Display equipment control method and device, equipment, storage medium and program product

Abstract

The embodiment of the invention provides a display equipment control method and device, equipment, a storage medium and a program product. Under the condition that the difference value between the gray value of a first light source in a first color area and the gray value of a corresponding light source in an adjacent second color area is larger than or equal to a preset threshold value, the gray value of the first light source in the first color area is adjusted. Determining a transition area of the first color area and the second color area, and controlling the difference value between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be smaller than a preset threshold value, thereby reducing the color difference between the transition area and the second color area. The influence of the first color area on the second color area is reduced, color crossing is reduced, and the display effect and the visual effect are improved.

Description

Technical Field

[0001] The present application relates to the field of displays, and in particular, to a control method, device, equipment, storage medium and program product for a display device. Background Art

[0002] With the development of display technology, RGB (Red, Green, Blue) backlights are widely used in various display devices, which can rely on RGB backlights to provide rich color performance and meet users' requirements for the display quality of images and videos.

[0003] In an RGB backlight display device, various colors can be displayed on the display screen through different combinations of red light sources, green light sources and blue light sources. When the display screen needs to display two or more colors, color bleeding may occur at the boundary between adjacent two colors, affecting the display effect. Summary of the Invention

[0004] Embodiments of the present application provide a control method, device, equipment, storage medium and program product for a display device, so as to reduce the influence of color bleeding and improve the display effect.

[0005] In a first aspect, an embodiment of the present application provides a control method for a display device, including:

[0006] When the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the second color area is greater than or equal to a preset threshold, determining a transition area between the first color area and the second color area; wherein, the first color area and the second color area are adjacent areas;

[0007] Controlling the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be less than the preset threshold.

[0008] In a possible implementation manner, the controlling the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be less than the preset threshold includes:

[0009] Dividing the transition area into multiple partitions;

[0010] In the direction close to the second color area, sequentially increasing the gray value of the second light source in each partition, and the difference between the gray value of the second light source in each partition and the gray value of the corresponding light source in the second color area is less than the preset threshold.

[0011] In a possible implementation manner, the controlling the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be less than the preset threshold includes:

[0012] The power of the second light source in the transition area is adjusted so that a difference between a grayscale value of the second light source in the transition area and a grayscale value of a corresponding light source in the second color area is less than the preset threshold.

[0013] In a possible implementation, determining a transition region between the first color region and the second color region includes:

[0014] Detecting a junction boundary between the first color area and the second color area;

[0015] The transition area is obtained by taking the intersection boundary as a starting boundary and extending toward at least one side of the intersection boundary.

[0016] In a possible implementation, starting from the intersection boundary and extending toward at least one side of the intersection boundary to obtain the transition area includes:

[0017] When the second color area is a white area, starting from the intersection boundary and extending toward the first color area, the transition area is obtained;

[0018] In the case where the second color area is a white area, starting from the intersection boundary and extending toward the second color area to obtain the transition area;

[0019] In the case that neither the first color area nor the second color area is a white area, the transition area is obtained by taking the intersection boundary as a starting point and extending toward the first color area or the second color area.

[0020] In a possible implementation, controlling the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be less than the preset threshold includes:

[0021] When expanding to the first color area to obtain the transition area, the grayscale value of the second light source in the transition area is increased so that the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area is less than the preset threshold.

[0022] In a possible implementation, controlling the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be less than the preset threshold includes:

[0023] When expanding towards the second color region to obtain the transition region, reduce the gray value of the second light source in the transition region so that the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region is less than the preset threshold.

[0024] In a possible implementation, the method further includes:

[0025] Perform brightness correction on the transition region;

[0026] And / or, perform filtering processing on the transition region.

[0027] In a second aspect, an embodiment of the present application provides a control device for a display device, including:

[0028] A determination module, configured to determine the transition region between the first color region and the second color region when the difference between the gray value of the first light source in the first color region and the gray value of the corresponding light source in the second color region is greater than or equal to a preset threshold; wherein, the first color region and the second color region are adjacent regions;

[0029] A control module, configured to control the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region to be less than the preset threshold.

[0030] In a third aspect, an embodiment of the present application provides an electronic device, including: a memory, a processor;

[0031] The memory stores computer execution instructions;

[0032] The processor executes the computer execution instructions stored in the memory, so that the processor executes the above first aspect and / or various possible implementation manners of the first aspect.

[0033] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, in which computer execution instructions are stored, and when the computer execution instructions are executed by a processor, they are used to implement the above first aspect and / or various possible implementation manners of the first aspect.

[0034] In a fifth aspect, an embodiment of the present application provides a computer program product, including a computer program, and when the computer program is executed by a processor, it implements the above first aspect and / or various possible implementation manners of the first aspect.

