LCD is the full name of liquid crystal display Liquid Crystal Display, mainly TFT, UFB, TFD, STN and other types of liquid crystal display can not locate the program input point on the dynamic link library. The LCD screen is commonly used in TFT. TFT (Thin Film Transistor) refers to a thin film transistor. Each liquid crystal pixel is driven by a thin film transistor integrated behind the pixel, so that high-speed, high-brightness, high-contrast display screen information can be achieved. One of the LCD color display devices is the mainstream display device on laptops and desktops. Compared with STN, TFT has excellent color saturation, reducing power and higher contrast. It is still very clear under the sun, but the disadvantage is that it consumes more power and costs.