CN115331643A - Grid driving method - Google Patents
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- CN115331643A CN115331643A CN202211035196.9A CN202211035196A CN115331643A CN 115331643 A CN115331643 A CN 115331643A CN 202211035196 A CN202211035196 A CN 202211035196A CN 115331643 A CN115331643 A CN 115331643A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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Abstract
The invention discloses a grid driving method of a display panel, wherein the display panel comprises a plurality of scanning lines, and the scanning lines comprise a plurality of odd-numbered scanning lines and a plurality of even-numbered scanning lines; the gate driving method includes the steps of: in a Kth frame of picture, sequentially outputting scanning driving signals to each odd-numbered scanning line of the display panel; and in a K +1 frame picture, sequentially outputting scanning driving signals to each even-numbered scanning line of the display panel, wherein K is a natural number. The grid driving method can reduce the driving energy consumption of the display panel.
Description
Technical Field
The present invention relates to display technologies, and in particular, to a gate driving method.
Background
As shown in fig. 1, the lcd panel driving array includes a plurality of scan lines G1 to Gn parallel to each other, a plurality of data lines D1 to Dm parallel to each other and intersecting the scan lines in a vertical insulating manner, and a plurality of pixel units P distributed between the plurality of scan lines and the plurality of data lines and electrically connected to the corresponding scan lines and data lines. Each pixel unit P includes a thin film transistor and a pixel electrode.
The grid driver provides scanning driving signals for the scanning lines to control the on and off of the thin film transistor, and the source driver provides data driving signals for the data lines to control the pixel electrodes to be charged and refreshed.
Chinese patent No. CN202010333167.5 discloses that the conventional display panel is driven by a progressive scanning method, and as shown in fig. 2, the gate driver sequentially scans the scanning lines G1 and G2.
In the conventional driving method for progressive scanning, the gate driver needs to output n scanning driving signals in each frame of picture, so that the power consumption is large, and the source driver also needs to output n data driving signals in each frame of picture, so that the problem of large power consumption also exists.
In addition, when a screen is overloaded, it is required that each pixel unit on two adjacent scan lines has opposite voltage polarities, that is, each pixel unit on an odd-numbered row of scan lines has a positive electrode, each pixel unit on an even-numbered row of scan lines has a negative electrode, or vice versa, each pixel unit on an odd-numbered row of scan lines has a negative electrode, and each pixel unit on an even-numbered row of scan lines has a positive electrode.
Disclosure of Invention
In order to solve the above-mentioned deficiencies of the prior art, the present invention provides a gate driving method, which can reduce the driving power consumption of the display panel.
The technical problem to be solved by the invention is realized by the following technical scheme:
a grid driving method of a display panel comprises a plurality of scanning lines, wherein the scanning lines comprise a plurality of odd-numbered scanning lines and a plurality of even-numbered scanning lines; the gate driving method includes the steps of:
in a Kth frame picture, sequentially outputting scanning driving signals to each odd-numbered row of scanning lines of the display panel;
and in a K +1 frame picture, sequentially outputting scanning driving signals to each even-numbered scanning line of the display panel, wherein K is a natural number.
Further, the step of sequentially outputting the scan driving signal to each odd-numbered scan line or each even-numbered scan line of the display panel is as follows:
acquiring driving time sequence data of each scanning line;
forming a first driving time sequence table of each odd-numbered scanning line or a second driving time sequence table of each even-numbered scanning line according to the driving time sequence data of each scanning line;
and sequentially outputting scanning driving signals to each odd-numbered line of scanning lines according to the first driving time sequence table, or sequentially outputting scanning driving signals to each even-numbered line of scanning lines according to the second driving time sequence table.
Further, the step of forming a first driving timing table for each odd-numbered scanning line or a second driving timing table for each even-numbered scanning line according to the driving timing data of each scanning line comprises: and extracting odd-numbered row data from the driving time sequence data of each scanning line, and arranging the odd-numbered row data to form the first driving time sequence table, or extracting even-numbered row data to arrange the even-numbered row data to form the second driving time sequence table.
Further, the display panel further comprises a plurality of data lines; in the K-th frame, when the scanning driving signal is sequentially output to each odd-numbered scanning line of the display panel, the method further includes: and sequentially and simultaneously outputting data driving signals corresponding to the odd-numbered scanning lines to the data lines of the display panel.
