CN109741701A - Display panel and its driving method, display device - Google Patents
Display panel and its driving method, display device Download PDFInfo
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Abstract
The invention discloses a kind of display panel and its driving methods, display device, belong to field of display technology, wherein display panel includes: a plurality of grid line, multiple data lines, multiple sub-pixels；For being electrically connected with same data line and successively close to for any two sub-pixel for receiving data-signal, the sub-pixel for first receiving data-signal is the first sub-pixel, the rear sub-pixel for receiving data-signal is the second sub-pixel；Driving method includes: the second original gray-scale signal for obtaining the second sub-pixel, the first original gray-scale signal of the first sub-pixel；Compare the second original gray-scale signal and the first original gray-scale signal to obtain correction value；Correction value is plus the second original gray-scale signal to obtain the second amendment grayscale signal；Second amendment grayscale signal is converted into the second amendment data-signal；The second amendment data-signal is supplied to the second sub-pixel by data line.Compared with the existing technology, sub-pixel undercharge phenomenon can be improved, improve display quality.
Description
Technical field
The present invention relates to field of display technology, fill more particularly, to a kind of display panel and its driving method, display
It sets.
Background technique
With the development of electronic technology, display panel manufacture also tends to be mature, and existing display panel mainly includes liquid crystal
Display panel, organic light emitting display panel, Plasmia indicating panel etc..In order to promote display quality, that improves user uses body
It tests, the narrow frame of display panel has become trend.
In a kind of display panel that the prior art provides, the narrow frame of display panel is realized using double-gate structure.Its
In, in the display panel of double-gate structure, a line sub-pixel is controlled using two grid lines, relative to a grid line traffic control one
The conventional display panels of row sub-pixel, the doubles of grid line in the display panel of double-gate structure.Relative to conventional display surface
Plate, under equal resolution and refreshing frequency, the charging time of every row halves double-gate structure display panel.In practical applications,
Since the time of grid line traffic control sub-pixel charging is shorter, it may appear that the phenomenon that sub-pixel undercharge, lead to the bright of sub-pixel
Degree cannot accurately be shown.When the resolution ratio of display panel is higher, the phenomenon that undercharge, is more obvious, seriously reduces display
The display quality of panel.
Summary of the invention
In view of this, the present invention provides a kind of display panel and its driving methods, display device, to solve the prior art
The problem of proposition.
On the one hand, the present invention provides a kind of driving method of display panel, display panel includes: a plurality of grid line, more
Data line, multiple sub-pixels；For being electrically connected with same data line and successively close to any the two of reception data-signal
For a sub-pixel, the sub-pixel for first receiving data-signal is the first sub-pixel, the rear sub-pixel for receiving data-signal is second
Sub-pixel；
Driving method includes: the second original gray-scale signal for obtaining the second sub-pixel；Obtain the first sub-pixel first is former
Beginning grayscale signal；Compare the second original gray-scale signal and the first original gray-scale signal to obtain correction value；Correction value adds second
Original gray-scale signal is to obtain the second amendment grayscale signal；Second amendment grayscale signal is converted into the second amendment data-signal；
The second amendment data-signal is supplied to the second sub-pixel by data line.
On the other hand, the present invention also provides a kind of display panels, comprising: a plurality of grid line, multiple data lines, Duo Gezi
Pixel；For with same data line be electrically connected and successively close to receive data-signal any two sub-pixel for, first
The sub-pixel for receiving data-signal is the first sub-pixel, the rear sub-pixel for receiving data-signal is the second sub-pixel；Correct circuit；
Correcting circuit includes: the first memory module, logic module, the second memory module, analog module；First memory module and logic mould
Block electrical connection, logic module and the second memory module electrical connection, the second memory module and analog module electrical connection, analog module and
Data line electrical connection；First memory module is for storing correction value look-up table；Logic module is used to obtain the of the second sub-pixel
Two original gray-scale signals obtain the first original gray-scale signal of the first sub-pixel from the second memory module, compare the second original ash
Rank signal and the first original gray-scale signal, obtain correction value from the first memory module；And correction value is added into the second original ash
Rank signal is to obtain the second amendment grayscale signal；Second amendment grayscale signal is converted to the second amendment data letter by analog module
Number；Data line is used to the second amendment data-signal being supplied to the second sub-pixel.
Another aspect, the present invention also provides a kind of display device, including display panel, the display panel applications present invention is mentioned
The driving method of confession drive.
Another aspect, the present invention also provides a kind of display devices, including display panel provided by the invention.
Compared with prior art, display panel and its driving method provided by the invention, display device, at least realize as
Under the utility model has the advantages that
The electric signal of data line is compensated, to solve the problems, such as that the prior art proposes.Specifically, obtaining respectively
The second original gray-scale signal of the second sub-pixel, the first original gray-scale signal of the first sub-pixel are taken, it is original then to compare second
Grayscale signal and the first original gray-scale signal are to obtain correction value.Correction value is repaired plus the second original gray-scale signal with obtaining second
Positive grayscale signal, the second amendment grayscale signal is digital signal, needs to be converted to the second amendment data-signal of analog signal, and
The second amendment data-signal is supplied to by the second sub-pixel by data line afterwards.When the quantity of grid line in display panel is more
When, when refreshing display panel, the charging time of every grid line is shorter, can be with using driving method provided in this embodiment
Make the charging rate of data line faster, compared with the existing technology, brightness is inaccurate caused by can improving sub-pixel undercharge
True phenomenon, can effectively promote the brightness accuracy of sub-pixel, to improve the display quality of display panel.
