Moire pattern comprehensive elimination method for overlapped display of LED display screen and perforated plate

Abstract

The invention relates to an LED display screen and perforated plate overlapping display moire comprehensive elimination method, which optimizes the pixel arrangement mode of an LED display screen based on the arrangement mode of RGB chips in the pixels of the LED display screen and the vertical direction of picture motion. Generating a matching relation of pixel arrangement of the perforated plate and the LED display screen according to the relative positions and parameters of the perforated plate and the LED display screen; carrying out perforated plate pore structure bevel angle cutting; covering a diffuse scattering optical film without periodic irregular textures on the perforated plate; whether the physical coordinates of the sub-pixels of the LED display screen are located in the shielding area or not is detected through the periodic function of the shielding area of the grating, the sub-pixels meeting the preset condition are extinguished, and the moire patterns displayed by overlapping of the LED display screen and the perforated plate are eliminated. According to the method and the device, the moire problem occurring when the human eyes observe the LED display screen is effectively reduced, the display definition and the visual experience are improved, and the applicability of the LED display technology in complex scenes such as large-space exhibition is enhanced.

Description

Technical Field

[0001] This application relates to the technical field of electronic screen display, and particularly relates to a comprehensive method for eliminating moiré patterns in the superimposed display of an LED display screen and a perforated plate. Background Art

[0002] In the field of modern display technology, the combined application of an LED (Light Emitting Diode) display screen and a perforated plate is widely used, especially in scenarios such as building facades, exhibitions, etc.

[0003] However, due to the difference in the pixel structure of the LED and the aperture arrangement of the perforated plate, the superimposed structure often causes visual interference such as moiré patterns, which will affect the clarity and visual perception of the display, especially in high-brightness and large-area display environments. Summary of the Invention

[0004] This application provides a comprehensive method for eliminating moiré patterns in the superimposed display of an LED display screen and a perforated plate, so as to solve the problems in the related technology that due to the difference in the pixel structure of the LED and the aperture arrangement of the perforated plate, the superimposed structure often causes visual interference such as moiré patterns, which will affect the clarity and visual perception of the display.

[0005] The first aspect embodiment of this application provides a comprehensive method for eliminating moiré patterns in the superimposed display of an LED display screen and a perforated plate, including the following steps: Based on the arrangement of RGB chips within the pixels of the LED display screen in the direction perpendicular to the movement of the picture, optimize the pixel arrangement of the LED display screen to generate a final pixel arrangement that meets the preset optimization conditions, and based on the final pixel arrangement, configure the relative position and parameters of the perforated plate and the LED display screen to generate a matching relationship between the pixel arrangements of the perforated plate and the LED display screen according to the relative position and the parameters; establish a mathematical relationship based on the relative parameters between the human eye and the LED display screen at the position that meets the preset best observation position conditions to perform bevel cutting on the perforated plate structure to generate a cutting structure; cover the perforated plate with a diffusive optical film with an aperiodic and irregular texture; based on the matching relationship, the cutting structure, and the diffusive optical film, use the periodic function of the grid occlusion area to detect whether the physical coordinates of the sub-pixels of the LED display screen are within the occlusion area, and in the case where the periodic function is detected to be within the occlusion area, turn off the sub-pixels that meet the preset conditions to eliminate the moiré patterns in the superimposed display of the LED display screen and the perforated plate.

[0006] Optionally, in an embodiment of the present application, generating the matching relationship between the perforated plate and the pixel arrangement of the LED display according to the relative position and the parameter includes: arranging the square holes of the LED display in a preset matrix to generate an arrangement result; based on the arrangement result, setting the parameter of the square hole diameter and the hole pitch of the LED display as the target multiple of the LED lamp bead size and the pixel pitch, and determining the matching relationship between the perforated plate and the pixel arrangement of the LED display based on the target multiple.

[0007] Optionally, in an embodiment of the present application, the relational expression of the opening size and the hole pitch of the perforated plate is:

[0008]

[0009] where D x and D y are the horizontal and vertical aperture diameters of the square hole respectively, T x and T y are the horizontal and vertical center distances between adjacent square holes respectively, W and H are the horizontal and vertical physical sizes of a single LED lamp bead respectively, P and Q are the horizontal and vertical center distances between adjacent LED lamp beads respectively, and k, l, m, n are all positive integers;

[0010] The light transmittance requirement of the square aperture diameter and the hole pitch is:

[0011]

[0012] where is the light transmittance of the perforated plate.

[0013] Optionally, in an embodiment of the present application, the mathematical relationship between the angle of the bevel and the observation parameter is:

[0014]

[0015] where H e is the observer's eye height, H p is the installation reference height of the perforated plate, L is the optimal observation distance, and Δθ safe is the safety margin angle.

