Picture display method and device

Abstract

The invention provides a picture display method and device, belongs to the technical field of display, is applied to a display device and aims at improving the display effect of the display device under different pictures, and the method comprises the steps that corresponding initial electrical parameters for driving a first picture and a second picture under the same gray scale are acquired; the initial electrical parameters are iteratively optimized, and each time of optimization comprises the steps that based on the current initial electrical parameters, a display device is driven to display a first picture and a second picture respectively, and first display brightness when the first picture is displayed and second display brightness and color temperature when the second picture is displayed are collected respectively; correcting the initial electrical parameter based on a first difference value between the first display brightness and the first target display brightness, a second difference value between the second display brightness and the second target display brightness, and a third difference value between the color temperature and the target color temperature; and driving a display device to perform picture display based on the initial electrical parameters obtained by the last optimization.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to a method and device for displaying images. Background Art

[0002] After a traditional mini LED product is manufactured, it is necessary to perform display screen gamma correction. Gamma correction is used to adjust the value output by the driving chip, that is, the actual display brightness, at a certain series of gray levels to meet the requirements of the gamma curve. Summary of the Invention

[0003] Based on the content of the background art, the present disclosure provides a method and device for displaying images.

[0004] In a first aspect of the present disclosure, there is provided a method for displaying images, which is applied to a display device and includes:

[0005] Obtain initial electrical parameters corresponding to a first image and a second image at the same gray level; wherein, the first image includes a red image, a green image or a blue image, the second image is a white image, and the initial electrical parameters are used to drive the pixels of the display device to emit light;

[0006] Iteratively optimize the initial electrical parameters, where each optimization includes:

[0007] Based on the initial electrical parameters of the current iteration, drive the display device to display the first image and the second image respectively, and collect the first display brightness when displaying the first image, the second display brightness when displaying the second image, and the color temperature;

[0008] Based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature, correct the initial electrical parameters; wherein, the first target display brightness represents the ideal display brightness of the first image, and the second target display brightness represents the ideal display brightness of the second image;

[0009] Based on the initial electrical parameters obtained from the last optimization, drive the display device to perform image display.

[0010] Optionally, the correcting the initial electrical parameters based on the first difference between the first display brightness and the first target display brightness, the second difference between the second display brightness and the second target display brightness, and the third difference between the color temperature and the target color temperature includes:

[0011] Based on the first difference, the second difference, and the third difference, determine the total gap;

[0012] Modify the initial electrical parameters according to the total difference.

[0013] Optionally, it includes multiple initial electrical parameters, and the multiple initial electrical parameters respectively correspond to multiple gray levels. Modifying the initial electrical parameters based on the first difference between the first display brightness and the first target display brightness, the second difference between the second display brightness and the second target display brightness, and the third difference between the color temperature and the target color temperature includes:

[0014] Determine the first difference, the second difference, and the third difference corresponding to the initial electrical parameters of each gray level;

[0015] Modify the multiple initial electrical parameters based on the multiple first differences, the multiple second differences, and the multiple third differences to obtain the modified electrical parameters corresponding to each gray level.

[0016] Optionally, modifying the initial electrical parameters according to the total difference includes:

[0017] Determine whether the total difference is less than a preset threshold;

[0018] If so, end the modification of the initial electrical parameters;

[0019] If not, modify the initial electrical parameters according to the first difference, the second difference, and the third difference.

[0020] Optionally, modifying the initial electrical parameters according to the first difference, the second difference, and the third difference includes:

[0021] Determine the first ratio between the first difference and the first target display brightness, the second ratio between the second difference and the second target display brightness, and the third ratio between the third difference and the target color temperature of the second picture;

[0022] Modify the initial electrical parameters based on the first ratio, the second ratio, and the third ratio.

[0023] Optionally, modifying the initial electrical parameters based on the first difference between the first display brightness and the first target display brightness, the second difference between the second display brightness and the second target display brightness, and the third difference between the color temperature and the target color temperature includes:

[0024] Determine the first weight value corresponding to the first difference according to the gamma fitting degree corresponding to the first picture;

[0025] Determine the second weight value corresponding to the second difference according to the gamma fitting degree corresponding to the second picture;

[0026] Determine a third weight value corresponding to the third difference according to the color temperature matching requirement of the second screen;

[0027] Based on the first difference, the second difference, the third difference, the first weight value, the second weight value, and the third weight value, correct the initial electrical parameters.

[0028] Optionally, the obtaining of the initial electrical parameters corresponding to the first screen and the second screen includes:

[0029] Obtain a first theoretical electrical parameter required to drive the first screen when the display brightness of the first screen is a first target display brightness corresponding to the current gray level, and obtain a second theoretical electrical parameter required to drive the second screen when the display brightness of the second screen is a second target display brightness corresponding to the current gray level;

[0030] Obtain a third display brightness of the first screen driven by the first theoretical electrical parameter, and a fourth display brightness of the second screen driven by the second theoretical electrical parameter;

[0031] Based on the difference between the third display brightness and the first target display brightness corresponding to the current gray level, correct the first theoretical electrical parameter to obtain a first optimal electrical parameter;

[0032] Based on the difference between the fourth display brightness and the second target display brightness corresponding to the current gray level, correct the second theoretical electrical parameter to obtain a second optimal electrical parameter;

[0033] Determine the initial electrical parameters according to the first optimal electrical parameter and the second optimal electrical parameter.

[0034] Optionally, the obtaining of the first theoretical electrical parameter required to drive the first screen when the display brightness of the first screen is a first target display brightness corresponding to the current gray level includes:

[0035] Obtain a plurality of preset electrical parameters corresponding to the current gray level;

[0036] Respectively obtain fifth display brightnesses of the first screen driven by the plurality of preset electrical parameters;

[0037] Construct a first correlation relationship between the fifth display brightness and the preset electrical parameters, and determine the first theoretical electrical parameter according to the first correlation relationship and the first target display brightness corresponding to the current gray level;

[0038] The obtaining of the second theoretical electrical parameter required to drive the second screen when the display brightness of the second screen is a second target display brightness corresponding to the current gray level includes:

[0039] Determine the sixth display brightness of the second screen corresponding to each of the preset electrical parameters according to the multiple fifth display brightnesses;

[0040] Construct a second correlation relationship between the sixth display brightness and the preset electrical parameter, and determine the second theoretical electrical parameter according to the second correlation relationship and the second target display brightness corresponding to the current gray level.

