CN104795044B - Drive device, driving method and display device - Google Patents
Drive device, driving method and display device Download PDFInfo
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- CN104795044B CN104795044B CN201510239181.8A CN201510239181A CN104795044B CN 104795044 B CN104795044 B CN 104795044B CN 201510239181 A CN201510239181 A CN 201510239181A CN 104795044 B CN104795044 B CN 104795044B
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Abstract
The invention discloses a kind of drive device, driving method and display device, the drive device is driven to include：First grid driver element and second grid driver element, first grid driver element are connected with each grid line positioned at odd-numbered line, for driving the grid line positioned at odd-numbered line according to the first preset order when drive device is in the first drive pattern；Second grid driver element is connected with each grid line positioned at even number line, for when drive device is in the second drive pattern, the grid line positioned at even number line to be driven according to the second preset order；The drive device switches once every a frame time between the first drive pattern and the second drive pattern.The number of the grid line driven when technical scheme is by reducing display per frame picture, so as to reach the purpose of reduction power consumption.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of drive device, driving method and display device.
Background technology
In the epoch now that development in science and technology is maked rapid progress, liquid crystal display panel has been widely used in electronical display production
On product, such as television set, computer, mobile phone and personal digital assistant.Liquid crystal display panel includes data drive circuit (Source
Driver), gate drivers (Gate Driver) and LCDs etc..Wherein, there is pel array in LCDs,
And gate drivers are used to sequentially open corresponding pixel column in pel array, the pixel data that data driver is exported is passed
Pixel is transported to, and then shows image to be shown.
At present, it is integrated in inside LCDs more and is set with the narrow frame for realizing LCD plate gate drivers
Meter and saving IC costs.For small-sized display panel, it will usually using the structure of unilateral integrated grid driver, i.e., only in array
Grid line one end integrated grid driver of substrate.And for larger display panels, because screen size is big, length of arrangement wire length,
Signal delay can bring pixel undercharge etc. to influence caused by resolution ratio height etc., therefore generally use bilateral integrated grid
The structure of driver, the i.e. equal integrated grid driver in grid line two ends in array base palte.But, current existing display panel is not
Pipe is the structure of unilateral integrated grid driver, or the equal integrated grid driver in two ends structure, the driving method of use is all
It is the driving method of progressive scan.So-called progressive scan driving method refers in a frame image time, since the first grid line
Each row grid line is scanned successively to complete the process of one frame picture of display.
But shown that the power dissipation ratio of display panel is higher using above-mentioned driving method, especially in display panel point
The continuous improvement of resolution and the degree of integration of pixel is brought under the development trend that picture quality is lifted, and display panel power consumption height has become
Restrict a major reason of display panel development.Therefore the power consumption for how reducing display panel is that those skilled in the art need badly
The technical problem of solution.
The content of the invention
The present invention provides a kind of drive device, driving method and display device, to reduce the power consumption of display panel.
To achieve the above object, the invention provides a kind of drive device, for driving display panel, the display panel
Including：Some wire grid lines, the drive device includes：First grid driver element and second grid driver element, described
One drive element of the grid is connected with each grid line positioned at odd-numbered line, the second grid driver element and each grid positioned at even number line
Line is connected；
The first grid driver element is used for when the drive device is in the first drive pattern, default according to first
Grid line of the order driving positioned at odd-numbered line；
The second grid driver element is used for when the drive device is in the second drive pattern, default according to second
Grid line of the order driving positioned at even number line；
The drive device switches every a frame time between first drive pattern and second drive pattern
Once.
Alternatively, the quantity of the grid line on the display panel is 4N, wherein, N is positive integer；
All grid lines positioned at odd-numbered line are divided into：First strange grid line set and the second strange grid line set, described first
Strange grid line set is the set being made up of the grid line put positioned at 4n-3 line positions, and the second strange grid line set is by positioned at 4n-1
The set that the grid line that line position is put is constituted；
Wherein, n values are all integers between [1, N]；
It is described to be specially positioned at the grid line of odd-numbered line according to the driving of the first preset order：Alternate successively from described
A grid line is selected in one strange grid line set and the second strange grid line set to be driven, until positioned at whole grid of odd-numbered line
Line is driven, wherein
The size of each grid line line number according to residing for itself being located in the first strange grid line set is according to ascending
Order is driven, and the size of each grid line line number according to residing for itself being located in the second strange grid line set is according to descending
Order driven；
Or, the size of each grid line line number according to residing for itself being located in the first strange grid line set is according to descending
Order driven, the size of each grid line line number according to residing for itself being located in the second strange grid line set according to by it is small to
Big order is driven.
Alternatively, the quantity for stating the grid line on display panel is 4N, wherein, N is positive integer；
All grid lines positioned at even number line are divided into：First even grid line set and the second even grid line set, described first
Even grid line set is that, by the set constituted for the grid line put positioned at 4n-2 line positions, the described second even grid line set is by positioned at 4n rows
The set of the composition of the grid line of position；
Wherein, n values are all integers between [1, N]；
It is described to be specially positioned at the grid line of even number line according to the driving of the second preset order：Alternate successively from described
A grid line is selected in one even grid line set and the second even grid line set to be driven, until positioned at whole grid of even number line
Line is driven, wherein,
The size of each grid line line number according to residing for itself being located in the first even grid line set is according to ascending
Order is driven, and the size of each grid line line number according to residing for itself being located in the second even grid line set is according to descending
Order driven；
Or, the size of each grid line line number according to residing for itself being located in the first even grid line set is according to descending
Order driven, the size of each grid line line number according to residing for itself being located in the second even grid line set according to by it is small to
Big order is driven.
Alternatively, the first grid driver element includes：First driving chip and the first output control unit, described
One output control unit is corresponded with the grid line positioned at odd-numbered line, and first output control unit is located at the described first driving
Between chip and corresponding grid line；
First driving chip is used to produce driving voltage；
First output control unit is used for the driving electricity when the drive device is in the first drive pattern
On pressure output to corresponding grid line, to drive corresponding grid line, first output control unit is additionally operable to when the driving dress
Resetting voltage is exported to corresponding grid line when putting in the second drive pattern, to reset corresponding grid line；
First output control unit is located on the array base palte in the display panel.
