Display control method and device, electronic device, and display device
By calculating the voltage sudden change trend value of sub-pixels in the LCD display panel and providing compensation voltage, the crosstalk problem of uneven light and darkness is solved, and the display effect of the display panel is improved.
Patent Information
- Application Number
- CN202310839260.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-10
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2043-07-10
AI Technical Summary
In the LCD display panel, the coupling effect between the signal on the metal trace and the pixel electrode or the common electrode leads to uneven light and dark crosstalk, which affects the display effect.
By obtaining the data voltage of sub-pixels in adjacent rows, calculating the voltage sudden change trend value, and determining the compensation voltage of the common electrode based on the sudden change trend value, providing the compensation voltage to the sub-pixels to reduce the voltage offset of the common electrode, ensuring that the voltage difference between the pixel electrode and the common electrode meets the preset value, and avoiding crosstalk with uneven light and darkness.
It effectively reduces the impact of voltage sudden change on the common electrode voltage, ensures the brightness consistency of sub-pixels, avoids crosstalk with uneven light and darkness, and improves display quality.
Smart Images

Figure CN116844500B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of display technology, and in particular to a display control method and device, an electronic device, and a display device. Background Art
[0002] In a liquid crystal display (LCD), each subpixel corresponds to a pixel circuit. This circuit supplies a pixel voltage to the pixel electrode, creating an electric field between the pixel electrode and the common electrode to drive the liquid crystal to display. The LCD array substrate contains multiple metal traces. Signals on these traces couple with the pixel electrodes or the common electrode, leading to crosstalk, a problem that causes uneven brightness across the display panel. Summary of the Invention
[0003] The present disclosure provides a display control method, an electronic device, and a display device.
[0004] According to a first aspect of the present disclosure, a display control method is provided, which is applied to a display panel, wherein the display panel includes M rows and N columns of sub-pixels, and the N columns of sub-pixels correspond one-to-one to N data lines. The method includes:
[0005] Obtaining a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels, where i is a natural number greater than or equal to 1 and less than M;
[0006] Determine a voltage mutation trend value corresponding to the sub-pixels in the i-th row according to the first data voltage, the second data voltage, and the mutation voltage threshold;
[0007] Determine the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value;
[0008] A corresponding first data voltage is provided to each sub-pixel in the i-th row of sub-pixels, and a compensation voltage is provided to the common electrode corresponding to the i-th row of sub-pixels, so as to control the i-th row of sub-pixels to display.
[0009] In some embodiments, determining the voltage mutation trend value corresponding to the sub-pixels in the i-th row according to the first data voltage, the second data voltage, and the mutation voltage threshold includes:
[0010] determining a voltage difference between the second data voltage and the first data voltage in each column of sub-pixels;
[0011] Determine the column mutation trend value corresponding to the i-th row sub-pixel in the corresponding column according to the voltage difference and the mutation voltage threshold;
[0012] According to the column mutation trend value corresponding to the i-th row sub-pixels in each column, the voltage mutation trend value corresponding to the i-th row sub-pixels is determined, and the voltage mutation trend value is the sum of the column mutation trend values corresponding to the i-th row sub-pixels in each column.
[0013] In some embodiments, determining the column mutation trend value corresponding to the i-th row of sub-pixels in the corresponding column based on the voltage difference and the mutation voltage threshold includes at least one of the following:
[0014] When the voltage difference is greater than or equal to the mutation voltage threshold and the first data voltage is less than the second data voltage, determining the column mutation trend value corresponding to the i-th row sub-pixel in the corresponding column to be a first preset value;
[0015] When the voltage difference is greater than or equal to the mutation voltage threshold and the first data voltage is greater than the second data voltage, determining the column mutation trend value corresponding to the i-th row sub-pixel in the corresponding column to be a second preset value;
[0016] When the voltage difference is less than the mutation voltage threshold, the column mutation trend value corresponding to the i-th row sub-pixel in the corresponding column is determined to be a third preset value.
[0017] In some embodiments, determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value includes:
[0018] The preset relationship table between voltage mutation trend and compensation voltage is queried to determine the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row. The relationship table between voltage mutation trend and compensation voltage includes the corresponding relationship between compensation voltage and voltage mutation trend value.
[0019] In some embodiments, determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value includes:
[0020] The compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row is determined according to the voltage mutation trend value and a preset compensation relationship, where the compensation relationship represents the corresponding relationship between the compensation voltage and the voltage mutation trend value.
[0021] In some embodiments, the compensation voltage corresponds to a preset trend value range, and determining the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels according to the voltage mutation trend value includes:
[0022] Determine the trend value range to which the voltage mutation trend value belongs;
[0023] The compensation voltage corresponding to the trend value range is determined as the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row.
[0024] In some embodiments, the sudden voltage threshold is greater than or equal to the voltage sudden value corresponding to the sudden 64 gray scale.
[0025] In some embodiments, the first preset value is +1; the second preset value is -1; and the third preset value is 0.
[0026] According to a second aspect of the present disclosure, a display control device is provided, which is applied to a display panel. The display panel includes M rows and N columns of sub-pixels, and the N columns of sub-pixels correspond one-to-one to N data lines. The device includes:
[0027] an acquisition module, configured to acquire a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels, wherein i is a natural number greater than or equal to 1 and less than M;
[0028] a mutation trend determination module, configured to determine a voltage mutation trend value corresponding to sub-pixels in the i-th row according to the first data voltage, the second data voltage, and the mutation voltage threshold;
[0029] A compensation voltage determination module, configured to determine the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value;
[0030] The display control module is used to provide a corresponding first data voltage to each sub-pixel in the i-th row of sub-pixels and provide a compensation voltage to the common electrode corresponding to the i-th row of sub-pixels to control the i-th row of sub-pixels to display.
