Image display method and device, chip, equipment and computer readable storage medium

Abstract

The invention discloses an image display method and device, a chip, equipment and a computer readable storage medium, and belongs to the technical field of display. The method comprises the steps that according to the brightness of each image partition in an image, the equivalent backlight brightness of each pixel in the image is determined, and the equivalent backlight brightness of the pixels is used for indicating the backlight brightness needed when the pixels are displayed; determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel; according to the brightness of each pixel in the image and the target backlight brightness, determining the target brightness of a dimming module corresponding to each pixel and the target brightness of a display module corresponding to each pixel; and displaying an image according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel. According to the method, the display effect of the image is ensured, and meanwhile, the power consumption of the backlight layer during working is reduced.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of display technology, and in particular to an image display method, apparatus, chip, device and computer-readable storage medium. Background Art

[0002] With the continuous development of computer technology, display screens based on BD CELL technology (a display technology) have emerged. Display screens based on BD CELL technology include a display layer (Main Cell), a dimming layer (Sub Cell) and a backlight layer. The display layer includes multiple display units, and the dimming layer includes multiple dimming units.

[0003] In the related art, when it is necessary to display an image on a display screen based on BD CELL technology, since the display screen based on BD CELL technology includes a dimming layer, which reduces the transmittance of light, in order to achieve the brightness of each pixel of the image, the backlight layer needs to display a higher brightness, thereby increasing the power consumption required for image display, resulting in a higher surface temperature of the display screen and reducing the service life of the display screen. Summary of the invention

[0004] The embodiments of the present application provide an image display method, device, chip, equipment and computer-readable storage medium, which can be used to solve the problems in the related art. The technical solution is as follows:

[0005] On the one hand, an embodiment of the present application provides an image display method, the method comprising:

[0006] Determining an equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, wherein the equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel;

[0007] Determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel;

[0008] Determining, according to the brightness of each pixel in the image and the target backlight brightness, a target brightness of a dimming module corresponding to each pixel and a target brightness of a display module corresponding to each pixel;

[0009] The image is displayed according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

[0010] In a possible implementation, determining the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image includes:

[0011] For any pixel among the pixels, determine a first image partition and a second image partition adjacent to the first image partition, where the first image partition is the image partition where the any pixel is located;

[0012] An equivalent backlight brightness of the any pixel is determined according to the any pixel, the brightness of the first image subarea, and the brightness of the second image subarea.

[0013] In a possible implementation manner, determining the equivalent backlight brightness of any pixel according to the any pixel, the brightness of the first image partition, and the brightness of the second image partition includes:

[0014] Determine a first backlight partition corresponding to the first image partition and a second backlight partition corresponding to the second image partition in the backlight layer, wherein one backlight partition corresponds to one light-emitting component, and the maximum brightness that can be emitted by the light-emitting component of the backlight partition is the brightness of the image partition corresponding to the backlight partition;

[0015] Determine a first expected brightness according to a first distance and a maximum brightness that can be emitted by the light-emitting component of the first backlight partition, wherein the first expected brightness is the brightness provided by the light-emitting component of the first backlight partition to the any pixel, the first distance is the distance from a first position to the light-emitting component of the first backlight partition, and the first position is the same position in the backlight layer as the position of the any pixel in the image;

[0016] Determine a second expected brightness according to a second distance and a maximum brightness that can be emitted by the light-emitting component of the second backlight partition, wherein the second expected brightness is the brightness provided by the light-emitting component of the second backlight partition to the any pixel, and the second distance is the distance from the first position to the light-emitting component of the second backlight partition;

[0017] The sum of the first expected brightness and the second expected brightness is determined as the equivalent backlight brightness of any one pixel.

[0018] In a possible implementation, determining the first expected brightness according to the first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight subarea includes:

[0019] Determine a brightness ratio corresponding to the first distance;

[0020] The product of the brightness ratio and the maximum brightness that can be emitted by the light-emitting component of the first backlight subarea is taken as the first expected brightness.

[0021] In a possible implementation manner, before determining the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, the method further includes:

[0022] determining the brightness of each pixel in the image;

[0023] The brightness of each image partition is determined according to the brightness of the pixels included in each image partition.

[0024] In a possible implementation manner, determining the brightness of each image partition according to the brightness of pixels included in each image partition includes:

[0025] For any image partition among the image partitions, determining the maximum brightness and average brightness of pixels included in the image partition;

[0026] The brightness of any image partition is determined according to the maximum brightness and the average brightness of the pixels included in any image partition.

[0027] In a possible implementation, determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel includes:

[0028] Determine, according to the brightness of each image partition, a first number of image partitions having brightness higher than a first brightness threshold, a second number of image partitions having brightness lower than a second brightness threshold, and a third number of image partitions having brightness between the first brightness threshold and the second brightness threshold, wherein the first brightness threshold is higher than the second brightness threshold;

[0029] In a case where the first number and the second number are higher than a first number threshold, and the third number is lower than the first number threshold, determining a reference image partition in each of the image partitions, determining an average value of equivalent backlight brightness of pixels in the reference image partition as a target backlight brightness of the backlight layer, and the brightness of the reference image partition is higher than the first brightness threshold;

[0030] When at least one of the first number and the second number is not higher than the first number threshold, and / or the third number is not lower than the first number threshold, the average value of the equivalent backlight brightness of each pixel is determined as the target backlight brightness of the backlight layer.

[0031] In a possible implementation, determining, according to the brightness of each pixel in the image and the target backlight brightness, the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel includes:

[0032] Determine the overall backlight brightness of each pixel according to the brightness of each pixel in the image, wherein the overall backlight brightness of the pixel is used to indicate the brightness required by the dimming module corresponding to the pixel and the brightness required by the backlight layer when displaying the pixel;

[0033] Determine the quotient of the overall backlight brightness of each pixel and the target backlight brightness as the target brightness of the dimming module corresponding to each pixel;

[0034] The quotient of the brightness of each pixel and the overall backlight brightness of each pixel is determined as the target brightness of the display module corresponding to each pixel.

[0035] In a possible implementation manner, determining the overall backlight brightness of each pixel according to the brightness of each pixel in the image includes:

[0036] For an i-th pixel and an i+1-th pixel among the pixels, determine a maximum brightness and an average brightness among the brightness of the i-th pixel and the brightness of the i+1-th pixel, where i is an integer greater than or equal to 1;

[0037] The overall backlight brightness of the i-th pixel and the i+1-th pixel is determined according to the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel.

[0038] In a possible implementation, the method further includes:

[0039] Determine the dimming module offset amount according to the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, wherein the dimming module offset amount is used to indicate the offset amount of the dimming module corresponding to any pixel when the display screen is viewed at the gaze angle;

[0040] For the i-th pixel and the i+1-th pixel among the pixels, the dimming modules corresponding to the i-th pixel and the i+1-th pixel are determined according to the i-th pixel, the i+1-th pixel and the offset quantity of the dimming module, where i is an integer greater than or equal to 1.

[0041] On the other hand, an embodiment of the present application provides an image display device, the device comprising:

[0042] A determination module, used to determine the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, wherein the equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel;

[0043] The determination module is further used to determine the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel;

[0044] The determination module is further used to determine the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel according to the brightness of each pixel in the image and the target backlight brightness;

[0045] The display module is used to display the image according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

[0046] In a possible implementation, the determination module is used to determine, for any pixel among the pixels, a first image partition and a second image partition adjacent to the first image partition, where the first image partition is the image partition where the any pixel is located; and determine the equivalent backlight brightness of the any pixel based on the brightness of the any pixel, the brightness of the first image partition, and the brightness of the second image partition.

