CN106597715A - Sub-pixel unit, display device and driving method for display device - Google Patents
Sub-pixel unit, display device and driving method for display device Download PDFInfo
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- CN106597715A CN106597715A CN201710065914.XA CN201710065914A CN106597715A CN 106597715 A CN106597715 A CN 106597715A CN 201710065914 A CN201710065914 A CN 201710065914A CN 106597715 A CN106597715 A CN 106597715A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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- Optics & Photonics (AREA)
- Geometry (AREA)
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- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Liquid Crystal Display Device Control (AREA)
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Abstract
The invention relates to the technical field of display panel manufacturing and particularly relates to a sub-pixel unit, a display device and a driving method for the display device. When a same gray scale is displayed, the driving voltage of a data line can be kept constant under the condition of realizing polarity inversion, so that the power consumption can be reduced. The sub-pixel unit provided by the embodiment of the invention comprises a first electrode and a second electrode used for forming pixel capacitance; the sub-pixel unit further comprises a first control module and a second control module; the first control module is used for communicating the data line with the first electrode and communicating a common electrode wire with the second electrode when a starting signal is input by a first grid line; and the second control module is used for communicating the data line with the second electrode and communicating the common electrode wire with the first electrode when the starting signal is input by a second grid line. The sub-pixel unit according to the embodiment of the invention is used for manufacturing and producing the display device.
Description
Technical field
The present invention relates to display floater manufacturing technology field, more particularly to a kind of sub-pixel unit, display device and should
The driving method of display device.
Background technology
At present, liquid crystal display remains the main flow of display field, but, because display panels are solid through long-time
After determining the lighting of picture, even if voltage is canceled, liquid crystal molecule can be produced due to applying the DC voltage in a direction for a long time
, there is constant luminance difference in raw polarization, show as direct current image retention by the panel zone for polarizing.
In the prior art, the part in the Minimum Area for being surrounded positioned at grid line and data wire is a sub-pixel unit,
As shown in figure 1, the sub-pixel unit includes thin film transistor (TFT) TFT, liquid crystal capacitance Clc (also referred to as pixel capacitance), it is described thin
The grid of film transistor TFT is connected to the grid line G, and source electrode is connected to the data wire D.In order to eliminate liquid crystal molecule polarization institute
The direct current image retention for causing, normal liquid crystal drive must apply AC field, i.e., the generating positive and negative voltage phase for putting on pixel electrode
For common electric voltage alternately overturns, when the voltage of pixel electrode is higher than the voltage of public electrode, liquid crystal drive voltage is positive pole
Property, and when the voltage of pixel electrode is less than the voltage of public electrode, liquid crystal drive voltage is negative polarity, so, no matter liquid crystal
Driving voltage is positive polarity or negative polarity, as long as the voltage difference absolute value one between pixel electrode voltage and public electrode voltages
Cause, the GTG for being showed be it is consistent, in both cases, the steering of liquid crystal molecule be but it is antipodal, so
Polarity inversion can be realized such that it is able to reduce the generation of direct current image retention.
However, in order to realize the purpose that polarity is constantly inverted, in the prior art, when public electrode voltages are constant, plus
The gamma electric voltage amplitude of variation for carrying on the pixel electrode is larger, for example：Public electrode voltages are 5V, when liquid crystal drive voltage is just
Polarity chron, the voltage for being applied to pixel electrode is 5～10V；When liquid crystal drive voltage is negative polarity, pixel electrode is applied to
Voltage is 0～5V；That is being applied to the voltage of pixel electrode needs to change between 0～10V so that power consumption is larger.
The content of the invention
Present invention is primarily targeted at, there is provided the driving of a kind of sub-pixel unit, display device and the display device
Method, can keep data wire driving voltage constant when same GTG is shown in the case of realizing polarity inversion such that it is able to
Reduce power consumption.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：
On the one hand, the embodiment of the present invention provides a kind of sub-pixel unit, and the sub-pixel unit is included for forming pixel
The first electrode and second electrode of electric capacity,
The sub-pixel unit also includes the first control module and the second control module；
First control module is used for the first grid line of connection, data wire, public electrode wire, the first electrode and described
Second electrode, for when first grid line is input into open signal, the data wire being connected with the first electrode, and will
The public electrode wire is connected with the second electrode；First grid line be input into cut-off signals when, by the data wire with
The first electrode disconnects, and the public electrode wire is disconnected with the second electrode；
Second control module is used for the second grid line of the connection, data wire, the public electrode wire, described first electric
Pole and the second electrode, for when second grid line is input into open signal, by the data wire and the second electrode
Connection, and the public electrode wire is connected with the first electrode；When second grid line is input into cut-off signals, will be described
Data wire disconnects with the second electrode, and the public electrode wire is disconnected with the first electrode.
Optionally, first control module includes：First switch element and second switch element；
Wherein, the control end of the first switch element and the second switch element connects first grid line, described
The signal end of first switch element connects the data wire, and the output end of the first switch element connects the first electrode,
The output end of the second switch element connects the second electrode, and the signal end connection of the second switch element is described public
Electrode wires；
When the control end of the first switch element and the second switch element receives the first grid line transmission
During open signal, the signal end and output end of the first switch element and signal end and the output of the second switch element
End is both turned on, described when the control end receives the cut-off signals of signal output part output transmission of first grid line
The signal end and output end of the signal end and output end of first switch element and the second switch element disconnects.
