal end, second node, for described in the determination
When the reference signal at reference signal end is greater than or equal to the voltage of the first node, second section is written into the first signal
Point；
The drive module is respectively connected with the second node, half value analog voltage signal line, data signal line, is used for
In shutdown process, by the half value analog voltage signal line and the number under the control of the first signal of the second node
It is connected according to signal wire.
In one possible implementation, in the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white,
The comparison module is also used to when the reference signal for determining the reference signal end is less than the voltage of the first node, by the
The second node is written in binary signal；
The drive module is also used to during display, will be described under the control of the second signal of the second node
Half value analog voltage signal line and the data signal line disconnect.
In one possible implementation, in the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white,
The detecting module includes: first resistor and second resistance；
Wherein, one end of the first resistor is connected with the digital voltage signal end, the other end and the first node
It is connected；
One end of the second resistance is connected with the first node, other end ground connection.
In one possible implementation, in the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white,
The comparison module includes: voltage comparator and amplifier；
Wherein, the normal phase input end of the voltage comparator is connected with the first node, inverting input terminal and the ginseng
It examines signal end to be connected, output end is connected with the control terminal of the amplifier, and the input terminal of the amplifier is through the second node
It is connected with power end, output end ground connection.
In one possible implementation, in the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white,
The amplifier includes 3rd resistor, triode and the 4th resistance；
Wherein, the base stage of the triode is connected through the 3rd resistor with the output end of the voltage comparator, current collection
Pole is connected with the second node, emitter ground connection；
One end of 4th resistance is connected with the second node, and the other end is connected with the power end.
In one possible implementation, in the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white,
The drive module includes multiple sequentially connected switching transistors, and the quantity of the switching transistor and the data-signal
The quantity of line is identical；
The grid of each switching transistor is connected with the second node；
First pole of first switching transistor is connected with the half value analog voltage signal line, described in the last one
Second pole of switching transistor is connected with the data signal line；
Except first switching transistor the first pole and the last one switching transistor the second pole it
Outside, the second of the first of each switching transistor the switching transistor extremely adjacent thereto extremely counts with described in same
It is connected according to signal wire.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display panels, including above-mentioned elimination shutdown to dodge
White circuit.
In one possible implementation, in above-mentioned display panel provided in an embodiment of the present invention, including timing control
Making sheet and source data driving chip；The detecting module for eliminating the circuit that shutdown flashes white and comparison module are located at the timing control
In making sheet, the drive module is located on the source data driving chip.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including above-mentioned display panel.
Correspondingly, the embodiment of the invention also provides a kind of driving methods of circuit that above-mentioned elimination shutdown flashes white, comprising:
Detecting module determines the voltage of first node according to the digital voltage signal at digital voltage signal end；
Comparison module is when the reference signal for determining reference signal end is greater than or equal to the voltage of the first node, by the
Second node is written in one signal；
Drive module believes half value analog voltage under the control of the first signal of the second node in shutdown process
Number line is connected with data signal line.
The beneficial effect of the embodiment of the present invention includes:
Circuit, its driving method and display panel, the display dress that shutdown flashes white are eliminated the embodiment of the invention provides a kind of
It sets, the circuit that elimination shutdown flashes white includes: detecting module, comparison module and drive module；Wherein, detecting module and number electricity
Pressure signal end, first node are respectively connected with, for determining first node according to the digital voltage signal at digital voltage signal end
Voltage；Comparison module is respectively connected with first node, reference signal end, second node, in the ginseng for determining reference signal end
When examining voltage of the signal more than or equal to first node, second node is written into the first signal；Drive module and second node, half
Value analog voltage signal line, data signal line are respectively connected with, and are used in shutdown process, in the control of the first signal of second node
Half value analog voltage signal line is connected with data signal line under system.
Since the circuit half value analog voltage signal line can be connected with data signal line in shutdown process, so that half
The half value analog voltage signal being worth on analog voltage signal line is identical as the power down trend of the data-signal on data signal line, and
In the prior art, half value analog voltage signal is close with the power down trend of public voltage signal, therefore uses technology of the invention
Scheme can make the power down trend of half value analog voltage signal, data-signal and public voltage signal three essentially identical, into
And no longer there is pressure difference caused by data-signal and public voltage signal in liquid crystal both ends, flashing white when effectively eliminating shutdown is existing
As.
