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

Abstract

The present application discloses an image display method, apparatus, chip, device, and computer-readable storage medium, belonging to the field of display technology. The method includes: determining the equivalent backlight brightness of each pixel in the image based on 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; determining the target backlight brightness of the backlight layer based on the equivalent backlight brightness of each pixel; determining the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel based on the brightness of each pixel in the image and the target backlight brightness; displaying the image based on 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. This method reduces the power consumption of the backlight layer while ensuring the display effect of the image.

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 type of 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 cells, and the dimming layer includes multiple dimming cells.

[0003] In the related art, when an image needs to be displayed 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, apparatus, chip, device, and computer-readable storage medium, which can be used to solve problems in related technologies. The technical solution is as follows:

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

[0006] determining, based on the brightness of each image partition in the image, an equivalent backlight brightness of each pixel 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 a 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, determining 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, determining the equivalent backlight brightness of any pixel according to the any pixel, the brightness of the first image subarea, and the brightness of the second image subarea 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 each 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] determining a first expected brightness based on a first distance and a maximum brightness that can be emitted by the light-emitting components of the first backlight subarea, where the first expected brightness is the brightness provided by the light-emitting components of the first backlight subarea to the any pixel, the first distance is the distance from a first position to the light-emitting components of the first backlight subarea, and the first position is the same position in the backlight layer as the position of the any pixel in the image;

[0016] determining a second expected brightness based on the second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight subarea, where the second expected brightness is the brightness provided by the light-emitting component of the second backlight subarea to the any pixel, and the second distance is the distance from the first position to the light-emitting component of the second backlight subarea;

[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] determining 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 used as the first expected brightness.

[0021] 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, 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, 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 a maximum brightness and an average brightness of pixels included in the image partition;

[0026] The brightness of any image partition is determined according to the maximum brightness and average brightness of pixels included in the 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] determining, based on the brightness of the respective image partitions, 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] When 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 among 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, based on 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] Determining 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, 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, determining a maximum brightness and an average brightness among the brightnesses of the i-th pixel and 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] Determining a dimming module offset amount based on a gaze angle, a width of the dimming module, and a distance between the display layer and the dimming layer, wherein the dimming module offset amount indicates an 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, comprising:

[0042] a determination module, configured to determine an equivalent backlight brightness of each pixel in the image based on 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 determining module is further configured to determine a target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel;

[0044] The determination module is further configured to determine, based on 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;

[0045] The display module is configured 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 one 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, where 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 based on a first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition, where 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 position in the backlight layer that is the same as the position of the any pixel in the image; determine a second expected brightness based on a second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight partition, where 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; and determine that the sum of the first expected brightness and the second expected brightness is the equivalent backlight brightness of the any pixel.

[0048] In a possible implementation, the determination module is configured 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, 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 one 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, where 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 one 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 one possible implementation, the determination module is further used to determine the offset number of the dimming module based on the gaze angle, the width of the dimming module, and the fitting distance between the display layer and the dimming layer, where the dimming module offset number is used to indicate the offset number of the dimming module corresponding to any pixel when viewing the display screen 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 based on the i-th pixel, the i+1-th pixel, and the dimming module offset number, 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 to enable the display device to implement any of the above-mentioned image display methods.

[0057] On the other hand, a computer-readable storage medium is provided, in which at least one program code is stored. 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 further 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 solutions provided by the embodiments of the present application bring 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 consumed by the backlight layer when displaying the image, avoiding the problem of excessively high 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 following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

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

[0063] Figure 2 This is a schematic structural 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 in an embodiment of the present application;

[0066] Figure 5 Schematic diagram of a correspondence between distance and brightness ratio provided in an embodiment of the present application;

[0067] Figure 6 This 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 This 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 This is a schematic diagram of a dimming module for determining a pixel corresponding to an embodiment of the present application;

[0070] Figure 9 is a schematic diagram of determining a gaze angle provided by an embodiment of the present application;

[0071] Figure 10 This is a flowchart of another image display method provided by an embodiment of the present application;

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

[0073] Figure 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 this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

