A picture display method and apparatus

Abstract

The present disclosure provides a picture display method and device, belonging to the technical field of display, applied to a display device, aiming to improve the display effect of the display device under different pictures, the method comprising: obtaining initial electrical parameters corresponding to driving a first picture and a second picture under the same gray scale; iteratively optimizing 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 collecting the first display brightness when displaying the first picture, the second display brightness when displaying the second picture, and the color temperature respectively; 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, correcting the initial electrical parameters; based on the initial electrical parameters obtained by the last optimization, driving the display device to display the picture.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, in particular to a picture display method and device. BACKGROUND

[0002] The conventional mini LED product needs to be subjected to display screen gamma correction after preparation. The gamma correction is used to adjust the value output by the driving chip under a certain series of gray scales, i.e. the actual display brightness, so as to make it meet the requirements of the gamma curve. SUMMARY

[0003] Based on the content of the background art, the present disclosure provides a picture display method and device.

[0004] In a first aspect, the present disclosure provides a picture display method applied to a display device, comprising:

[0005] obtaining initial electrical parameters corresponding to driving a first picture and a second picture at the same gray scale; wherein the first picture comprises a red picture, a green picture or a blue picture, 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;

[0006] iteratively optimizing the initial electrical parameters, wherein each optimization comprises:

[0007] driving the display device to display the first picture and the second picture respectively based on the initial electrical parameters of the current iteration, and collecting a first display brightness when the first picture is displayed, a second display brightness when the second picture is displayed, and a color temperature;

[0008] 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 picture, and the second target display brightness represents an ideal display brightness of the second picture;

[0009] driving the display device to display a picture based on the initial electrical parameters obtained after the last optimization.

[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 comprises:

[0011] determining a total difference based on the first difference, the second difference and the third difference;

[0012] correct the initial electrical parameter according to the total difference.

[0013] Optionally, the initial electrical parameters correspond to multiple gray scales, and the correcting the initial electrical parameter according to 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 comprises:

[0014] determining the first difference, the second difference, and the third difference corresponding to the initial electrical parameter of each gray scale;

[0015] correcting the initial electrical parameters according to the first difference, the second difference, and the third difference to obtain the corrected electrical parameter corresponding to each gray scale.

[0016] Optionally, the correcting the initial electrical parameter according to the total difference comprises:

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

[0018] if yes, ending the correction of the initial electrical parameter;

[0019] if no, correcting the initial electrical parameter according to the first difference, the second difference, and the third difference.

[0020] Optionally, the correcting the initial electrical parameter according to the first difference, the second difference, and the third difference comprises:

[0021] determining 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;

[0022] correcting the initial electrical parameter according to the first ratio, the second ratio, and the third ratio.

[0023] Optionally, the correcting the initial electrical parameter according to 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 comprises:

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

[0025] determining a second weight value corresponding to the second difference according to the gamma fitting degree of the second picture.

[0026] Based on the color temperature matching requirements of the second image, determine the third weight value corresponding to the third difference;

[0027] The initial electrical parameters are corrected based on the first difference, the second difference, the third difference, the first weight value, the second weight value, and the third weight value.

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

[0029] When the display brightness of the first image is obtained as the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters required to drive the first image are determined; and when the display brightness of the second image is obtained as the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters required to drive the second image are determined.

[0030] 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;

[0031] Based on the difference between the third display brightness and the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters are corrected to obtain the first optimal electrical parameters.

[0032] Based on the difference between the fourth display brightness and the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters are corrected to obtain the second optimal electrical parameters;

[0033] The initial electrical parameters are determined based on the first optimal electrical parameters and the second optimal electrical parameters.

[0034] Optionally, when obtaining the display brightness of the first image as the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters required to drive the first image include:

[0035] Obtain multiple preset electrical parameters corresponding to the current grayscale;

[0036] The fifth display brightness of the first screen driven by multiple preset electrical parameters is obtained respectively;

[0037] Construct a first correlation between the fifth display brightness and the preset electrical parameters, and determine the first theoretical electrical parameters based on the first correlation and the first target display brightness corresponding to the current grayscale.

[0038] When the display brightness of the second image is obtained as the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters required to drive the second image include:

[0039] Based on the multiple fifth display brightness values, determine the sixth display brightness of the second screen corresponding to each preset electrical parameter;

[0040] A second correlation relationship is established between the sixth display brightness and the preset electrical parameters, and the second theoretical electrical parameters are determined based on the second correlation relationship and the second target display brightness corresponding to the current grayscale.

[0041] Optionally, determining the initial electrical parameters based on the first optimal electrical parameters and the second optimal electrical parameters includes:

[0042] Based on the first optimal electrical parameters and the second optimal electrical parameters, a target electrical parameter range is constructed;

[0043] The initial electrical parameters are determined from the target electrical parameter range.