Certainly, implementing any of the products of the present invention specific needs while need not reach all the above technical effect.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is the flow diagram of the driving method of display panel provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the corresponding display panel of driving method shown in FIG. 1；
Fig. 3 is a kind of V-T curve schematic diagram of data line；
Fig. 4 is the V-T curve schematic diagram of another data line；
Fig. 5 is a kind of schematic diagram of correction value look-up table provided in an embodiment of the present invention；
Fig. 6 is the V-T curve schematic diagram of another data line；
Fig. 7 is the V-T curve schematic diagram of another data line；
Fig. 8 is a kind of planar structure schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram that circuit is corrected in display panel shown in Fig. 8；
Figure 10 is another structural schematic diagram that circuit is corrected in display panel shown in Fig. 8；
Figure 11 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, Fig. 1 is the stream of the driving method of display panel provided in an embodiment of the present invention
Journey schematic diagram；Fig. 2 is the structural schematic diagram of the corresponding display panel of driving method shown in FIG. 1；Fig. 3 is a kind of V- of data line
T curve schematic diagram；Fig. 4 is the V-T curve schematic diagram of another data line；
Present embodiments provide a kind of driving method of display panel, wherein display panel includes:
A plurality of gate lines G L, multiple data lines DL, multiple sub-pixel SP；
For being electrically connected with same data line DL and successively close to any two sub-pixel SP for receiving data-signal
For, the sub-pixel SP for first receiving data-signal is the first sub-pixel SP1, the rear sub-pixel SP for receiving data-signal is the second son
Pixel SP2；
Driving method includes:
Step S10: the second original gray-scale signal of the second sub-pixel SP2 is obtained；
Step S20: the first original gray-scale signal of the first sub-pixel SP1 is obtained；
Step S30: compare the second original gray-scale signal and the first original gray-scale signal to obtain correction value；
Step S40: correction value is plus the second original gray-scale signal to obtain the second amendment grayscale signal；
Step S50: the second amendment grayscale signal is converted into the second amendment data-signal；
Step S60: the second amendment data-signal is supplied to by the second sub-pixel SP2 by data line DL.
Driving method provided in this embodiment is for driving display panel, wherein and display panel can be double-gate structure,
This can be not specifically limited for conventional structure, the present embodiment.Display panel shown in Fig. 2, only with the aobvious of double-gate structure
Show that panel illustratively illustrates the present embodiment, should not cause for concrete restriction of the invention.
Specifically, display panel includes a plurality of gate lines G L, multiple data lines DL and multiple sub-pixel SP.Wherein, grid
Polar curve GL and sub-pixel SP electrical connection, the time for receiving the data-signal of data line DL for controlling sub-pixel SP.Optionally, more
Gate lines G L, multiple data lines DL and multiple sub-pixel SP are arranged in the AA of viewing area, and display panel further includes non-aobvious
Show that area NA, non-display area NA are arranged around viewing area AA.
First sub-pixel SP1 and the second sub-pixel SP2 and same data line DL electrical connection, as, a data line DL
Timesharing provides data-signal to the first sub-pixel SP1 and the second sub-pixel SP2 respectively.Wherein, the first sub-pixel SP1 and second
Sub-pixel SP2 successively close to receive data-signal refer to, data line DL to the first sub-pixel SP1 provide data-signal after, immediately
To the second sub-pixel SP2 provide data-signal.Data-signal is provided to the first sub-pixel SP1 and is mentioned to the second sub-pixel SP2
Be carried out continuously for data-signal, between will not to other sub-pixels provide data-signal.
It should be noted that the original gray-scale signal of sub-pixel is digital signal, digital signal can not be supplied directly to son
Pixel needs to convert data-signal to corresponding analog signal, the data-signal as provided by data line to sub-pixel
For analog signal.
Referring to Figure 3, carrying out example for driving method provided in this embodiment in Fig. 3 only by taking V2 > V1 as an example
The explanation of property.Fig. 3 illustrates the V-T curve of data line, wherein V represents the voltage of data line, and T represents the time.Dotted line signal
Y1 curve is V-T curve when driving method provided in this embodiment is not used, and the X1 curve of solid line signal is to have used this reality
The V-T curve when driving method of example offer is provided.
Specifically, needing and then after data line DL provides data-signal V1 to the first sub-pixel SP1 to the second sub- picture
Plain SP2 provides data-signal V2.Fig. 3 illustrates the V-T curve of data line, and due to V2 > V1, the electric signal of data line is from V1 liter
Up to V2 needs the regular hour.Every row shows that time TL is the time of the received scanning signal of grid line of the row,
The as time of grid line traffic control sub-pixel reception data-signal.When every row shows that time TL is shorter, if not using this
The driving method that embodiment provides compensates the electric signal of data line, and the V-T curve of data line such as Y1 curve is illustrated,
At the end of every row shows time TL, data line not yet charges to the data-signal V2 of the second sub-pixel SP2, and data line is at this time
Electric signal is less than V2, and corresponding second sub-pixel can not charge to V2 voltage, cause pixel voltage lower, thus the second sub-pixel
Brightness inaccuracy.
