Patent ID: 7580015

Claim:
A pixel circuit of an active-matrix organic light-emitting diode comprising: a first switching transistor comprising a first electrode coupled to a data line, a second electrode coupled to a first scan line, and a third electrode; a second switching transistor comprising a first electrode coupled to the data line, a second electrode coupled to a second scan line, and a third electrode; a third switching transistor comprising a first electrode coupled to the third electrode of the second switching transistor, a second electrode coupled to the first scan line, and a third electrode; a driving transistor comprising a first electrode coupled to a first voltage, a second electrode coupled to the third electrode of the first switching transistor, and a third electrode coupled to third electrode of the third switching transistor; a first capacitor comprising one end coupled to the first electrode of the driving transistor and the third electrode of the second switching transistor, and the other end coupled to the first electrode of the third switching transistor; a second capacitor comprising one end coupled to the third electrode of the first switching transistor and the second electrode of the driving transistor, and the other end coupled to the third electrode of the second switching transistor and the first electrode of the third switching transistor; and a fourth switching transistor comprising a first electrode coupled to the third electrode of the third switching transistor and the third electrode of the driving transistor, a second electrode coupled to the first scan line, and a third electrode coupled to an organic light-emitting diode.