In the era of live broadcasting for all, the hardware equipment in the live broadcast room has been upgraded from a simple mobile phone holder to a professional film and television production scene.

As the core hardware supporting the visual presentation of live broadcasting, the LED video display system is becoming the “invisible hit” in the live broadcasting industry with an industry growth rate of 30% per year. SihtLED will introduce the details of live LED video in detail.

Definition and Development History of Live LED Video Wall System

The live LED video screen system is an intelligent display solution with LED display technology as the core, integrating multiple modules such as video processing, lighting control, and real-time interaction. From the early virtual studio of TV stations to the current live broadcast application for all. LED display technology has undergone three key evolutions:

• 2008: The first full-color LED scren entered commercial use, marking the initial maturity of LED display technology in commercial applications.
• 2016: Small-pitch LED broke through the P2.0 technical bottleneck, so that LED display is more delicate and suitable for more application scenarios.
• 2021: COB packaging technology has achieved mass production of P0.9 micro-pitch, further improving the clarity and visual effects of LED display.

Core components of live LED video system

If you want to complete a complete live LED video system, you need to include the following core elements:

• Display unit: The basic display component composed of LED modules is the core of the display screen.
• Control system: Including video processor, sending card, receiving card, etc., responsible for converting video signals into signals that can be recognized by LED modules.
• Auxiliary system: Including heat dissipation device, power distribution system, structural frame, etc., to ensure the stable operation of the system.
• Broadcast control software: An intelligent system that supports multi-source switching and special effects superposition to enhance the flexibility and interactivity of live broadcast.

Comparative advantages of live LED screen and traditional live broadcast solutions

Compared with traditional live broadcast solutions (such as green screen keying and physical background), LED screen system has the following advantages:

Scene switching speed:

 It can complete scene switching within 0.2 seconds, while green screen keying takes 3-5 seconds, and physical background cannot be switched.

Color reproduction:

The LED display system can achieve 98% NTSC color gamut coverage, with high color reproduction, while green screen keying is greatly affected by lighting, and physical background has a fixed color temperature.

Space utilization:

You can customize special-shaped LED video walls to make full use of space, while green screen keying requires reserved green screen space, and physical backgrounds occupy fixed space.

Equipment investment return rate:

The investment return rate of LED screen systems is 3-5 years, while green screen keying is 1-2 years, and physical backgrounds cannot be reused.

8 LED purchase indicators necessary for professional live broadcast rooms

When you choose a live broadcast LED video system, you need to pay attention to the following 8 indicators:

Pixel Pitch

Core logic: viewing distance (meters) ≈ pixel pitch (mm) × 1000. This formula can help you choose the appropriate pixel pitch based on the viewing distance.

Golden formula: small and medium-sized live broadcast rooms (P1.2-P1.8), large live broadcast rooms (P2.0-P2.5).

Brightness and contrast

Brightness standard: 800-1500cd/m² is recommended for indoor use.

The LED screen supports intelligent brightness adjustment to adapt to different light environments.

Contrast ratio: ≥5000:1, HDR10 standard is preferred, thus improving the layering and detail performance of the picture.

Refresh rate and grayscale level

Minimum requirement for live broadcast: 3840Hz refresh rate + 16bit grayscale, thus ensuring smooth and smooth picture without ghosting.

• sports standard:
• 7680Hz refresh rate + 22bit grayscale, so as to better suit live broadcast scenes with extremely high picture requirements.

Color gamut and color accuracy

Key parameters: DCI-P3 ≥95%, Delta E ≤3, making the colors rich and accurate.

Actual measurement method: You can use professional equipment such as ColorMunki to detect whether it meets the color gamut and color accuracy requirements on site.

Splicing accuracy

Physical seam: ≤0.1mm, seamless splicing of the picture.

Visual compensation: Supports intelligent brightness/color compensation technology to further improve the picture splicing effect.

Signal processing capability

Input interface: HDMI2.1×4, DP1.4×2, SDI×2, etc., supporting multiple signal source access.

Decoding capability: 8K@60Hz real-time decoding to meet the needs of high-definition live broadcasting.

Heat dissipation and energy consumption

Power density: ≤500W/m², supporting efficient system operation and controllable energy consumption.

Heat dissipation solution: Hybrid heat dissipation (air cooling + liquid cooling) is preferred, so that the system can run stably for a longer time.

Protection level

Basic requirements: IP31 (proof of solid foreign objects, vertical dripping)

Special scenarios: You need dustproof (IP5X) or liquidproof (IPX3), please choose the appropriate protection level according to the specific application scenario.

Six mainstream LED live broadcast room scene configuration solutions

Beauty live broadcast room (10-15㎡)

Recommended configuration: P1.25 curved LED screen + soft light system

Advantages: It can enhance the immersion of the picture and the softness of the light.

Special functions: Support close-up automatic focus compensation to make product details clearly presented.

Case reference: Li Jiaqi’s live broadcast room uses a P1.2 screen, and the error rate of lipstick color testing is reduced by 72%.

Clothing live broadcast room (20-30㎡)

Golden solution: P1.53 ground interactive screen + top-mounted P1.8 main screen Advantages: Improve interactivity and visual effects.