[0031] According to a third aspect of the present disclosure, there is provided an electronic device, including:
[0032] at least one processor; and
[0033] a memory communicatively connected to at least one processor; wherein,
[0034] The memory stores instructions that can be executed by at least one processor. The instructions are executed by the at least one processor to enable the at least one processor to execute the display control method in any embodiment of the present disclosure.
[0035] According to the fourth aspect of the present disclosure, a display device is provided, including a display panel, and also including the display control device in any embodiment of the present disclosure or the electronic device in the embodiment of the present disclosure, the display panel includes M rows and N columns of sub-pixels, and the N columns of sub-pixels correspond one-to-one to N data lines.
[0036] The technical solution of the embodiment of the present disclosure obtains a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels; determines a voltage mutation trend value corresponding to the i-th row of sub-pixels based on the first data voltage, the second data voltage and the mutation voltage threshold; determines a compensation voltage of the common electrode corresponding to the i-th row of sub-pixels based on the voltage mutation trend value; during display, provides the corresponding first data voltage to each sub-pixel in the i-th row of sub-pixels, and provides a compensation voltage to the common electrode corresponding to the i-th row of sub-pixels, so that the voltage of the common electrode is the sum of the common voltage and the compensation voltage, thereby reducing the common electrode voltage offset caused by the voltage mutation of the second data voltage relative to the first data voltage, reducing the impact of the voltage mutation on the common electrode voltage corresponding to the i-th row of sub-pixels, ensuring that the voltage difference between the pixel electrode and the common electrode of each sub-pixel in the i-th row of sub-pixels meets the preset voltage difference, and thus can ensure that the brightness of each sub-pixel meets the preset brightness during display, avoiding crosstalk caused by uneven brightness.
[0037] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] The accompanying drawings are provided to facilitate a better understanding of the present invention and do not constitute a limitation of the present disclosure.
[0039] Figure 1 It is a structural schematic diagram of a display panel in the related art;
[0040] Figure 2 is a schematic diagram of the common electrode voltage change;
[0041] Figure 3 This is a schematic structural diagram of a display panel in one embodiment of the present disclosure;
[0042] Figure 4 A flow chart showing a control method according to an embodiment of the present disclosure;
[0043] Figure 5 is a structural block diagram of a display control device in one embodiment of the present disclosure;
[0044] Figure 6 A schematic diagram of a workflow of a display control device according to an embodiment of the present disclosure;
[0045] Figure 7 FIG. 4 is a structural block diagram of a display device in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0046] The following description of exemplary embodiments of the present disclosure is made in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding. These details should be considered as merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.
[0047] Figure 1 FIG. 1 is a schematic diagram of a structure of a display panel in the related art. The display panel may be an LCD display panel. Figure 1 As shown, the display panel includes a plurality of gate lines and a plurality of data lines, the gate lines are arranged along a first direction (in Figure 1 The data line extends in the second direction (in the horizontal direction), Figure 1 The plurality of gate lines and the plurality of data lines extend in a vertical direction (in the vertical direction), and multiple gate lines and multiple data lines intersect to define multiple sub-pixels. Each sub-pixel corresponds to a pixel circuit. The pixel circuit includes a first thin-film transistor (TFT), the gate of the first TFT is connected to the corresponding gate line, the source of the first TFT is connected to the corresponding data line, and the drain of the first TFT is connected to one substrate of the capacitor. The other substrate of the capacitor is connected to the common electrode signal. Typically, the plate connected to the first TFT in the capacitor is the pixel electrode, and the plate connected to the common electrode signal is the common electrode.
[0048] like Figure 1 As shown, sub-pixels in the same column share a data line, and sub-pixels in the same row share a gate line. The gate driver module (usually a GOA unit) sequentially provides gate signals to the gate lines, turning on the first TFTs in the sub-pixels in the corresponding rows. This allows the data driver module to sequentially provide data voltages to the sub-pixels in the corresponding rows via the data lines. The data voltages charge each pixel electrode through the pixel circuit, creating a certain voltage difference between the pixel electrode and the common electrode. The greater the voltage difference, the higher the grayscale displayed by the sub-pixel.
[0049] Figure 2 Schematic diagram of the common electrode voltage change. Typically, the common electrode voltage Vcom in a display panel is a fixed common voltage V0, but due to coupling, the common electrode voltage Vcom may shift. This shift is caused by the grayscale mutation of adjacent rows of sub-pixels on the data line.
[0050] For example, when the grayscale of the sub-pixels in the i-th row is L0 and the grayscale of the sub-pixels in the i+1-th row is L127 in the same column, the data voltage on the data line of the sub-pixels in this column suddenly changes from the grayscale voltage of L0 to the grayscale voltage of L127, causing the voltage applied to the sub-pixels to suddenly increase. Due to the coupling effect, the common electrode voltage Vcom of the sub-pixels in the i-th row shifts in the increasing direction to V1, as shown in FIG. Figure 2As shown. When the common electrode voltage Vcom of the i-th row sub-pixels shifts from V0 to V1 in the increasing direction, the pixel electrode V pixel The voltage difference between the sub-pixel and the common electrode decreases, making the sub-pixel display brightness darker, for example Figure 2 The R sub-pixel and the B sub-pixel in the negative polarity sub-pixel are pixel The voltage difference between the sub-pixel and the common electrode increases, making the sub-pixel display brightness brighter, for example Figure 2 The G sub-pixel in the middle causes crosstalk phenomenon with uneven brightness and dark areas.