And after having used driving method provided in this embodiment, the V-T curve of data line such as X1 curve is illustrated, this implementation
The electric signal of data line is compensated in example, specifically, comparing the second original gray-scale signal and the first original gray-scale letter
Number to obtain correction value, correction value plus the second original gray-scale signal to obtain the second amendment grayscale signal, by the second amendment ash
Rank signal is converted to the second amendment data-signal.In the present embodiment, the data-signal of data line is compensated, correction value
For digital signal, as amendment voltage Δ V is converted into after analog signal.The electric signal that data line is provided to the second sub-pixel is the
Two amendment data-signals, the second amendment data-signal are higher than the data-signal V2 of the second sub-pixel, and as, X1 curve is relative to Y1
Curve more " precipitous " is some, as the charging rate of data line faster, every row show time TL at the end of, data line
The data-signal V2 of the second sub-pixel SP2 is charged to, at this point, control of second sub-pixel in the scanning signal of corresponding grid line
The lower electric signal for stopping receiving data line, the data-signal of the second sub-pixel can charge to V2 voltage.
Referring to Figure 4, carrying out example for driving method provided in this embodiment in Fig. 4 only by taking V2 < V1 as an example
The explanation of property.Fig. 4 illustrates the V-T curve of data line, and the Y2 curve of dotted line signal is that driving provided in this embodiment is not used
V-T curve when method, the X2 curve of solid line signal are V-T curves when having used driving method provided in this embodiment.
Specifically, needing and then after data line DL provides data-signal V1 to the first sub-pixel SP1 to the second sub- picture
Plain SP2 provides data-signal V2.Fig. 4 illustrates the V-T curve of data line, and due to V2 < V1, the electric signal of data line is dropped from V1
The regular hour is needed down to V2.Every row shows that time TL is the time of the received scanning signal of grid line of the row,
The as time of grid line traffic control sub-pixel reception data-signal.When every row shows that time TL is shorter, if not using this
The driving method that embodiment provides compensates the electric signal of data line, and the V-T curve of data line such as Y2 curve is illustrated,
At the end of every row shows time TL, data line not yet charges to the data-signal V2 of the second sub-pixel SP2, and data line is at this time
Electric signal is higher than V2, and corresponding second sub-pixel can not charge to V2 voltage, cause pixel voltage higher, thus the second sub-pixel
Brightness inaccuracy.
And after having used driving method provided in this embodiment, the V-T curve of data line such as X2 curve is illustrated, this implementation
The electric signal of data line is compensated in example, specifically, comparing the second original gray-scale signal and the first original gray-scale letter
Number to obtain correction value, correction value plus the second original gray-scale signal to obtain the second amendment grayscale signal, by the second amendment ash
Rank signal is converted to the second amendment data-signal.In the present embodiment, the data-signal of data line is compensated, correction value
For digital signal, as amendment voltage Δ V is converted into after analog signal.The electric signal that data line is provided to the second sub-pixel is the
Two amendment data-signals, the second amendment data-signal are higher than the data-signal V2 of the second sub-pixel, and as, X2 curve is relative to Y2
Curve more " precipitous " is some, as the charging rate of data line faster, every row show time TL at the end of, data line
The data-signal V2 of the second sub-pixel SP2 is charged to, at this point, control of second sub-pixel in the scanning signal of corresponding grid line
The lower electric signal for stopping receiving data line, the data-signal of the second sub-pixel can charge to V2 voltage.
It should be noted that the sequence of step S10 and step S20 can be interchanged in driving method provided in this embodiment.
Correction value is configured according to the original gray-scale signal of the first sub-pixel SP1 and the second sub-pixel SP2, for example, when the first sub- picture
When the original gray-scale signal of plain SP1 and the second sub-pixel SP2 difference are bigger, the absolute value of correction value is bigger.Correction value it is specific
Numerical value can also be configured according to the actual conditions of display panel, for example, being set according to the charging time of every grid line
Fixed, this implementation is not specifically limited the specific value of correction value.
Driving method provided in this embodiment, at least realize it is following the utility model has the advantages that
The electric signal of data line is compensated, to solve the problems, such as that the prior art proposes.Specifically, obtaining respectively
The second original gray-scale signal of the second sub-pixel SP2, the first original gray-scale signal of the first sub-pixel SP1 are taken, then compares
Two original gray-scale signals and the first original gray-scale signal are to obtain correction value.Correction value is plus the second original gray-scale signal to obtain
Second amendment grayscale signal, the second amendment grayscale signal is digital signal, needs to be converted to the second amendment data of analog signal
Second amendment data-signal is then supplied to the second sub-pixel SP2 by data line DL by signal.When grid line in display panel
Quantity it is more when, when refreshing display panel, the charging time of every grid line is shorter, uses driving provided in this embodiment
Method can make the charging rate of data line faster, compared with the existing technology, caused by can improving sub-pixel undercharge
The phenomenon of brightness inaccuracy, can effectively promote the brightness accuracy of sub-pixel, to improve the display quality of display panel.
In some alternative embodiments, please continue to refer to Fig. 1 and Fig. 2, in the present embodiment, the second sub-pixel SP2 is obtained
The second original gray-scale signal, further includes: obtain the second sub-pixel SP2 the second original gray-scale signal simultaneously store.The present embodiment
In the driving method of offer, obtains the second original gray-scale signal of the second sub-pixel SP2 and store, can be driven subsequent
The second original gray-scale signal of the second sub-pixel SP2 is called directly in journey, to carry out the benefit of the data-signal of next sub-pixel
It repays, so as to simplify the driving method of display panel, promotes the drive efficiency of display panel.
