Pixel circuit and driving method thereof, array substrate, and display device

An array substrate, comprising:

• a plurality of pixel units arranged in an array, wherein each of the plurality of pixel units comprises a pixel circuit, the pixel circuit comprises a driving circuit, an input circuit, a compensation circuit, a reset circuit, a data writing circuit, and a light-emitting element;
• the driving circuit comprises a control terminal, a first terminal and a second terminal, and is configured to control a driving current flowing through the first terminal and the second terminal for driving the light-emitting element to emit light;
• the input circuit is configured to transmit a reset voltage and a data signal in response to a first scan signal;
• the reset circuit is configured to apply the reset voltage transmitted by the input circuit to the control terminal of the driving circuit in response to a second scan signal;
• the compensation circuit is configured to store the data signal and to electrically connect the control terminal of the driving circuit with the second terminal of the driving circuit in response to a third scan signal;
• and
• the data writing circuit is configured to apply the data signal transmitted by the input circuit to the compensation circuit in response to the third scan signal.

A driving method of a pixel circuit, wherein the pixel circuit comprises a driving circuit, an input circuit, a compensation circuit, a reset circuit, a data writing circuit, and a light-emitting element, the driving circuit comprises a control terminal, a first terminal and a second terminal, and is configured to control a driving current flowing through the first terminal and the second terminal for driving the light-emitting element to emit light, the input circuit is configured to transmit a reset voltage and a data signal in response to a first scan signal, the reset circuit is configured to apply the reset voltage transmitted by the input circuit to the control terminal of the driving circuit in response to a second scan signal, the compensation circuit is configured to store the data signal and to electrically connect the control terminal of the driving circuit with the second terminal of the driving circuit in response to a third scan signal, the data writing circuit is configured to apply the data signal transmitted by the input circuit to the compensation circuit in response to the third scan signal;

• the driving method comprises a reset phase, a data writing and compensation phase, a maintaining phase, and a light-emitting phase;
• wherein
• in the reset phase, input the first scan signal and the second scan signal to turn on the input circuit and the reset circuit, so as to reset the control terminal of the driving circuit via the input circuit and the reset circuit;
• in the data writing and compensation phase, input the first scan signal and the third scan signal to turn on the input circuit, the data writing circuit, the driving circuit and the compensation circuit, so as to write the data signal into the compensation circuit via the input circuit and the data writing circuit, and to compensate the driving circuit via the compensation circuit;
• in the maintaining phase, input the third scan signal to turn on the driving circuit and the compensation circuit, so as to continuously compensate the driving circuit via the compensation circuit;
• and
• in the light-emitting phase, turn on the driving circuit, so as to drive the light-emitting element to emit light via the driving circuit.