Optionally, second control module includes：3rd switch element and the 4th switch element；
Wherein, the control end of the 3rd switch element and the 4th switch element connects second grid line, described
The signal end of the 3rd switch element connects the data wire, and the output end of the 3rd switch element connects the second electrode,
The output end of the 4th switch element connects the first electrode, and the signal end connection of the 4th switch element is described public
Electrode wires；
When the control end of the 3rd switch element and the 4th switch element receives the second grid line transmission
During open signal, the signal end of the 3rd switch element and the signal end and output of output end and the 4th switch element
End is both turned on, described when the control end receives the cut-off signals of signal output part output transmission of first grid line
The signal end and output end of the signal end and output end of first switch element and the second switch element disconnects.
Optionally, the public electrode wire ground connection.
Optionally, the first switch element and the second switch element are thin film transistor (TFT)；Or,
3rd switch element and the 4th switch element are thin film transistor (TFT).
On the other hand, the embodiment of the present invention provides a kind of display device, including：A plurality of grid line and a plurality of grid line are handed over
Data wire and the sub-pixel unit as above of array arrangement that fork is arranged, the Asia is arranged per data wire described in bar with one
Pixel cell is connected, and first control module and the second control module of each sub-pixel unit connect respectively the data in the row
Line；The grid line group constituted per adjacent two grid lines is connected with sub-pixel unit described in a line, and each sub- picture in the row
First control module and the second control module of plain unit connects respectively two grid lines in the grid line group.
Optionally, in a line sub-pixel unit, the first control module of each sub-pixel unit is all connected with the grid line group
Same grid line, the second control module of each sub-pixel unit is all connected with another grid line in the grid line group；Or,
In a line sub-pixel unit, the first control module of any one sub-pixel unit is adjacent with the sub-pixel unit
Second control module of sub-pixel unit connects the same grid line in the grid line group.
Optionally, the display floater also includes：The scanning signal control module connected one to one with the grid line group；
Each described scanning signal control module includes the 5th switch element and the 6th switch element；
The same scanning signal control module, the signal end and output end of the 5th switch element connect respectively to be swept
Wherein one grid line in signal input part and a grid line group is retouched, the signal end and output end of the 6th switch element connect respectively
Connect another grid line in the scanning signal input and the grid line group, the control end of the 5th switch element and described the
When the control end of six switch elements is used to be input into the first control signal, when making the 5th switch element be in opening, institute
State the 6th switch element and be off state, for being input into during the second control signal, make the 6th switch element in unlatching
State, the 5th switch element is off state；
When the 5th switch element is in opening or during off state, the signal end of the 5th switch element and output
End is turned on or off；
When the 6th switch element is in opening or during off state, the signal end of the 6th switch element and
Output end is turned on or off.
Optionally, the 5th switch element and the 6th switch element are thin film transistor (TFT).
Another further aspect, the embodiment of the present invention provides a kind of driving method of display device, is applied to display as above
Device, including：
Within the scan period of a frame, to grid line group each described in wherein one grid line progressively scan, including：
To the wherein one grid line input open signal in a grid line group, pieces of data line and the public electrode wire is set to be respectively communicated with this
First electrode and second electrode in each sub-pixel unit of grid line connection, with the picture formed to the first electrode and second electrode
Plain electric capacity is charged, at the end of the pixel capacitance charges, to the grid line input cut-off signals；
Within the scan period of next frame, to grid line group each described in another grid line progressively scan, including：
To another grid line input open signal in a grid line group, pieces of data line and the public electrode wire is set to be respectively communicated with the grid
First electrode and second electrode in each sub-pixel unit of line connection, with the pixel formed to the first electrode and second electrode
Electric capacity carries out reverse charging, at the end of the pixel capacitance reverse charging, to the grid line input cut-off signals.
The embodiment of the present invention provides the driving method of a kind of sub-pixel unit, display device and the display device, passes through
First control module and the second control module are set in sub-pixel unit, because first control module is used for connection first
Grid line, data wire, public electrode wire, the first electrode and the second electrode, within the scan period of a frame, by institute
State the first grid line input open signal and cut-off signals, gamma electric voltage (exemplary, the gamma that the data wire is exported
Voltage is 5v) plus on the first electrode, common electric voltage (exemplary, the common electric voltage that the public electrode wire is exported
For 0v) plus on the second electrode, can (predeterminated voltage can be a certain ash by the pixel capacitance charges a to predeterminated voltage
Voltage corresponding to rank), at this moment liquid crystal drive voltage is positive polarity, and magnitude of voltage is 5v；And second control module is used to connect
Connect the second grid line, the data wire, the public electrode wire, the first electrode and the second electrode, sweeping in next frame
Retouch in the cycle, by being input into open signal and cut-off signals to second grid line, the gamma electric voltage that the data wire is exported
(5v) common electric voltage (0v) that plus on the second electrode, the public electrode wire is exported adds on the first electrode, can be by institute
Pixel capacitance reverse charging is stated to predeterminated voltage, at this moment liquid crystal drive voltage is negative polarity, magnitude of voltage is also 5v, only by changing
Become the charging direction of pixel capacitance, gamma electric voltage and common electric voltage and need not change, and gamma electric voltage is by data wire
What driver was produced, therefore, it is possible in the same GTG of display, in the case of realizing polarity inversion data wire driving voltage be kept
It is constant such that it is able to reduce power consumption.Solve in prior art the number when polarity inversion is realized in the case that common electric voltage is constant
Amplitude of variation according to line driving voltage is larger, so that the larger problem of power consumption.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
A kind of structural representation of sub-pixel unit that Fig. 1 is provided for prior art；
Fig. 2 is a kind of structural representation of sub-pixel unit provided in an embodiment of the present invention；
Fig. 3 is a kind of concrete structure schematic diagram of the sub-pixel unit based on Fig. 2 provided in an embodiment of the present invention；
A kind of equivalent circuit diagram of the sub-pixel unit based on Fig. 1 that Fig. 4 is provided for prior art；
When Fig. 5 is the first switch element based on Fig. 3 provided in an embodiment of the present invention and second switch element conductive etc.