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

[0076] Figure 1 This 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 by 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 This 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 200,000:1, 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 are tightly attached to each other, and 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, thereby realizing 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] Alternatively, 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 computer, 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 this application, should also be included in the scope of protection of this application and 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 by 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 one 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. 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 has color information (RGB information), which 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 each pixel, determining the maximum value of the red component, the green component, and the blue component of each pixel as the brightness of the pixel. Alternatively, the brightness of each pixel is determined based on the red component, the green component, and the blue component of each 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 can 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 the brightness of each image partition may be determined based on 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 based on 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; and determining the brightness of each image partition based on 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; and 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 one possible implementation, the process of determining the brightness of each image partition based on the maximum brightness and average brightness of the pixels included in each image partition includes: determining the brightness of each image partition based on 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 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. For example, 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 in row i and column j, B max is the maximum brightness of the pixels in the image partition of row i and column j, B avg is the average brightness of the pixels included in the image partition in the i-th row and j-th column, α is the maximum brightness weight, and β is the average brightness weight. Here, i is an integer greater than or equal to 1 and no 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 no greater than the number of image partitions in the vertical direction of the image.

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

[0097] Optionally, the process of determining the equivalent backlight brightness of any pixel, the brightness of the first image partition and the brightness of the 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 based on the 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 by the light-emitting component of the first backlight partition to the pixel, 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 based on 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 by the light-emitting component of the second backlight partition to the pixel, and the second distance being the distance from the first position to the light-emitting component of the second backlight partition; and 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 object capable of emitting light, and the embodiment of the present application does not limit this.

[0099] For example, if any pixel is located at position (10, 10) among all pixels included in the image, that is, if any pixel is located at position (10, 10) in the image, then 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 subarea is the length of a line segment starting at the first position and ending at the light-emitting component of the first backlight subarea.

[0100] The process of determining the first desired brightness based on the first distance and the maximum brightness that can be emitted by the light-emitting components of the first backlight partition is similar to the process of determining the second desired brightness based on the second distance and the maximum brightness that can be emitted by the light-emitting components of the second backlight partition. The embodiments of the present application only use the process of determining the first desired brightness based on the first distance and the maximum brightness that can be emitted by the light-emitting components of the first backlight partition as an example. Optionally, the process of determining the first desired brightness based on the first distance and the maximum brightness that can be emitted by the light-emitting components of the first backlight partition includes: determining a brightness ratio corresponding to the first distance; and multiplying the brightness ratio by the maximum brightness that can be emitted by the light-emitting components of the first backlight partition as the first desired 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 This 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 one possible implementation, the process of determining the target backlight brightness of the backlight layer based on the equivalent backlight brightness of each pixel includes: determining, based on the brightness of each image partition, a first number of image partitions having brightness above a first brightness threshold, a second number of image partitions having brightness below 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; if 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 among the image partitions, and determining the average 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. If 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 of the equivalent backlight brightness of the pixels 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 are not limited in this embodiment of the present application. 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 is not limited in this embodiment of the present application. 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 using 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 one 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 based on the brightness of each pixel in the image and the target backlight brightness includes: determining 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 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 the pixel; and 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 the 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 based on the brightness of each pixel in the image includes: for an i-th pixel and an i+1-th pixel among the pixels, determining a maximum brightness and an 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 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, where 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 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 includes: determining the overall backlight brightness of the i-th pixel and the i+1-th pixel based on the maximum brightness, the average brightness, the maximum brightness weight, and the 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 and the target brightness of the display module corresponding to each pixel, it is necessary to determine the corresponding dimming module and display module for each pixel. Because the image resolution 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. Furthermore, the correspondence between image pixels and display modules in the display layer does not change with changes in 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 and the display layer are bonded together. Due to the bonding process, there will be 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 based on the viewing 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 subsequently 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 This 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, where 601 is blue and 602 is red.

