Metaverse 3D display system, method and related equipment

Abstract

The present invention provides a metaverse 3D display system, method and related equipment for displaying a real 3D effect. The metaverse 3D display system includes a 3D display screen, which includes a liquid crystal grating, a liquid crystal display module and a backlight module that are sequentially attached from top to bottom, the liquid crystal grating is composed of grating units arranged in an array, the grating units correspond to the pixel units of the liquid crystal display module one by one, and the arrangement direction of the grating units is perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle less than 45 degrees; a processor is used to adjust the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture to be displayed; and a 3D image is displayed on the liquid crystal display module through the liquid crystal grating.

Description

Technical Field

[0001] The present invention relates to the field of three-dimensional image display, and in particular to a metaverse 3D display system, method and related equipment. Background Art

[0002] The Metaverse is a virtual world that is linked and created by scientific and technological means, and that maps and interacts with the real world. It is a digital living space with a new social system. At present, most display terminals of the Metaverse use head-mounted AR devices. However, just as communication terminals have various forms such as mobile phones, watches, tablets, and head-mounted devices, AR is not the only display terminal inherent in the Metaverse. The movie Avatar revealed a kind of holographic suspended aerial imaging, which has become people's ideal Metaverse display terminal. Controlling an "Avatar" to act and socialize in a different world is the prototype and ultimate dream of the Metaverse. In the movie Avatar 2, more than 10 years later, people finally realized a naked-eye 3D movie screen that does not require glasses, which is a leap forward in 3D display.

[0003] In the 3D display system, due to its unique characteristics, naked-eye 3D display does not require wearing visual aids glasses or helmets to watch 3D effects, and its realistic depth of field and three-dimensional sense greatly enhance the visual impact and immersion of the audience during the viewing experience, making it the best display product for product promotion, public publicity and image playback. At present, naked-eye 3D imaging can be divided into liquid crystal grating, liquid crystal electronic grating, electronic grating, physical cylindrical grating, physical slit grating in terms of structure, and can be divided into slit grating type, cylindrical lens grating type and projection grating in terms of principle. Due to their characteristics, slit grating type and cylindrical lens grating type both need to encode the display content, and at the same time, they have high requirements for the accuracy and uniformity of the slit grating and cylindrical lens grating structures; multi-view projection has a large volume, needs to process multi-channel projection data, and has high requirements for hardware. The high-speed scanning structure is simple, but the high-speed projector is expensive, and the synchronization requirements of the rotating structure and the projector are extremely high. Therefore, the existing naked-eye 3D technology still has room for improvement. Summary of the invention

[0004] The present invention provides a metaverse 3D display system, method and related equipment based on liquid crystal electronic grating, which are used to achieve a more realistic 3D display effect.

[0005] A first aspect of an embodiment of the present invention provides a metaverse 3D display system, comprising: a 3D display screen, wherein the 3D display screen comprises a liquid crystal grating, a liquid crystal display module and a backlight module sequentially bonded from top to bottom, wherein the liquid crystal grating is composed of grating units arranged in an array, wherein the grating units correspond one-to-one to pixel units of the liquid crystal display module, and wherein the arrangement direction of the grating units is perpendicular to or at an angle less than 45 degrees to the long side direction of the sub-pixel of the pixel unit; a processor, configured to adjust the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture to be displayed; and displaying a 3D image on the liquid crystal display module through the liquid crystal grating.

[0006] A second aspect of an embodiment of the present invention provides a 3D display method applied to a metaverse, wherein the 3D shooting system includes a mobile device having a camera and a target peripheral device, wherein the target peripheral device is installed on the mobile device, and includes: the camera, used to shoot a calibration plate, and obtain a first left view and a first right view through the lens of the target peripheral device; a calibration unit, used to calibrate the mobile device according to the first left view and the first right view; the camera is also used to shoot a target scene to obtain a second left view and a second right view; and a splicing unit, used to splice the second left view and the second right view to obtain a 3D picture.