[0041] Optionally, the determining the initial electrical parameter according to the first optimal electrical parameter and the second optimal electrical parameter includes:

[0042] Construct a target electrical parameter range according to the first optimal electrical parameter and the second optimal electrical parameter;

[0043] Determine the initial electrical parameter from the target electrical parameter range.

[0044] In a second aspect of the present disclosure, there is provided a screen display device, which is applied to a display device and includes:

[0045] An acquisition module, configured to acquire initial electrical parameters corresponding to a first screen and a second screen at the same gray level; wherein, the first screen includes a red screen, a green screen or a blue screen, the second screen is a white screen, and the initial electrical parameter is used to drive the pixels of the display device to emit light;

[0046] An optimization module, configured to iteratively optimize the initial electrical parameter, where each optimization includes: based on the initial electrical parameter of the current time, driving the display device to display the first screen and the second screen respectively, and respectively collecting the first display brightness when displaying the first screen, the second display brightness when displaying the second screen, and the color temperature; correcting the initial electrical parameter based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature; wherein, the first target display brightness represents the ideal display brightness of the first screen, and the second target display brightness represents the ideal display brightness of the second screen;

[0047] A display module, configured to drive the screen of the display device to be displayed based on the initial electrical parameter obtained from the last optimization.

[0048] The screen display method provided by the present disclosure includes: acquiring initial electrical parameters corresponding to a first screen and a second screen at the same gray level; wherein, the first screen includes a red screen, a green screen or a blue screen, the second screen is a white screen, and the initial electrical parameter is used to drive the pixels of the display device to emit light;

[0049] Iteratively optimize the initial electrical parameters, where each optimization includes: based on the initial electrical parameters of the current iteration, drive the display device to display the first picture and the second picture respectively, and collect the first display brightness when displaying the first picture, the second display brightness when displaying the second picture, and the color temperature; based on the first difference between the first display brightness and the first target display brightness, the second difference between the second display brightness and the second target display brightness, and the third difference between the color temperature and the target color temperature, correct the initial electrical parameters; where the first target display brightness represents the ideal display brightness of the first picture, and the second target display brightness represents the ideal display brightness of the second picture; based on the initial electrical parameters obtained from the last optimization, drive the picture of the display device to be displayed;

[0050] Thus, when iteratively optimizing the initial electrical parameters, the present disclosure jointly optimizes the initial electrical parameters according to the gaps between the display brightness and the ideal display brightness of the first picture, the display brightness and the ideal display brightness of the second picture, and the color temperature and the ideal color temperature of the second picture. In this way, the optimized driving electrical parameters can meet the brightness requirements of the red picture, the blue picture, and the green picture, and can also meet the brightness and color temperature requirements of the white picture.

[0051] The above description is only an overview of the technical solution of the present disclosure. In order to be able to understand the technical means of the present disclosure more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of the present disclosure more obvious and understandable, the following specifically describes the specific embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. It should be noted that the ratios in the drawings are only for illustration and do not represent the actual ratios.

[0053] Figure 1 Shows a flowchart of the steps of the picture display method provided by the embodiment of the present disclosure;

[0054] Figure 2 Shows a flowchart of the steps of the method for obtaining the initial electrical parameters in the embodiment of the present disclosure;

[0055] Figure 3 Shows a schematic flowchart of the picture display method provided by the embodiment of the present disclosure;

[0056] Figure 4 The structural schematic diagram of the screen display device provided by an embodiment of the present disclosure is shown. Detailed implementation manners

[0057] In order to make the above objects, features, and advantages of the present disclosure more obvious and understandable, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0058] Currently, the requirements for the display quality, display function, and display power consumption of display devices are getting higher and higher. The active-driven low-temperature polycrystalline mini LED (light emitting diode) display screen has characteristics such as low power consumption, low cost, and smaller pitch, making it the future development trend.

[0059] However, during the gamma correction of traditional mini LED display screens, specifically, the value output by the driving chip, that is, the actual displayed brightness, is adjusted under a certain series of gray levels to meet the requirements of the gamma curve. Currently, gamma correction can often only correct the brightness of the RGB screen or the white screen, and the accuracy guarantee for the white screen brightness is limited.

[0060] In view of this, an embodiment of the present disclosure provides a screen display method. By performing multiple iterative optimizations on the initial electrical parameters for driving the first screen and the second screen, during each optimization process, the initial electrical parameters are optimized according to the difference between the brightness of the first screen driven by the initial electrical parameters and the brightness and color temperature of the second screen and the required brightness and color temperature, so that the initial electrical parameters obtained after multiple optimizations can not only meet the brightness requirements of the first screen, but also meet the brightness requirements and color temperature requirements of the second screen.

[0061] Referring to Figure 1 , Figure 1 , the step flowchart of the screen display method provided by an embodiment of the present disclosure is shown. This screen display method is applied to a display device. The display device can be a direct-view mini LED. Among them, the direct-view mini LED emits light by directly driving the LEDs to display images. In the direct-view mini LED, a single LED lamp bead serves as a sub-pixel, and the brightness of the LED can be controlled by controlling the voltage of the LED, thereby realizing the control of the display brightness of the sub-pixel. As Figure 1 shown, the method specifically includes:

[0062] S101. Obtain the initial electrical parameters corresponding to the first screen and the second screen at the same gray level.

[0063] Among them, the first screen includes a red screen, a green screen, or a blue screen, the second screen is a white screen, and the initial electrical parameters are used to drive the pixels of the display device to emit light.

[0064] In this embodiment, the driving chip of the display device outputs the initial electrical parameters to drive the pixels of the display device to emit light. When driving different sub-pixels to emit light, the display device displays different screens. For example, when the driving chip drives the red sub-pixel to emit light, the display device displays a red screen; when the driving chip drives the green sub-pixel to emit light, the display device displays a green screen; when the driving chip drives the blue sub-pixel to emit light, the display device displays a blue screen; when the driving chip drives the red sub-pixel, the green sub-pixel, and the blue sub-pixel to emit light simultaneously, the display device displays a white screen. Among them, the initial electrical parameters can be the voltage value, current value, etc. required to drive the pixels.

[0065] In the conventional gamma correction process, the initial electrical parameters are first used to drive the display device to display a screen, the brightness of the displayed screen is collected and compared with the required brightness, and the electrical parameters are corrected according to the comparison result. Therefore, before correction, the initial electrical parameters can be obtained first. The initial electrical parameters can be randomly selected or determined according to the electrical parameters pre-stored in the driving chip of the display device. Among them, considering that the required similar brightness of the first screen or the second screen at different gray levels is different, the electrical parameters of the first screen and the second screen at the same gray level can be adjusted first to obtain the initial electrical parameters corresponding to each gray level. In this way, after correction, the initial electrical parameters at this gray level are the electrical parameters that make the first screen and the second screen have the required display brightness at this gray level.

