Patent ID: 7791080

Claim:
An image TFT array of a direct X-ray image sensor, comprising: a substrate having a capacitor region and a transistor region; a storage capacitor in the capacitor region comprising: a first transparent conductive layer on the substrate, a gate insulation layer on the first transparent conductive layer, and a second transparent conductive layer directly in contact with a top surface of the gate insulation layer; a thin film transistor in the transistor region comprising: a first metal layer, the gate insulation layer extending from the capacitor region, an island structure on the gate insulation layer, a second metal layer as a source/drain electrode on the island structure, a passivation layer bordering the source/drain electrode and covering the transistor region, and a third transparent conductive layer directly on a top surface of the passivation layer and covering a channel region between the source electrode and the drain electrode; and a common line comprising the first metal layer, wherein the common line extends transversely on the first transparent conductive layer and the substrate and is covered by the gate insulation layer.