A display screen brightness control method, device, equipment and medium

Abstract

The application discloses a display screen brightness control method, device, equipment and medium. The brightness control method comprises the following steps: obtaining a first color required display brightness, a second color required display brightness and a third color required display brightness in a next to-be-displayed picture according to display requirements; determining a first color actual display brightness, a second color actual display brightness and a third color actual display brightness according to the first color required display brightness, the second color required display brightness, the third color required display brightness and a maximum display threshold of the display screen; and controlling the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness. The actual display brightness of the to-be-displayed picture can be controlled within the maximum display brightness of the display screen by the brightness control method, and the problem that the display screen is abnormal due to power supply aging and power reduction is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display screen, and in particular to a display screen brightness control method, device, equipment and medium. BACKGROUND

[0002] The display screen is composed of LED lamp beads, and the LED lamp beads have the characteristics of low voltage and large current, so the display screen is generally powered by a 220V to 5V power supply.

[0003] The existing display screen usually needs to run for a long time in an outdoor environment with high temperature and humidity, so the power supply is prone to aging, for example, a 400W power supply may only have 2-300W after working outdoors for two to three years. In general, the control card and the display screen of the display screen share a power supply, and because the content of the display screen is updated at any time, the brightness of the LED lamp beads changes greatly, especially when the display screen displays a full white picture, the instantaneous probability may exceed the actual maximum power of the power supply, at this time the output voltage of the power supply is prone to a large drop.

[0004] The drop of the output voltage of the power supply will cause the control card of the display screen to crash, crash, or work abnormally, thereby causing the display screen to display abnormally. Because the outdoor display screen is usually deployed on a highway or on the outer wall of a building, it is difficult to replace the power supply. SUMMARY

[0005] The present application provides a display screen brightness control method, device, equipment and medium to solve the problem that the existing display screen will cause display abnormalities due to power supply aging and power reduction.

[0006] In a first aspect, the present application provides a display screen brightness control method, which comprises:

[0007] According to the display requirements, the first color requirement display brightness, the second color requirement display brightness and the third color requirement display brightness in the next to be displayed picture are obtained;

[0008] According to the first color requirement display brightness, the second color requirement display brightness, the third color requirement display brightness and the maximum display threshold of the display screen, the first color actual display brightness, the second color actual display brightness and the third color actual display brightness are determined;

[0009] According to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness, the display screen displays the next to be displayed picture.

[0010] Optionally, the first color actual display brightness, the second color actual display brightness and the third color actual display brightness are determined according to the first color required display brightness, the second color required display brightness, the third color required display brightness and the maximum display threshold of the display screen, comprising:

[0011] The required display brightness sum is determined according to the first color required display brightness, the second color required display brightness and the third color required display brightness;

[0012] The overall adjustment ratio is determined according to the required display brightness sum and the maximum display threshold of the display screen;

[0013] The first adjustment ratio of the first color required display brightness is determined according to the first color required display brightness, the required display brightness sum and the overall adjustment ratio; the second adjustment ratio of the second color required display brightness is determined according to the second color required display brightness, the required display brightness sum and the overall adjustment ratio; and the third adjustment ratio of the third color required display brightness is determined according to the third color required display brightness, the required display brightness sum and the overall adjustment ratio;

[0014] The first color actual display brightness is determined according to the first color required display brightness and the first adjustment ratio, the second color actual display brightness is determined according to the second color required display brightness and the second adjustment ratio, and the third color actual display brightness is determined according to the third color required display brightness and the third adjustment ratio.

[0015] Optionally, the overall adjustment ratio is determined according to the required display brightness sum and the maximum display threshold of the display screen, comprising:

[0016] The overall adjustment ratio is determined according to the following corresponding relationship:

[0017] Percent=1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein, Percent represents the overall adjustment ratio, RGB_Total represents the required display brightness sum, and RGB_Limit represents the maximum display threshold;

[0018] The first adjustment ratio of the first color required display brightness is determined according to the first color required display brightness, the required display brightness sum and the overall adjustment ratio; the second adjustment ratio of the second color required display brightness is determined according to the second color required display brightness, the required display brightness sum and the overall adjustment ratio; and the third adjustment ratio of the third color required display brightness is determined according to the third color required display brightness, the required display brightness sum and the overall adjustment ratio, comprising:

[0019] The first adjustment ratio is determined according to a corresponding relationship as follows:

[0020] Rx=1-[(R_Total / RGB_Total)*Percent];

[0021] The second adjustment ratio is determined according to a corresponding relationship as follows:

[0022] Gx=1-[(G_Total / RGB_Total)*Percent];

[0023] The third adjustment ratio is determined according to a corresponding relationship as follows:

[0024] Bx=1-[(B_Total / RGB_Total)*Percent];

[0025] wherein Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Bx represents the third adjustment ratio, and B_Total represents the third color demand display brightness.

[0026] Optionally, the display screen comprises first color light emitting elements, second color light emitting elements, and third color light emitting elements; the light emitting efficiencies of the first color light emitting elements, the second color light emitting elements, and the third color light emitting elements are different.

[0027] The overall adjustment ratio is determined according to the total demand display brightness and the maximum display threshold of the display screen, comprising:

[0028] The overall adjustment ratio is determined according to a corresponding relationship as follows:

[0029] Percent=1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein Percent represents the overall adjustment ratio, RGB_Total represents the total demand display brightness, and RGB_Limit represents the maximum display threshold.

