DISPLAY DEVICE DRIVING APPARATUS, DISPLAY DEVICE, AND METHOD FOR TESTING DRIVING APPARATUS OR DISPLAY DEVICE

摘要

There are included an analog signal output part (30) for outputting analog image signals to the respective ones of a plurality of image output terminals (1); a signal switch part (40) for sequentially selecting analog image signals from the analog signal output part (30); and a delta-sigma modulator (9) for delta-sigma modulating the analog image signals selected by the signal switch part (40) and for outputting a 1-bit digital modulated signal from a delta-sigma modulation output terminal (2). The delta-sigma modulator (9) converts the analog image signals outputted from the multiple image output terminals (1) to the 1-bit digital modulated signal, which can be extracted, as a test signal, from the delta-sigma modulation output terminal (2) to the exterior via a single wire.