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CN104361877B - The driving method of a kind of display floater, its driving means and display device - Google Patents

The driving method of a kind of display floater, its driving means and display device Download PDF

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Publication number
CN104361877B
CN104361877B CN201410748706.6A CN201410748706A CN104361877B CN 104361877 B CN104361877 B CN 104361877B CN 201410748706 A CN201410748706 A CN 201410748706A CN 104361877 B CN104361877 B CN 104361877B
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grid line
nth
grid
gate
line
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CN104361877A (en
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胡巍浩
周健
杨建�
尹大根
邵喜斌
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Abstract

The invention discloses the driving method of a kind of display floater, its driving means and display device, all of grid line is divided into multiple grid line group according to the scanning sequency of grid line by display floater, when this display floater is driven, first determine nth bar grid line the most to be scanned;Then the maintenance duration of the scanning signal corresponding with nth bar grid line is adjusted and export to nth bar grid line to the preset duration corresponding with nth bar grid line;Due to the preset duration that each grid line in each grid line group is corresponding, and the average length positive correlation of cabling between each grid line and gate drivers in this grid line group, therefore, for the grid line that cabling is longer inputted scanning signal hold time relatively long, for the grid line that cabling is shorter inputted scanning signal hold time relatively short, such that it is able to compensate owing to uneven the caused different pixels row charge rate of trace resistances is different, and then improve the uniformity that display floater display surface is drawn.

Description

Driving method and driving device of display panel and display device
Technical Field
The present invention relates to the field of display technologies, and in particular, to a driving method of a display panel, a driving device thereof, and a display device.
Background
In the modern age with the increasing development of technology, Liquid Crystal Displays (LCD) have been widely used in electronic Display products, such as televisions, computers, mobile phones, and personal digital assistants. As shown in fig. 1, the lcd generally includes a clock controller 01, a data Driver 02, a Gate Driver 03, a display panel 04, and the like. The display panel 04 has a pixel array and a plurality of gate lines, and the clock controller 01 is configured to output a clock signal CPV, an enable signal OE, and a frame trigger signal STV to the gate driver 03 to control the gate driver 03 to sequentially charge corresponding pixel lines in the pixel array through the corresponding gate lines, so as to transmit pixel data output by the data driver 02 to the corresponding pixels, and further display an image to be displayed.
Specifically, a timing chart of the clock signal CPV, the enable signal OE and the frame trigger signal STV input to the Gate driver by the clock controller is shown in fig. 2, where the frame trigger signal STV indicates a start signal for scanning each frame image, the number of cycles of the clock signal CPV indicates the number of times of charging for scanning one frame image, and in each cycle of the clock signal CPV, the Gate driver charges a pixel row only when the enable signal OE is in an on state (in fig. 2, the enable signal OE is at a low potential), that is, a duration of a scan signal output by the Gate driver to each Gate line Gate N (N is greater than or equal to 1 and less than or equal to N, and N is the number of all Gate lines) is equal to an on duration of the corresponding enable signal OE.
In the conventional liquid crystal display, the enable signal OE is turned on for the same duration every period of the clock signal CPV. However, due to the narrow frame design of the liquid crystal display device, the gate driver is generally disposed at the middle position of the side frame of the display panel, so that equal-resistance routing cannot be performed between each gate line and the gate driver, that is, routing between the gate line near the middle position and the gate driver is short and has small resistance, and routing between the gate line near the two side edges and the gate driver is long and has large resistance.
Therefore, although the on-time widths of the enable signals received by the gate drivers for each pixel row are the same, since the routing resistances between the gate lines at different positions and the gate drivers are different, the charging rate of the pixel row corresponding to the gate line with the smaller routing resistance is high, and the charging rate of the pixel row corresponding to the gate line with the higher routing resistance is low, so that the display is not uniform.
Disclosure of Invention
In view of this, embodiments of the present invention provide a driving method of a display panel, a driving device thereof, and a display device, so as to solve the problem of non-uniform display caused by non-uniform routing resistance between each gate line and a gate driver in the prior art.
