The liquid crystal display is an active matrix liquid crystal display driven by thin film transistors (TFT). It mainly uses current to stimulate liquid crystal molecules to generate dots, lines, and surfaces to form a picture with the back light tube. IPS, TFT, and SLCD are all sub-categories of LCD.
The working principle of the liquid crystal display is: under the action of an electric field, the arrangement direction of the liquid crystal molecules is changed to change the light transmittance of the external light source (modulation), complete the electrical-optical conversion, and then use the three primary color signals of R, G, and B. Different excitations, through the red, green, and blue primary color filter film, complete the color reproduction in the time domain and the space domain.