Display panel and driving method of display panel

Abstract

The application discloses a display panel and a driving method thereof. The display panel comprises a timing controller, a scan driving circuit and a data driving circuit. The timing controller controls the scan driving circuit to sequentially input scan pulses to the scan lines and controls the data driving circuit to input data pulses to the data lines. The scan pulses of the plurality of scan lines overlap. The scan pulse is at least twice the data pulse. The scan lines are divided into groups according to the data pulse. The plurality of scan lines in the same group share one data pulse. Each group of scan lines comprises at least a first scan line inputting a first scan pulse and a second scan line inputting a second scan pulse. The falling edge of the second scan pulse corresponding to the second scan line of the current group is earlier than the rising edge of the data pulse corresponding to the scan line of the next group. The display effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display panel, in particular to a display panel and a driving method of the display panel. BACKGROUND

[0002] The current LCD industry gradually develops towards high refresh rate and high resolution, and a new display mode, i.e. HSR (Hardware Super Resolution) mode, is introduced. The HSR mode improves the refresh rate of the screen by using GDL signal frequency multiplication.

[0003] The HSR mode is actually a mode in which the output of multiple scanning signals shares a data output. In order to make adjacent two scanning lines share a data line, the data signal is output when the scanning signal of the even scanning line is falling. At this time, due to the influence of the load, the scanning signal is not a perfect output waveform, and there is a certain Falling time (falling edge). The existence of the Falling time (falling edge) and the increase of the charging time will cause the output falling edge of the even scanning line to cover part of the data signal, forming a wrong charging phenomenon, and causing the even line to appear abnormal brightening. SUMMARY

[0004] The present application provides a display panel and a driving method of the display panel to solve the wrong charging problem in the HSR mode.

[0005] To solve the above problems, the present application provides a display panel in the first aspect. The display panel comprises a plurality of arrayed pixel units, a plurality of scanning lines arranged along a row direction, a plurality of data lines arranged along a column direction, a scanning driving circuit electrically connected to the scanning lines, a data driving circuit electrically connected to the data lines, a timing controller connected to the scanning driving circuit and the data driving circuit, the timing controller controls the scanning driving circuit to input scanning pulses to the scanning lines in sequence, and controls the data driving circuit to input data pulses to the data lines, the scanning pulses of the plurality of scanning lines overlap, wherein the scanning pulse is at least twice the data pulse, the scanning lines are divided into a plurality of groups according to the data pulse, the plurality of scanning lines in the same group share one data pulse, and each group of scanning lines comprises at least a first scanning line inputting a first scanning pulse and a second scanning line inputting a second scanning pulse, wherein the falling edge of the second scanning pulse corresponding to the second scanning line of the current group is earlier than the rising edge of the data pulse corresponding to the scanning line of the next group.

[0006] The pulse width of the second scanning pulse in the same group is less than the pulse width of the first scanning pulse.

[0007] The scanning pulse is twice the data pulse, and the pixel units corresponding to two adjacent rows of the scanning lines share one data pulse.

[0008] The rising edge of the data pulse corresponding to the current group is between the falling edge of the scanning pulse of the second scanning line of the previous group and the falling edge of the scanning pulse corresponding to the first scanning line of the current group.

[0009] The falling edge of the data pulse corresponding to the current group is between the falling edge of the scanning pulse of the second scanning line of the current group and the falling edge of the scanning pulse corresponding to the first scanning line of the next group.

[0010] The time difference between the rising edge of the scanning pulse of the second scanning line and the rising edge of the first scanning line of each group is the same; the time difference between the rising edge of the scanning pulse of the second scanning line and the rising edge of the first scanning line of the current group is the same as the time difference between the rising edge of the scanning pulse of the first scanning line of the current group and the rising edge of the scanning pulse of the second scanning line of the previous group.

[0011] The scanning pulse is three times the data pulse, and the pixel units corresponding to three adjacent rows of the scanning lines share one data pulse.

[0012] The scanning line of each group further includes a third scanning line inputting a third scanning pulse, the third scanning line is located between the first scanning line and the second scanning line, and the time difference between the rising edge of the second scanning pulse and the rising edge of the third scanning pulse of each group is equal to the time difference between the rising edge of the third scanning pulse and the rising edge of the first scanning pulse.