[0051] Similarly, when the grayscale of the i-th row of subpixels is L127 and the grayscale of the i+1-th row of subpixels is L0, the data voltage on the data line of the subpixels in this column suddenly changes from the L127 grayscale voltage to the L0 grayscale voltage, causing the voltage applied to the subpixels to suddenly decrease. Due to coupling, the common electrode voltage Vcom of the i-th row of subpixels shifts in a decreasing direction to -V1. When the common electrode voltage Vcom of the i-th row of subpixels shifts in a decreasing direction from V0 to -V1, the voltage difference between the pixel electrode and the common electrode of the positive polarity subpixels in the i-th row of subpixels increases, causing the subpixels to display brighter brightness. The voltage difference between the pixel electrode and the common electrode of the negative polarity subpixels decreases, causing the subpixels to display darker brightness, which also leads to uneven crosstalk.
[0052] It should be noted that the final offset of the common electrode voltage of the i-th row of sub-pixels is related to the number of sub-pixels that undergo mutation and the mutation direction in the sub-pixels in the row. In the same column of sub-pixels, when the grayscale of the i-th row of sub-pixels to the i+1-th row of sub-pixels suddenly increases, the mutation direction can be positive; when the grayscale of the i-th row of sub-pixels to the i+1-th row of sub-pixels suddenly decreases, the mutation direction can be negative.
[0053] In order to solve some problems in the related art, an embodiment of the present disclosure provides a display control method.
[0054] Figure 3 Schematic diagram of the structure of a display panel in one embodiment of the present disclosure. Figure 4 The display control method in the embodiment of the present disclosure can be applied to a display panel. The schematic diagram of the display panel can be as follows: Figure 3 As shown. The display panel includes M rows and N columns of sub-pixels, with the N columns of sub-pixels corresponding one-to-one to the N data lines. The display panel also includes M gate lines, with the M gate lines corresponding one-to-one to the M rows of sub-pixels. The gate lines provide gate signals to the sub-pixels in the corresponding rows, and the data lines provide data voltages to the corresponding sub-pixels. The data lines sequentially provide data signals to the sub-pixels in the corresponding columns. Wherein, M and N are both natural numbers greater than 1.
[0055] like Figure 3 As shown, a rectangular coordinate system can be established on the display panel. For example, a rectangular coordinate system is established with the upper left corner of the display panel as the origin. The gate lines 31 extend along the first direction X, and the data lines 32 extend along the second direction Y. M gate lines 31 and N data lines 32 intersect with each other. Therefore, the coordinates of the points where the data lines 32 and the gate lines 31 intersect can be regarded as the coordinates of the sub-pixel. Thus, each sub-pixel has corresponding coordinates. For example, Figure 3 The coordinates of the sub-pixel in the i-th row and j-th column can be expressed as (j, i), where j is the horizontal coordinate and i is the vertical coordinate; the coordinates of the sub-pixel in the i+1-th row and j-th column can be expressed as (j, i+1). Therefore, the sub-pixel can be represented by the coordinates corresponding to the sub-pixel. For example, (j, i) represents the sub-pixel in the i-th row and j-th column. Using coordinates instead of sub-pixels realizes the digitization of sub-pixels and facilitates the calculation of voltage mutation trend values in subsequent processes. Wherein, j is a natural number greater than or equal to 1 and less than or equal to N.
[0056] Assuming the display panel has a resolution of 1920*1080, each row has 3*1920 sub-pixels and each column has 1080 sub-pixels. All sub-pixels of the display panel can be represented by 3*1920*1080 coordinate points. Where i is a natural number greater than or equal to 1 and less than M.
[0057] The display control method of the embodiment of the present disclosure may include steps S10 to S40.
[0058] In step S10 , a first data voltage pre-provided to each sub-pixel in the i-th row and a second data voltage pre-provided to each sub-pixel in the (i+1)-th row are obtained, where i is a natural number greater than or equal to 1 and less than M.
[0059] The data voltage provided to each sub-pixel in the i-th row of sub-pixels is called a first data voltage, and the first data voltages of each sub-pixel in the i-th row of sub-pixels may be different. The data voltage provided to each sub-pixel in the i+1-th row of sub-pixels is called a second data voltage, and the second data voltages of each sub-pixel in the i+1-th row of sub-pixels may be different.
[0060] It should be noted that the data lines are connected to a data driver module, which provides data voltages to the data lines so that the data lines can provide data voltages to corresponding sub-pixels. The data driver module includes a buffer that stores a first data voltage to be provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage to be provided to each sub-pixel in the i+1-th row of sub-pixels. Exemplarily, the first data voltage and the second data voltage can be obtained from the buffer.
[0061] For example, the first data voltage pre-provided to each sub-pixel in the i-th row can be obtained from the buffer of the data driving module, and the second data voltage pre-provided to each sub-pixel in the i+1-th row can be obtained.
[0062] The buffer can cache the data voltage of one frame. When the resolution of the display panel is 1920*1080, the data voltage of the (j, 1) to (j, 1080) sub-pixels pre-provided to each j data line can be obtained.
[0063] In step S20 , a voltage mutation trend value corresponding to the sub-pixels in the i-th row is determined according to the first data voltage, the second data voltage, and the mutation voltage threshold.
[0064] It should be noted that the j-th column subpixel corresponds to the j-th data line, and the data voltage of the j-th column subpixel is provided by the j-th data line to the subpixels in each row in sequence. The first data voltage and the second data voltage are respectively the data voltages of two subpixels in adjacent rows in the same column of subpixels. For example, the first data voltage is the data voltage of the subpixel in the j-th column and the i-th row, and the second data voltage is the data voltage of the subpixel in the j-th column and the i+1-th row.