[0066] In an example, when randomly selecting the initial electrical parameters, there may be a situation where the display brightness of the screen corresponding to the selected initial electrical parameters has a large gap with the required display brightness. Therefore, the selection range of the initial electrical parameters can be narrowed first, and then the initial electrical parameters can be determined, thereby reducing the iteration times of the initial electrical parameters and improving the correction efficiency. Specifically, an electrical parameter value can be determined according to the required display brightness of the first screen first, and then another electrical parameter value can be determined according to the required display brightness and color temperature of the second screen. Then, a parameter range can be determined according to the two electrical parameter values, and the initial electrical parameters can be determined from this parameter range for iterative optimization.

[0067] S102. Iteratively optimize the initial electrical parameters. Each optimization includes: based on the initial electrical parameters of the current iteration, driving the display device to display the first screen and the second screen respectively, and collecting the first display brightness when displaying the first screen, the second display brightness when displaying the second screen, and the color temperature; correcting the initial electrical parameters based on the first difference between the first display brightness and the first target display brightness, the second difference between the second display brightness and the second target display brightness, and the third difference between the color temperature and the target color temperature.

[0068] Among them, the first target display brightness represents the ideal display brightness of the first screen, the second target display brightness represents the ideal display brightness of the second screen. The ideal display brightness can be the display brightness of the screen of the display device required by the user, and the target color temperature can be the color temperature of the white screen required by the user.

[0069] Specifically, the process of each optimization is to optimize according to the differences between the actual display brightness of the first screen and the first target display brightness, the actual display brightness of the second screen and the second target display brightness, and the actual color temperature and the target color temperature. Therefore, after obtaining the initial electrical parameters, the initial electrical parameters can be used to drive the display device to display the screen, so as to facilitate the collection of the display brightness and color temperature of different screens, and correct the initial electrical parameters according to the differences between the actually collected display brightness, color temperature and the required display brightness, required color temperature. Among them, when correcting the initial electrical parameters, the sum of the first difference, the second difference and the third difference can be determined first, and it can be determined whether the initial electrical parameters need to be corrected according to this sum. When it is determined that the initial electrical parameters need to be corrected, they are corrected.

[0070] Among them, when correcting the initial electrical parameters, the percentage difference between the actual display brightness of the first screen and the first target display brightness, the percentage difference between the actual display brightness of the second screen and the second target display brightness, and the percentage difference between the color temperature and the target color temperature can be determined first, and the initial electrical parameters are corrected based on the screen with the largest percentage difference. For example, when it is determined that the percentage difference between the actual display brightness of the first screen and the first target display brightness is the largest, if the actual display brightness of the first screen is lower than the first target display brightness, the initial electrical parameters can be increased; if the actual display brightness of the first screen is higher than the first target display brightness, the initial electrical parameters can be decreased. It can be understood that the process of gamma correction is a process of correcting the electrical parameters of some gray levels. Then, for the gray levels that need to be adjusted, the above optimization process can be carried out for all of them, so that the screen displayed by the initial electrical parameters driving the display device under this part of the gray levels can better meet the gamma curve and color temperature requirements.

[0071] S103. Based on the initial electrical parameters obtained from the last optimization, drive the display device to perform screen display.

[0072] Specifically, the initial electrical parameters obtained through the optimal first optimization meet the maximum brightness requirement, gamma value requirement, and color temperature requirement. Using these initial electrical parameters to drive the display device for image display, both the first image and the second image can approach the ideal display brightness, improving the image display effect.

[0073] For the image display method provided by the embodiments of the present disclosure, after obtaining the initial electrical parameters for driving the first image and the second image at the same gray level, iterative optimization is performed on the initial electrical parameters. Since each optimization takes into account the display brightness requirement of the first image, the display brightness and color temperature requirements of the second image, when using the display device driven by the optimized initial electrical parameters for image display, it can not only meet the brightness requirement of the RGB image, but also meet the brightness and color temperature requirements of the white image.

[0074] In the present disclosure, the process of optimizing the initial electrical parameters is the process of gamma correction. Gamma correction is to adjust the electrical parameters output by the driving chip at a certain series of gray levels so that the display brightness of the image displayed by the driving display device can meet the requirements of the gamma curve. Thus, each gray level corresponds to an initial electrical parameter, and the above optimization method can be used to adjust the initial electrical parameters corresponding to each gray level. In this case, there are multiple initial electrical parameters, and the multiple initial electrical parameters correspond to multiple gray levels respectively. The specific process of correcting the initial electrical parameters for each gray level can be: First, determine the first difference, the second difference, and the third difference corresponding to the initial electrical parameter of each gray level; then, based on the multiple first differences, the multiple second differences, and the multiple third differences, correct the multiple initial electrical parameters to obtain the corrected electrical parameters corresponding to each gray level.

[0075] In this embodiment, each gray level corresponds to a first target display brightness, a second target display brightness, and a color temperature. After determining the initial electrical parameters corresponding to each gray level, determine the first difference, the second difference, and the third difference at each gray level. To facilitate the optimization of the initial electrical parameters, after determining the multiple first differences, the multiple second differences, and the multiple third differences, the initial electrical parameters of the multiple gray levels can be globally optimized according to the first difference, the second difference, and the third difference to obtain the corrected electrical parameters corresponding to each gray level.

[0076] In one embodiment, the process of correcting the initial electrical parameters according to the first difference, the second difference, and the third difference can be specifically: First, based on the first difference, the second difference, and the third difference, determine the total gap; then, according to the total gap, correct the initial electrical parameters.

[0077] Specifically, the sum of the first difference, the second difference, and the third difference can be determined as the total gap, which can indicate the overall gap between the first display brightness of the first picture and the first target display brightness, the second display brightness of the second picture and the second target display brightness, and the color temperature and the target color temperature. The smaller the total gap, the closer the display brightness of the first picture, the display brightness of the second picture, and the color temperature are to the user's requirements. Therefore, the initial electrical parameters can be corrected according to the total gap so that the first picture and the second picture corresponding to the corrected initial electrical parameters can be closer to the user's requirements.

[0078] In one embodiment, the specific process of correcting the initial electrical parameters according to the total gap can be: determining whether the total gap is less than a preset threshold; if so, ending the correction of the initial electrical parameters; if not, correcting the initial electrical parameters according to the first difference, the second difference, and the third difference.

