LED tiled display method based on binocular parallax 3D

Abstract

The invention belongs to the technical field of 3D display, and relates to an LED tiled display method based on binocular parallax 3D. Through an innovative high-refresh-rate shutter type 3D display technology, the frame frequency of an input image signal is improved to 120 Hz, the phenomena of image flicker and ghosting are effectively reduced, smoother and more natural 3D visual experience is brought to a user, an accurate frame synchronization algorithm and a 3D synchronization transmitter are utilized, interval release and synchronous switching of left and right eye pictures are ensured, and the user experience is improved. And in cooperation with the active 3D glasses controlled by 2.4 GHz high-frequency signals, high-precision visual output with the same frequency and synchronization with the LED display screen is realized, and the 3D display quality and the user experience are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of 3D display, and relates to an LED splicing display method based on binocular parallax 3D. Background Art

[0002] In the field of 3D display technology, shutter 3D display technology has become the mainstream choice for applications such as home entertainment, cinemas and games. The principle of this technology is to achieve the alternating display of left and right eye images by increasing the image refresh rate, such as increasing the display frame rate to 120Hz. Specifically, the LED display screen alternately displays the left eye image and the right eye image, and the active 3D glasses worn by the viewer are designed with a control chip inside. The chip synchronizes with the frame rate transmitter through a 2.4GHz high-frequency signal to control the left and right photoelectric lenses to alternately become transparent and opaque at the same frame switching frequency to match the image switching on the display screen. When the left eye image is displayed, the left lens is transparent and the right lens is opaque, ensuring that only the left eye can see the image; vice versa. This rapid alternating switching, when reaching more than 50 times per second, the human brain will fuse the images received by the two eyes into a stereoscopic image, thus producing a 3D effect.

[0003] However, although shutter 3D technology has made certain achievements in providing an immersive visual experience, it still faces some challenges. For example, when switching scenes quickly, flickering and ghosting are prone to occur due to insufficient refresh rate and low synchronization accuracy, which seriously affects the visual experience of 3D viewing. In addition, the existing technology also has deficiencies in multi-channel input processing and picture stitching accuracy, making it difficult to achieve high-quality multi-channel display. Regional 3D display configuration technology is still in its infancy, lacking mature solutions and flexible control systems. There is still a gap between domestic and foreign countries in high refresh rate display technology and synchronous control technology, especially in high refresh rate display technology and stable synchronous control signals. Therefore, it is necessary to develop a new type of 3D display technology to overcome the limitations of the existing technology and provide higher quality 3D display effects. Summary of the invention

[0004] Purpose of the Invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention aims to provide an LED splicing display method based on binocular parallax 3D, to achieve a 3D display effect with high refresh rate and high precision synchronization, while providing multi-channel input processing and flexible regional 3D display configuration to meet diverse display needs and enhance user experience.

[0006] Technical Solution

[0007] In order to achieve the above purpose, the following technical solutions are adopted:

[0008] A LED splicing display method based on binocular parallax 3D includes the following steps:

[0009] (1) Receive the original frame frequency f in = 60Hz input image signal;

[0010] (2) Use the frequency doubling algorithm to increase the frame frequency of the input image signal to f out =2×f in =120Hz, generating signals for alternating display between the left and right eyes, and introducing an adaptive refresh rate adjustment mechanism, which can monitor scene dynamics in real time and adjust the refresh rate to reduce visual discomfort during rapid scene switching;

[0011] (3) Using the LED video splicing device and the image processing unit, the left and right eye switching signals are synchronously transmitted to the 3D synchronization transmitter according to the frame synchronization algorithm. The algorithm ensures that the synchronization error difference ∈ sync ≤1 / f out And improve the accuracy of picture stitching through the image processing unit;

[0012] The brightness adjustment is based on the following formula: The brightness L of each area is expressed as the product of the basic brightness Lo and the adjustment coefficient k: L = k × L0;

[0013] The color correction is based on the following formula: Color calibration is achieved through the correction matrix M, and the color C of each area is calculated by the following formula: C = M × C original , where C original is the original color vector, M is a 3×3 color correction matrix, and independent calibration of the red, green, and blue channels is achieved by adjusting the elements in the matrix;

[0014] (4) The 3D synchronization transmitter converts the signal into a signal for controlling the synchronous switching of the active 3D glasses optoelectronic lenses according to the synchronization control algorithm. The algorithm includes a synchronization delay SD and a synchronization window SW, satisfying SW ≥ SD + 1 / f out ;

[0015] (5) A 2.4 GHz high frequency signal is used to realize high-precision synchronization control of active 3D glasses, and the synchronization accuracy error Δφ satisfies Δφ<2λ, where λ is the wavelength of the 2.4 GHz signal.

