Display device

A display device comprising:

• a pixel layer for displaying an image;
• and
• a circuit layer including a thin film transistor for driving the pixel layer, wherein
• the thin film transistor includes
• a semiconductor layer including a channel region and a source region and a drain region sandwiching the channel region,
• a first gate electrode facing the channel region on a first side which is either on or below the semiconductor layer,
• a second gate electrode facing at least the channel region and the source region on a second side opposite to the first side,
• a source electrode connected to the source region, and
• a drain electrode connected to the drain region, and
• the source electrode penetrates through the semiconductor layer and is connected to the second gate electrode on the second side, wherein
• the drain electrode penetrates through the semiconductor layer and extends to the second side without contacting the second gate electrode,
• the second gate electrode has a central region overlapping with the first gate electrode each other, and has a first end below a side of the drain electrode and a second end below a side of the source electrode,
• a distance from the central region to the second end is larger than a distance from the first gate electrode to the source electrode in a plan view,
• the first end and the second end are equally spaced apart from the central region,
• the second gate electrode faces the drain region and has a hole, and
• the drain electrode extends inside the hole of the second gate electrode.