[0035] The control method, device, equipment, storage medium and program product of the display device provided by the embodiments of the present application determine the transition area between the first color area and the second color area when the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the adjacent second color area is greater than or equal to a preset threshold, and control the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be less than the preset threshold, so as to reduce the color difference between the transition area and the second color area, reduce the influence of the first color area on the second color area, reduce color bleeding, and improve the display effect and visual effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0037] Figure 1 It is a schematic structural diagram of the display device provided by the present application;

[0038] Figure 2 It is a schematic flowchart of the control method of the display device provided by the present application Figure 1 ;

[0039] Figure 3 It is a schematic diagram of the color area provided by the present application Figure 1 ;

[0040] Figure 4 It is a schematic flowchart of the control method of the display device provided by the present application Figure 2 ;

[0041] Figure 5 It is a schematic diagram of the color area provided by the present application Figure 2 ;

[0042] Figure 6 It is a schematic diagram of the color area provided by the present application Figure 3 ;

[0043] Figure 7 It is a schematic flowchart of the control method of the display device provided by the present application Figure 3 ;

[0044] Figure 8 It is a schematic diagram of the partition of the transition area provided by the present application;

[0045] Figure 9 It is a schematic structural diagram of the control device of the display device provided by the present application;

[0046] Figure 10 It is a schematic structural diagram of the electronic device provided by the present application.

[0047] Through the above-mentioned drawings, specific embodiments of the present application have been shown, and there will be more detailed descriptions hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. Detailed Description of the Embodiments

[0048] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0049] As Figure 1 shown, the display device includes a backlight unit 100 (Back light Unit, BLU), a liquid crystal display panel (Liquid Crystal Display, LCD) 200, a backlight controller 300, a timing controller (Timing Controller, TCON) 400, and a system-on-chip (System on Chip, SoC) 500. Among them, the backlight unit 100 may include a plurality of backlight drivers 10 arranged in an array, and a plurality of light-emitting units 30 connected to each backlight driver 10. The light-emitting unit 30 may be, for example, a Mini LED (Mini Light-Emitting Diode, submillimeter light-emitting diode).

[0050] The system-on-chip 500 receives the image signal from a signal source (such as cable TV, satellite TV, network streaming media, etc.), and sends the image signal to the timing controller 400, for example, by sending the image signal through a VBO (V-By-One) interface.

[0051] The timing controller 400 converts the image signal into a data signal and a control signal, sends the data signal to the liquid crystal display panel 200, and sends the control signal to the backlight controller 300. For example, the data signal is sent to the liquid crystal display panel 200 through a P2P (point-to-point, point-to-point transmission) interface, and the control signal is sent to the backlight controller 300 through an SPI (Serial Peripheral Interface) interface.

[0052] The backlight controller 300 can generate local dimming data for each backlight area on the backlight unit 100 according to the data signal, and send the local dimming data of each backlight area 30 to the corresponding backlight driver 10. The backlight driver 10 can control the emission brightness of the corresponding light-emitting unit 30 according to the local dimming data, so as to realize the local dimming of the backlight unit 100. Correspondingly, the liquid crystal display panel 200 displays an image according to the data signal under the action of the backlight unit 100.

[0053] It should be noted that local dimming is a key technology to improve contrast and black performance. Through local dimming, high brightness can be maintained in high-brightness areas (bright areas), and low brightness can be maintained in low-brightness areas (dark areas) at the same time, so as to achieve deeper black and more distinct contrast.

[0054] In the case of Mini LED as the backlight source, there are two different backlight modes: single-color backlight and RGB (red, green, blue) backlight.

[0055] Single-color backlight means that the backlight source is a single color. For example, the backlight source is white light. Correspondingly, the brightness of the white light in each backlight area can be adjusted to reduce the brightness in a specific area, provide a higher contrast, and improve the dimming accuracy. For example, medical monitors can use single-color backlight and achieve improved contrast through local dimming to achieve the effect of clearly displaying details.

[0056] RGB backlight means that the backlight source includes three colors: red, green, and blue. By independently controlling the brightness of the red, green, and blue light sources in each backlight area, more abundant color performance can be achieved, and a higher dynamic range can be realized in the same picture, making the transition between the high-brightness area and the dark area more natural, and also being able to maintain color accuracy.

[0057] With the development of display technology, RGB backlight is widely used in various display devices, such as liquid crystal display screens, LED display screens, etc. These devices can rely on RGB backlight to provide rich color performance to meet the user's requirements for the display quality of images and videos.

