| 摘要 |
A pixel circuit, a driving method therefor, and a display device thereof. The pixel circuit comprises: a drive transistor (DT), a capacitor (C) connected between a source electrode and a grid electrode of the drive transistor (DT), a light emitting device (D1), a light-emitting control module (1), a data writing module (2), and a compensation module (3). By coordinated work of all modules, the drift of a threshold voltage of a drive transistor (DT) can be compensated. Therefore, during light emitting display, drive current, for driving a light emitting device (D1) to emit light, of the drive transistor (DT) is only relevant to voltage of a data signal (Data) and reference voltage (Vref), but is irrelevant to the threshold voltage of the drive transistor (DT) and a first reference voltage source (VDD), thereby avoiding the influence of the threshold voltage and IR Drop on current of the light emitting device (D1), enabling working current for driving the light emitting device (D1) to emit light to be kept consistent, and improving the uniformity of image brightness in a display area of a display device. |
