| 摘要 |
A pixel circuit, a driving method therefor, and a display device. The pixel circuit comprises: a first switch unit (T1), a second switch unit (T2), a third switch unit (T3), a fourth switch unit (T4), a fifth switch unit (T5), a driver unit (DT), an accumulator unit (C), and an electroluminescent unit (L). The first switch unit (T1) is used for providing the driver unit (DT) with a working voltage under the control of a first scan signal line (Em). The second switch unit (T2) is used for zeroing a voltage of a control end of the driver unit (DT) under the control of a second scan line (Scan[2]). The third switch unit (T3) is used for writing into a first end (a) of the accumulator unit (C) a data voltage in a data voltage line (Vdata) under the control of a third scan signal line (Scan[3]). The fourth switch unit (T4) is used for connecting a control end of the driver unit (DT) to an output end thereof under the control of the third scan signal line (Scan[3]) and allowing an output end voltage of the driver unit (DT) to charge a second end (b) of the accumulator (C). The fifth switch unit (T5) is used for conducting a driving current generated by the driver unit (DT) to the electroluminescent unit (L) under the control of a fourth scan signal line (Scan[1]). The pixel circuit is capable of solving the problem of uneven display brightness caused by shifts in a threshold voltage of a drive transistor. |
