Source signal processing method and display screen

Abstract

The application discloses a source signal processing method and a display screen; the method comprises the following steps: charging a first source signal to a first data line group by using a first electrical parameter; the first data line group comprises at least one first data line, each first data line corresponds to a column of pixel units, and the pixel units corresponding to the first data line group form a first pixel unit set; charging the first source signal to the first data line group by using a second electrical parameter; the charging efficiency of charging the first source signal to the first data line group by using the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group by using the second electrical parameter; and the pixel units in the column of pixel units corresponding to each first data line obtain the first source signal by charging the first source signal to the first data line group by using the first electrical parameter and charging the first source signal to the first data line group by using the second electrical parameter.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of data display, and particularly relates to a source signal processing method and a display screen. BACKGROUND

[0002] In order to reduce the cost of a display device, a related technology realizes the data refresh operation of two column pixel units of a display screen by a single pin of a display driving integrated circuit (IC) through cooperation of a low-fan-out display driving IC and a two-way demultiplexer. However, in the implementation process of the above scheme, in order to guarantee the data refresh effect, sufficient refresh time needs to be allocated for the data refresh operation of the two column pixel units of the display screen performed by the demultiplexer in turn. Therefore, in the case of insufficient refresh time, the data refresh requirement of the display screen cannot be met. SUMMARY

[0003] Based on the above technical problems, the embodiments of the present application provide a source signal processing method and a display screen.

[0004] The technical scheme provided by the embodiments of the present application is as follows:

[0005] The embodiments of the present application first provide a source signal processing method, and the method comprises the following steps:

[0006] charging the first source signal to the first data line group by a first electrical parameter; the first data line group comprises at least one first data line, each first data line corresponds to one column of pixel units, and the pixel units corresponding to the first data line group constitute a first pixel unit set;

[0007] charging the first source signal to the first data line group by a second electrical parameter;

[0008] wherein the charging efficiency of charging the first source signal to the first data line group by the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group by the second electrical parameter; by charging the first source signal to the first data line group by the first electrical parameter and charging the first source signal to the first data line group by the second electrical parameter, the pixel units in the one column of pixel units corresponding to each first data line can obtain the first source signal.

[0009] The embodiments of the present application further provide a display screen, which comprises:

[0010] a pixel array comprising a plurality of pixel units;

[0011] a data line; wherein each data line corresponds to one column of pixel units in the pixel array;

[0012] a controller configured to:

[0013] charge the first source signal to the first data line group with the first electrical parameter; the first data line group comprises at least one first data line; the data line comprises the first data line;

[0014] charge the first source signal to the first data line group with the second electrical parameter;

[0015] wherein the charging efficiency of charging the first source signal to the first data line group with the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group with the second electrical parameter;

[0016] obtaining the first source signal by charging the first source signal to the first data line group with the first electrical parameter and charging the first source signal to the first data line group with the second electrical parameter, so that each first data line corresponds to a pixel unit in a column of pixel units. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 a flowchart of a source signal processing method provided by an embodiment of the present application;

[0018] Figure 2 a circuit structure schematic diagram between a pixel array and a demultiplexer and a row control unit provided by an embodiment of the present application;

[0019] Figure 3 a timing structure diagram of pixel unit refreshing provided by an embodiment of the present application;

[0020] Figure 4 a variation schematic diagram of a charging rate curve in the related art;

[0021] Figure 5 a variation schematic diagram of a charging rate curve provided by an embodiment of the present application;

[0022] Figure 6 a structure schematic diagram of a display screen provided by an embodiment of the present application;

[0023] Figure 7 another structure schematic diagram of a display screen provided by an embodiment of the present application;

[0024] Figure 8 a structure schematic diagram of a display screen provided by an embodiment of the present application; Figure 7 another structure schematic diagram of a corresponding display screen;

[0025] Figure 9 a circuit structure schematic diagram between a demultiplexer and a controller provided by an embodiment of the present application. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0027] It should be understood that the specific embodiments described herein are merely used to explain the present application and not to limit the present application.

[0028] In order to reduce the hardware cost of the display device, the related technology realizes the single-pin control of the display driving IC on the data refresh operation of the two column pixel units of the display screen by the low-fan-out display driving IC and the two-way demultiplexer. However, in the implementation process of the above scheme, in order to guarantee the data refresh effect, the display screen needs to be allocated sufficient refresh time for the data refresh operation of the two column pixel units performed by the demultiplexer in sequence, but in the case of sufficient refresh time, the high resolution and high refresh rate data refresh requirements of the display screen cannot be met.

[0029] At the same time, in order to shorten the refresh time, it may affect the data refresh effect of the display screen, for example, for an organic light-emitting diode (OLED), in the process of the display driving IC and the low-cost demultiplexer performing data refresh operation, it is easy to appear that due to insufficient charging time during data refresh, the normal display data is caused, so that the display screen cannot meet the refresh requirements of high resolution and high refresh rate.

[0030] Based on the above problems, the present application provides a source signal processing method and a display screen.

[0031] The source signal processing method provided by the present application can be realized by the display control unit of the display screen; for example, the above display control unit can include display driving IC and demultiplexer, etc.; for example, the demultiplexer can include demux.

[0032] Figure 1 The flowchart of the source signal processing method provided by the present application is shown in Figure 1 As shown in the figure, the flowchart can include the following steps:

[0033] Step 101, charge the first source signal to the first data line group with the first electrical parameter.

[0034] The first data line group includes at least one first data line, and each first data line corresponds to a column of pixel units. The pixel units corresponding to the first data line group constitute a first pixel unit set.

[0035] In one embodiment, the first data line can be used to transmit the first source signal to each column of pixel units in the first pixel unit set.

[0036] In an embodiment, the number of the first data lines in the first data line group can be the same as the number of the demultiplexing switches in a demultiplexer corresponding to a fan-out area in a display driving IC of the display screen for outputting a source signal.

[0037] In an embodiment, the column of pixel units corresponding to each of the first data lines can include a column of pixel units of the display screen, and the column of pixel units can include a set of pixel units corresponding to a single column scan of the display screen.

[0038] In an embodiment, the number of the column of pixel units corresponding to each of the first data lines can be associated with the resolution of the display screen.

[0039] In an embodiment, the first source signal can include an electrical signal representation of pixel data to be displayed by at least part of the pixel units in the first set of pixel units at a current time; for example, the signal amplitudes of different first source signals can be different; for example, the signal amplitudes can include voltage amplitudes or absolute values of the voltage amplitudes.