[0030] The first adjustment ratio of the first color demand display brightness is determined according to the first color demand display brightness, the total demand display brightness, and the overall adjustment ratio; the second adjustment ratio of the second color demand display brightness is determined according to the second color demand display brightness, the total demand display brightness, and the overall adjustment ratio; and the third adjustment ratio of the third color demand display brightness is determined according to the third color demand display brightness, the total demand display brightness, and the overall adjustment ratio, comprising:

[0031] determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the demand display brightness sum, a first gain parameter and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the demand display brightness sum, a second gain parameter and the overall adjustment ratio; determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the demand display brightness sum, a third gain parameter and the overall adjustment ratio:

[0032] determining the first adjustment ratio according to the following correspondence relationship:

[0033] Rx = 1-{[(R_Total / RGB_Total)+Ry]*Percent};

[0034] determining the second adjustment ratio according to the following correspondence relationship:

[0035] Gx = 1-{[(G_Total / RGB_Total)+Gy]*Percent};

[0036] determining the third adjustment ratio according to the following correspondence relationship:

[0037] Bx = 1-{[(B_Total / RGB_Total)+By]*Percent};

[0038] wherein, Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Ry represents the first gain parameter, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Gy represents the second gain parameter, Bx represents the third adjustment ratio, B_Total represents the third color demand display brightness, and By represents the third gain parameter; wherein, the first color light emitting element has a light emitting efficiency greater than that of the second color light emitting element and the third color light emitting element, 0≤Gy

[0039] Optionally, the display screen comprises a first color light emitting element, a second color light emitting element and a third color light emitting element; the first color light emitting element, the second color light emitting element and the third color light emitting element have different numbers of settings.

[0040] determining an overall adjustment ratio according to the demand display brightness sum and a maximum display threshold of the display screen, comprising:

[0041] determining the overall adjustment ratio according to the following correspondence relationship:

[0042] Percent = 1 - (RGB_Total - RGB_Limit) / RGB_Limit, wherein Percent represents the overall adjustment ratio, RGB_Total represents the total required display brightness, and RGB_Limit represents the maximum display threshold value;

[0043] determining a first adjustment ratio of the first color required display brightness according to the first color required display brightness, the total required display brightness, and the overall adjustment ratio; determining a second adjustment ratio of the second color required display brightness according to the second color required display brightness, the total required display brightness, and the overall adjustment ratio; and determining a third adjustment ratio of the third color required display brightness according to the third color required display brightness, the total required display brightness, and the overall adjustment ratio, comprising:

[0044] determining a first adjustment ratio of the first color required display brightness according to the first color required display brightness, the total required display brightness, a fourth gain parameter, and the overall adjustment ratio; determining a second adjustment ratio of the second color required display brightness according to the second color required display brightness, the total required display brightness, a fifth gain parameter, and the overall adjustment ratio; and determining a third adjustment ratio of the third color required display brightness according to the third color required display brightness, the total required display brightness, a sixth gain parameter, and the overall adjustment ratio:

[0045] determining the first adjustment ratio according to the following correspondence relationship:

[0046] Rx = 1 - {[(R_Total / RGB_Total) + Rz] * Percent};

[0047] determining the second adjustment ratio according to the following correspondence relationship:

[0048] Gx = 1 - {[(G_Total / RGB_Total) + Gz] * Percent};

[0049] determining the third adjustment ratio according to the following correspondence relationship:

[0050] Bx = 1 - {[(B_Total / RGB_Total) + Bz] * Percent};

[0051] RxRzGxGzBxBzR_TotalG_TotalB_TotalR_Total’G_Total’B_Total’ wherein, Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Rz represents the fourth gain parameter, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Gz represents the fifth gain parameter, Bx represents the third adjustment ratio, B_Total represents the third color demand display brightness, Bz represents the sixth gain parameter; wherein, the setting number of the second color light emitting element is greater than the setting number of the first color light emitting element and the third color light emitting element, 0≤Rz

[0052] Optionally, determining the demand display brightness sum according to the first color demand display brightness, the second color demand display brightness and the third color demand display brightness comprises:

[0053] determining the demand display brightness sum according to the following corresponding relationship:

[0054] RGB_Total = R_Total + G_Total + B_Total, wherein RGB_Total represents the demand display brightness sum, R_Total represents the first color demand display brightness, G_Total represents the second color demand display brightness, and B_Total represents the third color demand display brightness;

[0055] determining a first color actual display brightness according to the first color demand display brightness and the first adjustment ratio, determining a second color actual display brightness according to the second color demand display brightness and the second adjustment ratio, and determining a third color actual display brightness according to the third color demand display brightness and the third adjustment ratio comprises:

[0056] determining the first color actual display brightness according to the following corresponding relationship:

[0057] R_Total’ = R_Total * Rx;

[0058] determining the second color actual display brightness according to the following corresponding relationship:

[0059] G_Total’ = G_Total * Gx;

[0060] determining the third color actual display brightness according to the following corresponding relationship:

[0061] B_Total’ = B_Total * Bx;

[0062] Wherein, R_Total' represents the first color actual display brightness, Rx represents the first adjustment ratio, G_Total' represents the second color actual display brightness, Gx represents the second adjustment ratio, B_Total' represents the third color actual display brightness, and Bx represents the third adjustment ratio.

[0063] Optionally, after the first color actual display brightness, the second color actual display brightness and the third color actual display brightness are determined according to the first color required display brightness, the second color required display brightness, the third color required display brightness and the maximum display threshold of the display screen, the method further comprises:

[0064] corresponding relationship between the first color required display brightness and the first color actual display brightness is established and stored, a corresponding relationship between the second color required display brightness and the second color actual display brightness is established and stored, and a corresponding relationship between the third color required display brightness and the third color actual display brightness is established and stored.

[0065] In a second aspect, an embodiment of the present application provides a display screen brightness control device, which comprises:

[0066] a required display brightness acquisition module, configured to acquire a first color required display brightness, a second color required display brightness and a third color required display brightness in a next to-be-displayed picture according to display requirements;

[0067] an actual display brightness determination module, configured to determine a first color actual display brightness, a second color actual display brightness and a third color actual display brightness according to the first color required display brightness, the second color required display brightness, the third color required display brightness and a maximum display threshold of the display screen;

[0068] a display control module, configured to control the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0069] In a third aspect, an embodiment of the present application provides an electronic device, which comprises:

[0070] one or more processors;

[0071] a storage device, configured to store one or more programs,

[0072] When the one or more programs are executed by the one or more processors, the one or more processors implement the brightness control method as described above.

[0073] In a fourth aspect, an embodiment of the present application provides a storage medium having stored thereon a computer program, which, when executed by a processor, implements the brightness control method as described above.

