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XR LED Display Application Guide

Table of contents

Application areas of XR LED displays
What equipment is needed to run an XR LED screen?
What are the technical requirements for LED displays in XR virtual studios?
How to customize an XR LED display
How to make XR videos

With the continuous innovation and development of technology, various emerging technologies are changing people’s lifestyles and work patterns. Among them, “XR” technology, which is mainly characterized by virtual reality (VR), augmented reality (AR) and mixed reality (MR), has become a hot topic that has attracted much attention. In this process, LED display screens once again played an extremely important role. LED display screen can be said to be the most critical hardware component in the virtual studio. Currently, the virtual studios used in the radio, television and film and television industries are mostly composed of three parts: LED sky screen, LED wall screen and floor tile screen. Therefore, they have also become a strong correlation for LED companies. Business, while developing new business directions for enterprises, it also puts forward strict requirements on all links in the industrial chain.

Virtual reality games: XR LED displays can be used for virtual reality games, providing a more immersive, high-resolution and high-frame-rate gaming experience. Players can fully immerse themselves in the virtual game world.

Simulation training: For training and simulation applications such as flight simulators, medical surgical simulators and military training. XR LED displays can provide a realistic environment, making training more realistic and effective.

XR LED displays

Medical and surgical applications: In the medical field, XR LED displays can be used for surgical planning, case demonstrations and medical education. They can display anatomy and medical images to help doctors and students better understand and manage disease.

Special Effects and 3D Display: XR LED displays can be used to present special effects and 3D effects to make movies more visually appealing and creative. These displays can display high-resolution special effects scenes to enhance immersion for moviegoers.

Virtual filming and backgrounds: XR technology combined with LED displays can be used for virtual filming, allowing actors to perform in a virtual environment without the need for actual locations. This provides greater production flexibility and efficiency.

XR LED displays have a wide range of applications, covering multiple industries and fields, providing innovative and interactive solutions that help improve user experience, increase efficiency and enhance communication.

What equipment is needed to run an XR LED screen?

XR LED screen: used to display virtual content and augmented reality content.

Computer or embedded system: In order to drive the XR LED screen to display content, a computer or embedded system is required. This system is typically used to run XR applications, render 3D graphics, and interact with XR devices.

XR devices: To enable interaction and track the user’s head and hand movements, a virtual reality head-mounted display (VR HMD) or AR glasses are usually required. These devices often include sensors and cameras that track the user’s movements and location.

Controller or handle: For XR applications that require hand interaction, users usually need a controller or handle to manipulate and interact with objects in the virtual environment.

Content and applications: Finally, content and applications suitable for XR LED screens need to be developed or acquired. These contents can include virtual worlds, simulation training, entertainment experiences, etc.

Interactive sensors: In some XR applications, interactive sensors can be used to sense the user’s gestures, touches, or other body movements to achieve more advanced interactivity.

Tracking system: For some XR applications, additional tracking systems are required to track the user’s location and movements to ensure that virtual content remains synchronized with the real world. These systems can include base stations or cameras, etc.

XR LED displays

What are the technical requirements for LED displays in XR virtual studios?

The chief analyst of Omdia said that the virtual studio business includes large-area LED display products of different sizes, which are closely related to the main business of LED companies and are an extension of the traditional business of LED companies to more professional use scenarios. Unlike the past, which only had requirements for brightness, grayscale, refresh rate, and consistency, the LED display screen used in virtual shooting needs to ensure the shooting effect of a professional camera. In addition to the conventional indicators that people pay attention to, it also needs to meet the needs of virtual shooting. High-standard frame rate, color, delay, synchronization and other related index requirements. Here is the XR LED display product guide.

The main problem in the application of LED display screens in film shooting is to solve the problem of image quality of LED display screens under cameras. This includes many technologies, such as HDR display technology, color restoration technology, high frame rate and high refresh, and high Grayscale and so on.