[0007] A third aspect of the present invention provides a computer device comprising at least one connected processor, memory and transceiver, wherein the memory is used to store program code, and the processor is used to call the program code in the memory to execute the steps of the 3D display method applied to the metaverse described in the second aspect above.

[0008] A fourth aspect of the present invention provides a computer storage medium comprising instructions, which, when executed on a computer, enables the computer to execute the steps of the 3D display method applied to the metaverse as described in the second aspect above.

[0009] In summary, it can be seen that in the embodiment provided by the present invention, the Metaverse 3D display system includes: a 3D display screen, the 3D display screen includes a liquid crystal grating, a liquid crystal display module and a backlight module that are sequentially bonded from top to bottom, the liquid crystal grating is composed of grating units arranged in an array, the grating units correspond one-to-one to the pixel units of the liquid crystal display module, and the arrangement direction of the grating units is perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle of less than 45 degrees; a processor, which is used to adjust the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture to be displayed; and display a 3D image on the liquid crystal display module through the liquid crystal grating. It can be seen that by driving the electric field distribution of the liquid crystal by electric control, and adjusting the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture, the 3D picture can be displayed more realistically. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A virtual structural diagram of the Metaverse 3D display system provided by an embodiment of the present invention;

[0011] Figure 2a A scene application diagram of the Metaverse 3D display system provided by an embodiment of the present invention;

[0012] Figure 2b A possible arrangement diagram of components provided for an embodiment of the present invention;

[0013] Figure 3 A schematic diagram of a process of a 3D picture shooting method provided by an embodiment of the present invention;

[0014] Figure 4 A schematic diagram of the hardware structure of a server provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0016] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or modules is not necessarily limited to those steps or modules clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products or devices. The division of modules that appear in the present invention is only a logical division. There may be other division methods when implemented in actual applications, such as multiple modules can be combined or integrated into another system, or some feature vectors can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, and the indirect coupling or communication connection between modules can be electrical or other similar forms, which are not limited in the present invention. Furthermore, the modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed in multiple circuit modules, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present invention.

[0017] The metaverse is a virtual world that is linked and created by scientific and technological means, mapped and interacted with the real world, and has a digital living space with a new social system. Its essence is the process of virtualization and digitization of the real world, which requires a lot of transformation of content production, economic system, user experience and content in the physical world.

[0018] Based on this concept, the present invention provides a metaverse 3D display system, see Figure 1 , a schematic diagram of the structure of a metaverse 3D display system 10 provided in an embodiment of the present invention, comprising: a 3D display screen 101 and a processor 102. The 3D display screen comprises a liquid crystal grating 1011, a liquid crystal display module 1012 and a backlight module 1013 which are sequentially attached from top to bottom, the liquid crystal grating 1011 is composed of grating units arranged in an array, the grating units correspond one-to-one with the pixel units of the liquid crystal display module 1012, and the arrangement direction of the grating units is perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle less than 45 degrees. The processor 102 is used to adjust the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture to be displayed; and display a 3D image on the liquid crystal display module through the liquid crystal grating.

[0019] It should be noted that when the 3D display screen 101 is in 3D display mode, the processor 102 applies voltage to the grating unit included in the liquid crystal grating 1011; when the 3D display screen 101 switches from 3D display mode to 2D display mode, the processor 102 stops applying voltage to the grating unit.

[0020] Optionally, the processor 102 is specifically used to: adjust the voltage value of the electrode corresponding to the grating unit corresponding to each pixel according to the change value of the depth information corresponding to each pixel in the 3D picture to be displayed, the 3D picture includes a 2D picture and a corresponding depth map. When the pixel value changes, the corresponding depth value changes accordingly. The side of the liquid crystal grating facing the liquid crystal screen is the ground electrode, which can also be called a plane electrode, and the other side is provided with an array-arranged strip electrode. The strip electrode corresponds to the pixel unit of the liquid crystal display module one by one. The strip electrode is located at the center of the pixel and is perpendicular to the long side direction of the sub-pixel. For details, please refer to Figure 2b , is a possible component arrangement diagram provided by an embodiment of the present invention. As shown in the figure, the arrangement direction of the grating unit is perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle less than 45 degrees. The strip electrode is located at the center of the pixel and is perpendicular to the long side direction of the sub-pixel, i.e., the RGB sub-pixel. An AC voltage relative to the ground level is applied to each of the strip electrodes at a specific frequency, wherein the voltage applied by each of the strip electrodes changes with the depth value of the corresponding pixel, so that the focal length of the cylindrical lens equivalent to the grating unit corresponding to the corresponding pixel changes.