[0074] The technical scheme of the embodiment of the present application provides a brightness control method of a display screen, which comprises: obtaining a first color required display brightness, a second color required display brightness and a third color required display brightness in a next to-be-displayed picture according to display requirements; determining a first color actual display brightness, a second color actual display brightness and a third color actual display brightness according to the first color required display brightness, the second color required display brightness, the third color required display brightness and a maximum display threshold of the display screen; and controlling the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness. The actual display brightness of the to-be-displayed picture can be controlled within the maximum display threshold of the display screen by the brightness control method, and the problem that the display screen displays abnormally due to aging and power reduction of a power supply is solved, and the display power of the display screen is reduced.

[0075] It should be understood that the content described in this part is not intended to identify key or important features of the embodiments of the present application, nor is it used to limit the scope of the present application. Other features of the present application will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0076] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0077] Figure 1 A flowchart of a brightness control method of a display screen provided by an embodiment of the present application is shown in FIG. 1;

[0078] Figure 2 A flowchart of another brightness control method of a display screen provided by an embodiment of the present application is shown in FIG. 2;

[0079] Figure 3 A flowchart of still another brightness control method of a display screen provided by an embodiment of the present application is shown in FIG. 3;

[0080] Figure 4 A flowchart of still another brightness control method of a display screen provided by an embodiment of the present application is shown in FIG. 4;

[0081] Figure 5A flow chart of another display screen brightness control method provided by the embodiment of the present application;

[0082] Figure 6 A flow chart of another display screen brightness control method provided by the embodiment of the present application;

[0083] Figure 7 A flow chart of another display screen brightness control method provided by the embodiment of the present application;

[0084] Figure 8 A structural schematic diagram of a display screen brightness control device provided by the embodiment of the present application;

[0085] Figure 9 A structural schematic diagram of an electronic device provided by the embodiment of the present application. DETAILED DESCRIPTION

[0086] In order to make the personnel in the technical field better understand the present application scheme, the technical scheme in the embodiment of the present application will be described clearly and completely below by combining the drawings in the embodiment of the present application. Obviously, the described embodiment is only a part of the embodiment of the present application, not all the embodiments. Based on the embodiment in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0087] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily limit to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0088] Embodiment one

[0089] Figure 1 A flow chart of a display screen brightness control method provided by the embodiment of the present application, the brightness control method of the present embodiment is suitable for the case that the brightness of the display screen needs to be controlled, and the brightness control method can be executed by a display screen brightness control device, which can be realized by software and / or hardware and specifically configured in an electronic device.

[0090] Reference Figure 1The brightness control method of the display screen in the embodiment of the present application comprises:

[0091] S110, the first color required display brightness, the second color required display brightness and the third color required display brightness in the next to-be-displayed picture are obtained according to the display requirement.

[0092] The display screen in the embodiment comprises a plurality of pixel points, each pixel point comprises red, green and blue LED lamp beads, the color displayed by each pixel point is jointly determined by the brightness of the red, green and blue lamp beads in the pixel point, and the brightness of the red, green and blue lamp beads in each pixel point is determined by the display gray scale value of the pixel, for example, if a pixel point needs to display white color, the RGB values of the pixel point should be 255, 255 and 255 respectively, at this time, the brightness of the red, green and blue lamp beads in the pixel point is the brightest, if a pixel point needs to display black color, the RGB values of the pixel point should be 0, 0 and 0 respectively, at this time, the red, green and blue lamp beads in the pixel point are all not bright. In actual application, the picture displayed by the display screen needs to be replaced according to actual requirement, and the replacement of the picture displayed by the display screen is realized by controlling the display gray scale value of the red, green and blue LED lamp beads in each pixel point, therefore, it can be understood that different display pictures correspond to different red, green and blue display brightness, when the display picture is all white, the display brightness of all the LED lamp beads in the display screen is the maximum, and the corresponding driving display screen display power is also the maximum. The brightness control method of the display screen provided in the embodiment of the present application is essentially to reduce the display power of the display screen, therefore, the first color required display brightness, the second color required display brightness and the third color required display brightness in the next to-be-displayed picture are obtained before the display screen displays the next to-be-displayed picture, so as to determine the display brightness before the to-be-displayed picture is displayed, and then determine the display power, which can avoid the situation that the display screen displays abnormally due to the display power exceeding the actual power supply power. It should be noted that the first color, the second color and the third color respectively refer to the red, green and blue colors, the first color required display brightness refers to the display brightness sum of the first color sub-pixel in all the pixel points corresponding to the to-be-displayed picture, the second color required display brightness refers to the display brightness sum of the second color sub-pixel in all the pixel points corresponding to the to-be-displayed picture, and the third color required display brightness refers to the display brightness sum of the third color sub-pixel in all the pixel points corresponding to the to-be-displayed picture.

[0093] S120, the first color actual display brightness, the second color actual display brightness and the third color actual display brightness are determined according to the first color required display brightness, the second color required display brightness, the third color required display brightness and the maximum display threshold of the display screen.

[0094] It should be noted that the maximum display threshold can be determined by debugging, and the maximum display threshold needs to meet the condition: even if the to-be-displayed picture is all white, if the display brightness of the to-be-displayed picture is within the maximum display threshold, the display power of the to-be-displayed picture is necessarily lower than the actual power supply power, and the display screen displays normally. It can be understood that the display brightness of the to-be-displayed picture refers to the sum of the first color required display brightness, the second color required display brightness and the third color required display brightness.

[0095] The brightness control device of the display screen can determine the first color actual display brightness, the second color actual display brightness and the third color actual display brightness according to the first color required display brightness, the second color required display brightness, the third color required display brightness and the maximum display threshold of the display screen. The sum of the first color actual display brightness, the second color actual display brightness and the third color actual display brightness needs to be less than or equal to the maximum display threshold of the display screen, so that the actual display brightness of the to-be-displayed picture can be controlled within the maximum display threshold of the display screen, and the situation that the display power of the to-be-displayed picture is higher than the actual power supply power can be avoided.

