Method for improving display picture horizontal crosstalk and display control device

Abstract

The application discloses a display picture horizontal crosstalk improvement method and a display control device. The display picture horizontal crosstalk improvement method comprises the following steps: identifying a display area of a two-color display picture; wherein the two-color display picture only comprises background sub-pixels displaying a first gray scale and display sub-pixels displaying a second gray scale; judging whether an abnormal display exists in the display area; if yes, determining repeatedly appearing display units in the two-color display picture, and adjusting at least one display unit of adjacent two display units, so that the positive and negative polarities of all the background sub-pixels in the adjacent two display units are symmetrical. Through the method, the display effect of the two-color display picture is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of display technology, in particular to a display picture horizontal crosstalk improvement method and display control device. BACKGROUND

[0002] A big advantage of liquid crystal television compared with traditional CRT and plasma is power saving. Liquid crystal has only half the power consumption of the same size CRT, and is much lower than plasma. Liquid crystal television is much lighter than the traditional display of the same display area. The weight of liquid crystal television is about 1 / 3 of the traditional television. Therefore, liquid crystal display is also called cold display or environmental display. At present, LCD display develops towards higher resolution, higher display quality and larger size.

[0003] Because the charging and discharging of liquid crystal is the architecture of capacitor, if DC circuit is used for driving, then the residual charge will be generated at both ends of the capacitor, which will cause residual image on the display. In order to avoid this phenomenon, DC is changed to AC. This change is reflected in the polarity inversion. Among them, "+" is the voltage level compared with VCOM, that is, "+" is the positive polarity when it is higher than VCOM, and "-" is the negative polarity when it is lower than VCOM.

[0004] VCOM is easily disturbed by data line. When displaying, all data lines with positive and negative polarity in a row superimpose the influence on VCOM. If it is "+", the VCOM voltage will jitter upwards, and if it is "-", the VCOM voltage will jitter downwards. This jitter will cause the screen to display bright or dark, and crosstalk will easily occur, thereby affecting the actual display of the picture and causing poor quality. SUMMARY

[0005] The technical problem solved by the present application is to provide a display picture horizontal crosstalk improvement method and display control device, which solves the problem of horizontal crosstalk of double-color display picture and improves the display effect of double-color display picture.

[0006] To solve the above problems, the first aspect of the present application provides a display picture horizontal crosstalk improvement method, which comprises: identifying whether there is a repeatedly appearing display unit in the display area of a double-color display picture; wherein the double-color display picture only includes background sub-pixels displaying a first gray scale and display sub-pixels displaying a second gray scale; if yes, judging whether display abnormality occurs in the display area; and if yes, adjusting at least one of the two adjacent display units, so that the positive and negative polarities of all background sub-pixels in the two adjacent display units are symmetrical in the row direction.

[0007] In a specific embodiment, the first gray scale is greater than the second gray scale, and the second gray scale is 0 gray scale.

[0008] In one specific embodiment, the step of adjusting at least one of two adjacent display units includes: increasing the pixel adjustment of each display unit along the row direction so that the polarity of all sub-pixels displaying the first gray level in the two adjacent display units is symmetrical.

[0009] In one specific embodiment, the step of increasing the number of pixels in each display unit along the row direction includes: adding an odd number of background pixels in each display unit so that the polarity of all background sub-pixels displaying the first gray level in two adjacent display units is symmetrical in the row direction; wherein, the background pixel includes three background sub-pixels.

[0010] In one specific embodiment, the step of adjusting at least one of the two adjacent display units includes: moving and adjusting one of the two adjacent display units along the row direction so that the polarity of each sub-pixel in the two adjacent display units is symmetrical in the row direction.

[0011] In one specific embodiment, the step of moving and adjusting one of the two adjacent display units along the row direction includes: moving the display pixels in an odd or even number of display units by an odd number of background sub-pixels along the row direction so that the positive and negative polarities of the background sub-pixels in the two adjacent display units are symmetrical in the row direction; wherein each display pixel includes three display sub-pixels.

[0012] In one specific embodiment, the step of identifying whether there are repeating display units in the display area of ​​the dual-color display screen includes: identifying whether the display screen is the dual-color display screen; the dual-color display screen only includes background sub-pixels displaying the first gray level and display sub-pixels displaying the second gray level; if so, then determining the display area where the dual-color display screen appears, and determining whether there are repeating display units in the dual-color display screen.

