During the Shanghai World Expo, the Expo Center will serve as the Expo Operation Command Center, Celebration Conference Center, News Center, Forum Activity Center, etc. It is the main working place for the operation and management of the Shanghai World Expo. The LED display provided by Dachen Optoelectronics is located in the lobby of the Expo Center Pavilion. It has four floors and a display area of ​​400 square meters. The screen weighs only 25 kg/m2. The artistry of its design highlights the solemn atmosphere of the Expo Center. 
It is understood that the LED display adopts P18 structure, the transparency reaches 30%, achieves high transparency through higher resolution, looks like a curtain of a horizontal fence, can stand behind the screen to see the scene behind the screen. . At the same time, it can support 150 degree full-view symmetry, whether it is direct view or standing at different angles in the hall, you can clearly see the image on the screen.
The LED display screen is advanced in technology, adopts modular integrated design, easy to install, disassemble and clean, saves related operation time after installation and wiring, facilitates ground test, ensures that each module is tested and tested before assembly, and reduces repeated construction time. And can achieve front and rear maintenance. Low-voltage power supply, low heat generation, the display is innovative, large in area, eye-catching, with high gray level and high refresh rate, so that high-quality photos can be taken by different types of cameras and cameras. Video animation. The gray level of the control system reaches 16384 (after correction), the refresh rate is ≥1000HZ, and the visual update rate is high.
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