[0096] S130, controlling the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0097] The brightness control method provided in the embodiment of the present application can control the actual display brightness of the to-be-displayed picture within the maximum display threshold of the display screen, reduce the display power of the display screen, and solve the problem that the existing display screen will cause display abnormality due to aging of the power supply and power reduction. The brightness control method provided in the embodiment of the present application can control the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness, so that the next to-be-displayed picture can be normally displayed on the display screen.

[0098] On the basis of the above-mentioned embodiment, Figure 2 the flowchart of another brightness control method of a display screen provided in the embodiment of the present application is shown in the figure, Figure 2 the embodiment shown in the figure details how to determine the first color actual display brightness, the second color actual display brightness and the third color actual display brightness, and reference is made to Figure 2 The brightness control method of the display screen in the embodiment of the present application comprises:

[0099] S210, obtaining the first color required display brightness, the second color required display brightness and the third color required display brightness in the next to-be-displayed picture according to the display requirement.

[0100] S220, determining a total demand display brightness according to the first color demand display brightness, the second color demand display brightness and the third color demand display brightness.

[0101] It should be noted that the total demand display brightness refers to the sum of the first color demand display brightness, the second color demand display brightness and the third color demand display brightness.

[0102] S230, determining an overall adjustment ratio according to the total demand display brightness and the maximum display threshold of the display screen.

[0103] When the total demand display brightness is higher than the maximum display threshold of the display screen, the total demand display brightness needs to be adjusted so that the adjusted actual display brightness total is not greater than the maximum display threshold of the display screen. Further, the brightness control method provided by the embodiment of the present application can determine an overall adjustment ratio according to the total demand display brightness and the maximum display threshold of the display screen, so as to adjust the total demand display brightness.

[0104] S240, determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the total demand display brightness and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the total demand display brightness and the overall adjustment ratio; and determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the total demand display brightness and the overall adjustment ratio.

[0105] It can be understood that the first color demand display brightness, the second color demand display brightness and the third color demand display brightness of the to-be-displayed picture are different, so that the to-be-displayed picture is displayed more accurately after adjustment, the embodiment of the present application determines the adjustment ratio corresponding to the color according to the demand display brightness of different colors, the total demand display brightness and the overall adjustment ratio.

[0106] S250, determining the first color actual display brightness according to the first color demand display brightness and the first adjustment ratio, determining the second color actual display brightness according to the second color demand display brightness and the second adjustment ratio, and determining the third color actual display brightness according to the third color demand display brightness and the third adjustment ratio.

[0107] After the adjustment ratios corresponding to different colors are determined, the first color demand display brightness, the second color demand display brightness and the third color demand display brightness can be adjusted according to the determined first adjustment ratio, the second adjustment ratio and the third adjustment ratio, so as to obtain the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0108] S260, controlling the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0109] Compared with the scheme that the display brightnesses of the three colors of the display screen are adjusted according to the same proportion, the technical scheme of the embodiment first determines the overall adjustment proportion according to the total display brightness and the maximum display threshold of the display screen, then determines the adjustment proportion corresponding to each color according to the required display brightness of each color, the total required display brightness and the overall adjustment proportion, and finally determines the first color actual display brightness, the second color actual display brightness and the third color actual display brightness according to the adjustment proportions corresponding to the different colors, so that the adjustment of the display brightnesses of the three colors of the display screen is more accurate, and the display of the adjusted to-be-displayed picture is more accurate.

[0110] On the basis of the above embodiment, Figure 3 a flowchart of another display screen brightness control method provided by the embodiment of the present application is provided, Figure 3 the embodiment shown in the figure is described in detail as to how to determine the overall adjustment proportion and how to determine the first adjustment proportion, the second adjustment proportion and the third adjustment proportion, and reference is made to Figure 3 The display screen brightness control method in the embodiment of the present application comprises:

[0111] S310, obtaining the first color required display brightness, the second color required display brightness and the third color required display brightness in the next to-be-displayed picture according to the display requirement.

[0112] S320, determining the total required display brightness according to the first color required display brightness, the second color required display brightness and the third color required display brightness.

[0113] S330, determining the overall adjustment proportion according to the following correspondence:

[0114] Percent=1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein Percent represents the overall adjustment proportion, RGB_Total represents the total required display brightness, and RGB_Limit represents the maximum display threshold.

[0115] S340, determining the first adjustment proportion according to the following correspondence:

[0116] Rx=1-[(R_Total / RGB_Total)*Percent];

[0117] determining the second adjustment proportion according to the following correspondence:

[0118] Gx = 1 - [(G_Total / RGB_Total)*Percent];

[0119] The third adjustment ratio is determined according to the following correspondence relationship:

[0120] Bx = 1 - [(B_Total / RGB_Total)*Percent];

[0121] Wherein, Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Bx represents the third adjustment ratio, and B_Total represents the third color demand display brightness.

[0122] S350, the first color actual display brightness is determined according to the first color demand display brightness and the first adjustment ratio, the second color actual display brightness is determined according to the second color demand display brightness and the second adjustment ratio, and the third color actual display brightness is determined according to the third color demand display brightness and the third adjustment ratio.

[0123] S360, the display screen displays the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0124] The embodiment provides specific calculation formulas for determining the overall adjustment ratio, the first adjustment ratio, the second adjustment ratio and the third adjustment ratio.

[0125] On the basis of the above embodiment, the display screen comprises first color light emitting elements, second color light emitting elements and third color light emitting elements, and the light emitting efficiencies of the first color light emitting elements, the second color light emitting elements and the third color light emitting elements are different, Figure 4 The embodiment provides another flowchart of the brightness control method of the display screen, Figure 4 The embodiment provides another method for determining the first adjustment ratio, the second adjustment ratio and the third adjustment ratio, and the method is described with reference to Figure 4 The brightness control method of the display screen in the embodiment comprises:

[0126] S410, the first color demand display brightness, the second color demand display brightness and the third color demand display brightness in the next to-be-displayed picture are acquired according to display requirements.

[0127] S420, the demand display brightness total is determined according to the first color demand display brightness, the second color demand display brightness and the third color demand display brightness.