Further, in the kth frame, the step of simultaneously outputting the data driving signals corresponding to the odd-numbered scan lines to the data lines of the display panel in sequence is as follows:
acquiring image time sequence data of a Kth frame of picture;
forming a third driving time sequence table of each data line corresponding to each odd-numbered scanning line according to the image time sequence data of the Kth frame picture;
and sequentially outputting data driving signals to all the data lines simultaneously according to the third driving time sequence table.
Further, the step of forming a third driving timing table of each data line corresponding to each odd-numbered scanning line according to the image timing data of the kth frame picture is as follows: and extracting odd line data from the image time sequence data of the Kth frame picture, and arranging the odd line data to form the third driving time sequence table.
Further, the display panel further comprises a plurality of data lines; in the K +1 th frame, when the scanning driving signals are sequentially output to the even-numbered scanning lines of the display panel, the method further includes: and sequentially and simultaneously outputting data driving signals corresponding to the even-numbered scanning lines to all the data lines of the display panel.
Further, in the K +1 th frame, the step of simultaneously outputting the data driving signals corresponding to the even-numbered scan lines to the data lines of the display panel in sequence is as follows:
acquiring image time sequence data of a K +1 frame picture;
forming a fourth driving time sequence table of each data line corresponding to each even-numbered scanning line according to the image time sequence data of the K +1 frame picture;
and outputting data driving signals to all the data lines simultaneously and sequentially according to the fourth driving time sequence table.
Further, the step of forming a fourth driving timing table of each data line corresponding to each even-numbered scanning line based on the image timing data of the K +1 th frame picture is: and sequentially extracting even-numbered row data from the image time sequence data of the K +1 frame picture, and arranging the even-numbered row data to form the fourth driving time sequence table.
Further, in a K-th frame, a data driving signal output to each data line of the display panel has a first polarity; in the (K + 1) th frame, the data driving signals output to the data lines of the display panel have a second polarity, wherein the first polarity is opposite to the second polarity.
The invention has the following beneficial effects: in two adjacent frames, one frame only outputs scanning driving signals to each odd-numbered scanning line of the display panel, so that pixel units corresponding to each odd-numbered scanning line on the display panel are charged to refresh the frame, the other frame only outputs scanning driving signals to even-numbered scanning lines of the display panel, so that pixel units corresponding to each even-numbered scanning line on the display panel are charged to refresh the frame, the number of times of outputting the scanning driving signals by the grid driver in each frame is reduced by half, and the number of times of outputting data driving signals by the source driver in each frame is reduced by half, so that the driving energy consumption of the display panel is greatly reduced; meanwhile, the number of the refreshed pixels in each frame is reduced by half, so that the refreshing frequency can be doubled, or the single charging time can be prolonged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is an equivalent circuit diagram of a conventional display panel;
FIG. 2 is a timing diagram illustrating the driving of scan lines and data lines of a conventional display panel;
FIG. 3 is a block diagram illustrating a gate driving method according to the present invention;
fig. 4 is a timing diagram illustrating driving of each scan line and each data line in the gate driving method according to the present invention;
FIG. 5 is a block diagram of a step 100 of the gate driving method shown in FIG. 3;
fig. 6 is a block diagram of step 200 in the gate driving method shown in fig. 3.
Detailed Description
The invention is described in detail below with reference to the drawings and embodiments, examples of which are illustrated in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functionality throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example one
As shown in fig. 1, a display panel includes a plurality of scan lines G, a plurality of data lines D, and a plurality of pixel units P electrically connected to the scan lines G and the data lines D; the scanning lines G extend along the transverse direction, and all the scanning lines G are arranged in parallel along the longitudinal direction; the data lines D extend along the longitudinal direction, and the data lines D are arranged in parallel along the transverse direction; each pixel unit P includes a thin film transistor including a gate electrode, a source electrode, and a drain electrode, the gate electrode of the thin film transistor being electrically connected to the corresponding scan line G, the source electrode of the thin film transistor being electrically connected to the corresponding data line D, and the drain electrode of the thin film transistor being electrically connected to the corresponding pixel electrode.