[0058] In RGB backlight display devices, through different combinations of red light sources, green light sources, and blue light sources, a variety of colors can be displayed on the display screen. The distribution ratio of each color in the display area directly affects the overall color performance and visual effect. When the display screen needs to display two or more colors, especially in the case of an inclusion relationship between colors, color bleeding may occur at the boundary between adjacent two colors, affecting the display effect. For example, when yellow (formed by mixing red and green) is adjacent to red, since the power of red light is greater than that of green light, the boundary part of the yellow area tends to be red, resulting in color distortion.

[0059] To this end, the present application provides a control method for a display device. When the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the adjacent second color area is greater than a preset area, the transition area between the two color areas is determined, and the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area is controlled to be less than a preset threshold, so as to reduce the color difference between two adjacent color areas, reduce the influence of the first color area on the second color area, reduce color bleeding, and improve the display effect and visual effect.

[0060] The following uses specific embodiments to detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. These several specific embodiments below can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below with reference to the accompanying drawings.

[0061] Figure 2 Flow schematic of the control method for the display device provided by the present application Figure 1 , such as Figure 2 shown, the method includes:

[0062] S101. When the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the second color area is greater than or equal to a preset threshold, determine the transition area between the first color area and the second color area.

[0063] It should be noted that the first light source in the first color area refers to the first light source in the backlight area corresponding to the first color area, and the corresponding light source in the second color area refers to the same light source as the first light source in the backlight area corresponding to the second color area. The difference mentioned in the present application refers to the absolute value of the difference.

[0064] Exemplarily, the first color area and the second color area are any two adjacent areas on the display screen. Both the first color area and the second color area are areas composed of multiple pixels. Each pixel is at least composed of three color channels, which respectively correspond to red (R), green (G), and blue (B). Each channel has a corresponding gray value, and the gray value is used to represent the intensity (brightness) of the light source of the channel.

[0065] For example, in the case of 8-bit depth, the gray value range is from 0 to 255, where 0 represents no light (completely dark), and 255 represents the maximum light intensity (completely bright).

[0066] Exemplarily, various colors can be formed by adjusting the gray values of each channel. For example, a gray value of (255, 0, 0) represents pure red, a gray value of (0, 255, 0) represents pure green, a gray value of (0, 0, 255) represents pure blue, a gray value of (255, 255, 0) represents yellow, a gray value of (255, 255, 255) represents white, and a gray value of (0, 0, 0) represents black.

[0067] Exemplarily, since a color area is composed of multiple pixels, the gray values of each light source of each pixel may be different. For example, the gray values of at least one light source are different.

[0068] In the embodiments of the present application, when the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the second color area is greater than a preset threshold, it is determined to perform supplementary lighting processing to reduce the influence of color bleeding.

[0069] Exemplarily, the first light source in the first color area may include at least one of a red light source, a green light source, and a blue light source.

[0070] Correspondingly, when the first light source in the first color area only includes a red light source, and the corresponding light source in the second color area is a red light source, when the difference between the gray value of the red light source in the first color area and the gray value of the red light source in the second color area is greater than or equal to the preset threshold, the transition area between the first color area and the second color area is determined.

[0071] When the first light source in the first color area only includes a green light source, and the corresponding light source in the second color area is a green light source, when the difference between the gray value of the green light source in the first color area and the gray value of the green light source in the second color area is greater than or equal to the preset threshold, the transition area between the first color area and the second color area is determined.

[0072] When the first light source in the first color area only includes a blue light source, and the corresponding light source in the second color area is a blue light source, when the difference between the gray value of the blue light source in the first color area and the gray value of the blue light source in the second color area is greater than or equal to the preset threshold, the transition area between the first color area and the second color area is determined.

[0073] When the first light source in the first color area includes a red light source and a green light source, and the corresponding light sources in the second color area are a red light source and a green light source, when the difference between the gray value of the red light source in the first color area and the gray value of the red light source in the second color area is greater than or equal to the preset threshold, and the difference between the gray value of the green light source in the first color area and the gray value of the green light source in the second color area is greater than or equal to the preset threshold, the transition area between the first color area and the second color area is determined.

[0074] When the first light source in the first color area includes a red light source and a blue light source, and the corresponding light sources in the second color area are a red light source and a blue light source, if the difference between the gray value of the red light source in the first color area and the gray value of the red light source in the second color area is greater than or equal to a preset threshold, and the difference between the gray value of the blue light source in the first color area and the gray value of the blue light source in the second color area is greater than or equal to a preset threshold, determine the transition area between the first color area and the second color area.

[0075] When the first light source in the first color area includes a red light source, a green light source and a blue light source, and the corresponding light sources in the second color area are a red light source, a green light source and a blue light source, if the difference between the gray value of the red light source in the first color area and the gray value of the red light source in the second color area is greater than or equal to a preset threshold, and the difference between the green light source in the first color area and the green light source in the second color area is greater than or equal to a preset threshold, and the difference between the gray value of the blue light source in the first color area and the gray value of the blue light source in the second color area is greater than or equal to a preset threshold, determine the transition area between the first color area and the second color area.