[0016] Optionally, in an embodiment of the present application, the physical coordinates of the LED sub-pixels are:

[0017]

[0018] where R, G, and B respectively refer to the red sub-pixel, the green sub-pixel, and the blue sub-pixel, and P and Q are the horizontal and vertical center distances between adjacent LED lamp beads respectively, and are the horizontal offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel within the lamp, respectively, and are the vertical offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel within the lamp, respectively;

[0019] The calculation formula for the occlusion area is:

[0020]

[0021] where T x and T y are the horizontal and vertical periods of the grating, respectively, and W x and W y are the horizontal and vertical widths of the occlusion bar, respectively, and x0 and y0 are the horizontal and vertical initial offsets of the grating relative to the screen.

[0022] Optionally, in an embodiment of the present application, the extinguishable formula for the sub-pixel is:

[0023] P = {(i, j, k)|G(x k (i, j), y k (i, j)) = 1},

[0024] where x k (i, j), y k (i, j) are the physical coordinates of the sub-pixel, and K ∈ {R, G, B} represents the color channel;

[0025] The actual extinguishable formula for the sub-pixel is:

[0026] P′ = random(P),

[0027] where random(P) represents random sampling from P.

[0028] The second aspect of the embodiments of the present application provides a moiré comprehensive elimination device for superposed display of an LED display screen and a perforated plate, including: an optimization module, configured to optimize the pixel arrangement of the LED display screen based on the arrangement of RGB chips within the pixels of the LED display screen in the direction perpendicular to the movement of the picture, so as to generate a final pixel arrangement that meets preset optimization conditions, and configure the relative position and parameters of the perforated plate and the LED display screen based on the final pixel arrangement, so as to generate a matching relationship between the pixel arrangements of the perforated plate and the LED display screen according to the relative position and the parameters; a building module, configured to establish a mathematical relationship based on the relative parameters between the human eye and the LED display screen at a position that meets the preset optimal viewing position condition, so as to perform bevel cutting on the structure of the perforated plate to generate a cutting structure; a covering module, configured to cover a diffusing optical film with an aperiodic irregular texture on the perforated plate; an elimination module, configured to detect whether the physical coordinates of the sub-pixels of the LED display screen are located within the occlusion area by using the periodic function of the grille occlusion area based on the matching relationship, the cutting structure, and the diffusing optical film, and turn off the sub-pixels that meet the preset conditions when it is detected that the periodic function is within the occlusion area, so as to eliminate the moiré of the superposed display of the LED display screen and the perforated plate.

[0029] Optionally, in an embodiment of the present application, the configuration module includes: an arranging unit, configured to arrange the square holes of the LED display screen according to a preset matrix to generate an arrangement result; a determining unit, configured to set the parameters of the square hole diameter and the hole pitch of the LED display screen as the target multiples of the LED lamp bead size and the pixel pitch based on the arrangement result, and determine the matching relationship between the pixel arrangements of the perforated plate and the LED display screen based on the target multiples.

[0030] Optionally, in an embodiment of the present application, the relationship between the opening size and the hole pitch of the perforated plate is:

[0031]

[0032] where D x and D y are the horizontal and vertical aperture diameters of the square hole respectively, T x and T y are the horizontal and vertical center distances between adjacent square holes respectively, W and H are the horizontal and vertical physical sizes of a single LED lamp bead respectively, P and Q are the horizontal and vertical center distances between adjacent LED lamp beads respectively, and k, l, m, n are all positive integers;

[0033] The light transmittance requirements for the square hole diameter and the hole pitch are:

[0034]

[0035] Among them, is the light transmittance of the perforated plate.

[0036] Optionally, in an embodiment of the present application, the mathematical relationship between the angle of the bevel and the observation parameter is:

[0037]

[0038] where H e is the observer's eye height, H p is the installation reference height of the perforated plate, L is the optimal observation distance, and Δθ safe is the safety margin angle.

[0039] Optionally, in an embodiment of the present application, the physical coordinates of the sub-pixels of the LED display screen are:

[0040]

[0041] where R, G, and B respectively refer to the red sub-pixel, the green sub-pixel, and the blue sub-pixel, P and Q are respectively the horizontal and vertical spacings between the centers of adjacent LED beads, and are respectively the horizontal offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel inside the lamp, and are respectively the vertical offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel inside the lamp;

[0042] The calculation formula for the occlusion area is:

[0043]

[0044] where T x and T y are respectively the horizontal and vertical periods of the grille, W x and W y are respectively the horizontal and vertical widths of the occlusion bar, and x0 and y0 are respectively the horizontal and vertical initial offsets of the grille relative to the screen.

[0045] Optionally, in an embodiment of the present application, the extinguishable formula for the sub-pixel is:

[0046] P = {(i, j, k)|G(x k (i, j), y k (i, j)) = 1},

[0047] where x k (i, j), y k(i, j) is the physical coordinate of the sub-pixel, and K ∈ {R, G, B} represents the color channel;

[0048] The actual extinguishing formula of the sub-pixel is:

[0049] P′ = random(P),

[0050] where random(P) represents random sampling from P.

