Display apparatus

A display apparatus comprising:

• a substrate;
• a driving power line extending on the substrate in a first direction;
• a driving thin-film transistor electrically connected to the driving power line;
• and
• a storage capacitor electrically connected to the driving thin-film transistor and comprising a first capacitor electrode and a second capacitor electrode overlapping the first capacitor electrode,
• wherein the driving thin-film transistor comprises:
• a driving gate electrode comprising a first sub-layer on the substrate and a second sub-layer on the first sub-layer;
• a gate insulating layer on the driving gate electrode;
• a driving semiconductor layer on the gate insulating layer and comprising a channel area, a first low-resistance area, and a second low-resistance area, wherein the channel area overlaps the driving gate electrode, and the first and second low-resistance areas are at a same layer and extending at both sides of the channel area, and
• a first electrode overlapping and electrically connected to one of the first low-resistance area or the second low-resistance area, and the channel area between the first electrode and the driving gate electrode in a thickness direction of the display apparatus,
• wherein a width of the first sub-layer is greater than a width of the second sublayer,
• the channel area is arranged along a side surface of the second sub-layer, and
• the first capacitor electrode comprises a first capacitor sub-layer, which comprises a same material as the first sub-layer, and a second capacitor sub-layer, which comprises a same material as the second sub-layer.