Patent ID: 6975293

Claim:
An active matrix LED display driving circuit comprising: a first transistor of a first type having a drain, a source coupled to receive a data signal and a gate coupled to receive a scan signal; a second transistor of the first type having a drain, a source coupled to receive the data signal and a gate coupled to receive the scan signal; a third transistor of a second type having a source, a drain coupled to the drain of the second transistor and a gate coupled to the drain of the first transistor; a fourth transistor of the second type having a drain coupled to receive a first voltage, a gate coupled to receive the scan signal and a source coupled to the drain of the second transistor; a light emitting diode having an anode coupled to the source of the third transistor and a cathode coupled to receive a second voltage; and a capacitor coupled between the gate and source of the third transistor.