Effect circuit diagram；
When Fig. 6 is the 3rd switch element based on Fig. 3 provided in an embodiment of the present invention and four switching elements conductives etc.
Effect circuit diagram；
Fig. 7 is that the curve of cyclical fluctuations of pixel capacitance both end voltage under a kind of SECO provided in an embodiment of the present invention is illustrated
Figure；
Fig. 8 is a kind of structural representation of display device provided in an embodiment of the present invention；
Fig. 9 is a kind of structural representation of the increase scanning signal control module based on Fig. 8 provided in an embodiment of the present invention；
Figure 10 is a kind of sequential being driven to each row sub-pixel unit based on Fig. 9 provided in an embodiment of the present invention
Figure；
Figure 11 is another kind of structural representation for increasing scanning signal control module based on Fig. 8 provided in an embodiment of the present invention
Figure；
Figure 12 is a kind of sequential being driven to each row sub-pixel unit based on Figure 11 provided in an embodiment of the present invention
Figure.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In describing the invention, it is to be understood that term " " center ", " on ", D score, "front", "rear", " left side ",
The orientation or position relationship of the instruction such as " right side ", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " is based on shown in the drawings
Orientation or position relationship, be for only for ease of description the present invention and simplify description, rather than indicate or imply indication device or
Element with specific orientation, with specific azimuth configuration and operation, therefore must be not considered as limiting the invention.
In description of the invention, unless otherwise stated, " multiple " are meant that two or more.
On the one hand, the embodiment of the present invention provides a kind of sub-pixel unit, as shown in Fig. 2 the sub-pixel unit includes using
In formation pixel capacitance ClcFirst electrode A and second electrode B,
The sub-pixel unit also includes the first control module 10 and the second control module 20；
First control module 10 is used to connect the first grid line g1, it is data wire D, public electrode wire Com, described first electric
Pole A and second electrode B, in the first grid line g1During input open signal, by the data wire D and described first
Electrode A is connected, and the public electrode wire Com is connected with second electrode B；In the first grid line g1Input shut-off letter
Number when, the data wire D is disconnected with first electrode A, and the public electrode wire Com is broken with second electrode B
Open；
Second control module 20 is used to connect the second grid line g2, the data wire D, the public electrode wire Com, institute
First electrode A and second electrode B are stated, in the second grid line g2Input open signal when, by the data wire D with
The second electrode B connection, and the public electrode wire Com is connected with first electrode A；In the second grid line g2It is defeated
When entering cut-off signals, the data wire D is disconnected with second electrode B, and by the public electrode wire Com and described first
Electrode A disconnects.
Wherein, the pixel capacitance is liquid crystal capacitance, uses ClcTo represent.
Sub-pixel unit provided in an embodiment of the present invention can apply to AD-SDS (Advanced-Super
Dimensional Switching, senior super dimension field switch) type, IPS (In Plane Switch, transverse electric field effect) type,
The classes such as TN (Twist Nematic, twisted-nematic) type, FFS (Fringe Field Switching, fringe field switching technology) type
In the display panels of type.Wherein, first electrode A and second electrode B in sub-pixel unit can according to its apply
Display panels type, is arranged on same substrate (typically array base palte), now first electrode A and second electrode B
Positioned at the same side of liquid crystal layer；Can also set up separately on different substrate (different substrate generally refers to color membrane substrates and array base palte),
Liquid crystal layer (not shown) is now provided between first electrode A and second electrode B.No matter which kind of display panels are applied to
In, can be by the pixel capacitance ClcFirst electrode A and second electrode B between applied voltage, with to liquid crystal molecule
Steering be driven such that it is able to show different GTGs.
The embodiment of the present invention provides a kind of sub-pixel unit, by arranging the He of the first control module 10 in sub-pixel unit
Second control module 20, because first control module 10 is used to connect the first grid line g1, data wire D, public electrode wire
Com, first electrode A and second electrode B, within the scan period of a frame, by the first grid line g1Input
Open signal and cut-off signals, (data-signal is gamma electric voltage to the data-signal that the data wire D is exported, example
Property, the gamma electric voltage is 5v) it is added in first electrode A, the common electric voltage (example that the public electrode wire Com is exported
Property, the common electric voltage is 0v) it is added in second electrode B, can be by the pixel capacitance ClcCharging to a predeterminated voltage (should
Predeterminated voltage can be the voltage corresponding to a certain GTG), at this moment liquid crystal drive voltage is positive polarity, and magnitude of voltage is 5v；And institute
Stating the second control module 20 is used to connect the second grid line g2, the data wire D, the public electrode wire Com, the first electrode
A and second electrode B, within the scan period of next frame, by the second grid line g2Input open signal and shut-off
Signal, the gamma electric voltage (5v) that the data wire D is exported is added in second electrode B, and the public electrode wire Com is exported
Common electric voltage (0v) is added in first electrode A, can be by the pixel capacitance ClcReverse charging to predeterminated voltage, at this moment liquid crystal drive
Dynamic voltage is negative polarity, and magnitude of voltage is also 5v, only by change pixel capacitance ClcCharging direction, gamma electric voltage and common electrical
Pressure simultaneously need not change, and because gamma electric voltage is produced by datawire driver, therefore, it is possible to show same ash
During rank, keep data wire driving voltage constant in the case of realizing polarity inversion such that it is able to reduce power consumption.Solve existing skill
When polarity inversion is realized in the case that common electric voltage is constant, the amplitude of variation of data wire driving voltage is larger in art, so that
The larger problem of power consumption.
Hereinafter detailed illustration is carried out to the concrete structure of sub-pixel unit as shown in Figure 2.
Referring to Fig. 3, first control module 10 can include：First switch element T1With second switch element T2；
Wherein, the first switch element T1With the second switch element T2Control end connect the first grid line g1,
The first switch element T1Signal end connect the data wire D, the first switch element T1Output end connection described the
One electrode A, the second switch element T2Output end connect second electrode B, the second switch element T2Signal end
Connect the public electrode wire Com；
As the first switch element T1With the second switch element T2Control end receive the first grid line g1Pass
During defeated open signal, the first switch element T1Signal end and output end and the second switch element T2Signal
End and output end are both turned on, when the control end receives the first grid line g1During the cut-off signals of transmission, described first opens
Close element T1Signal end and output end and the second switch element T2Signal end and output end disconnect.
Specifically, within the scan period (showing the time cycle of a frame picture) of a frame, by the first grid
Line g1Input open signal, the first switch element T1Control end under the control of the open signal, described first is opened
Close element T1Signal end and output end conducting, at this moment, the voltage signal of data wire D output is added in first electrode A
On, the second switch element T2Control end under the control of the open signal, by the second switch element T2Signal
End and output end conducting, the voltage signal of the public electrode wire Com outputs is added in second electrode B, in such manner, it is possible to logical
The voltage signal of the data wire D outputs and the voltage signal of public electrode wire Com outputs are crossed to the pixel capacitance Clc
It is charged, to the first grid line g1During input cut-off signals, the now pixel capacitance ClcVoltage keep, strict meaning
Say in justice, pixel capacitance ClcCan slightly discharge.
Wherein, the first grid line g1The open signal of transmission can be high level signal, or low level signal,
With the first switch element T1With the second switch element T2Type it is relevant.As long as in the first grid line g1To described
First switch element T1With the second switch element T2Control end transmission open signal when, the first switch element T1's
Signal end and output end and the second switch element T2Signal end and output end be both turned on, in the first grid line g1To
The first switch element T1With the second switch element T2Control end transmission cut-off signals when, the first switch element
T1Signal end and output end and the second switch element T2Signal end and output end disconnect.
Here, first electrode A can be pixel electrode, and at this moment, second electrode B is then public electrode, to institute
State pixel capacitance ClcAfter charging complete, the pixel capacitance ClcThe voltage V at two endsABEqual to pixel electrode voltage and public electrode
Difference in voltage, i.e., deduct common electric voltage equal to gamma electric voltage.
Second control module 20 can include：3rd switch element T3With the 4th switch element T4；
Wherein, the 3rd switch element T3With the 4th switch element T4Control end connect the second grid line g2,
The 3rd switch element T3Signal end connect the data wire D, the 3rd switch element T3Output end connection described the
Two electrode Bs, the 4th switch element T4Output end connect first electrode A, the 4th switch element T4Signal end
Connect the public electrode wire Com；
As the 3rd switch element T3With the 4th switch element T4Control end receive the second grid line g2Pass
During defeated open signal, the 3rd switch element T3Signal end and output end and the 4th switch element T4Signal
End and output end are both turned on, when the control end receives the second grid line g2Transmission cut-off signals when, the described 3rd
Switch element T3Signal end and output end and the 4th switch element T4Signal end and output end disconnect.
Specifically, within the scan period of a frame, by the second grid line g2Input open signal, the described 3rd opens
Close element T3Control end under the control of the open signal, by the first switch element T3Signal end and output end lead
Logical, at this moment, the voltage signal of the data wire D outputs is added in second electrode B, the 4th switch element T4Control
Hold under the control of the open signal, by the 4th switch element T4Signal end and output end conducting, the common electrical
The voltage signal of polar curve Com outputs is added in first electrode A, in such manner, it is possible to pass through the voltage letter of the data wire D outputs
Number and the public electrode wire Com output voltage signal to the pixel capacitance ClcIt is charged, to second grid line
g2During input cut-off signals, to the pixel capacitance ClcVoltage kept；As described above, first electrode A is pixel
Electrode, second electrode B is then public electrode, to the pixel capacitance ClcAfter charging complete, the pixel capacitance ClcTwo ends
Voltage be equal to the difference of pixel electrode voltage and public electrode voltages, i.e., deduct gamma electric voltage equal to common electric voltage, it is seen then that pass through
Second control module 20 control to the voltage after the pixel capacitance charges with controlled by first control module 10
To the voltage after the pixel capacitance charges, numerical value is equal, and in opposite direction, therefore, for same sub-pixel unit, can
Within the frame upset cycle, it is ensured that while the upset of liquid crystal molecule, keep gamma electric voltage and common electric voltage constant such that it is able to drop
The amplitude of variation of low data wire driving voltage, reduces power consumption.
Also, it should be noted that the concrete structure of the above first control module 10 and second control module 20 is only
Only it is a kind of example, in embodiments of the present invention, the concrete knot of first control module 10 and second control module 20
Structure is not limited thereto.For example, second control module 20 can further include the 5th switch element, at this moment, described
The control end of the 5th switch element can be with the second grid line g2Connection, the signal end of the 5th switch element can be with institute
Data wire D connections are stated, the output end of the 5th switch element can be connected with the signal end of the 3rd switch element, equally
The goal of the invention of the embodiment of the present invention can be reached.
In the prior art, when polarity inversion is realized, due to stray voltage presence caused by pixel capacitance two ends
The asymmetry of voltage also has large effect to direct current image retention, below, by by the sub-pixel unit and Ben Fa shown in Fig. 1
The eradicating efficacy of direct current image retention is further described as a example by sub-pixel unit shown in bright embodiment.
Sub-pixel unit according to Fig. 1, it can be deduced that corresponding equivalent circuit diagram is as shown in Figure 4.In practical application
In, due to thin film transistor (TFT) TFT grid and drain electrode between have parasitic capacitance Cgd.And work as the moment that grid line is switched on and off,
Very violent (the V of voltage changeONAbout 30V, VOFFAbout -8V, such grid potential nearly voltage change of 38V or so), this electricity
Bucklingization can be via CgdHave influence on pixel capacitance ClcOn voltage, at this moment, the pixel capacitance ClcTwo ends have a pressure
Drop.Exemplary, within the scan period of a frame, it is assumed that the voltage corresponding to shown GTG is 8v, due to beating in grid line
The on an off disconnected moment, due to parasitic capacitance CgdImpact have the pressure drop of 2v, it is assumed that the voltage for being applied to public electrode is 0v,
Then by data wire D to pixel electrode apply 10v voltage, within the scan period of next frame, will by the data wire D to
Pixel electrode applies the voltage of -10v, and because the impact of parasitic capacitance has the pressure drop of 2v, therefore, the at this moment pixel capacitance
Voltage be -12v, it is symmetrical that gamma electric voltage is simultaneously not in relation to common electric voltage, the presence of DC component can not be completely eliminated, a lot
In product, the problem of direct current image retention is still had.
And in embodiments of the present invention, as first switch element T1With the second switch element T2When opening, the sub- picture
The equivalent circuit diagram of plain unit is shown in Figure 5, as the 3rd switch element T3With the 4th switch element T4When opening,
The equivalent circuit diagram of the sub-pixel unit is shown in Figure 6.It is a kind of sequential control provided in an embodiment of the present invention referring to Fig. 7
The curve of cyclical fluctuations schematic diagram of the lower pixel capacitance both end voltage of system, when thin film transistor (TFT) turns on and off moment, pixel capacitance ClcTwo
The voltage V at endABStill can be because of parasitic capacitance CgdPresence and produce change (having a pressure drop as shown in Figure 7), but ought be just
When negative polarity switches, equivalent to changing pixel capacitance ClcCharging direction, and the structure of parasitic capacitance and electric charge distribution return
Road is basically identical, and simply direction changes, then the voltage V at pixel capacitance two endsABChange is also symmetrical, in the scanning week of two frames
In phase, pixel capacitance both end voltage VABPositive and negative alternating, and Striking symmetry, so completely eliminate the presence of DC component, from
And eliminate direct current image retention.
In a preferred embodiment of the present invention, the public electrode wire Com ground connection.By by the public electrode wire Com
Ground connection, each GTG one gamma electric voltage of correspondence, can further reduce data wire driving voltage, reduce power consumption.
Preferably, the first switch element T1With the second switch element T2It is thin film transistor (TFT)；Or,
The 3rd switch element T3With the 4th switch element T4It is thin film transistor (TFT).
On the other hand, the embodiment of the present invention provides a kind of display device, referring to Fig. 8, including：A plurality of grid line (g1、g2…
g2m) and a plurality of grid line data wire (D arranged in a crossed manner1、D2…Dn) and array arrangement sub-pix list as above
Unit 01, is connected per data wire described in bar with a row sub-pixel unit 01, and the first of each sub-pixel unit 01 controls in the row
Molding block and the second control module connect respectively the data wire；Grid line group (the G constituted per adjacent two grid lines1、
G2…Gm) be connected with sub-pixel unit described in a line 01, and in the row each sub-pixel unit 01 the first control module and second
Control module connects respectively grid line group (G1、G2…Gm) in two grid lines.
The embodiment of the present invention provides a kind of display device, and the display device includes sub-pixel unit as above 01, because
This, by being input into corresponding timing control signal to a plurality of grid line, can realize to sub-pixel unit 01 each described
Polarity inversion, and the data wire driving voltage corresponding to every data line can be reduced, so as to reduce power consumption.
, wherein it is desired to explanation, top in each grid line group is the first grid line, on the lower be the second grid line, but
Be the present invention be that embodiment is not limited thereto, in each grid line group the position of the first grid line and the second grid line can be exchange
's.So, in the 1st grid line group, the first grid line then becomes the 2nd row grid line g2, the second grid line then becomes the 1st row grid line
g1.Equally, in the 2nd grid line group, the first grid line becomes the 4th row grid line g4, the second grid line then becomes the 3rd row grid line g3。
In the examples below, with it is top in each grid line group be the first grid line, on the lower to carry out as a example by the second grid line
Explanation.