Detailed description of the invention
Fig. 1 is the structural schematic diagram provided in an embodiment of the present invention for eliminating the circuit that shutdown flashes white；
Fig. 2 is the concrete structure schematic diagram that the circuit that shutdown flashes white is eliminated shown in Fig. 1 provided in an embodiment of the present invention；
Fig. 3 is the driving method flow chart provided in an embodiment of the present invention for eliminating the circuit that shutdown flashes white；
Fig. 4 is the working timing figure shown in Fig. 2 for eliminating the circuit that shutdown flashes white provided in an embodiment of the present invention.
Specific embodiment
With reference to the accompanying drawing, to circuit, its driving method and the display provided in an embodiment of the present invention eliminating shutdown and flashing white
Panel, display device specific embodiment be described in detail.It should be noted that this specification described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments；And in the absence of conflict, the reality in the application
The feature applied in example and embodiment can be combined with each other；In addition, based on the embodiments of the present invention, those of ordinary skill in the art
All other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
A kind of circuit eliminating shutdown and flashing white provided in an embodiment of the present invention, as shown in Figure 1, comprising: detecting module 101,
Comparison module 102 and drive module 103；
Wherein, detecting module 101 is respectively connected with digital voltage signal end DVDD, first node P1, for according to number
The digital voltage signal of voltage signal end DVDD determines the voltage of first node P1；
Comparison module 102 and first node P1, reference signal end VREF, second node P2 are respectively connected with, in determination
When the reference signal of reference signal end VREF is greater than or equal to the voltage of first node P1, second node is written into the first signal
P2；
Drive module 103 and second node P2, half value analog voltage signal HAVDD line, data signal line Data distinguish phase
Even, in shutdown process, under the control of the first signal of second node P2 by half value analog voltage signal HAVDD line with
Data signal line Data conducting；Wherein half value analog voltage signal HAVDD line is for exporting half value analog voltage signal, data letter
Number line Data is used for outputting data signals.
In the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white, due to may be implemented in pass using the circuit
During machine, half value analog voltage signal HAVDD line is connected with data signal line Data, so that half value analog voltage signal
Half value analog voltage signal and the power down trend of the data-signal on data signal line Data on HAVDD line is essentially identical, and
In the prior art, half value analog voltage signal is close with the power down trend of public voltage signal, therefore uses technology of the invention
Scheme can make the power down trend of half value analog voltage signal, data-signal and public voltage signal three essentially identical, into
And no longer there is pressure difference caused by data-signal and public voltage signal in liquid crystal both ends, flashing white when effectively eliminating shutdown is existing
As.
In addition, in the prior art, because biggish pressure difference (i.e. DC bias) is deposited between data-signal and common signal after shutdown
At liquid crystal molecule both ends, liquid crystal molecule polarization is easily led to for a long time, will appear flashing (Flicker) drift when booting display again
It is bad with image retention etc..The present invention can eliminate DC bias, thus effectively evaded booting display when occur Flicker drift with
Image retention etc. is bad.
Further, during in order to avoid display, half value analog voltage signal interference data signal is worked normally, at this
In the circuit that the above-mentioned elimination shutdown that inventive embodiments provide flashes white, comparison module 102 is also used to determining reference signal end
When the reference signal of VREF is less than the voltage of first node P1, second node P2 is written into second signal；
Drive module 103 is also used to during display, by half value mould under the control of the second signal of second node P2
Quasi- voltage signal HAVDD line and data signal line Data are disconnected.
In order to preferably understand the structure of circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white, below with one
A specifically embodiment is described in detail.
Specifically, in the circuit that above-mentioned elimination shutdown provided in an embodiment of the present invention flashes white, as shown in Fig. 2, detecting mould
Block 101 includes: first resistor R1 and second resistance R2；
Wherein, one end of first resistor R1 is connected with digital voltage signal end DVDD, and the other end is connected with first node P1；
One end of second resistance R2 is connected with first node P1, other end ground connection；
The voltage of first node P1 is DVDD*R2/ (R1+R2).
Comparison module 102 includes: voltage comparator A and amplifier；
Wherein, the normal phase input end of voltage comparator A is connected with first node P1, inverting input terminal and reference signal end
VREF is connected, and output end is connected with the control terminal of amplifier, and the input terminal of amplifier is through second node P2 and power end VDD phase
Even, output end ground connection.And amplifier includes 3rd resistor R3, triode Q and the 4th resistance R4；
Wherein, the base stage of triode Q is connected through 3rd resistor R3 with the output end of voltage comparator A, collector and second
Node P2 is connected, emitter ground connection；
One end of 4th resistance R4 is connected with second node P2, and the other end is connected with power end VDD.
