Display control method, device, display equipment and storage medium for display panel

Abstract

The present invention discloses a display control method, device, display equipment and storage medium of a display panel. The display control method of the display panel comprises: obtaining the current temperature of the environment in which the display panel is located, image data of an image to be displayed, brightness to be displayed and the current refresh frequency; the image data comprises grayscale data to be displayed corresponding to each pixel; according to the grayscale data to be displayed of each pixel, determining the initial grayscale compensation amount of each pixel at the current temperature; according to the brightness to be displayed, determining the brightness compensation coefficient of each pixel corresponding to the brightness to be displayed; according to the current refresh frequency, determining the frequency compensation coefficient of each pixel corresponding to the current refresh frequency; based on the initial grayscale compensation amount, brightness compensation coefficient, frequency compensation coefficient and grayscale data to be displayed of each pixel, determining the actual display grayscale data of each pixel; according to the actual display grayscale data of each pixel, controlling each pixel to display light, which can effectively improve the display effect of the display panel.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a display control method, device, display equipment and storage medium of a display panel. Background Art

[0002] With the development of display technology, users have higher and higher requirements for the display effects of display panels, especially for the color standardization and brightness standardization of images displayed by display panels.

[0003] As the temperature changes, the luminance of pixels of different colors will change to different degrees, causing the image displayed by the display panel to have chromaticity shift and brightness shift, resulting in poor display effect of the display panel. Summary of the invention

[0004] The present invention provides a display control method, device, display equipment and storage medium of a display panel to improve the display effect of the display panel.

[0005] According to one aspect of the present invention, a display control method of a display panel is provided, wherein the display panel comprises a plurality of pixel units arranged in an array, each of the pixel units comprises a plurality of pixels of different colors, and the display control method of the display panel comprises:

[0006] Acquire the current temperature of the environment where the display panel is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency; the image data includes the grayscale data to be displayed corresponding to each of the pixels;

[0007] Determining an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel;

[0008] Determining, according to the brightness to be displayed, a brightness compensation coefficient of each of the pixels corresponding to the brightness to be displayed;

[0009] Determining, according to the current refresh frequency, a frequency compensation coefficient of each of the pixels corresponding to the current refresh frequency;

[0010] Determining actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed;

[0011] According to the actual display grayscale data of each pixel, each pixel is controlled to display light.

[0012] According to another aspect of the present invention, a display control device for a display panel is provided, wherein the display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of pixels of different colors, and the display control device for the display panel includes:

[0013] A data acquisition module, used to acquire the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency; the image data includes the grayscale data to be displayed corresponding to each pixel;

[0014] An initial compensation amount determination module, used to determine an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel;

[0015] A brightness coefficient determination module, used to determine the brightness compensation coefficient of each pixel corresponding to the brightness to be displayed according to the brightness to be displayed;

[0016] A frequency coefficient determination module, used to determine, according to the current refresh frequency, a frequency compensation coefficient of each of the pixels corresponding to the current refresh frequency;

[0017] an actual grayscale determination module, configured to determine actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed;

[0018] The display control module is used to control each pixel to display light according to the actual display grayscale data of each pixel.

[0019] According to another aspect of the present invention, there is provided a display device, comprising: a display panel and a driving chip;

[0020] The display panel includes a display area and a non-display area surrounding the display area; the display area includes a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of pixels of different colors; the non-display area includes a chip setting area; the driving chip is set in the chip setting area;

[0021] The driving chip is used to execute the display control method of the display panel to control the display panel to display.

[0022] According to another aspect of the present invention, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the above-mentioned display control method of the display panel when executed by a processor.

[0023] The display control method of the display panel provided by the present invention, when controlling the display panel to display an image, first obtains the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency, so that the initial grayscale compensation amount, brightness compensation coefficient and frequency compensation coefficient of each pixel at the current temperature can be determined in turn, so that the grayscale data to be displayed of the image to be displayed can be combined with the determined initial grayscale compensation amount, brightness compensation coefficient and frequency compensation coefficient to determine more accurate actual display grayscale data of each pixel, so that the determined actual display grayscale data is not only related to the temperature information of the environment in which the display panel is located, but also related to the display brightness and refresh frequency, so that the determined actual display grayscale data of each pixel is more accurate, thereby making the compensation for the display grayscale data of each pixel more accurate, so that when each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be accurately displayed, and the display effect of the display panel is effectively improved.

[0024] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the relationship between the change degree of the luminous brightness of each color pixel and the temperature;

[0027] Figure 2 It is a schematic diagram of the relationship between the display brightness and grayscale value of the pixel at different temperatures;

[0028] Figure 3 It is a diagram showing the relationship between the color coordinates and the grayscale value at different temperatures;

[0029] Figure 4 is a schematic structural diagram of a display panel provided by an embodiment of the present invention;

[0030] Figure 5 A flow chart of a display control method of a display panel provided by an embodiment of the present invention;

[0031] Figure 6 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0032] Figure 7 is a flow chart of a method for obtaining a temperature-grayscale mapping relationship provided by an embodiment of the present invention;

[0033] Figure 8 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0034] Fig. 9 is a flow chart of a method for obtaining a mapping relationship between brightness and compensation coefficients provided by an embodiment of the present invention;

[0035] Fig.10 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0036] Fig.11 is a flow chart of a method for obtaining a mapping relationship between frequency and compensation coefficient provided by an embodiment of the present invention;

[0037] Fig.12 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0038] Fig.13 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0039] Fig.14 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0040] Fig.15 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention;

[0041] Fig.16 It is a flow chart of a method for obtaining a mapping relationship between brightness and correction coefficient;

[0042] Fig.17 is a structural schematic diagram of a display control device of a display panel provided by an embodiment of the present invention;

[0043] Fig.18 It is a structural schematic diagram of a display device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0045] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0046] The display panel includes a light-emitting element (such as an OLED) and a driving circuit (the driving circuit may include a transistor) for driving the light-emitting element to emit light. The driving circuit can provide a driving signal to the light-emitting element according to the grayscale data to drive the light-emitting element to emit light. As the ambient temperature of the display panel changes, the internal characteristics of the transistor and the luminous efficiency of the light-emitting element will change due to the influence of temperature, so that the display luminous brightness presented by the display panel has deviations. At the same time, as the ambient temperature of the display panel changes, the brightness change rate of the light-emitting elements in pixels of different colors in the same pixel unit is inconsistent. For example, Figure 1 is a schematic diagram of the relationship between the change in brightness of each color pixel and the temperature, wherein the ordinate is the percentage of the brightness change of each pixel, the abscissa is the temperature, the curve LR is the relationship between the change in brightness of the light-emitting element in the red pixel and the temperature, the curve LG is the relationship between the change in brightness of the light-emitting element in the green pixel and the temperature, and the curve LB is the relationship between the change in brightness of the light-emitting element in the blue pixel and the temperature. Figure 1 It can be seen that when the ambient temperature of the display panel changes within a certain temperature range (for example, 28°C to 40°C), the brightness of the light-emitting element in the green pixel changes the most, the brightness of the light-emitting element in the red pixel changes the second most, and the brightness of the light-emitting element in the blue pixel changes the least; and because for a specific color, the brightness ratio presented by pixels of different colors in the same pixel unit is certain, therefore, when the brightness of pixels of different colors in the same pixel unit changes inconsistently with temperature, the brightness ratio presented by the pixels of each color also changes accordingly, resulting in the chromaticity and brightness displayed by the pixel unit being offset, which in turn causes the image displayed by the display panel to have a color cast.

[0047] In addition, the color cast of the display panel is also related to its own display brightness, which can be the dimming brightness of the display panel, for example, the basic display brightness set according to the ambient light or application scenario. Figure 2 : is a schematic diagram of the relationship between the display brightness and grayscale value of the pixel at different temperatures, wherein the ordinate is the display brightness, in nit, and the abscissa is the grayscale value (i.e., the display luminous brightness level of the pixel). L1 is the relationship between the display brightness and the grayscale value of the pixel at 26°C, and L2 is the relationship between the display brightness and the grayscale value of the pixel at 40°C. Figure 2 As shown, at different temperatures, the display brightness of the pixel increases with the increase of the grayscale value, and the higher the temperature, the higher the display brightness of the pixel. Therefore, the ambient temperature of the display panel, the display brightness and the color cast affect each other. Similarly, the ambient temperature of the display panel, the refresh rate and the color cast also affect each other.

[0048] On the basis of the above, Figure 3 : is a schematic diagram of the relationship curve between the color coordinate and the grayscale value at different temperatures, wherein the ordinate is the color coordinate CIE, the abscissa is the grayscale level, L3 is the relationship curve between the color coordinate CIE coordinate x and the grayscale value at 26°C, L4 is the relationship curve between the color coordinate CIE coordinate y and the grayscale value at 26°C, L5 is the relationship curve between the color coordinate CIE coordinate x and the grayscale value at 40°C, and L6 is the relationship curve between the color coordinate CIE coordinate y and the grayscale value at 40°C. Figure 3 As shown, the offset of the color coordinates in the low grayscale range (e.g., 4 to 8 grayscale levels) is large, and the offset of the color coordinates in the high grayscale range (e.g., 8 to 16 grayscale levels) is small. Therefore, the temperature has a more obvious effect on the chromaticity of low grayscale. In summary, the change in temperature will affect the chromaticity and brightness (abbreviated as color brightness) of the pixel, causing the image displayed by the display panel to have color brightness deviation.

[0049] In order to solve the above technical problems, an embodiment of the present invention provides a display control method for a display panel to compensate for the color brightness of an image displayed by the display panel, thereby improving the display effect of the display panel. The method can be executed by a display control device for a display panel provided by an embodiment of the present invention. The display control device for the display panel can be implemented in the form of hardware and / or software. The display control device for the display panel can be configured in a driver chip of a display device.

