PIXEL AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

摘要

PURPOSE: Pixels and an organic light emitting device using the same are provided to compensate the threshold voltage of a driving transistor by forming a pixel circuit with a small quantity of transistors. CONSTITUTION: An organic light emitting diode(OLED) is connected between first power source(ELVDD) and second power source(ELVSS). A first transistor(M1) controls a driving current. The driving current flows from the first power source to the second power source through the organic light emitting diode. The first node(N1) of a second transistor(M2) is charged with a first voltage. A first capacitor(C1) is connected between the first node and a second node(N2). A third transistor(M3) supplies a data signal to the second node. A fourth transistor(M4) connects the first node and the second node. A fifth transistor(M5) controls the connection between the first transistor and the second power source in response with a light emitting control signal. The second capacitor(C2) is connected between the second node and a third node(N3).