Wide-color-gamut LED display module control method and device, equipment and medium

Abstract

The invention relates to the technical field of LED display control, solves the problem that in the prior art, a method for improving the color gamut coverage rate of an LED display screen causes obvious increase of system complexity and cost, and provides a wide-color-gamut LED display module control method, device, equipment and medium. The method comprises the following steps: acquiring a target green light component, a target red light component and a target blue light component of each pixel according to an input image signal of an LED display module; according to the target green light component and a dual-wavelength mixing algorithm, the driving ratio of the first green light lamp bead to the second green light lamp bead is determined; according to the driving ratio, driving signals are output to the independent driving channels of the first green light lamp bead and the second green light lamp bead, and green light mixing corresponding to the driving ratio is achieved; and driving and controlling red light LED lamp beads and blue light LED lamp beads to work according to the target red light component and the target blue light component. According to the invention, under the condition that the hardware complexity is not increased, the BT.2020 color gamut coverage rate and the coincidence rate are remarkably improved, and the requirement of ultra-high-definition display for high-quality colors is met.

Description

Technical Field

[0001] This invention relates to the field of LED display control technology, and in particular to a method, apparatus, equipment and medium for controlling a wide color gamut LED display module. Background Technology

[0002] With the development of ultra-high-definition display technology, the International Telecommunication Union (ITU) released the BT.2020 color standard, becoming the next-generation color expression standard in the television and display equipment field. Compared with previous color gamut standards, the BT.2020 standard significantly improves the color gamut coverage and places higher demands on the color performance capabilities of display devices. LED displays, due to their use of LED chip direct-view technology, have a natural advantage in color performance and have become an important technical route for high color reproduction displays.

[0003] Currently, conventional LED displays can achieve approximately 80% BT.2020 color gamut coverage and overlap, demonstrating excellent overall performance. However, about 20% of colors are still not fully reproduced, limiting further improvements in display quality. Existing methods for improving color gamut mostly involve adding LEDs of additional colors next to existing pixels. While this expands the color gamut range, it significantly increases the complexity of the display module structure and manufacturing costs, hindering large-scale application. Chinese patent CN115294927A discloses a color compensation method, storage medium, and system based on pixel reuse. The method addresses the issue of visual dark bars appearing in red or blue single-primary-color displays using pixel reuse structures. First, it collects the luminance and chromaticity information of R, G, and B single-primary-color images to identify the light-emitting diodes (LEDs) of corresponding monochrome display pixels. Then, while maintaining the brightness level of the red or blue single-primary-color pixels, it performs brightness enhancement processing on the green and another primary-color pixels in the virtual pixel of the red or blue LED that is reused. Finally, it uses a mixed color of the three primary colors instead of a single primary color as the base color, causing the position of the light-emitting point to shift towards the center of the virtual pixel, thereby reducing the visual spacing and improving the graininess and dark bar phenomenon in single-primary-color displays. However, this patent solution primarily addresses the display uniformity problem under pixel reuse structures, improving the visual dark bar phenomenon in single-primary-color displays through brightness compensation and color mixing. Its technical goal is to improve display consistency rather than expand the display color gamut. From a color space perspective, this scheme does not change the spectral positions of the three primary colors (red, green, and blue), and cannot break through the color gamut boundaries of the RGB triangle itself, thus having limited effect on improving coverage of high color gamut standards such as BT.2020. Furthermore, its compensation process relies on image analysis and dynamic brightness adjustment, increasing the complexity of the system algorithm, but lacks fundamental technical means to improve color gamut capabilities.

[0004] Therefore, how to further improve the BT.2020 color gamut coverage of LED displays without significantly increasing system complexity and cost has become a pressing technical challenge in this field. Summary of the Invention

[0005] In view of this, the present invention provides a wide color gamut LED display module control method, apparatus, device and medium to solve the problem that the existing methods for improving the color gamut coverage of LED displays lead to a significant increase in system complexity and cost.

[0006] The technical solution adopted in this invention is: In a first aspect, the present invention provides a wide color gamut LED display module control method, wherein the LED display module includes an LED display substrate and a plurality of LED beads disposed on the LED display substrate; the LED beads include a first LED bead having a first emission color, a second LED bead having a second emission color, and a third LED bead having a third emission color; the first emission color, the second emission color, and the third emission color are all different; the third LED bead includes a fourth LED bead and a fifth LED bead having different emission wavelengths; the fourth LED bead and the fifth LED bead are arranged alternately on the LED display substrate and are diagonally distributed within a preset pixel area; the fourth LED bead and the fifth LED bead are respectively connected to independent driving control channels to achieve dual-wavelength green light mixed output within the same display area; if the first LED bead is a red LED bead and the second LED bead is a blue LED bead, the third LED bead is a green LED bead, the fourth LED bead is a first green LED bead, and the fifth LED bead is a second green LED bead, then the control method includes: Based on the input image signal of the LED display module, the target green light component, target red light component and target blue light component of each pixel are obtained; Based on the target green light component and the preset dual-wavelength mixing algorithm, the driving ratio of the first green light LED and the second green light LED is determined; According to the driving ratio, driving signals are output to the independent driving channels of the first green LED and the second green LED respectively to achieve green light mixing corresponding to the driving ratio; Based on the target red light component and the target blue light component, the red light LED and the blue light LED are driven and controlled to work, thereby realizing wide color gamut image display.

[0007] Preferably, determining the driving ratio of the first green LED and the second green LED based on the target green light component and a preset dual-wavelength mixing algorithm includes: Based on the target green light component, obtain the green light component value corresponding to the adjacent pixel; The superimposed green light component is calculated based on the green light component value; The driving ratio is determined based on the superimposed green light component and the preset green light mixing mapping relationship.

[0008] Preferably, obtaining the green light component values ​​corresponding to adjacent pixels based on the target green light component includes: Get the current pixel position and the target green light component of the current pixel; Based on the current pixel position, determine the adjacent pixel positions corresponding to the current pixel, wherein the adjacent pixel positions include a first pixel position that is adjacent in the horizontal direction and a second pixel position that is adjacent in the vertical direction; Based on the positions of the adjacent pixels, the target green light component of the adjacent pixels is obtained; Match the target green light component of the current pixel with the target green light components of its neighboring pixels to construct a set of green light components containing the current pixel and its neighboring pixels; The green light component set is subjected to outlier detection and data verification to obtain the green light component values.

[0009] Preferably, determining the driving ratio based on the superimposed green light component and a preset green light mixing mapping relationship includes: A green light mixing mapping table is established based on the color data corresponding to different green light mixing ratios measured in advance. Based on the superimposed green light components, determine the corresponding mapping interval in the green light mixing mapping table; The driving ratio is calculated based on the color data within the mapping interval.

