Topic: outdoor display

At present, most OLEDs use chemical complexes of the rare metal iridium (Iridium) as light-emitting materials, accounting for more than 90% of the market, and related patents are mainly monopolized by the United States and European countries, causing manufacturers to pay high patent fees. Coordinated by the University of Hong Kong and combined with the interdisciplinary teams of 5 local universities, breakthroughs have been made in the past 5 years, including the use of gold and platinum comp...