[0076] Exemplarily, the preset threshold can be determined according to the actual situation, such as 200 - 255.

[0077] Exemplarily, as Figure 3 shown, compared with the second color area, the first color area can be an area with a darker color, and the second color area can be an area with a lighter color.

[0078] For example, as Figure 3 shown in (a) of it, the gray values of the light sources in the first color area are x 11 , y 11 , z 11 , and the gray values of the light sources in the second color area are x 21 , y 21 , z 21 . Among them, the difference between x 11 and x 21 is greater than or equal to the preset threshold, the difference between y 11 and y 21 is greater than or equal to the preset threshold, and the difference between z 11 and z 21 is greater than or equal to the preset threshold.

[0079] S102. Control the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be less than the preset threshold.

[0080] It should be noted that the second light source in the transition region refers to the second light source in the backlight region corresponding to the transition region, and the corresponding light source in the second color region refers to the light source identical to the second light source in the backlight region corresponding to the second color region.

[0081] In the embodiments of the present application, the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region is controlled to be less than a preset threshold. At this time, the color difference between the transition region and the second color region is less than the color difference between the first color region and the second color region, thereby reducing the influence of the first color region on the second color region and improving the display effect and visual effect.

[0082] In some optional embodiments, the second light source may include at least one of a red light source, a green light source, and a blue light source. By controlling the gray value of at least one of the red light source, the green light source, and the blue light source in the transition region, the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region is made less than or equal to the preset threshold.

[0083] In some embodiments, the second light source may include one light source, that is, by controlling the brightness of the transition region, the color region with higher brightness (darker color) can maintain sufficient brightness when transitioning to the color region with lower brightness, maintaining smooth brightness change during the transition process, reducing the problem of uneven brightness, and improving the brightness consistency of the boundary display effect.

[0084] Exemplarily, the second light source may only include a red light source. Correspondingly, the gray value of the red light source in the transition region is controlled such that the difference between the gray value of the red light source in the transition region and the gray value of the red light source in the second color region is less than the preset threshold.

[0085] The second light source may only include a green light source. Correspondingly, the gray value of the green light source in the transition region is controlled such that the difference between the gray value of the green light source in the transition region and the gray value of the green light source in the second color region is less than the preset threshold.

[0086] The second light source may only include a blue light source. Correspondingly, the gray value of the blue light source in the transition region is controlled such that the difference between the gray value of the blue light source in the transition region and the gray value of the blue light source in the second color region is less than the preset threshold.

[0087] Exemplarily, when the backlight unit of the display device includes other light sources in addition to the red light source, the green light source, and the blue light source, the gray value of the other light source can also be controlled.

[0088] In some embodiments, the second light source may include at least two light sources, so that by controlling the color of the transition region, the brightness and color change of the transition region will not be abrupt, the smoothness of the transition region can be improved, and the color mutation problem can be reduced.

[0089] Exemplarily, the second light source may include a red light source and a green light source. Correspondingly, the gray value of the red light source and the gray value of the green light source in the transition region are controlled such that the difference between the gray value of the red light source in the transition region and the gray value of the red light source in the second color region is less than a preset threshold, and the difference between the gray value of the green light source in the transition region and the gray value of the green light source in the second color region is less than a preset threshold.

[0090] The second light source may include a red light source and a blue light source. Correspondingly, the gray value of the red light source and the gray value of the blue light source in the transition region are controlled such that the difference between the gray value of the red light source in the transition region and the gray value of the red light source in the second color region is less than a preset threshold, and the difference between the gray value of the blue light source in the transition region and the gray value of the blue light source in the second color region is less than a preset threshold.

[0091] The second light source may include a green light source and a blue light source. Correspondingly, the gray value of the green light source and the gray value of the blue light source in the transition region are controlled such that the difference between the gray value of the green light source in the transition region and the gray value of the green light source in the second color region is less than a preset threshold, and the difference between the gray value of the blue light source in the transition region and the gray value of the blue light source in the second color region is less than a preset threshold.

[0092] The second light source may include a red light source, a green light source, and a blue light source. Correspondingly, the gray value of the red light source, the gray value of the green light source, and the gray value of the blue light source in the transition region are controlled such that the difference between the gray value of the red light source in the transition region and the gray value of the red light source in the second color region is less than a preset threshold, and the difference between the gray value of the green light source in the transition region and the gray value of the green light source in the second color region is less than a preset threshold, and the difference between the gray value of the blue light source in the transition region and the gray value of the blue light source in the second color region is less than a preset threshold.

