Display panel control method, device and electronic device

Abstract

The present application discloses a control method, device and electronic device for a display panel, belonging to the field of display technology. The method can determine multiple display gains corresponding to multiple pixels in an image to be displayed based on at least one of the grayscale gain and the voltage drop gain of the multiple pixels; select the display gain with the largest value from the multiple display gains corresponding to the multiple pixels as the maximum display gain of the pixel in the image to be displayed, and the maximum display gain is less than or equal to 1; determine the target working value of the ELVSS required by the display panel based on the maximum display gain and the original working value of the ELVSS, wherein the original working value of the ELVSS is a working value determined based on the current display brightness value of the display panel; and control the display panel to emit light based on the target working value.

Description

Technical Field

[0001] The present application belongs to the field of display technology, and specifically relates to a control method, device and electronic device for a display panel. Background Art

[0002] The operating voltage of the driving circuit of the active matrix organic light emitting diode (AMOLED) display panel includes ELVDD (positive power supply voltage) and ELVSS (negative power supply voltage). Usually, the value of ELVDD is fixed, and the value of ELVSS needs to be adjusted according to the change of DBV (Display Brightness Value) of the display panel.

[0003] In the related art, the working value of ELVSS is dynamically adjusted only according to the DBV of the display panel. Generally speaking, the larger the DBV, the higher the value of ELVSS.

[0004] This method of adjusting ELVSS causes certain energy waste. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a method, device and electronic device for controlling a display panel, so as to reduce energy waste of the display panel and thus reduce power consumption of the display panel.

[0006] In a first aspect, an embodiment of the present application provides a method for controlling a display panel, the method comprising:

[0007] Based on at least one of the grayscale gain and the voltage drop gain of the plurality of pixels in the image to be displayed, a plurality of display gains corresponding to the plurality of pixels are determined, wherein the larger the display grayscale of a pixel, the larger the grayscale gain of the pixel is relatively, and the maximum value of the grayscale gain is less than or equal to 1, and the farther a pixel is from the input end of the ELVSS, the larger the voltage drop gain of the pixel is relatively, and the maximum value of the voltage drop gain is less than or equal to 1;

[0008] Selecting a display gain with the largest value from a plurality of display gains corresponding to the plurality of pixels as the maximum display gain of the pixels in the image to be displayed, wherein the maximum display gain is less than or equal to 1;

[0009] Determining a target operating value of the ELVSS required by the display panel based on the maximum display gain and an original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on a current display brightness value of the display panel;

[0010] The display panel is controlled to emit light based on the target operating value.

[0011] In a second aspect, an embodiment of the present application provides a control device for a display panel, the device comprising:

[0012] A gain determination module, for determining a plurality of display gains corresponding to a plurality of pixels in an image to be displayed based on at least one of a grayscale gain and a voltage drop gain of the plurality of pixels, wherein the greater the display grayscale of a pixel, the greater the grayscale gain of the pixel, and the maximum value of the grayscale gain is less than or equal to 1, and the farther a pixel is from an input end of the ELVSS, the greater the voltage drop gain of the pixel, and the maximum value of the voltage drop gain is less than or equal to 1;

[0013] a gain selection module, configured to select a display gain with the largest value from a plurality of display gains corresponding to the plurality of pixels as the maximum display gain of the pixels in the image to be displayed, wherein the maximum display gain is less than or equal to 1;

[0014] a voltage determination module, configured to determine a target operating value of the ELVSS required by the display panel based on the maximum display gain and an original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on a current display brightness value of the display panel;

[0015] A voltage control module is used to control the display panel to emit light based on the target operating value.

[0016] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0017] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0018] In a fifth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

[0019] In a sixth aspect, an embodiment of the present application provides a computer program product, which is stored in a storage medium and is executed by at least one processor to implement the method described in the first aspect.

[0020] In an embodiment of the present application, the maximum display gain of the pixels in the image to be displayed can be determined based on at least one of the grayscale gain and the voltage drop gain of multiple pixels in the image to be displayed, and the target operating value of ELVSS required for the display panel to display the image to be displayed is determined by using the maximum display gain and the original operating value of ELVSS corresponding to the current display brightness value of the display panel. Since the maximum display gain is less than or equal to 1, the determined target operating value of ELVSS required for the display panel is smaller than the original operating value, which makes the cross-voltage (ELVDD-ELVSS) of the electroluminescent device in the display panel lower, thereby reducing the power consumption of the display panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1A It is a schematic diagram of the driving circuit of the OLED display panel.

[0022] Figure 1B It is a simplified driving circuit diagram of an OLED display panel.

[0023] Figure 2A FIG. 1 is a schematic diagram showing the effect of adjusting the working value of ELVSS according to the DBV of the display panel in the related art.

[0024] Figure 2B FIG. 2 is a second schematic diagram of the effect of adjusting the working value of ELVSS according to the DBV of the display panel in the related art.

[0025] Figure 2C It is a curve diagram showing the corresponding relationship between the working values ​​of DBV and ELVSS of the display panel determined in the related art.

[0026] Figure 3 This is a display screen with a DBV of 500 nit provided by an embodiment of the present application.

[0027] Figure 4 It is a flow chart of a method for controlling a display panel provided in one embodiment of the present application.

[0028] Figure 5 Schematic diagram of grayscale gain setting provided by an embodiment of the present application.

[0029] Figure 6 This is a schematic diagram of voltage drop gain setting provided in an embodiment of the present application.

