Driving method of display substrate, display substrate and storage medium

Abstract

The embodiment of the invention provides a display substrate driving method, a display substrate and a storage medium, which are applied to the technical field of display substrates, and the method comprises the following steps: when the refresh rate of the display substrate is less than a preset frequency threshold, obtaining configuration information stored in a register; generating a driving signal according to the configuration information; and driving the shadow elimination area and / or the display area through the driving signal. The configuration information stored in the register is acquired, the source signal or the data signal of the specified voltage is generated according to the configuration information, the shadow elimination area is driven according to the source signal, and / or the specified row of the display area is driven according to the data signal, so that the coupling voltage difference is reduced, and the display effect is improved. The problem that vertical moire similar to crosstalk appears at the low refresh rate is solved, and the display effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of display substrates, and in particular to a display substrate driving method, a display substrate and a storage medium. Background Art

[0002] Since AMOLED (Active-matrix organic light-emitting diode) has a more realistic picture quality experience, more and more mobile phone products are using AMOLED screens. At the same time, with the introduction of LTPO (Low Temperature Polycrystalline Oxide, a screen technology), AMOLED has also found more applications, such as low-frequency drive. When using low-frequency drive, the frequency can be as low as 1hz, and the power consumption can also be greatly reduced, from 400mW (milliwatts) to 100mW.

[0003] As the power consumption of 1 Hz decreases, mobile phones have developed more 1 Hz application scenarios, which has extended the standby time of mobile phones, but at the same time, problems with poor visual effects have also emerged. For example, a vertical mura problem similar to crosstalk will occur at low refresh rates, which greatly affects the display effect of the screen and the user experience. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a display substrate driving method, a display substrate and a storage medium, so as to alleviate the problem of vertical moire similar to crosstalk occurring at low refresh rates. The specific technical solution is as follows:

[0005] In a first aspect of an embodiment of the present application, a method for driving a display substrate is first provided, wherein the display substrate comprises an image elimination area and a display area, and the method comprises:

[0006] When the refresh rate of the display substrate is less than a preset frequency threshold, acquiring configuration information stored in the register;

[0007] generating a driving signal according to the configuration information;

[0008] The shadow elimination area and / or the display area are driven by the driving signal.

[0009] In a possible implementation manner, the configuration information includes one or more voltage values, and the driving signal is a source signal of a specified voltage value;

[0010] The step of driving the shadow elimination area by the driving signal comprises:

[0011] At least one row in the shadow elimination area of ​​the display substrate is driven by the source signal of the specified voltage value.

[0012] In a possible implementation manner, the driving of at least one row in the shadow elimination area of ​​the display substrate by the source signal of the specified voltage value includes:

[0013] The entire image elimination area of ​​the display substrate is driven according to the source signal of the specified voltage value.

[0014] In a possible implementation manner, the shadow elimination area includes a plurality of sub-areas, and each sub-area includes at least one row;

[0015] The generating a driving signal according to the configuration information comprises:

[0016] Generate one or more groups of source signals according to the configuration information, wherein each group of source signals corresponds to a voltage value;

[0017] The step of driving at least one row in the shadow elimination area of ​​the display substrate by using the source signal of the specified voltage value comprises:

[0018] Each sub-region is driven according to each group of source signals in the one or more groups of source signals, wherein each group of source signals is used to drive one sub-region, and the number of the multiple sub-regions is greater than or equal to the number of voltage values ​​included in the configuration information.

[0019] In a possible implementation manner, driving each sub-region according to each source signal in the one or more groups of source signals includes:

[0020] The first sub-region is driven according to a first source signal, wherein the one or more voltage values ​​are a voltage value, the one or more groups of source signals are a group of source signals, the group of source signals is the first source signal, the multiple sub-regions include a first sub-region and a second sub-region, the number of rows in the first sub-region is a, the number of rows in the second sub-region is b, a and b are both integers greater than or equal to 1 and less than the total number of rows in the elimination zone, and the sum of a and b is equal to the total number of rows in the elimination zone.

[0021] In a possible implementation manner, driving each sub-region according to each source signal in the one or more groups of source signals includes:

[0022] The third sub-region is driven according to the second source signal, and the fourth sub-region is driven according to the third source signal, wherein the one or more voltage values ​​include two voltage values, the one or more groups of source signals include a second source signal and a third source signal, the multiple sub-regions include a third sub-region and a fourth sub-region, the number of rows of the third sub-region is c, the number of rows of the fourth sub-region is d, c and d are both integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of c and d is equal to the total number of rows of the elimination zone.

[0023] In a possible implementation manner, driving each sub-region according to each source signal in the one or more groups of source signals includes:

[0024] The fifth sub-region is driven according to the fourth source signal, and the sixth sub-region is driven according to the fifth source signal, wherein the one or more voltage values ​​are two voltage values, the one or more groups of source signals include a fourth source signal and a fifth source signal, the multiple sub-regions include a fifth sub-region, a sixth sub-region and a seventh sub-region, the number of rows of the fifth sub-region is e, the number of rows of the sixth sub-region is f, the number of rows of the seventh sub-region is g, e, f, g are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of e, f, g is equal to the total number of rows of the elimination zone.

[0025] In a possible implementation manner, driving each sub-region according to each source signal in the one or more groups of source signals includes:

[0026] The eighth sub-region is driven according to the sixth source signal, the ninth sub-region is driven according to the seventh source signal, and the tenth sub-region is driven according to the eighth source signal, wherein the one or more voltage values ​​are three voltage values, the one or more groups of source signals include the sixth source signal, the seventh source signal and the eighth source signal, the multiple sub-regions include the eighth sub-region, the ninth sub-region and the tenth sub-region, the number of rows of the eighth sub-region is h, the number of rows of the ninth sub-region is i, and the number of rows of the tenth sub-region is j, h, i, and j are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of h, i, and j is equal to the total number of rows of the elimination zone.

[0027] In a possible implementation manner, the one or more voltage values ​​are one or more of a positive level AVDD of an analog power supply, an analog power supply voltage VCI, a power supply low level voltage GND, a high resistance state voltage HIZ, and any gray scale voltage.

[0028] In a possible implementation, when the refresh rate of the display substrate is less than a preset frequency threshold, acquiring the configuration information stored in the register includes:

[0029] When the refresh rate of the display substrate is less than a preset frequency threshold, acquiring configuration information corresponding to each sub-region from the register according to the register address corresponding to each sub-region;

[0030] The generating one or more groups of source signals according to the configuration information comprises:

[0031] The one or more groups of source signals are generated according to the configuration information corresponding to each sub-area.

[0032] In a possible implementation manner, the configuration information includes row number information corresponding to each sub-region of the multiple sub-regions and a specified voltage corresponding to each sub-region.

[0033] In a possible implementation manner, generating a driving signal according to the configuration information includes:

[0034] generating a data signal according to the configuration information;

[0035] The step of driving the display area by using the driving signal comprises:

[0036] At least one target row at the top and / or the bottom of the display area is driven by the data signal.

