STN is the abbreviation of "Super Teisted Nematic". It belongs to passive passive matrix LCD. This material is used in the LCD screens of almost all black-and-white mobile phones. The color STN LCD screen is to add a color filter on the basis of the monochromatic STN LCD screen, and divide each pixel in the monochromatic display matrix into three sub-pixels, and display red, green and blue colors through the color filter respectively, so as to realize the color picture. Due to technical limitations, the current STN LCD screen has up to 65536 colors, and most of the products seen on the market are 4096-color STN products, so STN is also known as "pseudo-color".
