CN110148373B

CN110148373B - Display panel, display device and driving method of display panel

Info

Publication number: CN110148373B
Application number: CN201910471858.9A
Authority: CN
Inventors: 熊娜娜; 吴天一
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2022-06-24
Anticipated expiration: 2039-05-31
Also published as: CN110148373A

Abstract

The embodiment of the invention discloses a display panel, a display device and a driving method of the display panel. The display panel includes: the shift register comprises a plurality of shift register groups, a plurality of starting signal lines and at least one group of clock signal line groups, wherein each shift register group is correspondingly and electrically connected with one starting signal line, and at least two shift register groups are electrically connected to the same group of clock signal line groups; the group of shift register groups comprises a plurality of shift register units which are connected in cascade, and the shift register units are correspondingly and electrically connected with the scanning lines; for the shift register units in the same shift register group, at least one shift register unit in different shift register groups is included between at least two adjacent shift register units in the column direction. The embodiment of the invention can adopt a frame scanning mode for gating all the shift register groups or adopt a frame scanning mode for gating part of the shift register groups according to requirements, thereby realizing free switching of line frequency.

Description

Display panel, display device and driving method of display panel

Technical Field

The embodiment of the invention relates to the technical field of display, in particular to a display panel, a display device and a driving method of the display panel.

Background

The flat panel display device has the advantages of thin body, power saving, no radiation and the like, and is widely applied in the technical field of display.

In the prior art, in order to improve the display effect of the flat panel display device, the refresh frequency of the display panel needs to be adjusted to a better value (typically 60 Hz). Each time the display panel is refreshed, the sub-pixels of the display panel need to be recharged and discharged. Therefore, the higher the refresh frequency of the display panel, the more times the sub-pixels need to be charged and discharged within one second, the greater the power consumption of the display panel. However, the prior art has not proposed a scheme capable of switching the line frequency.

Disclosure of Invention

The embodiment of the invention provides a display panel, a display device and a driving method of the display panel, and aims to realize a scheme of freely switching line frequency.

In a first aspect, an embodiment of the present invention provides a display panel, including:

a plurality of scanning lines extending in a row direction and arranged in a column direction;

a plurality of data lines extending in the column direction and arranged in the row direction;

the plurality of scanning lines and the plurality of data lines are intersected to define a plurality of sub-pixels;

the shift register comprises a plurality of shift register groups, a plurality of starting signal lines and at least one group of clock signal line groups, wherein each shift register group is correspondingly and electrically connected with one starting signal line, and at least two groups of shift register groups are electrically connected to the same group of clock signal line groups;

the shift register group comprises a plurality of shift register units which are connected in cascade, and the shift register units are correspondingly and electrically connected with the scanning lines;

for the shift register units in the same shift register group, at least one shift register unit in a different shift register group is included between at least two adjacent shift register units in the column direction.

In a second aspect, an embodiment of the present invention further provides a display device, where the display device includes: a timing controller, a data driver, and a display panel according to any of the embodiments of the present invention;

the time schedule controller is respectively electrically connected with the starting signal line and the clock signal line group; the data drivers are electrically connected with the data lines, respectively.

In a third aspect, an embodiment of the present invention further provides a driving method of a display panel, where the driving method of the display panel is applied to the display panel provided in any embodiment of the present invention. The driving method of the display panel includes:

the frame scanning mode comprises a first line frequency mode and a second line frequency mode;

in the first line frequency mode, sending a clock signal to a clock signal line group in one frame; sending a starting signal to M starting signal lines in sequence, and controlling M groups of shift register groups to output scanning signals in sequence one by one, wherein each group of shift register groups in the M groups of shift register groups outputs scanning signals, and each shift register unit outputs scanning signals in sequence step by step;

in the second line frequency mode, sending a clock signal to the clock signal line group in one frame; sending a starting signal to N starting signal lines in sequence, and controlling N groups of shift register groups to output scanning signals in sequence one by one, wherein each group of shift register groups in the N groups of shift register groups outputs scanning signals, and each shift register unit outputs scanning signals in sequence step by step;

wherein M and N are positive integers, M is more than or equal to 2, and N is less than M.

The embodiment of the invention realizes that all the shift register groups can be flexibly selected and driven or a part of the shift register groups can be selected and driven when a frame of picture is refreshed by arranging a plurality of shift register groups, wherein each shift register group is correspondingly and electrically connected with one starting signal line, at least two shift register groups are electrically connected to the same group of clock signal line groups, and at least one shift register unit in different shift register groups is arranged between at least two adjacent shift register units in the column direction of the shift register units in the same group of shift register groups. Therefore, the embodiment of the invention can adopt a frame scanning mode for gating all the shift register groups or adopt a frame scanning mode for gating part of the shift register groups according to requirements, thereby realizing free switching of line frequency. Based on this, the display panel provided by the embodiment of the invention can realize that the shift register groups output scanning signals group by group, so that compared with a frame scanning mode for gating all the shift register groups, the frame scanning mode for gating a part of the shift register groups can also reduce the frame scanning time, and when line frequency is switched, the waveform of a clock signal on a clock signal line group does not need to be changed into an irregular waveform, so that the internal power consumption of a driving chip is not increased.

Drawings

Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention;

fig. 7 is a flowchart illustrating a driving method of a display panel according to an embodiment of the invention;

FIG. 8 is a timing diagram illustrating a first horizontal frequency mode according to an embodiment of the present invention;

FIG. 9 is a timing diagram illustrating another second horizontal frequency mode according to an embodiment of the present invention;

fig. 10 is a timing diagram of a second horizontal frequency mode according to another embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

The embodiment of the invention provides a display panel. Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention. Referring to fig. 1, the display panel includes: the display device includes a plurality of scan lines 110 extending in a row direction and arranged in a column direction, a plurality of data lines 120 extending in the column direction and arranged in the row direction, and a plurality of sub-pixels 130 defined by the plurality of scan lines 110 and the plurality of data lines 120 crossing each other. The display panel further includes a plurality of shift register groups, a plurality of enable signal lines, and at least one clock signal line group 400. Two shift register groups, two enable signal lines, and one clock signal line group 400 are exemplarily shown in fig. 1, where the same shift register group is electrically connected through the stage transmission line 201. The two start signal lines are a start signal line 301 and a start signal line 302, respectively.

Each shift register set is electrically connected to a corresponding start signal line, and at least two shift register sets are electrically connected to the same clock signal line set 400. The shift register set includes a plurality of cascade-connected shift register units 202, and the shift register units 202 are electrically connected to the scan lines 110. For the shift register units 202 in the same shift register group, at least two adjacent stages of shift register units 202 include at least one stage of shift register unit 202 in a different shift register group in the column direction.