[0128] S430, the overall adjustment ratio is determined according to the following correspondence relationship:

[0129] Percent = 1 - (RGB_Total - RGB_Limit) / RGB_Limit, wherein Percent represents the overall adjustment ratio, RGB_Total represents the total of the demand display luminance, and RGB_Limit represents the maximum display threshold.

[0130] S440, determining a first adjustment ratio of the first color demand display luminance according to the first color demand display luminance, the total of the demand display luminance, the first gain parameter and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display luminance according to the second color demand display luminance, the total of the demand display luminance, the second gain parameter and the overall adjustment ratio; and determining a third adjustment ratio of the third color demand display luminance according to the third color demand display luminance, the total of the demand display luminance, the third gain parameter and the overall adjustment ratio.

[0131] Specifically, the first adjustment ratio is determined according to the following correspondence relationship:

[0132] Rx = 1 - {[(R_Total / RGB_Total) + Ry] * Percent};

[0133] The second adjustment ratio is determined according to the following correspondence relationship:

[0134] Gx = 1 - {[(G_Total / RGB_Total) + Gy] * Percent};

[0135] The third adjustment ratio is determined according to the following correspondence relationship:

[0136] Bx = 1 - {[(B_Total / RGB_Total) + By] * Percent};

[0137] wherein Rx represents the first adjustment ratio, R_Total represents the first color demand display luminance, Ry represents the first gain parameter, Gx represents the second adjustment ratio, G_Total represents the second color demand display luminance, Gy represents the second gain parameter, Bx represents the third adjustment ratio, B_Total represents the third color demand display luminance, and By represents the third gain parameter; wherein the luminous efficiency of the first color light emitting element is greater than the luminous efficiency of the second color light emitting element and the third color light emitting element, 0 ≤ Gy < Ry, and 0 ≤ By < Ry.

[0138] Since the luminous efficiencies of the light emitting elements of different colors in the display screen are different, the luminous efficiency of the light emitting element with high luminous efficiency needs to be increased when adjusting, so that the final display screen can display more accurate pictures.

[0139] S450, determine the first color actual display brightness according to the first color demand display brightness and the first adjustment ratio, determine the second color actual display brightness according to the second color demand display brightness and the second adjustment ratio, and determine the third color actual display brightness according to the third color demand display brightness and the third adjustment ratio.

[0140] S460, control the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0141] The technical scheme of the embodiment can set different gain parameters according to the light emitting efficiencies of different color light emitting elements, the higher the light emitting efficiency, the greater the gain parameter, the greater the down-regulation range, and the more accurate the finally displayed picture.

[0142] On the basis of the above embodiment, the display screen comprises first color light emitting elements, second color light emitting elements and third color light emitting elements, the number of the first color light emitting elements, the second color light emitting elements and the third color light emitting elements is different, Figure 5 The flowchart of another display screen brightness control method provided by the embodiment of the present application is shown in the figure, Figure 5 The embodiment shown provides another method for determining the first adjustment ratio, the second adjustment ratio and the third adjustment ratio, referring to Figure 5 The display screen brightness control method in the embodiment of the present application comprises:

[0143] S510, obtain the first color demand display brightness, the second color demand display brightness and the third color demand display brightness in the next to-be-displayed picture according to the display demand.

[0144] S520, determine the demand display brightness total according to the first color demand display brightness, the second color demand display brightness and the third color demand display brightness.

[0145] S530, determine the overall adjustment ratio according to the following corresponding relationship:

[0146] Percent = 1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein, Percent represents the overall adjustment ratio, RGB_Total represents the demand display brightness total, and RGB_Limit represents the maximum display threshold.

[0147] S540, determining a first adjustment ratio of the first color required display brightness according to the first color required display brightness, the total of required display brightness, the fourth gain parameter and the overall adjustment ratio; determining a second adjustment ratio of the second color required display brightness according to the second color required display brightness, the total of required display brightness, the fifth gain parameter and the overall adjustment ratio; determining a third adjustment ratio of the third color required display brightness according to the third color required display brightness, the total of required display brightness, the sixth gain parameter and the overall adjustment ratio.

[0148] Specifically, the first adjustment ratio is determined according to the following corresponding relationship:

[0149] Rx=1-{[(R_Total / RGB_Total)+Rz]*Percent};

[0150] The second adjustment ratio is determined according to the following corresponding relationship:

[0151] Gx=1-{[(G_Total / RGB_Total)+Gz]*Percent};

[0152] The third adjustment ratio is determined according to the following corresponding relationship:

[0153] Bx=1-{[(B_Total / RGB_Total)+Bz]*Percent};

[0154] Wherein, Rx represents the first adjustment ratio, R_Total represents the first color required display brightness, Rz represents the fourth gain parameter, Gx represents the second adjustment ratio, G_Total represents the second color required display brightness, Gz represents the fifth gain parameter, Bx represents the third adjustment ratio, B_Total represents the third color required display brightness, and Bz represents the sixth gain parameter; wherein, the number of the second color light emitting elements is greater than the number of the first color light emitting elements and the third color light emitting elements, 0≤Rz

[0155] Because the number of light emitting elements of different colors in the display screen is different, the number of light emitting elements with more quantity needs to increase the down-regulation amplitude when adjusting, so that the final display screen can display more accurate picture.

[0156] S550, determining a first adjustment ratio of the first color required display brightness according to the first color required display brightness, the total of required display brightness, the fourth gain parameter and the overall adjustment ratio; determining a second adjustment ratio of the second color required display brightness according to the second color required display brightness, the total of required display brightness, the fifth gain parameter and the overall adjustment ratio; determining a third adjustment ratio of the third color required display brightness according to the third color required display brightness, the total of required display brightness, the sixth gain parameter and the overall adjustment ratio.

[0157] S560, controlling the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0158] The technical solution of the embodiment can set different gain parameters according to the number of different color light emitting elements, the more the number, the greater the gain parameter, the greater the down-regulation amplitude, and the more accurate the finally displayed picture.