Alternatively, first output control unit includes：First switch pipe and second switch pipe；
The grid of the first switch pipe is connected with the first control line, the first pole of the second switch pipe and described first
Driving chip is connected, and the second pole of the second switch pipe is connected with corresponding grid line；
The grid of the second switch pipe is connected with the second control line, the first pole of the second switch pipe and described first
Control line is connected, and the second pole of the second switch pipe is connected with corresponding grid line；
The phase of the first control signal and the second control signal in second control line in first control line
On the contrary, and first control signal and second control signal phase every a frame time invert once.
Alternatively, the first switch pipe and the second switch pipe are N-type TFT；
Or, the first switch pipe and the second switch pipe are P-type TFT.
Alternatively, the second grid driver element includes：Second driving chip and the second output control unit, described
Two output control units are corresponded with the grid line positioned at even number line, and second output control unit is located at the described second driving
Between chip and corresponding grid line；
Second driving chip is used to produce driving voltage；
Second output control unit is used for the driving electricity when the drive device is in the second drive pattern
On pressure output to corresponding grid line, to drive corresponding grid line, second output control unit is additionally operable to when the driving dress
Resetting voltage is exported to corresponding grid line when putting in the first drive pattern, to reset corresponding grid line；
Second output control unit is located on the array base palte in the display panel.
Alternatively, second output control unit includes：3rd switching tube and the 4th switching tube；
The grid of 3rd switching tube is connected with the 3rd control line, the first pole and described second of the 3rd switching tube
Driving chip is connected, and the second pole of the 3rd switching tube is connected with corresponding grid line；
The grid of 4th switching tube is connected with the 4th control line, the first pole of the second switch pipe and the described 4th
Control line is connected, and the second pole of the second switch pipe is connected with corresponding grid line；
The phase of the 3rd control signal and the 4th control signal in the 4th control line in 3rd control line
On the contrary, and the 4th control signal and the 4th control signal phase every a frame time invert once.
Alternatively, the 3rd switching tube and the 4th switching tube are N-type TFT；
Or, the 3rd switching tube and the 4th switching tube are P-type TFT.
To achieve the above object, present invention also offers a kind of display device, including：Drive device, the drive device
Using above-mentioned drive device.
To achieve the above object, present invention also offers a kind of driving method, the driving method is based on drive device, institute
Drive device is stated using above-mentioned drive device, the driving method includes：
Step S1, in present frame, the drive device be in the first drive pattern, the first grid driver element according to
Grid line of the first preset order driving positioned at odd-numbered line；
Step S2, in next frame, the drive device be in the second drive pattern, the second grid driver element according to
Second preset order driving positioned at even number line grid line, and step S2 execution after the completion of next frame continue executing with step S1.
Alternatively, the quantity of the grid line on display panel is 4N, and N is positive integer, and all grid lines positioned at odd-numbered line are drawn
It is divided into：First strange grid line set and the second strange grid line set, the first strange grid line set are the grid by being put positioned at 4n-3 line positions
The set that line is constituted, the second strange grid line set is the set that is made up of the grid line put positioned at 4n-1 line positions, wherein, n
Value is all integers between [1, N], and the step S1 is specifically included：
Step S11：What is alternated successively selects from the described first strange grid line set and the second strange grid line set
One grid line is driven, until whole grid lines positioned at odd-numbered line are driven；Wherein, it is described to be located at the first strange grid line set
In the size of each grid line line number according to residing for itself driven according to ascending order, it is described to be located at the second strange grid line collection
The size of each grid line line number according to residing for itself in conjunction is driven according to descending order；Or, described to be located at first strange
The size of each grid line line number according to residing for itself in grid line set is driven according to descending order, described to be located at second
The size of each grid line line number according to residing for itself in strange grid line set is driven according to ascending order.
Alternatively, the quantity of the grid line on display panel is 4N, and N is positive integer, and all grid lines positioned at even number line are drawn
It is divided into：First even grid line set and the second even grid line set, the described first even grid line set are the grid by being put positioned at 4n-2 line positions
The set of the composition of line, the second even grid line set be by the set constituted for the grid line put positioned at 4n line positions, wherein, n takes
It is worth for all integers between [1, N], the step S2 is specifically included：
Step S21：What is alternated successively selects from the described first even grid line set and the second even grid line set
One grid line is driven, until whole grid lines positioned at even number line are driven, wherein, it is described to be located at the first even grid line set
In the size of each grid line line number according to residing for itself driven according to ascending order, it is described to be located at the second even grid line collection
The size of each grid line line number according to residing for itself in conjunction is driven according to descending order；Or, described to be located at first even
The size of each grid line line number according to residing for itself in grid line set is driven according to descending order, described to be located at second
The size of each grid line line number according to residing for itself in even grid line set is driven according to ascending order.
The invention has the advantages that：
The invention provides a kind of drive device, driving method and display device, the drive device is driven to include：The first grid
Pole driver element and second grid driver element, first grid driver element are connected with positioned at each grid line of odd-numbered line, for
The grid line for being located at odd-numbered line is driven when drive device is in the first drive pattern according to the first preset order；Second grid driving is single
Member is connected with each grid line positioned at even number line, for when drive device is in the second drive pattern, according to the second preset order
Grid line of the driving positioned at even number line；The drive device is cut every a frame time between the first drive pattern and the second drive pattern
Change once.Technical scheme may be such that a frame is drawn wherein when display panel shows two frame picture of arbitrary neighborhood
Only driving is located at the grid line of odd-numbered line in face, and the pixel for being now only located at odd-numbered line is shown, and in another frame picture only
Driving is located at the grid line of even number line, and the pixel for being now only located at even number line is shown.Due to the visual persistence effect of human eye, this
When human eye remain unchanged and can feel that the picture quality of the display panel is more excellent.As can be seen here, technical scheme is ensureing to show
The picture of panel preferably under the premise of, can effectively reduce display per frame picture when driven grid line number, so as to reach
Reduce the purpose of power consumption.
Brief description of the drawings
Fig. 1 is the structural representation for the drive device that the embodiment of the present invention one is provided；
Fig. 2 be using scheme 1a when positioned at odd-numbered line grid line driver' s timing figure；
Fig. 3 is the ripple of scanning signal in each grid line when being scanned using forward drive of the prior art order to grid line
Shape schematic diagram；
Fig. 4 is the waveform signal of scanning signal in each grid line when being scanned using the scanning sequency in scheme 1a to grid line
Figure；
Fig. 5 be using scheme 1b when positioned at even number line grid line driver' s timing figure；
Fig. 6 is the flow chart for the driving method that the embodiment of the present invention three is provided.