[0079] In this embodiment, considering that the total gap can reflect the overall gap between the first display brightness of the first picture and the first target display brightness, the second display brightness of the second picture and the second target display brightness, and the color temperature and the target color temperature, and the smaller the overall gap, the closer the display picture driven by the initial electrical parameters can be to the user's requirements. Therefore, a preset threshold can be set, and by comparing the total gap with the preset threshold, it can be determined whether it is necessary to correct the initial electrical parameters.

[0080] Specifically, it can be determined whether the total gap is less than the preset threshold. If so, it means that the display brightness of the first picture driven by the initial electrical parameters is close to the first target display brightness, the display brightness of the second picture is close to the second target display brightness, and the color temperature is close to the target color temperature, then the correction of the initial electrical parameters is ended; if the total gap is greater than or equal to the preset threshold, it means that the gap between the display brightness of the first picture and the first target display brightness is large, or the gap between the display brightness of the second picture and the second target display brightness is large, or the gap between the color temperature and the target color temperature is large, then the initial electrical parameters need to be continuously adjusted.

[0081] It can be understood that the total difference determines the total difference between the display brightness of the first screen corresponding to each initial electrical parameter and the first target display brightness, the display brightness of the second screen and the second target display brightness, and the color temperature and the target color temperature. It does not indicate which one of the display brightness of the first screen, the display brightness of the second screen, or the color temperature difference causes the total difference to be greater than or equal to the preset threshold. Therefore, when it is determined that the initial electrical parameters need to be corrected according to the total difference, the difference ratios between the display brightness of the first screen, the display brightness of the second screen, and the color temperature and the target values can be determined respectively to determine the correction direction of the initial electrical parameters. The specific process can be as follows: First, determine the first ratio between the first difference and the first target display brightness, the second ratio between the second difference and the second target display brightness, and the third ratio between the third difference and the target color temperature; then, based on the first ratio, the second ratio, and the third ratio, correct the initial electrical parameters.

[0082] In this embodiment, the first ratio between the first difference and the first target display brightness can represent the difference ratio between the first display brightness and the first target display brightness, the second ratio between the second difference and the second target display brightness can represent the difference ratio between the second display brightness and the second target display brightness, and the difference ratio between the color temperature and the target color temperature can be determined by comparing the three ratios to determine the parameter with the largest difference.

[0083] Among them, if the first ratio is the largest, it means that the difference between the first display brightness and the first target display brightness is the largest, and the initial electrical parameters can be corrected according to the magnitude relationship between the first display brightness and the first target display brightness; if the second ratio is the largest, it means that the difference between the second display brightness and the second target display brightness is the largest, and the initial electrical parameters can be corrected according to the magnitude relationship between the second display brightness and the second target display brightness; if the third ratio is the largest, it means that the difference between the color temperature and the target color temperature is the largest, and the initial electrical parameters can be corrected according to the magnitude relationship between the color temperature and the target color temperature.

[0084] In an example, since the requirements corresponding to different screens are different, a weight value can be assigned to each difference according to different requirements to adjust the initial electrical parameters according to different requirements, so that the corrected initial electrical parameters can meet the requirements. Specifically, the first weight value corresponding to the first difference can be determined according to the gamma fitting degree corresponding to the first screen; the second weight value corresponding to the second difference can be determined according to the gamma fitting degree corresponding to the second screen; the third weight value corresponding to the third difference can be determined according to the color temperature matching requirement of the second screen; based on the first difference, the second difference, the third difference, the first weight value, the second weight value, and the third weight value, the initial electrical parameters are corrected.

[0085] In this embodiment, the gamma fitting degree characterizes the degree of coincidence between the gamma curve corresponding to the current first screen or second screen and the gamma curve requirement, and the color temperature matching requirement characterizes the degree of matching between the current color temperature and the target color temperature. The adjustment precision required for the display brightness and color temperature is characterized by the gamma fitting degree and the color temperature matching requirement. Furthermore, a higher weight value can be assigned to the display brightness or color temperature with high precision requirements, while a lower weight value can be assigned to the display brightness or color temperature with lower precision requirements. For example, when the gamma fitting degree corresponding to the second screen is high, a higher weight value is assigned to the second difference, while lower weight values are assigned to the first difference and the third difference.

[0086] After determining the first weight value corresponding to the first difference, the second weight value corresponding to the second difference, and the third weight value corresponding to the third difference, the initial electrical parameters can be corrected according to the first difference and the first weight value corresponding to the first difference, the second difference and the second weight value corresponding to the second difference, and the third difference and the weight value corresponding to the third difference.

[0087] Specifically, the total difference can be determined based on the product of the first difference and the first weight value, the product of the second difference and the second weight value, and the product of the third difference and the third weight value, and then the initial electrical parameters can be corrected according to the total difference. In this way, the precision of the initial electrical parameters corresponding to different screens can meet the user's requirements according to different needs.

[0088] In one embodiment, referring to Figure 2 , Figure 2 shows the flowchart of the steps of the method for obtaining the initial electrical parameters in the embodiments of the present disclosure. As Figure 2 shown, the steps for obtaining the initial electrical parameters specifically include:

[0089] S201, obtain the first theoretical electrical parameters required to drive the first screen when the display brightness of the first screen is the first target display brightness corresponding to the current gray level, and obtain the second theoretical electrical parameters required to drive the second screen when the display brightness of the second screen is the second target display brightness corresponding to the current gray level.

[0090] In this embodiment, considering that randomly selecting the initial electrical parameters may lead to a long iteration process and affect the product's factory efficiency, the selectable range or values of the initial electrical parameters can be limited first. This process can correct the electrical parameters corresponding to the first screen and the electrical parameters corresponding to the second screen respectively, and first obtain the optimal electrical parameters corresponding to different screens to limit the selectable range of the initial electrical parameters. Thus, the first theoretical electrical parameters that make the display brightness of the first screen the first target display brightness corresponding to the current gray level and the second theoretical electrical parameters that make the display brightness of the second screen the second target display brightness corresponding to the current gray level can be calculated first to facilitate calibration. Among them, both the first theoretical electrical parameters and the second theoretical electrical parameters can be calculated based on the electrical parameters stored in the driving chip of the display device and the display brightness corresponding to each electrical parameter.

[0091] S202, obtain the third display brightness of the first screen driven by the first theoretical electrical parameters and the fourth display brightness of the second screen driven by the second theoretical electrical parameters.

