Old big head display (crt display);
The scientific name of CRT display is "cathode ray tube", which is a display using cathode ray tube. It mainly consists of five parts: electron gun, deflection coil, shadow mask, high-voltage graphite electrode, phosphor and glass shell. This is one of the most widely used monitors. CRT flat panel display has the advantages of large viewing angle, no bad spots, high color reproduction, uniform chromaticity, adjustable multi-resolution mode and short response time, which is difficult for LCD display to surpass and cheaper.
Liquid crystal display (LCD):
Liquid crystal display (LCD) is a display used in digital clocks and many portable computers. LCD displays use two pieces of polarizing material with liquid crystal solution sandwiched between them. When an electric current passes through a liquid, the crystals will be rearranged so that light cannot pass through them. So each crystal is like a shutter, which can let light through or block it. At present, the scientific and technological information products of LCD are developing towards the goal of being light, thin, short and small, and the display products with a long history around computers are no exception. On the premise of portability and transportation, traditional display methods, such as CRT display and LED display panel, are limited by factors such as excessive size or huge power consumption, and cannot meet the actual needs of users. The development of liquid crystal display technology coincides with the development trend of current information products. Whether it is right-angle display, low power consumption, small size or zero radiation, users can enjoy the best visual environment.