What is the essential difference between liquid crystal display and ordinary display?

The difference between liquid crystal display and ordinary display is that it is thin in appearance and does not occupy space; Second, no radiation is good for health. Third, no flicker, which is good for eyes. Fourthly, the energy consumption is small, which is much smaller than CRT display and saves energy. Fifth, it is completely flat and has no visual distortion. Liquid crystal display (LCD) is a flat and thin display device, which consists of a certain number of color or black and white pixels and is placed in front of a light source or reflector. Because of its low power consumption, liquid crystal displays are favored by engineers and are suitable for electronic devices that use batteries. 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. According to the driving mode, LCD can be divided into static driving, simple matrix driving and active matrix driving. Among them, the passive matrix can be divided into twisted nematic；; TN), super twisted nematic; ; STN) and other passive matrix-driven liquid crystal displays; Active matrix type can be roughly divided into thin film transistor type (thin film transistor; TFT) and diode type (metal/insulator/metal; MIM) two ways.