Therefore, in the driving method of the display panel provided in the embodiment of the present invention, the display panel has N gate lines, each gate line is connected to the gate driver through a corresponding trace, and all the gate lines are divided into a plurality of gate line groups according to the scanning sequence of the gate lines, where each gate line group at least includes one gate line; the driving method includes:
determining the nth grid line to be scanned currently, wherein N is more than or equal to 1 and less than or equal to N;
adjusting the maintaining time length of a scanning signal corresponding to the nth grid line to a preset time length corresponding to the nth grid line and then outputting the preset time length to the nth grid line;
the preset time length corresponding to each grid line in each grid line group is equal, and the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of routing between each grid line in the grid line group and the grid driver.
Preferably, in the driving method provided by the embodiment of the present invention, in all the gate line groups, the preset time duration corresponding to the gate line in the gate line group with the smallest average length of the wires is not less than the time duration required for enabling the charging rate of the pixel corresponding to the gate line in the gate line group with the smallest length of the wires between the gate drivers to reach 100%.
Preferably, in the driving method provided by the embodiment of the present invention, in all the gate line groups, the preset time duration corresponding to the gate line in the gate line group with the largest average length of the routing lines does not exceed 1/N of one frame image time.
Preferably, in the driving method provided by the embodiment of the present invention, the number of the gate lines in each gate line group is equal.
Specifically, in the driving method provided in the embodiment of the present invention, determining an nth gate line to be scanned currently, adjusting a duration of a scan signal corresponding to the nth gate line to a preset duration corresponding to the nth gate line, and outputting the scan signal to the nth gate line, specifically includes:
when a frame starting signal is received, starting to record the number of cycles, and counting once every time a clock signal of one cycle is received;
when recording one period number, comparing the recorded period number with a pre-established period number and a corresponding table of the n grid line and the opening time width of the enabling signal corresponding to the n grid line, and determining the opening time width of the target enabling signal corresponding to the n grid line to be scanned;
according to the determined starting time width of the target enabling signal corresponding to the nth grid line to be scanned currently, the time width of the initial enabling signal received currently is adjusted to the determined starting time width of the target enabling signal, and the target enabling signal corresponding to the nth grid line to be scanned currently is generated;
according to a generated target enabling signal corresponding to an nth grid line to be scanned currently, adjusting the maintaining time of a scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line, and then outputting the preset time to the nth grid line; the preset time length corresponding to the scanning signal of the nth grid line is equal to the opening time width of the target enabling signal corresponding to the nth grid line.
Accordingly, in the driving apparatus of a display panel provided in an embodiment of the present invention, the display panel has N gate lines, each gate line is connected to a gate driver through a corresponding trace, and all gate lines are divided into a plurality of gate line groups according to a scanning sequence of the gate lines, where each gate line group at least includes one gate line;
the driving device is used for determining the nth grid line to be scanned currently, wherein N is more than or equal to 1 and less than or equal to N; adjusting the maintaining time length of a scanning signal corresponding to the nth grid line to a preset time length corresponding to the nth grid line and then outputting the preset time length to the nth grid line; the preset time length corresponding to each grid line in each grid line group is equal, and the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of routing between each grid line in the grid line group and the grid driver.
Preferably, in the driving device provided in the embodiment of the present invention, in all the gate line groups, a preset time duration corresponding to a gate line in the gate line group with the smallest average length of the wires is not less than a time duration required for enabling a charging rate of a pixel corresponding to a gate line in the gate line group with the smallest length of the wires between the gate drivers to reach 100%.
Preferably, in the driving device provided in the embodiment of the present invention, in all the gate line groups, the preset time duration corresponding to the gate line in the gate line group with the largest average length of the routing lines does not exceed 1/N of one frame image time.