[0050] Figure 4 is a schematic diagram of the structure of a display panel provided by an embodiment of the present invention, such as Figure 4As shown, the display panel 100 includes a plurality of pixel units 110 arranged in an array, and each pixel unit 110 includes a plurality of pixels 111 of different colors. Exemplarily, the pixel unit 110 may include a red pixel, a green pixel, and a blue pixel, and each pixel 111 may include a light-emitting element and a driving circuit, wherein the driving circuit is used to drive the light-emitting element to emit light, and the light-emitting element in the red pixel may emit red light, the light-emitting element in the green pixel may emit green light, and the light-emitting element in the blue pixel may emit blue light.

[0051] Figure 5 A flow chart of a display control method of a display panel provided by an embodiment of the present invention, combined with reference to Figure 4 and Figure 5 , the method comprising:

[0052] S110, obtaining the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed, and the current refresh frequency.

[0053] The image data includes grayscale data to be displayed corresponding to each pixel.

[0054] Specifically, a temperature sensor may be provided in the display panel, and the current temperature of the environment in which the display panel is located may be obtained through the temperature sensor. For example, the temperature sensor may be a thermistor, and the resistance value of the thermistor may be determined based on the current flowing through the thermistor or the voltage across the thermistor. The current temperature of the environment in which the thermistor is located, that is, the current temperature of the display panel, may be determined based on the resistance value of the thermistor.

[0055] The display grayscale data may be a grayscale voltage or a grayscale value. When the display grayscale data is a grayscale voltage, the grayscale voltage may be provided to the driving circuit of the corresponding pixel, and the driving circuit may drive the light-emitting element to emit light according to the received grayscale voltage. Alternatively, the display grayscale data may also be a grayscale value, in which case different grayscale values ​​correspond to different grayscale voltages. After the display grayscale value is obtained, the grayscale voltage corresponding to the grayscale value may be determined according to the grayscale voltage curve (gamma curve), and the display grayscale voltage may be provided to the driving circuit in the pixel, so that the driving circuit drives the light-emitting element to emit light according to the received display grayscale voltage. When the driving circuit drives the light-emitting element to emit light according to different grayscale voltages, the light-emitting element may present different levels of color brightness.

[0056] The brightness to be displayed of the image to be displayed can be understood as the display brightness of the display panel as a whole. The grayscale voltage required to present the same level of color brightness under different display brightness is different. Exemplarily, in different application scenarios, the display panel can present different display brightnesses. For example, when the display panel is in an environment with high brightness, if the brightness when displaying the image is darker, the human eye will not be able to see the image clearly. Therefore, when the brightness of the environment in which the display panel is located is high, the brightness to be displayed of the image to be displayed will be relatively high. When the display panel is in an environment with low brightness, the brightness when displaying the image is brighter will cause greater stimulation to the human eye and affect the user's vision. Therefore, when the brightness of the environment in which the display panel is located is darker, the brightness to be displayed of the image to be displayed will be relatively low. It can be seen from the above content that the brightness to be displayed of the display panel can be determined according to the current application scenario of the display panel.

[0057] The refresh frequency is the number of images updated by the display panel per unit time. In different application scenarios, the refresh frequency of the display panel is different. For example, if it is in standby mode, the refresh frequency of the display panel is lower, while when displaying dynamic images, the refresh frequency of the display panel is lower. Therefore, the current refresh frequency of the display panel can also be determined according to the application scenario of the display panel.

[0058] S120 , determining an initial grayscale compensation amount of each pixel at a current temperature according to the grayscale data to be displayed of each pixel.

[0059] Specifically, refer to Figure 1 It can be seen that when the grayscale data to be displayed is constant, as the temperature increases, the brightness of pixels of different colors changes to different degrees, that is, the green pixel changes the most, the red pixel changes the second, and the blue pixel changes the least. Therefore, according to the test or experience summary, the initial grayscale compensation amount corresponding to each grayscale data of each pixel at different temperatures is determined, so that after obtaining the grayscale data to be displayed of each pixel, the initial grayscale compensation amount of each pixel can be determined according to the current temperature. Among them, if the grayscale data to be displayed is a grayscale value, the initial grayscale compensation amount also corresponds to the grayscale value, and if the grayscale data to be displayed is a grayscale voltage, the initial grayscale compensation amount also corresponds to the grayscale voltage.

[0060] S130 , determining a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed according to the brightness to be displayed.

[0061] Specifically, refer to Figure 2 and Figure 3As the temperature increases, the display brightness of the image will also increase, and when the temperature is constant, the degree of color deviation of the image decreases as the display brightness increases. Based on this, the brightness compensation coefficient corresponding to each pixel at different brightness can be determined by testing and experience summary. In this way, after obtaining the brightness to be displayed, the brightness compensation coefficient of each pixel corresponding to the brightness to be displayed can be determined.

[0062] S140. Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0063] Specifically, different refresh frequencies when the display panel displays an image may also affect the color brightness of the image to be displayed. Therefore, the frequency compensation coefficient required for each pixel to achieve the required color brightness of the image at different refresh frequencies can be determined based on tests or experience. After obtaining the current refresh frequency, the frequency compensation coefficient of each pixel corresponding to the current refresh frequency can be determined.

[0064] S150 , determining actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed.

[0065] Specifically, after the initial grayscale compensation amount, brightness compensation coefficient and frequency compensation coefficient of each pixel are determined, the grayscale data to be displayed of each pixel can be combined with the initial grayscale compensation amount, brightness compensation coefficient and frequency compensation coefficient to determine the actual display grayscale data of each pixel. In this way, the actual display grayscale data determined is not only related to the temperature information of the environment in which the display panel is located, but also related to the display brightness and refresh frequency, so that the compensation for the display grayscale data of each pixel is more accurate, thereby making the actual display grayscale data of each pixel determined more accurate.

[0066] S160 , controlling each pixel to display light according to actual display grayscale data of each pixel.

[0067] Specifically, each pixel can be scanned row by row to provide the actual display grayscale data (grayscale voltage) corresponding to each pixel to each pixel. The driving circuit in each pixel can provide a driving current to the light-emitting element according to the received actual display grayscale data to drive the light-emitting element to emit light, thereby realizing the display of each pixel, so that each pixel presents a color brightness corresponding to the actual display grayscale data, and then the display panel displays the corresponding image to be displayed.

[0068] When controlling the display panel to display an image, the embodiment of the present invention first obtains the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency, so that the initial grayscale compensation amount, brightness compensation coefficient and frequency compensation coefficient of each pixel at the current temperature can be determined in turn, so that the grayscale data to be displayed of the image to be displayed can be combined with the determined initial grayscale compensation amount, brightness compensation coefficient and frequency compensation coefficient to determine more accurate actual display grayscale data of each pixel, so that the determined actual display grayscale data is not only related to the temperature information of the environment in which the display panel is located, but also related to the display brightness and refresh frequency, so that the determined actual display grayscale data of each pixel is more accurate, thereby making the compensation for the display grayscale data of each pixel more accurate, so that when each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be accurately displayed, effectively improving the display effect of the display panel.

[0069] Optional, Figure 6 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention. Figure 6 As shown, the display control method of the display panel includes:

[0070] S210, obtaining the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed, and the current refresh frequency.

[0071] S220, obtaining a mapping relationship between the temperature and grayscale of pixels of each color.

[0072] The temperature-grayscale mapping relationship includes the grayscale compensation amount of each color pixel under different ambient temperatures and different levels of standard color brightness.

[0073] Specifically, if the grayscale data required for the pixel to present a certain level of standard color brightness at the current temperature is the actual display grayscale data, and the grayscale data required for the pixel to present the standard color brightness at the standard temperature (such as normal room temperature) is the grayscale data to be displayed, then when the current temperature is different from the standard temperature, there will be a difference between the actual display grayscale data and the grayscale data to be displayed, and the difference can be used as the grayscale compensation amount corresponding to the standard color brightness of the level; at the same time, under different levels of standard color brightness, the degree of difference between the actual display grayscale and the grayscale to be displayed (i.e., the grayscale compensation amount) will also be different. Therefore, when determining the initial grayscale compensation amount of each pixel at the current temperature based on the grayscale data to be displayed of each pixel, the grayscale compensation amount of each color pixel under different ambient temperatures and different levels of standard color brightness can be first obtained, that is, the temperature and grayscale mapping relationship of each color pixel can be obtained. Among them, the temperature and grayscale mapping relationship can be a relationship formula determined based on experience, or a relationship table obtained through a binding point test.

[0074] S230 , determining the standard color brightness to be displayed for each pixel according to the grayscale data to be displayed for each pixel.

[0075] Specifically, from the above content, it can be seen that the display grayscale data required for the pixel to present a certain level of standard color brightness at a standard temperature (such as normal room temperature) is the grayscale data to be displayed. Therefore, after obtaining the grayscale data to be displayed of each pixel, the level of standard color brightness to be displayed of each pixel can be determined accordingly.

[0076] S240 , determining an initial grayscale compensation amount of each pixel according to the current temperature and the standard color brightness to be displayed by each pixel and based on a mapping relationship between temperature and grayscale.

[0077] Specifically, after determining the standard color brightness to be displayed for each pixel, the level of the standard color brightness to be displayed can be determined, and at this time, according to the mapping relationship between temperature and grayscale, the initial grayscale compensation amount corresponding to the current temperature at the standard color brightness of the level is determined. Exemplarily, when the mapping relationship between temperature and grayscale is a relational expression, the current temperature and the standard color brightness can be substituted into the relational expression, so that the initial grayscale compensation amount corresponding to the current temperature and the standard color brightness can be calculated, or when the mapping relationship between temperature and grayscale is a relational table, the initial grayscale compensation amount corresponding to the current temperature and the standard color brightness can be directly determined by looking up the relational table.