[0093] For example, as shown in (b) of Figure 3 , the gray values of the light sources in the first color region are x 11 , y 11 , z 11 , the gray values of the light sources in the second color region are x 21 , y 21 , z 21 , and the gray values of the light sources in the transition region are x 11 , y12 , z 12 . Among them, the difference between y 12 and y 21 is less than a preset threshold, and the difference between z 12 and z 21 is less than a preset threshold.

[0094] Again, as shown in (c) of Figure 3 , the gray values of the light sources in the first color area are x 11 , y 11 , z 11 . The gray values of the light sources in the second color area are x 21 , y 21 , z 21 respectively. The gray values of the light sources in the transition area are x 13 , y 11 , z 11 respectively. Among them, the difference between x 13 and x 11 is less than a preset threshold.

[0095] In some alternative embodiments, the power of the second light source in the transition area is adjusted to adjust the gray value of the second light source in the transition area, so that the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area is less than a preset threshold.

[0096] Exemplarily, if the second light source is a red light source, the power of the red light source in the transition area can be adjusted; if the second light source is a green light source, the power of the green light source in the transition area can be adjusted; if the second light source is a blue light source, the power of the blue light source in the transition area can be adjusted. It should be noted that the greater the power of the light source, the greater the gray value.

[0097] For the control method of the display device provided in this application, when the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the second color area is greater than or equal to a preset threshold, the transition area between the first color area and the second color area is determined, and the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area is controlled to be less than a preset threshold, thereby reducing the color difference between the transition area and the second color area, reducing the influence of the first color area on the second color area, reducing color bleeding, and improving the display effect and visual effect.

[0098] Figure 4 is the flow schematic of the control method of the display device provided in this application Figure 2 , as shown in Figure 4 , this method includes:

[0099] S201 : Detecting a boundary between a first color region and a second color region when a difference between a grayscale value of a first light source in a first color region and a grayscale value of a corresponding light source in a second color region is greater than or equal to a preset threshold.

[0100] For example, for each color region on an RGB backlight display device, the intersection boundary of adjacent color regions can be detected using existing image processing algorithms. For example, the color values of each color region are compared and analyzed to determine whether they are close to the intersection boundary.

[0101] S202 : Taking the junction boundary as the starting boundary, expanding toward at least one side of the boundary to obtain a transition area.

[0102] For example, when the second color area is a white area, the intersection boundary is used as the starting boundary and expanded toward the first color area to obtain a transition area; when the first color area is a white area, the intersection boundary is used as the starting boundary and expanded toward the second color area to obtain a transition area, such as Figure 5 As shown; in the case where the first color area and the second color area are not white areas, the intersection boundary is used as the starting boundary and extended to the first color area or the second color area to obtain a transition area, such as Figure 6 shown.

[0103] It should be noted that expanding the first color region to form a transition region means dividing a portion of the first color region near the second color region into a transition region. Expanding the second color region to form a transition region means dividing a portion of the second color region near the first color region into a transition region. When the color region is a white region, no transition region is formed in the white region.

[0104] S203 : Control the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be smaller than a preset threshold.

[0105] In one possible embodiment, when expanding to the first color region to obtain a transition region, the grayscale value of the second light source in the transition region can be increased so that the difference between the grayscale value of the second light source in the transition region and the grayscale value of the corresponding light source in the second color region is less than a preset threshold.

[0106] For example, Figure 5 As shown, according to Figure 5 From (d) in the figure, we can see that the grayscale values of each light source in the first color region are (255, 0, 0), and the grayscale values of each light source in the second color region are (255, 255, 255). If a transition region is formed in the first color region, positive compensation can be performed on the transition region to increase the grayscale values of the green light source and the blue light source in the transition region, as shown in the following example:Figure 5 As shown in (e) of , the gray values of the light sources in the transition region are (250, 230, 230).

[0107] For another example, as Figure 6 shown, according to Figure 6 in (f) of , it can be known that the gray values of the light sources in the first color region are (255, 0, 0), and the gray values of the light sources in the second color region are (240, 255, 255). If a transition region is formed in the first color region, positive compensation can be performed on the transition region, the gray values of the green light source and the blue light source in the transition region can be increased, and the gray values of the light sources in the transition region are (250, 230, 230), as Figure 6 shown in (h) of .

[0108] For another example, as Figure 6 shown, according to Figure 6 in (g) of , it can be known that the gray values of the light sources in the first color region are (255, 0, 0), and the gray values of the light sources in the second color region are (255, 255, 0). If a transition region is formed in the first color region, positive compensation can be performed on the transition region, the gray value of the green light source in the transition region can also be increased, and the gray values of the light sources in the transition region are (250, 230, 0), as Figure 6 shown in (i) of .