[0016] Furthermore, the frame synchronization algorithm includes:

[0017] (a) Determine the input frame frequency f in and the target frame frequency f out ;

[0018] (b) Calculate the frame interval ratio FR = f out / f in ;

[0019] (c) Insert or discard frames for the input signal according to the frame interval ratio to match the target frame frequency and satisfy

[0020] FR×FC in = FC out , where FC in is the number of frames of the input signal, and FC out is the number of frames of the output signal.

[0021] Further, the synchronization control algorithm includes:

[0022] (i) Receive the left-eye / right-eye switching signal from the video splicing device and define the initial synchronization point of the signal as t0;

[0023] (ii) Adjust the timing of the signal according to the preset synchronization control parameters;

[0024] (iii) Use the clock management unit to ensure that the signal is sent to the 3D glasses within a predetermined synchronization window, satisfying t0 + SD ≤ t < t0 + SD + SW; where t is the current synchronization point;

[0025] (iv) Monitor and adjust the synchronization state of the signal to compensate for possible timing deviations, satisfying |Δt| ≤ ∈ sync , where Δt is the synchronization timing deviation;

[0026] Further, the accuracy of the picture splicing includes color correction, brightness adjustment, and edge fusion to adapt to different display environments and requirements.

[0027] Further, in step 3), the value of k is adjusted according to the ambient light condition or user requirements, and k ∈ [0, 2] to adapt to different display requirements.

[0028] Further, the LED video splicing device can process input signals within 18 channels and within 18 channels, and output a monocular picture with a resolution of 4K and a frame frequency of f in for each channel, and the image processing time of each channel ≤ 1 / f in - ∈ proc， where ∈ proc is the margin of the processing time. In the multi-channel input processing of the LED video splicing device, a synchronization calibration algorithm is used to ensure the timing consistency between the input signals of each channel, and a dynamic timing adjustment mechanism is introduced to perform real-time correction on the processing delays of different channels to ensure the time synchronization accuracy of the final spliced picture.

[0029] Further, the video splicing devices are cascaded through serial ports to generate an output with a resolution of 4K and a frame frequency of f outThe stereoscopic picture, and the time synchronization error in the splicing process is less than or equal to ∈ sync The video splicing device has an automatic color and brightness calibration function. It uses sensors to detect the color and brightness differences of each channel output in real time. The system will automatically adjust the output of each channel according to the preset calibration curve to achieve color and brightness consistency, ensuring that there are no obvious splicing marks on the spliced ​​picture. Through transition processing technology and edge fusion algorithm, the transition lines between different splicing units are eliminated to improve the coherence and consistency of the overall display effect.

[0030] Furthermore, the 3D synchronization transmitter includes a synchronization control unit for ensuring that the left and right eye images are switched synchronously with the photoelectric lenses of the active 3D glasses, and the synchronization accuracy satisfies Δt<1 / 2f out The active 3D glasses include a photoelectric sensor and a liquid crystal shutter, wherein the photoelectric sensor responds to a 2.4 GHz high frequency signal to control the opening and closing of the liquid crystal shutter.

[0031] Furthermore, the LED video splicing device includes at least one video splicer for processing the signal of the input channel and generating a stereoscopic picture;

[0032] Furthermore, the number of 3D synchronization transmitters should be ≥ 1, which are used to convert the signal output by the LED video splicing device into a signal for controlling 3D glasses.

[0033] Furthermore, the method is implemented by the following system: it also includes a visual computer for outputting a 4K×60Hz or 4K×120Hz 3D video source; it includes a central control management system, through which a user can freely select a specific area of ​​the screen for 3D display, and can dynamically adjust the area size and position to meet the diverse display needs in different scenarios, including adding independent color and brightness settings to the regional 3D display configuration, and the user can customize the display parameters of different areas according to the specific application scenario to achieve the best visual effect.

