Pixel circuit and display apparatus

Abstract

A pixel circuit, comprises two sub-pixel circuits (P, P) and a sixth switch unit (T); a first terminal of the sixth switch unit (T) is connected to an operating voltage line (Vdd), and a control terminal of the sixth switch unit is connected to a first scan signal line (Em); each of the sub-pixel circuits (P, P) comprises five switch units (T, T, T, T, T), a driving unit (DT), a energy storage unit (C) and an electroluminescent unit (L), a first switch unit (T) and a fourth switch unit (T) in a first sub-pixel circuit (P) share a scan signal line (Scan[]) with a first switch unit (T') and a fourth switch unit (T′) in a second sub-pixel circuit (P), and a third switch unit (T) in the first sub-pixel circuit (P) share a scan signal line (Scan[]) with a third switch unit (T′) in the second sub-pixel circuit (P). The pixel circuit completely solves the problem of non-uniformity in the display brightness due to drifting of the threshold voltage of the driving transistor. Meanwhile, one compensation circuit is used to drive two pixels, and two adjacent pixels share multiple signal lines, which can reduce the number of signal lines for the pixel circuit in a display apparatus, lower the cost of the integration circuit, decrease the pixel pitch, and increase the pixel density.