For the shift register units 202 of the same shift register group, the output ends of the shift register units 202 are electrically connected to the scan lines 110, the shift signal input end of the first shift register unit 202 in the shift register group is electrically connected to a start signal line, and the shift signal input end of the next shift register unit 202 is electrically connected to the output end of the previous shift register unit 202. For the shift register units 202 of different sets of shift register groups, the clock signal terminals of the shift register units 202 of at least two sets of shift register groups are electrically connected to the same set of clock signal line group 400.

Each shift register group is correspondingly electrically connected with one starting signal line, so that a starting signal can be sent to one or a plurality of starting signal lines in sequence according to needs to gate the corresponding shift register group.

The clock signal lines in one clock signal line group 400 are all electrically connected to the same shift register group, so that after one shift register group is gated, the shift register units 202 in the shift register group can output continuous scanning signals step by step according to the clock signals on the clock signal lines, and the pulses of the scanning signals are compact. At least two shift register sets are electrically connected to the same clock signal line set 400, i.e., at least two shift register sets are driven by a single phase. Then, at least two shift register groups electrically connected to the same group of clock signal line group 400 may output consecutive scan signals group by group according to the start signal it receives. And after the last stage shift register unit 202 of the previous shift register group outputs the scan signal, the first stage shift register unit 202 of the next shift register group starts to output the scan signal.

In the column direction, at least two adjacent stages of shift register units 202 include at least one stage of shift register unit 202 located in different shift register groups, that is, the shift register units 202 in different shift register groups are arranged alternately. Therefore, the scanning lines which are correspondingly and electrically connected with each shift register group are favorably and uniformly distributed in the whole picture display area, when a group of shift register groups are driven to output scanning signals step by step, the interlaced scanning of the scanning lines 110 on the display panel can be realized, the whole display area can be roughly scanned, the scanning lines 110 in a certain area on the display panel are prevented from being only scanned by one group of shift register groups, and the power consumption of the display panel is favorably reduced by adopting a mode of reducing line frequency.

The line frequency refers to the number of pixel lines scanned when refreshing one frame of a screen.

Alternatively, the shift register units of the shift register groups are sequentially arranged circularly in the column direction.

Illustratively, the driving method of the display panel is that the frame scanning mode comprises a first line frequency mode and a second line frequency mode. In the first line frequency mode, a clock signal is transmitted to the clock signal line group 400 in one frame; and sending starting signals to the M starting signal lines in sequence, and controlling the M groups of shift register groups to output scanning signals in sequence group by group. In the second line frequency mode, in one frame, a clock signal is transmitted to the clock signal line group 400; and sending starting signals to the N starting signal lines in sequence, and controlling the N groups of shift register groups to output scanning signals in sequence group by group. Wherein M and N are positive integers, M is more than or equal to 2, and N is less than M. M may represent the total number of shift register groups in the display panel.

In the embodiment of the invention, by arranging a plurality of shift register groups, each shift register group is correspondingly and electrically connected with one starting signal line, at least two shift register groups are electrically connected to the same clock signal line group 400, and for the shift register units 202 in the same shift register group, at least one shift register unit 202 in different shift register groups is arranged between at least two adjacent shift register units 202 in the column direction, so that when a frame of picture is refreshed, all the shift register groups can be flexibly selected and driven, or a part of the shift register groups can be selected and driven. Therefore, the embodiment of the invention can adopt a frame scanning mode for gating all the shift register groups or adopt a frame scanning mode for gating part of the shift register groups according to requirements, thereby realizing free switching of line frequency. On this basis, the display panel provided in the embodiment of the present invention can realize that the shift register groups output the scan signals group by group, so that, compared with the frame scan mode in which all the shift register groups are gated, the frame scan mode in which a part of the shift register groups are gated can also reduce the frame scan time, and when the line frequency is switched, the waveform of the clock signal on the clock signal line group 400 does not need to be changed into an irregular waveform, so that the internal power consumption of the driving chip is not increased. In addition, no matter in the first line frequency mode or the second line frequency mode, the display panel adopts a group-by-group scanning mode, so that for one group of shift register groups, no matter the shift register groups are scanned in the first line frequency mode or the second line frequency mode, continuous scanning signals can be output step by step, and the scanning efficiency is favorably improved.

It should be noted that, in the above embodiments, the clock signal line group 400 is exemplarily shown to include the clock signal line 401 and the clock signal line 402, and is not a limitation of the present invention. In other embodiments, the clock signal line group 400 may also include one clock signal line or a plurality of clock signal lines. In practical applications, the number of clock signal lines in one clock signal line group 400 may be determined according to the type of the specific shift register unit 202.

It should be noted that, in the above embodiments, there are various arrangement forms of the sub-pixels 130 electrically connected to each shift register group through the scan line 110, and the invention is not limited thereto. Several of these are described below, but the present invention is not limited thereto.

Fig. 2 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 2, on the basis of the above embodiments, optionally, fig. 2 exemplarily shows three shift register groups, three start signal lines and one clock signal line group 400, wherein the same shift register group is electrically connected through the stage transmission line 201. The three start signal lines are a start signal line 301, a start signal line 302, and a start signal line 303, respectively.

For the same shift register group, the sub-pixels 130 electrically connected to each shift register unit 202 through the scan lines 110 have the same color. For different shift register groups, the sub-pixels 130 electrically connected by the scan lines 110 of the shift register units 202 of at least two shift register groups have different colors.

The arrangement of the embodiment of the invention can drive the corresponding sub-pixel 130 of a certain color to emit light when a certain shift register group is gated, thereby realizing the centralized transmission of data signals to the sub-pixel of a certain color. For example, in the high line frequency mode, when the display panel displays a pure color picture, all the red sub-pixels are driven to emit light, all the green sub-pixels are driven to emit light in sequence, and all the blue sub-pixels are driven to emit light finally. In the whole driving process, the data signals for driving the sub-pixels of the same color to emit light are the same, and do not need to be inverted, so that the data signals are inverted only three times. Compared with the prior art in which data signals of the same color are transmitted in a non-centralized manner, the embodiment of the invention transmits the data signals of a certain color in a centralized manner, and avoids the data signals from being continuously turned over along with the change of the corresponding color, thereby reducing the turning times of the data signals and reducing the power consumption of the display panel. And, because the embodiment of the invention can flexibly select the shift register group to be driven, the scanning frequency of each color sub-pixel can be flexibly set according to the requirement in the display process of the frame picture.

With continued reference to fig. 2, based on the above embodiments, optionally, the sub-pixels 130 include a first color sub-pixel 131, a second color sub-pixel 132, and a third color sub-pixel 133, and the colors of the first color sub-pixel 131, the second color sub-pixel 132, and the third color sub-pixel 133 are different from each other. The sub-pixels 130 in the same row have the same color, and each scan line 110 is electrically connected to the sub-pixels 130 in the same row. The first color sub-pixels 131, the second color sub-pixels 132, and the third color sub-pixels 133 are sequentially and alternately arranged in a cycle in the column direction, for example, the sub-pixels in the 1 st row, the 4 th row, and the 7 th row …, the 3n +1 st row are all the first color sub-pixels 131, the sub-pixels in the 2 nd row, the 5 th row, and the 8 th row …, the 3n +2 nd row are all the second color sub-pixels 132, and the sub-pixels in the 3 rd row, the 6 th row, and the 9 th row …, the 3 rd (n +1) th row are all the third color sub-pixels 133, where n is an integer greater than or equal to 0.