When the grid electrode of the thin film transistor obtains a scanning driving signal from a corresponding scanning line G, the source electrode and the drain electrode of the thin film transistor are internally conducted, at the moment, the source electrode of the thin film transistor can transmit a data driving signal obtained from a corresponding data line D to the drain electrode of the thin film transistor, and the drain electrode of the thin film transistor transmits the data driving signal to a corresponding pixel electrode, so that the corresponding pixel electrode is charged to refresh a picture.
The display panel further comprises a driving module, wherein the driving module comprises a grid electrode driver and a source electrode driver, the grid electrode driver is electrically connected with each scanning line G to output scanning driving signals to each scanning line G, and the source electrode driver is electrically connected with each data line D to output data driving signals to each data line D.
Example two
As shown in fig. 3, a gate driving method can be applied, but not limited to, the display panel described in the first embodiment, where the scan lines of the display panel include a plurality of odd scan lines and a plurality of even scan lines; as shown in fig. 4, the gate driving method includes the following steps:
step 100: in a Kth frame picture, sequentially outputting scanning driving signals to each odd-numbered row of scanning lines of the display panel;
step 200: and in a K +1 frame picture, sequentially outputting scanning driving signals to each even-numbered scanning line of the display panel, wherein K is a natural number.
In two adjacent frames, one frame only outputs scanning driving signals to each odd-numbered scanning line of the display panel, so that pixel units P corresponding to each odd-numbered scanning line on the display panel are charged to refresh the frame, the other frame only outputs scanning driving signals to even-numbered scanning lines of the display panel, so that pixel units P corresponding to each even-numbered scanning line on the display panel are charged to refresh the frame, the number of times of outputting the scanning driving signals by the grid driver in each frame is reduced by half, and the number of times of outputting data driving signals by the source driver in each frame is reduced by half, so that the driving energy consumption of the display panel is greatly reduced; meanwhile, the number of the refreshed pixels in each frame is reduced by half, so that the refreshing frequency can be doubled, or the single charging time can be prolonged.
In the K-th frame, the scanning driving signal is not output to each even-numbered scanning line of the display panel, and in the K + 1-th frame, the scanning driving signal is not output to each odd-numbered scanning line of the display panel.
That is, the pixel units P corresponding to each odd-numbered row of scanning lines on the display panel are not charged and refreshed in the same frame of picture between the pixel units P corresponding to the even-numbered row of scanning lines.
EXAMPLE III
As an optimization scheme of the second embodiment, in this embodiment, as shown in fig. 4 and 5, in the kth frame picture, the steps of sequentially outputting the scan driving signals to the scan lines of the odd rows of the display panel are as follows:
The driving timing data acquired in step 110a is timing data in which the gate driver sequentially outputs the scanning driving signals to the respective scanning lines without being divided into odd and even numbers. Assuming that the display panel has n scan lines, which are respectively represented by G1, G2, G3, G4 \8230, \8230, gn-1, gn, and n is a natural number, the acquired driving timing data is the timing data of the scanning driving signals sequentially output to the gate driver to the scan lines G1, G2, G3, G4 \8230, \8230, gn-1, gn in each frame of the picture.
The first driving timing table determined in step 120a only includes timing data at which the gate driver sequentially outputs the scanning driving signals to the respective odd-numbered scanning lines. The display panel is assumed to have n scanning lines, which are respectively represented by G1, G2, G3, G4 \8230- \8230, gn-1 and Gn, wherein n is a natural number, each odd-numbered line scanning line is G1, G3, G5 \8230- \8230, gn-1, and the first driving time sequence table is a time sequence table for outputting scanning driving signals to the odd-numbered line scanning lines G1, G3, G5 \8230andGn-1 in sequence in a K-th frame picture by the gate driver.
Specifically, the step of forming the first driving timing schedule of each odd-numbered scanning line according to the driving timing data of each scanning line is as follows: and extracting odd row data from the driving time sequence data of each scanning line, and arranging the odd row data to form the first driving time sequence table.
In the grid driver, each output port electrically connected with each scanning line is written with a port serial number for addressing the corresponding scanning line during driving, and when odd-numbered data is extracted from the driving time sequence data, the odd-numbered data corresponding to each odd-numbered scanning line can be determined according to the port serial number.
In the driving timing data, even-numbered line data corresponding to each even-numbered scanning line may be subjected to deletion or masking processing.