[0010] Preferably, calculating the driving ratio based on the color data within the mapping interval includes: Based on the color data, obtain the first driving reference value corresponding to the first green LED and the second driving reference value corresponding to the second green LED; Based on the first driving reference value and the second driving reference value, and combined with the target green light component, the initial driving ratio is calculated by interpolation. The initial drive ratio is adjusted according to the preset grayscale level to obtain the drive ratio.

[0011] Preferably, adjusting the initial drive ratio according to a preset grayscale level to obtain the drive ratio includes: Based on the preset grayscale levels, obtain the corresponding grayscale adjustment parameters; The initial drive ratio is weighted and adjusted according to the grayscale adjustment parameters to obtain the adjusted drive ratio. Determine whether the adjusted drive ratio meets the requirements for drive stability and color consistency, and obtain the determination result; Based on the judgment result, the adjusted drive ratio is further corrected to obtain the drive ratio.

[0012] Preferably, the determination of whether the adjusted drive ratio meets the requirements for drive stability and color consistency, and the determination result includes: Based on the adjusted drive ratio, the output current and voltage parameters of the LED beads are calculated to obtain the electrical drive parameters; Based on the electrical drive parameters, the stability index of the drive signal is evaluated to obtain the drive stability evaluation result, wherein the stability index includes current fluctuation amplitude and response time; The expected color coordinate values ​​are calculated based on the adjusted drive ratio; The color coordinate values ​​are compared with the target color coordinates to obtain the color deviation value; Based on the driving stability evaluation results and color deviation values, it is determined whether they meet the preset driving stability threshold and color consistency threshold, and the determination result is obtained.

[0013] In a second aspect, the present invention provides a wide color gamut LED display module control device, the device comprising: The target light component acquisition module is used to acquire the target green light component, target red light component and target blue light component of each pixel according to the input image signal of the LED display module; The drive ratio calculation module is used to determine the drive ratio of the first green LED and the second green LED based on the target green light component and a preset dual-wavelength mixing algorithm. The drive signal output module is used to output drive signals to the independent drive channels of the first green LED and the second green LED respectively according to the drive ratio, so as to realize the green light mixing corresponding to the drive ratio. The drive control module is used to drive and control the red LED beads and the blue LED beads to work according to the target red light component and the target blue light component, so as to realize wide color gamut image display.

[0014] Thirdly, embodiments of the present invention also provide an electronic device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method of the first aspect described above.

[0015] Fourthly, embodiments of the present invention also provide a storage medium storing computer program instructions thereon, which, when executed by a processor, implement the method of the first aspect described above.

[0016] In summary, the beneficial effects of the present invention are as follows: This invention provides a wide color gamut LED display module control method, apparatus, device, and medium. The method includes: acquiring the target green light component, target red light component, and target blue light component of each pixel based on the input image signal of the LED display module; determining the driving ratio of a first green LED and a second green LED based on the target green light component and a preset dual-wavelength mixing algorithm; outputting driving signals to the independent driving channels of the first and second green LEDs according to the driving ratio to achieve green light mixing corresponding to the driving ratio; and driving and controlling the red LED and the blue LED based on the target red light component and the target blue light component to achieve wide color gamut image display. This invention achieves independent driving control of the first and second green LEDs by using dual-wavelength green LEDs with different emission wavelengths in the LED display module and arranging them in an alternating and diagonally distributed manner within the same display area. By utilizing the target green light component of each pixel in the input image signal and combining it with a preset dual-wavelength mixing algorithm, the driving ratio of the two green LED chips is accurately calculated and determined. Corresponding driving signals are output through independent driving channels, achieving efficient and precise green light mixing output, thereby expanding the green light spectral range and improving color performance. Furthermore, by combining the driving control of red and blue LED chips, the overall color gamut coverage and color reproduction capability of the display module are improved. In determining the driving ratio, this scheme collects and superimposes the green light component values ​​of adjacent pixels, using a preset green light mixing mapping table to accurately map the driving ratio, ensuring color uniformity and accuracy. To ensure the stability and consistency of the display effect, the scheme introduces a driving ratio adjustment mechanism based on preset grayscale levels. By acquiring grayscale adjustment parameters and weighting the driving ratio, and combining the calculation of electrical driving parameters and color coordinate comparison, the stability and color deviation of the driving signal are dynamically evaluated and corrected, ensuring that the final displayed image meets high color gamut standards while possessing excellent driving stability and color consistency. This solution effectively addresses the issues of high system complexity and cost associated with increasing color gamut by adding extra color LEDs in existing technologies. It achieves a significant improvement in BT.2020 color gamut coverage and overlap rate without increasing hardware complexity, thus meeting the high-quality color requirements of ultra-high-definition displays. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of the present invention.

[0018] Figure 1 This is a schematic diagram illustrating the overall operation of the wide color gamut LED display module control method in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the diagonally staggered arrangement of dual-wavelength green LED beads in the RGB pixel unit of the present invention in Embodiment 1; Figure 3 This is a schematic diagram of the color gamut expansion of an LED display screen using dual-wavelength green light in Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the staggered layout of the strip-shaped dual green light-emitting units in adjacent pixels in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the display color gamut formed by the superposition of RGB sub-color gamuts under the condition of dual-wavelength green light mixing in Embodiment 1 of the present invention; Figure 6 This is a structural block diagram of the wide color gamut LED display module control device in Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the electronic device in Embodiment 3 of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, the element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Where there is no conflict, embodiments of the present invention and the various features thereof can be combined with each other, all of which are within the scope of protection of the present invention.

[0020] Example 1 Please see Figure 1Embodiment 1 of this invention discloses a wide color gamut LED display module control method. The LED display module includes an LED display substrate and a plurality of LED beads disposed on the LED display substrate. The LED beads include a first LED bead having a first emission color, a second LED bead having a second emission color, and a third LED bead having a third emission color. The first emission color, the second emission color, and the third emission color are all different. The third LED bead includes a fourth LED bead and a fifth LED bead with different emission wavelengths. The fourth LED bead and the fifth LED bead are arranged alternately on the LED display substrate and are diagonally distributed within a preset pixel area. The fourth LED bead and the fifth LED bead are respectively connected to independent driving control channels to achieve dual-wavelength green light mixing output within the same display area. Specifically, a wide color gamut display effect is achieved by arranging LED beads of multiple emitting colors on an LED display substrate. The LED display module includes an LED display substrate for carrying the light-emitting units. Several light-emitting units are arranged on the LED display substrate, each composed of LED beads of different colors, including a first LED bead with a first emitting color, a second LED bead with a second emitting color, and a third LED bead with a third emitting color. These three emitting colors are independent of each other, providing red, green, and blue primary color light sources respectively. Furthermore, the third LED bead includes a fourth LED bead and a fifth LED bead with different emitting wavelengths. Both belong to the same wavelength band but have different emitting wavelengths. By arranging them alternately on the substrate, they form a diagonal distribution structure within the same preset pixel area. This structure helps reduce color shift caused by uneven monochromatic distribution and improves overall color uniformity and brightness consistency. The fourth and fifth LED beads are connected to independent drive control channels, thereby dynamically adjusting the mixing ratio of dual-wavelength green light for different display content, achieving higher color saturation and a wider color gamut coverage for display output.

