understand the difference between LCD, OLED, and Micro-LED Screen
During SID Displayweek 2018, Coherent, the world's largest supplier of lasers, presented a table summarizing the performance differences between LCD, OLED, and Micro-LED displays.
Differences between LCDs, OLEDs and Micro-LED 
Compared with LCD and OLED, Micro-LED has many advantages, including higher efficiency and brightness. The main challenge for Micro-LED is the high cost of the current manufacturing process, but many believe that Micro-LED displays will be commercially successful in televisions, virtual reality, microdisplays and wearable devices.