[0013] The pulse width of the third scanning pulse is the same as the pulse width of the first scanning pulse.

[0014] The display panel at least includes a first level converter and a second level converter, the timing controller inputs the first scanning pulse to the first scanning line of each group through the first level converter, and inputs the second scanning pulse to the second scanning line of each group through the second level converter.

[0015] The second aspect of the application also provides a driving method of a display panel, wherein the display panel includes the display panel of any one of the above embodiments, and the driving method includes: controlling, by the timing controller, the falling edge of the scanning pulse of the second scanning line of each group to be earlier than the rising edge of the data pulse corresponding to the next group of scanning lines.

[0016] The pulse width of the scanning pulse input to the second scanning line of each group is shortened to make the falling edge of the scanning pulse of the second scanning line of the current group earlier than the rising edge of the data pulse corresponding to the next group of scanning lines.

[0017] wherein the falling edge of the scan pulse of the second scan line of the current group is earlier than the rising edge of the data pulse of the next group of scan lines by shortening the pulse width of the data pulse input to each group.

[0018] The beneficial effect of the present application is that in the HSR display mode, the pulse width of the first scan pulse and the second scan pulse on different scan lines input to each group is controlled by the timing controller and the level shifter, and the falling edge of the scan pulse on the last scan line of the current group is earlier than the rising edge of the data pulse of the next group, thereby avoiding the data pulse of the next group from being wrongly charged to the pixel unit corresponding to the scan line of the current group, and improving the display effect in the HSR display mode. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0020] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the display panel of the present application;

[0021] Figure 2 FIG. 2 is a conventional timing diagram of the scan pulse of the present application;

[0022] Figure 3 FIG. 3 is a pulse timing diagram of the first embodiment of the display panel of the present application;

[0023] Figure 4 FIG. 4 is a pulse timing diagram of the second embodiment of the display panel of the present application;

[0024] Figure 5 FIG. 5 is a structural schematic diagram of the third embodiment of the display panel of the present application;

[0025] Figure 6 FIG. 6 is a flow schematic diagram of an embodiment of the driving method of the display panel of the present application.

[0026] REFERENCE NUMERALS

[0027] 110 scan driving circuit; 120 data driving circuit; 200 timing controller; PXL pixel unit. DETAILED DESCRIPTION

[0028] With reference to the drawings and the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the protection scope of the present application.

[0029] The terms used in the embodiments of the present application are merely for the purpose of describing particular embodiments, and are not intended to limit the present application. The singular forms "a", "an" and "the" used in the embodiments of the present application and the appended claims are intended to include plural forms, unless the context clearly indicates otherwise. "Plural" generally includes at least two, but does not exclude the case of including at least one.

[0030] It should be understood that the term "and / or" used herein is merely an association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this application generally represents an "or" relationship between the front and rear associated objects. The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence.

[0031] It should be understood that the terms "include", "contain" or any other variation used herein are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or device. Without more limitations, the elements defined by the statement "include" do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0032] It should be noted that if the present application has any direction indication (such as up, down, left, right, front, back, etc.), the direction indication is only used to explain the relative position relationship, motion condition, etc. between the components in a certain posture (as shown in the drawings), if the specific posture changes, the direction indication will also change accordingly.

[0033] Reference to an "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of one another. As will be apparent to those of ordinary skill in the art, embodiments described herein can be combined with other embodiments.

[0034] The application provides a display panel, please refer to Figure 1 , Figure 1 is a structural schematic diagram of an embodiment of the display panel. As shown in Figure 1 , the display panel includes a plurality of pixel units arranged in an array, a plurality of scan lines G1-Gn arranged in a row direction and a plurality of data lines D1-Dm arranged in a column direction, a scan driving circuit 110 and a data driving circuit 120. The scan driving circuit 110 is coupled with the scan lines G1, G2, G3, G4,..., Gn-1, Gn respectively, and the data driving circuit 120 is coupled with the data lines D1, D2, D3, D4,..., Dm-1, Dm respectively. The timing controller 200 can input a control signal to the scan driving circuit 110 through a level shifter, so as to drive the scan lines G1, G2, G3, G4,..., Gn-1, Gn, so that the pixel circuit of the pixel unit PXL is turned on. The timing controller 200 simultaneously inputs a data pulse to the data driving circuit 120, so as to make the data driving circuit 120 input a data voltage to the data line, thereby charging the pixel unit PXL, making the pixel unit PXL input a corresponding data voltage, and realizing a picture display function.

