Display panel driving method, driver chip, and display device

Abstract

The present application discloses a display panel driving method, a driver chip, and a display device. The display panel driving method comprises: on the basis of the current image frame, determining the overall variations of data signals corresponding to a first sub-pixel column in sub-regions; if an overall variation is greater than a preset threshold, controlling a first transistor and a second transistor corresponding to the corresponding sub-region to be alternately turned on; and if the overall variation is less than or equal to the preset threshold, controlling the first transistor and the second transistor corresponding to the corresponding sub-region to be simultaneously turned on. According to embodiments of the present application, the use performance of a display product can be improved.

Description

Display panel driving method, driving chip and display device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Chinese patent application No. 202311028731.2, filed on August 14, 2023, entitled “Driving method, driving chip and display device for display panel”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of display technology, and in particular to a driving method, a driving chip and a display device for a display panel. Background Art

[0004] Organic Light Emitting Display (OLED) and flat-panel display devices based on technologies such as Light Emitting Diode (LED) have been widely used in various consumer electronic products such as mobile phones, televisions, laptops, and desktop computers due to their advantages such as high image quality, power saving, thin body, and wide range of applications, becoming the mainstream display device.

[0005] However, the performance of current display products needs to be improved.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a display panel driving method, a driving chip, and a display device, which help to improve the performance of display products.

[0008] In a first aspect, an embodiment of the present application provides a method for driving a display panel, wherein the display panel includes a display area, the display area includes a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns including a first sub-pixel column, the first sub-pixel column including first sub-pixels and second sub-pixels alternately arranged in a second direction, the first sub-pixel being electrically connected to a first electrode of a first transistor via a first data line, the second sub-pixel being electrically connected to a first electrode of a second transistor via a second data line, and the second electrode of the first transistor and the second electrode of the second transistor being electrically connected to the same data signal terminal; the display area includes a plurality of sub-areas arranged along the second direction, the sub-areas including a plurality of rows of sub-pixels;

[0009] Methods include:

[0010] Determine, based on the current frame image, an overall variation of the data signal corresponding to the first sub-pixel column in the sub-region, where the overall variation includes variations of the data signals of every two adjacent sub-pixels in the sub-region of the first sub-pixel column;

[0011] If the overall change is greater than the preset threshold, the first transistor and the second transistor corresponding to the control sub-area are alternately turned on; if the overall change is less than or equal to the preset threshold, the first transistor and the second transistor corresponding to the control sub-area are turned on simultaneously.

[0012] Based on the same concept, in a second aspect, embodiments of the present application provide a driver chip for driving a display panel, the display panel comprising a display area, the display area comprising a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns comprising a first sub-pixel column, the first sub-pixel column comprising first sub-pixels and second sub-pixels alternately arranged in a second direction, the first sub-pixel being electrically connected to a first electrode of a first transistor via a first data line, the second sub-pixel being electrically connected to a first electrode of a second transistor via a second data line, the second electrode of the first transistor and the second electrode of the second transistor being electrically connected to the same data signal terminal; the display area comprising a plurality of sub-areas arranged along the second direction, the sub-areas comprising a plurality of rows of sub-pixels;

[0013] The driver chip includes:

[0014] a change determination module, configured to determine, based on the current frame image, an overall change in the data signal corresponding to the first sub-pixel column in the sub-region, the overall change including a change in the data signal of every two adjacent sub-pixels in the sub-region of the first sub-pixel column;

[0015] The drive control module is used to control the first transistor and the second transistor corresponding to the sub-area to be alternately turned on if the overall change is greater than a preset threshold; and to control the first transistor and the second transistor corresponding to the sub-area to be turned on simultaneously if the overall change is less than or equal to the preset threshold.

[0016] Based on the same concept, in a third aspect, an embodiment of the present application provides a display device, including:

[0017] The display panel includes a display area, the display area includes a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns include a first sub-pixel column, the first sub-pixel column includes first sub-pixels and second sub-pixels alternately arranged in a second direction, the first sub-pixel is electrically connected to a first electrode of a first transistor via a first data line, the second sub-pixel is electrically connected to a first electrode of a second transistor via a second data line, and the second electrode of the first transistor and the second electrode of the second transistor are electrically connected to the same data signal terminal; the display area includes a plurality of sub-areas arranged along a second direction, the sub-areas including a plurality of rows of sub-pixels;

[0018] A driver chip is used to determine, based on a current frame image, an overall change in a data signal corresponding to a first sub-pixel column in a sub-region, where the overall change includes a change in a data signal of every two adjacent sub-pixels of the first sub-pixel column in the sub-region; if the overall change is greater than a preset threshold, control the first transistor and the second transistor corresponding to the sub-region to be alternately turned on; and if the overall change is less than or equal to the preset threshold, control the first transistor and the second transistor corresponding to the sub-region to be turned on simultaneously.

[0019] According to the driving method, driving chip and display device of the display panel provided by the embodiments of the present application, when the overall change of the data signal corresponding to the first sub-pixel column in the sub-region is greater than the preset threshold value, the overall change of the data signal is large. In this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be alternately turned on, so that the data signal terminal only needs to provide the data signal to one of the first sub-pixel and the second sub-pixel at the same time, which can reduce the power consumption caused by frequent signal switching; and when the overall change of the data signal corresponding to the first sub-pixel column in the sub-region is less than or equal to the preset threshold value, in this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be turned on at the same time, and the switching of the first transistor and the second transistor on and off can be stopped to reduce power consumption, thereby helping to improve the performance of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features and the accompanying drawings are not drawn to scale.