[0047] In a possible implementation, the determination module is used to determine a first backlight partition corresponding to the first image partition and a second backlight partition corresponding to the second image partition in the backlight layer, one backlight partition corresponds to one light-emitting component, and the maximum brightness that can be emitted by the light-emitting component of the backlight partition is the brightness of the image partition corresponding to the backlight partition; determine a first expected brightness according to a first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition, the first expected brightness is the brightness provided by the light-emitting component of the first backlight partition to any pixel, the first distance is the distance from a first position to the light-emitting component of the first backlight partition, and the first position is the position in the backlight layer that is the same as the position of any pixel in the image; determine a second expected brightness according to a second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight partition, the second expected brightness is the brightness provided by the light-emitting component of the second backlight partition to any pixel, and the second distance is the distance from the first position to the light-emitting component of the second backlight partition; determine the sum of the first expected brightness and the second expected brightness as the equivalent backlight brightness of any pixel.

[0048] In a possible implementation, the determination module is used to determine a brightness ratio corresponding to the first distance; and take the product of the brightness ratio and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition as the first expected brightness.

[0049] In a possible implementation manner, the determination module is further configured to determine the brightness of each pixel in the image; and determine the brightness of each image partition according to the brightness of the pixels included in each image partition.

[0050] In a possible implementation, the determination module is used to determine, for any image partition among the individual image partitions, the maximum brightness and average brightness of the pixels included in the any image partition; and determine the brightness of the any image partition based on the maximum brightness and average brightness of the pixels included in the any image partition.

[0051] In a possible implementation, the determination module is used to determine, based on the brightness of the respective image partitions, a first number of image partitions whose brightness is higher than a first brightness threshold, a second number of image partitions whose brightness is lower than a second brightness threshold, and a third number of image partitions whose brightness is between the first brightness threshold and the second brightness threshold, wherein the first brightness threshold is higher than the second brightness threshold; when the first number and the second number are higher than the first number threshold, and the third number is lower than the first number threshold, determine a reference image partition among the respective image partitions, determine that the average value of the equivalent backlight brightness of the pixels in the reference image partition is the target backlight brightness of the backlight layer, and the brightness of the reference image partition is higher than the first brightness threshold; when at least one of the first number and the second number is not higher than the first number threshold, and / or the third number is not lower than the first number threshold, determine that the average value of the equivalent backlight brightness of the respective pixels is the target backlight brightness of the backlight layer.

[0052] In one possible implementation, the determination module is used to determine the overall backlight brightness of each pixel based on the brightness of each pixel in the image, wherein the overall backlight brightness of the pixel is used to indicate the brightness required by the dimming module corresponding to the pixel and the brightness required by the backlight layer when displaying the pixel; the quotient of the overall backlight brightness of each pixel and the target backlight brightness is determined as the target brightness of the dimming module corresponding to each pixel; and the quotient of the brightness of each pixel and the overall backlight brightness of each pixel is determined as the target brightness of the display module corresponding to each pixel.

[0053] In a possible implementation, the determination module is used to determine, for the i-th pixel and the i+1-th pixel among the pixels, the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel, where i is an integer greater than or equal to 1; and determine the overall backlight brightness of the i-th pixel and the i+1-th pixel based on the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel.

[0054] In a possible implementation, the determination module is further used to determine the offset amount of the dimming module according to the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, and the dimming module offset amount is used to indicate the offset amount of the dimming module corresponding to any pixel when the display screen is viewed at the gaze angle; for the i-th pixel and the i+1-th pixel among the pixels, the dimming modules corresponding to the i-th pixel and the i+1-th pixel are determined according to the i-th pixel, the i+1-th pixel and the dimming module offset amount, where i is an integer greater than or equal to 1.

[0055] On the other hand, an embodiment of the present application provides a chip, which includes a processor and a memory, wherein the memory is used to store at least one program, and the at least one program is loaded and executed by the processor to implement the image display method in the embodiment of the present application.

[0056] On the other hand, an embodiment of the present application provides a display device, which includes a processor and a memory, wherein the memory stores at least one program code, and the at least one program code is loaded and executed by the processor so that the display device implements any of the above-mentioned image display methods.

[0057] On the other hand, a computer-readable storage medium is provided, wherein at least one program code is stored in the computer-readable storage medium, and the at least one program code is loaded and executed by a processor to implement any of the above-mentioned image display methods.

[0058] On the other hand, a computer program or a computer program product is also provided, wherein the computer program or the computer program product stores at least one computer instruction, and the at least one computer instruction is loaded and executed by a processor to implement any of the above-mentioned image display methods.

[0059] The technical solution provided by the embodiments of the present application brings at least the following beneficial effects:

[0060] The technical solution provided in the embodiment of the present application distributes the brightness of each pixel in the image to the backlight layer, the display module corresponding to each pixel and the dimming module corresponding to each pixel when displaying an image. The backlight layer, the display module corresponding to the pixel and the dimming module corresponding to the pixel jointly provide the brightness of the pixel, so that the backlight layer, the display layer and the dimming layer jointly share the brightness of the image, thereby ensuring the display effect of the image while reducing the backlight brightness required to be provided by the backlight layer, thereby reducing the power consumption of the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thereby increasing the service life of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0062] Figure 1 It is a schematic diagram of an implementation environment of an image display method provided in an embodiment of the present application;

[0063] Figure 2 is a structural schematic diagram of a display screen provided in an embodiment of the present application;

[0064] Figure 3 is a schematic diagram of a display module and a dimming module provided in an embodiment of the present application;

[0065] Figure 4 is a flow chart of an image display method provided by an embodiment of the present application;

[0066] Figure 5 is a schematic diagram of a corresponding relationship between distance and brightness ratio provided in an embodiment of the present application;

[0067] Figure 6 It is a schematic diagram of a color shift generation mechanism and color shift phenomenon provided by an embodiment of the present application;

[0068] Figure 7 It is a schematic diagram of a screen content loss mechanism, screen content loss phenomenon, and halo phenomenon provided by an embodiment of the present application;

[0069] Figure 8 is a schematic diagram of a dimming module for determining a pixel corresponding to an embodiment of the present application;

[0070] Fig. 9 is a schematic diagram of determining a gaze angle provided in an embodiment of the present application;

[0071] Fig.10 is a flowchart of another image display method provided in an embodiment of the present application;

[0072] Fig.11 is a structural schematic diagram of an image display device provided in an embodiment of the present application;

[0073] Fig.12 It is a structural schematic diagram of a display device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0074] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0075] It should be noted that the terms "first", "second", etc. in this application are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0076] Figure 1 is a schematic diagram of an implementation environment of an image display method provided in an embodiment of the present application, such as Figure 1 As shown, the implementation environment includes: a display device 101. The display device 101 is used to execute the image display method provided in the embodiment of the present application.

[0077] The display device 101 includes a display screen having a backlight layer, a dimming layer (sub cell) and a display layer (main cell), wherein the dimming layer includes a plurality of dimming modules and the display layer includes a plurality of display modules. Figure 2 It is a structural schematic diagram of a display screen provided by an embodiment of the present application, which includes a backlight layer, a dimming layer and a display layer, the backlight layer is located below the dimming layer, and the display layer is located above the dimming layer. The contrast of the display screen can be as high as 200000:1, which is close to the effect of an OLED (Organic Light-Emitting Diode) screen. The display layer displays a color signal, and the dimming layer displays a grayscale image. The display layer and the dimming layer fit tightly together from top to bottom, one dimming module in the dimming layer corresponds to four display modules in the display layer, and the area of ​​one dimming module in the dimming layer is four times the area of ​​one display module in the display layer. The display layer adjusts details and colors, and the dimming layer adjusts brightness and darkness. Through the two-dimensional independent light control of the dimming layer, one million partitions can be achieved to achieve ultra-high-precision dynamic backlight control.

