Display device including stressors

A display device comprising:

• a first semiconductor layer arranged on a buffer layer and including a first channel region directly contacting the buffer layer, a first source region, and a first drain region;
• a first stressor arranged between the buffer layer and the first semiconductor layer and which is overlapped by the first source region in a thickness direction of the first semiconductor layer;
• a second stressor arranged between the buffer layer and the first semiconductor layer and which is overlapped by the first drain region in the thickness direction, the second stressor being spaced apart from the first stressor;
• a second semiconductor layer arranged directly on the buffer layer such that an entire lower surface of the second semiconductor layer contacts the buffer layer;
• a gate insulating layer arranged on the first semiconductor layer and the second semiconductor layer;
• a first gate electrode arranged on the gate insulating layer and which overlaps the first semiconductor layer in the thickness direction;
• and
• a second gate electrode arranged on the gate insulating layer and which overlaps the second semiconductor layer in the thickness direction.