Display panel and driving method thereof

Abstract

The present application provides a display panel and a driving method thereof, wherein the display panel includes an X-row first sub-pixel row and a Y-row second sub-pixel row. Sub-pixels of the same color in each column of sub-pixels are electrically connected to the same adjacent data line, and all sub-pixels electrically connected to the same data line have the same color. In a first time period, a scan drive circuit is used to scan the X-row first sub-pixel row row by row, and a data drive circuit is used to output data signals of either the first polarity or the second polarity to M data lines. In a second time period, a scan drive circuit is used to scan the Y-row second sub-pixel row row by row, and a data drive circuit is used to output data signals of either the second polarity or the first polarity to M data lines. In the same frame period, the polarity of the data signal received by the same data line in the first time period is opposite to the polarity of the data signal received in the second time period. The display panel will not have COF split screen or shaking head wrinkles.

Description

Technical Field

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

[0002] Liquid Crystal Display (LCD) has many advantages such as thin body, power saving, and no radiation, and has been widely used.

[0003] Currently, to balance increasing pixel charging time and pixel aperture ratio, reducing the number of data driver chips used, and lowering manufacturing costs and power consumption, double-rate driving (DRD) or triple-rate driving (TRD) liquid crystal display devices have been proposed. These devices primarily reduce the number of data lines and data driver chips by increasing the number of scan lines. However, existing DRD and TRD liquid crystal display devices suffer from insufficient sub-pixel charging, resulting in poor display quality. Summary of the Invention

[0004] In view of this, the main purpose of this application is to propose a display panel and a driving method thereof, aiming to solve the problem of insufficient sub-pixel charging in existing DRD-type liquid crystal display devices or TRD-type liquid crystal display devices, resulting in low display quality.

[0005] To achieve the above objectives, a first aspect of the present application provides a display panel, comprising a scan driver circuit, a data driver circuit, M data lines extending in a column direction and electrically connected to the data driver circuit, N scan lines extending in a row direction and electrically connected to the scan driver circuit, and a plurality of subpixels defined by the intersection of the M data lines and the N scan lines, each subpixel being electrically connected to an adjacent data line and an adjacent scan line. The plurality of subpixels include a plurality of first color subpixels, a plurality of second color subpixels, and a plurality of third color subpixels, where M ≥ 3 and N ≥ 2. The N subpixel rows include X rows of first subpixel rows and Y rows of second subpixel rows, where X + Y = N. The first subpixel rows are arranged cyclically in the row direction in the order of the first color subpixel, the second color subpixel, and the third color subpixel, and the second subpixel rows are arranged cyclically in the row direction in the order of the third color subpixel, the first color subpixel, and the second color subpixel, or in the order of the second color subpixel, the third color subpixel, and the first color subpixel. The subpixels of the same color in each column of subpixels are electrically connected to the same adjacent data line, and all subpixels electrically connected to the same data line have the same color. Each frame period during which the display panel displays an image includes a first period and a second period. During the first period, the scan driver circuit is configured to progressively scan the X-row first subpixel row, and the data driver circuit is configured to output data signals of either the first polarity or the second polarity to the M data lines, thereby driving the X-row first subpixel row to display an image. During the second period, the scan driver circuit is configured to progressively scan the Y-row second subpixel row, and the data driver circuit is configured to output data signals of either the second polarity or the first polarity to the M data lines, thereby driving the Y-row second subpixel row to display an image. In the same frame period, the polarity of the data signal received by the same data line in the first period is opposite to the polarity of the data signal received in the second period.

[0006] The display panel provided herein provides an X-row first subpixel row and a Y-row second subpixel row. Subpixels of the same color in each column of subpixels are electrically connected to the same adjacent data line, and all subpixels electrically connected to the same data line have the same color. Consequently, when displaying a monochrome image, the potential of the data signal output by the data driver circuit to each data line does not need to be repeatedly switched, thus avoiding RC delay distortion of the data signal and ensuring that each subpixel is fully charged, thereby preventing COF split screen issues. Furthermore, the display panel divides each frame period into a first period and a second period, driving the X-row first subpixel row for display in the first period and the Y-row second subpixel row for display in the second period. Furthermore, the polarity of the data signal received by the same data line in the first and second periods is opposite. This ensures that the polarity of the data signal received by the same-colored subpixels on either side of the data line is opposite, thereby preventing the occurrence of shaking head lines.

[0007] Optionally, the duration of the first period is proportional to the number X of the first sub-pixel rows, and the duration of the second period is proportional to the number Y of the second sub-pixel rows.

[0008] Optionally, the number X of the first sub-pixel rows is equal to the number Y of the second sub-pixel rows.

[0009] Optionally, the display panel includes a plurality of pixel regions arranged along a column direction, each pixel region includes at least one row of the first sub-pixel row and at least one row of the second sub-pixel row, and the sub-pixels in each pixel region are arranged in the same manner.

[0010] Optionally, each of the pixel regions includes A adjacent rows of the first sub-pixel rows and A adjacent rows of the second sub-pixel rows, where A≥1.