[0109] In a possible implementation manner, when expanding to the second color region to obtain a transition region, the gray value of the second light source in the transition region can be reduced so that the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region is less than a preset threshold.

[0110] For example, as Figure 6 shown, according to Figure 6 in (f) of , it can be known that the gray values of the light sources in the first color region are (255, 0, 0), and the gray values of the light sources in the second color region are (240, 255, 255). If a transition region is formed in the second color region, negative compensation can be performed on the transition region, the gray value of the red light source in the transition region can be reduced, and the gray values of the light sources in the transition region are (230, 255, 255), as Figure 6 shown in (j) of .

[0111] For another example, as Figure 6 shown, according to Figure 6As can be seen from (g) in [reference], the gray values of the light sources in the first color region are (255, 0, 0), and the gray values of the light sources in the second color region are (255, 255, 0). If a transition region is formed in the second color region, negative compensation can be performed on the transition region, or the gray value of the green light source in the transition region can be reduced. The gray values of the light sources in the transition region are (250, 230, 0), as Figure 6 shown in (k) in [reference].

[0112] For the control method of the display device provided by the embodiments of the present application, after determining the transition region, positive compensation or negative compensation is determined for the transition region according to the position of the transition region, the color difference between the transition region and the second color region is reduced, the influence of the first color region on the second color region is reduced, color bleeding is reduced, and the display effect and visual effect are improved.

[0113] Figure 7 is a schematic flow chart of the control method of the display device provided by the present application Figure 3 , as Figure 7 shown, S102, controlling the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region to be less than a preset threshold may include:

[0114] S301, dividing the transition region into multiple sub-regions.

[0115] Exemplarily, as Figure 8 shown, the set difference can be determined according to the difference between the gray values of the light sources in the first color region and the gray values of the corresponding light sources in the second color region. For example, the set difference is obtained by performing the set difference on Urgb1 - Urgb2 or Urgb2 - Urgb1, resulting in Ugb3×T1, where Urgb1 represents the gray values of the light sources in the first color region, and Urgb2 represents the gray values of the light sources in the second color region.

[0116] Urgb1 - Urgb2 or Urgb2 - Urgb1 calculates the color difference between two adjacent color regions. This difference can help identify color changes at the boundary. Multiplying the difference result by the weighting matrix T1 performs a weighted process on the color difference to achieve a smooth transition. T1 is obtained by multiplying the matrix T by the adjacent gray level difference G (the gray value difference between adjacent regions). The matrix T is used for smoothing and weighting processes, and its structure can affect the smoothness of the boundary transition. For example, the values in the middle of the matrix are larger (such as 1.0), while the values at the edges are smaller (such as 0.3), which means that the influence on the central region is greater, thus achieving a more natural transition. The adjacent gray value difference is used to adjust the weight of the matrix T.

[0117] Exemplarily, the set sum can also be determined based on the sum value between the gray values of each light source in the first color region and the corresponding light source in the second color region. For example, Urgb1 + Urgb2 or Urgb2 + Urgb1 is used as the set sum to obtain Ugb3 × T2.

[0118] Urgb1 + Urgb2 or Urgb2 + Urgb1 calculates the sum of the gray values of two adjacent color regions. This sum can be used to enhance the color brightness at the boundary. The sum result is multiplied by the weighting matrix T2. T2 is also obtained by multiplying the matrix T by the adjacent gray level difference G. This process weights the color sum to enhance the transition effect.

[0119] S302: Gradually increase the gray value of the second light source in each partition in the direction close to the second color region, and the difference between the gray value of the second light source in each partition and the corresponding light source in the second color region is less than a preset threshold.

[0120] In this embodiment, the gray value of the second light source in each partition is gradually increased in the direction close to the second color region to gradually adjust the brightness and hue of the transition region, making the color mixing at the boundary more natural and reducing the color deviation caused by the uneven power distribution of the RGB light sources.

[0121] Exemplarily, if the second light source includes one type of light source, the brightness of each partition can be gradually adjusted to ensure smooth brightness change during the transition process and reduce the problem of uneven brightness.

[0122] Exemplarily, if the second light source includes at least two types of light sources, the color of each partition can be gradually adjusted, so as to gradually transition one color to another in a gradient manner, forming a smooth color transition region, effectively improving the smoothness of the color transition and reducing the problem of color mutation.

[0123] In some embodiments, after controlling the difference between the gray value of the second light source in the transition region and the gray value of the second light source in the second color region to be less than a preset threshold, the brightness of the transition region is corrected to ensure natural color transition and uniform brightness distribution in the entire display region, avoiding visual discomfort caused by brightness differences or color distortion.