In step 130a, assuming that the display panel has n scan lines, which are respectively represented by G1, G2, G3, G4 \8230 \ 82308230, gn-1, gn, and n is a natural number, the gate driver sequentially outputs scan drive signals to the odd-numbered scan lines G1, G3, G5 \8230 \ 8230and Gn-1 according to the first drive timing schedule in the K-th frame screen.
Wherein, in the kth frame, when the scanning driving signal is sequentially output to each odd-numbered line of the display panel, the method further comprises: and sequentially and simultaneously outputting data driving signals corresponding to each odd-numbered scanning line to each data line of the display panel.
Assuming that the display panel has m data lines, which are respectively represented by D1, D2, D3, D4 \8230, 8230, dm-1 and Dm, wherein m is a natural number, after a scanning driving signal is output to the odd-numbered row scanning line G1 of the display panel, the data driving signal corresponding to the odd-numbered row scanning line G1 is output to the data lines D1, D2, D3, D4 \8230, dm-1 and Dm of the display panel, so that the pixel units P corresponding to the odd-numbered row scanning line G1 are simultaneously charged and refreshed; then, after outputting a scanning driving signal to the odd-numbered row scanning line G3 of the display panel, simultaneously outputting a data driving signal corresponding to the odd-numbered row scanning line G3 to each data line D1, D2, D3, D4 \ 8230 \8230, dm-1, dm of the display panel, so as to simultaneously charge and refresh the pixel units P corresponding to the odd-numbered row scanning line G3; then, after outputting a scan driving signal to the odd row scan line G5 of the display panel, simultaneously outputting a data driving signal corresponding to the odd row scan line G5 to the data lines D1, D2, D3, D4 \8230, dm-1, dm of the display panel, so as to simultaneously charge and refresh the pixel cells P corresponding to the odd row scan line G5, 8230and gngn-1 of the display panel, sequentially repeating the steps until outputting a scan driving signal to the odd row scan line Gn-1 of the display panel, simultaneously outputting a data driving signal corresponding to the odd row scan line Gn-1 to simultaneously charge and refresh the pixel cells P corresponding to the odd row scan line Gn-1 of the display panel, thereby completing the refresh of the K-th frame.
Specifically, in the kth frame, the step of sequentially and simultaneously outputting the data driving signals corresponding to the odd-numbered scan lines to the data lines of the display panel is as follows:
The image timing data acquired in step 110b is timing data in which the source driver simultaneously outputs data driving signals to the data lines in sequence without dividing the serial numbers of the scan lines into odd and even numbers in the K-th frame. If the display panel has n scanning lines, which are respectively represented by G1, G2, G3, G4, 8230, gn-1, gn, and n is a natural number, the source driver simultaneously outputs a data driving signal corresponding to the scanning line G1 to the data lines when the scanning line G1 outputs a scanning driving signal, the source driver simultaneously outputs a data driving signal corresponding to the scanning line G2 to the data lines when the scanning line G2 outputs a scanning driving signal, and the source driver simultaneously outputs a data driving signal 8230corresponding to the scanning line G3 to the data lines when the scanning line G3 outputs a scanning driving signal.
The third driving timing table formed in step 120b only includes timing data for the source driver to sequentially and simultaneously output the data driving signals corresponding to the odd-numbered scan lines to the data lines. Assuming that the display panel has n scanning lines, G1, G2, G3, G4, 8230, gn-1 and Gn indicate that n is a natural number, each odd-numbered row scanning line is G1, G3, G5, 8230, gn-30and Gn-1, the third driving timing table is Gn-1, the source driver simultaneously outputs data driving signals corresponding to the odd-numbered row scanning lines G1 to the data lines when the odd-numbered row scanning lines G1 are output scanning driving signals in a K-th frame picture, the source driver simultaneously outputs data driving signals corresponding to the odd-numbered row scanning lines G3 to the data lines when the odd-numbered row scanning lines G3 are output scanning driving signals, and the source driver simultaneously outputs data driving signals corresponding to the odd-numbered row scanning lines G5 to the data lines Gn-1 when the odd-numbered row scanning lines G5 are output scanning driving signals, and the source driver simultaneously outputs the data driving signals corresponding to the odd-numbered data lines 82301 to the data lines Gn-numbered data lines when the odd-numbered row scanning driving signals are output by the odd-numbered line scanning lines G5, the source driver simultaneously outputs the data driving signals corresponding to the Gn-numbered data lines 82301 and the Gn-numbered lines in the Gn-numbered line driving table.