[0040] In an embodiment, the first electrical parameter can include an amplitude parameter and / or a gradient change parameter when the first source signal is charged to the first data line group; for example, the absolute value of the amplitude represented by the amplitude parameter can be greater than the absolute value of the voltage of the first source signal; for example, the gradient change parameter can represent the relative change state of the first source signal between at least one time period or at least two time points.

[0041] In an embodiment, the display driving IC of the display screen can determine the first electrical parameter in the following manner:

[0042] obtaining a first intensity parameter and a first historical intensity parameter of the first source signal, and determining the first electrical parameter based on the first intensity parameter and the first historical intensity parameter.

[0043] wherein the first historical intensity parameter includes the intensity of a neighboring historical source signal of the first source signal.

[0044] For example, the first intensity parameter can include an amplitude parameter of the first source signal determined by a central processing unit (CPU) or a graphics processing unit (GPU) of the electronic device; the neighboring historical source signal can include a source signal output by the CPU or the GPU of the electronic device at a neighboring historical time point when the first source signal is output at a current time point.

[0045] In an embodiment, the first historical intensity parameter can represent an absolute value of a magnitude of a historical source signal adjacent to the first source signal, or can represent a historical second electrical parameter of a data line adjacent to the first data line group and earlier than the first source signal in the column refresh operation.

[0046] In an embodiment, determining the first electrical parameter based on the first intensity parameter and the first historical intensity parameter can be implemented by the following manner:

[0047] determining a difference between the first intensity parameter and the first historical intensity parameter, and then determining a weighted statistical result between the first historical intensity parameter and the difference as the first electrical parameter; for example, the first electrical parameter can be calculated by formula (1):

[0048]

[0049] wherein v(n) and s(n-1) are the first electrical parameter and the first historical intensity parameter respectively; s(n) is the first intensity parameter of the first source signal; Δv is the difference between the first intensity parameter and the first historical intensity parameter; and α is a weight coefficient for weighting the difference.

[0050] For example, the value of α can be determined according to the power transmission characteristics of the first data line group, and in the embodiment of the present application, α can take a value of 1.15.

[0051] For example, according to formula (1), it can be seen that the first electrical parameter is associated with α, Δv and s(n-1); and since Δv and s(n-1) are associated with the historical charging process of the first data line group, by adjusting the value of α, the flexible adjustment of v(n) can be realized.

[0052] In an embodiment, charging the first source signal to the first data line with the first electrical parameter can be implemented by the following manner:

[0053] The first data line is electrically connected with a display driving IC of the display screen and the first data line group, so that when the display driving IC determines the first source signal, the first electrical parameter can be determined at the same time, and the first source signal can be charged to the first data line based on the first electrical parameter.

[0054] Step 102, charging the first source signal to the first data line group with the second electrical parameter.

[0055] The charging efficiency of charging the first source signal to the first data line group by the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group by the second electrical parameter; the first source signal is charged to the first data line group by the first electrical parameter and the first source signal is charged to the first data line group by the second electrical parameter, so that each first data line corresponds to a pixel unit in a column of pixel units to obtain the first source signal.

[0056] In an embodiment, the second electrical parameter can be different from the intensity represented by the first electrical parameter; for example, the second electrical parameter can be different from the absolute value of the amplitude represented by the first electrical parameter.

[0057] In an embodiment, the charging efficiency of charging the first source signal to the first data line group by the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group by the second electrical parameter, which can include at least one of the following:

[0058] The charging time of charging the first source signal to the first data line group by the first electrical parameter is shorter than the charging time of charging the first source signal to the first data line group by the second electrical parameter; for example, when the first source signal is charged to the first data line group by the first electrical parameter, the first time period required for the signal amplitude in the first data line group to change from the initial amplitude to be greater than or equal to the preset threshold can be less than the second time period required for the signal amplitude in the first data line group to change from the initial amplitude to be greater than or equal to the preset threshold when the first source signal is charged to the first data line group by the second electrical parameter.

[0059] The charging speed of charging the first source signal to the first data line group by the first electrical parameter is faster than the charging speed of charging the first source signal to the first data line group by the second electrical parameter; accordingly, the first time period can also be less than the second time period under the above conditions.

[0060] In an embodiment, the charging efficiency of charging the first source signal to the first data line group by the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group by the second electrical parameter, which can represent that the absolute value of the amplitude of the first source signal represented by the first electrical parameter in at least one time period is greater than the absolute value of the amplitude of the first source signal represented by the second electrical parameter in at least one time period; in this way, by charging the first source signal to the first data line group by the first electrical parameter, the first source signal can be charged to the first data line in a shorter time, while by charging the first source signal to the first data line group by the second electrical parameter, the first data line can be continuously powered, so as to maintain the continuous effectiveness of the first source data in the column of pixel units corresponding to the first data line.

[0061] In an embodiment, the second electrical parameter can include an amplitude parameter and / or a gradient variation parameter of the first source signal when the first source signal is charged to the first data line group; for example, the amplitude parameter can include an intensity of the first source signal, wherein the intensity can include an absolute value of a voltage amplitude of the first source signal; for example, the gradient variation parameter can represent a relative variation state of the first source signal between at least one time period or at least two time instants.

[0062] In an embodiment, charging the first source signal to the first data line with the second electrical parameter can be achieved by:

[0063] The first data line is electrically connected to a display driving IC of the display screen and the first data line group, so that when the display driving IC charges the first source signal to the first data line group with the first electrical parameter, the second electrical parameter can be determined at the same time, and the first source signal can be transmitted to the first data line based on the second electrical parameter.

[0064] In an embodiment, by charging the first source signal to the first data line group with the first electrical parameter and charging the first source signal to the first data line group with the second electrical parameter, the pixel units in each column of pixel units corresponding to each first data line can obtain the first source signal, which can include:

[0065] Charging the first source signal to the first data line group with the first electrical parameter so that the absolute value of the amplitude of the first source signal in the first data line group can be greater than or equal to a preset threshold value within a first time period, and then by continuing to charge the first source signal to the first data line group with the second electrical parameter, the absolute value of the amplitude of the first source signal in the first data line group can be maintained in a state of being greater than or equal to the preset threshold value, so that when any row of pixel units in the first pixel unit set corresponding to the first data line group is selected, i.e., the display screen performs a row scanning operation, the any row of pixel units can stably obtain the first source signal maintained in the first data line group, thereby ensuring the data refresh effect of each pixel unit and improving the display effect of the display screen.

