Display control method and device, display device, electronic device and storage medium

Abstract

The present disclosure provides a display control method and apparatus, a display device, an electronic device, and a storage medium. The display control method includes: determining the brightness value of the light-emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed according to preset grayscale-brightness relationship information, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values; determining the driving voltage corresponding to the brightness value of each light-emitting element according to preset brightness-voltage relationship information, so that the display panel can display based on the driving voltage of each light-emitting element, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages. The technical solution disclosed in the present disclosure can save the Gamma debugging process and reduce the workload.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display control method and apparatus, a display device, an electronic device, and a storage medium. Background Art

[0002] The brightness perceived by the human eye is not in a linear relationship with the actual luminous brightness of the display panel. In a low-brightness environment, the human eye is more sensitive to changes in brightness, while in a high-brightness environment it is the opposite. For example, the light output brightness of the light-emitting device is increased by 2 times, but the brightness change perceived by the human eye is not 2 times the original brightness. This characteristic of the human eye is called the Gamma characteristic. Due to the nonlinear perception of brightness by the human eye, if we need to obtain a uniformly changing brightness experience, the brightness displayed by the display panel needs to change non-uniformly to adapt to the Gamma characteristics of the human eye. The nonlinear parameters of the brightness and grayscale of the display panel can be called Gamma parameters, and the curve drawn according to the Gamma parameters is called the Gamma curve. The Gamma parameters describe the nonlinear relationship between brightness and grayscale, that is, the nonlinear relationship between brightness and data line input voltage. Therefore, if the brightness of the display panel and the data line input voltage do not conform to the above-mentioned Gamma curve, the display panel needs to be Gamma corrected. Specifically, the display device can be gamma-adjusted before it leaves the factory to determine the required driving voltage for each grayscale value of the display device under each gamma band. Summary of the invention

[0003] The present disclosure provides a display control method and apparatus, a display device, an electronic device, and a storage medium.

[0004] According to a first aspect of the present disclosure, a display control method includes:

[0005] Determine the brightness value of the light-emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed according to preset grayscale-brightness relationship information, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values;

[0006] According to preset brightness-voltage relationship information, the driving voltage corresponding to the brightness value of each light-emitting element is determined so that the display panel can display based on the driving voltage of each light-emitting element, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages.

[0007] In one embodiment, the grayscale-brightness relationship information includes a grayscale-brightness relationship equation, and the grayscale-brightness relationship equation is:

[0008] Y=a*X3+b*X2+c*X+d, wherein Y is the brightness value, X is the grayscale value, a is the first coefficient, b is the second coefficient, c is the third coefficient, and d is the brightness compensation coefficient.

[0009] In one embodiment, the first coefficient, the second coefficient, the third coefficient and the brightness compensation coefficient are obtained by fitting a cubic polynomial function to the grayscale-brightness data of the light-emitting element.

[0010] In one embodiment, the grayscale-brightness relationship information includes a grayscale-brightness relationship table, in which a plurality of grayscale values ​​and the brightness value of the light-emitting element corresponding to each grayscale value are recorded.

[0011] In one embodiment, the brightness-voltage relationship information includes a brightness-voltage relationship equation, and the brightness-voltage relationship equation is:

[0012] Z=m*ln(Y)+n, wherein Z is the driving voltage, Y is the brightness value, m is the fourth coefficient, and n is the voltage compensation coefficient.

[0013] In one embodiment, the fourth coefficient and the voltage compensation coefficient are obtained by performing logarithmic function fitting on the brightness-voltage data of the light-emitting element.

[0014] In one embodiment,

[0015] m is greater than -1 and less than 0, and / or n is greater than 1.

[0016] In one embodiment, the brightness-voltage relationship information includes a brightness-voltage relationship table, in which a plurality of brightness values ​​and a driving voltage of a light-emitting element corresponding to each brightness value are recorded.

[0017] In one embodiment, the light emitting element comprises a light emitting diode.

[0018] According to a second aspect of the present disclosure, there is provided a display control device, comprising:

[0019] A brightness determination module, used to determine the brightness value of the light-emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed according to preset grayscale-brightness relationship information, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values;

[0020] A voltage determination module is used to determine the driving voltage corresponding to the brightness value of each light-emitting element according to preset brightness-voltage relationship information, so that the display panel can display based on the driving voltage of each light-emitting element, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages.

[0021] According to a third aspect of the present disclosure, a display device is provided, comprising the display control apparatus in the embodiment of the present disclosure, and further comprising a display panel.

