CN110322827A - A kind of digital driving method and display panel of display panel - Google Patents
A kind of digital driving method and display panel of display panel Download PDFInfo
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- CN110322827A CN110322827A CN201910754575.5A CN201910754575A CN110322827A CN 110322827 A CN110322827 A CN 110322827A CN 201910754575 A CN201910754575 A CN 201910754575A CN 110322827 A CN110322827 A CN 110322827A
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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
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
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- Theoretical Computer Science (AREA)
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Abstract
The embodiment of the invention discloses a kind of digital driving method of display panel and display panels, display panel includes sub-pixel, multi-strip scanning line and the multiple data lines of m row n column array arrangement, every scan line connects a line sub-pixel, every data line connects a column sub-pixel, wherein, m, n are the integer more than or equal to 1；The digital driving method of display panel includes: to each scan line while to provide scanning pulse signal, and provide the first data voltage simultaneously to each data line；The second data voltage is provided one by one to each data line, during providing the second data voltage to a data line, the scan line that is connected to the sub-pixel for needing to be written the second data voltage while providing scanning pulse signal, so that the sweep time of every row sub-pixel is unrelated with the line number of display panel sub-pixel, the sweep time of every row sub-pixel caused by avoiding existing display panel line number excessive, shorter bring showed abnormal problem.
Description
Technical field
The present embodiments relate to the digital driving methods and display of field of display technology more particularly to a kind of display panel
Panel.
Background technique
With the development of display technology, digital drive obtains more next because of the advantage that its picture noise is low, switch speed is fast
More it is widely applied.
However in existing digital drive scanning algorithm, the sweep time of every row sub-pixel is related to the line number of display panel,
For the display panel more for sub-pixel line number, the sweep time of every row sub-pixel is very short, causes display effect poor.
Summary of the invention
The present invention provides the digital driving method and display panel of a kind of display panel, so that the scanning duration of every row pixel
It is unrelated with display panel sub-pixel line number, improve display effect.
In a first aspect, display panel includes m row the embodiment of the invention provides a kind of digital driving method of display panel
Sub-pixel, multi-strip scanning line and the multiple data lines of n column array arrangement, every scan line connect a line sub-pixel, every data
Line connects a column sub-pixel, wherein m, n are the integer more than or equal to 1；The digital driving method of display panel includes:
Scanning pulse signal is provided simultaneously to each scan line, and provides the first data voltage simultaneously to each data line；
The second data voltage is provided one by one to each data line, during providing the second data voltage to a data line, to
It needs to be written the scan line that the sub-pixel of the second data voltage is connected while scanning pulse signal being provided.
Optionally, m > n+1.
Optionally, the first data voltage is illuminated state data voltage, and the second data voltage is black state data voltage.
Optionally, the first data voltage is black state data voltage, and the second data voltage is illuminated state data voltage.
Optionally, scanning pulse signal is provided simultaneously to each scan line, and the first data electricity is provided simultaneously to each data line
Pressure, comprising:
In the incipient stage of each subframe, scanning pulse signal is provided simultaneously to each scan line, and simultaneously to each data line
First data voltage is provided.
Optionally, each sub-pixel includes digital drive pixel circuit, wherein digital drive pixel circuit includes photophore
Part and the light emitting control module being electrically connected with luminescent device, provide the second data voltage to each data line one by one, to a number
According to the scan line during line the second data voltage of offer, connected to the sub-pixel for needing to be written the second data voltage while providing
Scanning pulse signal, comprising:
In any subframe, when providing the second data voltage one by one to each data line, each digital drive pixel circuit is controlled
In light emitting control module shutdown；
After providing the second data voltage to all data lines, further includes:
Control the light emitting control module conducting in each digital drive pixel circuit.
Optionally, in a subframe, the signal exported at least one scan line includes at least two scanning pulse signals.
Optionally, digital driving method includes first stage and second stage；
In the first stage, the scanning pulse signal provided to each scan line is all overlapping；
In second stage, exist to the scanning pulse signal that at least two scan lines provide overlapping.
Optionally, in second stage, into the scanning pulse signal of scan line offer including the scanning of different pulse widths
Pulse signal.