Specifically, the step of forming the third driving timing schedule of each data line corresponding to each odd-numbered scanning line according to the image timing data of the kth frame picture is as follows: and extracting odd row data from the image time sequence data of the Kth frame picture, and arranging the odd row data to form the third driving time sequence table.
In the image timing data of the K-th frame, the data driving signals are arranged in n rows and m columns, wherein each odd row of data corresponds to the data driving signals of each pixel unit P on each odd row of scanning lines, and each even row of data corresponds to the data driving signals of each pixel unit P on each even row of scanning lines.
In the image time sequence data of the K frame picture, even line data corresponding to each even line scanning line can be deleted or masked.
In step 130b, assuming that the display panel has m data lines, which are respectively represented by D1, D2, D3, D4 \8230 \ 8230dm-1, dm, where m is a natural number, after outputting a scan driving signal to the odd row scanning line G1 of the display panel, the data driving signals corresponding to the odd row scanning line G1 are simultaneously output to the data lines D1, D2, D3, D4 \8230 \ 8230, dm-1, dm, so as to simultaneously charge and refresh the pixel units P corresponding to the odd row scanning line G1; then, after outputting a scanning driving signal to the odd row scanning line G3 of the display panel, outputting a data driving signal corresponding to the odd row scanning line G3 to each data line D1, D2, D3, D4 \8230, dm-1, dm of the display panel simultaneously, so as to charge and refresh the pixel cells P corresponding to the odd row scanning line G3 simultaneously; then, after outputting a scanning driving signal to the odd row scanning line G5 of the display panel, simultaneously outputting a data driving signal corresponding to the odd row scanning line G5 to each data line D1, D2, D3, D4 \8230 \ 8230823030 \ Dm-1, dm of the display panel, so as to simultaneously charge and refresh the pixel units P corresponding to the odd row scanning line G5 by 8230 \ gns, and by analogy to the odd row scanning line Gn-1 of the display panel, simultaneously outputting a data driving signal corresponding to the odd row scanning line Gn-1 to each data line D1, D2, D3, D4 \\ \ 8230 \ Gn \ Dm-1, dm of the display panel, so as to simultaneously charge and refresh the pixel units P corresponding to the odd row scanning line Gn-1, thereby completing the refreshing of the picture of the kth frame.
Example four
As an optimized solution of the second embodiment or the third embodiment, in this embodiment, as shown in fig. 4 and 6, in the K +1 th frame, the steps of sequentially outputting the scan driving signals to the scan lines of the even-numbered rows of the display panel are as follows:
The driving timing data acquired in step 210a is timing data in which the gate driver sequentially outputs the scanning driving signals to the respective scanning lines without being divided into odd and even numbers. Assuming that the display panel has n scan lines, which are respectively represented by G1, G2, G3, G4 \8230 \ 8230:, gn-1, gn, and n is a natural number, the acquired driving timing data is timing data in which the gate driver sequentially outputs scanning driving signals to the respective scan lines G1, G2, G3, G4 \8230 \, 8230:, gn-1, gn in each frame of the screen.
The second driving timing table determined in step 220a includes timing data at which the gate driver sequentially outputs the scanning driving signals to the even-numbered scanning lines. If the display panel has n scan lines, which are respectively represented by G1, G2, G3, G4 \8230 \ 8230 \ Gn-1, gn, and n is a natural number, then each even-numbered row scan line is G2, G4, G6 \8230 \ 8230 \8230 \ Gn, and the second drive timing table is a timing table in which the gate driver sequentially outputs scan drive signals to the even-numbered row scan lines G2, G4, G6 \8230 \ Gn in the K +1 th frame.
Specifically, the step of forming the second driving timing table for each even-numbered scanning line according to the driving timing data of each scanning line is as follows: and extracting even-numbered row data from the driving time sequence data of each scanning line, and arranging the even-numbered row data to form the second driving time sequence table.
In the grid driver, each output port electrically connected with each scanning line is written with a port serial number for addressing the corresponding scanning line during driving, and even-numbered line data corresponding to each even-numbered scanning line can be determined according to the port serial numbers when even-numbered line data are extracted from the driving time sequence data.
In the driving timing data, odd-numbered line data corresponding to each odd-numbered scanning line may be subjected to deletion or masking.