In the embodiment of the present invention, the sub-pixels 130 in the same row have the same color, and each scan line 110 is electrically connected to the sub-pixels 130 in the same row, which is beneficial to the routing design of the display panel. In addition, the first color sub-pixels 131, the second color sub-pixels 132, and the third color sub-pixels 133 are sequentially arranged in a row direction in an alternating and cyclic manner, which is favorable for improving the display uniformity of the display panel.

With continued reference to fig. 2, on the basis of the foregoing embodiments, optionally, the shift register sets include a first shift register set, a second shift register set, and a third shift register set. The clock signal terminals of the shift register units 202 of each shift register group are electrically connected to the clock signal line group 400. The plurality of start signal lines include a first start signal line 301, a second start signal line 302, and a third start signal line 303.

The shift signal input terminal of the first stage shift register unit 202 of the first shift register group is electrically connected to the first start signal line 301, and each shift register unit 202 of the first shift register group is electrically connected to the first color sub-pixel 131 through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the second shift register group is electrically connected to the second start signal line 302, and each shift register unit 202 of the second shift register group is electrically connected to the second color sub-pixel 132 through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the third shift register group is electrically connected to the third start signal line 303, and each shift register unit 202 of the third shift register group is electrically connected to the third color subpixel 133 through the scan line 110.

The shift register units 202 of the first shift register group, the shift register units 202 of the second shift register group and the shift register units 202 of the third shift register group are sequentially and alternately arranged in a circulating manner in the column direction.

Illustratively, the driving method of the display panel includes a first frame scan mode, a second frame scan mode, and a third frame scan mode. In the first frame scan mode, the first shift register group outputs scan signals to drive the first color sub-pixel 131 to emit light in one frame. In the second frame scan mode, the second shift register group outputs scan signals to drive the second color sub-pixels 132 to emit light in one frame. In the third frame scan mode, the third shift register group outputs a scan signal to drive the third color sub-pixel 133 to emit light in one frame. In the frame picture refreshing process, the first frame scanning mode, the second frame scanning mode and the third frame scanning mode are sequentially and cyclically set to drive the first color sub-pixel 131, the second color sub-pixel 132 and the third color sub-pixel 133 to sequentially and cyclically emit light.

Alternatively, the driving method of the display panel includes a fourth frame scan mode and a fifth frame scan mode. In the fourth frame scan mode, the first shift register group and the second shift register group sequentially output scan signals group by group to drive the first color sub-pixel 131 and the second color sub-pixel 132 to sequentially emit light in one frame. In the fifth frame scan mode, the second shift register group and the third shift register group sequentially output scan signals group by group within one frame to drive the second color sub-pixel 132 and the third color sub-pixel 133 to sequentially emit light. In the frame picture refreshing process, the fourth frame scanning mode and the fifth frame scanning mode are alternately set, or in the frame picture refreshing process, the fourth frame scanning mode is adopted by two continuous frames and the fifth frame scanning mode is adopted by two continuous frames.

Fig. 3 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 3, on the basis of the foregoing embodiments, optionally, the multiple shift register groups include a fourth shift register group, a fifth shift register group, a sixth shift register group, a seventh shift register group, an eighth shift register group, and a ninth shift register group. The clock signal terminals of the shift register units 202 of each shift register group are electrically connected to the clock signal line group 400. The plurality of enable signal lines include a fourth enable signal line 304, a fifth enable signal line 305, a sixth enable signal line 306, a seventh enable signal line 307, an eighth enable signal line 308, and a ninth enable signal line 309.

The shift signal input terminal of the first stage shift register unit 202 of the fourth shift register group is electrically connected to the fourth start signal line 304, and each shift register unit 202 of the fourth shift register group is electrically connected to the first color sub-pixels 131 of the odd-numbered rows in the row where the first color sub-pixels 131 are located through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the fifth shift register group is electrically connected to the fifth start signal line 305, and each shift register unit 202 of the fifth shift register group is electrically connected to the second color sub-pixels 132 of the odd-numbered rows in the row where the second color sub-pixels 132 are located through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the sixth shift register group is electrically connected to the sixth start signal line 306, and each shift register unit 202 of the sixth shift register group is electrically connected to the third color sub-pixels 133 of the odd-numbered rows in the row where the third color sub-pixels 133 are located through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the seventh shift register group is electrically connected to the seventh start signal line 307, and each shift register unit 202 of the seventh shift register group is electrically connected to the first color sub-pixels 131 of the even-numbered rows in the row where the first color sub-pixels 131 are located through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the eighth shift register group is electrically connected to the eighth start signal line 308, and each shift register unit 202 of the eighth shift register group is electrically connected to the second color sub-pixels 132 of the even-numbered rows in the row where the second color sub-pixels 132 are located through the scan line 110. The shift signal input terminal of the first stage shift register unit 202 of the ninth shift register group is electrically connected to the ninth enable signal line 309, and each shift register unit 202 of the ninth shift register group is electrically connected to the third color sub-pixels 133 of the even-numbered rows in the row where the third color sub-pixels 133 are located through the scan lines 110.

The shift register units 202 of the fourth shift register group, the shift register units 202 of the fifth shift register group, the shift register units 202 of the sixth shift register group, the shift register units 202 of the seventh shift register group, the shift register units 202 of the eighth shift register group, and the shift register units 202 of the ninth shift register group are sequentially and alternately arranged in a circular manner in the column direction.

Illustratively, the driving method of the display panel includes a sixth frame scan mode, a seventh frame scan mode, an eighth frame scan mode, and a ninth frame scan mode. In the sixth frame scanning mode, in one frame, the fourth shift register group, the fifth shift register group, the sixth shift register group and the eighth shift register group sequentially output scanning signals group by group according to a preset scanning order to drive the odd-numbered rows of the first color sub-pixels 131, all the rows of the second color sub-pixels 132 and the odd-numbered rows of the third color sub-pixels 133 to sequentially emit light. In the seventh frame scanning mode, in one frame, the seventh shift register group, the eighth shift register group, the ninth shift register group, and the fifth shift register group sequentially output scanning signals group by group according to a preset scanning order to drive the even-numbered rows of the first color sub-pixels 131, all the rows of the second color sub-pixels 132, and the even-numbered rows of the third color sub-pixels 133 to sequentially emit light. In the eighth frame scan mode, in one frame, the fourth shift register group, the fifth shift register group and the sixth shift register group sequentially output scan signals group by group according to a preset scan order to drive the odd-row first color sub-pixels 131, the odd-row second color sub-pixels 132 and the odd-row third color sub-pixels 133 to sequentially emit light. In the ninth frame scan mode, in one frame, the seventh shift register group, the eighth shift register group, and the ninth shift register group sequentially output scan signals group by group according to a preset scan order to drive the even-row first color sub-pixels 131, the even-row second color sub-pixels 132, and the even-row third color sub-pixels 133 to sequentially emit light.