[0092] Specifically, after obtaining the first theoretical electrical parameters required for the first screen and the second theoretical electrical parameters required for the second screen, the first theoretical electrical parameters can be used to drive the display device to display the first screen to collect the third display brightness, and the second theoretical electrical parameters can be used to drive the display device to display the second screen to collect the fourth display brightness. By comparing the difference between the actual display brightness and the target display brightness, it can be determined whether it is necessary to correct the first theoretical electrical parameters and the second theoretical electrical parameters so that the display brightness of the screen driven by the corrected electrical parameters is the target display brightness.

[0093] S203, correct the first theoretical electrical parameters based on the difference between the third display brightness and the first target display brightness corresponding to the current gray level to obtain the first optimal electrical parameters.

[0094] S204, correct the second theoretical electrical parameters based on the difference between the fourth display brightness and the second target display brightness corresponding to the current gray level to obtain the second optimal electrical parameters.

[0095] In this embodiment, the specific process of correcting the first theoretical electrical parameter may be as follows: determine the magnitude relationship between the third brightness and the first target display brightness corresponding to the current gray level. If the third display brightness is greater than the first target display brightness, then decrease the first theoretical electrical parameter; if the third display brightness is less than the first target display brightness, then increase the first theoretical electrical parameter; and if the third display brightness is equal to the first target display brightness, then determine the first theoretical electrical parameter as the first optimal electrical parameter. Among them, the process of correcting the first theoretical electrical parameter may be a process of multiple iterations. After each adjustment of the first theoretical electrical parameter, re-collect the display brightness of the first screen driven by the first theoretical electrical parameter and re-compare until the display brightness of the first screen is equal to the first target display brightness to obtain the first optimal electrical parameter. The specific process of correcting the second theoretical electrical parameter is similar to the process of correcting the first theoretical electrical parameter described above and will not be elaborated here.

[0096] It can be understood that in the case of including the target color temperature of the second screen, the second theoretical electrical parameter can also be corrected according to the difference between the fourth display brightness and the second target display brightness, and the difference between the color temperature of the second screen and the target color temperature, so that the second screen driven by the second optimal electrical parameter can simultaneously meet the display brightness requirement and the color temperature requirement.

[0097] Among them, steps S203 and S204 have no sequential order. It can be to execute step S203 first and then step S204; it can also be to execute step S204 first and then step S203; or it can be that steps S203 and S204 are executed simultaneously.

[0098] S205, determine the initial electrical parameter according to the first optimal electrical parameter and the second optimal electrical parameter.

[0099] Specifically, after determining the first optimal electrical parameter and the second optimal electrical parameter, the first optimal electrical parameter or the second optimal electrical parameter can be used as the initial electrical parameter, or the initial electrical parameter can be calculated according to the first optimal electrical parameter and the second optimal electrical parameter, such as calculating the average value of the first optimal electrical parameter and the second optimal electrical parameter, etc. It is also possible to determine the selection range of the initial electrical parameter according to the first optimal electrical parameter and the second optimal electrical parameter, and then randomly select the initial electrical parameter. In this way, the first optimal electrical parameter corresponding to the first screen and the second optimal electrical parameter corresponding to the second screen can be corrected first, and then the initial electrical parameter can be determined according to the first optimal electrical parameter and the second optimal electrical parameter, which can avoid the problem of a long iteration process caused by randomly selecting the initial electrical parameter.

[0100] In one embodiment, the driving chip of the display device stores a plurality of preset electrical parameters. However, there may be a deviation between the display brightness corresponding to each preset electrical parameter and the actual brightness, resulting in inaccurate first theoretical electrical parameters. Then, the display brightness of the first screen or the second screen driven by each preset electrical parameter can be determined first, and then the theoretical electrical parameters can be determined. Among them, the method for obtaining the first theoretical electrical parameters specifically includes: First, obtain a plurality of preset electrical parameters corresponding to the current gray level; then, respectively obtain the fifth display brightness of the first screen driven by the plurality of preset electrical parameters; after that, construct a first correlation relationship between the fifth display brightness and the preset electrical parameters, and determine the first theoretical electrical parameters according to the first correlation relationship and the first display brightness corresponding to the current gray level;

[0101] Similarly, the method for obtaining the second theoretical electrical parameters specifically includes: First, determine the sixth display brightness of the second screen corresponding to each preset electrical parameter according to the plurality of fifth display brightnesses; then, construct a second correlation relationship between the sixth display brightness and the preset electrical parameters, and determine the second theoretical electrical parameters according to the second correlation relationship and the second target display brightness corresponding to the current gray level.

[0102] In this embodiment, constructing the first correlation relationship between the fifth display brightness and the preset electrical parameters can be to draw a relationship curve with the fifth display brightness as the ordinate and the preset electrical parameters as the abscissa. In this way, the first theoretical electrical parameters can be directly determined from the relationship curve according to the first target display brightness corresponding to the current gray level. Similarly, constructing the second correlation relationship between the sixth display brightness and the preset electrical parameters can be to draw a relationship curve with the sixth display brightness as the ordinate and the preset electrical parameters as the abscissa, so that the second theoretical electrical parameters can be determined from the relationship curve.

[0103] Among them, since the second screen is a mixed screen of a red screen, a green screen, and a blue screen, the display brightness of the second screen can be directly determined according to the fifth display brightness of the first screen, that is, comprehensively determined according to the display brightness of the red screen, the display brightness of the green screen, and the display brightness of the blue screen.

[0104] In one embodiment, after obtaining the first optimal electrical parameter and the second optimal electrical parameter, the selection range of the initial electrical parameter can be determined according to the first optimal electrical parameter and the second optimal electrical parameter. In this way, the initial electrical parameter can be selected from the range close to the optimal solution, reducing the time required for iteration and improving the calibration efficiency. This process can specifically be: First, construct a target electrical parameter range according to the first optimal electrical parameter and the second optimal electrical parameter; then, determine the initial electrical parameter from the target electrical parameter range.

[0105] Specifically, the target electrical parameter can be constructed by using the average value of the first optimal electrical parameter and the second optimal electrical parameter as the central value of the range, or two parameter ranges can be constructed by using the first optimal electrical parameter and the second optimal electrical parameter as the central points of the ranges respectively, and the union or intersection of the two parameter ranges can be used as the target parameter range, etc. After constructing the target electrical parameter range, a random electrical parameter within the target parameter range can be selected as the initial electrical parameter, or the electrical parameter closest to the first optimal electrical parameter and the second optimal electrical parameter can be selected as the initial electrical parameter.