[0037] In a possible implementation manner, driving at least one target row at the top and / or bottom of the display area by using the data signal includes:

[0038] The topmost row of pixels and / or the bottommost row of pixels in the display area are driven by the data signal so that each pixel therein displays a specified grayscale, wherein the grayscale of the specified grayscale is less than a preset grayscale threshold.

[0039] According to a second aspect of the embodiments of the present application, a display substrate is provided, wherein the display substrate comprises an image elimination area, a display area and a driving module;

[0040] The driving module is used to obtain the configuration information stored in the register when the refresh rate of the display substrate is less than a preset frequency threshold; generate a driving signal according to the configuration information; and drive the shadow elimination area and / or the display area through the driving signal.

[0041] In a possible implementation manner, the configuration information includes one or more voltage values, and the driving signal is a source signal of a specified voltage value;

[0042] The driving module is specifically used to drive at least one row in the shadow elimination area of ​​the display substrate through the source signal of the specified voltage value.

[0043] In a possible implementation manner, the driving module is specifically configured to drive the entire shadow elimination area of ​​the display substrate according to the source signal of the specified voltage value.

[0044] In a possible implementation manner, the shadow elimination area includes a plurality of sub-areas, and each sub-area includes at least one row;

[0045] The driving module is specifically used to generate one or more groups of source signals according to the configuration information, wherein each group of source signals corresponds to a voltage value; and drive each sub-area according to each group of source signals in the one or more groups of source signals, wherein each group of source signals is used to drive a sub-area, and the number of the multiple sub-areas is greater than or equal to the number of voltage values ​​included in the configuration information.

[0046] In a possible embodiment, the driving module is specifically used to drive the first sub-area according to a first source signal, wherein the one or more voltage values ​​are a voltage value, the one or more groups of source signals are a group of source signals, the group of source signals is the first source signal, the multiple sub-areas include a first sub-area and a second sub-area, the number of rows of the first sub-area is a, the number of rows of the second sub-area is b, a and b are both integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of a and b is equal to the total number of rows of the elimination zone.

[0047] In a possible embodiment, the driving module is specifically used to drive the third sub-region according to the second source signal, and to drive the fourth sub-region according to the third source signal, wherein the one or more voltage values ​​include two voltage values, the one or more groups of source signals include a second source signal and a third source signal, the multiple sub-regions include a third sub-region and a fourth sub-region, the number of rows of the third sub-region is c, the number of rows of the fourth sub-region is d, c and d are both integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of c and d is equal to the total number of rows of the elimination zone.

[0048] In a possible embodiment, the driving module is specifically used to drive the fifth sub-region according to a fourth source signal, and to drive the sixth sub-region according to a fifth source signal, wherein the one or more voltage values ​​are two voltage values, the one or more groups of source signals include a fourth source signal and a fifth source signal, the multiple sub-regions include a fifth sub-region, a sixth sub-region and a seventh sub-region, the number of rows of the fifth sub-region is e, the number of rows of the sixth sub-region is f, and the number of rows of the seventh sub-region is g, e, f, and g are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of e, f, and g is equal to the total number of rows of the elimination zone.

[0049] In a possible embodiment, the driving module is specifically used to drive the eighth sub-region according to the sixth source signal, drive the ninth sub-region according to the seventh source signal, and drive the tenth sub-region according to the eighth source signal, wherein the one or more voltage values ​​are three voltage values, the one or more groups of source signals include the sixth source signal, the seventh source signal and the eighth source signal, the multiple sub-regions include the eighth sub-region, the ninth sub-region and the tenth sub-region, the number of rows of the eighth sub-region is h, the number of rows of the ninth sub-region is i, and the number of rows of the tenth sub-region is j, h, i, and j are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of h, i, and j is equal to the total number of rows of the elimination zone.

[0050] In a possible implementation manner, the one or more voltage values ​​are one or more of a positive level AVDD of an analog power supply, an analog power supply voltage VCI, a power supply low level voltage GND, a high resistance state voltage HIZ, and any gray scale voltage.

[0051] In a possible implementation, the driving module is specifically used to obtain configuration information corresponding to each sub-region from the register according to the register address corresponding to each sub-region when the refresh rate of the display substrate is less than a preset frequency threshold; and generate the one or more groups of source signals according to the configuration information corresponding to each sub-region.

[0052] In a possible implementation manner, the configuration information includes row number information corresponding to each sub-region of the multiple sub-regions and a specified voltage corresponding to each sub-region.

[0053] In a possible implementation manner, the driving module is specifically configured to generate a data signal according to the configuration information; and drive at least one target row at the top and / or bottom of the display area through the data signal.

[0054] In a possible implementation, the driving module is specifically used to drive the topmost row of pixels and / or the bottommost row of pixels in the display area through the data signal so that each pixel therein displays a specified gray scale, wherein the gray scale of the specified gray scale is less than a preset gray scale threshold.

[0055] According to a third aspect of the embodiments of the present application, a computer-readable storage medium is provided, wherein a computer program is stored in the computer-readable storage medium, and when the computer program is executed by a processor, any of the above-mentioned display driving methods is implemented.

[0056] An embodiment of the present invention further provides a computer program product including instructions, which, when executed on a computer, enables the computer to execute any of the above-mentioned display driving methods.

[0057] Beneficial effects of the embodiments of the present invention:

[0058] The embodiment of the present invention provides a display driving method, a display substrate, and a storage medium, the method comprising: when the refresh rate of the display substrate is less than a preset frequency threshold, obtaining configuration information stored in a register; generating a driving signal according to the configuration information; and driving the shadow elimination area and / or the display area through the driving signal. By obtaining the configuration information stored in the register and generating a source signal or a data signal of a specified voltage according to the configuration information, the shadow elimination area is driven according to the source signal, and / or the specified row of the display area is driven according to the data signal, thereby reducing the coupling voltage difference, alleviating the problem of vertical moiré similar to crosstalk occurring at low refresh rates, and improving the display effect.

[0059] Of course, it is not necessary to achieve all of the advantages described above at the same time to implement any product or method of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments can also be obtained based on these drawings.