[0021] FIG1 is a schematic structural diagram of a display panel in a method for driving a display panel provided in an embodiment of the present application;

[0022] FIG2 shows a schematic structural diagram of a multiplexer circuit in a display panel driving method provided by an embodiment of the present application;

[0023] FIG3 is a schematic flow chart showing a method for driving a display panel according to an embodiment of the present application;

[0024] FIG4 shows a timing diagram of a method for driving a display panel according to an embodiment of the present application;

[0025] FIG5 is a schematic diagram showing an equivalent capacitance of a data line in a display panel driving method provided by an embodiment of the present application;

[0026] FIG6 is a schematic diagram showing another flow chart of a method for driving a display panel provided in an embodiment of the present application;

[0027] FIG7 is a schematic diagram showing another flow chart of a method for driving a display panel provided in an embodiment of the present application;

[0028] FIG8 is a schematic diagram showing another flow chart of a method for driving a display panel provided in an embodiment of the present application;

[0029] FIG9 is a schematic diagram showing a display scenario in a method for driving a display panel provided in an embodiment of the present application;

[0030] FIG10 is a schematic diagram showing another display scenario in the display panel driving method provided in an embodiment of the present application;

[0031] FIG11 is a schematic diagram showing a circuit structure of a sub-pixel in a method for driving a display panel provided in an embodiment of the present application;

[0032] FIG12 is a schematic diagram showing another flow chart of a method for driving a display panel according to an embodiment of the present application;

[0033] FIG13 shows another structural schematic diagram of a display panel in a display panel driving method provided in an embodiment of the present application;

[0034] FIG14 shows a schematic structural diagram of a driver chip provided in an embodiment of the present application;

[0035] FIG15 shows another schematic structural diagram of a driver chip provided in an embodiment of the present application;

[0036] FIG16 shows a schematic structural diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0037] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or device comprising the elements.

[0039] Embodiments of the present application provide a display panel driving method, a driving chip, and a display device. The following describes various embodiments of the display panel driving method, the driving chip, and the display device in conjunction with the accompanying drawings.

[0040] Before introducing the driving method of the display panel, the structure of the display panel is first introduced.

[0041] As shown in Figures 1 and 2, the display panel 100 may include a display area AA, the display area AA includes a plurality of sub-pixel columns 10 arranged along a first direction X, the plurality of sub-pixel columns 10 may include a first sub-pixel column 11, and the first sub-pixel column 11 may include first sub-pixels 111 and second sub-pixels 112 alternately arranged in a second direction Y.

[0042] The first direction X and the second direction Y intersect, the first direction X may be a row direction, and the second direction Y may be a column direction.

[0043] The first sub-pixel 111 is electrically connected to the first electrode of the first transistor M1 through the first data line 21, the second sub-pixel 112 is electrically connected to the first electrode of the second transistor M2 through the second data line 22, and the second electrodes of the first transistor M1 and the second transistor M2 are electrically connected to the same data signal terminal S.

[0044] The first transistor M1 and the second transistor M2 electrically connected to the same first sub-pixel column 11 may constitute a gate circuit SW. The gate of the first transistor M1 may be connected to the first control signal A1, and the gate of the second transistor M2 may be connected to the second control signal A2.

[0045] The data signal terminal S may be used to provide a data signal. When the transistor connected to the data line is turned on, the data signal may be transmitted to the sub-pixel through the transistor and the data line.

[0046] The first sub-pixel 111 and the second sub-pixel 112 in the same first sub-pixel column 11 are electrically connected to the same data signal terminal S, which is required to provide data signals required by the first sub-pixel 111 and the second sub-pixel 112 .

[0047] For example, the display area AA may include n columns of sub-pixels, the number of the data signal terminals S may be n, and the n data signal terminals are S1 to Sn respectively.

[0048] The display area AA includes a plurality of sub-areas 01 arranged along the second direction Y. Each sub-area 01 includes a plurality of rows of sub-pixels. For example, a sub-area 01 may include M rows of sub-pixels, where M ≥ 2 and M is an integer. The number of sub-pixel rows included in each sub-area 01 may be the same or different.

[0049] For example, display area AA may include n rows of sub-pixels, namely Line 1 to Line n. Sub-area 01 may include three rows of sub-pixels. For example, the first sub-area 01-1 includes Line 1 to Line 3 sub-pixels, the second sub-area 01-2 includes Line 4 to Line 6 sub-pixels, and so on. The multiple rows of sub-pixels in the first sub-pixel column 11 are divided into different sub-areas 01.

[0050] For at least one sub-area, as shown in FIG. 3 , the driving method of the display panel may include S31 to S32 .

[0051] S31, determining an overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region according to the current frame image, where the overall change amount includes a change amount of the data signal of every two adjacent sub-pixels in the sub-region of the first sub-pixel column;

[0052] S32, if the overall change is greater than a preset threshold, the first transistor and the second transistor corresponding to the control sub-area are alternately turned on; if the overall change is less than or equal to the preset threshold, the first transistor and the second transistor corresponding to the control sub-area are simultaneously turned on.

[0053] The specific implementation of each of the above steps will be described in detail below.

[0054] According to the driving method provided in an embodiment of the present application, when the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region is greater than a preset threshold value, the overall change amount of the data signal is large. In this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be alternately turned on, so that the data signal terminal only needs to provide the data signal to one of the first sub-pixel and the second sub-pixel at the same time, which can reduce the power consumption caused by frequent signal switching; and when the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region is less than or equal to the preset threshold value, in this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be turned on at the same time, and the switching of the first transistor and the second transistor between on and off can be stopped to reduce power consumption, thereby helping to improve the performance of the display panel.

[0055] For example, as shown in FIG4 , the overall change in the data signal corresponding to the first sub-pixel column in the sub-region 01 - 1 is small. When the data signal is transmitted to the sub-region 01 - 1 , the first control signal A1 and the second control signal A2 can both be at the on-level to control the first transistor M1 and the second transistor M2 to be turned on at the same time.

[0056] The overall change in the data signal corresponding to the first sub-pixel column in the sub-region 01-2 is relatively large. When transmitting the data signal to the sub-region 01-2, the first control signal A1 and the second control signal A2 can be pulse signals with alternating on-level and off-level to control the first transistor M1 and the second transistor M2 to be alternately turned on.

[0057] It should be noted that FIG2 exemplarily shows that the first transistor M1 and the second transistor M2 are N-type transistors. For N-type transistors, their on-level is a high level VGH, and their off-level is a low level VGL. The first transistor M1 and the second transistor M2 may also be P-type transistors. For P-type transistors, their on-level is a low level VGL, and their off-level is a high level VGH.

[0058] For example, as shown in FIG5 , the first data line 21 is electrically connected to the first sub-pixel 111 in the first column of the first sub-pixel column 11, and the parasitic capacitance of the first data line 21 is equivalent to C1_1. The second data line 22 is electrically connected to the second sub-pixel 112 in the first column of the first sub-pixel column 11, and the parasitic capacitance of the second data line 22 is equivalent to C1_2. The equivalent capacitances of the data lines electrically connected to the sub-pixel columns of other columns are shown in FIG5 , and are not described in detail here.

