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On the 70th anniversary for the founding of People's Republic of China, a huge five-star red flag appeared solemnly and shining at the southern end of the Tian An Men Jinshui Bridge. In a short time, the image of the national flag began to change, sometimes it was a magnificent pattern, sometimes it was a variety of creative and extraordinary shapes. These constantly shocking images presented a visual wonder to all the world.

According to BOE official introduction, the light of this frame are LED screens handheld by 3,290 people, it add a beautiful scenery to Tian An Men Square and also provide the best blessing for the 70th birthday of China.

The intelligent display solution which also showed as 3290pcs collapsible handheld LED screens is provided by BOE.

With the extremely fast response of the handheld LED screen, the pictures of "Red Flag", "We Walk on the Road", "On the Field of Hope", "Leading the New Era" and other related topics are constantly changing.

How is this ultra-high-speed fast change display screen realized?

BOE developed this world's first collapsible LED splicing array system solution and integrated software and hardware. With the world's leading asynchronous signal transmission system, the world's first large-scale video content can be quickly sent to 3290 screens in a very short time. Meanwhile, LoRa (long-range radio), low-latency control system is used with synchronous play time correction technology to achieve high-precision synchronization of video images.

In addition, the BOE IoT solution also performs MD5 (Information Digest Algorithm) two-way password verification on the video files in the device to ensure information security and confidential content is foolproof. The screens is made of carbon fiber, aluminum alloy, hollow LED light board, etc, which are all very light. The humanity design reduces the total weight of the handheld light screen by nearly 60% under the premise of ensuring durability and battery life, which greatly reduces the operator's difficulty in holding.

The IoT innovation solution launched by BOE has a wide application space in large-scale performances, important events, exhibitions, and urban lighting design.