Remote control is more convenient. Ordinary televisions are operated by remote control. However, there are a lot of users who use multiple monitors to monitor multiple places together. At this time, if you use remote control, you cannot control each monitor. For the convenience of operation, the monitors are provided with RS232 serial port connection, which is convenient for the monitor to connect to the central control or computer, and carry out remote unified management through the control software.

As an important application product, monitors of various types emerge in an endless stream, and monitors with advanced technologies such as liquid crystal, plasma, light emitting diode, etc. have been widely used.