In some alternative embodiments, Fig. 5 please be join, Fig. 5 is a kind of correction value look-up table provided in an embodiment of the present invention
Schematic diagram；
In the present embodiment, compare the second original gray-scale signal and the first original gray-scale signal to obtain correction value, further includes:
Preset correction value look-up table；
Compare the second original gray-scale signal and the first original gray-scale signal, correction value is obtained according to correction value look-up table.
In the present embodiment, correction value look-up table is preset, correction value look-up table can provide the first original gray-scale signal,
Two original gray-scale signals, correction value three corresponding relationship, obtain the first original gray-scale signal, the second original gray-scale signal
Afterwards, correction value quickly can be obtained from correction value look-up table.
Specifically, Fig. 5 illustratively provides a kind of correction value look-up table.In correction value look-up table shown in fig. 5, erect
First column data in direction represents the first original gray-scale signal of the first sub-pixel, and the first row data of transverse direction represent
Second original gray-scale signal of two sub-pixels.First original gray-scale signal is expert at the friendship with the second original gray-scale signal column
It is correction value at point.For example, the first original gray-scale signal is 64, the second original gray-scale signal is 96, the first original gray-scale letter
Numbers 64 to be expert at the point of intersection of 96 column of the second original gray-scale signal be+4, and as correction value is+4.
It should be noted that Fig. 5 it is merely illustrative provide a kind of specific set-up mode of correction value look-up table.Figure
Correction value look-up table shown in 5 is actual conditions of the inventor according to display panel, and progress many experiments are obtained, Fig. 5 institute
The correction value look-up table shown, is only applicable to part display panel.It is understood that the specific setting side of correction value look-up table
The specific value of formula and the correction value in correction value look-up table needs to be configured according to the actual conditions of display panel, this
Embodiment is not specifically limited this.
In driving method provided in this embodiment, correction value look-up table has been preset, during driving display panel, nothing
It need to be calculated according to the first original gray-scale signal and the second original gray-scale signal to obtain correction value, it is original obtaining first
After grayscale signal and the second original gray-scale signal, correction value can be quickly obtained from correction value look-up table, thus can letter
Change driving method, improves drive efficiency.
In some alternative embodiments, with continued reference to FIG. 5, the second original gray-scale signal is believed greater than the first original gray-scale
Number when, correction value is positive value；
When second original gray-scale signal is equal to the first original gray-scale signal, correction value zero；
When second original gray-scale signal is less than the first original gray-scale signal, correction value is negative value.
Specifically, when the second original gray-scale signal is greater than the first original gray-scale signal, the as number of the second sub-pixel
It is believed that number be higher than the first sub-pixel data-signal, data line to the first sub-pixel provide data-signal after, electric signal need
It increases to provide data-signal to the second sub-pixel, in this case, correction value is positive value, is repaired to obtain higher second
Positive grayscale signal, the second amendment grayscale signal are converted to the second amendment data-signal, and the second amendment data-signal is higher than the second son
The data-signal of pixel.When the charging time of grid line is shorter, compared with the existing technology, sub-pixel can be effectively improved
The accuracy of voltage promotes the display quality of display panel to promote the accuracy of the brightness of sub-pixel.
When second original gray-scale signal is equal to the first original gray-scale signal, as the data-signal of the second sub-pixel is higher than the
The data-signal of one sub-pixel, after data line provides data-signal to the first sub-pixel, electric signal can be remained unchanged, at this
In the case of kind, correction value zero is compensated without the electric signal for data line.
When second original gray-scale signal is less than the first original gray-scale signal, as the data-signal of the second sub-pixel is lower than the
The data-signal of one sub-pixel, after data line provides data-signal to the first sub-pixel, electric signal needs to reduce with to second
Sub-pixel provides data-signal, and in this case, correction value is negative value, so that lower second amendment grayscale signal is obtained,
Second amendment grayscale signal is converted to the second amendment data-signal, and the second amendment data-signal is believed lower than the data of the second sub-pixel
Number.When the charging time of grid line is shorter, compared with the existing technology, the accurate of the voltage of sub-pixel can be effectively improved
Degree, to promote the accuracy of the brightness of sub-pixel, promotes the display quality of display panel.
It in some alternative embodiments, is the V- of another data line incorporated by reference to reference Fig. 1, Fig. 2, Fig. 6 and Fig. 7, Fig. 6
T curve schematic diagram；Fig. 7 is the V-T curve schematic diagram of another data line；
In the present embodiment, data line DL to the second sub-pixel SP2 provide data-signal period included drive period T1 and
Conventional period T2；
Drive period T1 is being crossed, the second amendment data-signal is supplied to by the second sub-pixel SP2 by data line DL；
In conventional period T2, the corresponding second data-signal V2 of the second original gray-scale signal is supplied to by data line DL
Second sub-pixel SP2.
Specifically, Fig. 6 and Fig. 7 illustrate the V-T curve of data line.In Fig. 6, the Y3 curve of dotted line signal is unused
The X3 curve of V-T curve when driving method provided in this embodiment, solid line signal is to have used driving provided in this embodiment
V-T curve when method.In Fig. 7, the Y4 curve of dotted line signal is that V-T when driving method provided in this embodiment is not used is bent
Line, the X4 curve of solid line signal are V-T curves when having used driving method provided in this embodiment.Data line DL is sub to second
The period that pixel SP2 provides data-signal is that every row shows time TL.