[0022] According to a fourth aspect of the present disclosure, there is provided an electronic device, including:

[0023] at least one processor; and

[0024] a memory communicatively connected to at least one processor; wherein,

[0025] The memory stores instructions that can be executed by at least one processor. The instructions are executed by at least one processor to enable the at least one processor to perform any method of the present disclosure.

[0026] According to a fifth aspect of the present disclosure, a non-transitory computer-readable storage medium storing computer instructions is provided, wherein the computer instructions are used to enable a computer to execute any method of the present disclosure.

[0027] The technical solution disclosed in the present invention no longer requires gamma debugging of the product, thus avoiding the tedious and complicated gamma debugging process, reducing the workload and improving the product development speed.

[0028] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings are used to better understand the present solution and do not constitute a limitation of the present disclosure.

[0030] Figure 1 A schematic diagram showing a control method in an embodiment of the present disclosure;

[0031] Figure 2 shows the grayscale-brightness curves of the red LED, the green LED and the blue LED obtained by fitting in one embodiment;

[0032] Figure 3A The figure shows the brightness-voltage data and relationship curve of the red LED in one embodiment;

[0033] Figure 3B The figure shows the brightness-voltage data and relationship curve of a green LED in one embodiment;

[0034] Figure 3C The figure shows the brightness-voltage data and relationship curve of a blue LED in one embodiment;

[0035] Figure 4is a structural block diagram of a display control device in one embodiment of the present disclosure;

[0036] Figure 5 A schematic diagram of a process for determining an LED driving voltage in an embodiment of the present disclosure;

[0037] Fig. 6A A schematic diagram of a process for determining a red LED driving voltage in an embodiment of the present disclosure;

[0038] Figure 6B A schematic diagram of a process for determining a green LED driving voltage in an embodiment of the present disclosure;

[0039] Figure 6C Schematic diagram of a process for determining a blue LED driving voltage in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0040] The following is a description of exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, including various details of the embodiments of the present disclosure to facilitate understanding, which should be considered as merely exemplary. Therefore, it should be recognized by those of ordinary skill in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present disclosure. Similarly, for the sake of clarity and conciseness, descriptions of well-known functions and structures are omitted in the following description.

[0041] The display panel includes multiple light-emitting diodes (LEDs), and three different light-emitting diodes (LEDs) of different colors constitute a pixel. Due to the material, manufacturing process, production batch and other reasons, the photoelectric performance of each light-emitting diode (LED) is inevitably different, mainly manifested in the large difference in the brightness of light-emitting diodes (LEDs) of different colors under the same current. Therefore, display panel products including LEDs require tedious and complex gamma debugging, which prolongs the product development cycle.

[0042] Figure 1 Schematic diagram of a display control method in an embodiment of the present disclosure. The present disclosure provides a display control method, including steps S11 and S12.

[0043] In step S11, the brightness value of the light-emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed is determined according to preset grayscale-brightness relationship information, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values.

[0044] In step S12, the driving voltage corresponding to the brightness value of each light-emitting element is determined according to preset brightness-voltage relationship information, so that the display panel can display based on the driving voltage of each light-emitting element, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages.

[0045] It is understandable that a pixel point in the image to be displayed may include multiple sub-pixels, for example, a pixel point includes three sub-pixels of R, G, and B. The three sub-pixels of R, G, and B correspond to the three light-emitting elements of R, G, and B, respectively.

[0046] The grayscale-brightness relationship information includes multiple grayscale values ​​and multiple brightness values, and there is a mapping relationship between each grayscale value and each brightness value. For a light-emitting element of a specific color, a grayscale value corresponds to a brightness value. The grayscale of a pixel in a displayed image can be presented by the brightness of the light-emitting element. For example, a pixel may include three light-emitting elements of R, G, and B, and the grayscale of the pixel may be presented by the brightness of the R, G, and B light-emitting elements.

[0047] The brightness-voltage relationship information includes multiple brightness values ​​and multiple driving voltages. There is a mapping relationship between each brightness value and each driving voltage. For a light-emitting element of a specific color, one brightness value corresponds to one driving voltage. By driving the light-emitting element with a corresponding driving voltage, the light-emitting element can generate a corresponding brightness.