[0021] Optionally, the Metaverse 3D display system also includes: an optical system, the pixels of the liquid crystal display module 1012 are converged in the space in front of the 3D display screen through a lens, the optical system is used to reflect the pixels of the liquid crystal display module and present them as a virtual image, wherein the pixels whose convergence point is located before the first reflecting mirror surface present an entering-screen effect, and the pixels whose convergence point is located after the first reflecting mirror surface present a screen effect, the optical system includes one or more reflections, including one or more of the following reflectors: a concave reflector, or a convex reflector, or a plane reflector, and the first reflecting mirror surface is the mirror surface of the last reflection.

[0022] It should be noted that when the 3D display screen 101 is in 3D display mode, a non-zero basic voltage is applied to all electrodes. The basic voltage is used to form a virtual image of the pixels of the liquid crystal display module through the optical system, and together with the optical system, determines the minimum viewing angle range of the metaverse 3D display system, wherein V=A+D*B, V is used to represent the voltage applied to the electrode of the corresponding pixel, wherein A is used to represent the basic voltage, D is used to represent the depth value of the corresponding pixel, and B is a constant coefficient.

[0023] In addition, the backlight module includes a plurality of light source arrays arranged in sequence and spaced apart, and a gap filling layer is included between the light source array and the liquid crystal display module, and the thickness of the gap filling layer is M, wherein M=L*D / N, the L is used to represent the viewing distance, which is the distance from the human eye to the liquid crystal display module, the D is the minimum size of the pixel molecule unit, and the N is used to represent the pupil distance, which is the actual distance between the viewer's eyes.

[0024] Optionally, the Metaverse 3D display system also includes: an electrically-controlled liquid crystal lens panel, wherein the electrically-controlled liquid crystal perspective panel is attached to the surface of the liquid crystal display module, and when the electrically-controlled liquid crystal lens panel is working, the naked-eye 3D display system is in a 3D display mode; when the electrically-controlled liquid crystal lens panel is not working, the 3D display system is in a 2D display mode.

[0025] To better understand the embodiments of the present invention, please refer to FIG. 2 . Pixel 1 and pixel 2 are respectively projected onto a reflector through corresponding liquid crystal lenses, generating a virtual image of pixel 1 and a virtual image of pixel 2, forming a depth of field difference between the two, which is mapped to the eyes of the viewer. The viewer's brain synthesizes the images seen by the left eye and the right eye into an image with a 3D effect.

[0026] The above describes the embodiment of the present invention from the perspective of the Metaverse 3D display system. The following describes the embodiment of the present invention from the perspective of the 3D display method applied to the Metaverse.

[0027] See also Figure 3 , Figure 3 A flow chart of a 3D display method applied to a metaverse provided in an embodiment of the present invention, the 3D display method includes a 3D display screen, the 3D display screen includes a liquid crystal grating, a liquid crystal display module and a backlight module sequentially attached from top to bottom, the liquid crystal grating is composed of grating units arranged in an array, the grating units correspond one-to-one to the pixel units of the liquid crystal display module, the arrangement direction of the grating units is perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle less than 45 degrees, and the specific steps include:

[0028] 301. Adjust the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture to be displayed;

[0029] 302. Display a 3D image on the liquid crystal display module through the liquid crystal grating.