[0021] Please see Figure 2 Taking a fourth and fifth LED bead both being green as an example, on a traditional LED display substrate with RGB pixels arranged horizontally or vertically, two green LED beads with different center wavelengths are arranged at intervals in each pixel position. Taking a 2×2 pixel unit as an example, the first green LED bead G1 and the second green LED bead G2 are arranged diagonally and alternately within the unit, thereby uniformly introducing the two green light bands in space. At the driving control end, G1 and G2 are respectively connected to independent control ICs or independent driving channels to realize the individual lighting and brightness ratio adjustment of the two green lights.

[0022] Please see Figure 3 , Figure 3This diagram illustrates the color gamut on the CIE chromaticity coordinate graph, comparing the color gamut range that the display screen can cover when using two different green wavelength LEDs. The solid outline corresponds to the BT.2020 standard color gamut, while the dashed triangle represents the actual display color gamut formed by red light (R), blue light (B), and two green light sources, G1 and G2. It can be seen that G1 and G2 are located at different green wavelengths, and their chromaticity coordinates are spaced apart within the green region. By simultaneously introducing two green spectra into the system, the green vertex is no longer limited to a single location, thus significantly expanding the green boundary outward within the red-green-blue color gamut triangle. This makes the overall display color gamut closer to or even covers the BT.2020 color gamut range, intuitively demonstrating that this invention improves the display color gamut width.

[0023] If the first LED bead is a red LED bead and the second LED bead is a blue LED bead, the third LED bead is a green LED bead, the fourth LED bead is a first green LED bead, and the fifth LED bead is a second green LED bead, then the control method includes: Based on the input image signal of the LED display module, the target green light component, target red light component and target blue light component of each pixel are obtained; Specifically, the input image signal refers to the digital image data output by the display control system or video source, which contains the three primary color information of each pixel in the color space, such as RGB components or a gamma-corrected luminance signal. After parsing and format conversion of this signal, the target red light component, target green light component, and target blue light component corresponding to the physical pixel unit are extracted according to the pixel mapping relationship of the display module. The target components can be represented as a normalized luminance ratio or a corresponding current setting value, used to guide the driving output of each color LED. In this process, the control system performs color space decoding, bit depth adjustment, and gamma linearization processing on the input signal to ensure that the subsequent light intensity control is linearly related to the brightness perceived by the human eye. Through this component acquisition, the system can establish a precise color target for each pixel, providing basic data support for the dual-wavelength green light mixing algorithm and the synchronous control of the red and blue channels, thereby achieving a high consistency match between the input image signal and the LED luminous characteristics, reducing color distortion, and improving the accuracy and detail of the displayed image.

[0024] Based on the target green light component and the preset dual-wavelength mixing algorithm, the driving ratio of the first green light LED and the second green light LED is determined; Specifically, the preset dual-wavelength mixing algorithm can be a lookup method based on an experimentally measured green light mixing mapping table supplemented by interpolation calculation, or it can adopt a numerical solution method of chromaticity coordinate inverse calculation, or a mapper implemented in the form of a regression model or a lightweight neural network. The input is the target green light component of each pixel, and it can simultaneously receive the neighborhood superposition value and gray level as auxiliary inputs, thereby inversely calculating the relative driving share that should be undertaken by the first green light chip and the second green light chip. The fundamental purpose of designing this algorithm is to accurately map the green channel requirements at the image signal level to the physical driving space, and make full use of the complementarity of the two green lights in chromaticity to expand the reachable green color coordinates, thereby approximating the target color under different brightness and color saturation conditions. In implementation, the target green light component is first linearized and subjected to inverse gamma transformation. Then, multiple pre-calibrated dual-wavelength mixing ratios and corresponding chromaticity data are combined for rapid interval lookup. If the lookup result is located in the table gap, linear or higher-order interpolation is used to obtain the initial drive ratio. Subsequently, adjustments are made based on grayscale mapping rules to ensure brightness consistency. If necessary, current and response time constraints are applied to the initial ratio, and the chromaticity coordinate error is corrected in reverse through a fitting model or optimizer. Finally, the output is converted into the current setting or PWM duty cycle of each drive channel. The beneficial effects of this method are that it can significantly improve the chromaticity adjustment range and color reproduction accuracy of the green component while ensuring local brightness and grayscale consistency, reduce the color shift caused by a single green light peak, and improve color stability and drive robustness in high-saturation scenes.

[0025] According to the driving ratio, driving signals are output to the independent driving channels of the first green LED and the second green LED respectively to achieve green light mixing corresponding to the driving ratio; Specifically, when outputting drive signals to the independent drive channels of the first and second green LEDs according to the drive ratio, the ratio obtained by the algorithm needs to be converted into a physical quantity that can be recognized by the drive hardware, such as setting the current value or PWM duty cycle. In the conversion process, actual constraints such as driver resolution, linearity error and response time should be considered. A digital-to-analog converter, constant current source array or high-resolution PWM controller can be used to send the signal. In order to ensure the accurate superposition of the two types of green light in time and amplitude, the drive channel should support synchronous triggering or phase alignment. If necessary, time-division multiplexing and sub-pixel-level mapping should be used in the row and column scanning architecture, and differential delay correction should be performed on the duty cycle to avoid phase interference. In the implementation process, current detection and temperature compensation loops should be introduced to compare the actual output current with the target value in a closed loop and adjust the drive command through PID or adaptive correction. At the same time, speed limit and filtering should be implemented for sudden drive ratio changes to eliminate visible flicker and sudden artifacts. In order to take into account different brightness levels and high dynamic range scenarios, a grayscale mapping table and linearization curve can also be superimposed on the drive signal to make the output spectrum closer to the target color coordinates. These measures ensure that the two types of green light are stably superimposed in a set ratio, reduce color deviation and brightness unevenness caused by driving errors or temperature drift, improve local and overall color consistency, and enhance the system's color reproduction capability and visual smoothness in high-saturation, fast-scene switching scenarios.

[0026] Please see Figure 4 , Figure 4 This illustration depicts a dual-green light-emitting structure layout at the pixel unit level in this embodiment of the invention. Unlike the traditional single-point RGB arrangement, each pixel's green light-emitting unit consists of a strip-shaped first green G1 or second green G2, horizontally spanning between adjacent red light R and blue light B. Within a 2×2 pixel area, the upper row of pixels uses an R-G1-B structure on the left and an R-G2-B structure on the right, while the lower row of pixels uses the opposite configuration of R-G2-B and R-G1-B, creating a staggered and symmetrical spatial distribution of G1 and G2. This strip-shaped green light-emitting structure enhances the coverage area and light mixing uniformity of green light within the pixel area. Furthermore, by alternately introducing different wavelengths of green light between adjacent pixels, it achieves uniform superposition of multi-band green light on the display panel, providing a structural foundation for subsequent driving control to achieve a wider color gamut and smoother color transitions.