[0078] The display modules in the display layer are square blocks. To avoid rainbow patterns caused by the superposition of two screens, the dimming modules in the dimming layer are "V" shaped. Figure 3 301 is a schematic diagram of a display module and a dimming module provided in an embodiment of the present application, wherein 301 is a display module and 302 is a dimming module.

[0079] Optionally, the display device 101 may be any electronic device with a display screen, such as a PC (Personal Computer), a mobile phone, a smart phone, a PDA (Personal Digital Assistant), a wearable device, a PPC (Pocket PC), a tablet computer, a smart car machine, a smart TV, a smart speaker, a smart watch, etc.

[0080] Those skilled in the art should understand that the above-mentioned terminal device 101 is only an example, and other existing or future terminal devices, if applicable to the present application, should also be included in the protection scope of the present application and are included here by reference.

[0081] The present application embodiment provides an image display method, which can be applied to the above Figure 1 The implementation environment shown is Figure 4 As an example, the flowchart of an image display method provided in the embodiment of the present application is shown in FIG. Figure 1 The terminal device 101 in the embodiment is executed. Figure 4 As shown, the method includes the following steps 401 to 404.

[0082] In step 401, the equivalent backlight brightness of each pixel in the image is determined according to the brightness of each image partition in the image. The equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel.

[0083] In a possible implementation, before determining the equivalent backlight brightness of each pixel in the image based on the brightness of each image partition in the image, it is necessary to first determine the brightness of each image partition in the image, and the embodiment of the present application does not limit the method for determining the brightness of each image partition in the image. Optionally, the process of determining the brightness of each image partition in the image includes: determining the brightness of each pixel in the image; and determining the brightness of each image partition based on the brightness of the pixels included in each image partition.

[0084] Each pixel in the image corresponds to color information (RGB information), and the color information includes a red component, a green component, and a blue component. The process of determining the brightness of each pixel in the image includes: for any pixel among the pixels, determining the maximum value of the red component, the green component, and the blue component of any pixel as the brightness of the pixel. Alternatively, the brightness of the pixel is determined based on the red component, the green component, and the blue component of any pixel.

[0085] Optionally, the brightness of any pixel is determined according to the following formula (1) based on the red component, green component and blue component of the pixel.

[0086] Brightness=0.3*R+0.6*G+0.1*B (1)

[0087] In the above formula (1), Brightness is the brightness of the pixel, R is the red component of the pixel, G is the green component of the pixel, and B is the blue component of the pixel.

[0088] It should be noted that the brightness of each pixel in the image may also be determined by other methods, which are not limited in the embodiments of the present application and will not be described one by one here.

[0089] Optionally, after determining the brightness of each pixel in the image, the image may be partitioned to obtain a reference number of image partitions, and then the brightness of each image partition is determined according to the brightness of the pixels included in each image partition. Exemplarily, the image is partitioned to obtain M*N reference partitions, where M and N are both integers greater than or equal to 1.

[0090] In one possible implementation, after determining the brightness of each pixel in the image, the process of determining the brightness of each image partition according to the brightness of the pixels included in each image partition includes: for each image partition in each image partition, determining the maximum brightness and average brightness of the pixels included in each image partition; determining the brightness of each image partition according to the maximum brightness and average brightness of the pixels included in each image partition.

[0091] Among them, the process of determining the maximum brightness and average brightness of the pixels included in each image partition includes: taking the maximum value of the brightness of the pixels included in each image partition as the maximum brightness of the pixels included in each image partition; averaging the brightness of the pixels included in each image partition to obtain the average brightness of the pixels included in each image partition.

[0092] In a possible implementation, the process of determining the brightness of each image partition according to the maximum brightness and average brightness of the pixels included in each image partition includes: determining the brightness of each image partition according to the maximum brightness, average brightness, maximum brightness weight and average brightness weight of the pixels included in each image partition. Wherein, the maximum brightness weight and the average brightness weight are both set based on experience, or adjusted according to the implementation environment, and the embodiments of the present application are not limited to this. In some embodiments, the sum of the maximum brightness weight and the average brightness weight is 1. Exemplarily, the maximum brightness weight is 0.4 and the average brightness weight is 0.6. In other embodiments, the sum of the maximum brightness weight and the average brightness weight is not 1. For example, the maximum brightness weight is 0.8 and the average brightness weight is 0.4.

[0093] Optionally, the brightness of each image partition is determined according to the following formula (2) based on the maximum brightness, average brightness, maximum brightness weight and average brightness weight of the pixels included in each image partition.

[0094] BL ij =B max *α+B avg *β (2)

[0095] In the above formula (2), BL ij is the brightness of the image partition at row i and column j, B max is the maximum brightness of the pixels in the image partition of the i-th row and j-th column, B avg is the average brightness of the pixels included in the image partition of the i-th row and j-th column, α is the maximum brightness weight, and β is the average brightness weight. Wherein, i is an integer greater than or equal to 1 and not greater than the number of image partitions in the horizontal direction of the image; j is an integer greater than or equal to 1 and not greater than the number of image partitions in the vertical direction of the image.

[0096] In a possible implementation, after the brightness of each image partition in the image is determined based on the above process, the process of determining the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image includes: for any pixel among the pixels, determining the first image partition and the second image partition adjacent to the first image partition; determining the equivalent backlight brightness of the pixel according to any pixel, the brightness of the first image partition and the brightness of the second image partition. Wherein, the first image partition is the image partition where any pixel is located, and the number of the second image partitions is at least one. Exemplarily, the second image partition includes an image partition adjacent to the first image partition and on the upper side of the first image partition, an image partition adjacent to the first image partition and on the lower side of the first image partition, an image partition adjacent to the first image partition and on the left side of the first image partition, and an image partition adjacent to the first image partition and on the right side of the first image partition.

[0097] Optionally, the process of determining the equivalent backlight brightness of a pixel according to any pixel, the brightness of a first image partition and the brightness of a second image partition includes: determining a first backlight partition corresponding to the first image partition and a second backlight partition corresponding to the second image partition in the backlight layer, one backlight partition corresponds to one light-emitting component, and the maximum brightness that can be emitted by the light-emitting component of the backlight partition is the brightness of the image partition corresponding to the backlight partition; determining a first expected brightness according to a first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition, the first expected brightness being the brightness provided to the pixel by the light-emitting component of the first backlight partition, the first distance being the distance from the first position to the light-emitting component of the first backlight partition, and the first position being the position in the backlight layer that is the same as the position of the pixel in the image; determining a second expected brightness according to the second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight partition, the second expected brightness being the brightness provided to the pixel by the light-emitting component of the second backlight partition, and the second distance being the distance from the first position to the light-emitting component of the second backlight partition; determining the sum of the first expected brightness and the second expected brightness as the equivalent backlight brightness of the pixel.

[0098] The embodiment of the present application does not limit the number of light sources included in the light emitting assembly of the backlight partition. Optionally, the number of light sources included in the light emitting assembly of the backlight partition can be one or more. The light source can be a light emitting diode (LED) or other objects capable of emitting light, which is not limited in the embodiment of the present application.

[0099] Exemplarily, any pixel is a pixel located at the position (10, 10) among all pixels included in the image, that is, any pixel is located at the position (10, 10) in the image, and the position (10, 10) in the backlight layer is determined to be the first position. The distance from the first position to the light-emitting component of the first backlight partition refers to the length of the line segment starting from the first position and ending at the light-emitting component of the first backlight partition.