[0030] Specifically, according to the depth information change value corresponding to each pixel in the 3D picture to be displayed, the voltage value of the electrode corresponding to the grating unit corresponding to each pixel is adjusted, the 3D picture includes a 2D picture and a corresponding depth map, when the pixel value changes, the corresponding depth value changes accordingly, the liquid crystal grating faces the liquid crystal screen on one side as a ground electrode, and the other side is provided with array-arranged strip electrodes, the strip electrodes correspond to the pixel units of the liquid crystal display module one by one, the strip electrodes are located at the center of the pixel and perpendicular to the long side direction of the sub-pixel, and an AC voltage relative to the ground is applied to each strip electrode at a specific frequency, wherein the voltage applied by each strip electrode changes with the depth value of the corresponding pixel, so that the focal length of the cylindrical lens equivalent to the grating unit corresponding to the corresponding pixel changes.

[0031] It should be noted that when the 3D display screen is in 3D display mode, a voltage is applied to the grating unit included in the liquid crystal grating; when the 3D display screen switches from 3D display mode to 2D display mode, the voltage is stopped from being applied to the grating unit. When the 3D display screen is in 3D display mode, all electrodes are applied with a non-zero basic voltage, and the basic voltage is used to form a virtual image of the pixels of the liquid crystal display module through the optical system, and together with the optical system, determine the minimum viewing angle range of the metaverse 3D display system, wherein V=A+D*B, V is used to represent the voltage applied to the electrode of the corresponding pixel, wherein A is used to represent the basic voltage, D is used to represent the depth value of the corresponding pixel, and B is a constant coefficient. In addition, if the viewing angle range is less than the preset value in actual application, the thickness of the liquid crystal box in the optical system cannot be too thick. If the liquid crystal box is too thick, it needs to be filled with gaps, and the gaps are a kind of micro-particle transparent glass beads, which have an impact on the screen display.

[0032] Optionally, the metaverse 3D display system further includes: an electrically controlled liquid crystal lens panel, the electrically controlled liquid crystal perspective panel is attached to the surface of the liquid crystal display module, when the electrically controlled liquid crystal lens panel is working, the naked eye 3D display system is in 3D display mode; when the electrically controlled liquid crystal lens panel is not working, the 3D display system is in 2D display mode. Structurally, the electrically controlled liquid crystal lens panel specifically includes: a first lens substrate, a second lens substrate arranged oppositely, and a liquid crystal located between the first lens substrate and the second lens substrate. The first lens substrate has a plurality of discrete first electrodes arranged in a matrix, which are located on the first lens substrate. In this embodiment, the material of the transparent conductive layer can be indium tin oxide (ITO) or indium zinc oxide (IZO), so that the electrode does not affect the light transmission ability of the electrically controlled liquid crystal lens panel. The first electrode is coupled to the first driving circuit through a first thin film transistor (not shown), and the second electrode is connected to a common potential, which is grounded or a fixed voltage. In this embodiment, the second electrode can be a whole continuous transparent conductive layer. The display screen is divided into three sub-pixel sets of RGB, and a sub-pixel set R (the other two sub-pixel sets are processed in the same way) is divided in a direction perpendicular to the center line of the liquid crystal micro-lens, and the R pixel set is divided into a left sub-pixel set and a right sub-pixel set, so that the sub-pixel unit sets display the left eye image and the right eye image respectively. The images displayed by the two pixel unit sets are refracted by the corresponding liquid crystal micro-lenses and projected to the left eye and right eye of the viewer respectively. The brain integrates the left eye image and the right eye image to present a 3D stereoscopic image. Not only can the horizontal viewing angle present a 3D display effect, but the vertical viewing angle can also show a 3D effect, which improves the viewing angle of the 3D / 2D switchable display device.

[0033] In addition, the backlight module includes a plurality of light source arrays arranged in sequence and spaced apart, and a gap filling layer is included between the light source array and the liquid crystal display module, and the thickness of the gap filling layer is M, wherein M=L*D / N, the L is used to represent the viewing distance, which is the distance from the human eye to the liquid crystal display module, the D is the minimum size of the pixel molecule unit, and the N is used to represent the pupil distance, which is the actual distance between the viewer's eyes.