[0078] S250: Determine, according to the brightness to be displayed, a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed.

[0079] S260. Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0080] S270 , determining actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed.

[0081] S280 , controlling each pixel to display light according to actual display grayscale data of each pixel.

[0082] The embodiment of the present invention determines the initial grayscale compensation amount of each pixel corresponding to the standard color brightness to be displayed at the current temperature through the temperature and grayscale mapping relationship, so that the initial grayscale compensation amount is more accurate due to the comprehensive factors of both temperature and the standard color brightness to be displayed, thereby making the actual display grayscale data determined according to the initial grayscale compensation amount more accurate. In this way, when each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be accurately displayed, which can improve the display effect of the display panel.

[0083] Optional, Figure 7 is a flow chart of a method for obtaining a temperature-grayscale mapping relationship provided by an embodiment of the present invention, such as Figure 7 As shown, the method includes:

[0084] S221. When the ambient temperature of the display panel is the standard temperature, obtain first standard grayscale data in which pixels of each color correspond to standard color brightness of different levels.

[0085] Specifically, the standard temperature can be determined according to the conventional application scenarios of the display panel. For example, the display panel is most likely to be used in a standard room temperature environment for a long time, and the standard temperature can be exemplarily determined as a temperature in the range of 22°C to 25°C. Grayscale data of each pixel corresponding to the display panel displaying each level of standard color brightness at the standard temperature can be obtained in sequence, and the obtained grayscale data is used as the first standard grayscale data corresponding to each pixel displaying each level of color brightness at the standard temperature.

[0086] S222. When the ambient temperature of the display panel is the test temperature, obtain first test grayscale data in which pixels of each color correspond to standard color brightness of different levels.

[0087] Specifically, at different ambient temperatures, the grayscale data corresponding to the same pixel when displaying the same level of standard color brightness is different. The ambient temperature of the display panel can be adjusted to different test temperatures, and the grayscale data corresponding to the same pixel displaying each level of standard color brightness at the test temperature, i.e., the first test grayscale data, can be obtained in sequence. By analyzing the grayscale data corresponding to each pixel of different colors displaying each level of standard color brightness at the same test temperature, the first test grayscale data corresponding to each pixel of each color displaying different levels of standard color brightness at the same test temperature can be determined.

[0088] S223, determining a grayscale compensation amount of the pixel of the same color at the standard color brightness of the same level at the current test temperature according to the first standard grayscale data and the first test grayscale data of the pixel of the same color at the standard color brightness of the same level.

[0089] Specifically, after obtaining the first standard grayscale data and the first test grayscale data of pixels of each color at each level of standard color brightness, the difference between the first test grayscale data and the first standard grayscale data of pixels of the same color at the same level of standard color brightness can be determined, and the difference is used as the grayscale compensation amount of the pixels of the color at the standard color brightness at the current test temperature, and then the grayscale compensation amount corresponding to the standard color brightness of each level for pixels of each color at the current test temperature can be determined.

[0090] S224, determine whether the current temperature test times reaches the first preset test times; if not, execute S225; if yes, execute S226.

[0091] S225. Adjust the test temperature according to the first preset rule; and return to execute S222.

[0092] S226 , determining the relationship table of grayscale compensation amounts corresponding to pixels of each color and standard color brightness of different levels at different test temperatures as a temperature-grayscale mapping relationship.

[0093] Specifically, after completing the determination of the grayscale compensation amount of each pixel at each level of color brightness at the current test temperature, the number of times the grayscale compensation amount is determined can be obtained, that is, the number of temperature adjustments can be obtained, and it can be used as the current temperature test number, and it can be judged whether the current temperature test number reaches the first preset test number. If it is determined that the current temperature test number does not reach the first preset number, the test temperature is adjusted according to the first preset rule. After adjusting the test temperature, at the adjusted test temperature, the first test grayscale data of the one-to-one correspondence between the pixels of each color and the standard color brightness of different levels is obtained again to obtain the grayscale compensation amount corresponding to the pixels of each color at each level of standard color brightness at the adjusted test temperature. This cycle is repeated until it is determined that the temperature test number reaches the first preset test number. Then, the mapping relationship between the grayscale compensation amount of the pixels of each color and the level of the ambient temperature and the standard color brightness, that is, the temperature and grayscale mapping relationship, can be determined.

[0094] Among them, Table 1 is a temperature and grayscale mapping relationship table of each color pixel, and the grayscale compensation amount of each color pixel at each level of standard color brightness at each test temperature can be recorded in a table. After completing the cycle, the table obtained can be used as the temperature and grayscale mapping relationship of each color pixel. In Table 1, T0~TN represents N+1 test temperatures Temp, "Rm,n" represents the grayscale compensation amount offset corresponding to the red pixel when the test temperature is Tm and the standard color brightness is grayscale n; "Gm,n" represents the grayscale compensation amount offset corresponding to the green pixel when the test temperature is Tm and the standard color brightness is grayscale n; "Rm,n" represents the grayscale compensation amount offset corresponding to the blue pixel when the test temperature is Tm and the standard color brightness is grayscale n.

[0095] Table 1 Temperature and grayscale mapping relationship of each color pixel

[0096]

[0097] Exemplarily, the first preset rule may be a rule for adjusting the temperature according to a gradient. For example, after completing the measurement of the standard temperature, the temperature may be increased and then decreased according to a preset gradient based on the standard temperature as a reference; or after completing the measurement of the standard temperature, the data at the highest temperature to be tested may be directly obtained, and then the temperature may be decreased according to a preset gradient based on the highest test temperature as a reference; or after completing the measurement of the standard temperature, the data at the lowest temperature to be tested may be directly obtained, and then the temperature may be increased according to a preset gradient based on the lowest test temperature as a reference. The preset gradient may be set according to design requirements, for example, it may be 5°C. The range of the test temperature may be set according to the future application scenarios of the display panel. For example, if the batch of display panels will be used in colder areas, the test temperature range may be set to -40°C to 40°C. If the batch of display panels will be used in warmer areas, the test temperature range may be set to 10°C to 40°C.

[0098] The embodiment of the present invention obtains a temperature and grayscale mapping relationship that can reflect the relationship between the grayscale compensation amount of pixels of each color and the level relationship between the ambient temperature and the standard color brightness through a binding point test, so that the reliability of the temperature and grayscale mapping relationship is relatively high. In this way, the initial grayscale compensation corresponding to the grayscale data to be displayed at the current temperature determined by the temperature and grayscale mapping relationship is relatively accurate, so that the actual display grayscale data determined according to the initial compensation amount is relatively accurate. Therefore, when each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be accurately displayed, which can improve the display effect of the display panel.

[0099] Optional, Figure 8 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention, such as Figure 8 As shown, the display control method of the display panel includes:

[0100] S310, obtaining the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed, and the current refresh frequency.

[0101] S320 , determining an initial grayscale compensation amount of each pixel at a current temperature according to the grayscale data to be displayed of each pixel.

[0102] S330, obtaining a mapping relationship between brightness and compensation coefficient.

[0103] The mapping relationship between brightness and compensation coefficient includes brightness compensation coefficients of pixels of different colors when the display panel presents different display brightness.

[0104] Specifically, at the same ambient temperature, the display grayscale data required for each pixel to present a certain level of standard color brightness is related to the overall display brightness required to be presented by the display panel, and the display grayscale data required for different display brightnesses are also different. At the same ambient temperature, if the display grayscale data required for the pixel to present a certain level of standard color brightness when the display panel is at the standard display brightness is used as the standard grayscale data, and when the display panel is at other display brightnesses, the display grayscale data required for the pixel to present the standard color brightness of the level is used as the actual grayscale data, there will be a certain difference between the actual grayscale data and the standard grayscale data. At this time, the ratio between the actual grayscale data and the standard grayscale data can be used as the brightness compensation coefficient corresponding to the standard color brightness of the level. The brightness compensation coefficient of each color pixel when the display panel presents different display brightnesses can be obtained by testing, so that the brightness compensation coefficient of each color pixel and the brightness and compensation coefficient mapping relationship of the display brightness can be determined.

[0105] S340 , determining a brightness compensation coefficient of each pixel according to the brightness to be displayed and based on a mapping relationship between the brightness and the compensation coefficient.

[0106] Specifically, the brightness to be displayed may be the expected display brightness determined according to the grayscale data to be displayed in the application scenario, and the mapping relationship between the brightness and the compensation coefficient may be a relational expression determined based on experience, or a relational table obtained through a binding point test. Exemplarily, when the mapping relationship between the brightness and the compensation coefficient is a relational expression, the determined brightness to be displayed may be substituted into the relational expression, so that the brightness compensation coefficient corresponding to the brightness to be displayed may be determined. If the mapping relationship between the brightness and the compensation coefficient is a relational table, the brightness to be displayed may be mapped to the relational table by looking up the table to determine the corresponding brightness compensation coefficient.

[0107] S350. Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0108] S360: Determine actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed.

[0109] S370, controlling each pixel to display light according to the actual display grayscale data of each pixel.

[0110] The embodiment of the present invention takes into account the influence of the display brightness of the display panel on the standard color brightness presented by the pixel, and determines the brightness compensation coefficient of each pixel corresponding to the brightness to be displayed through the mapping relationship between the brightness and the compensation coefficient, so that the brightness compensation coefficient is more accurate, thereby making the actual display grayscale data determined according to the brightness compensation coefficient more accurate, which is beneficial to improving the accuracy of image display.

[0111] Optional, Fig. 9 is a flow chart of a method for obtaining a mapping relationship between brightness and compensation coefficients provided by an embodiment of the present invention, such as Fig. 9 As shown, the method includes:

[0112] S331. When the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a standard display brightness, obtain second standard grayscale data when pixels of each color are at a preset level of standard color brightness.