[0030] Figure 7 This is a structural block diagram of a display driver chip provided in one embodiment of the present application.

[0031] Figure 8 It is a flowchart of a control method of a display panel provided by an embodiment of the present application in an actual application scenario.

[0032] Fig. 9 It is a comparison chart of a target operating value of ELVSS determined by a display panel control method provided by an embodiment of the present application under different display brightness ranges of the display panel and an operating value of ELVSS determined by applying related technologies.

[0033] Fig.10 It is a structural schematic diagram of a control device for a display panel provided in one embodiment of the present application.

[0034] Fig.11 It is a structural schematic diagram of an electronic device provided in one embodiment of the present application.

[0035] Fig.12 It is a schematic diagram of the hardware structure of an electronic device provided in one embodiment of the present application. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0037] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0038] A control method for a display panel provided in an embodiment of the present application is described in detail below with reference to the accompanying drawings through specific embodiments and application scenarios.

[0039] First, in order to more clearly understand a control method of a display panel provided in an embodiment of the present application, the power consumption calculation method of an AMOLED display panel driving circuit and a display panel is described below.

[0040] Figure 1A A schematic diagram of a driving circuit of an OLED display panel (hereinafter referred to as display panel) is shown. Figure 1B FIG. 1 shows a simplified driving circuit diagram of a display panel. Figure 1BAs shown, T1 and T2 are both P-type thin film transistors, and their operating voltages include ELVDD (positive power supply voltage) and ELVSS (negative power supply voltage), wherein ELVDD is a constant positive voltage, usually 4.6V, and ELVSS is an adjustable negative voltage output by the display panel driver chip to control the power driver chip.

[0041] exist Figure 1B Based on this, the power consumption of the display panel can be calculated by the following formula:

[0042] Display panel power consumption = (ELVDD-ELVSS)*I (OLED) (1)

[0043] In formula (1), I (OLED) It is proportional to the brightness of the display panel (or screen brightness), which is output by T1 working in the saturation area. The higher the brightness of the display panel, the greater the voltage division of the display panel, and the smaller the voltage division of T1 tube. The risk of T1 moving to the linear area under high brightness is higher. Therefore, if high brightness is to be guaranteed, the larger the voltage of ELVSS is (the more negative, the larger the absolute value).

[0044] In the related art, the working value of ELVSS is dynamically adjusted according to the DBV (Display Brightness Value) of the display panel, assuming that the display screen of the display panel is a full white screen (255 gray levels). Figure 2A As shown in the figure, under the white screen with DBV of 110nits, the working value of ELVSS is set to -2V. Figure 2B As shown, under the white screen with DBV of 500nits, the working value of ELVSS is set to -3V. Figure 2C The variation curve of the working value of DBV and ELVSS of the display panel is shown. Figure 2C The working value of ELVSS at different DBV can be determined.

[0045] pass Figure 2C It can be seen that, generally, the larger the DBV, the higher the absolute value of ELVSS, and vice versa, the smaller the DBV, the smaller the absolute value of ELVSS. Therefore, the panel power consumption can be optimized by adjusting the DBV of the display panel.

[0046] It is not difficult to find that in this method of adjusting ELVSS in the related art, assuming that all pixels emit white light at the same display brightness (same DBV value), the corresponding display panel has the largest load current. However, in actual applications, the display content of the display panel is complex and changeable, and not all pixels emit white light. Therefore, this adjustment method has a certain amount of energy waste.

[0047] Figure 3The present invention shows a display screen where the DBV is actually 500 nit. Figure 3 As shown in the figure, the voltage drop of ELVSS wiring and the displayed gray scale at different display positions are different. In theory, the ELVSS voltage that can ensure that the driver tube T1 remains in the saturation region is also different. The working value of ELVSS with the largest absolute value required for the entire display screen is -2.9V. It can be understood that using -2.9V for power supply is relatively Figure 2B Based on this finding, the present application provides a control method for a display panel to reduce the power consumption of the display panel.

[0048] like Figure 4 As shown, a control method of a display panel provided in an embodiment of the present application may include:

[0049] Step 401: Determine a plurality of display gains corresponding to a plurality of pixels in an image to be displayed based on at least one of a grayscale gain and a voltage drop gain of the plurality of pixels.

[0050] The image to be displayed may be an image to be displayed on the display panel.

[0051] The multiple pixels in the above-mentioned image to be displayed may include all pixels in the image to be displayed, or may include some pixels selected from the image to be displayed based on preset rules, for example, may be pixels in the image to be displayed whose display grayscale is greater than a preset value, or may be pixels in the image to be displayed whose display grayscale is greater than a preset value and whose display position is in a preset display row, etc. It can be understood that when the multiple pixels include all pixels in the image to be displayed, the display gain of all pixels in the image to be displayed can be determined, so that the maximum display gain of the pixels in the image to be displayed can be more accurately determined in subsequent steps, thereby making the target working value of ELVSS determined based on the maximum display gain more reasonable, and achieving an advanced effect of reducing the power consumption of the display panel without sacrificing the display effect of the display panel.

[0052] It can be understood that in step 401, determining the multiple display gains corresponding to the multiple pixels based on at least one of the grayscale gain and the voltage drop gain of the multiple pixels means that for the multiple pixels, the display gain of the pixel is determined one by one based on at least one of the grayscale gain and the voltage drop gain of the pixel.