[0027] Please see Figure 5 , Figure 5This diagram illustrates the color gamut formation mechanism under dual-wavelength green light mixing conditions, as shown in the CIE chromaticity coordinate diagram. Red light R and blue light B are located at two fixed vertices of the color gamut, while the first green light G1 and the second green light G2 are located within the green spectral region, forming a line segment G1G2. Depending on the driving ratio of the two green lights, the resulting green point G can slide continuously along this G1-G2 line segment, with its position satisfying G = kG1 + (1−k)G2 and 0 ≤ k ≤ 1. Thus, each determined G position, together with R and B, constitutes a ΔRGB sub-color gamut, illustrated in the diagram with multiple sets of triangular outlines. When G1 and G2 are mixed proportionally using different gray levels, these ΔRGB sub-color gamuts are continuously superimposed in the chromaticity space, ultimately forming a larger overall display color gamut. This diagram visually reflects how the traditional single RGB triangular color gamut is expanded into an enhanced color gamut structure composed of multiple superimposed triangles through proportional mixing of two green wavelengths.

[0028] Based on the target red light component and the target blue light component, the red light LED and the blue light LED are driven and controlled to work, thereby realizing wide color gamut image display.

[0029] Specifically, based on the target red and blue light components, the corresponding values ​​are converted into driving instructions for the red and blue LEDs. These instructions are typically expressed as current magnitude or PWM signal duty cycle. The driving module precisely transmits the signals to each LED through a constant current source or digital dimming circuit, ensuring that the luminous intensity of red and blue light accurately reflects the color requirements of the input image. During the control process, calibration parameters and temperature compensation mechanisms are combined to adjust the current drive to suppress color temperature drift and brightness decay, maintaining color stability. The independent driving channels for red and blue light synchronously respond to the image frame rate, and together with the mixed output of dual-wavelength green light, they construct a complete wide color gamut luminescence system, thereby achieving efficient coverage of standard color spaces such as Rec.2020 or DCI-P3. This method not only improves the color vibrancy and realism of the displayed image but also enhances color consistency and visual experience in dynamic videos and high-contrast scenes.

[0030] Preferably, determining the driving ratio of the first green LED and the second green LED based on the target green light component and a preset dual-wavelength mixing algorithm includes: Based on the target green light component, obtain the green light component value corresponding to the adjacent pixel; Specifically, when acquiring the green light component values ​​of neighboring pixels corresponding to the target green light component, the position of the current pixel is first determined, and its horizontal and vertical adjacent pixel units are identified. The green light components of these neighboring pixels are obtained by reading the green channel data from the input image signal. This process ensures that not only the green light intensity of a single pixel is considered, but also the green light information of the surrounding area is covered, reflecting the changing characteristics of the local color environment. The acquisition of the green light components of neighboring pixels can be achieved through caching mechanisms, parallel data access, or dedicated image processing units to ensure high-speed and real-time data acquisition. By integrating this neighborhood data, the system can more accurately evaluate the green light distribution in the area where the current pixel is located, providing more comprehensive input information for subsequent green light mixing algorithms, thereby improving the spatial uniformity of the green light output and the overall color quality.

[0031] The superimposed green light component is calculated based on the green light component value; Specifically, the calculation of the superimposed green light component is based on the green light component values ​​of the current pixel and its neighboring pixels. These values ​​are obtained by spatially weighting and summing them. The weighting coefficients are typically dynamically adjusted based on the distance between pixels, the spatial weight distribution of visual perception, or local texture features of the image, ensuring that neighboring pixels contribute more to the superimposed result while pixels further away have less influence. This calculation process can employ image processing techniques such as convolution filtering, weighted averaging, or Gaussian smoothing, aiming to simulate the human eye's spatial integration ability of green light brightness and reduce color fluctuations caused by single-point anomalies or noise. Through the smoothing processing of the superimposed green light component, a more continuous and stable green light brightness reference can be obtained, providing a more reliable input for determining the subsequent driving ratio, thereby optimizing the overall color uniformity and visual comfort of the display.

[0032] The driving ratio is determined based on the superimposed green light component and the preset green light mixing mapping relationship.

[0033] Specifically, based on the superimposed green light component, the system maps the weighted green light intensity to the corresponding driving ratio of the first and second green LED chips by consulting a pre-established green light mixing mapping relationship. This mapping relationship typically exists in the form of a lookup table or mathematical model, derived from experimental measurements and fitting of color data and spectral characteristics under different green light mixing ratios. This mapping process combines visually perceived green light brightness with physical driving parameters, achieving precise conversion from input signal to hardware control. By determining this driving ratio, the dual-wavelength green light emitting units can work collaboratively in the optimal ratio, fully utilizing the chromaticity difference between the two green lights to improve the color reproduction and color gamut coverage of the display module, mitigating the color limitations imposed by traditional single-wavelength green light, and simultaneously enhancing the uniformity and stability of the displayed image.

[0034] Preferably, obtaining the green light component values ​​corresponding to adjacent pixels based on the target green light component includes: Get the current pixel position and the target green light component of the current pixel; Specifically, the current pixel position refers to the spatial coordinates of a single pixel on the LED display substrate, typically represented by a two-dimensional coordinate system, which facilitates the system's rapid location of the physical light-emitting unit corresponding to that pixel. The target green light component refers to the numerical representation of that pixel in the green channel of the input image signal. This may be a digitized brightness level or a linearized light intensity ratio, representing the green light intensity required to display that pixel. The process of acquiring these two pieces of information usually includes image decoding, color space conversion, and pixel index mapping, ensuring that subsequent calculations can be performed based on the accurate spatial position and corresponding green light brightness data, thereby achieving precise control over the green light output of that pixel.

[0035] Based on the current pixel position, determine the adjacent pixel positions corresponding to the current pixel, wherein the adjacent pixel positions include a first pixel position that is adjacent in the horizontal direction and a second pixel position that is adjacent in the vertical direction; Specifically, the current pixel position is used as a two-dimensional coordinate point. The system determines the positions of its adjacent pixels through coordinate addition and subtraction operations. Specifically, the first adjacent pixel position in the horizontal direction is the pixel coordinate immediately to the left or right of the current pixel in the same row, and the second adjacent pixel position in the vertical direction is the pixel coordinate immediately above or below the current pixel in the same column. By clearly defining the positions of adjacent pixels, the system can accurately access the target green light component of surrounding pixels, forming a local spatial green light data set. This provides the necessary neighborhood information for the subsequent calculation of the green light mixing driving ratio, thereby achieving smooth color transitions and improved visual consistency.