[0048] The display control method disclosed in the present invention determines the brightness value of the light-emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed according to preset grayscale-brightness relationship information; determines the driving voltage corresponding to the brightness value of each light-emitting element according to preset brightness-voltage relationship information, so that when the corresponding light-emitting element in the display panel is driven to emit light by the driving voltage, the light-emitting element can generate a corresponding brightness value, and the brightness value of each sub-pixel can be combined into a corresponding pixel point in the display image, and then the display panel can display the display image.

[0049] By adopting the display control method disclosed in the present invention, the brightness displayed by the display panel meets the visual perception of the human eye, and it is no longer necessary to perform Gamma debugging on the product, thus avoiding the tedious and complicated Gamma debugging process, reducing the workload, and improving the speed of product development. In addition, the technical solution of the embodiment of the present invention can be compatible with more different processes and different packages, improve the compatibility of display products, and speed up the response speed of product development.

[0050] Exemplarily, the light emitting element may include an inorganic light emitting diode (LED), specifically, a sub-millimeter light emitting diode (Mini Light Emitting Diode, Mini LED for short), or a micro light emitting diode (Micro Light Emitting Diode, Micro LED for short).

[0051] Exemplarily, the LED may include a red LED. The preset grayscale-brightness relationship information may include grayscale-brightness relationship information of the red LED. The preset brightness-voltage relationship information may include brightness-voltage relationship information of the red LED. For the red LED, the brightness value of the red LED may be determined according to the grayscale-brightness relationship information of the red LED; and the driving voltage corresponding to the brightness value of the red LED may be determined according to the brightness-voltage relationship information of the red LED.

[0052] Exemplarily, the LED may include a green LED. The preset grayscale-brightness relationship information may include the grayscale-brightness relationship information of the green LED. The preset brightness-voltage relationship information may include the brightness-voltage relationship information of the green LED. For the green LED, the brightness value of the green LED may be determined according to the grayscale-brightness relationship information of the green LED; and the driving voltage corresponding to the brightness value of the green LED may be determined according to the brightness-voltage relationship information of the green LED.

[0053] Exemplarily, the LED may include a blue LED. The preset grayscale-brightness relationship information may include grayscale-brightness relationship information of the blue LED. The preset brightness-voltage relationship information may include brightness-voltage relationship information of the blue LED. For the blue LED, the brightness value of the blue LED may be determined according to the grayscale-brightness relationship information of the blue LED; and the driving voltage corresponding to the brightness value of the blue LED may be determined according to the brightness-voltage relationship information of the blue LED.

[0054] Exemplarily, the grayscale-brightness relationship information can be obtained based on the grayscale-brightness data of the light-emitting element, and the grayscale-brightness data of the light-emitting element can be obtained from the light-emitting element provider, or the light-emitting element can be tested or calculated to obtain the grayscale-brightness data of the light-emitting element. Exemplarily, the brightness-voltage relationship information can be obtained based on the brightness-voltage data of the light-emitting element, and the light-emitting element can be tested to obtain the brightness-voltage data of the light-emitting element. Thus, when the light-emitting element is driven by the driving voltage determined by the technical solution of the present invention, the light-emitting brightness of the light-emitting element can reflect the grayscale of the corresponding pixel point in the displayed image, so that the image displayed by the display panel conforms to the visual perception of the human eye, and there is no need to perform Gamma debugging on the display device.

[0055] The grayscale-brightness data of the light-emitting element can be obtained by calculation, and the brightness value of the light-emitting element corresponding to each grayscale in the grayscale of 0 to 255 can be obtained, thereby obtaining the grayscale-brightness data of the light-emitting element. For example, the Gamma formula can be used to calculate the brightness values ​​of R, G, and B corresponding to the white screen in the grayscale of 0 to 255.

[0056] Due to differences in manufacturing process, packaging, performance, etc., light-emitting elements of different colors have large differences in luminous brightness under the same current. Therefore, it is necessary to obtain grayscale-brightness data of light-emitting elements of each color respectively. When obtaining brightness-voltage data of a light-emitting element of a specific color through a test method, the light-emitting element can be placed on a test board, and a driving voltage can be applied to the light-emitting element in a stepwise manner, and the driving voltage corresponding to the specific brightness can be recorded to obtain the brightness-voltage data of the light-emitting element.