[0053] The larger the display grayscale (also referred to as grayscale) of a pixel, the larger the grayscale gain of the pixel, and the maximum value of the grayscale gain is less than or equal to 1. For example, the grayscale gain corresponding to grayscale 255 can be set to 1, and the grayscale gains corresponding to other grayscales can decrease as the grayscale decreases.

[0054] The farther a pixel is from the input end of ELVSS, the larger the voltage drop gain (or impedance gain) of the pixel is, and the maximum value of the voltage drop gain is less than or equal to 1. For example, according to the resolution of the display panel, the display panel can be divided into n display rows from top to bottom, and one display row corresponds to displaying one row of pixels. On this basis, the voltage drop gain of the pixels located in the first display row of the display panel can be set to 1, and the voltage drop gain of the pixels located in other display rows can be reduced as the number of display rows decreases.

[0055] It can be understood that the grayscale gain of a pixel can be regarded as a coefficient for adjusting the value of ELVSS required to display the pixel, and the voltage drop gain of the pixel can be regarded as another coefficient for adjusting the value of ELVSS required to display the pixel. By adjusting these two coefficients, the absolute value of SLVSS required for the entire display panel can be made relatively smaller, thereby reducing the power consumption of the display panel.

[0056] According to the description of step 401, step 401 may include at least the following three implementation modes, which are introduced below respectively.

[0057] First Implementation Method

[0058] In step 401, multiple grayscale gains corresponding to multiple pixels in the to-be-displayed image may be determined based on the display grayscales of the multiple pixels; and then the multiple grayscale gains corresponding to the multiple pixels may be determined as multiple display gains corresponding to the multiple pixels.

[0059] Second implementation method

[0060] In step 401, multiple voltage drop gains corresponding to multiple pixels in the image to be displayed may be determined based on the display positions of the multiple pixels in the display panel; and then the multiple voltage drop gains corresponding to the multiple pixels may be determined as multiple display gains corresponding to the multiple pixels.

[0061] The third implementation method

[0062] In step 401, multiple grayscale gains corresponding to the multiple pixels can be determined based on the display grayscales of the multiple pixels in the image to be displayed; multiple voltage drop gains corresponding to the multiple pixels can be determined based on the display positions of the multiple pixels in the image to be displayed in the display panel; and then the corresponding products of the multiple grayscale gains and the multiple voltage drop gains can be determined as the multiple display gains corresponding to the multiple pixels. That is, for the multiple pixels, the products of the corresponding grayscale gains and voltage drop gains are determined one by one to obtain the multiple display gains corresponding to the multiple pixels.

[0063] In the above-mentioned first embodiment and the above-mentioned third embodiment, determining multiple grayscale gains corresponding to the multiple pixels based on the display grayscales of the multiple pixels in the image to be displayed may include: obtaining a first preset correspondence between different display grayscales and grayscale gains of pixels; and determining multiple grayscale gains corresponding to the multiple pixels based on the display grayscales of the multiple pixels in the image to be displayed and the first preset correspondence.

[0064] It is understandable that different correspondences between display grayscales and grayscale gains can be preset to obtain a first preset correspondence, and then the first preset correspondence can be queried based on the display grayscales of the multiple pixels to obtain multiple grayscale gains corresponding to the multiple pixels.

[0065] In the first example, for grayscales 0 to 255, the grayscale gain corresponding to each grayscale can be set with 1 grayscale as a step to obtain a first preset corresponding relationship.

[0066] In the second example, for grayscales 0 to 255, different grayscale gains can be set for different grayscale ranges to obtain a first preset corresponding relationship, for example, as shown in Table 1. It can be understood that Table 1 is a first preset corresponding relationship.

[0067] Table 1

[0068] Grayscale range Grayscale gain 0～50 0.80 51～100 0.88 101～150 0.94 151～200 0.98 201～255 1

[0069] In the third example, for grayscales of 0 to 255, different grayscale gains can be set for y different grayscale values, and the grayscale gains corresponding to other grayscale values ​​can be calculated based on the grayscale gains corresponding to these y grayscale values ​​according to a linear or nonlinear difference algorithm. For example, six grayscale gains of 0.80, 0.85, 0.88, 0.94, 0.98 and 1 can be set for six grayscale values ​​of 0, 50, 100, 150, 200 and 255, respectively, and then the grayscale gains corresponding to other grayscale values ​​can be calculated based on the grayscale gains corresponding to these six grayscale values ​​according to a linear or nonlinear difference algorithm.

[0070] It should also be noted that a pixel generally includes multiple sub-pixels of different colors. For example, an RGB pixel includes three sub-pixels of red, green and blue, and the luminous efficiency of organic light-emitting diodes of different colors is different (the order of OLED luminous efficiency is green light > red light > blue light). Therefore, for a pixel, the grayscale gains of the sub-pixels of different colors it contains can be calculated separately, and then the grayscale gain of the pixel can be determined based on the grayscale gains of the sub-pixels of different colors.

