Pixel circuit, pixel circuit driving method, and display device thereof

A pixel circuit driving method, comprising:

• providing a pixel circuit, wherein the pixel circuit comprises:
• a driving circuit, configured to provide a driving current to a first node;
• a lighting element, comprising a first terminal and a second terminal, wherein the first terminal of the lighting element is coupled with a second node, and the second terminal of the lighting element is configured to receive a system low voltage;
• and
• a plurality of switching circuits, coupled between the first node and the second node in a parallel connection;
• providing at least one grayscale control signal to the plurality of switching circuits;
• correspondingly providing a plurality of emission control signals to the plurality of switching circuits;
• and
• during each frame, utilizing the plurality of emission control signals to provide a plurality of pulses, wherein the plurality of pulses do not mutually overlap in time sequence, so that the plurality of switching circuits selectively couple the first node to the second node according to the plurality of pulses and the at least one grayscale control signal.

A display device, comprising:

• a plurality of pixel circuits, arranged as n rows, wherein n is an integer larger than 1, and each of the plurality of pixel circuits comprises:
• a driving circuit, configured to provide a driving current to a first node;
• a lighting element, comprising a first terminal and a second terminal, wherein the first terminal of the lighting element is coupled with a second node, and the second terminal of the lighting element is configured to receive a system low voltage;
• and
• a plurality of switching circuits, coupled between the first node and the second node in a parallel connection, and configured to correspondingly receive a plurality of emission control signals and at least one grayscale control signal;
• and
• a control circuit, configured to provide the plurality of emission control signals and the at least one grayscale control signal,
• wherein during each frame, the plurality of emission control signals provide a plurality of pulses, and the plurality of pulses do not mutually overlapping in time sequence, so that the plurality of switching circuits selectively couple the first node to the second node according to the plurality of emission control signals and the at least one grayscale control signal.