Second aspect, the embodiment of the invention also provides a kind of display panel, the display panel that is provided by first aspect
Driving method driving.
The embodiment of the invention provides the digital driving method of display panel and display panel, display panel includes m row n column
Sub-pixel, multi-strip scanning line and the multiple data lines of array arrangement, every scan line connect a line sub-pixel, and every data line connects
Connect a column sub-pixel, wherein m, n are the integer more than or equal to 1；The digital driving method of display panel includes: to respectively sweeping
It retouches line while scanning pulse signal being provided, and provide the first data voltage simultaneously to each data line；It is provided one by one to each data line
Second data voltage, during providing the second data voltage to a data line, to the sub- picture for needing to be written the second data voltage
The scan line that is connected of element while scanning pulse signal is provided, so that the sweep time of every row sub-pixel and display panel neutron picture
The line number of element is unrelated, and the sweep time shorter bring of every row sub-pixel caused by avoiding existing display panel line number excessive is shown
Abnormal problem.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is a kind of flow chart of the digital driving method of display panel provided in an embodiment of the present invention；
Fig. 3 is a kind of working timing figure of display panel digital driving provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of pixel circuit provided in an embodiment of the present invention；
Fig. 5 is the flow chart of the digital driving method of another display panel provided in an embodiment of the present invention；
Fig. 6 is the flow chart of the digital driving method of another display panel provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
As described in the background art, in existing digital drive scanning algorithm, the sweep time of every row pixel and display surface
The line number of plate is related, therefore for the display panel more for line number, there are the sweep time of every row pixel is very short, causes to show
Show the poor problem of effect.Through inventor the study found that the reasons for the above problems are, existing digital drive scanning algorithm
It is usually all after scanning a line sub-pixel, then to scan next line sub-pixel by the way of progressive scan.Such as existing
One frame is usually divided into multiple subframes by subfield scanning method, will be to all sub-pixels in display panel in each subframe
Single pass is carried out line by line, therefore, the time for scanning every row sub-pixel is very short, and when scanning sub-pixel, it will usually Xiang Zi
Corresponding data voltage is written in pixel, so that the time that data voltage is written into sub-pixel is very short, causes data
The write time of voltage is insufficient, causes grayscale display abnormal completely so that data voltage can not be written, display effect is poor.
For these reasons, the embodiment of the invention provides a kind of digital driving method of display panel, Fig. 1 is the present invention
A kind of structural schematic diagram for display panel that embodiment provides, Fig. 2 is a kind of number of display panel provided in an embodiment of the present invention
The flow chart of word drive method, Fig. 3 are a kind of working timing figure of display panel digital driving provided in an embodiment of the present invention, ginseng
Examine Fig. 1, Fig. 2 and Fig. 3, display panel include the sub-pixel 110 of m row n column array arrangement, multi-strip scanning line (S1, S2, S3,
S4 ...) and multiple data lines (D1, D2, D3, D4 ...), every scan line connects a line sub-pixel, every data line connection
One column sub-pixel, wherein m, n are the integer more than or equal to 1；The digital driving method of display panel includes:
Step 210 provides scanning pulse signal simultaneously to each scan line, and provides the first data electricity simultaneously to each data line
Pressure；
It continues to refer to figure 1, display panel can also include scan drive circuit 120, data drive circuit 130, at data
Manage device 140 and sequence controller 150.The data flow of display enters data processor 140, and sequence controller 150 controls sweep respectively
Retouch the driver' s timing of driving circuit 120 and data drive circuit 130.Specifically, driving display panel using digital driving method
When, the data voltage provided to data line usually only includes black state data voltage and illuminated state data voltage, black state data voltage and
Illuminated state data voltage can be definite value.In the digital driving method of the display panel, it is multiple a frame can be shown that picture is divided into
Subframe, it may include data in each subframe that the driver' s timing in two subframes is schematically shown in Fig. 3 with reference to Fig. 3
Write phase t1 and driving light emitting phase t2, wherein the driving light emitting phase t2 time can be different in different subframes in a frame,
Illustratively, when a frame being divided into four subframes, the ratio between the time of the driving light emitting phase of four subframes can be 1:2:4:8.
