DISPLAY DEVICE DRIVE DEVICE, DISPLAY DEVICE, AND DRIVE DEVICE OR DISPLAY DEVICE CHECK METHOD

摘要

A display device drive device includes a signal processing section (20) for correcting an input digital image signal and outputting a digital corrected signal, an analog signal output section (30) for outputting an analog image signal to a plurality of image output terminals (1), a signal switching selection (40) for successively selecting an analog image signal from the analog signal output section (30), and a delta/sigma modulator (9) for delta/sigma-modulating the analog image signal selected by the signal switching section (40) and feedback-inputs the created 1-bit digital modulated signal to the signal processing section (20). The signal processing section (20) successively outputs initial output data V init0 to V initm to the analog signal output section (30), receives a modulated signal for the initial output data V init0 to V initm from the delta/sigma modulator (9) so as to calculate correction data. Thus, even if irregularities are caused in the non-linear electric characteristic between output terminals in the display drive LSI of ultra-multi-pin output, it is possible to sufficiently correct them with a high accuracy.