[0035] The scan pulses of the plurality of scan lines D overlap, please refer to Figure 2 , Figure 2 is a conventional timing diagram of the scan pulse of the application. As shown in Figure 2 , taking the pulse width of the scan pulse as 6H for example, when the first row of scan lines G1 scans to 1H, the second row of scan lines G2 starts to scan; when the first row of scan lines G1 scans to 2H, the third row of scan lines G3 starts to scan; when the first row of scan lines G1 scans to 3H, the fourth row of scan lines G4 starts to scan; when the first row of scan lines G1 scans to 4H, the fifth row of scan lines G5 starts to scan; when the first row of scan lines G1 scans to 5H, the sixth row of scan lines G6 starts to scan; when the first row of scan lines G1 scans to 6H, the first row of scan lines G1 scan signal is turned off, and the seventh row of scan lines starts to scan, and the like, thereby saving the pre-charging time of the pixel units corresponding to the first six rows of scan lines, and improving the refresh rate of the display panel.

[0036] To further improve the refresh rate and high resolution of the display panel, the scan pulses on the scan line are frequency multiplied to increase the screen refresh rate.

[0037] In this embodiment, the scan pulse is at least twice the data pulse, meaning the scan pulse uses at least a 2x frequency. The scan lines are divided into multiple groups based on the data pulse, with multiple scan lines in the same group sharing a single data pulse. Each group of scan lines includes at least a first scan line that receives a first scan pulse and a second scan line that receives a second scan pulse.

[0038] Specifically, taking a scan pulse with a frequency of 2x as an example, the scan pulse is twice the data pulse. Pixels corresponding to two adjacent scan lines share a single data pulse for charging. Please refer to [link / reference]. Figure 2 As shown in the data pulse Vdata, the first scan line G1 and the second scan line G2 form a group, and the pixel units corresponding to the first scan line G1 and the second scan line G2 share the first scan pulse V1; the third scan line G3 and the fourth scan line G4 form a group, and the pixel units corresponding to the third scan line G3 and the fourth scan line G4 share the second data pulse V2; the fifth scan line G5 and the sixth scan line G6 form a group, and the pixel units corresponding to the fifth scan line G5 and the sixth scan line G6 share the third data pulse V3. For example... Figure 2 As shown, the pixel units corresponding to the first six scan lines use six scan pulses and three data pulses, and so on, with the number of scan pulses on the scanning panel being twice the number of data pulses. During the charging process of the pixel units by the regular scan pulses and data pulses, when the second scan line G2 finishes scanning, the data line inputs a second data pulse V2, which is written to the pixel units of the third and fourth rows. However, because the falling edge of the scan pulse for the second scan line G2 requires time, the second row pixel circuit is not completely turned off when the third and fourth row pixel units are writing data pulse V2. This results in some of the data voltage of the third and fourth row pixel units being written into the second row pixel units, causing a misalignment phenomenon.

[0039] To address this issue, this application advances the falling edge of the scan pulse for the second scan line of each group or delays the rising edge of the second data pulse for each group, so that the falling edge of the scan pulse for the second scan line precedes the rising edge of the second data pulse. In other words, the falling edge of the scan pulse for the second scan line G2 of the first group precedes the rising edge of the second data pulse V2 corresponding to the second scan line of the second group.

[0040] Specifically, please refer to Figure 3 , Figure 3 This is a pulse timing diagram of a first embodiment of the display panel of this application. Figure 3As shown, two adjacent scanning lines are a group, specifically, the first scanning line G11 and the second scanning line G12 of the first group are the first scanning line G1 and the second scanning line G2; the first scanning line G21 and the second scanning line G22 of the second group are the third scanning line G3 and the fourth scanning line G4; the first scanning line G31 and the second scanning line G32 of the third group are the fifth scanning line G5 and the sixth scanning line G6, and so on. The first scanning line Gn1 and the second scanning line Gn2 of the nth group are the odd-numbered scanning line and the even-numbered scanning line, respectively.