[0113] Specifically, the preset temperature may be a standard room temperature, such as 25°C. The preset levels of the standard display brightness and the standard color brightness may be set according to the design requirements. For example, the embodiment of the present invention may determine 500nit as the standard display brightness; the standard color brightness of each pixel may be divided into 256 levels from 0 to 255, and the higher the level, the higher the standard color brightness. In this case, the standard color brightness of level 255 may be used as the standard color brightness of the preset level. By providing the corresponding display grayscale data to the pixel to control the pixel to emit light, the current color brightness of the pixel may be obtained. When the color brightness does not reach the preset level of standard color brightness, the display grayscale data provided to the pixel may be adjusted until the color brightness reaches the preset level of standard color brightness, and the current display grayscale data may be determined as the second standard grayscale data.

[0114] S332, when the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a test display brightness, obtain second test grayscale data when the pixels of each color are at a preset level of standard color brightness.

[0115] Specifically, the display brightness of the display panel is adjusted to the test display brightness, and under a preset temperature environment, the pixel is provided with display grayscale data to control the pixel to emit light. If the current color brightness of the pixel does not reach the standard color brightness of the preset level, the display grayscale data provided to the pixel is adjusted until the color brightness presented by the pixel reaches the standard color brightness of the preset level, and the current display grayscale data is determined as the second test grayscale data. The number of preset levels can be set to multiple, that is, the second test grayscale data corresponding to the standard color brightness of multiple preset levels of each pixel under the test display brightness can be obtained.

[0116] S333, determining a brightness compensation coefficient of a pixel of the same color at a current test display brightness according to the second standard grayscale data and the second test grayscale data when the pixel of the same color has a standard color brightness of the same preset level.

[0117] Specifically, based on the above steps, the second standard grayscale data and the second test grayscale data of each color pixel at the same preset level of standard color brightness can be obtained. Under the test display brightness, the brightness compensation coefficient of the pixel of a certain color can be the ratio of the second test grayscale data to the second standard grayscale data at the same preset level of color brightness at the preset temperature. For example, if the grayscale value required for the pixel of a certain color to display the standard color brightness of 255 levels is Q1 when the standard display brightness is 500nit, and the grayscale value required for the pixel of the color to display the standard color brightness of 255 levels is Q2 when the test display brightness is 200nit, then the brightness compensation coefficient of the pixel of the color at the display brightness of 200nit is Q2 / Q1. The average value of the brightness compensation coefficient of each pixel tested at each preset level of standard color brightness can be used as the brightness compensation coefficient of each pixel at the test brightness, and the brightness compensation coefficient of each pixel at a preset level of standard color brightness (such as 255 levels of color brightness) can also be used as the brightness compensation coefficient of each pixel at the test brightness.

[0118] S334, determine whether the current number of brightness tests reaches the second preset number of tests; if not, execute S335; if yes, execute S336.

[0119] S335. Adjust the test display brightness according to the second preset rule, and return to execute S332.

[0120] S336, determining the relationship table of brightness compensation coefficients of pixels of each color at different test display brightnesses as a mapping relationship between brightness and compensation coefficients.

[0121] Specifically, after completing the determination of the brightness compensation coefficient of each pixel under the current test display brightness, the number of times the grayscale compensation amount is determined can be obtained, that is, the number of times the display brightness is adjusted can be obtained, and it can be used as the current brightness test number, and it can be judged whether the current brightness test number reaches the second preset test number. If it is determined that the current brightness test number does not reach the second preset number, the test display brightness is adjusted according to the second preset rule. After adjusting the test display brightness, based on the adjusted test display brightness, the second test grayscale data when each pixel presents a preset level of standard color brightness is obtained again to obtain the brightness compensation coefficient corresponding to the pixels of each color under the adjusted test display brightness. This cycle is repeated until it is determined that the brightness test number reaches the second preset test number, and then the mapping relationship between the brightness compensation coefficient of the pixels of each color and the display brightness of the display panel can be determined.

[0122] Exemplarily, Table 2 is a brightness and compensation coefficient mapping relationship table, wherein DBV Band represents the display brightness level, Band x represents the display brightness of the xth level, "DBV_Gain Rx" represents the brightness compensation coefficient of the red pixel at the xth level of display brightness, "DBV_Gain Gx" represents the brightness compensation coefficient of the green pixel at the xth level of display brightness, and "DBV_Gain Bx" represents the brightness compensation coefficient of the blue pixel at the xth level of display brightness.

[0123] Table 2 Brightness and compensation coefficient mapping table

[0124] DBV Band DBV_Gain R DBV_Gain G DBV_Gain B Band1 DBV_Gain R1 DBV_Gain G1 DBV_Gain B1 Band2 DBV_Gain R2 DBV_Gain G2 DBV_Gain B2 Band3 DBV_Gain R3 DBV_Gain G3 DBV_Gain B3 Band4 DBV_Gain R4 DBV_Gain G4 DBV_Gain B4 Band5 DBV_Gain R5 DBV_Gain G5 DBV_Gain B5 … Bandx DBV_Gain Rx DBV_Gain Gx DBV_Gain Bx

[0125] Exemplarily, the second preset rule may be a rule for adjusting the test display brightness in a gradient, for example, the test display brightness may be increased or decreased in a test range with a gradient of 100 nit.

[0126] The embodiment of the present invention specifically obtains the brightness and grayscale mapping relationship that can reflect the display brightness of the display panel and the brightness compensation coefficient of the pixels of each color through a binding point test, so that the reliability of the brightness and compensation coefficient mapping relationship is high. In this way, the brightness compensation coefficient corresponding to the brightness to be displayed at the current temperature determined according to the brightness and compensation coefficient mapping relationship is more accurate, so that the actual display grayscale data determined according to the brightness compensation coefficient is more accurate. Therefore, when each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be accurately displayed, which can improve the display effect of the display panel.

[0127] Optional, Fig.10 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention, such as Fig.10 As shown, the display control method of the display panel includes:

[0128] S410, obtaining the current temperature of the environment in which the display panel is located, image data of the image to be displayed, brightness to be displayed, and the current refresh frequency.

[0129] S420 , determining an initial grayscale compensation amount of each pixel at a current temperature according to the grayscale data to be displayed of each pixel.

[0130] S430 , determining a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed according to the brightness to be displayed.

[0131] S440: Obtain a mapping relationship between frequency and compensation coefficient.

[0132] The mapping relationship between frequency and compensation coefficient includes frequency compensation coefficients of pixels of different colors when the display panel has different refresh frequencies.

[0133] Specifically, at the same ambient temperature, when each pixel is displayed according to a certain level of standard color brightness, the different refresh frequencies of the display panel will cause the actual display grayscale data to differ from the preset data to be displayed, and the required display grayscale data will also be different when the refresh frequencies are different. At the standard ambient temperature, when the refresh frequency of the display panel is set to the standard refresh frequency (for example, 60Hz), the display grayscale data required for the pixel to present a certain level of standard color brightness is used as the standard grayscale data, and when the refresh frequency is set to other refresh frequencies, the display grayscale data required for the pixel to present the standard color brightness of the level is used as the actual grayscale data. There will be a certain difference between the actual grayscale data and the standard grayscale data. At this time, the ratio between the actual grayscale data and the standard grayscale data can be used as the frequency compensation coefficient corresponding to the standard color brightness of the level. The frequency compensation coefficient of each color pixel at different refresh frequencies can be obtained by testing, so that the frequency and compensation coefficient mapping relationship between the refresh frequency and the frequency compensation coefficient of each color pixel can be determined.

[0134] S450 , determining a frequency compensation coefficient for each pixel according to the current refresh frequency and based on a mapping relationship between the frequency and the compensation coefficient.

[0135] Specifically, the mapping relationship between frequency and compensation coefficient can be a relational expression determined based on experience, or a relational table obtained through a binding point test. Exemplarily, when the mapping relationship between frequency and compensation coefficient is a relational expression, the current refresh frequency can be substituted into the relational expression to determine the frequency compensation coefficient corresponding to the current refresh frequency. If the mapping relationship between frequency compensation coefficient is a relational table, the current refresh frequency can be mapped into the relational table by looking up the table to determine the frequency compensation coefficient corresponding to the current refresh frequency.

[0136] S460 , determining actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed.

[0137] S470, controlling each pixel to display light according to the actual display grayscale data of each pixel.

[0138] The embodiment of the present invention takes into account the influence of the refresh frequency of the display panel on the standard color brightness presented by the pixel, and determines the frequency compensation coefficient of each pixel corresponding to the current refresh frequency through the mapping relationship between the frequency and the compensation coefficient, so that the frequency compensation coefficient is more accurate, thereby making the actual display grayscale data determined according to the frequency compensation coefficient more accurate, which is beneficial to improving the accuracy of image display.

[0139] Optional, Fig.11is a flow chart of a method for obtaining a mapping relationship between frequency and compensation coefficient provided by an embodiment of the present invention, such as Fig.11 As shown, the method includes:

[0140] S441. When the ambient temperature of the display panel is a preset temperature and the refresh rate of the display panel is a standard refresh rate, obtain third standard grayscale data when the pixels of each color are at a preset level of standard color brightness.

[0141] Specifically, the standard refresh frequency and the preset level of standard color brightness can be set according to the design requirements. For example, in the embodiment of the present invention, 60 Hz can be determined as the standard refresh frequency, and the preset level of standard color brightness can be 255. Under the preset temperature environment and when the refresh frequency is the standard refresh frequency, the corresponding display grayscale data is provided to the pixel to control the pixel to emit light, so that the current color brightness of the pixel can be obtained. When the color brightness does not reach the standard color brightness of the preset level, the display grayscale data provided to the pixel can be adjusted until the color brightness of the pixel reaches the standard color brightness of the preset level, and the current display grayscale data can be determined as the third standard grayscale data of the pixel.

