Patent attributes
A flat panel display lowering an on-current of a driving thin film transistor (TFT), maintaining high switching properties of a switching TFT, maintaining uniform brightness using the driving TFT, and maintaining a life span of a light emitting device while the same voltages are applied to the switching TFT and the driving TFT without changing a size of an active layer. The flat panel display has a light emitting device, a switching thin film transistor including a semiconductor active layer having at least a channel area for transferring a data signal to the light emitting device, and a driving thin film transistor including a semiconductor active layer having at least a channel area for driving the light emitting device so that a predetermined current flows through the light emitting device according to the data signal, the channel areas of the switching TFT and the driving TFT having different directions of current flow.
