What are the advantages of LCD screens?

With the continuous development of display technology, LCD display screen has become a mainstream display screen with its various advantages. Today I will share with you its five major advantages.

1. Zero radiation, low energy consumption, small heat dissipation

The display principle of the LCD screen is to restore the picture by twisting the deflection angle of the liquid crystal molecules in the liquid crystal pixels to use the background light. It does not have ultra-high-voltage components inside like the CRT, and will not cause excessive x-rays due to high voltage. Moreover, the machine structure and circuit are simple, the modularity and the high integration of the chip are enough to minimize the electromagnetic radiation generated when the circuit is working. This design directly reduces the power consumption of the circuit and generates very little heat. Although the LCD monitor may produce slight electromagnetic radiation during operation, this can easily be solved by shielding the circuit. Due to the consideration of heat dissipation, CRT monitors are not allowed to drill holes in the shielding cover to cause radiation leakage.

2. Slim and lightweight

It was the emergence of the LCD display that made the invention of the laptop possible. Similarly, although a desktop LCD monitor is larger in size and weight than a laptop, it pales in comparison to the bulky and heavy CRT monitor. Compared with 15-inch monitors, the depth of CRT monitors is generally close to 50 centimeters, while the depth of Jaws' latest LCD monitor NF-1500MA is less than 5 centimeters! With changes in consumer attitudes and living environment, people have higher and higher requirements for the size and weight of household electrical appliances. With its inherent advantages of being thin and lightweight, LCD monitors have become the display device most likely to break the monopoly of CRT monitors.

3. Accurately restore images

The LCD display uses a direct digital addressing display method. It can convert the video signal output by the graphics card through AD conversion, and then directly map the video signal one-to-one on the screen according to the "address" signal in the signal level. displayed on the LCD pixels. The CRT monitor relies on the electromagnetic field generated by the deflection coil to control the periodic scanning of the electron beam on the screen to achieve the purpose of displaying images. Since the movement trajectory of the electron beam is easily affected by the environmental magnetic field or geomagnetism, the absolute positioning of the electron beam on the screen cannot be achieved. Therefore, CRT monitors are prone to geometric distortion and linear distortion of the picture, which cannot be fundamentally eliminated. This possibility does not exist with LCD monitors. The LCD monitor can perfectly present the picture on the screen without any geometric distortion or linear distortion.