[0051] An embodiment of the third aspect of the present application provides an electronic device, including: a memory, a processor, and a computer program stored on the memory and executable on the processor. The processor executes the program to implement the moiré comprehensive elimination method for the superimposed display of the LED display screen and the perforated plate as described in the above embodiments.

[0052] An embodiment of the fourth aspect of the present application provides a computer-readable storage medium, which stores a computer program. When the program is executed by a processor, it implements the moiré comprehensive elimination method for the superimposed display of the LED display screen and the perforated plate as described above.

[0053] An embodiment of the fifth aspect of the present application provides a computer program product, which stores a computer program. When the program is executed by a processor, it implements the moiré comprehensive elimination method for the superimposed display of the LED display screen and the perforated plate as described above.

[0054] The embodiments of the present application can optimize the pixel arrangement of the LED display screen, perform refined design on the physical parameters of the perforated plate, cover a diffuse diffusion optical film with an aperiodic regular texture on the perforated plate, and design a dynamic bead extinguishing compensation algorithm to effectively reduce moiré, improve display clarity and visual experience, and enhance the applicability of the LED display technology in complex scenarios. Thus, it solves the problems in the related art that due to the difference in the LED pixel structure and the aperture arrangement of the perforated plate, the superimposed structure often causes visual interferences such as moiré, which will affect the clarity and perception of the display.

[0055] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The above and / or additional aspects and advantages of the present application will become apparent and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0057] Figure 1 is a flowchart of a moiré comprehensive elimination method for the superimposed display of an LED display screen and a perforated plate according to an embodiment of the present application;

[0058] Figure 2 Schematic structural diagram of an LED and perforated plate superimposed display system according to an embodiment of the present application;

[0059] Figure 3 Flowchart of a moiré elimination dynamic bead extinction compensation algorithm for LED and perforated plate superimposed display according to an embodiment of the present application;

[0060] Figure 4 Schematic structural diagram of a moiré comprehensive elimination device for an LED display screen and a perforated plate superimposed display according to an embodiment of the present application;

[0061] Figure 5 Schematic structural diagram of an electronic device according to an embodiment of the present application. Detailed implementation manners

[0062] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and should not be construed as a limitation to the present application.

[0063] The moiré comprehensive elimination method for an LED display screen and a perforated plate superimposed display according to an embodiment of the present application will be described below with reference to the accompanying drawings. In view of the problem in the related art mentioned in the above background technology that due to the difference in the LED pixel structure and the aperture arrangement of the perforated plate, the superimposed structure often causes visual interferences such as moiré, which will affect the display clarity and visual perception, the present application provides a moiré comprehensive elimination method for an LED display screen and a perforated plate superimposed display. In this method, the pixel arrangement of the LED display screen can be optimized, the physical parameters of the perforated plate can be refined, a diffusive optical film with an aperiodic regular texture can be covered on the perforated plate, and a dynamic bead extinction compensation algorithm can be designed to effectively reduce moiré, improve the display clarity and visual experience, and enhance the applicability of the LED display technology in complex scenarios. Thus, the problems in the related art that due to the difference in the LED pixel structure and the aperture arrangement of the perforated plate, the superimposed structure often causes visual interferences such as moiré, which will affect the display clarity and visual perception are solved.

[0064] Specifically, Figure 1 It is a flowchart of a moiré comprehensive elimination method for an LED display screen and a perforated plate superimposed display provided by an embodiment of the present application.

[0065] As Figure 1 shown, the moiré comprehensive elimination method for the LED display screen and the perforated plate superimposed display includes the following steps:

[0066] In step S101, based on the arrangement of the RGB chips in the pixels of the LED display screen in a direction perpendicular to the movement of the picture, the pixel arrangement of the LED display screen is optimized to generate a final pixel arrangement that meets the preset optimization conditions, and based on the final pixel arrangement, the relative position and parameters of the perforated plate and the LED display screen are configured to generate a matching relationship between the pixel arrangement of the perforated plate and the LED display screen according to the relative position and parameters.

[0067] It is understandable that the perforated plate grid structure attached to the front of the LED display will interfere with the periodic structure of the screen pixels, causing visual interference when people directly view the LED display items (if the naked eye directly observes the LED display, moiré patterns are generally not noticeable, but after the perforated plate is superimposed, obvious moiré patterns will be observed). However, this application can solve the disadvantages of the perforated plate grid structure and is suitable for large-scale exhibitions that take into account both display and light transmission functions, that is, it meets the needs of scenarios where LED displays are superimposed with perforated plate structures.

[0068] In the embodiment of the present application, for the LED display screen, one packaged lamp bead is one pixel, and the structure inside has three types of R / G / B chips. In the embodiment of the present application, the arrangement direction of the RGB (Red, Green, Blue) chips in the lamp bead is selected to be perpendicular to the direction of movement of the LED display screen.