[0066] For example, by controlling the timing between the operation of selecting any row of pixel units in the first pixel unit set corresponding to the first data line group and the state of maintaining the absolute value of the amplitude of the first source signal in the first data line group to be greater than or equal to the preset threshold value, the time for refreshing the any row of pixel units by the first data line group can be shortened.

[0067] From the above, the source signal processing method provided by the embodiment of the application can shorten the charging time of the first source signal to the first data line group through the above operation, and can improve the stable state of the first source signal in the first data line group after the charging process is completed by means of the differentiated charging efficiency corresponding to the first electrical parameter and the second electrical parameter, and through the mutual cooperation between the first electrical parameter and the second electrical parameter, so that the amplitude of the first source signal in the first data line group changes rapidly during the duration of the first electrical parameter. On this basis, the first source signal can be charged to the first data line group by the first electrical parameter and the first source signal can be charged to the first data line group by the second electrical parameter, so as to improve the effect of the first source signal obtained by the pixel unit in the first data line group corresponding to a column of pixel units, and further to guarantee the data refresh effect of the display screen. In summary, through the source signal processing method provided by the embodiment of the application, the time required for the amplitude change and stabilization of the first source signal in the first data line group can be shortened, so as to meet the high refresh rate data refresh requirement of the display screen under the condition of high resolution, and make each pixel unit in the display screen be able to stably obtain the first source signal, so as to meet the clear and stable data display requirement of the display screen.

[0068] Based on the foregoing embodiment, the source signal processing method provided by the embodiment of the application can further include the following steps:

[0069] Step A1, charging the second source signal to the second data line group by a third electrical parameter.

[0070] The second data line group includes at least one second data line, and each second data line corresponds to a column of pixel units. The pixel units corresponding to the second data line constitute a second pixel unit set.

[0071] In an embodiment, the second data line group and the first data line group can be adjacent or non-adjacent.

[0072] In an embodiment, the operation of charging the first source signal to the first data line group by the first electrical parameter and the second electrical parameter, and the operation of charging the second source signal to the second data line group by the third electrical parameter, can be performed in sequence or in parallel.

[0073] In an embodiment, the third electrical parameter can be different from the first electrical parameter and the second electrical parameter.

[0074] In an embodiment, the third electrical parameter can be greater than the second intensity parameter of the second source signal; illustratively, the third electrical parameter can represent an absolute value of an amplitude of the second source signal at at least one time point or at least one time period.

[0075] In an embodiment, the third electrical parameter can be determined by:

[0076] obtaining a second intensity parameter of the second source signal and a second historical intensity parameter, and determining the third electrical parameter based on the second intensity parameter and the second historical intensity parameter.

[0077] wherein the second historical intensity parameter comprises an intensity of a neighboring historical source signal of the second source signal.

[0078] Illustratively, the physical meaning of the second intensity parameter and the second historical intensity parameter can be the same as the first intensity parameter and the first historical intensity parameter in the aforementioned embodiments, which will not be repeated here.

[0079] Illustratively, the third electrical parameter can be calculated by formula (1) on the second intensity parameter and the second historical intensity parameter.

[0080] Step A2, charging the second source signal to the second data line with a fourth electrical parameter.

[0081] wherein the charging efficiency of charging the second source signal to the second data line group with the third electrical parameter is higher than the charging efficiency of charging the second source signal to the second data line group with the fourth electrical parameter; by charging the second source signal to the second data line group with the third electrical parameter and charging the second source signal to the second data line group with the fourth electrical parameter, the pixel units in the corresponding column of pixel units of each second data line obtain the second source signal.

[0082] In an embodiment, the absolute value of the amplitude represented by the fourth electrical parameter can be less than the absolute value of the amplitude represented by the third electrical parameter.

[0083] In an embodiment, the absolute value of the amplitude represented by the fourth electrical parameter can be the same as the absolute value of the amplitude represented by the second intensity parameter of the second source signal.

[0084] In an embodiment, the charging efficiency of charging the second source signal to the second data line group with the third electrical parameter is higher than the charging efficiency of charging the second source signal to the second data line group with the fourth electrical parameter, which can include at least one of:

[0085] The charging time of the second source signal to the second data line group by the third electrical parameter is shorter than the charging time of the second source signal to the second data line group by the fourth electrical parameter. For example, when the second source signal is charged to the second data line group by the third electrical parameter, the third time period required for the signal amplitude in the second data line group to change from the initial amplitude to greater than or equal to the preset threshold value can be less than the fourth time period required for the signal amplitude in the second data line group to change from the initial amplitude to greater than or equal to the preset threshold value when the second source signal is charged to the second data line group by the fourth electrical parameter.

[0086] The charging speed of the second source signal to the second data line group by the third electrical parameter is faster than the charging speed of the second source signal to the second data line group by the fourth electrical parameter. Correspondingly, in the above conditions, the third time period can also be less than the fourth time period.

[0087] In an embodiment, the charging efficiency of the second source signal to the second data line group by the third electrical parameter is higher than the charging efficiency of the second source signal to the second data line group by the fourth electrical parameter. The absolute value of the amplitude of the second source signal represented by the third electrical parameter in at least one time period can be greater than the absolute value of the amplitude of the second source signal represented by the fourth electrical parameter in at least one time period. In this way, by charging the second source signal to the second data line group by the third electrical parameter, the second source signal can be charged to the second data line group in a shorter time, while by charging the second source signal to the second data line group by the fourth electrical parameter, the second data line group can be continuously powered, thereby maintaining the continuous effectiveness of the second source data in the corresponding column of pixel units of the second data line group.

[0088] In an embodiment, by charging the second source signal to the second data line group by the third electrical parameter and charging the second source signal to the second data line group by the fourth electrical parameter, the pixel units in the corresponding column of pixel units of each second data line can obtain the second source signal, which can include:

[0089] The second source signal is charged to the second data line group by the third electrical parameter, so that the absolute value of the amplitude of the second source signal in the second data line group can be greater than or equal to the preset threshold value in the third time period. Thereafter, by continuing to charge the second source signal to the second data line group by the fourth electrical parameter, the absolute value of the amplitude of the second source signal in the second data line group can be maintained in a state of being greater than or equal to the preset threshold value. In this way, when any row of pixel units in the corresponding second pixel unit set of the second data line group is selected, i.e., the display screen performs a row scanning operation, the above any row of pixel units can stably obtain the second source signal maintained in the second data line group, thereby ensuring the data refresh effect of each pixel unit and improving the display effect of the display screen.