[0057] The grayscale-brightness data of the light-emitting element includes each grayscale of the light-emitting element and the brightness value corresponding to each grayscale. The number of grayscales can be 0 to 255. The grayscale-brightness data of the light-emitting element can be fitted to obtain the grayscale-brightness relationship of the light-emitting element. Exemplarily, the grayscale-brightness data of the light-emitting element can be fitted in the form of a cubic polynomial function, and the obtained grayscale-brightness relationship of the light-emitting element can be expressed as:

[0058] Y=a*X 3 +b*X 2 +c*X+d, where X is the grayscale value of the light-emitting element of a specific color, Y is the brightness value that the light-emitting element of a specific color needs to present at the corresponding grayscale value, a is the first coefficient, b is the second coefficient, c is the third coefficient, and d is the brightness compensation coefficient.

[0059] In one embodiment, the preset grayscale-brightness relationship information may include a grayscale-brightness relationship equation.

[0060] By fitting a cubic polynomial function to the grayscale-brightness data of the light-emitting element, a definite grayscale-brightness relationship of the light-emitting element can be obtained, and the first coefficient a, the second coefficient b, the third coefficient c and the brightness compensation coefficient d in the grayscale-brightness relationship can be determined.

[0061] Exemplarily, the first coefficient a may be greater than 0 and less than 1. The second coefficient b may be greater than 0 and less than 1. The third coefficient c may be less than 0. The brightness compensation coefficient d may be greater than 0.

[0062] Figure 2 The grayscale-brightness curves of the red LED, green LED and blue LED respectively obtained by fitting in one embodiment are shown, wherein the horizontal axis is grayscale, the vertical axis is brightness, and the unit of brightness is nit. The red LED is R-LED, the green LED is G-LED, and the blue LED is B-LED. Figure 2The grayscale-brightness data used in the specification is the brightness value corresponding to the grayscale of 0-255 for the three color LEDs of R, G, and B under the specifications of Gamma2.2, maximum grayscale of 255, and maximum brightness of the standard white screen of 1000nit. For example, when the white screen is 150 grayscale, through Figure 2 Curves ①, ②, and ③ in the figure can respectively determine the brightness values ​​of G-LED, R-LED, and B-LED at 150 grayscale.

[0063] It should be noted that under the conditions of Gamma 2.2 and maximum grayscale of 255, Figure 2 According to the grayscale values ​​of red LED, green LED and blue LED, the brightness of red LED, green LED and blue LED can be obtained to present a specific color image. For example, when the grayscales of G-LED, R-LED and B-LED are 200, 150 and 120 respectively, then according to Figure 2 The brightness value of the G-LED at grayscale 200, the brightness value of the R-LED at grayscale 150, and the brightness value of the B-LED at grayscale 120 are obtained.

[0064] Figure 2 The goodness of fit of each curve is R 2 The values ​​are all above 0.9. 2 Refers to the goodness of fit, which is the accuracy calculation of the fitting degree of the regression curve to the observed value. 2 The maximum value is 1. The closer it is to 1, the better the regression curve fits the observed value.

[0065] Exemplarily, a cubic polynomial function may be used to perform data fitting on the grayscale-brightness data of a light-emitting element of a specific color to obtain a grayscale-brightness relationship equation of the light-emitting element of the specific color.

[0066] In the grayscale-brightness relationship of the red LED obtained, a=6*10 -6 , b=0.008, c=-0.1121, d=1.0176, therefore, Figure 2 In the figure, the grayscale-brightness relationship of the red LED is:

[0067] Y R =(6*10 -6 )*X R 3 +0.008*X R 2 -0.1121*X R +1.0176.

[0068] Figure 2Curve ② in the figure is drawn based on the grayscale-brightness relationship of the red LED.

[0069] In the grayscale-brightness relationship of the green LED obtained, a=3*10 -6 , b=0.0034, c=-0.0475, d=0.4312, therefore, Figure 2 In the figure, the grayscale-brightness relationship of the green LED is:

[0070] Y G =(3*10 -6 )*X G 3 +0.0034* X G 2 -0.0475* X G +0.4312.

[0071] Figure 2 Curve ① in FIG. 1 is drawn based on the grayscale-brightness relationship of the green LED.

[0072] In the grayscale-brightness relationship of the blue LED obtained, a=2*10 -6 , b=0.0022, c=-0.0304, d=0.276, therefore, Figure 2 In the figure, the grayscale-brightness relationship of the blue LED is:

[0073] Y B =(2*10 -6 )*X B 3 +0.0022* X B 2 -0.0304* X B +0.276.

[0074] Figure 2 Curve ③ in FIG. 1 is drawn based on the grayscale-brightness relationship of the blue LED.