[0069] In the actual implementation process, the embodiment of the present application can adopt a combination of physical elimination methods and algorithmic elimination methods, wherein the physical elimination method includes: optimizing the pixel arrangement of the LED display based on the arrangement of the RGB chips in the pixels (lamp beads) of the LED display and the vertical direction of the picture movement, and finely designing the physical parameters of the perforated plate, and configuring the relative position and parameters of the LED display and the perforated plate based on the final pixel arrangement, so as to generate a matching relationship between the pixel arrangement of the perforated plate and the LED display according to the relative position and parameters.

[0070] The pixel packaging of this application adopts an arrangement method in which the RGB chips in the pixels of the LED display are arranged perpendicular to the movement of the picture, and optimizes the pixel arrangement method of the LED display to generate a final pixel arrangement method that meets certain optimization conditions, thereby avoiding uneven blocking of the RGB three-color lamp beads and preventing the moiré phenomenon caused by color deficiency.

[0071] It should be noted that the preset optimization conditions can be set by those skilled in the art according to actual conditions and are not specifically limited here.

[0072] Optionally, in an embodiment of the present application, generating a matching relationship between the perforated plate and the pixel arrangement of the LED display screen according to the relative position and parameters includes: arranging the square holes of the LED display screen in a preset matrix to generate an arrangement result; based on the arrangement result, setting the parameters of the square hole diameter and the hole pitch of the LED display screen as the target multiples of the LED lamp bead size and the pixel pitch, and determining the matching relationship between the perforated plate and the pixel arrangement of the LED display screen based on the target multiples.

[0073] It can be understood that the target multiple in the embodiment of the present application can be an integer multiple.

[0074] During the actual execution process, as Figure 2 shown, the embodiment of the present application can select square holes and adopt a matrix arrangement to generate an arrangement result. Based on the arrangement result, the parameters of the square hole diameter and the hole pitch of the LED display screen are set as integer multiples of the LED lamp bead size and the pixel pitch, and based on the target multiple, the periodic structure of the perforated plate is matched with the LED pixel arrangement, avoiding moiré patterns caused by incomplete occlusion.

[0075] The embodiment of the present application can perform refined design on the physical parameters of the perforated plate to match the hole diameter, pitch with the LED pixels.

[0076] Among them, in an embodiment of the present application, the relational expressions of the opening size and the hole pitch of the perforated plate are:

[0077]

[0078] Among them, D x and D y are the horizontal and vertical aperture diameters of the square hole respectively, T x and T y are the horizontal and vertical center-to-center distances of adjacent square holes respectively, W and H are the horizontal and vertical physical sizes of a single LED lamp bead respectively, P and Q are the horizontal and vertical center-to-center distances of adjacent LED lamp beads respectively, k, l, m, n are all positive integers, and 1 ≤ k, l ≤ m, n ≤ 5. The parameters m, n are preferably selected as odd values and satisfy m = n or |m - n| ≤ 1 to suppress second-harmonic interference;

[0079] The light transmittance requirements for the square aperture and the hole pitch are:

[0080]

[0081] Among them, is the light transmittance of the perforated plate.

[0082] To ensure that the influence of construction errors on the periodic matching is less than the visible threshold, the opening size tolerance needs to satisfy:

[0083] ΔDx ≤0.05P, ΔD y ≤0.05Q,

[0084] In step S102, a mathematical relationship is established based on the relative parameters between the human eye and the LED display screen at the position satisfying the preset optimal observation position condition, so as to perform bevel cutting on the perforated plate structure and generate a cutting structure.

[0085] In the actual execution process, the embodiment of the present application can perform bevel cutting on the hole structure of the perforated plate, establish a mathematical relationship based on the relative parameters between the human eye and the LED display screen at the optimal observation position, so as to perform bevel cutting on the perforated plate structure and optimize the occlusion effect of the perforated plate thickness on the visual path. The embodiment of the present application performs bevel cutting on the holes of the perforated aluminum plate with a thickness of δ in the high H region, and the bevel angle is determined according to the human eye height and the line-of-sight angle at the optimal viewing distance, so as to eliminate the occlusion effect of the perforated plate thickness on the human viewing angle. This processing method reduces the occlusion of the line of sight by the thickness, avoids the resulting visual interference, and ensures a good viewing experience for the audience at different angles.

[0086] It should be noted that the preset optimal observation position condition can be set by those skilled in the art according to the actual situation, and no specific limitation is made here.

[0087] Among them, in an embodiment of the present application, the mathematical relationship between the bevel angle and the observation parameters is:

[0088]

[0089] Among them, H e is the eye height of the observer, taking H e ∈[1.2, 1.8] m, H p is the installation reference height of the perforated plate, L is the optimal observation distance, and Δθ safe is the safety margin angle, and its value is 5° - 10°.

[0090] In step S103, a diffusing optical film with an aperiodic irregular texture is covered on the perforated plate.

