To easily and surely detect display defects of a liquid crystal device with, for example, operator's visual observation.
An inspection image (PB) is composed of inspection patterns (Pb1), (Pb2), and (Pb3) displayed simultaneously on pixel rows (g1-2), (g2-3), and (g3-4) respectively. Each data line corresponding to the pixel rows (g1-2), (g2-3), and (g3-4) respectively is electrically connected to pixel signal line different from each other. Thus, each of the inspection patterns (Pb1), (Pb2), and (Pb3) is electrically connected to an image signal line supplying mutually different image signal out of a plurality of image signals obtained by serial-to-parallel conversion of image signals. That is, the pitch of inspection patterns simultaneously displayed is different from the pitch of the data lines to which the same image signal is supplied when driving a liquid crystal device.
Osamu Suzawa
Kazuhiko Miyasaka