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Classification of monitors
According to size: LCD monitor is divided into 8/10/12/15/17/19/20/22/24/26/32/37/40/42/46/47/52/57/65/70/82 /108 inch monitor and so on.
By color: color, black and white monitor.
Divided by scanning method: interlaced and progressive scan.
Divided by type: LCD monitor, rear projection, CRT monitor, plasma monitor, etc.
According to the screen points: flat, general screen, spherical and so on.
According to the material points: CRT, LED, DLP, LCD and so on.
Branded by: Makefor (Eastern) Monitor, Skyworth LCD Monitor, Asianda Monitor, LEBO LCD Monitor, Tyalux LCD Monitor, TCL LCD Monitor, Hizor LCD Monitor, SONY LCD Monitor, JVC LCD Monitor, TVlogic LCD Monitor, G&S LCD Monitor, Rayon LCD Monitor, Samsung LCD Monitor, Boxian LCD Monitor.
According to the use of points: security monitors, surveillance monitors, radio and television monitors, industrial monitors, computer monitors and so on.
Clarity definitions and test methods <br> <br> monitor resolution monitor is determined by the pitch and the bandwidth convergence errors CRT monitor and a video channel, for a PAL signal, its channel bandwidth The resolution of the resolution is 1M78 line. For the NTSC system, it is 1M56 line; in addition, to ensure the corresponding clarity of the monitor, the point distance and convergence error of the kinescope used by the monitor must also meet the corresponding requirements. For convergence error, for example: Monitor horizontal resolution ≤ horizontal width (mm)/center convergence error (mm).
It must be pointed out that some manufacturers exaggerate the definition of monitor clarity when the monitor appears. In fact, the evaluation of the monitor definition can be judged by the subjective evaluation of the image on the one hand, and it can also be determined by the display result of a dedicated instrument, an image signal generator with multiple groups of images.
Monitor resolution detection method
As the display terminal of the closed-circuit monitoring system, the monitor is an indispensable part of the monitoring system in addition to the camera. Monitors have long been used mainly in finance, jewelry stores, hospitals, subways, train stations, airports, exhibition halls, commercial office buildings, leisure and entertainment venues, etc., and are responsible for security work. In recent years, due to the development of technology, the cost of the closed-circuit monitoring system has been well adjusted. Nowadays more and more small businesses also have affordability and started to build their own monitoring systems for security or other monitoring needs.