[0044] A second aspect of this disclosure provides a screen display device, applied to a display device, comprising:

[0045] The acquisition module is used to acquire the initial electrical parameters corresponding to the first screen and the second screen at the same grayscale; 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;

[0046] An optimization module is used to iteratively optimize the initial electrical parameters. Each optimization includes: based on the current initial electrical parameters, driving the display device to display the first image and the second image respectively, and collecting the first display brightness, the second display brightness and the color temperature when displaying the first image, respectively; 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; 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;

[0047] The display module is used to drive the display device to display the screen based on the initial electrical parameters obtained from the last optimization.

[0048] The screen display method provided in this disclosure includes: obtaining initial electrical parameters corresponding to driving a first screen and a second screen at the same grayscale; 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;

[0049] The initial electrical parameters are iteratively optimized, wherein each optimization includes: based on the current initial electrical parameters, driving the display device to display the first image and the second image respectively, and collecting the first display brightness, the second display brightness and the color temperature when displaying the first image, respectively; 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; 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; and driving the display device to display the image based on the initial electrical parameters obtained from the last optimization.

[0050] Therefore, this disclosure optimizes the initial electrical parameters by iteratively optimizing the initial electrical parameters based on the differences between the display brightness of the first screen and the ideal display brightness, the display brightness of the second screen and the ideal display brightness, and the color temperature of the second screen and the ideal color temperature. In this way, the optimized driving electrical parameters can meet the brightness requirements of the red, blue and green screens, as well as the brightness and color temperature requirements of the white screen.

[0051] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure are described below. Attached Figure Description

[0052] To more clearly illustrate the technical solutions in the embodiments or related technologies of this disclosure, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the scale in the drawings is for illustration only and does not represent the actual scale.

[0053] Figure 1 A flowchart illustrating the steps of the screen display method provided in this embodiment is shown.

[0054] Figure 2 A flowchart illustrating the steps of a method for obtaining initial electrical parameters in an embodiment of this disclosure is shown.

[0055] Figure 3 A flowchart illustrating the screen display method provided in an embodiment of this disclosure is shown;

[0056] Figure 4 A schematic diagram of the structure of the screen display device provided in an embodiment of this disclosure is shown. Detailed Implementation

[0057] To make the above-mentioned objectives, features, and advantages of this disclosure more apparent and understandable, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0058] Currently, display devices have increasingly higher requirements for display quality, display functionality, and power consumption. Active-drive low-temperature polycrystalline silicon mini LED (light emitting diode) displays have the advantages of low power consumption, low cost, and smaller pitch, making them a future development trend.

[0059] However, in traditional mini LED display gamma calibration, the specific adjustment is to make the value output by the driver chip, i.e. the actual displayed brightness, conform to the requirements of the gamma curve under a certain series of gray levels. Currently, gamma calibration can often only correct the brightness of RGB images or white images, and the accuracy of white image brightness is limited.

[0060] In view of this, the present disclosure provides a screen display method, which optimizes the initial electrical parameters driving the first screen and the second screen through multiple iterations. In 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. This makes the initial electrical parameters obtained after multiple optimizations able to meet the brightness requirements of the first screen and the brightness and color temperature requirements of the second screen.

[0061] Reference Figure 1 , Figure 1 The diagram illustrates a flowchart of the screen display method provided in this embodiment. This screen display method is applied to a display device, which may be a direct-display mini LED. In a direct-display mini LED, an image is displayed by directly driving LEDs to emit light. In a direct-display mini LED, each LED is considered a sub-pixel. The brightness of the LED can be controlled by controlling its voltage, thus controlling the display brightness of the sub-pixel. Figure 1 As shown, the method specifically includes:

[0062] S101, obtain the initial electrical parameters corresponding to the first and second screens at the same grayscale.

[0063] The first screen includes a red, green, or 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 driver chip of the display device outputs initial electrical parameters to drive the pixels of the display device to emit light. When different sub-pixels are driven to emit light, the display device displays different images. For example, when the driver chip drives the red sub-pixel to emit light, the display device displays a red image; when the driver chip drives the green sub-pixel to emit light, the display device displays a green image; when the driver chip drives the blue sub-pixel to emit light, the display device displays a blue image; and when the driver chip drives the red, green, and blue sub-pixels to emit light, the display device displays a white image. The initial electrical parameters can include the voltage and current values ​​required to drive the pixels.

