Array substrate, display panel, and electronic device

A display panel, comprising an array substrate, the display panel comprising:

• a substrate comprising a first base substrate and a control component disposed on the first base substrate;
• a third metal layer disposed on the substrate, wherein the third metal layer comprises a first electrode and a first metal part, and the first electrode is connected to the control element through a first via;
• a PIN diode disposed on the first electrode, wherein the PIN diode comprises a first semiconductor layer and an intrinsic semiconductor layer;
• a third insulating layer disposed on the PIN diode;
• a first conductive layer disposed on the third insulating layer, wherein the first conductive layer comprises a first connection part, and the first connection part is connected to the first metal part;
• a fourth insulating layer disposed on the first conductive layer, wherein the fourth insulating layer is provided with a second via;
• a second conductive layer disposed on the fourth insulating layer and in the second via, wherein the second conductive layer comprises a second electrode, the second electrode covers the PIN diode, and the second electrode is connected to the first connecting portion through the second via;
• and
• a second substrate, wherein the second substrate is disposed opposite to the array substrate.