Professor Junji KIDO and Associate Professor Hisahiro SASABE of Yamagata University developed high performance and long life organic LED without using rare metal. A green organic LED, which has one and a half times luminous efficiency and 4 times longer lifetime, achieved similar performances of practical products with rare metal. This technology and science will be installed into blue organic LED within a few years leading to future energy-saving and low-cost organic LED display.
Nikkei January, 15, 2018 Monday