[0041] In the embodiment, in order to solve the problem that the second data pulse V2 writes the voltage into the pixel units corresponding to the scanning lines (G3, G4) of the second group, but not into the pixel units corresponding to the second scanning line G2 of the first group, the pulse width of the second scanning pulse H2 of each group is made smaller than the pulse width of the first scanning pulse H1. Specifically, the falling edge of the scanning pulse on the second scanning line (including G2, G4, G6,...) of each group is made earlier. That is, the pulse width of the scanning pulse of the even-numbered row is made smaller than the pulse width of the scanning pulse of the odd-numbered row. As shown in FIG. 3, the pulse width of the scanning pulse of the even-numbered row is made smaller than the pulse width of the scanning pulse of the odd-numbered row. Figure 3 As shown, when the pixel units corresponding to the scanning lines of the second group are charged, the rising edge of the data pulse V2 of the current group (the second group) is between the falling edge of the scanning pulse of the second scanning line G2 of the previous group (the first group) and the falling edge of the scanning pulse corresponding to the first scanning line G3 of the current group (the second group), so that the data pulse V2 of the current group (the second group) can charge the pixel units of the current group, and does not charge the pixel units of the previous group (the first group), thereby avoiding affecting the display of the pixel units of the previous group when the pixel units of the current group (the second group) are charged. Further, the falling edge of the data pulse V2 of the current group (the second group) is between the falling edge of the scanning pulse of the second scanning line (G4) of the current group (the second group) and the falling edge of the scanning pulse of the first scanning line (G5) of the next group (the third group), so that the data pulse V2 of the current group (the second group) only pre-charges the pixel units of the next group (the third group) when charging the pixel voltage of the pixel units of the current group, and does not charge the data pulse of the current group into the pixel units of the third group. In addition, since the falling edge (off) of the data pulse of the current group, the scanning lines of the next group (the third group) are still in the open state, the data voltage charged by the current group can be discharged. As shown in FIG. 4, when the pixel units of the second group are charged in the T2 period, the pixel units of the first group and the third group have no data voltage input or the input data voltage is discharged, so that the pixel units of the second group display, and the pixel units of the first group and the third group do not display (black signal). Figure 3 As shown, when in the T2 period, that is, when the pixel units of the second group are charged, the pixel units of the first group and the third group have no data voltage input or the input data voltage is discharged, so that the pixel units of the second group display, and the pixel units of the first group and the third group do not display (black signal), as shown in FIG. 4. Figure 3The right part of FIG. 2 shows the display effect of the current group. It is to be noted that, since the charging time of the pixel units of the second scan line G4 of the current group is longer than that of the pixel units of the first scan line G3, the brightness of the pixel units corresponding to the first scan line G3 of the current group (the second group) is lower than that of the pixel units corresponding to the second scan line G4, thereby realizing the difference display of the pixel units of the adjacent two rows.

[0042] In the embodiment, the rising edge interval of the scan pulses on each adjacent scan line is the same. Specifically, the time difference between the rising edge of the scan pulse of the second scan line and the rising edge of the scan pulse of the first scan line of each group is the same, that is, the time difference between the rising edge of the scan pulse of the second scan line and the rising edge of the scan pulse of the first scan line is the same as the time difference between the rising edge of the scan pulse of the fourth scan line and the rising edge of the scan pulse of the third scan line, and the time difference between the rising edge of the scan pulse of the sixth scan line and the rising edge of the scan pulse of the fifth scan line. Moreover, the time difference between the rising edge of the scan signal of the second scan line and the rising edge of the scan pulse of the first scan line of the current group (the second group) is the same as the time difference between the rising edge of the scan pulse of the first scan line of the current group and the rising edge of the scan pulse of the second scan line of the previous group. Specifically, the time difference between the rising edge of the scan pulse of the fourth scan line G4 (the second scan line of the current group) and the rising edge of the scan pulse of the third scan line G3 (the first scan line of the current group) is the same as the time difference between the rising edge of the scan pulse of the third scan line G3 (the first scan line of the current group) and the rising edge of the scan pulse of the second scan line G2 (the second scan line of the previous group). In other embodiments, the interval time difference can also be different, which is not limited herein.