[0036] Based on the positions of the adjacent pixels, the target green light component of the adjacent pixels is obtained; Specifically, based on the determined positions of adjacent pixels, the system extracts the target green light component of the adjacent pixels by accessing the green channel data corresponding to the input image signal. This component is represented as numerical green light brightness information, which is usually linearized or gamma-corrected to conform to the visual response characteristics of the human eye. This process relies on a high-speed caching mechanism or a dedicated image processing module to achieve rapid retrieval and synchronous reading of neighboring pixel data, ensuring that the acquired green light component accurately reflects the color requirements of the adjacent area, providing a complete and reliable input basis for subsequent green light driving ratio calculations.

[0037] Match the target green light component of the current pixel with the target green light components of its neighboring pixels to construct a set of green light components containing the current pixel and its neighboring pixels; Specifically, when matching the target green light component of the current pixel with the corresponding green light components of its neighboring pixels, the system integrates these components in a predetermined order through unified coordinate mapping and data structure, forming a set containing the green light information of the current pixel and its horizontal and vertical neighboring pixels. This set, as a representation of the green light brightness of a local region, can comprehensively reflect the color distribution characteristics of the surrounding environment of the pixel, providing spatial continuity and contextual support for subsequent calculations. This enhances the driving algorithm's responsiveness to subtle changes and edge information, and facilitates the achievement of smooth and uniform green light mixing output.

[0038] The green light component set is subjected to outlier detection and data verification to obtain the green light component values.

[0039] Specifically, when performing outlier detection and data verification on the green light component set, the system employs statistical analysis methods such as median filtering, threshold limiting, or trend comparison based on historical sampling to effectively eliminate abnormal data points caused by transmission noise, hardware failures, or sudden interference, ensuring the accuracy and stability of the green light component data used. During the verification process, the principle of spatial consistency may also be incorporated to judge the continuity of data within the set and the reasonable differences between adjacent pixels, ensuring that the final output green light component value reflects both the true local brightness changes and avoids misleading calculations of the driving ratio caused by outliers. The processed green light component value provides a reliable and high-quality input foundation for the subsequent dual-wavelength green light mixing algorithm, improving the uniformity and color stability of the overall display effect.

[0040] Preferably, determining the driving ratio based on the superimposed green light component and a preset green light mixing mapping relationship includes: A green light mixing mapping table is established based on the color data corresponding to different green light mixing ratios measured in advance. Specifically, a systematic measurement of the combined luminescence of the first and second green LEDs under different drive ratios was conducted. Professional spectral analysis instruments were used to collect the spectral distribution and corresponding chromaticity coordinates, covering the full range of data from single green light drive to multiple ratio mixtures, forming a detailed and high-precision color data sample. These measurement results were organized and digitized, and a green light mixing mapping table was established based on the mapping relationship between drive ratio and color performance. This table provides a reliable physical and visual parameter mapping basis for the drive algorithm. The mapping table uses discrete point interpolation or curve fitting to predict the chromaticity output under any mixing ratio drive condition, thereby quickly locating the corresponding ideal drive parameters in subsequent drive ratio calculations. This ensures that the display system can accurately adjust the green light emission characteristics according to the input signal, optimizing color performance and improving the stability and consistency of the display effect.

[0041] Based on the superimposed green light components, determine the corresponding mapping interval in the green light mixing mapping table; Specifically, after obtaining the superimposed green light component, the data information closest to this superimposed value is searched in a pre-established green light mixing mapping table. This mapping table, indexed by the driving ratio and corresponding chromaticity data, forms a series of discrete yet ordered sampling points. Efficient algorithms such as traversal or binary search are used to locate the boundary of the interval containing the superimposed green light component, i.e., to determine that it lies between two adjacent driving ratio points, thus obtaining the corresponding mapping interval. This process ensures the continuity and accuracy of the driving ratio calculation basis, providing a clear numerical range for subsequent interpolation calculations. This helps to achieve precise adjustment of the dual-wavelength green light emission ratio, thereby improving the color reproduction and stability of the display.

[0042] The driving ratio is calculated based on the color data within the mapping interval.

[0043] Specifically, based on the color data within the mapping interval, the system uses an interpolation algorithm to weight the driving ratio at the endpoints of the interval with the corresponding chromaticity values. Linear interpolation, piecewise polynomial fitting, or other numerical approximation methods are typically used to obtain the driving ratio that best matches the input superimposed green light component. This calculation not only considers the continuous variation in green light brightness but also incorporates preset grayscale levels and color correction parameters to ensure that the driving output achieves the optimal balance between visual perception and physical emission. Through this precise driving ratio calculation, dual-wavelength green LEDs can achieve dynamic and smooth light intensity tuning, effectively expanding the green color gamut, improving the color saturation and consistency of the displayed image, and enhancing the overall visual quality and natural feel of the picture.

[0044] Preferably, calculating the driving ratio based on the color data within the mapping interval includes: Based on the color data, obtain the first driving reference value corresponding to the first green LED and the second driving reference value corresponding to the second green LED; Specifically, the color data includes the luminous intensity and corresponding driving parameters of two types of green LEDs under different green light mixing ratios. The system analyzes this data to extract the driving reference values ​​for the first and second green LEDs within the current mapping range. These reference values ​​are typically expressed as current magnitude or PWM duty cycle, representing the standard driving amount required to achieve the target chromaticity under specific mixing ratios. During the acquisition process, indexing and data filtering of the mapping table ensure that the extracted driving reference values ​​accurately reflect the physical driving characteristics of the two types of green LEDs, providing fundamental parameters for subsequent interpolation calculations. This guarantees a high degree of matching between the driving output and the expected color target, promoting the stability and color consistency of the display effect.

[0045] Based on the first driving reference value and the second driving reference value, and combined with the target green light component, the initial driving ratio is calculated by interpolation. Specifically, based on the first and second driving reference values, and combined with the target green light component, the system calculates the initial driving ratio using an interpolation algorithm. This process, within the range corresponding to the driving reference values, performs a weighted average or polynomial fitting on the two values ​​based on the specific values ​​of the target green light component, ensuring that the driving ratio reflects the precise green light intensity required by the current pixel. The interpolation calculation not only guarantees the continuity and smoothness of the driving output but also takes into account the physical characteristics of the driving reference values ​​and the matching degree of visual color, enabling a seamless transition in the luminous intensity of the first and second green LEDs in practical applications, thereby improving the accuracy of color reproduction and the naturalness of the display effect.

[0046] The initial drive ratio is adjusted according to the preset grayscale level to obtain the drive ratio.

[0047] Specifically, the preset grayscale levels define the resolution and brightness levels of the drive signal. The system refines the initial drive ratio based on these levels to ensure smooth brightness changes and subtle grayscale transitions within the physical drive range. During the adjustment process, techniques such as quantization correction, non-linear mapping, or gamma correction may be employed to map the initial ratio to a drive value that matches the grayscale levels, avoiding brightness jumps or color distortion caused by directly using continuous values. This step effectively improves the stability and display consistency of the drive signal, ensuring that the green light output meets the requirements of visual perception while guaranteeing the reliability of the hardware drive, thereby enhancing the overall color performance and visual comfort of the wide color gamut display module.

