1. The stability of the whole machine: When the monitor constitutes a closed-circuit monitoring system, it usually needs to be powered on 24 hours a day, 365 days a year without interruption (while the TV usually only works for a few hours a day), and some monitor applications The environment may be harsh, which requires higher reliability and stability of the monitor.
2. Color reproduction: If the definition is mainly determined by the amplitude-frequency characteristics of the video channel, the reproduction is mainly determined by the chromaticity of the three primary colors of red (R), green (G), and blue (B) in the monitor Determined by the phase of the signal and the brightness signal. Since what the monitor observes is usually a static image, the requirements for the color reproduction of the monitor are higher than that of the TV. Therefore, the professional LCD monitor should have accurate compensation in the brightness, chroma processing and R, G, and B processing. Circuit and delay circuit to ensure the phase synchronization of the bright/color signal and the R, G, and B signals.
3. Image processing: Ordinary monitors usually watch fast-changing moving pictures, and have poor image processing capabilities for still pictures. The monitor mainly monitors still pictures, so the monitor is more professional in image processing, and professional LCD monitors The device has a bandwidth compensation and boost circuit, the video bandwidth reaches 20M, which greatly improves the definition, professional 3D digital comb filter, enhances the brightness and chroma digital noise reduction processing capability, enhances the motion detection capability, and significantly improves the smoothness of the moving image edge It greatly improves the layering of the picture, can better express the details, and make the picture more delicate and natural.
4. The interface is richer than that of the monitor, because the input signal of the monitor is generally a camera, but it may be a matrix, computer, etc., so the input interface of a general LCD monitor has DVI, VGA, HDMI, YPbPr, BNC, etc., To meet the needs of different occasions.
5. There is a certain gap between the price of regular LCD monitors and LCD monitors, so there are many so-called low-priced LCD monitors on the market, which are actually modified displays. A 19-inch LCD monitor with a size of less than 1000 can basically be said to be a different case for the display, and it may even use an old screen. Please pay attention to the distinction between the majority of engineering companies, dealers and purchasers.
6. The viewing angle of the LCD monitor can reach 178 degrees, while the ordinary LCD can only see a blank at 178 degrees. This is a very important criterion for distinguishing between LCD monitors and LCDs.
7. The driving scheme is different, that is, the display motherboard scheme is different. Since the LCD display usually takes less than 8 hours to turn on, it uses a civilian-level display motherboard, while the LCD monitor has to bear twenty-four hours a day. Therefore, a professional monitor motherboard must be used to ensure higher brightness/contrast/clarity, etc., thereby reducing the use loss of the screen. If an ordinary display is used for a long time, its brightness and contrast will drop quickly, affecting its service life. This is why most LCD monitors can display images normally after the project has just been debugged, but part of the screen will be dark after being turned on continuously for a period of time.
8. In terms of the level of the LCD screen, the LCD monitor uses a civilian display, while the formal industrial monitor uses a high-brightness industrial-grade A+ LCD screen. Its technical parameters are much higher than ordinary LCD monitors. , So a good LCD monitor is more expensive than an LCD monitor, and it will also achieve a good image effect.