Wherein, if in a subframe, sub-pixel 110 is eventually written black state data voltage in data write phase, then sub-pixel 110 exists
The driving light emitting phase of the subframe does not shine；If sub-pixel 110 is eventually written illuminated state in data write phase in a subframe
Data voltage, then sub-pixel 110 shines in the driving light emitting phase of the subframe, through control sub-pixel 110 in different subframes
Whether shine to control luminous duration of the sub-pixel 110 in a frame and (it is defeated to sub-pixel 110 in different subframes pass through control
Enter different data voltages), realize the display of different grayscale.Wherein, the first data voltage can be black state data voltage, can also
To be illuminated state data voltage.
Scanning pulse signal can be used to control the write-in of data voltage, and Fig. 4 is a kind of picture provided in an embodiment of the present invention
The structural schematic diagram of plain circuit, with reference to Fig. 4, which includes the first transistor T1, second transistor T2, third transistor
T3, storage capacitance Cst, data voltage input terminal Vdata, luminescent device D1, scanning signal input terminal Scan and light emitting control letter
Number input terminal EM, the first power voltage input terminal VDD and second source voltage input end VSS.Wherein, scanning signal input terminal
Scan can connect scan line, and data voltage input terminal Vdata can connect data line.With reference to Fig. 4, scanning pulse signal is used to control
The conducting of the first transistor T1, so that the data voltage on data line can pass through first in the first transistor T1 conducting
Transistor T1 is written to the grid of second transistor T2, driving transistor of the second transistor T2 as the pixel circuit.It needs
Illustrate, digital driving method provided in this embodiment, be not only applicable to include pixel circuit shown in Fig. 4 display panel,
The display panel of pixel circuit shown in Fig. 4 is only intended to illustrate that scanning pulse signal can be used for controlling whether data voltage can be write
Enter into sub-pixel 110.
After providing scanning pulse signal to scan line, data voltage can be written into the sub-pixel being electrically connected with the scan line
In 110；If not providing scanning pulse signal to scan line, be written in the sub-pixel 110 that no normal direction is electrically connected with the scan line
Data voltage.Specifically, full frame data-signal Data includes two voltages with reference to Fig. 3, wherein low level can represent the first number
According to voltage.In this step, scanning pulse signal is provided simultaneously to each scan line, i.e., simultaneously to all row pixels in display panel
It is scanned, and provides the first data voltage simultaneously to data line, so that each sub-pixel 110 in display panel is write simultaneously
Enter the first data voltage.Wherein, Scan1, Scan2, Scan3, Scan4, Scan5, Scan6, Scan7 ... Scanm can in Fig. 3
The scanning signal inputted to the 1st, 2,3,4,5,6,7 ... m row sub-pixels is respectively represented, with reference to Fig. 3, scanning pulse signal can be with
It is low level pulse signal, then stage represented by t11 in step 210 corresponding diagram in Fig. 2, at this stage, to all row pictures
Element 110 is scanned simultaneously, and completes the write-in of the first data voltage.
Step 220 provides the second data voltage to each data line one by one, is providing the second data voltage to a data line
Period, the scan line connected to the sub-pixel for needing to be written the second data voltage while providing scanning pulse signal.