In step 230a, assuming that the display panel has n scan lines, which are respectively represented by G1, G2, G3, and G4 \8230 \ 8230, gn-1, and Gn, and n is a natural number, the gate driver sequentially outputs scan driving signals to the even-numbered scan lines G2, G4, and G6 \8230 \ 8230and Gn according to the second driving timing schedule in the K +1 th frame.
Wherein, in the (K + 1) th frame, when outputting the scanning driving signal to each even-numbered line of the display panel in turn, the method further comprises: and sequentially and simultaneously outputting data driving signals corresponding to the even-numbered scanning lines to the data lines of the display panel.
Assuming that the display panel has m data lines, which are respectively represented by D1, D2, D3, D4 \8230' \8230, dm-1 and Dm, where m is a natural number, after outputting a scan driving signal to an even-numbered row scan line G2 of the display panel, the display panel simultaneously outputs a data driving signal corresponding to the even-numbered row scan line G2 to simultaneously charge and refresh pixel cells P corresponding to the even-numbered row scan line G2; then, after outputting a scanning driving signal to an even-numbered row scanning line G4 of the display panel, simultaneously outputting a data driving signal corresponding to the even-numbered row scanning line G4 to each data line D1, D2, D3, D4 \8230 \ 8230, dm-1, dm of the display panel, so as to simultaneously charge and refresh the pixel units P corresponding to the even-numbered row scanning line G4; then, after outputting the scan driving signal to the even row scanning line G6 of the display panel, the data driving signals corresponding to the even row scanning line G6 are simultaneously output to the data lines D1, D2, D3, D4 \8230 \ 82308230 \ Dm-1, dm of the display panel, so that the pixel cells P corresponding to the even row scanning line G6 are simultaneously charged and refreshed 8230, and \823030, and so on, after outputting the scan driving signal to the even row scanning line Gn of the display panel, the data driving signals corresponding to the even row scanning line Gn are simultaneously output to the data lines D1, D2, D3, D4 8230 \ Dm-1, dm, gn, so that the pixel cells P corresponding to the even row scanning line Gn are simultaneously charged and refreshed, and the picture refreshing of the K +1 th frame is completed.
Specifically, in the K +1 th frame, the step of sequentially and simultaneously outputting the data driving signals corresponding to the even-numbered scan lines to the data lines of the display panel is as follows:
The image timing data acquired in step 210b is timing data in which the source driver simultaneously outputs data driving signals to the respective data lines in sequence without dividing the serial numbers of the scan lines into odd and even numbers in the K +1 th frame. If the display panel has n scan lines, which are respectively represented by G1, G2, G3, G4 \8230 \ 8230 \ -Gn-1, gn, and n is a natural number, normal image timing data is in a K +1 frame screen, the source driver simultaneously outputs a data driving signal corresponding to the scan line G1 to each data line when the scan line G1 is supplied with a scan driving signal, the source driver simultaneously outputs a data driving signal corresponding to the scan line G2 to each data line when the scan line G2 is supplied with a scan driving signal, the source driver simultaneously outputs a data driving signal Gn 8230 \\ 8230 \ to each data line when the scan line G3 is supplied with a scan driving signal, and the source driver simultaneously outputs timing data corresponding to the scan line Gn 3 to each data line when the scan line G3 is supplied with a scan driving signal.
The fourth driving timing table formed in step 220b includes timing data at which the source driver sequentially and simultaneously outputs data driving signals corresponding to even-numbered scan lines to the data lines. Assuming that the display panel has n scanning lines, G1, G2, G3, G4, 8230, gn-1 and Gn indicate that n is a natural number, even-numbered scanning lines are G2, G4 and G6, 8230, gn 8230and Gn indicate that Gn-1 and Gn indicate that n is a natural number, the fourth driving timing table is a K +1 frame, the source driver simultaneously outputs data driving signals corresponding to the even-numbered scanning lines G2 to the data lines when the even-numbered scanning lines G2 are output scanning driving signals, the source driver simultaneously outputs data driving signals corresponding to the even-numbered scanning lines G4 to the data lines when the even-numbered scanning lines G4 are output scanning driving signals, and the source driver simultaneously outputs data driving signals corresponding to the even-numbered scanning lines G6 to the data lines Gn-numbered data lines when the even-numbered scanning lines G6 are output scanning driving signals, and the source driver simultaneously outputs data driving signals corresponding to the even-numbered data lines 8230signals to the data lines when the even-numbered scanning lines G6 are output the scanning driving signals.