[0100] The process of determining the first expected brightness according to the first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition is similar to the process of determining the second expected brightness according to the second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight partition. The embodiment of the present application only takes the process of determining the first expected brightness according to the first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition as an example for explanation. Optionally, the process of determining the first expected brightness according to the first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition includes: determining the brightness ratio corresponding to the first distance; and taking the product of the brightness ratio and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition as the first expected brightness.

[0101] The distance is negatively correlated with the brightness ratio. The greater the distance, the lower the brightness ratio corresponding to the distance. Conversely, the smaller the distance, the higher the brightness ratio corresponding to the distance. Figure 5 It is a schematic diagram of the correspondence between distance and brightness ratio provided in an embodiment of the present application.

[0102] In step 402, the target backlight brightness of the backlight layer is determined according to the equivalent backlight brightness of each pixel.

[0103] In a possible implementation, the process of determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel includes: determining, according to the brightness of each image partition, a first number of image partitions whose brightness is higher than a first brightness threshold, a second number of image partitions whose brightness is lower than a second brightness threshold, and a third number of image partitions whose brightness is between the first brightness threshold and the second brightness threshold, wherein the first brightness threshold is higher than the second brightness threshold; when the first number and the second number are higher than the first number threshold, and the third number is lower than the first number threshold, determining a reference image partition in each image partition, and determining the average value of the equivalent backlight brightness of the pixels in the reference image partition as the target backlight brightness of the backlight layer. The brightness of the reference image partition is higher than the first brightness threshold. When at least one of the first number and the second number is not higher than the first number threshold, and / or the third number is not lower than the first number threshold, determining the average value of the equivalent backlight brightness of each pixel as the target backlight brightness of the backlight layer.

[0104] The first brightness threshold and the second brightness threshold are set based on experience, or adjusted according to the implementation environment, and the embodiment of the present application does not limit this. For example, the first brightness threshold is 200 and the second brightness threshold is 100. The first quantity threshold is also set based on experience, or adjusted according to the implementation environment, and the embodiment of the present application does not limit this. For example, the first quantity threshold is 50.

[0105] Optionally, the target backlight brightness of the backlight layer is determined according to the equivalent backlight brightness of each pixel according to the following formula (3).

[0106]

[0107] In the above formula (3), V BL is the target backlight brightness of the backlight layer. When the image is a high-contrast image, n is the total number of pixels included in the reference image partition, BL i is the equivalent backlight brightness of the i-th pixel included in the reference image partition. When the image is a non-high contrast image, n is the total number of pixels included in the image, BL i is the equivalent backlight brightness of the i-th pixel included in the image.

[0108] In step 403, the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel are determined according to the brightness of each pixel in the image and the target backlight brightness.

[0109] In a possible implementation, the process of determining the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel according to the brightness of each pixel in the image and the target backlight brightness includes: determining the overall backlight brightness of each pixel according to the brightness of each pixel in the image, the overall backlight brightness of the pixel is used to indicate the brightness required by the dimming module corresponding to the pixel and the brightness required by the backlight layer when the pixel is displayed; determining the quotient of the overall backlight brightness of each pixel and the target backlight brightness as the target brightness of the dimming module corresponding to each pixel; determining the quotient of the brightness of each pixel and the overall backlight brightness of each pixel as the target brightness of the display module corresponding to each pixel. The overall backlight brightness of a pixel refers to the product of the brightness required by the dimming module corresponding to the pixel and the brightness required by the backlight layer when the pixel is displayed.

[0110] Optionally, the process of determining the overall backlight brightness of each pixel according to the brightness of each pixel in the image includes: for the i-th pixel and the i+1-th pixel among the pixels, determining the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel; and determining the overall backlight brightness of the i-th pixel and the i+1-th pixel according to the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel, wherein i is an integer greater than or equal to 1.

[0111] For example, for the second pixel and the third pixel in each pixel, the brightness of the second pixel is 10, and the brightness of the third pixel is 20, then the maximum brightness of the determined brightness of the second pixel and the brightness of the third pixel is 20, and the average brightness is (10+20) / 2=15.

[0112] The process of determining the overall backlight brightness of the i-th pixel and the i+1-th pixel according to the maximum brightness and average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel includes: determining the overall backlight brightness of the i-th pixel and the i+1-th pixel according to the maximum brightness, average brightness, maximum brightness weight and average brightness weight of the brightness of the i-th pixel and the brightness of the i+1-th pixel. The overall backlight brightness of the i-th pixel is the same as the overall backlight brightness of the i+1-th pixel.

[0113] Among them, the process of determining the overall backlight brightness of the i-th pixel and the i+1-th pixel based on the maximum brightness, average brightness, maximum brightness weight and average brightness weight of the brightness of the i-th pixel and the brightness of the i+1-th pixel is similar to the process of determining the brightness of any image partition based on the maximum brightness, average brightness, maximum brightness weight and average brightness weight of the pixels included in any image partition in the above steps, and the embodiments of the present application will not be repeated here.

[0114] In a possible implementation, the target brightness of the dimming module corresponding to each pixel is determined according to the overall backlight brightness of each pixel and the target backlight brightness of the backlight layer according to the following formula (4).

[0115]

[0116] In the above formula (4), V sub is the target brightness of the dimming module corresponding to the pixel, V dcell is the overall backlight brightness of the pixel, V BL The target backlight brightness of the backlight layer.

[0117] In a possible implementation, the target brightness of the display module corresponding to each pixel is determined according to the brightness of each pixel and the overall backlight brightness of each pixel according to the following formula (5).

[0118]

[0119] In the above formula (5), V main is the target brightness of the display module corresponding to the pixel, V input is the brightness of the pixel, V dcell is the overall backlight brightness of the pixel.

[0120] After determining the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel, it is also necessary to determine the dimming module corresponding to each pixel and the display module corresponding to each pixel. Since the resolution of the image is the same as the resolution of the display layer, each pixel in the image corresponds to the display module located at the same position in the display layer. For example, the pixel in the first row and first column of the image corresponds to the display module in the first row and first column of the display layer. And the correspondence between the pixels in the image and the display modules in the display layer does not change with the change of the viewing angle.

[0121] The dimming module corresponding to each pixel is the dimming module corresponding to the display module corresponding to each pixel. The dimming layer is located behind the display layer, and the dimming layer is bonded to the display layer. Due to the bonding process, there is a certain bonding distance between the dimming layer and the display layer. When the viewing angle of the display screen is different and the bonding distance between the display layer and the dimming layer is different, the dimming module corresponding to the display module is different. The light output brightness of the display module and the dimming module corresponding to the display module after superposition may deviate from the ideal light output brightness. When the actual light output brightness is higher than the ideal light output brightness, a halo problem will occur. When the actual light output brightness is lower than the ideal light output brightness, color deviation and partial loss of the picture will occur. Therefore, it is necessary to determine the dimming module corresponding to the display module according to the gaze angle and the bonding distance, and then use the dimming module corresponding to the display module as the dimming module corresponding to the pixel corresponding to the display module. Then, when the image is displayed according to the target brightness of the display module corresponding to the pixel and the target brightness of the dimming module corresponding to the pixel, the deviation of the actual light output brightness of the display module corresponding to the pixel and the dimming module corresponding to the pixel is avoided, thereby avoiding the problems of halo, color deviation and missing image content when the image is displayed.