Referring to Figure 6, carrying out example for driving method provided in this embodiment in Fig. 6 only by taking V2 > V1 as an example
The explanation of property.After data line DL provides data-signal V1 to the first sub-pixel SP1, need and then to mention to the second sub-pixel SP2
For data-signal V2.In the present embodiment, every row is shown that time TL is divided, when having included at least drive period T1 and routine
Section T2.Drive period T1 is being crossed, data line DL corrects data-signal to data-signal provided by the second sub-pixel SP2 for second,
To improve the charging rate of data line DL, when data line DL charges to V2 voltage, in order to avoid data line voltage after of continuing rising
It is high and cause to overcharge, conventional period T2 is provided in the present embodiment, in conventional period T2, data line DL is by the second original ash
The corresponding second data-signal V2 of rank signal is supplied to the second sub-pixel SP2, so that the voltage of the second sub-pixel is maintained at second
Data-signal V2, until every row shows that time TL terminates.When the refreshing frequency of display panel is lower, the charging of every row sub-pixel
Time is longer, and as every row shows time TL longer, driving method provided in this embodiment can to avoid data line voltage after
It is of continuing rising high and sub-pixel is caused to overcharge, guarantee display quality.
Referring to Figure 7, carrying out example for driving method provided in this embodiment in Fig. 7 only by taking V2 < V1 as an example
The explanation of property.After data line DL provides data-signal V1 to the first sub-pixel SP1, need and then to mention to the second sub-pixel SP2
For data-signal V2.In this implementation, every row is shown that time TL is divided, has included at least and has crossed drive period T1 and conventional period
T2.Drive period T1 is being crossed, data line DL corrects data-signal to data-signal provided by the second sub-pixel SP2 for second, with
The charging rate for improving data line DL, when data line DL charges to V2 voltage, in order to avoid the voltage of data line continues to reduce
And cause to overcharge, conventional period T2 is provided in the present embodiment, in conventional period T2, data line DL is by the second original gray-scale
The corresponding second data-signal V2 of signal is supplied to the second sub-pixel SP2, so that the voltage of the second sub-pixel is maintained at the second number
It is believed that number V2, until every row shows that time TL terminates.
In driving method provided in this embodiment, setting data line DL to the second sub-pixel SP2 provide data-signal when
Section included drive period T1 and conventional period T2, was crossing drive period T1, was provided the second amendment data-signal by data line DL
To the second sub-pixel SP2；In conventional period T2, by data line DL by corresponding second data-signal of the second original gray-scale signal
V2 is supplied to the second sub-pixel SP2, can prevent the electric signal of data line from overcharging, and further increases the electricity of sub-pixel
The accuracy of signal promotes display effect.
It should be noted that relative to Fig. 3 and driving method illustrated in Figure 4, Fig. 6 and driving method illustrated in Figure 7
In be provided with drive period T1 and conventional period T2, being specifically chosen which kind of driving method can be according to the actual conditions of display panel
It is configured.For example, when there are many quantity of grid line in display panel, when the charging time of every row grid line is extremely short, Ke Yixuan
It is lasting to provide compensation letter to sub-pixel within the charging time of every row grid line with Fig. 3 and driving method illustrated in Figure 4
Number.For example, the charging time of every row grid line is comparatively abundant when the quantity of grid line in display panel is relatively fewer,
Fig. 6 and driving method illustrated in Figure 7 can be selected, only the partial period within the charging time of every row grid line, to sub- picture
Element provides thermal compensation signal.The present invention is as exemplary only for the application scenarios for the driving method that each embodiment provides, no
Make concrete restriction.
The embodiment of the invention also provides a kind of display panels, please refer to Fig. 8 and Fig. 9, and Fig. 8 is that the embodiment of the present invention provides
A kind of display panel planar structure schematic diagram；Fig. 9 is a kind of structural representation that circuit is corrected in display panel shown in Fig. 8
Figure；
In the present embodiment, display panel includes: a plurality of gate lines G L, multiple data lines DL, multiple sub-pixel SP；
For being electrically connected with same data line DL and successively close to any two sub-pixel SP for receiving data-signal
For, the sub-pixel SP for first receiving data-signal is the first sub-pixel SP1, the rear sub-pixel SP for receiving data-signal is the second son
Pixel SP2；
Correct circuit C；
Correcting circuit C includes: the first memory module C1, logic module C3, the second memory module C2, analog module C4；
First memory module C1 and logic module C3 electrical connection, logic module C3 and the second memory module C2 electrical connection, the
Two memory module C2 and analog module C4 electrical connection, analog module C4 and data line DL electrical connection；
First memory module C1 is for storing correction value look-up table；
Logic module C3 is used to obtain the second original gray-scale signal of the second sub-pixel SP2, obtains from the second memory module C2
The the first original gray-scale signal for taking the first sub-pixel SP1, compares the second original gray-scale signal and the first original gray-scale signal, from
One memory module C1 obtains correction value；And correction value is obtained into the second amendment grayscale letter plus the second original gray-scale signal
Number；
Second amendment grayscale signal is converted to the second amendment data-signal by analog module C4；
Data line DL is used to the second amendment data-signal being supplied to the second sub-pixel SP2.
Display panel provided in this embodiment can be double-gate structure, or conventional structure, the present embodiment is to this
It is not specifically limited.Display panel shown in Fig. 8 only carries out the present embodiment with the display panel of double-gate structure illustrative
Illustrate, should not cause for concrete restriction of the invention.
