Local Dimming

Local dimming is a backlight control technique in LCD displays with LED illumination, where brightness is dynamically adjusted in different screen zones. This allows dark image areas to be dimmed without affecting bright regions, significantly improving contrast and black levels. Local dimming is implemented through the LED driver and requires a backlight system divided into multiple independently controlled zones (from a few to hundreds). It is widely used in TVs, professional monitors, and industrial displays where high image quality, energy efficiency, and accurate visual reproduction are important.