[Object] To realize a drive circuit where settling time (stabilization time) is shortened, without incurring marked increase in electric current consumed and marked increase in manufacturing costs.
[Solution] A source drive circuit (1) has a digital gradient input converter (2) that converts gradient values of multiple image data (D1 through Dn) that are gradient 1 into multiple gradient values, where the number of the multiple source amps (AM1 through AMn) to which a gradient reference voltage (V1) corresponding to gradient 1 is supplied, is reduced, and supplied to a DAC circuit (23).