Patent ID: 7965817
Filing Date: 2011-06-21
Classification: A61B,H01L,H04N

Abstract:
1. A radiation imaging apparatus comprising: a conversion unit having a plurality of pixels arranged in a matrix, each of the plurality of pixels including a conversion element, a first transistor, and a second transistor, wherein one of source and drain electrodes of the first transistor is connected to a first electrode of the conversion element and one of source and drain electrodes of the second transistor is connected to the first electrode of the conversion element; a plurality of first gate lines arranged in column direction, wherein each of the plurality of first gate lines is connected to gate electrodes of the first transistors included in pixels arranged in row direction; a plurality of second gate lines arranged in column direction, wherein each of the plurality of second gate lines is connected to gate electrodes of the second transistors included in pixels arranged in row direction; a plurality of signal lines arranged in row direction, wherein each of the plurality of signal lines is connected to the other of the source and drain electrodes of the first transistors included in pixels arranged in column direction; a first power source connected to second electrodes of the conversion elements included in the plurality of pixels to supply a first electric potential; a second power source connected to the other of the source and drain electrodes of the second transistors included in the plurality of pixels to supply a second electric potential; a read circuit unit connected to the plurality of signal lines and able to supply a third electric potential; a first driving circuit unit connected to the plurality of first gate lines to drive the first transistors; a second driving circuit unit connected to the plurality of second gate lines to drive the second transistors; and a control unit configured to control the first and second driving circuit units independently at different timing, wherein the control unit is further configured to control the first and second driving circuit units to perform for a pixel in the plurality of pixels: