Image sharpness Because the traditional TV set receives the radio frequency signal emitted by the TV station, this signal corresponds to the video image bandwidth is usually less than 6M, so the sharpness of the TV is usually greater than 400 lines, requiring the monitor to have a high image sharpness,
Therefore, professional monitor in the channel circuit compared to the traditional TV should have bandwidth compensation and lifting circuit, so that the frequency band is wider, the image sharpness is higher.
Color Restore Degree If the sharpness is mainly determined by the amplitude and frequency characteristics of the video channel, the reduction degree is mainly determined by the color signal of the red (R), Green (G), Blue (B) three base colors and the phase of the brightness signal in the monitor.
Because the monitor is usually observed as a static image, so the monitor color reduction requirements are higher than the TV set, so the professional monitor of the video channel in the Brightness, chroma processing and R, G, B processing should have accurate compensation circuit and delay circuit, to ensure that the bright/color signal and R, G, B signal phase synchronization. LCD monitor color has always been a concern, many manufacturers have put forward 16.2M and 16.7M These two standards, these two standards can intuitively reflect the LCD monitor color reduction ability.
If the LCD monitor color requirements are more stringent, with 16.7M products is the best choice.
Stability of the whole machine When the monitor constitutes a closed-circuit monitoring system, it usually takes 24 hours a day, 365 days a year for continuous and uninterrupted power-on (while the TV sets usually work only a few hours a day), and some monitors may have a worse application environment, which requires a higher reliability and stability of the monitor. Compared with the TV set, the Monitor's current, power consumption, temperature and anti-electrical interference, electrical shock ability and margin, as well as the average trouble-free use time are much greater than the TV, while the monitor must also use a fully shielded metal housing to ensure electromagnetic compatibility and interference performance; In the selection of components, Monitor use of the components of pressure, current, temperature, humidity and other aspects of the characteristics are higher than the use of television components, and in the installation, commissioning, especially the components and the whole machine aging process requirements, the requirements of the monitor is also higher, TV manufacturing when the whole machine aging is usually in the assembly line at room temperature 8 hours or so, And the monitor of the whole machine aging needs to be high temperature, high humidity closed environment aging assembly line on the power aging more than 24 hours, to ensure the stability of the whole machine.
