Patent ID: 7332745

Claim:
A flat panel display device comprising: a light-emitting portion having a first electrode, a second electrode, and an organic light-emitting layer between the first and second electrodes; at least two thin film transistors for controlling the light-emitting layer portion; a scanning signal line for supplying a scanning signal to each of the at least two thin film transistors; a data signal line for supplying a data signal to one of the at least two thin film transistors; a light emitting region having a common power supply line for supplying current to the light-emitting portion; and a peripheral common power supply line connected to the common power supply line and having at least one non-flat portion on a non-light emitting region except the light emitting region, wherein the peripheral common power supply line has an auxiliary common power supply line therebelow to allow the common power supply line and the auxiliary common power supply line to directly contact each other.