What Are The Advantages Of LCD LCD Screen Compared To CRT Monitor in Use?

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

The display principle of LCD liquid crystal screen is to realize the restoration of the picture by twisting the deflection angle of the liquid crystal molecules in the liquid crystal pixel to achieve the background light. There is no internal ultra-high voltage component like CRT, and there will be no X-ray excess due to high pressure. Moreover, the structure and circuit of the machine are simple, the modularization and the high integration of the chip are sufficient to minimize the electromagnetic radiation generated when the circuit is working. This design directly reduces the power consumption of the circuit, and the heat generation is also very small. Although the LCD liquid crystal screen may produce slight electromagnetic radiation during operation, it is easy to solve it by shielding the circuit. Since the CRT monitor takes heat dissipation into consideration, it is not allowed to drill holes in the shielding cover to cause radiation leakage.

2. Slim and lightweight

It was the advent of the LCD screen that made the invention of the portable computer possible. Similarly, although desktop LCD screens are larger in size and weight than laptop computers, they are insignificant compared to the bulky and heavy CRT monitors. Compared with a 15-inch monitor, the depth of a CRT monitor is generally close to 50 cm, while the depth of the latest LCD screen NF-1500MA from Jaws is less than 5 cm! With changes in consumer perspectives and living environments, people have higher and higher requirements for the volume and weight of household appliances. LCD liquid crystal screen has become the most likely display device to break the monopoly of CRT display due to its inherent advantages of slim and light weight.

3. The display characters are sharp

The picture is stable without flickering. The unique display principle of liquid crystal display determines that each pixel on the screen emits uniformly, and the red, green and blue pixels are closely arranged. The video signal is directly sent to the back of the pixel to drive the pixel to emit light, so there will be no convergence inherent in traditional CRT displays. And focus on bad ills. Therefore, the text display effect on the LCD screen is quite different from the traditional CRT monitor. The fonts of the LCD screen are very sharp, and there is no such phenomenon as the blurring of the fonts and the fonts that appear when the CRT monitor displays the text. Moreover, since the LCD screen is always shining after power on, the backlight works at high frequency, and the display screen is stable without flickering, which is conducive to using the computer for a long time. The CRT display relies on the electron beam to repeatedly hit the phosphor to achieve light, which will cause the brightness to periodically flicker. It is easy to cause eye discomfort after prolonged use.

4. Precisely restore images

LCD liquid crystal screen adopts direct digital addressing display mode. It can directly correspond the video signal on the screen one by one according to the "address" signal in the signal level after AD conversion of the video signal output by the graphics card. 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 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 phenomena such as geometric distortion and linear distortion that cannot be eliminated fundamentally. The LCD liquid crystal screen does not have this possibility. The LCD screen can display the picture perfectly on the screen without any geometric distortion or linear distortion.