[0061] Figure 1 A schematic diagram of a crosstalk-like phenomenon of a display substrate in the related art;

[0062] Figure 2 A schematic diagram of another similar crosstalk phenomenon of a display substrate in the related art;

[0063] Figure 3 A schematic diagram of a source signal when some pixels in the last row of a display area display white in the related art;

[0064] Figure 4 A schematic diagram of a source signal when some pixels in the last row of a display area display black in the related art;

[0065] Figure 5 A schematic diagram of a pixel circuit provided in an embodiment of the present application;

[0066] Figure 6 Another schematic diagram of a signal in which the last row of a display area has a black color in the related art;

[0067] Figure 7 A schematic diagram of a process of driving a display substrate provided in an embodiment of the present application;

[0068] Figure 8A schematic diagram of a signal of a specified voltage in the image elimination area in an embodiment of the present application;

[0069] Fig. 9 A schematic diagram of another signal of a specified voltage in the image elimination zone in an embodiment of the present application;

[0070] Fig.10 A first schematic diagram of a source signal in which the shadow elimination area provided in an embodiment of the present application includes two sub-areas;

[0071] Fig.11 A second schematic diagram of a source signal in which the shadow elimination area provided in an embodiment of the present application includes two sub-areas;

[0072] Fig.12 A first schematic diagram of a source signal in which the shadow elimination area provided in an embodiment of the present application includes three sub-areas;

[0073] Fig.13 A second schematic diagram of a source signal in which the shadow elimination area provided in an embodiment of the present application includes three sub-areas. DETAILED DESCRIPTION

[0074] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field based on this application belong to the scope of protection of the present invention.

[0075] The embodiments of the present application provide a display driving method, a display substrate, and a storage medium to alleviate the problem of vertical moire similar to crosstalk that occurs on the display substrate at a low refresh rate. In order to alleviate this problem, the applicant has conducted a lot of research on the cause of this problem. In order to facilitate understanding of the solution of the present application, the cause of this problem needs to be explained in the present application.

[0076] First, the vertical moire similar to crosstalk is explained. The vertical moire similar to crosstalk that appears on the display substrate at a low refresh rate mentioned in this application refers to when the refresh rate of the display substrate is low, for example, when the refresh rate is 1 Hz, if the pattern displayed by the last row of pixels in the display area (AA, Active Area) close to the blanking area (also called the blanking area) is both black and white, then black and white moire will appear in the display area. Figure 1 , Figure 1 Schematic diagram of a crosstalk-like phenomenon of a display substrate in the related art. In this application, the phenomenon of moire appearing at the position of the black pattern is defined as crosstalk-like. In actual use, please refer to Figure 2 , Figure 2 This is a schematic diagram of another similar crosstalk phenomenon of the display substrate in the related art. At a low refresh rate, such as a mobile phone with a refresh rate of 1hz, when the mobile phone APP (Application) uses a calendar interface, the black bold words of the lunar calendar appear at the bottom of the calendar interface, and a similar crosstalk phenomenon will also occur. Of course, the above example is just an example, and this phenomenon will occur in some similar APP application interfaces. Analyzing this phenomenon, it can be found that the scenarios in which this phenomenon occurs are: 1. Only a part of the bold text below is displayed, that is, not every column in the last row has bold text, and the text display position is on the side of the display area close to the driver chip, that is, in the last row of the display area; 2. At this time, the interface of the display area is static, which often appears at a low refresh rate.

[0077] Next, the cause of the problem of vertical moiré similar to crosstalk is explained. Figure 3 , Figure 3 The figure is a schematic diagram of the source signal corresponding to the case where some pixels in the last row of pixels in the display area display white in the related art. When some pixels in the last row of pixels in the display area display white, the source signal in the display area is flat, and the voltage value of the signal is a constant, while the source signal in the porch area decreases smoothly within the time t. It can be understood that each pixel is composed of multiple sub-pixels. Most commonly, a pixel is composed of sub-pixels of three colors: red, green, and blue. The light of each sub-pixel in a pixel is superimposed together to form the color displayed by the pixel. In the column direction, sub-pixels of the same color form a sub-pixel column (or a column of sub-pixels), and sub-pixels in the same column are connected to a source line. See Figure 4 , Figure 4 Schematic diagram of source signals corresponding to when some pixels in the last row of pixels in the display area in the related technology display black. For a specified pixel column in the display area, when the last row of the specified pixel column displays black, the source signal near the blanking area in the display area will be obviously pulled up. During the time of △t plus t after the pull-up, the change value of the source signal is large. When the voltage value changes greatly in a short time, coupling phenomenon will occur in the pixel circuit of the specified pixel column, thereby reducing the brightness of the specified pixel column.

[0078] The following is an explanation with specific examples, see Figure 5 and Figure 6 , Figure 5 is a schematic diagram of a pixel circuit in the display area, where T1, T2, T3, T4, T5, T6, and T7 represent different transistors, and the gate of T3 is Figure 5In the part marked by the arrow, C represents the capacitor, EM represents the scanning signal, VDD represents the positive power supply signal, VSS represents the negative power supply signal, Gate represents the gate signal, Reset(N) represents the reset signal of the Nth pixel row, Reset(N+1) represents the reset signal of the N+1th pixel row, Init represents the initialization signal, V data represents the data signal (i.e., source signal), and N1 and N2 represent different points in the pixel circuit. At a low refresh rate, if the last row of the display area has both black and white, the source signal of the pixel column where the black pixel is located (hereinafter referred to as the designated pixel column) is as follows: Figure 6 As shown, the grayscale value of the last row of pixels in the specified pixel column is 0 (displaying black), and the grayscale value of the pixels before the last row of pixels is 64. It can be seen that the source signal with a grayscale value of 0 will have an obvious pull-up compared with the source signal with a grayscale value of 64. When the source signal voltage changes greatly in a short period of time (from a grayscale value of 0 to GND), due to the existence of the coupling phenomenon, the source signal will be coupled with the voltage at the N1 point in the pixel circuit of this column of pixels, and the coupling phenomenon with the N1 point will cause the display brightness of this column of pixels to decrease. After a frame, the overall brightness of the column will be lower, and the brightness of the white part of the pixel column will not be pulled down, resulting in an obvious dividing line, which is the similar crosstalk problem described in this application. Among them, GND represents the ground voltage, the straight line corresponding to the grayscale value 64 represents the voltage value of the source signal when the grayscale value is 64, and the straight line corresponding to the grayscale value 0 (ie black) represents the voltage value of the source signal when the grayscale value is 0.

[0079] In view of the above-mentioned causes of vertical moire similar to crosstalk, the embodiments of the present application provide a display driving method, a display substrate and a storage medium to alleviate the problem of vertical moire similar to crosstalk occurring at low refresh rates.

[0080] In a first aspect of an embodiment of the present application, a method for driving a display substrate is first provided, wherein the display substrate comprises a shadow elimination area and a display area. Figure 7 , Figure 7 A schematic flow chart of a method for driving a display substrate provided in an embodiment of the present application, the method comprising:

[0081] Step S111, when the refresh rate of the display substrate is less than a preset frequency threshold, acquiring configuration information stored in a register;

[0082] Step S112, generating a driving signal according to the configuration information;

[0083] Step S113, driving the shadow elimination area and / or the display area through the driving signal.