[0011] Optionally, the polarity of the data signal received by each sub-pixel in the first time period in the previous frame cycle is opposite to the polarity of the data signal received in the first time period in the next frame cycle, and the polarity of the data signal received by each sub-pixel in the second time period in the previous frame cycle is opposite to the polarity of the data signal received in the second time period in the next frame cycle.

[0012] Optionally, each of the first color sub-pixels includes a first color color resistor, each of the second color sub-pixels includes a second color color resistor, each of the third color sub-pixels includes a third color color resistor, and the color resistors in the sub-pixels of the same color in two adjacent columns of the sub-pixels are connected as one.

[0013] A second aspect of the present application further provides a method for driving a display panel, the display panel comprising M data lines extending in a column direction, N scan lines extending in a row direction, and a plurality of subpixels defined by the intersection of the M data lines and the N scan lines, each subpixel being electrically connected to an adjacent data line and an adjacent scan line, the plurality of subpixels comprising a plurality of first color subpixels, a plurality of second color subpixels, and a plurality of third color subpixels, where M ≥ 3 and N ≥ 2. The N rows of subpixels comprise X rows of first subpixels and Y rows of second subpixels, where X + Y = N. Among them, the first sub-pixel row is arranged cyclically in the row direction in the order of the first color sub-pixel, the second color sub-pixel and the third color sub-pixel, and the second sub-pixel row is arranged cyclically in the row direction in the order of the third color sub-pixel, the first color sub-pixel and the second color sub-pixel or in the order of the second color sub-pixel, the third color sub-pixel and the first color sub-pixel; the sub-pixels with the same color in each column are electrically connected to the same data line of the two adjacent data lines, and the sub-pixels electrically connected to the same data line have the same color. The driving method includes: acquiring picture data of a frame to be displayed, dividing the frame period to be displayed into a first time period and a second time period; based on the picture data of the frame to be displayed, generating data signals of either the first polarity or the second polarity for sub-pixels in the first sub-pixel row of the X row, and generating data signals of either the second polarity or the first polarity for sub-pixels in the second sub-pixel row of the Y row; wherein the polarity of the data signals corresponding to the sub-pixels in the first sub-pixel row of the X row is opposite to the polarity of the data signals corresponding to the sub-pixels in the second sub-pixel row of the Y row; scanning the first sub-pixel row of the X row row by row in the first time period, and outputting data signals corresponding to each sub-pixel in the first sub-pixel row to the M data lines when scanning each first sub-pixel row, thereby driving the first sub-pixel row to display a picture; and scanning the second sub-pixel row of the Y row row by row in the second time period, and outputting data signals corresponding to each sub-pixel in the second sub-pixel row to the M data lines when scanning each second sub-pixel row, thereby driving the second sub-pixel row to display a picture.

[0014] Optionally, the acquiring of the picture data of the frame to be displayed and dividing the frame period to be displayed into a first time period and a second time period include: acquiring the picture data of the frame to be displayed; determining whether the picture corresponding to the picture data of the frame to be displayed is a monochrome picture; if the picture corresponding to the picture data of the frame to be displayed is a monochrome picture, dividing the frame period to be displayed into a first time period and a second time period; if the picture corresponding to the picture data of the frame to be displayed is not a monochrome picture, generating corresponding data signals for all the sub-pixels based on the picture data of the frame to be displayed; wherein the polarities of the data signals corresponding to any two adjacent sub-pixels are opposite; and scanning the N rows of sub-pixel rows row by row, and outputting the data signals corresponding to each sub-pixel in the row of sub-pixel rows to the M data lines when scanning each sub-pixel row, so as to drive the row of sub-pixel rows to display the picture.

[0015] Optionally, dividing the frame period to be displayed into a first time period and a second time period includes: dividing the frame period to be displayed into a first time period and a second time period according to the number X of the first sub-pixel rows and the number Y of the second sub-pixel rows; wherein the duration of the first time period is proportional to the number X of the first sub-pixel rows, and the duration of the second time period is proportional to the number Y of the second sub-pixel rows.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a diagram showing the effect of an existing display panel when displaying a monochrome image;

[0018] Figure 2 for Figure 1 A partial enlarged view of the display panel shown;

[0019] Figure 3 for Figure 1 The timing diagram of some driving signals of the display panel when displaying a monochrome image is shown;

[0020] Figure 4 A schematic structural diagram of a first display panel provided in an embodiment of the present application;

[0021] Figure 5 for Figure 4 The schematic diagram of the display panel shown is when displaying a monochrome image;

[0022] Figure 6 for Figure 4 The timing diagram of some driving signals of the display panel when displaying a monochrome image is shown;

[0023] Figure 7A schematic structural diagram of a second display panel provided in an embodiment of the present application;

[0024] Figure 8 for Figure 7 The schematic diagram of the display panel shown is when displaying a monochrome image;

[0025] Figure 9 for Figure 7 The timing diagram of some driving signals of the display panel when displaying a monochrome image is shown;

[0026] Figure 10 for Figure 7 A schematic diagram of the structure of the color resistance of the sub-pixel in the display panel shown;

[0027] Figure 11 A schematic structural diagram of a third display panel provided in an embodiment of the present application;

[0028] Figure 12 A schematic structural diagram of a fourth display panel provided in an embodiment of the present application;

[0029] Figure 13 A flowchart of a method for driving a display panel provided in an embodiment of the present application;

[0030] Figure 14 for Figure 13 Detailed flowchart of step 61 in FIG.