[0059] As shown in Figures 4 and 5, taking the second sub-pixel 112 of Line 4, the first sub-pixel 111 of Line 5, and the second sub-pixel 112 of Line 6 in the first column electrically connected to the data signal terminal S1 as an example, the overall change in the data signals of the second sub-pixel 112 of Line 4, the first sub-pixel 111 of Line 5, and the second sub-pixel 112 of Line 6 is relatively large, which can control the first transistor and the second transistor to be alternately turned on.

[0060] During the display of the current frame, when a data signal needs to be transmitted to Line 4, the first control signal A1 is at a high level VGH, the second control signal A2 is at a low level VGL, the first transistor M1 is turned on, and the second transistor M2 is turned off; at this time, the data signal terminal S1 is connected to the second data line 22, and the data signal terminal S1 is disconnected from the first data line 21; at this time, the data signal terminal S1 and the second data line 22 output a voltage value VB corresponding to the second sub-pixel 112.

[0061] When a data signal needs to be transmitted to Line 5, the first control signal A1 is at a low level VGL, the second control signal A2 is at a high level VGH, the first transistor M1 is turned off, and the second transistor M2 is turned on; at this time, the data signal terminal S1 is connected to the first data line 21, and the data signal terminal S1 is disconnected from the second data line 22; at this time, the data signal terminal S1 outputs a voltage value VR corresponding to the first sub-pixel 111.

[0062] That is, the first data line 21 only outputs the voltage value VR to the first sub-pixel 111 , and the second data line 22 only outputs the voltage value VB to the second sub-pixel 112 .

[0063] The power consumption formula of the square wave signal charging the fixed capacitor C is P = CfΔV 2 / 2, where C is the capacitance, f is the frequency of voltage jump, and ΔV is the voltage change.

[0064] Taking the sub-area 01-2 displaying a pure color image as an example, for example, displaying a red image, the first sub-pixel 111 is a red sub-pixel R, and the second sub-pixel 112 is a blue sub-pixel B. The data signal of the second sub-pixel 112 needs to be a black state voltage, which has a large voltage difference from the data signal of the first sub-pixel 111. When the first transistor and the second transistor are alternately turned on, the capacitor C1_1 can only perform level conversion for the first sub-pixel 111, and the capacitor C1_2 can only perform level conversion for the second sub-pixel 112. In this way, the frequency f and the voltage change ΔV can be reduced, thereby helping to reduce power consumption.

[0065] The specific implementation methods of the above steps are introduced below.

[0066] First, let me introduce S31.

[0067] In some optional embodiments, as shown in FIG6 , S31 may include S311 and S312 .

[0068] S311, determining an overall grayscale change corresponding to the first sub-pixel column in the sub-region based on the current frame image, where the overall grayscale change includes grayscale changes between every two adjacent sub-pixels in the sub-region of the first sub-pixel column;

[0069] S312 , taking the overall change amount of the grayscale as the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region.

[0070] During the image display process, the current frame image can be obtained to determine the grayscale that each sub-pixel in the display panel needs to display. Then, based on the grayscale that each sub-pixel needs to display, the data voltage corresponding to the data signal of each sub-pixel is generated, thereby driving each sub-pixel to emit light and display. The greater the difference between different grayscales, the greater the difference between the data voltages corresponding to different grayscales. Therefore, the overall change between grayscales can be used as the overall change between data voltages, that is, the overall change between grayscales can be used as the overall change between data signals. Compared with calculating the overall change between data voltages, directly using the overall change between grayscales as the overall change between data signals can help improve driving efficiency.

[0071] For example, in S311, the grayscale of each sub-pixel of the display panel can be obtained according to the current frame image, thereby determining the grayscale of each sub-pixel of the first sub-pixel column in the sub-area and determining the overall change in the grayscale corresponding to the first sub-pixel column in the sub-area.

[0072] Exemplarily, the grayscale variation includes the grayscale variation of every two adjacent subpixels in the first subpixel column in the subregion. When the subregion includes M rows of subpixels, the first subpixel column in the subregion corresponds to M-1 grayscale variations.

[0073] Exemplarily, the grayscale variation includes an absolute value of a grayscale difference between every two adjacent sub-pixels in the sub-region of the first sub-pixel column.

[0074] For example, the first sub-area 01 includes three rows of sub-pixels, such as the i-th row of sub-pixels, the i+1-th row of sub-pixels, and the i+2-th row of sub-pixels. In the same first sub-pixel column, the grayscale difference between the i-th row of sub-pixels and the i+1-th row of sub-pixels is one grayscale change, and the grayscale difference between the i+1-th row of sub-pixels and the i+2-th row of sub-pixels is another grayscale change. The first sub-pixel column corresponds to 2 grayscale changes in the sub-area.

[0075] For example, the grayscale of the sub-pixels in the i-th row of the first sub-pixel column in the sub-area is 15, the grayscale of the sub-pixels in the i+1-th row is 10, the grayscale of the sub-pixels in the i+2-th row is 20, the grayscale change between the sub-pixels in the i-th row and the sub-pixels in the i+1-th row is 5 grayscales, and the grayscale change between the sub-pixels in the i+1-th row and the sub-pixels in the i+2-th row is 10 grayscales.

[0076] For example, when the overall change amount of the grayscale is used as the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region, the preset threshold in S32 may include a preset grayscale threshold.

[0077] In some optional embodiments, the preset grayscale threshold includes a first grayscale threshold. As shown in FIG. 7 , the method may further include S41 .

[0078] S41, if each of the M-1 grayscale changes is greater than the first grayscale threshold, it is determined that the overall change is greater than the preset threshold; if at least one of the M-1 grayscale changes is less than or equal to the first grayscale threshold, it is determined that the overall change is less than or equal to the preset threshold.

[0079] The grayscale variation of the first subpixel column within the subregion is determined by comparing each grayscale variation of the first subpixel column within the subregion with a first grayscale threshold. If each grayscale variation of the first subpixel column within the subregion is greater than the first grayscale threshold, it can be determined that the data signal of the first subpixel column within the subregion needs to undergo a significant change, that is, the data signal of the first subpixel column within the subregion needs to undergo a continuous change. In this case, the first transistor and the second transistor are controlled to be alternately conductive, thereby reducing the voltage switching frequency and / or voltage jump amount on the first data line and the second data line, thereby reducing power consumption. If at least one grayscale variation of the first subpixel column within the subregion is less than or equal to the first grayscale threshold, it can be determined that the data signal of the first subpixel column within the subregion does not need to undergo a significant change, that is, the data signal of the first subpixel column within the subregion does not need to undergo a continuous change. In this case, the first transistor and the second transistor are controlled to be conductive simultaneously, thereby reducing the frequent switching of the conductive states of the first and second transistors, thereby reducing power consumption.

