LEDs are small light sources in TVs that illuminates pixels to make an image. Mini-LEDs are much smaller than ordinary LEDs and create a brighter picture with more saturation and richer black levels. Because Mini-LEDs are so much smaller than normal LEDs they are difficult to manufacture and place precisely into screens, which means they are much more expensive than traditional LED displays. Advertisement iPad Pro According to Bloomberg, Apple plans to showcase two new iPad Pro models – one larger model measuring 12.9 inches and featuring new mini-LED display technology. Mini-LEDs are like ordinary LEDs, but much smaller, which makes it possible to pack thousands more of them into a display.