[0065] In conventional gamma correction, the display device is first driven to display the image using initial electrical parameters. The brightness of the displayed image is then compared with the required brightness, and the electrical parameters are corrected based on the comparison result. Therefore, initial electrical parameters can be obtained before correction. These initial electrical parameters can be randomly selected or determined based on pre-stored electrical parameters in the display device's driver chip. Considering that the required similar brightness for the first or second image differs at different grayscale levels, the electrical parameters for the first and second images at the same grayscale can be adjusted first to obtain the initial electrical parameters corresponding to each grayscale. Thus, the initial electrical parameters at that grayscale after correction are the electrical parameters that ensure the first and second images at that grayscale have the required display brightness.

[0066] In one example, randomly selecting initial electrical parameters might result in a significant discrepancy between the displayed brightness of the selected initial electrical parameters and the required display brightness. Therefore, the selection range of initial electrical parameters can be narrowed down before determining the final initial electrical parameters, thereby reducing the number of iterations and improving the efficiency of the calibration. Specifically, an electrical parameter value can be determined first based on the required display brightness of the first image, and another electrical parameter value can be determined based on the required display brightness and color temperature of the second image. A parameter range can then be determined based on the two electrical parameter values, and the initial electrical parameters can be determined from this parameter range for iterative optimization.

[0067] S102, perform iterative optimization of the initial electrical parameters, wherein each optimization includes: based on the initial electrical parameters at that time, drive the display device to display the first screen and the second screen respectively, and collect the first display brightness when displaying the first screen, the second display brightness and the color temperature when displaying the second screen respectively; and correct 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, and 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, each optimization process is based on 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, these initial electrical parameters can be used to drive the display device to display the screen, facilitating the collection of display brightness and color temperature for different screens. The initial electrical parameters are then corrected based on the differences between the actually collected display brightness and color temperature and the required display brightness and color temperature. Specifically, when correcting the initial electrical parameters, the sum of the first difference, the second difference, and the third difference can be determined first. Based on this sum, it is determined whether the initial electrical parameters need correction. If correction is required, it is then performed.

[0070] When correcting the initial electrical parameters, the percentage difference between the actual display brightness of the first image and the first target display brightness, the percentage difference between the actual display brightness of the second image and the second target display brightness, and the percentage difference between the color temperature and the target color temperature can be determined separately. The image with the largest percentage difference is used as the standard for correcting the initial electrical parameters. For example, when the percentage difference between the actual display brightness of the first image and the first target display brightness is determined to be the largest, if the actual display brightness of the first image is lower than the first target display brightness, the initial electrical parameters can be increased; if the actual display brightness of the first image is higher than the first target display brightness, the initial electrical parameters can be decreased. It can be understood that the gamma correction process is a process of correcting the electrical parameters of a portion of grayscale. Therefore, the above optimization process can be performed on the grayscale that needs adjustment, so that the image displayed by the display device driven by the initial electrical parameters under that portion of grayscale can better conform to the gamma curve and color temperature requirements.

[0071] S103, based on the initial electrical parameters obtained from the last optimization, drives the display device to display the image.

[0072] Specifically, the initial electrical parameters obtained from the first optimization meet the requirements for maximum brightness, gamma value, and color temperature. Using these initial electrical parameters to drive the display device for screen display, both the first and second screens can approach the ideal display brightness, thus improving the screen display effect.

[0073] The screen display method provided in this embodiment obtains the initial electrical parameters for driving the first screen and the second screen at the same gray level, and then iteratively optimizes the initial electrical parameters. Since each optimization takes into account the display brightness requirements of the first screen and the display brightness and color temperature requirements of the second screen, when the display device driven by the optimized initial electrical parameters displays the screen, it can satisfy both the brightness requirements of the RGB screen and the brightness and color temperature requirements of the white screen.

[0074] In this disclosure, the process of optimizing the initial electrical parameters is the process of gamma correction. Gamma correction adjusts the electrical parameters output by the driver chip at a certain series of gray levels so that the display brightness of the image displayed by the drive display device meets the requirements of the gamma curve. Thus, each gray level corresponds to an initial electrical parameter. The above optimization method can be used to adjust the initial electrical parameter corresponding to each gray level. In this case, there are multiple initial electrical parameters, each corresponding to a different gray level. The specific process of correcting the initial electrical parameter of each gray level can be as follows: First, determine the first difference, second difference, and third difference corresponding to the initial electrical parameter of each gray level; then, based on the multiple first differences, multiple second differences, and 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, the first difference, the second difference, and the third difference under each gray level are determined. To facilitate the optimization of the initial electrical parameters, after determining multiple first differences, multiple second differences, and multiple third differences, the initial electrical parameters of multiple gray levels can be optimized as a whole based on 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 based on the first difference, the second difference, and the third difference may specifically be as follows: First, the total difference is determined based on the first difference, the second difference, and the third difference; then, the initial electrical parameters are corrected based on the total difference.