[0084] Corresponding to the above-mentioned step S111, when the refresh rate of the display substrate is less than the preset frequency threshold, it means that the refresh rate of the current display substrate is low, and problems similar to the crosstalk mentioned above may occur. The preset frequency threshold can be measured according to experiments or can be an empirical value. In an example, the preset frequency threshold can be set to 30hz. During actual use, the configuration information can be saved to a specified location in a register. The register can be a configurator for the display substrate, and the display substrate can also include a driver chip. When the refresh rate of the display substrate is less than the preset frequency threshold, the driver chip obtains the configuration information stored in the register, and then drives the display substrate. The driving method of the display substrate provided in the first aspect of the embodiment of the present application can be executed by the driver chip.

[0085] Corresponding to the above step S112, the drive signal is generated according to the configuration information, which can be a source signal or a data signal of a specified voltage generated according to the configuration information. In one example, a source signal (source signal) of a specified voltage value can be generated according to the configuration information, and the source signal can be used to drive the shadow elimination area. In another example, a data signal can be generated according to the configuration information, and the data signal can be used to drive the specified pixel in the display area of ​​the display substrate for display.

[0086] Corresponding to the above step S113, the shadow elimination area and / or display area are driven by the driving signal, and at least one row in the shadow elimination area of ​​the display substrate can be driven by a source signal of a specified voltage. It can also be driven to display a specified pixel row in the display area of ​​the display substrate according to a data signal. It can also be driven to display a specified pixel row in the shadow elimination area by a source signal of a specified voltage, and to drive a specified pixel row in the display area according to a data signal. The above driving method can reduce the degree of voltage mutation, alleviate coupling phenomenon, and alleviate the problem of vertical moiré similar to crosstalk at low refresh rates.

[0087] It can be seen that through the method of the embodiment of the present application, the configuration information stored in the register can be obtained, and a source signal or a data signal of a specified voltage can be generated according to the configuration information, so that the blanking area can be driven according to the source signal, and / or the specified row of the display area can be driven according to the data signal. This can reduce the degree of voltage mutation, alleviate the coupling phenomenon, alleviate the problem of vertical moiré similar to crosstalk that occurs at low refresh rates, and improve the display effect.

[0088] In a possible implementation manner, the configuration information includes one or more voltage values, and the driving signal is a source signal of a specified voltage value;

[0089] The step of driving the shadow elimination area by the driving signal comprises:

[0090] At least one row in the shadow elimination area of ​​the display substrate is driven by the source signal of the specified voltage value.

[0091] Among them, the driving signal can be a source signal of a specified voltage value generated according to the specified voltage information in the configuration information. Specifically, the source signal of the specified voltage value can be generated by the driving chip according to the configuration information. In a possible implementation, the one or more voltage values ​​are one or more of AVDD (positive level of analog power supply), VCI (analog power supply voltage), GND (power supply low level voltage), HIZ (high resistance state voltage), and any grayscale voltage. The arbitrary grayscale voltage can be a voltage corresponding to grayscales such as gray 64, gray0, gray1, gray2, gray3, gray5, and gray8. Since AVDD, VCI, GND, and grayscale voltages are relatively known, by setting the voltage value of the source signal to one or more of AVDD, VCI, GND, and grayscale voltage, it is convenient to set the voltage value of the source signal without expanding the types of voltage values ​​that the driving chip can generate. When driving at least one row of pixel rows in the shadow elimination area of ​​the display substrate by the source signal of the specified voltage value, the at least one row of pixel rows can include all pixel rows in the shadow elimination area, or part of the pixel rows in the shadow elimination area, which can be specifically set by obtaining the configuration information stored in the register. The configuration information may include the position and specified voltage information of at least one row of pixel rows, and the position of the pixel rows driven by the source signal and the voltage value of the source signal of these pixel rows can be set through the configuration information. From the above analysis of the cause of the vertical moire problem similar to crosstalk, it can be known that the main reason is that the voltage of the black pattern plus the voltage of the shadow elimination area pulls up the voltage of the N1 point in the pixel circuit of the corresponding column, and finally the problem of dark lines occurs. When the driving voltage of at least one row in the shadow elimination area of ​​the display substrate is set to a specified voltage, such as adjusted to AVDD, VCI, GND, etc., the voltage mutation can be reduced, so that the coupling voltage difference of the edges of the overall black pattern and the white pattern can be reduced, the coupling phenomenon can be alleviated, the problem of vertical moire similar to crosstalk can be reduced, and the display effect can be improved.

[0092] It can be seen that the method of the embodiment of the present application can obtain the configuration information stored in the register, generate a source signal of a specified voltage according to the configuration information, and drive at least one row in the blanking area according to the source signal, thereby reducing the coupling voltage difference, alleviating the problem of vertical moiré similar to crosstalk that occurs at low refresh rates, and improving the display effect.

[0093] Driving at least one row in the shadow elimination area of ​​the display substrate may be driving all pixel rows in the entire shadow elimination area, or only some pixel rows in the shadow elimination area may be driven. In one possible implementation, driving at least one row in the shadow elimination area of ​​the display substrate by the source signal of the specified voltage value includes: driving the entire shadow elimination area of ​​the display substrate according to the source signal of the specified voltage. In the embodiment of the present application, the entire shadow elimination area is driven by the specified voltage, and the source voltage of the shadow elimination area is adjusted, for example, the voltage of the entire shadow elimination area is fixed to AVDD, or VCI, etc. For example Figure 8 and Fig. 9 As shown, Figure 8 A schematic diagram of a signal of a specified voltage provided in an embodiment of the present application, wherein the source voltage in the blanking area is fixed to AVDD. Fig. 9 A schematic diagram of another signal of a specified voltage provided in an embodiment of the present application, wherein the source voltage of the shadow elimination area is fixed to VCI. It can be understood that Figure 8 , Fig. 9 Only a refresh frequency of 1 Hz is used as an example. For refresh rates less than the preset frequency threshold, the driving method principles are the same and are all within the protection scope of this application.

[0094] The main reason for similar crosstalk problems is that the voltage of the black pattern plus the voltage of the shadow elimination zone pulls the voltage of the entire column to a higher voltage, and finally a dark line phenomenon appears. At a low refresh rate, such as a refresh rate of 1 Hz, the duration of the black pattern voltage in a frame accounts for a very small proportion, and the duration of the source voltage in the shadow elimination zone is much longer than that of the black pattern voltage. The more dominant voltage is the source voltage in the shadow elimination zone. Therefore, in the embodiment of the present application, similar crosstalk problems are alleviated by adjusting the source voltage in the shadow elimination zone. On the one hand, this method can have a good mitigation effect, and on the other hand, it will not affect the normal display of the display area and can improve the display effect.

[0095] In one possible embodiment, the shadow elimination area includes multiple sub-areas, each sub-area includes at least one row; generating a driving signal according to the configuration information includes: generating one or more groups of source signals according to the configuration information, wherein each group of source signals corresponds to a voltage value; driving at least one row in the shadow elimination area of ​​the display substrate through the source signal of the specified voltage value includes: driving each sub-area according to each group of source signals in the one or more groups of source signals, wherein each group of source signals is used to drive a sub-area, and the number of the multiple sub-areas is greater than or equal to the number of voltage values ​​included in the configuration information.