[0065] The voltage mutation threshold can be set as needed. The voltage mutation threshold can be a voltage mutation value that can cause crosstalk between adjacent sub-pixels. For example, when the grayscale voltage difference between two adjacent sub-pixels is 64 grayscale voltages, crosstalk may occur. In this case, the voltage mutation threshold can be greater than or equal to the voltage mutation value corresponding to the 64 grayscale mutation.
[0066] It should be noted that the data voltage is the data signal provided to the pixel circuit. The voltage signal ultimately provided by the pixel circuit to the pixel electrode may be different from the data voltage. There is a corresponding relationship between the voltage of the pixel electrode and the data voltage. Therefore, the mutation voltage threshold here is the threshold corresponding to the data voltage.
[0067] For example, the voltage mutation value corresponding to the grayscale mutation of 64 can be understood as the data voltage mutation value corresponding to the grayscale mutation of two adjacent sub-pixels by 64 grayscales. For example, if the grayscale voltages of two adjacent sub-pixels are respectively L0 grayscale voltage and L64 grayscale voltage, the voltage mutation value corresponding to the grayscale mutation of 64 can be the difference between the data voltage corresponding to the L0 grayscale voltage and the data voltage corresponding to the L64 grayscale voltage.
[0068] It should be noted that the sudden voltage threshold is not limited to the voltage sudden value corresponding to the sudden change of 64 gray levels, and may also be the voltage sudden value corresponding to the sudden change of another number of gray levels.
[0069] According to the first data voltage, the second data voltage and the sudden change voltage threshold corresponding to each row, the voltage sudden change trend value corresponding to the sub-pixels in each row can be determined.
[0070] In step S30 , the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row is determined according to the voltage mutation trend value.
[0071] like Figure 3 As shown, each sub-pixel corresponds to a pixel electrode and a common electrode. For example, the common electrodes of the sub-pixels in the same row are interconnected. Through the above analysis of related technologies, it can be seen that a sudden change in the second data voltage relative to the first data voltage can cause a voltage shift in the common electrode corresponding to the i-th row of sub-pixels, resulting in a crosstalk phenomenon of uneven brightness. To avoid the crosstalk phenomenon, the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels can be determined based on the voltage mutation trend value of the i-th row of sub-pixels.
[0072] In step S40 , a corresponding first data voltage is provided to each sub-pixel in the i-th row of sub-pixels, and a compensation voltage is provided to the common electrode corresponding to the i-th row of sub-pixels, so as to control the i-th row of sub-pixels to display.
[0073] It should be noted that, in the display panel, the common electrode is connected to a common voltage signal, and thus the voltage of the common electrode is usually a common voltage.
[0074] After determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row, when the sub-pixels in the i-th row are displayed, the corresponding first data voltage is provided to each sub-pixel in the i-th row, and the compensation voltage is provided to the common electrode corresponding to the sub-pixels in the i-th row, so that the voltage of the common electrode is the sum of the common voltage and the compensation voltage. In this way, the common electrode voltage offset caused by the voltage mutation of the second data voltage relative to the first data voltage can be reduced, and the influence of the voltage mutation on the common electrode voltage corresponding to the sub-pixels in the i-th row can be reduced, thereby ensuring that the voltage difference between the pixel electrode and the common electrode of each sub-pixel in the i-th row meets the preset voltage difference, and thus ensuring that the brightness of each sub-pixel meets the preset brightness during display, avoiding crosstalk caused by uneven brightness.
[0075] The display control method of the embodiment of the present disclosure obtains a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels; determines a voltage mutation trend value corresponding to the i-th row of sub-pixels based on the first data voltage, the second data voltage and the mutation voltage threshold; determines a compensation voltage of a common electrode corresponding to the i-th row of sub-pixels based on the voltage mutation trend value; provides a corresponding first data voltage to each sub-pixel in the i-th row of sub-pixels, and provides a compensation voltage to the common electrode corresponding to the i-th row of sub-pixels, so as to control the i-th row of sub-pixels to display.
[0076] Such a display control process determines the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels, and then provides the compensation voltage to the common electrode corresponding to the i-th row of sub-pixels during display, so that the voltage of the common electrode is the sum of the common voltage and the compensation voltage. As a result, the common electrode voltage offset caused by the voltage mutation of the second data voltage relative to the first data voltage is reduced, and the influence of the voltage mutation on the common electrode voltage corresponding to the i-th row of sub-pixels is reduced, ensuring that the voltage difference between the pixel electrode and the common electrode of each sub-pixel in the i-th row of sub-pixels meets the preset voltage difference. Therefore, during display, the brightness of each sub-pixel can be guaranteed to meet the preset brightness, avoiding the crosstalk phenomenon of uneven brightness and dark.
[0077] In one embodiment, determining the voltage mutation trend value corresponding to the sub-pixels in the i-th row according to the first data voltage, the second data voltage, and the mutation voltage threshold may include steps S21 to S23.
[0078] In step S21, the voltage difference between the second data voltage and the first data voltage in each column of sub-pixels is determined. For example, after obtaining the first data voltage of the sub-pixel in the j-th column and the i-th row and the second data voltage of the sub-pixel in the j-th column and the (i+1)-th row, the voltage difference between the second data voltage and the first data voltage is determined. For example, the voltage difference between the second data voltage and the first data voltage can be understood as the absolute value of the difference between the second data voltage and the first data voltage.
[0079] In step S22, a column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is determined based on the voltage difference and the mutation voltage threshold. For example, the column mutation trend value corresponding to the sub-pixel in the i-th row in the j-th column can be determined by comparing the voltage difference and the mutation voltage threshold, as well as the magnitude relationship between the first data voltage and the second data voltage.