[0090] Exemplarily, by controlling the timing between the operation of selecting any row of pixel units in the second pixel unit set corresponding to the second data line group and the state of maintaining the absolute value of the amplitude of the second source signal in the second data line group to be greater than or equal to the preset threshold, the time for refreshing the above-mentioned any row of pixel units by the second data line group can be shortened.

[0091] As can be seen from the above, the source signal processing method provided by the embodiment of the application can shorten the charging time of the second source signal to the second data line group by the above-mentioned operation, and can improve the stable state of the second source signal in the second data line group after the end of the above-mentioned charging process by the differential charging efficiency corresponding to the third electrical parameter and the fourth electrical parameter, the mutual cooperation between the third electrical parameter and the fourth electrical parameter, and the rapid change of the amplitude of the second source signal in the second data line group during the duration of the third electrical parameter. On this basis, the second source signal can be obtained by each pixel unit in the column of pixel units corresponding to each second data line by charging the second source signal to the second data line group by the third electrical parameter and charging the second source signal to the second data line group by the third electrical parameter, so as to improve the effect of obtaining the second source signal by each pixel unit in the column of pixel units corresponding to each first data line, and further to guarantee the data refresh effect of the display screen. In summary, by the source signal processing method provided by the embodiment of the application, the time required for the amplitude change and stability of the second source signal in the second data line group can be shortened, so as to meet the data refresh requirement of high refresh rate of the display screen, and make each pixel unit in the display screen obtain the second source signal stably, so as to meet the clear and stable data display requirement of the display screen.

[0092] Based on the foregoing embodiment, the source signal processing method provided by the embodiment of the application can further perform the following operations before charging the first source signal to the first data line group by the first electrical parameter:

[0093] The first data line group is controlled to be conductive.

[0094] Correspondingly, the following operations can be performed before charging the second source signal to the second data line group by the third electrical parameter:

[0095] The second data line group is controlled to be conductive.

[0096] In an embodiment, before the first source data and the second source data are ready, the first data line in the first data line group and the second data line in the second data line group can be in a non-conductive state.

[0097] In an embodiment, a demultiplexer can be arranged between the first data line group and the second data line group and the display driving IC of the display screen, thus, by performing a gating operation on the demux switch in the demultiplexer, the conductive state of the first data line in the first data line group and the second data line in the second data line group can be controlled.

[0098] Figure 2 The circuit structure schematic diagram between the pixel array provided by the embodiments of the present application and the demultiplexer and the row control unit is shown in the figure. Figure 2 As shown, the pixel array 201 can include a plurality of pixel units uniformly distributed, the Scan1 to Scan4 in the row control unit 202 (the figure is illustrated by taking 4 rows as an example, and the actual implementation is not limited to 4 rows) are used to realize the row refresh control of the first row pixel unit to the fourth row pixel unit; the demultiplexer 230 can include a plurality of demultiplexing units, and the demux1 and the demux2 can respectively realize two gating switches of the first column demultiplexing unit adjacent to the row control unit 202 in the longitudinal direction.

[0099] Exemplarily, in the figure, Figure 2 , the first column pixel unit and the second column pixel unit adjacent to the row control unit 202 are taken as examples, before the first source data is ready, the display driving IC of the display screen can control the demux1 to be in a non-gating state, so that the first root longitudinal data line associated with the demux1 and adjacent to the row control unit 202 is in a disconnected state, and when the first source data is ready, the display driving IC can gate the demux1, so as to establish a data transmission path between the display driving IC and the first root longitudinal data line via the demux1, and then the first source signal can be quickly transmitted to the first root longitudinal data line with the first electrical parameter.

[0100] Exemplarily, the second root longitudinal data line adjacent to the first root longitudinal data line can be conducted or disconnected by the demux2, which will not be described herein.

[0101] From the above, the source signal processing method provided by the embodiment of the present application can control each first data line of the first data line group to be turned on and control each second data line of the second data line group to be turned on before the first source signal is charged to the first data line group by using the first electrical parameter and the second source signal is charged to the second data line group by using the third electrical parameter. In this way, by controlling the data lines in the first data line group and the second data line group to be turned on in advance, the real-time control of whether the first data line group and the second data line group are turned on or not is realized, and by the pre-executed turning-on control operation, the efficiency of subsequently charging the first source signal and the second source signal to the first data line group and the second data line group can be improved, so that the refresh time of the first pixel unit set and the second pixel unit set can be further shortened and the data refresh efficiency can be improved.

[0102] Based on the foregoing embodiment, the source signal processing method provided by the embodiment of the present application can further include the following steps:

[0103] If the signal strength of each first data line is greater than or equal to a preset threshold, each second data line of the second data line group is controlled to be turned on.

[0104] For example, if the signal strength of each first data line is greater than or equal to a preset threshold, the second data line in the second data line group can not be controlled to be turned on.

[0105] In an embodiment, the preset threshold can be determined according to the data pixel depth of the data to be displayed by the display screen; for example, the preset threshold can be close to the first intensity parameter.

[0106] Figure 3 The timing structure diagram of the pixel unit refresh provided by the embodiment of the present application is shown in FIG. 2. As shown in FIG. 2, the first source signal is charged to the first data line group by using the first electrical parameter, and the second source signal is charged to the second data line group by using the third electrical parameter. Figure 3As shown, after demux1 is gated at time t1, the first root vertical data line corresponding to demux1 can be in a conductive state, at which time demux1 can charge the first root vertical data line with the first source signal at the first electrical parameter and the second electrical parameter, respectively, in response to the driving operation of the display driving IC. After the above charging operation ends, the amplitude of the first source signal on the first root vertical data line is maintained at a state greater than or equal to a preset threshold value, at which time demux1 can be controlled to switch to a disconnected state. At the same time, after time t2, Scan1 gates the first row of pixel units, at which time the first source signal maintained on the first root vertical data line can be refreshed into the pixel units associated with the first root vertical data line in the first row of pixel units, thereby completing the row refresh operation of the first source signal. At time t2, the display driving IC can gate demux2, thereby performing the same operation to complete the row refresh operation of the second source signal. The operations performed after demux1 and demux2 are gated at times t3 and t4, respectively, can be the same as the operations performed after demux1 and demux2 are gated at times t1 and t2, respectively. The row refresh operations of subsequent rows of pixel units controlled by Scan3 to Scan4 can be the same as the foregoing process, which will not be described again here.