[0071] Since the luminous efficiencies of organic light emitting diodes of different colors are different, different first preset corresponding relationships can be set for sub-pixels of different colors, and the setting method can be any of the three methods mentioned above. Figure 5 As shown, the first preset corresponding relationship can be set for sub-pixels of different colors according to the setting method in the third example above. Figure 5 As shown, for the red sub-pixel, five grayscale gains of 0.85, 0.9, 0.94, 0.97 and 1 can be set for the five grayscale values ​​of 0, 64, 128, 192 and 255 respectively; for the green sub-pixel, five grayscale gains of 0.80, 0.88, 0.94, 0.98 and 1 can be set for the five grayscale values ​​of 0, 64, 128, 192 and 255 respectively; for the blue sub-pixel, five grayscale gains of 0.90, 0.94, 0.97, 0.99 and 1 can be set for the five grayscale values ​​of 0, 64, 128, 192 and 255 respectively. The grayscale gains corresponding to other grayscale values ​​of sub-pixels of different colors can be calculated based on the grayscale gains corresponding to these five grayscale values ​​according to a linear or nonlinear difference algorithm.

[0072] On this basis, the above-mentioned acquisition of the first preset correspondence between different display grayscales and grayscale gains of pixels may include: acquiring the first preset correspondence between different display grayscales and grayscale gains of sub-pixels of different colors. The above-mentioned determination of multiple grayscale gains corresponding to the multiple pixels based on the display grayscales of the multiple pixels in the image to be displayed and the first preset correspondence may include: determining the display grayscales of sub-pixels of different colors in a target pixel, wherein the target pixel is any pixel among the multiple pixels; determining the grayscale gains of sub-pixels of different colors in the target pixel based on the display grayscales of sub-pixels of different colors in the target pixel and the first preset correspondence corresponding to the color; determining the grayscale gain of the target pixel based on the grayscale gains of sub-pixels of different colors in the target pixel.

[0073] Among them, determining the grayscale gain of the target pixel based on the grayscale gains of sub-pixels of different colors in the target pixel may include: performing weighted summation on the grayscale gains of sub-pixels of different colors in the target pixel to obtain the grayscale gain of the target pixel; or, the product of the grayscale gains of sub-pixels of different colors in the target pixel may be determined as the grayscale gain of the target pixel; or, the maximum value of the grayscale gains of sub-pixels of different colors in the target pixel may be determined as the grayscale gain of the target pixel, and so on.

[0074] In the above-mentioned second embodiment and the above-mentioned third embodiment, the determination of multiple voltage drop gains corresponding to the multiple pixels in the image to be displayed based on the display positions of the multiple pixels in the display panel may include: obtaining a second preset correspondence between different display rows in the display panel and the voltage drop gains, wherein, in the second preset correspondence, the voltage drop gain corresponding to the display row farther from the ELVSS is larger; determining a target display row of a target pixel in the display panel, wherein the target pixel is any pixel among the multiple pixels; and determining the voltage drop gain of the target pixel based on the target display row and the second preset correspondence.

[0075] pass Figure 7 It can be seen that ELVSS is input into the display panel through the wiring at the bottom of the display panel, and the entire wiring is fed to the electroluminescent device of the display panel. The farther away from the input end of ELVSS, the more serious the voltage drop of ELVSS caused by impedance. Therefore, after the value of ELVSS at the top of the display panel meets the display requirements, the ELVSS at other positions also meet the requirements in terms of impedance voltage drop.

[0076] On this basis, as an example, the display panel can be divided into n display rows from top to bottom according to the resolution of the display panel, and one display row corresponds to displaying one row of pixels. Further, the correspondence between different display rows and voltage drop gains can be preset to obtain a second preset correspondence, and then, the second preset correspondence can be queried based on the display rows of the multiple pixels to obtain multiple voltage drop gains corresponding to the multiple pixels.

[0077] Specifically, Figure 6 As shown, the display panel is divided into n display rows from top to bottom, one display row corresponds to displaying at least one row of pixels, and the voltage drop gain of the first display row is set to 1, the voltage drop gain of the nth display row is set to 0.90, and the voltage drop gains of the three display rows in the middle of the display panel are set to 0.99, 0.97 and 0.94 from top to bottom, respectively. Among them, the voltage drop gains of the three display rows in the middle of the display panel can be obtained by actual measurement or set based on experience. The voltage drop gains of the remaining display rows in the display panel can be calculated by a linear or nonlinear difference algorithm based on the display rows with known voltage drop gains.

[0078] It should be noted that the settings of the voltage drop gain and the grayscale gain can be adjusted according to the process conditions of each display panel manufacturer, and are not limited to the settings in the above examples.

[0079] Step 402: Select a display gain with the largest value from a plurality of display gains corresponding to the plurality of pixels as the maximum display gain of the pixels in the image to be displayed, wherein the maximum display gain is less than or equal to 1.

[0080] The above maximum display gain can be expressed as: Gain(max).

[0081] Step 403: Determine a target operating value of the ELVSS required by the display panel based on the maximum display gain and the original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on a current display brightness value of the display panel.

[0082] It can be understood that the target operating value of the ELVSS required by the display panel is the target operating value of the ELVSS required when the display panel displays the image to be displayed.

[0083] Specifically, in step 403, the product of the maximum display gain and the original working value of the ELVSS can be determined as the target working value of the ELVSS required for the display panel to display the image to be displayed. Exemplarily, the original working value of the ELVSS can be obtained by querying Figure 2C get.

[0084] Assuming that the original working value of ELVSS is expressed as ELVSS(DBV), then the target working value of ELVSS can be expressed as:

[0085] ELVSS=ELVSS(DBV)*Gain(max) (2)

[0086] Step 404: Control the display panel to emit light based on the target operating value.

[0087] Specifically, controlling the display panel to emit light based on the target operating value may include: outputting the target operating value to the ELVSS when the display panel displays the image to be displayed.