[0080] In step S23 , the voltage mutation trend value corresponding to the i-th row sub-pixels is determined according to the column mutation trend value corresponding to the i-th row sub-pixels in each column. The voltage mutation trend value is the sum of the column mutation trend values corresponding to the i-th row sub-pixels in each column.
[0081] It should be noted that, for each column of sub-pixels in the i-th row of sub-pixels, the column mutation trend value can be a positive column mutation trend value, a negative column mutation trend value, or 0. A positive column mutation trend value can cause the common electrode voltage corresponding to the i-th row of sub-pixels to shift in an increasing direction, a negative column mutation trend value can cause the common electrode voltage corresponding to the i-th row of sub-pixels to shift in a decreasing direction, and 0 will not cause the common electrode voltage corresponding to the i-th row of sub-pixels to shift.
[0082] In a display panel, the common electrodes of sub-pixels in the same row are interconnected, and the column mutation trend value corresponding to the sub-pixels in the i-th row is set to the sum of the column mutation trend values corresponding to the sub-pixels in the i-th row in each column. The influence of the column mutation trend value of each sub-pixel in the i-th row on the overall offset of the common electrode voltage can be determined. Therefore, when the common electrode voltage is compensated with the compensation voltage corresponding to the sum of the column mutation trend values, the brightness difference between the actual display brightness of each sub-pixel and the preset display brightness can be reduced, thereby improving the overall display effect of the sub-pixels in the i-th row and reducing the uneven brightness and dark crosstalk phenomenon of the sub-pixels in the i-th row.
[0083] In one embodiment, the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is determined based on the voltage difference and the mutation voltage threshold, including at least one of the following: when the voltage difference is greater than or equal to the mutation voltage threshold, and the first data voltage is less than the second data voltage, the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is determined to be a first preset value; when the voltage difference is greater than or equal to the mutation voltage threshold, and the first data voltage is greater than the second data voltage, the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is determined to be a second preset value; when the voltage difference is less than the mutation voltage threshold, the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is determined to be a third preset value.
[0084] For example, in the jth column of sub-pixels, the first data voltage of the i-th row of sub-pixels is V3, the second data voltage of the i+1th row of sub-pixels is V4, and the mutation voltage threshold is V2. When |V4-V3|≥V2, and V3 is less than V4, the column mutation trend value corresponding to the i-th row of sub-pixels in the jth column is determined to be the first preset value. Therefore, the first preset value can be assigned to the coordinate (j, i).
[0085] For example, the first preset value may be +1. V3 is less than V4, indicating that the voltage increases from the i-th row of sub-pixels to the i+1-th row of sub-pixels. Setting the first preset value to +1 facilitates summation. It is understood that the first preset value is not limited to +1 and may be set to other values.
[0086] For example, in the jth column of sub-pixels, the first data voltage of the i-th row of sub-pixels is V3, the second data voltage of the i+1th row of sub-pixels is V4, and the mutation voltage threshold is V2. When |V4-V3|≥V2, and V3 is less than V4, the column mutation trend value corresponding to the i-th row of sub-pixels in the jth column is determined to be the second preset value. Therefore, the second preset value can be assigned to the coordinate (j, i).
[0087] For example, the second preset value may be -1. V3 is greater than V4, indicating that the voltage decreases from the i-th row of sub-pixels to the i+1-th row of sub-pixels. Setting the first preset value to -1 facilitates summation. It is understood that the second preset value is not limited to -1 and may be set to other values.
[0088] For example, in the sub-pixels of the j-th column, the first data voltage of the sub-pixel in the i-th row is V3, the second data voltage of the sub-pixel in the (i + 1)-th row is V4, and the mutation voltage threshold is V2. When ∣V4 - V3∣ < V2, it is determined that the column mutation trend value corresponding to the sub-pixel in the i-th row in the j-th column is the third preset value. Thus, the coordinate (j, i) can be assigned the third preset value.
[0089] ∣V4 - V3∣ < V2 indicates that when going from the i-th row to the (i + 1)-th row, the change in the data voltage does not reach the mutation voltage threshold, and the influence on the common electrode voltage is not sufficient to cause crosstalk. Therefore, exemplarily, the third preset value can be set to 0, so that the third preset value will not affect the voltage mutation trend value of the sub-pixel in the i-th row.
[0090] In another embodiment, in step S21, the voltage difference between the second data voltage and the first data voltage in each column of sub-pixels is determined. Exemplarily, after obtaining the first data voltage of the sub-pixel in the i-th row of the j-th column and the second data voltage of the sub-pixel in the (i + 1)-th row of the j-th column, the voltage difference between the second data voltage and the first data voltage is determined. Exemplarily, the voltage difference between the second data voltage and the first data voltage can be understood as the difference between the second data voltage and the first data voltage. The voltage difference between the second data voltage and the first data voltage can be 0, less than 0, or greater than 0.
[0091] In another embodiment, in step S22, according to the voltage difference and the mutation voltage threshold, the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is determined. Exemplarily, the mutation voltage threshold can include a first mutation voltage threshold and a second mutation voltage threshold. The absolute value of the mutation voltage threshold can be V2, the first mutation voltage threshold can be +V2, and the second mutation voltage threshold can be -V2. The column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column can be determined according to the magnitude relationship between the voltage difference and the mutation voltage threshold.
[0092] For example, when the voltage difference is greater than or equal to the first mutation voltage threshold, it is determined that the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is the first preset value.
[0093] For example, when the voltage difference is less than or equal to the second mutation voltage threshold, it is determined that the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is the second preset value.
[0094] For example, when the voltage difference is greater than the second mutation voltage threshold and less than the first mutation voltage threshold, it is determined that the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is the third preset value.