[0107] As can be seen from the above, in the source signal processing method provided by the embodiments of the present application, if the signal strength of each first data line is greater than or equal to a preset threshold value, each second data line of the second data line group is controlled to be conductive. In this way, through the above operation, strict control of the conduction timing between the first data line and the second data line group is achieved, which can shorten the time consumed for switching the conduction state between different data line groups. Moreover, through the above judgment of the stable state of the first source signal in the first data line, the refresh effect of the pixel units associated with the first data line group can also be improved.

[0108] Based on the foregoing embodiments, in the source signal processing method provided by the embodiments of the present application, charging the first source signal to the first data line group at the first electrical parameter can be achieved in the following manner:

[0109] Charging the first source signal to the first data line group at the first electrical parameter based on a first time period;

[0110] Correspondingly, charging the first source signal to the first data line group at the second electrical parameter can be achieved in the following manner:

[0111] Charging the first source signal to the first data line group at the second electrical parameter based on a second time period.

[0112] The second time period is continuous with the first time period.

[0113] In an embodiment, the period in which the first data line group is turned on can be divided into a first time period and a second time period.

[0114] In an embodiment, the first time period and the second time period can be determined by the following manner:

[0115] The first time period and the second time period are determined based on a physical electrical parameter of the first data line group and the demultiplexer associated with the first data line group.

[0116] Exemplarily, the physical electrical parameter can include a capacitor charging constant, wherein the capacitor charging constant refers to a period in which a charging current decays to 63.2% of its initial value, which is usually denoted by symbol τ, and τ is related to a total resistance R and a total capacitance C in the circuit.

[0117] Exemplarily, the total resistance can include an equivalent resistance of the circuit formed by the first data line group and the demultiplexer associated with the first data line group, and the total capacitance C can include an equivalent capacitance of the circuit formed by the first data line group and the demultiplexer associated with the first data line group.

[0118] In an embodiment, the determination of the first time period and the second time period based on the physical electrical parameter can be achieved by the following manner:

[0119] A preset threshold value satisfying a display effect of the display screen is determined, a period in which the first data line group is charged such that a signal strength thereof is greater than or equal to the preset threshold value based on the physical electrical parameter and the first electrical parameter is determined as the first time period, and a difference between the period in which the first data line group is turned on and the first time period is determined as the second time period.

[0120] For example, if the preset threshold value is 99.436% of the first intensity parameter, the first time period can be determined as 2τ and the second time period can be determined as τ based on the first electrical parameter and the physical electrical parameter determined by formula (1).

[0121] In an embodiment, the first time period can be shortened as the absolute value of the amplitude represented by the first electrical parameter increases.

[0122] In an embodiment, the second time period is continuous with the first time period, which can represent a seamless switching from charging the first source signal to the first data line group based on the first electrical parameter to charging the second source signal to the first data line group based on the second electrical parameter, so as to weaken the negative influence of the amplitude decay of the first source signal in the first data line group and improve the probability of the strength of the first source signal remaining stable in the first data line group.

[0123] Correspondingly, the charging of the second source signal to the second data line group based on the third electrical parameter can be achieved by the following manner:

[0124] The second source signal is charged to the second data line group based on the third electrical parameters during the third time period.

[0125] Accordingly, charging the second source signal to the second data line group with the fourth electrical parameter can be achieved in the following way:

[0126] The second source signal is charged to the second data line group based on the fourth electrical parameters during the fourth time period.

[0127] The third and fourth time periods are consecutive.

[0128] The method for determining the third and fourth time periods can be the same as the method for determining the first and second time periods in the aforementioned embodiments, and will not be repeated here.

[0129] In one implementation, the third time period can be shortened as the absolute value of the amplitude represented by the third electrical parameter increases.

[0130] Figure 4 This is a schematic diagram illustrating the changes in the charging rate curve in related technologies. Figure 4 In the diagram, the horizontal axis represents time (τ), and the vertical axis represents the charging rate, which characterizes the ratio between the absolute value of the voltage in the vertical data line and the absolute value of the source signal voltage amplitude. For example... Figure 4 As shown, when the longitudinal data line is charged by the demultiplexer, the charging rate of the longitudinal data line is 99.75% after 6τ.

[0131] Figure 5 This is a schematic diagram illustrating the change in the charging rate curve provided in an embodiment of this application. Figure 5 The coordinates shown are Figure 4 The coordinates shown are the same.

[0132] exist Figure 5 The vertical data line settings, demultiplexer settings, and display driver IC settings can be compared with... Figure 4 The corresponding settings are the same in [the context of the previous sentence]. Figure 5 In the first 2τ, an accelerated charging operation is performed on the longitudinal data line based on the first electrical parameter. After the above charging operation is completed, the charging rate of the longitudinal data line can reach 99.436%. After 2τ, a charging operation is performed on the longitudinal data line based on the second electrical parameter. After 3τ, the charging rate reaches 99.793%.

[0133] For example, Figure 5 The multiplier shown can be the weighting coefficient used to weight the difference in the aforementioned embodiments, from Figure 5 As can be seen, the charging rate is also affected by the multiplier as the charging operation continues. Therefore, by adjusting the multiplier, it is possible to flexibly control the charging process and the charging time period.

[0134] From Figure 4 to Figure 5 The charge rate change curve shown in the figure shows that 3τ time is saved compared with the conventional charging scheme.

[0135] From the above, in the source signal processing method provided by the embodiments of the present application, the first source signal is charged to the first data line group with the first electrical parameter and the second electrical parameter in different time periods, and the second source signal is charged to the second data line group with the third electrical parameter and the fourth electrical parameter in different time periods, and the above time periods are continuous. In this way, the time domain accurate control of charging each source signal to the corresponding data line group is realized; and through the continuous setting between different time periods, the probability of energy decay of each source signal after the end of the charging operation on the corresponding data line group can be reduced, thereby improving the stability of each source signal on the corresponding data line group.

[0136] Based on the foregoing embodiments, the embodiments of the present application also provide a display screen. Figure 6 The structural schematic diagram of the display screen provided by the embodiments of the present application is shown in Figure 6 As shown in the figure, the display screen 6 can include:

[0137] a pixel array 201 composed of a plurality of pixel units;

[0138] a data line 601; wherein each data line corresponds to a column of pixel units in the pixel array 201;

[0139] a controller 602, configured to charge a first source signal to a first data line group with a first electrical parameter; and charge the first source signal to the first data line group with a second electrical parameter; wherein the first data line group includes at least one first data line; the data line includes the first data line; the charging efficiency of charging the first source signal to the first data line group with the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group with the second electrical parameter; by charging the first source signal to the first data line group with the first electrical parameter and charging the first source signal to the first data line group with the second electrical parameter, the pixel units in each column of pixel units corresponding to each first data line obtain the first source signal.

