A pixel circuit and driving method, an array substrate, a display panel, and a display device are provided. The pixel circuit includes a voltage clamping unit, an energy storage unit, and a reference voltage terminal. The voltage clamping unit connects to the reference voltage terminal and a first terminal of the energy storage unit. The voltage clamping unit forms a voltage divider circuit to supply a divided reference voltage from the reference voltage terminal to the first terminal of the energy storage unit or pulls and clamps the voltage at the first terminal of the energy storage unit to a reference voltage at the reference voltage terminal.