[0031] The following are the descriptions of the reference numerals:

[0032] Display panel 100

[0033] Area 101

[0034] Scan driving circuit 10

[0035] Data driving circuit 20

[0036] Data line 21, D1, D480, D960

[0037] Scan line 11

[0038] Sub-pixel P

[0039] First color sub-pixel P1

[0040] Second color sub-pixel P2

[0041] The third color sub-pixel P3

[0042] Pixel area 110

[0043] First subpixel row 111

[0044] Second sub-pixel row 112

[0045] First color resistor s1

[0046] Second color resistor s2

[0047] The third color resistor s3

[0048] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] In addition, the terms "first", "second" etc. in the specification of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable in appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "comprise" and "have" and any of their variations are intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or that are intrinsic to these processes, methods, products or equipment.

[0051] It should be noted that, in the absence of conflict, the features in the embodiments of this application can be combined with each other.

[0052] In order to balance increasing pixel charging time and pixel aperture ratio, reducing the number of source driver chips used, and lowering manufacturing costs and power consumption, double rate driving (DRD) or triple rate driving (TRD) liquid crystal display devices have been proposed on the market. These liquid crystal display devices mainly reduce the number of data lines and source driver chips by increasing the number of scan lines.

[0053] However, existing DRD type liquid crystal display devices or TRD type liquid crystal display devices have the problem of insufficient sub-pixel charging resulting in low display quality, for example, Figure 1As shown, the existing TRD type liquid crystal display panel 100' will have COF (Chip On Film) split screen phenomenon when displaying monochrome images. After research, it was found that the reasons for the COF split screen are as follows:

[0054] Please also read Figures 1 to 3 , Figure 1 This is the existing 100' structural diagram. Figure 2 yes Figure 1 A partial enlarged view of the middle area 101. Figure 1 As shown, the display panel 100' includes a plurality of first color sub-pixels P1, a plurality of second color sub-pixels P2, and a plurality of third color sub-pixels P3. In the column direction, the sub-pixels in each column are arranged cyclically in the order of the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3, and each column of sub-pixels is electrically connected to the same data line. Among them, COF1 is electrically connected to the data line D1 to the data line D960 through the fan-out trace, and COF1 is used to output corresponding data signals to the data lines D1 to D960 respectively. Due to the impedance of the fan-out trace, the data signal needs to charge and discharge the fan-out trace when switching the potential. Therefore, the data signal received by the data line will be delayed. This phenomenon is also called RC delay distortion of the data signal. It is not difficult to understand that the longer the fan-out trace is, the more serious the RC delay distortion of the data signal will be. Figures 2 and 3 As shown in FIG, the fan-out line from data line D480 to COF1 has the shortest length. Therefore, the data signal received by data line D480 will hardly have RC delay distortion. Extending from data line D480 to both sides, the RC delay distortion of the data signals received by each data line will become more and more serious. Among them, the RC delay distortion of the data signals received by data line D1 and data line D960 is the most serious. Figure 3 As shown, when the display panel 100' displays a monochrome image, the data signal needs to repeatedly switch between different potentials. Therefore, the monochrome image is a heavily loaded image, and it is easy for the sub-pixels to be undercharged. It is not difficult to understand that the more serious the RC delay distortion of the data signal is, the shorter the charging time of the corresponding sub-pixel P will be and the lower the charging amount will be when the data signal switches between different potentials. In this case, extending from the data line D480 to both sides, as the RC delay distortion of the data signal becomes more and more serious, the sub-pixels on both sides will be undercharged. In other words, extending from the middle of the COF to both sides, the brightness of the image will become lower and lower, which will produce the following Figure 1 The COF split screen phenomenon is shown.

[0055] In order to solve the problem of COF split screen phenomenon when the existing display panel 100' displays a monochrome image, please refer to Figure 4The present application provides a display panel 100 , which includes a scan driving circuit 10 , a data driving circuit 20 , M data lines 21 , N scan lines 11 , and a plurality of sub-pixels P.

[0056] The M data lines 21 extend along the column direction, are arranged at intervals along the row direction, and are electrically connected to the data driver circuit 20. The N scan lines 11 extend along the row direction, are arranged at intervals along the column direction, and are electrically connected to the scan driver circuit 10. The M data lines 21 and the N scan lines 11 intersect to define the plurality of sub-pixels P. Each sub-pixel P is electrically connected to an adjacent data line 21 and an adjacent scan line 11. Specifically, a data line 21 is provided between any two adjacent columns of sub-pixels P. Each sub-pixel P in each row of sub-pixels P is electrically connected to the same scan line 11. The plurality of sub-pixels P include a plurality of first color sub-pixels P1, a plurality of second color sub-pixels P2, and a plurality of third color sub-pixels P3, where M ≥ 3 and N ≥ 2.