[0096] Compared with the scheme of the previous embodiment, the entire shadow elimination area is driven by a specified voltage. The method of the embodiment of the present application can divide the shadow elimination area into a plurality of sub-areas with specified voltages, and set a specified voltage for each sub-area for driving, so that the display of different areas is more flexible, and in actual use, the sum of the sub-areas with specified voltages can be the entire shadow elimination area or a part of the shadow elimination area. For example, if the shadow elimination area includes 3 sub-areas, a specified voltage signal can be set for each of the 3 sub-areas, and each sub-area is driven by the specified voltage of the sub-area. It is also possible to set only the specified voltage signals of two of the areas, and drive the two areas by the signals of the specified voltages. It can be understood that the source signal is a column signal. Specifically, each pixel is composed of multiple sub-pixels. The most common one is that a pixel is composed of sub-pixels of three colors: red, green, and blue. The light of each sub-pixel in a pixel is superimposed together, which is the color displayed by the pixel. In the column direction, sub-pixels of the same color form a sub-pixel column (or a column of sub-pixels), and the sub-pixels in the same column are connected to a source line. Each row of sub-pixels in the blanking area requires multiple source signals to provide source voltages, and the number of source signals required for each row is the same as the number of sub-pixels in the row. The same sub-area is driven by source signals with the same voltage value, and the source signals used to drive the same sub-area are called a group of source signals.

[0097] In a possible implementation, the driving of each sub-area according to each source signal in the one or more groups of source signals includes: driving the first sub-area according to the first source signal, wherein the one or more voltage values ​​are a voltage value, the one or more groups of source signals are a group of source signals, the group of source signals is a first source signal, the multiple sub-areas include a first sub-area and a second sub-area, the number of rows in the first sub-area is a, the number of rows in the second sub-area is b, a and b are both integers greater than or equal to 1 and less than the total number of rows in the shadow elimination area, and the sum of a and b is equal to the total number of rows in the shadow elimination area. The shadow elimination area is divided into two sub-areas, the first sub-area and the second sub-area, according to different rows. The first sub-area can be a sub-area close to the display area or a sub-area far from the display area. Using the first source signal to drive the first sub-area can increase the average voltage value of the source voltage in the shadow elimination area and reduce the voltage jump, thereby alleviating the problem of vertical moire similar to crosstalk that occurs at low refresh rates and improving the display effect.

[0098] In another possible implementation, the driving of each sub-region according to each source signal in the one or more groups of source signals includes: driving the third sub-region according to the second source signal, and driving the fourth sub-region according to the third source signal, wherein the one or more voltage values ​​include two voltage values, the one or more groups of source signals include the second source signal and the third source signal, the multiple sub-regions include the third sub-region and the fourth sub-region, the number of rows of the third sub-region is c, the number of rows of the fourth sub-region is d, c and d are both integers greater than or equal to 1 and less than the total number of rows of the shadow elimination area, and the sum of c and d is equal to the total number of rows of the shadow elimination area. The total number of rows of the shadow elimination area represents the maximum number of rows of the shadow elimination area. The shadow elimination area is divided into two sub-regions, the third sub-region and the fourth sub-region, according to different rows. The third sub-region can be a sub-region close to the display area or a sub-region far away from the display area. Using the second source signal to drive the third sub-area and using the third source signal to drive the fourth sub-area can increase the average voltage value of the source voltage in the image elimination area and reduce voltage jumps, thereby alleviating the problem of vertical moiré similar to crosstalk that occurs at low refresh rates and improving the display effect.

[0099] In one embodiment, see Fig.10 Although the first sub-region A' and the second sub-region B' are set, a source signal of a specified voltage value can be set only for the first sub-region A', and the first sub-region is driven by the source signal, while a source signal of a specified voltage is not set for the second sub-region B'. The voltage signal in the second sub-region B' can be as follows: Fig.10 As shown, the voltage signal will slowly fall back until it reaches the lowest value GND. In other possible embodiments, when the multiple sub-areas include two sub-areas, the third sub-area and the fourth sub-area, for example Fig.11 As shown, the corresponding second source signal and third source signal can also be set respectively, and the third sub-region C' is driven by the second source signal, and the fourth sub-region D' is driven by the third source signal. It can be understood that Fig.10 , Fig.11 Only a refresh frequency of 1 Hz is used as an example. For refresh rates less than the preset frequency threshold, the driving method principles are the same and are all within the protection scope of this application.

[0100] In a possible implementation, the driving of each sub-region according to each group of source signals in the one or more groups of source signals includes: driving the fifth sub-region according to the fourth source signal, driving the sixth sub-region according to the fifth source signal, wherein the one or more voltage values ​​are two voltage values, the one or more groups of source signals include a fourth source signal and a fifth source signal, the multiple sub-regions include a fifth sub-region, a sixth sub-region and a seventh sub-region, the number of rows of the fifth sub-region is e, the number of rows of the sixth sub-region is f, the number of rows of the seventh sub-region is g, e, f, g are all integers greater than or equal to 1 and less than the total number of rows of the shadow elimination zone, and the sum of e, f, g is equal to the total number of rows of the shadow elimination zone. The embodiment corresponding to this paragraph divides the shadow elimination zone into three sub-regions. When driving the fifth sub-region, the sixth sub-region and the seventh sub-region for the three sub-regions, the fifth sub-region and the sixth sub-region can be driven by the fourth source signal and the fifth source signal respectively, and the source signal may not be set for the seventh sub-region. See. Fig.12 , Fig.12 A schematic diagram including three sub-areas provided in an embodiment of the present application, Fig.12 Sub-area A (corresponding to the fifth sub-area) and sub-area B (corresponding to the sixth sub-area) are each set with a source signal of a corresponding voltage value, and sub-area C (corresponding to the seventh sub-area) is not set with a source signal of a specified voltage value. It will not be restricted to be driven by the source signal of the specified voltage value, and the voltage corresponding to the sub-area will slowly drop until it reaches the lowest value GND.

[0101] In a possible implementation, the driving of each sub-region according to each group of source signals in the one or more groups of source signals includes: driving the eighth sub-region according to the sixth source signal, driving the ninth sub-region according to the seventh source signal, and driving the tenth sub-region according to the eighth source signal, wherein the one or more voltage values ​​are three voltage values, the one or more groups of source signals include the sixth source signal, the seventh source signal and the eighth source signal, the multiple sub-regions include the eighth sub-region, the ninth sub-region and the tenth sub-region, the number of rows of the eighth sub-region is h, the number of rows of the ninth sub-region is i, the number of rows of the tenth sub-region is j, h, i, j are all integers greater than or equal to 1 and less than the total number of rows of the shadow elimination zone, and the sum of h, i, j is equal to the total number of rows of the shadow elimination zone. In an example, Fig.13 As shown, sub-area D (corresponding to the eighth sub-area), sub-area E (corresponding to the ninth sub-area), and sub-area F (corresponding to the tenth sub-area) are each provided with a source signal of a corresponding voltage value. It can be understood that Fig.12 , Fig.13 Only a refresh frequency of 1 Hz is used as an example. For refresh rates less than the preset frequency threshold, the driving method principles are the same and are all within the protection scope of this application.