[0095] In one embodiment, the first preset value is +1; the second preset value is -1; the third preset value is 0.
[0096] For example, in the j-th column of sub-pixels, the first data voltage of the sub-pixel in the i-th row is V3, the second data voltage of the sub-pixel in the (i + 1)-th row is V4, the mutation voltage threshold is V2, and V2 > 0. The voltage difference is V4 - V3. If V4 - V3 ≥ +V2, it is determined that the column mutation trend value corresponding to the sub-pixel in the j-th column and the i-th row, i.e., (j, i), is +1; if V4 - V3 ≤ -V2, it is determined that the column mutation trend value corresponding to the sub-pixel in the j-th column and the i-th row, i.e., (j, i), is -1; if -V2 < V4 - V3 < +V2, it is determined that the column mutation trend value corresponding to the sub-pixel in the j-th column and the i-th row, i.e., (j, i), is 0.
[0097] By using the method of the embodiment of the present disclosure, the column mutation trend value of each column of sub-pixels in the i-th row of sub-pixels can be determined. Calculate the sum of the column mutation trend values of each sub-pixel in the i-th row of sub-pixels to obtain the voltage mutation trend value Si corresponding to the i-th row of sub-pixels.
[0098] In one embodiment, determining the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels according to the voltage mutation trend value may include: querying a preset relationship table of voltage mutation trend and compensation voltage to determine the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels, and the relationship table of voltage mutation trend and compensation voltage includes the corresponding relationship between the compensation voltage and the voltage mutation trend value.
[0099] Exemplarily, a relationship table of voltage mutation trend and compensation voltage can be preset in advance, and the relationship table of voltage mutation trend and compensation voltage includes the corresponding relationship between the compensation voltage and the voltage mutation trend value. After determining the voltage mutation trend value Si corresponding to the i-th row of sub-pixels, the preset relationship table of voltage mutation trend and compensation voltage can be queried to determine the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels.
[0100] In one embodiment, the compensation voltage corresponds to a preset trend value range, that is, one trend value range can correspond to one compensation voltage. Determining the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels according to the voltage mutation trend value may include: determining the trend value range to which the voltage mutation trend value belongs; determining the compensation voltage corresponding to the trend value range as the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels.
[0101] Exemplarily, after determining the voltage mutation trend value Si corresponding to the i-th row of sub-pixels, the trend value range corresponding to the voltage mutation trend value is determined according to the voltage mutation trend value. One trend value range can correspond to one compensation voltage. The compensation voltage corresponding to the trend value range is determined as the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels.
[0102] For example, the display panel has a resolution of 1920*1080, and the voltage mutation trend value Si of the sub-pixels in the i-th row satisfies -3*1920≤Si≤+3*1920. The large range of -3*1920≤Si≤+3*1920 can be divided into 16 sub-ranges, each increasing by 3*120, as shown in Table 1. When 0≤Si<3*120, no compensation is applied to the common electrode voltage of the sub-pixels in the i-th row; when 3*120≤Si<3*240, the compensation voltage can be -△V; with each increase in the value of Si, the compensation voltage decreases by △V until, when 3*1800≤Si≤3*1920, the compensation voltage reaches -15△V; when Si is less than 0, the compensation voltage value is reversed, as shown in Table 1.
[0103] Table 1 Relationship between trend value range and compensation voltage of each row of sub-pixels in a display panel with a resolution of 1920*1080
[0104]
[0105] In another embodiment, the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row is determined according to the voltage mutation trend value, including: determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value and a preset compensation relationship, the compensation relationship representing the correspondence between the compensation voltage and the voltage mutation trend value.
[0106] For example, a compensation equation can be preset, which represents the corresponding relationship between the compensation voltage and the voltage mutation trend value. By substituting the voltage mutation trend value into the compensation equation, the corresponding compensation voltage of the common electrode can be calculated. The compensation equation can be obtained based on experience, or by using a fitting method based on multiple sets of corresponding voltage mutation trend values and compensation voltages.
[0107] In one embodiment, the compensation voltage corresponds to a preset trend value range. When the voltage mutation trend value belongs to different trend value ranges, the compensation voltage and the voltage mutation trend value can satisfy different compensation relationships. For example, each trend value range corresponds to a compensation relationship. A target trend value range to which the voltage mutation trend value belongs is determined, and the compensation relationship corresponding to the target trend value range is used to obtain the compensation voltage corresponding to the voltage mutation trend value.
[0108] In step S40 , a corresponding first data voltage is provided to each sub-pixel in the i-th row of sub-pixels, and a compensation voltage is provided to the common electrode corresponding to the i-th row of sub-pixels to control the i-th row of sub-pixels to perform display.
[0109] For example, when the i-th row of sub-pixels is displaying, a corresponding first data voltage is provided to each sub-pixel in the i-th row via the data line, and a compensation voltage is provided to the common electrode corresponding to the i-th row of sub-pixels. Consequently, the voltage of the common electrode is the sum of the common voltage and the compensation voltage. This reduces the common electrode voltage offset caused by a sudden voltage change of the second data voltage relative to the first data voltage, and reduces the impact of the sudden voltage change on the common electrode voltage corresponding to the i-th row of sub-pixels. This ensures that the voltage difference between the pixel electrode and the common electrode of each sub-pixel in the i-th row meets a preset voltage difference. Consequently, during display, the brightness of each sub-pixel meets a preset brightness, avoiding crosstalk caused by uneven brightness.