Specifically, the step of forming a fourth driving timing chart of each data line corresponding to each even-numbered scanning line according to the image timing data of the K +1 th frame picture is as follows: and extracting even line data from the image time sequence data of the frame K +1, and arranging the even line data to form the fourth driving time sequence table.
In the image timing data of the frame (K + 1) th frame, the data driving signals are arranged in n rows and m columns, wherein each even row of data corresponds to the data driving signals of each pixel unit (P) on each even row of scanning lines, and each odd row of data corresponds to the data driving signals of each pixel unit (P) on each odd row of scanning lines.
In the image time sequence data of the frame K +1, the odd line data corresponding to each odd line scanning line can be deleted or masked.
In step 230b, assuming that the display panel has m data lines, which are respectively represented by D1, D2, D3, D4 \8230 \ 8230dm-1, dm, where m is a natural number, after outputting a scan driving signal to the even-numbered row scanning line G2 of the display panel, a data driving signal corresponding to the even-numbered row scanning line G2 is simultaneously output to each of the data lines D1, D2, D3, D4 \8230 \8230dm-1, dm, so that the pixel cells P corresponding to the even-numbered row scanning line G2 are simultaneously charged and refreshed; then, after outputting a scanning driving signal to an even-numbered row scanning line G4 of the display panel, simultaneously outputting a data driving signal corresponding to the even-numbered row scanning line G4 to each data line D1, D2, D3, D4 \8230 \ 8230; dm-1, dm of the display panel, so as to simultaneously charge and refresh the pixel units P corresponding to the even-numbered row scanning line G4; then, after outputting the scan driving signal to the even row scanning line G6 of the display panel, the data driving signals corresponding to the even row scanning line G6 are simultaneously output to the data lines D1, D2, D3, D4 \8230 \ 82308230 \ Dm-1, dm of the display panel, so that the pixel cells P corresponding to the even row scanning line G6 are simultaneously charged and refreshed 8230, and \823030, and so on, after outputting the scan driving signal to the even row scanning line Gn of the display panel, the data driving signals corresponding to the even row scanning line Gn are simultaneously output to the data lines D1, D2, D3, D4 8230 \ Dm-1, dm, gn, so that the pixel cells P corresponding to the even row scanning line Gn are simultaneously charged and refreshed, and the picture refreshing of the K +1 th frame is completed.
EXAMPLE five
As an optimization solution of the second, third or fourth embodiment, in this embodiment, as shown in fig. 4, in the kth frame, the data driving signals output to the data lines of the display panel have a first polarity; in the (K + 1) th frame, the data driving signals output to the data lines of the display panel have a second polarity, wherein the first polarity is opposite to the second polarity.
Specifically, in the K-th frame, the data driving signals output to the data lines of the display panel are positive polarity signals, i.e., positive voltages, in the K + 1-th frame, the data driving signals output to the data lines of the display panel are negative polarity signals, i.e., negative voltages, or vice versa, in the K-th frame, the data driving signals output to the data lines of the display panel are negative polarity signals, i.e., negative voltages, and in the K + 1-th frame, the data driving signals output to the data lines of the display panel are positive polarity signals, i.e., positive voltages.
When the driving method is used for picture overloading, the source driver only needs to change the polarity of the data driving signal once between two adjacent frames of pictures, so that the requirement that the pixel units P on each odd-numbered scanning line and the pixel units P on each even-numbered scanning line have opposite voltage polarities is met during picture overloading, the polarity change frequency during data driving signal output is greatly reduced, and the driving energy consumption of the display panel is greatly reduced.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A grid driving method of a display panel comprises a plurality of scanning lines, wherein each scanning line comprises a plurality of odd-numbered scanning lines and a plurality of even-numbered scanning lines; the grid driving method is characterized by comprising the following steps of:
in a Kth frame of picture, sequentially outputting scanning driving signals to each odd-numbered scanning line of the display panel;
and in a K +1 frame picture, sequentially outputting scanning driving signals to each even-numbered scanning line of the display panel, wherein K is a natural number.