Embodiment
To make those skilled in the art more fully understand technical scheme, the present invention is carried below in conjunction with the accompanying drawings
A kind of drive device, driving method and the display device supplied is described in detail.
Fig. 1 is the structural representation for the drive device that the embodiment of the present invention one is provided, as shown in figure 1, the drive device is used
In driving display panel, wherein, display panel includes：Some wire grid lines, the drive device includes：First grid driver element
1 and second grid driver element 2, first grid driver element 1 is connected with each grid line positioned at odd-numbered line, in drive device
During in the first drive pattern the grid line positioned at odd-numbered line is driven according to the first preset order；Second grid driver element 2 and position
Connected in each grid line of even number line, for when drive device is in the second drive pattern, position to be driven according to the second preset order
In the grid line of even number line；The drive device switches one every a frame time between the first drive pattern and the second drive pattern
It is secondary.
When the drive device provided using the present embodiment drives display panel, the display panel is in display arbitrary neighborhood
During two frame pictures, the grid line that odd-numbered line is only located in a frame image time wherein is driven, and in another frame picture
The grid line that even number line is only located in time is driven.Herein it should be noted that due to the visual persistence effect of human eye, now people
Eye still can feel that the picture quality of the display panel is more excellent.As can be seen here, technical scheme is ensureing display panel
Picture preferably under the premise of, can effectively reduce display per frame picture when driven grid line number, so as to reach reduction
The purpose of power consumption.
As the present invention a kind of alternative, below in conjunction with example to " the first preset order " in the present embodiment with
And " the second preset order " is described in detail, in which it is assumed that the quantity of the grid line on display panel is 4N, N is positive integer.
Alternatively, all grid lines positioned at odd-numbered line are divided into：First strange grid line set and the second strange grid line set, the
One strange grid line set is the set being made up of the grid line put positioned at 4n-3 line positions, and the second strange grid line set is by positioned at 4n-1 rows
The set that the grid line of position is constituted, wherein, n values are all integers between [1, N].
" grid line positioned at odd-numbered line is driven according to the first preset order " described in the present embodiment is specially：Successively in turn
Alternately selecting a grid line from the first strange grid line set and the second strange grid line set is driven (i.e. powered any phase
Two adjacent grid lines, one is that in coming from the first strange grid line set, another is in coming from the second strange grid line set), until position
Driven in whole grid lines of odd-numbered line.Wherein, the line number according to residing for itself of each grid line in the first strange grid line set
Size driven (forward drive) according to ascending order, each grid line in the second strange grid line set is according to itself
The size of residing line number is driven (reverse drive) according to descending order；Or, in the first strange grid line set
The size of each grid line line number according to residing for itself is driven (reverse drive) according to descending order, positioned at the second strange grid line
The size of each grid line line number according to residing for itself in set is driven (forward drive) according to ascending order.
It should be noted that above-mentioned restriction causes the first preset order to contain four kinds of different schemes, it is specific as follows：
Grid line in scheme 1a, the first strange grid line set occupies the odd positions in the first preset order, the second strange grid line
Grid line in set occupies the even number position in the first preset order, and the grid line in the first strange grid line set is positively driven, the
Grid line in two strange grid line set is back-driven into.
Grid line in scheme 2a, the first strange grid line set occupies the odd positions in the first preset order, the second strange grid line
Grid line in set occupies the even number position in the first preset order, and the grid line in the first strange grid line set is back-driven into, the
Each grid line in two strange grid line set is positively driven.
Grid line in scheme 3a, the first strange grid line set occupies the even number position in the first preset order, the second strange grid line
Grid line in set occupies the odd positions in the first preset order, and the grid line in the first strange grid line set is positively driven, the
Grid line in two strange grid line set is back-driven into.
Grid line in scheme 4a, the first strange grid line set occupies the even number position in the first preset order, the second strange grid line
Grid line in set occupies the odd positions in the first preset order, and the grid line in the first strange grid line set is back-driven into, the
Each grid line in two strange grid line set is positively driven.
To cause those skilled in the art to be better understood from technical scheme, below in conjunction with accompanying drawing, with
Grid line in one strange grid line set occupies the odd positions in the first preset order, and the grid line in the second strange grid line set occupies
Even number position in one preset order, the grid line in the first strange grid line set is positively driven (now in the first strange grid line set
Grid line be considered as according to：1st row grid line G_1, the 5th row grid line G_5, the 9th row grid line G_9 ... 4N-4 row grid lines G_
4N-3 order is arranged), the grid line in the second strange grid line set is back-driven into (now grid in the second strange grid line set
Line be considered as according to：4N-1 row grid lines G_4N-1,4N-5 row grid lines G_4N-5,4N-9 row grid lines G_4N-9 ...
3 row grid line G_3 order is arranged) situation (i.e. such scheme 1a) exemplified by illustrate.
Fig. 2 be using scheme 1a when positioned at odd-numbered line grid line driver' s timing figure, as shown in Fig. 2 positioned at odd-numbered line
Grid line is driven when drive device is in the first drive pattern according to the first preset order, in the first preset order, due to
Each grid line of first powered grid line in the first strange grid line set, and the first strange grid line set row according to residing for itself
Several sizes is driven according to ascending order, then first article of powered grid line is the 1st row in the first preset order
Grid line G1.Now, and due to being strange with coming from second by the grid line in the first strange grid line set in the first preset order
What the grid line in grid line set was alternately arranged, therefore the powered grid line of Article 2 comes from the second strange grid in the first preset order
Line set；At the same time, due to each grid line line number according to residing for itself in the second strange grid line set size according to by
Arrive small order greatly to be driven, then the powered grid line of Article 2 is 4N-1 row grid lines G_4N-1 in the first preset order.