Preferably, referring to Fig. 9, the display device also includes：With the grid line group (G1, G2…Gm) connect one to one
Scanning signal control module 30；
Each described scanning signal control module 30 includes the 5th switch element T5With the 6th switch element T6；
The same scanning signal control module 30, the 5th switch element T5Signal end and output end connect respectively
Meet wherein one grid line in scanning signal input and a grid line group, the 6th switch element T6Signal end and output end
Connect the scanning signal input and another grid line in the grid line group, the 5th switch element T respectively5Control end
With the 6th switch element T6Control end be used for be input into the first control signal when, make the 5th switch element T5In opening
When opening state, the 6th switch element T6State is off, for being input into during the second control signal, the 6th switch is made
Element T6In opening, the 5th switch element T5It is off state；
As the 5th switch element T5In opening or off state when, the 5th switch element T5Signal end and
Output end is turned on or off；
As the 6th switch element T6In opening or off state when, the 6th switch element T6Signal
End and output end are turned on or off.
By introducing scanning signal input, the quantity for not increasing gate drivers just can be to two in grid line group grid
Line carries out driven.
Wherein it is possible to increase by two articles of gate lines beyond A-A regions (Active Area) to open the described 5th respectively
Close element T5With the 6th switch element T6Be switched on and off be controlled, at this moment this two grid lines use respectively Gshift1With
Gshift2To represent, it is respectively used to be input into the first control signal and the second control signal, wherein, first control signal and the
Two control signals can be high level, it is also possible to equal low level, can be with one as high level, and another is low level, this
With the 5th switch element T5With the 6th switch element T6Type it is relevant.Exemplary, when the 5th switch element
T5With the 6th switch element T6Type it is identical when, then respectively to the Gshift1And Gshift2Input identical signal is (at this moment
First control signal is identical with second control signal, is high level or is low level) controlling described
Five switch element T5With the 6th switch element T6It is separately turned on, as the 5th switch element T5With the described 6th switch unit
Part T6Type it is different when, then respectively to the Gshift1And Gshift2The different signal of input (at this moment first control signal
It is high level with second control signal one, another is low level) controlling the 5th switch element T5With it is described
6th switch element T6It is separately turned on.
Below in conjunction with driver' s timing figure, as shown in Figure 10, the course of work of display device as shown in Figure 9 is carried out in detail
Description.
Within the scan period of a frame, to each grid line group (G1、G2…Gm) in wherein one grid line (g1, g3...
g2m-1) progressively scanned, including：By Gshift1To the 5th switch element T5The first control signal is input into, with to a line
Grid line group (such as G2) in wherein one grid line (such as g3) input open signal, make pieces of data line and the public electrode wire
It is respectively communicated with grid line g3First electrode and second electrode in each sub-pixel unit 01 of connection, with to the first electrode and the
The pixel capacitance that two electrodes are formed is charged, at the end of the pixel capacitance charges, by Gshift1To the described 5th switch
Element T5The second control signal is input into, with to grid line g3Input cut-off signals.
When specifically, to the wherein one grid line input open signal in a line grid line group, in remaining each row grid line group
Grid line is completely in closed mode, and within the scan period of a frame, two adjacent row grid line groups are (such as G1And G2) in, when upper one
Grid line group (G1) in a grid line (such as g1) input cut-off signals when, correspondingly, then next grid line group G2In a grid line
(such as g3) input open signal.
Within the scan period of next frame, to each grid line group (G1、G2…Gm) in another grid line (for example, g2,
g4... g2m) progressively scanned, including：By Gshift2To the 6th switch element T6Be input into the second control signal, with to
One grid line group (such as G2) in another grid line (such as g4) input open signal, make pieces of data line and the public electrode wire
It is respectively communicated with grid line g4First electrode and second electrode in each sub-pixel unit 01 of connection, with to the first electrode and the
The pixel capacitance that two electrodes are formed carries out reverse charging, at the end of the pixel capacitance reverse charging, by Gshift2To described
6th switch element T6The first control signal is input into, to the grid line input cut-off signals.
Certainly, referring to Figure 11, in order to realize the 5th switch element T5In opening when described in the 6th switch
Element T6It is off state, it is also possible to by the 5th switch element T5With the 6th switch element T6It is connected to same
Gate lines (use GshiftTo represent), at this moment, the 5th switch element T5With the 6th switch element T6Type it is different,
Can be with one as N-type transistor, another is P-type transistor, and when to the gate lines input high level signal, one is in
Opening, another is off state, and when to the gate lines input low level signal, one is off shape
State, another is in opening.
Below in conjunction with driver' s timing figure, as shown in figure 12, the course of work of display device as shown in figure 11 is carried out in detail
Thin description.When below with input high level signal, the 5th switch element T5Open, the 6th switch element T6Shut-off,
During input low level signal, the 5th switch element T5Shut-off, the 6th switch element T6Illustrate as a example by unlatching.
Within the scan period of a frame, to each grid line group (G1、G2…Gm) in wherein one grid line (g1, g3...
g2m-1) progressively scanned, including：To GshiftInput high level signal, with to a line grid line group (such as G2) in wherein one
Bar grid line is (such as g3) input open signal, make pieces of data line and the public electrode wire be respectively communicated with grid line g3What is connected is each
First electrode and second electrode in sub-pixel unit 01, to carry out to the pixel capacitance that the first electrode and second electrode are formed
Charge, at the end of the pixel capacitance charges, to GshiftInput low level signal, with to grid line g3Input cut-off signals.
When specifically, to the wherein one grid line input open signal in a line grid line group, in remaining each row grid line group
Grid line is completely in closed mode, and within the scan period of a frame, two adjacent row grid line groups are (such as G1And G2) in, when upper one
Grid line group (G1) in a grid line (such as g1) input cut-off signals when, correspondingly, then next grid line group G2In a grid line
(such as g3) input open signal.