[0159] On the basis of the above embodiment, Figure 6 A flowchart of another display screen brightness control method provided by the embodiment of the application is shown in Figure 6 The embodiment shown in the figure details how to determine the required display brightness sum and how to determine the first color actual display brightness, the second color actual display brightness and the third color actual display brightness, for reference Figure 6 The display screen brightness control method in the embodiment of the application comprises:

[0160] S610, obtaining the first color required display brightness, the second color required display brightness and the third color required display brightness in the next to-be-displayed picture according to the display requirement.

[0161] S620, determining the required display brightness sum according to the following correspondence:

[0162] RGB_Total=R_Total+G_Total+B_Total, wherein RGB_Total represents the required display brightness sum, R_Total represents the first color required display brightness, G_Total represents the second color required display brightness, and B_Total represents the third color required display brightness.

[0163] S630, determining the overall adjustment ratio according to the required display brightness sum and the maximum display threshold of the display screen.

[0164] S640, determining the first adjustment ratio of the first color required display brightness according to the first color required display brightness, the required display brightness sum and the overall adjustment ratio; determining the second adjustment ratio of the second color required display brightness according to the second color required display brightness, the required display brightness sum and the overall adjustment ratio; and determining the third adjustment ratio of the third color required display brightness according to the third color required display brightness, the required display brightness sum and the overall adjustment ratio.

[0165] S650, determining the first color actual display brightness according to the following correspondence:

[0166] R_Total'=R_Total*Rx;

[0167] determining the second color actual display brightness according to the following correspondence:

[0168] G_Total' = G_Total * Gx;

[0169] The third color actual display brightness is determined according to the following correspondence relationship:

[0170] B_Total' = B_Total * Bx;

[0171] Wherein, the first color actual display brightness is represented by R_Total', the first adjustment ratio is represented by Rx, the second color actual display brightness is represented by G_Total', the second adjustment ratio is represented by Gx, the third color actual display brightness is represented by B_Total', and the third adjustment ratio is represented by Bx.

[0172] S660, the display screen displays the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0173] The embodiment provides specific calculation formulas for determining the required display brightness sum, the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0174] On the basis of the above embodiment, Figure 7 The flowchart of another display screen brightness control method provided by the embodiment of the present application is shown in the figure, Figure 7 The flowchart of the display screen brightness control method is enriched in the embodiment shown in the figure, and reference Figure 7 The display screen brightness control method in the embodiment of the present application comprises:

[0175] S710, the first color required display brightness, the second color required display brightness and the third color required display brightness in the next to-be-displayed picture are obtained according to display requirements.

[0176] S720, the first color actual display brightness, the second color actual display brightness and the third color actual display brightness are determined according to the first color required display brightness, the second color required display brightness, the third color required display brightness and the maximum display threshold of the display screen.

[0177] S730, the correspondence relationship between the first color required display brightness and the first color actual display brightness is established and stored, the correspondence relationship between the second color required display brightness and the second color actual display brightness is established and stored, and the correspondence relationship between the third color required display brightness and the third color actual display brightness is established and stored.

[0178] S740, the display screen displays the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0179] The embodiment establishes the correspondence relationship between the required display brightness and the actual display brightness of different colors by step S730 and stores it, so that the stored correspondence relationship can be directly called when the same display screen is displayed next time, and it is not necessary to recalculate the actual display brightness of each color.

[0180] Embodiment Two

[0181] The embodiment of the present application provides a brightness control device of a display screen, which comprises:

[0182] The requirement display brightness acquisition module 10 is used for acquiring the first color requirement display brightness, the second color requirement display brightness and the third color requirement display brightness in the next to-be-displayed screen according to display requirements.

[0183] The actual display brightness determination module 20 is used for determining the first color actual display brightness, the second color actual display brightness and the third color actual display brightness according to the first color requirement display brightness, the second color requirement display brightness, the third color requirement display brightness and the maximum display threshold of the display screen.

[0184] The display control module 30 is used for controlling the display screen to display the next to-be-displayed screen according to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness.

[0185] The brightness control device provided by the embodiment of the present application can execute the brightness control method of the display screen provided by any embodiment of the present application, and has the function modules and beneficial effects corresponding to the execution method.

[0186] Embodiment Three

[0187] Figure 9 A structural schematic diagram of an electronic device 800 that can be used to implement embodiments of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptops, desktops, tablets, personal digital assistants, servers, blade servers, mainframes, and other appropriate computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular telephones, smart phones, wearable devices (e.g., headsets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions, are meant to be examples only, and are not intended to limit the implementations of the present application described and / or claimed in this document.

[0188] As Figure 9As shown, the electronic device 800 includes at least one processor 801, and a memory, such as a read-only memory (ROM) 802, a random access memory (RAM) 803, etc., connected to the at least one processor 801 in communication. The memory stores computer programs executable by the at least one processor 801, and the processor 801 can perform various appropriate actions and processes according to the computer programs stored in the read-only memory (ROM) 802 or loaded from the storage unit 808 into the random access memory (RAM) 803. In the RAM 803, various programs and data required for the operation of the electronic device 800 can also be stored. The processor 801, the ROM 802, and the RAM 803 are connected to each other through a bus 804. An input / output (I / O) interface 805 is also connected to the bus 804.

[0189] A plurality of components in the electronic device 800 are connected to the I / O interface 805, including an input unit 806, such as a keyboard, a mouse, etc., an output unit 807, such as various types of displays, a speaker, etc., a storage unit 808, such as a magnetic disk, an optical disk, etc., and a communication unit 809, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 809 allows the electronic device 800 to exchange information / data with other devices through a computer network, such as the Internet, and / or various telecommunication networks.

[0190] The processor 801 can be various general-purpose and / or special-purpose processing components having processing and computing capabilities. Some examples of the processor 801 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 801 performs various methods and processes described above, such as the brightness control method of the display screen.