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

[0078] In one embodiment, the specific process of correcting the initial electrical parameters based on the total difference may be: determining whether the total difference is less than a preset threshold; if yes, ending the correction of the initial electrical parameters; if no, correcting the initial electrical parameters based on the first difference, the second difference, and the third difference.

[0079] In this embodiment, considering that the total difference can reflect the overall difference between the display brightness of the first screen 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, and that the smaller the overall difference, the closer the display screen driven by the initial electrical parameters can be to the user's needs, a preset threshold can be set, and the size of the total difference can be compared with the preset threshold to determine whether the initial electrical parameters need to be corrected.

[0080] Specifically, it can be determined whether the total difference is less than a preset threshold. If so, it means that the display brightness of the first screen driven by the initial electrical parameters is close to the first target display brightness, the display brightness of the second screen 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 ends. If the total difference is greater than or equal to the preset threshold, it means that the display brightness of the first screen is significantly different from the first target display brightness, or the display brightness of the second screen is significantly different from the second target display brightness, or the color temperature is significantly different from the target color temperature. Then, the initial electrical parameters need to be adjusted further.

[0081] Understandably, the total difference determines the total difference between the display brightness of the first screen 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 for each initial electrical parameter. It does not indicate whether the total difference is greater than or equal to the preset threshold due to a larger difference in the display brightness of the first screen, the display brightness of the second screen, or the color temperature. Therefore, when determining that the initial electrical parameters need to be corrected based on the total difference, the ratio of the difference between the display brightness of the first screen, the display brightness of the second screen, and the color temperature and the target value can be determined first to determine the direction of correction of the initial electrical parameters. Specifically, this 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, correct the initial electrical parameters based on the first ratio, the second ratio, and the third ratio.

[0082] In this embodiment, the first ratio between the first difference and the first target display brightness can characterize 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 characterize 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.

[0083] If the first ratio is the largest, it indicates 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 relationship between the first display brightness and the first target display brightness; if the second ratio is the largest, it indicates 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 relationship between the second display brightness and the second target display brightness; if the third ratio is the largest, it indicates 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 relationship between the color temperature and the target color temperature.

[0084] In one example, different images correspond to different requirements. Therefore, a weight value can be assigned to each difference based on these different requirements to adjust the initial electrical parameters so that the corrected initial electrical parameters meet the requirements. Specifically, the first weight value corresponding to the first difference can be determined based on the gamma fit of the first image; the second weight value corresponding to the second difference can be determined based on the gamma fit of the second image; the third weight value corresponding to the third difference can be determined based on the color temperature matching requirements of the second image; and the initial electrical parameters are corrected based on the first difference, second difference, third difference, first weight value, second weight value, and third weight value.

[0085] In this embodiment, gamma fit represents the degree of similarity between the gamma curve corresponding to the current first or second frame and the required gamma curve, while color temperature matching requirement represents the degree of matching between the current color temperature and the target color temperature. By using gamma fit and color temperature matching requirement, the required precision of display brightness and color temperature adjustment can be represented. This allows for the allocation of higher weight values ​​to display brightness or color temperature with higher precision requirements, and lower weight values ​​to display brightness or color temperature with lower precision requirements. For example, when the gamma fit corresponding to the second frame is high, a higher weight value is assigned to the second difference, while lower weight values ​​are assigned to the first and third differences.

[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 based on 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 by multiplying the first difference and the first weight value, the second difference and the second weight value, and the third difference and the third weight value. Then, the initial electrical parameters can be corrected based on the total difference. In this way, the accuracy of the initial electrical parameters corresponding to different screens can be adjusted to meet user needs.

[0088] In one embodiment, reference is made to Figure 2 , Figure 2 A flowchart illustrating the steps of the method for obtaining initial electrical parameters in an embodiment of this disclosure is shown, as follows: Figure 2 As shown, the steps for obtaining the initial electrical parameters specifically include:

[0089] S201, when the display brightness of the first screen is obtained as the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters required to drive the first screen are obtained, and when the display brightness of the second screen is obtained as the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters required to drive the second screen are obtained.

[0090] In this embodiment, considering that randomly selecting initial electrical parameters may involve a long iteration process, affecting product manufacturing efficiency, the selectable range or values ​​of the initial electrical parameters can be limited first. This process can involve correcting the electrical parameters corresponding to the first screen and the electrical parameters corresponding to the second screen separately, obtaining the optimal electrical parameters for different screens to limit the selection range of the initial electrical parameters. Therefore, a first theoretical electrical parameter that makes the display brightness of the first screen the first target display brightness corresponding to the current grayscale, and a second theoretical electrical parameter that makes the display brightness of the second screen the second target display brightness corresponding to the current grayscale, can be calculated to facilitate correction. Both the first and second theoretical electrical parameters can be calculated based on the electrical parameters stored in the display device's driver chip 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 the first and second theoretical electrical parameters need to be corrected so that the display brightness of the screen driven by the corrected electrical parameters is the target display brightness.

