It has been 17 years since the initial synonym of "advertising machine" - "digital sign" - "commercial display" in the industry. At first, the industry developed in the form of small workshops, in the early days of Shang Xian. As long as we can make an advertising machine, we can light it up and use it. At that time, one of the most important things that commercial display sales did was to tell consumers "what is advertising machine? How to use the advertising machine? Where is "and" advertising function used? ". Gradually through the efforts and efforts of early business show practitioners, but also to meet the needs of the development of the times, business show has been recognized by the market and thrive.