A photoelectric converter of one aspect of the present invention is provided with an element substrate having a photodiode and a thin film transistor arranged in matrix form, an interlayer insulating film laminated on the thin film transistor, a first contact hole formed in the interlayer insulating film and reaching a surface of a source electrode of the thin film transistor, and a second contact hole formed in the interlayer insulating film and reaching a surface of a drain electrode of the thin film transistor, in which a source bus line and the source electrode of the thin film transistor are connected via the first contact hole, the drain electrode of the thin film transistor and a lower layer electrode of the photodiode are connected via the second contact hole, and the tapered part of the second contact hole has a gentler inclination than the tapered part of the first contact hole.