[0034] Figure 4 It is a structural diagram of the server of the present invention, such as Figure 4As shown, the server 400 of this embodiment includes at least one processor 401, at least one network interface 404 or other user interface 403, a memory 405, and at least one communication bus 402. The server 400 optionally includes a user interface 403, including a display, a keyboard or a clicking device. The memory 405 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk storage. The memory 305 stores execution instructions. When the server 400 is running, the processor 401 communicates with the memory 405, and the processor 401 calls the instructions stored in the memory 405 to execute the above-mentioned 3D display method applied to the metaverse. The operating system 404 includes various programs for implementing various basic services and processing hardware-based tasks.

[0035] The server provided in an embodiment of the present invention, whose processor 401 can execute the above-mentioned operations performed by the 3D display method applied to the metaverse, to implement a 3D display method based on the metaverse, and its implementation principle and technical effects are similar, and will not be described in detail here.

[0036] An embodiment of the present invention also provides a computer-readable medium, comprising computer-executable instructions, which enable a server to execute the 3D display method applied to the metaverse described in the above embodiment. The implementation principle and technical effects are similar and will not be repeated here.

[0037] It should also be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. In addition, in the drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines.

[0038] Through the description of the above implementation modes, the technicians in the relevant field can clearly understand that the present invention can be implemented by means of software plus necessary general hardware, and of course, it can also be implemented by special hardware including special integrated circuits, special CPUs, special memories, special components, etc. In general, all functions completed by computer programs can be easily implemented by corresponding hardware, and the specific hardware structures used to implement the same function can also be various, such as analog circuits, digital circuits or special circuits. However, for the present invention, software program implementation is a better implementation mode in more cases. Based on such an understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer floppy disk, a U disk, a mobile hard disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a disk or an optical disk, etc., including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0039] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0040] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website site, a computer, a server, or a data center to another website site, a computer, a server, or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or a data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive Solid State Disk (SSD)), etc.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate from the essence of the corresponding technical solutions.

Claims

1. A metaverse 3D display system, characterized in that: include: A 3D display screen, the 3D display screen comprising a liquid crystal grating, a liquid crystal display module and a backlight module which are sequentially attached from top to bottom, the liquid crystal grating being composed of grating units arranged in an array, the grating units corresponding one to one with pixel units of the liquid crystal display module, and the arrangement direction of the grating units being perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle less than 45 degrees; A processor, configured to adjust a voltage applied to a corresponding grating unit according to a pixel depth value of a 3D image to be displayed; Displaying a 3D image on the liquid crystal display module through the liquid crystal grating; When the 3D display screen is in 3D display mode, the processor applies a voltage to a grating unit included in the liquid crystal grating; When the 3D display screen switches from the 3D display mode to the 2D display mode, the processor stops applying voltage to the grating unit; According to the depth information change value corresponding to each pixel in the 3D picture to be displayed, the voltage value of the electrode corresponding to the grating unit corresponding to each pixel is adjusted, and the 3D picture includes a 2D picture and a corresponding depth map. When the pixel value changes, the corresponding depth value changes accordingly. The side of the liquid crystal grating facing the liquid crystal screen is the ground, and the other side is provided with array-arranged strip electrodes, the strip electrodes correspond one-to-one to the pixel units of the liquid crystal display module, the strip electrodes are located at the center of the pixel and are perpendicular to the long side direction of the sub-pixel, and an AC voltage relative to the ground is applied to each of the strip electrodes at a specific frequency, wherein the voltage applied by each of the strip electrodes changes with the depth value of the corresponding pixel, so that the focal length of the cylindrical lens equivalent to the grating unit corresponding to the corresponding pixel changes.