[0057] Furthermore, the N rows of sub-pixel rows include X rows of first sub-pixel rows 111 and Y rows of second sub-pixel rows 112, where X+Y=N. The first sub-pixel rows 111 are arranged in a row direction in the order of the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3, and the second sub-pixel rows 112 are arranged in a row direction in the order of the third color sub-pixel P3, the first color sub-pixel P1, and the second color sub-pixel P2, or in the order of the second color sub-pixel P2, the third color sub-pixel P3, and the first color sub-pixel P1. The sub-pixels P of the same color in each column of the sub-pixels P are electrically connected to the same adjacent data line 21, and all the sub-pixels P electrically connected to the same data line 21 have the same color.

[0058] For example, Figure 4As shown, this embodiment takes M=7 and N=8 as an example, but it cannot be regarded as a limitation of the present application. In other embodiments, M and N can be other values, for example, M=3840, N=2160, or M=1920, N=1080, or M=1280, N=720, etc. Since the first sub-pixel row 111 is arranged cyclically in the row direction in the order of the first color sub-pixel P1, the second color sub-pixel P2 and the third color sub-pixel P3, and the second sub-pixel row 112 is arranged cyclically in the row direction in the order of the third color sub-pixel P3 and the first color sub-pixel P1, the sub-pixels P of the same color in each column of the sub-pixels P are electrically connected to the same adjacent data line 21, and all sub-pixels P electrically connected to the same data line 21 have the same color, then each column of sub-pixels P includes sub-pixels of two colors, and a data line 21 is set between two adjacent columns of sub-pixels P, and the sub-pixels P of the same color contained in the two adjacent columns of sub-pixels P are all electrically connected to the data line 21. For example Figure 4 As shown, the first column of sub-pixels P includes 4 first color sub-pixels P1 and 4 third color sub-pixels P3, the second column of pixels P includes 4 first color sub-pixels P1 and 4 second color sub-pixels P2, and a second data line is set between the first column of sub-pixels P and the second column of pixels P. Then, these two columns of sub-pixels P both include first color sub-pixels P1, and the first color sub-pixels P1 in these two columns of sub-pixels P are both electrically connected to the second data line 21.

[0059] Exemplarily, the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3 can correspond one-to-one to the red sub-pixel, the green sub-pixel, and the blue sub-pixel. Of course, in other embodiments, the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3 can also be other color combinations. For example, the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3 can correspond one-to-one to the red sub-pixel, the yellow sub-pixel, and the blue sub-pixel, which is not limited here.

[0060] Exemplarily, the data driving circuit 20 may include several COFs distributed along a row direction, and each COF is electrically connected to several data lines 21 .

[0061] In this embodiment, during a frame period in which the display panel 100 displays an image, the scan driving circuit 10 is configured to progressively scan each row of sub-pixels P. When the scan driving circuit 10 scans each sub-pixel row, the data driving circuit 20 is configured to output data signals corresponding to each sub-pixel P in the sub-pixel row to the M data lines, thereby driving the sub-pixel row to display an image.

[0062] It should be noted that, since the sub-pixels P electrically connected to the same data line 21 have the same color, when the display panel 100 displays a monochrome image, the potential of the data signal output by the scanning drive circuit 10 to the same data line 21 can remain unchanged without the need to repeatedly switch between different potentials. The data signal received by the sub-pixel P does not suffer from RC delay distortion. Therefore, the COF split-screen problem will not occur when the display panel 100 is used to display a monochrome image.

[0063] For example, please refer to Figure 5 and Figure 6 When the display panel 100 displays a monochrome image of a first color, taking the second data line D2 as an example, the potential output by the data driving circuit 20 to the second data line D2 is maintained at L1. When the scan driving circuit 10 scans the sub-pixels P in each row row by row, the second data line D2 can use the data signal with the potential maintained at L1 to sequentially charge the first color sub-pixels P1 in the first and second columns. In this way, the potential of the data signal output by the data driving circuit 20 to the second data line D2 does not need to be switched. Similarly, the potential of the data signal output to the other data lines 21 does not need to be switched. Therefore, the data signals received by each data line 21 will not have RC delay distortion, thereby ensuring that each sub-pixel P can be fully charged, and further ensuring that the COF split screen problem does not occur when the display panel 100 displays a monochrome image.

[0064] However, if Figure 5 As shown, in this embodiment, when the display panel 100 displays a monochrome image, the polarities of the data signals received by the sub-pixels P in two adjacent columns are the same, which will cause shaking head patterns on the image, affecting the image quality.

[0065] Furthermore, in order to solve the problem of head shaking wrinkles when the display panel 100 in the above embodiment displays a monochrome image, please refer to Figures 7 to 9 , this application provides another display panel 100, Figure 8 The circuit structure of the display panel 100 is similar to Figure 4 The circuit structure of the display panel 100 is the same as that of the embodiment, except that: when displaying an image, the display panel 100 divides each frame period into a first period and a second period, and drives the X rows of first sub-pixel rows 111 to display an image during the first period, and drives the X rows of first sub-pixel rows 111 to display an image during the second period. In the embodiment of the present application, the first period and the second period are both consecutive periods, and the first period may be before the second period.