[0106] The screen display method provided by the embodiments of the present disclosure determines the first theoretical electrical parameter and the second theoretical electrical parameter by the display brightness of the first screen and the second screen corresponding to a plurality of preset electrical parameters stored in the driving chip of the display device, corrects the first theoretical electrical parameter according to the first target display brightness corresponding to the current gray level, and corrects the second theoretical electrical parameter according to the second target display brightness corresponding to the current gray level, to obtain the first optimal electrical parameter and the second optimal electrical parameter. Based on the target parameter range constructed by the first optimal electrical parameter and the second optimal electrical parameter, an initial electrical parameter is obtained, such that the display brightness corresponding to the initial electrical parameter during iterative optimization is already close to the target display brightness, reducing the optimization time and improving the efficiency of iterative optimization. Moreover, during the iterative optimization process, the total difference among the first difference between the first display brightness and the first target display brightness, the second difference between the second display brightness and the second target display brightness, and the third difference between the color temperature and the target color temperature is used to correct the initial electrical parameter, such that the display brightness of the first screen driven by the corrected initial electrical parameter is close to the ideal display brightness of the first screen, and the display brightness and color temperature of the second screen driven by the corrected initial electrical parameter are close to the ideal display brightness and color temperature of the second screen, thereby improving the visual effect of screen display.

[0107] Next, a specific example is used to introduce the screen display method provided by the embodiments of the present disclosure in detail:

[0108] Refer to Figure 3 , Figure 3 which shows a schematic flowchart of the screen display method provided by the embodiments of the present disclosure. When executing the screen display method, a brightness acquisition device is required to acquire the screen brightness of the display device. Therefore, the brightness acquisition device is placed above the display device to acquire data such as the display brightness and color temperature of the screen of the display device, and the maximum brightness, gamma value, and white screen color temperature required for screen display can be input by the user to complete the setting. After the preparation is completed, the screen display method is executed, as shown in Figure 3As shown, first, data is collected for each binding point, and the binding point represents a gray scale. The specific process is as follows: traverse multiple preset electrical parameters that the driving chip of the display device can output under the current gray scale, and use the preset electrical parameters to drive the display device to display the first picture, namely the red picture, the green picture, and the blue picture. At this time, collect the display brightness of the first picture collected by the brightness acquisition device to obtain the fifth display brightness of the first picture driven by each preset parameter.

[0109] Next, determine the first theoretical electrical parameter and the second theoretical electrical parameter. The specific process is as follows: after recording the fifth display brightness corresponding to each preset parameter, the sixth display brightness of the second picture corresponding to each preset parameter can be determined according to the multiple fifth display brightnesses. Then, according to the maximum brightness required for picture display, the gamma value, and the white picture color temperature, determine the first target display brightness required for the first picture, the second target display brightness required for the second picture, and the target color temperature. Then, construct the first correlation relationship between the fifth display brightness and the preset electrical parameter, and obtain the first theoretical electrical parameter according to the first correlation relationship and the first target display brightness; similarly, construct the second correlation relationship between the sixth display brightness and the preset electrical parameter, and obtain the second theoretical electrical parameter according to the second correlation relationship and the second target display brightness.

[0110] After that, perform the second picture iterative correction process: use the second theoretical electrical parameter to drive the display device to display the second picture, and obtain the fourth display brightness and color temperature of the second picture collected by the brightness acquisition device. According to the difference between the fourth display brightness and the second target display brightness, and the difference between the color temperature and the target color temperature, adjust the second theoretical electrical parameter until the fourth display brightness and color temperature meet the requirements, that is, the fourth display brightness is the second target display brightness and the color temperature is the target color temperature. At this time, obtain the second optimal electrical parameter.

[0111] Similarly, perform the first picture iterative correction process: use the first theoretical electrical parameter to drive the display device to display the first picture, and obtain the third display brightness and color temperature of the first picture collected by the brightness acquisition device. According to the difference between the third display brightness and the first target display brightness, adjust the first theoretical electrical parameter until the third display brightness meets the requirements, that is, the third display brightness is the first target display brightness. At this time, obtain the first optimal electrical parameter.

[0112] Finally, optimize the calculation of the optimal parameters: After obtaining the optimal parameters of the separate first screen and the separate second screen, due to the characteristics of the screen display, the RGB values required for the second screen to meet the brightness requirement are inconsistent with the RGB values required for the first screen to meet the brightness requirement. Therefore, after determining the first optimal electrical parameter and the second optimal electrical parameter, the initial electrical parameter can be obtained first, and then the initial electrical parameter is used to drive the display device to display the first screen and the second screen respectively, so as to collect the first display brightness corresponding to the first screen, the second display brightness corresponding to the second screen, and the color temperature. Then, according to the established loss function, determine the total gap between the first display brightness and the first target display brightness, the second display brightness and the second target display brightness, and the color temperature and the target color temperature, so as to optimize the initial electrical parameter according to the total gap; among them, the loss function loss(r, g, b) is shown in Equation 1 below:

[0113]

[0114] Where r is the initial electrical parameter, Loss_r is the percentage difference between the display brightness of the red screen and the corresponding first target display brightness, Loss_g is the percentage difference between the display brightness of the green screen and the corresponding first target display brightness, Loss_b is the percentage difference between the display brightness of the blue screen and the corresponding first target display brightness, Loss_w is the percentage difference between the display brightness of the white screen and the second target display brightness, Loss_x is the difference percentage between the x value of the color coordinate corresponding to the color temperature of the white screen and the x value of the color coordinate corresponding to the target color temperature, Loss_y is the difference percentage between the y value of the color coordinate corresponding to the color temperature of the white screen and the y value of the color coordinate corresponding to the target color temperature, α is the weight value corresponding to the brightness loss of the red screen, β is the weight value corresponding to the brightness loss of the green screen, γ is the weight value corresponding to the brightness loss of the blue screen, is the weight value corresponding to the brightness loss of the white screen, θ is the weight value corresponding to the x coordinate of the color temperature, φ is the weight value corresponding to the y coordinate of the color temperature, and n is the number of binding points.

[0115] After calculating the total gap according to the loss function, the size of the preset threshold and the total gap can be compared. When the total gap is greater than or equal to the preset threshold, the initial electrical parameter is corrected, and when the total gap is less than the preset threshold, the correction of the initial electrical parameter is ended. Then, the initial electrical parameter corrected last time can be used to drive the display device to perform screen display.