[0048] Preferably, adjusting the initial drive ratio according to a preset grayscale level to obtain the drive ratio includes: Based on the preset grayscale levels, obtain the corresponding grayscale adjustment parameters; Specifically, the preset grayscale levels define the available brightness levels in the display system, with each grayscale level corresponding to specific visual perception brightness and driving requirements. Based on the current target grayscale level, the system retrieves the corresponding adjustment coefficient or correction factor from a pre-stored grayscale adjustment parameter table. These parameters are precisely calibrated to compensate for the non-linear response of the driving circuit, changes in LED luminous characteristics, and differences in human eye sensitivity to different brightness ranges. Obtaining these adjustment parameters provides a quantitative basis for subsequent weighted adjustments to the driving ratio, ensuring a smooth transition and color accuracy of green light output at different grayscale levels, and improving the sense of depth and visual comfort of the display effect.

[0049] The initial drive ratio is weighted and adjusted according to the grayscale adjustment parameters to obtain the adjusted drive ratio. Specifically, based on the acquired grayscale adjustment parameters, the system performs weighted processing on the initial drive ratio. The adjustment parameters are used as weighting factors and multiplied by the initial drive ratio to correct its value. This adjustment process fully considers the brightness nonlinearity and visual response characteristics corresponding to each grayscale level. This weighted adjustment not only corrects the amplitude deviation of the drive signal but also smooths the transition between grayscale levels, avoiding brightness jumps or color distortion caused by direct linear mapping. The final adjusted drive ratio better matches the preset grayscale resolution requirements and the drive characteristics of the display hardware, helping to achieve precise control of green light output and improve the detail and visual uniformity of the displayed image.

[0050] Determine whether the adjusted drive ratio meets the requirements for drive stability and color consistency, and obtain the determination result; Specifically, the adjusted drive ratio is input into the drive model. By calculating the corresponding current and voltage parameters, its electrical stability in the actual hardware is evaluated, including indicators such as current fluctuation amplitude and response speed. Simultaneously, the luminous chromaticity value predicted by the drive ratio is compared with the target color coordinates to calculate color deviation, thereby determining the consistency of color output. Combining the electrical stability evaluation and color deviation results, the system compares the results with preset drive stability thresholds and color consistency thresholds to determine whether the adjusted drive ratio meets operational requirements. This judgment process ensures that the final drive signal maintains stable device operation while achieving the expected color accuracy, providing a basis for necessary subsequent drive corrections and guaranteeing the high quality and reliability of the display module.

[0051] Based on the judgment result, the adjusted drive ratio is further corrected to obtain the drive ratio.

[0052] Specifically, based on the stability and color consistency evaluation results of the adjusted drive ratio, the system applies a dynamic correction strategy for drive ratios that do not meet the preset standards. This may include limiting the amplitude of drive signal variations, introducing feedback control mechanisms, or adjusting weighting parameters to reduce current fluctuations and minimize color deviations. The correction process combines real-time monitoring data and historical drive performance, using iterative calculations or model prediction methods to optimize the drive ratio, bringing it closer to a stable state that meets the color target. The final corrected drive ratio not only meets the stability requirements of the hardware drive but also ensures color consistency in green light output, thereby improving the visual quality of the display module and the reliability of the system.

[0053] Preferably, the determination of whether the adjusted drive ratio meets the requirements for drive stability and color consistency, and the determination result includes: Based on the adjusted drive ratio, the output current and voltage parameters of the LED beads are calculated to obtain the electrical drive parameters; Specifically, the adjusted drive ratio is used as the control signal input. Based on the electrical characteristic model of the LED chip, this ratio is converted into corresponding output current and voltage parameters, typically involving specific settings for the current modulation or pulse width modulation (PWM) signal of the drive circuit. By accurately calculating the current intensity and voltage amplitude, the actual luminous intensity and power consumption of the LED are reflected, and the electrical drive parameters can accurately describe the electrical behavior under the current drive state. This calculation process combines the electrical characteristic curves of the LED device, the effects of temperature, and the driver performance to ensure that the output parameters are within the hardware's allowable range, supporting subsequent stability analysis and color correction, laying the foundation for achieving efficient and stable display effects.

[0054] Based on the electrical drive parameters, the stability index of the drive signal is evaluated to obtain the drive stability evaluation result, wherein the stability index includes current fluctuation amplitude and response time; Specifically, based on electrical drive parameters, the system monitors and analyzes the current variation trend of the LED beads, focusing on evaluating the current fluctuation amplitude to determine the stability of the drive signal. Excessive fluctuation amplitude may lead to brightness flickering or uneven color. Simultaneously, the drive signal response time is measured, i.e., the time required for the output current to reach a stable state from the input command, reflecting the dynamic response capability of the drive system. Through comprehensive analysis of these stability indicators, a drive stability evaluation result is obtained, ensuring that the LED beads maintain a constant current supply and rapid response capability during operation, avoiding display distortion or equipment damage caused by electrical instability, and improving the reliability and visual performance quality of the display module.

[0055] The expected color coordinate values ​​are calculated based on the adjusted drive ratio; Specifically, the adjusted drive ratio is used as an input parameter and mapped to the corresponding spectral emission characteristics through a color conversion model. The system combines the spectral response curves of the first and second green LED chips to calculate the overall spectral distribution of the mixed dual-wavelength green light. Subsequently, according to international colorimetric standards (such as the CIE 1931 color space), the mixed spectrum is converted into corresponding color coordinate values, accurately reflecting the theoretical color output of the LED display module under this drive ratio. These color coordinates provide a basis for evaluating color reproduction and consistency, and are an important basis for subsequent comparative analysis with the target color coordinates, ensuring that the actual drive scheme can achieve the expected visual effect.

[0056] The color coordinate values ​​are compared with the target color coordinates to obtain the color deviation value; Specifically, the calculated color coordinate values ​​are compared with the target color coordinates in the input image signal. The color deviation is quantified by calculating the distance or difference between the two in the color space, such as the ΔE value. This deviation value reflects the degree of difference between the actual emitted color and the expected target color; the smaller the value, the more accurate the color reproduction. By accurately measuring the color deviation, the system can identify color distortion or color cast, providing data support for optimizing and adjusting the driving parameters. This ensures that the color effect output by the display module meets design requirements, achieving high-quality wide color gamut display.

[0057] Based on the driving stability evaluation results and color deviation values, it is determined whether they meet the preset driving stability threshold and color consistency threshold, and the determination result is obtained.