[0102] It can be seen from the above embodiments that the shadow elimination area can be divided into 2 sub-areas or 3 sub-areas, and the sub-areas are respectively controlled by different source voltages, and different visual effects can be adapted by the combination of source voltages in different sub-areas. Different partitions can make the source voltage of the shadow elimination area more diversified. For display screens with different characteristics, while alleviating the problem of vertical moiré similar to crosstalk, it can also ensure that other optical effects are not affected. It should be noted that the number of sub-areas can be multiple, and the present application does not impose specific restrictions on the number of sub-areas and the source voltages set corresponding to the sub-areas, as long as different sub-areas are each provided with a source signal of a corresponding voltage value. See. Figure 5 Because the voltage of the source signal in the blanking area will affect the voltage level of Vg (gate threshold voltage) of T3 tube, through flexible adjustment, the characteristics of T3 can be adapted to make the margin more sufficient. And, see Fig.11 and Fig.13 , C', D' and D, E, F can each independently control the corresponding number of rows (H) and source levels to be maintained. In an example, the voltages set for different sub-regions can be found in Table 1. D, E, F correspond to Fig.13 In each sub-region, C' and D' correspond to Fig.11 The solution to different voltage combinations is the same, which is to minimize the jump of the black pattern column voltage by adjusting the voltage of the shadow elimination area, thereby alleviating the problem of vertical moiré similar to crosstalk.

[0103] Table 1 shows the voltage values ​​for different sub-areas.

[0104] D AVDD AVDD Any grayscale voltage VCI VCI E VCI GND VCI AVDD Any grayscale voltage F HIZ HIZ GND HIZ HIZ C' AVDD AVDD Any grayscale voltage VCI VCI D' VCI HIZ VCI HIZ GND

[0105] In a possible implementation, when the refresh rate of the display substrate is less than a preset frequency threshold, obtaining the configuration information stored in the register includes: when the refresh rate of the display substrate is less than the preset frequency threshold, according to the register address corresponding to each sub-region, obtaining the configuration information corresponding to each sub-region from the register; generating one or more groups of source signals according to the configuration information includes: generating the one or more groups of source signals according to the configuration information corresponding to each sub-region.

[0106] In an example, the shadow elimination area can be divided into multiple sub-areas, each sub-area can correspond to a register, and the address of the register can be selected from 0000 to FFFF. Tables 2, 3, 4, and 5 can be used to adjust the settings of each sub-area according to actual needs. Among them, Table 2 is a configuration information table of a register. The first column A, B, C...H in the table represents different sub-areas; the second column A0, A1, A2...A7 represents the register addresses corresponding to different sub-areas, wherein the register address corresponding to sub-area A is A0, the register address corresponding to sub-area B is A1, and the register addresses corresponding to other sub-areas are not repeated. local-H-control is a function for setting the rows of the sub-area, and the value corresponding to the function represents the rows included in different sub-areas, wherein sub-area A includes 16 rows, namely E0 to E15; sub-area B includes 16 rows, namely F0 to F15, and the rows included in other sub-areas are not repeated.

[0107] Table 3 is a voltage control information table of a register, through which the number of sub-regions that need to be configured with voltage values ​​and the voltage values ​​of the sub-regions can be set, wherein the partition selection row in the table contains different numbers, such as numbers B0, E0~E3. The specific number represents the number of sub-regions that need to be configured. See Table 4, which is the configuration information corresponding to the partition selection E3 in Table 3, wherein E(0:3) indicates that the code for the corresponding number of sub-regions is 0:3, and the specific meaning is shown in the following rows of Table 4, 0000 represents 1 region, 0001 represents 2 sub-regions, ..., 0111 represents 8 sub-regions. Then 0:3 corresponds to 0011 in binary, that is, 4 sub-regions corresponding to E3, then query Table 2 to determine that the source signal voltage value needs to be configured for the first 4 sub-regions, that is, sub-regions A, B, C, and D. In other possible embodiments, if it is found through Table 3 that the source signal voltage value needs to be configured for 2 sub-regions, then query Table 2 to determine that the source signal voltage value needs to be configured for the first 2 sub-regions, that is, sub-regions A and B.

[0108] In addition, the voltage value corresponding to the sub-area can be queried through Table 3, where the second and third rows in Table 3 contain different voltage value information, such as the voltage values ​​corresponding to B0, B1, B2, etc. The voltage values ​​corresponding to the specific numbers can be found in Table 5, which is the configuration information corresponding to the voltage selection A2 in Table 3, where A(0:2) indicates that the code for the voltage value corresponding to A2 is 0:2. For the specific meaning, see the following rows in Table 5, 0:2 corresponds to binary 0010, that is, the corresponding voltage is set to VCI. Among them, hiz means open circuit, any code means that it can be customized to any value, and TBD is a reserved value, which can be added later according to actual conditions.

[0109] Table 2 is a configuration information table of a register

[0110]

[0111]

[0112] Table 3 is a voltage control information table of a register

[0113]

[0114] Table 4 is a configuration information table corresponding to E3 in Table 3

[0115] E(0:3) Corresponding settings 0000 1 Partition 0001 2 Partitions 0010 3 Partitions 0011 4 Partitions 0100 5. Partition 0101 6 Partitions 0110 7 Divisions 0111 8 Zones

[0116] Table 5 is a configuration information table corresponding to A2 in Table 3

[0117] A(0:2) Corresponding voltage 000 hiz 001 AVDD 010 VCI 011 GND 100 any code 101 TBD 110 TBD 111 TBD

[0118] In addition to controlling the source voltage in the shadow elimination area, similar crosstalk problems can also be alleviated by controlling the Data signal in the display area. In a possible implementation, generating a driving signal according to the configuration information includes: generating a data signal according to the configuration information;

[0119] The driving the display area by the driving signal includes: driving at least one target row at the top and / or bottom of the display area by the data signal.

[0120] Specifically, the data signal is generated according to the configuration information, and the data signal can be generated according to the configuration information by the driver chip. The data signal can drive the display area of ​​the display substrate to display. The side of the display area close to the binding area is called the bottom of the display area, and the side of the display area far from the binding area is called the top. The binding area is the area in the display substrate for binding the driver chip.

[0121] The data signal can be used to drive the display of the 1st to 1+ith rows (corresponding to the target rows at the top of the display area) and the njth to nth rows (corresponding to the target rows at the bottom of the display area), wherein i and j are both positive integers, and n is the total number of rows in the display area.

