| abstract |
A pixel circuit includes an electroluminescence EL device, a transistor, a first capacitor and a second capacitor. The transistor is coupled between a supply voltage and the EL device and includes a gate coupled to a first node and an end coupled to a second node. The first capacitor is coupled between the first node and the second node, and is used for resetting the gate of the transistor to the supply voltage in response to a first control signal. The second capacitor includes a first end coupled to the second node, and a second end for receiving a second control signal, which is used for responding to the second control signal to establish An offset voltage related to the threshold voltage of the transistor. The above-mentioned transistor is used to pass a current through the EL device. The magnitude of the current is independent of the threshold voltage of the transistor. |