Specifically, the driving device provided in the embodiment of the present invention specifically includes: a gate driver, a clock controller and a signal adjusting unit; wherein,
the clock controller is used for sending a frame start signal, a clock signal and an initial enable signal to the signal adjusting unit;
the signal adjusting unit is used for starting to record the number of periods when receiving a frame starting signal, and then counting once every time a clock signal of one period is received; when recording one period number, comparing the recorded period number with a pre-established period number and a corresponding table of the n grid line and the opening time width of the enabling signal corresponding to the n grid line, and determining the opening time width of the target enabling signal corresponding to the n grid line to be scanned; adjusting the time width of a currently received initial enable signal to the determined starting time width of the target enable signal according to the determined starting time width of the target enable signal corresponding to the nth grid line to be scanned currently, generating the target enable signal corresponding to the nth grid line to be scanned currently, and sending the target enable signal to the grid driver;
the grid driver is used for adjusting the maintaining time of a scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and outputting the preset time to the nth grid line according to a received target enabling signal corresponding to the nth grid line to be scanned; the preset time length corresponding to the scanning signal of the nth grid line is equal to the opening time width of the target enabling signal corresponding to the nth grid line.
Correspondingly, an embodiment of the present invention further provides a display device, including: a display panel and a driving device; wherein,
the display panel is provided with N grid lines, each grid line is connected with the grid driver through corresponding routing, and all the grid lines are divided into a plurality of grid line groups according to the scanning sequence of the grid lines, wherein each grid line group at least comprises one grid line;
the driving device is any one of the driving devices provided by the embodiment of the invention.
According to the driving method, the driving device and the display device of the display panel provided by the embodiment of the invention, the display panel divides all grid lines into a plurality of grid line groups according to the scanning sequence of the grid lines, and when the display panel is driven, the nth grid line to be scanned currently is determined; then adjusting the maintaining time of the scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and outputting the preset time to the nth grid line; because the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of the routing between each grid line in the grid line group and the grid driver, the maintenance time of the scanning signal input by the grid line with longer routing is relatively longer, and the maintenance time of the scanning signal input by the grid line with shorter routing is relatively shorter, so that different pixel row charging rates caused by uneven routing resistance can be compensated, and the uniformity of the display surface picture of the display panel is improved.
Drawings
FIG. 1 is a schematic diagram of a conventional LCD;
FIG. 2 is a timing diagram of signals input to a gate driver by a conventional clock controller;
fig. 3 is a schematic flowchart of a driving method of a display panel according to an embodiment of the invention;
fig. 4 is a schematic flowchart illustrating a driving method of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a driving device according to an embodiment of the present invention.
Detailed Description
The following describes in detail a driving method of a display panel, a driving device thereof, and a display device according to embodiments of the present invention with reference to the accompanying drawings.
In the driving method of the display panel provided by the embodiment of the invention, the display panel is provided with N grid lines, each grid line is connected with a grid driver through a corresponding routing, and all the grid lines are divided into a plurality of grid line groups according to the scanning sequence of the grid lines, wherein each grid line group at least comprises one grid line; as shown in fig. 3, the driving method may include the steps of:
s301, determining the nth grid line to be scanned currently, wherein N is more than or equal to 1 and less than or equal to N;
s302, adjusting the maintaining time of the scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and then outputting the preset time to the nth grid line; the preset time length corresponding to each grid line in each grid line group is equal, and the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of routing between each grid line in the grid line group and the grid driver.
In the driving method provided by the embodiment of the invention, the display panel divides all the gate lines into a plurality of gate line groups according to the scanning sequence of the gate lines, and when the display panel is driven, the nth gate line to be scanned currently is determined; then adjusting the maintaining time of the scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and outputting the preset time to the nth grid line; because the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of the routing between each grid line in the grid line group and the grid driver, the maintenance time of the scanning signal input by the grid line with longer routing is relatively longer, and the maintenance time of the scanning signal input by the grid line with shorter routing is relatively shorter, so that different pixel row charging rates caused by uneven routing resistance can be compensated, and the uniformity of the display surface picture of the display panel is improved.
It should be noted that, in the driving method provided in the embodiment of the present invention, the average length of the traces between each gate line in each gate line group and the gate driver is an average value of lengths of the traces corresponding to all the gate lines in the same gate line group, and generally, the average length of the trace corresponding to the gate line group which is farther away from the gate driver is larger, and the average length of the trace corresponding to the gate line group which is closer to the gate driver is smaller.
Preferably, in the driving method provided by the embodiment of the present invention, in all the gate line groups, the preset time duration corresponding to the gate line in the gate line group with the smallest average length of the wires is not less than the time duration required for enabling the charging rate of the pixel corresponding to the gate line with the smallest length of the wires between the gate line group and the gate driver to reach 100%.
