OLEDs are penetrating the vast smart phone and tablet markets, as well as the television market. Additional growth markets for OLEDs are lighting, flexible solutions and wearables. In this book, the author will cover both the fundamentals and practical applications of both flat and flexible OLEDs. Includes chpaters on: the performances of OLEDs; OLED materials - vacuum deposition type; OLED materials - solution type materials; OLED display; OLED lighting; OLED fabrication process; flexible OLED, and a look to future directions for OLED technologies.