According to above-mentioned principle, the like, then in the first preset order, the powered grid line of Article 3 is the 5th row grid
Line G_5, the powered grid line of Article 4 is 4N-5 row grid line G_4N-5, and the powered grid line of Article 5 is the 9th row grid line G_
9, the powered grid line of Article 6 is that 4N-9 row grid line the X articles powered grid line of G_4N-9 ... is Y row grid line G_Y,
Wherein X and Y meet following relation：
It should be noted that above-mentioned relation formula only meets the driving order corresponding to such scheme 1a.For above-mentioned side
The concrete condition of case 2a~4a driving order, reference can be made to the description of the above-mentioned driving order to scheme 1a, specific derivation process
Repeat no more.
It is above-mentioned this to be combined forward drive with reverse drive to realize that being pointed to the grid line of odd-numbered line is mixed to drive
Dynamic mode, can effectively improve the display homogeneity of display panel.Below in conjunction with accompanying drawing come to the present embodiment provide this
Plant and mix order type of drive (forward drive or reverse drive) progress contrast description general to type of drive and in the prior art.
It is well known that being influenceed by the impedance of grid line, in a frame time, with the length of the inswept grid line of scanning signal
The increase of degree, the retardation of scanning signal also can be increasing, especially the trailing edge delay (Falling of scanning signal
Time), easily pixel charge volume is impacted, so as to cause corresponding pixel can not show normal brightness.Thereby result in
Brightness homogeneity, the flicker homogeneity of display panel are poor.
Fig. 3 is the ripple of scanning signal in each grid line when being scanned using forward drive of the prior art order to grid line
Shape schematic diagram, as shown in figure 3, using a kind of mode of forward drive in Fig. 3, i.e., according to the 1st row grid line G_1, the 3rd row grid
Line G_3 ... 4N-3 row grid lines G_4N-3,4N-1 row grid lines G_4N-1 order are scanned driving, wherein with scanning
The increase of the length for the grid line that signal is inswept, the retardation of scanning signal gradually increases (rise time of scanning signal and decline
Time is elongated), significantly it can be seen that scanning letter in 4N-3 row grid line G_4N-3 and 4N-1 row grid lines G_4N-1 from Fig. 3
Number retardation be significantly larger than the retardation of scanning signal in the 1st row grid line G_1, the 3rd row grid line G_3.Thus it can release, show
The charging departure (difference of actual charge value and ideal charging value) of pixel from top to bottom can gradually increase on panel, now can
Cause the overall display brightness on display panel gradually dimmed from top to bottom, i.e. the display brightness homogeneity of display panel is poor.
Fig. 4 is the waveform signal of scanning signal in each grid line when being scanned using the scanning sequency in scheme 1a to grid line
Figure, as shown in figure 4, in Fig. 4 using scheme 1a in mix to by the way of driving, i.e., according to the 1st row grid line G_1,4N-1 row grid
Line G_4N-1 ... 4N-3 row grid lines G_4N-3, the 3rd row grid line G_3 order are (referring to driving order in the above-mentioned 1a to scheme
Description) be scanned driving, wherein with the inswept grid line of scanning signal length increase, the retardation of scanning signal is gradually
Increase, the obvious retardation that can be seen that scanning signal in the 3rd row grid line G_3 and 4N-3 row grid line G_4N-3 from Fig. 4
The retardation of scanning signal significantly larger than in the 1st row grid line G_1,4N-1 row grid lines G_4N-1.Thus it can release, display panel
This deviation that the charging departure of upper pixel from top to bottom occurs that departure is big, departure is small, departure is big, departure is small ...
The alternate situation of size is measured, now the alternate phenomenon of light and shade can be from top to bottom presented in the pixel on display panel, this light and shade is handed over
The design replaced may be such that the brightness between two row pixels of arbitrary neighborhood carries out light and shade complementation, therefore on the whole, entirely
The display brightness homogeneity of display panel is more excellent.
As can be seen here, to mix the display that can effectively improve display panel to type of drive equal for this in above-mentioned scheme 1a
One property.Similarly, mixing to drive scheme for such scheme 2a~4a also can effectively lift the display homogeneity of display panel.
In the present embodiment, alternatively, all grid lines positioned at even number line are divided into：First even grid line set and second
Even grid line set, the first even grid line set is the set being made up of the grid line put positioned at 4n-2 line positions, the second even grid line set
For the set being made up of the grid line put positioned at 4n line positions, wherein, n values are all integers between [1, N].
Being driven according to the first preset order in the present embodiment be specially positioned at the grid line of even number line：Alternate successively
A grid line is selected from the first even grid line set and the second even grid line set to be driven, (i.e. powered arbitrary neighborhood
Two grid lines, one is that in the first even grid line set, another is in the second even grid line set), until positioned at even
Several rows of whole grid lines are driven.Wherein, each grid line in the first even grid line set according to residing for itself line number it is big
Small to be driven (forward drive) according to ascending order, each grid line in the second even grid line set is according to residing for itself
The size of line number is driven (reverse drive) according to descending order；Or, each grid in the first even grid line set
The size of line line number according to residing for itself is driven (reverse drive) according to descending order, positioned at the second even grid line set
In the size of each grid line line number according to residing for itself driven (forward drive) according to ascending order.
It should be noted that above-mentioned restriction causes the second preset order to contain four kinds of different schemes, it is specific as follows：
Grid line in scheme 1b, the first even grid line set occupies the odd positions in the first preset order, the second even grid line
Grid line in set occupies the even number position in the first preset order, and the grid line in the first even grid line set is positively driven, the
Grid line in two even grid line set is back-driven into.
Grid line in scheme 2b, the first even grid line set occupies the odd positions in the first preset order, the second even grid line
Grid line in set occupies the even number position in the first preset order, and the grid line in the first even grid line set is back-driven into, the
Each grid line in two even grid line set is positively driven.
Grid line in scheme 3b, the first even grid line set occupies the even number position in the first preset order, the second even grid line
Grid line in set occupies the odd positions in the first preset order, and the grid line in the first even grid line set is positively driven, the
Grid line in two even grid line set is back-driven into.
Grid line in scheme 4b, the first even grid line set occupies the even number position in the first preset order, the second even grid line
Grid line in set occupies the odd positions in the first preset order, and the grid line in the first even grid line set is back-driven into, the
Each grid line in two even grid line set is positively driven.
