Pixel circuit of active matrix organic light emitting diode

A pixel circuit of an active matrix organic light emitting diode (AMOLED) device, comprising:

• a scan line;
• a data line to provide a data signal to the pixel circuit;
• a first switching thin film transistor, a gate electrode of the first switching thin film transistor connected to the scan line, and a source electrode of the first switching thin film transistor connected to the data line;
• a second switching thin film transistor, a gate electrode of the second switching thin film transistor connected to the scan line, and a source electrode of the second switching thin film transistor connected to the data line;
• a capacitor connected between a drain electrode of the first switching thin film transistor and ground;
• an organic light emitting diode;
• a driving thin film transistor connected between a drain electrode of the second switching thin film transistor and the organic light emitting diode, and a power voltage signal applied to the organic light emitting diode via the driving thin film transistor, to generate a driving current;
• and
• a control circuit connected to the data line, the control circuit to detect a voltage value of the driving current via the data line, and to regulate a voltage value of the data signal according to the voltage value of the driving current.