Main Categories Of LCD Screens

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). Among them, the passive matrix type can be divided into twisted nematic type (Twisted Nematic; TN), super twisted nematic type (Super Twisted Nematic; STN) and other passive matrix drive liquid crystal displays; and the active matrix type can be roughly divided into thin film transistor type (Thin Film Transistor; TFT) and two-terminal diode type (Metal/Insulator/Metal; MIM) two types.
TN, STN and TFT liquid crystal displays have different viewing angles, colors, contrast and animation display quality because they use different principles of liquid crystal molecule twisting, which also makes them clearly divided in the application scope of the product. In terms of the scope and level of current liquid crystal display technology, active matrix drive technology is dominated by thin film transistor type (TFT), which is mostly used in notebook computers and animation and image processing products. The pure matrix drive technology is currently mainly twisted nematic (TN) and super twisted nematic (STN), and its current applications are mainly word processors and consumer products. Among them, TFT liquid crystal displays require higher capital investment and technical requirements, while TN and STN require relatively lower technology and capital requirements.