[0123] like Figure 7 This is a schematic diagram of a screen content loss mechanism, screen content loss 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, thus resulting in the phenomenon of screen content loss. Figure 7 (2) in the figure 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 one possible implementation, the process of determining the dimming module corresponding to a pixel includes: determining a dimming module offset number based on a gaze angle, a width of the dimming module, and a distance between the display layer and the dimming layer, the dimming module offset number being used to indicate the offset number of the dimming module corresponding to any pixel when the display screen is viewed at the gaze angle; and determining, for each pixel, the dimming modules corresponding to the i-th pixel and the i+1-th pixel based on the i-th pixel, the i+1-th pixel, and the dimming module offset number, where 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 is not limited in the present embodiment.

[0128] like Figure 8 : This is a schematic diagram of a dimming module for determining the corresponding 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 pixel corresponding to display module 0 and the pixel 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 do 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 described in detail here.

[0129] In one possible implementation, before determining the dimming module offset based on the gaze angle, the width of the dimming module, and the distance between the display layer and the dimming layer, the gaze angle must be determined. This embodiment of the present application does not limit the method for determining the gaze angle. Optionally, determining the gaze angle includes: capturing an image including the eye, analyzing the image including the eye to determine the spatial position of the eye and the position at which the eye is gazing at the screen; and determining the gaze angle based on the spatial position of the eye and the position at which the eye is gazing at the screen.

[0130] The image including the eye is captured by a built-in image capture device on the display screen. The image capture device includes, but is not limited to, a camera. Determining the gaze angle based on the spatial position of the eye and the position of the screen the eye is gazing at includes determining the angle between a line segment between the spatial position of the eye and the position the eye is gazing at on the screen and a first ray as the gaze angle. The starting point of the first ray is the position the eye is gazing at on the screen, and the first ray is parallel to a longitudinal line of the display screen.

[0131] like Figure 9 901 is a schematic diagram of determining the gaze angle provided by an embodiment of the present application, wherein 902 is a display screen, 903 is the spatial position of the eye, 904 is the position where the eye is looking 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 determining the target backlight brightness of the backlight layer in the above step 402 and determining the target brightness of the dimming module corresponding to each pixel and the target brightness of the display module corresponding to each pixel 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 consumed by the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thus improving 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 brightness of the pixel, and there will be no color deviation, missing image content, and halo problems, which can further improve the display effect of the image.

[0136] Next, please combine Figure 10 The image display method provided in the embodiment of the present application is explained again by way of example. Figure 10 This is a flow chart of another image display method provided by an embodiment of the present application. Figure 10 , the method includes 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 and 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. Please refer to the content of the above step 401 for details and 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. Please refer to the content of the above step 401 for details and 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. Please refer to the content of the above step 402 for details and 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 and 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 one possible implementation, the process of determining the target brightness of the dimming module corresponding to each pixel based on the overall backlight brightness and target backlight brightness of each pixel has been described in the above step 403. For details, please see 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 and 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 based on 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 sum up, in the embodiment 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 consumed by the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thus improving the service life of the display screen.

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

[0155] A determination module 1101 is configured to determine an equivalent backlight brightness of each pixel in the image based on the brightness of each image partition in the image, where 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 configured to determine a target backlight brightness of the backlight layer according to the equivalent backlight brightness of each pixel;

[0157] The determination module 1101 is further configured 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 configured 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 one possible implementation, a determination module 1101 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, where 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 based on a first distance and the maximum brightness that can be emitted by the light-emitting component of the first backlight partition, where the first expected brightness is the brightness provided by the light-emitting component of the first backlight partition to any pixel, and 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; determine a second expected brightness based on the second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight partition, where 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 determine that the sum of the first expected brightness and the second expected brightness is the equivalent backlight brightness of any pixel.

[0161] In a possible implementation, the determination module 1101 is configured 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 one possible implementation, the determination module 1101 is used to determine the maximum brightness and average brightness of the pixels included in any image partition among the respective image partitions; 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 one 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, where 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, 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 corresponding to the pixel and the brightness required by the backlight layer 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 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 average brightness of the brightness of the i-th pixel and the brightness of the i+1-th pixel.