[0122] like Figure 6 It is a schematic diagram of a color shift generation mechanism and color shift phenomenon provided in an embodiment of the present application. Figure 6 (1) is a schematic diagram of the color shift mechanism. When viewing the display screen, not all sub-pixels in the display module of the display layer correspond to the dimming module of the upper dimming layer. When the viewing angle is greater than 0, the blue sub-pixels in the display module correspond to the dimming module of the upper dimming layer. At this time, the display module is blue. When the viewing angle is less than 0, the red sub-pixels in the display module correspond to the dimming module of the upper dimming layer. At this time, the display module is red. Figure 6 (2) is a schematic diagram of a color cast phenomenon, wherein 601 is blue and 602 is red.

[0123] like Figure 7 It is a schematic diagram of a screen content missing mechanism, screen content missing phenomenon, and halo phenomenon provided in an embodiment of the present application. Figure 7 (1) in the figure is a schematic diagram of the mechanism of screen content loss, where white represents the highest brightness and black represents the lowest brightness. As can be seen from the figure, the bright display module corresponds to the dark dimming module, resulting in the actual light output brightness of the display module and the dimming module corresponding to the display module being far lower than the ideal light output brightness, resulting in the phenomenon of screen content loss. Figure 7 (2) in FIG. 1 is a schematic diagram of a phenomenon of missing screen content. On the contrary, when a dark display module corresponds to a bright dimming module, the actual light output brightness of the display module and the dimming module corresponding to the display module is higher than the ideal light output brightness, and a halo phenomenon will occur. Figure 7(3) in FIG. 1 is a schematic diagram of a halo phenomenon.

[0124] In a possible implementation, the process of determining the dimming module corresponding to a pixel includes: determining the dimming module offset number according to the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, the dimming module offset number is used to indicate the offset number of the dimming module corresponding to any pixel when the display screen is viewed at the gaze angle; for the i-th pixel and the i+1-th pixel in each pixel, determining the dimming modules corresponding to the i-th pixel and the i+1-th pixel according to the i-th pixel, the i+1-th pixel, and the dimming module offset number, wherein i is an integer greater than or equal to 1. The dimming module corresponding to the i-th pixel is the same as the dimming module corresponding to the i+1-th pixel.

[0125] The dimming module offset amount is determined according to the following formula (6) based on the viewing angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer.

[0126]

[0127] In the above formula (6), ceil() represents rounding up, Δd is the distance between the display layer and the dimming layer, θ is the viewing angle, and sub pixel The width of the dimming module is set based on experience or adjusted according to the implementation environment, and the embodiment of the present application does not limit this.

[0128] like Figure 8 : This is a schematic diagram of a dimming module corresponding to a pixel provided by an embodiment of the present application. Among them, the display layer displays four display modules, namely display module 0, display module 1, display module 2 and display module 3, and the dimming layer displays four dimming modules, namely dimming module 0, dimming module 1, dimming module 2 and dimming module 3. When the gaze angle is θ and the fitting distance between the display layer and the dimming layer is Δd, the dimming modules corresponding to display module 0 and display module 1 are dimming module 2 and dimming module 3, that is, the dimming modules corresponding to the pixels corresponding to display module 0 and the pixels corresponding to display module 1 are dimming module 2 and dimming module 3. Since the display module and the pixel are one-to-one corresponding and will not change with the change of the gaze angle and the fitting distance, the pixel corresponding to display module 0 is pixel 0, and the pixel corresponding to display module 1 is pixel 1, that is, the dimming modules corresponding to pixel 0 and pixel 1 are dimming module 2 and dimming module 3. The dimming modules corresponding to other pixels are similar and will not be repeated here.

[0129] In a possible implementation, before determining the offset amount of the dimming module according to the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, it is necessary to first determine the gaze angle. The embodiment of the present application does not limit the method for determining the gaze angle. Optionally, the process of determining the gaze angle includes: collecting an image including the eye, analyzing the image including the eye, obtaining the spatial position of the eye and the position of the eye looking at the screen; determining the gaze angle according to the spatial position of the eye and the position of the eye looking at the screen.

[0130] The image including the eye is collected by means of a built-in image acquisition device on the display screen. The image acquisition device includes but is not limited to a camera. According to the spatial position of the eye and the position of the screen where the eye is looking at, the process of determining the gaze angle includes: determining the angle between the line segment between the spatial position of the eye and the position where the eye is looking at the screen and the first ray as the gaze angle. The starting point of the first ray is the position where the eye is looking at the screen, and the first ray is parallel to the longitudinal line of the display screen.

[0131] like Fig. 9 901 is a display screen, 902 is an image acquisition device, 903 is the spatial position of the eye, 904 is the position of the eye gazing at the screen, and θ is the gaze angle.

[0132] In step 404, an image is displayed according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

[0133] In one possible implementation, after the target backlight brightness of the backlight layer is determined in the above step 402 and the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel are determined in the above step 403, the brightness of the backlight layer is controlled to be the target backlight brightness, the brightness of the dimming module corresponding to each pixel in the dimming layer is controlled to be the target brightness of the dimming module corresponding to each pixel, and the brightness of the display module corresponding to each pixel in the display layer is controlled to be the target brightness of the display module corresponding to each pixel, so as to display the image on the display screen.

[0134] When displaying an image, the above method distributes the brightness of each pixel in the image to the backlight layer, the display module corresponding to each pixel, and the dimming module corresponding to each pixel. The backlight layer, the display module corresponding to the pixel, and the dimming module corresponding to the pixel jointly provide the brightness of the pixel, so that the backlight layer, the display layer, and the dimming layer jointly share the brightness of the image, thereby ensuring the display effect of the image while reducing the backlight brightness required to be provided by the backlight layer, thereby reducing the power consumption of the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thereby increasing the service life of the display screen.

[0135] Moreover, when determining the dimming module corresponding to the pixel, the viewing angle and the fitting distance between the display layer and the dimming layer are taken into consideration, so that the dimming module corresponding to the determined pixel is more accurate. Therefore, when the image is displayed according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel, there will be no problem of the displayed brightness deviating from the pixel brightness, and there will be no color cast, missing image content and halo problems, which can further improve the display effect of the image.

[0136] Next, please combine Fig.10 The image display method provided in the embodiment of the present application is explained again by way of example. Fig.10 is a flowchart of another image display method provided by an embodiment of the present application. Fig.10 , the method comprises the following steps.

[0137] Step 1001: Determine the brightness of each pixel in the image.

[0138] In a possible implementation, the process of determining the brightness of each pixel in the image has been described in the above step 401. For details, please refer to the content of the above step 401, which will not be repeated here.

[0139] Step 1002: Determine the brightness of each image partition according to the brightness of the pixels included in each image partition.

[0140] In a possible implementation, the process of determining the brightness of each image partition according to the brightness of the pixels included in each image partition has been described in the above step 401. For details, please refer to the content of the above step 401, which will not be repeated here.

[0141] Step 1003: Determine the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition.

[0142] In a possible implementation, the process of determining the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition has been described in the above step 401. For details, please refer to the content of the above step 401, which will not be repeated here.

[0143] Step 1004: Determine the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel.

[0144] In a possible implementation, the process of determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel has been described in the above step 402. For details, please refer to the content of the above step 402, which will not be repeated here.

[0145] Step 1005: Determine the overall backlight brightness of each pixel according to the brightness of each pixel in the image.

[0146] In a possible implementation, the process of determining the overall backlight brightness of each pixel according to the brightness of each pixel in the image has been described in the above step 403. For details, please refer to the content of the above step 403, which will not be repeated here.

