The difference between LCD monitors and LCD monitors

1, the type of LCD screen

During the testing process, we first paid attention to the monitor's LCD screen because the price of the LCD screen accounted for about half of the monitor's cost. It is understood that most of the screen types of LCD monitors use TFT screens. In the TFT-LCD monitor, the function of the TFT is equivalent to a switch tube, which is turned on when power is on, and the liquid crystal molecules are arranged in an orderly manner so that the light can easily pass through; when the power is off, liquid crystal molecules are disordered and light is prevented from passing through. The TFT-LCD panel is composed of two precision sodium-free glass substrates and an intermediate liquid crystal sandwich. Liquid crystal, or liquid crystal, is a substance that is both liquid (fluid) and crystallike (optically crystalline). The order of the liquid crystal molecules has a certain order, and the arrangement of the liquid crystal molecules will change under the influence of the external electric field, thereby affecting its optical properties. The advantage of the LCD screen is its small size, light weight, large display area, stable picture, no radiation, low energy consumption, and environmental protection.

At present, the most widely used security industry is the DID (Digital Intelligence Display) TFT LCD screen, which is designed and produced according to the technical requirements of professional monitors used in security, radio and television, medical, industrial, and public media distribution. Its excellent display performance has been recognized as the most high-end and most ideal LCD monitor display.

According to reports, manufacturers producing LCD screens mainly include Samsung, LG, Sharp, and Chi Mei and other mainstream manufacturers. Therefore, when selecting the LCD monitor, it is best to understand which brand of LCD screen it uses, because the LCD screen determines the physical resolution, contrast, brightness, response time, viewing angle and other features. In general, the performance of these indicators is not related to monitor manufacturers, it is mainly determined by the screen manufacturer.

2, image processing module solutions

Speaking of this, you have to first answer a question that users often mention. "Can I use a TV as a monitor?" Of course it is not. First, the image processing solutions for monitors and televisions are very different. The image processing solutions for monitors are more demanding than those for televisions. The image processing solutions for televisions are much simpler.

From the view of the circuit structure of the monitor, the front-end video signal is converted into an image signal processing module after analog-digital conversion. The core of the module is a high-performance flat-panel image processor that can process the front-end incoming digital video signals in multiple formats and output the flat-panel image display data format accepted by the flat panel display module, which can provide different ratios of scaling to the images. Supports different resolution LCD panels up to FULLHD (1920×1080P). Its main functions are: digital chrominance brightness processing, color gamma correction, image size scaling, image quality improvement, motion compensation, edge smoothing, etc., in addition to dynamic noise reduction, dynamic GAMMA curve, APL, etc., to dynamically enhance the contrast of the picture , sharpness, let users get better visual effects.

According to reports, the current image processing solutions are mainly based on solutions from Germany, the United States, and Taiwan, such as Trident and Mstar. Therefore, the quality of the image processing solution determines the quality of the monitor to a great extent. In addition, the composite video signal, high-definition color-difference signal, VGA (RGB), DVI, HDMI signal processing also reflects the strength of a manufacturer's R & D capabilities.

Can an LCD TV be used as a monitor?

The monitor is simpler in function than a television, but its performance is higher than that of a television. The core components of LCD monitors are professional image processing solutions and LCD panels. Unlike LCD TVs, it uses an image processing scheme that is higher than LCD TVs. If a liquid crystal television is used as a monitor, the effect may not be much different from the effect of the LCD monitor when the signal is relatively good, but when the signal is not good, the effect is significantly worse.

LCD monitors often require 24 hours a day, 365 days of continuous power-on use each year to form a closed-circuit monitoring system (while televisions typically only work a few hours per day), and some monitor applications may be harsh. It requires more reliability and stability of the monitor. Compared with televisions, in terms of design, the monitor's current, power consumption, temperature and resistance to electrical interference, electrical shock, and average time between failures are much greater than those of televisions, and monitors must also be used. Fully shielded metal shell ensures electromagnetic compatibility and interference performance; in the selection of components, the characteristics of the components used in the monitor, such as voltage resistance, current, temperature, and humidity, are higher than those used by the television; In the installation and debugging, especially the components and the aging process requirements, the monitor's requirements are also higher. The aging of the whole TV set is usually about 8 hours at room temperature and the monitor's aging. It needs to be electrified for aging for more than 24 hours in the aging pipeline of high temperature and high humidity confined environment to ensure the stability of the whole machine.

Monitor: Generally refers to the security system used to monitor your entire security problem (you see the factory door, rent the house to install monitoring and unification).

Display: Our computer is used to display the LCD and desktop monitors, display: refers to the display screen above the display screen.

In general, the monitor's use environment is much worse than the monitor