Compared with traditional CRTs, LCD displays are not only small in size, thin in thickness, light in weight, low in energy consumption, low operating voltage (1.5 to 6V), non-radiating, flicker-free, and can be directly matched with CMOS integrated circuits.

1. High display quality

Since each point of the LCD display keeps that color and brightness after receiving the signal, it emits light constantly, instead of constantly refreshing the bright points like the cathode ray tube display (CRT). Therefore, the liquid crystal display has high image quality and will never flicker, which minimizes eye fatigue.

2. Low radiation, good health

The radiation of LCD monitors is much lower than that of CRT monitors (it's just low, not completely free of radiation, and electronics are more or less radiated), which is a good news for people who work in front of a computer all day. The display material of traditional displays is phosphor powder, which is displayed by the electron beam striking the phosphor powder. The electron beam will generate strong electromagnetic radiation at the instant when it hits the phosphor powder. In contrast, liquid crystal displays have inherent advantages in preventing radiation. Because there is no radiation at all. In terms of prevention of electromagnetic waves, the liquid crystal display also has its own unique advantages. It uses strict sealing technology to seal a small amount of electromagnetic waves from the driving circuit in the display. In order to radiate heat, ordinary displays must let the internal circuits as much as possible. In contact with air, the electromagnetic waves generated by the internal circuit will “leak” to a large amount.

3. Large visible area

For the same size display, the viewing area of the liquid crystal display is larger. The viewing area of an LCD monitor is the same as its diagonal size. A bezel of about one inch around the front panel of a cathode ray tube display tube cannot be used for display.

4. Wide range of applications

The original liquid crystal displays were not used to display delicate characters, and were often used in electronic watches and calculators. With the continuous development and progress of liquid crystal display technology, the character display has begun to become delicate, while also supporting basic color display, and is gradually used in LCD TVs, LCD monitors for video cameras, and handheld game consoles. The DSTN and TFT that appeared later were widely used as liquid crystal display devices in computers. DSTN liquid crystal displays were used in early notebook computers; TFT was used in notebook computers (now most notebook computers use TFT displays) , And used on mainstream desktop monitors.

5. The picture is soft and does not hurt the eyes

Unlike CRT technology, the LCD screen does not flicker, which can reduce the damage to the eyes of the monitor, and the eyes are not easy to fatigue. Compared with the traditional display, the liquid crystal display uses a flat flat glass plate from the beginning. Its display effect is flat and right-angled, which makes people have a refreshing feeling. And LCD monitors are easier to achieve high resolution on small area screens. For example, a 17-inch LCD monitor can achieve a 1280 × 1024 resolution, while an 18-inch CRT color display usually uses a resolution higher than 1280 × 1024 The picture effect is not completely satisfactory.

6. Digital interface

LCDs are all digital, unlike cathode-ray tube color displays, which use analog interfaces. In other words, using an LCD monitor, the graphics card no longer needs to convert digital signals to analog signals and output them as usual. In theory, this will make color and positioning more accurate and perfect.

7. Thin and light body, save space

Compared with the more bulky CRT display, the LCD display requires only a third of the space of the former. A traditional cathode ray tube display always has a clumsy tube behind it. LCD monitors break through this limitation and give people a whole new feeling. The traditional display uses an electron gun to emit an electron beam to the screen, so the neck of the picture tube cannot be made very short. When the screen is increased, the volume of the entire display must be increased. The liquid crystal display achieves the display purpose by controlling the state of the liquid crystal molecules through electrodes on the display screen. Even if the screen is enlarged, its volume will not increase proportionally, and it is much lighter than a conventional display with the same display area.

8. Low power consumption, power saving, no high temperature

It belongs to a low power consumption product and can be completely non-heating (mainly power consumption and heat generation exists in backlight tubes or LEDs), while CRT displays inevitably generate high temperatures due to imaging technology. The interior of a traditional display is composed of many circuits. When these circuits drive a cathode ray picture tube to work, a large amount of power is consumed, and as the volume continues to increase, the power consumed by its internal circuits will certainly increase. In comparison, the power consumption of a liquid crystal display is mainly consumed by its internal electrodes and driving IC, so the power consumption is also much smaller than that of a traditional display.