Patent ID: 8866705

Claim:
A voltage compensation type pixel circuit of an organic light emitting diode for driving a light emitting element, comprising: a driving transistor serially connected to the light emitting element between a high-potential power line and a low-potential power line to drive the light emitting element in response to a voltage supplied to a first node; a program transistor that supplies a data voltage of a data line to a second node in response to a scan signal of a scan line; a merge transistor that connects the first node and the second node in response to a merge signal of a merge line; a storage capacitor connected between a third node and the second node to store a voltage which corresponds to the data voltage in which the threshold voltage is compensated, wherein the third and second nodes are interposed between the driving transistor and the light emitting element; first and second reset transistors that initialize at least two of the first, second, and third nodes to an initialization voltage of an initialization voltage line in response to a reset signal of a reset line; and a capacitor connected between the scan line and the first node to supply a reference voltage to the first node according to variation of the scan signal.