X-ray detector

An X-ray detector, comprising:

• a substrate;
• a ground line on the substrate;
• an insulating film over the substrate, the insulating film exposing a portion of the ground line;
• a first active pattern and a second active pattern spaced apart from each other on the insulating film;
• a first gate line on the first active pattern;
• a second gate line on the second active pattern;
• a first interlayer insulating film over the first gate line, the second gate line, the first active pattern, the second active pattern, and the insulating film, the first interlayer insulating film comprising a contact hole that exposes the portion of the ground line;
• a bias line on a first side of the first gate line, the bias line in contact with the first active pattern through the first interlayer insulating film;
• a first electrode on a second side of the first gate line that is opposite the first side of the gate line, the first electrode in contact with the first active pattern through the first interlayer insulating film;
• a second electrode on a first side of the second gate line, the second electrode in contact with the second active pattern through the first interlayer insulating film;
• a data line on a second side of the second gate line that is opposite the first side of the gate line, the data line in contact with the second active pattern through the first interlayer insulating film;
• a ground electrode in contact with the exposed portion of the ground line though the contact hole in the first interlayer insulating film;
• a second interlayer insulating film over the bias line, the first electrode, the second electrode, the data line, and the ground electrode;
• a first storage electrode in contact with the first electrode through the second interlayer insulating film, the first storage electrode overlapping a first end of the ground electrode;
• and
• a second storage electrode in contact with the second electrode through the second interlayer insulating film, the second storage electrode overlapping a second end of the ground electrode that is opposite the first end of the ground electrode, the second storage electrode horizontally spaced apart from the first storage electrode.

An X-ray detector, comprising:

• a substrate;
• a first transistor including a first active pattern on the substrate;
• a second transistor including a second active pattern on the substrate;
• a ground electrode on the substrate, the ground electrode between the first transistor and the second transistor;
• a first storage electrode that partially overlaps the first active pattern and overlaps a first end of the ground electrode;
• a second storage electrode that completely overlaps the second active pattern and overlaps a second end of the ground electrode that is opposite the first end of the ground electrode;
• and
• a scintillator layer that emits light in response to receiving an X-ray;
• wherein the second storage electrode shields the second active pattern of the second transistor from the emitted light and the first storage electrode partially shields the first active pattern of the first transistor from the emitted light.