[0088] In an embodiment of the present application, the maximum display gain of the pixels in the image to be displayed can be determined based on at least one of the grayscale gain and the voltage drop gain of multiple pixels in the image to be displayed, and the target operating value of ELVSS required for the display panel to display the image to be displayed is determined by using the original operating value of ELVSS corresponding to the maximum display gain and the current display brightness value of the display panel. Since the maximum display gain is less than or equal to 1, the determined target operating value of ELVSS is smaller than the original operating value, that is, compared with ELVSS (DBV), ELVSS (DBV) * Gain (max) is smaller, which makes the cross-voltage (ELVDD-ELVSS) of the electroluminescent device in the display panel lower, thereby reducing the power consumption of the display panel.

[0089] A control method for a display panel provided in an embodiment of the present application is described below through a more specific example.

[0090] Figure 7 The structure block diagram of a display driver chip provided by an embodiment of the present application is shown. On this basis, Figure 8 A schematic flow chart of a control method for a display panel provided by an embodiment of the present application in practical application is shown.

[0091] like Figure 7 As shown, for an OLED display panel 72 with a resolution of n rows of pixels and m rows of source channels, the host 70 transmits image data to the display panel driver chip, and the display panel driver chip drives the display panel to display an image. Generally, the display panel driver chip includes: a timing / state controller 71, a data stream processing module 73, a gamma voltage output module 74, an interface and data latch 75, and a power driver chip 76. In actual applications, after the host 70 transmits the image data to the display panel driver chip, the data stream processing module 73 in the display panel driver chip formats the image data and compensates for effects related to the display effect, and then the timing / state controller 71 outputs a gate drive signal to scan row by row. When the timing / state controller 71 scans row by row, the gamma voltage output module 74 converts the image data into a corresponding gamma voltage and writes it into the pixels in the row to drive the display panel 72 to emit light.

[0092] Optionally, the embodiment of the present application introduces a gain calculation module 73 in the display panel driver chip, and before driving the display panel 72 to emit light, adds the following process: ① the gain calculation module 73 extracts the row number of each display row from the data stream processing module 73; ② the gain calculation module 73 extracts the grayscale values ​​of the sub-pixels of different colors in columns 1 to m corresponding to the display row from the data stream processing module 73; then determines the voltage drop gain of the pixel in the row according to the extracted row number, and determines the voltage drop gain of the sub-pixels of different colors in columns 1 to m corresponding to the display row according to the extracted grayscale values ​​of the sub-pixels of different colors in columns 1 to m corresponding to the display row. The grayscale gain of the sub-pixels of different colors in the m columns; then based on the grayscale gain and voltage drop gain of the sub-pixels of different colors in the 1 to m columns corresponding to the display row, determine the display gain of the pixels in the 1 to m columns corresponding to the display row; select the maximum display gain Gain(max) of the pixels in the entire image; finally, determine the target operating value of ELVSS based on Gain(max) and ELVSS(DBV); ③ The power driver chip 76 outputs the target operating value to the ELVSS of the display panel 72 to control the display panel to emit light based on the target operating value. Figure 8 Detailed description.

[0093] It should be noted that if the gain calculation module 77 is not used, the data flow of the display panel driver chip can also directly control the power driver chip 76 to directly output ELVSS (DBV) through the interface and the data latch 75.

[0094] like Figure 8 As shown, in practical applications, a control method of a display panel provided by an embodiment of the present application may include:

[0095] Step 801: The gain calculation module 77 starts scanning the i-th row of pixels of the image to be displayed.

[0096] Generally, scanning starts from the first row of pixels.

[0097] Step 802: The gain calculation module 77 determines the product of the grayscale gain and the voltage drop gain of the pixels in columns 1 to m in the i-th row.

[0098] In this step, the m grayscale gains and m voltage drop gains corresponding to the pixels 1 to m columns (m pixels) in the i-th row can be determined first, and then the products of the grayscale gains and voltage drop gains corresponding to the m pixels can be determined respectively to obtain m products.

[0099] Step 803: The gain calculation module 77 determines the maximum value Gain(i, max) of the product of the grayscale gain and the voltage drop gain of the pixels in the i-th row.

[0100] Step 804, determine whether i is greater than or equal to n; if so, execute step 805, otherwise, add 1 to i and return to execute step 801.

[0101] Step 805: The gain calculation module 77 determines the maximum value Gain(max) of the product of the grayscale gain and the voltage drop gain of the pixels in rows 1 to n.

[0102] Step 806 : The gain calculation module 77 outputs the maximum display gain Gain (max) of the pixels in the image to be displayed to the interface and data latch 75 .

[0103] Step 807 , the interface and data latch 75 determines the product of the maximum display gain Gain (max) and ELVSS (DBV) as the target operating value of ELVSS, and outputs a corresponding electrical signal to the power driver chip 76 based on the target operating value.

[0104] Step 808 : The power driver chip 76 outputs the target operating value to the display panel 72 to control the display panel 72 to emit light based on the target operating value.

[0105] Similarly, in this specific embodiment, the maximum display gain of the pixels in the image to be displayed can be determined based on at least one of the grayscale gain and the voltage drop gain of multiple pixels in the image to be displayed, and the target operating value of ELVSS required for the display panel to display the image to be displayed is determined by using the original operating value of ELVSS corresponding to the maximum display gain and the current display brightness value of the display panel. Since the maximum display gain is less than or equal to 1, the determined target operating value of ELVSS is smaller than the original operating value, that is, compared with ELVSS (DBV), ELVSS (DBV) * Gain (max) is smaller, which makes the cross-voltage (ELVDD-ELVSS) of the electroluminescent device in the display panel lower, thereby reducing the power consumption of the display panel.