Drive module 103 includes that multiple sequentially connected switching transistor M (show n switching transistor, divide in Fig. 2
Not Wei first switch transistor M1, second switch transistor M2 ..., the n-th switching transistor Mn), and the number of switching transistor M
Amount and data signal line Data (show n data signal wire Data, respectively the first data signal line Data_1, the in Fig. 2
Two data signal line Data_2 ..., the n-th data signal line Data_n) quantity it is identical；
The grid of each switching transistor M is connected with second node P2；
First pole of first switching transistor (first switch transistor M1 i.e. shown in Fig. 2) and half value analog voltage are believed
Number HAVDD line is connected, and the second pole of the last one switching transistor (the n-th switching transistor Mn i.e. shown in Fig. 2) and data are believed
Number line Data (the n-th data signal line Data_n i.e. shown in Fig. 2) is connected；
Except the first pole of first switching transistor (first switch transistor M1 i.e. shown in Fig. 2) and the last one switch
Except second pole of transistor (the n-th switching transistor Mn i.e. shown in Fig. 2), the first of each switching transistor is extremely adjacent thereto
Switching transistor second be extremely connected with same data signal line；Such as the first pole of first switch transistor M1 and the
The second of two switching transistor M2 is extremely connected with the first data signal line Data_1.
It should be noted that the above is only the specific structure for eliminating each module in the circuit that shutdown flashes white is illustrated, it is real
On border, the specific structure of each module is not limited to above structure provided in an embodiment of the present invention, can also be those skilled in the art
Known other structures.
In addition, each switching transistor mentioned in the above embodiment of the present invention can be thin film transistor (TFT) (TFT, Thin
Film Transistor), it is also possible to metal oxide semiconductor field effect tube (MOS, Metal Oxide
Semiconductor), it is not limited here；Also, these switching transistors are P-type transistor or N-type transistor.These
The first pole and the second pole of transistor are respectively source electrode and drain electrode, in practical applications, are believed according to transistor types and input
Number difference, the function of the first pole and the second pole can be interchanged, and not do specific differentiation.And, it is understood that in each switch
When transistor is N-type transistor, the first signal that comparison module 102 exports is high level signal, and second signal is low level letter
Number；When each switching transistor is P-type transistor, the first signal that comparison module 102 exports is low level signal, second signal
For high level signal.
Correspondingly, the circuit to flash white for above-mentioned elimination shutdown provided in an embodiment of the present invention, the present invention also provides one
Kind driving method.As shown in figure 3, the driving method can specifically include following steps:
S301, detecting module determine the voltage of first node according to the digital voltage signal at digital voltage signal end；
S302, comparison module, will when the reference signal for determining reference signal end is greater than or equal to the voltage of first node
Second node is written in first signal；
S303, drive module are in shutdown process, by half value analog voltage under the control of the first signal of second node
Signal wire is connected with data signal line.
Technical solution for a better understanding of the present invention, below to the tool shown in Fig. 2 for eliminating the circuit that shutdown flashes white
Body running principle is described in detail.Wherein, each switching transistor is N-type transistor, is connected under high level effect,
The lower cut-off of low level effect；First signal is high level signal, and second signal is low level signal.The corresponding working sequence of Fig. 2
Figure is as shown in Figure 4.
Start-up phase: digital voltage signal end DVDD is started power up, until the t1 moment powers on completion.In this power up
The voltage of one node P1 is lower than the reference signal of reference signal end VREF, so that the height electricity of the first signal is written in second node P2
It is flat；First switch transistor M1, second switch transistor M2 ..., the n-th switching transistor Mn the first signal high level make
It is in the conductive state under, so that half value analog voltage signal HAVDD line and the first data signal line Data_1, the second number
According to signal wire Data_2 ..., be conducting connection between the n-th data signal line Data_n.However because in the prior art, in number
After word voltage signal end DVDD completion powers on (t1 moment), half value analog voltage signal HAVDD line is just started power up, and in number
In the power up of word voltage signal end DVDD, data signal line Data does not receive the number electricity of source driving chip output
Signal is pressed, therefore, even if being connected to half value analog voltage signal HAVDD line one with data signal line Data in start process
It rises, still may insure the stability of booting timing.