From the video source to the display screen to the camera is an E2E process. One of the core technical elements of the entire product is color restoration. The first problem to be solved in color restoration is whether the color gamut restoration caused by the changes in color space throughout the production process is standard. Questions include whether the restored spectrum of each color channel is very pure, whether there is a color temperature shift at a large viewing angle, and whether there is uneven color temperature when the screen is heated. These all have very high technical requirements.

The second one is the phenomenon of tailing and tearing. Professional cameras are often used to shoot high-speed motion pictures. In order to prevent high-speed motion pictures from being out of sync and tearing, the LED display must achieve a high frame rate. It used to require 60Hz and 120Hz, but now it requires 240Hz. This may happen in the future. higher.

The third one is high dynamic contrast. Because the camera is an optical imaging device, how to restore more image details of the display in the camera requires the entire dynamic contrast of the LED display to be very high, that is to say, the range from the brightest to the darkest area is very wide, otherwise you will It’s possible that you can’t have both daytime and moonlit night scenes, that is, the HDR function.

The fourth is the moiré problem. Moiré pattern is actually caused by the difference in the resolution of the photosensitive device of the light imaged by the camera and the distance between the light-emitting devices of the LED display itself. At this time, it is necessary to optimize the mask design, optimize the light emission design of the LED, and adjust the focal length, depth of field, and viewing angle of the camera. reduce. Teach you 8 ways to remove the moire effect of LED displays.

XR LED displays

How to customize an XR LED display

Determine needs: First, you need to determine the purpose and needs of using XR LED displays, such as displaying virtual content, augmented reality content, or simulating the physical environment of the real world, etc.

Select a display: Choose a suitable XR LED display based on your needs, such as a display that meets your needs in terms of resolution, brightness, and color performance.

Configure hardware: Configure corresponding hardware devices according to needs, such as head-mounted displays, handles, sensors, and computers.

Write software: Write corresponding software according to needs, such as software for processing virtual content and augmented reality content.

Installation and debugging: Install all hardware and software and debug to ensure that all equipment is working properly.

Training and Usage: Train end users or operators to ensure they properly use and maintain custom XR LED displays.

How to make XR videos

Determine needs: First, you need to determine the purpose and needs of using XR video, such as displaying virtual content, augmented reality content, or simulating real-world physical environments.

Writing scripts: Write corresponding scripts according to needs to describe the plots and scenes of virtual content and augmented reality content.

Prepare hardware and equipment: According to your choice, obtain the required hardware and equipment, such as XR headsets, AR glasses, cameras, sensors, etc. Ensure these devices are capable of capturing and displaying virtual content.

Choose creative tools and software: Choose the right creative tools and software for producing and editing XR video content. Some commonly used tools include Unity, Unreal Engine, Blender, etc.

Create 3D models and virtual content: Produce 3D models, virtual scenes and virtual objects for use in XR videos. This content will interact with the real world and therefore requires appropriate design and production.

Scene setting and calibration: Scene setting and calibration of XR equipment and cameras to ensure that virtual content is relatively accurately aligned with the real world. This is crucial to achieve a stable AR experience.

Record and Capture: Use XR devices to capture video, recording both real-world and virtual content. This usually requires special recording equipment and software.

Post-production: In post-production, real-world and virtual content are composited together, color corrected, special effects added, and image processed. This step usually requires advanced video editing tools.

Add interactivity: If your project requires it, add interactive elements with your audience, such as gesture recognition, controller operation, or touch screen interaction.

Testing and optimization: Repeated testing and optimization are carried out during the production process to ensure that the performance, stability and user experience of XR videos are optimal.

Publish and distribute: Publish the finished XR video to the appropriate platform or app store for viewers to download or access. Guaranteed to work with a variety of XR devices and operating systems.

In the next 2-3 years, the global virtual studio market’s demand for LED displays is expected to reach more than 10 billion yuan. Overseas, especially the European and American film and television industries are developed and mature, and this field will continue to grow rapidly; as more and more people in the film and television industry accept this With this shooting method, the Chinese market demand will also achieve rapid growth in the future.

 

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