[0013] In one specific embodiment, the step of determining whether a display abnormality occurs within the display area includes: determining whether the positive and negative polarities of all the background sub-pixels within the display area are symmetrical; if they are asymmetrical, determining whether the sum of the positive and negative polarities of all the background sub-pixels within the display area is greater than a set value; if yes, determining that a display abnormality occurs in the display area; if no, determining that no display abnormality occurs in the display area.

[0014] The step of determining whether a display abnormality occurs within the display area includes: determining whether the positive and negative polarities of all background sub-pixels within each display unit are symmetrical; if they are asymmetrical, further determining whether the number of display units within the display area has reached a set number; if so, determining that a display abnormality has occurred in the display area.

[0015] To address the aforementioned issues, a second aspect of this application provides a display control device, comprising: an identification module for identifying whether a display unit appears repeatedly in a display area of ​​a dual-color display screen; a discrimination module for determining whether a display abnormality occurs in the display area; and an adjustment module for adjusting at least one of two adjacent display units to make the positive and negative polarities of all background sub-pixels in the two adjacent display units symmetrical in the row direction.

[0016] The beneficial effects of this application are: by determining the display area of ​​the dual-color display screen and determining whether the dual-color display screen within the display area is abnormal, when the display is abnormal, the positive and negative polarities of all background sub-pixels in each of the two adjacent display units can be adjusted to achieve symmetry, thereby reducing the offset effect of the repeated display units on the common voltage VCOM, effectively improving the horizontal crosstalk problem and improving the display screen. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic flowchart of an embodiment of the method for improving horizontal crosstalk in the display screen according to this application;

[0019] Figure 2 This is a schematic diagram of the structure of a specific embodiment of the dual-color display screen of this application;

[0020] Figure 3 This is a schematic diagram of the structure of the first specific embodiment of the dual-color display screen of this application;

[0021] Figure 4 This is a schematic diagram of the structure of the second specific embodiment of the dual-color display screen of this application;

[0022] Figure 5 This is a schematic diagram of the framework of an embodiment of the display control device of this application.

[0023] 100 Display unit; 10 Background pixel; 11 Background sub-pixel; 50 Display control device; 51 Recognition module; 52 Judgment module; 53 Adjustment module. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The singular forms “a,” “said,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms, unless otherwise clearly indicated above. “Multiple” generally includes at least two, but does not exclude the inclusion of at least one.

[0026] It should be understood that the term "and / or" used herein is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0027] It should be understood that the terms "comprising," "including," or any other variations used herein are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in every place in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] This application provides a method for improving horizontal crosstalk in display screens. For details, please refer to... Figure 1 , Figure 1 This is a schematic flowchart illustrating an embodiment of a method for improving horizontal crosstalk in the display screen according to this application. Figure 1 As shown, the method includes:

[0031] Step S11: Identify whether there are repeating display units in the display area of ​​the dual-color display screen.

[0032] A dual-color display refers to a display screen that shows two colors. Specifically, it includes background pixels displaying the background color and display pixels displaying the display color. Each background pixel and each display pixel includes three background sub-pixels and three display sub-pixels. The background sub-pixels display a first grayscale level, and the display sub-pixels display a second grayscale level. In one specific embodiment, the first grayscale level is 255, and the second grayscale level is 0. That is, the display grayscale level of the background sub-pixels is 255, and the display grayscale level of the display sub-pixels is 0. The display pixels are displayed as black, and the background pixels are displayed as white. In another specific embodiment, the first grayscale level can be a display grayscale level greater than a certain grayscale level, and the second grayscale level can be a display grayscale level less than a certain grayscale level. The first grayscale levels of the three background sub-pixels can be different, in which case the background pixels are displayed in color. Similarly, the second grayscale levels of the three display sub-pixels can also be different, in which case the display pixels are also displayed in color. In this case, the background pixels and display pixels display two different colors.

[0033] This step S11 specifically includes: identifying whether the displayed screen is a dual-color display screen; if so, further determining the display area where the dual-color display screen appears and whether there are repeated display units in the dual-color display screen; if it is not a dual-color display screen, then no identification is made. If it is determined that there are repeated display units in the dual-color display screen, then step S12 is further executed; if not, no adjustment is made, or adjustment is made in other ways, which is not limited here.

