Didon DHN is a national high-tech enterprise that develops, produces and sells laser projection display equipment, projection peripheral products, pure hardware fuses, video processors and image processors. It was officially registered in 2014 and is headquartered in Shanghai, China. Didong Industrial Building, 3525 South Road. Didong DHN is a leading AV solution provider in China, focusing on the AV industry, insisting on pioneering and innovation, quality first, integrity management, multi-win, in new media, new applications, new education, exhibitions, government and enterprises. Constructing end-to-end solution advantages, providing advertisers, entertainment service customers, corporate customers, business customers and consumers with competitive AV solutions, products, technologies and services, and committed to building a world-class nation Brand.