[0058] Specifically, by combining the current fluctuation amplitude and response time indicators from the drive stability evaluation results, as well as the numerical range of color deviation values, the system compares these key parameters with pre-set drive stability thresholds and color consistency thresholds. Only when the current fluctuation and response time are within allowable ranges, and the color deviation meets visual quality standards, is the judgment result deemed compliant. This comprehensive judgment mechanism ensures that the drive signal possesses both sufficient electrical stability and accurate color reproduction, guaranteeing that the display module exhibits stable, high-quality image output during actual operation and avoiding performance degradation or impaired visual experience due to abnormal parameters.

[0059] It should be noted that, in this embodiment of the invention, taking a green LED as the third LED bead as an example, by setting two LED beads with different emission wavelengths (a first green LED bead and a second green LED bead) and connecting them to independent driving channels, the driving ratio is calculated based on the target green light component in the input image signal to achieve mixed output, thereby expanding the color gamut boundary and improving color reproduction capability. However, this approach is not limited to dual-wavelength mixing only in the green light channel. If two LED beads with different emission wavelengths are configured in the red or blue light channel, the target red light component or target blue light component can also be obtained accordingly. Using a similar mixing mapping relationship and driving ratio calculation mechanism, the corresponding mixed red light or mixed blue light is output, thereby expanding the spectral position and achievable color coordinate range of the R or B channel, achieving a similar wide color gamut display effect. Example 2 Please see Figure 6 Embodiment 2 of the present invention also provides a wide color gamut LED display module control device, the device comprising: The target light component acquisition module is used to acquire the target green light component, target red light component and target blue light component of each pixel according to the input image signal of the LED display module; The drive ratio calculation module is used to determine the drive ratio of the first green LED and the second green LED based on the target green light component and a preset dual-wavelength mixing algorithm. The drive signal output module is used to output drive signals to the independent drive channels of the first green LED and the second green LED respectively according to the drive ratio, so as to realize the green light mixing corresponding to the drive ratio. The drive control module is used to drive and control the red LED beads and the blue LED beads to work according to the target red light component and the target blue light component, so as to realize wide color gamut image display.

[0060] Specifically, the wide color gamut LED display module control device provided in this embodiment of the invention includes: a target light component acquisition module, used to acquire the target green light component, target red light component, and target blue light component of each pixel according to the input image signal of the LED display module; a drive ratio calculation module, used to determine the drive ratio of the first green LED and the second green LED according to the target green light component and a preset dual-wavelength mixing algorithm; a drive signal output module, used to output drive signals to the independent drive channels of the first green LED and the second green LED according to the drive ratio, thereby realizing green light mixing corresponding to the drive ratio; and a drive control module, used to drive and control the red LED and the blue LED according to the target red light component and the target blue light component, thereby realizing wide color gamut image display. This device achieves independent drive control of the first green LED and the second green LED by using dual-wavelength green LEDs with different emission wavelengths in the LED display module and arranging them in an alternating and diagonally distributed manner within the same display area. By utilizing the target green light component of each pixel in the input image signal and combining it with a preset dual-wavelength mixing algorithm, the driving ratio of the two green LED chips is accurately calculated and determined. Corresponding driving signals are output through independent driving channels, achieving efficient and precise green light mixing output, thereby expanding the green light spectral range and improving color performance. Furthermore, by combining the driving control of red and blue LED chips, the overall color gamut coverage and color reproduction capability of the display module are improved. In determining the driving ratio, this scheme collects and superimposes the green light component values ​​of adjacent pixels, using a preset green light mixing mapping table to accurately map the driving ratio, ensuring color uniformity and accuracy. To ensure the stability and consistency of the display effect, the scheme introduces a driving ratio adjustment mechanism based on preset grayscale levels. By acquiring grayscale adjustment parameters and weighting the driving ratio, and combining the calculation of electrical driving parameters and color coordinate comparison, the stability and color deviation of the driving signal are dynamically evaluated and corrected, ensuring that the final displayed image meets high color gamut standards while possessing excellent driving stability and color consistency. This solution effectively addresses the issues of high system complexity and cost associated with increasing color gamut by adding extra color LEDs in existing technologies. It achieves a significant improvement in BT.2020 color gamut coverage and overlap rate without increasing hardware complexity, thus meeting the high-quality color requirements of ultra-high-definition displays.

[0061] Example 3 In addition, combined Figure 1 The wide color gamut LED display module control method described in Embodiment 1 of the present invention can be implemented by an electronic device. Figure 7 A schematic diagram of the hardware structure of the electronic device provided in Embodiment 3 of the present invention is shown.

[0062] Electronic devices may include processors and memory storing computer program instructions.

[0063] Specifically, the processor may include a central processing unit (CPU), an application-specific integrated circuit (ASIC), or one or more integrated circuits that can be configured to implement embodiments of the present invention.

[0064] The memory may include a large-capacity storage device for data or instructions. For example, and not limitingly, the memory may include a hard disk drive (HDD), a floppy disk drive, flash memory, an optical disk drive, a magneto-optical disk drive, magnetic tape, or a Universal Serial Bus (USB) drive, or a combination of two or more of these. Where appropriate, the memory may include removable or non-removable (or fixed) media. Where appropriate, the memory may be internal or external to a data processing device. In a particular embodiment, the memory is a non-volatile solid-state memory. In a particular embodiment, the memory includes a read-only memory (ROM). Where appropriate, the ROM may be a mask-programmed ROM, a programmable ROM (PROM), an erasable PROM (EPROM), an electrically erasable PROM (EEPROM), an electrically rewritable ROM (EAROM), or flash memory, or a combination of two or more of these.

[0065] The processor reads and executes computer program instructions stored in the memory to implement any of the wide color gamut LED display module control methods in the above embodiments.

[0066] In one example, the electronic device may also include a communication interface and a bus. For example, Figure 7 As shown, the processor, memory, and communication interface are connected via a bus and communicate with each other.

[0067] The communication interface is mainly used to enable communication between various modules, devices, units and / or equipment in the embodiments of the present invention.

[0068] A bus, including hardware, software, or both, couples components of the device together. For example, and not limitingly, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), HyperTransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an Infinite Bandwidth Interconnect, a Low Pin Count (LPC) bus, a memory bus, a Microchannel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a Video Electronics Standards Association Local (VLB) bus, or other suitable buses, or combinations of two or more of these. Where appropriate, a bus may include one or more buses. While specific buses are described and illustrated in embodiments of the invention, the invention contemplates any suitable bus or interconnect.

[0069] Example 4 In addition, in conjunction with the wide color gamut LED display module control method in Embodiment 1 above, Embodiment 4 of the present invention can also provide a computer-readable storage medium for implementation. This computer-readable storage medium stores computer program instructions; when these computer program instructions are executed by a processor, they implement any one of the wide color gamut LED display module control methods in the above embodiments.

[0070] In summary, the embodiments of the present invention provide a method, apparatus, device, and medium for controlling a wide color gamut LED display module.

[0071] It should be clarified that the present invention is not limited to the specific configurations and processes described above and shown in the figures. For the sake of brevity, detailed descriptions of known methods are omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown. Those skilled in the art can make various changes, modifications, and additions, or change the order of steps, after understanding the spirit of the present invention.