[0080] The first grayscale threshold is greater than 0 and less than the maximum grayscale of the display panel. Taking an 8-bit display as an example, grayscale 255 is the maximum grayscale. In addition, grayscales are generally integers. Therefore, the first grayscale threshold is an integer, greater than or equal to 1 and less than or equal to 254.

[0081] The first grayscale threshold needs to be greater than 0, otherwise the grayscale variation cannot be reflected; in addition, the first grayscale threshold needs to be less than the maximum grayscale, otherwise the function of the strobe module cannot be triggered.

[0082] Exemplarily, the first grayscale threshold includes 6 grayscales.

[0083] Exemplarily, the same sub-area may include M rows of sub-pixels of j first sub-pixel columns, where j≥2, j is an integer, and the gates of the first transistors of the gating circuit electrically connected to the j first sub-pixel columns are all connected to the first control signal, and the gates of the second transistors of the gating circuit electrically connected to the j first sub-pixel columns are all connected to the second control signal.

[0084] The number of grayscale changes of j first sub-pixel columns in the same sub-region is j*(M-1).

[0085] S41 may include: if each of the j*(M-1) grayscale changes is greater than the first grayscale threshold, then determining that the overall change of the sub-area is greater than the preset threshold; if at least one of the j*(M-1) grayscale changes is less than or equal to the first grayscale threshold, then determining that the overall change of the sub-area is less than or equal to the preset threshold.

[0086] Alternatively, S41 may include: if the number of j*(M-1) grayscale changes that is greater than the first grayscale threshold is greater than or equal to j*(M-1) / 2, then determining that the overall change of the sub-area is greater than the preset threshold; if the number of j*(M-1) grayscale changes that is less than or equal to the first grayscale threshold is less than j*(M-1) / 2, then determining that the overall change of the sub-area is less than or equal to the preset threshold.

[0087] As shown in FIG4 , the display panel includes n / 2 first subpixel columns 11, and the first sub-area 01 may include subpixels in Line 1, Line 2, and Line 3 of the n / 2 first subpixel columns 11. The n / 2 first subpixel columns 11 are electrically connected to n / 2 gating circuits SW in a one-to-one correspondence. The gates of the first transistors in the n / 2 gating circuits SW can be connected to the same first control signal A1, and the gates of the second transistors in the n / 2 gating circuits SW can be connected to the same second control signal A2.

[0088] In some other optional embodiments, the preset grayscale threshold includes a second grayscale threshold, as shown in FIG8 , and the method may further include S42 .

[0089] S42, if the average of the M-1 grayscale variations is greater than the second grayscale threshold, determine that the overall variation is greater than the preset threshold; if the average of the M-1 grayscale variations is less than or equal to the second grayscale threshold, determine that the overall variation is less than or equal to the preset threshold.

[0090] The grayscale variation of the first subpixel column within the subregion is determined by comparing the average grayscale variation of the first subpixel column within the subregion with a second grayscale threshold. If the average grayscale variation of the first subpixel column within the subregion is greater than the second grayscale threshold, it can be determined that the data signal of the first subpixel column within the subregion needs to undergo a significant change, that is, the data signal of the first subpixel column within the subregion needs to undergo a continuous change. In this case, the first transistor and the second transistor are controlled to be alternately turned on, thereby reducing the voltage switching frequency and / or voltage jump amount on the first data line and the second data line, thereby reducing power consumption. If the average grayscale variation of the first subpixel column within the subregion is less than or equal to the second grayscale threshold, it can be determined that the data signal of the first subpixel column within the subregion does not need to undergo a significant change, that is, the data signal of the first subpixel column within the subregion does not need to undergo a continuous change. In this case, the first transistor and the second transistor are controlled to be turned on simultaneously, thereby reducing the frequent switching of the conduction states of the first transistor and the second transistor, thereby reducing power consumption.

[0091] The second grayscale threshold is greater than 1 and less than the maximum grayscale of the display panel. Still using an 8-bit display as an example, grayscale 255 is the maximum grayscale. Furthermore, grayscales are typically integers. Therefore, the second grayscale threshold is an integer, and the first grayscale threshold is greater than or equal to 2 and less than or equal to 254. The second grayscale threshold must be greater than the first grayscale threshold; furthermore, the second grayscale threshold must be less than the maximum grayscale, otherwise the module's function cannot be triggered.

[0092] Exemplarily, the second grayscale threshold includes 9 grayscales.

[0093] Exemplarily, the same sub-area may include M rows of sub-pixels of j first sub-pixel columns, where j≥2, j is an integer, and the gates of the first transistors of the gating circuit electrically connected to the j first sub-pixel columns are all connected to the first control signal, and the gates of the second transistors of the gating circuit electrically connected to the j first sub-pixel columns are all connected to the second control signal.

[0094] The number of grayscale changes of j first sub-pixel columns in the same sub-region is j*(M-1).

[0095] S322 may include: if the average of j*(M-1) grayscale changes is greater than the second grayscale threshold, then determining that the overall change of the sub-area is greater than the preset threshold; if the average of j*(M-1) grayscale changes is less than or equal to the second grayscale threshold, then determining that the overall change of the sub-area is less than or equal to the preset threshold.

[0096] In some optional embodiments, as shown in Figure 9 or Figure 10, the multiple sub-areas 01 of the display panel may include a first sub-area Q1 operating in the first mode and a second sub-area Q2 operating in the second mode, and the data refresh frequency of the first sub-area Q1 is different from the data refresh frequency of the second sub-area Q2.

[0097] For example, the first sub-area Q1 can be used to play movies in the first mode, and the second sub-area Q2 can be used to display text information in the second mode. In this case, the data refresh frequencies of the first sub-area Q1 and the second sub-area Q2 can be different to achieve different functions.

[0098] For example, as shown in FIG11 , the sub-pixels of the display panel include a pixel circuit and a light-emitting element. The light-emitting element may be an organic light-emitting diode (OLED). The pixel circuit may include transistors T1 to T7 and a storage capacitor Cst. S1, S2, and S3 are scan signals, VDD and VSS are power signals, EM is a light-emitting control signal, Vref1 and Vref2 are initialization signals, and Data is a data signal. The data refresh frequency may be the frequency at which the data signal Data is written to the gate of the drive transistor T1.

