DISPLAY DEVICE AND DISPLAY DEVICE DRIVE METHOD

摘要

A display drive device (100A) includes: a gradation voltage generation unit (110) for generating gradation voltage Vdata corresponding to display data; a static current circuit unit (140) for supplying a predetermined constant current Iref to a display pixel PX; a voltage detection unit (160) for detecting voltage of a data line DL when the constant current Iref is supplied, as a detection voltage Vdec; and a voltage addition unit (130) for adding/subtracting the gradation voltage Vdata, a reference voltage Vref corresponding to the detection voltage Vdec, and a unique voltage Vref0 decided according to the design parameter of a drive transistor provided in a display pixel PX (drive circuit DC) so as to generate a pixel data voltage Vpix (= Vref - Vref0 + Vdata) and supplying it as a gradation signal to the data line DL.