[0167] In one possible implementation, the determination module 1101 is further used to determine the dimming module offset amount based on 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 amount is used to indicate the offset amount of the dimming module corresponding to any pixel when viewing the display screen at the gaze angle; for the i-th pixel and the i+1-th pixel in each pixel, the dimming module corresponding to the i-th pixel and the i+1-th pixel is determined based on 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 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. While ensuring the display effect of the image, the backlight brightness required to be provided by the backlight layer can be reduced, thereby reducing the power consumption consumed by the backlight layer when displaying the image, avoiding the problem of excessive surface temperature of the display screen, and thus improving the service life of the display screen.

[0169] It should be understood that the above-mentioned device is merely an example of the division of the above-mentioned functional modules 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 can be 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 are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0170] Figure 12 The following is a block diagram of a display device 1200 according to an exemplary embodiment of the present application. The display device 1200 can be any electronic device with a display screen, such as a PC (Personal Computer), a mobile phone, a smartphone, a PDA (Personal Digital Assistant), a wearable device, a Pocket PC (Personal Computer), a tablet computer, a smart car computer, a smart TV, a smart speaker, or a smart watch.

[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), or 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 the awake state, also known as a CPU (Central Processing Unit); the coprocessor is a low-power processor for processing data in the 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 high-speed random access memory and non-volatile memory, such as one or more disk storage devices and 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 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 optionally include a peripheral device interface 1203 and at least one peripheral device. The processor 1201, memory 1202, and peripheral device interface 1203 may be connected via a bus or signal lines. Each peripheral device may be connected to the peripheral device interface 1203 via a bus, signal lines, or circuit boards. Specifically, the peripheral device may include 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 can be used to connect at least one I / O (Input / Output)-related peripheral device 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 can be implemented on separate chips or circuit boards, which is not limited in this embodiment.

[0176] The RF circuit 1204 is used to receive and transmit RF (Radio Frequency) signals, also known as electromagnetic signals. The RF circuit 1204 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuit 1204 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the RF 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 RF circuit 1204 can communicate with other terminal devices via at least one wireless communication protocol. Such wireless communication protocols include, but are not limited to, the World Wide Web, metropolitan area networks, intranets, various generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and / or WiFi (Wireless Fidelity) networks. In some embodiments, the RF circuit 1204 may also include circuitry related to Near Field Communication (NFC), 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 screen display, 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 as a control signal to the processor 1201 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, set on the front panel of the display device 1200; in other embodiments, the display screen 1205 can be at least two, respectively set 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, set on the curved surface or folding surface of the display device 1200. Even the display screen 1205 can be set to a non-rectangular irregular shape, 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 single-color 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 to be input into the processor 1201 for processing, or input into the radio frequency circuit 1204 to achieve voice communication. For the purpose of stereo acquisition or noise reduction, there can be multiple microphones, which are respectively arranged at different parts of the display device 1200. The microphone can 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 can be a traditional thin 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] Power supply 1208 is used to power the various components of display device 1200. Power supply 1208 can be AC ​​power, DC power, a disposable battery, or a rechargeable battery. When 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 via a wired line, while a wireless rechargeable battery is a battery that is charged via 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 accelerometer 1210 can detect the magnitude of acceleration along the three coordinate axes of the coordinate system established by the display device 1200. For example, the accelerometer 1210 can be used to detect the components of gravity acceleration along the three coordinate axes. The processor 1201 can control the display screen 1205 to display the user interface in a landscape or portrait view based on the gravity acceleration signal collected by the accelerometer 1210. The accelerometer 1210 can also be used to collect game or user motion data.

[0183] The gyro sensor 1211 can detect the orientation and rotation angle of the display device 1200. It can also work with the accelerometer 1210 to collect 3D motions of the user on the display device 1200. Based on the data collected by the gyro sensor 1211, the processor 1201 can implement the following functions: motion sensing (for example, changing the UI based on the user's tilt), 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 grip signal of the display device 1200, and the processor 1201 performs left and right hand recognition or shortcut operations based on the grip 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 operable controls on the UI interface based on the user's pressure operation on the display screen 1205. Operable controls include at least one of button controls, scroll bar controls, icon controls, and menu controls.

