Digital-Analog-Wandler und den selben verwendendes elektronisches Gerät

摘要

An active matrix display device comprising a source signal line drive circuit (501) comprising a shift resister circuit (501-1), a latch circuit (501-2), and a D/A converter circuit (501-5) for converting "n" bit digital data ("n": natural number) to analog signals, a gate signal line drive circuit (503), an active matrix circuit (504) comprising a plurality of first thin film transistors wherein respective bits of said "n" bit digital data control a switch and control charge and discharge of electric charges in a capacitance connected to said switch and analog signals are outputted with an offset voltage used as a reference potential wherein said D/A converter circuit comprises a plurality of second thin film transistors which are formed over a same substrate as said plurality of second thin film transistors.