To cause those skilled in the art to be better understood from technical scheme, below in conjunction with accompanying drawing, with
Grid line in one even grid line set occupies the odd positions in the second preset order, and the grid line in the second even grid line set occupies the
Even number position in two preset orders, the grid line in the first even grid line set is positively driven (now in the first even grid line set
Grid line be considered as according to：2nd row grid line G_2, the 6th row grid line G_6, the 10th row grid line G_10 ... 4N-2 row grid lines G_
4N-2 order is arranged), the grid line in the second even grid line set is back-driven into (now grid in the second even grid line set
Line be considered as according to：4N row grid lines G_4N, 4N-4 row grid lines G_4N-4, the rows of 4N-8 row grid lines G_4N-8 ... the 4th
Grid line G_4 order is arranged) situation (i.e. such scheme 1b) exemplified by illustrate.
Fig. 5 be using scheme 1b when positioned at even number line grid line driver' s timing figure, as shown in figure 5, positioned at even number line
Grid line is driven when drive device is in the second drive pattern according to the second preset order, in the second preset order, due to
First powered grid line is from the first even grid line set, and each grid line being located in the first even grid line set is according to itself institute
The size of place's line number is driven according to ascending order, then first article of powered grid line is the in the second preset order
2 row grid line G_2.Now, due to being with coming from second in the second preset order by the grid line in the first even grid line set
What the grid line in even grid line set was alternately arranged, therefore, the powered grid line of Article 2 comes from second in the second preset order
Even grid line set, simultaneously as the size of each grid line line number according to residing for itself in the second even grid line set according to by
Arrive small order greatly to be driven, then the powered grid line of Article 2 is 4N row grid lines G_4N in the second preset order.
According to above-mentioned principle, the like, then in the second preset order, the powered grid line of Article 3 is the 6th row grid
Line G_6, the powered grid line of Article 4 is 4N-4 row grid line G_4N-4, and the powered grid line of Article 5 is the 10th row grid line G_
10, the powered grid line of Article 6 is that 4N-8 row grid line the X articles powered grid line of G_4N-8 ... is Y row grid line G_Y,
Wherein X and Y meet following relation：
It should be noted that above-mentioned formula only meets the driving order corresponding to such scheme 1b.For such scheme 2b,
The concrete condition of scheme 3b and scheme 4b driving order, reference can be made to the description of the above-mentioned driving order to scheme 1b, specifically
Derivation is repeated no more.
It is above-mentioned this to be combined forward drive with reverse drive to realize that being pointed to the grid line of even number line is mixed to drive
Dynamic mode, can effectively improve the display homogeneity of display panel, and concrete principle can be found in the description of foregoing corresponding contents, this
Place is repeated no more.
In the present embodiment, alternatively, first grid driver element 1 includes：First driving chip 3 and the first output control
Module 5, the first output control module 5 is corresponded with the grid line positioned at odd-numbered line, and the first output control module 5 is located at first and driven
Move between chip 3 and corresponding grid line, the first driving chip 3 is used to produce driving voltage, and the first output control module 5 is used to work as
Drive device exports driving voltage to corresponding grid line when being in the first drive pattern, to drive corresponding grid line, first
Output control module 5 is additionally operable to export resetting voltage to corresponding grid line when drive device is in the second drive pattern,
To reset corresponding grid line；First output control module 5 is located on the array base palte in display panel.
Still optionally further, the first output control module 5 includes：First switch pipe T1 and second switch pipe T2, first opens
The grid for closing pipe T1 is connected with the first control line EN_1, and second switch pipe T2 the first pole is connected with the first driving chip 3, and second
Second pole of switch transistor T 2 is connected with corresponding grid line, and second switch pipe T2 grid is connected with the second control line EN_2, and second
First pole of switch transistor T 2 is connected with the first control line EN_1, and second switch pipe T2 the second pole is connected with corresponding grid line, the
The opposite in phase of the first control signal and the second control signal in the second control line EN_2 in one control line EN_1, and first
The phase of control signal and the second control signal is inverted once every a frame time.
In the prior art, the first output control module 5 is integrated with the first driving chip 3, and the first driving core
Piece 3 is independent outside display panel.The present embodiment by the way that the first output control module 5 is taken out from the first driving chip 3,
And be prepared on array base palte, so as to simplify the structure of the first driving chip 3.Further, the present embodiment is also defeated by first
Go out control module 5 and re-start design so that first output control module 5 is only made up of switching tube and plain conductor.Now,
Switching tube and plain conductor in first output control module 5 can in company with array base palte processing procedure (on underlay substrate shape
Into the processing procedure of the driving tube for driving pixel) formed simultaneously.
Compared with prior art, the structure of the first driving chip 3 in the present invention is than the of the prior art first driving
The structure of chip 3 is simple (the first driving chip 3 in the present embodiment is without integrated first output control module 5), therefore this
The processing procedure of the first driving chip 3 in embodiment is simpler than the processing procedure of the first driving chip 3 in the prior art.It is same with this
When, because the first output control module 5 can simultaneously be prepared with the processing procedure of existing array base palte in the present invention, therefore this
The processing procedure of the array base palte for including the first output control module 5 in embodiment and the complete phase of processing procedure of existing array base palte
Together.From the above, the present invention can simplify the first driving chip 3 in the case where ensureing that array base palte processing procedure is constant
Processing procedure, shorten the preparation time of the first driving chip 3, therefore technical scheme may be such that the life of whole display panel
The production cycle (comprising at least the preparation of first grid driver element 1 and the preparation of display panel) shortens.
Preferably, first switch pipe T1 and second switch pipe T2 is N-type TFT, or, first switch pipe T1
It is P-type TFT with second switch pipe T2.Because first switch pipe T1 is identical with the type of second switch, therefore both
It can be prepared using identical technique.
Herein it should be noted that the first pole and the second pole of switching tube specifically refer to thin film transistor (TFT) pipe in the present invention
With the first extremely source electrode in source electrode and drain electrode, the application, second extremely drain exemplified by illustrate.Certainly, art technology skill
Art personnel are it should also be understood that the first pole of switching tube and second can be extremely interchangeable in the present invention.
