The main parameters of the LCD monitor 
 Contrast 
 Relative to the brightness, the contrast ratio is a measure of a LCD monitor key indicators. Display contrast ratio of 350:1 generally meet the normal display on the computer, television and other image features; LCD monitor for monitoring, because the product itself is relatively high requirements for the image, the general color LCD monitor at the expense of the machine parameters to increase the contrast, brightness. Therefore, under normal circumstances with a color LCD monitor look as good as TV LCD TV, LCD monitor but the contrast, sharpness, brightness will be significantly higher than LCD monitors, LCD TV. 
 Brightness 
 General use cd / ㎡ to measure, monitor TV wall a few meters away from the watch, you need relatively high intensity to achieve the desired results. But the high brightness LCD monitor will also affect the overall life. To 20.1-inch LCD monitor, for example, the brightness of the best results should 600cd / ㎡ or so. 
 Sharpness, saturation 
 Similar to the contrast of these two parameters is the evaluation of the effect of a LCD monitor is an important indicator. Theoretically the higher the resolution, the screen better. The saturation is mainly based on site conditions should be adjusted. 
 Resolution 
 Resolution refers to the LCD screen on the horizontal and vertical lines of the LCD. Resolution of a LCD monitor to evaluate the most important indicators. We are here talking about the LCD monitor's physical resolution is not able to achieve the maximum resolution. In theory, the 20-inch LCD monitors are compatible with 1920 * 1080 HD resolution. But each have a size of the LCD monitor best resolution, but under normal circumstances, the best resolution of this LCD monitor is the physical resolution. 
 Perspective 
 Perspective, that is to screen in the middle of the center line, to see the full image of the normal maximum range of angles. This indicator depends on the perspective used in LCD screen. Generally small size of the viewing angle is relatively small example: 15 inches can often only reach 60 ° -85 °. Large-size LCD screen can basically reach 178 °. 
 Input 
 LCD monitors generally have a rich port, input ports generally have BNC, VGA, S Terminal, Component, HDMI, DVI, RCA audio. Output terminals are usually loop-through BNC. 
 Size 
 LCD screen size is the LCD display part of the diagonal length. 1 inch = 2.56 cm. As LCD manufacturers are generally in order to make cutting a single piece of LCD screen in the future to create the highest profits in the cutting process on a lot of research. Take the 20-inch LCD monitor is used in LCD screen, which uses 19.7-inch there is also an 20.1-inch LCD screen. But we generally referred to as 20-inch LCD. But from a cost point of these two dimensions of price is not the same. So when purchasing replacement LCD monitor be sure to ask a specific size. 
 Power Plate 
 LCD monitors and LCD monitors as well as ordinary, like LCD televisions use LCD power supply board is required to power the LCD screen. The difference is that the selection of the power board, an LCD monitor will use 7 * 24 hours of industrial-grade power supply board; and monitors and LCD TVs because of their market is mainly for the civilian market, using the power supply is mainly ordinary power. In the monitoring project to work long hours, the power supply board life can be imagined. 
 LCD driver program 
 LCD driver program, in fact, that is, liquid crystal display driver board. Select a different driver board, there will be a different display. TV uses a general three-panel TV. That supports VGA, S video, AV signal. This board shows the main focus on the overall color and saturation, generally use the standard definition resolution 1366 * 768. Therefore, the modified LCD monitor TV access television signals when the effect is relatively good. The professional LCD monitors use a professional monitor driver board, focusing on the overall display Aung brightness, contrast and dynamic effects processing. Resolution can reach 1920 * 1080. In the case of the use of HD cameras to achieve the effect is not TV, the display can achieve.