Specifically, different subpixel 110 needs the data voltage being written that may be different in a subframe, therefore,
First data voltage is written to after each sub-pixel 110 in step 210, is needed to the second data electricity corresponding in display panel
The sub-pixel 110 of pressure re-starts the write-in of data voltage, and specific writing mode can be by column into display panel corresponding the
The second data voltage is written in the sub-pixel 110 of two data voltages.When carrying out the write-in of the second data voltage, mentioned one by one to each data line
For the second data voltage, and during providing the second data voltage to a data line, to needing to be written the second data voltage
Scan line that sub-pixel 110 is connected while scanning pulse signal is provided, so that the sub-pixel 110 being electrically connected with the data line
In, the sub-pixel 110 for needing to be written the second data voltage is opened, and guarantees that data voltage can be written into, without Xiang Yuxu
The scan line that the sub-pixel 110 of the first data voltage connects is written, scanning pulse signal is provided, so that needing to be written the
The sub-pixel 110 of one data voltage keeps the first data voltage having been written into step 210.Referring to figs. 2 and 3, Fig. 2
Middle step 220 can the stage corresponding to the t12 in corresponding diagram 3, with reference to Fig. 1 and Fig. 3, with first three columns sub-pixel in display panel
It is illustrated for 110, illustratively, does not need to be written the sub-pixel of the second data voltage in first row sub-pixel 110
110, be located in secondary series sub-pixel 110 the first row, the third line, the 7th row sub-pixel 110 need to be written the second data voltage,
Sub-pixel 110 in third column sub-pixel 110 positioned at the first row, the second row, fourth line, m row needs to be written the second data electricity
Pressure；Then when providing the second data voltage to the first row sub-pixel r1 being electrically connected with the first data line D1, to each scan line
Scanning pulse signal is not provided；The second data electricity is being provided to the secondary series sub-pixel r2 being electrically connected with Article 2 data line D2
When pressure, scanning pulse signal is provided simultaneously to the scan line being electrically connected with the first row, the third line, the 7th row sub-pixel 110, second
Data voltage be written in secondary series sub-pixel 110 be located at the first row, the third line, the 7th row sub-pixel 110 in；In Xiang Yu
Three data line D3 electrical connection third column sub-pixel r3 provide the second data voltage when, to the first row, the second row, the 4th
The scan line that row, m row sub-pixel 110 are electrically connected provides scanning pulse signal, and the second data voltage is written to secondary series picture
Element 110 in be located at the first row, the second row, fourth line, m row sub-pixel 110 in.From it is different in the prior art, in this step,
The mode to the progressive scan of sub-pixel 110 (after the completion of a line sub-pixel 110 scans, scanning next line sub-pixel 110) is not used,
But during providing the second data voltage to a data line, to being needed in the sub-pixel 110 being electrically connected with the data line
The sub-pixel 110 that the second data voltage is written is expert at while being scanned, therefore, to the sweep time of every row sub-pixel 110
It is unrelated with the line number of display panel sub-pixel 110, and with the columns of display panel sub-pixel 110 and every row sub-pixel
The number of the sub-pixel 110 of corresponding second data voltage is related in 110.Sweep time and sub- picture due to every row sub-pixel 110
Element 110 line number it is unrelated, and then be not in because 110 line number of display panel sub-pixel it is more caused by every row sub-pixel 110
Sweep time too short problem, sweep time of every row sub-pixel 110 caused by avoiding existing display panel line number excessive compared with
Short bring display is abnormal.
The digital driving method of display panel provided in an embodiment of the present invention, by providing scanning arteries and veins simultaneously to each scan line
Signal is rushed, and provides the first data voltage simultaneously to each data line；The second data voltage is provided one by one to each data line,
During providing second data voltage to a data line, to the sub-pixel institute for needing to be written the second data voltage
The scan line of connection provides scanning pulse signal simultaneously, so that the sweep time of every row sub-pixel and display panel neutron picture
The line number of element is unrelated, and the sweep time shorter bring of every row sub-pixel caused by avoiding existing display panel line number excessive is shown
Abnormal problem.
Based on the above technical solution, optionally, m > n+1.
Specifically, existing display panel, especially mobile phone, usually vertical screen display panel, vertical screen display panel neutron picture
The line number m of element 110 is typically much deeper than the columns n of sub-pixel 110.In vertical screen display panel, 110 line number of sub-pixel excessively causes to show
Show that abnormal problem is particularly acute.In the embodiment of the present invention, by providing scanning pulse signal simultaneously to each scan line, and to each
Data line provides the first data voltage simultaneously, realizes that into all display panels, write-in first is several simultaneously in all sub-pixels 110
According to voltage；By providing the second data voltage one by one to each data line, during providing the second data voltage to a data line,
The scan line that is connected to the sub-pixel 110 for needing to be written the second data voltage while scanning pulse signal is provided, can extended
To the data voltage write time of each sub-pixel 110.Illustratively, in a subframe, to sub-pixels all in display panel
110 total scanning time is T, then when using convention scanning scheme, sweep time (each scanning pulse of every row sub-pixel 110
The width of the signal corresponding time) it is then T/m, and when use tradition scanning algorithm, the data voltage of a line sub-pixel 110 is usual
It is written simultaneously, then the time of data voltage is written as T/m in each sub-pixel 110.And it uses provided in an embodiment of the present invention
When digital drive scanning algorithm, the width of each scanning pulse signal corresponding time is T/n+1, each scanning pulse signal
The width corresponding time is equal to the time that data voltage is written in a sub-pixel 110.Due to m>n+1, then T/m<T/n+1, therefore this
The digital driving method that embodiment provides, can make the width of single scanning pulse signal broaden, correspondingly, scanning every row
The sweep time of pixel 110 is elongated, so that the time that data voltage is written into sub-pixel 110 is elongated, so that each sub- picture
Plain 110 corresponding data voltages can be sufficiently written, and each sub-pixel 110 can be allowed normally to show grayscale, be improved aobvious
Show effect.
