| 摘要 |
A driving circuit for an organic light emitting diode comprises the following elements. A driving transistor has a control terminal, a first electrode and a second electrode, wherein the first electrode and the second electrode are connected to a power line and the organic light emitting diode. A first switch device can be turned on by a scan signal to electrically conduct the power line and the control terminal of the driving transistor for maintaining the control terminal at the voltage level of the scan signal. And a second switch device can be turned on by the scan signal to electrically conduct a data line and the second electrode of the driving transistor for transferring the data signal to the second electrode and maintaining the second electrode at the voltage level of the data signal. Thus, by maintaining the control terminal of the driving transistor and the second electrode at the certain levels the operation current of the driving transistor will not affected by the voltage difference between two electrodes of the organic light emitting diode.
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