US Patent 11763733 Display device, sub-pixel repair circuit and repair method therefor

A display device, a sub-pixel repair circuit and a repair method therefor. The sub-pixel repair circuit comprises a drive circuit module, a detection circuit module, a repair circuit module, a light-emitting device, and a standby light-emitting device; the drive circuit module is used for providing a drive current to the light-emitting device in response to a data signal of a data line and a scan signal of a scan line; the repair circuit module provides a drive current to the standby light-emitting device in response to a data signal provided by the drive circuit module and a short circuit signal or an open circuit signal provided by the detection circuit module. Thus, fault repair of the light-emitting device is implemented, and the display quality of a display device is improved.