Specifically, display panel includes a plurality of gate lines G L, multiple data lines DL and multiple sub-pixel SP.Wherein, grid
Polar curve GL and sub-pixel SP electrical connection, the time for receiving the data-signal of data DL for controlling sub-pixel SP.First sub-pixel
SP1 and the second sub-pixel SP2 and same data line DL electrical connection, as, a data line DL timesharing to the first sub-pixel
SP1 and the second sub-pixel SP2 provide data-signal respectively.Wherein, the first sub-pixel SP1 and the second sub-pixel SP2 successively close to
It receives data-signal to refer to, after data line DL provides data-signal to the first sub-pixel SP1, and then to the second sub-pixel SP2
Data-signal is provided.To the first sub-pixel SP1 provide data-signal and to the second sub-pixel SP2 provide data-signal be continuously into
It is capable, between will not provide data-signal to other sub-pixels.
In display panel provided in this embodiment, it is provided with amendment circuit C, amendment circuit C can be for the electricity of data line
Signal compensates, to promote the accuracy of display panel brightness.
Specifically, the first memory module C1 and the second memory module C2 all have the function of storing data, the first storage
Module C1 is used to store the first original gray-scale of the first sub-pixel SP1 for storing correction value look-up table, the second memory module C2
Signal.
It is original according to second after logic module C3 obtains the first original gray-scale signal and the second original gray-scale signal respectively
The size of grayscale signal and the first original gray-scale signal obtains correction value from the first memory module C1, and correction value is added
Second original gray-scale signal is to obtain the second amendment grayscale signal.Second amendment grayscale signal is transmitted to second by logic module C3
Second amendment grayscale signal is transmitted to analog module C4 by memory module C2, the second memory module C2, and analog module C4 is by second
Amendment grayscale signal is converted to the second amendment data-signal and exports to corresponding data line.Data line DL corrects data for second
Signal is supplied to the second sub-pixel SP2.
In display panel provided in this embodiment, amendment circuit C can be compensated the electric signal of data line, data
Line to the data-signal that the second sub-pixel provides be by modified.Correction value can be obtained from correction value look-up table, amendment
Value look-up table can provide the first original gray-scale signal, the second original gray-scale signal, correction value three corresponding relationship, obtaining
After first original gray-scale signal, the second original gray-scale signal, logic module C3 can be obtained quickly from correction value look-up table
Correction value.Correction value is configured according to the original gray-scale signal of the first sub-pixel SP1 and the second sub-pixel SP2, for example, when the
When the original gray-scale signal of one sub-pixel SP1 and the second sub-pixel SP2 difference are bigger, the absolute value of correction value is bigger.Correction value
Specific value can also be configured according to the actual conditions of display panel, for example, according to the charging time of every grid line
It is set, this implementation is not specifically limited the specific value of correction value.A kind of illustrative reality of correction value look-up table
The mode of applying can refer to Fig. 5 and corresponding explanatory note.
Display panel provided in this embodiment, at least have it is following the utility model has the advantages that
The electric signal of data line is compensated, to solve the problems, such as that the prior art proposes.Specifically, logic mould
Block C3 obtains the first original gray-scale signal of the second original gray-scale signal of the second sub-pixel SP2, the first sub-pixel SP1 respectively,
Then compare the second original gray-scale signal and the first original gray-scale signal, and obtains correction value from the first memory module C1.Amendment
Value obtains the second amendment grayscale signal plus the second original gray-scale signal, and the second amendment grayscale signal is digital signal, simulation
Second amendment grayscale signal is converted to the second amendment data-signal of analog signal and exported to corresponding data line by module C4,
Second amendment data-signal is supplied to the second sub-pixel SP2 by data line DL.When the quantity of grid line in display panel is more,
When refreshing display panel, the charging time of every grid line is shorter, using display panel provided in this embodiment, can make to count
According to line charging rate faster, compared with the existing technology, brightness inaccuracy caused by sub-pixel undercharge can be improved
Phenomenon, can effectively promote the brightness accuracy of sub-pixel, to improve the display quality of display panel.
It in some alternative embodiments, is display shown in Fig. 8 incorporated by reference to reference Fig. 6, Fig. 7, Fig. 8 and Figure 10, Figure 10
Another structural schematic diagram of circuit is corrected in panel；
In display panel provided in this embodiment, data line DL provides the period packet of data-signal to the second sub-pixel SP2
Included drive period T1 and conventional period T2；
Drive period T1 is being crossed, the second amendment data-signal is supplied to by the second sub-pixel SP2 by data line DL；
In conventional period T2, the corresponding second data-signal V2 of the second original gray-scale signal is supplied to by data line DL
Second sub-pixel SP2；
Correct circuit C further include: time control module C5；Time control module C5 be used for set drive period T1 when
It is long.
It in display panel provided in this embodiment, corrects and is also provided with time control module C5 in circuit C, the time controls mould
Block C5 can set the duration for driving period T1 according to the actual conditions of display panel.
It should be noted that since display panel provided in this embodiment further includes conventional period T2, in conventional period T2,
The corresponding second data-signal V2 of the second original gray-scale signal is supplied to the second sub-pixel SP2 by data line DL.Thus, the
Two memory module C2 are also used to for the second original gray-scale signal being transmitted to analog module C4, and analog module C4 is by the second original gray-scale
Signal is converted to the second data-signal and exports to corresponding data line.
It in display panel provided in this embodiment, corrects and is also provided with time control module C5 in circuit C, the time controls mould
Block C5 is used to set the duration for driving period T1, is crossing drive period T1, is provided the second amendment data-signal by data line DL
To the second sub-pixel SP2；In conventional period T2, by data line DL by corresponding second data-signal of the second original gray-scale signal
V2 is supplied to the second sub-pixel SP2, can prevent the electric signal of data line from overcharging, and further increases the electricity of sub-pixel
The accuracy of signal promotes display effect.
