Local dimming: LEDs are arranged in an array and grouped into a certain number of areas. Local dimming technology is used to control each small LED block separately, and the backlight is fine tuned in multiple areas to enhance the display effect. It can provide higher brightness, higher contrast, more accurate color reproduction, and deeper black performance, effectively improving the problems of traditional LCD displays such as blackening in dark scenes, whitening in bright scenes, and overexposure in local areas.