[0043] In a preferred embodiment, the difference between the pulse width of the second scan pulse and the pulse width of the first scan pulse is half of the time difference of the scan signals of the adjacent two rows. Specifically, the time difference between the falling edge of the second scan pulse and the falling edge of the first scan pulse is half of the time difference between the rising edge of the second scan pulse and the rising edge of the first scan pulse. Taking the pulse width of the first scan pulse as 6H as an example, the pulse width of the second scan pulse is 5.5H, which is a preferred embodiment. In another embodiment, the difference between the pulse width of the second scan pulse and the pulse width of the first scan pulse can also be the time difference of the scan signals of the adjacent two rows, that is, the time difference between the falling edge of the second scan pulse and the falling edge of the first scan pulse is 0, so that the scan pulses of the first scan line and the second scan line of the same group are turned off at the same time.

[0044] In another embodiment, the scan pulse is three times of the data pulse, that is, the pixel units corresponding to the adjacent three rows of scan lines share one data pulse. Please further refer to FIG. 3. Figure 4 , Figure 4This is a pulse timing diagram for a second embodiment of the display panel of this application. Figure 4 As shown, each group of scan lines includes a first scan line Gn1 input by a first scan pulse H1, a second scan line Gn2 input by a second scan pulse H2, and a third scan line Gn3 input by a third scan pulse H3, where n is the number of the current group. The first scan line G11, the third scan line G13, and the second scan line G12 of the first group are respectively the first row scan line G1, the second row scan line G2, and the third row scan line G3; the first scan line G21, the third scan line G23, and the second scan line G22 of the second group are respectively the fourth row scan line G4, the fifth row scan line G5, and the sixth row scan line G6, and so on. The third scan line Gn3 is located between the first scan line Gn1 and the second scan line Gn2, meaning that the second scan line Gn2 is the last scan line of each group. In other embodiments, the scan pulse can also be 4, 5, or 6 times the data pulse, and each group of scan lines includes 4, 5, or 6 scan lines; this is not limited here.

[0045] In this embodiment, the time difference between the rising edge of the second scan pulse H2 of the second scan line Gn2 and the rising edge of the third scan pulse H3 of the third scan line Gn3 is equal to the time difference between the rising edge of the third scan pulse H3 of the third scan line Gn3 and the rising edge of the first scan pulse H1 of the first scan line Gn1. Furthermore, the time interval between the rising edges of the scan pulses on corresponding scan lines of adjacent groups is also the same, thereby ensuring that the refresh rate of the pixel units corresponding to each scan line in the display panel is the same, that is, making the rising edge interval of the scan signals on every two adjacent scan lines the same.

[0046] In this embodiment, the second scan line Gn2 is the last scan line of each group. By making the pulse width of the second scan pulse on the second scan line Gn2 lower than the pulse width of the first scan pulse H2 of the first scan line, and lower than the pulse width of the third scan pulse of the third scan line, the falling edge of the second scan pulse is advanced to avoid mischarging of the pixel units of the current group by the data pulse corresponding to the next group. Figure 4 As shown, during the T2 time period, when the second data pulse V2 charges the first scan line G21, the third scan line G23, and the second scan line G22 of the second group, the first scan line G11, the third scan line G13, and the second scan line G12 of the previous group are all turned off in advance during the charging process, so that incorrect charging will not occur.

[0047] In a preferred embodiment, the pulse width of the third scan pulse on the third scan line Gn3 is the same as the pulse width of the first scan pulse on the first scan line Gn1. In another preferred embodiment, the pulse width of the third scan pulse on the third scan line Gn3 is the same as the pulse width of the second scan pulse on the second scan line Gn1. In other embodiments, the pulse width of the third scan pulse on the third scan line Gn3 is any width value between the pulse width of the first scan pulse on the first scan line Gn1 and the pulse width of the second scan pulse on the second scan line Gn1, and is not limited herein.