[0034] The dual-color display screen only includes background sub-pixels displaying the first grayscale level and display sub-pixels displaying the second grayscale level. It should be noted that each pixel includes three RGB sub-pixels. Three adjacent background sub-pixels (RGB) combine to form a background pixel, used to display the "background color." Three adjacent display sub-pixels (RGB) combine to form a display pixel, used to display the "display color."

[0035] In this embodiment, the first gray level is greater than the second gray level. When the first gray level is asymmetrical within the display area, it has a greater impact on the voltage of the common voltage VCOM. Adjusting the sub-pixels displaying the first gray level can effectively improve the display image. When the second gray level is greater than the first gray level, adjusting the second gray level is more effective.

[0036] It should be noted that, in this embodiment, symmetry means that the number of positive polarity sub-pixels displaying the first gray level is equal to the number of negative polarity sub-pixels displaying the first gray level, that is, the positive and negative polarities are balanced. In this way, the influence of the background sub-pixels displaying the first gray level on the common voltage VCOM can cancel each other out.

[0037] In a preferred embodiment, the second grayscale is preferably 0 grayscale, and the displayed color is black. This way, only the crosstalk problem of the first grayscale to the displayed image needs to be considered.

[0038] In one specific embodiment, the dual-color display screen displays strings, with the display unit being a character, taking the character "H" as an example. Further details can be found in the following documentation. Figure 2 , Figure 2 This is a schematic diagram of the structure of a specific embodiment of the dual-color display screen of this application. Figure 2 As shown, the dual-color display screen includes background sub-pixels displaying the first grayscale level. These background sub-pixels include RGB sub-pixels, and the combination of three background sub-pixels displays the background color. It also includes display sub-pixels displaying the second grayscale level. These display sub-pixels also consist of three pixels, and the combination of these three displays the "display color." The display color is black, and the background color is white, but it can also be other colors. For example... Figure 2 As shown, the black portion represents the display effect of the "H" string on the screen. Because the black portion has negligible impact on VCOM, it doesn't need to be calculated when calculating crosstalk; only the bright portion needs to be calculated. If the subpixel display is a dot inversion, taking the first subpixel as a positive polarity "+" as an example, the total polarity of the background subpixels displaying the first grayscale in the first row is (4+2-)×2, where 2 is the number of "H" characters. Figure 2 As shown, there are two "H" characters. The second row displays the total polarity of the background sub-pixels of the first grayscale level, which is (8+10-)×2. Display unit 100 is a display unit for one "H" character, as shown... Figure 2 As shown in the dashed box. Figure 2For a standard dual-color display, such as Figure 2 As shown, without adjusting the display unit, due to the asymmetry of the positive and negative polarities of the background sub-pixels in each character display unit, each character will accumulate 2 positive polarities or 2 negative polarities. When the string reaches a certain number, the accumulated positive or negative polarities will further accumulate, thereby aggravating the VCOM shift towards "+" or "-", thus aggravating the horizontal crosstalk of the display screen.

[0039] In other embodiments, the dual-color display screen can also be a QR code graphic; the dual-color display screen is not limited here.

[0040] Preferably, the multiple display units in the dual-color display screen are arranged in an array along the row direction. The dual-color display screen includes column reversal, dot reversal, and 1+2 line reversal, etc.

[0041] Step S12: Determine whether there is a display abnormality in the display area.

[0042] If yes, proceed to step S13; otherwise, do not make any adjustments.

[0043] In one specific embodiment, this step specifically includes: determining whether the positive and negative polarities of all background sub-pixels displaying the first grayscale level within the display area are symmetrical. That is, whether the number of positive background sub-pixels and negative background sub-pixels are equal. If not or asymmetrical, then further determine whether the sum of the positive and negative polarities of all background sub-pixels within the display area is greater than a set value. If yes / greater, then it is determined that a display abnormality has occurred in the display area; if not, then no display abnormality has occurred in the display area, that is, the display is normal. The set value can be set based on experience. In one specific embodiment, the sum of the number of background sub-pixels displaying positive polarity and the number of background sub-pixels displaying negative polarity can also be calculated to determine whether the sum of the number of positive and negative background sub-pixels is too large, which may easily lead to display crosstalk. Specifically, this includes: setting the count of background sub-pixels displaying the first grayscale level as +1, the count of background sub-pixels displaying the first grayscale level as -1, and the grayscale count of display sub-pixels displaying the second grayscale level as 0. The setting value can be ±50. When the difference in the number of background sub-pixels displaying positive and negative polarities is greater than 50, it is determined that display abnormalities are likely to occur. The first gray level is ±255 gray levels, and the setting value can also be ±50×255, which also indicates that when the difference in the number of background sub-pixels displaying positive and negative polarities is greater than 50, display abnormalities are determined to occur. In other embodiments, other determination methods can also be used.