[0099] In the case where the display panel is capable of displaying data at different data refresh frequencies, the threshold may include a first preset threshold and a second preset threshold.

[0100] As shown in FIG. 12 , S31 may include S313 , and S32 may include S323 .

[0101] S313, determining a first overall change amount of the data signal corresponding to the first sub-pixel column in the first sub-region and a second overall change amount of the data signal corresponding to the first sub-pixel column in the second sub-region according to the current frame image;

[0102] S323, if the first overall change is greater than the first preset threshold, the first transistor and the second transistor corresponding to the first sub-area are controlled to be turned on alternately; if the first overall change is less than or equal to the first threshold, the first transistor and the second transistor corresponding to the first sub-area are controlled to be turned on simultaneously; if the second overall change is greater than the second preset threshold, the first transistor and the second transistor corresponding to the second area are controlled to be turned on alternately; if the second overall change is less than or equal to the second preset threshold, the first transistor and the second transistor corresponding to the second sub-area are controlled to be turned on simultaneously.

[0103] When the display panel is capable of displaying at different data refresh frequencies, different thresholds are set to correspond to regions with different data refresh frequencies, which is beneficial for controlling the states of the first transistor and the second transistor according to the display requirements of different regions.

[0104] Exemplarily, S313 may include: determining, based on the current frame image, a first overall change in the grayscale corresponding to the first sub-pixel column in the first sub-area, and a second overall change in the grayscale corresponding to the first sub-pixel column in the second sub-area; using the first overall change in the grayscale as the first overall change in the data signal corresponding to the first sub-pixel column in the first sub-area, and using the second overall change in the grayscale as the second overall change in the data signal corresponding to the first sub-pixel column in the second sub-area.

[0105] The first overall grayscale variation includes the grayscale variation of every two adjacent subpixels in the first subpixel column in the first subregion, and the second overall grayscale variation includes the grayscale variation of every two adjacent subpixels in the first subpixel column in the second subregion.

[0106] When the first sub-area includes k1 rows of sub-pixels and the second sub-area includes k2 rows of sub-pixels, k1≥2, k2≥2, and k1 and k2 are integers, the first sub-pixel column in the first sub-area corresponds to k1-1 first grayscale changes, and the first sub-pixel column in the second sub-area corresponds to k2-1 second grayscale changes.

[0107] In some optional embodiments, the data refresh frequency of the first sub-area is greater than the data refresh frequency of the second sub-area, and the first preset threshold is less than the second preset threshold.

[0108] According to the power consumption formula P=CfΔV 2 / 2, it can be seen that a higher data refresh frequency results in higher power consumption. A higher data refresh rate makes it easier for the selective conduction function of the gating module SW to be triggered, which is more conducive to reducing power consumption. The selective conduction function of the gating module SW includes: the first transistor and the second transistor are alternately turned on.

[0109] As an example, the first preset threshold may include a first sub-grayscale threshold, the second preset threshold may include a second sub-grayscale threshold, the data refresh frequency of the first sub-area is greater than the data refresh frequency of the second sub-area, and the first sub-grayscale threshold is less than the second sub-grayscale threshold.

[0110] S323 may include: if each of the k1-1 first grayscale changes is greater than the first sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the first sub-area to be turned on alternately; if at least one of the k1-1 first grayscale changes is less than or equal to the first sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the first sub-area to be turned on simultaneously; and, if each of the k2-1 second grayscale changes is greater than the second sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the second sub-area to be turned on alternately; if at least one of the k2-1 second grayscale changes is less than or equal to the second sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the second sub-area to be turned on simultaneously.

[0111] Exemplarily, the first sub-grayscale threshold includes 6 grayscales, and the second sub-grayscale threshold includes 9 grayscales.

[0112] As another example, the first threshold may include a third sub-grayscale threshold, the second threshold may include a fourth sub-grayscale threshold, the data refresh frequency of the first sub-area is less than the data refresh frequency of the second sub-area, and the third sub-grayscale threshold is greater than the fourth sub-grayscale threshold.

[0113] S323 may include: if the average of k1-1 first grayscale changes is greater than the third sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the first sub-area to be turned on alternately; if the average of k1-1 first grayscale changes is less than or equal to the first sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the first sub-area to be turned on simultaneously; and if the average of k2-1 second grayscale changes is greater than the fourth sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the second sub-area to be turned on alternately; if the average of k2-1 second grayscale changes is less than or equal to the fourth sub-grayscale threshold, then controlling the first transistor and the second transistor corresponding to the second sub-area to be turned on simultaneously.

[0114] Exemplarily, the third sub-grayscale threshold includes 8 grayscales, and the fourth sub-grayscale threshold includes 12 grayscales.

[0115] In some optional embodiments, as shown in FIG9 , during the same time period, some of the multiple sub-areas 01 are first sub-areas, and another portion of the multiple sub-areas 01 are second sub-areas Q2. For example, two sub-areas 01 are first sub-areas Q1, and the other two sub-areas 01 are second sub-areas Q2. In other words, the display panel can display frequency by area.

[0116] In some other optional embodiments, the operation process of the display panel includes a first period and a second period, the first mode is the first period, and the second mode is the second period. The first period and the second period do not overlap.

[0117] As shown in FIG10 , for example, in the first time period, each sub-area 01 is the first sub-area Q1 , and in the second time period, each sub-area 01 is the second sub-area Q2 . In other words, the display panel can display in time-division and frequency-division modes.

[0118] 1 , the display panel may further include a second subpixel column 12, which may include a third subpixel 113. The third subpixel 113 may be electrically connected to the data signal terminal S via a third data line 23. The third subpixel 113 may be a green subpixel G.

[0119] As another example, as shown in FIG13 , the third data line 23 includes a first sub-data line 231 and a second sub-data line 232. Among the plurality of third sub-pixels 113 in the same column, the third sub-pixels 113 in odd-numbered rows are electrically connected to the first sub-data line 231, and the third sub-pixels 113 in even-numbered rows are electrically connected to the second sub-data line 232. The structure of the gating circuit SW connected to the second sub-pixel column 12 may be as shown in FIG2 , where the first sub-data line 231 is electrically connected to the first transistor M1 in the gating circuit SW, and the second sub-data line 232 is electrically connected to the second transistor M2 in the gating circuit SW.

[0120] The control method of the first transistor and the second transistor electrically connected to the second sub-pixel column 12 may refer to the control method of the first transistor and the second transistor electrically connected to the first sub-pixel column 11 in the above embodiment, and will not be described in detail here.