[0191] In some embodiments, the brightness control method of the display screen can be implemented as a computer program tangibly embodied in a computer readable storage medium, such as the storage unit 808. In some embodiments, part or all of the computer program can be loaded and / or installed on the electronic device 800 via the ROM 802 and / or the communication unit 809. When the computer program is loaded into the RAM 803 and executed by the processor 801, one or more steps of the brightness control method of the display screen described above can be performed. Alternatively, in other embodiments, the processor 801 can be configured to perform the brightness control method of the display screen by any other appropriate means, such as by means of firmware.

[0192] The various embodiments of the systems and techniques described above can be implemented in digital electronic circuitry, integrated circuitry, a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), a system on a chip (SOC), a load programmable logic device (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include implementation in one or more computer programs that are executable and / or interpretable on a programmable system including at least one programmable processor, which can be special or general purpose, coupled to receive data and instructions from, and to transmit data and instructions to, a storage system, at least one input device, and at least one output device.

[0193] Computer programs used to implement the processes of the application can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the computer program, when executed, can cause instructions defined in the flow charts and / or block diagrams to be implemented. The computer program can be executed entirely on a machine, partially on a machine, partially on a machine as a standalone software package and partially on a remote machine or entirely on a remote machine or server.

[0194] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store computer programs for use by or in connection with an instruction execution system, apparatus, or device. Computer-readable storage media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium will include one or more lines of electrical connections, portable computer disks, hard disk drives, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or Flash memory), optical fibers, portable compact disc read-only memories (CD-ROMs), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0195] To provide for interaction with a user, the systems and techniques described here can be implemented on an electronic device having a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can be used to provide for interaction with a user as well; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form, including acoustic, speech, or tactile input.

[0196] The systems and techniques described here can be implemented in a computing system that includes a back end component (e.g., as a data server), or that includes a middleware component (e.g., an application server), or that includes a front end component (e.g., a user computer having a graphical user interface or a Web browser through which a user can interact with an implementation of the systems and techniques described here), or any combination of such back end, middleware, or front end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0197] The computing system can include clients and servers. A client and server are generally remote from each other and typically interact through a communication network. The relationship of client and server arises by virtue of computer programs running on the respective computers and having a client-server relationship to each other. A server can be a cloud server, also known as a cloud computing server or cloud host, which is a host product in the cloud computing service system, to solve the defects of large management difficulty and weak business scalability in traditional physical host and VPS service.

[0198] It should be understood that the various forms of flow shown above can be re-ordered, added to, or deleted from without departing from the scope of the present disclosure. For example, the steps recited in the present disclosure can be executed in parallel, executed in sequence, or executed in a different order, as long as the desired results of the present disclosure are achieved, and the present disclosure is not limited herein.

[0199] The specific embodiments described above are not intended to be limiting, and persons skilled in the art will appreciate that various modifications, combinations, sub-combinations and alternatives can be made to the specific embodiments without departing from the spirit and principles of the disclosure. Accordingly, the disclosure is not limited to the specific embodiments described above, but only by the scope of the appended claims.

Claims

1. A method of brightness control of a display screen, characterized by, The method comprises the following steps: According to the first color requirement display brightness, the second color requirement display brightness, the third color requirement display brightness and the maximum display threshold of the display screen, determining the first color actual display brightness, the second color actual display brightness and the third color actual display brightness; the sum of the first color actual display brightness, the second color actual display brightness and the third color actual display brightness is less than or equal to the maximum display threshold of the display screen; According to the first color actual display brightness, the second color actual display brightness and the third color actual display brightness, controlling the display screen to display the next to-be-displayed picture. According to the first color requirement display brightness, the second color requirement display brightness, the third color requirement display brightness and the maximum display threshold of the display screen, determining the first color actual display brightness, the second color actual display brightness and the third color actual display brightness, comprises:

2. The luminance control method according to claim 1, wherein According to the first color requirement display brightness, the second color requirement display brightness, the third color requirement display brightness, determining the total of the requirement display brightness; According to the total of the requirement display brightness and the maximum display threshold of the display screen, determining the overall adjustment ratio; According to the first color requirement display brightness, the total of the requirement display brightness and the overall adjustment ratio, determining the first adjustment ratio of the first color requirement display brightness; according to the second color requirement display brightness, the total of the requirement display brightness and the overall adjustment ratio, determining the second adjustment ratio of the second color requirement display brightness; according to the third color requirement display brightness, the total of the requirement display brightness and the overall adjustment ratio, determining the third adjustment ratio of the third color requirement display brightness; According to the first color requirement display brightness and the first adjustment ratio, determining the first color actual display brightness; according to the second color requirement display brightness and the second adjustment ratio, determining the second color actual display brightness; according to the third color requirement display brightness and the third adjustment ratio, determining the third color actual display brightness. According to the total of the requirement display brightness and the maximum display threshold of the display screen, determining the overall adjustment ratio, comprises:

3. The luminance control method according to claim 2, wherein According to the following corresponding relationship, determining the overall adjustment ratio: Percent=1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein, Percent represents the overall adjustment ratio, RGB_Total represents the total of the requirement display brightness, and RGB_Limit represents the maximum display threshold; ​ determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the demand display brightness sum and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the demand display brightness sum and the overall adjustment ratio; determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the demand display brightness sum and the overall adjustment ratio, comprising: determining the first adjustment ratio according to the following correspondence relationship: Rx=1-[(R_Total / RGB_Total)×Percent]; determining the second adjustment ratio according to the following correspondence relationship: Gx=1-[(G_Total / RGB_Total)×Percent]; determining the third adjustment ratio according to the following correspondence relationship: Bx=1-[(B_Total / RGB_Total)×Percent]; wherein, Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Bx represents the third adjustment ratio, and B_Total represents the third color demand display brightness.

