Sound production device, display device, and terminal

A display device, comprising:

• a display substrate having an opening area and a non-opening area;
• and
• at least one sound production device, arrayed on the display substrate;
• wherein each of the at least one sound production device comprises:
• a first electrode layer arranged on the display substrate;
• an insulating layer arranged on a side of the first electrode layer away from the display substrate;
• an electromagnetic coil arranged on a side of the insulating layer away from the first electrode layer, wherein a vertical projection of the electromagnetic coil on the display substrate falls on the non-opening area, the insulating layer defines a via, and the electromagnetic coil and the first electrode layer are electrically connected through the via;
• and
• a magnetic diaphragm arranged on a side of the electromagnetic coil away from the insulating layer, spaced apart from the electromagnetic coil and configured to vibrate and produce sounds in response to a magnetic field generated by the electromagnetic coil, wherein a vertical projection of the magnetic diaphragm on the display substrate falls on the non-opening area.

A terminal, comprising:

• a display device, comprising:
• a display substrate, the display substrate having an opening area and a non-opening area;
• and
• at least one sound production device arranged on the display substrate;
• wherein each of the at least one sound production device comprises:
• a first electrode layer arranged on the display substrate;
• an insulating layer arranged on a side of the first electrode layer away from the display substrate;
• an electromagnetic coil arranged on a side of the insulating layer away from the first electrode layer, wherein a vertical projection of the electromagnetic coil on the display substrate falls on the non-opening area, the insulating layer defines a via, and the electromagnetic coil and the first electrode layer are electrically connected through the via;
• and
• a magnetic diaphragm arranged on a side of the electromagnetic coil away from the insulating layer and configured to vibrate and produce sounds in response to a magnetic field generated by the electromagnetic coil, wherein a vertical projection of the magnetic diaphragm on the display substrate falls on the non-opening area.