Pixel circuit, pixel driving method and display device

A display device, comprising:

• a pixel circuit,
• wherein the pixel circuit comprises a light-emitting element, a pixel driving circuit, an on-off control circuit and a light-emission time control circuit;
• wherein the pixel driving circuit is electrically coupled to a first gate line, a display data line, a light-emission control line, a first voltage terminal and the on-off control circuit, and configured to apply a driving current through a driving current output terminal in accordance with a display data voltage from the display data line under control of a first gate driving signal from the first gate line and a light-emission control signal from the light-emission control line;
• a control terminal of the on-off control circuit is electrically coupled to the light-emission time control circuit, a first terminal of the on-off control circuit is electrically coupled to the driving current output terminal, a second terminal of the on-off control circuit is electrically coupled to the light-emitting element, and the on-off control circuit is configured to control the driving current output terminal to be coupled to, or decoupled from, the light-emitting element under control of a potential at the control terminal of the on-off control circuit;
• and
• the light-emission time control circuit is electrically coupled to a second gate line, light-emission control data lines, N light-emission time control signal output terminals and the control terminal of the on-off control circuit, and configured to control an nth light-emission time control signal output terminal to be coupled to, or decoupled from, the control terminal of the on-off control circuit in accordance with an nth light-emission control data voltage from an nth light-emission control data line under control of a second gate driving signal from the second gate line;
• wherein the nth light-emission time control signal output terminal is configured to apply an nth light-emission time control signal, N is an integer larger than 1, and n is a positive integer smaller than or equal to N.