In the second line frequency mode, in the frame picture refreshing process, the sixth frame scanning mode and the seventh frame scanning mode are alternately set, or in the frame picture refreshing process, two continuous frames adopt the sixth frame scanning mode and two continuous frames adopt the seventh frame scanning mode, or in the frame picture refreshing process, the eighth frame scanning mode and the ninth frame scanning mode are alternately set, or in the frame picture refreshing process, two continuous frames adopt the eighth frame scanning mode and two continuous frames adopt the ninth frame scanning mode.

Fig. 4 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 4, on the basis of the above embodiments, optionally, the display panel further includes a display area 510 and a non-display area 520. Each shift register group is located in the non-display area 520, and the shift register groups are respectively located at two sides of the display area 510. The at least one group of clock signal lines includes a third group of clock signal lines 430 and a fourth group of clock signal lines 440, the shift register groups located on one side of the display area 510 (illustratively, the shift register groups located on the left side of the display area 510 in fig. 4) are electrically connected to the third group of clock signal lines 430, and the shift register groups located on the other side of the display area 510 (illustratively, the shift register groups located on the right side of the display area 510 in fig. 4) are electrically connected to the fourth group of clock signal lines 440. The clock signals of the third clock signal line group 430 and the fourth clock signal line group 440 are the same. A shift register group located on the left side of the display area 510, which is disposed corresponding to the shift register group located on the right side of the display area 510; two ends of one scan line 110 are connected to the shift register units 202 of the two shift register groups, respectively. The shift register group positioned on the left side of the display area 510 and the shift register group positioned on the right side of the display area 510 can simultaneously provide scanning signals to the two ends of the scanning lines 110, which is beneficial to improving the transmission efficiency of the scanning signals on each scanning line 110.

Fig. 5 is a schematic structural diagram of another display panel according to an embodiment of the present invention. Referring to fig. 5, on the basis of the above embodiments, optionally, a display area 510 and a non-display area 520 are further included. Each shift register group is located in the non-display area 520, and the shift register groups are respectively located at two sides of the display area 510. The at least one group of clock signal lines includes a fifth clock signal line group 450 and a sixth clock signal line group 460, the shift register groups (exemplarily, the shift register group on the left side of the display area 510 in fig. 5) on one side of the display area 510 are electrically connected to the fifth clock signal line group 450, and the shift register groups (exemplarily, the shift register group on the left side of the display area 510 in fig. 6) on the other side of the display area 510 are electrically connected to the sixth clock signal line group 460; the shift register group located at one side of the display area 510 and the shift register group located at the other side of the display area 510 are electrically connected to different scan lines 110, respectively. The embodiment of the invention arranges different shift register groups on two sides of the display area 510 respectively, which is beneficial to the layout of each shift register group and the wiring of each signal wire, thereby being beneficial to reducing the width of a frame and increasing the screen occupation ratio.

The embodiment of the invention also provides a display device. Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention. Referring to fig. 6, the display device includes: a timing controller 1, a data driver 2, and a display panel 3 as provided in any of the embodiments of the present invention. The time schedule controller 1 is respectively electrically connected with the starting signal line and the clock signal line group; the data driver 2 is electrically connected to the data lines. The display device can be a mobile phone, a tablet computer, an intelligent wearable device, an information inquiry machine in a hall of a public place and the like. The display device comprises the display panel provided by any embodiment of the invention, the technical principle and the generated technical effect are similar, and the description is omitted here.

It should be noted that fig. 6 exemplarily shows that the timing controller 1 and the data driver 2 are located on the display panel, and the present invention is not limited thereto. In other embodiments, the timing controller 1 and the data driver 2 may be disposed at other positions of the display device as needed, and the timing controller 1 and the data driver 2 are electrically connected to the display panel through a flexible circuit board, which may be disposed as needed in practical applications.

The embodiment of the invention also provides a driving method of the display panel, which can be applied to the display panel provided by any embodiment of the invention, and the display panel comprises M sets of shift register groups. Fig. 7 is a flowchart illustrating a driving method of a display panel according to an embodiment of the present invention. Referring to fig. 7, the frame scanning mode of the driving method of the display panel includes a first line frequency mode and a second line frequency mode. The driving method of the display panel includes the following steps.

S110, in the first line frequency mode, sending a clock signal to a clock signal line group in one frame; and sequentially sending starting signals to the M starting signal lines to control the M groups of shift register groups to sequentially output scanning signals group by group, wherein each group of shift register groups in the M groups of shift register groups outputs scanning signals, and each shift register unit sequentially outputs scanning signals step by step.

S120, in the second line frequency mode, sending a clock signal to the clock signal line group in one frame; and sequentially sending starting signals to the N starting signal lines, and controlling the N groups of shift register groups to sequentially output scanning signals group by group, wherein each group of shift register groups in the N groups of shift register groups outputs scanning signals, and each shift register unit sequentially outputs scanning signals step by step. Wherein M and N are positive integers, M is more than or equal to 2, and N is less than M.

The number of the scanning lines arranged on the display panel is N1. The first line frequency mode is a high line frequency mode in which all shift register groups are gated, and transmits scan signals to N1 scan lines within one frame. The second line frequency mode is a low line frequency mode in which the shift register group is gated, and a scan signal is transmitted to less than N1 scan lines in one frame.

The first line frequency mode and the second line frequency mode provided by the embodiment of the invention can be switched, for example, the line frequency mode is switched into the second line frequency mode when the display panel enters a standby state or displays a static picture and the like with lower display requirements; when a display request for a game screen, a video screen, or the like is high, the display panel switches the line frequency mode to the first line frequency mode. It should be noted that fig. 7 exemplarily shows a driving method for switching the display panel from the first line frequency mode to the second line frequency mode, but the invention is not limited thereto, and in practical applications, the first line frequency mode and the second line frequency mode may be switched to each other. Fig. 8 is a timing diagram of a first horizontal frequency mode according to an embodiment of the invention. Referring to fig. 8, a waveform VSR1, a waveform VSR4, a waveform VSR7, and a waveform VSRn1 are waveforms of scan signals output from the shift register group 610, where the waveform VSR1 is a waveform of a scan signal output from a first stage shift register unit of the shift register group 610, and the waveform VSRn1 is a waveform of a scan signal output from a last stage shift register unit of the shift register group 610. The waveform VSR2, the waveform VSR5, the waveform VSR8 and the waveform VSRn2 are waveforms of the scan signals output from the shift register group 620, wherein the waveform VSR2 is a waveform of the scan signal output from the first stage shift register unit of the shift register group 620, and the waveform VSRn2 is a waveform of the scan signal output from the last stage shift register unit of the shift register group 620. The waveform VSR3, the waveform VSR6, the waveform VSR9 and the waveform VSRn3 are waveforms of the scan signals output from the shift register group 630, wherein the waveform VSR3 is a waveform of the scan signal output from the first stage shift register unit of the shift register group 630, and the waveform VSRn3 is a waveform of the scan signal output from the last stage shift register unit of the shift register group 630. As can be seen from fig. 8, in the high line frequency mode, each shift register group outputs a continuous scanning signal step by step, and the pulse of each scanning signal is compact. After the last stage shift register unit 202 of the previous shift register group outputs the scan signal, the first stage shift register unit 202 of the next shift register group starts outputting the scan signal.