Preferably, in the driving method provided by the embodiment of the present invention, in all the gate line groups, the preset time duration corresponding to the gate line in the gate line group with the largest average length of the routing lines does not exceed 1/N of one frame image time.
Preferably, in the driving method provided by the embodiment of the present invention, the number of the gate lines in each gate line group is equal. Of course, in specific implementation, the number of the gate lines in each gate line group may also be unequal, and specifically, the gate lines included in each gate line group may be determined according to the length of the routing between the gate lines and the gate driver, which is not limited herein.
Specifically, in the driving method provided in the embodiment of the present invention, the nth gate line to be scanned currently is determined, and the duration of the scan signal corresponding to the nth gate line is adjusted to the preset duration corresponding to the nth gate line and then output to the nth gate line, as shown in fig. 4, the method may specifically include the following steps:
s401, when a frame starting signal is received, starting to record the number of periods, and counting once every time a clock signal of one period is received;
s402, recording the number of each period, comparing the recorded number of the periods with a pre-established period number and a corresponding table of the n grid line and the opening time width of the enabling signal corresponding to the n grid line, and determining the opening time width of the target enabling signal corresponding to the n grid line to be scanned;
s403, according to the determined on-time width of the target enable signal corresponding to the nth gate line to be scanned, adjusting the time width of the currently received initial enable signal to the determined on-time width of the target enable signal, and generating the target enable signal corresponding to the nth gate line to be scanned;
s404, according to a generated target enabling signal corresponding to the nth grid line to be scanned currently, adjusting the maintaining time of a scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and then outputting the preset time to the nth grid line; the preset time length corresponding to the scanning signal of the nth grid line is equal to the opening time width of the target enabling signal corresponding to the nth grid line.
Specifically, in a specific implementation, in the above-mentioned driving method provided in the embodiment of the present invention, in the pre-established correspondence table between the number of cycles and the turn-on time widths of the enable signal corresponding to the nth gate line and the nth gate line, the turn-on time width of the enable signal corresponding to the nth gate line is positively correlated to the average length of the routing between each gate line and the gate driver in the gate line group where the nth gate line is located.
Based on the same inventive concept, an embodiment of the present invention further provides a driving apparatus of a display panel, as shown in fig. 5, the display panel 1 has N gate lines: gate1, gate2, gate3, and … … gates (N is greater than or equal to 1 and less than or equal to N), each gate line gate is connected to the gate driver 21 through a corresponding trace 11, and all the gate lines gate are divided into a plurality of gate line groups 12 according to the scanning sequence of the gate lines gate, wherein each gate line group 12 at least includes one gate line gate;
the driving device 2 is used for determining the nth grid line gaten to be scanned currently, wherein N is more than or equal to 1 and less than or equal to N; adjusting the maintaining time length of the scanning signal corresponding to the nth gate line gaten to a preset time length corresponding to the nth gate line gaten and then outputting the preset time length to the nth gate line gaten; the preset time duration corresponding to each gate line gaten in each gate line group 12 is equal, and the preset time duration corresponding to each gate line gaten in each gate line group 12 is positively correlated to the average length of the routing lines 11 between each gate line gaten in the gate line group 12 and the gate driver 21.
Preferably, in the driving device provided in the embodiment of the present invention, in all the gate line groups, a preset time duration corresponding to a gate line in the gate line group with the smallest average length of the wires is not less than a time duration required for enabling a charging rate of the gate line in the gate line group with the smallest length of the wires between the gate driver and the gate driver to reach 100%.
Preferably, in the driving device provided in the embodiment of the present invention, in all the gate line groups, the preset time duration corresponding to the gate line in the gate line group with the largest average length of the routing lines does not exceed 1/N of one frame image time.