Within the scan period of next frame, to each grid line group (G1、G2…Gm) in another grid line (for example, g2,
g4... g2m) progressively scanned, including：To GshiftInput low level signal, with to a grid line group (such as G2) in another
Grid line is (such as g4) input open signal, make pieces of data line and the public electrode wire be respectively communicated with grid line g4Each Asia of connection
First electrode and second electrode in pixel cell 01, to carry out instead to the pixel capacitance that the first electrode and second electrode are formed
To charging, at the end of the pixel capacitance reverse charging, to GshiftInput high level signal, with to the grid line input shut-off letter
Number.
Preferably, the 5th switch element T5With the 6th switch element T6It is thin film transistor (TFT).
, wherein it is desired to explanation, in a line sub-pixel unit 01, for different display GTGs, the sub-pix
The gamma electric voltage of the data wire output corresponding to unit 01 is different, defeated per data line for multiple sub-pixel units 01
The gamma electric voltage for going out changes in certain scope.
For each sub-pixel unit, its polarity is not stop conversion.When the voltage of pixel electrode is less than public electrode
Voltage when, referred to as negative polarity is referred to as positive polarity when the voltage of pixel electrode is higher than public electrode.For a line Asia picture
Plain unit, does not limit the pattern of polarity inversion.
In embodiments of the present invention, for a line sub-pixel unit, open when being input into a grid line in a line grid line group
When opening signal, the polarity of a sub-pixel unit is just or negative, depends primarily on the grid line and connects with first control module
Connect or be connected with second control module, when every two adjacent sub-pixel units by first control module or
Second control module is connected with the grid line, then the two sub-pixel units show identical polarity, and when per adjacent two
Individual sub-pixel unit is connected respectively by first control module and second control module with the grid line, then the two are sub-
Pixel cell shows contrary polarity.
Based on this, in embodiments of the present invention, for a line sub-pixel unit, with two kinds of preferred connected modes.
In a kind of connected mode, in a line sub-pixel unit 01, the first control module of each sub-pixel unit 01 connects
The same grid line in the grid line group is connect, the second control module of each sub-pixel unit is all connected with another grid in the grid line group
Line；
At this moment, this line sub-pixel unit 01 is charged to same polarity.
In another kind of connected mode, in a line sub-pixel unit 01, the first control mould of any one sub-pixel unit 01
Second control module of the neighboring sub-pixel unit of block and the sub-pixel unit connects the same grid line in the grid line group.
At this moment, in this line sub-pixel unit 01, the adjacent sub-pixel unit 01 of each two is charged to contrary polarity.
In both connected modes, when all of sub-pixel unit 01 is charged to same polarity chron in a line, in polarity
During upset, substantial amounts of electric current has to flow through public electrode wire, grid line and data wire.For with gate driver, data wire drive
Other pixels that device and common electrical pole plate are connected, guiding path has very high resistance, causes the stabilized speed of pixel voltage very
Slowly.And work as the adjacent pixel capacitance of each two in a line and be charged to contrary polarity chron, during polarity upset, charge two
Exchange between individual adjacent capacitor, so shielding very little when going up most electric current flowing, local current flows only through very short part.
Therefore, compared with former connected mode, by increasing capacitance it is possible to increase the stabilized speed of pixel voltage, so as to reduce the cross-talk of level.
Another further aspect, the embodiment of the present invention provides a kind of driving method of display device, is applied to display as above
Device, including：
Within the scan period of a frame, to grid line group each described in wherein one grid line progressively scan, including：
To the wherein one grid line input open signal in a grid line group, pieces of data line and the public electrode wire is set to be respectively communicated with this
First electrode and second electrode in each sub-pixel unit of grid line connection, with the picture formed to the first electrode and second electrode
Plain electric capacity is charged, at the end of the pixel capacitance charges, to the grid line input cut-off signals；
Within the scan period of next frame, to grid line group each described in another grid line progressively scan, including：
To another grid line input open signal in a grid line group, pieces of data line and the public electrode wire is set to be respectively communicated with the grid
First electrode and second electrode in each sub-pixel unit of line connection, with the pixel formed to the first electrode and second electrode
Electric capacity carries out reverse charging, at the end of the pixel capacitance reverse charging, to the grid line input cut-off signals.
The embodiment of the present invention provides a kind of driving method of display device, because the display device includes array arrangement
Sub-pixel unit as above, is driven with reference to driver' s timing signal to the display device, within the upset cycle of two frames,
Only change the charging direction of each pixel capacitance, gamma electric voltage and common electric voltage and need not change, number can be reduced
According to the amplitude of variation of line driving voltage such that it is able to reduce power consumption.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of said method embodiment can pass through
Completing, aforesaid program can be stored in a computer read/write memory medium the related hardware of programmed instruction, the program
Upon execution, the step of including said method embodiment is performed；And aforesaid storage medium includes：ROT, RAT, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the scope of the claims.
Claims (10)
1. a kind of sub-pixel unit, the sub-pixel unit includes the first electrode and second electrode for forming pixel capacitance,
Characterized in that,
The sub-pixel unit also includes the first control module and the second control module；
First control module is used for the first grid line of connection, data wire, public electrode wire, the first electrode and described second
Electrode, for when first grid line is input into open signal, the data wire being connected with the first electrode, and will be described
Public electrode wire is connected with the second electrode；First grid line be input into cut-off signals when, by the data wire with it is described
First electrode disconnects, and the public electrode wire is disconnected with the second electrode；
Second control module be used for connection the second grid line, the data wire, the public electrode wire, the first electrode and
The second electrode, for when second grid line is input into open signal, the data wire being connected with the second electrode,
And connect the public electrode wire with the first electrode；When second grid line is input into cut-off signals, by the data
Line disconnects with the second electrode, and the public electrode wire is disconnected with the first electrode.