4. The luminance control method according to claim 2, wherein The display screen comprises a first color light emitting element, a second color light emitting element and a third color light emitting element; the light emitting efficiencies of the first color light emitting element, the second color light emitting element and the third color light emitting element are different; determining an overall adjustment ratio according to the demand display brightness sum and a maximum display threshold of a display screen, comprising: determining the overall adjustment ratio according to the following correspondence relationship: Percent=1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein, Percent represents the overall adjustment ratio, RGB_Total represents the demand display brightness sum, and RGB_Limit represents the maximum display threshold; determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the demand display brightness sum and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the demand display brightness sum and the overall adjustment ratio; determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the demand display brightness sum and the overall adjustment ratio, comprising: determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the demand display brightness sum, a first gain parameter and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the demand display brightness sum, a second gain parameter and the overall adjustment ratio; determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the demand display brightness sum, a third gain parameter and the overall adjustment ratio: determining the first adjustment ratio according to the following correspondence relationship: Rx=1-{[(R_Total / RGB_Total)+Ry]×Percent}; determining the second adjustment ratio according to the following correspondence relationship: Gx=1-{[(G_Total / RGB_Total)+Gy]×Percent}; determining the third adjustment ratio according to the following correspondence relationship: Bx=1-{[(B_Total / RGB_Total)+By]×Percent}; wherein Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Ry represents the first gain parameter, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Gy represents the second gain parameter, Bx represents the third adjustment ratio, B_Total represents the third color demand display brightness, and By represents the third gain parameter; wherein the first color light emitting element has a light emitting efficiency greater than that of the second color light emitting element and the third color light emitting element, 0≤Gy 5. The luminance control method according to claim 2, wherein The display screen comprises a first color light emitting element, a second color light emitting element and a third color light emitting element; the first color light emitting element, the second color light emitting element and the third color light emitting element have different numbers of settings; determining an overall adjustment ratio according to the demand display brightness sum and a maximum display threshold of the display screen, comprising: determining the overall adjustment ratio according to the following correspondence relationship: Percent=1-(RGB_Total-RGB_Limit) / RGB_Limit, wherein Percent represents the overall adjustment ratio, RGB_Total represents the demand display brightness sum, and RGB_Limit represents the maximum display threshold; determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the demand display brightness sum and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the demand display brightness sum and the overall adjustment ratio; determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the demand display brightness sum and the overall adjustment ratio, comprising: determining a first adjustment ratio of the first color demand display brightness according to the first color demand display brightness, the demand display brightness sum, a fourth gain parameter and the overall adjustment ratio; determining a second adjustment ratio of the second color demand display brightness according to the second color demand display brightness, the demand display brightness sum, a fifth gain parameter and the overall adjustment ratio; determining a third adjustment ratio of the third color demand display brightness according to the third color demand display brightness, the demand display brightness sum, a sixth gain parameter and the overall adjustment ratio: determining the first adjustment ratio according to the following corresponding relationship: Rx=1-{[(R_Total / RGB_Total)+ Rz]×Percent}; determining the second adjustment ratio according to the following corresponding relationship: Gx=1-{[(G_Total / RGB_Total)+Gz]×Percent}; determining the third adjustment ratio according to the following corresponding relationship: Bx=1-{[(B_Total / RGB_Total)+Bz]×Percent}; wherein Rx represents the first adjustment ratio, R_Total represents the first color demand display brightness, Rz represents the fourth gain parameter, Gx represents the second adjustment ratio, G_Total represents the second color demand display brightness, Gz represents the fifth gain parameter, Bx represents the third adjustment ratio, B_Total represents the third color demand display brightness, and Bz represents the sixth gain parameter; wherein the number of the second color light emitting elements is greater than the number of the first color light emitting elements and the third color light emitting elements, 0≤Rz 6. The luminance control method according to claim 2, wherein determining a demand display brightness sum according to the first color demand display brightness, the second color demand display brightness and the third color demand display brightness, comprising: determining the demand display brightness sum according to the following corresponding relationship: RGB_Total=R_Total+G_Total+B_Total, wherein RGB_Total represents the demand display brightness sum, R_Total represents the first color demand display brightness, G_Total represents the second color demand display brightness, and B_Total represents the third color demand display brightness; determining a first color actual display brightness according to the first color demand display brightness and the first adjustment ratio, determining a second color actual display brightness according to the second color demand display brightness and the second adjustment ratio, and determining a third color actual display brightness according to the third color demand display brightness and the third adjustment ratio, comprising: determining the first color actual display brightness according to the following corresponding relationship: R_Total’=R_Total×Rx; determining the second color actual display brightness according to the following corresponding relationship: G_Total’=G_Total×Gx; determining the third color actual display brightness according to the following corresponding relationship: B_Total' = B_Total x Bx; wherein R_Total' represents the first color actual display brightness, Rx represents the first adjustment ratio, G_Total' represents the second color actual display brightness, Gx represents the second adjustment ratio, B_Total' represents the third color actual display brightness, and Bx represents the third adjustment ratio.

7. The luminance control method according to claim 1, wherein After determining the first color actual display brightness, the second color actual display brightness, and the third color actual display brightness according to the first color required display brightness, the second color required display brightness, the third color required display brightness, and the maximum display threshold of the display screen, the method further comprises: establishing a corresponding relationship between the first color required display brightness and the first color actual display brightness and storing the corresponding relationship, establishing a corresponding relationship between the second color required display brightness and the second color actual display brightness and storing the corresponding relationship, and establishing a corresponding relationship between the third color required display brightness and the third color actual display brightness and storing the corresponding relationship.

8. A brightness control device for a display screen, characterized by The method comprises: obtaining, according to a display requirement, a first color required display brightness, a second color required display brightness, and a third color required display brightness in a next to-be-displayed picture; determining a first color actual display brightness, a second color actual display brightness, and a third color actual display brightness according to the first color required display brightness, the second color required display brightness, the third color required display brightness, and a maximum display threshold of a display screen, wherein a sum of the first color actual display brightness, the second color actual display brightness, and the third color actual display brightness is less than or equal to the maximum display threshold of the display screen; controlling the display screen to display the next to-be-displayed picture according to the first color actual display brightness, the second color actual display brightness, and the third color actual display brightness.

9. An electronic device, comprising: The electronic device comprises: one or more processors; a storage device configured to store one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors are caused to implement the brightness control method according to any one of claims 1-7.

10. A storage medium having stored thereon a computer program, characterized in that The program is executed by the processor to implement the brightness control method according to any one of claims 1-7.

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