[0121] Based on the same concept, an embodiment of the present application also provides a driver chip. The driver chip can be used to drive a display panel. As described above, the display panel includes a display area, the display area includes a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns include a first sub-pixel column, the first sub-pixel column includes a first sub-pixel and a second sub-pixel alternately arranged in a second direction, the first sub-pixel is electrically connected to the first electrode of the first transistor through a first data line, the second sub-pixel is electrically connected to the first electrode of the second transistor through a second data line, and the second electrode of the first transistor and the second electrode of the second transistor are electrically connected to the same data signal terminal; the display area includes a plurality of sub-areas arranged along the second direction, and the sub-areas include a plurality of rows of sub-pixels.

[0122] As shown in FIG. 14 , the driver chip 400 includes a change determination module 401 and a drive control module 402 .

[0123] a change determination module 401 for determining, based on a current frame image, an overall change in the data signal corresponding to the first sub-pixel column within the sub-region, where the overall change includes a change in the data signal of every two adjacent sub-pixels within the sub-region of the first sub-pixel column;

[0124] The drive control module 402 is used to control the first transistor and the second transistor corresponding to the sub-area to be alternately turned on if the overall change is greater than the preset threshold; and to control the first transistor and the second transistor corresponding to the sub-area to be turned on simultaneously if the overall change is less than or equal to the preset threshold.

[0125] According to the driver chip provided in the embodiment of the present application, when the overall change in the data signal corresponding to the first sub-pixel column in the sub-region is greater than a preset threshold value, the change in the data signal is large. In this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be alternately turned on, so that the data signal terminal only needs to provide the data signal to one of the first sub-pixel and the second sub-pixel at the same time, which can reduce the power consumption caused by frequent signal switching; and when the overall change in the data signal corresponding to the first sub-pixel column in the sub-region is less than or equal to the preset threshold value, in this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be turned on at the same time, and the switching of the first transistor and the second transistor between on and off can be stopped to reduce power consumption, thereby helping to improve the performance of the display panel.

[0126] In some optional embodiments, the change determination module 401 may be configured to:

[0127] Determine, based on the current frame image, an overall grayscale change corresponding to the first sub-pixel column in the sub-region, where the overall grayscale change includes grayscale changes of every two adjacent sub-pixels in the sub-region of the first sub-pixel column;

[0128] Taking the grayscale state change as the corresponding data signal change in the first sub-pixel column sub-region;

[0129] Preferably, the preset threshold value includes a preset grayscale threshold value;

[0130] Preferably, the sub-area includes M rows of sub-pixels, M≥2, and M is an integer, and the overall grayscale variation includes M-1 grayscale variations;

[0131] Preferably, the grayscale variation includes the absolute value of the grayscale difference between every two adjacent sub-pixels in the sub-region of the first sub-pixel column.

[0132] In some optional embodiments, the preset grayscale threshold includes a first grayscale threshold, and the driving control module 402 may be further configured to:

[0133] If each of the M-1 grayscale changes is greater than the first grayscale threshold, it is determined that the overall change is greater than the preset threshold;

[0134] If at least one of the M-1 grayscale variations is less than or equal to the first grayscale threshold, determining that the overall variation is less than or equal to the preset threshold;

[0135] Preferably, the first grayscale threshold includes 6 grayscales.

[0136] In some optional embodiments, the preset grayscale threshold includes a second grayscale threshold, and the driving control module 402 may be further configured to:

[0137] If the average of the M-1 grayscale changes is greater than the second grayscale threshold, it is determined that the overall change is greater than the preset threshold;

[0138] If the average of the M-1 grayscale changes is less than or equal to the second grayscale threshold, then it is determined that the overall change is less than or equal to the preset threshold;

[0139] Preferably, the second grayscale threshold includes 9 grayscales.

[0140] In some optional embodiments, the plurality of sub-areas include a first sub-area operating in the first mode and a second sub-area operating in the second mode, a data refresh frequency of the first sub-area and a data refresh frequency of the second sub-area are different, and the preset threshold includes a first preset threshold and a second preset threshold;

[0141] The change determination module 401 may be used to:

[0142] Determine, based on the current frame image, a first overall change amount of the data signal corresponding to the first sub-pixel column in the first sub-region, and a second overall change amount of the data signal corresponding to the first sub-pixel column in the second sub-region;

[0143] The drive control module 402 may be used to:

[0144] If the first overall change is greater than a first preset threshold, controlling the first transistor and the second transistor corresponding to the first sub-region to be alternately turned on;

[0145] If the first overall change is less than or equal to a first preset threshold, controlling the first transistor and the second transistor corresponding to the first sub-region to be turned on simultaneously;

[0146] If the second overall change is greater than a second preset threshold, controlling the first transistor and the second transistor corresponding to the second sub-region to be alternately turned on;

[0147] If the second overall variation is less than or equal to the second preset threshold, the first transistor and the second transistor corresponding to the second sub-region are controlled to be turned on simultaneously.

[0148] In some optional embodiments, the data refresh frequency of the first sub-area is greater than the data refresh frequency of the second sub-area, and the first preset threshold is less than the second preset threshold.

[0149] In some optional embodiments, in the same time period, part of the multiple sub-areas is the first sub-area, and another part of the multiple sub-areas is the second sub-area.

[0150] In some optional embodiments, the operation process of the display panel includes a first period and a second period, the first mode is the first period, and the second mode is the second period.

[0151] The driver chip provided in the embodiment of the present application can implement each process in the embodiment of the display panel driving method described in Figure 3. To avoid repetition, they are not described here.

[0152] For example, FIG15 shows a schematic diagram of the hardware structure of the driver chip provided in an embodiment of the present application.

[0153] The driver chip may include a processor 1501 and a memory 1502 storing computer program instructions.

[0154] Specifically, the processor 1501 may include a central processing unit (CPU), or an application-specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0155] Memory 1502 may include a large-capacity memory for data or instructions. By way of example and not limitation, memory 1502 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive, or a combination of two or more of these. Where appropriate, memory 1502 may include removable or non-removable (or fixed) media. Where appropriate, memory 1502 may be inside or outside the integrated gateway disaster recovery device. In a specific embodiment, memory 1502 is a non-volatile solid-state memory. In a specific embodiment, memory 1502 includes a read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or a flash memory, or a combination of two or more of these. Exemplarily, memory may include a non-volatile transient memory.