[0034] Furthermore, the central control management system can quickly adjust the regional configuration of 3D display according to application requirements. The central control management system supports users to freely define any area of ​​the display screen through the software interface. Users can use dragging or coordinate input to define the area that needs to be displayed in 3D. Each area can be accurate to the pixel level to ensure that different display requirements are met in complex application scenarios. The central control management system supports the simultaneous definition of multiple independent 3D display areas. Each area can be configured with display parameters separately, including brightness, contrast, color correction and parallax parameters. This independent configuration function allows multiple different 3D contents to be displayed on the same screen without interfering with each other.

[0035] Furthermore, when multiple areas are displayed in 3D at the same time, the central control management system provides a smooth transition function for the area edges to avoid abrupt visual effects due to parallax or depth differences between areas. The smooth transition adjusts the 3D parameters of the area edges to ensure that the 3D content in different areas is visually coherent and natural. A transition zone is defined between two adjacent 3D display areas. By gradually adjusting the parallax and depth parameters, the visual faults between different areas are eliminated, making the 3D effect of the entire screen more unified.

[0036] The beneficial effects of this application are:

[0037] (1) The present invention uses innovative high refresh rate shutter 3D display technology to increase the frame frequency of the input image signal to 120Hz, effectively reducing image flicker and ghosting, and providing users with a smoother and more natural 3D visual experience. It uses a precise frame synchronization algorithm and a 3D synchronization transmitter to ensure the interval release and synchronous switching of the left and right eye images. In conjunction with active 3D glasses controlled by a 2.4GHz high-frequency signal, it achieves high-precision visual output that is synchronized with the LED display screen, greatly improving the quality of 3D display and user experience.

[0038] (2) The present invention realizes stereoscopic image processing with a resolution of up to 4K and a frame rate of 120Hz through high-precision 3D image stitching and multi-channel synchronous display technology, LED video stitching equipment and serial port cascading technology. This multi-channel input processing capability breaks through the bottleneck of the existing technology, realizes high-precision image stitching and synchronization, ensures the real-time and continuity of the image, and provides users with stable and high-quality 3D visual effects. At the same time, the system's central control management function allows users to quickly adjust the 3D display area and mode according to different application scenarios and needs, providing a high degree of application flexibility and operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical scheme and advantages of the implementation of the present invention clearer, the technical scheme in the embodiment of the present invention will be described in more detail in combination with the embodiment of the present invention. In the example, the same or similar reference numerals throughout represent the same or similar originals or elements with the same or similar functions. The described embodiments are part of the embodiments of the present invention, not all of them. The embodiments described below by reference are exemplary and intended to be used to explain the present invention, and should not be construed as limitations on the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present invention. The following is a detailed description in combination with the embodiments of the present invention.

[0041] A LED splicing display method based on binocular parallax 3D

[0042] The method comprises the following steps:

[0043] (1) Receive the original frame frequency f in = 60Hz input image signal;

[0044] (2) Use the frequency doubling algorithm to increase the frame frequency of the input image signal to f out =2×f in =120Hz, generating signals for alternating display between the left and right eyes, and introducing an adaptive refresh rate adjustment mechanism, which can monitor scene dynamics in real time and adjust the refresh rate to reduce visual discomfort during rapid scene switching;

[0045] (3) Using LED video splicing equipment and advanced image processing units, the left and right eye switching signals are synchronously transmitted to the 3D synchronization transmitter according to the frame synchronization algorithm. The algorithm ensures that the synchronization error difference ∈ sync ≤1 / f out And improve the accuracy of picture splicing through advanced image processing unit, including color correction, brightness adjustment and edge fusion, to adapt to different display environments and needs;

[0046] The brightness adjustment is based on the following formula: The brightness L of each area can be expressed as the product of the basic brightness Lo and the adjustment coefficient k: L = k × L0, where k can be adjusted according to the ambient lighting conditions or user needs, k∈[0,2], to adapt to different display needs;

[0047] The color correction is based on the following formula: Color calibration can be achieved through the correction matrix M, and the color C of each area can be calculated by the following formula: C = M × C original , where C original is the original color vector, M is a 3×3 color correction matrix. By adjusting the elements in the matrix, independent calibration of the red, green, and blue channels can be achieved;

[0048] (4) The 3D synchronization transmitter converts the signal into a signal for controlling the synchronous switching of the active 3D glasses optoelectronic lenses according to the synchronization control algorithm. The algorithm includes a synchronization delay SD and a synchronization window SW, satisfying SW ≥ SD + 1 / f out ;

[0049] (5) A 2.4 GHz high frequency signal is used to realize high-precision synchronization control of active 3D glasses, and the synchronization accuracy error Δφ satisfies Δφ<2λ, where λ is the wavelength of the 2.4 GHz signal.