[0106] Fig. 9 A comparison chart is given of the target working value of ELVSS determined by a display panel control method provided by an embodiment of the present application under different display brightness ranges, and the working value of ELVSS determined by applying related technologies. Fig. 9 It is not difficult to see that, in each brightness range, the target operating value of ELVSS determined by the control method of a display panel provided by the embodiment of the present application is lower than the operating value of ELVSS determined by the application of the related technology. It can be seen that the control method of a display panel provided by the embodiment of the present application can effectively reduce the power consumption of the display panel.

[0107] It should also be noted that the control method of a display panel provided in an embodiment of the present application is not only applicable to the power consumption optimization of LTPS (low-temperature polycrystalline silicon) AMOLED display panels, but is also applicable to the power consumption optimization of other display panels such as LTPO (low-temperature polycrystalline oxide) display panels.

[0108] The embodiment of the present application provides a method for controlling a display panel, and the execution subject may be a control device for a display panel. The embodiment of the present application takes the control device for a display panel executing the method for controlling a display panel as an example to illustrate the control device for a display panel provided by the embodiment of the present application.

[0109] like Fig.10 As shown, a control device for a display panel provided in an embodiment of the present application may include: a gain determination module 1001 , a gain selection module 1002 , a voltage determination module 1003 and a voltage control module 1004 .

[0110] The gain determination module 1001 is used to determine a plurality of display gains corresponding to a plurality of pixels in an image to be displayed based on at least one of a grayscale gain and a voltage drop gain of the plurality of pixels.

[0111] Among them, the larger the display grayscale of a pixel, the larger the grayscale gain of the pixel, and the maximum value of the grayscale gain is less than or equal to 1. The farther a pixel is from the input end of ELVSS, the larger the voltage drop gain of the pixel, and the maximum value of the voltage drop gain is less than or equal to 1.

[0112] The multiple pixels may include all pixels in the image to be displayed.

[0113] In a first implementation manner, the gain determination module may include: a grayscale gain determination submodule and a display gain determination submodule.

[0114] The grayscale gain determination submodule is used to determine a plurality of grayscale gains corresponding to the plurality of pixels based on the display grayscales of the plurality of pixels in the image to be displayed.

[0115] The display gain determination submodule is used to determine the multiple grayscale gains corresponding to the multiple pixels as the multiple display gains corresponding to the multiple pixels.

[0116] In a second implementation manner, the gain determination module may include: a voltage drop gain determination submodule and a display gain determination submodule.

[0117] The voltage drop gain determination submodule is used to determine a plurality of voltage drop gains corresponding to the plurality of pixels based on display positions of the plurality of pixels in the image to be displayed in the display panel.

[0118] The display gain determination submodule is used to determine the multiple voltage drop gains corresponding to the multiple pixels as the multiple display gains corresponding to the multiple pixels.

[0119] In a third implementation manner, the gain determination module may include: a grayscale gain determination submodule, a voltage drop gain determination submodule and a display gain determination submodule.

[0120] A grayscale gain determination submodule, configured to determine a plurality of grayscale gains corresponding to the plurality of pixels based on display grayscales of the plurality of pixels in the image to be displayed;

[0121] A voltage drop gain determination submodule, configured to determine a plurality of voltage drop gains corresponding to a plurality of pixels in the image to be displayed based on display positions of the plurality of pixels in the display panel;

[0122] The display gain determination submodule is used to determine the products of the multiple grayscale gains and the multiple voltage drop gains as multiple display gains corresponding to the multiple pixels.

[0123] The grayscale gain determination submodule in the first embodiment and the third embodiment may include: a first acquisition unit and a grayscale gain determination unit.

[0124] The first acquisition unit is used to acquire a first preset correspondence between different display grayscales and grayscale gains of a pixel.

[0125] The grayscale gain determining unit is used to determine a plurality of grayscale gains corresponding to the plurality of pixels based on the display grayscales of the plurality of pixels in the image to be displayed and the first preset corresponding relationship.

[0126] Furthermore, a pixel includes sub-pixels of different colors; wherein the first acquisition unit can be used to obtain a first preset correspondence between different display grayscales and grayscale gains of sub-pixels of different colors; wherein the grayscale gain determination unit can be used to determine the display grayscales of sub-pixels of different colors in a target pixel, wherein the target pixel is any one of the multiple pixels; based on the display grayscales of sub-pixels of different colors in the target pixel and the first preset correspondence corresponding to the color, the grayscale gains of sub-pixels of different colors in the target pixel are determined; based on the grayscale gains of sub-pixels of different colors in the target pixel, the grayscale gain of the target pixel is determined.

[0127] The voltage drop gain determination submodule in the second embodiment and the third embodiment may include: a second acquisition unit, a display line determination unit and a voltage drop gain determination unit.

[0128] The second acquisition unit is used to acquire a second preset correspondence between different display rows in the display panel and voltage drop gains, wherein in the second preset correspondence, the voltage drop gain corresponding to the display row farther from the ELVSS is greater.

[0129] The display row determining unit is used to determine a target display row of a target pixel in the display panel, wherein the target pixel is any pixel among the plurality of pixels.