[0048] Furthermore, the display panel includes at least a first level converter and a second level converter. The timing controller inputs a first scan pulse to each group of first scan lines G1 via the first level converter, and inputs a second scan pulse to each group of second scan lines via the second level converter. For details, please refer to [link to relevant documentation]. Figure 5 , Figure 5 This is a schematic diagram of the structure of the third embodiment of the display panel of this application. Figure 5 As shown, when the scan pulse is twice the number of data pulses, the timing controller sequentially inputs the first scan pulse to the odd-numbered scan lines (G1 / G3 / G5 / G7...) via the first level shifter (Level shift1). Each first scan pulse has the same pulse width, and the first scan pulses on adjacent odd-numbered scan lines can partially overlap. The timing controller then sequentially inputs the second scan pulse to the even-numbered scan lines (G2 / G4 / G6 / G8...) via the second level shifter (Level shift2). The second scan pulses have the same pulse width and are shorter than the pulse width of the first scan pulse. Alternating odd-numbered scan lines can use the same timing signal CLK (e.g., the scan pulses on the first and seventh scan lines do not overlap and can use the same timing signal) or different timing signals. Similarly, alternating even-numbered scan lines can use the same timing signal CLK or different timing signals CLK; this is not limited here.

[0049] Furthermore, when the scan pulse is three times the data pulse, preferably, the display panel may also include a third level converter. The timing controller inputs a third scan pulse to each group of third scan lines through the third level converter. The pulse width of the third scan pulse may be different from the pulse widths of both the first and second scan pulses, and is not limited here. In another embodiment, a third scan pulse with the same pulse width as the first scan pulse may be directly input to the third scan line through the first level converter, and is not limited here either.

[0050] In the embodiment, the CLK signal of the scan driving circuit is generated through the Level shift signal, the multiple level converters are used to realize the differential display in the display panel, and the scan signals on the different scan lines in each group are controlled through the different level converters.

[0051] In the double frequency HSR mode, in order to improve the error flushing problem of the even row scan lines, the high level time of the CLK signal output of the even row is shortened. Since the high level time on the even row scan line (G2) is shortened, the falling time of the corresponding even row scan line is also advanced, which can avoid the overlap with the data signal of the next group of scan lines (G3 / G4) and avoid the error flushing phenomenon, thereby improving the display effect of the HSR. In actual application, the reduction of the high level time on the even row scan line needs to be confirmed according to the actual debugging. The high level time of the odd row is increased to avoid the error flushing phenomenon, so the difference between the high level time of the odd row and the even row can also be used to achieve the difference.

[0052] The application further provides a driving method of a display panel, wherein the display panel is the display panel in any one of the above embodiments. For details, please refer to Figure 6 , Figure 6 FIG. 1 is a flowchart of an embodiment of the driving method of the display panel. The driving method of the display panel comprises the following steps.

[0053] In step S11, the falling edge of the scan pulse of the second scan line of each group is controlled to be earlier than the rising edge of the data pulse of the scan line of the next group through the timing controller.

[0054] The step specifically comprises the following steps: the pulse width of the scan pulse input to the second scan line of each group is shortened through the timing controller, so that the falling edge of the scan pulse of the second scan line of the current group is earlier than the rising edge of the data pulse of the next group. Specifically, the rising edge of the scan pulse of the second scan line of each group is unchanged, the pulse width of the scan pulse on the second scan line is shortened, so that the falling edge of the scan pulse of the second scan line is advanced, so that the falling edge of the scan pulse of the current group is earlier than the rising edge of the data pulse of the next group. Specifically, the timing controller outputs at least two different scan pulse widths, and then at least two level converters are used to input the scan pulses with different pulse widths to the first scan line and the second scan line of each group in sequence, wherein the interval time and the pulse width of the first scan pulse on the first scan line of the adjacent group are the same, the interval time and the pulse width of the second scan pulse on the second scan line of the adjacent group are the same, and the pulse width of the first scan pulse and the second scan pulse in the same group is different.

[0055] The step can further include: controlling, by the timing controller, the data driving circuit to shorten the pulse width of the data pulse input to the scan line corresponding to each group, so that the falling edge of the scan pulse of the second scan line of the current group is earlier than the rising edge of the data pulse of the next group. Specifically, the falling edge of the data pulse of each group is kept unchanged, the rising edge of the data pulse of each group is delayed by shortening the pulse width of the data pulse of each group, so that the falling edge of the scan pulse of the current group is earlier than the rising edge of the data pulse of the next group.

