There are many types of LIQUID crystal displays

LCD can be divided into static drive (static), simple matrix drive (simple matrix) and active matrix drive (active matrix). Passive matrix types can be divided into twisted nematic type (twisted nematic type; TN), supertorsional nematic vector (supertorsional nematic vector; STN) passive matrix driven LCD; Active matrix types can be roughly divided into two methods: thin film transistor (TFT) and dual diode (metal/insulator/metal; The MIM).

TN, STN and TFT LCDS have different viewing Angle, color, contrast, animation display quality and other levels due to the different principle of torsional liquid crystal molecules, which makes them have obvious differences in the application range of products. As far as the application scope and level of liquid crystal display technology is concerned, active matrix drive technology takes thin film transistor type (TFT) as the mainstream, which is mostly used in notebook computer and animation and image processing products. Pure matrix-driven technology is currently based on twisted nematic vectors (TN) and hypertwisted nematic vectors (STN), which are mainly used in word processors and consumer products. Among them, TFT LCD has higher requirements on capital investment and technology, while TN and STN have lower requirements on technology and capital.