[0142] S442. When the ambient temperature of the display panel is a preset temperature and the refresh frequency of the display panel is a test refresh frequency, obtain third test grayscale data when the pixels of each color are at a preset level of standard color brightness.

[0143] Specifically, the refresh frequency of the display panel is adjusted to the test refresh frequency, and under a preset temperature environment, the display grayscale data is provided to the pixel again to control the pixel to emit light. If the current color brightness of the pixel does not reach the standard color brightness of the preset level, the display grayscale data provided to the pixel is adjusted until the color brightness of the pixel reaches the standard color brightness of the preset level, and the current display grayscale data is determined as the third test grayscale data of the pixel. Similarly, the number of preset levels can be set to multiple, that is, the third test grayscale data corresponding to the standard color brightness of multiple preset levels of each pixel under the test refresh frequency can be obtained.

[0144] S443, determining a frequency compensation coefficient of the pixel of the same color at the current test refresh frequency according to the third standard grayscale data and the third test grayscale data when the pixel of the same color is of the standard color brightness of the same preset level.

[0145] Specifically, based on the above steps, the third standard grayscale data and the third test grayscale data of each color pixel under the same preset level of standard color brightness can be obtained. Under the test refresh frequency, the frequency compensation coefficient of a certain color pixel can be the ratio of the third test grayscale data to the third standard grayscale data under the same preset level of color brightness at the preset temperature. The average value of the frequency compensation coefficients of each pixel tested under each preset level of standard color brightness can be used as the frequency compensation coefficient of each pixel under the test frequency, and the frequency compensation coefficient of each pixel under a preset level of standard color brightness (for example, 255 levels of color brightness) can also be used as the frequency compensation coefficient of each pixel under the test frequency.

[0146] S444, determine whether the current frequency test number reaches the third preset test number; if not, execute S445; if yes, execute S446.

[0147] S445. Adjust the test refresh frequency according to the third preset rule, and return to execute S442.

[0148] S446, determining a relationship table of frequency compensation coefficients of pixels of each color at different test refresh frequencies as a mapping relationship between frequency and compensation coefficient.

[0149] Specifically, after completing the determination of the frequency compensation coefficient of each pixel under the current test refresh frequency, the number of times the grayscale compensation amount is determined can be obtained, that is, the number of times the refresh frequency is adjusted, and it is used as the current frequency test number, and it is judged whether the current frequency test number reaches the third preset test number. If it is determined that the current frequency test number does not reach the third preset number, the test refresh frequency is adjusted according to the third preset rule. After adjusting the test refresh frequency, under the adjusted test display brightness, the third test grayscale data when each pixel presents a preset level of standard color brightness is obtained again to obtain the corresponding frequency compensation coefficient of the pixel of each color under the adjusted test refresh frequency. This cycle is repeated until it is determined that the brightness test number reaches the third preset test number. Then, the mapping relationship between the frequency compensation coefficient of the pixel of each color and the refresh frequency of the display panel can be determined.

[0150] Exemplarily, Table 3 is a frequency and compensation coefficient mapping relationship table, wherein Freq mode represents the refresh frequency mode, HFRx represents the xth test refresh frequency, "Freq_Gain Rx" represents the frequency compensation coefficient of the red pixel at the xth test refresh frequency, "Freq_Gain Gx" represents the frequency compensation coefficient of the green pixel at the xth test refresh frequency, and "Freq_Gain Bx" represents the frequency compensation coefficient of the blue pixel at the xth test refresh frequency.

[0151] Table 3 Frequency and compensation coefficient mapping relationship table

[0152] Freq mode Freq_Gain R Freq_Gain G Freq_Gain B HFR1 Freq_Gain R1 Freq_Gain G1 Freq_Gain B1 HFR 2 Freq_Gain R2 Freq_Gain G2 Freq_Gain B2 HFR 3 Freq_Gain R3 Freq_Gain G3 Freq_Gain B3 HFR 4 Freq_Gain R4 Freq_Gain G4 Freq_Gain B4 HFR 5 Freq_Gain R5 Freq_Gain G5 Freq_Gain B5 … HxF Freq_Gain Rx Freq_Gain Gx Freq_Gain Bx

[0153] Exemplarily, the third preset rule may be a rule for adjusting the test refresh frequency in a gradient, for example, the test refresh frequency may be increased or decreased within the test range in a gradient of 10 Hz.

[0154] The embodiment of the present invention specifically obtains the frequency and grayscale mapping relationship that can reflect the refresh frequency of the display panel and the frequency compensation coefficient of each color pixel through a binding point test, so that the reliability of the frequency and compensation coefficient mapping relationship is high. In this way, the frequency compensation coefficient corresponding to the current refresh frequency at the current temperature determined according to the frequency and compensation coefficient mapping relationship is more accurate, so that the actual display grayscale data determined according to the frequency compensation coefficient is more accurate. Therefore, when each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be displayed accurately, which can improve the display effect of the display panel.

[0155] Optional, Fig.12 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention, such as Fig.12 As shown, the display control method of the display panel includes:

[0156] S510, obtaining the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed, and the current refresh frequency.

[0157] S520 , determining an initial grayscale compensation amount of each pixel at a current temperature according to the grayscale data to be displayed of each pixel.

[0158] S530: Determine, according to the brightness to be displayed, a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed.

[0159] S540: Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0160] S550: Based on the first formula, calculate the actual grayscale compensation amount of the pixel according to the initial grayscale compensation amount, the brightness compensation coefficient and the frequency compensation coefficient of the same pixel.

[0161] The first formula is: TGO = DS*FS*Offset; TGO is the actual grayscale compensation amount of the pixel, DS is the brightness compensation coefficient of the pixel, FS is the frequency compensation coefficient of the pixel, and Offset is the initial grayscale compensation amount of the pixel. That is, the product of the brightness compensation coefficient, the frequency compensation coefficient and the initial grayscale compensation amount of the pixel can be used as the actual grayscale compensation amount of the pixel.

[0162] S560: Determine actual display grayscale data of the pixel according to the actual grayscale compensation amount and the grayscale data to be displayed.

[0163] Exemplarily, the actual grayscale compensation amount of the pixel and the grayscale data to be displayed may be added to determine the actual display grayscale data of the pixel.

[0164] S570 , controlling each pixel to display light according to the actual display grayscale data of each pixel.

[0165] The embodiment of the present invention combines the initial grayscale compensation amount, the brightness compensation coefficient, and the frequency compensation coefficient to determine a relatively accurate actual grayscale compensation amount for each pixel, so that a relatively accurate actual display grayscale of each pixel can be determined based on the actual grayscale compensation amount and the grayscale data to be displayed, which is beneficial to improving the display performance of the image display.

[0166] Optional, Fig.13 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention, such as Fig.13 As shown, the display control method of the display panel includes:

[0167] S610, obtaining the current temperature of the environment in which the display panel is located, image data of the image to be displayed, brightness to be displayed, and the current refresh frequency.

[0168] S620: Determine an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel.

[0169] S630: Determine, according to the brightness to be displayed, a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed.

[0170] S640. Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0171] S650: Based on the first formula, calculate the actual grayscale compensation amount of the pixel according to the initial grayscale compensation amount, the brightness compensation coefficient and the frequency compensation coefficient of the same pixel.

[0172] S660, obtaining a correction coefficient corresponding to the brightness to be displayed and a current level of the standard color brightness corresponding to the grayscale data to be displayed of the pixel.

[0173] S670: Correct the actual grayscale compensation amount according to the current level and correction coefficient of each pixel.

[0174] Specifically, according to the grayscale data to be displayed, the current level of the standard color brightness corresponding to the grayscale data to be displayed, that is, the expected level of the standard color brightness, can be determined. Since it may not be possible to obtain the brightness compensation coefficient corresponding to each level of standard color brightness during actual testing, the brightness compensation coefficient corresponding to one level of standard color brightness (for example, 255 levels of standard color brightness) under the same display brightness can be used as the brightness compensation coefficient of each level of standard color brightness under the display brightness, or the average value of the brightness compensation coefficients corresponding to several levels of standard color brightness under the display brightness can be used as the brightness compensation coefficient of each level of standard color brightness. When the levels of standard color brightness differ greatly, a large error will also occur between the brightness compensation coefficients of each pixel under the same temperature and the same display brightness. Based on this, after determining the actual grayscale compensation amount of a certain pixel, the correction coefficient corresponding to the brightness to be displayed and the current level of the standard color brightness corresponding to the grayscale data to be displayed of the pixel can be obtained, so that the brightness compensation coefficient corresponding to the brightness to be displayed can be corrected by the correction coefficient, and then the actual grayscale compensation amount can be corrected, so that the accuracy of the color brightness when the image to be displayed can be further displayed.

[0175] S680 , determining actual display grayscale data of the pixel according to the actual grayscale compensation amount and the grayscale data to be displayed.

[0176] S690, controlling each pixel to display light according to actual display grayscale data of each pixel.

[0177] After determining the actual grayscale compensation amount, the embodiment of the present invention obtains the correction coefficient related to the brightness to be displayed of the display panel and the current level of the standard color brightness corresponding to the grayscale data to be displayed of the pixel, and can correct the actual grayscale compensation amount according to the current level and the correction coefficient of each pixel, thereby reducing the error of the brightness compensation coefficient caused by the level difference of the standard color brightness under the same display brightness, and can further improve the accuracy of the color brightness when displaying the image to be displayed.

[0178] Optional, Fig.14 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention, such as Fig.14 As shown, the display control method of the display panel includes:

[0179] S711. Obtain the current temperature of the environment in which the display panel is located, image data of the image to be displayed, brightness to be displayed, and current refresh frequency.

[0180] S712: Determine an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel.

[0181] S713: Determine, according to the brightness to be displayed, a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed.

[0182] S714. Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0183] S715. Based on the first formula, calculate the actual grayscale compensation amount of the pixel according to the initial grayscale compensation amount, the brightness compensation coefficient and the frequency compensation coefficient of the same pixel.