So that first switch pipe T1 and second switch pipe T2 are N-type TFT as an example.When drive device is in first
During drive pattern, then the first control signal in the first control line EN_1 is in second in high level, the second control line EN_2
Control signal is in low level, and now first switch pipe T1 is turned on, second switch pipe T2 cut-offs, what the first driving chip 3 was produced
Driving voltage can be transmitted to corresponding grid line by corresponding first switch pipe T1；When drive device is in the second drive pattern
When, then the first control signal in the first control line EN_1 is in the second control signal in low level, the second control line EN_2
In high level, now first switch pipe T1 cut-offs, second switch pipe T2 conductings are provided in low level first control signal
Resetting voltage, and resetted by the corresponding second switch pipe T2 grid lines for being pointed to odd-numbered line.
With above-mentioned first grid driver element 1 similarly, the second grid driver element 2 in the present embodiment includes：Second
The output control module 6 of driving chip 4 and second, the second output control module 6 is corresponded with the grid line positioned at even number line, and second
Output control module 6 is located between the second driving chip 4 and corresponding grid line, and the second driving chip 4 is used to produce driving voltage,
Second output control module 6 is used to export driving voltage to corresponding grid line when drive device is in the second drive pattern
On, to drive corresponding grid line, the second output control module 6 is additionally operable to reset when drive device is in the first drive pattern
On voltage output to corresponding grid line, to reset corresponding grid line, the second output control module 6 is located at the array in display panel
On substrate.
Still optionally further, the second output control module 6 includes：3rd switch transistor T 3 and the 4th switch transistor T 4, the 3rd opens
The grid for closing pipe T3 is connected with the 3rd control line EN_3, and the first pole of the 3rd switch transistor T 3 is connected with the second driving chip 4, and the 3rd
Second pole of switch transistor T 3 is connected with corresponding grid line, and the grid of the 4th switch transistor T 4 is connected with the 4th control line EN_4, and second
First pole of switch transistor T 2 is connected with the 4th control line EN_4, and second switch pipe T2 the second pole is connected with corresponding grid line, the
The opposite in phase of the 3rd control signal and the 4th control signal in the 4th control line EN_4 in three control line EN_3, and the 4th
The phase of control signal and the 4th control signal is inverted once every a frame time.Wherein, still optionally further, the 3rd switching tube
T3 and the 4th switch transistor T 4 are N-type TFT, or the 3rd switch transistor T 3 and the 4th switch transistor T 4 are that p-type film is brilliant
Body pipe.
In the present embodiment, second output control module 6 includes：3rd switch transistor T 3 and the 4th switch transistor T 4, and the 3rd
The switch transistor T 4 of switch transistor T 3 and the 4th is arranged on the technological means of array base palte, may be such that the production cycle of whole display panel
(comprising at least the preparation of second grid driver element 2 and the preparation of display panel) shortens.Concrete principle can be found in foregoing teachings
In corresponding description to the first output control module 5, here is omitted.
So that the 3rd switch transistor T 3 and the 4th switch transistor T 4 are N-type TFT as an example.When drive device is in first
During drive pattern, then the 3rd control signal in the 3rd control line EN_3 is in the 4th in low level, the 4th control line EN_4
Control signal is in high level, and now the 3rd switch transistor T 3 is ended, and the 4th switch transistor T 4 is turned on, in the low level 3rd control
Signal provides resetting voltage, and the grid line for being pointed to even number line by corresponding 4th switch transistor T 4 is resetted；When driving dress
When putting in the second drive pattern, then the 3rd control signal in the 3rd control line EN_3 is in high level, the 4th control line EN_
The 4th control signal in 4 is in low level, and now the 3rd switch transistor T 3 is turned on, and the 4th switch transistor T 4 is ended, the second driving core
The driving voltage that piece 4 is produced can be transmitted to corresponding grid line by corresponding 3rd switch transistor T 3.
It should be noted that when the first output control module 5 includes first switch pipe T1 and second switch pipe T2, and second
When output control module 6 includes the 3rd switch transistor T 3 and four switch transistor Ts 4, first be connected with first switch pipe T1 grid
Control line EN_1 and the 4th control line EN_4 being connected with the grid of the 4th switch transistor T 4 can be same control line, with second
Second control line EN_2 of the grid connection of switch transistor T 2 and the 3rd control line EN_3 being connected with the grid of the 3rd switch transistor T 3
Can be same control line, then now corresponding to four switching tubes only needs to set in two control lines, and this two control lines
Signal opposite in phase, and signal in this two control lines inverts once every a frame time.
The embodiment of the present invention two provides a kind of display device, including：Display panel and drive device, the drive device are used
In driving display panel, the drive device uses the drive device provided in above-described embodiment one, and particular content can be found in above-mentioned
Description in embodiment one.
Fig. 6 is the flow chart for the driving method that the embodiment of the present invention three is provided, as shown in fig. 6, the driving method is based on driving
Dynamic device, the drive device uses the drive device in above-described embodiment one, and the driving method includes：
Step S1, in present frame, drive device is in the first drive pattern, and first grid driver element is default according to first
Grid line of the order driving positioned at odd-numbered line.
Alternatively, the quantity of the grid line on display panel is 4N, and N is positive integer, and all grid lines positioned at odd-numbered line are drawn
It is divided into：First strange grid line set and the second strange grid line set, the first strange grid line set are the grid by being put positioned at 4n-3 line positions
The set that line is constituted, the second strange grid line set is the set that is made up of the grid line put positioned at 4n-1 line positions, wherein, n
Value is all integers between [1, N], and step S1 is specifically included：
Step S11：What is alternated successively selects a grid line from the first strange grid line set and the second strange grid line set
It is driven, until whole grid lines positioned at odd-numbered line are driven；Wherein, each grid line root in the first strange grid line set
Driven according to the size of itself residing line number according to ascending order, each grid line in the second strange grid line set according to
The size of itself residing line number is driven according to descending order；Or, each grid line root in the first strange grid line set
Driven according to the size of itself residing line number according to descending order, each grid line in the second strange grid line set according to
The size of itself residing line number is driven according to ascending order.
In step s 11, four kinds of drive schemes in above-described embodiment one can specifically be included：Scheme 1a~4a, this four
In kind of scheme, this grid line for being pointed to odd-numbered line with realization that is combined forward drive with reverse drive is used to be mixed to drive
Dynamic mode, can effectively improve the display homogeneity of display panel.Concrete principle can be found in the description of foregoing appropriate section.