[0130] A voltage drop gain determining unit is used to determine the voltage drop gain of the target pixel based on the target display row and the second preset corresponding relationship.

[0131] The gain selection module 1002 is used to select a display gain with the largest value from the multiple display gains corresponding to the multiple pixels as the maximum display gain of the pixels in the image to be displayed, wherein the maximum display gain is less than or equal to 1.

[0132] The voltage determination module 1003 is used to determine the target operating value of the ELVSS required by the display panel based on the maximum display gain and the original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on the current display brightness value of the display panel.

[0133] Specifically, the voltage determination module 1003 may be used to determine the product of the maximum display gain and the original working value of the ELVSS as the target working value of the ELVSS required for the display panel to display the image to be displayed.

[0134] The voltage control module 1004 is used to control the display panel to emit light based on the target operating value.

[0135] A control device for a display panel provided in an embodiment of the present application can determine the maximum display gain of pixels in an image to be displayed based on at least one of multiple grayscale gains and voltage drop gains corresponding to multiple pixels in the image to be displayed, and use the maximum display gain and the original working value of ELVSS corresponding to the current display brightness value of the display panel to determine the target working value of ELVSS required for the display panel to display the image to be displayed. Since the maximum display gain is less than or equal to 1, the determined target working value of ELVSS is smaller than the original working value, that is, compared with ELVSS (DBV), ELVSS (DBV) * Gain (max) is smaller, which makes the cross-voltage (ELVDD-ELVSS) of the electroluminescent device in the display panel lower, thereby reducing the power consumption of the display panel.

[0136] A control device for a display panel in an embodiment of the present application may be an electronic device or a component in an electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal or other devices other than a terminal. Exemplarily, the electronic device may be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR) / virtual reality (virtual reality, VR) device, a robot, a wearable device, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a netbook or a personal digital assistant (personal digital assistant, PDA), etc., and may also be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (personal computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiments of the present application.

[0137] A control device for a display panel in an embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0138] A control device for a display panel provided in an embodiment of the present application can achieve Figure 4 or Figure 8 To avoid repetition, the various processes implemented by the method embodiment are not described here.

[0139] Alternatively, if Fig.11 As shown, an embodiment of the present application also provides an electronic device 1100, including a processor 1101 and a memory 1102, wherein the memory 1102 stores programs or instructions that can be executed on the processor 1101, and when the program or instructions are executed by the processor 1101, the various steps of the above-mentioned display panel control method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not described here.

[0140] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0141] Fig.12 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of the present application.

[0142] The electronic device 120 includes but is not limited to: a radio frequency unit 121, a network module 122, an audio output unit 123, an input unit 124, a sensor 125, a display unit 126, a user input unit 127, an interface unit 128, a memory 129, and a processor 112 and other components.

[0143] Those skilled in the art will appreciate that the electronic device 120 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 112 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Fig.12 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0144] Among them, the processor 112 can be used to determine multiple display gains corresponding to the multiple pixels based on at least one of the grayscale gain and the voltage drop gain of the multiple pixels in the image to be displayed, wherein the larger the display grayscale of a pixel, the larger the grayscale gain of the pixel, and the maximum value of the grayscale gain is less than or equal to 1, and the farther a pixel is from the input end of the ELVSS, the larger the voltage drop gain of the pixel, and the maximum value of the voltage drop gain is less than or equal to 1; select the display gain with the largest value from the multiple display gains corresponding to the multiple pixels as the maximum display gain of the pixel in the image to be displayed, wherein the maximum display gain is less than or equal to 1; determine the target operating value of the ELVSS required by the display panel based on the maximum display gain and the original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on the current display brightness value of the display panel; and control the display panel to emit light based on the target operating value.

[0145] The electronic device 120 provided in the embodiment of the present application can determine the maximum display gain of the pixels in the image to be displayed based on at least one of the grayscale gain and the voltage drop gain of multiple pixels in the image to be displayed, and use the maximum display gain and the original working value of ELVSS corresponding to the current display brightness value of the display panel to determine the target working value of ELVSS required when the display panel displays the image to be displayed. Since the maximum display gain is less than or equal to 1, the determined target working value of ELVSS is smaller than the original working value, that is, compared with ELVSS (DBV), ELVSS (DBV) * Gain (max) is smaller, which makes the cross-voltage (ELVDD-ELVSS) of the electroluminescent device in the display panel lower, thereby reducing the power consumption of the display panel.

[0146] It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and at least one of other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0147] The memory 109 can be used to store software programs and various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 109 may include a volatile memory or a non-volatile memory, or the memory 109 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0148] The processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 110.

