video wall raspberry pi zero

Digital signage is a brand new media concept, which refers to public places where large shopping malls, supermarkets, hotel lobbies, restaurants, cinemas and others converge, and publish business, finance and entertainment through large-screen terminal display devices. Information multimedia professional audio-visual system. Its purpose is to broadcast advertising information to a specific group of people in a specific physical place and a specific time period, so that it has the effect of advertising. In foreign countries, some people put it alongside paper media, radio, television, and the Internet, calling it the “fifth media.” Overview With the continuous development of modern technology, the application of digital display technology will be everywhere. Digital signage relies on the integration of network and multimedia technologies to release and process information in the form of media, and interact with customer feedback in a timely manner. It has been widely used in finance, telecommunications, hospitals, stores, supermarkets, hotels, public places and other fields. The system adopts advanced design concepts and open interfaces, which can integrate a variety of applications. The digital signage system can count and record the playing time, number of times and playing range of multimedia content. It can also realize more powerful interactive functions while playing, which brings opportunities for the creation of new media. Features 1. Foolish program editing interface. Operators can use editing and publishing software to publish various text, icons, animations, videos, audio information and other digital information anytime, anywhere without special training, and integrate them into a “digital sign” for

The ultra-narrow LCD splicing screen is based on pure hardware and adopts parallel high-speed graphics processing technology to realize the unified processing of multiple high-speed video signals, fundamentally replace the plug-in splicing controller, and solve the problem of limited VGA signal input. Clarity, brightness, and color saturation are three important performance indicators of liquid crystals. The ultra-narrow-edge LCD splicing unit has the characteristics of high definition, high brightness, and high color gamut. Because the LCD uses backlight tubes as the light source, the edges are generally wide. The 40-inch ordinary LCD screen has a margin width of more than 11mm. If used for splicing, the splicing gap should be at least 22mm, which will affect the visual effect. The LCD splicing wall adopts a liquid crystal screen with a narrow-edge structure design, and the edge is reduced by more than double, which does not affect the visual effect when used for splicing. The LCD splicing screen has ultra-narrow edges, the number of splicing can be selected arbitrarily (row (m) X column (n)), and the size of the screen also has a variety of options to meet the needs of different use occasions. The ultra-narrow edge of the LCD splicing screen can be customized according to the requirements of different users, and you can choose functions such as single-screen display, full-screen display, and arbitrary combination display. In view of the inconsistency of parameters between the LCD screen and the driving circuit of the LCD splicing screen, the Tianjin LCD splicing screen