[0147] Step 1006: Determine the target brightness of the dimming module corresponding to each pixel according to the overall backlight brightness of each pixel and the target backlight brightness.

[0148] In a possible implementation, the process of determining the target brightness of the dimming module corresponding to each pixel according to the overall backlight brightness and the target backlight brightness of each pixel has been described in the above step 403. For details, please refer to the content of the above step 403 and will not be repeated here.

[0149] Step 1007: Determine the target brightness of the display module corresponding to each pixel according to the brightness of each pixel and the overall backlight brightness of each pixel.

[0150] In one possible implementation, the process of determining the target brightness of the display module corresponding to each pixel based on the brightness of each pixel and the overall backlight brightness of each pixel has been described in the above step 403. For details, please see the content of the above step 403, which will not be repeated here.

[0151] Step 1008: display an image according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

[0152] In one possible implementation, the process of displaying an image according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel has been described in the above step 404. For details, please see the content of the above step 404, which will not be repeated here.

[0153] To summarize, in the embodiments of the present application, when displaying an image, the brightness of each pixel in the image is distributed to the backlight layer, the display module corresponding to each pixel, and the dimming module corresponding to each pixel. The brightness of the pixel is jointly provided by the backlight layer, the display module corresponding to the pixel, and the dimming module corresponding to the pixel, so that the backlight layer, the display layer, and the dimming layer share the brightness of the image together, thereby ensuring the display effect of the image while reducing the backlight brightness required to be provided by the backlight layer, thereby reducing the power consumption of the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thereby increasing the service life of the display screen.

[0154] Fig.11 FIG. 1 is a schematic diagram of the structure of an image display device provided in an embodiment of the present application. Fig.11 As shown, the device comprises:

[0155] A determination module 1101 is used to determine the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, and the equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel;

[0156] The determination module 1101 is further used to determine the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel;

[0157] The determination module 1101 is further used to determine the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel according to the brightness of each pixel in the image and the target backlight brightness;

[0158] The display module 1102 is used to display an image according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

[0159] In one possible implementation, the determination module 1101 is used to determine, for any pixel among the pixels, a first image partition and a second image partition adjacent to the first image partition, where the first image partition is the image partition where any pixel is located; and determine the equivalent backlight brightness of any pixel based on the brightness of any pixel, the brightness of the first image partition, and the brightness of the second image partition.

[0160] In a possible implementation, a determination module 1101 is used to determine a first backlight partition corresponding to a first image partition and a second backlight partition corresponding to a second image partition in a backlight layer, wherein one backlight partition corresponds to one light-emitting component, and the maximum brightness that can be emitted by the light-emitting component of the backlight partition is the brightness of the image partition corresponding to the backlight partition; a first expected brightness is determined based on a first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition, wherein the first expected brightness is the brightness provided by the light-emitting component of the first backlight partition to any pixel, the first distance is the distance from the first position to the light-emitting component of the first backlight partition, and the first position is the position in the backlight layer that is the same as the position of any pixel in the image; a second expected brightness is determined based on a second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight partition, wherein the second expected brightness is the brightness provided by the light-emitting component of the second backlight partition to any pixel, and the second distance is the distance from the first position to the light-emitting component of the second backlight partition; and a sum of the first expected brightness and the second expected brightness is determined to be the equivalent backlight brightness of any pixel.

[0161] In a possible implementation, the determination module 1101 is used to determine a brightness ratio corresponding to the first distance; and take the product of the brightness ratio and the maximum brightness that can be emitted by the light-emitting component of the first backlight subarea as the first expected brightness.

[0162] In a possible implementation, the determination module 1101 is further configured to determine the brightness of each pixel in the image; and determine the brightness of each image partition according to the brightness of the pixels included in each image partition.

[0163] In a possible implementation, the determination module 1101 is used to determine the maximum brightness and average brightness of the pixels included in any image partition in each image partition; and determine the brightness of any image partition based on the maximum brightness and average brightness of the pixels included in any image partition.

[0164] In a possible implementation, the determination module 1101 is used to determine, based on the brightness of each image partition, a first number of image partitions whose brightness is higher than a first brightness threshold, a second number of image partitions whose brightness is lower than a second brightness threshold, and a third number of image partitions whose brightness is between the first brightness threshold and the second brightness threshold, wherein the first brightness threshold is higher than the second brightness threshold; when the first number and the second number are higher than the first number threshold, and the third number is lower than the first number threshold, determine a reference image partition in each image partition, determine that the average value of the equivalent backlight brightness of the pixels in the reference image partition is the target backlight brightness of the backlight layer, and the brightness of the reference image partition is higher than the first brightness threshold; when at least one of the first number and the second number is not higher than the first number threshold, and / or the third number is not lower than the first number threshold, determine that the average value of the equivalent backlight brightness of each pixel is the target backlight brightness of the backlight layer.

[0165] In one possible implementation, the determination module 1101 is used to determine the overall backlight brightness of each pixel based on the brightness of each pixel in the image, where the overall backlight brightness of the pixel is used to indicate the brightness required by the dimming module and the brightness required by the backlight layer corresponding to the pixel when the display module is indicated; the quotient of the overall backlight brightness of each pixel and the target backlight brightness is determined as the target brightness of the dimming module corresponding to each pixel; and the quotient of the brightness of each pixel and the overall backlight brightness of each pixel is determined as the target brightness of the display module corresponding to each pixel.

[0166] In one possible implementation, the determination module 1101 is used to determine the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel for each pixel, where i is an integer greater than or equal to 1; and determine the overall backlight brightness of the i-th pixel and the i+1-th pixel based on the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel.

[0167] In a possible implementation, the determination module 1101 is further used to determine the offset amount of the dimming module according to the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, where the offset amount of the dimming module is used to indicate the offset amount of the dimming module corresponding to any pixel when the display screen is viewed at the gaze angle; for the i-th pixel and the i+1-th pixel in each pixel, the dimming modules corresponding to the i-th pixel and the i+1-th pixel are determined according to the i-th pixel, the i+1-th pixel and the dimming module offset amount, where i is an integer greater than or equal to 1.

[0168] When displaying an image, the above-mentioned device distributes the brightness of each pixel in the image to the backlight layer, the display module corresponding to each pixel, and the dimming module corresponding to each pixel. The backlight layer, the display module corresponding to the pixel, and the dimming module corresponding to the pixel jointly provide the brightness of the pixel, so that the backlight layer, the display layer, and the dimming layer jointly share the brightness of the image, thereby ensuring the display effect of the image while reducing the backlight brightness required to be provided by the backlight layer, thereby reducing the power consumption of the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thereby increasing the service life of the display screen.

[0169] It should be understood that the above-mentioned device only uses the division of the above-mentioned functional modules as an example to illustrate when implementing its functions. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the device and method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0170] Fig.12 The structural block diagram of a display device 1200 provided by an exemplary embodiment of the present application is shown. The display device 1200 can be any electronic device product with a display screen. For example, a PC (Personal Computer), a mobile phone, a smart phone, a PDA (Personal Digital Assistant), a wearable device, a PPC (Pocket PC), a tablet computer, a smart car machine, a smart TV, a smart speaker, a smart watch, etc.

[0171] Typically, the display device 1200 includes a processor 1201 and a memory 1202 .

[0172] The processor 1201 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 1201 may be implemented in at least one hardware form of DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array). The processor 1201 may also include a main processor and a coprocessor. The main processor is a processor for processing data in an awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in a standby state. In some embodiments, the processor 1201 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content to be displayed on the display screen. In some embodiments, the processor 1201 may also include an AI (Artificial Intelligence) processor, which is used to process computing operations related to machine learning.