Specifically, as shown in fig. 5, the driving device 2 provided in the embodiment of the present invention may specifically include: a gate driver 21, a clock controller 22, and a signal adjusting unit 23; wherein,
a clock controller 22 for transmitting a frame start signal STV, a clock signal CPV, and an initial enable signal OE1 to the signal adjusting unit 23;
a signal adjusting unit 23, configured to start recording the number of periods when receiving the frame start signal STV, and count once every time a clock signal CPV of one period is received; when one cycle number is recorded, comparing the recorded cycle number with a pre-established corresponding table of the cycle number and the turn-on time widths of the enabling signals corresponding to the nth grid line and the nth grid line, and determining the turn-on time width of the target enabling signal OE2 corresponding to the nth grid line to be scanned currently; according to the determined on-time width of the target enable signal OE2 corresponding to the nth gate line to be scanned currently, adjusting the time width of the currently received initial enable signal OE1 to the determined on-time width of the target enable signal OE2, generating a target enable signal OE2 corresponding to the nth gate line to be scanned currently, and sending the target enable signal OE2 to the gate driver 21;
the gate driver 21 is configured to adjust a duration of a scan signal corresponding to an nth gate line to a preset duration corresponding to the nth gate line according to a received target enable signal OE2 corresponding to the nth gate line to be currently scanned, and output the adjusted duration to the nth gate line; the preset time length corresponding to the scanning signal of the nth grid line is equal to the opening time width of the target enabling signal corresponding to the nth grid line.
Specifically, in the foregoing driving device provided in the embodiment of the present invention, in the pre-established correspondence table between the number of cycles and the on-time widths of the enable signals corresponding to the nth gate line and the nth gate line, the on-time width of the enable signal corresponding to the nth gate line is positively correlated with the average length of the trace between each gate line and the gate driver in the gate line group where the nth gate line is located.
Specifically, in practical implementation, in the above driving apparatus provided in the embodiment of the present invention, as shown in fig. 5, the clock controller 22 is further configured to send a frame start signal STV and a clock signal CPV to the gate driver 21; the gate driver 21 performs a line-by-line scanning of the gate lines on the display panel under the combined action of the frame start signal STV, the clock signal CPV, and the target enable signal OE 2.
Based on the same inventive concept, an embodiment of the present invention further provides a display device, including: a display panel and a driving device; wherein,
the display panel is provided with N grid lines, each grid line is connected with the grid driver through corresponding routing, and all the grid lines are divided into a plurality of grid line groups according to the scanning sequence of the grid lines, wherein each grid line group at least comprises one grid line; the driving device is any one of the driving devices provided by the embodiment of the invention. The specific implementation of the display device can be referred to the description of the driving device, and the same parts are not described again.
According to the driving method, the driving device and the display device of the display panel provided by the embodiment of the invention, the display panel divides all grid lines into a plurality of grid line groups according to the scanning sequence of the grid lines, and when the display panel is driven, the nth grid line to be scanned currently is determined; then adjusting the maintaining time of the scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and outputting the preset time to the nth grid line; because the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of the routing between each grid line in the grid line group and the grid driver, the maintenance time of the scanning signal input by the grid line with longer routing is relatively longer, and the maintenance time of the scanning signal input by the grid line with shorter routing is relatively shorter, so that different pixel row charging rates caused by uneven routing resistance can be compensated, and the uniformity of the display surface picture of the display panel is improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims (10)

1. A driving method of a display panel is characterized in that the display panel is provided with N grid lines, each grid line is connected with a grid driver through a corresponding routing, and all the grid lines are divided into a plurality of grid line groups according to the scanning sequence of the grid lines, wherein each grid line group at least comprises one grid line; the driving method includes:
determining the nth grid line to be scanned currently, wherein N is more than or equal to 1 and less than or equal to N;
adjusting the maintaining time length of a scanning signal corresponding to the nth grid line to a preset time length corresponding to the nth grid line and then outputting the preset time length to the nth grid line;
the preset time length corresponding to each grid line in each grid line group is equal, and the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of routing between each grid line in the grid line group and the grid driver.
2. The driving method according to claim 1, wherein the preset time period corresponding to the gate line in the gate line group with the smallest average length of the wires in all the gate line groups is not less than the time period required for the charging rate of the pixel corresponding to the gate line in the gate line group with the smallest average length of the wires between the gate driver and the gate driver to reach 100%.
3. The driving method according to claim 1, wherein the preset time period corresponding to the gate line in the gate line group with the largest average length of the routing lines in all the gate line groups does not exceed 1/N of one frame picture time.