2. The gate driving method of the display panel according to claim 1, wherein the step of sequentially outputting the scanning driving signal to each odd-numbered line or each even-numbered line of the display panel is as follows:
acquiring driving time sequence data of each scanning line;
forming a first driving time sequence table of each odd-numbered scanning line or a second driving time sequence table of each even-numbered scanning line according to the driving time sequence data of each scanning line;
and sequentially outputting scanning driving signals to each odd-numbered line of scanning lines according to the first driving time sequence table, or sequentially outputting scanning driving signals to each even-numbered line of scanning lines according to the second driving time sequence table.
3. The gate driving method of the display panel according to claim 2, wherein the step of forming a first driving timing table for each odd-numbered scanning line or a second driving timing table for each even-numbered scanning line according to the driving timing data of each scanning line comprises: and extracting odd-numbered row data from the driving time sequence data of each scanning line, and arranging the odd-numbered row data to form the first driving time sequence table, or extracting even-numbered row data to arrange the even-numbered row data to form the second driving time sequence table.
4. The gate driving method of the display panel according to claim 1, wherein the display panel further comprises a plurality of data lines; in the K-th frame, when the scanning driving signal is sequentially output to each odd-numbered scanning line of the display panel, the method further includes: and sequentially and simultaneously outputting data driving signals corresponding to the odd-numbered scanning lines to the data lines of the display panel.
5. The gate driving method of the display panel according to claim 4, wherein the step of sequentially outputting the data driving signals corresponding to the odd-numbered scan lines to the data lines of the display panel at the same time in the Kth frame is as follows:
acquiring image time sequence data of a Kth frame of picture;
forming a third driving time sequence table of each data line corresponding to each odd-numbered scanning line according to the image time sequence data of the Kth frame picture;
and sequentially outputting data driving signals to all the data lines simultaneously according to the third driving time sequence table.
6. The gate driving method of the display panel according to claim 5, wherein the step of forming a third driving timing table for each data line corresponding to each odd-numbered scanning line based on the image timing data of the K-th frame picture comprises: and extracting odd line data from the image time sequence data of the Kth frame picture, and arranging the odd line data to form the third driving time sequence table.
7. The gate driving method of the display panel according to claim 1, wherein the display panel further comprises a plurality of data lines; in the K +1 th frame, when the scanning driving signal is sequentially output to each even-numbered scanning line of the display panel, the method further includes: and sequentially and simultaneously outputting data driving signals corresponding to the even-numbered scanning lines to the data lines of the display panel.
8. The gate driving method of the display panel according to claim 7, wherein the step of sequentially outputting the data driving signals corresponding to the even-numbered scanning lines to the data lines of the display panel at the same time in the K +1 frame is as follows:
acquiring image time sequence data of a K +1 frame picture;
forming a fourth driving time sequence table of each data line corresponding to each even-numbered scanning line according to the image time sequence data of the K +1 th frame picture;
and outputting data driving signals to all the data lines simultaneously and sequentially according to the fourth driving time sequence table.
9. The gate driving method of the display panel according to claim 8, wherein the step of forming a fourth driving timing table for each data line corresponding to each even-numbered scanning line based on the image timing data of the K +1 th frame picture comprises: and sequentially extracting even-numbered row data from the image time sequence data of the K +1 frame picture, and arranging the even-numbered row data to form the fourth driving time sequence table.
10. The gate driving method of the display panel according to any one of claims 4 to 9, wherein in a K-th frame, the data driving signal outputted to each data line of the display panel has a first polarity; in the (K + 1) th frame, the data driving signals output to the data lines of the display panel have a second polarity, wherein the first polarity is opposite to the second polarity.
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| CN1532601A (en) * | 2003-03-20 | 2004-09-29 | ������������ʽ���� | Liquid crystal display device and its driving method |
| CN101458915A (en) * | 2009-01-09 | 2009-06-17 | 友达光电股份有限公司 | Liquid crystal display panel driving method |
| CN112599101A (en) * | 2020-12-18 | 2021-04-02 | 京东方科技集团股份有限公司 | Driving method and device and display device |
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| CN1532601A (en) * | 2003-03-20 | 2004-09-29 | ������������ʽ���� | Liquid crystal display device and its driving method |
| CN101458915A (en) * | 2009-01-09 | 2009-06-17 | 友达光电股份有限公司 | Liquid crystal display panel driving method |
| CN112599101A (en) * | 2020-12-18 | 2021-04-02 | 京东方科技集团股份有限公司 | Driving method and device and display device |
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