[0173] The memory 1202 may include one or more computer-readable storage media, which may be non-transitory. The memory 1202 may also include a high-speed random access memory, and a non-volatile memory, such as one or more disk storage devices, flash memory storage devices. In some embodiments, the non-transitory computer-readable storage medium in the memory 1202 is used to store at least one instruction, which is used to be executed by the processor 1201 to implement the image display method provided in the method embodiment of the present application.

[0174] In some embodiments, the display device 1200 may further optionally include: a peripheral device interface 1203 and at least one peripheral device. The processor 1201, the memory 1202 and the peripheral device interface 1203 may be connected via a bus or a signal line. Each peripheral device may be connected to the peripheral device interface 1203 via a bus, a signal line or a circuit board. Specifically, the peripheral device includes: at least one of a radio frequency circuit 1204, a display screen 1205, a camera assembly 1206, an audio circuit 1207 and a power supply 1208.

[0175] The peripheral device interface 1203 may be used to connect at least one peripheral device related to I / O (Input / Output) to the processor 1201 and the memory 1202. In some embodiments, the processor 1201, the memory 1202, and the peripheral device interface 1203 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 1201, the memory 1202, and the peripheral device interface 1203 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

[0176] The radio frequency circuit 1204 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The radio frequency circuit 1204 communicates with the communication network and other communication devices through electromagnetic signals. The radio frequency circuit 1204 converts the electrical signal into an electromagnetic signal for transmission, or converts the received electromagnetic signal into an electrical signal. Optionally, the radio frequency circuit 1204 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a user identity module card, and the like. The radio frequency circuit 1204 can communicate with other terminal devices through at least one wireless communication protocol. The wireless communication protocol includes, but is not limited to: the World Wide Web, a metropolitan area network, an intranet, various generations of mobile communication networks (2G, 3G, 4G and 5G), a wireless local area network and / or a WiFi (Wireless Fidelity) network. In some embodiments, the radio frequency circuit 1204 may also include circuits related to NFC (Near Field Communication), which is not limited in this application.

[0177] The display screen 1205 is used to display a UI (User Interface). The UI may include graphics, text, icons, videos, and any combination thereof. When the display screen 1205 is a touch display screen, the display screen 1205 also has the ability to collect touch signals on the surface or above the surface of the display screen 1205. The touch signal can be input to the processor 1201 as a control signal for processing. At this time, the display screen 1205 can also be used to provide virtual buttons and / or virtual keyboards, also known as soft buttons and / or soft keyboards. In some embodiments, the display screen 1205 can be one, arranged on the front panel of the display device 1200; in other embodiments, the display screen 1205 can be at least two, respectively arranged on different surfaces of the display device 1200 or in a folding design; in other embodiments, the display screen 1205 can be a flexible display screen, arranged on a curved surface or a folding surface of the display device 1200. Even, the display screen 1205 can also be arranged as a non-rectangular irregular figure, that is, a special-shaped screen. The display screen 1205 can be made of materials such as LCD (Liquid Crystal Display) and OLED (Organic Light-Emitting Diode).

[0178] The camera assembly 1206 is used to capture images or videos. Optionally, the camera assembly 1206 includes a front camera and a rear camera. Typically, the front camera is arranged on the front panel of the display device 1200, and the rear camera is arranged on the back of the display device 1200. In some embodiments, there are at least two rear cameras, which are any one of a main camera, a depth of field camera, a wide-angle camera, and a telephoto camera, so as to realize the fusion of the main camera and the depth of field camera to realize the background blur function, the fusion of the main camera and the wide-angle camera to realize panoramic shooting and VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, the camera assembly 1206 may also include a flash. The flash can be a monochrome temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cold light flash, which can be used for light compensation at different color temperatures.

[0179] The audio circuit 1207 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, and convert the sound waves into electrical signals and input them into the processor 1201 for processing, or input them into the radio frequency circuit 1204 to achieve voice communication. For the purpose of stereo acquisition or noise reduction, there may be multiple microphones, which are respectively arranged at different parts of the display device 1200. The microphone may also be an array microphone or an omnidirectional acquisition microphone. The speaker is used to convert the electrical signal from the processor 1201 or the radio frequency circuit 1204 into sound waves. The speaker may be a traditional film speaker or a piezoelectric ceramic speaker. When the speaker is a piezoelectric ceramic speaker, it can not only convert the electrical signal into sound waves audible to humans, but also convert the electrical signal into sound waves inaudible to humans for purposes such as ranging. In some embodiments, the audio circuit 1207 may also include a headphone jack.

[0180] The power supply 1208 is used to power the various components in the display device 1200. The power supply 1208 can be an alternating current, a direct current, a disposable battery, or a rechargeable battery. When the power supply 1208 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged through a wired line, and a wireless rechargeable battery is a battery that is charged through a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0181] In some embodiments, the display device 1200 further includes one or more sensors 1209 , including but not limited to: an acceleration sensor 1210 , a gyroscope sensor 1211 , a pressure sensor 1212 , an optical sensor 1213 , and a proximity sensor 1214 .

[0182] The acceleration sensor 1210 can detect the magnitude of acceleration on the three coordinate axes of the coordinate system established by the display device 1200. For example, the acceleration sensor 1210 can be used to detect the components of gravity acceleration on the three coordinate axes. The processor 1201 can control the display screen 1205 to display the user interface in a horizontal view or a vertical view according to the gravity acceleration signal collected by the acceleration sensor 1210. The acceleration sensor 1210 can also be used to collect motion data of games or users.

[0183] The gyro sensor 1211 can detect the body direction and rotation angle of the display device 1200, and the gyro sensor 1211 can cooperate with the acceleration sensor 1210 to collect the user's 3D actions on the display device 1200. The processor 1201 can implement the following functions based on the data collected by the gyro sensor 1211: motion sensing (such as changing the UI according to the user's tilt operation), image stabilization during shooting, game control, and inertial navigation.

[0184] The pressure sensor 1212 can be set on the side frame of the display device 1200 and / or the lower layer of the display screen 1205. When the pressure sensor 1212 is set on the side frame of the display device 1200, it can detect the user's holding signal of the display device 1200, and the processor 1201 performs left and right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 1212. When the pressure sensor 1212 is set on the lower layer of the display screen 1205, the processor 1201 controls the operability controls on the UI interface according to the user's pressure operation on the display screen 1205. The operability controls include at least one of a button control, a scroll bar control, an icon control, and a menu control.

[0185] The optical sensor 1213 is used to collect the ambient light intensity. In one embodiment, the processor 1201 can control the display brightness of the display screen 1205 according to the ambient light intensity collected by the optical sensor 1213. Specifically, when the ambient light intensity is high, the display brightness of the display screen 1205 is increased; when the ambient light intensity is low, the display brightness of the display screen 1205 is reduced. In another embodiment, the processor 1201 can also dynamically adjust the shooting parameters of the camera assembly 1206 according to the ambient light intensity collected by the optical sensor 1213.

[0186] The proximity sensor 1214, also called a distance sensor, is usually disposed on the front panel of the display device 1200. The proximity sensor 1214 is used to collect the distance between the user and the front of the display device 1200. In one embodiment, when the proximity sensor 1214 detects that the distance between the user and the front of the display device 1200 is gradually decreasing, the processor 1201 controls the display screen 1205 to switch from the screen-on state to the screen-off state; when the proximity sensor 1214 detects that the distance between the user and the front of the display device 1200 is gradually increasing, the processor 1201 controls the display screen 1205 to switch from the screen-off state to the screen-on state.