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

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

[0095] In this embodiment, the specific process of correcting the first theoretical electrical parameter can be as follows: determine the relationship between the third brightness and the first target display brightness corresponding to the current grayscale; if the third display brightness is greater than the first target display brightness, decrease the first theoretical electrical parameter; if the third display brightness is less than the first target display brightness, increase the first theoretical electrical parameter; and if the third display brightness is equal to the first target display brightness, determine the first theoretical electrical parameter as the first optimal electrical parameter. The process of correcting the first theoretical electrical parameter can be an iterative process. After each adjustment of the first theoretical electrical parameter, the display brightness of the first screen driven by the first theoretical electrical parameter is re-acquired and compared again until the display brightness of the first screen is equal to the first target display brightness, thus obtaining 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 repeated here.

[0096] It is understandable that, in addition to the target color temperature of the second image, the second theoretical electrical parameters can also be corrected based on the difference between the fourth display brightness and the second target display brightness, as well as the difference between the color temperature of the second image and the target color temperature, so that the second image driven by the second optimal electrical parameters can simultaneously meet the display brightness and color temperature requirements.

[0097] Steps S203 and S204 are not in any particular order. Step S203 can be executed first, followed by step S204; or step S204 can be executed first, followed by step S203; or steps S203 and S204 can be executed simultaneously.

[0098] S205, determine the initial electrical parameters based on the first optimal electrical parameters and the second optimal electrical parameters.

[0099] Specifically, after determining the first and second optimal electrical parameters, either the first or second optimal electrical parameter can be used as the initial electrical parameter. Alternatively, the initial electrical parameter can be calculated based on the first and second optimal electrical parameters, such as by calculating the average of the first and second optimal electrical parameters. Furthermore, the selection range of the initial electrical parameter can be determined based on the first and second optimal electrical parameters, and then the initial electrical parameter can be randomly selected. 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 obtained first, and then the initial electrical parameter can be determined based on the first and second optimal electrical parameters. This avoids the problem of long iteration time caused by randomly selecting the initial electrical parameter.

[0100] In one embodiment, the driver chip of the display device stores multiple preset electrical parameters. However, the display brightness corresponding to each preset electrical parameter may deviate from the actual brightness, resulting in inaccurate first theoretical electrical parameters. Therefore, the display brightness of the first or second screen driven by each preset electrical parameter can be determined first, and then the theoretical electrical parameters can be determined. Specifically, the method for obtaining the first theoretical electrical parameters includes: first, obtaining multiple preset electrical parameters corresponding to the current grayscale; then, obtaining the fifth display brightness of the first screen driven by the multiple preset electrical parameters respectively; then, constructing a first association relationship between the fifth display brightness and the preset electrical parameters, and determining the first theoretical electrical parameters based on the first association relationship and the first display brightness corresponding to the current grayscale.

[0101] Similarly, the method for obtaining the second theoretical electrical parameter specifically includes: first, determining the sixth display brightness of the second screen corresponding to each preset electrical parameter based on multiple fifth display brightnesses; then, constructing a second correlation between the sixth display brightness and the preset electrical parameter, and determining the second theoretical electrical parameter based on the second correlation and the second target display brightness corresponding to the current grayscale.

[0102] In this embodiment, constructing the first correlation between the fifth display brightness and the preset electrical parameter can be done by drawing a relationship curve with the fifth display brightness as the vertical axis and the preset electrical parameter as the horizontal axis. In this way, the first theoretical electrical parameter can be determined directly from the relationship curve based on the first target display brightness corresponding to the current grayscale. Similarly, constructing the second correlation between the sixth display brightness and the preset electrical parameter can be done by drawing a relationship curve with the sixth display brightness as the vertical axis and the preset electrical parameter as the horizontal axis. The second theoretical electrical parameter can then be determined from the relationship curve.

[0103] Since the second screen is a mixture of red, green and blue images, the display brightness of the second screen can be directly determined based on the fifth display brightness of the first screen, that is, based on the combined display brightness of the red, green and blue images.

[0104] In one embodiment, after obtaining the first optimal electrical parameters and the second optimal electrical parameters, the selection range of the initial electrical parameters can be determined based on the first optimal electrical parameters and the second optimal electrical parameters. In this way, the initial electrical parameters can be selected from the range close to the optimal solution, reducing the iteration time and improving the correction efficiency. The process can be as follows: First, construct the target electrical parameter range based on the first optimal electrical parameters and the second optimal electrical parameters; then, determine the initial electrical parameters from the target electrical parameter range.