[0122] The topmost row of pixels and / or the bottommost row of pixels in the display area are set as the target rows. The target rows are driven by the same data signal, that is, the source voltage of the row is the same. When the source in the shadow elimination area changes, it starts from the same voltage, and there will be no vertical moire problem similar to crosstalk. Moreover, in actual use, when the target row is driven by the same data signal, the color of the target row is the same. It can be understood that in the art, the source signal and the Data signal are different names for the same signal.

[0123] It can be seen that through the method of the embodiment of the present application, when the refresh rate of the display substrate is less than the preset frequency threshold, the configuration information stored in the register can be obtained, and a data signal can be generated according to the configuration information. Finally, through the data signal, at least one target row in the display area of ​​the display substrate is driven, so that the data of the target row is the same, and the source voltage of the row is the same. When the source in the blanking area changes, it starts from the same voltage, thereby alleviating the problem of vertical moiré similar to crosstalk.

[0124] In a possible implementation, at least one target row in the display area is driven by the data signal, including: driving the topmost row of pixels and / or the bottommost row of pixels in the display area by the data signal, so that each pixel therein displays a specified grayscale, wherein the grayscale of the specified grayscale is less than a preset grayscale threshold. Theoretically, as long as the same row displays the same grayscale (gray), it will suffice. However, in order to prevent bright edges from appearing at the top or bottom of the display area, the preset grayscale threshold should be as small as possible. For example, the preset grayscale threshold can be set to gray10 or gray20, etc., so that the color displayed at the top or bottom of the display area is close to black, so as to improve the display effect. In an example, the data signals of the topmost row of pixels and the bottommost row of pixels in the display area are the same, so as to ensure that the color displayed at the top or bottom of the display area is the same, so as to further improve the display effect.

[0125] In the embodiment of the present application, by writing the last row or rows of pixels in the display area into the same data, such as gray0, gray1, gray2, gray3, gray5, gray8, etc., the source voltage of the last row or rows can be the same, so that when the source of the porch area changes, it starts from the same voltage, alleviating the problem of vertical moiré similar to crosstalk. Moreover, this method will only cause the last row or rows of pixels on the screen to be blocked, and has almost no effect on the use of the entire mobile phone. At the same time, in order to avoid showing the last row too obviously, the present application sets the grayscale of the specified grayscale to be less than the preset grayscale threshold. In actual use, the grayscale that can be selected can be as low as possible, and the grayscale can be selected according to the final visual effect.

[0126] According to a second aspect of the embodiments of the present application, a display substrate is provided, wherein the display substrate comprises an image elimination area, a display area and a driving module;

[0127] The driving module is used to obtain the configuration information stored in the register when the refresh rate of the display substrate is less than a preset frequency threshold; generate a driving signal according to the configuration information; and drive the shadow elimination area and / or the display area through the driving signal.

[0128] In a possible implementation manner, the configuration information includes one or more voltage values, and the drive signal is a source signal of a specified voltage value;

[0129] The driving module is specifically used to drive at least one row in the shadow elimination area of ​​the display substrate through the source signal of the specified voltage.

[0130] In a possible implementation manner, the driving module is specifically configured to drive the entire shadow elimination area of ​​the display substrate according to the source signal of the specified voltage value.

[0131] In a possible implementation manner, the shadow elimination area includes a plurality of sub-areas, each sub-area includes at least one row, and the specified voltage information includes one or more voltage values;

[0132] The driving module is specifically used to generate one or more groups of source signals according to the configuration information, wherein each group of source signals corresponds to a voltage value; and drive each sub-area according to each group of source signals in the one or more groups of source signals, wherein each group of source signals is used to drive a sub-area, and the number of the multiple sub-areas is greater than or equal to the number of voltage values ​​included in the configuration information.

[0133] In a possible embodiment, the driving module is specifically used to drive the first sub-area according to a first source signal, wherein the one or more voltage values ​​are a voltage value, the one or more groups of source signals are a group of source signals, the group of source signals is a first source signal, the multiple sub-areas include a first sub-area and a second sub-area, the number of rows of the first sub-area is a, the number of rows of the second sub-area is b, a and b are both integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of a and b is equal to the total number of rows of the elimination zone.

[0134] In a possible embodiment, the driving module is specifically used to drive the third sub-region according to the second source signal, and to drive the fourth sub-region according to the third source signal, wherein the one or more voltage values ​​include two voltage values, the one or more groups of source signals include a second source signal and a third source signal, the multiple sub-regions include a third sub-region and a fourth sub-region, the number of rows of the third sub-region is c, the number of rows of the fourth sub-region is d, c and d are both integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of c and d is equal to the total number of rows of the elimination zone.

[0135] In a possible embodiment, the driving module is specifically used to drive the fifth sub-region according to a fourth source signal, and to drive the sixth sub-region according to a fifth source signal, wherein the one or more voltage values ​​are two voltage values, the one or more groups of source signals include a fourth source signal and a fifth source signal, the multiple sub-regions include a fifth sub-region, a sixth sub-region and a seventh sub-region, the number of rows of the fifth sub-region is e, the number of rows of the sixth sub-region is f, and the number of rows of the seventh sub-region is g, e, f, and g are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of e, f, and g is equal to the total number of rows of the elimination zone.

[0136] In a possible embodiment, the driving module is specifically used to drive the eighth sub-region according to the sixth source signal, drive the ninth sub-region according to the seventh source signal, and drive the tenth sub-region according to the eighth source signal, wherein the one or more voltage values ​​are three voltage values, the one or more groups of source signals include the sixth source signal, the seventh source signal and the eighth source signal, the multiple sub-regions include the eighth sub-region, the ninth sub-region and the tenth sub-region, the number of rows of the eighth sub-region is h, the number of rows of the ninth sub-region is i, and the number of rows of the tenth sub-region is j, h, i, and j are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of h, i, and j is equal to the total number of rows of the elimination zone.

[0137] In a possible implementation manner, the one or more voltage values ​​are one or more of a positive level AVDD of an analog power supply, an analog power supply voltage VCI, a power supply low level voltage GND, a high resistance state voltage HIZ, and any gray scale voltage.

[0138] In a possible implementation, the driving module is specifically used to obtain configuration information corresponding to each sub-region from the register according to the register address corresponding to each sub-region when the refresh rate of the display substrate is less than a preset frequency threshold; and generate the one or more groups of source signals according to the configuration information corresponding to each sub-region.

[0139] In a possible implementation manner, the configuration information includes row number information corresponding to each sub-region of the multiple sub-regions and a specified voltage corresponding to each sub-region.

[0140] In a possible implementation manner, the driving module is specifically configured to generate a data signal according to the configuration information; and drive at least one target row at the top and / or bottom of the display area through the data signal.

[0141] In a possible implementation, the driving module is specifically used to drive the topmost row of pixels and / or the bottommost row of pixels in the display area through the data signal so that each pixel therein displays a specified gray scale, wherein the gray scale of the specified gray scale is less than a preset gray scale threshold.