[0050] The frame synchronization algorithm includes:

[0051] (a) Determine the input frame frequency f in and the target frame frequency f out ;

[0052] (b) Calculate the frame interval ratio FR = f out / f in ;

[0053] (c) According to the frame interval ratio, frame insertion or frame drop is performed on the input signal to match the target frame frequency to meet

[0054] FR×FC in =FC out , where FC in is the number of input signal frames, FC out The number of output signal frames.

[0055] The synchronization control algorithm includes:

[0056] (i) receiving left-eye and right-eye switching signals from a video splicing device, and defining the initial synchronization point of the signal as t0;

[0057] (ii) adjusting the timing of the signal according to preset synchronization control parameters;

[0058] (iii) Using the clock management unit, ensure that the signal is sent to the 3D glasses within the predetermined synchronization window, satisfying t0+SD≤t <t0+SD+SW;

[0059] (iv) Monitor and adjust the synchronization state of the signal to compensate for possible timing deviations to satisfy |Δt|≤∈ sync .

[0060] The LED video splicing device can output 4K resolution and frame frequency of f in 18 channels or less input signals. in The single-eye image and the image processing time per channel is ≤1 / f in -∈ proc， where ∈ proc In order to allow for time margin in processing, the LED video splicing device uses a synchronous calibration algorithm in multi-channel input processing to ensure the timing consistency between input signals of each channel, and introduces a dynamic timing adjustment mechanism to perform real-time correction on processing delays of different channels to ensure the time synchronization accuracy of the final spliced ​​image.

[0061] The video splicing device generates an output of 4K resolution through serial port cascading, and the frame frequency is f out The stereoscopic picture, and the time synchronization error in the splicing process is less than or equal to ∈ syncThe video splicing device has an automatic color and brightness calibration function. It uses sensors to detect the color and brightness differences of each channel output in real time. The system will automatically adjust the output of each channel according to the preset calibration curve to achieve color and brightness consistency, ensuring that there are no obvious splicing marks on the spliced ​​picture. Through transition processing technology and edge fusion algorithm, the transition lines between different splicing units are eliminated to improve the coherence and consistency of the overall display effect.

[0062] The 3D synchronization transmitter includes a synchronization control unit for ensuring that the left and right eye images are switched synchronously with the photoelectric lenses of the active 3D glasses, and the synchronization accuracy satisfies Δt<1 / 2f out The active 3D glasses include a photoelectric sensor and a liquid crystal shutter, wherein the photoelectric sensor responds to a 2.4 GHz high frequency signal to control the opening and closing of the liquid crystal shutter.

[0063] Includes 18 or less input channels for receiving 4K resolution single-eye images;

[0064] comprising at least one video splicing device, for processing the signals of the input channels and generating a stereoscopic picture;

[0065] It includes at least one 3D synchronization transmitter, which is used to convert the signal output by the video splicing device into a signal for controlling 3D glasses.

[0066] The method is implemented by the following system: it also includes a visual computer for outputting a 4K×60Hz or 4K×120Hz 3D video source; it includes a central control management system, through which a user can freely select a specific area of ​​the screen for 3D display, and can dynamically adjust the size and position of the area to meet the diverse display needs in different scenarios, including adding independent color and brightness settings to the regional 3D display configuration. The user can customize the display parameters of different areas according to specific application scenarios to achieve the best visual effect. For example, when demonstrating content, the user can set a higher brightness for the main display area and a lower brightness for the surrounding auxiliary display area to highlight the key content.

[0067] The central control management system can quickly adjust the regional configuration of 3D display according to application requirements. The central control management system supports users to freely define any area of ​​the display screen through the software interface. Users can use dragging or coordinate input to define the area that needs to be displayed in 3D. Each area can be accurate to the pixel level to ensure that different display requirements are met in complex application scenarios. The central control management system supports the simultaneous definition of multiple independent 3D display areas. Each area can be configured with display parameters separately, including brightness, contrast, color correction and parallax parameters. This independent configuration function allows multiple different 3D contents to be displayed on the same screen without interfering with each other.