[0140] In an embodiment, the controller 602 can be a display driving IC in the foregoing embodiments.

[0141] In an embodiment, the data line 601 can include a set of longitudinal data lines associated with the pixel array 201 as shown in Figure 2

[0142] ​It can be known from the above that, in the display screen provided by the embodiment of the application, the controller charges the first data lines with the first electrical parameter and the second electrical parameter respectively, and each first data line in the first data line group corresponds to a column of pixel units. The charging efficiency of charging the first data line group with the first source signal by using the first electrical parameter is higher than the charging efficiency of charging the first data line group with the first source signal by using the second electrical parameter. In this way, by the above operation, the charging time of charging the first data line group with the first source signal can be shortened. Moreover, by means of the differentiated charging efficiency corresponding to the first electrical parameter and the second electrical parameter, the first source signal amplitude in the first data line group changes rapidly during the duration of the first electrical parameter, and the stable state of the first source signal in the first data line group after the end of the charging process can be improved. On this basis, by charging the first data line group with the first source signal by using the first electrical parameter and charging the first data line group with the first source signal by using the second electrical parameter, the pixel units in each first data line corresponding to a column of pixel units can obtain the first source signal, so that the effect of the pixel units in each first data line corresponding to a column of pixel units obtaining the first source signal can be improved, and the data refresh effect of the display screen can be ensured. In summary, by the source signal processing method provided by the embodiment of the application, the time required for the amplitude change and stabilization of the first source signal in the first data line group can be shortened, the high refresh rate data refresh requirement of the display screen under high resolution can be met, and each pixel unit in the display screen can stably obtain the first source signal, so that the clear and stable data display requirement of the display screen can be met.

[0143] Based on the foregoing embodiment, in the display screen 6 provided by the embodiment of the application, the controller 602 is configured to charge the second data line group with the second source signal by using a third electrical parameter. The second data line group includes at least one second data line, and each second data line corresponds to a column of pixel units. The pixel units corresponding to the second data line group form a second pixel unit group. The data lines include the second data lines.

[0144] The controller 602 is further configured to charge the second data line with the second source signal by using a fourth electrical parameter.

[0145] The charging efficiency of charging the second data line group with the second source signal by using the third electrical parameter is higher than the charging efficiency of charging the second data line group with the second source signal by using the fourth electrical parameter. By charging the second data line group with the second source signal by using the third electrical parameter and charging the second data line group with the second source signal by using the fourth electrical parameter, each second data line can obtain the second source signal from the pixel units in a column of pixel units.

[0146] It can be known from the above that the display screen provided in the embodiment of the present application, the controller charges the first data line with the third electrical parameter and the fourth electrical parameter respectively, and each second data line in the second data line group corresponds to a column of pixel units, the charging efficiency of charging the second data line group with the second source signal by the third electrical parameter is higher than the charging efficiency of charging the second data line group with the second source signal by the fourth electrical parameter, thus, through the above operation, the charging time of charging the second data line group with the second source signal can be shortened; and by means of the differentiated charging efficiency corresponding to the third electrical parameter and the fourth electrical parameter, the second source signal amplitude in the second data line group changes rapidly during the duration of the third electrical parameter, and the stable state of the second source signal in the second data line group after the end of the above charging process can also be improved; on this basis, by charging the second data line group with the second source signal by the third electrical parameter and charging the second data line group with the second source signal by the third electrical parameter, the pixel units in each second data line corresponding to a column of pixel units can obtain the second source signal, so that the effect of the pixel units in each first data line corresponding to a column of pixel units obtaining the second source signal can be improved, and the data refresh effect of the display screen can be further guaranteed; in summary, through the source signal processing method provided in the embodiment of the present application, not only the time required for the amplitude change and stabilization of the second source signal in the second data line group can be shortened, and the high refresh rate data refresh requirement of the display screen can be further met, but also each pixel unit in the display screen can stably obtain the second source signal, so that the clear and stable data display requirement of the display screen can be met.

[0147] Based on the foregoing embodiment, the display screen 6 provided in the embodiment of the present application further includes a demultiplexer 203; the demultiplexer 203 is connected to the controller 602 and the data line 601 respectively; wherein:

[0148] The demultiplexer 203 is configured to receive the first source signal sent by the controller 602 with the first electrical parameter, and charge the first data line group with the first source signal with the first electrical parameter within a first time period; and receive the first source signal sent by the controller 602 with the second electrical parameter, and charge the first data line group with the first source signal with the second electrical parameter within a second time period.

[0149] The demultiplexer 203 is configured to receive the second source signal sent by the controller 602 with the third electrical parameter, and charge the second data line group with the second source signal with the third electrical parameter within a third time period; and receive the second source signal sent by the controller 602 with the fourth electrical parameter, and charge the second data line group with the second source signal with the fourth electrical parameter within a fourth time period.

[0150] The first time period is continuous with the second time period; and the third time period is continuous with the fourth time period.

[0151] In an embodiment, the demultiplexer 203 can include a plurality of demultiplexing units, and a signal output end of each demultiplexing unit can be connected to the first data line or the second data line, respectively.

[0152] In an embodiment, the controller 602 can determine the first electrical parameter, the second electrical parameter, the third electrical parameter, and the fourth electrical parameter.

[0153] In an embodiment, the controller 602 can determine the first time period, the second time period, the third time period, and the fourth time period.

[0154] Figure 7 Another structural schematic diagram of the display screen provided by the embodiment of the present application is shown in FIG. 7. As shown in FIG. 7, the display screen 7 can include a visual area 701, an upper frame 702, a gate driven on array (GOA) 703, and a fan-out area 704. The visual area 701 can be provided with a pixel array. The GOA 703 can be the row control unit in the foregoing embodiment, and is configured to implement control and driving functions of row-by-row scanning. Figure 7

[0155] Figure 8 Another structural schematic diagram of the display screen corresponding to the embodiment of the present application is shown in FIG. 8. As shown in FIG. 8, the visual area 701 can be provided with the pixel array 201. A plurality of scan line sets 802 included in the GOA 703 are arranged in the visual area 701 and connected to a single row of pixel units in the pixel array 201, and are configured to implement control and driving functions of row-by-row scanning. The data line array 801 connected to the demultiplexer can be the data line 601 in the foregoing embodiment, and is configured to receive a source signal transmitted by the demultiplexer and transmit the source signal to pixel units electrically connected thereto. The number of GOAs in the GOA 703 and the number of data lines in the data line array 801 are related to the resolution of the display screen. Figure 7 Figure 8 A circuit structural schematic diagram between the demultiplexer and the controller provided by the embodiment of the present application is shown in FIG. 9. As shown in FIG. 9, the signal output pins of the controller 602 are arranged in the fan-out area 704. The signal input port of the demultiplexer 203 can be electrically connected to the signal output pins arranged in the fan-out area 704, so that the demultiplexer 203 can acquire a source signal output by the controller 602 in real time and transmit the source signal to the data line array 801.