With continued reference to fig. 8, in the second line frequency mode, part of the shift register groups output successive scan signals step by step, the pulses of the scan signals are compact, and in the case where the scan time of each line is the same, since the number of sub-pixel lines scanned in the second line frequency mode is smaller than the number of sub-pixel lines scanned in the first mode, the time T11 taken for the completion of the scan in the second line frequency mode is shorter than the time T1 taken for the completion of the scan in the first line frequency mode.

The embodiment of the invention controls one or more groups of shift register groups to output scanning signals one by setting the starting signals to be sent to one or more starting signal lines in sequence, thereby realizing the flexible selection and driving of part of the shift register groups or the selection and driving of all the shift register groups. Therefore, the embodiment of the invention can adopt the second line frequency mode for gating part of the shift register groups or adopt the first line frequency mode for gating all the shift register groups according to the requirement, thereby realizing the free line frequency switching. On this basis, the display panel provided by the embodiment of the invention can realize that the shift register groups output scanning signals group by group, and compared with a frame scanning mode for gating all the shift register groups, the frame scanning mode for gating part of the shift register groups reduces the line frequency, reduces the power consumption of the display panel, and can also reduce the frame scanning time.

On the basis of the foregoing embodiments, optionally, sequentially sending start signals to M start signal lines to control M shift register groups to sequentially output scan signals group by group, or sequentially sending start signals to N start signal lines to control N shift register groups to sequentially output scan signals group by group, includes: and sending a starting signal to a starting signal line connected with the next shift register group at the same time or after the last shift register unit of the last shift register group of the previous shift register group outputs the scanning signal so as to gate each shift register group one by one and realize that each shift register group outputs the scanning signal one by one. The last shift register unit of the previous shift register group is connected with the first shift register unit of the next shift register group in a cascade manner, so that compact scanning signals can be output by each shift register group, and the scanning time of one frame is shortened.

Fig. 9 is a timing diagram of another second line frequency mode according to an embodiment of the invention. Referring to fig. 9, on the basis of the above embodiments, optionally, in the first line frequency mode, the scanning time of one frame is T1; in the second line frequency mode, the scanning time of one frame is T2. Wherein, T1 is more than 0, T2 is more than 0, and T2 is less than or equal to T1, thereby shortening the scanning time of one frame and being beneficial to improving the refresh frequency of the display panel.

Fig. 10 is a timing diagram of a second horizontal frequency mode according to another embodiment of the present invention. Referring to fig. 10, on the basis of the foregoing embodiments, optionally, in the first line frequency mode, the clock signal sent by the clock signal line group is a first type clock signal, and the start signal on the start signal line is a first type start signal; then, the scan signals on the scan lines are the first type of scan signals, and the data signals on the data lines are the first type of data signals. In a second line frequency mode, the clock signal sent by the clock signal line group is a second type of clock signal, and the starting signal on the starting signal line is a second type of starting signal; the scanning signals on the scanning lines are second type scanning signals, and the data signals on the data lines are second type data signals. The pulse width of the second type clock signal is larger than that of the first type clock signal; the pulse width of the second type of start signal is greater than the pulse width of the first type of start signal. Then, the pulse width W2 of the second type scan signal is greater than the pulse width W1 of the first type scan signal, and the pulse width of the second type data signal is greater than the pulse width of the first type data signal.

In the embodiment of the invention, the scanning time distributed to the ungated shift register group in the first line frequency mode is superposed on the scanning time of the gated shift register group in the second line frequency mode, namely the second line frequency mode can adjust the pulse width of the wide clock, so that the data writing time is prolonged, the charging time of the sub-pixels is prolonged, and the compensation of the threshold voltage of the driving transistor is facilitated.

On the basis of the above embodiments, optionally, the pulse width of the second type clock signal is N1/N2 times the pulse width of the first type clock signal; the pulse width of the second type of starting signals is N1/N2 times of the pulse width of the first type of starting signals. Where N1 is the number of scan lines, and N2 is the number of scan lines electrically connected to the shift register group that outputs the scan signal in one frame. The embodiment of the invention is arranged in such a way that the data writing time can be prolonged to the maximum extent under the condition that the scanning time of one frame in the first line frequency mode is equal to that in the second line frequency mode.

In practical applications, the pulse width of the second type clock signal/the second type enable signal may be set to be 1 to N1/N2 times the pulse width of the first type clock signal/the first type enable signal, as needed.

On the basis of the foregoing embodiments, optionally, each shift register group is configured to output scan signals to subpixels of the same color, each color subpixel receives at least one scan signal output by the shift register group, and at least two shift register groups respectively output scan signals to subpixels of different colors.

In the first line frequency mode, the M groups of shift register groups output scanning signals group by group in sequence according to a preset scanning sequence, wherein the color of the sub-pixel corresponding to the next group of shift register groups is different from the color of the sub-pixel corresponding to the previous group of shift register groups.

In the second line frequency mode, N groups of shift register groups output scanning signals group by group in sequence according to a preset scanning sequence.

The embodiment of the invention is arranged in such a way, when a certain shift register group is gated, the corresponding sub-pixel 130 with a certain color is driven to emit light, so that the data signal is transmitted to the sub-pixel with a certain color in a centralized way, the turnover frequency of the data signal is reduced, and the power consumption of the display panel is reduced.

On the basis of the foregoing embodiments, optionally, the driving method of the display panel further includes that the sub-pixels include a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the colors of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other. The multi-shift register group comprises a first shift register group, a second shift register group and a third shift register group, wherein the first shift register group outputs scanning signals to the first color sub-pixels, the second shift register group outputs scanning signals to the second color sub-pixels, and the third shift register group outputs scanning signals to the third color sub-pixels.

The second line frequency mode includes a first frame scan mode, a second frame scan mode, and a third frame scan mode. In the first frame scanning mode, the first shift register group outputs scanning signals in one frame. Illustratively, the first frame scanning mode is specifically that, within one frame, a clock signal is transmitted to the clock signal line group; sending a starting signal to a first starting signal line, and controlling a first shift register group to send a scanning signal to a corresponding scanning line; controlling the data line to send data signals to the first color sub-pixel; so that each shift register unit of the first shift register group drives the first color sub-pixel through the electrically connected scanning line.

