Monitor closed-circuit monitoring system (CCTV) part of the display part of the monitoring system, monitoring system standard output, with the monitor display to view the image of the front end gets here. The essential terminal equipment as video surveillance, act as the "eyes" of the monitoring personnel, but also for the ex post check withered play a key role. Monitor the development of experienced black and white to color, from flashing to flashing from a CRT (cathode ray tube) to the process of development of LCD (liquid crystal), each process has a lot of qualitative leap. Surveillance images from black and white to color, so monotonous world towards a colorful, colorful, lifelike images of the world; does not flash from flashing to bring health to the monitoring staff; CRT (cathode ray tube) to LCD (liquid crystal ) brought environmental protection, which is the final goal of the monitor. Monitor the size of the: 15/17/19/20/22/26/32/37/40/42/46/52/57/65/70/82 inch monitor. By color: color, black-and-white monitor. Material: CRT, LED, DLP, LCD. Scan points: flat screen, progressive scan. The on-screen points: the flat screen puping, spherical. By brand: TCL monitor, Hizor monitor, Sony monitor, JVC monitor, G & S, etc., in accordance with the purposes: security monitor, monitoring, monitors, television monitors, industrial monitors, computer monitors, by : type of LCD monitor rear projection CRT monitor, plasma, LCD monitor resolution, energy saving, long life (up to 80,000 hours), low maintenance costs, the disadvantage is that when pieced together patchwork, 40, 42 46-inch LCD monitor splicing gap is about 20MM, the characteristics of the rear projection is patchwork, bulky, power consumption, short life (typically 5000 hours want to change the light bulbs) and low brightness (bright in the middle surrounded by dark) CRT the product being replaced by the remaining three products. Plasma advantages of high brightness and contrast. The disadvantage is not suitable for display still pictures (likely to cause screen burn), power consumption, patchwork stitching. Monitor resolution, with camera with number of lines, the actual use of generally required to monitor the number of lines you want to match with the camera. In addition, some monitors, as well as audio input, S-video input, RGB component input, in addition to audio input monitoring system used, most of the remaining functions for image processing.