[0075] It should be noted that, in other embodiments, other types of functions may be used to fit the grayscale-brightness data of a specific color light-emitting element. For example, a quartic polynomial function or an exponential function may be used to fit the grayscale-brightness data. As long as the goodness of fit R 2 Any value above 0.9 is acceptable.

[0076] In one embodiment, the grayscale-brightness relationship information may include a plurality of grayscale values ​​and a brightness value of a light emitting element corresponding to each grayscale value.

[0077] Exemplarily, the grayscale-brightness relationship information may include a grayscale-brightness relationship table. The grayscale-brightness relationship table may record grayscale-brightness data, and the grayscale-brightness relationship table may record multiple grayscale values ​​and brightness values ​​of light-emitting elements corresponding to each grayscale value.

[0078] Exemplarily, according to the preset grayscale-brightness relationship information, determining the brightness value of the color light emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed may include: determining the brightness value of the color light emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed by referring to the grayscale-brightness relationship table. Thus, according to the grayscale value of each sub-pixel in each pixel point in the image to be displayed, by referring to the grayscale-brightness relationship table, the brightness value of the corresponding color light emitting element can be determined.

[0079] The brightness-voltage data of the light-emitting element includes each brightness value of the light-emitting element and a voltage value corresponding to each brightness value. The brightness-voltage data of the light-emitting element can be fitted to obtain a brightness-voltage relationship of the light-emitting element. Exemplarily, a logarithmic function can be used to fit the brightness-voltage data of the light-emitting element, and the brightness-voltage relationship of the light-emitting element can be expressed as:

[0080] Z=m*ln(Y)+n, where Y is the brightness value of the specific color light emitting element, Z is the driving voltage required for the specific color light emitting element to emit the corresponding brightness, m is the fourth coefficient, and n is the voltage compensation coefficient. It should be noted that ln is a natural logarithm.

[0081] In one embodiment, the preset brightness-voltage relationship information may include a brightness-voltage relationship equation.

[0082] By fitting the brightness-voltage data of the light-emitting element, a definite brightness-voltage relationship equation of the light-emitting element can be obtained, and the fourth coefficient m and the voltage compensation coefficient n in the brightness-voltage relationship equation can be determined.

[0083] Exemplarily, the fourth coefficient m may be greater than −1 and less than 0. The voltage compensation coefficient n may be greater than 1.

[0084] Exemplarily, a logarithmic function may be used to fit the brightness-voltage data of a light-emitting element of a specific color to obtain a brightness-voltage relationship of the light-emitting element of the specific color.

[0085] Figure 3AThe brightness-voltage data and relationship curve of the red LED in one embodiment are shown, wherein the horizontal axis is brightness, in units of nit, and the vertical axis is voltage, in units of V. Each discrete point is the brightness-voltage data obtained by actual measurement of the red LED. The brightness-voltage measured data of the red LED are fitted, and in the brightness-voltage relationship of the red LED obtained, m=-0.442, n=4.234. Therefore, after fitting the brightness-voltage data of the red LED, the brightness-voltage relationship of the red LED is obtained as follows:

[0086] Z R =-0.442*ln(Y R )+4.234

[0087] Figure 3A The curve drawn according to the above fitting relationship is shown in Figure 2. The goodness of fit R 2 =0.9664.

[0088] Figure 3B The brightness-voltage data and relationship curve of a green LED in an embodiment are shown, wherein the horizontal axis is brightness, in units of nit, and the vertical axis is voltage, in units of V. The brightness-voltage data is the data obtained by actually measuring the green LED. The brightness-voltage data of the green LED is fitted, and in the brightness-voltage relationship of the green LED obtained, m=-0.172, n=5.0285. Therefore, after fitting the brightness-voltage data of the green LED, the brightness-voltage relationship of the green LED is obtained as follows:

[0089] Z G =-0.172*ln(Y G )+ 5.0285

[0090] Figure 3B The curve drawn according to the above fitting relationship is shown in Figure 2. The goodness of fit R 2 =0.9374.

[0091] Figure 3C The brightness-voltage data and relationship curve of a blue LED in an embodiment are shown, wherein the horizontal axis is brightness in nit and the vertical axis is voltage in V. The brightness-voltage data is the data obtained by actually measuring the blue LED. The brightness-voltage data of the blue LED is fitted, and in the brightness-voltage relationship of the blue LED, m=-0.237 and n=4.7682 are obtained. Therefore, after fitting the brightness-voltage data of the blue LED, the brightness-voltage relationship of the blue LED is obtained as follows:

[0092] Z B =-0.237*ln(YB )+ 4.7682

[0093] Figure 3C The curve drawn according to the above fitting relationship is shown in Figure 2. The goodness of fit R 2 =0.9609.