2. The metaverse 3D display system according to claim 1, characterized in that: Also includes: Optical system, The pixels of the liquid crystal display module are converged in the space in front of the 3D display screen through a lens. The optical system is used to reflect the pixels of the liquid crystal display module and present them as a virtual image, wherein the pixels whose convergence point is located before the first reflecting mirror surface present an entering-screen effect, and the pixels whose convergence point is located after the first reflecting mirror surface present a screen effect. The optical system includes one or more reflections, including one or more of the following reflectors: a concave reflector, a convex reflector, or a plane reflector. The first reflecting mirror surface is the mirror surface of the last reflection.

3. The metaverse 3D display system according to claim 2, characterized in that: When the 3D display screen is in 3D display mode, all electrodes are applied with a non-zero basic voltage, and the basic voltage is used to form a virtual image of the pixels of the liquid crystal display module through the optical system, and together with the optical system, determines the minimum viewing angle range of the Metaverse 3D display system, wherein: V=A+D*B, where V is used to represent the voltage applied to the electrode of the corresponding pixel, wherein A is used to represent the basic voltage, D is used to represent the depth value of the corresponding pixel, and B is a constant coefficient.

4. The metaverse 3D display system according to claim 1, characterized in that: The backlight module includes a plurality of light source arrays arranged in sequence and at intervals, and a gap filling layer is further included between the light source array and the liquid crystal display module, and the thickness of the gap filling layer is M, wherein: M=L*D / N, where L is used to represent viewing distance, which is the distance from human eyes to the liquid crystal display module, D is the minimum size of a pixel molecule unit, and N is used to represent pupil distance, which is the actual distance between the viewer's eyes.

5. The metaverse 3D display system according to claim 4, characterized in that: The Metaverse 3D display system also includes: an electrically controlled liquid crystal lens panel, which is attached to the surface of the liquid crystal display module. When the electrically controlled liquid crystal lens panel is working, the Metaverse 3D display system is in a 3D display mode; when the electrically controlled liquid crystal lens panel is not working, the Metaverse 3D display system is in a 2D display mode.

6. A 3D display method applied to the metaverse, characterized in that: include: A 3D display screen, the 3D display screen comprising a liquid crystal grating, a liquid crystal display module and a backlight module which are sequentially attached from top to bottom, the liquid crystal grating being composed of grating units arranged in an array, the grating units corresponding one to one with pixel units of the liquid crystal display module, and the arrangement direction of the grating units being perpendicular to the long side direction of the sub-pixel of the pixel unit or at an angle less than 45 degrees; adjusting the voltage applied to the corresponding grating unit according to the pixel depth value of the 3D picture to be displayed; Displaying a 3D image on the liquid crystal display module through the liquid crystal grating; When the 3D display screen is in 3D display mode, the processor applies voltage to the grating units included in the liquid crystal grating; When the 3D display screen switches from a 3D display mode to a 2D display mode, the processor stops applying voltage to the grating unit, and adjusts the voltage value of the electrode corresponding to the grating unit corresponding to each pixel according to the change value of the depth information corresponding to each pixel in the 3D picture to be displayed, wherein the 3D picture includes a 2D picture and a corresponding depth map, and when the pixel value changes, the corresponding depth value changes accordingly. The side of the liquid crystal grating facing the liquid crystal screen is the ground, and the other side is provided with array-arranged strip electrodes, the strip electrodes correspond one-to-one to the pixel units of the liquid crystal display module, the strip electrodes are located at the center of the pixel and are perpendicular to the long side direction of the sub-pixel, and an AC voltage relative to the ground is applied to each of the strip electrodes at a specific frequency, wherein the voltage applied by each of the strip electrodes changes with the depth value of the corresponding pixel, so that the focal length of the cylindrical lens equivalent to the grating unit corresponding to the corresponding pixel changes.

7. A computer device, characterized in that: include: At least one connected processor, memory and transceiver, wherein the memory is used to store program code, and the processor is used to call the program code in the memory to execute the 3D display method applied to the metaverse as described in claim 6 above.

8. A computer storage medium, characterized in that: include: Instructions, when the instructions are executed on a computer, enable the computer to execute the 3D display method applied to the metaverse as described in claim 6.

Images