Patent ID: 8822939

Claim:
A matrix substrate for a detection device comprising: a plurality of pixels arranged in a matrix, wherein each of the plurality of pixels includes a conversion element for converting radial rays or light beams into charges and a thin-film transistor for outputting electric signals corresponding to charges generated by the conversion elements, the conversion element has a first electrode, a second electrode, and a semiconductor layer arranged between the first electrode and the second electrode, the thin-film transistor has a gate electrode, a source electrode, and a drain electrode, and one of the source electrode and the drain electrode is connected to the first electrode; a plurality of driving lines which are arranged in the column direction and each of which is connected to the gate electrode and connected to a number of the pixels in a row direction in common; a plurality of connection terminals configured to connect a driving circuit which drives the pixels and the driving lines with each other and the number of which is smaller than the number of driving lines; and a demultiplexer configured to include a plurality of first polycrystalline semiconductor thin-film transistors and a first control line, wherein the plurality of first polycrystalline semiconductor thin-film transistors is arranged between the connection terminals and the driving lines and corresponds to the driving lines in a one-to-one manner, each of the first polycrystalline semiconductor thin-film transistors is configured to supply a first voltages which brings the respective connected pixels into a respective selection states to the driving lines, and wherein the first control line is configured to supply a first control signal which has a conductive voltage of the first polycrystalline semiconductor thin-film transistors and a nonconductive voltage of the first polycrystalline semiconductor thin-film transistors to control electrodes of the first polycrystalline semiconductor thin-film transistors, wherein the demultiplexer further includes a plurality of second polycrystalline semiconductor thin-film transistors and a second control line, wherein the plurality of second polycrystalline semiconductor thin-film transistors is arranged between the connection terminals and the driving lines and corresponds to the driving lines in a one-to-one manner, and each of the second polycrystalline semiconductor thin-film transistors is configured to maintain the driving lines to have a second voltage which brings the respective connected pixels to be a respective non-selection state and wherein the second control line is configured to supply a second control signal which has a conductive voltage and a nonconductive voltage of the second polycrystalline semiconductor thin-film transistors to control electrodes of the second polycrystalline semiconductor thin-film transistors.