Organic Light-Emitting Device (OLED) has been attracted much interests to realize a flat panel display owing to its
promising characteristics. Active matrix OLED can make it possible to make big displays with the good image qualities
and create new values and concepts, such as a flexible display, transparent display, and so on. However, in spite of the
big potential of the AMOLED, it is still needed to improve lifetime, efficiency and productivity for large size displays.
In this paper, we present current development status and issues of the AMOLED toward an ultimate champion among
flat panel displays.