[0068] When multiple areas are displayed in 3D at the same time, the central control management system provides a smooth transition function for the area edges to avoid abrupt visual effects due to parallax or depth differences between areas. The smooth transition adjusts the 3D parameters of the area edges to ensure that the 3D content in different areas is visually coherent and natural. A transition zone is defined between two adjacent 3D display areas. By gradually adjusting the parallax and depth parameters, the visual faults between different areas are eliminated, making the 3D effect of the entire screen more unified.

[0069] Users can set independent brightness values ​​for each 3D display area to ensure optimal visibility of displayed content under different ambient light conditions. For example, the main display area can be set to high brightness, while the secondary area can be set to lower brightness to avoid interfering with the audience's visual focus.

[0070] Each area supports independent color calibration. The system provides a variety of preset color modes. Users can also make manual adjustments as needed to ensure that the 3D effects in different areas are bright and distinct.

[0071] The system is equipped with a real-time preview function. When users configure the 3D display area, they can view the effect in real time through the monitoring software and make necessary adjustments. This allows users to ensure that each 3D display area meets the expected visual effects before deployment.

[0072] The system supports automatic adjustment of the brightness and contrast of each 3D display area according to changes in ambient light to adapt to changes in different time periods and ambient light, and maintain the stability and consistency of the 3D display effect.

[0073] In addition, unless otherwise defined, the technical terms or scientific terms used in the description of this application shall be the common meanings understood by the general technicians in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate the relative direction or positional relationship, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, so it cannot be understood as a limitation on this application. The "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance. The similar words "one", "one" or "the" used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the existence of at least one. The similar words "including" or "comprising" used in the description of this application mean that the elements or objects appearing in front of the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects.

[0074] In addition, it should be noted that, unless otherwise clearly specified and limited, the words "installed", "connected", "connected" and similar terms used in the description of this application should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. Technical personnel in the field can understand their specific meanings in this application according to the specific circumstances.

[0075] The above description is only a specific implementation mode of the present invention and is not intended to limit the present invention. Within the spirit and principle of the present invention, any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the technical solution content of the present invention, any modification, equivalent replacement, improvement, etc. made should be included in the protection scope of the present invention.

Claims

1. A LED splicing display method based on binocular parallax 3D, characterized in that: The method includes the following steps: Step 1) Receive the original frame frequency f in = 60Hz input image signal; Step 2) Use the frequency doubling algorithm to increase the frame frequency of the input image signal to f out =2×f in =120Hz, generating signals for alternating display between the left and right eyes, and introducing an adaptive refresh rate adjustment mechanism, which can monitor scene dynamics in real time and adjust the refresh rate to reduce visual discomfort during rapid scene switching; Step 3) Using the LED video splicing device and the image processing unit, the left and right eye switching signals are synchronously transmitted to the 3D synchronization transmitter according to the frame synchronization algorithm. The algorithm ensures that the synchronization error difference ∈ sync ≤1 / f out The image processing unit is used to improve the accuracy of image stitching; the brightness adjustment is based on the following formula: the brightness L of each area is expressed as the product of the basic brightness Lo and the adjustment coefficient k: L = k × L0; Color correction is based on the following formula: Color calibration is achieved through the correction matrix M, and the color C of each area is calculated by the following formula: C = M × C original , where C original is the original color vector, M is a 3×3 color correction matrix, and independent calibration of the red, green, and blue channels is achieved by adjusting the elements in the matrix; Step 4) The 3D synchronization transmitter converts the signal into a signal for controlling the synchronous switching of the active 3D glasses optoelectronic lenses according to the synchronization control algorithm. The algorithm includes a synchronization delay SD and a synchronization window SW, satisfying SW≥SD+1 / f out ; Step 5) Use a 2.4GHz high-frequency signal to achieve high-precision synchronous control of the active 3D glasses, where the synchronous precision error Δφ satisfies Δφ < 2λ, and λ is the wavelength of the 2.4GHz signal.

2. The method according to claim 1, characterized in that The frame synchronization algorithm includes: (a) Determine the input frame frequency f in and the target frame frequency f out ; (b) Calculate the frame interval ratio FR = f out / f in ; (c) According to the frame interval ratio, perform frame insertion or frame discard on the input signal to match the target frame frequency, satisfying FR×FC in =FC out , where FC in is the number of input signal frames, FC out The number of output signal frames.

