Patent ID: 6862338
Filing Date: 2005-03-01
Classification: A61B,H04N

Abstract:
1. An imaging device comprising: a plurality of signal lines; a plurality of scanning lines arranged to intersect with the signal lines; pixels each being provided to an intersection of a signal line and a scanning line, and including a photoelectric conversion film converting an x-ray to a charge, a switching element composed of a transistor, of which a gate is connected to a corresponding scanning line, a source is connected to the photoelectric conversion film, and a drain is connected to a corresponding signal line, and a accumulation element connected to the photoelectric conversion film and the switching element, and accumulating the charge produced in the photoelectric conversion element; a scanning line driving circuit driving the scanning lines; and a signal detection circuit connected to the signal lines and reading out the charge accumulated in the accumulation element, a potential of the photoelectric conversion film and a gate potential of the switching element being set such that an absolute value of a gate-source voltage of the switching element decreases when the charge is accumulated in the accumulation element, and the scanning line driving circuit outputting at least two kinds of scanning line voltages that turn off the switching element.