[0044] In another specific implementation, step S12 further includes: determining whether the positive and negative polarities of the background sub-pixels in a single display unit are symmetrical; if they are asymmetrical, further determining whether the number of display units that appear repeatedly in the display area of ​​the dual-color display screen reaches a certain set number; if so, determining that the display area is prone to display abnormalities. This is because the display units appear repeatedly, and the unbalanced polarities in each display unit will accumulate. When a certain value is reached, the VCOM of the entire display area will deviate too much from the normal value, and display abnormalities will occur.

[0045] Step S13: Adjust at least one of the two adjacent display units so that the positive and negative polarities of all background sub-pixels in the two adjacent display units are symmetrical in the row direction.

[0046] The recurring display unit includes a repeating pattern formed by background subpixels and display subpixels. For example, the display unit listed in the example above is an "H" character, and the display area includes the area displaying consecutive "H" strings.

[0047] In a first specific embodiment, each display unit is adjusted. Specifically, each display unit is adjusted by increasing sub-pixels along the row direction so that the polarity of all sub-pixels displaying the first grayscale in two adjacent display units is symmetrical.

[0048] In a preferred embodiment, a background pixel is added before each display unit. This background pixel comprises three background sub-pixels (RGB). See details in [link to relevant documentation]. Figure 3 , Figure 3 This is a schematic diagram of the structure of the first specific embodiment of the dual-color display screen of this application. For example... Figure 3 As shown, a background pixel of 10 is added before each display unit, which means three background sub-pixels (RGB) are added to display the first grayscale level. As can be seen from the figure, the positive and negative polarities of each row are balanced. Since the display of the string "H" itself does not change, and there is only a background pixel in between, it will not affect the user's viewing experience.

[0049] Adjustment Principle Analysis: Due to the asymmetry of polarity within each display unit, if the starting polarity of each display unit is the same, the severity of this asymmetry is amplified as the display cycle increases. The root cause is that the number of pixels within a cycle (within a row) is even (the polarity also cycles once between two pixels), thus the polarity is repeated with each cycle. If polarity asymmetry occurs within a cycle, the polarity asymmetry will be replicated in the next cycle (because the starting polarity is the same, the cycle is the same, and the result is consistent). Current display technologies use three sub-pixels to form one pixel. Therefore, the difference in polarity will result in a cycle between two consecutive pixels (for example, the R in two pixels will be + and - in one). Therefore, a background pixel (three background sub-pixels of the first grayscale) is added in each cycle, along with the original even-numbered background pixels. By adding a background pixel to each cycle of display units, the cycle becomes an odd number of background pixels. The polarity starting point of the second cycle is not the same as that of the first cycle. The "±" polarity will be balanced in the two cycles (for example, if the first cycle has 9 positive polarity "+", then the second cycle must have 9 negative polarity "-"), thereby improving the asymmetry problem and completely eliminating the asymmetry of the positive and negative polarity of the string.

[0050] In this embodiment, a background pixel is added before each display unit. In other embodiments, a background pixel may be added inside the display unit or at the end of each display unit. The location of the background pixel is not limited here.

[0051] Furthermore, in other embodiments, an odd number of background pixels 10 can be added before each display unit, so that the number of background pixels in each display unit is odd, and the background pixels in adjacent display units are superimposed to form an even number, thereby achieving symmetry, or balance, in the polarity of each background sub-pixel. However, if too many background pixels 10 are inserted between two display units, the spacing between the display units becomes too large, which may affect viewing. Therefore, it is preferable to insert only one background pixel.

[0052] In a second specific embodiment, only one of two adjacent display units may be adjusted. Specifically, this includes moving one of the display units along the row direction.

