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H01L 27/12 (2006.01); H01L 29/49 (2006.01); H01L 29/786 (2006.01); H10K 59/121 (2023.01); H10K 59/124 (2023.01); H10K 59/131 (2023.01); H10K 50/842 (2023.01);

U.S. Cl.

CPC ...

H10K 59/131 (2023.02); H01L 29/4908 (2013.01); H01L 29/78606 (2013.01); H10K 59/1213 (2023.02); H10K 59/124 (2023.02); H10K 59/1315 (2023.02); H01L 27/1237 (2013.01); H01L 27/124 (2013.01); H01L 27/1255 (2013.01); H01L 27/1259 (2013.01); H10K 50/8428 (2023.02);

Abstract

A display device includes: a substrate; a semiconductor layer; a gate electrode overlapping the semiconductor layer; a common voltage line disposed on a same layer as the gate electrode; a common voltage line anti-oxidation layer disposed on the common voltage line; an interlayer insulating layer; source and drain electrodes disposed on the interlayer insulating layer; and a common voltage applying electrode disposed on a same layer as the source electrode and the drain electrode. The common voltage applying electrode is connected to the common voltage line through a first contact hole formed in the interlayer insulating layer, the common voltage line anti-oxidation layer includes an opening overlapping the common voltage line, the interlayer insulating layer is disposed in the opening, a width of the opening is smaller than a width of the common voltage line, and the first contact hole is disposed in the opening in a plan view.

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