[0110] Figure 5 This is a block diagram of the structure of a display control device in one embodiment of the present disclosure. Another embodiment of the present disclosure provides a display control device. The display control device is applied to a display panel, which includes M rows and N columns of sub-pixels, where the N columns of sub-pixels correspond one-to-one with N data lines. The display panel also includes M gate lines, which correspond one-to-one with the M rows of sub-pixels. The gate lines provide gate signals to the corresponding rows of sub-pixels, and the data lines provide data voltages to the corresponding sub-pixels.
[0111] like Figure 5 As shown, the display control device includes: an acquisition module 61, used to obtain a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels, wherein i is a natural number greater than or equal to 1 and less than M; a mutation trend determination module 62, used to determine the voltage mutation trend value corresponding to the i-th row of sub-pixels based on the first data voltage, the second data voltage and the mutation voltage threshold; a compensation voltage determination module 63, used to determine the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels based on the voltage mutation trend value; a display control module 64, used to provide the corresponding first data voltage to each sub-pixel in the i-th row of sub-pixels, and provide the compensation voltage to the common electrode corresponding to the i-th row of sub-pixels, so as to control the i-th row of sub-pixels to display.
[0112] In one embodiment, the mutation trend determination module may include: a first determination submodule, used to determine the voltage difference between the second data voltage and the first data voltage in each column of sub-pixels; a second determination submodule, used to determine the column mutation trend value corresponding to the i-th row sub-pixels in the corresponding column based on the voltage difference and the mutation voltage threshold; a third determination submodule, used to determine the voltage mutation trend value corresponding to the i-th row sub-pixels based on the column mutation trend value corresponding to the i-th row sub-pixels in each column, and the voltage mutation trend value is the sum of the column mutation trend values corresponding to the i-th row sub-pixels in each column.
[0113] In one embodiment, the second determination submodule is also used for at least one of the following: when the voltage difference is greater than or equal to the mutation voltage threshold and the first data voltage is less than the second data voltage, determining that the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is a first preset value; when the voltage difference is greater than or equal to the mutation voltage threshold and the first data voltage is greater than the second data voltage, determining that the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is a second preset value; when the voltage difference is less than the mutation voltage threshold, determining that the column mutation trend value corresponding to the sub-pixel in the i-th row in the corresponding column is a third preset value.
[0114] In one embodiment, the compensation voltage determination module is also used to query a preset relationship table between voltage mutation trends and compensation voltages to determine the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row. The relationship table between voltage mutation trends and compensation voltages includes the correspondence between the compensation voltages and the voltage mutation trend values.
[0115] In one embodiment, the compensation voltage determination module is further configured to determine the compensation voltage of the common electrode corresponding to the i-th row of sub-pixels based on the voltage mutation trend value and a preset compensation relationship, wherein the compensation relationship represents the correspondence between the compensation voltage and the voltage mutation trend value.
[0116] In one embodiment, the compensation voltage corresponds to a preset trend value range, and the compensation voltage determination module is further used to: determine the trend value range to which the voltage mutation trend value belongs; and determine the compensation voltage corresponding to the trend value range as the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row.
[0117] Figure 6 FIG. 1 is a schematic diagram showing the working process of a display control device in one embodiment of the present disclosure. Figure 6 As shown, a first data voltage and a second data voltage are obtained. For example, the first data voltage of the j-th column subpixel in the i-th row of subpixels and the second data voltage of the j-th column subpixel in the i+1-th row of subpixels are obtained. A determination is made as to whether the j-th column subpixel has undergone a mutation. In the case of a positive mutation, the column mutation trend value of the (j, i) subpixel is +1; in the case of a negative mutation, the column mutation trend value of the (j, i) subpixel is +1; and in the case of no mutation, the column mutation trend value of the (j, i) subpixel is 0. The sum of the column mutation trend values of the subpixels in the i-th row is calculated to obtain Si, and the compensation voltage of the common electrode is determined based on Si.
[0118] According to one embodiment of the present disclosure, the present disclosure further provides an electronic device. The electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the display control method of any embodiment of the present disclosure.
[0119] An embodiment of the present disclosure provides a display device, which includes a display panel and also includes the display control device in any embodiment of the present disclosure or the electronic device in any embodiment of the present disclosure.
[0120] The display panel includes M rows and N columns of sub-pixels, with the N columns of sub-pixels corresponding one-to-one with the N data lines. The display panel also includes M gate lines, with the M gate lines corresponding one-to-one with the M rows of sub-pixels. The gate lines provide gate signals to the sub-pixels in the corresponding rows, and the data lines provide data voltages to the corresponding sub-pixels. The display panel may include an LCD display panel.
[0121] The display device can be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or the like.
[0122] Figure 7 FIG. 4 is a structural block diagram of a display device in an embodiment of the present disclosure. Figure 7 An electronic device and a display panel are shown in FIG. Figure 7 As shown, the electronic device may include a processor CPU, and the data voltage information in the data drive module can be transmitted to the microcontroller unit MCU through the I / O port, and then transmitted to the CPU through the system bus, so that the CPU obtains the first data voltage and the second data voltage. The CPU calculates the voltage difference between the second data voltage and the first data voltage, and compares the voltage difference with the mutation voltage threshold to determine the column mutation trend value corresponding to each sub-pixel. The CPU calculates the sum of the column mutation trend values of each sub-pixel in each row to determine the voltage mutation trend value corresponding to the sub-pixels in the row. Then, based on the voltage mutation trend value corresponding to the sub-pixels in the row, the compensation voltage of the common electrode corresponding to the sub-pixels in the row is determined, and the compensation voltage is output.