The display stage: half value analog voltage signal HAVDD line is started power up from the t1 moment, and completes to power at the t2 moment.
And data signal line Data receives the digital voltage signal of source driving chip output, realizes display function.In this stage first
The voltage of node P1 is higher than VREF, and the low level of second signal is written in second node P2；First switch transistor M1, second switch
Transistor M2 ..., the n-th switching transistor Mn be in off state under the low level effect of second signal so that half
Be worth analog voltage signal HAVDD line and the first data signal line Data_1, the second data signal line Data_2 ..., the n-th data
It is to disconnect between signal wire Data_n.So that in the display stage, the half value simulation of half value analog voltage signal HAVDD line
Voltage signal will not interference data signal line Data data-signal work normally, to ensure that display panel is normally shown.
Shut-down-phase: at the t3 moment, digital voltage signal end DVDD, half value analog voltage signal HAVDD line sum number it is believed that
Number line Data starts power down, and the voltage of first node P1 is lower than the reference signal of reference signal end VREF, so that second node
The high level of the first signal is written in P2；First switch transistor M1, second switch transistor M2 ..., the n-th switching transistor Mn
It is in the conductive state under the high level effect of the first signal, so that half value analog voltage signal HAVDD line and the first number
According to signal wire Data_1, the second data signal line Data_2 ..., be conducting connection between the n-th data signal line Data_n.
So that half value analog voltage signal is identical with the power down trend of data-signal, as shown in Figure 4.It should be noted that Fig. 4 institute
In the case where showing that thick dashed line is shown not using the circuit provided by the invention for eliminating and shutting down and flashing white on data signal line Data, number
It is believed that number power down trend.
Shown in sum up, in shutdown process, because being shut down the circuit to flash white using above-mentioned elimination provided in an embodiment of the present invention,
So that half value analog voltage signal is identical as the power down trend of data-signal, and because half value analog voltage signal in the prior art with
The power down trend of public voltage signal is close, therefore, half value analog voltage signal, public voltage signal and data-signal three
Power down trend is essentially identical, so that liquid crystal molecule both ends no longer have pressure difference caused by public voltage signal and data-signal, closes
It is not in the phenomenon that flashing white during machine.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display panels, including the embodiment of the present invention to mention
The electricity that the circuit that the above-mentioned elimination shutdown supplied flashes white, the principle solved the problems, such as due to the display panel and above-mentioned elimination shutdown are flashed white
The principle that road solves the problems, such as is similar, and therefore, the implementation of the display panel provided in an embodiment of the present invention may refer to of the invention real
The implementation for the circuit that the above-mentioned elimination shutdown that example provides flashes white is applied, overlaps will not be repeated.And it is to be appreciated that this is aobvious
Show that panel is liquid crystal display panel；Other essential component parts (such as timing control plate TCON of the display panel
Board and source data driving chip S-IC) it is also not do herein superfluous it will be apparent to an ordinarily skilled person in the art that have
It states, also should not be taken as limiting the invention.
And in above-mentioned display panel provided in an embodiment of the present invention, to eliminate what shutdown flashed white convenient for circuit design
The detecting module 101 and comparison module 102 of circuit can be set on timing control plate, and drive module 103 can be integrated in source number
According on driving chip.
Based on the same inventive concept, the embodiment of the invention also provides a kind of display devices, including the embodiment of the present invention to mention
The above-mentioned display panel supplied, the display device can be with are as follows: mobile phone, tablet computer, television set, display, laptop, number
Camera, navigator, smartwatch, body building wrist strap, personal digital assistant, self-service deposit/withdrawal machine etc. are any having a display function
Products or components.Other essential component parts for display device are that those skilled in the art should manage
What solution had, this will not be repeated here, also should not be taken as limiting the invention.The implementation of the display device may refer to above-mentioned aobvious
Show the embodiment of panel, overlaps will not be repeated.
