How can the card camera be seen on the monitor?

You need to connect computer equipment through usb interface to receive and use the display equipment that transmits signals.

The webcam cannot be directly connected to the monitor to display images. Because the monitor is only a display device and has no decoding function, it needs to be decoded by the graphics card of the computer host and sent to the monitor for display. The webcam can be connected to the computer host by wired or wireless way, and the wired way usually uses a switch to connect.