| 摘要 |
An OLED(Organic Light Emitting Display) device is provided to improve the lifetime reduction of a display unit by preventing overcurrent flowing in the display unit. An OLED device includes a display unit(P), first and second source voltage supply units, and a feedback circuit(FB). The display unit includes plural sub-pixels at areas, which are defined by crossing signal lines having a first source voltage, a second source voltage, scan, and data lines. The first and second source voltage supply units supply a source voltage, which is required for driving the display unit, through the first and second source voltage lines. The feedback circuit, between the display unit and the first or second source supply unit, includes a transistor, an operational amplifier, and a resistor.
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