3. The method according to claim 1, characterized in that The synchronous control algorithm includes: (i) Receive the left and right eye switching signals from the video splicing device, and define the initial synchronization point of the signal as t0; (ii) Adjust the timing of the signal according to the preset synchronous control parameters; (iii) Use the clock management unit to ensure that the signal is sent to the 3D glasses within a predetermined synchronization window, satisfying t0 + SD ≤ t < t0 + SD + SW; where t is the current synchronization point; (iv) Monitor and adjust the synchronization state of the signal to compensate for possible timing deviations to satisfy |Δt|≤∈ sync , Δt is the synchronization timing deviation; the accuracy of picture splicing includes color correction, brightness adjustment and edge fusion to adapt to different display environments and needs.

4. The method according to claim 1, characterized in that In step 3), the k value is adjusted according to the ambient light conditions or user requirements, and k ∈ [0, 2] to adapt to different display requirements.

5. The method according to claim 1, characterized in that The LED video splicing device can output 4K resolution and frame frequency of f in 18 channels or less input signals. in The single-eye image and the image processing time per channel is ≤1 / f in -∈ proc， where ∈ proc In order to make up for the processing time margin, the LED video splicing device uses a synchronous calibration algorithm in multi-channel input processing to ensure the timing consistency between the input signals of each channel, and introduces a dynamic timing adjustment mechanism to perform real-time correction for the processing delay of different channels to ensure the time synchronization accuracy of the final spliced ​​picture; The video splicing device generates an output of 4K resolution through serial port cascading, and the frame frequency is f out The stereoscopic picture, and the time synchronization error in the splicing process is less than or equal to ∈ sync The video splicing device has an automatic color and brightness calibration function. It uses sensors to detect the color and brightness differences of each channel output in real time. The system will automatically adjust the output of each channel according to the preset calibration curve to achieve color and brightness consistency, ensuring that there are no obvious splicing marks on the spliced ​​picture. Through transition processing technology and edge fusion algorithm, the transition lines between different splicing units are eliminated to improve the coherence and consistency of the overall display effect.

6. The method according to claim 1, characterized in that The 3D synchronization transmitter includes a synchronization control unit for ensuring that the left and right eye images are switched synchronously with the photoelectric lenses of the active 3D glasses, and the synchronization accuracy satisfies Δt<1 / 2f out The active 3D glasses include a photoelectric sensor and a liquid crystal shutter, wherein the photoelectric sensor responds to a 2.4 GHz high frequency signal to control the opening and closing of the liquid crystal shutter.

7. The method according to claim 1, characterized in that The LED video splicing device includes at least one video splicer for processing the signals of the input channels and generating a stereoscopic picture; the number of 3D synchronous transmitters should be ≥ 1, which is used to convert the signals output by the LED video splicing device into signals for controlling the 3D glasses.

8. The method according to claim 1, characterized in that The method is implemented by the following system: It further includes a visual computer for outputting a 3D video source of 4K×60Hz or 4K×120Hz; it includes a central control management system. The user can freely select a specific area of the screen for 3D display through the central control management system, and dynamically adjust the size and position of the area to meet the diverse display requirements in different scenarios, including adding independent color and brightness settings to the area 3D display configuration. The user can customize the display parameters of different areas according to the specific application scenario to achieve the best visual effect.

9. The method according to claim 8, characterized in that The central control management system can quickly adjust the area configuration of 3D display according to application requirements. The central control management system supports the user to freely define any area of the display screen through a software interface. The user uses the method of dragging or coordinate input to delimit the area that needs to be 3D displayed. Each area is accurate to the pixel level to ensure meeting different display requirements in complex application scenarios. The central control management system supports defining multiple independent 3D display areas at the same time; each area is separately configured with display parameters, including brightness, contrast, color correction, and parallax parameters; this independent configuration function allows multiple different 3D contents to be displayed on the same screen without interfering with each other.

10. The method according to claim 9, characterized in that When multiple areas are simultaneously performing 3D display, the central control management system provides a function of smooth transition at the area edges to avoid an abrupt visual effect caused by parallax or depth differences between areas. The smooth transition is achieved by adjusting the 3D parameters at the area edges to ensure that the 3D contents of different areas are visually coherent and natural. A transition area is defined between two adjacent 3D display areas. By gradually adjusting the parallax and depth parameters, the visual断层 between different areas is eliminated, making the 3D effect of the entire screen more unified.

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