[0105] Specifically, the target electrical parameter can be constructed by using the average of the first and second optimal electrical parameters as the center value of the range, or by using the first and second optimal electrical parameters as the center points of the ranges respectively, and then using the union or intersection of the two parameter ranges as the target parameter range. After constructing the target electrical parameter range, an electrical parameter located within the target parameter range can be randomly selected as the initial electrical parameter, or the electrical parameter closest to the first and second optimal electrical parameters can be selected as the initial electrical parameter.

[0106] The screen display method provided in this embodiment determines a first theoretical electrical parameter and a second theoretical electrical parameter by storing multiple preset electrical parameters corresponding to the display brightness of a first screen and a second screen in the driver chip of the display device. The first theoretical electrical parameter is corrected according to the first target display brightness corresponding to the current gray level, and the second theoretical electrical parameter is corrected according to the second target display brightness corresponding to the current gray level, to obtain a first optimal electrical parameter and a second optimal electrical parameter. An initial electrical parameter is obtained based on the target parameter range constructed by the first optimal electrical parameter and the second optimal electrical parameter, so that the display brightness corresponding to the initial electrical parameter during iterative optimization is close to the target display brightness, reducing the optimization time and improving the efficiency of iterative optimization. Furthermore, since the initial electrical parameter is corrected by the total difference of 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 during iterative optimization, 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 the screen display.

[0107] The screen display method provided in this disclosure embodiment will now be described in detail with reference to a specific example:

[0108] Reference Figure 3 , Figure 3 The diagram illustrates a flowchart of a screen display method provided in an embodiment of this disclosure. When executing the screen display method, a brightness acquisition device is used 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. The maximum brightness, gamma value, and white screen color temperature required for screen display can be input by the user to complete the settings. After preparation is complete, the screen display method is executed, such as... Figure 3As shown, firstly, data is collected for each binding point, which represents a gray level. The specific process is as follows: multiple preset electrical parameters that the driver chip of the display device can output under the current gray level are traversed, and the display device is driven to display the first screen, namely the red screen, green screen and blue screen, using the preset electrical parameters. At this time, the display brightness of the first screen collected by the brightness acquisition device is collected to obtain the fifth display brightness of the first screen driven by each preset parameter.

[0109] Next, the first and second theoretical electrical parameters are determined. Specifically, after recording the fifth display brightness corresponding to each preset parameter, the sixth display brightness of the second screen corresponding to each preset parameter can be determined based on multiple fifth display brightness values. Then, based on the maximum brightness, gamma value, and white screen color temperature required for screen display, the first target display brightness required for the first screen, and the second target display brightness and target color temperature required for the second screen are determined. Next, a first correlation relationship is established between the fifth display brightness and the preset electrical parameters, and the first theoretical electrical parameters are obtained based on the first correlation relationship and the first target display brightness; similarly, a second correlation relationship is established between the sixth display brightness and the preset electrical parameters, and the second theoretical electrical parameters are obtained based on the second correlation relationship and the second target display brightness.

[0110] Next, the second screen iterative correction process is carried out: the second theoretical electrical parameters are used to drive the display device to display the second screen, and the fourth display brightness and color temperature of the second screen are acquired by the brightness acquisition device. Based on 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, the second theoretical electrical parameters are adjusted 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, the second optimal electrical parameters are obtained.

[0111] Similarly, the first screen iterative correction process is performed: the first theoretical electrical parameters are used to drive the display device to display the first screen, and the third display brightness and color temperature of the first screen are obtained by the brightness acquisition device. Based on the difference between the third display brightness and the first target display brightness, the first theoretical electrical parameters are adjusted until the third display brightness meets the requirements, that is, the third display brightness is the first target display brightness. At this time, the first optimal electrical parameters are obtained.

[0112] Finally, the optimal parameters are calculated: After obtaining the optimal parameters for the first and second individual screens, due to screen display characteristics, the RGB values ​​required for the second screen to meet brightness requirements are inconsistent with those required for the first screen. Therefore, after determining the first and second optimal electrical parameters, initial electrical parameters can be obtained first. Then, the initial electrical parameters are used to drive the display device to display the first and second screens respectively, to collect the first display brightness corresponding to the first screen, the second display brightness corresponding to the second screen, and the color temperature. Afterwards, the total difference 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 are determined based on the established loss function. The initial electrical parameters are then optimized based on this total difference. The loss function loss(r,g,b) is shown in Equation 1 below.

[0113]

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

[0115] After calculating the total difference based on the loss function, the size of the preset threshold and the total difference can be compared. When the total difference is greater than or equal to the preset threshold, the initial electrical parameters are corrected. When the total difference is less than the preset threshold, the correction of the initial electrical parameters ends. Then, the display device can be driven to display the screen using the last corrected initial electrical parameters.