[0184] S716, obtaining a correction coefficient corresponding to the brightness to be displayed and a current level of the standard color brightness corresponding to the grayscale data to be displayed of the pixel.

[0185] S717, obtaining an initial grayscale compensation amount offsetm corresponding to the standard color brightness of the pixel at the first preset level at the current temperature.

[0186] S718. Calculate the actual grayscale compensation amount TGOm when the pixel is at the standard color brightness of the first preset level according to the initial grayscale compensation amount offsetm corresponding to the standard color brightness of the first preset level, the brightness compensation coefficient and the frequency compensation coefficient; wherein TGOm=DS*FS*offsetm.

[0187] Specifically, the first preset level can be set according to design requirements, for example, it can be 255 levels. At the current temperature, the initial grayscale compensation amount offsetm corresponding to each pixel displaying the standard color brightness of the first preset level, as well as the brightness compensation coefficient and frequency compensation coefficient at the first preset level of standard color brightness can be obtained, so that the actual grayscale compensation amount TGOm at the standard color brightness of the first preset level can be determined based on the formula TGOm=DS*FS*offsetm.

[0188] S719, calculating the corrected actual grayscale compensation amount TGO′ according to the current level of the pixel, the actual grayscale compensation amount and the correction coefficient, and the actual grayscale compensation amount TGOm corresponding to the standard color brightness of the pixel at the first preset level.

[0189] Among them, TGO′=TGO+(TGOm-TGO)*(n / m)*DGS; n is the current level, m is the first preset level, and DSG is the correction coefficient.

[0190] Exemplarily, taking the first preset level m as 255 and the current level n as 200 as an example, the actual grayscale compensation amount corresponding to the first preset level 255 is TGO255, and the actual grayscale compensation amount corresponding to the current level 200 is TGO200. Then the corrected actual grayscale compensation amount TGO200′=TGO200+(TGO255-TGO200)*(200 / 255)*DGS. In this way, after determining the actual grayscale compensation amount TGOm at the standard color brightness of the first preset level, the actual grayscale data compensation amount is corrected by the above formula according to the correction coefficient of the standard color brightness of the current level, so that the actual grayscale compensation amount corresponding to the standard color brightness of the current level is more accurate, thereby further improving the accuracy of the color brightness when the image to be displayed is displayed.

[0191] S720 , determining actual display grayscale data of the pixel according to the actual grayscale compensation amount and the grayscale data to be displayed.

[0192] S721. Control each pixel to display light according to the actual display grayscale data of each pixel.

[0193] After determining the actual grayscale compensation amount corresponding to the standard color brightness of the first preset level and the actual grayscale compensation amount corresponding to the standard color brightness of the current level, the embodiment of the present invention corrects the actual grayscale compensation amount corresponding to the standard color brightness of the current level based on the correction formula of the actual grayscale compensation amount according to the actual grayscale compensation amount corresponding to the standard color brightness of the first preset level, the actual grayscale compensation amount corresponding to the standard color brightness of the current level, the correction coefficient, the first preset level and the current level, so that the actual grayscale data after compensation according to the actual grayscale compensation amount is more accurate, which can further improve the accuracy of color brightness when displaying the image to be displayed.

[0194] Optional, Fig.15 is a flow chart of another display control method of a display panel provided by an embodiment of the present invention, such as Fig.15 As shown, the display control method of the display panel includes:

[0195] S811. Obtain the current temperature of the environment in which the display panel is located, image data of the image to be displayed, brightness to be displayed, and current refresh frequency.

[0196] S812: Determine an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel.

[0197] S813: Determine a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed according to the brightness to be displayed.

[0198] S814. Determine, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency.

[0199] S815. Based on the first formula, calculate the actual grayscale compensation amount of the pixel according to the initial grayscale compensation amount, the brightness compensation coefficient and the frequency compensation coefficient of the same pixel.

[0200] S816, obtaining a mapping relationship between brightness and correction coefficient.

[0201] The mapping relationship between brightness and correction coefficient includes the correction coefficient of each color pixel when the display panel presents different display brightness.

[0202] S817. Determine a correction coefficient corresponding to the brightness to be displayed according to the brightness to be displayed and based on a mapping relationship between the brightness and the correction coefficient.

[0203] Specifically, the mapping relationship between brightness and correction coefficient can be a relational expression determined based on experience, or a relational table obtained through a binding point test. Exemplarily, when the mapping relationship between brightness and compensation coefficient is a relational expression, the determined brightness to be displayed can be substituted into the relational expression, so as to determine the correction coefficient corresponding to the brightness to be displayed. If the mapping relationship between brightness and compensation coefficient is a relational table, the brightness to be displayed can be mapped into the table by looking up the table to determine the correction coefficient corresponding to the brightness to be displayed.

[0204] S818. Obtain the current level of the standard color brightness corresponding to the grayscale data to be displayed of the pixel.

[0205] S819: Correct the actual grayscale compensation amount according to the current level and correction coefficient of each pixel.

[0206] S820 , determining actual display grayscale data of the pixel according to the actual grayscale compensation amount and the grayscale data to be displayed.

[0207] S821. Control each pixel to display light according to the actual display grayscale data of each pixel.

[0208] The embodiment of the present invention provides a method that takes into account the differences in brightness compensation coefficients corresponding to different display brightnesses and different levels of standard color brightnesses. The correction coefficient corresponding to the brightness to be displayed is determined through a mapping relationship between brightness and correction coefficient, and the actual grayscale compensation amount is corrected through the correction coefficient, thereby reducing the error in the actual displayed grayscale data caused by the brightness coefficient error, being able to improve the accuracy of the actual displayed grayscale data, and being conducive to improving the accuracy of image display.

[0209] Optional, Fig.16 It is a flow chart of a method for obtaining the mapping relationship between brightness and correction coefficient, such as Fig.16 As shown, the method includes:

[0210] S8161. When the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a standard display brightness, obtain fourth standard grayscale data when the pixels of each color are at a first preset level of standard color brightness, and fifth standard grayscale data when the pixels of each color are at a second preset level of standard color brightness.

[0211] Specifically, because at the same temperature and the same display brightness, the brightness compensation coefficient corresponding to the high-level standard color brightness has an error with the brightness compensation coefficient corresponding to the low-level standard color brightness, which results in an error between the actual grayscale compensation amount corresponding to the high-level standard color brightness and the actual grayscale compensation amount corresponding to the low-level standard color brightness. Accordingly, when the ambient temperature of the display panel is the preset temperature and the display brightness is the standard display brightness, the grayscale data corresponding to the high-level standard color brightness (i.e., the fourth standard grayscale data) and the grayscale data corresponding to the low-level standard color brightness (i.e., the fifth standard grayscale data) of each pixel can be obtained respectively. Among them, the second preset level is less than the first preset level, the first preset level can be 255 levels (high level), and the second preset level can be 2, 5, 6, 8, etc., and one second level or multiple second preset levels can be set according to design requirements. Among them, the process of obtaining the fourth standard grayscale data and the fifth standard grayscale data is similar to the process of obtaining the first standard grayscale data, the second standard grayscale data, and the third standard grayscale data, which will not be repeated here.

[0212] S8162. When the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a test display brightness, obtain fourth test grayscale data when the pixels of each color are at a standard color brightness of a first preset level, and obtain fifth test grayscale data when the pixels of each color are at a standard color brightness of a second preset level.

[0213] Specifically, the temperature is maintained at a preset temperature, and the display brightness of the display panel is adjusted to a test brightness, that is, at the preset temperature and when the display brightness of the display panel is the test brightness, display grayscale data is provided to the pixel, and the display grayscale data is adjusted according to the display brightness of the pixel until the display brightness of the pixel reaches the standard color brightness of the first preset level, and the display grayscale data at this time is used as the fourth test grayscale data, and the display grayscale data of the pixel is adjusted under the same conditions until the display brightness of the pixel reaches the standard color brightness of the second preset level, and the display grayscale data at this time is used as the fifth test grayscale data.

[0214] S8163. Determine a first brightness compensation coefficient of a pixel of the same color at a current test display brightness according to the fourth standard grayscale data and the fourth test grayscale data when the pixel of the same color is at a standard color brightness of a first preset level.

[0215] S8164. Determine a second brightness compensation coefficient of the pixel of the same color at the current test display brightness according to the fifth standard grayscale data and the fifth test grayscale data when the pixel of the same color is at the standard color brightness of the second preset level.

[0216] Specifically, according to the fourth standard grayscale data and the fourth test grayscale data when the pixel of the same color is the standard color brightness of the first preset level, the first brightness compensation coefficient of the pixel of the color at the high-level standard color brightness under the current test display brightness can be determined, and the first brightness compensation coefficient can be the ratio between the fourth test grayscale data and the fourth standard grayscale data. Correspondingly, according to the fifth standard grayscale data and the fifth test grayscale data when the pixel of the same color is the standard color brightness of the second preset level, the second brightness compensation coefficient of the pixel of the color at the low-level standard color brightness under the current test display brightness is determined, and the second brightness compensation coefficient can be the ratio between the fifth test grayscale data and the fifth standard grayscale data. Based on the above principle, the first brightness compensation coefficient of the pixel of each color at the high-level standard color brightness and the second brightness compensation coefficient at the low-level standard color brightness can be determined respectively; wherein, the number of the second brightness compensation coefficients of the pixels of each color can be one or more.

[0217] S8165. Determine a correction coefficient of a pixel of the same color under the current test display brightness according to the first brightness compensation coefficient and the second brightness compensation coefficient of the pixel of the same color.

[0218] Specifically, the correction coefficient may be the ratio of the second brightness compensation coefficient to the first brightness compensation coefficient; or, when multiple fifth test grayscale data corresponding to different second preset levels are obtained, there will be multiple second brightness compensation coefficients, in which case the correction coefficient may be the average value of the ratios of each second brightness compensation coefficient to the first brightness compensation coefficient.

