| 摘要 |
A pixel circuit and a drive method therefor, and a display device. The pixel circuit comprises a first transistor (T1), a second transistor (T2), a third transistor (T3), a storage capacitor (C1) and a light-emitting device (L), wherein a gate electrode of the first transistor (T1) is connected to a first control signal end (S1), and a first electrode thereof is connected to a data signal end (DATA); a gate electrode of the second transistor (T2) is connected to a second electrode of the first transistor (T1), a first electrode thereof is connected to a second electrode of the third transistor (T3), and a second electrode thereof is connected to a first end of the light-emitting device (L); a gate electrode of the third transistor (T3) is connected to a second control signal end (S2), and a first electrode thereof is connected to a first power source signal end (ELVDD); one end of the storage capacitor (C1) is connected to the gate electrode of the second transistor (T2), and the other end thereof is connected to the second electrode of the second transistor (T2); one end of a parasitic capacitor (C2) formed by the light-emitting device (L) is connected to a first end of the light-emitting device (L), and the other end thereof is connected to a second end of the light-emitting device (L); and the second end of the light-emitting device (L) is also connected to a second power source signal end (ELVSS). The pixel circuit can effectively compensate the threshold voltage drift of a TFT, thereby improving the display effect. |
