What are the advantages of LCD screens:
1. High display quality
Because every point of the LCD display keeps the color and brightness after receiving the signal, and emits light constantly, unlike the cathode ray tube display (CRT), which needs to constantly refresh the bright spot. Therefore, the LCD monitor has high image quality and will never flicker, minimizing eye fatigue.
2, a small amount of electromagnetic radiation
The display material of the traditional display is phosphor, which is displayed by the electron beam hitting the phosphor. The electron beam will generate strong electromagnetic radiation at the moment when it hits the phosphor. Although there are many display products that have been compared in dealing with the radiation problem. Effective treatment is to minimize the amount of radiation as much as possible, but it is difficult to completely eliminate it. Relatively speaking, liquid crystal displays have inherent advantages in preventing radiation, because there is no radiation at all. In terms of prevention of electromagnetic waves, liquid crystal displays also have their own unique advantages. It uses strict sealing technology to enclose a small amount of electromagnetic waves from the drive circuit in the display. In order to dissipate heat, ordinary displays must make the internal circuit as much as possible. In contact with the air, the electromagnetic waves generated by the internal circuit will leak to the outside in a large amount.
3, large viewing area
For displays of the same size, the viewing area of liquid crystal displays is larger. The viewing area of a liquid crystal display is the same as its diagonal size. In the case of cathode ray tube displays, the front panel of the picture tube has a frame around an inch, which cannot be used for display.
4. Small size and light weight
Traditional cathode ray tube monitors always have a heavy ray tube behind them. The liquid crystal display breaks through this limitation and gives people a brand new feeling. Traditional displays emit electron beams to the screen through an electron gun, so the tube neck of the picture tube cannot be made very short. When the screen is increased, the volume of the entire display will inevitably increase. The liquid crystal display achieves the display purpose by controlling the state of the liquid crystal molecules through the electrodes on the display screen. Even if the screen is enlarged, its volume will not increase proportionally, and its weight is much lighter than the traditional display with the same display area.
5, the picture effect is good
Compared with the traditional display, the liquid crystal display uses a pure flat glass plate from the beginning, and its display effect is flat and right-angled, which makes people have a refreshing feeling. Moreover, LCD monitors are easier to achieve high resolution on small-area screens. For example, a 17-inch LCD monitor can achieve a resolution of 1,280,1024. Usually, an 18-inch CRT color display with a resolution of 1,280,1024 or higher cannot be used. Completely satisfactory.
6, a wide range of applications
Because the original liquid crystal display cannot display delicate characters, it is usually used in electronic watches and calculators. With the continuous development and progress of liquid crystal display technology, character display has become more delicate, and it also supports basic color display, and is gradually used in LCD TVs, LCD monitors of video cameras, and handheld game consoles. The subsequent DSTN and TFT were widely used as liquid crystal display devices in computers. DSTN liquid crystal displays were used in early notebook computers; TFT was used in both notebook computers and mainstream desktop displays.
7, digital interface
LCD monitors are all digital, unlike cathode ray tube color monitors that use an analog interface. In other words, with the LCD display, the graphics card no longer needs to convert the digital signal into an analog signal and output it as usual. In theory, this will make color and positioning more accurate and perfect.