[0091] Specifically, the embodiment of the present application can cover a diffusing optical film with an aperiodic irregular texture on the perforated plate, and select a film material with no periodic pattern to avoid the problem that the regular film covering structure may exacerbate the interference fringes. The embodiment of the present application scatters the point light emission of the LED into surface light emission, thereby reducing the visual perception of moiré patterns. Selecting a film material with no periodic pattern avoids the problem that the regular film covering structure may exacerbate the interference fringes, and further improves the uniformity and softness of the display.

[0092] The embodiment of the present application can cover a diffusing optical film with an irregular texture on the surface of the perforated plate, convert the point light source into a surface light source, and reduce the perception of interference fringes.

[0093] In step S104, based on the matching relationship, the cutting structure, and the diffusive optical film, use the periodic function of the grille occlusion area to detect whether the physical coordinates of the sub-pixels of the LED display are located within the occlusion area. When it is detected that the periodic function is within the occlusion area, turn off the sub-pixels that meet the preset conditions to eliminate the moiré pattern caused by the superposition of the LED display and the perforated panel.

[0094] It can be understood that, as Figure 3 shown, the embodiments of the present application can design a dynamic LED bead extinguishing compensation algorithm to dynamically adjust the display content. According to the periodic function of the grille occlusion area, dynamically adjust the set of extinguished sub-pixels to compensate for the influence of construction errors on the occlusion area.

[0095] In the actual execution process, the algorithm elimination method in the embodiments of the present application includes: using the periodic function of the grille occlusion area to detect whether the physical coordinates of the sub-pixels of the LED display are located within the occlusion area. When it is detected that the periodic function is within the occlusion area, randomly select the sub-pixels that meet the conditions for the extinguishing operation to eliminate the moiré pattern caused by the superposition of the LED display and the perforated panel.

[0096] The algorithm in the embodiments of the present application compensates for the uneven occlusion of RGB beads caused by construction errors, reduces the influence of moiré patterns, ensures the integrity and smoothness of the display content, realizes a more flexible and efficient reduction or elimination of the moiré pattern phenomenon generated when the LED display and the perforated panel are used in combination, and is applicable to scenarios such as building media facades and stage perspective screens that require both display and light transmission functions. It not only improves the display clarity and visual experience but also expands the applicability of LED display technology in complex application scenarios, providing new ideas and methods for the future development of display technology.

[0097] It should be noted that the preset conditions can be set by those skilled in the art according to the actual situation, and no specific limitation is made here.

[0098] Among them, in an embodiment of the present application, first define the physical coordinates of the LED sub-pixels. For the LED lamp in the i-th row and j-th column, the physical positions of its RGB sub-pixels are:

[0099]

[0100] Among them, R, G, and B respectively refer to the red sub-pixel, green sub-pixel, and blue sub-pixel, P and Q are the horizontal and vertical spacings between the centers of adjacent LED beads, and are respectively the horizontal offsets of the red sub-pixel, green sub-pixel, and blue sub-pixel within the lamp, and are the vertical offsets of the red sub-pixel, green sub-pixel, and blue sub-pixel within the lamp, respectively, and the sub-pixel offsets satisfy and to make the RGB sub-pixels asymmetrically distributed in space;

[0101] Secondly, according to the period of the grating, the width of the occlusion bar, and the initial offset, a determination function for the occlusion area is constructed to define the grating occlusion area.

[0102] The grating is a periodic structure, and the calculation formula for the occlusion area is:

[0103]

[0104] where, T x and T y are the horizontal and vertical periods of the grating respectively, W x and W y are the horizontal and vertical widths of the occlusion bar respectively, and x0 and y0 are the horizontal and vertical initial offsets of the grating relative to the screen.

[0105] Finally, based on the periodic function of the grating occlusion area, a set of sub-pixels that meet the occlusion conditions is generated, and sub-pixels that meet the conditions are randomly selected for the extinguishing operation.

[0106] Among them, in an embodiment of the present application, if the physical coordinates (x k (i,j), y k (i,j) of the sub-pixel satisfy G(x k , y k ) = 1, then the pixel is included in the set of extinguished sub-pixels, and the extinguishable formula for the sub-pixel is:

[0107] P = {(i,j,k)|G(x k (i,j), y k (i,j)) = 1},

[0108] where, x k (i,j), y k (i,j) are the physical coordinates of the sub-pixel, and K ∈ {R, G, B} represents the color channel;

[0109] The actual extinguishing formula for the sub-pixel is:

[0110] P′ = random(P),

[0111] where, random(P) represents random sampling from P.