[0094] It should be noted that, in other embodiments, other types of function forms may be used to fit the brightness-voltage data of a specific color light-emitting element. For example, a logarithmic function or exponential function of another base may be used to fit the brightness-voltage data. As long as the goodness of fit R 2 Any value above 0.9 is acceptable.

[0095] In one embodiment, the brightness-voltage relationship information may include a plurality of brightness values ​​and a driving voltage of a light emitting element corresponding to each brightness value.

[0096] Exemplarily, the brightness-voltage relationship information includes a brightness-voltage relationship table, in which a plurality of brightness values ​​and a driving voltage of a light-emitting element corresponding to each brightness value are recorded.

[0097] Exemplarily, determining the driving voltage corresponding to the brightness value of each light-emitting element according to the preset brightness-voltage relationship information may include: determining the driving voltage corresponding to the brightness value of the light-emitting element through a brightness-voltage relationship table. Thus, when the light-emitting element is driven to emit light by the driving voltage, the brightness of the light generated by the light-emitting element may correspond to the grayscale value of each pixel in the image to be displayed.

[0098] Figure 4 FIG. 4 is a structural block diagram of a display control device in an embodiment of the present disclosure. In one embodiment, the display control device may include a brightness determination module 41 and a voltage determination module 42 .

[0099] The brightness determination module 41 is used to determine the brightness value of the light-emitting element corresponding to the grayscale value of each sub-pixel in each pixel point in the image to be displayed according to preset grayscale-brightness relationship information, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values.

[0100] The voltage determination module 42 is used to determine the driving voltage corresponding to the brightness value of each light-emitting element according to preset brightness-voltage relationship information, so that the display panel can display based on the driving voltage of each light-emitting element, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages.

[0101] Exemplarily, after the grayscale-brightness relationship information is obtained according to the fitting method, the grayscale-brightness relationship information can be stored in the brightness determination module 41. For example, the grayscale-brightness relationship equation can be stored in the brightness determination module 41. The input of the brightness determination module 41 is the grayscale value, and the output is the brightness value.

[0102] The grayscale-brightness relationship includes multiplication and addition operations. Multiplication can be implemented using a multiplier. There are two types of multiplication operations. The first type is indefinite multiplication. For example, X 3 , X 2 The second is the multiplication of a constant and a non-constant, such as c*X, where c is a fixed value. X is the grayscale value, which is the input value of the brightness determination module 41. X can be 0-255, and the grayscale value can be represented by an 8-bit binary number.

[0103] Addition operations can be implemented using adders.

[0104] Exemplarily, after the brightness-voltage relationship information is obtained according to the fitting method, the brightness-voltage relationship information can be stored in the voltage determination module 42. For example, the brightness-voltage relationship equation can be stored in the voltage determination module 42. The input of the voltage determination module 42 is the brightness value, and the output is the voltage value.

[0105] The brightness-voltage relationship is composed of multiplication, addition and logarithmic functions, among which multiplication and addition can be implemented by multipliers and adders respectively. Since the logarithmic function is difficult to display directly in hardware, it can be implemented by a lookup table, that is, the value of the independent variable in the logarithmic function and the logarithmic value corresponding to the value of the independent variable are all calculated and saved in a module that can realize storage (such as ROM), and then read from the ROM according to the value of the input independent variable.

[0106] Figure 5 FIG. 1 is a schematic diagram of a process for determining an LED driving voltage in an embodiment of the present disclosure. Figure 5 As shown, the grayscale value X of each sub-pixel in each pixel point in the image to be displayed is input into the brightness determination module 41, and the brightness determination module 41 determines the brightness value Y of the corresponding LED according to the preset grayscale-brightness relationship information, such as the grayscale-brightness relationship formula of the LED; the brightness value Y is input into the voltage determination module 42, and the voltage determination module 42 determines the driving voltage value Z of the corresponding LED according to the preset brightness-voltage relationship information, such as the brightness-voltage relationship formula. The display panel drives the corresponding LED based on the driving voltage value Z to display.