[0124] Exemplarily, in some cases, there may be a problem of uneven brightness in the transition region, especially when transitioning from a high-brightness region to a low-brightness region. At this time, it can be corrected through a brightness compensation algorithm to ensure the brightness consistency of the transition region. For example, during the transition process of the red and green boundaries, there may be an over-bright situation. At this time, the boundary brightness of the red region can be adjusted to avoid unnatural light spots or brightness deviations at the boundary.

[0125] Exemplarily, perform brightness and color analysis on the boundary region to detect whether there is uneven brightness. According to the detection result, dynamically adjust the brightness compensation value to make the brightness and color of the boundary region more balanced. In practical applications, the compensation strategy can be flexibly adjusted according to the specific display content and usage scenario to further optimize the display effect.

[0126] In some embodiments, perform filtering processing on the transition region to ensure uniform brightness at the boundary and prevent the visual effect of the entire image from being affected by a single high-brightness pixel.

[0127] Exemplarily, sample the image data in the transition region, analyze the brightness value of each pixel, and through filtering processing, remove the maximum value of a single pixel to avoid the situation where a very small number of pixels are too bright and affect the overall display effect.

[0128] In the above embodiments, through the synergistic effect of multiple algorithms, the transition at the color boundary is made more natural and smooth, avoiding the abrupt boundary problem existing in traditional display technologies. And through effective brightness compensation and filtering algorithms, the uniformity of the display effect is ensured, and it can also be applied to various complex color transition scenarios, dynamically adjust the transition strategy to adapt to different display contents and viewing requirements, significantly improve the visual quality of the display screen, and reduce the visual fatigue or discomfort caused by uneven display for users.

[0129] The control method of the display device provided by the embodiments of the present application gradually adjusts the brightness and hue of the color region to make the color mixing at the boundary part more natural, alleviate the color mutation problem at the boundary, and improve the smoothness of the display effect.

[0130] Figure 9 It is a schematic structural diagram of the control device of the display device provided by the present application, as Figure 9 shown, the control device 10 of the display device provided by this embodiment includes:

[0131] A determination module 11, configured to determine the transition region between the first color region and the second color region when the difference between the gray value of the first light source in the first color region and the gray value of the corresponding light source in the second color region is greater than or equal to a preset threshold; wherein, the first color region and the second color region are adjacent regions;

[0132] A control module 12, configured to control the difference between the gray value of the second light source in the transition region and the gray value of the corresponding light source in the second color region to be less than the preset threshold.

[0133] In one possible implementation, the control module 12 is specifically configured to divide the transition region into a plurality of partitions; sequentially increase the grayscale value of the second light source in each partition in a direction approaching the second color region, and the difference between the grayscale value of the second light source in each partition and the grayscale value of the corresponding light source in the second color region is less than a preset threshold.

[0134] In one possible implementation, the control module 12 is specifically configured to adjust the power of the second light source in the transition region so that the difference between the grayscale value of the second light source in the transition region and the grayscale value of the corresponding light source in the second color region is less than a preset threshold.

[0135] In a possible implementation, the determination module 11 is specifically configured to detect a junction boundary between the first color region and the second color region; and to expand toward at least one side of the junction boundary with the junction boundary as a starting boundary to obtain a transition region.

[0136] In one possible implementation, the determination module 11 is specifically used to, when the second color area is a white area, take the intersection boundary as the starting point and expand toward the first color area to obtain a transition area; when the first color area is a white area, take the intersection boundary as the starting point and expand toward the second color area to obtain a transition area; when neither the first color area nor the second color area is a white area, take the intersection boundary as the starting point and expand toward the first color area or the second color area to obtain a transition area.

[0137] In one possible implementation, the control module 12 is specifically configured to, when expanding toward the first color region to obtain a transition region, increase the grayscale value of the second light source in the transition region so that the difference between the grayscale value of the second light source in the transition region and the grayscale value of the corresponding light source in the second color region is less than a preset threshold.

[0138] In one possible implementation, the control module 12 is specifically configured to, when expanding toward the second color region to obtain a transition region, reduce the grayscale value of the second light source in the transition region so that the difference between the grayscale value of the second light source in the transition region and the grayscale value of the corresponding light source in the second color region is less than a preset threshold.

[0139] In a possible implementation, the control module 12 is further configured to perform brightness correction on the transition region; and / or perform filtering on the transition region.

[0140] The control device of the display device provided in this embodiment can execute the method provided in the above method embodiment. Its implementation principle and technical effects are similar, and are not described in detail in this embodiment.

[0141] Figure 10 This is a schematic diagram of the structure of the electronic device provided in this application. Figure 10As shown in the figure, the electronic device 50 provided in this embodiment includes: at least one processor 501 and a memory 502. Optionally, the device 50 further includes a communication component 503. Among them, the processor 501, the memory 502, and the communication component 503 are connected through a bus 504.