[0123] It should be noted that in a display panel, the common electrode of each sub-pixel is connected to a common voltage signal. A voltage compensation circuit can be provided in the display panel, with a voltage compensation module corresponding to the common electrodes of each row of sub-pixels. The output compensation voltage can be provided to the voltage compensation module. Upon receiving the compensation voltage, the voltage compensation module applies the compensation voltage to the common electrode, so that the common electrode voltage is the sum of the common voltage and the compensation voltage.
[0124] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.
[0125] The program code for implementing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.
[0126] In the context of the present disclosure, a machine-readable medium can be a tangible medium that can contain or store a program for use by or in conjunction with an instruction execution system, device or equipment. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or equipment, or any suitable combination of the foregoing. A more specific example of a machine-readable storage medium can include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0127] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).
[0128] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer having a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), and the Internet.
[0129] A computer system may include a client and a server. The client and server are generally remote from each other and typically interact through a communication network. The client-server relationship arises through computer programs running on the respective computers and having a client-server relationship with each other. The server may be a cloud server, a server in a distributed system, or a server integrated with a blockchain.
[0130] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved. This is not a limitation herein.
[0131] The above specific embodiments do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure shall be included within the scope of protection of this disclosure.
Claims
1. A display control method, characterized in that: Applied to a display panel, the display panel includes M rows and N columns of sub-pixels, the N columns of sub-pixels correspond one-to-one to N data lines, and the method includes: Obtaining a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels, where i is a natural number greater than or equal to 1 and less than M; determining a voltage mutation trend value corresponding to the sub-pixels in the i-th row according to the first data voltage, the second data voltage, and a mutation voltage threshold; determining a compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value; The first data voltage is provided to each sub-pixel in the i-th row of sub-pixels, and the compensation voltage is provided to the common electrode corresponding to the sub-pixels in the i-th row, so as to control the sub-pixels in the i-th row to perform display.
2. The method according to claim 1, characterized in that Determining a voltage mutation trend value corresponding to the sub-pixels in the i-th row according to the first data voltage, the second data voltage, and a mutation voltage threshold includes: determining a voltage difference between the second data voltage and the first data voltage in each column of sub-pixels; Determining a column mutation trend value corresponding to the i-th row of sub-pixels in a corresponding column according to the voltage difference and the mutation voltage threshold; According to the column mutation trend value corresponding to the i-th row sub-pixels in each column, the voltage mutation trend value corresponding to the i-th row sub-pixels is determined, and the voltage mutation trend value is the sum of the column mutation trend values corresponding to the i-th row sub-pixels in each column.
3. The method according to claim 2, characterized in that Determining, according to the voltage difference and the mutation voltage threshold, a column mutation trend value corresponding to the i-th row of sub-pixels in the corresponding column, including at least one of the following: When the voltage difference is greater than or equal to the mutation voltage threshold and the first data voltage is less than the second data voltage, determining the column mutation trend value corresponding to the i-th row sub-pixel in the corresponding column to be a first preset value; When the voltage difference is greater than or equal to the mutation voltage threshold and the first data voltage is greater than the second data voltage, determining the column mutation trend value corresponding to the i-th row sub-pixel in the corresponding column to be a second preset value; When the voltage difference is less than the mutation voltage threshold, the column mutation trend value corresponding to the i-th row of sub-pixels in the corresponding column is determined to be a third preset value.
4. The method according to claim 1, wherein Determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value includes: The preset relationship table between voltage mutation trend and compensation voltage is queried to determine the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row, wherein the relationship table between voltage mutation trend and compensation voltage includes a correspondence between compensation voltage and voltage mutation trend value.
5. The method according to claim 1, wherein Determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value includes: The compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row is determined according to the voltage mutation trend value and a preset compensation relationship, wherein the compensation relationship represents the corresponding relationship between the compensation voltage and the voltage mutation trend value.
6. The method according to claim 1, characterized in that The compensation voltage corresponds to a preset trend value range, and determining the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value includes: Determining a trend value range to which the voltage mutation trend value belongs; The compensation voltage corresponding to the trend value range is determined as the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row.
7. The method according to claim 1, characterized in that The sudden voltage threshold is greater than or equal to the voltage sudden change value corresponding to the sudden 64 gray scale.
8. The method according to claim 3, characterized in that The first preset value is +1; the second preset value is -1; and the third preset value is 0.
9. A display control device, characterized in that: Applied to a display panel, the display panel includes M rows and N columns of sub-pixels, the N columns of sub-pixels correspond one-to-one to N data lines, and the device includes: an acquisition module, configured to acquire a first data voltage pre-provided to each sub-pixel in the i-th row of sub-pixels and a second data voltage pre-provided to each sub-pixel in the i+1-th row of sub-pixels, wherein i is a natural number greater than or equal to 1 and less than M; a mutation trend determining module, configured to determine a voltage mutation trend value corresponding to the sub-pixels in the i-th row according to the first data voltage, the second data voltage, and a mutation voltage threshold; a compensation voltage determination module, configured to determine the compensation voltage of the common electrode corresponding to the sub-pixels in the i-th row according to the voltage mutation trend value; The display control module is configured to provide the first data voltage to each sub-pixel in the i-th row of sub-pixels, and provide the compensation voltage to the common electrode corresponding to the i-th row of sub-pixels, so as to control the i-th row of sub-pixels to display.
10. An electronic device comprising: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 8.
11. A display device, characterized in that: The electronic device comprises a display panel and the display control device according to claim 9 or the electronic device according to claim 10, wherein the display panel comprises M rows and N columns of sub-pixels, and the N columns of sub-pixels correspond one-to-one to the N data lines.
Citation Information
Patent Citations
Voltage compensation circuit and method thereof, display driving circuit, and a display device
CN109616067A
Common voltage compensation method and liquid crystal display device
CN113284470A