4. The driving method of claim 1, wherein the number of gate lines in each gate line group is equal.
5. The driving method according to any one of claims 1 to 4, wherein the determining of an nth gate line to be scanned currently, and adjusting a duration of a scan signal corresponding to the nth gate line to a preset duration corresponding to the nth gate line before outputting the scan signal to the nth gate line, specifically includes:
when a frame starting signal is received, starting to record the number of cycles, and counting once every time a clock signal of one cycle is received;
when recording one period number, comparing the recorded period number with a pre-established period number and a corresponding table of the n grid line and the opening time width of the enabling signal corresponding to the n grid line, and determining the opening time width of the target enabling signal corresponding to the n grid line to be scanned;
according to the determined starting time width of the target enabling signal corresponding to the nth grid line to be scanned currently, the time width of the initial enabling signal received currently is adjusted to the determined starting time width of the target enabling signal, and the target enabling signal corresponding to the nth grid line to be scanned currently is generated;
according to a generated target enabling signal corresponding to an nth grid line to be scanned currently, adjusting the maintaining time of a scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line, and then outputting the preset time to the nth grid line; the preset time length corresponding to the scanning signal of the nth grid line is equal to the opening time width of the target enabling signal corresponding to the nth grid line.
6. A driving device of a display panel is characterized in that the display panel is provided with N grid lines, each grid line is connected with a grid driver through a corresponding routing, and all the grid lines are divided into a plurality of grid line groups according to the scanning sequence of the grid lines, wherein each grid line group at least comprises one grid line;
the driving device is used for determining the nth grid line to be scanned currently, wherein N is more than or equal to 1 and less than or equal to N; adjusting the maintaining time length of a scanning signal corresponding to the nth grid line to a preset time length corresponding to the nth grid line and then outputting the preset time length to the nth grid line; the preset time length corresponding to each grid line in each grid line group is equal, and the preset time length corresponding to each grid line in each grid line group is positively correlated with the average length of routing between each grid line in the grid line group and the grid driver.
7. The driving apparatus as claimed in claim 6, wherein the predetermined time period corresponding to the gate line in the gate line group having the smallest average length of the wires among all the gate line groups is not less than the time period required for the charging rate of the pixel corresponding to the gate line in the gate line group having the smallest average length of the wires between the gate driver and the gate driver to reach 100%.
8. The driving apparatus as claimed in claim 6, wherein the preset duration corresponding to the gate line in the gate line group with the largest average length of the traces in all the gate line groups is not more than 1/N of one frame picture time.
9. The drive device according to any one of claims 6 to 8, comprising in particular: a gate driver, a clock controller and a signal adjusting unit; wherein,
the clock controller is used for sending a frame start signal, a clock signal and an initial enable signal to the signal adjusting unit;
the signal adjusting unit is used for starting to record the number of periods when receiving a frame starting signal, and then counting once every time a clock signal of one period is received; when recording one period number, comparing the recorded period number with a pre-established period number and a corresponding table of the n grid line and the opening time width of the enabling signal corresponding to the n grid line, and determining the opening time width of the target enabling signal corresponding to the n grid line to be scanned; adjusting the time width of a currently received initial enable signal to the determined starting time width of the target enable signal according to the determined starting time width of the target enable signal corresponding to the nth grid line to be scanned currently, generating the target enable signal corresponding to the nth grid line to be scanned currently, and sending the target enable signal to the grid driver;
the grid driver is used for adjusting the maintaining time of a scanning signal corresponding to the nth grid line to a preset time corresponding to the nth grid line and outputting the preset time to the nth grid line according to a received target enabling signal corresponding to the nth grid line to be scanned; the preset time length corresponding to the scanning signal of the nth grid line is equal to the opening time width of the target enabling signal corresponding to the nth grid line.
10. A display device is characterized by comprising a display panel and a driving device; wherein,
the display panel is provided with N grid lines, each grid line is connected with the grid driver through corresponding routing, and all the grid lines are divided into a plurality of grid line groups according to the scanning sequence of the grid lines, wherein each grid line group at least comprises one grid line;
the drive device is according to any one of claims 6-9.
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