The development of Micro LED display technology has further materialized in 2019 in the form of more solid applications presented in big trade shows. Micro LED products demonstrations marked the intensified collaboration between industry players in the supply chain across the world. Researchers, chip makers, panel producers, equipment providers and application device developers have intensified their cooperation to accelerate Micro LED technology progress.

Micro LED is an enticing display technology considerably future-proof yet hard to fully realize. All already-known challenges are basically induced by three key factors: the size, material, and number of LED chips. The industry refers to a LED chip as a Micro LED chip when its size is below 100μm—almost as tiny as the diameter of human hair. Different colors of Micro LEDs are made with different materials. Some companies attempt to develop a solution for chips of all colors, while the others invent several approaches to transfer, bond, and drive Micro LEDs produced with different compounds. What about the Number of Micro LEDs used for a display, let’s say, a TV, for example? It’s going to be single- to double-digit millions of them.