[0149] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned display panel control method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0150] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0151] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned display panel control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0152] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0153] An embodiment of the present application provides a computer program product, which is stored in a storage medium. The program product is executed by at least one processor to implement the various processes of the above-mentioned display panel control method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0154] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes 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 one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0155] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0156] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A method for controlling a display panel, characterized in that: The method comprises: Based on the grayscale gains and voltage drop gains corresponding to the multiple pixels in the image to be displayed, multiple display gains corresponding to the multiple pixels are determined, wherein one pixel corresponds to one display gain, the larger the display grayscale of a pixel, the larger the grayscale gain of the pixel is, and the maximum value of the grayscale gain is less than or equal to 1, the farther a pixel is from the input end of ELVSS, the larger the voltage drop gain of the pixel is, and the maximum value of the voltage drop gain is less than or equal to 1; Selecting a display gain with the largest value from a plurality of display gains corresponding to the plurality of pixels as the maximum display gain of the pixels in the image to be displayed, wherein the maximum display gain is less than or equal to 1; Determining a target operating value of the ELVSS required by the display panel based on the maximum display gain and an original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on a current display brightness value of the display panel; Controlling the display panel to emit light based on the target operating value; The step of determining a plurality of display gains corresponding to a plurality of pixels based on the grayscale gains and the voltage drop gains of the plurality of pixels in the image to be displayed comprises: Based on the display grayscales of a plurality of pixels in the image to be displayed, determining a plurality of grayscale gains corresponding to the plurality of pixels; Determining a plurality of voltage drop gains corresponding to a plurality of pixels in the image to be displayed based on display positions of the plurality of pixels in the display panel; Corresponding products of the plurality of grayscale gains and the plurality of voltage drop gains are determined as a plurality of display gains corresponding to the plurality of pixels.

2. The method according to claim 1, characterized in that The step of determining a plurality of grayscale gains corresponding to the plurality of pixels based on the display grayscales of the plurality of pixels in the image to be displayed comprises: Acquire a first preset correspondence relationship between different display grayscales and grayscale gains of a pixel; Based on the display grayscales of a plurality of pixels in the image to be displayed and the first preset corresponding relationship, a plurality of grayscale gains corresponding to the plurality of pixels are determined.

3. The method according to claim 1, characterized in that The determining, based on display positions of the plurality of pixels in the image to be displayed in the display panel, a plurality of voltage drop gains corresponding to the plurality of pixels comprises: Acquire a second preset correspondence relationship between different display rows in the display panel and voltage drop gains, wherein in the second preset correspondence relationship, a display row farther from the ELVSS corresponds to a larger voltage drop gain; Determining a target display row of a target pixel in the display panel, wherein the target pixel is any pixel among the plurality of pixels; Based on the target display row and the second preset corresponding relationship, a voltage drop gain of the target pixel is determined.

4. The method according to any one of claims 1 to 3, characterized in that The determining, based on the maximum display gain and the original working value of the ELVSS, a target working value of the ELVSS required by the display panel includes: The product of the maximum display gain and the original working value of the ELVSS is determined as the target working value of the ELVSS required by the display panel.

5. A control device for a display panel, characterized in that: The device comprises: A gain determination module, for determining a plurality of display gains corresponding to a plurality of pixels in an image to be displayed based on grayscale gains and voltage drop gains corresponding to the plurality of pixels, wherein one pixel corresponds to one display gain, the larger the display grayscale of a pixel, the larger the grayscale gain of the pixel, and the maximum value of the grayscale gain is less than or equal to 1, the farther a pixel is from an input end of ELVSS, the larger the voltage drop gain of the pixel, and the maximum value of the voltage drop gain is less than or equal to 1; a gain selection module, configured to select a display gain with the largest value from a plurality of display gains corresponding to the plurality of pixels as the maximum display gain of the pixels in the image to be displayed, wherein the maximum display gain is less than or equal to 1; a voltage determination module, configured to determine a target operating value of the ELVSS required by the display panel based on the maximum display gain and an original operating value of the ELVSS, wherein the original operating value of the ELVSS is an operating value determined based on a current display brightness value of the display panel; A voltage control module, used for controlling the display panel to emit light based on the target operating value; The gain determination module comprises: A grayscale gain determination submodule, configured to determine a plurality of grayscale gains corresponding to the plurality of pixels based on display grayscales of the plurality of pixels in the image to be displayed; A voltage drop gain determination submodule, configured to determine a plurality of voltage drop gains corresponding to a plurality of pixels in the image to be displayed based on display positions of the plurality of pixels in the display panel; The display gain determination submodule is used to determine corresponding products of the plurality of grayscale gains and the plurality of voltage drop gains as a plurality of display gains corresponding to the plurality of pixels.

6. The device according to claim 5, characterized in that The grayscale gain determination submodule includes: A first acquisition unit, used for acquiring a first preset correspondence between different display grayscales and grayscale gains of a pixel; The grayscale gain determining unit is used to determine a plurality of grayscale gains corresponding to the plurality of pixels based on the display grayscales of the plurality of pixels in the image to be displayed and the first preset corresponding relationship.

7. The device according to claim 5, characterized in that The voltage drop gain determination submodule includes: A second acquisition unit, configured to acquire a second preset correspondence relationship between different display rows in the display panel and voltage drop gains, wherein in the second preset correspondence relationship, a display row farther from the ELVSS corresponds to a larger voltage drop gain; A display row determining unit, configured to determine a target display row of a target pixel in the display panel, wherein the target pixel is any pixel among the plurality of pixels; A voltage drop gain determining unit is used to determine the voltage drop gain of the target pixel based on the target display row and the second preset corresponding relationship.

8. The device according to any one of claims 5 to 7, characterized in that: The voltage determination module is used for: The product of the maximum display gain and the original working value of the ELVSS is determined as the target working value of the ELVSS required by the display panel.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for controlling a display panel as described in any one of claims 1 to 4 are implemented.

10. A readable storage medium, characterized in that: The readable storage medium stores a program or an instruction, and when the program or the instruction is executed by the processor, the steps of the method for controlling the display panel according to any one of claims 1 to 4 are implemented.

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