Step S2, in next frame, drive device is in the second drive pattern, and second grid driver element is default according to second
Grid line of the order driving positioned at even number line.
Alternatively, the quantity of the grid line on display panel is 4N, and N is positive integer, and all grid lines positioned at even number line are drawn
It is divided into：First even grid line set and the second even grid line set, the first even grid line set are the grid line by being put positioned at 4n-2 line positions
The set of composition, the second even grid line set be by the set constituted for the grid line put positioned at 4n line positions, wherein, n values are [1, N]
Between all integers, step S2 specifically includes：
Step S21：What is alternated successively selects a grid line from the first even grid line set and the second even grid line set
It is driven, until whole grid lines positioned at even number line are driven, wherein, each grid line root in the first even grid line set
Driven according to the size of itself residing line number according to ascending order, each grid line in the second even grid line set according to
The size of itself residing line number is driven according to descending order；Or, each grid line root in the first even grid line set
Driven according to the size of itself residing line number according to descending order, each grid line in the second even grid line set according to
The size of itself residing line number is driven according to ascending order.
In the step s 21, four kinds of drive schemes in above-described embodiment one can specifically be included：Scheme 1b~4b, this four
In kind of scheme, this grid line for being pointed to even number line with realization that is combined forward drive with reverse drive is used to be mixed to drive
Dynamic mode, can effectively improve the display homogeneity of display panel.Concrete principle can be found in the description of foregoing appropriate section.
After step S2 has been performed, step S1 is continued executing with next frame.
It may be such that when display panel shows two frame picture of arbitrary neighborhood, only driven in a frame picture by above-mentioned steps
The dynamic grid line positioned at odd-numbered line, the pixel for being now only located at odd-numbered line is shown, and only driving is located in another frame picture
The grid line of even number line, the pixel for being now only located at even number line is shown.Due to the visual persistence effect of human eye, now human eye according to
The old picture quality that can feel the display panel is more excellent.As can be seen here, technical scheme is ensureing the picture of display panel
Face preferably under the premise of, can effectively reduce display per frame picture when driven grid line number, so as to reach reduction power consumption
Purpose.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, but the invention is not limited in this.For those skilled in the art, the essence of the present invention is not being departed from
In the case of refreshing and essence, various changes and modifications can be made therein, and these variations and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a kind of drive device, it is characterised in that for driving display panel, the display panel includes：Some grid lines, institute
Stating drive device includes：First grid driver element and second grid driver element, the first grid driver element is with being located at
Each grid line connection of odd-numbered line, the second grid driver element is connected with each grid line positioned at even number line；
The first grid driver element is used for when the drive device is in the first drive pattern, according to the first preset order
Grid line of the driving positioned at odd-numbered line；
The second grid driver element is used for when the drive device is in the second drive pattern, according to the second preset order
Grid line of the driving positioned at even number line；
The drive device switches once every a frame time between first drive pattern and second drive pattern；
The quantity of grid line on the display panel is 4N, wherein, N is positive integer；
All grid lines positioned at odd-numbered line are divided into：First strange grid line set and the second strange grid line set, the first strange grid
Line set is the set being made up of the grid line put positioned at 4n-3 line positions, and the second strange grid line set is by positioned at 4n-1 line positions
The set that the grid line put is constituted；
Wherein, n values are all integers between [1, N]；
It is described to be specially positioned at the grid line of odd-numbered line according to the driving of the first preset order：What is alternated successively is strange from described first
A grid line is selected in grid line set and the second strange grid line set to be driven, until whole grid lines positioned at odd-numbered line are equal
Driven, wherein
The size of each grid line line number according to residing for itself being located in the first strange grid line set is according to ascending order
Driven, the size of each grid line line number according to residing for itself being located in the second strange grid line set is according to descending suitable
Sequence is driven；
Or, the size of each grid line line number according to residing for itself being located in the first strange grid line set is according to descending suitable
Sequence is driven, and the size of each grid line line number according to residing for itself being located in the second strange grid line set is according to ascending
Order is driven；
And/or,
All grid lines positioned at even number line are divided into：First even grid line set and the second even grid line set, the described first even grid
Line set is that, by the set constituted for the grid line put positioned at 4n-2 line positions, the described second even grid line set is by positioned at 4n line positions
The set of the composition for the grid line put；
Wherein, n values are all integers between [1, N]；
It is described to be specially positioned at the grid line of even number line according to the driving of the second preset order：What is alternated successively is even from described first
A grid line is selected in grid line set and the second even grid line set to be driven, until whole grid lines positioned at even number line are equal
Driven, wherein,
The size of each grid line line number according to residing for itself being located in the first even grid line set is according to ascending order
Driven, the size of each grid line line number according to residing for itself being located in the second even grid line set is according to descending suitable
Sequence is driven；
Or, the size of each grid line line number according to residing for itself being located in the first even grid line set is according to descending suitable
Sequence is driven, and the size of each grid line line number according to residing for itself being located in the second even grid line set is according to ascending
Order is driven.
2. drive device according to claim 1, it is characterised in that the first grid driver element includes：First drives
Dynamic chip and the first output control unit, first output control unit is corresponded with the grid line positioned at odd-numbered line, described
First output control unit is located between first driving chip and corresponding grid line；
First driving chip is used to produce driving voltage；
First output control unit is used for when the drive device is in the first drive pattern that the driving voltage is defeated
Go out to corresponding grid line, to drive corresponding grid line, first output control unit is additionally operable at the drive device
Resetting voltage is exported to corresponding grid line when the second drive pattern, to reset corresponding grid line；
First output control unit is located on the array base palte in the display panel.
3. drive device according to claim 2, it is characterised in that first output control unit includes：First opens
Close pipe and second switch pipe；
The grid of the first switch pipe is connected with the first control line, the first pole of the second switch pipe and the described first driving
Chip is connected, and the second pole of the second switch pipe is connected with corresponding grid line；
The grid of the second switch pipe is connected with the second control line, the first pole of the second switch pipe and the described first control
Line is connected, and the second pole of the second switch pipe is connected with corresponding grid line；
The opposite in phase of the first control signal and the second control signal in second control line in first control line,
And the phase of first control signal and second control signal is inverted once every a frame time.