Based on the above technical solution, optionally, the first data voltage is illuminated state data voltage, the second data voltage
For black state data voltage.
As described above, in digital driving method, the data voltage being written into sub-pixel 110 usually only includes illuminated state number
According to voltage and black state data voltage.Scanning pulse signal is provided simultaneously to each scan line, and provides illuminated state simultaneously to each data line
Data voltage is written into illuminated state data voltage when so that all sub-pixels 110 are initial in display panel, and in certain sub-pixels
When 110 corresponding data voltages are black state data voltage, by providing black state data voltage to data line one by one, and to one
During data line provides black state data voltage, to needing to be written black state data in the sub-pixel 110 being electrically connected with the data line
Row is scanned where the sub-pixel 110 of voltage；And then per horizontal-scanning interval and display panel sub-pixel may be implemented
110 line number is unrelated, the sweep time shorter bring of every row sub-pixel 110 caused by avoiding existing display panel line number excessive
Show abnormal problem.
Optionally, the first data voltage is black state data voltage, and the second data voltage is illuminated state data voltage.
Specifically, providing scanning pulse signal simultaneously to each scan line, and provide illuminated state data electricity simultaneously to each data line
Pressure is written into black state data voltage when so that all sub-pixels 110 are initial in display panel, and corresponding in certain sub-pixels 110
Data voltage when being illuminated state data voltage, by providing illuminated state data voltage to data line one by one, and to a data line
During providing black state data voltage, to needing to be written illuminated state data voltage in the sub-pixel 110 being electrically connected with the data line
Row is scanned where sub-pixel 110；And then the row of per horizontal-scanning interval Yu display panel sub-pixel 110 may be implemented
Number is unrelated, and the sweep time shorter bring of every row sub-pixel 110 caused by avoiding existing display panel line number excessive shows different
Chang Wenti.
Fig. 5 is the flow chart of the digital driving method of another display panel provided in an embodiment of the present invention, with reference to Fig. 5,
The digital driving method includes:
Step 310, in the incipient stage of each subframe, provide scanning pulse signal simultaneously to each scan line, and to each number
The first data voltage is provided simultaneously according to line；
Optionally, the incipient stage of each subframe, at the time of can be entrance each subframe；I.e. after entering a subframe,
Scanning pulse signal is provided simultaneously to each scan line immediately, and provides the first data voltage simultaneously to data line, therefore can be abundant
Using the time of each subframe, so that the write-in of subsequent second data voltage can also have the sufficient time, so that data
Voltage can be sufficiently written in sub-pixel 110, guarantee good display effect.
Step 320 provides the second data voltage to each data line one by one, is providing the second data voltage to a data line
Period, the scan line connected to the sub-pixel for needing to be written the second data voltage while providing scanning pulse signal.
Based on the above technical solution, optionally, each sub-pixel 110 includes digital drive pixel circuit, wherein
With reference to Fig. 3, digital drive pixel circuit includes luminescent device D1 and the light emitting control module 410 being electrically connected with luminescent device D1,
Wherein, third transistor T3 is as light emitting control module 410；
Fig. 6 is the flow chart of the digital driving method of another display panel provided in an embodiment of the present invention, with reference to Fig. 6,
The digital driving method includes:
Step 510 provides scanning pulse signal simultaneously to each scan line, and provides the first data electricity simultaneously to each data line
Pressure；
Step 520 provides the second data voltage to each data line one by one, is providing the second data voltage to a data line
Period, the scan line connected to the sub-pixel for needing to be written the second data voltage while providing scanning pulse signal；Any
In subframe, when providing the second data voltage one by one to each data line, shining in each number of sub-pixels word drive pixel circuit is controlled
Control module shutdown；
Step 530, to all data lines provide the second data voltage after, control the hair in each digital drive pixel circuit
The conducting of photocontrol module.