[0066] Specifically, each frame period during which the display panel 100 displays an image includes a first period and a second period. During the first period, the scan driving circuit 10 is configured to scan the X-row first sub-pixel row 111 row by row, and the data driving circuit 20 is configured to output data signals of either the first polarity or the second polarity to the M data lines 21, thereby driving the X-row first sub-pixel row 111 to display an image. During the second period, the scan driving circuit 10 is configured to scan the Y-row second sub-pixel row 112 row by row, and the data driving circuit 20 is configured to output data signals of either the second polarity or the first polarity to the M data lines 21, thereby driving the Y-row second sub-pixel row 112 to display an image. In the same frame period, the polarity of the data signal received by the same data line 21 during the first period is opposite to the polarity of the data signal received during the second period.

[0067] Exemplarily, the first polarity is positive, and the second polarity is negative. Figure 7 As shown, X=Y=4, the X-row first sub-pixel rows 111 are distributed in odd rows, and the Y-row second sub-pixel rows 112 are distributed in even rows. The scan driving circuit 10 is configured to scan the odd-numbered sub-pixels P row by row in the order of row 1, row 3, row 5, and row 7 during the first period, and to scan the even-numbered sub-pixels P row by row in the order of row 2, row 4, row 6, and row 8 during the second period. The data driving circuit 20 is configured to output data signals of a first polarity during the first period, and to output data signals of a second polarity during the second period.

[0068] Further, if Figures 8 and 9 As shown, when the display panel 100 displays a monochrome picture of the first color, taking the second data line D2 as an example, the potential output by the data driving circuit 20 to the second data line D2 is maintained at L1 in the first period 0 to t1, and is maintained at -L1 in the second period t1 to T.

[0069] When the scan driving circuit 10 progressively scans the first sub-pixel row 111 of the X row in a first period 0 to t1, the second data line D2 can sequentially charge the first color sub-pixels P1 in the first column using a data signal whose potential is maintained at L1. Thus, during the first period 0 to t1, the potential of the data signal output to the second data line D2 by the data driving circuit 20 does not need to be switched. When the scan driving circuit 10 progressively scans the second sub-pixel row 112 of the Y row in a second period t1 to T, the second data line D2 can sequentially charge the first color sub-pixels P1 in the second column using a data signal whose potential is maintained at -L1. Thus, during the second period t1 to T, the potential of the data signal output to the second data line D2 by the data driving circuit 20 does not need to be switched. It should be noted that, since the potential of the data signal output to the data line D2 by the scan driving circuit 10 only needs to be switched once during a frame period, the impact of the RC delay distortion caused by this potential switching on a single frame is negligible. Preferably, in some embodiments, the scan driving circuit 10 can start scanning the Y-row second sub-pixel row 112 row by row after the potential of the data signal is completely switched from L1 to -L1, thereby ensuring that the charging time of each sub-pixel P is completely unaffected.

[0070] In this way, the data signals received by each data line 21 will not experience RC delay distortion in the first time period 0 to t1 and in the second time period t1 to T, thereby ensuring that each sub-pixel P is fully charged, and further ensuring that the display panel 100 will not have COF split screen problems when displaying a monochrome image. In addition, because the polarity of the data signal output by the data driving circuit 20 in the first time period 0 to t1 is opposite to the polarity of the data signal output in the second time period t1 to T, it can be ensured that the polarity of the data signal received by the sub-pixels P of the same color on both sides of the data line 21 is opposite (for example, Figure 8 The polarity of the first color sub-pixel P1 in the first column of sub-pixels P on the left side of the data line D2 is positive, and the polarity of the first color sub-pixel P1 in the second column of sub-pixels P on the right side is negative), thereby avoiding the occurrence of shaking head wrinkles.

[0071] The display panel 100 provided herein comprises an X-row first subpixel row 111 and a Y-row second subpixel row 112. Subpixels P of the same color in each column of subpixels P are electrically connected to the same adjacent data line 21, and all subpixels P electrically connected to the same data line 21 have the same color. When displaying a monochrome image, the potential of the data signal output by the data driver circuit 20 to each data line 21 does not need to be repeatedly switched, thereby avoiding RC delay distortion of the data signal and ensuring that each subpixel P is fully charged, thereby preventing COF split screen issues. Furthermore, the display panel 100 divides each frame period into a first period and a second period, driving the X-row first subpixel row 111 for display in the first period and the Y-row second subpixel row 112 for display in the second period. Furthermore, the polarity of the data signal received by the same data line 21 in the first and second periods is opposite. This ensures that the polarity of the data signal received by the same-colored subpixels P on either side of the data line 21 is opposite, thereby preventing the occurrence of head shake lines.

[0072] Optionally, the duration of the first period is proportional to the number X of the first sub-pixel rows 111, and the duration of the second period is proportional to the number Y of the second sub-pixel rows 112. Figure 9 As shown, when X=Y, the duration of the first period is equal to the duration of the second period. In this way, the charging duration of the sub-pixels P in the first sub-pixel row 111 is ensured to be equal to the charging duration of the sub-pixels P in the second sub-pixel row 112, thereby ensuring the uniformity of the displayed image. Of course, in other embodiments, the duration of the first period may not be proportional to the number X of the first sub-pixel rows 111, and the duration of the second period may not be proportional to the number Y of the second sub-pixel rows 112.