[0187] Those skilled in the art will understand that Fig.12 The structure shown in the figure does not constitute a limitation on the display device 1200, and may include more or less components than those shown in the figure, or combine certain components, or adopt a different component arrangement.

[0188] An embodiment of the present application also provides a chip, which includes a processor and a memory, wherein the memory is used to store at least one program, and the at least one program is loaded by the processor and executes the image display method of any of the above implementation methods.

[0189] An embodiment of the present application further provides a computer-readable storage medium, in which at least one program code is stored. The at least one program code is loaded and executed by a processor to implement the image display method of any of the above implementation modes.

[0190] Optionally, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc.

[0191] An embodiment of the present application also provides a computer program or a computer program product, in which at least one computer instruction is stored. The at least one computer instruction is loaded and executed by a processor to enable a computer to implement any of the above-mentioned image display methods.

[0192] It should be noted that the information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.) and signals involved in this application are all authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions. For example, the images involved in this application were obtained with full authorization.

[0193] It should be understood that the "at least one" mentioned herein refers to one or more, and "multiple" refers to two or more. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second" and the like are used to distinguish the same items or similar items with basically the same functions and effects. Those skilled in the art can understand that the words "first", "second" and the like do not limit the quantity and execution order, and the words "first", "second" and the like do not limit them to be necessarily different.

[0194] The above description is only an exemplary embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. An image display method, characterized in that: The method comprises: Determining an equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, wherein the equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel; Determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel; Determining, according to the brightness of each pixel in the image and the target backlight brightness, a target brightness of a dimming module corresponding to each pixel and a target brightness of a display module corresponding to each pixel; The image is displayed according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

2. The method according to claim 1, characterized in that The step of determining the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image comprises: For any pixel among the pixels, determine a first image partition and a second image partition adjacent to the first image partition, where the first image partition is the image partition where the any pixel is located; An equivalent backlight brightness of the any pixel is determined according to the any pixel, the brightness of the first image subarea, and the brightness of the second image subarea.

3. The method according to claim 2, characterized in that The determining the equivalent backlight brightness of any pixel according to the brightness of the any pixel, the brightness of the first image subarea, and the brightness of the second image subarea includes: Determine a first backlight partition corresponding to the first image partition and a second backlight partition corresponding to the second image partition in the backlight layer, wherein one backlight partition corresponds to one light-emitting component, and the maximum brightness that can be emitted by the light-emitting component of the backlight partition is the brightness of the image partition corresponding to the backlight partition; Determine a first expected brightness according to a first distance and a maximum brightness that can be emitted by the light-emitting component of the first backlight partition, wherein the first expected brightness is the brightness provided by the light-emitting component of the first backlight partition to the any pixel, the first distance is the distance from a first position to the light-emitting component of the first backlight partition, and the first position is the same position in the backlight layer as the position of the any pixel in the image; Determine a second expected brightness according to a second distance and a maximum brightness that can be emitted by the light-emitting component of the second backlight partition, wherein the second expected brightness is the brightness provided by the light-emitting component of the second backlight partition to the any pixel, and the second distance is the distance from the first position to the light-emitting component of the second backlight partition; The sum of the first expected brightness and the second expected brightness is determined as the equivalent backlight brightness of any one pixel.

4. The method according to claim 3, characterized in that The determining the first expected brightness according to the first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight subarea includes: Determine a brightness ratio corresponding to the first distance; The product of the brightness ratio and the maximum brightness that can be emitted by the light-emitting component of the first backlight subarea is taken as the first expected brightness.

5. The method according to any one of claims 1 to 4, characterized in that: Before determining the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, the method further includes: determining the brightness of each pixel in the image; The brightness of each image partition is determined according to the brightness of the pixels included in each image partition.

6. The method according to claim 5, characterized in that The step of determining the brightness of each image partition according to the brightness of the pixels included in each image partition comprises: For any image partition among the image partitions, determining the maximum brightness and average brightness of pixels included in the image partition; The brightness of any image partition is determined according to the maximum brightness and the average brightness of the pixels included in any image partition.

7. The method according to any one of claims 1 to 4, characterized in that: The step of determining the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel includes: Determine, according to the brightness of each image partition, a first number of image partitions having brightness higher than a first brightness threshold, a second number of image partitions having brightness lower than a second brightness threshold, and a third number of image partitions having brightness between the first brightness threshold and the second brightness threshold, wherein the first brightness threshold is higher than the second brightness threshold; In a case where the first number and the second number are higher than a first number threshold, and the third number is lower than the first number threshold, determining a reference image partition in each of the image partitions, determining an average value of equivalent backlight brightness of pixels in the reference image partition as a target backlight brightness of the backlight layer, and the brightness of the reference image partition is higher than the first brightness threshold; When at least one of the first number and the second number is not higher than the first number threshold, and / or the third number is not lower than the first number threshold, the average value of the equivalent backlight brightness of each pixel is determined as the target backlight brightness of the backlight layer.

8. The method according to any one of claims 1 to 4, characterized in that: The step of determining the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel according to the brightness of each pixel in the image and the target backlight brightness includes: Determine the overall backlight brightness of each pixel according to the brightness of each pixel in the image, wherein the overall backlight brightness of the pixel is used to indicate the brightness required by the dimming module corresponding to the pixel and the brightness required by the backlight layer when displaying the pixel; Determine the quotient of the overall backlight brightness of each pixel and the target backlight brightness as the target brightness of the dimming module corresponding to each pixel; The quotient of the brightness of each pixel and the overall backlight brightness of each pixel is determined as the target brightness of the display module corresponding to each pixel.

9. The method according to claim 8, characterized in that Determining the overall backlight brightness of each pixel according to the brightness of each pixel in the image includes: For an i-th pixel and an i+1-th pixel among the pixels, determine a maximum brightness and an average brightness among the brightness of the i-th pixel and the brightness of the i+1-th pixel, where i is an integer greater than or equal to 1; The overall backlight brightness of the i-th pixel and the i+1-th pixel is determined according to the maximum brightness and the average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel.

10. The method according to claim 8, characterized in that The method further comprises: Determine the dimming module offset amount according to the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, wherein the dimming module offset amount is used to indicate the offset amount of the dimming module corresponding to any pixel when the display screen is viewed at the gaze angle; For the i-th pixel and the i+1-th pixel among the pixels, the dimming modules corresponding to the i-th pixel and the i+1-th pixel are determined according to the i-th pixel, the i+1-th pixel and the offset quantity of the dimming module, where i is an integer greater than or equal to 1.

11. An image display device, characterized in that: The device comprises: A determination module, used to determine the equivalent backlight brightness of each pixel in the image according to the brightness of each image partition in the image, wherein the equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel; The determination module is further used to determine the target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel; The determination module is further used to determine the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel according to the brightness of each pixel in the image and the target backlight brightness; The display module is used to display the image according to the target backlight brightness, the target brightness of the dimming module corresponding to each pixel, and the target brightness of the display module corresponding to each pixel.

12. A chip, characterized in that: The chip includes a processor and a memory, the memory is used to store at least one program, and the at least one program is loaded by the processor to execute the image display method according to any one of claims 1 to 10.

13. A display device, characterized in that: The display device includes a display screen having a backlight layer, a dimming layer and a display layer, a processor and a memory, wherein at least one program code is stored in the memory, and the at least one program code is loaded and executed by the processor so that the display device implements the image display method as described in any one of claims 1 to 10.

14. A computer-readable storage medium, characterized in that: At least one program code is stored in the computer-readable storage medium, and the at least one program code is loaded and executed by the processor to implement the image display method according to any one of claims 1 to 10.

Images