Specifically, by taking third transistor T3 is P-type transistor as an example, being provided one by one to each data line with reference to Fig. 3 and Fig. 4
When the second data voltage, LED control signal input terminal EM input high level, and then control each 110 digital drive pixel of sub-pixel
Light emitting control module shutdown in circuit, it is ensured that when the second data voltage is written to each sub-pixel 110, each sub-pixel
110 do not shine, after providing the second data voltage to all data lines, LED control signal input terminal EM input low level, into
And the conducting of the light emitting control module in each digital drive pixel circuit is controlled, each sub-pixel 110 in display panel can be made right
After the data voltage answered all is written into, the sub-pixel 110 of the corresponding illuminated state data voltage of full frame sub-pixel 110 shines together, in turn
The convenient control to each fluorescent lifetime in subframe of sub-pixel 110, and then can guarantee the normal display of grayscale, be conducive to be promoted
Display effect.
It should be noted that providing scanning pulse signal simultaneously to each scan line, and the is provided to each data line simultaneously
During one data voltage, the shutdown of light emitting control module also can control, avoid carrying out luminescent device D1 when the write-in of the first data voltage
The influence to shine to display effect.
With continued reference to Fig. 3, based on the above technical solution, the driving method of display panel further include:
In a subframe, the signal exported at least one scan line includes at least two scanning pulse signals.
Specifically, the number of the scanning pulse signal exported to a scan line is decided by and the scanning in a subframe
Need to be written the number of the sub-pixel 110 of the second data voltage in 110 row of sub-pixel of line electrical connection.In a subframe, to extremely
The signal of few scan line output includes at least two scanning pulse signals, then can be at least a line sub-pixel 110
The second data voltage is written in two sub-pixels 110.Also, the signal exported at least one scan line includes at least two scannings
Pulse signal, so that it is relatively longer to the sweep time of a line sub-pixel 110, it is more conducive to sufficiently writing for the second data voltage
Enter, guarantees good display effect.
With continued reference to Fig. 3, based on the above technical solution, optionally, digital driving method includes first stage t11
With second stage t12；
T11 in the first stage, the scanning pulse signal provided to each scan line are all overlapping；
In second stage t12, exist to the scanning pulse signal that at least two scan lines provide overlapping.
Specifically, in the first stage, providing scanning pulse signal, the scanning arteries and veins that each scan line provides simultaneously to each scan line
It is all overlapping to rush signal.Because in a subframe, the corresponding data voltage of the sub-pixel that do not go together in same row may all be the
Two data voltages need the sub-pixel for being located at corresponding second data voltage into same row while providing scanning in such cases
Pulse signal, then the scanning pulse signal provided at least two scan lines exist it is overlapping, and then guarantee the second data voltage to
Being normally written at least two sub-pixels 110 in same row guarantees display effect.
With continued reference to Fig. 3, based on the above technical solution, optionally, in second stage t12, provided to scan line
Scanning pulse signal in include different pulse widths scanning pulse signal.
Specifically, with the sub-pixel of adjacent column in a line, corresponding data voltage may all be under certain display pictures
Second data voltage for certain row pixels, needs continuously to mention then when providing the second data voltage to data line one by one
For two or more scanning pulse signal, so that the superimposed width of multiple scanning pulse signals broadens, so as to scanning
It include the scanning pulse signal of different pulse widths in the scanning pulse signal that line provides.Therefore, the scanning provided to scan line
It include the scanning pulse signal of different pulse widths in pulse signal, it is ensured that the corresponding data with adjacent subpixels in a line
When voltage is all the second data voltage, the second data voltage can be normally written into, and guarantee good display effect.
