Thin film transistor substrate having a thin film transistor having multiple top gates and organic light emitting device using the same

摘要

A thin film transistor substrate provided with two gate electrodes comprises a thin film transistor including a first gate electrode formed on the substrate; an active layer formed on the first gate electrode; first and second electrodes formed on the active layer; and a second gate electrode formed on the first electrode, the second electrode, and the active layer, wherein the second gate electrode is provided with an opening formed in an area corresponding to at least a part of the second electrode.