[0142] It can be seen that through the method of the embodiment of the present application, the configuration information stored in the register can be obtained, and a source signal or a data signal of a specified voltage can be generated according to the configuration information, so that the blanking area can be driven according to the source signal, or the specified row of the display area can be driven according to the data signal, thereby reducing the coupling voltage difference at the edges of the black pattern and the white pattern, alleviating the problem of vertical moiré similar to crosstalk that occurs at low refresh rates, and improving the display effect.

[0143] In another embodiment of the present invention, a computer-readable storage medium is provided, in which a computer program is stored. When the computer program is executed by a processor, the steps of any of the above-mentioned driving methods for the display substrate are implemented.

[0144] In another embodiment of the present invention, a computer program product including instructions is provided. When the computer program product is run on a computer, the computer executes the driving method of any display substrate in the above embodiments.

[0145] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk Solid State Disk (SSD)), etc.

[0146] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0147] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the display substrate, storage medium and computer program product embodiments, since they are basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0148] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A method for driving a display substrate, characterized in that: The display substrate comprises an image elimination area and a display area, and the method comprises: When the refresh rate of the display substrate is less than a preset frequency threshold, acquiring configuration information stored in the register; generating a driving signal according to the configuration information; The shadow elimination area and / or the display area are driven by the driving signal.

2. The method according to claim 1, characterized in that The configuration information includes one or more voltage values, and the driving signal is a source signal of a specified voltage value; The step of driving the shadow elimination area by the driving signal comprises: At least one row in the shadow elimination area of ​​the display substrate is driven by the source signal of the specified voltage value.

3. The method according to claim 2, characterized in that The step of driving at least one row in the shadow elimination area of ​​the display substrate by using the source signal of the specified voltage value comprises: The entire image elimination area of ​​the display substrate is driven according to the source signal of the specified voltage value.

4. The method according to claim 2, characterized in that: The shadow elimination area includes a plurality of sub-areas, and each sub-area includes at least one row; The generating a driving signal according to the configuration information comprises: Generate one or more groups of source signals according to the configuration information, wherein each group of source signals corresponds to a voltage value; The step of driving at least one row in the shadow elimination area of ​​the display substrate by using the source signal of the specified voltage value comprises: Each sub-region is driven according to each group of source signals in the one or more groups of source signals, wherein each group of source signals is used to drive one sub-region, and the number of the multiple sub-regions is greater than or equal to the number of voltage values ​​included in the configuration information.

5. The method according to claim 4, characterized in that The driving of each sub-region according to each source signal in the one or more groups of source signals comprises: The first sub-region is driven according to a first source signal, wherein the one or more voltage values ​​are a voltage value, the one or more groups of source signals are a group of source signals, the group of source signals is the first source signal, the multiple sub-regions include a first sub-region and a second sub-region, the number of rows in the first sub-region is a, the number of rows in the second sub-region is b, a and b are both integers greater than or equal to 1 and less than the total number of rows in the elimination zone, and the sum of a and b is equal to the total number of rows in the elimination zone.

6. The method according to claim 4, characterized in that The driving of each sub-area according to each source signal in the one or more groups of source signals comprises: The third sub-region is driven according to the second source signal, and the fourth sub-region is driven according to the third source signal, wherein the one or more voltage values ​​include two voltage values, the one or more groups of source signals include a second source signal and a third source signal, the multiple sub-regions include a third sub-region and a fourth sub-region, the number of rows of the third sub-region is c, the number of rows of the fourth sub-region is d, c and d are both integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of c and d is equal to the total number of rows of the elimination zone.

7. The method according to claim 4, characterized in that The driving of each sub-area according to each source signal in the one or more groups of source signals comprises: The fifth sub-region is driven according to the fourth source signal, and the sixth sub-region is driven according to the fifth source signal, wherein the one or more voltage values ​​are two voltage values, the one or more groups of source signals include a fourth source signal and a fifth source signal, the multiple sub-regions include a fifth sub-region, a sixth sub-region and a seventh sub-region, the number of rows of the fifth sub-region is e, the number of rows of the sixth sub-region is f, the number of rows of the seventh sub-region is g, e, f, g are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of e, f, g is equal to the total number of rows of the elimination zone.

8. The method according to claim 4, characterized in that The driving of each sub-region according to each source signal in the one or more groups of source signals comprises: The eighth sub-region is driven according to the sixth source signal, the ninth sub-region is driven according to the seventh source signal, and the tenth sub-region is driven according to the eighth source signal, wherein the one or more voltage values ​​are three voltage values, the one or more groups of source signals include the sixth source signal, the seventh source signal and the eighth source signal, the multiple sub-regions include the eighth sub-region, the ninth sub-region and the tenth sub-region, the number of rows of the eighth sub-region is h, the number of rows of the ninth sub-region is i, and the number of rows of the tenth sub-region is j, h, i, and j are all integers greater than or equal to 1 and less than the total number of rows of the elimination zone, and the sum of h, i, and j is equal to the total number of rows of the elimination zone.

9. The method according to claim 2, characterized in that: The one or more voltage values ​​are one or more of a positive level AVDD of an analog power supply, an analog power supply voltage VCI, a power supply low level voltage GND, a high resistance state voltage HIZ, and any gray scale voltage.

10. The method according to claim 4, characterized in that When the refresh rate of the display substrate is less than a preset frequency threshold, obtaining the configuration information stored in the register includes: When the refresh rate of the display substrate is less than a preset frequency threshold, acquiring configuration information corresponding to each sub-region from the register according to the register address corresponding to each sub-region; The generating one or more groups of source signals according to the configuration information comprises: The one or more groups of source signals are generated according to the configuration information corresponding to each sub-area.

11. The method according to claim 4, characterized in that The configuration information includes row number information corresponding to each sub-region of the multiple sub-regions and a specified voltage corresponding to each sub-region.

12. The method according to claim 1, characterized in that The generating a driving signal according to the configuration information comprises: generating a data signal according to the configuration information; The step of driving the display area by using the driving signal comprises: At least one target row at the top and / or the bottom of the display area is driven by the data signal.

13. The method according to claim 12, characterized in that The step of driving at least one target row at the top and / or bottom of the display area by using the data signal comprises: The topmost row of pixels and / or the bottommost row of pixels in the display area are driven by the data signal so that each pixel therein displays a specified grayscale, wherein the grayscale of the specified grayscale is less than a preset grayscale threshold.

14. A display substrate, characterized in that: The display substrate comprises an image elimination area, a display area and a driving module; The driving module is used to obtain the configuration information stored in the register when the refresh rate of the display substrate is less than a preset frequency threshold; and generate a driving signal according to the configuration information; The shadow elimination area and / or the display area are driven by the driving signal.

15. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method steps described in any one of claims 1 to 13 are implemented.

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