In the office, the Mobile Smart Board Interactive Whiteboard integrates many conference room office equipment such as projectors, electronic whiteboards, screens, speakers, TVs, computers, etc., which not only reduces complexity, but also makes the conference room environment more concise and comfortable without taking up space. The display has the characteristics of clarity, high brightness, and high contrast to solve the deficiencies and limitations of traditional projector equipment that rely too much on light in display. It can also realize the cross-space transmission of on-site audio, video and screen writing content through the Internet, which perfectly interprets remote video conferences.