Patent ID: 8654158

Claim:
A pixel circuit, comprising: a first transistor, having a gate receiving a first scan signal, and a first drain/source receiving a data signal; a second transistor, having a gate receiving a second scan signal, and a first drain/source receiving a reference signal; a first capacitor, having a first terminal electrically connected to a second drain/source of the first transistor, and a second terminal electrically connected to a second drain/source of the second transistor; a third transistor, having a gate electrically connected to the second drain/source of the first transistor, a first drain/source electrically connected to a first voltage, and a second drain/source electrically connected to the second drain/source of the second transistor; a second capacitor, having a first terminal electrically connected to the first drain/source of the third transistor, and a second terminal electrically connected to the second drain/source of the third transistor, wherein the second capacitor is only connected to both the first drain/source and the second drain/source of the third transistor; and a lighting device, having a first terminal electrically connected to the second drain/source of the third transistor, and a second terminal electrically connected to a second voltage, wherein the third transistor is configured to drive the lighting device in response to a cross voltage of the first capacitor.