[0185] Optical sensor 1213 is used to detect ambient light intensity. In one embodiment, processor 1201 can control the display brightness of display screen 1205 based on the ambient light intensity detected by optical sensor 1213. Specifically, when the ambient light intensity is high, the display brightness of display screen 1205 is increased; when the ambient light intensity is low, the display brightness of display screen 1205 is decreased. In another embodiment, processor 1201 can also dynamically adjust the shooting parameters of camera assembly 1206 based on the ambient light intensity detected by optical sensor 1213.

[0186] Proximity sensor 1214, also known as a distance sensor, is typically located on the front panel of display device 1200. Proximity sensor 1214 is used to detect the distance between the user and the front of display device 1200. In one embodiment, when proximity sensor 1214 detects that the distance between the user and the front of display device 1200 is gradually decreasing, processor 1201 controls display screen 1205 to switch from the screen-on state to the screen-off state. When proximity sensor 1214 detects that the distance between the user and the front of display device 1200 is gradually increasing, processor 1201 controls display screen 1205 to switch from the screen-off state to the screen-on state.

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

[0188] An embodiment of the present application further 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 implementations.

[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, or the like.

[0191] An embodiment of the present application further provides a computer program or computer program product, wherein the computer program or computer program product stores at least one computer instruction, and 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, storage, and display, 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 "a plurality of" 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 merely a description of the association relationship of 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 a clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, words such as "first" and "second" are used to distinguish between identical or similar items with substantially the same functions and effects. Those skilled in the art will understand that words such as "first" and "second" do not limit the quantity and execution order, and words such as "first" and "second" do not necessarily limit them to be different.

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

Claims

1. An image display method, characterized in that: The method comprises: determining, based on the brightness of each image partition in the image, an equivalent backlight brightness of each pixel in the image, wherein the equivalent backlight brightness of the pixel is used to indicate the backlight brightness required when displaying the pixel; determining, based on the brightness of the respective image partitions, 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; When 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 among the image partitions, determining an average value of equivalent backlight brightness of pixels in the reference image partition as a target backlight brightness of a backlight layer, and the brightness of the reference image partition is higher than the first brightness threshold; Determining 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; Determining a quotient of the brightness of each pixel and the overall backlight brightness of each pixel as a target brightness of the 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 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 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 the any pixel according to 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 each 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 based on a first distance and a maximum brightness that can be emitted by the light-emitting components of the first backlight subarea, where the first expected brightness is the brightness provided by the light-emitting components of the first backlight subarea to the any pixel, the first distance is the distance from a first position to the light-emitting components of the first backlight subarea, and the first position is the same position in the backlight layer as the position of the any pixel in the image; determining a second expected brightness based on the second distance and the maximum brightness that can be emitted by the light-emitting component of the second backlight subarea, where the second expected brightness is the brightness provided by the light-emitting component of the second backlight subarea to the any pixel, and the second distance is the distance from the first position to the light-emitting component of the second backlight subarea; 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 of 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: determining 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 used 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 based on 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 determining the brightness of each image partition according to the brightness of the pixels included in each image partition includes: For any image partition among the image partitions, determining a maximum brightness and an average brightness of pixels included in the image partition; The brightness of any image partition is determined according to the maximum brightness and average brightness of pixels included in the any image partition.

7. The method according to any one of claims 1 to 4, characterized in that: The method further comprises: 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 claim 1, 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, determining a maximum brightness and an average brightness among the brightnesses of the i-th pixel and 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.

9. The method according to claim 1, characterized in that The method further comprises: Determining a dimming module offset amount based on a gaze angle, a width of the dimming module, and a distance between the display layer and the dimming layer, wherein the dimming module offset amount indicates an 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.

10. An image display device, characterized in that: The device comprises: a determination module, configured to determine an equivalent backlight brightness of each pixel in the image based on 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 configured to determine, based on the brightness of each of the image partitions, 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; if 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, determine a reference image partition among the image partitions, determine 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; The determination module is further configured to determine, based on the brightness of each pixel in the image, an overall backlight brightness of each pixel, the overall backlight brightness of the pixel being used to indicate the brightness required by the dimming module and the backlight layer corresponding to the pixel 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; and determine 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 display module is configured 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.

11. 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 9.

12. 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 9.

13. 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 9.

Images