X-ray detector

An X-ray detector, comprising:

• a substrate;
• a gate line that is extended in a first direction on the substrate;
• a gate electrode that is extended from the gate line;
• a semiconductor layer that is positioned on the gate electrode;
• a source electrode and a drain electrode that are positioned on the semiconductor layer;
• a lower electrode that is extended from the drain electrode;
• a photodiode that is positioned on the lower electrode;
• a first insulation layer that is positioned on the source electrode and the drain electrode and that comprises a first opening that exposes the source electrode, the first insulation layer comprising a second opening that exposes the lower electrode, and the photodiode electrically connected to the lower electrode through the second opening;
• a data line that is extended in a second direction intersecting the first direction on the first insulation layer to intersect the gate line with the first insulation layer interposed between the data line and the gate line, and the data line being electrically connected to the source electrode through the first opening;
• a connection that is positioned between the data line and the source electrode to correspond to the first opening and that electrically connects the data line and the source electrode;
• a first diode electrode that is positioned between the lower electrode and the photodiode to correspond to the second opening and that electrically connects the lower electrode and the photodiode;
• and
• a second diode electrode that is positioned on the photodiode,
• with the first diode electrode being formed from a same layer as the connection and being formed of a same material as that of the connection.