Active matrix substrate and x-ray imaging panel including same

Abstract

Provided is a technique of image pickup without being affected by leakage current on an active matrix substrate that includes photoelectric conversion elements. An active matrix substrateincludes photoelectric conversion elements that are respectively provided with respect to a plurality of pixels defined by gate lines and data lines, and a bias linesupplying a bias voltage to each photoelectric conversion element. Further, the active matrix substratefurther includes a plurality of data protection circuit unitsthat are connected with the data lines, respectively, and a first common linethat is connected with the data protection circuitsand has a potential equal to or lower than those of the data lines, outside the image pickup area composed of a plurality of pixels. The data protection circuit unitincludes a first data non-linear element, and the first data non-linear elementis connected in a reverse bias state between the first common lineand the data lines