[0073] Optionally, the number X of the first sub-pixel rows 111 is equal to the number Y of the second sub-pixel rows 112. In this way, when the display panel 100 displays a frame, the number of positive sub-pixels P is equal to the number of negative sub-pixels P, thereby maintaining a balanced voltage on the common electrode and preventing color shift.

[0074] Furthermore, each of the sub-pixels P includes a color resistor, specifically, as Figure 10As shown, each of the first color sub-pixels P1 includes a first color color resistor s1, each of the second color sub-pixels P2 includes a second color color resistor s2, and each of the third color sub-pixels P3 includes a third color color resistor s3. Optionally, the color resistors in the sub-pixels P of the same color in two adjacent columns of the sub-pixels P are connected as one. In this way, the area of the color resistor block can be increased, thereby preventing the color resistor from falling off. In an embodiment of the present application, each of the sub-pixels P includes a color resistor that can be set in the array substrate. It should be noted that each of the sub-pixels P is a conventional pixel structure, and also includes a pixel electrode (not shown in the figure), a common electrode (not shown in the figure), etc., which will not be repeated here.

[0075] Optionally, the display panel 100 includes a plurality of pixel regions 110 arranged along a column direction, each pixel region 110 including at least one first sub-pixel row 111 and at least one second sub-pixel row 112, and the sub-pixels P within each pixel region 110 are arranged in the same manner. Thus, by regularly arranging the first sub-pixel rows 111 and the second sub-pixel rows 112 in the column direction, not only can manufacturing costs be reduced, but control logic can also be simplified. Of course, in other embodiments, the first sub-pixel rows 111 and the second sub-pixel rows 112 can also be arranged irregularly in the column direction.

[0076] Furthermore, each pixel region 110 includes A adjacent rows of the first sub-pixel rows 111 and A adjacent rows of the second sub-pixel rows 112. Wherein, A≥1, preferably, 3≥A≥1. For example, Figure 4 As shown, in one embodiment, each of the pixel regions 110 includes one row of the first sub-pixel row 111 and one row of the second sub-pixel row 112. Figure 11 As shown in FIG. 1 , in another embodiment, each of the pixel regions 110 includes two adjacent rows of the first sub-pixel rows 111 and two adjacent rows of the second sub-pixel rows 112. Figure 12 As shown, in yet another embodiment, each of the pixel regions 110 includes three adjacent rows of the first sub-pixel rows 111 and three adjacent rows of the second sub-pixel rows 112 .

[0077] Optionally, the polarity of the data signal received by each sub-pixel P in the first period of the previous frame cycle is opposite to the polarity of the data signal received in the first period of the next frame cycle, and the polarity of the data signal received by each sub-pixel P in the second period of the previous frame cycle is opposite to the polarity of the data signal received in the second period of the next frame cycle. Figure 8As shown, the polarity of the data signal received by the first column sub-pixel P in the current frame is positive, and the polarity of the data signal received in the next frame is negative. In this way, polarity reversal can be achieved, thereby avoiding polarization of the liquid crystal material and causing permanent damage.

[0078] Optionally, each of the sub-pixels P has the same size, and the length of the sub-pixel P in the row direction is greater than the length in the column direction. For example, the length of the sub-pixel P in the row direction is three times the length in the column direction. In this way, a TRD-type liquid crystal display device can be formed, thereby reducing the number of COFs, that is, reducing the number of data driver chips, and reducing manufacturing costs and power consumption.

[0079] Based on the same inventive concept, please refer to Figure 13 The present application also provides a method for driving a display panel, which is used to drive the display panel 100 for display.

[0080] In which, the display panel 100 includes M data lines 21 extending along the column direction, N scan lines 11 extending along the row direction, and a number of sub-pixels P defined by the intersection of the M data lines 21 and the N scan lines 11, each of the sub-pixels P is electrically connected to one of the data lines 21 and one of the scan lines 11, and the several sub-pixels P include several first color sub-pixels P1, several second color sub-pixels P2, and several third color sub-pixels P3, M≥3, N≥2.

[0081] The N rows of sub-pixel rows include an X-row first sub-pixel row 111 and a Y-row second sub-pixel row 112, where X+Y=N; wherein the first sub-pixel row 111 is arranged cyclically in the order of the first color sub-pixel P1, the second color sub-pixel P2, and the third color sub-pixel P3 in the row direction, and the second sub-pixel row 112 is arranged cyclically in the order of the third color sub-pixel P3, the first color sub-pixel P1, and the second color sub-pixel P2 or in the order of the second color sub-pixel P2, the third color sub-pixel P3, and the first color sub-pixel P1 in the row direction; the sub-pixels P of the same color in each column of the sub-pixels P are electrically connected to the same data line 21 of the two adjacent data lines 21, and the sub-pixels P electrically connected to the same data line 21 have the same color.

[0082] Specifically, the driving method includes:

[0083] Step 61 : Acquire the picture data of the frame to be displayed, and divide the period of the frame to be displayed into a first time period and a second time period.