[0156] The processor 1501 reads and executes computer program instructions stored in the memory 1502 to implement any one of the display panel driving methods in the above embodiments.

[0157] In one example, the driver chip may further include a communication interface 1503 and a bus 1510. As shown in FIG15 , the processor 1501, the memory 1502, and the communication interface 1503 are connected via the bus 1510 and communicate with each other.

[0158] The communication interface 1503 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0159] Bus 1510 comprises hardware, software or both, couples the parts of electronic equipment to each other.For example, and not limitation, bus can comprise accelerated graphics port (AGP) or other graphics bus, enhanced industry standard architecture (EISA) bus, front side bus (FSB), hypertransport (HT) interconnection, industry standard architecture (ISA) bus, infinite bandwidth interconnection, low pin count (LPC) bus, memory bus, micro channel architecture (MCA) bus, peripheral component interconnection (PCI) bus, PCI-Express (PCI-X) bus, serial advanced technology attachment (SATA) bus, video electronics standard association local (VLB) bus or other suitable bus or two or more of these combinations.In suitable cases, bus 1510 can comprise one or more buses.Although the present application embodiment describes and shows specific bus, the application considers any suitable bus or interconnection.

[0160] Based on the same concept, an embodiment of the present application further provides a display device. As shown in FIG16 , the display device 1000 may include a display panel 100 and a driver chip 400 .

[0161] The display panel includes a display area, the display area includes a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns include a first sub-pixel column, the first sub-pixel column includes first sub-pixels and second sub-pixels alternately arranged in a second direction, the first sub-pixel is electrically connected to a first electrode of a first transistor via a first data line, the second sub-pixel is electrically connected to a first electrode of a second transistor via a second data line, and the second electrode of the first transistor and the second electrode of the second transistor are electrically connected to the same data signal terminal; the display area includes a plurality of sub-areas arranged along a second direction, the sub-areas including a plurality of rows of sub-pixels;

[0162] The driver chip is used to determine the overall change in the data signal corresponding to the first sub-pixel column in the sub-area based on the current frame image; if the overall change is greater than a preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be alternately turned on; and if the overall change is less than or equal to the preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be turned on simultaneously.

[0163] According to the display device provided by the embodiment of the present application, when the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region is greater than a preset threshold value, the overall change amount of the data signal is large. In this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be alternately turned on, so that the data signal terminal only needs to provide the data signal to one of the first sub-pixel and the second sub-pixel at the same time, which can reduce the power consumption caused by frequent signal switching; and when the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region is less than or equal to the preset threshold value, in this case, the first transistor and the second transistor corresponding to the sub-region are controlled to be turned on at the same time, and the switching of the first transistor and the second transistor between on and off can be stopped to reduce power consumption, thereby helping to improve the performance of the display device.

[0164] The present application also provides a computer-readable storage medium having a computer program stored thereon. When executed by a processor, the computer program can implement the display panel driving method described in the above-described embodiment and achieve the same technical effects. To avoid repetition, the details are omitted here. The computer-readable storage medium may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, etc., without limitation herein.

[0165] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or communication link via a data signal carried in a carrier wave. "Computer-readable medium" can include any medium capable of storing or transmitting information. Examples of computer-readable media include electronic circuits, semiconductor memory devices, ROMs, flash memories, erasable ROMs (EROMs), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0166] According to an embodiment of the present application, the computer-readable storage medium may be a non-transitory computer-readable storage medium.

[0167] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps. In other words, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0168] Aspects of the present application have been described above with reference to the flowcharts and / or block diagrams of the methods, devices (systems) and computer program products according to the embodiments of the present application. It should be understood that each box in the flowchart and / or block diagram and the combination of each box in the flowchart and / or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer or other programmable data processing device to produce a machine so that these instructions executed via the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. This processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor or a field programmable logic circuit. It is also understood that each box in the block diagram and / or the flowchart and the combination of the boxes in the block diagram and / or the flowchart can also be implemented by the dedicated hardware that performs the specified function or action, or can be implemented by the combination of dedicated hardware and computer instructions.

[0169] While the embodiments described above are not exhaustive, they do not limit the present application to the specific embodiments described. Clearly, numerous modifications and variations are possible based on the above description. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present application, thereby enabling those skilled in the art to better utilize the present application and its modifications. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A method for driving a display panel, the display panel comprising a display area, the display area comprising a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns comprising a first sub-pixel column, the first sub-pixel column comprising first sub-pixels and second sub-pixels alternately arranged in a second direction, the first direction and the second direction intersect, the first sub-pixel is electrically connected to a first electrode of a first transistor through a first data line, the second sub-pixel is electrically connected to a first electrode of a second transistor through a second data line, and the second electrode of the first transistor and the second electrode of the second transistor are electrically connected to the same data signal terminal; The display area includes a plurality of sub-areas arranged along the second direction, and the sub-areas include a plurality of rows of sub-pixels; The method comprises: Determine, according to the current frame image, an overall change amount of the data signal corresponding to the first sub-pixel column in the sub-region, wherein the overall change amount includes a change amount of the data signal of every two adjacent sub-pixels of the first sub-pixel column in the sub-region; If the overall change is greater than a preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be turned on alternately; if the overall change is less than or equal to the preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be turned on.

2. The method according to claim 1, wherein: The determining, according to the current frame image, an overall change amount of the data signal corresponding to the first sub-pixel column in the sub-area includes: Determine, according to the current frame image, an overall change amount of the grayscale corresponding to the first sub-pixel column in the sub-region, wherein the overall change amount of the grayscale includes the grayscale change amount of every two adjacent sub-pixels of the first sub-pixel column in the sub-region; The overall change amount of the gray scale is used as the overall change amount of the data signal corresponding to the first sub-pixel column in the sub-area.

3. The method according to claim 2, wherein: The preset threshold includes a preset grayscale threshold.

4. The method according to claim 2, wherein: The sub-area includes M rows of sub-pixels, M≥2, and M is an integer, and the overall grayscale variation includes M-1 grayscale variations.

5. The method according to claim 4, wherein: The grayscale variation includes an absolute value of a grayscale difference between every two adjacent sub-pixels in the first sub-pixel column in the sub-area.

6. The method according to claim 4, wherein: The preset grayscale threshold includes a first grayscale threshold, and the method further includes: If each of the M-1 grayscale changes is greater than the first grayscale threshold, determining that the overall change is greater than a preset threshold; If at least one of the M-1 grayscale variation amounts is less than or equal to the first grayscale threshold, it is determined that the overall variation amount is less than or equal to the preset threshold.