[0219] In another feasible embodiment of the present invention, when there are multiple second brightness compensation coefficients, a ratio that can satisfy the brightness of most levels of standard colors can be selected from the ratios of the multiple second brightness compensation coefficients to the first brightness compensation coefficient as a correction coefficient, so as to ensure the accuracy of the brightness of most levels of standard colors, thereby satisfying the overall display accuracy of the image to be displayed.

[0220] S8166. Determine whether the current number of brightness tests reaches the second preset number of tests; if not, execute S8167; if yes, execute S8168.

[0221] S8167. Adjust the test display brightness according to the second preset rule, and return to execute S8162.

[0222] S8168. Determine the relationship table of correction coefficients of pixels of each color at different test display brightnesses as a brightness-correction coefficient mapping relationship.

[0223] Specifically, after completing the determination of the correction coefficient of each pixel under the current test display brightness, the number of times the correction coefficient is determined can be obtained, that is, the number of times the display brightness is adjusted can be obtained, and it can be used as the current brightness test number to determine whether the current brightness test number reaches the second preset test number. If it is determined that the current brightness test number does not reach the second preset number, the test display brightness is adjusted according to the second preset rule. After adjusting the test display brightness, based on the adjusted test display brightness, the fourth test grayscale data when each pixel presents the first preset level of standard color brightness and the fifth test grayscale data when each pixel presents the second preset level of standard color brightness are obtained again to obtain the correction coefficient corresponding to the pixel of each color under the adjusted test display brightness. This cycle is repeated until it is determined that the brightness test number reaches the second preset test number. Then, the mapping relationship between the correction coefficient of the pixel of each color and the display brightness of the display panel can be determined.

[0224] Exemplarily, Table 4 is a brightness and correction coefficient mapping relationship table, where DBV Band represents the display brightness level, Band x represents the display brightness of the xth level, "DGS_Rx" represents the correction coefficient of the red pixel at the xth level of display brightness, "DGS_Gx" represents the correction coefficient of the green pixel at the xth level of display brightness, and "DGS_Bx" represents the correction coefficient of the blue pixel at the xth level of display brightness.

[0225] Table 4 Brightness and correction coefficient mapping table

[0226] DBV Band DGS_R DGS_G DGS_B Band1 DGS_R1 DGS_G1 DGS_B1 Band2 DGS_R2 DGS_G2 DGS_B2 Band3 DGS_R3 DGS_G3 DGS_B3 Band4 DGS_R4 DGS_G4 DGS_B4 Band5 DGS_R5 DGS_G5 DGS_B5 … Bandx DGS_Rx DGS_Gx DGS_Bx

[0227] Exemplarily, the second preset rule may be a rule for adjusting the test display brightness in a gradient, for example, the test display brightness may be increased or decreased in a test range with a gradient of 100 nit.

[0228] The embodiment of the present invention corrects the actual grayscale compensation amount of the current brightness to be displayed through the correction coefficient, so that the actual grayscale compensation amount corresponding to each pixel is more accurate under different levels of standard color brightness, thereby making the actual grayscale compensation amount of each pixel more accurate, and enabling the display panel to achieve a more accurate display effect. In addition, the correction coefficient corresponding to each pixel at different display brightness under each level of standard color brightness is obtained by binding point testing, which further improves the reliability of the actual grayscale compensation amount and further ensures the accuracy of the image displayed by the display panel.

[0229] Based on the same inventive concept, an embodiment of the present invention provides a display control device for a display panel, which is used to execute the display control method for a display panel provided by any embodiment of the present invention. The display control device for a display panel can be implemented by software and / or hardware. Therefore, the display control device for a display panel provided by an embodiment of the present invention includes the technical features of the display control method for a display panel provided by any embodiment of the present invention, and can achieve the beneficial effects of the display control method for a display panel provided by any embodiment of the present invention. The similarities can be referred to the above description of the display control method for a display panel provided by an embodiment of the present invention, and will not be repeated here.

[0230] refer to Figure 4 The display panel 100 includes a plurality of pixel units 110 arranged in an array, each pixel unit 110 includes a plurality of pixels 111 of different colors, Fig.17 is a schematic diagram of a display control device for a display panel provided by an embodiment of the present invention, and is combined with reference to Figure 4 and Fig.17 The display control device of the display panel includes a data acquisition module 10, which is used to acquire the current temperature of the environment in which the display panel 100 is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency; the image data includes the grayscale data to be displayed corresponding to each pixel 111; the initial compensation amount determination module 20, which is used to determine the initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel 111; the brightness coefficient determination module 30, which is used to determine the brightness compensation coefficient of each pixel 111 corresponding to the brightness to be displayed according to the brightness to be displayed; the frequency coefficient determination module 40, which is used to determine the frequency compensation coefficient of each pixel 111 corresponding to the current refresh frequency according to the current refresh frequency; the actual grayscale determination module 50, which is used to determine the actual display grayscale data of each pixel 111 based on the initial grayscale compensation amount, brightness compensation coefficient, frequency compensation coefficient and grayscale data to be displayed of each pixel 111; the display control module 60, which is used to control each pixel 111 to display light according to the actual display grayscale data of each pixel 111.

[0231] The display control device of the display panel provided by the embodiment of the present invention can make the determined actual display grayscale data not only related to the temperature information of the environment in which the display panel is located, but also related to the display brightness and refresh frequency, so that the compensation of the display grayscale data of each pixel is more accurate, thereby making the determined actual display grayscale data of each pixel more accurate. When each pixel is controlled to display light according to the actual display grayscale data, the color brightness of the image to be displayed can be displayed accurately, effectively improving the display effect of the display panel.

[0232] Based on the same inventive concept, an embodiment of the present invention provides a display device, Fig.18is a schematic diagram of the structure of a display device provided by an embodiment of the present invention, such as Fig.18 As shown, the display device 00 includes a display panel 100 and a driving chip 200; the display panel 100 includes a display area A1 and a non-display area A2 surrounding the display area A1; the display area A1 includes a plurality of pixel units 110 arranged in an array, and each pixel unit 110 includes a plurality of pixels 111 of different colors; the non-display area A2 includes a chip setting area A21; the driving chip 200 is arranged in the chip setting area A21; the driving chip 200 is used to execute the display control method of the display panel provided in any embodiment of the present invention, and control the display panel 100 to display. Therefore, the display device provided in the embodiment of the present invention includes the technical features of the display control method of the display panel provided in any embodiment of the present invention, and can achieve the beneficial effects of the display control method of the display panel provided in any embodiment of the present invention. The similarities can be referred to the above description of the display control method of the display panel provided in the embodiment of the present invention, and will not be repeated here.

[0233] An embodiment of the present invention further provides a computer-readable storage medium, which stores computer instructions. The computer instructions are used to enable a processor to implement the display control method of the display panel provided by any embodiment of the present invention when executed.

[0234] The computer instructions for implementing the method of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to the processor in the driver chip so that the computer instructions, when executed by the processor, enable the functions / operations specified in the flow chart and / or block diagram to be implemented.

[0235] In the context of the present invention, a computer-readable storage medium may be a tangible medium that may contain or store computer instructions for use by or in conjunction with an instruction execution system, device, or equipment. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices, or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. A more specific example of a machine-readable storage medium may include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0236] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0237] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A display control method for a display panel, It is characterized in that The display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of pixels of different colors, and the display control method of the display panel includes: Acquire the current temperature of the environment where the display panel is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency; the image data includes the grayscale data to be displayed corresponding to each of the pixels; Determining an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel; Determining, according to the brightness to be displayed, a brightness compensation coefficient of each of the pixels corresponding to the brightness to be displayed; Determining, according to the current refresh frequency, a frequency compensation coefficient of each of the pixels corresponding to the current refresh frequency; Determining actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed; Controlling each pixel to display and emit light according to actual display grayscale data of each pixel; Wherein, based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed, determining the actual display grayscale data of the pixel includes: Based on the first formula, the actual grayscale compensation amount of the pixel is calculated according to the initial grayscale compensation amount, the brightness compensation coefficient and the frequency compensation coefficient of the same pixel; the first formula is: TGO=DS*FS*Offset; wherein TGO is the actual grayscale compensation amount of the pixel, DS is the brightness compensation coefficient of the pixel, FS is the frequency compensation coefficient of the pixel, and Offset is the initial grayscale compensation amount of the pixel; Acquire a correction coefficient corresponding to the brightness to be displayed and a current level of standard color brightness corresponding to the grayscale data to be displayed of the pixel; Correcting the actual grayscale compensation amount according to the current level of each pixel and the correction coefficient; The actual display grayscale data of the pixel is determined according to the actual grayscale compensation amount and the grayscale data to be displayed.

2. The display control method of the display panel according to claim 1, It is characterized in that Determining the initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel, including: Acquire the temperature and grayscale mapping relationship of the pixel of each color; the temperature and grayscale mapping relationship includes the grayscale compensation amount of the pixel of each color under different ambient temperatures and different levels of standard color brightness; Determining the standard color brightness to be displayed by each pixel according to the grayscale data to be displayed by each pixel; According to the current temperature and the standard color brightness to be displayed by each pixel, based on the mapping relationship between the temperature and the grayscale, the initial grayscale compensation amount of each pixel is correspondingly determined.