4. drive device according to claim 3, it is characterised in that the first switch pipe and the second switch Guan Jun
For N-type TFT；
Or, the first switch pipe and the second switch pipe are P-type TFT.
5. drive device according to claim 1, it is characterised in that the second grid driver element includes：Second drives
Dynamic chip and the second output control unit, second output control unit is corresponded with the grid line positioned at even number line, described
Second output control unit is located between second driving chip and corresponding grid line；
Second driving chip is used to produce driving voltage；
Second output control unit is used for when the drive device is in the second drive pattern that the driving voltage is defeated
Go out to corresponding grid line, to drive corresponding grid line, second output control unit is additionally operable at the drive device
Resetting voltage is exported to corresponding grid line when the first drive pattern, to reset corresponding grid line；
Second output control unit is located on the array base palte in the display panel.
6. drive device according to claim 5, it is characterised in that second output control unit includes：3rd opens
Close pipe and the 4th switching tube；
The grid of 3rd switching tube is connected with the 3rd control line, the first pole of the 3rd switching tube and the described second driving
Chip is connected, and the second pole of the 3rd switching tube is connected with corresponding grid line；
The grid of 4th switching tube is connected with the 4th control line, the first pole of the 4th switching tube and the described 4th control
Line is connected, and the second pole of the 4th switching tube is connected with corresponding grid line；
The opposite in phase of the 3rd control signal and the 4th control signal in the 4th control line in 3rd control line,
And the phase of the 4th control signal and the 4th control signal is inverted once every a frame time.
7. drive device according to claim 6, it is characterised in that the 3rd switching tube and the 4th switching tube are equal
For N-type TFT；
Or, the 3rd switching tube and the 4th switching tube are P-type TFT.
8. a kind of display device, it is characterised in that including：Drive device as described in any in claim 1-7.
9. a kind of driving method, it is characterised in that the driving method is based on drive device, the drive device uses above-mentioned power
Profit requires any described drive device in 1-7, and the driving method includes：
Step S1, in present frame, the drive device be in the first drive pattern, the first grid driver element is according to first
Grid line of the preset order driving positioned at odd-numbered line；
Step S2, in next frame, the drive device be in the second drive pattern, the second grid driver element is according to second
Preset order driving positioned at even number line grid line, and step S2 execution after the completion of next frame continue executing with step S1；
When all grid lines positioned at odd-numbered line are divided into：First strange grid line set and the second strange grid line set, described first is strange
Grid line set is the set being made up of the grid line put positioned at 4n-3 line positions, and the second strange grid line set is by positioned at 4n-1 rows
During the set that the grid line of position is constituted, step S1 is specifically included：
Step S11：What is alternated successively selects one from the described first strange grid line set and the second strange grid line set
Grid line is driven, until whole grid lines positioned at odd-numbered line are driven；Wherein, it is described to be located in the first strange grid line set
The size of each grid line line number according to residing for itself is driven according to ascending order, described to be located in the second strange grid line set
The size of each grid line line number according to residing for itself driven according to descending order；Or, described it is located at the first strange grid line
The size of each grid line line number according to residing for itself in set is driven according to descending order, described to be located at the second strange grid
The size of each grid line line number according to residing for itself in line set is driven according to ascending order；
When all grid lines positioned at even number line are divided into：First even grid line set and the second even grid line set, described first is even
Grid line set is that, by the set constituted for the grid line put positioned at 4n-2 line positions, the described second even grid line set is by positioned at 4n line positions
During the set of the composition for the grid line put, step S2 is specifically included：
Step S21：What is alternated successively selects one from the described first even grid line set and the second even grid line set
Grid line is driven, until whole grid lines positioned at even number line are driven, wherein, it is described to be located in the first even grid line set
The size of each grid line line number according to residing for itself is driven according to ascending order, described to be located in the second even grid line set
The size of each grid line line number according to residing for itself driven according to descending order；Or, described it is located at the first even grid line
The size of each grid line line number according to residing for itself in set is driven according to descending order, described to be located at the second even grid
The size of each grid line line number according to residing for itself in line set is driven according to ascending order.
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| CN106297616B (en) * | 2016-09-13 | 2020-07-07 | 京东方科技集团股份有限公司 | Array detection circuit, driving method, display driver, display substrate and device |
| CN106875890B (en) * | 2017-04-27 | 2021-01-12 | 京东方科技集团股份有限公司 | Array substrate, display panel, display device and driving method |
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| CN109599071A (en) * | 2017-09-30 | 2019-04-09 | 咸阳彩虹光电科技有限公司 | A kind of liquid crystal display device and driving method |
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| CN108682379A (en) * | 2018-06-29 | 2018-10-19 | 上海天马微电子有限公司 | Display panel, display device and driving method of display panel |
| CN109036303A (en) * | 2018-07-24 | 2018-12-18 | 武汉华星光电技术有限公司 | Goa circuit and display device |
| CN109064963A (en) * | 2018-09-05 | 2018-12-21 | 京东方科技集团股份有限公司 | Display device and driving method, shift register, driving circuit |
| CN109119043A (en) * | 2018-09-30 | 2019-01-01 | 惠科股份有限公司 | Display panel, driving method thereof and display device |
| CN109410852A (en) * | 2018-10-22 | 2019-03-01 | 惠科股份有限公司 | Display device and detection method thereof |
| CN110491331B (en) * | 2019-09-30 | 2023-01-24 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN115331642A (en) * | 2022-08-15 | 2022-11-11 | 深圳创维－Rgb电子有限公司 | Display panel, display device and driving method of display panel |
| CN117593977A (en) * | 2022-08-19 | 2024-02-23 | 华为技术有限公司 | Display driving chip, display screen and display device |
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| JP2011018020A (en) * | 2009-06-12 | 2011-01-27 | Renesas Electronics Corp | Display panel driving method, gate driver and display apparatus |
| KR20110138006A (en) * | 2010-06-18 | 2011-12-26 | 엘지디스플레이 주식회사 | Driving circuit for liquid crystal display device and method for driving the same |
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2015
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1773338A (en) * | 2004-11-10 | 2006-05-17 | 三星Sdi株式会社 | Liquid crystal display and driving method thereof |
| CN103474044A (en) * | 2013-09-29 | 2013-12-25 | 北京京东方光电科技有限公司 | Grid driving circuit, array substrate, display device and driving method |
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