[0112] The moiré comprehensive elimination method for the superimposed display of an LED display screen and a perforated plate proposed according to the embodiments of the present application can optimize the pixel arrangement of the LED display screen, refine the design of the physical parameters of the perforated plate, cover the perforated plate with a diffuse diffusion optical film with a non-periodic regular texture, and design a dynamic bead extinguishing compensation algorithm to effectively reduce moiré, improve the display clarity and visual experience, and enhance the applicability of the LED display technology in complex scenarios. Thus, the problem in the related art is solved, that is, due to the difference in the aperture arrangement between the LED pixel structure and the perforated plate, the superimposed structure often causes visual interference such as moiré, which affects the display clarity and perception.

[0113] Next, a moiré comprehensive elimination device for the superimposed display of an LED display screen and a perforated plate proposed according to the embodiments of the present application will be described with reference to the accompanying drawings.

[0114] Figure 4 FIG. is a schematic structural diagram of a moiré comprehensive elimination device for the superimposed display of an LED display screen and a perforated plate according to an embodiment of the present application.

[0115] As Figure 4 shown, the moiré comprehensive elimination device 10 for the superimposed display of an LED display screen and a perforated plate includes: an optimization module 100, a construction module 200, a covering module 300, and an elimination module 400.

[0116] Specifically, the optimization module 100 is configured to optimize the pixel arrangement of the LED display screen based on the arrangement of the RGB chips within the pixels of the LED display screen in the direction perpendicular to the movement of the picture, so as to generate a final pixel arrangement that meets the preset optimization conditions, and configure the relative position and parameters of the perforated plate and the LED display screen based on the final pixel arrangement, so as to generate a matching relationship between the pixel arrangements of the perforated plate and the LED display screen according to the relative position and parameters.

[0117] The construction module 200 is configured to establish a mathematical relationship based on the relative parameters between the human eye and the LED display screen at a position that meets the preset optimal observation position conditions, so as to perform bevel cutting on the perforated plate structure and generate a cutting structure.

[0118] The covering module 300 is configured to cover the perforated plate with a diffuse scattering optical film having a non-periodic irregular texture.

[0119] The elimination module 400 is configured to detect whether the physical coordinates of the sub-pixels of the LED display screen are located within the occlusion area by using the periodic function of the grille occlusion area based on the matching relationship, the cutting structure, and the diffuse scattering optical film, and turn off the sub-pixels that meet the preset conditions when it is detected that the periodic function is located within the occlusion area, so as to eliminate the moiré of the superimposed display of the LED display screen and the perforated plate.

[0120] Optionally, in an embodiment of the present application, the configuration module 200 includes: an arrangement unit and a determination unit.

[0121] Among them, the arrangement unit is configured to arrange the square holes of the LED display screen according to a preset matrix to generate an arrangement result.

[0122] The determination unit is configured to, based on the arrangement result, set the parameters of the square aperture and the hole pitch of the LED display screen as the target multiples of the LED lamp bead size and the pixel pitch, and based on the target multiples, determine the matching relationship between the perforated board and the pixel arrangement of the LED display screen.

[0123] Optionally, in an embodiment of the present application, the relationship formula between the opening size and the hole pitch of the perforated board is:

[0124]

[0125] Among them, D x and D y are the horizontal and vertical aperture diameters of the square hole respectively, T x and T y are the horizontal and vertical center distances between adjacent square holes respectively, W and H are the horizontal and vertical physical dimensions of a single LED lamp bead respectively, P and Q are the horizontal and vertical center distances between adjacent LED lamp beads respectively, and k, l, m, and n are all positive integers;

[0126] The light transmittance requirement for the square aperture and the hole pitch is:

[0127]

[0128] Among them, is the light transmittance of the perforated board.

[0129] Optionally, in an embodiment of the present application, the mathematical relationship between the angle of the bevel and the observation parameter is:

[0130]

[0131] Among them, H e is the eye height of the observer, H p is the installation reference height of the perforated board, L is the optimal observation distance, and Δθ safe is the safety margin angle.

[0132] Optionally, in an embodiment of the present application, the physical coordinates of the sub-pixels of the LED display screen are:

[0133]

[0134] Wherein, R, G, and B respectively refer to the red sub-pixel, the green sub-pixel, and the blue sub-pixel, P and Q are respectively the horizontal and vertical spacings between the centers of adjacent LED beads, and are respectively the horizontal offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel inside the lamp, and are respectively the vertical offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel inside the lamp;

[0135] The calculation formula for the occlusion area is:

[0136]

[0137] Wherein, T x and T y are respectively the horizontal and vertical periods of the grating, W x and W y are respectively the horizontal and vertical widths of the occlusion bar, and x0 and y0 are respectively the horizontal and vertical initial offsets of the grating relative to the screen.

[0138] Optionally, in an embodiment of the present application, the extinguishable formula for the sub-pixel is:

[0139] P = {(i, j, k)|G(x k (i, j), y k (i, j)) = 1},

[0140] Wherein, x k (i, j), y k (i, j) are the physical coordinates of the sub-pixel, and K ∈ {R, G, B} represents the color channel;

[0141] The actual extinguishable formula for the sub-pixel is:

[0142] P' = random(P),

[0143] Wherein, random(P) represents random sampling from P.