[0156] Figure 9 Figure 9

[0157] ​​​​It can be known from the above that, in the display screen provided by the embodiment of the application, the demultiplexer charges the first source signal to the first data line group by using the first electrical parameter and the second electrical parameter in different time periods, respectively, and charges the second source signal to the second data line group by using the third electrical parameter and the fourth electrical parameter in different time periods, respectively, and the time periods are continuous. In this way, time domain accurate control of charging each source signal to the corresponding data line group is realized. Moreover, through the continuous arrangement between different time periods, the probability of energy attenuation of each source signal after the charging operation on the corresponding data line group is completed can be reduced, so that the stability of each source signal on the corresponding data line group is improved.

[0158] Based on the foregoing embodiment, the demultiplexer 203 of the display screen 6 provided by the embodiment of the application is configured to receive the first gate signal sent by the controller 602 before receiving the first source signal, and to gate the first demultiplexing switch associated with the first data line group in the demultiplexer 203 based on the first gate signal; and to receive the second gate signal sent by the controller 602 before receiving the second source signal, and to gate the second demultiplexing switch associated with the second data line group based on the second gate signal.

[0159] In an implementation manner, the two demultiplexing switches respectively associated with the first data line group and the second data line group can include the demux1 and the demux2 in the foregoing embodiment.

[0160] In an implementation manner, the controller 602 can gate the first demultiplexing switch associated with the first data line group when the first source signal is ready, and gate the second demultiplexing switch associated with the second data line group when the second source signal is ready.

[0161] It can be known from the above that, in the display screen provided by the embodiment of the application, the demultiplexer in the display screen can receive the first gate signal and the second gate signal sent by the controller before receiving the first source signal and the second source signal, respectively, and gate the demultiplexing switches respectively associated with the first data line group and the second data line group based on the first gate signal. In this way, through the above operation, the controller can flexibly and accurately control the demultiplexer according to actual data refresh requirements; and by performing the gating operation on the first demultiplexing switch and the second demultiplexing switch before receiving the first source signal and the second source signal, the time for receiving and charging the first source signal and the second source signal to the corresponding data line group can be shortened.

[0162] Based on the foregoing embodiment, in the display screen 6 provided by the embodiment of the application, the controller 602 is configured to acquire a first intensity parameter of the first source signal and a first historical intensity parameter, and to determine the first electrical parameter based on the first intensity parameter and the first historical intensity parameter; wherein the first historical intensity parameter includes the intensity of a neighboring historical source signal of the first source signal.

[0163] The controller 602 is further configured to acquire a second intensity parameter of the second source signal and a second historical intensity parameter, and determine a third electrical parameter based on the second intensity parameter and the second historical intensity parameter; wherein the second historical intensity parameter comprises an intensity of a neighboring historical source signal of the second source signal.

[0164] For example, the controller 602 can determine the first electrical parameter and the third electrical parameter respectively by the formula (1) provided in the foregoing embodiments.

[0165] For example, in the case that the refresh rate of the display screen is 120Hz and 144Hz respectively, and the longitudinal pixel resolution is 1.5K, by processing the first source signal and the second source signal based on the first electrical parameter and the second electrical parameter, the time for performing single row scanning within 1Hsync is 3.1us and 2.5us respectively. In this way, by the above operation, the pulse width compression of the single row pixel scanning time is realized, so that more number of rows of pixel scanning can be performed within 1Hsync, thereby making it possible to balance the high resolution, high refresh rate and data display effect of the display screen.

[0166] As can be seen from the above, the controller of the display screen provided by the embodiments of the present application can acquire a first intensity parameter of a first source signal and a first historical intensity parameter of a first data line group, and determine a first electrical parameter based on the first intensity parameter and the first historical intensity parameter, and can also acquire a second intensity parameter of a second source signal and a second historical intensity parameter of a second data line group, and determine a third electrical parameter based on the second intensity parameter and the second historical intensity parameter. In this way, by the above operation, flexible determination of the first electrical parameter and the third electrical parameter is realized; and since the first electrical parameter and the third electrical parameter are respectively associated with the intensity parameter of the first source signal and the second source signal, and the first historical intensity parameter of the neighboring historical source signal of the first source signal and the second historical intensity parameter of the neighboring historical source signal of the second source signal, the probability of gradient mutation of the first intensity parameter and the third intensity parameter can be reduced, thereby improving the data display effect of the display screen.

[0167] The above description of each embodiment tends to emphasize the differences between the embodiments, and the same or similar parts can be mutually referred to, and for the sake of brevity, will not be described here.

[0168] The methods disclosed in each method embodiment provided by the present application can be combined arbitrarily without conflict, to obtain new method embodiments.

[0169] The features disclosed in each product embodiment provided by the present application can be combined arbitrarily without conflict, to obtain new product embodiments.

[0170] The features disclosed in the various method or device embodiments provided in the present application can be combined, if not in conflict, to form new method or device embodiments.

[0171] It should be noted that the computer-readable storage medium described above can be a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Ferromagnetic Random Access Memory (FRAM), a Flash Memory, a magnetic surface memory, an optical disc, or a Compact Disc Read-Only Memory (CD-ROM), etc. storage device; or can be various electronic devices including one or any combination of the above storage devices, such as a mobile phone, a computer, a tablet device, a personal digital assistant, etc.

[0172] It should be noted that in this document, the term "comprising" or "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0173] The above-mentioned sequence number of the embodiments of the present application is only for description, and does not represent the advantages and disadvantages of the embodiments.

[0174] Through the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment method can be realized by means of software and necessary general hardware nodes, and of course can also be realized by hardware, but in many cases the former is a better embodiment. Based on such understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, or an optical disk) and includes a plurality of instructions for causing a terminal device (which can be a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the methods described in the various embodiments of the present application.