[0084] Step 62: Based on the image data of the frame to be displayed, data signals of either the first polarity or the second polarity are generated for the sub-pixels P in the first sub-pixel row 111 of the X row, and data signals of either the second polarity or the first polarity are generated for the sub-pixels P in the second sub-pixel row 112 of the Y row. The polarity of the data signals corresponding to the sub-pixels P in the first sub-pixel row 111 of the X row is opposite to the polarity of the data signals corresponding to the sub-pixels P in the second sub-pixel row 112 of the Y row.

[0085] Step 63 , in the first time period, scan the X rows of first sub-pixel rows 111 row by row, and when scanning each first sub-pixel row 111 , output data signals corresponding to the sub-pixels P in the row of first sub-pixel rows 111 to the M data lines 21 to drive the row of first sub-pixel rows 111 to display an image.

[0086] Step 64, in the second time period, scan the Y-row second sub-pixel row 112 row by row, and when scanning each second sub-pixel row 112, output the data signal corresponding to each sub-pixel P in the row of second sub-pixel row 112 to the M data lines 21 to drive the row of second sub-pixel row 112 to display the picture.

[0087] The display panel driving method provided herein divides each frame period into a first period and a second period. During the first period, the first subpixel row 111 in row X is driven to display, and during the second period, the second subpixel row 112 in row Y is driven to display. This eliminates the need for repeated switching of the potential of the data signal output by the data driver circuit 20 to each data line 21, thereby avoiding RC delay distortion of the data signal. This ensures that each subpixel P is sufficiently charged, thus preventing the display panel 100 from displaying a monochrome image due to COF splitting. Furthermore, by ensuring that the polarity of the data signal received by the same data line 21 in the first and second periods is opposite, the polarity of the data signal received by the subpixels P of the same color on either side of the data line 21 is opposite, thereby preventing the occurrence of head shake lines.

[0088] Further, see Figure 14 , the step 61 specifically includes:

[0089] Step 611: Acquire the picture data of the frame to be displayed.

[0090] Step 612: Determine whether the image data corresponding to the frame to be displayed is a monochrome image. If the image data corresponding to the frame to be displayed is a monochrome image, proceed to step 613. After step 613, proceed to step 62. If the image data corresponding to the frame to be displayed is not a monochrome image, proceed to step 614.

[0091] Step 613: Divide the frame period to be displayed into a first time period and a second time period.

[0092] Step 614 : Generate corresponding data signals for all the sub-pixels P based on the picture data of the frame to be displayed; wherein the polarities of the data signals corresponding to any two adjacent sub-pixels P are opposite.

[0093] Step 615 , scanning the N sub-pixel rows row by row, and outputting data signals corresponding to the sub-pixels P in each sub-pixel row to the M data lines 21 when scanning each sub-pixel row, so as to drive the sub-pixel row to display a picture.

[0094] It should be noted that the COF split screen phenomenon is easily perceived by the user's naked eye when the display panel 100 displays a monochrome image, but is not noticeable to the user when the display panel 100 displays a multi-color image. In this embodiment, when the image data of the frame to be displayed corresponds to an image that is not a monochrome image, the display panel 100 is driven by an existing driving method for display, which can simplify the control logic.

[0095] Furthermore, step 613 includes dividing the frame period to be displayed into a first time period and a second time period according to the number X of the first sub-pixel rows 111 and the number Y of the second sub-pixel rows 112. The duration of the first time period is proportional to the number X of the first sub-pixel rows 111, and the duration of the second time period is proportional to the number Y of the second sub-pixel rows 112.

[0096] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A display panel comprising a scan driver circuit, a data driver circuit, M data lines extending in a column direction and electrically connected to the data driver circuit, N scan lines extending in a row direction and electrically connected to the scan driver circuit, and a plurality of sub-pixels defined by the intersection of the M data lines and the N scan lines, each sub-pixel being electrically connected to an adjacent data line and an adjacent scan line, the plurality of sub-pixels including a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels, M ≥ 3, N ≥ 2, characterized in that: The N rows of sub-pixel rows include X rows of first sub-pixel rows and Y rows of second sub-pixel rows, where X+Y=N; wherein the first sub-pixel rows are arranged cyclically in the order of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel in the row direction, and the second sub-pixel rows are arranged cyclically in the order of the third color sub-pixel, the first color sub-pixel, and the second color sub-pixel, or in the order of the second color sub-pixel, the third color sub-pixel, and the first color sub-pixel in the row direction; the sub-pixels of the same color in each column of the sub-pixels are electrically connected to the same adjacent data line, and all sub-pixels electrically connected to the same data line have the same color; Each frame period during which the display panel displays an image includes a first period and a second period. During the first period, the scan driving circuit is used to scan the X-row first sub-pixel row row by row, and the data driving circuit is used to output data signals of either the first polarity or the second polarity to the M data lines, so as to drive the X-row first sub-pixel row to display an image. During the second period, the scan driving circuit is used to scan the Y-row second sub-pixel row row by row, and the data driving circuit is used to output data signals of either the second polarity or the first polarity to the M data lines, so as to drive the Y-row second sub-pixel row to display an image. In the same frame period, the polarity of the data signal received by the same data line in the first period is opposite to the polarity of the data signal received in the second period.

