A brief talk about LCD display.

Liquid crystal display, abbreviated as LCD in English, is a type of flat panel display. It is used for screen display of televisions and computers. The advantages of this display are low power consumption, small size and low radiation.

Liquid crystal display (LCD) is a type of display used for digital clocks and many portable computers. LCD displays use two polarized materials, with a liquid crystal solution between them. When current passes through the liquid, the crystals are rearranged so that light cannot pass through them. Therefore, each crystal is like a shutter, which can allow light to pass through and block light.

The main classifications of LCD screens are as follows:

1. Liquid crystal displays can be classified into three types according to the driving method: static drive (Static), simple matrix drive (Simple Matrix) and active matrix drive (Active Matrix).

2. Passive matrix type can be divided into twisted nematic type, super twisted nematic type and other passive matrix driven liquid crystal displays;

3. The active matrix type can be roughly divided into two types: thin film transistor type and two-terminal diode type.

In terms of the scope and level of application of liquid crystal display technology, active matrix driving technology is dominated by thin film transistor (TFT), which is mostly used in notebook computers and animation and image processing products. Pure matrix driving technology is currently dominated by twisted nematic (TN) and super twisted nematic (STN), and its current applications are mainly in word processors and consumer products.