[0072] The functional blocks shown in the above-described structural diagram can be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, they can be, for example, electronic circuits, application-specific integrated circuits (ASICs), appropriate firmware, plug-ins, function cards, etc. When implemented in software, the elements of this invention are programs or code segments used to perform the required tasks. The programs or code segments can be stored on a machine-readable medium or transmitted over a transmission medium or communication link via data signals carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, radio frequency (RF) links, etc. Code segments can be downloaded via computer networks such as the Internet, intranets, etc.

[0073] The user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, data stored, data displayed, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties. Furthermore, the collection, use and processing of the relevant data shall comply with the relevant laws, regulations and standards of the relevant locality, and corresponding operation entry points shall be provided for the user to choose to authorize or refuse.

[0074] It should also be noted that the exemplary embodiments mentioned in this invention describe methods or systems based on a series of steps or apparatus. However, this invention is not limited to the order of the steps described above; that is, the steps can be performed in the order mentioned in the embodiments, or in a different order, or several steps can be performed simultaneously.

[0075] The above description is merely a specific embodiment of the present invention. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, modules, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the protection scope of the present invention.

Claims

1. A method for controlling a wide color gamut LED display module, characterized in that, The LED display module includes an LED display substrate and a plurality of LED beads disposed on the LED display substrate; the LED beads include a first LED bead having a first emission color, a second LED bead having a second emission color, and a third LED bead having a third emission color; the first emission color, the second emission color, and the third emission color are all different; the third LED bead includes a fourth LED bead and a fifth LED bead with different emission wavelengths; the fourth LED bead and the fifth LED bead are arranged alternately on the LED display substrate and are diagonally distributed within a preset pixel area; the fourth LED bead and the fifth LED bead are respectively connected to independent drive control channels to achieve dual-wavelength green light mixed output within the same display area; if the first LED bead is a red LED bead and the second LED bead is a blue LED bead, the third LED bead is a green LED bead, the fourth LED bead is a first green LED bead, and the fifth LED bead is a second green LED bead, then the control method includes: Based on the input image signal of the LED display module, the target green light component, target red light component and target blue light component of each pixel are obtained; Based on the target green light component and the preset dual-wavelength mixing algorithm, the driving ratio of the first green light LED and the second green light LED is determined; According to the driving ratio, driving signals are output to the independent driving channels of the first green LED and the second green LED respectively to achieve green light mixing corresponding to the driving ratio; Based on the target red light component and the target blue light component, the red light LED and the blue light LED are driven and controlled to work, thereby realizing wide color gamut image display.

2. The wide color gamut LED display module control method according to claim 1, characterized in that, The step of determining the driving ratio of the first green LED and the second green LED based on the target green light component and a preset dual-wavelength mixing algorithm includes: Based on the target green light component, obtain the green light component value corresponding to the adjacent pixel; The superimposed green light component is calculated based on the green light component value; The driving ratio is determined based on the superimposed green light component and the preset green light mixing mapping relationship.

3. The wide color gamut LED display module control method according to claim 2, characterized in that, The step of obtaining the green light component value corresponding to the adjacent pixel based on the target green light component includes: Get the current pixel position and the target green light component of the current pixel; Based on the current pixel position, determine the adjacent pixel positions corresponding to the current pixel, wherein the adjacent pixel positions include a first pixel position that is adjacent in the horizontal direction and a second pixel position that is adjacent in the vertical direction; Based on the positions of the adjacent pixels, the target green light component of the adjacent pixels is obtained; Match the target green light component of the current pixel with the target green light components of its neighboring pixels to construct a set of green light components containing the current pixel and its neighboring pixels; The green light component set is subjected to outlier detection and data verification to obtain the green light component values.

4. The wide color gamut LED display module control method according to claim 2, characterized in that, The step of determining the driving ratio based on the superimposed green light component and the preset green light mixing mapping relationship includes: A green light mixing mapping table is established based on the color data corresponding to different green light mixing ratios measured in advance. Based on the superimposed green light components, determine the corresponding mapping interval in the green light mixing mapping table; The driving ratio is calculated based on the color data within the mapping interval.

5. The wide color gamut LED display module control method according to claim 3, characterized in that, The calculation of the driving ratio based on the color data within the mapping interval includes: Based on the color data, obtain the first driving reference value corresponding to the first green LED and the second driving reference value corresponding to the second green LED; Based on the first driving reference value and the second driving reference value, and combined with the target green light component, the initial driving ratio is calculated by interpolation. The initial drive ratio is adjusted according to the preset grayscale level to obtain the drive ratio.

6. The wide color gamut LED display module control method according to claim 5, characterized in that, The step of adjusting the initial drive ratio according to a preset grayscale level to obtain the drive ratio includes: Based on the preset grayscale levels, obtain the corresponding grayscale adjustment parameters; The initial drive ratio is weighted and adjusted according to the grayscale adjustment parameters to obtain the adjusted drive ratio. Determine whether the adjusted drive ratio meets the requirements for drive stability and color consistency, and obtain the determination result; Based on the judgment result, the adjusted drive ratio is further corrected to obtain the drive ratio.

7. The wide color gamut LED display module control method according to claim 6, characterized in that, The determination of whether the adjusted drive ratio meets the requirements of drive stability and color consistency includes the following results: Based on the adjusted drive ratio, the output current and voltage parameters of the LED beads are calculated to obtain the electrical drive parameters; Based on the electrical drive parameters, the stability index of the drive signal is evaluated to obtain the drive stability evaluation result, wherein the stability index includes current fluctuation amplitude and response time; The expected color coordinate values ​​are calculated based on the adjusted drive ratio; The color coordinate values ​​are compared with the target color coordinates to obtain the color deviation value; Based on the driving stability evaluation results and color deviation values, it is determined whether they meet the preset driving stability threshold and color consistency threshold, and the determination result is obtained.

8. A wide color gamut LED display module control device, characterized in that, The device includes: The target light component acquisition module is used to acquire the target green light component, target red light component and target blue light component of each pixel according to the input image signal of the LED display module; The drive ratio calculation module is used to determine the drive ratio of the first green LED and the second green LED based on the target green light component and a preset dual-wavelength mixing algorithm. The drive signal output module is used to output drive signals to the independent drive channels of the first green LED and the second green LED respectively according to the drive ratio, so as to realize the green light mixing corresponding to the drive ratio. The drive control module is used to drive and control the red LED beads and the blue LED beads to work according to the target red light component and the target blue light component, so as to realize wide color gamut image display.

9. An electronic device, characterized in that, include: At least one processor, at least one memory, and computer program instructions stored in the memory, which, when executed by the processor, implement the method as described in any one of claims 1-7.

10. A storage medium storing computer program instructions thereon, characterized in that, The method as described in any one of claims 1-7 is implemented when the computer program instructions are executed by the processor.

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