It should be noted that, in this document, such as first and second etc relational terms are used merely to an entity
Or operation is distinguished with another entity or operation, is appointed without necessarily requiring or implying existing between these entities or operation
What this actual relationship or sequence.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of circuit eliminating shutdown and flashing white characterized by comprising detecting module, comparison module and drive module；
Wherein, the detecting module is respectively connected with digital voltage signal end, first node, for being believed according to the digital voltage
The digital voltage signal at number end determines the voltage of the first node；
The comparison module is respectively connected with the first node, reference signal end, second node, for determining the reference
When the reference signal of signal end is greater than or equal to the voltage of the first node, the second node is written into the first signal；
The drive module is respectively connected with the second node, half value analog voltage signal line, data signal line, for closing
During machine, the half value analog voltage signal line and the data are believed under the control of the first signal of the second node
The conducting of number line.
2. the circuit as described in claim 1 eliminating shutdown and flashing white, which is characterized in that the comparison module is also used in determination
When the reference signal at the reference signal end is less than the voltage of the first node, the second node is written into second signal；
The drive module is also used to during display, by the half value under the control of the second signal of the second node
Analog voltage signal line and the data signal line disconnect.
3. the circuit as claimed in claim 1 or 2 eliminating shutdown and flashing white, which is characterized in that the detecting module includes: first
Resistance and second resistance；
Wherein, one end of the first resistor is connected with the digital voltage signal end, and the other end is connected with the first node；
One end of the second resistance is connected with the first node, other end ground connection.
4. the circuit as claimed in claim 1 or 2 eliminating shutdown and flashing white, which is characterized in that the comparison module includes: voltage
Comparator and amplifier；
Wherein, the normal phase input end of the voltage comparator is connected with the first node, and inverting input terminal and the reference are believed
Number end is connected, and output end is connected with the control terminal of the amplifier, the input terminal of the amplifier through the second node with it is electric
Source is connected, output end ground connection.
5. the as claimed in claim 4 circuit eliminating shutdown and flashing white, which is characterized in that the amplifier include 3rd resistor,
Triode and the 4th resistance；
Wherein, the base stage of the triode is connected through the 3rd resistor with the output end of the voltage comparator, collector with
The second node is connected, emitter ground connection；
One end of 4th resistance is connected with the second node, and the other end is connected with the power end.
6. the circuit as claimed in claim 1 or 2 eliminating shutdown and flashing white, which is characterized in that the drive module includes multiple
Sequentially connected switching transistor, and the quantity of the switching transistor is identical as the quantity of the data signal line；
The grid of each switching transistor is connected with the second node；
First pole of first switching transistor is connected with the half value analog voltage signal line, the last one described switch
Second pole of transistor is connected with the data signal line；
In addition to the first pole of first switching transistor and the second pole of the last one switching transistor, often
The second of the switching transistor extremely adjacent thereto of the first of a switching transistor is extremely believed with data described in same
Number line is connected.
7. a kind of display panel, which is characterized in that including the electricity as claimed in any one of claims 1 to 6 eliminating shutdown and flashing white
Road.
8. display panel as claimed in claim 7, including timing control plate and source data driving chip；It is characterized in that, institute
It states the detecting module for eliminating the circuit that shutdown flashes white and comparison module is located on the timing control plate, the drive module is located at
On the source data driving chip.
9. a kind of display device, which is characterized in that including display panel as claimed in claim 7 or 8.
10. a kind of driving method as claimed in any one of claims 1 to 6 for eliminating the circuit that shutdown flashes white, which is characterized in that
Include:
Detecting module determines the voltage of first node according to the digital voltage signal at digital voltage signal end；
Comparison module is when the reference signal for determining reference signal end is greater than or equal to the voltage of the first node, by the first letter
Number write-in second node；
Drive module is in shutdown process, by half value analog voltage signal line under the control of the first signal of the second node
It is connected with data signal line.
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|---|---|---|---|
| CN201810871199.3A CN108962174B (en) | 2018-08-02 | 2018-08-02 | Circuit for eliminating power-off flash, driving method thereof, display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871199.3A CN108962174B (en) | 2018-08-02 | 2018-08-02 | Circuit for eliminating power-off flash, driving method thereof, display panel and display device |
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| CN109559702A (en) * | 2019-01-15 | 2019-04-02 | 合肥鑫晟光电科技有限公司 | Public electrode voltages control circuit and driving method, display panel |
| CN112614469A (en) * | 2020-12-24 | 2021-04-06 | 北京集创北方科技股份有限公司 | Electronic device, driving apparatus, power supply, and electronic apparatus |
| CN113129850A (en) * | 2021-04-16 | 2021-07-16 | 京东方科技集团股份有限公司 | Device and method for improving boot-strap afterimage and display device |
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