Pixel circuit, display panel and display apparatus

Abstract

A pixel circuit, a display panel and a display apparatus are configured to raise the uniformity of a display brightness within a display area of the display panel. The pixel circuit comprises a driving sub-circuit (2), whose first terminal (A) is connected with a first reference voltage source (Vref1) via a power supply lead, and second terminal (B) is connected with a first terminal of a light emitting device (D1); a charging sub-circuit (1), whose an output terminal is connected with a third terminal (C) of the driving sub-circuit (2), which is configured to charge the driving sub-circuit (2) before the driving sub-circuit (2) drives the light emitting device (D1) to emit light; and a compensation sub-circuit, whose first terminal is connected with a second terminal of the light emitting device (D1), second terminal is connected with a second reference voltage source (Vref2), which is configured to compensate for a voltage drop on the power supply lead of a voltage which is provided to the driving sub-circuit from the first reference voltage source (Vref1), so that a driving current for driving the light emitting device (D1) to emit light is irrelative with an attenuation amount.

Dependencies are inferred from the claim text.