| 摘要 |
PURPOSE: A pixel circuit, and a organic electro-luminescent display apparatus for the same are provided to remove an IR drop due to the parasitic resistance component of a wire regardless of the power source voltage of a cathode of a threshold voltage and an organic electro luminescence device. CONSTITUTION: In a pixel circuit, and a organic electro-luminescent display apparatus for the same, a light emitting device (OLED) comprises first and second electrodes. A driving transistor(T1) outputs a driving current which is changed according to voltage applied to the gate electrode. The second end of a first capacitor(C1) is connected to the gate electrode of the driving transistor. A second transistor(T2) transfers a data signal to the first end of the first capacitor. A third transistor(T3) diode-connects a driving transistor. A fourth transistor(T4) applies the first supply voltage to the first electrode of the driving transistor. A fifth transistor(T5) applies a sustain voltage to the first end of the first capacitor.
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