7. The method according to claim 6, wherein: The first grayscale threshold is greater than 0 and less than the maximum grayscale of the display panel.

8. The method according to claim 4, wherein: The same sub-area includes j rows of sub-pixels of the first sub-pixel columns, j≥2, j is an integer, If each of the j*(M-1) grayscale changes is greater than the first grayscale threshold, it is determined that the overall change of the sub-area is greater than the preset threshold; if at least one of the j*(M-1) grayscale changes is less than or equal to the first grayscale threshold, it is determined that the overall change of the sub-area is less than or equal to the preset threshold.

9. The method according to claim 4, wherein: The same sub-area includes j rows of sub-pixels of the first sub-pixel columns, j≥2, j is an integer, If the number of j*(M-1) grayscale changes that are greater than the first grayscale threshold is greater than or equal to j*(M-1) / 2, it is determined that the overall change of the sub-area is greater than the preset threshold; if the number of j*(M-1) grayscale changes that are less than or equal to the first grayscale threshold is less than j*(M-1) / 2, it is determined that the overall change of the sub-area is less than or equal to the preset threshold.

10. The method according to claim 4, wherein: The method further comprises: The preset grayscale threshold includes a second grayscale threshold, and if the average of the M-1 grayscale changes is greater than the second grayscale threshold, it is determined that the overall change is greater than the preset threshold; If the average of the M-1 grayscale changes is less than or equal to the second grayscale threshold, it is determined that the overall change is less than or equal to the preset threshold.

11. The method according to claim 10, wherein: The second grayscale threshold is greater than 1 and less than the maximum grayscale of the display panel.

12. The method according to claim 4, wherein: The same sub-area includes j rows of sub-pixels of the first sub-pixel columns, j≥2, j is an integer, If the average of j*(M-1) grayscale changes is greater than the second grayscale threshold, it is determined that the overall change of the sub-area is greater than the preset threshold; if the average of j*(M-1) grayscale changes is less than or equal to the second grayscale threshold, it is determined that the overall change of the sub-area is less than or equal to the preset threshold.

13. The method according to claim 1, wherein: The multiple sub-areas include a first sub-area operating in a first mode and a second sub-area operating in a second mode, a data refresh frequency of the first sub-area in the first mode is different from a data refresh frequency of the second sub-area in the second mode, and the preset threshold includes a first preset threshold and a second preset threshold; The determining, according to the current frame image, an overall change amount of the data signal corresponding to the first sub-pixel column in the sub-area includes: Determine, according to the current frame image, a first overall change amount of the data signal corresponding to the first sub-pixel column in the first sub-region, and a second overall change amount of the data signal corresponding to the first sub-pixel column in the second sub-region; If the overall change is greater than the preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be turned on alternately; if the overall change is less than or equal to the preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be turned on simultaneously, including: If the first overall change is greater than the first preset threshold, controlling the first transistor and the second transistor corresponding to the first sub-area to be alternately turned on; If the first overall change is less than or equal to the first preset threshold, controlling the first transistor and the second transistor corresponding to the first sub-region to be turned on at the same time; If the second overall change is greater than the second preset threshold, controlling the first transistor and the second transistor corresponding to the second sub-area to be alternately turned on; If the second overall change is less than or equal to the second preset threshold, the first transistor and the second transistor corresponding to the second sub-area are controlled to be turned on at the same time.

14. The method according to claim 13, wherein: A data refresh frequency of the first sub-area is greater than a data refresh frequency of the second sub-area, and the first preset threshold is less than the second preset threshold.

15. The method according to claim 13, wherein: In the same time period, part of the multiple sub-areas is the first sub-area, and another part of the multiple sub-areas is the second sub-area.

16. The method according to claim 13, wherein: The working process of the display panel includes a first period and a second period, the first mode is the first period, and the second mode is the second period.

17. The method according to claim 7 or 11, wherein: The maximum grayscale is 255 grayscales.

18. A driver chip for driving a display panel, the display panel comprising a display area, the display area comprising a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns comprising a first sub-pixel column, the first sub-pixel column comprising first sub-pixels and second sub-pixels alternately arranged in a second direction, the first direction and the second direction intersect, the first sub-pixel is electrically connected to a first electrode of a first transistor through a first data line, the second sub-pixel is electrically connected to a first electrode of a second transistor through a second data line, and the second electrode of the first transistor and the second electrode of the second transistor are electrically connected to the same data signal terminal; The display area includes a plurality of sub-areas arranged along the second direction, and the sub-areas include a plurality of rows of sub-pixels; The driver chip comprises: a change determination module, configured to determine, according to a current frame image, an overall change amount of a data signal corresponding to the first sub-pixel column in the sub-region, wherein the overall change amount includes a change amount of a data signal of every two adjacent sub-pixels of the first sub-pixel column in the sub-region; A drive control module is used to control the first transistor and the second transistor corresponding to the sub-area to be alternately turned on if the overall change is greater than a preset threshold; and to control the first transistor and the second transistor corresponding to the sub-area to be turned on simultaneously if the overall change is less than or equal to the preset threshold.

19. A display device comprising: A display panel, the display panel comprising a display area, the display area comprising a plurality of sub-pixel columns arranged along a first direction, the plurality of sub-pixel columns comprising a first sub-pixel column, the first sub-pixel column comprising first sub-pixels and second sub-pixels alternately arranged in a second direction, the first direction and the second direction intersecting, the first sub-pixel being electrically connected to a first electrode of a first transistor through a first data line, the second sub-pixel being electrically connected to a first electrode of a second transistor through a second data line, The second electrode of the first transistor and the second electrode of the second transistor are electrically connected to the same data signal terminal; the display area includes a plurality of sub-areas arranged along the second direction, and the sub-areas include a plurality of rows of sub-pixels; A driving chip, configured to determine, according to a current frame image, an overall change amount of a data signal corresponding to the first sub-pixel column in the sub-region, wherein the overall change amount includes a change amount of a data signal of every two adjacent sub-pixels of the first sub-pixel column in the sub-region; if the overall change amount is greater than a preset threshold, control the first transistor and the second transistor corresponding to the sub-region to be alternately turned on; And, if the overall change is less than or equal to the preset threshold, the first transistor and the second transistor corresponding to the sub-area are controlled to be turned on at the same time.

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