On October 17, Korean media reported that the Korea Photonics Technology Institute (KOPTI) announced the successful development of highly efficient and fine Micro LEDs. The internal quantum efficiency of Micro LEDs can be maintained within 90% and is not affected by chip size and different injections. Effect of current density. This Micro LED was jointly developed by the team of Dr. Jong hyup Baek of the Optical Semiconductor Display Research Department, the ZOGAN Semi team led by Dr. Woong ryeol Ryu, and Professor Jong in Shim of the Depa...