The embodiment of the invention also provides a kind of display panel, the structural schematic diagram of display panel can be found in Fig. 1, the display
The driving method of the display panel that panel is provided by any embodiment of that present invention drives.Display surface provided in an embodiment of the present invention
Plate is driven by the driving method of the display panel of any embodiment of that present invention offer, is swept by providing simultaneously to each scan line
Pulse signal is retouched, and provides the first data voltage simultaneously to each data line；The second data electricity is provided one by one to each data line
Pressure, during providing second data voltage to a data line, to the son for needing to be written the second data voltage
The scan line that pixel is connected while scanning pulse signal is provided, so that the sweep time of every row sub-pixel and display panel
The line number of sub-pixel is unrelated, and the sweep time of every row sub-pixel caused by avoiding existing display panel line number excessive comes compared with short strip
Display abnormal problem.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out by above embodiments to the present invention
It is described in further detail, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, also
It may include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of digital driving method of display panel, which is characterized in that the display panel includes that m row n column array is arranged
Sub-pixel, multi-strip scanning line and multiple data lines, every scan line connect sub-pixel described in a line, every data line
The one column sub-pixel of connection, wherein m, n are the integer more than or equal to 1；The digital driving method packet of the display panel
It includes:
Scanning pulse signal is provided simultaneously to each scan line, and provides the first data voltage simultaneously to each data line；
The second data voltage is provided one by one to each data line, is providing second data voltage to a data line
Period, the scan line connected to the sub-pixel for needing to be written the second data voltage and meanwhile provide scanning pulse letter
Number.
2. the digital driving method of display panel according to claim 1, which is characterized in that m > n+1.
3. the digital driving method of display panel according to claim 1, which is characterized in that first data voltage is
Illuminated state data voltage, second data voltage are black state data voltage.
4. the digital driving method of display panel according to claim 1, which is characterized in that first data voltage is
Black state data voltage, second data voltage are illuminated state data voltage.
5. the digital driving method of display panel according to claim 1, which is characterized in that described to each scan line
Scanning pulse signal is provided simultaneously, and provides the first data voltage simultaneously to each data line, comprising:
In the incipient stage of each subframe, scanning pulse signal is provided simultaneously to each scan line, and to each data line
First data voltage is provided simultaneously.
6. the digital driving method of display panel according to claim 1, which is characterized in that each sub-pixel includes number
Drive pixel circuit, wherein the luminous control that the digital drive pixel circuit includes luminescent device and is electrically connected with luminescent device
Molding block, it is described to provide the second data voltage one by one to each data line, described second is being provided to a data line
During data voltage, the scan line that is connected to the sub-pixel for needing to be written the second data voltage while scanning is provided
Pulse signal, comprising:
In any subframe, when providing the second data voltage one by one to each data line, each digital drive pixel is controlled
Light emitting control module shutdown in circuit；
After providing the second data voltage to all data lines, further includes:
Control the light emitting control module conducting in each digital drive pixel circuit.
7. the digital driving method of display panel according to claim 1, which is characterized in that in a subframe, at least
The signal of the one scan line output includes at least two scanning pulse signals.
8. the digital driving method of display panel according to claim 1, which is characterized in that including first stage and second
Stage；
In the first stage, the scanning pulse signal provided to each scan line is all overlapping；
In the second stage, the scanning pulse signal provided at least two scan lines exists overlapping.
9. the digital driving method of display panel according to claim 8, which is characterized in that in the second stage, to
It include the scanning pulse signal of different pulse widths in the scanning pulse signal that the scan line provides.
10. a kind of display panel, which is characterized in that driven by the driving method of the described in any item display panels of claim 1-9
It is dynamic.
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| KR1020227003627A KR102648334B1 (en) | 2019-08-15 | 2020-05-26 | Digital driving method and display panel of display panel |
| PCT/CN2020/092393 WO2021027358A1 (en) | 2019-08-15 | 2020-05-26 | Digital driving method for display panel and display panel |
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| Publication number | Publication date |
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| WO2021027358A1 (en) | 2021-02-18 |
| CN110322827B (en) | 2022-05-10 |
| KR20220025082A (en) | 2022-03-03 |
| KR102648334B1 (en) | 2024-03-15 |
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