Display device and method of manufacturing the same

A display device, comprising:

• a lower conductive pattern disposed on a substrate;
• a lower insulating layer disposed on the lower conductive pattern, the lower insulating layer including a first lower insulating pattern including:
• an overlapping region overlapping the lower conductive pattern;
• and
• a protruding region;
• a semiconductor pattern disposed on the first lower insulating pattern and having a side surface, the side surface being aligned with a side surface of the first lower insulating pattern or disposed inward from the side surface of the first lower insulating pattern;
• a gate insulating layer disposed on the semiconductor pattern;
• a gate electrode disposed on the gate insulating layer;
• and
• an empty space disposed between the substrate and the protruding region of the first lower insulating pattern, wherein
• an upper portion of the empty space is defined by a lower surface of the protruding region of the first lower insulating pattern,
• a side portion of the empty space is defined by the side surface of the lower conductive pattern, and
• another side portion of the empty space is defined by the gate insulating layer.