[0116] Based on the same inventive concept, the embodiments of the present disclosure also provide a screen display device. Refer to Figure 4 , Figure 4 which shows a schematic structural diagram of the screen display device provided by the embodiments of the present disclosure. The screen display device is applied to a display device. The screen display device includes:

[0117] An acquisition module 301, configured to acquire initial electrical parameters corresponding to a first screen and a second screen at the same gray level; wherein, the first screen includes a red screen, a green screen or a blue screen, the second screen is a white screen, and the initial electrical parameters are used to drive the pixels of the display device to emit light;

[0118] An optimization module 302, configured to iteratively optimize the initial electrical parameters, wherein each optimization includes: driving the display device to display the first screen and the second screen respectively based on the initial electrical parameters of the current time, and respectively collecting a first display brightness when displaying the first screen, a second display brightness when displaying the second screen, and a color temperature; correcting the initial electrical parameters based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature; wherein, the first target display brightness represents an ideal display brightness of the first screen, and the second target display brightness represents an ideal display brightness of the second screen;

[0119] A display module 303, configured to drive the screen of the display device to be displayed based on the initial electrical parameters obtained from the last optimization.

[0120] In an optional embodiment, the optimization module 302 includes:

[0121] A first determination module, configured to determine a total gap based on the first difference, the second difference, and the third difference;

[0122] A first correction module, configured to correct the initial electrical parameters according to the total gap.

[0123] In an optional embodiment, there are multiple initial electrical parameters, and the multiple initial electrical parameters respectively correspond to multiple gray levels. The optimization module 302 includes:

[0124] A second determination module, configured to determine the first difference, the second difference, and the third difference corresponding to the initial electrical parameters of each gray level;

[0125] A second correction module, configured to correct the multiple initial electrical parameters based on the multiple first differences, the multiple second differences, and the multiple third differences to obtain corrected electrical parameters corresponding to each gray level.

[0126] In an optional embodiment, the first correction module includes:

[0127] A determination sub-module, configured to determine whether the total gap is less than a preset threshold;

[0128] A correction sub-module, configured to, if so, end the correction of the initial electrical parameters; if not, correct the initial electrical parameters according to the first difference, the second difference, and the third difference.

[0129] In an optional embodiment, the correction sub-module includes:

[0130] A first determination unit, configured to determine a first ratio between a first difference and a first target display brightness, a second ratio between a second difference and a second target display brightness, and a third ratio between a third difference and a target color temperature of a second picture;

[0131] A correction unit, configured to correct the initial electrical parameters based on the first ratio, the second ratio, and the third ratio.

[0132] In an optional embodiment, the optimization module 302 includes:

[0133] A third determination module, configured to determine a first weight value corresponding to the first difference according to the gamma fitting degree corresponding to the first picture;

[0134] A fourth determination module, configured to determine a second weight value corresponding to the second difference according to the gamma fitting degree corresponding to the second picture;

[0135] A fifth determination module, configured to determine a third weight value corresponding to the third difference according to the color temperature matching requirement of the second picture;

[0136] A third correction module, configured to correct the initial electrical parameters based on the first difference, the second difference, the third difference, the first weight value, the second weight value, and the third weight value.

[0137] In an optional embodiment, the acquisition module 301 includes:

[0138] A first acquisition sub-module, configured to acquire a first theoretical electrical parameter required to drive the first picture when the display brightness of the first picture is the first target display brightness corresponding to the current gray level, and acquire a second theoretical electrical parameter required to drive the second picture when the display brightness of the second picture is the second target display brightness corresponding to the current gray level;

[0139] A second acquisition sub-module, configured to acquire a third display brightness of the first picture driven by the first theoretical electrical parameter, and a fourth display brightness of the second picture driven by the second theoretical electrical parameter;

[0140] A first correction module, configured to correct the first theoretical electrical parameter based on the difference between the third display brightness and the first target display brightness corresponding to the current gray level, to obtain a first optimal electrical parameter;

[0141] A second correction module, configured to correct the second theoretical electrical parameter based on the difference between the fourth display brightness and the second target display brightness corresponding to the current gray level, to obtain a second optimal electrical parameter;

[0142] A sixth determination module, configured to determine an initial electrical parameter according to a first optimal electrical parameter and a second optimal electrical parameter.

[0143] In an optional embodiment, the first acquisition sub-module includes:

[0144] A first acquisition unit, configured to acquire a plurality of preset electrical parameters corresponding to a current gray level;

[0145] A second acquisition unit, configured to respectively acquire a fifth display brightness of a first picture driven by a plurality of preset electrical parameters;

[0146] A second determination unit, configured to construct a first correlation relationship between the fifth display brightness and the preset electrical parameter, and determine a first theoretical electrical parameter according to the first correlation relationship and a first target display brightness corresponding to the current gray level;

[0147] A third determination unit, configured to determine a sixth display brightness of a second picture corresponding to each preset electrical parameter according to a plurality of fifth display brightnesses;

[0148] A third acquisition unit, configured to construct a second correlation relationship between the sixth display brightness and the preset electrical parameter, and determine a second theoretical electrical parameter according to the second correlation relationship and a second target display brightness corresponding to the current gray level.

[0149] In an optional embodiment, the sixth determination module includes:

[0150] A construction unit, configured to construct a target electrical parameter range according to the first optimal electrical parameter and the second optimal electrical parameter;

[0151] A fourth determination unit, configured to determine an initial electrical parameter from the target electrical parameter range.

[0152] Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0153] Finally, it should also be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprises", "comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, commodity or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, commodity or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, commodity or device including the element.

[0154] The above has provided a detailed introduction to a method and apparatus for screen display. In this article, specific examples are used to elaborate on the principles and implementation manners of the present disclosure. The description of the above embodiments is only used to help understand the method and its core idea of the present disclosure. At the same time, for those of ordinary skill in the art, according to the idea of the present disclosure, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present disclosure.

[0155] Those skilled in the art will readily think of other implementation manners of the present disclosure after considering the specification and practicing the invention disclosed herein. The present disclosure aims to cover any variations, uses, or adaptations of the present disclosure, which follow the general principles of the present disclosure and include the common general knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.

[0156] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

[0157] As used herein, the terms "one embodiment", "embodiment", or "one or more embodiments" mean that the specific features, structures, or characteristics described in connection with the embodiments are included in at least one embodiment of the present disclosure. In addition, please note that the examples of the phrase "in one embodiment" herein do not necessarily all refer to the same embodiment.

[0158] In the specification provided herein, a large number of specific details are set forth. However, it can be understood that the embodiments of the present disclosure can be practiced without these specific details. In some instances, well-known methods, structures, and technologies are not shown in detail so as not to obscure the understanding of this specification.

