The present invention provides a pixel charging method, including: a preset charging duration and a current time point are acquired when a first gate integrated circuit is turned on; a precharging period and an actual charging period of a scan line of each target integrated circuit of the thin film transistor substrate are determined based on the preset charging duration and the current time point; thin film transistor switches corresponding to the scan line of each of the target gate integrated circuits are controlled to be turned on during the precharging period and the actual charging period of the scan line.