LCD display is an active matrix LCD display driven by thin film transistors, which mainly stimulates liquid crystal molecules to produce dots, lines, and surfaces with the back light tube to form a picture. IPS, TFT, and SLCD are all subclasses of LCD. [1] The working principle is to use the arrangement direction of liquid crystal molecules to change (modulate) the transmittance of the external light source under the action of an electric field, completing the electro-optical transformation. Then, using different excitations of R, G, and B primary color signals, the color reproduction in the time and space domains is completed through the red, green, and blue primary color filter film.