2. The display panel according to claim 1, wherein The duration of the first period is proportional to the number X of the first sub-pixel rows, and the duration of the second period is proportional to the number Y of the second sub-pixel rows.

3. The display panel according to claim 2, wherein: The number X of the first sub-pixel rows is equal to the number Y of the second sub-pixel rows.

4. The display panel according to claim 1, wherein: The display panel includes a plurality of pixel regions arranged along a column direction, each of the pixel regions includes at least one row of the first sub-pixel row and at least one row of the second sub-pixel row, and the sub-pixels in each of the pixel regions are arranged in the same manner.

5. The display panel according to claim 4, wherein: Each of the pixel regions includes A adjacent rows of the first sub-pixel rows and A adjacent rows of the second sub-pixel rows; wherein A≥1.

6. The display panel according to claim 1, wherein: The polarity of the data signal received by each sub-pixel in the first time period in the previous frame cycle is opposite to the polarity of the data signal received in the first time period in the next frame cycle, and the polarity of the data signal received by each sub-pixel in the second time period in the previous frame cycle is opposite to the polarity of the data signal received in the second time period in the next frame cycle.

7. The display panel according to any one of claims 1 to 6, wherein: Each of the first color sub-pixels includes a first color resist, each of the second color sub-pixels includes a second color resist, each of the third color sub-pixels includes a third color resist, and the color resists in the sub-pixels of the same color in two adjacent columns of sub-pixels are connected as one.

8. A method for driving a display panel, the display panel comprising M data lines extending in a column direction, N scan lines extending in a row direction, and a plurality of sub-pixels defined by the intersection of the M data lines and the N scan lines, each sub-pixel being electrically connected to an adjacent data line and an adjacent scan line, the plurality of sub-pixels comprising a plurality of first color sub-pixels, a plurality of second color sub-pixels, and a plurality of third color sub-pixels, M ≥ 3, N ≥ 2, characterized in that: The N rows of sub-pixel rows include X rows of first sub-pixel rows and Y rows of second sub-pixel rows, where X+Y=N; wherein the first sub-pixel rows are arranged cyclically in the order of the first color sub-pixel, the second color sub-pixel, and the third color sub-pixel in the row direction, and the second sub-pixel rows are arranged cyclically in the order of the third color sub-pixel, the first color sub-pixel, and the second color sub-pixel, or in the order of the second color sub-pixel, the third color sub-pixel, and the first color sub-pixel in the row direction; the sub-pixels of the same color in each column of the sub-pixels are electrically connected to the same data line of the two adjacent data lines, and the sub-pixels electrically connected to the same data line have the same color; The driving method includes: Acquire picture data of a frame to be displayed, and divide a period of the frame to be displayed into a first time period and a second time period; Based on the picture data of the frame to be displayed, generating data signals of the first polarity or the second polarity for the sub-pixels in the first sub-pixel row of the X row, and generating data signals of the second polarity or the first polarity for the sub-pixels in the second sub-pixel row of the Y row; wherein the polarity of the data signals corresponding to the sub-pixels in the first sub-pixel row of the X row is opposite to the polarity of the data signals corresponding to the sub-pixels in the second sub-pixel row of the Y row; In the first period, scanning the X rows of first sub-pixel rows row by row, and outputting data signals corresponding to the sub-pixels in each row of the first sub-pixel row to the M data lines when scanning each row of the first sub-pixel row, so as to drive the row of the first sub-pixel row to display an image; and In the second period, the Y rows of second sub-pixel rows are scanned row by row, and when scanning each second sub-pixel row, data signals corresponding to each sub-pixel in the row of second sub-pixel rows are output to the M data lines to drive the row of second sub-pixel rows to display a picture.

9. The method for driving a display panel according to claim 8, wherein: The step of obtaining the picture data of the frame to be displayed and dividing the frame period to be displayed into a first time period and a second time period includes: Get the picture data of the frame to be displayed; Determine whether the picture corresponding to the picture data of the frame to be displayed is a monochrome picture; If the picture corresponding to the picture data of the frame to be displayed is a monochrome picture, the frame period to be displayed is divided into a first time period and a second time period; If the picture corresponding to the picture data of the frame to be displayed is not a monochrome picture, generating corresponding data signals for all the sub-pixels based on the picture data of the frame to be displayed; wherein the polarities of the data signals corresponding to any two adjacent sub-pixels are opposite; and The N sub-pixel rows are scanned row by row, and when scanning each sub-pixel row, data signals corresponding to the sub-pixels in the row are output to the M data lines to drive the sub-pixel row to display a picture.

10. The method for driving a display panel according to claim 8, wherein: The step of dividing the frame period to be displayed into a first time period and a second time period comprises: According to the row number X of the first sub-pixel rows and the row number Y of the second sub-pixel rows, the frame period to be displayed is divided into a first time period and a second time period; wherein the duration of the first time period is proportional to the row number X of the first sub-pixel rows, and the duration of the second time period is proportional to the row number Y of the second sub-pixel rows.

Images