Patent ID: 8426870

Claim:
A thin-film transistor array device, the thin-film transistor array device being stacked with an electroluminescence layer, an interlayer insulating film between the electroluminescence layer and the thin-film transistor array device, the electroluminescence layer including electroluminescence light-emitting elements that each include a lower electrode, the thin-film transistor array device comprising: a substrate; a first transistor above the substrate and including a first transistor gate electrode and a first transistor source electrode; a second transistor including a current-supply electrode for supplying current, the current-supply electrode being electrically connected to the lower electrode; a passivation film between the interlayer insulating film and both the first transistor and the second transistor; a source wire above the substrate and below the passivation film in a first layer, the source wire being electrically connected to the first transistor source electrode; a gate wire transverse to the source wire and above the passivation film in a second layer different than the first transistor gate electrode, the gate wire being electrically connected to the first transistor gate electrode via a first hole in the passivation film; a relay electrode above the passivation film in the second layer and overlapping with the current-supply electrode for being a relay between the current-supply electrode and the lower electrode; and a conductive oxide film above the passivation film and between the passivation film and both the gate wire and the relay electrode, the conductive oxide film being electrically disconnected between the gate wire and the relay electrode; wherein the first transistor and the second transistor are bottom gate transistors, an end portion of the source wire is exposed through the passivation film via a second hole in the passivation film, the end portion of the source wire being connectible with a source driving circuit that is outside the thin-film transistor array device, the conductive oxide film covers the end portion of the source wire that is exposed through the passivation film via the second hole, the current-supply electrode is electrically connected to the lower electrode via a third hole in the passivation film, the conductive oxide film is between the current-supply electrode and the relay electrode and electrically connects and the current-supply electrode and the relay electrode, and the relay electrode comprises a same material as the gate wire.