3. The display control method of the display panel according to claim 2, It is characterized in that Obtaining the temperature and grayscale mapping relationship of the pixel of each color, including: When the ambient temperature of the display panel is the standard temperature, obtaining first standard grayscale data of the pixels of each color corresponding to different levels of standard color brightness; When the ambient temperature of the display panel is the test temperature, obtaining first test grayscale data of the pixels of each color corresponding to the standard color brightness of different levels; Determine, according to the first standard grayscale data and the first test grayscale data of the pixel of the same color at the standard color brightness at the same level, the grayscale compensation amount of the pixel of the color at the standard color brightness at the current test temperature; Determine whether the current temperature test number reaches a first preset test number; If not, the test temperature is adjusted according to the first preset rule, and the steps of obtaining the first test grayscale data of the one-to-one correspondence between the pixels of each color and the standard color brightness of different levels when the environment of the display panel is the test temperature to determine whether the current temperature test number reaches the first preset test number are executed; If yes, then a relationship table of grayscale compensation amounts corresponding to the pixels of each color and the standard color brightness of different levels under different test temperatures is determined as the temperature-grayscale mapping relationship.

4. The display control method of the display panel according to claim 1, It is characterized in that Determining, according to the brightness to be displayed, a brightness compensation coefficient of each pixel corresponding to the brightness to be displayed, comprising: Acquire a mapping relationship between brightness and compensation coefficient; the mapping relationship between brightness and compensation coefficient includes brightness compensation coefficients of the pixels of each color when the display panel presents different display brightness; According to the brightness to be displayed, based on the mapping relationship between the brightness and the compensation coefficient, a brightness compensation coefficient of each pixel is correspondingly determined.

5. The display control method of the display panel according to claim 4, It is characterized in that Get the mapping relationship between brightness and compensation coefficient, including: When the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a standard display brightness, obtaining second standard grayscale data when the pixels of each color are at a preset level of standard color brightness; When the ambient temperature of the display panel is the preset temperature and the display brightness of the display panel is the test display brightness, obtaining second test grayscale data when the pixels of each color are at the standard color brightness of the preset level; Determine the brightness compensation coefficient of the pixel of the same color at the current test display brightness according to the second standard grayscale data and the second test grayscale data when the pixel of the same color is the standard color brightness of the same preset level; Determine whether the current brightness test number reaches a second preset test number; If not, the test display brightness is adjusted according to the second preset rule, and the process returns to the steps of obtaining the second test grayscale data when the pixel of each color is the standard color brightness of the preset level when the ambient temperature of the display panel is the preset temperature and the display brightness of the display panel is the test display brightness, to determining whether the current number of brightness tests reaches the second preset number of tests; If yes, then a relationship table of brightness compensation coefficients of the pixels of each color at different test display brightnesses is determined as the brightness-compensation coefficient mapping relationship.

6. The display control method of the display panel according to claim 1, It is characterized in that Determining, according to the current refresh frequency, a frequency compensation coefficient of each pixel corresponding to the current refresh frequency, comprising: Acquire a mapping relationship between frequency and compensation coefficient; the mapping relationship between frequency and compensation coefficient includes frequency compensation coefficients of the pixels of each color when the display panel has different refresh frequencies; According to the current refresh frequency, based on the mapping relationship between the frequency and the compensation coefficient, the frequency compensation coefficient of each pixel is correspondingly determined.

7. The display control method of the display panel according to claim 6, It is characterized in that Obtain the mapping relationship between frequency and compensation coefficient, including: When the ambient temperature of the display panel is a preset temperature and the refresh frequency of the display panel is a standard refresh frequency, obtaining third standard grayscale data when the pixels of each color are at a preset level of standard color brightness; When the ambient temperature of the display panel is the preset temperature and the refresh frequency of the display panel is the test refresh frequency, obtaining third test grayscale data when the pixels of each color are at the standard color brightness of the preset level; Determine, according to the third standard grayscale data and the third test grayscale data when the pixels of the same color are of the same preset level of standard color brightness, a frequency compensation coefficient of the pixels of the same color at the current test refresh frequency; Determine whether the current frequency test number reaches a third preset test number; If not, the test refresh frequency is adjusted according to the third preset rule, and the process returns to the steps of obtaining the third test grayscale data when the pixels of each color are at the standard color brightness of the preset level when the ambient temperature of the display panel is the preset temperature and the refresh frequency of the display panel is the test refresh frequency, to determining whether the current frequency test number reaches the third preset test number; If yes, then a relationship table of frequency compensation coefficients of the pixels of each color at different test refresh frequencies is determined as the mapping relationship between the frequency and the compensation coefficient.

8. The display control method of the display panel according to claim 1, It is characterized in that Correcting the actual grayscale compensation amount according to the current level of each pixel and the correction coefficient, including: Obtaining an initial grayscale compensation amount offsetm corresponding to a standard color brightness of the pixel at a first preset level at the current temperature; Calculate the actual grayscale compensation amount TGOm when the pixel is the standard color brightness of the first preset level according to the initial grayscale compensation amount offsetm corresponding to the standard color brightness of the first preset level, the brightness compensation coefficient and the frequency compensation coefficient; wherein TGOm=DS*FS*offsetm; According to the current level of the pixel, the actual grayscale compensation amount and the correction coefficient, as well as the actual grayscale compensation amount TGOm corresponding to the standard color brightness of the pixel at the first preset level, the corrected actual grayscale compensation amount TGO′ is calculated; TGO′=TGO+(TGOm-TGO)*(n / m)*DGS; wherein n is the current level, m is the first preset level, and DSG is the correction coefficient.

9. The display control method of the display panel according to claim 1, It is characterized in that Obtaining a correction coefficient corresponding to the brightness to be displayed, including: Acquire a mapping relationship between brightness and correction coefficient; the mapping relationship between brightness and correction coefficient includes correction coefficients when the pixels of each color present different display brightnesses on the display panel; According to the brightness to be displayed, based on the mapping relationship between the brightness and the correction coefficient, a correction coefficient corresponding to the brightness to be displayed is determined.

10. The display control method of the display panel according to claim 9, It is characterized in that Obtaining the mapping relationship between the brightness and the correction coefficient includes: When the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a standard display brightness, fourth standard grayscale data when the pixels of each color are at a first preset level of standard color brightness and fifth standard grayscale data when the pixels of each color are at a second preset level of standard color brightness are obtained; When the ambient temperature of the display panel is a preset temperature and the display brightness of the display panel is a test display brightness, fourth test grayscale data when the pixels of each color are at the standard color brightness of the first preset level, and fifth test grayscale data when the pixels of each color are at the standard color brightness of the second preset level are obtained; the second preset level is less than the first preset level; Determine a first brightness compensation coefficient of the pixel of the same color at the current test display brightness according to the fourth standard grayscale data and the fourth test grayscale data when the pixel of the same color is at the standard color brightness of the first preset level; Determine a second brightness compensation coefficient of the pixel of the same color at the current test display brightness according to the fifth standard grayscale data and the fifth test grayscale data when the pixel of the same color is at the standard color brightness of the second preset level; Determining, according to the first brightness compensation coefficient and the second brightness compensation coefficient of the pixel of the same color, a correction coefficient of the pixel of the color at the current test display brightness; Determine whether the current brightness test number reaches a second preset test number; If not, the test display brightness is adjusted according to the second preset rule, and the process returns to the steps of obtaining the fourth test grayscale data when the pixels of each color are at the standard color brightness of the first preset level, and the fifth test grayscale data when the pixels of each color are at the standard color brightness of the second preset level when the ambient temperature of the display panel is the preset temperature and the display brightness of the display panel is the test display brightness, to determine whether the current number of brightness tests reaches the second preset number of tests; If yes, then a relationship table of correction coefficients of the pixels of each color at different test display brightnesses is determined as the brightness-correction coefficient mapping relationship.

11. A display control device for a display panel, It is characterized in that The display panel includes a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of pixels of different colors, and the display control device of the display panel includes: A data acquisition module, used to acquire the current temperature of the environment in which the display panel is located, the image data of the image to be displayed, the brightness to be displayed and the current refresh frequency; the image data includes the grayscale data to be displayed corresponding to each pixel; An initial compensation amount determination module, used to determine an initial grayscale compensation amount of each pixel at the current temperature according to the grayscale data to be displayed of each pixel; A brightness coefficient determination module, used to determine the brightness compensation coefficient of each pixel corresponding to the brightness to be displayed according to the brightness to be displayed; A frequency coefficient determination module, used to determine, according to the current refresh frequency, a frequency compensation coefficient of each of the pixels corresponding to the current refresh frequency; an actual grayscale determination module, configured to determine actual display grayscale data of each pixel based on the initial grayscale compensation amount of each pixel, the brightness compensation coefficient, the frequency compensation coefficient and the grayscale data to be displayed; A display control module, used for controlling each pixel to display light according to actual display grayscale data of each pixel; The actual grayscale determination module is specifically used for: Based on the first formula, the actual grayscale compensation amount of the pixel is calculated according to the initial grayscale compensation amount, the brightness compensation coefficient and the frequency compensation coefficient of the same pixel; the first formula is: TGO=DS*FS*Offset; wherein TGO is the actual grayscale compensation amount of the pixel, DS is the brightness compensation coefficient of the pixel, FS is the frequency compensation coefficient of the pixel, and Offset is the initial grayscale compensation amount of the pixel; Acquire a correction coefficient corresponding to the brightness to be displayed and a current level of standard color brightness corresponding to the grayscale data to be displayed of the pixel; Correcting the actual grayscale compensation amount according to the current level of each pixel and the correction coefficient; The actual display grayscale data of the pixel is determined according to the actual grayscale compensation amount and the grayscale data to be displayed.

12. A display device, It is characterized in that include: Display panel and driver chip; The display panel includes a display area and a non-display area surrounding the display area; the display area includes a plurality of pixel units arranged in an array, each of the pixel units includes a plurality of pixels of different colors; the non-display area includes a chip setting area; the driving chip is set in the chip setting area; The driving chip is used to execute the display control method of the display panel according to any one of claims 1 to 10, and control the display panel to perform display.

13. A computer-readable storage medium, It is characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the display control method of a display panel according to any one of claims 1 to 10 when executed.

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