Energy Saving and Environmental Protection: The Future Trend of Green Display
Technical paths:
◦ Common cathode drive: Reduce the working voltage of LEDs through a shared cathode circuit, reducing power consumption by more than 30%.
◦ Intelligent dimming: Dynamically adjust brightness according to ambient light and image content to avoid energy waste from "full-power operation".
◦ Material innovation: Adopt environmentally friendly materials such as lead-free solder and recyclable aluminum to reduce carbon emissions in the production process.
9. Protection Grade: The "Survival Guarantee" for Outdoor Display
IP grade: Outdoor screens need to reach IP65 or above (dust and water proof), and some extreme environments require IP67 (short-time immersion resistant).
Protection design:
◦ Three-proof coating: Moisture and salt spray treatment of circuit boards to extend service life.
◦ Heat dissipation system: Adopt natural convection or forced air cooling design to ensure stable operation in high-temperature environments (operating temperature range -40℃~60℃).
◦ Lightning protection: Built-in surge protection device to avoid damage to equipment in thunderstorm weather.
10. Industry Applications and Cases: The "Last Mile" of Technology Implementation
Shanghai Sansi: As a technological benchmark in the LED display field, its products cover full-scenario needs such as ultra-high definition small-pitch (P1.0-P2.5), Micro LED and creative display (e.g., immersive CAVE system).
Typical cases:
◦ Hong Kong-Zhuhai-Macao Bridge: Adopt P10 outdoor screens with a brightness of 8000 nits, resistant to level 16 typhoons, and operate continuously for 5 years without failure.
◦ Shanghai Tower: A 1368㎡ P1.25 indoor screen with a resolution of 16K, used for the smart city command center.
◦ CCTV Spring Festival Gala: Use Sansi flexible LED screens to achieve a 360° surround stage effect, with a 3840Hz refresh rate to eliminate motion blur.
Summary: Future Direction of LED Large Screen Technology
With the breakthroughs in Mini/Micro LED, COB packaging, quantum dot and other technologies, LED screens will develop towards higher resolution (16K+), lower power consumption (<100W/㎡) and thinner form (<5mm). At the same time, integration with 5G, AI and XR (Extended Reality) will spawn new forms such as "metaverse display" and "holographic interaction", redefining the boundary of visual experience.