In the second frame scanning mode, the second shift register group outputs scanning signals in one frame. The driving method of the second shift register group is similar to that of the first shift register group, and is not described again.

In the third frame scanning mode, the third shift register group outputs scanning signals in one frame. The driving method of the third shift register group is similar to the driving method of the first shift register group, and is not described again.

In the second line frequency mode, in the frame picture refreshing process, the first frame scanning mode, the second frame scanning mode and the third frame scanning mode are sequentially and circularly set.

If the number of the scan lines electrically connected to the first shift register group, the second shift register group, and the third shift register group is equal, the first frame scan mode, the second frame scan mode, and the third frame scan mode all send scan signals to (N1)/3 scan lines in one frame.

On the basis of the foregoing embodiments, optionally, the driving method of the display panel further includes that the sub-pixels include a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the colors of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other. The shift register groups include a first shift register group, a second shift register group and a third shift register group, the first shift register group outputs scanning signals to the first color sub-pixels, the second shift register group outputs scanning signals to the second color sub-pixels, and the third shift register group outputs scanning signals to the third color sub-pixels.

The second line frequency mode includes a fourth frame scan mode and a fifth frame scan mode.

In the fourth frame scanning mode, in one frame, the first shift register group and the second shift register group output scanning signals group by group in sequence. Illustratively, the fourth frame scanning mode is specifically that, within one frame, a clock signal is transmitted to the clock signal line group; sending a starting signal to a first starting signal line, and controlling a first shift register group to send a scanning signal to a corresponding scanning line; controlling the data line to send data signals to the first color sub-pixel; sending a starting signal to a second starting signal line while or after the output end of the last stage of shift register unit of the first shift register group outputs a scanning signal, and controlling the second shift register group to send the scanning signal to a corresponding scanning line; the control data line sends data signals to the second color sub-pixel.

In a fifth frame scanning mode, in one frame, the second shift register group and the third shift register group output scanning signals group by group in sequence. The driving method for sequentially outputting the scanning signals group by the second shift register group and the third shift register group is similar to the driving method for sequentially outputting the scanning signals group by the first shift register group and the second shift register group, and is not repeated.

In the second line frequency mode, in the frame refreshing process, the fourth frame scanning mode and the fifth frame scanning mode are alternately set, or in the frame refreshing process, two continuous frames adopt the fourth frame scanning mode and two continuous frames adopt the fifth frame scanning mode and are alternately set.

On the basis of the above embodiments, optionally, at least two scanned sub-pixels are different within one second, so as to avoid color deviation of the display image of the display panel.

Optionally, the driving method of the display panel further includes: the sub-pixels comprise a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the colors of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other. The shift register groups include a fourth shift register group, a fifth shift register group, a sixth shift register group, a seventh shift register group, an eighth shift register group, and a ninth shift register group. The fourth shift register group and the seventh shift register group are respectively used for outputting scanning signals to the first color sub-pixels of the odd-numbered rows and the first color sub-pixels of the even-numbered rows in the row where the first color sub-pixels are located, the fifth shift register group and the eighth shift register group are respectively used for outputting scanning signals to the second color sub-pixels of the odd-numbered rows and the second color sub-pixels of the even-numbered rows in the row where the second color sub-pixels are located, and the sixth shift register group and the ninth shift register group are respectively used for outputting scanning signals to the third color sub-pixels of the odd-numbered rows and the third color sub-pixels of the even-numbered rows in the row where the third color sub-pixels are located.

The second line frequency mode includes a sixth frame scan mode, a seventh frame scan mode, an eighth frame scan mode, and a ninth frame scan mode.

In a sixth frame scanning mode, in one frame, the fourth shift register group, the fifth shift register group, the sixth shift register group and the eighth shift register group sequentially output scanning signals group by group according to a preset scanning sequence. Illustratively, the sixth frame scanning mode is specifically that, within one frame, a clock signal is transmitted to the clock signal line group; sending a starting signal to a fourth starting signal line, and controlling a fourth shift register group to send a scanning signal to a corresponding scanning line; controlling the data lines to send data signals to the first color sub-pixels in the odd-numbered rows; when or after the output end of the last stage of shift register unit of the fourth shift register group outputs the scanning signal, sending a starting signal to a fifth starting signal line, and controlling the fifth shift register group to send the scanning signal to a corresponding scanning line; controlling the data lines to send data signals to the odd-row second color sub-pixels; sending a starting signal to a sixth starting signal line while or after the output end of the last stage shift register unit of the fifth shift register group outputs a scanning signal, and controlling the sixth shift register group to send the scanning signal to a corresponding scanning line; controlling the data lines to send data signals to the odd-row third-color sub-pixels; when or after the output end of the last stage shift register unit of the sixth shift register group outputs the scanning signal, sending a starting signal to an eighth starting signal line, and controlling the eighth shift register group to send the scanning signal to a corresponding scanning line; the control data lines send data signals to the even-numbered rows of second color sub-pixels.

In a seventh frame scanning mode, in one frame, the seventh shift register group, the eighth shift register group, the ninth shift register group and the fifth shift register group sequentially output scanning signals group by group according to a preset scanning order. The driving methods of the seventh shift register group, the eighth shift register group, the ninth shift register group and the fifth shift register group are similar to the driving methods described above, and are not described again.

In the eighth frame scanning mode, in one frame, the fourth shift register group, the fifth shift register group and the sixth shift register group sequentially output scanning signals group by group according to a preset scanning sequence. The driving methods of the fourth shift register group, the fifth shift register group and the sixth shift register group are similar to the driving methods described above, and are not described again.

In a ninth frame scanning mode, in one frame, the seventh shift register group, the eighth shift register group and the ninth shift register group sequentially output scanning signals group by group according to a preset scanning sequence; the driving methods of the seventh shift register group, the eighth shift register group, and the ninth shift register group are similar to the driving methods described above, and are not described again.

If the number of the scanning lines electrically connected with the fourth shift register group, the fifth shift register group, the sixth shift register group, the seventh shift register group, the eighth shift register group and the ninth shift register group is equal, the sixth frame scanning mode and the seventh frame scanning mode send scanning signals to 4 × (N1)/6 scanning lines in one frame; the eighth frame scan pattern and the ninth frame scan pattern transmit scan signals to 3 × N1/6 scan lines within one frame.

It should be noted that, in the above embodiments, the scan patterns of each frame are exemplarily shown, and the scan signals may be sent to 4 × N1/6 and 3 × N1/6 scan lines in one frame, which is not a limitation of the present invention, and in other embodiments, the scan signals may also be sent to (N1)/6, 2 × N1/6, and 5 × N1)/6 scan lines in one frame, which may also be set as needed.