[0175] The present application is described with reference to flowcharts and / or block diagrams according to the methods, devices (systems), and computer program products of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices generate a device that implements the functions specified in the flowcharts and / or block diagrams. Figure One The functions specified in one or more flows and / or blocks. Figure One The functions specified in one or more flows and / or blocks.

[0176] These computer program instructions can also be stored in a computer-readable memory that can direct the computer or other programmable data processing devices to work in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including instruction devices that implement the functions specified in the flowcharts and / or block diagrams. Figure One The functions specified in one or more flows and / or blocks. Figure One The functions specified in one or more flows and / or blocks.

[0177] These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are performed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide a process for implementing the functions specified in the flowcharts and / or block diagrams. Figure One The functions specified in one or more flows and / or blocks. Figure One Figure One The functions specified in one or more flows and / or blocks.

[0178] The above is only the preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent flow transformation made by using the contents of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A source signal processing method, the method comprising: charging a first source signal to a first data line group with a first electrical parameter; the first data line group comprising at least one first data line, each first data line corresponding to a column of pixel units, and the pixel units corresponding to the first data line group constituting a first pixel unit set; charging the first source signal to the first data line group with a second electrical parameter; wherein the charging efficiency of charging the first source signal to the first data line group with the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group with the second electrical parameter; and the first source signal is obtained by charging the first source signal to the first data line group with the first electrical parameter and charging the first source signal to the first data line group with the second electrical parameter, so as to satisfy the pixel units in the column corresponding to each first data line.

2. The method of claim 1, wherein, The method further comprises: charging a second source signal to a second data line group with a third electrical parameter; wherein the second data line group comprises at least one second data line, each second data line corresponding to a column of pixel units, and the pixel units corresponding to the second data line group constituting a second pixel unit set; charging the second source signal to the second data line group with a fourth electrical parameter; wherein the charging efficiency of charging the second source signal to the second data line group with the third electrical parameter is higher than the charging efficiency of charging the second source signal to the second data line group with the fourth electrical parameter; the second source signal is obtained by charging the second source signal to the second data line group with the third electrical parameter and charging the second source signal to the second data line group with the fourth electrical parameter, so as to satisfy the pixel units in the column corresponding to each second data line.

3. The method of claim 2, wherein, Before the charging of the first source signal to the first data line group with the first electrical parameter, the method further comprises: controlling each first data line of the first data line group to be conductive; Before the charging of the second source signal to the second data line group with the third electrical parameter, the method further comprises: controlling each second data line of the second data line group to be conductive.

4. The method of claim 3, wherein, The method further comprises: if the signal intensity of each first data line is greater than or equal to a preset threshold, controlling each second data line of the second data line group to be conductive.

5. The method of claim 4, wherein, The charging of the first source signal to the first data line group with the first electrical parameter comprises: charging the first source signal to the first data line group with the first electrical parameter based on a first time period; The charging of the first source signal to the first data line group with the second electrical parameter comprises: charging the first source signal to the first data line group with the second electrical parameter based on a second time period; wherein the second time period is continuous with the first time period; The charging of the second source signal to the second data line group with the third electrical parameter comprises: charging the second source signal to the second data line group with the third electrical parameter based on a third time period; The charging of the second source signal to the second data line with the fourth electrical parameter comprises: charge the second source signal to the second data line group with the fourth electrical parameter based on a fourth time period; the third time period is continuous with the fourth time period.

6. A display screen, comprising: a pixel array comprising a plurality of pixel units; data lines, wherein each data line corresponds to a column of pixel units in the pixel array; a controller configured to: charge a first source signal to a first data line group with a first electrical parameter; the first data line group comprises at least one first data line; the data lines comprise the first data lines; charge the first source signal to the first data line group with a second electrical parameter; wherein the charging efficiency of charging the first source signal to the first data line group with the first electrical parameter is higher than the charging efficiency of charging the first source signal to the first data line group with the second electrical parameter; obtain the first source signal by charging the first source signal to the first data line group with the first electrical parameter and charging the first source signal to the first data line group with the second electrical parameter, so that each first data line corresponds to a pixel unit in a column of pixel units.

7. The display screen of claim 6, wherein: the controller is configured to charge a second source signal to a second data line group with a third electrical parameter; the second data line group comprises at least one second data line, each second data line corresponds to a column of pixel units, and the pixel units corresponding to the second data line group form a second set of pixel units; the data lines comprise the second data lines; charge the second source signal to the second data line group with a fourth electrical parameter; wherein the charging efficiency of charging the second source signal to the second data line group with the third electrical parameter is higher than the charging efficiency of charging the second source signal to the second data line group with the fourth electrical parameter; obtain the second source signal by charging the second source signal to the second data line group with the third electrical parameter and charging the second source signal to the second data line group with the fourth electrical parameter, so that each second data line corresponds to a pixel unit in a column of pixel units.

8. The display screen of claim 7, wherein, The display screen further comprises a demultiplexer connected to the controller and the data lines respectively; the demultiplexer is configured to receive the first source signal sent by the controller with the first electrical parameter, and charge the first source signal to the first data line group with the first electrical parameter within a first time period, and receive the first source signal sent by the controller with the second electrical parameter, and charge the first source signal to the first data line group with the second electrical parameter within a second time period; wherein the first time period is continuous with the second time period; the demultiplexer is configured to receive the second source signal sent by the controller with the third electrical parameter, and charge the second source signal to the second data line group with the third electrical parameter within a third time period, and receive the second source signal sent by the controller with the fourth electrical parameter, and charge the second source signal to the second data line group with the fourth electrical parameter within a fourth time period; wherein the third time period is continuous with the fourth time period.

9. The display screen of claim 8, wherein the demultiplexer is configured to receive a first gate signal transmitted by the controller prior to receiving the first source signal and to gate the first demultiplexing switch associated with the first data line group based on the first gate signal, and to receive a second gate signal transmitted by the controller prior to receiving the second source signal and to gate the second demultiplexing switch associated with the second data line group based on the second gate signal.

10. The display screen of any of claims 7 to 9, the controller to obtain a first intensity parameter of the first source signal and a first historical intensity parameter, and to determine the first electrical parameter based on the first intensity parameter and the first historical intensity parameter; wherein, The first historical intensity parameter comprises an intensity of a neighboring historical source signal of the first source signal. The controller is further configured to obtain a second intensity parameter and a second historical intensity parameter of the second source signal, and determine the third electrical parameter based on the second intensity parameter and the second historical intensity parameter, wherein the second historical intensity parameter comprises an intensity of a neighboring historical source signal of the second source signal.

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