[0144] It should be noted that the foregoing explanation of the embodiment of the method for comprehensively eliminating moiré patterns in the superposition display of the LED display screen and the perforated plate is also applicable to the device for comprehensively eliminating moiré patterns in the superposition display of the LED display screen and the perforated plate in this embodiment, and will not be elaborated here.

[0145] The moiré comprehensive elimination device for the superimposed display of an LED display screen and a perforated board proposed according to the embodiments of the present application can optimize the pixel arrangement of the LED display screen, conduct refined design on the physical parameters of the perforated board, cover a diffuse diffusion optical film with a non-periodic regular texture on the perforated board, and design a dynamic light bead extinguishing compensation algorithm, effectively reducing moiré, improving display clarity and visual experience, and enhancing the applicability of LED display technology in complex scenarios. Thus, it solves the problem in the related technology that due to the difference in the aperture arrangement between the LED pixel structure and the perforated board, the superimposed structure often causes visual interferences such as moiré, which will affect the clarity and visual perception of the display.

[0146] Figure 5 The structural schematic diagram of the electronic device provided by the embodiment of the present application. The electronic device may include:

[0147] A memory 501, a processor 502, and a computer program stored on the memory 501 and executable on the processor 502.

[0148] When the processor 502 executes the program, it implements the moiré comprehensive elimination method for the superimposed display of the LED display screen and the perforated board provided in the above embodiment.

[0149] Furthermore, the electronic device further includes:

[0150] A communication interface 503 for communication between the memory 501 and the processor 502.

[0151] The memory 501 is used to store a computer program executable on the processor 502.

[0152] The memory 501 may include a high-speed RAM memory, and may also include a non-volatile memory, such as at least one disk memory.

[0153] If the memory 501, the processor 502, and the communication interface 503 are independently implemented, the communication interface 503, the memory 501, and the processor 502 can be interconnected through a bus and complete communication with each other. 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 sake of representation, Figure 5 only a thick line is shown in the figure, but it does not mean that there is only one bus or one type of bus.

[0154] Optionally, in a specific implementation, if the memory 501, the processor 502, and the communication interface 503 are integrated on a single chip, the memory 501, the processor 502, and the communication interface 503 can communicate with each other through an internal interface.

[0155] The processor 502 may be a central processing unit (CPU for short), or an application specific integrated circuit (ASIC for short), or one or more integrated circuits configured to implement the embodiments of the present application.

[0156] This embodiment also provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the above-mentioned moiré comprehensive elimination method for superimposed display of an LED display screen and a perforated plate is implemented.

[0157] The embodiments of the present application also provide a computer program product, on which a computer program is stored. When the program is executed by a processor, the above-mentioned moiré comprehensive elimination method for superimposed display of an LED display screen and a perforated plate is implemented.

[0158] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or N embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0159] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0160] Any process or method description represented in a flowchart or otherwise described herein can be understood to represent a module, segment, or portion of code including one or N executable instructions for implementing a customized logical function or process, and the scope of the preferred embodiments of the present application includes additional implementations, where the functions may be executed in a substantially simultaneous manner or in the reverse order according to the functions involved, rather than in the order shown or discussed, which should be understood by those skilled in the art to which the embodiments of the present application pertain.

[0161] The logic and / or steps represented in a flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing a logical function, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in conjunction with these instruction execution systems, apparatus, or devices. For the purposes of this specification, a "computer-readable medium" can be any device that can contain, store, communicate, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include the following: an electrical connection (electronic device) having one or N wirings, a portable computer diskette (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium can even be paper or other suitable media on which the program can be printed, as the program can be obtained electronically by optically scanning the paper or other media, followed by editing, interpretation, or other suitable processing as necessary, and then stored in a computer memory.

[0162] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one or a combination of the following techniques well known in the art can be used: discrete logic circuits having logic gate circuits for implementing logical functions on data signals, application specific integrated circuits having suitable combinational logic gate circuits, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

[0163] Those of ordinary skill in the art can understand that all or part of the steps carried out in the methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiments.

[0164] In addition, in each of the embodiments of the present application, each functional unit can be integrated in a processing module, or each unit can exist physically alone, or two or more units can be integrated in a module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0165] The storage medium mentioned above can be a read-only memory, a magnetic disk, an optical disc, etc. Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present application.