[0159] In the claims, any reference signs between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in the claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present disclosure can be implemented by means of hardware including several different elements and by means of a suitably programmed computer. In the unit claims listing several devices, several of these devices can be embodied by the same item of hardware. The use of the words first, second, and third, etc. does not denote any order. These words can be interpreted as names.

[0160] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them; although the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A screen display method, characterized in that: Applied to a display device, the method comprises: Acquire initial electrical parameters corresponding to driving a first picture and a second picture at the same grayscale; wherein the first picture includes a red picture, a green picture or a blue picture, and the second picture is a white picture, and the initial electrical parameters are used to drive the pixels of the display device to emit light; The initial electrical parameters are iteratively optimized, wherein each optimization step includes: Based on the initial electrical parameters at that time, driving the display device to display the first picture and the second picture respectively, and collecting a first display brightness when displaying the first picture, and a second display brightness and a color temperature when displaying the second picture respectively; Based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature, the initial electrical parameter is corrected; wherein the first target display brightness represents an ideal display brightness of the first picture, and the second target display brightness represents an ideal display brightness of the second picture; Based on the initial electrical parameters obtained by the last optimization, the display device is driven to display images.

2. The screen display method according to claim 1, characterized in that: The correcting the initial electrical parameters based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature includes: determining a total gap based on the first difference, the second difference, and the third difference; The initial electrical parameters are corrected according to the total gap.

3. The screen display method according to claim 1, characterized in that: The method comprises a plurality of initial electrical parameters, each of which corresponds to a plurality of grayscales. The method comprises: modifying the initial electrical parameters based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature, comprising: Determine a first difference, a second difference, and a third difference corresponding to the initial electrical parameters of each gray scale; Based on the plurality of first differences, the plurality of second differences and the plurality of third differences, the plurality of initial electrical parameters are corrected to obtain corrected electrical parameters corresponding to each of the grayscales.

4. The screen display method according to claim 2, characterized in that: The step of correcting the initial electrical parameters according to the total gap comprises: Determining whether the total gap is less than a preset threshold; If yes, end the correction of the initial electrical parameters; If not, the initial electrical parameter is corrected according to the first difference, the second difference and the third difference.

5. The screen display method according to claim 4, characterized in that: The correcting the initial electrical parameter according to the first difference, the second difference and the third difference comprises: Determine a first ratio between the first difference and the first target display brightness, a second ratio between the second difference and the second target display brightness, and a third ratio between the third difference and the target color temperature of the second picture; The initial electrical parameter is modified based on the first ratio, the second ratio and the third ratio.

6. The screen display method according to claim 1, characterized in that: The correcting the initial electrical parameters based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and a target color temperature includes: determining a first weight value corresponding to the first difference value according to a gamma fit degree corresponding to the first picture; determining a second weight value corresponding to the second difference according to a gamma fit degree corresponding to the second picture; Determining a third weight value corresponding to the third difference value according to a color temperature matching requirement of the second picture; The initial electrical parameter is modified based on the first difference, the second difference, the third difference, the first weight value, the second weight value, and the third weight value.

7. The screen display method according to claim 1, characterized in that: The obtaining of initial electrical parameters corresponding to driving the first picture and the second picture includes: Acquiring a first theoretical electrical parameter required for driving the first picture when the display brightness of the first picture is a first target display brightness corresponding to the current grayscale, and acquiring a second theoretical electrical parameter required for driving the second picture when the display brightness of the second picture is a second target display brightness corresponding to the current grayscale; Acquire a third display brightness of a first picture driven by the first theoretical electrical parameter, and a fourth display brightness of a second picture driven by the second theoretical electrical parameter; Based on the difference between the third display brightness and the first target display brightness corresponding to the current grayscale, correcting the first theoretical electrical parameter to obtain a first optimal electrical parameter; Based on the difference between the fourth display brightness and the second target display brightness corresponding to the current grayscale, correcting the second theoretical electrical parameter to obtain a second optimal electrical parameter; The initial electrical parameters are determined according to the first optimal electrical parameters and the second optimal electrical parameters.

8. The screen display method according to claim 7, characterized in that: The acquiring of the first theoretical electrical parameters required for driving the first picture when the display brightness of the first picture is the first target display brightness corresponding to the current grayscale includes: Acquire a plurality of preset electrical parameters corresponding to the current gray scale; Respectively obtaining a fifth display brightness of the first picture driven by a plurality of the preset electrical parameters; constructing a first association relationship between the fifth display brightness and the preset electrical parameter, and determining the first theoretical electrical parameter according to the first association relationship and a first target display brightness corresponding to a current grayscale; The acquiring of the second theoretical electrical parameters required for driving the second picture when the display brightness of the second picture is the second target display brightness corresponding to the current grayscale includes: Determining a sixth display brightness of the second picture corresponding to each of the preset electrical parameters according to the plurality of fifth display brightnesses; A second association relationship between the sixth display brightness and the preset electrical parameter is constructed, and the second theoretical electrical parameter is determined according to the second association relationship and a second target display brightness corresponding to the current gray scale.

9. The screen display method according to claim 7, characterized in that: The step of determining the initial electrical parameters according to the first optimal electrical parameters and the second optimal electrical parameters comprises: constructing a target electrical parameter range according to the first optimal electrical parameter and the second optimal electrical parameter; The initial electrical parameter is determined from the target electrical parameter range.

10. A screen display device, characterized in that: Applicable to display devices, including: An acquisition module, used to acquire initial electrical parameters corresponding to driving a first picture and a second picture at the same gray scale; wherein the first picture includes a red picture, a green picture or a blue picture, and the second picture is a white picture, and the initial electrical parameters are used to drive the pixels of the display device to emit light; an optimization module, configured to iteratively optimize the initial electrical parameters, wherein each optimization comprises: based on the initial electrical parameters of the time, driving the display device to display the first picture and the second picture respectively, and respectively collecting a first display brightness when displaying the first picture, a second display brightness when displaying the second picture, and a color temperature; based on a first difference between the first display brightness and a first target display brightness, a second difference between the second display brightness and a second target display brightness, and a third difference between the color temperature and the target color temperature, modifying the initial electrical parameters; wherein the first target display brightness represents an ideal display brightness of the first picture, and the second target display brightness represents an ideal display brightness of the second picture; The display module is used to drive the image of the display device to display based on the initial electrical parameters obtained by the last optimization.

Images