On the basis of the above embodiments, optionally, the second color sub-pixel is a green sub-pixel, or the second color sub-pixel is a red sub-pixel. The green sub-pixel and the red sub-pixel can embody the brightness of a display picture because the brightness of the green sub-pixel and the brightness of the red sub-pixel are high, and the brightness of the blue sub-pixel is low. The human eye is more sensitive to the luminance from the experience of the human eye viewing the display, and therefore to the amount of light emitted by the green and red sub-pixels compared to the blue sub-pixel. In the embodiment of the present invention, the second sub-pixel is set to be the green sub-pixel or the red sub-pixel, so that the number of light emitted by the second sub-pixel in the sixth frame scanning mode and the seventh frame scanning mode is relatively large. And in the technical scheme that the fourth frame scanning mode and the fifth frame scanning mode are alternately arranged, the light emitting quantity of the second sub-pixels is large. That is, the embodiment of the invention sets the green sub-pixel or the red sub-pixel to emit more light in each frame, so as to reduce the influence of the low line frequency mode on the display image quality.

It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A display panel, comprising:

the shift register comprises a plurality of groups of shift register groups, a plurality of starting signal lines and at least one group of clock signal line groups, wherein each group of shift register groups is correspondingly and electrically connected with one starting signal line, and at least two groups of shift register groups are electrically connected to the same group of clock signal line groups;

for the shift register units in the same shift register group, in the column direction, at least one shift register unit in a different shift register group is included between at least two adjacent shift register units;

for the shift register units of the same shift register group, the output ends of the shift register units are electrically connected with the scanning lines, the shift signal input end of the first stage of the shift register unit in the shift register group is electrically connected with one starting signal line, and the shift signal input end of the next stage of the shift register unit is electrically connected with the output end of the previous stage of the shift register unit;

for the shift register units of different groups of shift register groups, the clock signal ends of the shift register units of at least two groups of shift register groups are electrically connected with the same group of clock signal line groups.

2. The display panel according to claim 1, wherein the sub-pixels electrically connected to each shift register unit through the scan lines have the same color for the same shift register group;

for different shift register groups, the sub-pixels of the shift register units of at least two shift register groups, which are electrically connected through the scanning lines, have different colors.

3. The display panel according to claim 2, wherein the sub-pixels comprise a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the colors of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other;

the sub-pixels in the same row have the same color, and each scanning line is electrically connected with the sub-pixels in the same row;

the first color sub-pixels, the second color sub-pixels and the third color sub-pixels are sequentially and alternately arranged in a circulating manner in the column direction.

4. The display panel according to claim 3, wherein the plurality of shift register groups include a first shift register group, a second shift register group, and a third shift register group;

the at least one group of clock signal line groups comprises a first clock signal line group, and the clock signal end of each shift register unit of each group of shift register groups is electrically connected with the first clock signal line group;

the plurality of starting signal lines comprise a first starting signal line, a second starting signal line and a third starting signal line;

a shift signal input end of the shift register unit of the first stage of the first shift register group is electrically connected with the first starting signal line, and each shift register unit of the first shift register group is electrically connected with the first color sub-pixel through the scanning line;

the shift signal input end of the shift register unit of the first stage of the second shift register group is electrically connected with the second starting signal line, and each shift register unit of the second shift register group is electrically connected with the second color sub-pixel through the scanning line;

a shift signal input end of the shift register unit of the first stage of the third shift register group is electrically connected with the third start signal line, and each shift register unit of the third shift register group is electrically connected with the third color sub-pixel through the scanning line;

the shift register units of the first shift register group, the shift register units of the second shift register group and the shift register units of the third shift register group are sequentially and alternately arranged in a circulating manner in the column direction.

5. The display panel according to claim 3, wherein the shift register groups include a fourth shift register group, a fifth shift register group, a sixth shift register group, a seventh shift register group, an eighth shift register group, and a ninth shift register group;

the at least one group of clock signal line groups comprises a second clock signal line group, and the clock signal end of each shift register unit of each group of shift register group is electrically connected with the second clock signal line group;

the plurality of starting signal lines comprise a fourth starting signal line, a fifth starting signal line, a sixth starting signal line, a seventh starting signal line, an eighth starting signal line and a ninth starting signal line;

a shift signal input end of the shift register unit of the first stage of the fourth shift register group is electrically connected with the fourth start signal line, and each shift register unit of the fourth shift register group is electrically connected with the first color sub-pixel of the odd-numbered row in the row where the first color sub-pixel is located through the scanning line;

a shift signal input end of the shift register unit of the first stage of the fifth shift register group is electrically connected with the fifth start signal line, and each shift register unit of the fifth shift register group is electrically connected with the second color sub-pixels of the odd-numbered row in the row where the second color sub-pixels are located through the scanning line;

a shift signal input end of the shift register unit of the first stage of the sixth shift register group is electrically connected with the sixth start signal line, and each shift register unit of the sixth shift register group is electrically connected with the third color sub-pixels of the odd-numbered row in the row where the third color sub-pixels are located through the scanning line;

a shift signal input end of the shift register unit of the first stage of the seventh shift register group is electrically connected with the seventh start signal line, and each shift register unit of the seventh shift register group is electrically connected with the first color sub-pixel of the even-numbered row in the row where the first color sub-pixel is located through the scanning line;

a shift signal input end of the shift register unit of the first stage of the eighth shift register group is electrically connected with the eighth start signal line, and each shift register unit of the eighth shift register group is electrically connected with the second color sub-pixels of the even-numbered row in the row where the second color sub-pixels are located through the scanning line;

a shift signal input end of the shift register unit of the first stage of the ninth shift register group is electrically connected with the ninth start signal line, and each shift register unit of the ninth shift register group is electrically connected with the third color sub-pixels of the even-numbered row in the row where the third color sub-pixels are located through the scanning line;

the shift register units of the fourth shift register group, the shift register units of the fifth shift register group, the shift register units of the sixth shift register group, the shift register units of the seventh shift register group, the shift register units of the eighth shift register group and the shift register units of the ninth shift register group are sequentially and alternately arranged in a circulating manner in the column direction.

6. The display panel according to claim 1, further comprising a display region and a non-display region;

each shift register group is located in the non-display area, and the shift register groups are respectively located on two sides of the display area;

the at least one group of clock signal line groups comprises a third clock signal line group and a fourth clock signal line group, the shift register groups positioned on one side of the display area are electrically connected with the third clock signal line group, and the shift register groups positioned on the other side of the display area are electrically connected with the fourth clock signal line group;

the shift register group positioned on one side of the display area is arranged corresponding to the shift register group positioned on the other side of the display area; and two ends of one scanning line are respectively connected with the shift register units of the two shift register groups.

7. The display panel according to claim 1, further comprising a display region and a non-display region;

the at least one group of clock signal line groups comprises a fifth clock signal line group and a sixth clock signal line group, the shift register groups positioned on one side of the display area are electrically connected with the fifth clock signal line group, and the shift register groups positioned on the other side of the display area are electrically connected with the sixth clock signal line group;

the shift register group positioned on one side of the display area is electrically connected with the different scanning lines respectively with the shift register group positioned on the other side of the display area.

