Display substrate and driving method thereof, and display apparatus

A display substrate, comprising:

• a plurality of data lines extending in a first direction;
• and
• a plurality of sub-pixels, a sub-pixel including a pixel driving circuit and a light-emitting device;
• wherein the pixel driving circuit includes:
• a current control circuit, and a duration control circuit electrically connected to the current control circuit and the light-emitting device;
• the current control circuit is configured to generate a driving signal to drive the light-emitting device to emit light;
• and the duration control circuit is configured to generate a duration control signal to control a duration of a connection between the current control circuit and the light-emitting device, wherein
• the current control circuit is at least electrically connected to a scanning signal terminal, a data signal terminal, a first enabling signal terminal, a first voltage signal terminal and a first node;
• the current control circuit is configured to generate the driving signal in response to a scanning signal received at the scanning signal terminal, a data signal received at the data signal terminal, a first enabling signal received at the first enabling signal terminal, and a first voltage signal received at the first voltage signal terminal;
• and
• the duration control circuit is at least electrically connected to the data signal terminal, a first reset signal terminal, a second reset signal terminal, the first enabling signal terminal, a second enabling signal terminal, the first node and the light-emitting device;
• the duration control circuit is configured to, in response to the data signal and a first reset signal received at the first reset signal terminal, control a duration of a connection between the first node and the light-emitting device according to a second enabling signal received at the second enabling signal terminal;
• or in response to the data signal and the second reset signal received at the second reset signal terminal, to control a duration of a connection between the first node and the light-emitting device according to the first enabling signal.