It should be noted that crossing the specific duration of drive period T1 can be configured according to the actual conditions of display panel,
The present embodiment is not specifically limited this.
In some alternative embodiments, referring to FIG. 8, display panel includes chip IC, chip IC includes amendment circuit
C.In display panel provided in this embodiment, by amendment circuit integration in chip IC, it is possible to reduce amendment circuit is in display surface
Occupied area on plate promotes display quality to be conducive to improve the aperture opening ratio of display panel.
It is understood that correcting at least partly structure in circuit in other optional implementations of the invention
It can be set in the non-display area of display panel, during making display panel, utilize the film layer knot in display panel
Amendment circuit is made in structure.
In some alternative embodiments, with continued reference to FIG. 8, display panel includes viewing area AA；Optionally, display surface
Plate further includes non-display area NA, and non-display area NA is arranged around viewing area AA.
Viewing area AA includes: a plurality of gate lines G L extended along first direction X, a plurality of data line extended in a second direction
DL, the multiple sub-pixel SP being arranged in array；Grid line includes first grid polar curve GL1 and second gate line GL2, sub-pixel SP packet
Include driving switch T and pixel electrode PI；
Sub-pixel SP includes the first sub-pixel SP1 and the second sub-pixel SP2, the first sub-pixel SP1 and the second sub-pixel SP2
It is alternately arranged to form rows SPX along first direction X；
Viewing area AA includes the row repetitive unit 100 of multiple arrangements of Y in a second direction, and row repetitive unit 100 includes: one
First grid polar curve GL1, a second gate line GL2 and a rows SPX；
With in a line repetitive unit 100, first grid polar curve GL1 and second gate line GL2 are located at the edge rows SPX
The grid of the driving switch T of second direction Y opposite two sides, first grid polar curve GL1 and the first sub-pixel SP1 are electrically connected, and second
The grid of the driving switch T of gate lines G L2 and the second sub-pixel SP2 are electrically connected, first grid polar curve GL1 and second gate line GL2
Scanning signal exist overlapping, and the scanning signal of second gate line GL2 is later than the scanning signal of first grid polar curve GL2；
Multiple first sub-pixel SP are arranged in a second direction forms the first sub-pixel column SPY1, multiple edges second sub-pixel SP
Second direction arranges to form the second sub-pixel column SPY2；
Viewing area AA includes multiple column repetitive units 200 along first direction X arrangement, and column repetitive unit 200 includes: one
First sub-pixel column SPY1, a second sub-pixel column SPY2, a data line DL；Sub- picture in same row repetitive unit 200
The source electrode of the driving switch of plain SP is electrically connected with data line DL.
Display panel provided in this embodiment is the display panel of double-gate structure, between adjacent two sub-pixels row SPX
It is provided with two grid lines.Grid line includes first grid polar curve GL1 and second gate line GL2, first grid polar curve GL1 and second gate
Polar curve GL2 is used to drive the sub-pixel SP in same rows SPX.In the display panel of double-gate structure, the quantity of grid line
It is more, correspondingly, the charging time of every grid line is shorter during the driving of display panel, it is provided in this embodiment aobvious
Show and be provided with amendment circuit C in panel, the phenomenon that undercharge can occur to avoid sub-pixel, promote the display surface of double-gate structure
The display quality of plate.
The present invention also provides a kind of display device, including display panel, display panel uses any of the above-described reality of the present invention
Any one driving method for applying example offer drive.
The present invention also provides another display device, the display panel provided including any of the above-described embodiment of the present invention.
Figure 11 is please referred to, Figure 11 is a kind of structural schematic diagram of display device provided in an embodiment of the present invention.The present embodiment
The display device 1000 of offer, including display panel 1001.Wherein, any of the above-described reality of the present invention can be used in display panel 1001
Any one driving method for applying example offer drive, alternatively, display panel 1001 can be any of the above-described implementation of the present invention
The display panel that example provides.
It is understood that display device provided in an embodiment of the present invention, can be mobile phone, computer, TV, car-mounted display
Other display devices having a display function such as device, the present invention are not specifically limited this.It is provided in an embodiment of the present invention aobvious
Showing device, the beneficial effect of the driving method with display panel provided in an embodiment of the present invention specifically can be with reference to above-mentioned each
Embodiment illustrates the driving method of display panel, and details are not described herein the present embodiment.
