Patent ID: 8323724

Claim:
A liquid discharging method comprising: preparing a substrate having a plurality of film formation regions; allowing a plurality of nozzles to face the substrate, the nozzles forming at least one nozzle line including a plurality of nozzle groups; moving the substrate and the nozzles relatively with respect to each other in a first direction to perform first and second scanning operations; generating a plurality of driving signals respectively by a plurality of D/A converters with a number of the driving signals corresponding to a number of the nozzle groups, the driving signals being different from each other and including at least a first driving signal and a second driving signal generated respectively by a first D/A converter and a second D/A converter; discharging a liquid as a droplet from at least one of the nozzles of one of the nozzle groups onto one of the film formation regions during the first scanning operation by applying the first driving signal to a driving unit of the at least one of the nozzles; and discharging the liquid as a droplet from the at least one of the nozzles onto the one of the film formation regions during the second scanning operation by applying the second driving signal to the driving unit of the at least one of the nozzles thereby changing discharge amounts of the droplets from the at least one of the nozzles between the first scanning operation and the second scanning operation.