[0056] The application has the following beneficial effects: in the HSR display mode, the pulse width of the first scan pulse and the second scan pulse input to different scan lines of each group is controlled by the timing controller and the level converter, and the falling edge of the scan pulse on the last scan line of the current group is earlier than the rising edge of the data pulse of the next group, so that the data pulse of the next group is prevented from being charged to the pixel unit corresponding to the scan line of the current group, and the display effect in the HSR display mode is improved.

[0057] The above is only an embodiment of the application, and does not limit the patent scope of the application. Any equivalent structure or equivalent flow transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.

Claims

1. A display panel, comprising a plurality of pixel units arranged in an array, a plurality of scan lines arranged in a row direction, a plurality of data lines arranged in a column direction, a scan driving circuit electrically connected to the scan lines, a data driving circuit electrically connected to the data lines, a timing controller connected to the scan driving circuit and the data driving circuit, the timing controller controls the scan driving circuit to sequentially input a scan pulse to the scan lines, and controls the data driving circuit to input a data pulse to the data lines, and the scan pulses of the plurality of scan lines overlap, characterized in that, The scan pulse is at least twice the data pulse, the scan lines are divided into groups according to the data pulse, the scan lines in the same group share one data pulse, and each group of scan lines at least includes a first scan line inputting a first scan pulse and a second scan line inputting a second scan pulse, wherein the rising edge of the data pulse corresponding to the current group is between the falling edge of the scan pulse of the second scan line of the previous group and the falling edge of the scan pulse corresponding to the first scan line of the current group; the second scan line is the last scan line of each group.

2. The display panel of claim 1, wherein, The pulse width of the second scan pulse in the same group is smaller than the pulse width of the first scan pulse.

3. The display panel of claim 2, wherein, The scan pulse is twice the data pulse, and the pixel units corresponding to adjacent two rows of scan lines share one data pulse.

4. The display panel of claim 1, wherein, The falling edge of the data pulse corresponding to the current group is between the falling edge of the scan pulse of the second scan line of the current group and the falling edge of the scan pulse corresponding to the first scan line of the next group.

5. The display panel of claim 1, wherein, The time difference between the rising edge of the scan pulse of the second scan line and the rising edge of the first scan line of each group is the same; the time difference between the rising edge of the scan pulse of the second scan line and the rising edge of the first scan line of the current group is the same as the time difference between the rising edge of the scan pulse of the first scan line of the current group and the rising edge of the scan pulse of the second scan line of the previous group.

6. The display panel of claim 2, wherein, The scan pulse is three times the data pulse, and the pixel units corresponding to adjacent three rows of scan lines share one data pulse.

7. The display panel of claim 6, wherein, Each group of scan lines further includes a third scan line inputting a third scan pulse, and the third scan line is located between the first scan line and the second scan line; the time difference between the rising edge of the second scan pulse and the rising edge of the third scan pulse of each group is equal to the time difference between the rising edge of the third scan pulse and the rising edge of the first scan pulse.

8. The display panel of claim 7, wherein, The pulse width of the third scan pulse is the same as the pulse width of the first scan pulse.

9. The display panel according to any one of claims 1-8, characterized in that, The display panel at least includes a first level shifter and a second level shifter, and the timing controller inputs the first scan pulse to the first scan line of each group through the first level shifter and inputs the second scan pulse to the second scan line of each group through the second level shifter.

10. A driving method of a display panel, characterized by, The display panel includes the display panel of any one of claims 1-9, and the driving method includes: controlling, by the timing controller, the rising edge of the data pulse corresponding to the current group to be between the falling edge of the scan pulse of the second scan line of the previous group and the falling edge of the scan pulse corresponding to the first scan line of the current group.

11. The driving method according to claim 10, wherein shortening the pulse width of the scan pulse input to the second scan line of each group so that the rising edge of the data pulse corresponding to the current group is between the falling edge of the scan pulse of the second scan line of the previous group and the falling edge of the scan pulse corresponding to the first scan line of the current group.

12. The driving method according to claim 10, wherein shortening the pulse width of the data pulse input to each group so that the rising edge of the data pulse corresponding to the current group is between the falling edge of the scan pulse of the second scan line of the previous group and the falling edge of the scan pulse corresponding to the first scan line of the current group.

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