Claims

1. A method for comprehensively eliminating moiré patterns in the superimposed display of an LED display screen and a perforated plate, characterized in that, The following steps are involved: Based on the arrangement of the RGB chips in the pixels of the LED display screen in a direction perpendicular to the movement of the picture, the pixel arrangement of the LED display screen is optimized to generate a final pixel arrangement that meets preset optimization conditions, and based on the final pixel arrangement, the relative position and parameters of the perforated plate and the LED display screen are configured to generate a matching relationship between the pixel arrangement of the perforated plate and the LED display screen according to the relative position and the parameters; A mathematical relationship is established based on relative parameters of the human eye and the LED display screen at a preset optimal observation position to perform oblique cutting of the perforated plate structure to generate a cutting structure; Covering the perforated plate with a diffuse scattering optical film having a non-periodic irregular texture; Based on the matching relationship, the cutting structure and the diffuse scattering optical film, the periodic function of the grille blocking area is used to detect whether the physical coordinates of the sub-pixels of the LED display are located within the blocking area. When it is detected that the periodic function is located within the blocking area, the sub-pixels that meet the preset conditions are extinguished to eliminate the moiré patterns displayed by the superimposed LED display and the perforated plate.

2. The method according to claim 1, wherein Generating a matching relationship between the perforated plate and the pixel arrangement of the LED display screen according to the relative position and the parameters includes: Arranging the square holes of the LED display screen according to a preset matrix to generate an arrangement result; Based on the arrangement result, the parameters of the square aperture and hole spacing of the LED display are set as target multiples of the LED lamp bead size and pixel spacing, and based on the target multiples, the matching relationship between the perforated plate and the pixel arrangement of the LED display is determined.

3. The method according to claim 2, wherein The relationship between the hole size of the perforated plate and the hole spacing is: where D x and D y are the horizontal and vertical aperture diameters of the square hole respectively, T x and T y are the horizontal and vertical center distances between adjacent square holes respectively, W and H are the horizontal and vertical physical dimensions of a single LED lamp bead respectively, P and Q are the horizontal and vertical center distances between adjacent LED lamp beads respectively, and k, l, m, and n are all positive integers; The light transmittance requirement of the square aperture and the hole spacing is: Among them, is the light transmittance of the perforated plate.

4. The method according to claim 1, characterized in that, The mathematical relationship between the angle of the oblique angle and the observation parameter is: Among them, H e is the eye height of the observer, H p is the installation reference height of the perforated plate, L is the optimal observation distance, and Δθ safe is the safety margin angle.

5. The method according to claim 1, characterized in that, The physical coordinates of the sub-pixels of the LED display are: Wherein, R, G, and B respectively refer to the red sub-pixel, the green sub-pixel, and the blue sub-pixel, P and Q are respectively the horizontal and vertical spacings between the centers of adjacent LED lamp beads, and are respectively the horizontal offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel within the lamp, and are respectively the vertical offsets of the red sub-pixel, the green sub-pixel, and the blue sub-pixel within the lamp; The calculation formula of the occlusion area is: Among them, T x and T y are the horizontal and vertical periods of the grating respectively, W x and W y are the horizontal and vertical widths of the occlusion bar respectively, and x0 and y0 are the horizontal and vertical initial offsets of the grating relative to the screen respectively.

6. The method according to claim 1, characterized in that, The extinguishable formula of the sub-pixel is: P = {(i, j, k) | G(x k (i, j), y k (i, j)) = 1}, where x k (i, j), y k (i, j) are the physical coordinates of the sub-pixel, and k ∈ {R, G, B} represents the color channel; The actual extinguishing formula of the sub-pixel is: P′=random(P) Among them, random(P) means random sampling from P.

7. A moiré comprehensive elimination device for superposed display of an LED display screen and a perforated plate, characterized in that, include: an optimization module for optimizing the pixel arrangement of the LED display based on the arrangement of the RGB chips within the pixels of the LED display in a direction perpendicular to the motion of the picture, so as to generate a final pixel arrangement that satisfies preset optimization conditions, and configuring the relative position and parameters of the perforated plate and the LED display based on the final pixel arrangement, so as to generate a matching relationship between the pixel arrangement of the perforated plate and the LED display according to the relative position and the parameters; An establishment module is used to establish a mathematical relationship based on relative parameters of the human eye and the LED display screen at a preset optimal observation position condition, so as to perform oblique cutting of the perforated plate structure and generate a cutting structure; A covering module, used for covering the perforated plate with a diffuse scattering optical film having a non-periodic and irregular texture; An elimination module, configured to detect whether the physical coordinates of sub-pixels of the LED display screen are located within the occlusion area by using the periodic function of the grille occlusion area based on the matching relationship, the cutting structure, and the diffusive optical film, and turn off the sub-pixels meeting the preset conditions when it is detected that the periodic function is within the occlusion area, so as to eliminate the moiré pattern formed by the superposition of the LED display screen and the perforated plate.

8. An electronic device, characterized in that, It includes: A memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor executes the program to implement the comprehensive moiré elimination method for the superposition display of the LED display screen and the perforated plate according to any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the comprehensive moiré elimination method for the superposition display of the LED display screen and the perforated plate according to any one of claims 1-6.

10. A computer program product, comprising a computer program, characterized in that, The computer program is executed to implement the comprehensive moiré elimination method for the superposition display of the LED display screen and the perforated plate according to any one of claims 1-6.

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