Technical highlights: Dynamic tracking projection + AR virtual fitting, allowing the audience to experience the clothing effect immersively.

3C digital live broadcast room (15-20㎡)

Professional configuration: P1.86 four-sided surround LED screen, full display of product details.

Core advantages: 360° product display + dynamic visualization of parameters, thereby improving product awareness and willingness to buy.

Food live broadcast room (10-12㎡)

Best choice: P2.0 transparent  LED screen + atomization system, creating a dreamy visual effect.

Innovative application: steam special effect simulation + dynamic display of nutritional ingredients, enhance food temptation and information communication effect.

Home live broadcast room (30-50㎡)

Scene solution: P2.5 multi-screen system to create an immersive home experience.

Immersive experience: Virtual space switching + light and shadow atmosphere linkage, making the audience feel as if they are in a real home environment.

Jewelry live broadcast room (8-10㎡)

Top configuration: P0.9 Micro LED + spectrum analysis system to enhance the dazzling effect of jewelry.

Value enhancement: Diamond fire dynamic capture, transaction conversion rate increased by 40%, making jewelry more shining and moving.

Good guide: 7 common misunderstandings in procurement

Blind pursuit of high resolution

Correct cognition: P1.2 and below need to be matched with 4K camera to play the effect. High-resolution LED video system requires high-configuration camera to match, otherwise it cannot give full play to its advantages.

Pit avoidance strategy: Please match the display parameters according to the camera resolution.

Ignore lighting effect coordination

Key data: In order to make the picture brightness moderate and the light soft, it is recommended that the ratio of LED screen brightness to surface light is 1:1.2,

Solution: Configure an intelligent dimming system to automatically adjust the LED screen brightness and surface light brightness according to the ambient light.

Ignore the moiré problem

Formation principle: The camera CMOS interferes with the LED pixel array, causing moiré to appear on the screen.

Elimination solution: You can use optical processing film + camera anti-strobe settings to effectively eliminate the moiré phenomenon.

Structural design defects

Typical problems: The resonance of the bracket causes the picture to shake, affecting the viewing experience.

Professional advice: In order to make the picture stable and without shaking, you need to use an independent load-bearing structure + shock-absorbing device.

Signal transmission bottleneck

Common faults: Signal attenuation caused by long-distance transmission affects the picture quality.

Countermeasures: In order to ensure stable signal transmission without attenuation.

, you can use optical fiber transmission + signal relay amplification,

Insufficient cooling system

Danger warning: The failure rate doubles for every 10°C increase in temperature, which seriously affects the stability and service life of the system.

Optimization solution: Install a temperature control sensor + intelligent cooling system to monitor the temperature in real time and automatically adjust the cooling effect.

Ignoring after-sales service

Industry standard: For stable system operation, the bad pixel rate during the warranty period is less than 0.0001%

Guarantee strategy: Please choose a service provider that support 7×24 hours response

Future trend of LED live Display screen: 5 major technological innovation directions

Transparent display technology

Technological innovation:  a transparency exceeding 85% realize mixed reality application with virtual and real integration.

Application: It can be used for virtual fitting, product display and other scenarios to improve user experience and interactivity.

Mini LED and Micro LED technology

Technological innovation: Mini LED technology will be further popularized to achieve higher brightness and contrast while reducing costs; Micro LED technology will break through the difficulties of large-scale mass production and achieve higher resolution and lower power consumption.

Application: Mini LED is suitable for high-end cinemas, professional live broadcast rooms and other scenarios. It can provide excellent visual effects; Micro LED is expected to become the mainstream technology in the future high-end display market,such as

• large-scale conferences
• concerts
• other scenarios.

Energy interactive technology

Technological innovation: AI technology will be further integrated into LED screen systems to realize intelligent interactive functions such as gesture recognition and voice control.

Applications: The audience can interact with the live broadcast screen through gestures or voice, which enhances the fun and interactivity of the live broadcast.

Energy-saving and environmentally friendly technology

Technological innovation: LED video systems will adopt more efficient energy-saving technologies, such as low-power drive circuits, intelligent brightness adjustment, etc., to reduce energy consumption and carbon emissions.

Application: Green live broadcast will become an industry trend, and LED video screen will become an important tool for energy conservation and emission reduction.

Flexible display technology

Technological innovation: Flexible LED display technology will achieve breakthroughs, realize curling, folding and other morphological changes, and broaden application scenarios.

Application: Flexible LED video systems can be used to irregular-shaped installation spaces, such as cylindrical and arc-shaped, to enhance the creativity and personalization of live broadcast rooms.

Conclusion

With the continuous development of the live broadcast industry, LED video wall systems have become an indispensable core hardware for professional live broadcast rooms.

When you choose an LED screen, please focus on key indicators such as spacing, brightness and contrast, refresh rate and grayscale level, color gamut and color accuracy, splicing accuracy, signal processing capability, heat dissipation and energy consumption, and protection level.

If you need this type of LED screen, SightLED has many good solutions. We hope that our LED video wall can help you play a more important role in the live broadcast industry and bring more shocking visual effects and richer interactive experience to the audience.