Patent ID: 8242980

Claim:
A pixel circuit, comprising: first, second, and third transistors, a first capacitor having a first electrode and a second electrode, and a second capacitor having a first electrode and a second electrode, wherein: the first transistor is controlled by a scan line and is configured to controllably couple a data line to the first electrode of the first capacitor, the first electrode of the second capacitor, and a gate electrode of the second transistor, the second transistor is controlled by a voltage provided by the first and second capacitors, the second transistor having a first electrode coupled to a first power supply and being configured to controllably couple the first power supply to the second electrode of the second capacitor and to a light source, the third transistor is controlled by the scan line, the third transistor having a first electrode coupled to the first power supply and being configured to controllably couple the first power supply to the second electrode of the second capacitor and to the light source, the first power supply is controllably coupled to the light source by the second transistor and by the third transistor, the second and third transistors being arranged in parallel between the first power supply and the light source, a first electrode of the light source being coupled to a second electrode of the second transistor and a second electrode of the third transistor, a second electrode of the light source is coupled to a second power supply, and the first capacitor is coupled between the first transistor and the first power supply, and is configured to be charged with a voltage corresponding to a data signal when the first transistor is turned on, a voltage provided by the first power supply being higher than a voltage provided by the second power supply during charging of the first capacitor with the voltage corresponding to the data signal.