Through the foregoing embodiment it is found that display panel provided by the invention and its driving method, display device, are at least realized
It is following the utility model has the advantages that
The electric signal of data line is compensated, to solve the problems, such as that the prior art proposes.Specifically, obtaining respectively
The second original gray-scale signal of the second sub-pixel, the first original gray-scale signal of the first sub-pixel are taken, it is original then to compare second
Grayscale signal and the first original gray-scale signal are to obtain correction value.Correction value is repaired plus the second original gray-scale signal with obtaining second
Positive grayscale signal, the second amendment grayscale signal is digital signal, needs to be converted to the second amendment data-signal of analog signal, and
The second amendment data-signal is supplied to by the second sub-pixel by data line afterwards.When the quantity of grid line in display panel is more
When, when refreshing display panel, the charging time of every grid line is shorter, can be with using driving method provided in this embodiment
Make the charging rate of data line faster, compared with the existing technology, brightness is inaccurate caused by can improving sub-pixel undercharge
True phenomenon, can effectively promote the brightness accuracy of sub-pixel, to improve the display quality of display panel.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (11)
1. a kind of driving method of display panel, which is characterized in that
The display panel includes:
A plurality of grid line, multiple data lines, multiple sub-pixels；
For with data line described in same be electrically connected and successively close to receive data-signal any two sub-pixel and
Speech, the sub-pixel for first receiving data-signal is the first sub-pixel, the rear sub-pixel for receiving data-signal is the second sub-pixel；
The driving method includes:
Obtain the second original gray-scale signal of second sub-pixel；
Obtain the first original gray-scale signal of first sub-pixel；
Compare the second original gray-scale signal and the first original gray-scale signal to obtain correction value；
The correction value is plus the second original gray-scale signal to obtain the second amendment grayscale signal；
The second amendment grayscale signal is converted into the second amendment data-signal；
The second amendment data-signal is supplied to second sub-pixel by the data line.
2. driving method according to claim 1 characterized by comprising
The second original gray-scale signal and the first original gray-scale signal are to obtain correction value, further includes:
Preset correction value look-up table；
Compare the second original gray-scale signal and the first original gray-scale signal, is repaired according to the correction value look-up table
Positive value.
3. driving method according to claim 1, which is characterized in that
When the second original gray-scale signal is greater than the first original gray-scale signal, the correction value is positive value；
When the second original gray-scale signal is equal to the first original gray-scale signal, the correction value is zero；
When the second original gray-scale signal is less than the first original gray-scale signal, the correction value is negative value.
4. driving method according to claim 1, which is characterized in that
The period of the data line to second sub-pixel offer data-signal included drive period and routine period；
The drive period is spent described, the second amendment data-signal is supplied to by second sub-pixel by the data line；
In the conventional period, corresponding second data-signal of the second original gray-scale signal is provided by the data line
To second sub-pixel.
5. driving method according to claim 1, which is characterized in that
The second original gray-scale signal for obtaining second sub-pixel, further includes:
It obtains the second original gray-scale signal of second sub-pixel and stores.
6. a kind of display panel characterized by comprising
A plurality of grid line, multiple data lines, multiple sub-pixels；
For with data line described in same be electrically connected and successively close to receive data-signal any two sub-pixel and
Speech, the sub-pixel for first receiving data-signal is the first sub-pixel, the rear sub-pixel for receiving data-signal is the second sub-pixel；
Correct circuit；
The amendment circuit includes: the first memory module, logic module, the second memory module, analog module；
First memory module and logic module electrical connection, the logic module and second memory module are electrically connected
It connects, second memory module and analog module electrical connection, the analog module and data line electrical connection；
First memory module is for storing correction value look-up table；
The logic module is used to obtain the second original gray-scale signal of second sub-pixel, obtains from second memory module
Take the first original gray-scale signal of first sub-pixel, the second original gray-scale signal and first original gray-scale
Signal obtains correction value from first memory module；And by the correction value plus the second original gray-scale signal with
Obtain the second amendment grayscale signal；
The second amendment grayscale signal is converted to the second amendment data-signal by the analog module；
The data line is used to the second amendment data-signal being supplied to second sub-pixel.
7. display panel according to claim 6, which is characterized in that
The period of the data line to second sub-pixel offer data-signal included drive period and routine period；
The drive period is spent described, the second amendment data-signal is supplied to by second sub-pixel by the data line；
In the conventional period, corresponding second data-signal of the second original gray-scale signal is provided by the data line
To second sub-pixel；
The amendment circuit further include: time control module；The time control module be used for set it is described cross drive the period when
It is long.
8. display panel according to claim 6, which is characterized in that
The display panel includes chip, and the chip includes the amendment circuit.
9. display panel according to claim 6, which is characterized in that
The display panel includes viewing area；
The viewing area includes: a plurality of grid line extended in a first direction, a plurality of number extended in a second direction
According to line, the multiple sub-pixels being arranged in array；The grid line includes first grid polar curve and second gate line, the sub- picture
Element includes driving switch and pixel electrode；
The sub-pixel includes first sub-pixel and second sub-pixel, and first sub-pixel and second sub-pixel are described in
First direction is alternately arranged to form rows；
The viewing area includes multiple row repetitive units along second direction arrangement, and the row repetitive unit includes: one
The first grid polar curve, a second gate line and the rows；
In the same row repetitive unit, the first grid polar curve and the second gate line are located at the rows edge
The grid of the driving switch of the opposite two sides of the second direction, the first grid polar curve and first sub-pixel is electrically connected,
The grid of the driving switch of the second gate line and second sub-pixel is electrically connected, the first grid polar curve and described second
The scanning signal of grid line, which exists, to be overlapped, and the scanning signal of the second gate line is later than the scanning letter of the first grid polar curve
Number；
Multiple first sub-pixels arrange to form the first sub-pixel column along the second direction, multiple second sub-pixel edges
The second direction arranges to form the second sub-pixel column；
The viewing area includes multiple column repetitive units along first direction arrangement, and the column repetitive unit includes: one
First sub-pixel column, second sub-pixel column, a data line；Institute in the same column repetitive unit
The source electrode of the driving switch of sub-pixel is stated to be electrically connected with the data line.
10. a kind of display device, which is characterized in that including display panel, any one of described display panel applications claim 1-5
The driving method drive.
11. a kind of display device, which is characterized in that including according to the described in any item display panels of claim 6-9.
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