[0107] Fig. 6A FIG. 1 is a schematic diagram of a process for determining a red LED driving voltage in an embodiment of the present disclosure. Fig. 6A As shown, the grayscale value X of the red sub-pixel in the image to be displayedR The input brightness determination module 41 determines the brightness value Y of the corresponding R-LED according to the preset grayscale-brightness relationship information of the R-LED, such as the grayscale-brightness relationship formula of the R-LED. R ; Brightness value Y R In the input voltage determination module 42, the voltage determination module 42 determines the driving voltage value Z corresponding to the R-LED according to the preset R-LED brightness-voltage relationship information, such as the R-LED brightness-voltage relationship formula. R The display panel is based on the driving voltage value Z R Drive the corresponding R-LED for display.

[0108] Figure 6B FIG. 1 is a schematic diagram of a process for determining a green LED driving voltage in an embodiment of the present disclosure. Figure 6B As shown, the grayscale value X of the green sub-pixel in the image to be displayed G The brightness determination module 41 is inputted into the brightness determination module 41. The brightness determination module 41 determines the brightness value Y corresponding to the G-LED according to the preset grayscale-brightness relationship information of the G-LED, such as the grayscale-brightness relationship formula of the G-LED. G ; Brightness value Y G In the input voltage determination module 42, the voltage determination module 42 determines the driving voltage value Z corresponding to the G-LED according to the preset G-LED brightness-voltage relationship information, such as the G-LED brightness-voltage relationship formula. G The display panel is based on the driving voltage value Z G Drive the corresponding G-LED for display.

[0109] Figure 6C FIG. 1 is a schematic diagram of a process for determining a blue LED driving voltage in an embodiment of the present disclosure. Figure 6C As shown, the grayscale value X of the blue sub-pixel in the image to be displayed B The input brightness determination module 41 determines the brightness value Y of the corresponding B-LED according to the preset grayscale-brightness relationship information of the B-LED, such as the grayscale-brightness relationship formula of the B-LED. B ; Brightness value Y B In the input voltage determination module 42, the voltage determination module 42 determines the driving voltage value Z corresponding to the B-LED according to the preset B-LED brightness-voltage relationship information, such as the B-LED brightness-voltage relationship formula. B The display panel is based on the driving voltage value Z B Drive the corresponding B-LED for display.

[0110] The embodiment of the present disclosure also provides a display device, which may include the display control device in the embodiment of the present disclosure, and may also include a display panel. Exemplarily, the display panel may be an LED display panel. The display panel may also be other types of display panels, such as an organic light emitting diode (OLED) display panel, a quantum dot-organic light emitting diode (QLED) display panel, etc.

[0111] The display device can be: a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function.

[0112] After replacing the light-emitting element, the display device of the embodiment of the present disclosure can make the display effect of the display device conform to the visual perception of the human eye by performing data fitting on the brightness-voltage data obtained from the test and updating the information to the voltage determination module. This eliminates the need for tedious and complicated Gamma debugging, reduces workload, and improves product development speed.

[0113] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device and a readable storage medium.

[0114] The electronic device may include: at least one processor; and a memory connected to the at least one processor in communication, wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the display control method in the embodiment of the present disclosure.

[0115] The readable storage medium may be a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the display control method in the embodiment of the present disclosure.

[0116] Various implementations of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0117] The program code for implementing the method of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device, so that the program code, when executed by the processor or controller, enables the functions / operations specified in the flow chart and / or block diagram to be implemented. The program code may be executed entirely on the machine, partially on the machine, partially on the machine and partially on a remote machine as a stand-alone software package, or entirely on a remote machine or server.

[0118] In the context of the present disclosure, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or equipment. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any suitable combination of the foregoing. 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.

[0119] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the computer. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0120] The systems and techniques described herein may be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or a web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system may be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), and the Internet.

[0121] A computer system may include a client and a server. The client and the server are generally remote from each other and usually interact through a communication network. The relationship of client and server is generated by computer programs running on respective computers and having a client-server relationship with each other. The server may be a cloud server, a server of a distributed system, or a server combined with a blockchain.

[0122] 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 recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solutions disclosed in this disclosure can be achieved, and this document does not limit this.

[0123] The above specific implementations do not constitute a limitation on the protection scope of the present disclosure. 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 disclosure shall be included in the protection scope of the present disclosure.