[0116] Based on the same inventive concept, this disclosure also provides a screen display device, referring to... Figure 4 , Figure 4 A schematic diagram of a screen display device provided in an embodiment of this disclosure is shown. This screen display device is applied to a display device and includes:

[0117] The acquisition module 301 is used to acquire the initial electrical parameters corresponding to the first screen and the second screen at the same grayscale; 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] The optimization module 302 is used to iteratively optimize the initial electrical parameters. Each optimization includes: based on the current initial electrical parameters, driving the display device to display a first screen and a 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 respectively; 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; 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.

[0119] Display module 303 is used to drive the display device to display the screen based on the initial electrical parameters obtained from the last optimization.

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

[0121] The first determining module is used to determine the total difference based on the first difference, the second difference, and the third difference;

[0122] The first correction module is used to correct the initial electrical parameters based on the total difference.

[0123] In an optional embodiment, multiple initial electrical parameters are included, each corresponding to a multiple grayscale level. The optimization module 302 includes:

[0124] The second determining module is used to determine the first difference, the second difference, and the third difference corresponding to the initial electrical parameters of each gray level;

[0125] The second correction module is used to correct multiple initial electrical parameters based on multiple first differences, multiple second differences, and multiple third differences, so as to obtain the corrected electrical parameters corresponding to each gray level.

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

[0127] The determination submodule is used to determine whether the total difference is less than a preset threshold;

[0128] The correction submodule is used to end the correction of the initial electrical parameters if the condition is met; otherwise, it corrects the initial electrical parameters based on the first difference, the second difference, and the third difference.

[0129] In an optional embodiment, the correction submodule includes:

[0130] The first determining unit is used to 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 image;

[0131] The correction unit is used 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] The third determining module is used to determine the first weight value corresponding to the first difference based on the gamma fitting degree corresponding to the first image.

[0134] The fourth determining module is used to determine the second weight value corresponding to the second difference based on the gamma fitting degree corresponding to the second image.

[0135] The fifth determining module is used to determine the third weight value corresponding to the third difference based on the color temperature matching requirements of the second image.

[0136] The third correction module is used 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] The first acquisition submodule is used to acquire 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 grayscale, and to acquire 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 grayscale.

[0139] The second acquisition submodule is used to acquire 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.

[0140] The first correction module is used to 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 grayscale, so as to obtain the first optimal electrical parameters.

[0141] The second correction module is used to 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 grayscale, so as to obtain the second optimal electrical parameters.

[0142] The sixth determining module is used to determine the initial electrical parameters based on the first optimal electrical parameters and the second optimal electrical parameters.

[0143] In an optional embodiment, the first acquisition submodule includes:

[0144] The first acquisition unit is used to acquire multiple preset electrical parameters corresponding to the current grayscale.

[0145] The second acquisition unit is used to acquire the fifth display brightness of the first screen driven by multiple preset electrical parameters respectively;

[0146] The second determining unit is used to construct a first correlation relationship between the fifth display brightness and the preset electrical parameters, and to determine the first theoretical electrical parameters based on the first correlation relationship and the first target display brightness corresponding to the current grayscale.

[0147] The third determining unit is used to determine the sixth display brightness of the second screen corresponding to each preset electrical parameter based on multiple fifth display brightness values.

[0148] The third acquisition unit is used to construct a second correlation between the sixth display brightness and the preset electrical parameters, and to determine the second theoretical electrical parameters based on the second correlation and the second target display brightness corresponding to the current grayscale.

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

[0150] A construction unit is used to construct a target electrical parameter range based on a first optimal electrical parameter and a second optimal electrical parameter;

[0151] The fourth determining unit is used to determine the initial electrical parameters from the target electrical parameter range.

[0152] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0153] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0154] The above provides a detailed description of a screen display method and apparatus provided by this disclosure. Specific examples have been used to illustrate the principles and implementation methods of this disclosure. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this disclosure. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this disclosure. Therefore, the content of this specification should not be construed as a limitation of this disclosure.

[0155] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

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

[0157] The terms "an embodiment," "embodiment," or "one or more embodiments" as used herein mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this disclosure. Furthermore, please note that the examples of the phrase "in one embodiment" do not necessarily all refer to the same embodiment.

[0158] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of this disclosure may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

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

[0160] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions 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 this disclosure.

