Patent ID: 7999772

Claim:
A pixel structure, comprising: a light-emitting device, having a first electrode and a second electrode; a first scan line for transferring a first signal; a data line for transferring a data current signal; a first transistor having a gate coupled to the first scan line; and a current mirror electrically connected to the light-emitting device, the current mirror comprising: a second transistor having a gate connected to the data line and one of the source and the drain of the first transistor, and one of a source and a drain coupled to a first voltage source; and a third transistor having a gate coupled to the other of the source and the drain of the first transistor, one of a source and a drain coupled the first voltage source; wherein the first electrode of the light-emitting device is coupled to a second voltage source and the second electrode of the light-emitting device is coupled to the other of the source and the drain of the third transistor, a voltage level provided by the second voltage source is substantially greater than a voltage level provided by the first voltage source, and the light-emitting device emits the light according to the first voltage source and the second voltage source.