[0053] In a preferred embodiment, the display pixels in an odd-numbered or even-numbered display unit are moved one background sub-pixel along the row direction. Each display pixel comprises three display sub-pixels; moving the display pixel means moving at least three display sub-pixels together to ensure the displayed pattern remains unchanged. In other words, it involves moving the first or second display unit in two adjacent display units. Please refer to further details.Figure 4 , Figure 4 This is a schematic diagram of the structure of a second specific embodiment of the dual-color display screen of this application. For example... Figure 4 As shown, the display pixels in the odd-numbered display units are moved one background sub-pixel 11 along the row direction. That is, the 1st, 3rd, 5th, etc., display pixels are moved one background sub-pixel 11 along the row direction. In other embodiments, even-numbered display pixels can also be moved one background sub-pixel 11 along the row direction. The display pixels are... Figure 4 The black "H" character in the center is moved one background sub-pixel in the direction of the background pixels (three background sub-pixels). Specifically, it can be done as follows: Figure 4 As shown, moving one subpixel forward along the row direction can also mean moving one subpixel backward along the row direction. In other words, the first display pixel in two adjacent display units moves one background subpixel away from the second display pixel along the row direction, or moves one background subpixel closer to the second display pixel, while the second display pixel remains unchanged. Further, it's also possible to move the second display pixel in two adjacent display units along the row direction. Specifically, the second display pixel in two adjacent display units is moved one background subpixel closer to the first display pixel, or it can be moved one background subpixel away from the first display pixel, while the first display pixel remains unchanged; this is not limited here. Figure 4 As shown, in the moved display screen, the sum of the positive and negative polarities of the background sub-pixels 11 in two adjacent display units 100 is zero. The polarity of the first row is 0, the polarity of the second row is also 0, and the polarity of the third row is also 0. Therefore, it can be seen from the figure that the positive and negative polarities of two adjacent display units 100 are symmetrical (also known as balanced), which can effectively improve the display effect and reduce horizontal crosstalk. In this embodiment, the polarity of each row is balanced, and because each background sub-pixel has two other sub-pixels adjacent to it, there will not be much abnormality in color.

[0054] In a further embodiment, the display pixels in the display unit can be moved an odd number of background sub-pixels along the row direction. Specifically, moving three background sub-pixels produces the display effect of moving one background pixel, similar to the display effect of adding one background pixel in the first embodiment. It should be noted that when the left and right sides of the repeating display unit are separated by one background pixel, only one background sub-pixel can be moved. Moving three background sub-pixels can easily cause overlap with the head and tail of another adjacent display unit. Therefore, adding a background pixel before the moved display unit, that is, combining the first and second embodiments, is not limited to adding an odd number of background pixels; an even number of background pixels can also be added. Adding background pixels before or after the display unit, and then moving the display pixels in the display unit in the direction of the background pixel by at least an odd number of background sub-pixels, is sufficient. Therefore, when the spacing between two adjacent display pixels is not limited to setting one background pixel, it can be adjusted by moving an odd number of background sub-pixels.

[0055] This application also provides a display control device, please refer to the details. Figure 5 , Figure 5 This is a schematic diagram of a framework of an embodiment of the display control device of this application. The display control device is used to control the display grayscale and polarity of each sub-pixel (including background sub-pixels and display sub-pixels) within the display area to achieve a dual-color display screen. Figure 5 As shown, the display control device 50 includes:

[0056] The identification module 51 is used to identify whether there are repeating display units in the display area of ​​the dual-color display screen. Specifically, it includes: identifying whether a dual-color display screen appears in the display screen; if so, further identifying the display area of ​​the dual-color display screen and identifying whether there are repeating display units in the display area.

[0057] The discrimination module 52 is used to determine whether a display abnormality has occurred in the display area. Specifically, it calculates whether the positive and negative polarities of the background sub-pixels of each display first gray level in the display area are balanced. If not, it further determines whether the difference between the positive and negative polarities is too large. If it reaches an abnormal value, it determines that a display abnormality has occurred in the display area.

[0058] The system can also determine whether the positive and negative polarities of the background sub-pixels in each display unit are balanced. If they are unbalanced, it can further determine whether the number of repeating display units in the dual-color display has reached a set value. If so, a display anomaly is identified. In this embodiment, since the display units are repeated, the unbalanced polarities in each display unit will accumulate, and when they reach a certain value, a display anomaly will occur. The set value can be determined based on experience.

[0059] In other embodiments, identification can also be performed using the human eye, but this method is less efficient.

[0060] The adjustment module 53 is used to adjust at least one of two adjacent display units to make the positive and negative polarities of all background sub-pixels in the two adjacent display units symmetrical. Specific adjustments include movement adjustments and background sub-pixel addition adjustments. Specifically, this includes adding one or an odd number of background pixels before each display unit, or moving display pixels in an odd or even number of display units along the row direction by one or an odd number of background sub-pixels, as described in the above method embodiments.

