Short for "Thin Film Transistor," TFT is usually referred to as a thin-film LCD display, but actually it is a Thin Film Transistor (matrix) that proactively controls individual pixels on a screen, This is the origin of the so-called Active matrix TFT (TFT). So how do images come about? The basic principle is simple: a display screen is made up of pixels that can emit light of any color, and you can control each pixel to display the corresponding color. The backlight technology is generally used in TFT LCD. In order to accurately control the color and brightness of each pixel, it is necessary to install a switch similar to the shutter behind each pixel. When the "shutter" is opened, the light can come through, but when the "shutter" is closed, the light cannot come through. Of course, technically it's not as simple as that. LCD (Liquid Crystal Display) is the use of the characteristics of Liquid Crystal (when heated, it becomes Liquid, when cooled, it crystallizes into solid), generally Liquid Crystal has three forms:
Clay-like stratified (Smectic) liquid crystals
Nematic liquid crystals resembling thin matchsticks
The cholesterol - like (Cholestic) liquid crystal
Liquid crystal displays use filaments, which change their molecular structure as the environment changes, and thus have different physical properties -- allowing light to pass through or blocking it -- like shutters. The three primary colors are known, so each pixel on a display screen is made up of three similar basic components that control red, green, and blue. The most common type used is Twisted Nematic TFT LCD.