Claims

1. A display control method, characterized in that: include: Determine, according to preset grayscale-brightness relationship information, a brightness value corresponding to a grayscale value of a specific color light-emitting element corresponding to each sub-pixel in each pixel point in the image to be displayed, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values ​​of the specific color light-emitting element, the pixel point in the image to be displayed includes multiple sub-pixels corresponding to the specific color light-emitting element, and the specific color includes red, green or blue; Determine the driving voltage corresponding to the brightness value of each of the light-emitting elements according to preset brightness-voltage relationship information, so that the display panel can display based on the driving voltage of each of the light-emitting elements, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages; The step of determining the brightness value corresponding to the grayscale value of the specific color light-emitting element corresponding to each sub-pixel in each pixel point in the image to be displayed according to the preset grayscale-brightness relationship information comprises: determining the grayscale-brightness relationship formula of the specific color light-emitting element by fitting the grayscale-brightness relationship information of the specific color light-emitting element; and determining the brightness value corresponding to the grayscale value of the specific color light-emitting element corresponding to each sub-pixel in each pixel point in the image to be displayed according to the grayscale-brightness relationship formula; The brightness-voltage relationship information includes a brightness-voltage relationship formula, and the brightness-voltage relationship formula is: Z=m*lnY+n, wherein Z is the driving voltage, Y is the brightness value, m is the fourth coefficient, and n is the voltage compensation coefficient.

2. The method according to claim 1, characterized in that: The grayscale-brightness relationship is: Y=a*X 3 +b*X 2 +c*X+d, wherein X is the grayscale value of the light-emitting element of the specific color, Y is the brightness value that the light-emitting element of the specific color needs to present at the corresponding grayscale value, a is the first coefficient, b is the second coefficient, c is the third coefficient, and d is the brightness compensation coefficient.

3. The method according to claim 2, characterized in that The first coefficient, the second coefficient, the third coefficient and the brightness compensation coefficient are obtained by fitting a cubic polynomial function to the grayscale-brightness data of the light-emitting element.

4. The method according to claim 1, characterized in that The grayscale-brightness relationship information includes a grayscale-brightness relationship table, in which a plurality of grayscale values ​​and brightness values ​​of light-emitting elements corresponding to each grayscale value are recorded.

5. The method according to claim 1, characterized in that The fourth coefficient and the voltage compensation coefficient are obtained by performing logarithmic function fitting on the brightness-voltage data of the light-emitting element.

6. The method according to claim 5, characterized in that m is greater than -1 and less than 0, and / or n is greater than 1.

7. The method according to claim 1, characterized in that The brightness-voltage relationship information includes a brightness-voltage relationship table, in which a plurality of brightness values ​​and a driving voltage of a light-emitting element corresponding to each brightness value are recorded.

8. The method according to claim 1, characterized in that The light emitting element includes a light emitting diode.

9. A display control device, characterized in that: include: a brightness determination module, configured to determine, according to preset grayscale-brightness relationship information, a brightness value corresponding to a grayscale value of a specific color light-emitting element corresponding to each sub-pixel in each pixel point in the image to be displayed, wherein the grayscale-brightness relationship information includes mapping relationship information between multiple grayscale values ​​and multiple brightness values ​​of the specific color light-emitting element, the pixel point in the image to be displayed includes multiple sub-pixels corresponding to the specific color light-emitting element, and the specific color includes red, green or blue; A voltage determination module, configured to determine a driving voltage corresponding to the brightness value of each of the light-emitting elements according to preset brightness-voltage relationship information, so that the display panel can display based on the driving voltage of each of the light-emitting elements, wherein the brightness-voltage relationship information includes mapping relationship information between multiple brightness values ​​and multiple driving voltages; The step of determining the brightness value corresponding to the grayscale value of the specific color light-emitting element corresponding to each sub-pixel in each pixel point in the image to be displayed according to the preset grayscale-brightness relationship information comprises: determining the grayscale-brightness relationship formula of the specific color light-emitting element by fitting the grayscale-brightness relationship information of the specific color light-emitting element; and determining the brightness value corresponding to the grayscale value of the specific color light-emitting element corresponding to each sub-pixel in each pixel point in the image to be displayed according to the grayscale-brightness relationship formula; The brightness-voltage relationship information includes a brightness-voltage relationship formula, and the brightness-voltage relationship formula is: Z=m*lnY+n, wherein Z is the driving voltage, Y is the brightness value, m is the fourth coefficient, and n is the voltage compensation coefficient.

10. A display device, characterized in that: The display control device according to claim 9 further comprises a display panel.

11. An electronic device, comprising: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 8.

12. A non-transitory computer-readable storage medium storing computer instructions, wherein: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-8.

Images