| 摘要 |
An organic light emitting diode display device. A first capacitor is coupled between a gate of a first transistor and a first voltage source, and a second transistor is coupled between the gate of the first transistor and a second voltage source. A third transistor is coupled between the first voltage source and the gate of the first transistor, and a fourth transistor is coupled to a data line. A second capacitor stores the data voltage from the fourth transistor, and is for determining a gate-source voltage of the first transistor. The threshold voltage compensator compensates a threshold voltage of the third transistor together with the second capacitor, and the fifth transistor transmits a current of a drain of the first transistor to the organic light emitting diode. A photoelectric transformation element transmits a current corresponding to a light emitted by the organic light emitting diode to the second capacitor.
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