1. Play a role for the convenience of the audience. Various content can be played back through the LED electronic display screen located at the appropriate location in the school (for sports activities as an example):
(1) Display the names of the teams in the competition and the live scores, countdowns, etc.;
(2) Display the progress of the game, such as the above, the second half or the first few sections;
(3) Display the number of fouls of the team members in the competition and the total number of fouls of the entire team;
(4) Display request for substitution or suspension.
2. Play the role of propaganda and popularization of knowledge. Through the display screen, you can play a variety of knowledge about the school's rules and regulations and common knowledge of teachers and students to improve the ideology of teachers and students.
3. Play the role of information release. Through the display screen, the status of various classes, teachers and schools, the notification of various activities and the deeds of advanced individuals and collectives can be released to improve the spiritual and civilized qualities of teachers and students.
4. Play the role of public service advertising. The following content can be played through the display screen:
(1) School rules and the Code of Conduct for Civilization Teachers and Students;
(2) School profiles, school mottos, school slogans, and the purpose of the school;
(3) Broadcast important news of the government (such as CCTV's "News Network", etc.);
(4) Weather forecast;
(5) The government's propaganda slogan, etc.
5, play a role in setting off the atmosphere. When the school organizes various events, the display screen can display the welcome words of the leaders or VIPs attending the opening ceremony or various events, the wishes for the competition or events, the thank-you words to the sponsors, the celebration of major events and important festivals. Words, etc.

6. Play the role of commercial advertising. Schools can use the pre-match and match time to play VCD commercials or images and texts of sponsors and major companies during the major events. They can also play ads on the screen during the competition. Under good operation, it can create considerable economic benefits. At the same time, it can also openly welcome all walks of life to the school to hold various activities at the right time, so that the school can rent electronic display screens and places for the other party, thus not only expanding the division. The vision of the students and the popularity of the school have also brought a considerable income to the school. Play as a double-edged effect.