Claims

1. A method for displaying a screen, characterized in that, Applied to a display device, the method includes: The initial electrical parameters corresponding to the first and second images at the same grayscale are obtained; wherein the first image includes a red image, a green image, or a blue image, and 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; The initial electrical parameters are iteratively optimized, wherein each optimization includes: Based on the initial electrical parameters at the time, the display device is driven to display the first screen and the second screen respectively, and the first display brightness, the second display brightness and the color temperature when displaying the first screen and the second screen respectively are collected; The initial electrical parameters are corrected 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; 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; Based on the initial electrical parameters obtained from the last optimization, the display device is driven to display an image. The process of obtaining the initial electrical parameters corresponding to the first and second screens at the same grayscale includes: When the display brightness of the first image is obtained as the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters required to drive the first image are determined; and when the display brightness of the second image is obtained as the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters required to drive the second image are determined. 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; Based on the difference between the third display brightness and the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters are corrected to obtain the first optimal electrical parameters. Based on the difference between the fourth display brightness and the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters are corrected to obtain the second optimal electrical parameters; The initial electrical parameters are determined based on the first optimal electrical parameters and the second optimal electrical parameters.

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

3. The screen display method according to claim 1, characterized in that, This includes multiple initial electrical parameters, each corresponding to a multiple grayscale level. The correction of these initial electrical parameters based on a first difference between the first display brightness and the first target display brightness, a second difference between the second display brightness and the second target display brightness, and a third difference between the color temperature and the target color temperature includes: Determine the first difference, second difference, and third difference corresponding to the initial electrical parameters of each gray level; Based on multiple first differences, multiple second differences, and multiple third differences, multiple initial electrical parameters are corrected to obtain corrected electrical parameters corresponding to each gray level.

4. The screen display method according to claim 2, characterized in that, The step of correcting the initial electrical parameters based on the total difference includes: Determine whether the total difference is less than a preset threshold; If so, end the correction of the initial electrical parameters; If not, the initial electrical parameters are corrected based on the first difference, the second difference, and the third difference.

5. The screen display method according to claim 4, characterized in that, The step of correcting the initial electrical parameters based on the first difference, the second difference, and the third difference includes: 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 image; The initial electrical parameters are corrected 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 step of correcting the initial electrical parameters based on a first difference between the first display brightness and the first target display brightness, a second difference between the second display brightness and the second target display brightness, and a third difference between the color temperature and the target color temperature includes: Based on the gamma fit degree corresponding to the first image, determine the first weight value corresponding to the first difference; Based on the gamma fit degree corresponding to the second image, determine the second weight value corresponding to the second difference; Based on the color temperature matching requirements of the second image, determine the third weight value corresponding to the third difference; The initial electrical parameters are corrected 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, When obtaining the display brightness of the first image as the first target display brightness corresponding to the current grayscale, the first theoretical electrical parameters required to drive the first image include: Obtain multiple preset electrical parameters corresponding to the current grayscale; The fifth display brightness of the first screen driven by multiple preset electrical parameters is obtained respectively; Construct a first correlation between the fifth display brightness and the preset electrical parameters, and determine the first theoretical electrical parameters based on the first correlation and the first target display brightness corresponding to the current grayscale. When the display brightness of the second image is obtained as the second target display brightness corresponding to the current grayscale, the second theoretical electrical parameters required to drive the second image include: Based on the multiple fifth display brightness values, determine the sixth display brightness of the second screen corresponding to each preset electrical parameter; A second correlation relationship is established between the sixth display brightness and the preset electrical parameters, and the second theoretical electrical parameters are determined based on the second correlation relationship and the second target display brightness corresponding to the current grayscale.

8. The screen display method according to claim 1, characterized in that, Determining the initial electrical parameters based on the first optimal electrical parameters and the second optimal electrical parameters includes: Based on the first optimal electrical parameters and the second optimal electrical parameters, a target electrical parameter range is constructed; The initial electrical parameters are determined from the target electrical parameter range.

9. A screen display device, characterized in that, Applied to display devices, including: The acquisition module is used to acquire the initial electrical parameters corresponding to the first screen and the second screen at the same grayscale; 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; An optimization module is used to iteratively optimize the initial electrical parameters. Each optimization includes: based on the current initial electrical parameters, driving the display device to display the first image and the second image respectively, and collecting the first display brightness, the second display brightness and the color temperature when displaying the first image, respectively; 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; 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; The display module is used to drive the display device to display the screen based on the initial electrical parameters obtained from the last optimization. The acquisition module includes: The first acquisition submodule is used to acquire 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 grayscale, and to acquire 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 grayscale. The second acquisition submodule is used to acquire 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. The first correction module is used to 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 grayscale, so as to obtain the first optimal electrical parameters. The second correction module is used to 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 grayscale, so as to obtain the second optimal electrical parameters. The sixth determining module is used to determine the initial electrical parameters based on the first optimal electrical parameters and the second optimal electrical parameters.

Images