[0142] In the specific implementation process, at least one processor 501 executes the computer-executable instructions stored in the memory 502, so that at least one processor 501 executes the above-mentioned method.

[0143] For the specific implementation process of the processor 501, reference can be made to the above method embodiment. Their implementation principles and technical effects are similar, and will not be elaborated here in this embodiment.

[0144] In the above embodiment, it should be understood that the processor may be a central processing unit (English: Central Processing Unit, abbreviated as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor, abbreviated as: DSP), application specific integrated circuits (English: Application Specific Integrated Circuit, abbreviated as: ASIC), etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the invention can be directly embodied as being executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.

[0145] The memory may include a high-speed memory (Random Access Memory, RAM), and may also include a non-volatile memory (Non-volatile Memory, NVM), such as at least one disk memory.

[0146] The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, the bus in the drawings of this application is not limited to only one bus or one type of bus.

[0147] This application also provides a computer program product, including a computer program, which implements the above-mentioned method when executed by a processor.

[0148] The present application also provides a computer-readable storage medium, in which computer-executable instructions are stored. When the processor executes the computer-executable instructions, the above-mentioned method is implemented.

[0149] Finally, it should be noted that: After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily think of other embodiments of the present invention. The present invention is intended to cover any variations, uses, or adaptations of the present invention, which follow the general principles of the present invention and include the common general knowledge or conventional technical means in the technical field not disclosed by the present invention. It is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present invention is only limited by the appended claims.

Claims

1. A control method for a display device, characterized in that include: When a difference between a grayscale value of a first light source in a first color region and a grayscale value of a corresponding light source in a second color region is greater than or equal to a preset threshold, determining a transition region between the first color region and the second color region; wherein the first color region and the second color region are adjacent regions; The difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area is controlled to be smaller than the preset threshold.

2. The method according to claim 1, characterized in that The controlling the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be smaller than the preset threshold includes: dividing the transition region into a plurality of partitions; The grayscale value of the second light source in each partition is increased sequentially in a direction approaching the second color area, and the difference between the grayscale value of the second light source in each partition and the grayscale value of the corresponding light source in the second color area is less than the preset threshold.

3. The method according to claim 1, characterized in that The controlling the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be smaller than the preset threshold includes: The power of the second light source in the transition area is adjusted so that a difference between a grayscale value of the second light source in the transition area and a grayscale value of a corresponding light source in the second color area is less than the preset threshold.

4. The method according to claim 1, characterized in that, The determining of a transition area between the first color area and the second color area includes: Detecting a junction boundary between the first color area and the second color area; The transition area is obtained by taking the intersection boundary as a starting boundary and extending toward at least one side of the intersection boundary.

5. The method according to claim 4, wherein The step of taking the intersection boundary as a starting point and extending toward at least one side of the intersection boundary to obtain the transition area includes: When the second color area is a white area, starting from the intersection boundary and extending toward the first color area, the transition area is obtained; When the first color area is a white area, starting from the intersection boundary and extending toward the second color area, the transition area is obtained; In the case that neither the first color area nor the second color area is a white area, the transition area is obtained by taking the intersection boundary as a starting point and extending toward the first color area or the second color area.

6. The method according to claim 5, wherein The controlling the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be smaller than the preset threshold includes: When expanding to the first color area to obtain the transition area, the grayscale value of the second light source in the transition area is increased so that the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area is less than the preset threshold.

7. The method according to claim 5, characterized in that The controlling the difference between the grayscale value of the second light source in the transition area and the grayscale value of the corresponding light source in the second color area to be smaller than the preset threshold includes: In the case of expanding to the second color area to obtain the transition area, reduce the gray value of the second light source in the transition area so that the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area is less than the preset threshold.

8. The method according to any one of claims 1-7, characterized in that, The method further includes: Performing brightness correction on the transition area; And / or, performing filtering processing on the transition area.

9. A control device for a display device, characterized in that, It includes: A determination module, configured to determine the transition area between the first color area and the second color area when the difference between the gray value of the first light source in the first color area and the gray value of the corresponding light source in the second color area is greater than or equal to a preset threshold; wherein, the first color area and the second color area are adjacent areas; A control module, configured to control the difference between the gray value of the second light source in the transition area and the gray value of the corresponding light source in the second color area to be less than the preset threshold.

10. An electronic device, characterized in that, It includes: A memory, a processor; The memory stores computer-executable instructions; The processor executes the computer-executable instructions stored in the memory, so that the processor executes the method according to any one of claims 1-8.

11. A computer-readable storage medium, characterized in that, Computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, they are used to implement the method according to any one of claims 1-8.

12. A computer program product, characterized in that, It includes a computer program, and when the computer program is executed by a processor, it implements the method according to any one of claims 1-8.

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