How exactly does the IPS TFT display image come about?

TFT display is short for Thin Film Transistor, which refers to a Thin Film liquid crystal display, but actually refers to a Thin Film Transistor (matrix) that can actively control individual pixels on the screen. This is the origin of the so-called active Matrix TFT (TFT).
So how does the image come about? The basic principle is simple: a TFT display is made up of pixels that EMIT light of any color. You can do this by manipulating each pixel to display the appropriate color. In TFT LCD, the backlight technology is generally used. In order to accurately control the color and brightness of each pixel, it is necessary to install a shutter-like switch after each pixel. When the "shutter" is opened, the light can pass through, but when the "shutter" is closed, the light cannot pass through. Of course, technically it's not as simple as that. LCD (Liquid Crystal Display) is to take advantage of the characteristics of Liquid Crystal (when heated to a Liquid state, when cooled to a solid state).