2. sub-pixel unit according to claim 1, it is characterised in that
First control module includes：First switch element and second switch element；
Wherein, control end connection first grid line of the first switch element and the second switch element, described first
The signal end of switch element connects the data wire, and the output end of the first switch element connects the first electrode, described
The output end of second switch element connects the second electrode, and the signal end of the second switch element connects the public electrode
Line；
When the control end of the first switch element and the second switch element receives the unlatching of the first grid line transmission
During signal, the signal end and output end of the first switch element and the signal end and output end of the second switch element are equal
Conducting, when the control end receives the cut-off signals of signal output part output transmission of first grid line, described first
The signal end and output end of the signal end and output end of switch element and the second switch element disconnects.
3. sub-pixel unit according to claim 2, it is characterised in that
Second control module includes：3rd switch element and the 4th switch element；
Wherein, control end connection second grid line of the 3rd switch element and the 4th switch element, the described 3rd
The signal end of switch element connects the data wire, and the output end of the 3rd switch element connects the second electrode, described
The output end of the 4th switch element connects the first electrode, and the signal end of the 4th switch element connects the public electrode
Line；
When the control end of the 3rd switch element and the 4th switch element receives the unlatching of the second grid line transmission
During signal, the signal end and output end of the 3rd switch element and the signal end and output end of the 4th switch element are equal
Conducting, when the control end receives the cut-off signals of signal output part output transmission of first grid line, described first
The signal end and output end of the signal end and output end of switch element and the second switch element disconnects.
4. the sub-pixel unit according to any one of claim 1-3, it is characterised in that
The public electrode wire ground connection.
5. the sub-pixel unit according to Claims 2 or 3, it is characterised in that
The first switch element and the second switch element are thin film transistor (TFT)；Or,
3rd switch element and the 4th switch element are thin film transistor (TFT).
6. a kind of display device, it is characterised in that include：A plurality of grid line and a plurality of grid line data wire arranged in a crossed manner, with
And the sub-pixel unit as described in any one of claim 1-5 of array arrangement, per data wire described in bar and a row sub- picture
Plain unit is connected, and first control module and the second control module of each sub-pixel unit connect respectively the data in the row
Line；The grid line group constituted per adjacent two grid lines is connected with sub-pixel unit described in a line, and each sub- picture in the row
First control module and the second control module of plain unit connects respectively two grid lines in the grid line group.
7. display device according to claim 6, it is characterised in that
In a line sub-pixel unit, the first control module of each sub-pixel unit is all connected with the same grid in the grid line group
Line, the second control module of each sub-pixel unit is all connected with another grid line in the grid line group；
Or,
In a line sub-pixel unit, the first control module of any one sub-pixel unit and the adjacent sub- picture of the sub-pixel unit
Second control module of plain unit connects the same grid line in the grid line group.
8. display device according to claim 6, it is characterised in that
The display floater also includes：The scanning signal control module connected one to one with the grid line group；
Each described scanning signal control module includes the 5th switch element and the 6th switch element；
The same scanning signal control module, the signal end and output end of the 5th switch element connect respectively scanning letter
Wherein one grid line in number input and a grid line group, the signal end and output end of the 6th switch element connect respectively institute
Scanning signal input and another grid line in the grid line group are stated, the control end and the described 6th of the 5th switch element is opened
When closing the control end of element and being used to be input into the first control signal, when making the 5th switch element be in opening, described the
Six switch elements are off state, for being input into during the second control signal, make the 6th switch element in opening,
5th switch element is off state；
When the 5th switch element is in opening or off state, the signal end and output end of the 5th switch element are led
On-off is opened；
When the 6th switch element is in opening or during off state, the signal end of the 6th switch element and output
End is turned on or off.
9. display device according to claim 8, it is characterised in that
5th switch element and the 6th switch element are thin film transistor (TFT).
10. a kind of driving method of display device, it is characterised in that the display being applied to as described in any one of claim 6-9
Device, including：
Within the scan period of a frame, to grid line group each described in wherein one grid line progressively scan, including：Xiang Yi
Wherein one grid line input open signal in grid line group, makes pieces of data line and the public electrode wire be respectively communicated with the grid line
First electrode and second electrode in each sub-pixel unit of connection, with the pixel electricity formed to the first electrode and second electrode
Appearance is charged, at the end of the pixel capacitance charges, to the grid line input cut-off signals；
Within the scan period of next frame, to grid line group each described in another grid line progressively scan, including：Xiang Yi
Another grid line input open signal in grid line group, makes pieces of data line and the public electrode wire be respectively communicated with the grid line and connects
First electrode and second electrode in each sub-pixel unit for connecing, with the pixel capacitance formed to the first electrode and second electrode
Reverse charging is carried out, at the end of the pixel capacitance reverse charging, to the grid line input cut-off signals.
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| WO2021248566A1 (en) * | 2020-06-09 | 2021-12-16 | 武汉华星光电技术有限公司 | Pixel drive circuit and display panel |
| US11257456B2 (en) | 2020-06-09 | 2022-02-22 | Wuhan China Star Optoelectronics Technology Co., Ltd | Pixel driving circuit and display panel |
| CN112599106A (en) * | 2020-12-31 | 2021-04-02 | 绵阳惠科光电科技有限公司 | Display panel, driving method thereof and display device |
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