8. A display device, comprising: a timing controller, a data driver, and the display panel according to any one of claims 1 to 7;

9. A driving method of a display panel is characterized in that,

the display panel includes: a plurality of scanning lines extending in a row direction and arranged in a column direction;

the shift register comprises M groups of shift register groups, M starting signal lines and at least one group of clock signal line groups, wherein each group of shift register groups is correspondingly and electrically connected with one starting signal line, and at least two groups of shift register groups are electrically connected to the same group of clock signal line groups;

the driving method of the display panel includes:

in the first line frequency mode, sending a clock signal to a clock signal line group in one frame; sequentially sending starting signals to M starting signal lines, and controlling M groups of shift register groups to sequentially output scanning signals one by one, wherein each group of shift register groups in the M groups of shift register groups outputs scanning signals, and each shift register unit sequentially outputs scanning signals step by step;

wherein M and N are positive integers, M is more than or equal to 2, and N is less than M;

in the first line frequency mode, the clock signals sent by the clock signal line group are first-class clock signals, and the starting signals on the starting signal lines are first-class starting signals;

in the second line frequency mode, the clock signal sent by the clock signal line group is a second type of clock signal, and the starting signal on the starting signal line is a second type of starting signal;

the pulse width of the second type clock signal is larger than that of the first type clock signal;

the pulse width of the second type starting signal is larger than that of the first type starting signal;

and overlapping the scanning time of the shift register group which is not gated in the first line frequency mode to the scanning time of the shift register group which is gated in the second line frequency mode.

10. The method according to claim 9, wherein the sequentially sending start signals to M start signal lines to control M groups of the shift register groups to sequentially output scan signals group by group, or sequentially sending start signals to N start signal lines to control N groups of the shift register groups to sequentially output scan signals group by group, comprises:

and sending a starting signal to the starting signal line connected with the next shift register group at the same time or after the last shift register unit of the previous shift register group outputs a scanning signal.

11. The method for driving a display panel according to claim 9, wherein in the first line frequency mode, a scanning time of one frame is T1; in the second line frequency mode, the scanning time of one frame is T2; wherein, T1 is more than 0, T2 is more than 0, and T2 is less than or equal to T1.

12. The method for driving a display panel according to claim 9,

the pulse width of the second type clock signal is N1/N2 times of the pulse width of the first type clock signal;

the pulse width of the second type of starting signals is N1/N2 times that of the first type of starting signals;

where N1 is the number of the scan lines, and N2 is the number of scan lines electrically connected to the shift register group outputting the scan signal in one frame.

13. The method according to any of claims 9 to 12, wherein each of the shift register groups is configured to output scan signals to subpixels of the same color, each of the color subpixels receives at least one of the scan signals output by the shift register group, and at least two of the shift register groups respectively output scan signals to subpixels of different colors;

in the first line frequency mode, M groups of shift register groups output scanning signals group by group in turn according to a preset scanning sequence, wherein the color of the sub-pixels corresponding to the next group of shift register groups is different from the color of the sub-pixels corresponding to the previous group of shift register groups;

in the second line frequency mode, N groups of shift register groups output scanning signals one by one in sequence according to a preset scanning sequence.

14. The method for driving a display panel according to claim 13, further comprising:

the sub-pixels comprise a first color sub-pixel, a second color sub-pixel and a third color sub-pixel, and the colors of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel are different from each other;

the M shift register groups include a first shift register group, a second shift register group, and a third shift register group, the first shift register group outputs a scan signal to the first color sub-pixel, the second shift register group outputs a scan signal to the second color sub-pixel, and the third shift register group outputs a scan signal to the third color sub-pixel;

the second line frequency mode comprises a first frame scanning mode, a second frame scanning mode and a third frame scanning mode;

in the first frame scanning mode, in one frame, the first shift register group outputs scanning signals;

in the second frame scanning mode, in one frame, the second shift register group outputs scanning signals;

in the third frame scanning mode, in one frame, the third shift register group outputs scanning signals;

15. The method for driving a display panel according to claim 13, further comprising:

the second line frequency mode comprises a fourth frame scanning mode and a fifth frame scanning mode;

in the fourth frame scanning mode, in one frame, the first shift register group and the second shift register group sequentially output scanning signals group by group;

in the fifth frame scanning mode, in one frame, the second shift register group and the third shift register group sequentially output scanning signals group by group;

in the second line frequency mode, in the frame image refreshing process, the fourth frame scanning mode and the fifth frame scanning mode are alternately set, or in the frame image refreshing process, two continuous frames adopt the fourth frame scanning mode and two continuous frames adopt the fifth frame scanning mode, and the fourth frame scanning mode and the fifth frame scanning mode are alternately set.

16. The method for driving a display panel according to claim 13, further comprising:

the M groups of shift register groups comprise a fourth shift register group, a fifth shift register group, a sixth shift register group, a seventh shift register group, an eighth shift register group and a ninth shift register group;

the fourth shift register group and the seventh shift register group are respectively used for outputting scanning signals to first color sub-pixels of odd rows and first color sub-pixels of even rows in a row where the first color sub-pixels are located, the fifth shift register group and the eighth shift register group are respectively used for outputting scanning signals to second color sub-pixels of odd rows and second color sub-pixels of even rows in a row where the second color sub-pixels are located, and the sixth shift register group and the ninth shift register group are respectively used for outputting scanning signals to third color sub-pixels of odd rows and third color sub-pixels of even rows in a row where the third color sub-pixels are located;

the second line frequency mode comprises a sixth frame scanning mode, a seventh frame scanning mode, an eighth frame scanning mode and a ninth frame scanning mode;

in the sixth frame scanning mode, in one frame, the fourth shift register group, the fifth shift register group, the sixth shift register group and the eighth shift register group sequentially output scanning signals group by group according to a preset scanning order;

in the seventh frame scanning mode, in one frame, the seventh shift register group, the eighth shift register group, the ninth shift register group, and the fifth shift register group sequentially output scanning signals group by group according to a preset scanning order;

in the eighth frame scanning mode, in one frame, the fourth shift register group, the fifth shift register group and the sixth shift register group sequentially output scanning signals group by group according to a preset scanning order;

in the ninth frame scanning mode, in one frame, the seventh shift register group, the eighth shift register group and the ninth shift register group sequentially output scanning signals group by group according to a preset scanning order;

in the second line frequency mode, in a frame image refreshing process, the sixth frame scanning mode and the seventh frame scanning mode are alternately set, or in the frame image refreshing process, two consecutive frames adopt the sixth frame scanning mode and two consecutive frames adopt the seventh frame scanning mode, or in the frame image refreshing process, the eighth frame scanning mode and the ninth frame scanning mode are alternately set, or in the frame image refreshing process, two consecutive frames adopt the eighth frame scanning mode and two consecutive frames adopt the ninth frame scanning mode.

17. The method for driving a display panel according to any one of claims 14 to 16, wherein the second color sub-pixel is a green sub-pixel, or the second color sub-pixel is a red sub-pixel.