[0061] The above modules are interconnected by signals.

[0062] The beneficial effects of this application are: by determining the display area of ​​the dual-color display screen and determining whether the dual-color display screen within the display area is abnormal, when the display is abnormal, the positive and negative polarities of all background sub-pixels in each of the two adjacent display units can be adjusted to achieve symmetry, thereby reducing the offset effect of the repeated display units on the common voltage VCOM, and effectively improving the display screen.

[0063] The above are merely embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method for improving horizontal crosstalk in a display screen, characterized in that, The improvement method includes: The system identifies whether there are repeating display units in the display area of ​​a dual-color display screen; wherein, the dual-color display screen only includes background sub-pixels displaying the first gray level and display sub-pixels displaying the second gray level; the repeating display units include a repeating pattern formed by the background sub-pixels and the display sub-pixels; If so, determine whether a display abnormality has occurred within the display area; If so, at least one of the two adjacent display units is adjusted so that the positive and negative polarities of all background sub-pixels in the two adjacent display units are symmetrical in the row direction.

2. The method for improving horizontal crosstalk in a display screen according to claim 1, characterized in that, The first gray level is greater than the second gray level, wherein the second gray level is 0 gray level.

3. The method for improving horizontal crosstalk in a display screen according to claim 2, characterized in that, The step of adjusting at least one of two adjacent display units includes: Each display unit is adjusted by increasing pixels along the row direction so that the polarity of all sub-pixels displaying the first gray level in two adjacent display units is symmetrical.

4. The method for improving horizontal crosstalk in a display screen according to claim 3, characterized in that, The step of increasing the number of pixels in each of the display units along the row direction includes: An odd number of background pixels are added to each of the display units so that the polarity of all background sub-pixels displaying the first gray level in two adjacent display units is symmetrical in the row direction; wherein, the background pixel includes three background sub-pixels.

5. The method for improving horizontal crosstalk in a display screen according to claim 2, characterized in that, The step of adjusting at least one of two adjacent display units includes: One of the two adjacent display units is moved and adjusted along the row direction so that the polarity of each sub-pixel in the two adjacent display units is symmetrical in the row direction.

6. The method for improving horizontal crosstalk in a display screen according to claim 5, characterized in that, The step of moving and adjusting one of the two adjacent display units along the row direction includes: The display pixels in the odd or even number of display units are moved by an odd number of background sub-pixels along the row direction so that the positive and negative polarities of the background sub-pixels in two adjacent display units are symmetrical in the row direction; wherein each display pixel includes three display sub-pixels.

7. The method for improving horizontal crosstalk in a display screen according to claim 1, characterized in that, The step of identifying whether there are repeating display units in the display area of ​​the dual-color display screen includes: Identify whether the displayed image is the dual-color display image; the dual-color display image only includes background sub-pixels displaying the first grayscale and display sub-pixels displaying the second grayscale; If so, then determine the display area where the dual-color display appears, and determine whether there are repeating display units in the dual-color display.

8. The method for improving horizontal crosstalk in a display screen according to claim 7, characterized in that, The step of determining whether a display abnormality occurs within the display area includes: Determine whether the positive and negative polarities of all the background sub-pixels within the display area are symmetrical; If asymmetric, determine whether the sum of the positive and negative polarities of all the background sub-pixels in the display area is greater than a set value; If so, then it is determined that a display abnormality has occurred in the display area; If not, then it is determined that there is no display abnormality in the display area.

9. The method for improving horizontal crosstalk in a display screen according to claim 1, characterized in that, The step of determining whether a display abnormality occurs within the display area includes: Determine whether the positive and negative polarities of all background sub-pixels within each display unit are symmetrical; If asymmetry is found, it is further determined whether the number of display units within the display area has reached the set number. If so, then it is determined that the display area has a display abnormality.

10. A display control device for displaying images, characterized in that, The display control device includes: The identification module is used to identify whether there are repeating display units in the display area of ​​the dual-color display screen; wherein, the dual-color display screen only includes background sub-pixels displaying the first gray level and display sub-pixels displaying the second gray level; the repeating display units include a repeating pattern formed by the background sub-pixels and the display sub-pixels; The discrimination module is used to determine whether a display abnormality occurs in the display area; An adjustment module is used to adjust at least one of two adjacent display units so that the positive and negative polarities of all background sub-pixels in the two adjacent display units are symmetrical in the row direction.

Images